巴西专利BR112014027969B1 replaceable suturing head and suturing device

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专利摘要:
REPLACEABLE SUTURATION HEAD, REPLACEABLE NEEDLE CARTRIDGE AND SUTURATION DEVICE. It is a replaceable suturing head (3) for a suturing device (1) comprising a control assembly (8-11). The suturing head comprises a suturing portion (4). The sewing portion comprises a curved sewing needle arranged to move around a circular path defined by a plurality of cylinders (35, 36, 37, 38, 39, 40, 44, 45, 46, 47) mounted thereon. cylinder rods (41, 42, 43) within the sewing portion, at least one of the plurality of cylinders being a drive cylinder driven by the drive motor (10) to move the sewing needle (16) to the around the circular path. One or more of the cylinder rods is mounted inside the suture portion so that it can pivot around its base.
公开号:BR112014027969B1
申请号:R112014027969-1
申请日:2013-05-08
公开日:2021-07-06
发明作者:Alexander Charles Berry
申请人:Sutrue Limited；
IPC主号:

专利说明:

FIELD OF THE INVENTION
[0001] The present invention relates to a replaceable suturing head, a replaceable needle cartridge and a suturing device. BACKGROUND OF THE INVENTION
[0002] The suturing of tissue from a human or animal body is traditionally done manually, using a curved suturing needle, which is often retained with the use of forceps. However, devices to aid suturing are known.
[0003] Document no. US 2009/024124 A (Meade et al.) discloses a suturing device with a drive mechanism that drives a curved suturing needle around a circular track. The curved sewing needle has an engagement surface, which is a notch into which the grip of a drive arm engages to push the sewing needle around the circular track. The device is particularly intended to provide enough torque to drive the suturing needle through bone tissue.
[0004] US 2007/239177 A (Stokes et al.) similarly discloses a suturing device that drives a curved suturing needle around a circular track. The curved suturing needle can be actuated by a member acting as a smooth friction cam, which is an arc-shaped member that makes contact with a portion of the suturing needle, and moves around the circular track, thus actuating the suturing needle around the friction path. Alternatively, the curved suturing needle can be actuated by a barbed limb that acts as a friction cam, in which case the suturing needle is also barbed.
[0005] Document in CA 2008759 A (Brunk Industries Inc.) discloses a suturing device that drives a curved suturing needle through four drive cylinders that make contact with the diametrically outer surface of the suturing needle. The drive cylinders are spaced apart so that at all times at least two are in contact with the suturing needle.
[0006] Document No. GB 2389313 A (Advanced Plastic technologies Limited) discloses a suturing device that drives a curved suturing needle through three drive cylinders that make contact with the diametrically inner surface of the suturing needle.
[0007] There are several problems associated with these known suturing devices. The drive means used to rotate the suturing needles are often bulky, making the devices difficult to use. The actuation means may require that special sewing needles are used, for example toothed sewing needles or notched sewing needles. Alternatively, special suturing needles covering a large part of a circle may be required so that the suturing needle is at all times in contact with sufficient components of the drive means to allow the suturing needle to be rotated with success. Especially when in effective use, suturing needles may deviate from their intended circular path, which can affect suturing quality and, in some cases, may prevent the device from working completely or even lead to rupture of the suturing needle.
[0008] The present invention seeks to solve or mitigate some or all of the problems mentioned above. Alternatively and/or additionally, the present invention seeks to provide an improved suturing device that can be used with existing standard suturing needles. SUMMARY OF THE INVENTION
[0009] According to a first aspect of the invention, there is provided a suturing head replaceable by a suturing device comprising a control assembly, wherein the suturing head comprises a suturing portion; wherein a sewing portion comprises a curved sewing needle arranged to move around a circular path defined by a plurality of cylinders mounted on cylinder rods within the sewing portion, wherein at least one of the plurality of cylinder is a drive cylinder driven by the drive motor to move the suturing needle around the circular path; and wherein one or more of the cylinder rods is mounted within the sewing portion so that it can pivot around the base thereof.
[0010] Allowing the cylinder rods to pivot around one end, i.e., the base of the cylinder, allows the needle to move a certain distance, in the direction of the rod axis, as may be required, for example, if the needle is going to pass through hard tissue, such as bone without fracture. Advantageously, the base of one or more cylinder rods has a spherical end. This allows the cylinder rod to be mounted in a spherical recipient hole in the suture portion that holds the cylinder rod in place, while also allowing it to pivot.
[0011] Preferably, a sewing portion comprises tilting means for tilting one or more cylinder rods so that its cylinder is tilted towards the sewing needle. This provides improved grip between the cylinders and the suturing needle. This also keeps the rods in position within the suture portion, and allows the cylinders to force the needle back into the center position. Advantageously, the biasing means is a spring plate mounted parallel to the circular path of the suturing needle. A spring plate, which acts in conjunction with rotating gear teeth and cylinders and cylinder rods, imparts mechanical tension to the needle to allow mechanical tightening during needle rotation. A spring plate can be produced from a sheet of resilient material such as steel or nylon. Advantageously, a spring plate comprises a plurality of voids, and the cylinder rods extend through the holes formed by the voids. This allows a spring plate to be positioned where it contacts the needle. Advantageously, the voids in the spring plate form rod springs in the spring plate which press against the cylinder rods. When the rods have spherical shaped ends, this advantageously allows them to easily pass through the spring plate voids during the construction of the suturing head. Alternatively, the biasing means may be compression springs, leaf springs or any other biasing means which acts to provide an appropriate bias to the rods.
[0012] Advantageously, a replaceable suturing head suturing portion comprises a body portion and a replaceable needle cartridge containing the suturing needle. This allows the needle cartridge to be replaced after a single use, while allowing the remainder of the suture head to be reused. This is advantageous as the suture head will contain various mechanical components such as gear teeth and other elements and is therefore expensive to replace. However, since the suture head is itself replaceable, it can be replaced after several uses, for example, when gear teeth and other elements have become worn due to friction, without requiring the assembly of control is replaced at the same time. Preferably, the plurality of cylinders are mounted on the body portion, and the replaceable needle cartridge comprises indentations in which the cylinders extend to allow the cylinders to contact the sewing needle. This allows the more expensive suturing head elements to be mounted on the body portion, so they do not need to be discarded along with the needle cartridge. Preferably, the cartridge is configured and sized for use with a standard size curved suture needle. Advantageously, replaceable needle cartridges are supplied directly from suture fabrication which significantly reduces packaging and the risk of damage as current suture needles, after use, must be disposed of with the potentially contaminated sharp end exposed.
[0013] Advantageously, the cylinder surfaces are arranged so that they automatically actuate the needle, towards the center of each cylinder. Along with the cartridge, the suture always remains in the center, in the head track. Along with the cartridge and the plurality of cylinders, this acts to hold the suturing needle in place, on the circular path. The cylinder, or cylinders, comprises a curvilinear design, which acting in plurality, tightens the suture needle. This allows the force to be efficiently transmitted from the cylinder or cylinders to the suturing needle, increasing available torque. Advantageously, the cylinder design is curved around its rotating surface and also along the surface perpendicular to the rotating surface. Advantageously, the rotating surface of at least one of the plurality of cylinders is arranged to provide a desired drive surface. Advantageously, at least one of the plurality of cylinders comprises a plurality of slotted recesses extending inwardly from its rotating surface. Preferably, of course, all cylinders are so arranged. Slotted recesses allow the drive service to move flexibly. The cylinder surfaces, along with a dimensional tolerance between cylinder and rod, allow the cylinder to deviate sufficiently from the rod diameter to tighten the suturing needle. Alternatively, the cylinders can have a V-shaped groove. The groove can comprise teeth. Cylinders can be produced from a rubber material. Alternatively, the cylinders can be produced from a porous material, and have a coating of a rubber material.
[0014] Advantageously, the plurality of cylinders comprises a first driven cylinder, arranged on a first side of the circular track and corresponding to a second and a third free-rotating cylinder arranged on the opposite side of the circular track, from the first driven cylinder , and in which the first, second and third cylinders act to retain the suturing needle in the circular path. The three cylinders will provide a triangular configuration that acts to hold the needle in position, even when it is only in contact with those three cylinders. The current roll and pitch of the suture is maintained through the cartridge, which has a channel that allows the suture to maintain its trajectory. Such a plurality of cylinders may be provided at one or both ends of the portion of the circular track covered by the body portion.
[0015] Advantageously, a cartridge portion comprises a cone-shaped indentation located on the circular track to guide the inlet end of the suturing needle into alignment with the circular path. Such cone-shaped indentation may be provided at one or both ends of the portion of the circular track covered by the body portion.
[0016] Advantageously, the suturing head comprises a light to illuminate the suturing needle as it exits the body portion. The light source may be contained with a portion of the device cable. The light source can be provided via a fiber optic cable from the light source. The sewing head may comprise a dimple located adjacent the circular track to indicate the point at which the sewing needles exit the body portion.
[0017] Preferably, a body portion of the suturing portion is open on a first side of the circular path. This allows the suture end thread, attached to the needle, to move around the circular path without rejoining the body portion. Additionally, this allows the cartridge to be removed from the body portion, and the sewing needle can then be removed from the cartridge to allow for manual sewing, if required.
[0018] The suturing head may comprise a stem for attaching to the control assembly. The trunk of the suture head can be arranged to be secured to an endoscopic tube. Alternatively the trunk of the suture head can be arranged to be secured to a cable comprising the control assembly, which can be retained while suturing.
[0019] According to a second aspect of the invention, there is provided a replaceable needle cartridge for a replaceable suturing head, as described above. Advantageously, the replaceable needle cartridge contains a standard-size curved suturing needle.
[0020] According to a third aspect of the invention there is provided a suturing device comprising a control assembly comprising a drive motor and a control apparatus for controlling the drive motor; and a replaceable suture head, as described above.
[0021] Advantageously, the control assembly is disposed, in response to an input from a user, at the position of the sewing needle, completely within the cartridge that is within the body portion of the sewing portion for removal of the suture. disposable cartridge and/or replaceable suturing head. This allows the cartridge, or suturing head, to be safely removed and discarded without risk of damage from the suturing needle.
[0022] Advantageously, the control assembly is arranged, in response to input from a user, to rotate the suturing needle once around the circular path. This assists in the suturing process.
[0023] According to another aspect of the invention there is provided a replaceable suturing head for a suturing device comprising a control assembly, wherein the suturing head comprises a stem for attaching to the control assembly, and a portion of suturing mounted on the trunk; wherein a sewing portion comprises a curved sewing needle arranged to move around a circular path defined by a plurality of cylinders mounted on cylinder rods within the sewing portion, wherein at least one of the plurality of cylinder is a drive cylinder driven by the drive motor to move the suturing needle around the circular path; and wherein a replaceable suturing head sewing portion comprises a trunk mounted body portion, and a replaceable needle cartridge containing the sewing needle.
[0024] Advantageously, the plurality of cylinders are mounted on the body portion, and the replaceable needle cartridge comprises indentations into which the cylinders extend to allow the cylinders to contact the suturing needle.
[0025] Other aspects of the invention are described in the following clauses: 1. A suturing device, comprising: a control assembly comprising a drive motor and a control apparatus for controlling the drive motor; a replaceable sewing head comprising a trunk for attaching to the control assembly, and a sewing portion mounted to the trunk; wherein a sewing portion comprises a curved sewing needle arranged to move around a circular path defined by a plurality of rod-mounted cylinders within the sewing portion; and wherein at least one of the plurality of cylinders is a drive cylinder, driven by the drive motor to move the suturing needle around the circular path. 2. A sewing device as described in clause 1, wherein a replaceable sewing head sewing portion comprises a trunk mounted body portion, and a replaceable needle cartridge containing the sewing needle. 3. A suturing device as described in clause 2, wherein the plurality of cylinders are mounted to the body portion, and the replaceable needle cartridge comprises indentations into which the cylinders extend to allow the cylinders to contact the needle. suturing. 4. A sewing device, as described in any of the preceding clauses, wherein the cylinder rods are mounted within the sewing portion so that they can pivot around one end. 5. A sewing portion as described in clause 4, wherein the sewing portion comprises biasing means for holding the rods in position within the sewing portion. 6. A sewing device as described in clause 5, wherein the biasing means is a spring plate mounted parallel to the circular path of the sewing needle. 7. A suturing device as described in clause 6, wherein the spring plate comprises a plurality of cutouts, and wherein the cylinder rods extend through the holes formed by the cutouts. 8. A sewing device as described in clause 7, wherein cuts in the spring plate form rod springs which retain the cylinder rods in position within the sewing portion. 9. A suturing portion, as described in any of the preceding clauses, wherein the base of at least one cylinder rod has a spherical end. 10. A suturing device as claimed in any of the preceding clauses, wherein the rotating surface of at least one of the plurality of cylinders is arranged to provide a desired drive surface. 11. A suturing device as described in any of the preceding clauses, wherein at least one of the plurality of cylinders comprises a plurality of slotted recesses extending inwardly from its rotating surface. 12. A suturing device as described in any of the preceding clauses, wherein the plurality of cylinders comprises a first cylinder disposed on a first side of the circular track, and corresponding to the second cylinder and third cylinder disposed on the opposite side of the circular track from the first drive cylinder, and wherein the first, second and third cylinders act to retain the suturing needle in the circular path. 13. A sewing device as described in any of the preceding clauses, wherein the body portion of the sewing portion comprises a cone-shaped indentation located on the circular track to guide an inlet at the end of the sewing needle for alignment with the circular trajectory. 14. A sewing device as described in any of the preceding clauses, wherein the sewing head comprises a light to illuminate the sewing needle as it exits the body portion. 15. A sewing device as described in any of the preceding clauses, wherein the body portion of the sewing portion is open on a first side of the circular path. 16. A sewing device, as described in any of the preceding clauses, wherein the control assembly is arranged, in response to input from a user, to position the sewing needle completely within the body portion of the suture for removal of the replaceable cartridge within the replaceable suture head. 17. A sewing device, as described in any of the preceding clauses, wherein the control assembly is arranged, in response to input from a user, to rotate the sewing needle once around the circular path. 18. A suturing device as described in any of the preceding clauses, wherein the suturing head is configured and sized for use with a standard-sized curved suturing needle. 19. A suturing device as described in any of the preceding clauses, wherein the body portion of the suturing portion contains a spring plate which, acting in conjunction with rotating gear and cylinder rods, transmits mechanical tension to the needle both in the tapered and non-tapered section, to allow mechanical tightening during needle rotation. 20. A suturing head replaceable by a suturing device, as described in any one of clauses 1 to 17. 21. A cartridge replaceable by a suturing device, as described in clause 2 or 3. 22. A replaceable suturing head, as described in clause 20, or a replaceable cartridge, as described in clause 21, which contains a standard-size curved suturing needle.
It will of course be appreciated that features described in relation to one aspect of the present invention may be incorporated into other aspects of the present invention. DESCRIPTION OF DRAWINGS
[0027] The embodiments of the present invention will now be described, by way of example, only with reference to the accompanying schematic drawings, among which:
[0028] Figure 1 shows an isometric view of a suturing device, according to a first embodiment of the invention;
[0029] Figure 2 shows an isometric view of the sewing device of Figure 1, with the sewing head rotated;
[0030] Figure 3 shows an isometric view of the suturing device of Figure 1 in two pieces;
[0031] Figure 4 shows an isometric view of the suturing device of Figure 1 in three pieces;
[0032] Figure 5 shows an isometric view of the underside of the sewing head of the sewing device of Figure 1;
[0033] Figure 6 shows a side view of the sewing head of the sewing device of Figure 1;
[0034] Figure 7 shows a top view of the sewing head of the sewing device of Figure 1, with the head in the fixed central position;
[0035] Figure 8 shows a top view of the sewing head of the sewing device of Figure 1, with the head in a rotated position;
[0036] Figure 9 shows an isometric view of the internal working mechanism of the sewing head of the sewing device of Figure 1;
[0037] Figure 10 shows an isometric view of the gear mechanism only of the sewing head of the sewing device of Figure 1;
[0038] Figure 11 shows an isometric view of the underside of the internal working mechanism of the sewing head of the sewing device of Figure 1;
[0039] Figure 12 shows a top view of the internal working mechanism of the sewing head of the sewing device of Figure 1;
[0040] Figure 13 shows a top view of the gear mechanism only of the sewing head of the sewing device of Figure 1;
[0041] Figure 14 shows an isometric view of a free-standing cylinder and rod of the suturing device of Figure 1;
[0042] Figure 15 shows a side view of the gear mechanism only of the sewing head of the sewing device of Figure 1;
[0043] Figure 16 shows an isometric view of the driven cylinder and the corresponding gear and rod of the suturing device of Figure 1;
[0044] Figure 17 shows a side view of the driven cylinder and the corresponding gear and rod of the suturing device of Figure 1;
[0045] Figure 18 shows an isometric view of the cylinder driven only by the suturing device of Figure 1;
[0046] Figure 19 shows an isometric view of the spring plate of the suturing device of Figure 1;
[0047] Figure 20 shows a top view of the spring plate of the suturing device of Figure 1;
[0048] Figure 21 shows an isometric view of the sewing head needle cartridge of the sewing device of Figure 1;
[0049] Figure 22 shows a top view of the sewing head needle cartridge of the sewing device of Figure 1;
[0050] Figure 23 shows a side view of the sewing head needle cartridge of the sewing device of Figure 1;
[0051] Figure 24 shows an isometric view of the bottom of the sewing head needle cartridge of the sewing device of Figure 1;
[0052] Figure 25 shows an isometric view of the suturing head without the needle cartridge of the suturing device of Figure 1;
[0053] Figure 26 shows an isometric view of the sewing head without the needle cartridge and without the cylinders of the sewing device of Figure 1;
[0054] Figure 27 shows an isometric view of the cable of the suturing device of Figure 1;
[0055] Figure 28 shows a side view of the cable of the suturing device of Figure 1;
[0056] Figure 29 shows a top view of the suturing device cable of Figure 1;
[0057] Figure 30 shows a cross-sectional view of the cable of the sewing device of Figure 1;
[0058] Figure 31 shows an isometric view of the spur idler gear of the suturing device of Figure 1;
[0059] Figure 32 shows a side view of the straight-rod intermediate gear of the sewing device of Figure 1;
[0060] Figure 33 shows a top view of the spur intermediate gear of the suturing device of Figure 1;
[0061] Figure 34 shows an isometric view of a suturing device, according to another embodiment of the invention;
[0062] Figure 35 shows an isometric view of the suturing device of Figure 34 in two pieces;
[0063] Figure 36 shows an isometric view of the suturing device of Figure 34 with the needle cartridge partially removed;
[0064] Figure 37 shows an isometric view of the suturing device of Figure 34 with the needle cartridge completely removed;
[0065] Figure 38 shows an isometric view of the suturing device of Figure 34 with the needle partially rotated;
[0066] Figure 39 shows an alternative view of the suturing device of Figure 34 with the needle partially rotated;
[0067] Figure 40 shows a front view of the sewing head of the sewing device of Figure 34;
[0068] Figure 41 shows a front view of the sewing head of the sewing device of Figure 34 with the needle cartridge removed;
[0069] Figure 42 shows a front view of the sewing head of the sewing device of Figure 34 with the needle cartridge and drive cylinders removed;
[0070] Figure 43 shows a front view of the sewing head of the sewing device of Figure 34 with the needle cartridge, drive cylinders and rods removed;
[0071] Figure 44 shows a front view of the sewing head of the sewing device of Figure 34 with the needle cartridge, drive cylinders and spring plate removed;
[0072] Figure 45 shows an exploded view of the sewing head of the sewing device of Figure 34;
[0073] Figure 46 shows a top isometric view of the sewing head needle cartridge of the sewing device of Figure 34;
[0074] Figure 47 shows an upper front view of the sewing head needle cartridge of the sewing device of Figure 34;
[0075] Figure 48 shows a top isometric view of the needle cartridge of the sewing head of the sewing device of Figure 34 with the needle partially rotated;
[0076] Figure 49 shows a top view of the sewing head needle cartridge of the sewing device of Figure 34 with the needle partially rotated;
[0077] Figure 50 shows an isometric view of the underside of the needle cartridge of the sewing head of the sewing device of Figure 34 with the needle partially rotated;
[0078] Figure 51 shows an isometric view of the underside of the sewing head needle cartridge of the sewing device of Figure 34;
[0079] Figure 52 shows a side view of the drive cylinder and corresponding gear tooth and rod with the spherical base of the suturing head of the suturing device of Figure 34;
[0080] Figure 53 shows an isometric view of the drive cylinder and corresponding gear tooth and rod with the spherical base of the sewing head of the sewing device of Figure 34;
[0081] Figure 54 shows a side view of the stabilizer cylinder and corresponding rod of the sewing head of the sewing device of Figure 34;
[0082] Figure 55 shows an isometric view of the stabilizer cylinder and corresponding rod of the suturing head of the suturing device of Figure 34;
[0083] Figure 56 shows an isometric view of the straight-stem intermediate gear tooth of the suturing device of Figure 34;
[0084] Figure 57 shows an isometric view of the drive train of the sewing device of Figure 34;
[0085] Figure 58 shows a top view of the series of gear teeth of the suturing device of Figure 34;
[0086] Figure 59 shows a top view of the series of cylinders of the sewing device of Figure 34;
[0087] Figure 60 shows the cross-sectional side view of the head section of the sewing device of Figure 34 with an internal and external drive cylinder, corresponding to drive gear teeth and gear tooth rods, with bases spherical in start position;
[0088] Figure 61 shows a top view of the spring plate within the head section of the sewing device of Figure 34 with the spring elements in the start position;
[0089] Figure 62 shows a cross-sectional side view of the head section of the sewing device of Figure 34 with an inner and outer drive cylinder, corresponding to drive gear teeth and gear tooth rods with ball bases rotated, due to the inclusion of the needle;
[0090] Figure 63 shows a top view of the spring plate within the head section of the suturing device of Figure 34 with the spring elements under tension, rotated, due to the inclusion of the needle;
[0091] Figure 64 shows an isometric view of the suturing device cable of Figure 34;
[0092] Figure 65 shows a cross-sectional side view of the suturing device cable of Figure 34;
[0093] Figure 66 shows a top view of a first example of the spring plate of the sewing device of Figure 34;
[0094] Figure 67 shows a top view of another example of the spring plate of the sewing device of Figure 34;
[0095] Figure 68 shows a top view of another example of the spring plate of the sewing device of Figure 34;
[0096] Figure 69 shows a top view of another example of the spring plate of the suturing device of Figure 34. DETAILED DESCRIPTION
[0097] A suturing device, according to a first embodiment of the invention, is now described with reference to Figures 1 to 33.
[0098] As shown in Figures 1 and 2, the sewing device 1 comprises a cable 2 and a replaceable sewing head 3. The sewing device 1 with the sewing head 3 removed is shown in Figures 3 and 4.
[0099] Cable 2 is shown in more detail in Figures 27 to 30. Cable 2 contains a control assembly comprising a drive motor 10, a control switch 8, a power cell 11 and a secondary button 9. The control assembly controls a drive interface 15, which meshes with a drive coupling 21 of the suture head 3, as described later below.
[00100] The suturing head 3 comprises a suturing portion 4, a swivel section 5, a replaceable needle cartridge 6 and a stem 13. The suturing head 3 with the needle cartridge 6 removed is shown in Figure 4.
[00101] The suturing head 3 is shown in detail in Figures 5 to 8. The swivel section 5 which includes a substantially semicircular (or "U-shaped") portion that contains the needle cartridge 6, which retains a needle. suturing 16, as described in more detail below. As shown in Figures 21 to 24, an open slot 56 along the center of the needle cartridge 6 results in an opening also at the end of the needle cartridge 6. The opening at the inlet end of the cartridge is surrounded by an indentation in the shape of a taper 58. Also at the inlet end of the cartridge 6 there is a thread guide 55 protruding from the bevelled side 57 of the open slot 56 to allow the suture (not shown) to be guided out of the needle cartridge 6 during the needle rotation 16.
[00102] The internal components of suture head 3 are shown in Figure 9 through 14. As mentioned above, trunk 13 contains a drive coupling 21, which is driven by corresponding drive interface 15 of cable 2. The drive coupling 21 is attached to a drive rod 22. The drive rod 22 ends in a spur gear 20 which engages a ring gear 50 which is mounted on a rod 49, which has top mounted a large gear tooth 48, with the same shaft . In alternative embodiments, the transfer of drive direction, achieved by the combination of spur gear 20 and crown gear 50, can be achieved by any other means of kinetic-mechanical shifting translation, such as beveled or worn gears.
[00103] Large gear tooth 48 engages with reduction gear teeth 33 and 34, each mounted on a fixed rod 42. Reduction gear teeth 33 and 34 additionally engage with drive gear teeth 23 and 24 mounted on a gear tooth rod, with a spherical base 41. Each of these rods is also mounted with drive cylinders 44 and 45 respectively. The drive gear teeth 23 and 24 additionally engage with drive gear teeth 25 and 26, respectively, each mounted on a fixed rod 42. The drive gear teeth 23 and 24 also additionally engage with the drive gear teeth. drive 27 and 28, respectively, mounted on a gear tooth rod with a spherical base 41. Each of these rods is also mounted with outer cylinders 35 and 36 respectively. Drive gear teeth 25 and 26 additionally engage with drive gear teeth 29 and 30, respectively, each mounted on a fixed rod 42. Each of these rods is also mounted with drive cylinders 46 and 47 respectively. Drive gear teeth 29 and 30 also additionally engage with drive gear teeth 31 and 32, respectively, mounted on a gear tooth shaft with a spherical base 41. Each of these shafts is also mounted with outer cylinders 37 and 38 respectively. Outer cylinders 39 and 40 are each mounted on an independent rod with a ball base 43.
[00104] The mounting of gear teeth and cylinders on the rods is shown in more detail in Figures 15 to 17.
[00105] The drive cylinders 44, 45, 46, 47 and the outer cylinders 35, 36, 37, 38, 39, 40 are of the same design, although dimensioned proportionally to correspond to the difference, in diameter, between the inner diameter and external of the needle. A cylinder is shown in more detail in Figure 18. The cylinder has a series of rib-like drive surfaces 51 formed by slotted recesses 52 extending inwardly from the drive surface 53 of cylinders. The curved drive surfaces 51 are curved and undulating on the axis of rotation of the cylinders so that the drive surface 53 curves inwardly towards the axis of the cylinder between the top and bottom of the cylinder. The recesses 52 extend from the drive surface 53, tapering to the cylinder's original diameter so that they are approximately triangular in shape.
[00106] In an alternative embodiment, the cylinder has a V-shaped groove in which the needle is retained. In another alternative embodiment, the cylinder has a groove that contains teeth that grip the needle. In another alternative embodiment, the cylinder is made of a porous material, and has a coating of a rubber material to tighten the needle.
[00107] The suturing head 5, without the needle cartridge 6, is shown in detail in Figures 25 and 26. The suturing head 5 comprises a spring plate 7, which is shown in detail in Figures 19 and 20 The spring plate 7 is produced from laser-engraved steel, 0.1mm thick. Spring plate 7 comprises a plurality of cutouts to form rod springs 65. Spring plate 7 is positioned on suturing head 5 so that each gear tooth rod with a spherical base 41 passes through, and is retained by a rod spring 65. The spherical base 41 of each gear tooth rod is seated in a drilled rod hole in the suturing portion 4, which allows the rod to pivot with respect to the rod axis. This action allows the drive cylinders and outer cylinders, placed triangularly or on opposite sides, mounted on their corresponding gear tooth shaft, with a spherical base 41, to move perpendicular to needle 16, and allow the passage of the section. taper and non-tapered needle between outer and drive cylinders, placed triangularly or on opposite sides, while rod spring 66 allows mechanical tension which acts to increase the grip on the needle by outer and drive cylinders placed triangularly or on opposite sides. opposite sides.
[00108] The drive cylinders 44, 45, 46, 47 are arranged so that the diametrically inner surface of the curved suturing needle 16, which is found in the open slot 56 of the needle cartridge 6, engages with the traction band 53 at the center of the drive surfaces 51 and 52 of the drive cylinder.
[00109] The outer cylinders 35, 36, 37, 38, 39, 40 are arranged so that the diametrically outer surface of the curved suturing needle 16, which is in the open slot 56 of the needle cartridge 6, engages with the band drive surface 53 at the center of outer cylinder drive surfaces 51 and 52. In particular, the outer cylinders 37 and 39 are arranged on opposite sides of the drive cylinder 46, in a triangular arrangement. Outer cylinders 38 and 40 are disposed on opposite sides of drive cylinder 47, in a triangular arrangement. The outer cylinder 35 is disposed opposite the drive cylinder 44, and the outer cylinder 36 is disposed opposite the drive cylinder 45.
[00110] The needle cartridge 6 is shown in detail in Figures 21 to 24. The needle cartridge 6 retains a curved suturing needle 16 with a thread (not shown) that extends from the non-tapered end of the needle, at an open slot 56. The thread is guided outside the cartridge body, during use, by the thread guide 55 at the needle entry into the open slot 56 of the needle cartridge 6, and retained outside the cartridge body by the bevelled side 57 of the open slot 56. The needle cartridge is inserted into and removed from the suturing head 3 by depressing pawl tabs 59 and 60. Open slot 56 in cross section consists of a larger arch that retains the needle 16 inside the body of the needle cartridge 6, while allowing the thread to extend to the outside of the needle cartridge.
[00111] The indentations 61, 62, 63 and 64, on the underside of the needle cartridge 6, allow the drive cylinders 44, 45, 46 and 47 and outer cylinders 35, 36, 37, 38, 39 and 40 project towards the needle cartridge 6 to allow actuation for the needle 16.
[00112] In use, suturing portion 4 is rotated over swivel section 5 to the desired position for use. The user presses the secondary button 9 on the control assembly to activate the LED light, which originates on cable 2 and travels through a series of light openings 18 to illuminate the operating area.
[00113] After positioning the swivel section 5, the control assembly is controlled by a user, through the control switch 8, and the control assembly, in turn, operates the device through the drive interface 15. A drive interface 15 engages with drive coupling 21 which is secured to drive rod 22, which ends in a spur gear 20, which causes crown gear 50, and then large gear tooth 48 , move. Large gear tooth 48 engages with reduction gear teeth 33 and 34, each mounted on a fixed rod 42. Reduction gear teeth 33 and 34 additionally engage with drive gear teeth 23 and 24, mounted on a gear tooth rod with a spherical base 41. Each of these rods is also mounted with drive cylinders 44 and 45 respectively. Drive gear teeth 23 and 24 additionally engage with drive gear teeth 25 and 26, respectively, each mounted on a fixed rod 42. Drive gear teeth 23 and 24 also additionally engage with drive gear teeth 27 and 28, respectively, mounted on a gear tooth rod with a spherical base 41. Each of these rods is also mounted with outer cylinders 35 and 36 respectively. Drive gear teeth 25 and 26 additionally engage with drive gear teeth 29 and 30, respectively, each mounted on a fixed rod 42. Each of these rods is also mounted with drive cylinders 46 and 47 respectively. Drive gear teeth 29 and 30 also additionally engage with drive gear teeth 31 and 32, respectively, mounted on a gear tooth rod with a spherical base 41. Each of these rods is also mounted with outer cylinders 37 and 38 respectively. Then, rotation of the drive cylinders 44, 45, 46 and 47 and the outer cylinders 35, 36, 37 and 38 causes the suturing needle 16 to rotate around a circular path, which incorporates the open slot 56 of the cartridge. needle 6 through friction provided by traction band 53 of drive cylinders and outer cylinders and, under tension, provided by rod springs 65 of spring plate 7, with additional swivel stability provided by outer cylinders 39 and 40, also under tension, from the rod springs 65 of the spring plate 7.
[00114] The suturing needle 16 is retained at all times in alignment on the circular path, despite its position on the circular path, since, in all positions, it will be maintained by the curvilinear drive surfaces 51 and 52, of at least two outer cylinders, in the correct position, within the traction band 53 of the corresponding drive cylinders. The portions of the drive surfaces 51 and 52 of the drive cylinders and outer cylinders, above and below the traction band 53 of the curvilinear surface that engages with the diametrically inner surface of the curved needle, then act to prevent the suturing needle 16 rotate about its center and then move out of alignment with the circular path. The triangular arrangement of drive cylinders 46 and outer cylinders 37 and 39, in particular, acts to hold the sewing needle 16 in alignment even when it is almost completely outside the semicircular portion of the sewing portion 4 and the sewing cartridge. needle 6.
[00115] The suturing needle 16 must be moved, however, out of alignment when any portion thereof is outside the semicircular portion of the suturing portion 4 and the needle cartridge 6, for example, due to the fact that the needle The suture is passing through the particularly dense or hardened tissue, entering the suturing portion 4 and the needle cartridge 6, the tip of the suturing needle 16 being guided by the cone-shaped indentation 58 at the first end of the needle cartridge. needle 6, back to correct alignment.
[00116] In use, the suturing needle 16 should certainly be used for suturing, with the use of suturing thread. During suturing, the suture thread can be passed through the open slot 24 to rotate out of the restrictions of the semicircular portion of the needle cartridge 6, thus allowing the device to be used for suturing, without the device being attached to the tissue that is sutured.
[00117] The control assembly can be controlled by a user via control switch 8 and secondary button 9, as follows. The user can push the control switch 8 forward (toward the suturing head 3) to move the suturing needle 16 counterclockwise, and backward (away from the suturing head 3) to move the needle of suturing 16 clockwise. When moving control switch 8, a greater distance causes suturing needle 16 to move at a greater speed. Pressing control switch 8 downwards, towards handle 2 (i.e. “clicking” it), causes suturing needle 16 to move in the direction previously engaged by control switch 8, in one full rotation around the circular path, so that the needle 16 rests entirely within the body of the needle cartridge 6, then completing a suture and, upon termination of use of the suture, within the body of the needle cartridge 6, allows the needle cartridge 6 is removed, from the suturing head 3, and safely discarded. Secondary button 9 is used to turn LED light on and off 7. However, the person skilled will note that any other suitable control system can be used.
[00118] A suturing device, in accordance with another embodiment of the invention, is now described with reference to Figures 34 to 69.
[00119] As shown in Figures 34 to 39, the sewing device 101 comprises a cable 102 and a replaceable sewing head 103. The sewing device 101, with the sewing head 103 removed, is shown in Figure 35.
[00120] Cable 102 is shown in more detail in Figures 64 and 65. Cable 102 contains a control assembly comprising a drive motor 131, a control switch 104, a power cell or cells 162 and button power supply 160. Power cells 162 can be recharged through a power charging socket 164. The control assembly controls a drive coupling plug 132 which engages with a drive socket coupling 133 of the suture head 103 , as described later below.
[00121] The suturing head 103 comprises a head body 113, a stem 114 and a replaceable needle cartridge 15. The suturing head 103 with the needle cartridge 105 removed is shown in Figure 37.
[00122] As shown, for example, in Figure 35, the trunk 114 of the suture head 103 includes a head plug 106 that engages with a corresponding head trunk socket 161 of the cable 102 to hold the suture head 103 mounted on. the cable 102.
[00123] The suture head 103 is shown in detail in Figures 40 to 44. The needle cartridge 105 attaches to the suture head body 113. The suture head body 113 and the needle cartridge 105 are shaped like so as to cover part of a circle. Needle cartridge 105, which retains a suturing needle 110, is described in more detail below. As shown in Figures 46 to 57, an open slot 115 along the center of the needle cartridge 105 results in an opening also at the end of the needle cartridge 105. The opening at the inlet end of the cartridge has a cone-shaped indentation 118 .
[00124] The internal components of the suture head 103 are shown in Figure 45. As mentioned above, the trunk 114 contains a drive socket coupling 133, which is actuated by the corresponding drive coupling plug 132 of the cable 102. The plug Drive coupling 132 is secured to a drive shaft 134. The drive shaft 134 terminates in the main drive gear tooth 135.
[00125] Figures 57 to 59 show the arrangement of the rods and gear teeth of the suture head 103. The main drive gear tooth 135 engages with the intermediate drive gear teeth 144 and 145, each of which is mounted on a respective fixed rod 130. Intermediate gear teeth 144 and 145 further engage with internal drive gear teeth 136 and 137, each of which is mounted on a respective gear tooth rod 124. Internal drive gears 136 and 137 additionally engage with intermediate gear teeth 146 and 147, each of which is mounted on a respective fixed rod 130. Internal drive gear teeth 136 and 137 additionally engage with external gear teeth of drive 138 and 139, each of which is mounted on a respective gear tooth shaft 124. Intermediate gear teeth 146 and 147 engage the additionally with drive internal gear teeth 140 and 141, each of which is mounted on a respective gear tooth shank 124. Drive internal gear teeth 140 and 141 additionally engage with drive external gear teeth 142 and 143, each of which is respectively mounted on a gear tooth shaft 124 with a spherical base 125 as shown in Figures 19 and 20.
[00126] Gear tooth rods 124, on which the drive inner gear teeth 136, 137, 140 and 141 and drive outer gear teeth 138, 139, 142 and 143 are mounted, are shown in detail in Figures 52 and 53. As can be seen, the gear tooth rods 124 have a spherical base 125. The gear tooth rods also have mounted on them external or inner drive cylinders, which can be seen in the Figures. 52 and 53, but for clarity are not shown in Figure 57. Inner drive cylinders 152, 153, 154 and 155 and outer drive cylinders 148, 149, 150 and 151 are of the same V-shaped groove. design 127 scaled proportionally to match the difference in diameter between the inner and outer diameter of the needle.
[00127] The suturing head 103 further comprises stabilizing cylinders 156 and 157, each mounted on a respective rod with protrusion 126. The protrusion rods 126 are shown in detail in Figures 54 and 55. The arrangement of the rods with protrusion cam 126, which are positioned close to outer drive cylinders 142 and 143, is shown in Figure 57 (stabilizing cylinders are not shown, for clarity). Stabilizing cylinders 152 and 153 are of a circular groove design 129, and make contact with the outside of the needle so as to act to keep the needle on the circular path.
[00128] As shown in particular in Figure 60 to 63, the suturing head 103 comprises a spring plate 109. Alternative embodiments of the spring plate are shown in Figures 66 to 69. The spring plate 109 comprises a blade of resilient material, e.g., plastic or suitable metal, wherein a plurality of voids form drive rod spring elements 158 and lug rod alignment openings 159. Spring plate 109 is positioned in the head body of suturing 113 so that each gear tooth shaft 124, with ball base 125, passes through and is retained by a spring rod element 158. The ball base 125 of each gear tooth rod is seated on a drilled hole of the rod, in the suturing head body 113, which allows the rod to move from the vertical position. This action allows the inner drive cylinder 120 and outer drive cylinder 121, placed on opposite sides, mounted on their corresponding gear tooth shaft 124 with ball base 125, to move perpendicularly to the needle 116 to allow the passage of the tapered and non-tapered section of the needle between the inner drive cylinder 120 and the outer drive cylinder 121, placed on opposite sides, while the drive rod spring element 158 provides mechanical tension which acts to increase the grip on the needle, by the outer drive and inner drive cylinders, placed on opposite sides. The movement from the vertical of the inner drive cylinder 120 and the corresponding inner drive gear tooth 122 and the corresponding outer drive cylinder 121 and the corresponding outer drive gear tooth 123, mounted to their respective gear tooth shanks 124, through its respective actuating rod spring element 158, is limited by the travel distance of the actuating rod spring element 158, under tension, as shown in Figures 62 and 63.
[00129] The internal drive cylinders 152, 153, 154 and 155 are arranged so that the diametrically inner surface of the curved suturing needle 10, which is found in the open slot 115 of the needle cartridge 105, engages with the shaped slot. of V 127, in the center of the drive cylinder. The outer drive cylinders 148, 149, 150 and 151 are arranged so that the diametrically outer surface of the curved suturing needle 110, which is in the open slot 115 of the needle cartridge 105, engages with the V-shaped slot 127 , in the center of the outer drive cylinder. In particular, outer drive cylinder 150 and stabilizer cylinder 156 are disposed on opposite sides of inner drive cylinder 154, in a triangular arrangement. Similarly, outer drive cylinder 151 and stabilizer cylinder 157 are disposed on opposite sides of inner drive cylinder 150, in a triangular arrangement. The outer drive cylinder 148 is disposed opposite the inner drive cylinder 152, and the outer drive cylinder 149 is disposed opposite the inner drive cylinder 153.
[00130] In an alternative embodiment, the drive cylinders have a groove that contains teeth that grip the needle. In another alternative embodiment, the drive cylinders are made of a porous material and are coated with a rubber material to tighten the needle.
[00131] Needle cartridge 105 is shown in detail in Figures 46 to 51. Needle cartridge 105 retains a curved suturing needle 110 with a thread (not shown) that extends from the non-tapered end of the needle, at an open slot 115. The thread is guided out of the cartridge body, during use by the filleted side of the open slot 116, into the needle entry into the open slot 115 of the needle cartridge 105, and also retained outside the cartridge body. by the fillet beveled side of the open slot 116 of the open slot 115. The needle cartridge is secured to and removed from the suturing head 103 by depressing an ejection button 107 and rotating the needle cartridge 105 on the tabs. detent 117, until the needle has exited the V-shaped slots in the drive cylinders as shown in Figure 36. The detent tabs can also be incorporated as part of the spring plate 109 (not shown). The open slot 115 in the needle cartridge 105 in cross section consists of a larger arc which retains the needle 110 within the body of the needle cartridge 105, while allowing the thread to remain extended to the outside of the needle cartridge.
[00132] The indentations 119 on the underside of the needle cartridge 105 allow the internal drive cylinders 152, 153, 154 and 155, the external drive cylinders 148, 149, 150 and 151, and the stabilization cylinders 156 and 157 project to needle cartridge 105 to allow them to go to needle 110.
[00133] In use, the device is controlled by a user, through the control switch 104, which, in turn, through the integrated circuit board 163, operates the motor 131 with the drive coupling plug 132 attached, energized by the power cells 162. The drive coupling plug 132 engages with the drive socket coupling 133, which is secured to the drive rod 134, which terminates in the main drive gear tooth 135, causing the gear tooth. drive main 135, and consequently the other gear teeth in the suturing head 103, move. This results in the rotation of the inner drive cylinders 152, 153, 154 and 155 and the outer drive cylinders 148, 149, 150 and 151, which cause the suturing needle 110 to rotate around a circular path that incorporates the groove. open 115 of the needle cartridge 15 through friction provided by the V-shaped grooves 127 of the inner drive cylinders and the outer drive cylinders and under the tension provided by the drive rod spring elements 158 of the spring plate 109 , with additional swivel stability provided by stabilizing cylinders 156 and 157, held in alignment by the shouldered rod alignment opening 159 of spring plate 109.
[00134] The suturing needle 110 is retained at all times in alignment on the circular path, despite its position on the circular path, since, in all positions, it will be retained by the actuating surfaces of the slot in the shape of a V 127 of at least one outer drive cylinder and the circular groove 129 of at least one of the stabilizing cylinders in the correct position, within the V-shaped groove of the corresponding inner drive cylinders.
[00135] The chamfered edges of cylinder 128 of the internal drive cylinders and external drive cylinders, above the V-shaped grooves 127, and the chamfered edges of cylinder 128 of the stabilization cylinders, above the circular grooves 129, allow the facilitated passage of the needle 110 in and out of the V-shaped slots 127 and the circular slots 129 of the stabilizing and actuating cylinders, during insertion or removal of the needle cartridge 105.
[00136] The triangular arrangement of the inner drive cylinder 154, the outer cylinder 150 and the stabilizer cylinder 156, in particular, act to retain the suturing needle 110 in alignment and act to prevent the suturing needle 110 from rotating about its center and then moves out of alignment with a circular path, even when the needle is almost completely outside the semicircular portion of the head body 113 and the needle cartridge 105.
[00137] The suturing needle 110, however, must be moved out of alignment when any portion of it is outside the semicircular portion of the head body 113 and the needle cartridge 105, for example, due to the fact that the sewing needle is passing through the particularly dense or stiffened tissue when it enters the head body 113 and the needle cartridge 105, the tip of the sewing needle 110 being guided by the cone-shaped indentation 118 at the first end of the 105 needle cartridge back to correct alignment.
[00138] In use, the 110 suturing needle should certainly be used to suture using the suture thread. During suturing, the suture may be passed through the open slot 115 to pivot out of the restrictions of the semicircular portion of the needle cartridge 105, then allowing the device to be used for suturing, without the device being attached to the tissue that is sutured.
[00139] The control assembly can be controlled by the user via control switch 104 and power button 160 as follows. The user presses control key 104 down towards handle 102 (i.e. "clicks" it) to rotate counterclockwise and partially exit needle 110 from open slot 115 of needle cartridge 105. User then inserts the partially exposed needle into the first section of tissue to be sutured. The use then depresses control switch 104 again, which causes suturing needle 110 to rotate counterclockwise in a full rotation around the circular path, so that needle 110 will fully return and seat. inside the body of the 105 needle cartridge, then finish a suture. Additionally, as, upon completion of suturing, the needle 110 is entirely within the body of the needle cartridge 105, the needle cartridge 106 can be removed from the suturing head 103 and replaced and safely discarded.
[00140] However, although a particularly convenient system for operating the suturing device has been described, the person skilled will note that any other suitable system can be used.
[00141] Although the present invention has been described and illustrated with reference to particular embodiments, it will be appreciated by those skilled in the art that the invention lends itself to many different variations not specifically illustrated herein.

权利要求:
Claims (15)
[0001]
1. Replaceable sewing head (3) for a sewing device (1) comprising a control assembly, the sewing head (3) comprising a sewing portion (4); wherein the sewing portion (4) comprises a curved sewing needle (16) arranged to move around a circular path defined by a plurality of cylinders (36, 37, 38, 39, 40, 44, 45, 46 , 47) mounted on cylinder rods (41, 42) within the suturing portion (4), at least one of the plurality of cylinders (36, 37, 38, 39, 40, 44, 45, 46, 47) is a drive cylinder (44, 45, 46, 47) adapted to be driven by a drive motor (10) to move the suturing needle (16) around the circular path; and wherein one or more of the cylinder rods (41, 42) are mounted within the suturing portion (4) so that the cylinder rod (41) can pivot around its base; characterized in that the sewing portion (4) further comprises a spring plate (7) mounted parallel to the circular trajectory of the sewing needle (16) to tilt the one or more cylinder rods (41) so that its cylinder (44, 45, 46, 47) is inclined towards the suturing needle (16).
[0002]
2. Suture head according to claim 1, characterized in that the base of the one or more cylinder rods (41) has a spherical end.
[0003]
3. Suture head, according to claim 1 or 2, characterized in that the spring plate (7) comprises a plurality of empty spaces and in which the cylinder rods (41) extend through the holes formed by the empty spaces.
[0004]
4. Suture head according to claim 3, characterized in that the voids in the spring plate (7) form rod springs (65) in the spring plate (7) that press against the cylinder rods ( 41).
[0005]
5. Suturing head according to any one of the preceding claims, characterized in that the suturing portion (4) of the replaceable suturing head (3) comprises a body portion and a replaceable needle cartridge (6) that contains the suturing needle (16).
[0006]
6. Suture head according to claim 5, characterized in that the plurality of cylinders (36, 37, 38, 39, 40, 44, 45, 46, 47) is mounted on the body portion, and the replaceable needle cartridge (6) comprises indentations into which the cylinders (44, 45, 46, 47) extend to allow the cylinders (36, 37, 38, 39, 40, 44, 45, 46, 47) come into contact with the suturing needle (16).
[0007]
7. Suture head according to any one of the preceding claims, characterized in that the rotating surface (53) of at least one of the plurality of cylinders (44, 45, 46, 47) is arranged to provide a surface drive gear (53).
[0008]
8. Suturing head according to any one of the preceding claims, characterized in that at least one of the plurality of cylinders (44, 45, 46, 47) comprises a plurality of slotted recesses (52) extending to inside from its rotating surface (53).
[0009]
9. Suture head according to any one of the preceding claims, characterized in that the plurality of cylinders (36, 37, 38, 39, 40, 44, 45, 46, 47) comprises a first cylinder (46, 47) arranged on a first side of the circular raceway, and corresponding second and third cylinders (37, 39; 38, 40) disposed on the opposite side of the circular raceway from the first drive cylinder (46, 47), and wherein the first, second and third cylinders (46, 37, 38; 47, 39, 40) act to retain the suturing needle (16) in the circular path.
[0010]
10. Sewing head according to any one of the preceding claims, characterized in that the body portion of the sewing portion (4) comprises a cone-shaped notch (58) located on the circular track to guide an entrance at the end of the suturing needle (16) for alignment with the circular path.
[0011]
11. Suturing head, according to any one of the preceding claims, characterized in that it comprises a light (7) to illuminate the suturing needle (16) when it leaves the body portion.
[0012]
12. Suturing head, according to any one of the preceding claims, characterized in that the body portion of the suturing portion (4) is open on a first side of the circular path.
[0013]
13. Suturing device, characterized in that it comprises: a control assembly comprising a drive motor (10) and a control apparatus for controlling the drive motor (10); and a replaceable suture head (3) as defined in any one of claims 1 to 12.
[0014]
14. The sewing device of claim 13, characterized in that the sewing portion (4) of the replaceable sewing head (3) comprises a body portion and a replaceable needle cartridge (6) containing the sewing needle (16), the control assembly being arranged, in response to input from a user, to position the sewing needle completely within the replaceable needle cartridge (6) of the sewing portion (4) to removing the replaceable cartridge from the replaceable suture head (3).
[0015]
15. The sewing device of claim 13 or 14, characterized in that the control assembly is arranged, in response to an input from a user, to rotate the sewing needle (16) once around the circular trajectory.

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同族专利:

公开号 | 公开日

BR112014027969A2|2017-06-27|

ES2636812T3|2017-10-09|

CA2872967A1|2013-11-14|

HK1208334A1|2016-03-04|

EP2846704B1|2017-06-21|

RU2014149277A|2016-06-27|

CA2872967C|2020-08-25|

RU2632541C2|2017-10-05|

WO2013167885A1|2013-11-14|

AU2013257850B2|2017-07-06|

US9724087B2|2017-08-08|

US20150127024A1|2015-05-07|

EP2846704A1|2015-03-18|

GB201208024D0|2012-06-20|

AU2013257850A1|2015-01-22|

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法律状态:
2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

2019-12-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

2021-05-18| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

2021-07-06| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/05/2013, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

GB201208024A|GB201208024D0|2012-05-08|2012-05-08|Suturing device|

GB1208024.8|2012-05-08|

PCT/GB2013/051185|WO2013167885A1|2012-05-08|2013-05-08|A replaceable suturing head, a replaceable needle cartridge, and a suturing device|

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