• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    spinal stem that has an adjustable dimension in the postoperative period. the present invention relates to a spinal implant (200) which includes the first spinal fixation member (201) for fixation to a first spinal part, the second spinal fixation member (202) for fixation to a second spinal part , and a post-implantation variable-length nail arranged between the first and second spinal fixation members, which can be operated after the end of the surgery, in which the said spinal implant was installed in a patient, to cause the relative movement between the first and second spinal fixation members.
    公开号:BR112012012541B1
    申请号:R112012012541-9
    申请日:2010-11-05
    公开日:2020-03-24
    发明作者:Uri Arnin
    申请人:Spine21 Ltd.；
    IPC主号:
    专利说明:

    Descriptive Report of the Invention Patent for SPINAL IMPLANT.
    Field of the Invention [0001] The present invention relates, in general, to spinal implants and prostheses and, in particular, to a spinal fusion compartment that has adjustable dimensions in the postoperative period.
    Background of the Invention [0002] Spinal implants with the ability to adjust height are known. A device is shown and described in the PCT patent application PCT / IL2008 / 001423 (WO 2009/060427) for the present Applicant. One of the devices shown therein uses a screwed and tilted interface between the first and second support plates, as is now described with reference to figure 1.
    [0003] A spinal implant 20 includes a post-implantation variable size device 22, and is connected to pedicle screws 24 (spinal fixation members 24). The actuation of the variable-dimension device 22 alters the distance between the screws 24. The post-implantation variable-dimension device 22 includes a column arranged for linear movement, as by means of a miniature linear actuator, which is controlled remotely .
    Summary of the Invention [0004] The present invention seeks to provide an improved spinal stem (or implant or prosthesis, the terms being used interchangeably) that has adjustable dimensions in the postoperative period, to be positioned between two adjacent vertebrae, with the ability to adjust the distance between the vertebrae.
    [0005] In one modality, at least one of its dimensions of the spinal implant can be modified post-implantation by means of remote control.
    [0006] The adjustment of the length of the spinal stem can be
    Petition 870190104259, of 10/16/2019, p. 5/21
    2/8 electrically powered, such as via an electric motor (powered by a battery or remote induction) and controlled via remote control.
    [0007] The prosthesis is configured to bridge the two vertebrae, with the utmost preference, but not limited to the adjacent vertebrae. The prosthesis includes a plurality of fixation members (final features) configured to be fixed to a plurality of bone fixation points, for example, but not limited to, vertebral end plates.
    [0008] Thus, according to a non-limiting embodiment of the present invention, there is presented a spinal implant that includes the first spinal fixation member for fixation to a first spinal part, the second spinal fixation member for fixation to a second spinal part, and a post-implantation rod of variable size arranged between the first and second spinal fixation members, which can be operated after the end of the surgery, in which the spinal implant was installed in a patient, to cause the relative movement between the first and second spinal fixation members.
    [0009] According to an embodiment of the present invention, the first and second spinal fixation members include pedicle screws.
    [00010] In accordance with an embodiment of the present invention, the post-implantation variable size device alters a distance between the first and second spinal fixation members.
    [00011] According to a modality of the present invention, the post-implantation variable dimension device is connected to the mechanical elements connected to the rods fixed to the pedicle screws.
    [00012] According to an embodiment of the present invention, the
    Petition 870190104259, of 10/16/2019, p. 6/21
    3/8 operating column fitted to the stem includes a rotating element that has at least one internal screw and at least one stem engaged with that screw. The rotating element and the rod are disposed between the fastening members, such that when the rotating element is rotated the rod moves inward or outward, thus changing the distance of the first fastening member from the second fastening member. [00013] According to an embodiment of the present invention, the rotating element has two screws in two different directions, left and right, and two threaded axes are engaged with these screws.
    [00014] According to an embodiment of the present invention, the post-implantation variable-length rod is operated in a hydraulic or pneumatic manner.
    [00015] According to an embodiment of the present invention, the post-implantation variable-size device is operated electrically.
    [00016] According to an embodiment of the present invention, the post-implantation variable dimension device includes an internal, implanted part. The interior may include at least one of a piston, a pump, a microprocessor, an RF emitter / transmitter, an LVDT (linear variable differential transducer), a voltage sensor, an electrical coil, a battery and a capacitor.
    [00017] In accordance with an embodiment of the present invention, the post-implantable variable-length rod includes an external control part. The external control part can include at least one of a control panel, a processor, an RF transmitter / emitter, a magnetic power supply, an electrical coil and a cellular communication device. Communication between the external control part and the implanted part can be controlled by a code or a password to protect against unwanted operation of the
    Petition 870190104259, of 10/16/2019, p. 7/21
    4/8 internal device.
    Brief Description of the Drawings [00018] The present invention will be understood and observed more fully from the detailed description below, considered together with the drawings in which:
    Figure 1 is a simplified pictorial illustration of a spinal implant that includes a post-implantation variable dimension device, connected to the pedicle screws so that the variable dimension mechanism can change the distance between the screws;
    figure 2 is a simplified semitransversal pictorial illustration of a spinal implant that includes a post-implantation variable size nail, constructed and operational according to one embodiment of the invention;
    Figure 3 is a simplified pictorial illustration of an arrangement of pedicle nails and screws, which includes a post-implantation variable size nail, constructed and operational in accordance with an embodiment of the invention;
    Figure 4 is a simplified pictorial illustration of an arrangement of pedicle nails and screws, which includes a post-implantation variable size nail, constructed and operational according to another embodiment of the invention;
    Figure 5 is a simplified pictorial illustration of an arrangement of pedicle nails and screws, which includes a post-implantation variable size nail, constructed and operational in accordance with yet another embodiment of the invention;
    Figure 6 is a simplified pictorial illustration of an arrangement of pedicle nails and screws, which includes a post-implantation variable size nail, constructed and operational in accordance with yet another embodiment of the invention.
    Petition 870190104259, of 10/16/2019, p. 8/21
    5/8
    Detailed Description of the Modalities [00019] Reference is now made to figure 2, which illustrates a spinal implant 200, constructed and operational according to a non-limiting modality of the invention.
    [00020] The spinal implant 200 includes a first nail 201 (for example, upper) and a second nail 202 (for example, lower) both received screwed into a sleeve 203 mounted in a compartment 209. The threaded connection between the sleeve 203 and the first rod 201 is opposite towards the threaded connection between the sleeve 203 and the second rod 202; one is right-handed, the other left-handed. In this way, turning sleeve 203 in one direction (for example, clockwise) causes the rods to move away, while moving the sleeve 203 in the opposite direction causes the rods to move towards each other when the rods are connected to the different spinal structure. (The term spinal structure encompasses not only the anatomical parts of the spine, but also the spinal assembly structure, as, but not limited to, the cross-connector rods or pedicle screws and the like). Sleeve 203 can be seated on the bearings in housing 209.
    [00021] Both the first and second rods 201 and 202 each have a mounting frame 215 (e.g. mounting holes or inserts) at the distal ends thereof to attach to the spinal frame.
    [00022] A gear 204 is connected to, or can be part of, the outer contour of sleeve 203. A gear train 205 is arranged between gear 204 and an actuation motor 206. According to an embodiment of the present invention, the system 204-205 can be a sprocket, worm gear, belt, chain or other known mechanisms for transmitting movement. The 206 actuation motor rotates
    Petition 870190104259, of 10/16/2019, p. 9/21
    6/8 sleeve 203 through a pre-developed gear ratio and the rods 201 and 202 move relative to each other.
    [00023] Motor 206 may be controlled by a printed circuit 208, which may include, but is not limited to, at least one of a microcontroller, a radio system, a remote switch, a capacitor and an induction coil. The power source for starting the engine can be a 207 battery.
    [00024] The electrical components can be controlled by an external unit through a remote control (radio, light, voice, etc.).
    [00025] Alternatively, as shown in the embodiment of figure 6, the second rod 202 does not need to be moved by the actuation motor. In contrast, the second rod 202 may be attached, or part of it, to the compartment 209. The actuation motor moves the first rod 201 towards or away from the second rod 202.
    [00026] Instead of being actuated electrically, the actuation motor 206 can be hydraulic or pneumatic, and this option is illustrated in figure 6. The actuation motor 206 includes a fluid operated piston (hydraulic or pneumatic) 220 operated by a fluid pump (hydraulic or pneumatic) 222, connected to it by a tube 224. [00027] Figure 6 also shows the option that at least one of the rods 201 or 202 can be connected directly to a bone screw (for example, pedicle) 225 inserted in the mounting structure 215.
    [00028] Reference is now made to figure 3, which illustrates an option of connecting the adjustable rods in the post-operational 201 and 202, as described in figure 2 to the spinal structure.
    [00029] In this illustrated embodiment, the spinal structure includes a first vertebral body 301 and three other vertebral bodies below body 301, identified 301A, 301B and 301C. The two pedicle screws 302 are inserted into each vertebral body. An
    Petition 870190104259, of 10/16/2019, p. 10/21
    7/8 intervertebral nail 303 connects the pedicle screws of the adjacent vertebral bodies 301 and 301A, as well as 301B and 301C. Thus, there are four rods shown. Different types of bone screws, inserted at different locations in the vertebra, can be used.
    [00030] The first rod 201 of the spinal implant 200 is connected to a first fixing member 304 and a second fixing member 305 is attached to the second rod 202 through the fixing joints 307 positioned on the mounting structures 215. The fixing joints 307 between the rods and the fixing members may include, without limitation, a swivel hinge, a ball joint, a fixed rigid fixation or any other way known to those skilled in the art. The first and second fixation members 304 and 305 are connected to the intervertebral rods 303 between the adjacent vertebral bodies.
    [00031] Reference is now made to figure 4, which illustrates yet another option for connecting the adjustable rods in the post-operational to the spinal structure. In this embodiment, the first and second nails 201 and 202 of the spinal implant 200 are connected to the first and second ends of the adjacent intervertebral nails 303 through the fixation joints 307.
    [00032] Reference is now made to figure 5, which illustrates yet another option of connecting the adjustable post-operational rods to the spinal structure. In this embodiment, the first and second rods 201 and 202 of the spinal implant 200 are connected to the first and second rods of transverse connector 503 with connecting members 504 through fixation joints 307. The rods of transversal connector 503 are connected to the intervertebral rods right and left 303 through the fixing joints 307.
    [00033] It is observed that in figures 3 to 6, only one spinal implant of variable dimension in the post-operational 200 is shown. However, more than one implant can be used in the same segment (for
    Petition 870190104259, of 10/16/2019, p. 11/21
    8/8 example, L4 and L5) or above or below the segments.
    [00034] The modalities of figures 3 to 6 can be interchanged and / or integrated with each other in different combinations.
    权利要求:
    Claims (13)
    [1]
    1. Spinal implant (200) comprising:
    a first rod (201) and a second rod (202), both received in a threaded manner in a sleeve (203) mounted in a housing (209), in which a threaded connection between said sleeve (203) and said first stem (201) is opposite towards a threaded connection between said sleeve (203) and said second rod (202), wherein said first (201) and second (202) rods each have an assembly structure (215) at distal ends thereof for attachment to a spinal structure; and an actuation motor (206), arranged in said compartment (209) and non-concentric with said sleeve (203), operational to rotate said sleeve (203) through a gear system (204, 205), characterized by the fact that rotating said sleeve (203) in one direction causes said first (201) and second (202) rods to move apart, while rotating said sleeve (203) in an opposite direction causes said first (201) and second (202) rods move towards each other, where the threaded connection between said sleeve (203) and said first rod (201) and the threaded connection between said sleeve (203) and said second rod (202) are both formed in a common hole in said sleeve (203), and in which said sleeve (203) is structured to allow said first (201) and second (202) rods to abut a counter the other.
    [2]
    2. Spinal implant (200), according to claim 1, characterized by the fact that said actuation motor (206) is controlled by a printed circuit (208), which comprises at least one of a microcontroller, a system of radio, a remote switch, a capacitor and an induction coil.
    [3]
    3. Spinal implant (200), according to claim 1, characterized by the fact that said first nail (201) is connected
    Petition 870190104259, of 10/16/2019, p. 13/21
    2/3 to a first fixing member (304) through a fixing joint (307) positioned on said mounting structure (215).
    [4]
    4. Spinal implant (200), according to claim 3, characterized by the fact that said second nail (202) is connected to a second fixation member (305) through a fixation joint (307) positioned in said mounting structure (215) at the distal end of the second stem (202).
    [5]
    5. Spinal implant (200), according to claim 4, characterized by the fact that said first and second fixation members (304, 305) are connected to the intervertebral rods (303) adapted for fixation between the vertebral bodies.
    [6]
    6. Spinal implant (200), according to claim 4, characterized by the fact that said first stem (201) and said second stem (202) are connected to the first and second ends of intervertebral stems (303) through fixing joints (307) positioned on said mounting structures (215).
    [7]
    7. Spinal implant (200), according to claim 4, characterized by the fact that said first rod (201) and said second rod (202) are connected to the first and second transverse connector rods (503) with the connecting members (504) through the fixing joints (307) positioned on said mounting structures (215).
    [8]
    8. Spinal implant (200), according to claim 7, characterized by the fact that said transverse connector rods (503) are connected to the left and right intervertebral rods (303) through fixation joints (307).
    [9]
    9. Spinal implant (200), according to claim 1, characterized by the fact that at least one of said first and second nails (201, 202) is connected directly to a bone screw (225) inserted in said mounting structure (215).
    Petition 870190104259, of 10/16/2019, p. 14/21
    3/3
    [10]
    10. Spinal implant (200), according to claim 1, characterized by the fact that said sleeve (203) is seated on bearings in said compartment (209).
    [11]
    11. Spinal implant (200) according to claim 1, characterized in that said gear system (204, 205) comprises a gear connected to, or forming part of, an external contour of said sleeve (203 ).
    [12]
    12. Spinal implant (200), according to claim 1, characterized by the fact that said common hole has a constant cross section.
    [13]
    13. Spinal implant (200) according to claim 1, characterized in that a portion of said gear system (204, 205) is non-concentric with said sleeve (203).
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    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-07-23| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-02-04| B09A| Decision: intention to grant|
    2020-03-24| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/11/2010, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US27296909P| true| 2009-11-25|2009-11-25|
    US61/272,969|2009-11-25|
    PCT/US2010/055533|WO2011066078A1|2009-11-25|2010-11-05|Spinal rod having a post-operative adjustable dimension|
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