• 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:
    catheter; and method for performing a medical procedure within a body lumen described methods and devices for improved catheters including those with a deflectable section to allow for expansion while maintaining flow through a vessel.
    公开号:BR112015007420B1
    申请号:R112015007420-0
    申请日:2013-10-01
    公开日:2021-06-22
    发明作者:Robert C. Laduca
    申请人:Qmax, Llc；
    IPC主号:
    专利说明:

    RELATED ORDER
    [001] This application is a non-provisional application of US Interim Applications 61/734,860 filed December 7, 2012; US Provisional Application 61/724,875 filed November 9, 2012; and US Provisional Application 61/708,524 filed October 1, 2012. The entirety of each is incorporated by reference in this document. HISTORY OF THE INVENTION
    [002] There remains a need for a balloon catheter that can be installed to provide an external radial force against a wall of the body lumen without causing occlusion of the body lumen. This catheter can be constructed to provide costly variable features such as a low or high radial external force, a low or high expansion ratio, as well as providing the ability to navigate through the tortuous anatomy. SUMMARY
    [003] Methods and devices described in this document provide improved catheters including those having a deflectable section to allow for expansion while maintaining flow through a vessel. While the following disclosure discusses devices and methods for use in bodily vessels, these methods and devices can be applied to various parts of the body.
    [004] The present disclosure includes catheters having a proximal part, distal part, and a deflectable section located therebetween, the deflectable section having a deflectable cross-section; where the cross section of the deflectable section comprises an elastic material on a first side and a flexible support material on a second side, an inflation lumen connected by both the elastic material and the flexible support material, and where the cross section of the deflectable section rotates along a length of the deflectable section so that the elastic material, inflation lumen and flexible support material extend helically along the length of the deflectable section; a pull wire extending through the flexible support material at least along the length of the deflectable section and at least to the proximal portion of the catheter, such that the proximal tension applied to the pull cord causes the deflectable section to deflect in a profile helical; and wherein when a pressure within the inflation lumen increases, the elastic material expands away from the inflation lumen.
    [005] In a variation, the helical profile of the flexible support material is located along an inner diameter of the helical profile and the elastic material is located on an outer diameter of the helical profile so that in increasing pressure within the lumen of inflation the elastic material expands radially outward from the helical profile.
    [006] In another variation, the drawstring extends through a lumen of the drawstring and where the drawstring lumen and inflation lumen are located 180 degrees opposite in cross-section of the deflectable section.
    [007] Variations of the devices may include a guidewire lumen extending through the proximal portion and flexible support material of the deflectable section. The devices may optionally further include one or more guidewire lumens that extend through a center of the proximal portion, distal portion, and bypass section.
    [008] In one example, the guidewire lumen extends through the distal portion.
    [009] The devices may optionally further include an inflation lumen that extends through the proximal portion.
    [010] In device variations, a hardness of flexible support material is less than a hardness of the proximal part.
    [011] The devices may include the helical deflectable sections having at least one turn or a plurality of turns where the helical profile has a height and a diameter.
    [012] Devices may include variations where at least two turns of the plurality of turns are continuous along a length of the helical profile. In further variations, at least two turns of the plurality of turns are spaced apart and do not touch along a length of the helical profile.
    [013] In some variations, where the height of the helical profile is consistent for the plurality of turns. Alternatively, the height of the helical profile can vary for the plurality of turns. Furthermore, the diameter of the helical profile may be consistent over a length of the helical profile or may vary.
    [014] The present disclosure further includes methods for performing a medical procedure within a body lumen. In one example such a method includes inserting a catheter into the lumen of the body, the catheter having a proximal part, a distal part, and a deflectable section located therebetween, where a cross-section of the deflectable section comprises an elastic material on a first side and a material of flexible support on a second side, an inflation lumen connected by both the elastic material and the flexible support material, and where the cross-section of the deflectable section rotates along a length of the deflectable section so that the elastic material, lumen of inflation and flexible support material extend helically along the length of the deflectable section; converting the deflectable section from a near linear shape to a helical shape by applying tension to a pull wire extending through the flexible support material at least along the length of the deflectable section and at least in the proximal portion of the catheter, so that tension in the pull wire causes the deflectable section to deflect in a helical fashion; and expanding the elastic material by increasing pressure within the inflation.
    [015] In another example, the method includes expanding the elastic material by expanding the elastic material against a wall of the body lumen to apply a radial force away from the wall of the body lumen while allowing a passage through the helical shape so that the body lumen is not occluded by the catheter.
    [016] In another example, the method may include positioning the deflectable section of the catheter within a second medical device, and where expanding the elastic material causes the second medical device to expand against a wall of the body lumen while allowing passage through the helical shape so that the body lumen is not occluded by the catheter.
    [017] The present disclosure still includes another variation of a catheter having a proximal part, distal part, and a deflectable section located between them; where a cross section of the deflectable section comprises an elastic material on a first side and a flexible support material on a second side, an inflation lumen connected by both the elastic material and the flexible support material, and where the cross section of the deflectable section has two materials with different Young's modulus along a length of the deflectable section so that the elastic material, inflation lumen and flexible support materials change lengths at different rates when inflating the elastic portion of the tubing with the balloon material elastic elongating with respect to the flexible support material of the catheter lumen that deflects the deflectable section into a coiled or helical shape that is; cylindrical or hook-shaped cone;
    [018] Such Young's modulus can be optionally determined by

    [019] Variations of the access device and procedures described in this document include combinations of features from the various embodiments or combination of the embodiments themselves whenever possible. BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
    [020] Figure 1A illustrates a catheter having a deformable section that can assume a helical configuration.
    [021] Figure 1B illustrates a proximal force. Figure 1B illustrates a proximal force applied to a pull wire to make the deflectable section assume a helix or helical profile.
    [022] Figure 1C shows a perspective view of a catheter that is in helical configuration.
    [023] Figures 1D to 1H illustrate an expandable configuration of the deflectable section of the catheter.
    [024] Figures 2A to 2K show how a cross section of the deflectable section rotates along a length of the deflectable section.
    [025] Figures 3A to 3C illustrate additional variations of the helical shapes for use with the variations of the catheters described in this document.
    [026] Figure 4A to 4C show a single-turn catheter.
    [027] Figures 5A to 5C show an example of a catheter with a deformable section being used to install a medical device within a body lumen.
    [028] Figures 6A and 6B show a variation of the device where a guidewire lumen exits on one side of the deflectable section and re-enters the device on a distal section.
    [029] Figures 7A and 7B show another variation of a device having an actuator that allows expansion of the deflectable section as it forms the helical turns.
    [030] Figures 8A to 8D illustrate variations of devices having fluid delivery lumens.
    [031] Figures 9A and 9B show doors on the outside of the bypass section.
    [032] Figure 10 shows a variation of a device expanded into an artery and administering a fluid.
    [033] Figures 11A and 11B show additional variations of the device.
    [034] Figures 12A to 12D show a variation of a device with an additional thread or suture used to assist the deflectable section when forming a coil or helix. DETAILED DESCRIPTION OF THE INVENTION
    [035] The following illustrations demonstrate various embodiments and examples of devices and methods in accordance with the present disclosure. Combinations of aspects of the various devices and methods or combinations of the devices and methods themselves are considered to be within the scope of this disclosure.
    [036] Figure 1A illustrates a variation of a catheter 100 in accordance with the present disclosure. Figure 1A depicts catheter 100 in a generally linear configuration; however, catheter 100 can optionally be configured to be flexible to navigate through tortuous anatomy such as vascularization and/or other organs throughout the body. Figure 1A shows the catheter including a distal portion 102 having an optional lumen that terminates in a distal end 114. Catheter 100 further includes a proximal portion 106 that is used by an operator to manipulate catheter 100. Variations of catheter 100 may include any number of hubs or cables located toward the proximal end of the proximal portion 106. The catheter 100 includes a deflectable section 104 located between the proximal portion 106 and the distal portion 102. As discussed below, the deflectable section 104 may be actuated by a user via a pull cord 108 or other similar means. Variations of device 100 may include a catheter 100 without a distal portion 102 or with a bypass section 104 that extends along a significant length of the catheter 100. The bypass section 104, as described in detail below, includes a cross-section that rotates along a length of the deflectable section 104 and as described by 118. The rotated cross-section comprises at least two different materials that extend helically along a length of the deflectable section 104.
    [037] Figure 1B illustrates a proximal force 116 applied to the pull wire 108 to make the deviated section 104 assume a helix or helical profile 110. The rotated cross-section of the deviated section 104 results in the helical deviation of the deviated section 104 in the applying a tensile force to the drawstring 108 that extends through at least a portion of the deflectable section. The variation illustrated in Figure 1B demonstrates a helical shape 100 having 4 turns 112. However, the devices and methods described in this document can include any number of turns 112 as well as alternate helical configurations as shown below.
    [038] Figure 1C shows a perspective view of a catheter 100 having a deflectable section 104 in a helical profile, as shown the helical profile 110 includes a passage 120 that prevents the catheter 100 from occluding the body lumen when in a helical configuration .
    [039] Figure 1D illustrates another variation of a catheter 100 in the present disclosure. In this variation, the deflectable section 104 of the catheter 100 may expand. Figure 1E illustrates a cross-sectional view along line 1E-1E in figure 1D. Figure 1F illustrates an enlarged view of the left turn 112 of the helical profile. As shown, catheter 100 may include an inflation lumen 150, a guidewire lumen 152, and a pullwire 154 or pullwire lumen 154. A variation of the device includes an inflation lumen 150 that is connected by a expandable material 156 and a flexible material 158. The flexible material allows selective flexing of the deformable section 104 while the expandable material 156 expands under pressurization of the inflation lumen 150. In certain variations, the elastic material 156 is oriented so that the material 156 expands outwardly from the helical shape while maintaining passage 120 so that the flow remains through the organ or lumen of the body.
    [040] The elastic material may comprise a material commonly used in medical elastic balloon. Examples of materials for the backing/elastic material may include pebax or a mixture of pebax and siloxane. The elastic material can be co-extruded with the flexible material. Furthermore, variations of the device may include a proximal portion that comprises a material harder than the flexible material used in the deflectable section.
    [041] Furthermore, in certain variations, the device can automatically wind up without the need for a separate drawstring given a specific selection of materials. For example, in this variation the elastic expandable balloon material is co-extruded or otherwise bonded to a non-elastic catheter material and the two materials will have different stiffness and elongation stress-strain curves. In this variation, in the inflation of the elastic part of the tube, since the length changes only in one wall of the tube, the other wall is constrained by less elastic material. This results in the balloon segment of the catheter automatically forming a helical coiled configuration on expansion. The balloon diameter and the diameter of the inflated helical balloon configuration can be predetermined by selecting the appropriate design parameters, including material selection, hardness, length, and cross-section profiles of the extrusion.
    [042] Figure 1G illustrates the expansion along the deformable section 104 expanding the elastic material 156 in a direction away from the helical shape. As shown, the flexible material 158 allows for the formation of the helical shape, but prevents the passage 120 from occluding.
    [043] Figure 1H shows a cross-sectional view along line 1H-1H in figure 1G. As shown, the elastic material 156 expands away from the helix as the inflation lumen is pressurized (by either a fluid or a gas). Figure 1H further illustrates the elastic material 158 allowing the deflectable section 104 to deform, but still providing a support for the flexible material 156 to expand.
    [044] Figure 2A illustrates a cross-section of the deformable section 104 as shown in figure 1F. Again, the inflation lumen 150 is connected by an expandable material 156 and a flexible material 158. The flexible material allows selective flexing of the deformable section 104 while the expandable material 156 expands under pressurization of the inflation lumen 150. Again, the elastic material 156 can be oriented so that material 156 expands out of the helical fashion while maintaining passageway 120 so that the flow remains through the organ or lumen of the body.
    [045] In one example, the non-expandable part of the device can be made of Peba, Polyurethane, Nylon or a mixture of Polyurethane and Siloxane, or Peba and Siloxane, or Nylon and Siloxane. In variations comprising Peba and Siloxane, or Polyurethane and Siloxane, or Nylon and Siloxane, the extrusion is processed so that Siloxane is evenly dispersed through another material. Having even siloxane wear allows for increased lubrication evenly throughout the extrusion. Alternating variations include a device made of any generally known material used in medical device applications.
    [046] Figure 2B shows a partial view of a deformable section 104 to illustrate the rotation of the cross-section of the deformable section 104. Figure 2B shows several cross-sectional views along lines 2C/2C to 2K/2K. As shown, the cross section rotates along a length of the deflectable section 104 so that the different materials that form the helically shaped cross section rotate along the deflected part 104. The rate of rotation and/or length at which the cut Transverse turns can be selectively chosen to produce the characteristics needed for the particular application.
    [047] Figures 3A to 3C illustrate variations of the helical shape 110 of various deviating sections 104. Figure 3A illustrates a helical shape having a uniform diameter 170, 172 between turns of the helix as well as a uniform height 174. Figure 3B illustrates a varying diameter. In this example, the diameter 174 reduces in a distal direction so that the distal loop has a smaller diameter 176 than the proximal loop. Figure 3C illustrates a helical shape having varying height as measured by distances 178, 180, 182. As shown, height expands in a distal direction. However, height can expand in a proximal direction as well.
    [048] Figure 4A illustrates a variation of a catheter 100 having a single helical turn 112. Figure 4B illustrates a side view of the catheter 100 of Figure 4A. Figure 4C shows the variation of Figure 4A under the expansion of elastic material 156 while flexible material 158 deforms to form loop 112 and provides support to form passageway 120. Figure 4C further shows a guidewire 188 being inserted into a lumen of the guide wire.
    [049] Figures 5A to 5C illustrate an example of a method for using a catheter 100 as described in this document. As shown in Figure 5A, a catheter 100 is inserted into a vessel 10 or organ (in this variation the vessel comprises an aortic arch). However, catheter 100 can be sized to fit various organs or vessels in the body. Catheter 100 can optionally be used to expand an implant 200 within vessel 10. Alternatively, catheter 100 can be used alone to provide an expanding force against the organ or vessel. Figure 5B illustrates the transformation of the deflectable section 104 of the catheter 100 into a helix. As shown, this can optionally partially expand implant 202 for positioning or partial installation. Figure 5C shows the expansion of the elastic material to fully install the implant 202. As described above, flow continues in vessel 10 due to the passage in the helical shape.
    [050] Figure 6A shows a variation of a device having a guidewire lumen 152 that extends through the device and has multiple openings 114 to allow a guidewire to pass outside the bypass section 104 and then reinsert the device 100 into an opening 114 in the distal portion 102 so that the guide wire can pass through a distal opening of the guide wire 114. As shown, the lumen of the guide wire 152 can extend adjacent to a pull wire 108 or other similar means in the proximal portion 106. of device 100. However, at or near the bypass section 104, the guidewire lumen exits the device 100 at the opening 114 so that the guidewire can exit the device along the bypass section 104 and then reinsert the device in a second opening 114 adjacent to the distal portion 102 of the device. This configuration allows the guidewire to extend out of the most distal opening 114.
    [051] Figure 6B illustrates a guidewire 188 extending through the device 100, but passing through helical loops 110. The guidewire 188 then reenters the distal portion 102 of the device 100 so that a physician can navigate the distal portion 102 of device 100 using guidewire 188.
    [052] Figures 7A and 7B show another variation of a device 100 having an actuator 194 that allows expansion of the deflectable section 104 as it forms the helical turns 112. Figure 7A shows the device 100 in a linear configuration where a pull wire 108 which extends through the bypass section 104 still extends closely and is coupled to the actuator 192. In this variation, the pull wire 108 is coupled to a piston 194 in the actuator 192. The actuator 129 is further coupled to a valve 190 (in this variation the valve is a three-way valve). The valve is further coupled to an installation 186 of device 100. It is noted that the pull wire 108 can be separated from the guide wire which is inserted through the guide wire lumen 152.
    [053] Figure 7B represents a fluid source being actuated through valve 190 as represented by arrow 210. Fluid 210 travels through device 100 as shown by arrow 212 to expand the expandable area as discussed above. However, three-way valve 190 still causes fluid to pressurize actuator 192 to drive piston 194 out of actuator 192. Since piston 194 is coupled to pull wire 108, movement of piston 194 causes movement proximal of the pullstring as noted by arrow 216. The movement of the pullstring causes turns 112 of the deflectable section 104 to form the helical shape.
    [054] Figures 8A-8D illustrate another aspect for use with the devices described in this document. The figures show a cross-sectional view of an expandable section of device 100. In this variation, device 100 includes a fluid delivery lumen 162 which allows for delivery of a fluid substance from the main body of the catheter. Figure 8A shows a variation in which a fluid delivery lumen 162 is located in an expandable wall 156 of device 100. Alternative variations allow fluid delivery lumen 162 to be positioned anywhere within the walls of device 100. Figure 8B illustrates a variation of device 100 with a plurality of fluid delivery lumens 162. Although not depicted in Figures 8A-8D, fluid delivery lumen 162 will have one or more ports that deposit fluid at a desired location outside the device body 100. Figure 8C shows device 100 in an expanded state where fluid delivery lumen 162 takes the form of an oval without being occluded. Figure 8D illustrates another variation of a device 100 where the fluid delivery lumen 162 is formed by an expandable section 163 on an outer portion of the catheter 100. This configuration allows for a large fluid delivery lumen that can expand to facilitate passage. of a fluid. Fluid delivery lumen 162 will have one or more fluid delivery ports (not shown in Figures 8A through 8D) that allow delivery of fluid when the catheter is in straight and/or coiled shape.
    [055] Figures 9A and 9B illustrate variations of a device as described in this document where one or more fluid ports 128 terminate in an outer surface of the coiled or helical portion of the device 100. Ports 128, which are in fluid communication with the fluid lumen, can be positioned on either side or both sides of the helical turn 112 of the deflectable section 104. In this configuration, placing the ports 128 on the sides and/or within the helical turn 112 prevents the port 128 from being blocked during expansion of bypass section 104. Figure 9B illustrates another variation of a device 100 having ports 128. In this variation, ports 128 are centrally positioned in turns 128 of bypass section 104. Figures 9A and 9B further show device 100 having any number of hubs 196, 198 that can be fluidly coupled to the fluid delivery lumen (not shown) such that an external source of fluid can be attached to the respective hub. taking the fluid administration. In additional variations, ports may be located on additional portions of the catheter, including, but not limited to, the non-expanding portion of the catheter.
    [056] Figure 10 illustrates a variation of the device 100 described herein positioned in a coronary artery 14 in a heart 12 where the bypass section 104 is rolled up while allowing blood flow through the coronary vessel 14. Device 100 still allows for administration of drugs, medication, and other agents through the ports described above.
    [057] Figures 11A and 11B show additional variations of the device where the helical or deflectable section is joined to a proximal part 106 and a distal part 102 so that the deflectable section comprises an elastic material 156 and a flexible material 158 to allow for deformation into a helical shape. As shown, the bypass section 104 can optionally be selected to be a light or semi-clear material.
    [058] Figures 12A to 12D show another example of a device 100 having a function that assists in forming the deflectable section 104 into a helical structure. As with the other variations described in this document, the features and aspects of each example discussed in this document may be combined with other disclosed variations of the device where these features do not conflict.
    [059] As shown in Figure 12A, device 100 includes a thread 204 (which may be a thread, suture, thread, cord, or similar structure) that extends from a proximal end of device 100 (e.g., through a hub 196 as shown) in a first opening 208 that is located proximate to (or at a proximal end) of the bypass section 104. The wire 204 extends out of the device along a portion of the bypass section 104 and reinserts the device 100 at a distal location 218 (or at a distal end) in the bypass section 104. Wire 204 may be secured at distal location 218 or may be free floating as long as it can remain within the device at distal opening 218. Figure 12A further illustrates this variation of device 100 as having a hub 196 with a locking feature 206. The locking feature 206 secures the wire 204 when desired. As discussed below, once the bypass section is positioned as desired, the wire 204 can be locked in place using the locking feature 206 to secure the helical shape of the bypass section. In a further variation, wire 204 can be coupled to a piston mechanism as described in Figures 7A and 7B above.
    [060] Figure 12B illustrates the bypass section 104 as it begins to wind. As mentioned above, the deflectable section 104 can take on a coiled form using a drawstring or the natural characteristics of the materials that make up device 100. As shown, the string 204 remains outside the device 100. Figure 12C illustrates the wire 204 being removed to close the distance between the proximal opening 208 and the distal opening 218. This action allows the deflectable section 104 of the device 100 to form a curled shape as desired. Figure 12D illustrates the helical shape of the deformable section 104 when the wire (not shown) grips the helical coil of the device. Although the variation depicted in Figures 12A through 12D only winds a single turn of the helical shape, any number of strands can be used to form additional turns of the device. Alternatively, a wire may pass through any number of turns of the deflectable section 104.
    [061] In another variation, the device may include a rope or other similar member that is attached to a proximal end of the distal tip and extends through the lumen of the pull cord exiting where the first balloon circuit begins. Then, when the catheter forms its first circuit, the cord returns to the lumen. This could be repeated depending on the number of circuits in the balloon. When the catheter is straight before inflation, the cord is external for a few inches at any point along the length of the catheter in the loop section, or two points if it has two loops. The cord can be pulled from the rear either manually or with the syringe plunger concept revealed above.
    权利要求:
    Claims (30)
    [0001]
    1. CATHETER, characterized in that it comprises: a proximal part (106), a distal part (102) and a deflectable section (104) located between them; wherein a cross-section of the deflectable section comprises an elastic material (156) on a first side and a flexible support material (158) on a second side, an inflation lumen (150) connected by both the elastic material and the support material flexible, and where the elastic material has a different Youngs modulus
    [0002]
    2. CATHETER according to claim 1, characterized in that when the deflectable section is in coiled or helical shape, the flexible support material is located along an inner diameter of the coiled or helical shape and the elastic material is located in a outer diameter of the coiled or helical shape, so that, on increasing a pressure within the inflation lumen, the elastic material expands radially outward of the coiled or helical shape.
    [0003]
    A CATHETER according to claim 1, further comprising a guidewire lumen (152) extending through the proximal portion and the flexible support material of the deflectable section.
    [0004]
    4. CATHETER, according to claim 3, characterized in that the guidewire lumen extends through a center of the proximal part, the distal part and the deflectable section.
    [0005]
    CATHETER according to claim 1, characterized in that a hardness of the flexible support material is less than a hardness of the proximal part.
    [0006]
    6. CATHETER according to claim 1, characterized in that the coiled or helical shape comprises at least one turn.
    [0007]
    The CATHETER according to claim 1, characterized in that the coiled or helical shape comprises a plurality of turns and the coiled or helical shape has a height and a diameter.
    [0008]
    CATHETER according to claim 7, characterized in that at least two turns of the plurality of turns are continuous along a length of the coiled or helical shape.
    [0009]
    The CATHETER of claim 7, characterized in that at least two turns of the plurality of turns are spaced apart and do not touch along a length of the coiled or helical shape.
    [0010]
    10. CATHETER according to claim 7, characterized in that the height of the coiled or helical shape is consistent for the plurality of turns.
    [0011]
    11. CATHETER according to claim 7, characterized in that the height of the coiled or helical shape varies as to the plurality of turns.
    [0012]
    CATHETER according to claim 7, characterized in that the diameter of the coiled or helical shape is consistent over a length of the coiled or helical shape.
    [0013]
    CATHETER according to claim 7, characterized in that the diameter of the coiled or helical shape varies along a length of the coiled or helical shape.
    [0014]
    A CATHETER according to claim 1, further comprising a drawstring (108, 204) extending through the flexible support material at least along the length of the deflectable section and at least to the proximal portion of the catheter, so that the proximal tension applied to the pull wire causes the deflectable section to shift into a coiled or helical shape.
    [0015]
    The CATHETER of claim 14, characterized in that the drawstring extends through a lumen of the drawstring and wherein the drawstring lumen and the inflation lumen are located 180 degrees opposite to the cross-section of the bypass section.
    [0016]
    16. CATHETER according to claim 1, characterized in that the deflectable section is deflectable from a first configuration to a second configuration, in which when the deflectable section is in the second configuration, the deflectable section has a coiled or helical shape, and where in In transition from the first configuration to the second configuration, the flexible support material constrains the elastic material so that the elastic material, the inflation lumen and the flexible support material automatically form the coiled or helical shape when the inflation lumen is inflated.
    [0017]
    17. CATHETER according to claim 1, characterized in that the deflectable section is deflectable with a pull wire and/or through the inflation of the inflation lumen.
    [0018]
    18. CATHETER according to claim 1, characterized in that when the deflectable section is in coiled or helical shape, the flexible support material is located along an inner diameter of the coiled or helical shape and the elastic material is located in a outer diameter of the coiled shape or helical shape so that by increasing the pressure within the inflation lumen, the elastic material expands radially outward from the flexible support material.
    [0019]
    19. CATHETER according to claim 1, characterized in that the cross-section of the deflectable section rotates along the length of the deflectable section so that the elastic material, the inflation lumen and the flexible support material extend helically along the length of the bypass section.
    [0020]
    20. CATHETER according to claim 1, characterized in that it further comprises an elongated member, wherein the deflectable section can be fixed in coiled or helical shape through the elongated member.
    [0021]
    The CATHETER of claim 20, characterized in that the elongate member comprises a thread, a suture, a cord or a thread.
    [0022]
    22. CATHETER, according to claim 20, characterized in that the deflectable section is deflectable in coiled or helical form by means of inflation of the inflation lumen and/or via proximal movement of the elongated member.
    [0023]
    23. CATHETER according to claim 20, characterized in that the deflectable section is deflectable from a first configuration to a second configuration, in which when the deflectable section is in the second configuration, the deflectable section has a coiled or helical shape, and where else of a distal end of the elongate member is within the catheter when the deflectable section is in the second configuration than when the deflectable section is in the first configuration.
    [0024]
    24. CATHETER according to claim 20, characterized in that more than one distal end of the elongated member is within the catheter when the deflectable section is in a secure configuration than when the deflectable section is in an unsecured configuration.
    [0025]
    25. CATHETER according to claim 20, characterized in that the elongated member is fixed to the distal catheter of the deflectable section.
    [0026]
    26. CATHETER according to claim 20, characterized in that the elongated member is movable by means of an actuator.
    [0027]
    27. CATHETER according to claim 26, characterized in that the actuator comprises a piston.
    [0028]
    28. CATHETER, according to claim 26, characterized in that the trigger can be activated by means of a fluid.
    [0029]
    29. CATHETER according to claim 26, characterized in that the trigger and the inflation lumen are simultaneously pressurizable by means of a fluid.
    [0030]
    30. CATHETER according to claim 26, characterized in that the elongated member is fixable by means of a lock.
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    引用文献:
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    法律状态:
    2018-11-21| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-11-12| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-01-26| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2021-06-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-06-22| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 01/10/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201261708524P| true| 2012-10-01|2012-10-01|
    US61/708,524|2012-10-01|
    US201261724875P| true| 2012-11-09|2012-11-09|
    US61/724,875|2012-11-09|
    US201261734860P| true| 2012-12-07|2012-12-07|
    US61/734,860|2012-12-07|
    PCT/US2013/062908|WO2014055547A1|2012-10-01|2013-10-01|Helical balloon catheter|
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