Tissue supporting device

Abstract

The invention discloses a tissue support device, and relates to the technical field of medical instruments, the tissue support device comprises a support main body, two ends of the support main body are respectively provided with a wire harness hole I and a wire harness hole II, and the support main body is provided with a plane section; a mounting hole is formed in the plane section, a first adjusting ring and a second adjusting ring which can rotate relatively are mounted in the mounting hole, and ratchet wheel structures which are symmetrically arranged are arranged on the first adjusting ring and the second adjusting ring; a rotation stopping hole structure is arranged on the plane section and positioned on the outer side of the mounting hole; the first adjusting ring and the second adjusting ring are provided with sliding block structures. A first groove and a second groove are formed in the positions, corresponding to the first sliding block and the second sliding block, of the stent body, the radial size and the axial size of the peripheral stent can be adjusted according to the iliac vein blood vessel size of the pressed position, the requirement for preventing the iliac vein blood vessel stress syndrome of different stress sizes is met, and the device is simple and clear in structure, convenient to use and high in practicability. Disassembly and assembly are convenient, and operation is easy.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a tissue support device. Background Technology

[0002] Iliac vein compression syndrome (IVCS) is a condition caused by anatomical abnormalities (such as compression of the left iliac vein by the right iliac artery) or thrombosis, leading to narrowing or occlusion of blood vessels. It often results in serious complications such as lower extremity swelling, pain, varicose veins, and deep vein thrombosis (DVT). Traditional treatments include open surgery and thrombolysis, but these are highly invasive, have long recovery periods, and carry a high risk of restenosis.

[0003] The clinical application of iliac vein stents began in the 1980s. With the development of domestic medical technology, domestic companies such as Shanghai Ensheng Medical have launched [stents / products]. Venous stents, employing an "engraving + braiding" process, cover all indications (NIVCS, DVT, PTS), and market penetration is accelerated through centralized procurement. The diversification of domestically produced stent models (such as the 150mm ultra-long stent) further meets the needs of complex lesions.

[0004] Despite continuous advancements in iliac vein stenting technology, the root cause of iliac vein compression syndrome, which is caused by anatomical abnormalities, is the compression of the left iliac vein by the right iliac artery. Even with peripheral stent implantation surgery, the stretched iliac vein is still subjected to compression from the iliac artery, posing a constant risk of restenosis. Therefore, this patent proposes a novel peripheral vascular stent device that addresses the anatomical structure to prevent compression of the iliac vein by the iliac artery and eliminates the risk of postoperative restenosis. Summary of the Invention

[0005] The purpose of this invention is to provide a tissue support device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tissue support device, comprising a support body, wherein the support body is a bendable sheet-like thin plate made of elastic material, and wire harness hole one and wire harness hole two are respectively provided at both ends of the support body, and a planar segment is provided on the support body;

[0007] The planar segment is provided with mounting holes, and an adjusting ring one and an adjusting ring two that can rotate relative to each other are installed in the mounting holes. The adjusting ring two is located outside the adjusting ring one and the two are concentrically arranged.

[0008] The first and second adjustment rings are provided with symmetrically arranged ratchet structures, which are fixedly installed inside the planar section of the main body of the support.

[0009] An anti-rotation hole structure is provided on the outer side of the mounting hole on the planar segment, and the anti-rotation hole structure is connected to the ratchet structure by a wire harness;

[0010] The first and second adjustment rings are provided with slider structures, the slider structures include slider one and slider two and both are connected to the first and second adjustment rings;

[0011] The main body of the bracket is provided with groove 1 and groove 2 at the positions corresponding to slider 1 and slider 2, and slider 1 and slider 2 can slide into groove 1 and groove 2 respectively.

[0012] Preferably, the two ends of the main support are provided with inclined surfaces that slope outward to reduce the width, and the inclined surfaces are minimized at the positions of wire harness hole one and wire harness hole two.

[0013] Preferably, an adjustment knob is provided on the outer side of the first adjustment ring, and an adjustment knob is provided on the outer side of the second adjustment ring. Both the first and second adjustment knobs are provided with wire harnesses and can rotate by pulling the wire harnesses.

[0014] Preferably, the inner side of the first adjusting ring is provided with a cylindrical boss 1 and a cylindrical boss 2 arranged opposite to each other, and the inner side of the second adjusting ring is provided with a cylindrical boss 3 and a cylindrical boss 4.

[0015] Preferably, the upper end of the slider is provided with a guide groove 1 and a guide groove 2 arranged perpendicularly to the guide groove 1. The guide groove 1 is slidably connected to the cylindrical boss 4, and the guide groove 2 is slidably connected to the cylindrical boss 1.

[0016] Preferably, the lower end of the slider two is provided with a guide groove three and a guide groove four arranged perpendicularly to the guide groove three. The guide groove three is slidably connected to the cylindrical boss three, and the guide groove four is slidably connected to the cylindrical boss two.

[0017] Preferably, the anti-rotation hole structure includes anti-rotation hole one, anti-rotation hole two, anti-rotation hole three and anti-rotation hole four arranged opposite to each other. Anti-rotation hole one and anti-rotation hole two are arranged as one group adjacent to each other, and anti-rotation hole three and anti-rotation hole four are arranged as one group adjacent to each other. The two groups are arranged opposite to each other around the mounting hole.

[0018] Preferably, the ratchet structure includes an upper ratchet structure and a lower ratchet structure, which are arranged opposite to each other around the mounting hole and are both installed inside the bracket body;

[0019] The upper ratchet structure includes a pawl one, a torsion spring one, and a pawl two. Pawl one and pawl two are respectively installed on both sides of the torsion spring one. Pawl one abuts against the outer wall of the adjusting ring one under the force of the torsion spring one, and pawl two abuts against the outer wall of the adjusting ring two under the force of the torsion spring one.

[0020] The lower ratchet structure includes a third pawl, a second torsion spring, and a fourth pawl. The third pawl and the fourth pawl are respectively installed on both sides of the second torsion spring. The third pawl abuts against the outer wall of the second adjusting ring under the force of the second torsion spring, and the fourth pawl abuts against the outer wall of the first adjusting ring under the force of the second torsion spring.

[0021] Preferably, the first pawl is provided with a pull ring, the second pawl is provided with a pull ring, the third pawl is provided with a pull ring, and the fourth pawl is provided with a pull ring.

[0022] Preferably, a wire harness is attached to the pull ring and extends through the anti-rotation hole to the outer side of the planar section;

[0023] A wire harness is attached to the second pull ring and extends through the second anti-rotation hole to the outside of the planar section;

[0024] A wire harness is attached to the pull ring three and extends through the anti-rotation hole three to the outside of the planar section;

[0025] A wire harness is attached to the pull ring four and extends through the anti-rotation hole four to the outside of the planar section.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] This invention enables the adjustment of the radial and axial dimensions of a peripheral stent according to the size of the iliac vein at the compression site, meeting the prevention needs of iliac vein compression syndrome with different compression sizes. The device has a simple structure, is easy to assemble and disassemble, and is easy to operate. Attached Figure Description

[0028] Figure 1 This is an isometric view of the present invention;

[0029] Figure 2 This is a front view of the present invention;

[0030] Figure 3 This is a diagram of the internal adjustment structure of the present invention;

[0031] Figure 4 This is a diagram of the internal adjustment structure of the present invention.

[0032] In the diagram: 1 - Main body of the support frame;

[0033] 2-Adjusting ring one;

[0034] 3-Adjusting ring two;

[0035] 4-Slider 1;

[0036] 5-Slider 2;

[0037] 6-Spiked Claw 1;

[0038] 7-Spiked Claw II;

[0039] 8-Spiny claw three;

[0040] 9-Spiked claw four;

[0041] 10-Torsion Spring II;

[0042] 11-Torsion Spring 1;

[0043] 12-Anti-rotation hole one;

[0044] 13-Anti-rotation hole two;

[0045] 14-Anti-rotation hole three;

[0046] 15-Anti-rotation hole four;

[0047] 16-Wire harness hole one;

[0048] 17-Wire harness hole two;

[0049] 18 - Adjustment knob two;

[0050] 19-Adjustment knob one;

[0051] 20-Pull ring one;

[0052] 21-Pull ring two;

[0053] 22-Pull ring three;

[0054] 23-Pull ring four;

[0055] 24-Cylindrical Boss Three;

[0056] 25-Cylindrical Boss Four;

[0057] 26-Cylindrical Boss 1;

[0058] 27-Cylindrical Boss Two;

[0059] 28-Guide groove three;

[0060] 29-Guide groove one;

[0061] 30-Guide groove two;

[0062] 31-Guide groove four;

[0063] 32-Groove II;

[0064] 33-Groove 1. Detailed Implementation

[0065] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0066] Please see Figures 1 to 4 The present invention provides a technical solution: a tissue support device, including a support body 1, wherein the support body 1 is a bendable sheet-like thin plate made of elastic material, and the two ends of the support body 1 are respectively provided with a wire harness hole 16 and a wire harness hole 17, and the support body 1 is provided with a planar section, and the support body 1 is made of nickel-titanium shape memory alloy.

[0067] The planar segment is provided with mounting holes, and an adjusting ring 2 and an adjusting ring 3 that can rotate relative to each other are installed in the mounting holes. The adjusting ring 3 is located outside the adjusting ring 2 and the two are concentrically arranged.

[0068] The first adjustment ring 2 and the second adjustment ring 3 are provided with symmetrically arranged ratchet structures, and the ratchet structures are fixedly installed inside the planar section of the support body 1;

[0069] An anti-rotation hole structure is provided on the outer side of the mounting hole on the planar segment, and the anti-rotation hole structure is connected to the ratchet structure by a wire harness;

[0070] The first adjustment ring 2 and the second adjustment ring 3 are provided with a slider structure, the slider structure includes a first slider 4 and a second slider 5, both of which are connected to the first adjustment ring 2 and the second adjustment ring 3;

[0071] The support body 1 has grooves 33 and 32 at positions corresponding to slider 4 and slider 5, respectively, and slider 4 and slider 5 can slide into grooves 33 and 32 respectively.

[0072] In this embodiment, the two ends of the main support 1 are provided with inclined surfaces that tilt outwards, resulting in a reduction in width. The inclined surfaces are minimized at the positions of wire harness hole 16 and wire harness hole 17, which helps the curled support body 1 to form a cylindrical shape with flat edges. At the same time, by pulling the wire harness hole 16 and wire harness hole 17, the diameter of the cylinder can be adjusted.

[0073] In this embodiment, an adjustment knob 19 is provided on the outer surface of the adjustment ring 2, and an adjustment knob 18 is provided on the outer surface of the adjustment ring 3. Both the adjustment knob 19 and the adjustment knob 18 are provided with wire harnesses and can rotate the adjustment ring 2 and the adjustment ring 3 by pulling the wire harnesses.

[0074] In this embodiment, the inner side of the adjusting ring 2 is provided with a cylindrical boss 26 and a cylindrical boss 27 arranged opposite to each other, and the inner side of the adjusting ring 3 is provided with a cylindrical boss 24 and a cylindrical boss 25.

[0075] In this embodiment, the upper end of the slider 4 is provided with a guide groove 29 and a guide groove 30 perpendicular to the guide groove 29. The guide groove 29 is slidably connected to the cylindrical boss 25, and the guide groove 30 is slidably connected to the cylindrical boss 26.

[0076] In this embodiment, the lower end of the slider 2 5 is provided with a guide groove 3 28 and a guide groove 4 31 that is perpendicular to the guide groove 3 8. The guide groove 3 28 is slidably connected to the cylindrical boss 3 24, and the guide groove 4 31 is slidably connected to the cylindrical boss 2 30.

[0077] In this embodiment, the anti-rotation hole structure includes anti-rotation hole one 12, anti-rotation hole two 13, anti-rotation hole three 14 and anti-rotation hole four 15 arranged opposite to each other. Anti-rotation hole one 12 and anti-rotation hole two 13 are arranged as one group, and anti-rotation hole three 14 and anti-rotation hole four 15 are arranged as one group. The two groups are arranged opposite to each other around the mounting hole.

[0078] In this embodiment, the ratchet structure includes an upper ratchet structure and a lower ratchet structure. The upper ratchet structure and the lower ratchet structure are arranged opposite to each other around the mounting hole and are both installed inside the bracket body 1.

[0079] The upper ratchet structure includes a pawl 6, a torsion spring 11, and a pawl 7. Pawl 6 and pawl 7 are respectively installed on both sides of the torsion spring 11. Pawl 6 abuts against the outer wall of the adjusting ring 2 under the force of the torsion spring 11, and pawl 7 abuts against the outer wall of the adjusting ring 3 under the force of the torsion spring 11.

[0080] The lower ratchet structure includes a third pawl 8, a second torsion spring 10, and a fourth pawl 9. The third pawl 8 and the fourth pawl 9 are respectively installed on both sides of the second torsion spring 10. The third pawl 8 abuts against the outer wall of the second adjusting ring 3 under the force of the second torsion spring 10, and the fourth pawl 9 abuts against the outer wall of the first adjusting ring 2 under the force of the second torsion spring 10.

[0081] In this embodiment, the first pawl 6 is provided with a pull ring 20, the second pawl 7 is provided with a pull ring 21, the third pawl 8 is provided with a pull ring 22, and the fourth pawl 9 is provided with a pull ring 23.

[0082] In this embodiment, a wire harness is attached to the pull ring 20 and extends through the anti-rotation hole 12 to the outside of the planar segment;

[0083] A wire harness is attached to pull ring 21 and extends through anti-rotation hole 213 to the outside of the planar section;

[0084] A wire harness is attached to pull ring 322 and extends through anti-rotation hole 314 to the outside of the planar section;

[0085] A wire harness is attached to pull ring 423 and extends through anti-rotation hole 415 to the outside of the planar section.

[0086] Working principle: Under no external force applied, pawls 1-6, 2-7, 3-8, and 4-9 are locked under the action of torsion springs 1-11 and 2-10. Adjusting rings 1-2 and 2-3 are stationary and cannot rotate under the action of the pawls. Slider 1-4 and 2-5 are also stationary and cannot move under the action of adjusting rings 1-2 and 2-3. At this time, the entire device is stationary. Figure 1 As shown.

[0087] During the surgical implantation, the wire bundles in the wire bundle holes 16 and 17 at both ends of the stent body 1 are first stretched to unfold the stent body 1 into a flat strip. Then, the center of the stent body 1 is placed against the iliac vein where it is compressed, and the wire bundles are slowly released so that the stent body 1 wraps around the blood vessel. Next, the wire bundle in the anti-rotation hole 12 at the plane of the stent body 1 is stretched to release the pawl 6. At this time, the operating wire bundle attached to the adjustment knob 19 on the adjustment ring 2 can be rotated counterclockwise to rotate the axial adjustment ring 2. Thus, sliders 4 and 5 move axially from the center of the plate to the outer side, i.e., the plate at both ends of the stent body 1. When sliders 4 and 5 are inserted into the grooves 33 and 32 at both ends of the stent body 1, respectively, the wire bundle in the anti-rotation hole 12 at the plane of the stent body 1 is released. At this time, pawl 6 and the other pawls are locked, the stent structure is stable, and it is in the initial working state.

[0088] Next, adjust the radial and axial length of the stent according to the diameter of the iliac vein and the length of the compression point. This device allows for adjustment in four directions: two radially and two axially. The specific steps are as follows:

[0089] 1. Pull out the wire harness of the anti-rotation hole 12 on the plane of the bracket body 1, so that the pawl 6 is released. At this time, pull the operating wire harness on the adjustment knob 19 of the adjustment ring 2 and rotate the adjustment ring 2 counterclockwise, so that the slider 4 and slider 5 move outward from the center of the plate along the axis, thereby increasing the axial length of the bracket.

[0090] 2. Pull out the wire harness of the anti-rotation hole 13 on the plane of the bracket body 1, so that the pawl 7 is released. At this time, pull the operating wire harness on the adjustment knob 18 of the adjustment ring 3 and rotate the adjustment ring 3 clockwise, so that the slider 4 and slider 5 move radially from the center of the plate to the outside, thereby increasing the radial size of the bracket.

[0091] 3. Pull out the wiring harness of the anti-rotation hole 3 14 on the plane of the bracket body 1, so that the pawl 3 8 is released. At this time, pull the operating wiring harness on the adjustment knob 2 18 of the adjustment ring 2 3 and rotate the adjustment ring 2 3 counterclockwise, so that the slider 1 4 and slider 2 5 move radially from the outside to the center of the plate, thereby reducing the radial size of the bracket.

[0092] 4. Pull out the wiring harness of the anti-rotation hole 4 15 on the plane of the bracket body 1, so that the pawl 4 9 is released. At this time, pull the operating wiring harness on the adjustment knob 19 of the adjustment ring 2 and rotate the adjustment ring 2 clockwise, so that the slider 1 4 and slider 2 5 move axially from the outside to the center of the plate, thereby reducing the axial length of the bracket.

[0093] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A tissue support device, characterized in that: Includes a support body (1), which is a flexible sheet made of elastic material. The two ends of the support body (1) are respectively provided with wire harness hole one (16) and wire harness hole two (17). The support body (1) is provided with a planar segment. The planar segment is provided with mounting holes, and an adjusting ring one (2) and an adjusting ring two (3) that can rotate relative to each other are installed in the mounting holes. The adjusting ring two (3) is located outside the adjusting ring one (2) and the two are concentrically arranged. The first adjustment ring (2) and the second adjustment ring (3) are provided with symmetrically arranged ratchet structures, which are fixedly installed inside the planar section of the support body (1); An anti-rotation hole structure is provided on the outer side of the mounting hole on the planar segment, and the anti-rotation hole structure is connected to the ratchet structure by a wire harness; The first adjustment ring (2) and the second adjustment ring (3) are provided with a slider structure, the slider structure includes a first slider (4) and a second slider (5) and both are connected to the first adjustment ring (2) and the second adjustment ring (3); The support body (1) is provided with groove 1 (33) and groove 2 (32) at the positions corresponding to the slider 1 (4) and slider 2 (5), and the slider 1 (4) and slider 2 (5) can slide into groove 1 (33) and groove 2 (32) respectively.

2. The tissue support device according to claim 1, characterized in that: The main support (1) has inclined surfaces at both ends that tilt outwards, resulting in a reduced width. The inclined surfaces are minimized at the positions of wire harness hole one (16) and wire harness hole two (17).

3. The tissue support device according to claim 1, characterized in that: The outer surface of the first adjustment ring (2) is provided with an adjustment knob (19), and the outer surface of the second adjustment ring (3) is provided with an adjustment knob (18). Both the first adjustment knob (19) and the second adjustment knob (18) are provided with wire harnesses and can rotate the first adjustment ring (2) and the second adjustment ring (3) by pulling the wire harnesses.

4. A tissue support device according to claim 1, characterized in that: The inner side of the first adjustment ring (2) is provided with a cylindrical boss (26) and a cylindrical boss (27) arranged opposite to each other, and the inner side of the second adjustment ring (3) is provided with a cylindrical boss (24) and a cylindrical boss (25).

5. A tissue support device according to claim 4, characterized in that: The upper end of the slider 1 (4) is provided with guide groove 1 (29) and guide groove 2 (30) which is perpendicular to guide groove 1 (29). Guide groove 1 (29) is slidably connected to cylindrical boss 4 (25), and guide groove 2 (30) is slidably connected to cylindrical boss 1 (26).

6. A tissue support device according to claim 4, characterized in that: The lower end of the slider 2 (5) is provided with guide groove 3 (28) and guide groove 4 (31) which is perpendicular to guide groove 3 (8). Guide groove 3 (28) is slidably connected to cylindrical boss 3 (24), and guide groove 4 (31) is slidably connected to cylindrical boss 2 (30).

7. A tissue support device according to claim 1, characterized in that: The anti-rotation hole structure includes anti-rotation hole one (12), anti-rotation hole two (13), anti-rotation hole three (14) and anti-rotation hole four (15) arranged opposite to each other. Anti-rotation hole one (12) and anti-rotation hole two (13) are arranged as one group, and anti-rotation hole three (14) and anti-rotation hole four (15) are arranged as one group. The two groups are arranged opposite to each other around the mounting hole.

8. A tissue support device according to claim 7, characterized in that: The ratchet structure includes an upper ratchet structure and a lower ratchet structure. The upper ratchet structure and the lower ratchet structure are arranged opposite each other around the mounting hole and are both installed in the bracket body (1). The upper ratchet structure includes a pawl one (6), a torsion spring one (11) and a pawl two (7). The pawl one (6) and the pawl two (7) are respectively installed on both sides of the torsion spring one (11). The pawl one (6) abuts against the outer wall of the adjusting ring one (2) under the force of the torsion spring one (11), and the pawl two (7) abuts against the outer wall of the adjusting ring two (3) under the force of the torsion spring one (11). The lower ratchet structure includes a third pawl (8), a second torsion spring (10), and a fourth pawl (9). The third pawl (8) and the fourth pawl (9) are respectively installed on both sides of the second torsion spring (10). The third pawl (8) abuts against the outer wall of the second adjusting ring (3) under the force of the second torsion spring (10), and the fourth pawl (9) abuts against the outer wall of the first adjusting ring (2) under the force of the second torsion spring (10).

9. A tissue support device according to claim 8, characterized in that: The first pawl (6) is provided with a pull ring (20), the second pawl (7) is provided with a pull ring (21), the third pawl (8) is provided with a pull ring (22), and the fourth pawl (9) is provided with a pull ring (23).

10. A tissue support device according to claim 9, characterized in that: A wire harness is attached to the pull ring (20) and extends through the anti-rotation hole (12) to the outside of the planar section; A wire harness is attached to the second pull ring (21) and extends through the second anti-rotation hole (13) to the outside of the planar section; A wire harness is attached to pull ring three (22) and extends through anti-rotation hole three (14) to the outside of the planar section; A wire harness is attached to pull ring four (23) and extends through anti-rotation hole four (15) to the outside of the planar section.

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