Multiple anchor implantation system

Abstract

The present invention discloses a multiple anchor implantation system, including a puncher, a pusher and an anchor gun, wherein the anchor gun includes a gun body and a gun head, and the gun head is provided with a plurality of positioning tips; the gun body is provided with two parallel cavities, namely an anchor cavity and a puncher cavity, the anchor cavity extends axially along its cavity body to the gun head, the puncher cavity is bent at a certain angle at the connection between the gun head and the gun body and overlaps with the anchor cavity, and the anchor cavity is provided with a plurality of anchors connected end to end and connected in series through sutures in sequence. The above-mentioned multiple anchor implantation system can continuously implant multiple anchors, thereby significantly improving the implantation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a multiple anchor implantation system. Background Art

[0002] When soft tissue falls off or breaks, or when free fracture bone fragments fall off, wire anchors can be used to fix bones and soft tissues, or bones and bones. One method is to implant the anchor into the bone tunnel. As the anchor is implanted into the bone tunnel, the medical suture is squeezed by the interference fit between the anchor and the bone tunnel to form a jointless fixation, so as to achieve fixation between soft tissue and bone, or bones and bones.

[0003] The medical devices currently used are a puncher and an inserter with an anchor. The puncher is first used to punch a nail tunnel in the bone, and then the anchor is implanted with a thread. Then a second nail tunnel is punched, the suture of the first anchor is pulled out, inserted into the second anchor, and then the anchor is implanted. This cycle is repeated, and the efficiency is very low. Summary of the invention

[0004] The purpose of the present invention is to provide a multiple anchor implantation system, which can continuously implant multiple anchors, thereby significantly improving the implantation efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides a system for implanting multiple anchors, including a puncher, a pusher and an anchor gun, wherein the anchor gun includes a gun body and a gun head, and a plurality of positioning tips are arranged on the gun head; two parallel cavities are arranged in the gun body, namely an anchor cavity and a puncher cavity, and the anchor cavity extends axially along its cavity body to the gun head, and the puncher cavity overlaps with the anchor cavity after bending at a certain angle at the connection between the gun head and the gun body, and a plurality of anchors connected end to end and connected in series by sutures are arranged in sequence in the anchor cavity.

[0006] Preferably, the inner diameters of the anchor cavity and the punch cavity are both in the range of 1.5-15 mm.

[0007] Preferably, each of the anchors is provided with a withdrawal device for withdrawing the anchor from the anchor cavity.

[0008] Preferably, the retreat device is a retreat line arranged at the tail of each anchor, and each retreat line is provided with a mark for easy identification.

[0009] Preferably, the retreat device is a hollow tube which is sleeved on the outside of each anchor and located inside the anchor cavity, and an elastic closing end is provided on one end of the hollow tube close to the gun head.

[0010] Preferably, the retreat device is a C-shaped sleeve sleeved outside the anchor cavity, and two elastic claws are provided on one end of the C-shaped sleeve close to the gun head, and the two elastic claws clamp the anchor through an axial gap provided outside the anchor cavity.

[0011] Preferably, the punch comprises a punch head, a bendable punch section and a punch handle.

[0012] Preferably, the pusher comprises a pusher body and a pusher head, and scale lines are arranged on the outer side of the pusher body.

[0013] Preferably, a handle is provided on the outside of the gun body.

[0014] The multiple anchor implantation system provided by the present invention comprises a puncher, a pusher and an anchor gun, wherein the anchor gun comprises a gun body and a gun head, and a plurality of positioning tips are arranged on the gun head; two parallel cavities are arranged in the gun body, namely an anchor cavity and a puncher cavity, the anchor cavity extends axially along its cavity body to the gun head, the puncher cavity overlaps with the anchor cavity after bending at a certain angle at the connection between the gun head and the gun body, and a plurality of anchors connected end to end and connected in series through sutures are arranged in sequence in the anchor cavity.

[0015] When a fracture occurs or a ligament or tendon falls off or breaks, the free bone, ligament or tendon is first repositioned, and then the anchor gun of the multiple anchor implantation system is sent through the incision to the part that needs to be fixed, and finally the matching puncher is used to drill the nail track under the guidance of the puncher cavity. When drilling the nail track, the anchor gun can be used as a guide drill to prevent muscles, blood vessels, nerves, etc. from being entangled in the puncher and causing medical accidents. After the nail track is drilled, the puncher is pulled out, and the pusher is inserted into the pusher cavity, that is, the anchor cavity. The tail of the pusher is tapped to implant the anchor into the nail track, and the anchor and suture are fixed by the interference fit between the anchor and the nail track.

[0016] After each anchor is implanted, the anchor gun head is translated to the second fixed position along the bone surface or soft tissue surface, and the second anchor is implanted in the same way. The suture connecting the two anchors is tightened as the anchor is implanted into the nail channel, thereby achieving fixation between bone blocks or between soft tissue and bone.

[0017] The above-mentioned multiple anchor implantation system integrates the drilling of nail channels, threading of sutures, and insertion of wire-attached anchors into one unit, which is convenient for doctors to use, thereby significantly improving the efficiency of the operation.

[0018] In a specific embodiment, each anchor is provided with a withdrawal device for withdrawing the anchor from the anchor cavity. The withdrawal device is provided to facilitate withdrawing the unimplanted anchor from the anchor cavity after the anchor implantation process is completed or when an abnormality occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 It is a cross-sectional view of an anchor gun in a specific embodiment of the present invention;

[0021] Figure 2 is a schematic cross-sectional view of an anchor cavity and a punch cavity;

[0022] Figure 3 is a cross-sectional schematic diagram of another anchor cavity and punch cavity;

[0023] Figure 4 It is a schematic diagram of the structure of the pusher;

[0024] Figure 5 A schematic diagram of the structure of a hole puncher.

[0025] Figures 1 to 5 The reference numerals in the figures are as follows:

[0026] Gun body 1, gun head 2, anchor cavity 3, punch cavity 4, handle 5, anchor 6, positioning tip 7, pusher body 11, scale line 12, pusher head 13, puncher head 21, puncher bendable section 22, puncher handle 23. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The core of the present invention is to provide a multiple anchor implantation system, which can continuously implant multiple anchors, thereby significantly improving the implantation efficiency.

[0029] Please refer to Figure 1-5 , Figure 1 It is a cross-sectional view of an anchor gun in a specific embodiment of the present invention; Figure 2 is a schematic cross-sectional view of an anchor cavity and a punch cavity; Figure 3 is a cross-sectional schematic diagram of another anchor cavity and punch cavity; Figure 4 It is a schematic diagram of the structure of the pusher; Figure 5 A schematic diagram of the structure of a hole puncher.

[0030] In a specific embodiment, the multiple anchor implantation system provided by the present invention includes a puncher, a pusher and an anchor gun, wherein the anchor gun includes a gun body 1 and a gun head 2, and two parallel cavities are arranged in the gun body 1, namely an anchor cavity 3 and a puncher cavity 4, wherein the anchor cavity 3 is used for passing the pusher and the anchor with wire, and the puncher cavity 4 is used for passing the puncher.

[0031] The anchor gun body 1 can be a stainless steel tube with an inner diameter of 4 mm, and the gun head 2 is machined from a stainless steel block, and the steel tube and the gun head 2 can be welded. A plurality of positioning tips 7 can be provided on the gun head 2, and the direction of the tip can be substantially perpendicular to the bone surface or the soft tissue surface, which is used to fix the anchor gun on the bone surface or the soft tissue surface to prevent it from slipping during use. One or more positioning tips 7 can be provided, and their specific shapes are not limited.

[0032] The anchor cavity 3 is a straight tubular cavity as a whole, extending axially along its cavity body to the gun head 2, and the punch cavity 4 is bent at a certain angle at the connection between the gun head 2 and the gun body 1 and overlaps with the anchor cavity 3. In this way, the two can share a gun head 2, and the nail channel drilled by the punch can be at the same position as the anchor cavity 3.

[0033] The hole formed by the anchor cavity 3 and the punch cavity 4 can be a circular hole, a square hole, a D-shaped hole, a regular polygonal hole, etc., as long as the hole can be inserted with the matching anchor, pusher, and puncher. Therefore, there is no requirement for the shape of the hole, but for ease of processing, it is usually a circular hole, a square hole, a D-shaped hole, or a regular polygonal hole.

[0034] A plurality of anchors 6 are sequentially arranged in the anchor cavity 3, which are connected end to end and connected in series through sutures. Of course, the tip of the anchor 6 with a thread faces the direction of the gun head 2 of the anchor gun. The sutures connect the anchors 6 in series, and the sutures are movable, and can be single or multiple.

[0035] When a fracture occurs or a ligament or tendon falls off or breaks, the free bone, ligament or tendon is first repositioned, and then the anchor gun of the multiple anchor implantation system is sent through the incision to the part that needs to be fixed, and finally the matching puncher is used to drill the nail track under the guidance of the puncher cavity. When drilling the nail track, the anchor gun can be used as a guide drill to prevent muscles, blood vessels, nerves, etc. from being entangled in the puncher and causing medical accidents. After the nail track is drilled, the puncher is pulled out, and the pusher is inserted into the pusher cavity, that is, the anchor cavity. The tail of the pusher is tapped to implant the anchor into the nail track, and the anchor and suture are fixed by the interference fit between the anchor and the nail track.

[0036] After each anchor is implanted, the anchor gun head is translated to the second fixed position along the bone surface or soft tissue surface, and the second anchor is implanted in the same way. The suture connecting the two anchors is tightened as the anchor is implanted into the nail channel, thereby achieving fixation between bone blocks or between soft tissue and bone.

[0037] The above-mentioned multiple anchor implantation system integrates the drilling of nail channels, threading of sutures, and insertion of wire-attached anchors into one unit, which is convenient for doctors to use, thereby significantly improving the efficiency of the operation.

[0038] The inner diameters of the anchor cavity 3 and the punch cavity 4 are both in the range of 1.5-15 mm, so that it can be applicable to punchers, pushers, and anchors 6 of various specifications.

[0039] In addition, a handle 5 can be provided on the outside of the gun body 1 for easy gripping during use, and the handle 5 can be coaxial with the gun body 1 of the anchor gun, or can have a certain angle with the gun body 1. Usually, the handle 5 can be machined and sleeved on the outside of the gun body 1. The anchor gun is made of stainless steel or titanium alloy, and the handle 5 can be rubber-coated, and the two are connected by welding.

[0040] In a specific embodiment, each anchor 6 is provided with a withdrawal device for withdrawing it from the anchor cavity 3. The withdrawal device is provided to facilitate withdrawing the unimplanted anchor 6 from the anchor cavity 3 after the anchor 6 implantation process is completed or when an abnormality occurs.

[0041] There are several settings for the backoff device:

[0042] It can be a withdrawal line set at the tail of each anchor 6. The withdrawal line can be a suture. Each withdrawal line can be provided with a mark for easy identification, so as to facilitate the withdrawal of each anchor 6.

[0043] The retreat device can also be a hollow tube that is sleeved on the outside of each anchor 6 and located on the inside of the anchor cavity 3. The hollow tube can be a plastic tube. An elastic closing end is provided on the end of the hollow tube close to the gun head 2. Under the propulsion of the pusher, the anchor 6 can enter the nail channel through the elastic closing end. At the same time, when the hollow tube is pulled out, the elastic closing end can shrink and bring out the anchor 6.

[0044] The retreat device can also be a C-shaped sleeve sleeved on the outside of the anchor cavity 3, and its cross section is C-shaped. Two elastic claws are arranged on the end of the C-shaped sleeve close to the gun head 2, and the two elastic claws can clamp the anchor 6 through the axial gap arranged on the outside of the anchor cavity 3. Of course, there can also be multiple elastic claws. The anchor 6 can only pass between the two elastic claws under the action of the pusher. After an anchor 6 is driven in, the following anchor 6 will be stuck by the elastic claws, so that the retreat of the anchor 6 can be achieved by pulling the C-shaped sleeve backwards.

[0045] In the above-mentioned multiple anchor implantation system, the pusher includes a pusher body 11 and a pusher head 13. The pusher body 11 can be inserted into the anchor cavity 3. Usually, the overall length of the pusher body 11 is slightly larger than the length of the anchor gun. The outer diameter of the pusher head 13 is slightly larger than the outer diameter of the pusher body 11. In addition, a scale line 12 can be set on the outside of the pusher body 11 to facilitate observation and understanding of the length of the anchor 6 pushed out of the anchor gun head 2. When in use, the anchor 6 can be pushed into the nail channel by knocking the pusher head 13. The material of the pusher can be stainless steel or titanium alloy, and the pusher head 13 can be rubber-coated.

[0046] In order to match the punch cavity 4 with the above-mentioned curved design, in the above-mentioned multiple anchor implantation system, the punch includes a punch head 21, a punch bendable section 22 and a punch handle 23. The punch head 21 can be a drill tip and a punch tip, the punch handle 23 is a handle that cannot be bent, and the punch bendable section 22 can be composed of a universal joint or braided with stainless steel wire.

[0047] Specifically, the puncher can be a curved drill that can pass through the puncher cavity 4 and out of the hole of the anchor gun head 2; or it can be a bendable punch that can pass through the puncher cavity 4 and out of the hole of the anchor gun head 2. The puncher can be made of stainless steel or titanium alloy.

[0048] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0049] The above is a detailed introduction to the multiple anchor implantation system provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A multiple anchor implantation system, characterized in that: It comprises a puncher, a pusher and an anchor gun, wherein the anchor gun comprises a gun body and a gun head, and the gun head is provided with a plurality of positioning tips; two parallel cavities are provided in the gun body, namely an anchor cavity and a puncher cavity, the anchor cavity extends axially along its cavity body to the gun head, the puncher cavity is bent at a certain angle at the connection between the gun head and the gun body and overlaps with the anchor cavity, and a plurality of anchors connected end to end and connected in series through sutures are sequentially provided in the anchor cavity; The inner diameters of the anchor cavity and the punch cavity are both in the range of 1.5-15 mm; Each anchor is provided with a withdrawal device for withdrawing it from the anchor cavity.

2. The multiple anchor implantation system according to claim 1, characterized in that: The retreat device is a retreat line arranged at the tail of each anchor nail, and each retreat line is provided with a mark for easy identification.

3. The multiple anchor implantation system according to claim 1, characterized in that: The retreat device is a hollow tube which is sleeved on the outside of each anchor and located inside the anchor cavity. An elastic closing end is arranged on one end of the hollow tube close to the gun head.

4. The multiple anchor implantation system according to claim 1, characterized in that: The retreat device is a C-shaped sleeve sleeved outside the anchor cavity. Two elastic claws are arranged on one end of the C-shaped sleeve close to the gun head. The two elastic claws clamp the anchor through an axial gap arranged outside the anchor cavity.

5. The multiple anchor implantation system according to any one of claims 1 to 4, characterized in that: The punch comprises a punch head, a bendable punch section and a punch handle.

6. The multiple anchor implantation system according to claim 3, characterized in that: The pusher comprises a pusher body and a pusher head, and scale lines are arranged on the outer side of the pusher body.

7. The multiple anchor implantation system according to claim 1, characterized in that: A handle is arranged on the outside of the gun body.

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