CN118141442A

CN118141442A - Full suture ship anchor shape knot-free anchor system

Info

Publication number: CN118141442A
Application number: CN202410579489.6A
Authority: CN
Inventors: 董文兴; 李正戎
Original assignee: Beijing Tianxing Medical Co ltd
Current assignee: Beijing Tianxing Medical Co ltd
Priority date: 2024-05-11
Filing date: 2024-05-11
Publication date: 2024-06-07

Abstract

The invention relates to the technical field of medical appliances, in particular to a full-suture ship anchor-shaped knotting-free anchor system, which comprises a nail body, an inserter and a wire arranging hook, wherein the inserter is arranged on the whole-suture ship anchor-shaped knotting-free anchor system; the anchor body is a full-suture anchor and comprises a fixing piece and a traction wire, wherein the traction wire is inserted through positioning on the fixing piece, so that the fixing piece is deformed from a pre-operation U-shaped structure through fixed-point traction, and a post-operation ship anchor-shaped knotting-free structure is formed; one end of the inserter is connected with the nail body through the wire arranging hook and completes the pulling operation through the knot-forming push button. The anchor-shaped knotting-free structure of the full-suture ship ensures that the gripping force of the nail body and the bone canal is improved, thereby improving the fixing strength of the nail body. The integral nail structure can realize bridging with other implants, and the application range is expanded. In addition, the nail body is deformed through the knotting and withdrawing button, so that the suture is prevented from cutting a doctor, and the wire arranging hooks are used for arranging wires after the inserter is withdrawn, and the operation efficiency can be improved.

Description

Full suture ship anchor shape knot-free anchor system

Technical Field

The invention relates to the technical field of medical appliances, in particular to a full-suture ship anchor-shaped knotting-free anchor system.

Background

At present, the technology of full suture is presented in the arthroscope rotator cuff fracture repair, the problem that the stress concentration, looseness and broken nails of a rigid implant are possibly caused by secondary injury to a patient is solved by utilizing the flexible characteristic of the full suture, but the stability of the full suture implant serving as a fixing piece becomes the technical problem to be primarily solved due to the flexible characteristic of the full suture implant, and specifically:

Aiming at manual knots of full suture anchor: the full suture anchor is characterized in that the suture is pulled by an operator to enable the fixing piece to be formed into a spherical shape through linear deformation, so that a bone canal is clamped, and the fixing effect is achieved. However, the existing full-suture anchor structure can creep into enlarged knots outside the body, but an ideal spherical knot forming state is difficult to realize in an actual bone canal, the knot forming effect is poor, the full-suture anchor is low in fixing strength, and the phenomena of anchor loosening, anchor falling off and the like are easy to occur under a long-time alternating load.

In addition, the knotting-free of the existing full-suture anchor is mainly realized by the friction force of the suture passing through the anchor, the knot-free structure has lower strength, and once the anchor bears a larger alternating load, the knot preset in the implant is easy to slip off, so that the anchor can only be used for repairing soft tissues such as labrum and the like; in addition, the structure can not fix the suture lines from other implants, can only be fixed at a single point, can not realize bridging with other implants, and has limited application range.

Disclosure of Invention

The invention aims to provide a full-suture ship anchor-shaped knotting-free anchor system, which can solve the technical problems.

Embodiments of the present invention are implemented as follows:

The invention provides a full suture ship anchor-shaped knotting-free anchor system, which comprises a anchor body, an inserter and a wire arranging hook, wherein the inserter is arranged on the anchor body;

One end of the inserter passes through the wire arranging hook and then is connected with the nail body;

the nail body is a full suture anchor nail and comprises a fixing piece and a traction wire;

the fixing piece is used for positioning and fixing the suture, and the traction wire is used for traction of the suture and traction deformation of the fixing piece;

The fixing piece is of a U-shaped symmetrical structure, threading holes penetrating through the inside and the outside of the fixing piece are formed in the outer wall of the fixing piece, the traction wires start from one end of the fixing piece, respectively penetrate to the other end of the fixing piece in a reciprocating mode along two sides of the fixing piece, after one end of the traction wires is wound to form a prefabricated knot, two free ends of the traction wires penetrate back from the hollow inside of the fixing piece again, finally penetrate out from the entering end of the fixing piece, and therefore a final preoperative structure is formed.

In an alternative embodiment, the preoperative structure of the nail body is a U-shaped structure formed by bending a full suture structure, and the end part of the nail body is a higher-hardness end part structure.

In an alternative embodiment, the threading mode of the prefabricated knot is as follows:

When the traction wire is inserted into the inner side of the fixing piece for the second time, after a section of coil is reserved at one free end, the traction wire traverses the fixing piece from the line segment direction vertical to the outer side of the fixing piece, and penetrates back into the fixing piece after a section of line segment is formed on the opposite side, and penetrates through the middle of the two line segments in the fixing piece to form a prefabricated knot.

In an alternative embodiment, the inserter comprises a handle, an insertion rod, a knot-forming push button, and a withdrawal button;

One end of the handle is provided with a sliding groove penetrating through two sides, and the knotting push button is arranged on the handle in a sliding way through the sliding groove;

The backing button is arranged on the outer wall of the handle in a sliding manner, a guide groove is formed in the other end of the handle, and one end of the insertion rod is inserted into the guide groove and connected with the backing button.

In an alternative embodiment, the knotting push button comprises a push plate and a first connecting beam, wherein both ends of the first connecting beam are provided with the push plate, so that the knotting push button integrally forms an I-shaped structure;

The end part of the push plate is provided with a first wire clamping groove, and the first connecting beam is provided with a second wire clamping groove.

In an alternative embodiment, the withdrawal button comprises a withdrawal plate, a connection ring and a second connection beam;

The withdrawing plate is connected with the outer wall of the connecting ring through the connecting beam and is used for driving the connecting ring to slide in the handle;

The connecting ring is fixedly connected with the insertion rod.

In an alternative embodiment, a limit groove is arranged on the inserter, and the limit groove is communicated with the sliding groove;

The limiting groove is internally provided with a card, and the card can be inserted into the guiding groove and is used for limiting the withdrawal button and the insertion rod.

In an alternative embodiment, a tail cap is provided on the handle, the tail cap being provided at an end of the handle remote from the insertion rod for blocking the sliding groove.

In an alternative embodiment, a clamping hook is arranged on the handle, and the clamping hook is used for connecting the wire arranging hook.

In an alternative embodiment, the wire arranging hook comprises a guide rod, a connecting part and a coil fixing hook;

the guide rod is provided with a through hole for the insertion rod to pass through;

The connecting part is fixedly arranged at one end of the side wall of the guide rod and used for fixedly connecting the guide rod to the inserter;

The coil fixing hook is arranged on the side wall of the other end of the guide rod, and the opening direction of the coil fixing hook is the direction facing the connecting part.

The embodiment of the invention has the beneficial effects that:

The anchor is inserted through the positioning of the traction wire on the fixing piece and the rigid structures at the two ends of the fixing piece, so that the anchor with the full suture forms a ship anchor structure in the bone after being pulled by a doctor in operation. The inverted triangle structure and the two fluke structures of the ship anchor structure improve the grasping force of the full suture anchor in bones, and the friction force with bone walls is increased, so that the anti-pulling performance is good, the fixing strength is improved, the phenomena of anchor loosening, anchor falling off and the like are avoided, and the using effect of the anchor is improved. The suture forms a knot-free structure on the fixing piece, so that the knot-free structural strength is improved. The integral nail structure can realize bridging with other implants, and the application range is expanded.

In addition, the inserter matched with the ship anchor-shaped full-suture anchor is used for pulling the suture through the knot-forming push button, the pulling distance is fixed, the knot-forming effect of the anchor can be effectively controlled, and the situation that a suture cuts a surgeon can not occur.

The wire arranging hook is used for temporarily fixing the coil of the implant, and after the inserter is pulled out, the wire arranging hook can prevent the suture from twisting, winding and knotting in the operation, so that the carding work of the operator on scattered sutures is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a full suture boat anchor-shaped knotting-free anchor system provided by an embodiment of the present invention;

FIG. 2 is a schematic view of the preoperative structure of the shank of the full suture boat anchor-shaped knotting-free anchor system provided by the embodiment of the invention;

FIG. 3 is a diagram of a knotless structure in a bone of a full suture boat anchor knotless shank system provided in accordance with an embodiment of the present invention;

FIGS. 4 and 5 are wiring diagrams of the pull wire of the full suture boat anchor knotting-free anchor system provided by the embodiment of the invention on a fixture;

FIG. 6 is a schematic perspective view of an inserter for a full suture boat anchor tie-free anchor system according to an embodiment of the present invention;

FIG. 7 is a schematic perspective view of an inserter handle of a full suture boat anchor tie-free anchor system provided by an embodiment of the present invention;

FIG. 8 is a cross-sectional view of the inserter handle of the full suture boat anchor knotless anchor system provided in accordance with an embodiment of the present invention;

FIG. 9 is a schematic structural view of an inserter tail cap of a full suture boat anchor tie-free anchor system provided by an embodiment of the present invention;

FIG. 10 is a schematic perspective view of an inserter knotting push button of a full suture boat anchor knotting-free anchor system provided by an embodiment of the present invention;

FIG. 11 is a schematic perspective view of an inserter card of a full suture boat anchor tie-free anchor system provided by an embodiment of the present invention;

FIG. 12 is a schematic view of the inserter knob of the full suture boat anchor knotless anchor system provided by embodiments of the present invention;

FIG. 13 is a schematic structural view of an inserter card pin of a full suture boat anchor tie-free anchor system provided by an embodiment of the present invention;

FIG. 14 is a schematic perspective view of an inserter shaft for a full suture boat anchor tie-free anchor provided in accordance with an embodiment of the present invention;

FIG. 15 is an enlarged view of a portion of FIG. 14 at A;

Fig. 16 is a schematic perspective view of a wire arranging hook of a full-suture ship anchor-shaped knotting-free anchor system according to an embodiment of the present invention.

Icon: 1-a nail body; 1-1-fixing parts; 1-2-traction wire; 1-3-end structure; 1-4-tubular structures; 1-5-a first line segment; 1-6-a second line segment; 1-7-a third line segment;

2-an inserter; 2-1-handle; 2-2-sliding grooves; 2-3-sink; 2-4-second limit protrusions; 2-5-first limiting holes; 2-6-second limiting holes; 2-7-clamping hooks; 2-8-guide grooves; 2-9-a first clamping groove; 2-10-limit grooves;

3-a wire arranging hook; 3-1-guide bar; 3-2-linkage; 3-3-coil fixing hooks; 3-4-second clamping grooves; 3-5-through holes;

4-knot forming push button; 4-1-pushing plate; 4-2-a first anti-skid groove; 4-3-first connection beams; 4-4-a first limit bump; 4-5-a first wire clamping groove; 4-6-second wire clamping groove;

5-tail cap; 5-1-clamping buckle;

6-removing the button; 6-1-withdrawing the plate; 6-2-a second anti-skid groove; 6-3-second connection beams; a 6-4-connecting ring;

7-inserting a rod;

8-card; 8-1: the first clamping ear; 8-2: a slot hole;

9-guiding a bayonet; 9-1-guide ring; 9-2-sliding plate; 9-3-second bayonet catch.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present invention will be described in detail below with reference to fig. 1 to 16, and the following examples and features of the examples may be combined with each other without conflict.

The invention provides a full suture ship anchor-shaped knotting-free anchor system, which comprises a anchor body 1, an inserter 2 and a wire arranging hook 3; one end of the inserter 2 passes through the wire arranging hook 3 and is connected with the nail body 1; the nail body 1 comprises a fixing piece 1-1 and a traction wire 1-2; the fixing piece 1-1 is used for positioning and fixing the suture, and the traction wire is used for traction of the suture and traction deformation of the fixing piece; the fixing piece 1-1 is of a U-shaped symmetrical structure before operation, the traction wires start from the closed end of the fixing piece 1-1, are respectively inserted into the open ends along the two sides of the fixing piece 1-1 in a reciprocating mode, after one side of the traction wires is wound back to form a prefabricated knot, the two free ends of the traction wires 1-2 penetrate back from the hollow inside of the fixing piece 1-1 again, finally penetrate out from the inner side of the bottom end of the fixing piece 1-1, therefore a final preoperation structure is formed, and during operation, the traction wires draw the fixing piece 1-1 to be compressed and deformed to form a ship anchor-shaped structure.

In the embodiment, the nail body 1 of the full suture ship anchor-shaped knotting-free anchor system consists of a fixing piece 1-1 and a traction wire 1-2, wherein the fixing piece 1-1 is symmetrically folded in the width center line direction to form a U shape; the traction wire 1-2 is respectively inserted and penetrated in a reciprocating way along the two sides of the U-shaped fixing piece 1-1 from the bottom end of the U-shaped fixing piece 1-1, after one end of the traction wire is wound back to form a prefabricated knot, the two free ends are penetrated back again from the hollow inside of the fixing piece 1-1 and finally penetrated out from the inner side of the U-shaped bottom of the fixing piece 1-1, so that a final preoperative structure shown in fig. 2 is formed; in operation, the fixing piece 1-1 is contracted and deformed by pulling the pulling wire 1-2, and the whole full-suture anchor is in a ship anchor structure due to the limitation of the passing position of the pulling wire 1-2 on the fixing piece 1-1 and the higher hardness of the end structures 1-3 on the two sides of the fixing piece 1-1, as shown in fig. 3. The specific routing manner is shown in fig. 4 and 5. The fixing piece 1-1 and the traction wire 1-2 are made of the same material and are made of ultra-high molecular weight polyethylene.

In this embodiment, the prefabricated knot is formed by winding the traction wire 1-2 after penetrating from one end to the other end of one side of the U-shaped structure of the fixing member 1-1, so that a knot-free structure can be formed, and therefore, the knot-free structure is not formed by penetrating the traction wire through the fixing member, but a knot formed by combining the traction wire and the fixing member is formed after the traction wire penetrates through the fixing member and tightens the traction wire.

The specific implementation mode is as follows: after the traction wire 1-2 is wound on one side of the fixing piece for the third time, a section of coil is reserved at the free end of the traction wire 1-2, the traction wire passes through the front view surface of the fixing piece, the penetrating point is positioned at the middle upper position of the line segment, then the free end is wound back into the fixing piece again, and after the free end is penetrated, the free end of the traction wire 1-2 passes through the middle of the coil of the line segment, as shown in fig. 5.

In this embodiment, after threading of the traction wire 1-2 is completed, one end forms a ring structure, and is connected with the wire arranging hook 3, and the other end is connected with the inserter 2, and the traction wire 1-2 is driven to be pulled by the inserter 3, so that the traction wire 1-2 is completed to drive the fixing piece 1-1 to deform, and a ship anchor-shaped fixing structure is formed.

The existing full-suture anchor is limited by the inner wall of a bone canal in bone, cannot creep into a true sphere or an enlarged nodule as the theory, has poor knotting effect, and has small friction force with the inner wall of the bone canal, so that the fixation strength is low.

In the embodiment, on one hand, the traction wire 1-2 is inserted on the fixing piece, so that the knot forming direction of the fixing piece 1-1 is not a simple longitudinal direction any more, but can be contracted towards the middle lower part to form an inverted triangle; on the other hand, the hardened end structures 1-3 at both ends of the anchor 1-1 form "flukes", which achieve counter traction when the shank is pulled, enhancing the grip of the anchor in the bone. The inverted triangle shrinkage structure and the two fluke structures form a ship anchor-shaped full traction wire 1-2 anchor structure, the actual use situation of the anchor body 1 in a bone canal is fully considered, the friction force between the fixing piece 1-1 and the inner wall of the bone canal is effectively improved, and the fixing strength of an implant is improved.

The existing full-suture anchor or knotting-free anchor cannot be bridged with other fixing pieces, the fixing strength of the traction wire of the implant to soft tissues is low, the knot is higher than the bone surface to stimulate the soft tissues, and bad experience is brought to patients.

In this embodiment, the traction wire 1-2 is not used to pass through itself to form a knot-free structure, but the traction wire 1-2 is passed through the fixing member 1-1, and after the traction wire 1-2 is tightened, a knot for combining the traction wire 1-2 and the fixing member 1-1 is formed. The greater the pulling force of the pull wire 1-2, the greater the knot locking force, thereby preventing the free end of the pull wire 1-2 from sliding. In addition, the pull wire 1-2 can pull other implant sutures through the anchor 1-1 to achieve bridging. The preset traction wire 1-2 is buried in the fixing piece 1-1, after the traction wire 1-2 is tightened in operation, the friction force at the preset knot is increased, the sliding of the free end of the traction wire 1-2 is effectively prevented, the fixing effect of line pressing and knot tying is achieved, the knot is buried in a bone canal, the knot cannot excite soft tissues, and inflammation is avoided.

It should be noted that, in the present embodiment, the threading mode of the traction wire 1-2 is to return to the lower side of the fixing member 1-1 after being routed from the upper side of the fixing member 1-1, and then to be threaded out of the fixing member 1-1, but the threading mode of the traction wire 1-2 is not limited to this mode, and may be other threading modes, for example, the threading mode may also be to start from the upper side of the fixing member 1-1 to pass through the fixing member 1-1 to the lower side in a reciprocating manner, and then to return to the upper side of the fixing member 1-1 and then to be threaded out of the fixing member 1-1. That is, as long as the wiring manner of reciprocally penetrating the fixing member 1-1 can be formed, the starting wiring and the ending wiring on the fixing member 1-1 are both at the same end of the fixing member 1-1, thereby facilitating the shrinkage deformation of the fixing member 1-1 through the traction wire 1-2.

In this embodiment, hardening treatment is adopted at both ends of the fixing member to form a hard end structure 1-3, that is, the hardness of the end structure 1-3 is higher than that of the tubular structure 1-4, so that the tubular structure 1-4 can be deformed when the tubular structure 1-4 is extruded, and the tubular structure 1-4 is a hollow tubular braid with a diameter of 1.3-6 mm.

Specifically, in this embodiment, pull wire 1-2 is a #2 non-absorbable surgical pull wire 1-2.

In this embodiment, as shown in fig. 4 and fig. 5, the traction wire 1-2 is alternately and reciprocally inserted in three times of non-equidistant in and out of the fixing piece through the threading hole to form a full traction wire 1-2 anchoring preoperative structure, wherein the first line segment 1-5 is 3-4mm, preferably 3.5mm, the second line segment 1-6 is located on the inner side and is 2-3mm, preferably 2.6mm, and the third line segment 1-7 is located on the outer side and is 2-3mm, preferably 2.6mm.

In an alternative embodiment, inserter 2 includes handle 2-1, insertion rod 7, knot-forming push button 4, and withdrawal button 6; one end of the handle 2-1 is provided with a sliding groove 2-2 which penetrates through two sides, and the knot-forming push button 4 is arranged on the handle 2-1 in a sliding way through the sliding groove 2-2; the withdrawing button 6 is slidably arranged outside the handle 2-1, the other end of the handle 2-1 is provided with a guide groove 2-8, and one end of the insertion rod 7 is inserted into the guide groove 2-8 and is connected with the withdrawing button 6.

The inserter 2 consists of a handle 2-1, a knot push button 4, a withdrawal button 6 and an insertion rod 7, as shown in fig. 6.

The middle of one end of the handle 2-1 is provided with the sliding groove 2-2, so that the end of the handle 2-1 forms a U-shaped structure for guiding the knot-forming push button 4, the surface is provided with the sinking grooves 2-3, and two ends of the knot-forming push button 4 are respectively arranged in the two sinking grooves 2-3, so that the pulling action of the knot-forming push button 4 is easier to operate.

The front end of the handle 2-1 is provided with a bulb-shaped guide groove 2-8 for guiding the insertion rod 7 and the withdrawal button 6, the inserter 2 is provided with a rectangular limit groove 2-10 for mounting the card 8, when the inserter needs to be disassembled, the limit groove 2-10 is communicated with the guide groove 2-8, two sides of the limit groove 2-10 are respectively provided with two rectangular first limit holes 2-5 for limiting the card 8, as shown in fig. 7 and 8.

As shown in fig. 11, the card 8 is a sheet with a thickness of 2mm, and has first lugs 8-1 on both sides for connecting the handle 2-1, and is capable of limiting the withdrawal button 6 and the insertion rod 7, and a bulb-shaped slot 8-2 is provided in the middle of the card 8 for passing the withdrawal button 6 and the insertion rod 7.

Before operation, the first clamping lug 8-1 of the clamping piece 8 is arranged in the first limiting hole 2-5 on the outer side to block the insertion rod 7 and the withdrawal button 6, so that the insertion rod 7 and the withdrawal button 6 cannot move; when the inserter needs to be disassembled, the card 8 is pressed, so that the slotted hole 8-2 is communicated with the guide groove 2-8, and the withdrawing button 6 drives the insertion rod 7 to move towards the handle end in the through groove, so that the handle 2-1 is separated from the insertion rod 7 and the wire arranging hook 3.

The rear end of the insertion rod 7 is provided with two shallow grooves, plays a role in increasing the connection strength when being integrally molded with the withdrawal button 6, is flat near the front end, gives off space when the anchor is implanted, and is provided with a U-shaped groove at the front end for fixing the implant, as shown in fig. 14 and 15.

In an alternative embodiment, the knotting push button 4 comprises a push plate 4-1 and a first connecting beam 4-3, wherein the push plate 4-1 is arranged at two ends of the first connecting beam 4-3 to form an I-shaped structure; the end part of the push plate 4-1 is provided with a first wire clamping groove 4-5, and the first connecting beam 4-3 is provided with a second wire clamping groove 4-6.

In this embodiment, two ends of the knotting push button 4 are respectively disposed in two sinking grooves 2-3 on two sides of the handle 2-1, a first connecting beam 4-3 in the middle is disposed in the sliding groove 2-2, so that the two push plates 4-1 are connected into a whole, and a certain limit is formed on the two push plates 4-1, so that the push plates 4-1 can only slide in the sliding groove 2-2 and cannot be separated from the sliding groove 2-2.

Specifically, in this embodiment, the outer surface of the push plate 4-1 is provided with the first anti-slip groove 4-2, the middle is provided with the first V-shaped wire clamping groove 4-5 for fixing the free ends of the traction wires 1-2, the side parts of the two ends of the connecting beam are provided with four V-shaped second wire clamping grooves 4-6, the traction wires 1-2 of the implant are wound on the second wire clamping grooves during installation, and when the traction wires 1-2 are pulled, the traction wires 1-2 are firmly clamped by the second wire clamping grooves 4-6 to prevent sliding.

More specifically, in this embodiment, four triangular first limiting protrusions 4-4 are disposed on the side wall of the first connecting beam 4-3, and are clamped into the sink 2-3 of the handle 2-1 during installation, and four triangular second limiting protrusions 2-4 are also disposed on the side wall of the sink 2-3, so that the cooperation of the first limiting protrusions 4-4 and the second limiting protrusions 2-4 can play a role in positioning the knotting push button 4; meanwhile, when the knot-forming push button 4 is pushed, the cooperation of the first limit protrusion 4-4 and the second limit protrusion 2-4 gives a feedback of pushing-in and pushing-out to the user, as shown in fig. 7 and 10.

In an alternative embodiment, the withdrawal button 6 comprises a withdrawal plate 6-1, a connection ring 6-4 and a second connection beam 6-3; the withdrawing plate 6-1 is connected with the outer wall of the connecting ring 6-4 through a connecting beam; the connecting ring 6-4 is fixedly connected with the insertion rod 7.

In the embodiment, the outer side surface of the ejector plate 6-1 is provided with a strip-shaped second anti-skid groove 6-2, which plays an anti-skid role. The side wall of the ejector plate 6-1 is fixedly connected with the connecting ring 6-4 through the second connecting beam 6-3, as shown in fig. 12.

During processing, the insertion rod 7 and the connecting ring 6-4 are connected into a whole through an injection molding process, so that the insertion rod and the connecting ring can move linearly under the drive of the withdrawing plate 6-1.

In an alternative embodiment, the inserter 2 is further provided with a guiding bayonet 9, the guiding bayonet 9 comprising a guiding ring 9-1 and a second bayonet 9-3; the guide ring 9-1 is slidably arranged in the guide groove 2-8, the insertion rod is slidably arranged in the guide ring 9-1, and the second clamping lug 9-3 is used for being clamped with the side wall of the guide groove 2-8.

In this embodiment, two sides of the bulb-shaped guide groove 2-8 near the front end are respectively provided with a second limiting hole 2-6 with rectangular holes for being matched with the second clamping lugs 9-3 to realize the positioning of the guide clamping pins 9 on the handle 2-1.

Specifically, as shown in fig. 13, in the present embodiment, the second limiting hole 2-6 is provided on a planar side wall of the open end of the guide groove 2-8, the sliding plate 9-2 is provided on the outer wall of the guide ring 9-1, and the second engaging lugs 9-3 are provided on opposite sides of the sliding plate 9-2.

In an alternative embodiment, a tail cap 5 is provided on the handle 2-1, the tail cap 5 being provided at the end of the handle 2-1 remote from the insertion rod 7 for blocking the sliding channel 2-2.

After the sliding groove 2-2 is plugged by the tail cap 5, the knot-forming push button 4 is prevented from being separated from the sliding groove 2-2.

In this embodiment, as shown in fig. 9, a buckle 5-1 is provided at the front end of the tail cap 5 for connection with the handle 2-1; the rear end of the handle 2-1 is provided with two L-shaped first clamping grooves 2-9 for forming clamping connection after the buckle 5-1 of the tail cap 5 is inserted.

It should be noted that, the connection mode between the tail cap 5 and the handle 2-1 may be a clamping connection, but is not limited to a clamping connection, and may be other fixed connection modes, such as a screw connection, so long as the tail cap 5 and the handle 2-1 can be fixedly connected, so as to achieve the purpose of plugging the sliding groove 2-2.

In an alternative embodiment, a clamping hook 2-7 is arranged on the handle 2-1, and the clamping hook 2-7 is used for connecting the wire arranging hook 3.

Specifically, in this embodiment, after the front end of the handle 2-1 is provided with the clamping hook 2-7, the clamping hook 2-7 is clamped with the end of the wire arranging hook 3, so that the wire arranging hook 3 is connected with the handle 2-1.

It should be noted that the connection manner between the handle 2-1 and the wire arranging hook 3 may be a clamping connection, but is not limited to a clamping connection, and may be other fixed connection manners, as long as the fixed connection between the handle 2-1 and the wire arranging hook 3 can be realized.

In an alternative embodiment, as shown in fig. 16, the wire arranging hook 3 includes a guide bar 3-1, a connecting portion 3-2, and a coil fixing hook 3-3; the guide rod 3-1 is provided with a through hole 3-5 for the insertion rod 7 to pass through; the connecting part 3-2 is fixedly arranged at one end of the side wall of the guide rod 3-1 and is used for fixedly connecting the guide rod 3-1 to the inserter 2; the coil fixing hook 3-3 is provided on a side wall of the other end of the guide rod 3-1, and the opening direction of the coil fixing hook 3-3 is a direction toward the connecting portion 3-2.

Specifically, in this embodiment, the guide rod 3-1 of the wire arranging hook 3 is of a hollow structure, a through hole 3-5 is formed in the guide rod, the guide rod is sleeved on the insertion rod 7 during installation, an L-shaped second clamping groove 3-4 is formed in the rear end of the guide rod, the second clamping groove 3-4 is clamped with the clamping hook 2-7 and used for connecting the handle 2-1, and a coil fixing hook 3-3 is arranged at the front end of the guide rod and used for fixing a coil of an implant.

In the embodiment, the wire arranging hook 3 is adopted to temporarily fix the coil of the implant, after the inserter 2 is pulled out, the wire arranging hook 3 can prevent the traction wire 1-2 from twisting, winding and knotting during operation, reduce the carding work of the scattered traction wire 1-2 by operators, and the wire arranging hook 3 is connected with the handle 2-1 through the clamping hook 2-7, so that the operation is simple.

The surgical method of the invention specifically comprises the following steps: after the internal gang nail is implanted in the operation, the suture of the internal gang nail is pulled to the outside, one end of the traction wire 1-2 with a wire loop is taken down from one side of the handle 2-1, the suture of the internal gang nail passes through the wire loop of the traction wire 1-2, the traction wire 1-2 is pulled in sequence until the traction wire 1-2 of the internal gang nail completely passes through the fixing piece 1-1, then the inserter 2 is aligned to the appointed position outside the rotator cuff dead center, the rear end of the inserter 2 is knocked by a bone hammer, the inserter 2 is inserted into bone until the marking line is flush with the bone surface, the card 8 is pressed, the limit of the withdrawal button 6 is released, then the withdrawal button 6 is pushed backwards, the insertion rod 7 is pulled out of the bone track, the knot push button 4 is pushed backwards, the anchor is made to creep into a knot in the bone track, the bone track is firmly clamped, the two ends of the traction wire 1-2 are taken down from the handle 2-1, the clamping hook 2-7 of the handle 2-1 is pressed, the connection between the handle 2-1 and the suture hook 3 is released, the traction wire loop is pulled out, the suture is pulled, the internal gang nail is contracted, then the hook is pulled, the bone is pulled into the bone track, the bone is pulled and the bone suture is completely and the suture wound, the skin is completely and the suture wound, and the skin is completely and the wound.

After the traditional full-suture anchor inserter 2 implants an implant, an operator is required to manually pull the traction wire 1-2 to enable the anchor to form a knot, the traction force cannot be effectively controlled, if the traction force is too large, the fixing effect of the anchor is easily affected, and the traction wire 1-2 is easily cut for the operator.

The main theory of operation of this scheme is: the inner row nail suture is pulled through the fixing piece 1-1 through the traction wire 1-2 of the nail body 1, at the moment, bridging is achieved between the inner row nail and the nail body 1, after the nail body 1 is implanted into bone, the traction wire 1-2 is pulled to enable the fixing piece 1-1 to expand into a knot, the knot is combined with the end portion structure 1-3 to form a ship anchor shape, a bone canal is firmly clamped, reliable holding force is provided, finally the traction wire 1-2 is tightened, a coil is retracted into the bone canal, at the moment, the knot is preset to be locked, friction force at the junction of the traction wire 1-2 is increased, sliding of the traction wire 1-2 is prevented, locking effect of the traction wire 1-2 is achieved, and finally surplus traction wire 1-2 is cut off to achieve fixing.

Through the scheme, the static fixation strength performance comparison test is carried out on the full-suture ship anchor-shaped knotting-free anchor and other full-suture anchors, the knotting-free anchor is subjected to the static fixation strength performance comparison test under the same experimental conditions, and the test records are shown in the following table.

Table 1 table for test experiment record of fixed strength

According to static fixation strength tests (shown in Table 1), the fixation strength average value of the full-suture ship anchor-shaped knotting-free anchor is 258.2N, 45N higher than the fixation strength average value of the traditional full-suture anchor, and 108N higher than the fixation strength average value of the knotting-free anchor, so that the full-suture knotting-free anchor has obviously improved fixation strength performance compared with the prior art, and can meet the clinical use requirements.

The embodiment of the invention has the beneficial effects that:

The anchor is inserted through the positioning of the traction wire on the fixing piece and the rigid structures at the two ends of the fixing piece, so that the anchor with the full suture forms a ship anchor structure in the bone after being pulled by a doctor in operation. The inverted triangle structure and the two fluke structures of the ship anchor structure improve the gripping force of the anchor body in the bone, and the friction force between the anchor body and the bone wall is increased, so that the anti-pulling performance is good, the fixing strength is improved, the phenomena of anchor loosening, anchor falling off and the like are avoided, and the using effect of the anchor is improved. The suture forms a knot-free structure on the fixing piece, so that the knot-free structural strength is improved. The integral nail structure can realize bridging with other implants, and the application range is expanded.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The anchor system is characterized by comprising a nail body, an inserter and a wire arranging hook;

the fixing piece is used for positioning and fixing the suture, and the traction wire is used for traction of the suture and traction of the fixing piece;

The utility model discloses a ship anchor structure, including fixing part, pull wire, ship anchor structure, fixing part, compression set, ship anchor structure, pull wire, ship anchor structure, wherein the fixing part is the preoperative U type symmetrical structure, the pull wire is from the one end of U type fixing part begins, follows respectively the reciprocal interlude of fixing part both sides to the other end of fixing part to after one of them one end is rewound and is formed prefabricated knot, the two free ends of pull wire are worn back from the fixing part is inside again, finally follow the bottom inboard of fixing part is worn out, forms final preoperative structure from this, in the art, the pull wire pulls the fixing part takes place compression set, forms the ship anchor structure of postoperative.

2. The full-suture boat anchor-shaped knotting-free anchor system of claim 1, wherein the preoperative structure of the nail body is a U-shaped structure formed by bending a full-suture structure, and the end of the nail body is a higher-hardness end structure.

3. The full-suture boat anchor knot-free anchor system of claim 1 wherein the pre-knots are threaded in the following manner:

4. The full suture boat anchor knotless anchor system of claim 1 wherein the inserter comprises a handle, an insertion rod, a knot push button and a withdrawal button;

5. The full-suture boat anchor-shaped knotting-free anchor system of claim 4, wherein the knotting push button comprises a push plate and a first connecting beam, and both ends of the first connecting beam are provided with the push plate, so that the knotting push button integrally forms an I-shaped structure;

6. The full suture boat anchor knot-free anchor system of claim 4 wherein the withdrawal knob comprises a withdrawal plate, a connection ring, and a second connection beam;

The connecting ring is fixedly connected with the insertion rod.

7. The full suture boat anchor knot-free anchor system of claim 4 wherein the inserter is provided with a limit slot, the limit slot in communication with the sliding slot;

8. The full suture boat anchor knot-free anchor system of claim 4 wherein a tail cap is provided on the handle, the tail cap being provided at an end of the handle remote from the insertion rod for plugging the sliding channel.

9. The full suture boat anchor knot-free anchor system of claim 4 wherein a snap hook is provided on the handle for connecting the wire dress hook.

10. The full suture boat anchor knot-free anchor system of claim 4 wherein the wire dress hook comprises a guide bar, a connecting portion, and a coil securing hook;