Anchor system for rotator cuff repair

Abstract

The invention discloses an anchor system for rotator cuff repair, which is characterized in that a first conveying device and a second conveying device corresponding to a first implant and a second implant respectively are arranged, and the first conveying device and the second conveying device are respectively provided with an open section, a containing section and a holding section from the far end to the near end, corresponding holes are formed in a target object through the open section, and the first implant and the second implant can be fixed to the corresponding holes in a threaded screwing-in mode and a conveying section driving-in mode respectively, so that the two ends of the tissue traction accessory are fixed to the target object. And the tissue traction piece is connected with the target tissue, so that the target tissue is attached to the target object. In the rotator cuff repairing process, an opening device is not needed, the part of the opening device is combined to the corresponding first conveying device and the second conveying device, the number of surgical instruments is reduced, surgical operation steps are reduced, and then the problems that an existing rotator cuff repairing anchor system is large in number of tools and complex in surgical process are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an anchor system for rotator cuff repair. Background Art

[0002] The rotator cuff is a group of tendon complexes wrapped around the humeral head, including the subscapularis tendon, supraspinatus tendon, infraspinatus tendon, and teres minor tendon. The rotator cuff plays an important role in maintaining shoulder joint stability and shoulder joint movement.

[0003] The incidence of partial rotator cuff tears in the general population is 13% to 37%, while in people over 60 years old, the incidence of complete rotator cuff tears is as high as 30.3%, of which supraspinatus tendon injuries account for more than 90%. According to the distance between the torn end of the rotator cuff and the attachment point of the humeral head, rotator cuff tears are divided into small tears (<1cm), medium tears (1-3cm), large tears (3-5cm) and giant tears (>5cm). For those who are ineffective with conservative treatment, arthroscopic rotator cuff repair is the clinical treatment of choice. At present, the surgical methods for rotator cuff tears are mainly divided into single-row suture and double-row suture. For small tears, the single-row suture method can achieve good surgical results; for large or giant tears, the double-row suture method is required to expand the suture area to achieve satisfactory results.

[0004] In response to this, Arthrex proposed the surgical technique of SutureBridge™ Double Row Rotator Cuff Repair. Its double row suture method uses screw-in anchors as the inner row of nails and driven anchors as the outer row of nails. Tools such as open cones are also used during the operation, making the operation process complicated. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an anchor system for rotator cuff repair, so as to solve the problem that the existing rotator cuff repair anchor system has many tools and a complicated surgical procedure.

[0006] To solve the above problems, the technical solution of the present invention is: An anchor system for rotator cuff repair of the present invention comprises: a first conveying device, the first conveying device comprising a first open section, a first accommodating section and a first gripping section arranged from a distal end to a proximal end; A first implant is configured to have a thread for screwing into a target object and to fix one end of the tissue traction attachment to the target object; and the first implant is configured to be arranged in the first receiving section, the first implant has an axial degree of freedom with the first receiving section, and the first implant and the first receiving section are limited in their relative rotational freedom in the circumferential direction; A second conveying device, the second conveying device comprising a second open section, a second accommodating section and a second gripping section arranged from the distal end to the proximal end, and a conveying section sleeved on the main section, wherein the freedom of axial movement of the conveying section relative to the second accommodating section is restricted; A second implant is configured to fix the other end of the tissue traction attachment to the target object; and the second implant is configured to be arranged in the second receiving section; A tissue retractor is configured to at least partially penetrate the target tissue and to retract and attach the target tissue to the target object in an implanted state; The first open section is configured to form a first hole on the target object for screwing the first implant into; the second open section is configured to form a second hole on the target object for driving the second implant into; and the delivery section is configured to release the restriction on the freedom of axial movement relative to the second accommodating section in the implanted state and push the second implant into the second hole.

[0007] The anchor system for rotator cuff repair of the present invention, the first implant has a first outer ring surface and at least one through hole for the tissue traction attachment to pass through, and the first implant is provided with an axial through hole opened in the axial direction and forms a first inner ring surface, and the first implant is sleeved in the first accommodating section through the axial through hole; The first outer ring surface is provided with the thread, the first inner ring surface is provided with a counter-rotation portion, the first accommodation section is provided with a counter-rotation fitting portion, and the counter-rotation portion cooperates with the counter-rotation fitting portion to realize that the freedom of relative rotation of the first implant and the first accommodation section in the circumferential direction is limited.

[0008] In the anchor system for rotator cuff repair of the present invention, the thread comprises a first thread segment and a second thread segment arranged from the distal end to the proximal end; the outer diameter of the first thread segment gradually increases from the distal end to the proximal end.

[0009] In the anchor system for rotator cuff repair of the present invention, the anti-rotation portion is a plurality of anti-rotation ribs arranged at intervals along the circumferential direction on the first inner ring surface, and the anti-rotation fitting portion is a plurality of anti-rotation grooves correspondingly opened on the first accommodating section.

[0010] In the anchor system for rotator cuff repair of the present invention, a plurality of hollow channels are provided between the first outer ring surface and the first inner ring surface.

[0011] The anchor system for rotator cuff repair of the present invention, the first delivery device also includes a first main body section located between the first accommodating section and the first gripping section, and the first main body section and the first gripping section are provided with hollow channels for the tissue traction attachment to penetrate.

[0012] The anchor system for rotator cuff repair of the present invention has a plurality of annular step protrusions arranged axially on the outer ring surface of the second implant, the outer diameter of the annular step protrusions gradually increases from the distal end to the proximal end, and a slot for fixing the tissue traction attachment is provided at the distal end of the second implant.

[0013] The anchor system for rotator cuff repair of the present invention, the second delivery device also includes a limiter, the limiter is engaged between the second gripping section and the delivery section, and is used to limit the relative position between the delivery section and the second gripping section.

[0014] The anchor system for rotator cuff repair of the present invention, the second delivery device further comprises a second main body section located between the second accommodating section and the second gripping section; The delivery section includes a connected pushing sleeve section and a pushing execution section, the pushing sleeve section is sleeved and slidably connected to the second main body section, the distal end of the pushing sleeve section is configured to abut against the second implant, and the proximal end of the pushing execution section is configured to extend from the proximal end of the second holding section to cooperate to form a limiting space for accommodating the limiter.

[0015] In the anchor system for rotator cuff repair of the present invention, the second open section is provided with a guide hole for the tissue traction attachment to pass through.

[0016] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art: In one embodiment of the present invention, a first delivery device and a second delivery device are respectively provided corresponding to the first implant and the second implant, and the distal ends to the proximal ends of the first delivery device and the second delivery device are respectively provided as corresponding open sections, accommodating sections and gripping sections, and corresponding holes are opened on the target object by the open sections, and the first implant and the second implant can be respectively fixed to the corresponding holes by screwing in the thread and driving in the delivery sections, thereby fixing the two ends of the tissue traction attachment to the target object, and the target tissue can be attached to the target object by connecting the tissue traction attachment to the target tissue. In the process of rotator cuff repair, the anchor system of this embodiment does not need to use an opener, but instead merges part of the opener into the corresponding first delivery device and the second delivery device, thereby reducing the number of surgical instruments and the number of surgical operation steps, thereby solving the problem of the existing rotator cuff repair anchor system having many tools and complicated surgical procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a first delivery device and a first implant of an anchor system for rotator cuff repair of the present invention; Figure 2A schematic diagram of a first implant of an anchor system for rotator cuff repair according to the present invention; Figure 3 It is a detailed schematic diagram of a first delivery device of an anchor system for rotator cuff repair of the present invention; Figure 4 A schematic diagram of a second delivery device and a second implant of the anchor system for rotator cuff repair of the present invention; Figure 5 is a schematic diagram of a second implant of the anchor system for rotator cuff repair of the present invention; Figure 6 A schematic diagram of a delivery section of an anchor system for rotator cuff repair according to the present invention; Figure 7 It is a partial schematic diagram of a second delivery device of the anchor system for rotator cuff repair of the present invention; Figure 8 It is a schematic diagram of a second open section of the anchor system for rotator cuff repair of the present invention.

[0018] Explanation of the reference numerals: 1. first conveying device; 11. first open section; 12. first main section; 13. first gripping section; 14. first knocking part; 15. suture through hole; 16. anti-rotation groove; 2. first implant; 21. thread; 22. anti-rotation rib; 23. through hole; 3. second conveying device; 31. second open section; 311. guide perforation; 32. second main section; 33. second gripping section; 34. conveying section; 331. axial perforation; 341. pushing sleeve section; 342. front end cross bar; 343. middle extension rod; 344. rear end knocking plate; 35. limiter; 4. second implant; 41. slot; 5. tissue traction attachment. DETAILED DESCRIPTION

[0019] The following is a further detailed description of an anchor system for rotator cuff repair proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims.

[0020] Embodiment 1 See also Figures 1 to 8 In one embodiment, an anchor system for rotator cuff repair includes a first delivery device 1, a first implant 2, a second delivery device 3, a second implant 4 and a tissue distraction attachment 5.

[0021] The first delivery device 1 includes a first open section 11, a first receiving section, and a first gripping section 13 arranged from the distal end to the proximal end. The first implant 2 is configured to have a thread 21 for screwing into the target object and for fixing one end of the tissue retractor 5 to the target object. The first implant 2 is configured to be arranged in the first receiving section, and the first implant 2 has a degree of freedom in the axial direction with the first receiving section, and the degree of freedom of the first implant 2 to rotate relative to the first receiving section in the circumferential direction is limited.

[0022] The second delivery device 3 includes a second open section 31, a second accommodating section, a second gripping section 33, and a delivery section 34 sleeved on the main section, arranged from the distal end to the proximal end, and the delivery section 34 is configured to be limited in freedom of axial movement relative to the second accommodating section. The second implant 4 is configured to fix the other end of the tissue retractor 5 to the target object, and the second implant 4 is configured to be arranged in the second accommodating section.

[0023] The tissue retracting member 5 is configured to at least partially penetrate the target tissue and to pull and attach the target tissue to the target object in an implanted state.

[0024] The first open section 11 is configured to form a first hole on the target object for screwing the first implant 2 in. The second open section 31 is configured to form a second hole on the target object for driving the second implant 4 in. The delivery section 34 is configured to release the freedom restriction of axial movement relative to the second accommodation section in the implanted state, and push the second implant 4 into the second hole.

[0025] In this embodiment, a first delivery device 1 and a second delivery device 3 are respectively provided corresponding to the first implant 2 and the second implant 4, and the distal end to the proximal end of the first delivery device 1 and the second delivery device 3 are respectively provided as corresponding open sections, accommodating sections and holding sections, and corresponding holes are opened on the target object by the open sections, and the first implant 2 and the second implant 4 can be respectively fixed to the corresponding holes by screwing in the thread 21 and driving in the delivery section 34, thereby fixing the two ends of the tissue traction attachment 5 to the humeral head, and the connection between the tissue traction attachment 5 and the tendon can make the attached part of the tendon attached to the humeral head to achieve rotator cuff repair. In the process of rotator cuff repair, the anchor system of this embodiment does not need to use an opener, but merges part of the opener into the corresponding first delivery device 1 and the second delivery device 3, thereby reducing the number of surgical instruments and the number of surgical operation steps, thereby solving the problem of the existing rotator cuff repair anchor system having many tools and complicated surgical procedures.

[0026] The specific structure of the anchor system for rotator cuff repair of this embodiment is further described below: In this embodiment, the first implant 2 is a screw-in anchor, the first delivery device 1 is a first inserter, the second implant 4 is a driving anchor, the second delivery device 3 is a second inserter, and the tissue retractor 5 is a suture.

[0027] See also Figure 2 In this embodiment, the screw-in anchor has a first outer ring surface and at least one through hole 23 for passing the suture (the number of the through holes 23 can be two or more, specifically arranged at the tail end of the screw-in anchor), and the screw-in anchor is provided with an axial through hole opened along the axial direction and forms a first inner ring surface, and the screw-in anchor is sleeved in the first accommodation section through the axial through hole. Among them, the first outer ring surface is provided with a thread 21, the first inner ring surface is provided with a reverse rotation portion, and the first accommodation section is provided with a reverse rotation matching portion, and the reverse rotation portion and the reverse rotation matching portion cooperate to limit the freedom of relative rotation of the screw-in anchor and the first accommodation section in the circumferential direction.

[0028] Specifically, the thread 21 may include a first thread 21 segment and a second thread 21 segment arranged from the distal end to the proximal end, and the outer diameter of the first thread 21 segment gradually increases from the distal end to the proximal end, that is, the front end of the anchor is designed to be conical to facilitate screwing into the first hole (bone hole) opened on the humeral head.

[0029] The anti-rotation portion can specifically be a plurality of anti-rotation ribs 22 (the specific number can be three or four) arranged at intervals along the circumferential direction on the first inner ring surface. The anti-rotation ribs 22 can be arranged in the axial direction, or can be arranged to be inclined in the direction opposite to the spiral direction of the thread 21. The anti-rotation matching portion is a plurality of anti-rotation grooves 16 correspondingly opened on the first accommodating section, that is, when the anchor is screwed into the first accommodating section of the first inserter, the anti-rotation ribs 22 are respectively inserted into the corresponding anti-rotation grooves 16, thereby achieving axial freedom while limiting the circumferential freedom.

[0030] Furthermore, a plurality of hollow channels may be provided between the first outer ring surface and the first inner ring surface, so that the screwed-in anchor has a hollow structure, so as to facilitate the later growth of bone and enhance the fixation effect.

[0031] In other embodiments, the screw-in anchor can also be directly formed by the spaced threads 21, the inner circle formed by the threads 21 is the aforementioned first inner circle surface, the gap formed between the threads 21 is the aforementioned hollow channel, and the anti-rotation ribs 22 are axially fixed in the inner circle of the threads 21 to enhance the overall strength of the anchor.

[0032] In this embodiment, the first inserter also includes a first main body section 12 located between the first accommodating section and the first gripping section 13 (the first open section 11, the first accommodating section and the first main body section 12 are the rod of the first inserter, and the first open section 11 is the tip of the rod). The first main body section 12 and the first gripping section 13 are provided with hollow channels for inserting sutures. Specifically, a suture through hole 15 connected to the open hollow channel can be provided at the distal end of the first accommodating section or the first main body section 12, so that the suture screwed into the anchor can be inserted into the hollow channel. An extension hole connected to the hollow channel can be provided at the proximal end of the first gripping section 13, so that the suture in the hollow channel can be extended to facilitate the doctor's use of the suture during surgery. Furthermore, a first knocking portion 14 can be provided at the tail of the first gripping section 13, that is, the first gripping section 13 is used by the doctor to apply a screw-in torque when screwing in the anchor, and the first knocking portion 14 is used by the doctor to knock to position the first open section 11 before drilling a bone channel on the humeral head, and the first open section 11 is knocked to form a concave point on the bone surface to facilitate the screw-in operation.

[0033] See also Figure 5 In this embodiment, a plurality of annular step protrusions arranged along the axial direction are provided on the outer ring surface of the driving anchor, and the outer diameter of the annular step protrusion gradually increases from the distal end to the proximal end. This arrangement can facilitate the insertion into the bone canal, and a card slot 41 for fixing the suture is provided at the distal end of the driving anchor. The provision of the card slot 41 can omit the terminal part of the traditional driving anchor (the traditional driving anchor consists of an anchor body and a terminal), that is, only the nail body is provided, which simplifies the product structure and saves material costs.

[0034] In this embodiment, the second inserter also includes a limiter 35, which is engaged between the second holding section 33 and the conveying section 34 and is used to limit the relative position between the conveying section 34 and the second holding section 33. The function of the limiter 35 is to maintain the relative position between the conveying section 34 and the second holding section 33 when the second inserter is knocking to form the second hole, and to move out after the second hole is formed. At this time, the anchor nail can be driven into the second hole by knocking the conveying section 34.

[0035] In this embodiment, the second inserter further includes a second main body section 32 located between the second receiving section and the second gripping section 33 (the second open section 31, the second receiving section and the second main body section 32 are the rod of the second inserter, and the second open section 31 is the tip of the rod). Figure 6 The conveying section 34 includes a connected pushing sleeve section 341 and a pushing execution section. The pushing sleeve section 341 is sleeved and slidably connected to the second main body section 32. The distal end of the pushing sleeve section 341 is configured to abut against the driven anchor located in the second accommodating section, and the proximal end of the pushing execution section is configured to extend from the proximal end of the second holding section 33 to cooperate in forming a limiting space for accommodating the limiter 35.

[0036] The pushing execution section may specifically include a front cross bar 342, two intermediate extension rods 343 and a rear end knocking plate 344, wherein the front cross bar 342 is connected to the proximal end of the pushing sleeve section 341, and the first ends of the two intermediate extension rods 343 are respectively connected to the two ends of the front cross bar 342 in the lateral direction, and the intermediate extension rods 343 can be axially slidably connected to the second gripping section 33 (specifically, two corresponding axial through holes 331 can be opened on the second gripping section 33), and the second ends of the intermediate extension rods 343 respectively extend out of the proximal end of the second gripping section 33 and are connected to the rear end knocking plate 344, and the space between the proximal end of the second gripping section 33 and the rear end knocking plate 344 is the aforementioned limit space, and the limiter 35 can specifically be a limit block for inserting into the limit space.

[0037] See also Figure 8 Furthermore, a guide hole 311 is provided on the second open section 31 for passing the suture to fix the suture.

[0038] When the second inserter is opening the second hole, the doctor knocks on the rear end knocking plate 344, and the knocking force is transmitted to the second open section 31 through the limit block and the second gripping portion; after the second inserter knocks to a predetermined depth, the limit block is removed, and then the rear end knocking plate 344 is knocked, and the push sleeve section 341 pushes the anchor into the bone canal.

[0039] Application Example 1 This application example provides the steps for using the anchor system for rotator cuff repair of the first embodiment as follows: 1. One end of the tissue retracting attachment 5 passes through the first implant 2, and the first implant 2 is sleeved on the first receiving section of the first conveying device 1; 2. The tail end of the first delivery device 1 is struck, and a concave point is punched out by the first open section 11 thereon at the target position of the target object corresponding to the first implant 2, for operation when the thread 21 is screwed in; 3. Continue to knock the tail end of the first delivery device 1 until the first open section 11 is pushed into the target object, so that the first implant 2 fits the target object and establishes the first hole when the first implant 2 is screwed in; 4. Rotate the first gripping section 13 so that the thread 21 of the first implant 2 is screwed into the corresponding hole and fixed, so that the first implant 2 and the tissue retraction attachment 5 are implanted into the target object; 5. Pass the tissue retractor 5 through the target tissue and tie a knot to complete the first suturing step; 6. Position the other end of the tissue retractor 5 at the second open section 31 of the second conveying device 3, and sleeve the second implant 4 at the second receiving section of the second conveying device 3; 7. Tap the tail end of the second delivery device 3 to create a second hole at the target position of the target object corresponding to the second implant 4 through the second open section 31 thereon; 8. Release the axial movement freedom restriction of the delivery section 34 relative to the second accommodating section, tap the delivery section 34, and implant the second implant 4 into the corresponding hole. At this time, the other end of the tissue retractor 5 is fixed in the target object by the second implant 4, completing the second suturing step.

[0040] This application example further provides specific surgical steps for performing double-row suturing using the anchor system of the present application, as follows: 1. Knock the first knocking part 14 at the rear end of the first inserter to make a concave point near the humeral joint edge for positioning during the screw-in operation; 2. Continue to strike the first striking part 14 to push the first open section (tip) of the first inserter below the bone surface, so that the front end surface of the screw-in anchor is close to the bone surface, and a bone hole is established when the screw-in anchor is screwed in; 3. Grip the first gripping section 13 of the first inserter, screw the screw-in anchor in clockwise until the screw-in anchor is flush with the bone surface, and withdraw the first inserter. At this time, the screw-in anchor and the attached suture are implanted into the bone; 4. Using the same operation, implant the second screw-in anchor at the same level as the first screw-in anchor; 5. Pass the sutures attached to the two screw-in anchors through the rotator cuff tissue and tie a knot to complete the first suture step; 6. Lead the suture that passes through the rotator cuff tissue out from the guide hole 311 of the second inserter; 7. Knock the rear end knocking plate 344 of the tail end of the second inserter to create a bone hole for inserting the anchor at an angle below the implantation position of the screwed-in anchor; 8. Remove the limit block on the second inserter, continue to knock the rear end knocking plate 344, and implant the driven anchor into the bone until the driven anchor is flush with the bone surface. At this time, the suture passing through the guide perforation 311 is simultaneously squeezed into the bone hole; 9. Using the same operation, implant the second anchor at the same level as the first anchor to complete the second suturing step.

[0041] Then complete the surgical operation.

[0042] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. An anchor system for rotator cuff repair, characterized in that: include: a first conveying device, the first conveying device comprising a first open section, a first accommodating section and a first gripping section arranged from a distal end to a proximal end; A first implant is configured to have a thread for screwing into a target object and to fix one end of the tissue traction attachment to the target object; and the first implant is configured to be arranged in the first receiving section, the first implant has an axial degree of freedom with the first receiving section, and the first implant and the first receiving section are limited in their relative rotational freedom in the circumferential direction; A second conveying device, the second conveying device comprising a second open section, a second accommodating section and a second gripping section arranged from the distal end to the proximal end, and a conveying section sleeved on the main section, wherein the freedom of axial movement of the conveying section relative to the second accommodating section is restricted; a second implant configured to fix the other end of the tissue retraction attachment to the target object; and the second implant is configured to be arranged in the second receiving section; A tissue retractor is configured to at least partially penetrate the target tissue and to retract and attach the target tissue to the target object in an implanted state; wherein the first open section is configured to form a first hole on the target object for screwing the first implant into; The second open section is configured to form a second hole on the target object for inserting the second implant, and the delivery section is configured to release the freedom restriction of axial movement relative to the second accommodating section in the implanted state and push the second implant into the second hole.

2. The anchor system for rotator cuff repair according to claim 1, characterized in that: The first implant has a first outer ring surface and at least one through hole for the tissue retraction attachment to pass through, and the first implant is provided with an axial through hole opened in the axial direction and forms a first inner ring surface, and the first implant is sleeved in the first accommodating section through the axial through hole; The first outer ring surface is provided with the thread, the first inner ring surface is provided with a counter-rotation portion, the first accommodation section is provided with a counter-rotation fitting portion, and the counter-rotation portion cooperates with the counter-rotation fitting portion to realize that the freedom of relative rotation of the first implant and the first accommodation section in the circumferential direction is limited.

3. The anchor system for rotator cuff repair according to claim 2, characterized in that: The thread comprises a first thread segment and a second thread segment arranged from the distal end to the proximal end; the outer diameter of the first thread segment gradually increases from the distal end to the proximal end.

4. The anchor system for rotator cuff repair according to claim 2, characterized in that: The anti-rotation portion is a plurality of anti-rotation ribs arranged at intervals along the circumferential direction on the first inner ring surface, and the anti-rotation matching portion is a plurality of anti-rotation grooves correspondingly opened on the first accommodating section.

5. The anchor system for rotator cuff repair according to claim 2, characterized in that: A plurality of hollow channels are provided between the first outer ring surface and the first inner ring surface.

6. The anchor system for rotator cuff repair according to claim 1, characterized in that: The first conveying device further comprises a first main body section located between the first accommodating section and the first gripping section, wherein the first main body section and the first gripping section are provided with hollow channels for the tissue retraction attachment to penetrate.

7. The anchor system for rotator cuff repair according to claim 1, characterized in that: The outer ring surface of the second implant is provided with a plurality of annular step protrusions arranged along the axial direction, the outer diameter of the annular step protrusion increases gradually from the distal end to the proximal end, and the distal end of the second implant is provided with a groove for fixing the tissue distraction attachment.

8. The anchor system for rotator cuff repair according to claim 1, characterized in that: The second conveying device further includes a limiter, which is engaged between the second holding section and the conveying section and is used to limit the relative position between the conveying section and the second holding section.

9. The anchor system for rotator cuff repair according to claim 8, characterized in that: The second conveying device further includes a second main body section located between the second accommodating section and the second gripping section; The delivery section includes a connected pushing sleeve section and a pushing execution section, the pushing sleeve section is sleeved and slidably connected to the second main body section, the distal end of the pushing sleeve section is configured to abut against the second implant, and the proximal end of the pushing execution section is configured to extend from the proximal end of the second holding section to cooperate to form a limiting space for accommodating the limiter.

10. The anchor system for rotator cuff repair according to claim 1, characterized in that: The second open section is provided with a guide hole for the tissue traction attachment to pass through.

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