Anchor assembly with thread and surgical kit

Abstract

The utility model provides an anchor assembly with a thread and an operation suite, the anchor assembly with the thread comprises an anchor, a suture and an inserter, the suture is a folding suture, the open end of the folding suture is of a doubling woven structure, the folding suture penetrates through a thread passing hole of the anchor and is arranged in a secondary folding mode around a sliding column, and the insert is inserted into the anchor. The folding sewing thread is wound around the wire spool to be fixed to the handle after being folded for the second time, and the open end of the folding sewing thread after being folded for the second time is clamped and fixed in the fixing clamp. The suture in the anchor component with the suture and the surgical suite comprises the folding suture, the open end of the folding suture is of the doubling weaving structure, synchronous suture passing of the open end which is folded at a time is facilitated, the open end can be recovered by cutting the doubling weaving structure after surgical suture is completed, surgical knots such as Nice knots and MRH knots can be achieved conveniently, and the suture is convenient to use. The operation efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a wire anchor assembly and a surgical kit. Background Art

[0002] The rotator cuff consists of a group of muscles that surround the shoulder and tendons that attach the muscles to the humeral head. The tendons have an attachment area where they attach to the humerus. In rotator cuff injuries, it is common for part of the tendon attachment area to separate from the humerus. This type of injury is more common in laborers and athletes who have repetitive shoulder movements.

[0003] At present, in the existing repair technology for rotator cuff surface tendon avulsion injury, anchors are generally buried in the humerus, and the tendon is pulled and fixed to the expected position of the humerus by sutures passing through the anchors and the tendon tissue, so that the tendon can grow again and be fixed to the expected position of the humerus, thereby achieving the repair of tendon avulsion injury. Among them, in order to ensure the fixation effect, two or more groups of sutures are generally provided, and the multiple groups of sutures need to be fixed separately, and the fixation tension is basically completely controlled manually by the surgeon. The tension of each group of sutures is difficult to control to be consistent. Under the influence of this external force, it is easy to make the regeneration and healing effect of the tendons in different suture areas different, making the actual repair effect worse than the ideal effect. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a wire anchor assembly and a surgical kit to solve the problem in the prior art that the tension of the surgical suture is difficult to control and the actual surgical effect is inferior to the ideal effect.

[0005] The utility model provides a wire anchor assembly, comprising an anchor, a suture and an inserter, wherein:

[0006] A wire-passing hole is provided in the anchor, the wire-passing hole is led out from the cap end of the anchor, and a sliding column is provided at the bottom end of the wire-passing hole;

[0007] The suture is a folded suture, and the open end of the folded suture is a parallel line braided structure, the folded suture passes through the wire hole, and is folded twice around the sliding column;

[0008] The inserter includes a handle and an insertion rod extending from the handle, the end of the insertion rod is coaxially inserted into the wire hole of the anchor and fixedly matched in the circumferential direction, the handle is provided with a winding disk and a fixing clamp, the folded suture is fixed to the handle after being folded twice, and the open end of the folded suture after being folded twice is clamped and fixed in the fixing clamp.

[0009] Optionally, the wire-passing hole is a diamond-shaped hole, and the axial direction of the sliding column is parallel to a diagonal line of the diamond-shaped hole.

[0010] Optionally, the bottom end side wall of the anchor is further provided with an opening structure, the opening structure is connected to the wire hole, and the setting position of the opening structure is consistent with the setting of the sliding column, so that the sliding column is exposed in the opening structure.

[0011] Optionally, the opening structure is provided on both sides of the sliding column.

[0012] Optionally, the fixing clamp includes a nested and matched outer fixed sleeve and inner movable sleeve, and both are trumpet-shaped sleeves. The outer fixed sleeve and the inner movable sleeve are elastically contracted and pre-tightened to be connected. The outer fixed sleeve is a C-shaped sleeve to form a suture guide groove at the opening position, and the top of the inner movable sleeve also includes an extension plate extending laterally.

[0013] Optionally, at least one of the inner wall of the outer fixed sleeve and the outer wall of the inner movable sleeve is provided with a suture guide groove, and the depth of the suture guide groove gradually changes along the extension direction of the suture guide groove.

[0014] Optionally, two wire winding reels are provided on the handle.

[0015] The utility model also provides a surgical kit, which comprises the above-mentioned anchoring nail assembly with a wire and an auxiliary anchoring nail assembly with a wire. The suture in the auxiliary anchoring nail assembly is a traction single wire, and a wire loop is arranged at one end of the traction single wire.

[0016] Optionally, the number of the auxiliary belt-line anchor assemblies is at least greater than the number of the belt-line anchor assemblies.

[0017] The utility model provides a wire anchor assembly comprising an anchor, a suture and an inserter, wherein a wire passing hole is provided in the anchor, the wire passing hole is led out from the cap end of the anchor, and a sliding column is provided at the bottom end of the wire passing hole; the inserter comprises a handle and an insertion rod extending from the handle, the end of the insertion rod is coaxially inserted into the wire passing hole of the anchor and fixedly matched in the circumferential direction so that the anchor can be driven to rotate by the inserter, and a winding drum and a fixing clamp are provided on the handle, wherein the suture is a folded suture, and the open end of the folded suture is a parallel wire braiding structure, the folded suture passes through the wire passing hole and is folded twice around the sliding column, and after being folded twice, the folded suture is also fixed on the handle around the winding drum, and the open end of the folded suture after being folded twice is clamped and fixed in the fixing clamp. The suture in the wire anchor assembly provided by the utility model is a folded suture, and the open end of the folded suture is a parallel wire braided structure, which is convenient for synchronous threading of the open end folded in half. After completing the surgical wiring, the open end can be restored by cutting the parallel wire braided structure, which can facilitate the realization of surgical knots such as Nice knot and MRH knot, and can effectively improve the surgical efficiency.

[0018] The surgical kit provided by the utility model comprises the above-mentioned anchor assembly with wire and an auxiliary anchor assembly with wire. The suture in the auxiliary anchor assembly with wire is a traction single wire, and a wire loop is arranged at one end of the traction single wire. The folded suture can be pulled into the anchor of the auxiliary anchor assembly with wire by the traction single wire during surgery, so that all anchor fixed points can be linearly associated through a pair of folded suture lines. The tension consistency of the suture between the fixed points is high, which can effectively improve the positioning effect of the final suture on the tendon, improve the tendon healing effect, and thus improve the surgical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the assembly of the folded suture of the anchor assembly with a line in the utility model;

[0020] Figure 2 It is a schematic diagram of the knotting method of the folded suture of the belt line anchor assembly in the utility model;

[0021] Figure 3 It is a schematic diagram of assembling the looped suture of the auxiliary anchor assembly of the utility model;

[0022] Figure 4A It is a side view of the anchor in the belt line anchor assembly of the utility model;

[0023] Figure 4B It is a cross-sectional view of an anchor in a belt line anchor assembly of the utility model;

[0024] Figure 4C It is an end view of an anchor in the belt line anchor assembly of the utility model;

[0025] Figure 5 This is a schematic diagram of the overall structure of the belt line anchor assembly of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the inserter in the belt line anchor assembly of the utility model;

[0027] Figure 7 This is a schematic diagram of the suture wiring of the surgical kit in the utility model.

[0028] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] In order to solve the problem that the tension of surgical sutures in the prior art is difficult to control and the actual surgical effect is inferior to the ideal effect, the utility model provides a wire anchor assembly, which includes an anchor, a suture and an inserter, wherein a wire passing hole is provided in the anchor, the wire passing hole is led out by the cap end of the anchor, and a sliding column is provided at the bottom end of the wire passing hole; the inserter includes a handle and an insertion rod extended from the handle, the end of the insertion rod is coaxially inserted into the wire passing hole of the anchor and fixedly matched in the circumferential direction so that the anchor can be driven to rotate by the inserter, and a winding drum and a fixing clamp are provided on the handle, wherein the suture is a folded suture, and the open end of the folded suture is a parallel wire braided structure, the folded suture passes through the wire passing hole and is folded twice around the sliding column, and the folded suture is also fixed on the handle after being folded twice, and the open end of the folded suture after being folded twice is clamped and fixed in the fixing clamp. Among them, the suture in the wire anchor assembly is a folded suture, and the open end of the folded suture is a parallel wire braided structure, which is convenient for synchronous threading of the open end folded in half. After completing the surgical wiring, the open end can be restored by cutting the parallel wire braided structure, which can facilitate the realization of surgical knots such as Nice knot and MRH knot, and can effectively improve surgical efficiency and surgical results.

[0033] like Figure 1 and Figure 2 As shown, the folded suture 101 is folded again relative to the anchor 10, and the folded end (end b) and the open end (end a) are led out simultaneously, a live line knot is preset at the end b, and the end a passes through the live line knot and is cut open, and the end a is restored to a double line again. The double lines are pulled separately, and the live line knot can be pushed forward and tightened. When the tension is appropriate, multiple single knots are tied at the end a to fix the live line knot, and fixation can be achieved. Specifically, surgical knots with better fixation effects such as Nice knots and MRH knots can also be used.

[0034] The utility model also provides a surgical kit, which includes the above-mentioned anchor assembly with wire and an auxiliary anchor assembly with wire, such as Figure 3 As shown, the suture in the auxiliary belt-wire anchor assembly is a traction single line 102, and a wire loop is provided at one end of the traction single line 102. The traction single line 102 can be used to pull the folded suture 101 into the anchor of the auxiliary belt-wire anchor assembly during surgery, so that all anchor fixed points can be linearly associated through a pair of folded suture lines 101. The tension consistency of the sutures between the fixed points is high, which can effectively improve the positioning effect of the final suture on the tendon, improve the tendon healing effect, and thus improve the surgical effect.

[0035] For the convenience of production, in this embodiment, the main difference between the belt-wire anchor assembly and the auxiliary belt-wire anchor assembly lies in the folded suture and the traction single wire provided therein, while the structures of the anchor and the inserter are basically the same.

[0036] The specific structure of the anchor 10 is as follows Figure 4A , Figure 4B and Figure 4C As shown, the anchor 10 is provided with a wire hole 11, which is led out from the cap end of the anchor, and a slide post 12 is provided at the bottom end of the wire hole 11, and the folded suture 101 passes through the wire hole 11, and is folded twice around the slide post 12 and then led out of the wire hole 11, forming Figure 1 The wiring structure shown.

[0037] To facilitate the inserter to drive the anchor 10, in this embodiment, the thread hole 11 is a diamond hole, and the axial direction of the sliding column 12 is parallel to a diagonal line of the diamond hole. The thread hole can also be divided into two symmetrical triangular holes through the diagonal line, and the suture can be smoothly passed through the two triangular holes.

[0038] To facilitate threading, in this embodiment, the bottom side wall of the anchor 10 is also provided with an opening structure, which is connected to the threading hole 11, and the setting position of the opening structure is consistent with the setting of the slide post 12, so that the slide post 12 is exposed in the opening structure, which is convenient for using the opening structure as a threading transit, and facilitating the threading of the suture to the anchor. At the same time, the exposed setting of the slide post 12 can also facilitate the smoothness processing of the slide post 12 from the outside, improve the surface smoothness of the slide post 12, improve the smoothness of the suture movement, and improve the convenience of the operation of the suture traction adjustment during surgery. At the same time, it can be used to remove burrs on the surface of the slide post 12 to avoid damage to the suture and improve the reliability of the anchor assembly with thread.

[0039] In order to further improve the reprocessing reliability of the sliding column 12 , in the present embodiment, both sides of the sliding column 12 are provided with opening structures.

[0040] Figure 5 and Figure 6 The schematic diagram of the structure of the wire anchor assembly in the assembled state and the schematic diagram of the structure of the inserter are shown respectively. Figure 5 and Figure 6As shown, the inserter includes a handle 22 and an insertion rod 21 extending from the handle 22. The end of the insertion rod 21 is coaxially inserted into the wire hole of the anchor 10 and fixedly matched in the circumferential direction so that the anchor can be driven into the bone tissue by rotating the handle. A winding drum and a fixing clamp are provided on the handle. After the folded suture 101 is folded twice, it is also fixed on the handle by winding the winding drum, and the open ends (including end a and end b) of the folded suture after the second fold are clamped and fixed in the fixing clamp.

[0041] Grooves are set on the sides of the handle to form a high-friction surface to improve grip stability.

[0042] Furthermore, in order to facilitate the fixation and removal of sutures, in the present embodiment, the fixing clamp includes a nested and matched outer fixed sleeve 231 and an inner movable sleeve 232, and both are trumpet-shaped sleeves. The outer fixed sleeve 231 and the inner movable sleeve 232 are elastically contracted and pre-tightened to be connected. The outer fixed sleeve 231 is a C-shaped sleeve to form a suture guide groove at the opening position. The top of the inner movable sleeve 231 also includes an extension plate extending laterally, so that when the user holds the handle, the inner fixed sleeve 232 can be driven out of the outer fixed sleeve 231 by hooking the extension plate, thereby releasing the compression state between the inner wall of the outer fixed sleeve 231 and the outer wall of the inner movable sleeve 232, thereby facilitating the locking and unlocking of the sutures.

[0043] In order to further improve the fixing effect of the suture, in the present embodiment, at least one of the inner wall of the outer fixed sleeve 231 and the outer wall of the inner movable sleeve 232 is provided with a suture guide groove, and the depth of the suture guide groove gradually changes along the extension direction of the suture guide groove, which can provide guidance for the fixing position of the suture, and at the same time, the suture fixing position can be limited in the suture guide groove to avoid suture deviation, thereby improving the suture fixing effect.

[0044] The suture is pulled to the end of the handle, wound around the winding drum for initial fixation, and finally the open end is fixed with a fixing clip. In order to improve the winding fixation effect and reduce the risk of the suture accidentally unraveling during surgery due to insufficient fixing effect of the fixing clip, two winding drums are arranged on the handle, including a first winding drum 221 and a second winding drum 222, and the first winding drum 221 is closer to the end of the handle, that is, the suture is first wound around the first winding drum 221, and then fixed to the fixing clip after passing through the second winding drum 222. The size of the first winding drum 221 is smaller than that of the second winding drum 222, and its winding stroke in one circle is smaller and the number of winding coils is more, so the pre-fixing effect is better, and the wire can be repeatedly wound between the first winding drum 221 and the second winding drum 222 to balance the number of winding coils on the two winding drums and ensure the winding stroke at the same time.

[0045] And because the present application mainly uses a single folded suture to realize the wiring between various points, the suture is relatively long, and two winding drums are provided to increase the winding stroke, which facilitates the arrangement of the relatively long folded suture. Moreover, the single-turn strokes of the two winding drums are different, and by adjusting the distribution of the number of winding coils, different line lengths can be compatible.

[0046] In a specific example, the number of auxiliary wire anchor assemblies used in the operation is three times the number of wire anchor assemblies, such as Figure 7 As shown, the first anchor 10-1 corresponds to the belt anchor assembly corresponding to the crease line, and the three second anchors 10-2 correspond to the auxiliary belt anchor assembly. Each anchor is fixed to the bone tissue at one time, and then the required second anchor 10-2 (for example, the tendon tissue is made of Figure 7 The left side of the middle part is connected to the bone tissue from the right, then the open ends of the traction lines in the two second anchors on the left side can be selected to pass through the tendon tissue and position the tendon tissue to the target position. After that, it is only necessary to operate on the outside of the tendon tissue, fix the b end of the folded suture in the first anchor 10-1, and pass its a end through the wire loop of the traction line, pull the other end of the traction line, and the folded suture can be introduced into the second anchor 10-2, and lead out after being wrapped around the sliding column in the second anchor 10-2. After passing through three second anchors at a time according to the S-shaped routing, the led a end can be finally fixed with the b end using surgical knots such as Nice knot and MRH knot. There is only one final fixation surgical knot, which can be positioned in the middle of the four anchor points. At the four anchor points, there is no wire knot, which can avoid the compression of the wire knot on the wound of the tendon tissue, thereby improving the efficiency of tendon recovery and improving the surgical effect.

[0047] Among them, the final suture between the four anchors is a single folded suture with continuous force (forming a star-chain structure with multiple points of connection), which can ensure the consistency of tension at all parts of the suture, thereby ensuring that the force exerted on the tendon tissue in the area where the suture produces fixed restriction on the tendon tissue remains consistent, ensuring the consistency of the healing and recovery effects of various parts of the tendon tissue, and thus effectively improving the consistency between the actual recovery effect of the operation and the ideal effect, thereby improving the surgical effect.

[0048] According to the actual fixing points and suture routing requirements, the ratio of the number of auxiliary belt-wire anchor assemblies to the number of belt-wire anchor assemblies can be selected according to specific needs, and the number of auxiliary belt-wire anchor assemblies is at least greater than the number of belt-wire anchor assemblies to achieve the association of a single folded suture.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The above-mentioned embodiments only express several specific implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A wire anchor assembly, characterized in that: The invention comprises an anchor, a suture and an inserter, wherein: A wire-passing hole is provided in the anchor, the wire-passing hole is led out from the cap end of the anchor, and a sliding column is provided at the bottom end of the wire-passing hole; The suture is a folded suture, and the open end of the folded suture is a parallel line braided structure, the folded suture passes through the wire hole, and is folded twice around the sliding column; The inserter includes a handle and an insertion rod extending from the handle, the end of the insertion rod is coaxially inserted into the wire hole of the anchor and fixedly matched in the circumferential direction, the handle is provided with a winding disk and a fixing clamp, the folded suture is fixed to the handle after being folded twice, and the open end of the folded suture after being folded twice is clamped and fixed in the fixing clamp.

2. The wire anchor assembly according to claim 1, characterized in that: The wire-passing hole is a diamond-shaped hole, and the axial direction of the sliding column is parallel to a diagonal line of the diamond-shaped hole.

3. The wire anchor assembly according to claim 1, characterized in that: The bottom end side wall of the anchor is also provided with an opening structure, the opening structure is connected to the wire-passing hole, and the setting position of the opening structure is consistent with the setting of the sliding column, so that the sliding column is exposed in the opening structure.

4. The wire anchor assembly according to claim 3, characterized in that: The opening structure is disposed on both sides of the sliding column.

5. The belt line anchor assembly according to claim 1, characterized in that: The fixing clamp includes a nested and matched outer fixed sleeve and inner movable sleeve, both of which are trumpet-shaped sleeves. The outer fixed sleeve and the inner movable sleeve are elastically contracted and pre-tightened to be connected. The outer fixed sleeve is a C-shaped sleeve to form a suture guide groove at the opening position. The top end of the inner movable sleeve also includes an extension plate extending laterally.

6. The belt line anchor assembly according to claim 5, characterized in that: At least one of the inner wall of the outer fixed sleeve and the outer wall of the inner movable sleeve is provided with a suture guide groove, and the depth of the suture guide groove gradually changes along the extension direction of the suture guide groove.

7. The belt line anchor assembly according to claim 1, characterized in that: There are two wire winding reels arranged on the handle.

8. A surgical kit, characterized in that: It comprises the belt-wire anchor assembly according to any one of claims 1 to 7, and an auxiliary belt-wire anchor assembly, wherein the suture in the auxiliary belt-wire anchor assembly is a traction single wire, and a wire loop is arranged at one end of the traction single wire.

9. The surgical kit according to claim 8, characterized in that: The number of the auxiliary belt-line anchor assemblies is at least greater than the number of the belt-line anchor assemblies.

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