Anchor with line and fixing device thereof

Abstract

The utility model belongs to the technical field of medical instruments, and particularly discloses an anchor with a thread and a fixing device of the anchor. The anchor with the line comprises an anchor body and a crimping part, external threads are arranged on the periphery of the anchor body, and a connecting hole is formed in the end face of one end of the anchor body in the axial direction of the anchor body. And the crimping piece is arranged in the connecting hole so as to be matched with the connecting groove to fix the suture. The suture strength and reliability of the suture can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a wire anchor and a fixing device thereof. Background Art

[0002] The wire anchor is mainly used for the repair and fixation of tendon ruptures and ligament injuries throughout the body. The wire anchor consists of a screw fixing part and a suture part connected to the screw. In actual use, the screw part needs to be anchored into the bone structure, and the soft tissue or bone structure on the opposite side that needs to be repaired is pulled to the bone structure where the screw part is anchored through the suture, thereby tightening and repairing the ligaments and tendons.

[0003] However, in actual use of the wire anchors of the related art, in some cases where the local soft tissue conditions are poor, the soft tissue with reduced strength sometimes cannot provide sufficient suture strength for the suture, resulting in tearing of the sutured part. Summary of the invention

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the utility model provides a thread anchor nail, which can improve the suture strength and reliability of the suture.

[0005] The embodiment of the utility model further provides a fixing device with a wire anchor.

[0006] The anchor with thread in the embodiment of the utility model comprises: an anchor body, the outer periphery of which has an external thread, and a connecting hole is arranged on the end surface of one end of the anchor body in the axial direction of the anchor body; and a crimping piece, which is arranged in the connecting hole to cooperate with the connecting hole to fix the suture.

[0007] In this embodiment, by providing an external thread on the outer periphery of the anchor body, the anchor body can be screwed into the body tissue and combined with the tissue, which is beneficial to improving the strength of the combination between the anchor body and the body tissue. The suture is fixed in the connecting hole of the anchor body by a crimping piece, so that the suture and the anchor body are reliably connected, thereby improving the suturing strength of the suture.

[0008] In this embodiment, a connecting groove is provided on the crest of the external thread.

[0009] In this embodiment, a plurality of the connecting grooves are provided, and the plurality of connecting grooves are arranged at intervals along the spiral extension direction of the external thread.

[0010] In this embodiment, the connecting hole is a threaded hole, the crimping piece is a top screw, and the crimping piece is threadedly connected in the connecting hole.

[0011] In this embodiment, a wire laying groove for accommodating the suture is provided on the side wall of the connecting hole, and the groove depth of the wire laying groove is greater than the thread height of the spiral wire in the threaded hole.

[0012] In this embodiment, a plurality of protrusions are arranged at intervals on one end of the crimping member facing the anchor body.

[0013] In this embodiment, a rounded corner is provided at one end of the protrusion facing away from the crimping piece.

[0014] A wire anchor fixing device is used to fix the above-mentioned wire anchor. The wire anchor fixing device includes a handle, a first joint and a second joint. The first joint and the second joint both have an installation state connected to the handle. The first joint is used to lock the anchor body in the installation state, and the second joint is used to lock the crimping piece in the installation state.

[0015] In this embodiment, the first joint includes: a first joint body, which is detachably connected to the handle; a plurality of inserts, which are evenly spaced apart at one end of the first joint body away from the handle, and a side wall of the head of the anchor body is provided with slots corresponding to the plurality of inserts.

[0016] In this embodiment, the second connector includes: a second connector body, which is detachably connected to the handle; a plug, which is arranged at an end of the second connector body away from the handle, and the end surface of the crimping piece away from the anchor body is provided with a socket matching the plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of a wire anchor according to an embodiment of the utility model.

[0018] Figure 2 It is a three-dimensional diagram of the anchor body according to an embodiment of the utility model.

[0019] Figure 3 The three-dimensional structure of the crimping part of the utility model embodiment Figure 1 .

[0020] Figure 4 The three-dimensional structure of the crimping part of the utility model embodiment Figure 2 .

[0021] Figure 5 yes Figure 4 Schematic diagram of the local enlarged structure at point I in the middle.

[0022] Figure 6 It is a stereoscopic diagram of the handle, the first joint and the anchor body of the embodiment of the utility model.

[0023] Figure 7 It is a stereoscopic diagram of the handle and the first joint of an embodiment of the utility model.

[0024] Figure 8 It is a stereoscopic diagram of the first joint of the embodiment of the utility model.

[0025] Fig. 9 It is a stereoscopic diagram of the handle, the second joint and the wire anchor according to an embodiment of the utility model.

[0026] Fig.10 It is a stereoscopic diagram of the handle and the second joint of an embodiment of the utility model.

[0027] Fig.11 It is a stereoscopic diagram of the second joint of the embodiment of the utility model.

[0028] Reference numerals:

[0029] 1. Anchor body; 11. External thread; 111. Connection groove; 12. Connection hole; 121. Wire release groove; 13. Slot; 14. Second card slot;

[0030] 2. Crimping piece; 21. Protrusion; 211. Chamfered corner; 22. Socket;

[0031] 3. Sutures;

[0032] 4. Handle; 41. Connector;

[0033] 5. first connector; 51. first connector body; 511. first clamping protrusion; 52. inserting strip; 521. second clamping protrusion;

[0034] 6. Second connector; 61. Second connector body; 611. Third latch; 62. Plug. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0036] In this embodiment, if Figure 1 and Figure 2 As shown, the anchor with thread includes an anchor body 1 and a crimping piece 2. The outer periphery of the anchor body 1 has an external thread 11. In the axial direction of the anchor body 1, a connecting hole 12 is provided on the end surface of one end of the anchor body 1. The crimping piece 2 is provided in the connecting hole 12 to cooperate with the connecting hole 12 to fix the suture 3.

[0037] Specifically, in the axial direction of the anchor body 1, the anchor body 1 includes a coupling section and an attacking section in sequence, the coupling section is a cylinder, and the attacking section is a cone. The attacking section is set as a cone, which can facilitate the implantation of the anchor body 1 into the body tissue. The coupling section is a cylinder. After the anchor body 1 is fixed in place, the anchor body 1 can be coupled to the body tissue through the coupling section. The connection hole 12 is set at one end of the coupling section away from the attacking section.

[0038] In this embodiment, by providing an external thread 11 on the outer periphery of the anchor body 1, the anchor body 1 can be screwed into the body tissue and combined with the body tissue, which is beneficial to improving the strength of the combination between the anchor body 1 and the body tissue. The suture 3 is fixed in the connecting hole 12 of the anchor body 1 by the crimping piece 2, so that the suture 3 is reliably connected to the anchor body 1, thereby improving the suturing strength of the suture 3.

[0039] In this embodiment, if Figure 2 As shown, a connecting groove 111 is provided on the crest of the external thread 11 .

[0040] It should be noted that the connection groove 111 may penetrate the crest of the external thread 11 or may not penetrate the crest of the connection groove 111 , and the form of the connection groove 111 may be set as needed, which is not limited here.

[0041] By providing the connection groove 111 on the crest of the external thread 11 , after the anchor body 1 is implanted in the body, the connection groove 111 can be combined with the body tissue, thereby improving the fixing strength of the anchor body 1 .

[0042] In this embodiment, a plurality of connecting grooves 111 are provided, and the plurality of connecting grooves 111 are arranged at intervals along the spiral extension direction of the external thread 11 .

[0043] For example, multiple connection grooves 111 are evenly spaced along the spiral extension direction of the external thread 11, which is conducive to evenly combining the anchor body 1 with the body tissue and improving the reliability of the connection. Of course, multiple connection grooves 111 may not be evenly distributed, and the distribution form of multiple connection grooves 111 is not used to limit the present invention.

[0044] It can be understood that by providing a plurality of connection grooves 111 , more body tissues can be combined with the anchor body 1 , which is beneficial to improving the connection strength between the anchor body 1 and the body tissues.

[0045] In this embodiment, if Figure 2 and Figure 3 As shown, the connecting hole 12 is a threaded hole, the crimping piece 2 is a top screw, and the crimping piece 2 is threadedly connected in the connecting hole 12 .

[0046] It can be understood that by setting the connection hole 12 as a threaded hole and setting the crimping piece 2 as a top screw, the crimping piece 2 and the anchor body 1 can be threadedly connected, making the connection of the crimping piece 2 more convenient and reliable.

[0047] In this embodiment, if Figure 2 As shown, the side wall of the connecting hole 12 is provided with a wire laying groove 121 for accommodating the suture 3, and the groove depth of the wire laying groove 121 is greater than the tooth height of the spiral wire in the threaded hole.

[0048] Specifically, at least one group of wire releasing grooves 121 is provided, and one group includes two wire releasing grooves 121. The two wire releasing grooves 121 in the same group are arranged opposite to each other. After the suture 3 is bent in the connecting hole 12, the two ends are led out one by one from the two wire releasing grooves 121 in the same group, and then the crimping piece 2 is crimped in the connecting hole 12. When the crimping piece 2 is pressed against the bottom of the connecting hole 12, the suture 3 can be fixed in the connecting hole 12.

[0049] By setting a wire release groove 121 on the side wall of the connecting hole 12, the two ends of the suture 3 in the connecting hole 12 can be placed in the wire release groove 121, so as to prevent the suture 3 from being scratched or squeezed off by the threads on the side wall of the crimping part 2 when the crimping part 2 is rotated to lock the crimping part 2.

[0050] In this embodiment, if Figure 4 and Figure 5 As shown, a plurality of protrusions 21 are arranged at intervals on one end of the crimping member 2 facing the anchor body 1 .

[0051] Specifically, a plurality of protrusions 21 are evenly spaced and arranged at one end of the anchor body 1 .

[0052] It is understandable that by providing a protrusion 21 at one end of the crimping member 2 facing the anchor body 1, after the crimping member 2 is placed into the connecting hole 12, the protrusion 21 can be pressed against the suture 3 to make the suture 3 more firmly connected.

[0053] In this embodiment, if Figure 5 As shown, one end of the protrusion 21 facing away from the crimping piece 2 is provided with a rounded corner 211 .

[0054] For example, the radius of the rounded corner 211 on the protrusion 21 is 0.05 mm to 0.1 mm. Specifically, the radius of the rounded corner 211 on the protrusion 21 can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm or 0.1 mm, etc. Of course, the size of the rounded corner 211 can be set according to the size of the protrusion 21, and the radius of the rounded corner 211 on the protrusion 21 is not used to limit the present invention.

[0055] It is understandable that by providing the rounded corner 211 on the protrusion 21, the position where the protrusion 21 and the suture 3 contact is an arc-shaped surface, so that the damage to the suture 3 can be reduced when the protrusion 21 contacts the suture 3.

[0056] like Figure 6 and Fig. 9 As shown, in this embodiment, a wire anchor fixing device is also provided, which is used to fix the above-mentioned wire anchor. The wire anchor fixing device includes a handle 4, a first joint 5 and a second joint 6. The first joint 5 and the second joint 6 both have an installation state connected to the handle 4. The first joint 5 is used to lock the anchor body 1 in the installation state, and the second joint 6 is used to lock the crimping part 2 in the installation state.

[0057] For example, the handle 4 may be T-shaped, which makes it convenient to operate the handle 4 .

[0058] The handle 4 has a connection end connected to the first joint 5 or the second joint 6 . The connection end of the handle 4 is provided with a connector 41 . The handle 4 and the first joint 5 or the second joint 6 are connected via the connector 41 .

[0059] It should be noted that when the anchor body 1 needs to be locked, the first joint 5 is connected to the handle 4, and the first joint 5 can be driven by the handle 4 to lock the anchor body 1. When the crimping part 2 needs to be locked, the second joint 6 is connected to the handle 4, and the crimping part 2 can be locked by driving the second joint 6 by the handle 4. The first joint 5 and the second joint 6 share a handle 4, which can save costs.

[0060] In this embodiment, if Figures 6 to 8 As shown, the first connector 5 includes a first connector body 51 and a plurality of inserting strips 52, and the first connector body 51 is detachably connected to the handle 4. The plurality of inserting strips 52 are evenly spaced and arranged at one end of the first connector body 51 away from the handle 4, and the side wall of the head of the anchor body 1 is provided with slots 13 corresponding to the plurality of inserting strips 52 one by one.

[0061] Specifically, the end of the first connector body 51 away from the inserting strip 52 is provided with a first clamping protrusion 511, the connector 41 is provided with an inserting interface, one end of the first connector body 51 is inserted into the inserting interface, the inserting interface is provided with a first clamping groove, and the first connector body 51 and the handle 4 are detachably connected by the clamping of the first clamping protrusion 511 and the first clamping groove. The structure of the first clamping groove is not described in detail here, as long as the first connector body 51 and the handle 4 can be detachably connected, and the first connector body 51 can be driven to rotate by driving the handle 4.

[0062] The inner wall of the slot 13 is provided with a second clamping groove 14, and the inserting strip 52 is provided with a second clamping protrusion 521. When the inserting strip 52 is inserted into the slot 13, the second clamping protrusion 521 is clamped into the second clamping groove 14. The first connector 5 is fixed to the anchor body 1 through the cooperation of the second clamping protrusion 521 and the second clamping groove 14, so that the self-holding function can be realized. In order to facilitate the second clamping protrusion 521 to enter into the second clamping groove 14 or to escape from the second clamping groove 14, the outer wall of the second clamping protrusion 521 is an arc surface, and the shape of the second clamping groove 14 matches the shape of the second clamping protrusion 521.

[0063] When the anchor body 1 needs to be locked, the first joint body 51 and the handle 4 are connected, and then the insertion strip 52 is inserted into the slot 13 on the anchor body 1 to be locked. By rotating the handle 4, the first joint body 51 can be driven to rotate, thereby driving the anchor body 1 to rotate, and then the anchor body 1 can be screwed into the body tissue.

[0064] In this embodiment, if Figures 9 to 11 As shown, the second connector 6 includes a second connector body 61 and a plug 62, and the second connector body 61 is detachably connected to the handle 4. The plug 62 is arranged at one end of the second connector body 61 away from the handle 4, and the end surface of the crimping member 2 away from the anchor body 1 is provided with a socket 22 matching the plug 62.

[0065] Specifically, a third latching protrusion 611 is provided at one end of the second connector body 61 away from the plug 62, and one end of the second connector body 61 is plugged into the plug interface. The second connector body 61 and the connector 41 are detachably connected by the third latching protrusion 611 and the first latching groove.

[0066] For example, the socket 22 is a plum blossom hole, and the shape of the plug 62 matches the shape of the socket 22. When the plug 62 is rotated and inserted into the socket 22, the crimping part 2 can be driven to rotate through the cooperation of the plug 62 and the socket 22, so that the crimping part 2 can be locked in the connecting hole 12.

[0067] When it is necessary to lock the crimping part 2, the second connecting body and the handle 4 are connected, and then the plug 62 is removed and inserted into the socket 22. The plug 62 is driven to rotate by rotating the handle 4, and the crimping part 2 is driven to rotate by the cooperation of the plug 62 and the socket 22, so that the crimping part 2 can be locked.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0069] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0070] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0072] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean 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 present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0073] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A wire anchor, characterized in that: include: An anchor body, the outer periphery of which has an external thread, and an end surface of one end of the anchor body is provided with a connecting hole in the axial direction of the anchor body; A crimping piece is disposed in the connecting hole to cooperate with the connecting hole to fix the suture.

2. The wire anchor according to claim 1, characterized in that: A connecting groove is arranged on the crest of the external thread.

3. The belt line anchor according to claim 2, characterized in that: There are a plurality of connecting grooves, and the plurality of connecting grooves are arranged at intervals along the spiral extension direction of the external thread.

4. The belt line anchor according to claim 1, characterized in that: The connecting hole is a threaded hole, the crimping piece is a top screw, and the crimping piece is threadedly connected in the connecting hole.

5. The belt line anchor according to claim 4, characterized in that: The side wall of the connecting hole is provided with a wire laying groove for accommodating the suture, and the groove depth of the wire laying groove is greater than the thread height of the spiral wire in the threaded hole.

6. The belt line anchor according to claim 1, characterized in that: A plurality of protrusions are arranged at intervals on one end of the crimping member facing the anchor body.

7. The belt line anchor according to claim 6, characterized in that: One end of the protrusion facing away from the crimping piece is provided with a rounded corner.

8. A belt line anchor fixing device, used for fixing the belt line anchor as claimed in any one of claims 1 to 7, characterized in that: The wire anchor fixing device includes a handle, a first joint and a second joint, wherein the first joint and the second joint both have an installation state connected to the handle, the first joint is used to lock the anchor body in the installation state, and the second joint is used to lock the crimping piece in the installation state.

9. The wire anchor fixing device according to claim 8, characterized in that: The first connector comprises: A first joint body, wherein the first joint body is detachably connected to the handle; A plurality of inserting strips are evenly spaced and arranged at one end of the first joint body away from the handle, and slots corresponding to the plurality of inserting strips are arranged on the side wall of the head of the anchor body.

10. The wire anchor fixing device according to claim 8, characterized in that: The second connector comprises: a second joint body, the second joint body being detachably connected to the handle; A plug is arranged at an end of the second joint body away from the handle, and an end surface of the crimping piece away from the anchor body is provided with a socket matching the plug.

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