CN214966100U

CN214966100U - Anchor with wire

Info

Publication number: CN214966100U
Application number: CN202120990220.9U
Authority: CN
Inventors: 孔庆俊; 黎建波; 王巨伟; 高腾
Original assignee: Beijing Deyidamei Medical Technology Co ltd
Current assignee: Beijing Deyidamei Medical Technology Co ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-12-03
Anticipated expiration: 2031-05-10

Abstract

The application relates to the technical field of medical instruments, in particular to a threaded anchor, which has the technical scheme that the threaded anchor comprises an anchor body and a threaded hole formed in the anchor body, wherein a main beam is arranged in the position close to the end surface in the threaded hole, and two ends of the main beam are connected with the wall of the threaded hole; one side of the main beam is connected with an auxiliary beam for supporting the suture line, and one end of the auxiliary beam, which is far away from the main beam, is connected with the wall of the threading hole; the main beam and the auxiliary beam are utilized to realize the connection between the suture and the anchor with the wire in the production process of the anchor with the wire; when two sutures need to be connected with the anchor with the thread in the operation process, a second suture is extended into the threading hole through the port of the threading hole and then is extended to the outside, so that the connection between the suture and the anchor with the thread can be realized; due to the design, the workload of connecting the plurality of suture lines and the anchor bolts with the suture lines is reduced, and the effect of conveniently connecting the anchor bolts with the suture lines is achieved.

Description

Anchor with wire

Technical Field

The application relates to the technical field of medical equipment, in particular to a suture anchor.

Background

When the soft tissue is repaired, a doctor brings the anchor with the suture into the bone surface through the anchor implanting device and fixes the anchor with the suture on the bone surface, so that the connection between the suture and the soft tissue is realized, and the fixation between the soft tissue and the bone is realized.

In the related technology, the anchor with the thread comprises a nail body, wherein a thread part is fixed on the outer surface of the nail body, the thread part is in a spiral shape, and a threading hole penetrating through the nail body is formed in the nail body along the direction of an axis; the anchor implantation device comprises a handle and a connecting rod, wherein the end surface of the nail body is provided with a connecting groove matched with the outer surface of the connecting rod; in the using process, the suture line extends into the bone from one end of the threading hole, extends out from the other end of the threading hole and extends to the outside, and then a doctor uses the anchor implantation device to bring the anchor into and fix the anchor on the bone surface, so that the soft tissue and the bone are fixed.

The plurality of suture lines can improve the connection strength of soft tissues and bones, and aiming at the related technical scheme, the inventor finds that: after the first suture is connected with the suture anchor, the suture anchor is a very small object with an outer diameter of 2.5mm-5mm, and the suture is a very thin and soft object with a diameter of 0.5mm-0.6mm, so that it is difficult for the operator to connect the plurality of sutures with the suture anchor.

SUMMERY OF THE UTILITY MODEL

To facilitate connection of a suture anchor to a plurality of sutures, a suture anchor is provided.

The application provides a take line anchor nail adopts following technical scheme:

a threaded anchor comprises an anchor body and a threading hole formed in the anchor body, wherein a main beam is arranged in the threading hole close to the end face, and two ends of the main beam are connected with the wall of the threading hole; one side of the main beam is connected with an auxiliary beam for supporting the suture line, and one end of the auxiliary beam, which is far away from the main beam, is connected with the wall of the threading hole.

By adopting the technical scheme, the connection between a suture and the anchor with the thread is realized in the production process of the anchor with the thread, the suture extends into the threading hole from the port of the threading hole, then the suture extends outwards from the area enclosed by the main beam, the auxiliary beam and the wall of the threading hole, then the suture is lapped on the auxiliary beam and extends into the threading hole from the other area enclosed by the main beam, the auxiliary beam and the wall of the threading hole, and finally the suture extends out from the port of the threading hole to the outside, thereby realizing the connection between the suture and the nail body; when two suture lines are required to be connected with the anchor with the thread in the operation process, the second suture line is only required to extend into the threading hole through the port of the threading hole and then extend to the outside, so that the connection between the suture lines and the anchor with the thread can be realized; due to the design, the workload of realizing connection of the multiple suture lines and the anchor with the wire is reduced, the effect of conveniently realizing connection of the anchor with the wire and the multiple suture lines is achieved, the operation efficiency is improved, and the pain of a patient is relieved.

Preferably, the nail body is sequentially divided into a first section, a second section and a third section along the length direction; the thread part comprises a first thread arranged on the outer peripheral surface of the first section and a second thread arranged on the outer peripheral surface of the second section, and the thread pitch of the first thread is smaller than that of the second thread.

Through adopting above-mentioned technical scheme, because take line anchor need pass through cortical bone and cancellous bone in proper order and go to the marrow intracavity, and then realize being connected with patient's bone, consequently the pitch of first screw thread is less than the pitch of second screw thread and can reduce the injury to patient's bone under the prerequisite that satisfies joint strength, further slows down patient's misery.

Preferably, the outer diameter of the third section is gradually reduced along the direction from the close to the far away from the second section, and the main beam and the auxiliary beam are arranged at the position of the third section far away from the end face of the second section.

By adopting the technical scheme, the outer diameter of the third section is gradually reduced, so that the third section can be conveniently inserted into the marrow cavity, and further the connection with the bone of a patient is realized.

Preferably, the end face of the first section, which is far away from the second section, is provided with a connecting groove for connecting the connecting rod.

By adopting the technical scheme, the connection groove is convenient for realizing the connection between the anchor implant device and the nail body, thereby being convenient for realizing the connection between the nail body and the bone of a patient.

Preferably, both end surfaces of the nail body are provided with rounded corners.

By adopting the technical scheme, the fillet formed by the two end faces of the nail body can reduce the possibility of cutting the bone of a patient at the edge part, and reduces the damage to the patient in the operation process.

Preferably, the outer edge of the threaded portion is provided with a rounded corner, and the front end of the threaded portion is conical.

Through adopting above-mentioned technical scheme, the front end of screw thread portion is the toper, and the resistance in the operation process has been reduced to the design of toper, has improved operation efficiency.

Preferably, the nail body is made of PEEK materials.

By adopting the technical scheme, the PEEK is a high polymer material and has good biocompatibility, wear resistance and stable chemical characteristics, so that the nail body is made of the PEEK material, and the pain of a patient is further relieved.

Preferably, the nail body is made of biodegradable materials.

By adopting the technical scheme, because the biodegradable material can realize the decomposition in the human body on the premise of meeting the connection strength, the nail body is made of the biodegradable material, so that the human body can absorb the nail body conveniently, and the foreign body sensation of a patient is slowed down.

In summary, the present application has the following technical effects:

1. the main beam and the auxiliary beam are arranged, so that the suture is connected with the anchor in the production process; when two sutures need to be connected with the anchor with the thread in the operation process, a second suture is extended into the threading hole through the port of the threading hole and then is extended to the outside, so that the connection between the suture and the anchor with the thread can be realized; the design reduces the workload of realizing the connection between the plurality of suture lines and the anchor with the wire, and achieves the effect of conveniently realizing the connection between the anchor with the wire and the plurality of suture lines;

2. the anchor with the wire needs to sequentially pass through the cortical bone and the cancellous bone and enter the bone marrow cavity, so that the connection with the bone of the patient is realized, the pitch of the first thread is smaller than that of the second thread, the damage to the bone of the patient can be reduced on the premise of meeting the connection strength, and the pain of the patient is further relieved;

3. the gradual reduction of the outer diameter of the second section to the third section facilitates the insertion of the third section into the bone marrow cavity, thereby achieving the connection with the bone of the patient.

Drawings

FIG. 1 is a schematic structural view of a suture anchor according to an embodiment of the present application;

FIG. 2 is a schematic view showing a structure of a coupling groove highlighted in an embodiment of the present application;

FIG. 3 is an elevation view of a suture anchor in an embodiment of the present application;

fig. 4 is an enlarged schematic view at a in fig. 1.

In the figure, 1, a nail body; 11. a first stage; 12. a second stage; 13. a third stage; 2. a threaded portion; 21. a first thread; 22. a second thread; 3. threading holes; 4. a main beam; 5. an auxiliary beam; 6. connecting grooves; 7. and (4) sewing.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The first embodiment is as follows:

referring to fig. 1 and 2, the application provides a suture anchor, which comprises an anchor body 1, wherein the anchor body 1 is made of PEEK material, and two end surfaces of the anchor body 1 are both provided with fillets; the nail body 1 is provided with a threading hole 3 along the axial direction, the threading hole 3 penetrates through the nail body 1, and a suture 7 is arranged in the threading hole 3; the outer peripheral surface of the nail body 1 is connected with a thread part 2, the thread part 2 is spiral, the outer edge of the thread part 2 is provided with a fillet, and the front end of the thread part 2 is conical; the nail body 1 and the thread part 2 are integrally formed; one side of the nail body 1 is provided with an anchor implantation device, the anchor implantation device comprises a handle and a connecting rod, the end surface of the nail body 1 is provided with a connecting groove 6 matched with the outer surface of the connecting rod, in the embodiment of the application, the cross section of the connecting groove 6 is square, and in other examples, the cross section of the connecting groove 6 can be regular polygon or quincunx.

When a patient needs to use the suture anchor, firstly, the suture 7 extends into the threading hole 3 from one end of the threading hole 3, secondly, extends out from the other end of the threading hole 3 and extends to the outside, then, an insertion hole for inserting the suture anchor is formed in the bone of the patient, then, the connecting rod is connected with the nail body 1, the nail body 1 and the suture 7 are rotated into the bone of the patient, and finally, the connection between the suture 7 and soft tissue is realized, so that the fixation between the soft tissue and the bone is realized; the arranged thread part 2 is convenient for smoothly inserting the nail body 1 into the bone of a patient, and the nail body 1 has good internal fixation strength and stability; the threading hole 3 is formed, so that the connection between the suture 7 and the nail body 1 is convenient to realize, and the suture 7 can be connected with the bone of a patient when the nail body 1 rotates to enter the bone of the patient, so that the fixation of soft tissues and the bone is realized; on the other hand, the nail body 1 is hollow, so that the material consumption is reduced; the connection groove 6 is arranged to facilitate the connection between the anchor implant and the nail body 1, thereby facilitating the connection between the nail body 1 and the bone of the patient; the two end surfaces of the nail body 1 and the outer edge of the thread part 2 are both provided with fillets, so that the possibility of cutting the bone of a patient by the edge part is reduced, and the injury to the patient in the operation process is reduced; the front end of the thread part 2 is conical, and the conical design reduces the resistance in the operation process and improves the operation efficiency; since the PEEK is a high polymer material and has good biocompatibility, wear resistance and stable chemical characteristics, the nail body 1 is made of the PEEK material, so that the pain of a patient is further relieved.

Referring to fig. 3 and 4, the nail body 1 is sequentially divided into a first section 11, a second section 12 and a third section 13 along the length direction, the outer diameter of the third section 13 gradually decreases along the direction from the close to the second section 12 to the far away from the second section, and the first section 11, the second section 12 and the third section 13 are integrally formed; the threaded part 2 comprises a first thread 21 fixed on the outer surface of the first section 11 and a second thread 22 fixed on the outer surface of the second section 12, and the thread pitches of the first thread 21 and the second thread 22 are different; the position that is close to the third section 13 and keeps away from 12 terminal surfaces of second section in through wires hole 3 is provided with horizontally girder 4, and the both ends of girder 4 all are with 3 pore wall fixed connection of through wires hole, and the central point of girder 4 puts and is fixed with horizontally auxiliary beam 5, and the one end that auxiliary beam 5 kept away from girder 4 is with 3 pore wall fixed connection of through wires hole.

The method comprises the steps that a suture 7 is connected with a suture anchor in the production process of the suture anchor, the suture 7 extends into a threading hole 3 from a port of a first section 11 by utilizing specific equipment, then the suture 7 extends outwards from an area defined by the wall of the main beam 4, the wall of the auxiliary beam 5 and the wall of the threading hole 3, then the suture 7 is lapped on the auxiliary beam 5 and extends into the threading hole 3 from another area defined by the wall of the main beam 4, the wall of the auxiliary beam 5 and the wall of the threading hole 3, and finally the suture 7 extends outwards from the port of the first section 11, so that the connection of the suture 7 and a nail body 1 is realized; after an operation is started, when the number of the suture lines needs to be increased so as to improve the connection strength, firstly, another suture line 7 with a required length extends into the threading hole 3 from a port of the first section 11, the suture line 7 extends outwards from an area enclosed by the main beam 4 and the hole wall of the threading hole 3 and extends to the outside, then the connecting rod is connected with the nail body 1, the nail body 1 and the suture line 7 rotate into a bone of a patient, and finally the connection between the suture line 7 and a soft tissue is realized, so that the fixation between the soft tissue and the bone is realized; the main beam 4 and the auxiliary beam 5 are convenient for connecting the suture lines 7 with the suture anchors in the production process of the suture anchors, so that the workload of connecting the plurality of suture lines 7 with the suture anchors is reduced, the connection of the suture lines 7 with the plurality of suture lines 7 is convenient to realize, the operation efficiency is improved, and the pain of a patient is relieved; the anchor with the wire needs to sequentially pass through the cortical bone and the cancellous bone and enter the bone marrow cavity to further realize the connection with the bone of the patient, so that the thread pitch of the first thread 21 is smaller than that of the second thread 22, the damage to the bone of the patient can be reduced on the premise of meeting the connection strength, and the pain of the patient is further relieved; the tapered outer diameter of the third section 13 facilitates insertion of the third section 13 into the bone marrow cavity for connection to a patient's bone.

To sum up, the application process of this application is: when the connection between the soft tissue and the bone is required to be realized by using the anchor with the thread, firstly, the main beam 4 and the auxiliary beam 5 are used for realizing the connection between one suture 7 and the anchor with the thread in the production process of the anchor with the thread, then, in the operation process, another suture 7 with the required length is extended into the threading hole 3 from the port of the first section 11, the suture 7 is extended outwards from the area enclosed by the hole walls of the main beam 4 and the threading hole 3 and is extended to the outside, then, the connecting rod is connected with the nail body 1, the nail body 1 and the suture 7 are rotated into the bone of a patient, and finally, the connection between the suture 7 and the soft tissue is realized, so that the fixation between the soft tissue and the bone is realized.

Example two:

referring to fig. 1, a nail body 1 is made of biodegradable materials, wherein the biodegradable materials comprise PLLA, PL-TMC and hydroxyapatite, the mixture ratio of the PLLA, the PL-TMC and the hydroxyapatite is that the PLLA is 99-50%, the PL-TMC is 1-50% and the hydroxyapatite is 0.01-10%; the molecular weight of PLLA is 50-75W, PL-TMC is a copolymer of PLA and PTMC, and the weight ratio of PLA: the molar content ratio of the PTMC is 70:30, and the particle size of the hydroxyapatite is 5 nm-20 nm; because biodegradable material can realize decomposing in human under the prerequisite that satisfies joint strength, consequently the nail body 1 adopts biodegradable material to make and is convenient for the human body to realize absorbing nail body 1, has slowed down patient's foreign body sensation.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. The utility model provides a take line anchor, includes threading hole (3) of seting up in the nail body (1) and the nail body (1), its characterized in that: a main beam (4) is arranged in the threading hole (3) close to the end face, and two ends of the main beam (4) are connected with the hole wall of the threading hole (3); one side of the main beam (4) is connected with an auxiliary beam (5) used for supporting the suture line (7), and one end, far away from the main beam (4), of the auxiliary beam (5) is connected with the hole wall of the threading hole (3).

2. The suture anchor of claim 1, wherein: the nail body (1) is sequentially divided into a first section (11), a second section (12) and a third section (13) along the length direction; the thread part (2) comprises a first thread (21) arranged on the outer peripheral surface of the first section (11) and a second thread (22) arranged on the outer peripheral surface of the second section (12), and the thread pitch of the first thread (21) is smaller than that of the second thread (22).

3. The suture anchor of claim 2, wherein: the outer diameter of the third section (13) is gradually reduced along the direction from the close to the far away from the second section (12), and the main beam (4) and the auxiliary beam (5) are arranged at the position of the third section (13) far away from the end face of the second section (12).

4. The suture anchor of claim 2, wherein: the end face of the first section (11) far away from the second section (12) is provided with a connecting groove (6) for connecting the connecting rod.

5. The suture anchor of claim 1, wherein: the two end faces of the nail body (1) are both provided with rounded corners.

6. The suture anchor of claim 1, wherein: the outer edge of the thread part (2) is provided with a fillet, and the front end of the thread part (2) is conical.

7. The suture anchor of claim 1, wherein: the nail body (1) is made of PEEK material.

8. The suture anchor of claim 1, wherein: the nail body (1) is made of biodegradable materials.