CN213430318U

CN213430318U - Medical stay cord locking knot

Info

Publication number: CN213430318U
Application number: CN202020619844.5U
Authority: CN
Inventors: 王少白
Original assignee: Shanghai Zhuoxin Medical Technology Co Ltd
Current assignee: Shanghai Zhuoxin Medical Technology Co Ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-06-15
Anticipated expiration: 2030-04-22

Abstract

A medical pull rope locking knot comprises an unclosed movable ring, wherein a sliding knot is arranged at an opening of the movable ring, and the sliding knot comprises a free end, a locking end and at least two locking rings. The free end is fixedly connected with one opening end of the movable ring, the locking end is fixedly connected with the other opening end of the movable ring through the two locking rings, and the free end movably penetrates through the two locking rings. Pulling the free end, wherein the free end can slide in the locking ring to realize a one-way adjusting function; and pulling the locking end or pulling the free end and the locking end simultaneously, and tightening the sliding knot and completing self-locking. The utility model provides a problem that medical stay cord locking knot locking function became invalid easily, it is fixed with inside implant to especially conveniently be applicable to the less human internal tissue of operating space and sew up.

Description

Medical stay cord locking knot

Technical Field

The utility model relates to a surgical repair field, in particular to medical stay cord locking knot.

Background

Knotting and securing of the string is often required in surgical repair procedures. Traditional surgery is performed under open-vision conditions, and often involves manual tying of knots by the surgeon. However, with the advancement of the technology, various minimally invasive surgeries, such as endoscopic surgeries, etc., are becoming increasingly common, which only require minimally invasive access to a predetermined site for treatment. In such procedures, if the string needs to be knotted or fixed, the string inside the patient body needs to be knotted through a small operation window and remotely operated outside the patient body. However, in the prior art, the stability of the locking effect of the locking knot of the medical pull rope is poor, and the medical pull rope is generally limited by the stress directions of the two branches of the movable ring. Particularly, when the two branches of the movable ring tend to the same direction, the locking function of the sliding knot is easily lost, thereby seriously affecting the operation.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a medical stay cord locking knot has stable locking function to solve the current poor technical problem of slidable locking knot locking function.

A medical pull rope locking knot comprises an unclosed movable ring, wherein a sliding knot is arranged at an opening of the movable ring, and the sliding knot comprises a free end, a locking end and at least two locking rings. The free end is fixedly connected with one opening end of the movable ring, and the locking end is fixedly connected with the other opening end of the movable ring through the two locking rings; the free end is movably penetrated through the two locking rings. The free end can slide in the locking ring by pulling the free end, so that a one-way adjusting function can be realized; the two locking rings can be tightened by pulling the locking end with a certain pulling force or pulling the free end and the locking end simultaneously, and the free end can be fixed in the two locking rings to realize the locking function. Especially by pulling the locking end further, a more secure locking can be achieved.

Preferably, the two locking rings are symmetrically arranged, a first end of the first locking ring is fixedly connected with the movable ring, and a second end of the first locking ring is fixedly connected with a second end of the second locking ring; the first end of the second locking ring is fixedly connected with the locking end; the second end of the first locking ring is pressed on the first end of the first locking ring; the second end of the second locking ring is pressed on the first end of the second locking ring; the outer end part of the free end sequentially penetrates through the first locking ring and the second locking ring.

The fixed connection is integrated.

Preferably, the movable ring is fixedly connected to the position to be repaired.

Preferably, the device further comprises an anchoring device, two ends of the movable ring respectively penetrate through the anchoring device, and the sliding knot is located on the outer side of the anchoring device.

Preferably, the anchoring device is a metallic biocompatible material or a non-metallic biocompatible material.

Preferably, the anchoring device is a plate-like anchoring device.

Preferably, the plate-shaped anchoring device is provided with two holes, and two ends of the movable ring respectively penetrate through one hole.

Preferably, the anchoring means is a rivet structure.

Preferably, the anchoring device is provided with a barb structure.

Preferably, the pull rope locking knot is provided with a barb structure.

Compared with the prior art, the utility model discloses there are following technological effect:

1. the utility model provides a pair of medical stay cord locking knot has stable locking function, has solved the current poor technical problem of slidable locking knot locking function.

2. Adopt the utility model discloses a medical stay cord locking knot sets up the barb structure on cotton rope or anchoring device, helps further strengthening one-way locking effect.

3. Adopt the utility model discloses a medical stay cord locking knot need not direct contact knot or ring, only can accomplish the locking of tightening up and knot of ring by two free tip, and convenient and fast, consequently, the less human internal tissue of operating space such as wicresoft, chamber mirror sews up and the fixed operation occasion of internal implant is particularly conveniently applicable to.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts. In the drawings:

fig. 1 is a schematic structural view of a knot in a sliding state according to a preferred embodiment of the present invention;

fig. 2 is a schematic structural view of a knot in a locked state according to a preferred embodiment of the present invention;

fig. 3 is a schematic structural view of a knot provided with a metal plate for ligament repair according to a preferred embodiment of the present invention;

fig. 4 is a schematic plan view of a metal plate according to a preferred embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 4, and this embodiment is implemented on the premise of the technical solution of the present invention, and a detailed embodiment and a specific operation process are given, but the present invention is not limited to the following embodiments, and those skilled in the art can modify and color the medical pull rope locking knot without changing the spirit and content of the present invention.

Example 1

Referring to fig. 1 and 2, a medical pull rope locking knot has a main structure of a unidirectional adjustable locking knot structure formed by a string. The sliding knot type movable ring comprises a non-closed movable ring 1, wherein a sliding knot 2 is arranged at an opening of the movable ring 1, and the sliding knot 2 comprises a free end 21, a locking end 22 and at least two

locking rings

23 and 24. The free end 21 is fixedly connected with one opening end of the movable ring 1, the locking end 22 is fixedly connected with the other opening end of the movable ring 1 through two

locking rings

23 and 24, and the free end 21 movably penetrates through the two

locking rings

23 and 24. The free end 21 can slide in the two

locking rings

23 and 24 by pulling the free end 21, so that unidirectional adjustment is realized; the two

locking rings

23 and 24 can be tightened by pulling the locking end 22 with a certain pulling force or by pulling the free end 21 and the locking end 22 simultaneously, forming the locking knot 3, the free end 21 being fixable in the two

locking rings

31 and 32. Further tightening of the locking end 22 results in a more secure lock.

The two

locking rings

23 and 24 are symmetrically arranged, a first end 231 of the first locking ring 23 is fixedly connected with the movable ring 1, and a second end 232 is fixedly connected with a second end 242 of the second locking ring 24; the first end 241 of the second locking ring 24 is fixedly connected with the locking end 22; the second end 232 of the first locking ring 23 is pressed against the first end 231 of the first locking ring 23; the second end 242 of the second locking ring 24 is pressed against the first end 241 of the second locking ring 24; the outer end of the free end 21 passes through a first locking ring 23 and a second locking ring 24 in sequence.

The fixed connection is formed integrally.

Example 2

Referring to fig. 2, the medical pull cord locking knot according to embodiment 1 has a movable ring 1 disposed at a location to be repaired. The part to be repaired can be human tissues such as ligaments, tendons, muscles, skin and the like.

The movable ring 1 can also be arranged on the part to be repaired by means of metal or nonmetal plates, rivets and the like.

Example 3

Referring to fig. 3, the movable ring 1 of the medical pull rope locking knot according to embodiment 1 is fixedly connected to a portion to be repaired.

The application scene of this embodiment is a human ligament repair operation, the part to be repaired is a human ligament, and the movable ring 1 is fixedly connected to the end of the ligament through sewing.

Referring again to fig. 4, in the present embodiment, the preferred medical pull cord locking knot further comprises a plate-shaped anchoring device 4, wherein at least two

holes

41 and 42 are formed on the plate-shaped anchoring device 4. The two branches of the mobile ring 1 pass through two

holes

41 and 42 of the plate-like anchoring device 4, so that the plate-like anchoring device 4 is movably connected between the mobile ring 1 and the locking knot 3.

In this embodiment, the free end 21 and the locking end 22 can be long, and only they can perform the tightening of the movable ring 1 and the locking of the sliding knot 2, i.e., the tightening, locking, etc. can be performed without directly contacting the movable ring 1 or the sliding knot 2. Therefore, the utility model is particularly suitable for the surgical operations such as minimally invasive surgery, endoscope surgery and the like.

In this embodiment, the movable ring 1 is in a narrow bone tunnel, i.e. the angle between the movable ring and the bone tunnel is close to zero, but the medical pull rope locking knot adopted in this embodiment can still realize the self-locking function quickly and stably.

The utility model discloses in, can also adopt the rivet as anchoring device, do not do specifically and restrict specific material, shape and the size of rivet.

In the present invention, the anchoring device is made of a biocompatible material, such as metal or nonmetal, and is not particularly limited in terms of the specific material and size of the anchoring device and the shape and distance of the holes formed in the anchoring device.

Further, in the above embodiment of the present invention, the anchoring device may preferably be provided with a barb structure. The anchoring device with the barb structure is adopted, and the one-way locking effect is further enhanced. The utility model discloses do not do specifically and restrict to shape, size and the density that sets up of barb structure on the anchoring device.

Further, in the present invention, the pulling rope is preferably made of a biocompatible material, and other properties, dimensions, and the like of the pulling rope are not particularly limited.

Further, in the embodiment of the present invention, the pulling rope may preferably be provided with a barb structure. The pull rope with the barb structure is adopted, and the one-way locking effect is further enhanced. The utility model discloses do not specifically limit to shape, size and the density that sets up of barb structure.

The utility model provides a medical stay cord locking knot is prefabricated knot, nevertheless in view of this system knot mode simple and efficient, the usage is extensive, also can regard as non-prefabricated knot, and other structures of collocation or device use are applicable to for example that the tissue is sewed up etc. and are used.

The above disclosure is only three specific embodiments of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.

Claims

1. A medical pull rope locking knot is characterized by comprising an unclosed movable ring, wherein a sliding knot is arranged at an opening of the movable ring, the sliding knot comprises a free end, a locking end and at least two locking rings, the free end is fixedly connected with one opening end of the movable ring, and the locking end is fixedly connected with the other opening end of the movable ring through the two locking rings; the free end movably penetrates through the two locking rings;

pulling the free end, the free end being slidable within the locking ring;

the two locking rings can be tightened by pulling the locking end or pulling the free end and the locking end simultaneously, and the free end can be fixed in the two locking rings;

and the pull rope locking knot is provided with a barb structure.

2. The medical pull cord locking knot of claim 1, wherein the two locking rings are symmetrically arranged, a first end of the first locking ring is fixedly connected with the movable ring, and a second end of the first locking ring is fixedly connected with a second end of the second locking ring; the first end of the second locking ring is fixedly connected with the locking end;

the second end of the first locking ring is pressed on the first end of the first locking ring;

the second end of the second locking ring is pressed on the first end of the second locking ring;

the outer end part of the free end sequentially penetrates through the first locking ring and the second locking ring.

3. The medical pull-cord locking knot of claim 1, wherein the movable ring is fixedly attached to the site to be repaired.

4. The medical pull-cord locking knot according to claim 3, further comprising an anchoring device through which both ends of the movable ring are respectively passed, wherein the sliding knot is located outside the anchoring device.

5. The medical cord locking knot of claim 4, wherein the anchoring device is a metallic biocompatible material or a non-metallic biocompatible material.

6. The medical pull-cord locking knot of claim 5, wherein the anchoring means is a plate-like anchoring means.

7. The medical pull-cord locking knot according to claim 6, wherein two holes are provided in said plate-like anchoring means, and both ends of said movable ring are respectively passed through one of said holes.

8. The medical cord locking tie of claim 5, wherein said anchoring device is a rivet structure.

9. The medical pull-cord locking knot according to any one of claims 4 to 8, wherein the anchoring means is provided with a barb structure.