CN210077747U

CN210077747U - Half-moon plate sewing thread passing device

Info

Publication number: CN210077747U
Application number: CN201822019606.6U
Authority: CN
Inventors: 钱乐文; 陈子乐; 艾泽琪; 张旭凯; 范虓杰; 谷雪莲
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2020-02-18
Anticipated expiration: 2028-12-04

Abstract

The utility model provides a meniscus stitches line ware, include: the needle tube bending device comprises a handle (1), a bending needle tube (2) and a pulley (3), wherein the bending needle tube (2) is connected to the front end of the handle (1), both the handle (1) and the bending needle tube (2) are provided with hollow structures which are arranged in a penetrating mode and are mutually butted, a groove is formed in the side face of the front end of the handle (1), a convex shaft (4) is arranged in the center of the groove, and the pulley (3) is arranged in the groove and is in rotating fit with the convex shaft (4); the edge of the pulley (3) is tangent with the hollow structure. The thread passing device has determined structural parameters according to the relevant principle of ergonomics and conforms to the internal structure of a human body. The needle head part of the thread passing device is made of a material which can avoid elastic deformation generated in puncture or fracture generated by overlarge stress, so that the safety of the operation is improved, and the difficulty of the operation is reduced.

Description

Half-moon plate sewing thread passing device

Technical Field

The utility model relates to a medical operation equipment especially relates to a surgical instrument that can be used to soft tissue injury sutural.

Background

The injury of soft tissues such as ligaments and the like seriously affects the activity of a human body, so the operation of repairing the soft tissue injury is required. In the operation process, the damaged soft tissue needs to be accurately sutured, and the medical suture threading device is a key instrument for success or failure of the operation. Most of the existing products in the market are imported brands, the price is high, the internal structure characteristics of a human body are not met, related companies do not research and develop the products at present, domestic multi-purpose suture needles replace thread passing devices, but the suture needles are complex and tedious to operate, and the operation difficulty is high.

SUMMERY OF THE UTILITY MODEL

For overcoming the problem among the prior art, the utility model provides a semilunar plate stitches line ware, include: the needle tube bending device comprises a handle, a bending needle tube and a pulley, wherein the bending needle tube is connected to the front end of the handle, the handle and the bending needle tube are respectively provided with a hollow structure which is arranged in a penetrating mode, the hollow structures are mutually butted, a groove is formed in the side face of the front end of the handle, a convex shaft is arranged in the center of the groove, and the pulley is arranged in the groove and is in rotating fit with the convex shaft; the edge of the pulley is tangent to the hollow structure.

The utility model provides an in the half moon board stitching line ware, the anterior segment of crooked needle tubing becomes crooked form, the middle section of crooked needle tubing becomes straight form, the rear end of crooked needle tubing pass through interference fit with the front end of handle is connected.

The utility model provides an in the half moon board stitches line ware, the outside of handle accords with the ergonomic principle design, becomes with hand assorted curvilinear figure.

The utility model provides an among the half moon board stitching line ware, the rear end of handle is equipped with a centre bore, the centre bore with hollow structure in the handle link up mutually.

The utility model provides an in the half moon board stitches the line ware, the shape of centre bore becomes the loudspeaker form of outside expansion, and its aperture is greater than hollow structure's aperture.

The utility model provides an in the half moon board stitching line ware, the outer cylinder of pulley has anti-skidding sawtooth for increase and point and with the frictional force of stylolite.

Compared with the prior art, the beneficial effects of the utility model are that: the thread passing device has determined structural parameters according to the relevant principle of ergonomics and conforms to the internal structure of a human body. The needle head part of the thread passing device is made of a material which can avoid elastic deformation generated in puncture or fracture generated by overlarge stress, so that the safety of the operation is improved, and the difficulty of the operation is reduced.

Drawings

Fig. 1 is an external view of a meniscal suture passing device.

Fig. 2 is a longitudinal sectional view of the handle.

Fig. 3 is a longitudinal sectional view of the meniscal suture passing device.

FIG. 4 is a schematic view of the rear end of the handle as it penetrates the suture.

FIG. 5 is a schematic view of the curved forward end of the needle cannula as it exits the suture.

In the figure, 1-handle, 2-bending needle tube, 3-pulley, 4-protruding shaft, 5-central hole.

Detailed Description

The meniscal suture thread passing device of the present invention will now be described in greater detail with reference to the schematic drawings in which the preferred embodiments of the present invention are shown, it being understood that those skilled in the art may modify the invention herein described while still achieving the advantageous effects of the present invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.

As shown in fig. 1, the utility model discloses half moon board stitches line ware includes: the needle tube bending device comprises a handle 1, a bent needle tube 2 and a pulley 3, wherein the bent needle tube 2 is connected to the front end of the handle 1, the handle 1 and the bent needle tube 2 are respectively provided with a hollow structure which is arranged in a penetrating mode, the hollow structures are mutually butted, a groove is formed in the side face of the front end of the handle 1, a convex shaft 4 is arranged in the center of the groove, and the pulley 3 is arranged in the groove and is in rotating fit with the convex shaft 4; the edge of the pulley 3 is tangent to the hollow structure.

With particular reference to fig. 2, the handle 1 is ergonomically designed on the outside to have a curved shape to match the hand. The rear end of the handle 1 is provided with a central hole 5, and the central hole 5 is communicated with a hollow structure in the handle 1. More preferably, the central hole 5 is shaped like an outwardly expanding trumpet, and the aperture of the trumpet is larger than that of the hollow structure, so that the suture thread can be conveniently threaded. The outer cylinder of the pulley 3 is provided with anti-skid sawteeth for increasing the friction force with fingers and suture lines.

Specifically, referring to fig. 3, the front section of the curved needle tube 2 is curved, the middle section of the curved needle tube 2 is straight, and the rear end of the curved needle tube 2 is connected with the front end of the handle 1 through interference fit. The bent needle tube 2 is detachably connected with the handle 1, so that the bent needle tube 2 can be conveniently recycled or disinfected after operation. In the embodiment, the bent needle tube 2 is made of stainless steel 304, and the handle 1 and the pulley 3 are both made of plastic ABS.

The utility model discloses the use of line ware is sewed up to meniscus as follows:

taking the commonly used inner-outer suturing technology of the meniscus repairing operation as an example, a patient is in a horizontal position, an arthroscope is used for exploring a conventional joint through an outer access, the damage type of the meniscus is confirmed, a planer is used for being placed in through an inner access, the damaged part is polished and cleaned, a suture line (the line used in the figure is a No. 7 line of Chinese standard) is penetrated through a central hole at the rear end of a handle 1 of a thread passing device (the process is shown in figure 4), the front section of the suture line exceeds the position of a pulley, and then the suture thread passing device is placed in the damaged part through the cooperation of the arthroscope. When an operator holds the thread passing device handle 1 to puncture the injured part, the suture needle penetrates out of the front section of the bent needle tube 2 by adjusting the pulley 3 on the handle 1 (the process is shown in fig. 5). The front section of the suture is fixed by placing a probe hook (needle), and the thread passing device is taken out. The damaged meniscus is restored by pulling the back end of the suture line through another feeler hook under the monitoring of an arthroscope, and then is knotted outside the joint capsule through a skin incision, thereby completing the meniscus suture operation.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. The utility model provides a meniscus stitches line ware which characterized in that includes: the needle tube bending device comprises a handle (1), a bent needle tube (2) and a pulley (3), wherein the bent needle tube (2) is connected to the front end of the handle (1), both the handle (1) and the bent needle tube (2) are provided with hollow structures which are arranged in a penetrating mode and are mutually butted, a groove is formed in the side face of the front end of the handle (1), a convex shaft (4) is arranged in the center of the groove, and the pulley (3) is arranged in the groove and is in rotating fit with the convex shaft (4); the edge of the pulley (3) is tangent to the hollow structure.

2. The meniscus suture passing device according to claim 1, wherein the front section of the bent needle tube (2) is bent, the middle section of the bent needle tube (2) is straight, and the rear end of the bent needle tube (2) is connected with the front end of the handle (1) through interference fit.

3. Meniscus suture passer according to claim 1, characterized in that the outer part of the handle (1) is ergonomically designed in a curved shape to match the hand.

4. Meniscus suture passer according to claim 1, characterized in that the rear end of the handle (1) is provided with a central hole (5), the central hole (5) communicating with the hollow structure inside the handle (1).

5. Meniscus stitching thread guide according to claim 4, characterized in that the central hole (5) is shaped like an outwardly flared trumpet with a larger aperture than the hollow structure.

6. Meniscus suture passing device according to claim 4, characterized in that the outer cylinder of the pulley (3) has anti-slip serrations for increasing the friction with the fingers and with the suture.