CN215458443U

CN215458443U - Minimally invasive surgical instrument for puncture cutting

Info

Publication number: CN215458443U
Application number: CN202120415716.3U
Authority: CN
Inventors: 刘村; 姚月彤; 郑艳玲; 赵璇; 张倩
Original assignee: JINAN CENTER HOSPITAL
Current assignee: JINAN CENTER HOSPITAL
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2022-01-11
Anticipated expiration: 2031-02-25

Abstract

The application discloses a minimally invasive surgical instrument for puncture cutting, belongs to the field of surgical instruments, and is used for treating carpal tunnel syndrome; the diameter of the sterile arc-shaped needle head is 0.4 mm-0.6 mm, and the length of the sterile arc-shaped needle head is 13 mm-25 mm; the diameter of the wire saw is 0.07 mm-0.09 mm, and the length of the wire saw is 30 mm-50 mm. In view of the technical scheme, the minimally invasive puncture and incision surgery instrument has the advantages of simple structure, convenience in operation, extremely small surgical wound, low surgical cost and the like, and can be suitable for minimally invasive surgery of puncture and incision.

Description

Minimally invasive surgical instrument for puncture cutting

Technical Field

The utility model belongs to the field of surgical instruments, and particularly relates to a minimally invasive surgical instrument for puncture cutting.

Background

Taking carpal tunnel syndrome (carpal tunnel syndrome) as an example, carpal tunnel syndrome is a group of symptoms and signs displayed by the compression of the median nerve in the carpal tunnel, and is the most common one of peripheral nerve entrapment syndrome. The carpal tunnel is composed of a bottom wall and two side walls formed by carpal bones, and a bone and fiber tunnel formed by covering transverse carpal ligaments is arranged on the carpal tunnel. The tendon of flexor hallucis longus is in the wrist tube, the deep and superficial tendons of 2-4 fingers of the flexor hallucis longus and the median nerve pass through, the most superficial of the median nerve is located between the transverse ligament of wrist and other tendons, the tendon of flexor hallucis longus is wrapped by the radial bursa of fabricius, and the other tendons are wrapped by the ulnar bursa. When the wrist joint is flexed, the median nerve is pressed, and the fist is forcefully closed, so the pressure is more severe. The posterior branch of the median nerve, exiting the carpal tunnel, innervates the greater thenar muscles, the 1 st and 2 nd lumbrical muscles, the radial palm and the 3 semiphalangeal cutaneous sensations, with the exception of the adductor pollicis. The carpal tunnel syndrome can cause finger numbness, muscle atrophy of the thenar muscles, finger numbness and dysfunction of affected limbs caused by limited thumb movement if not treated, so that the operation of cutting the transverse carpal ligament is an important means for treating the carpal tunnel syndrome.

Open surgery and arthroscopic wrist surgery are generally adopted for treating the transverse carpal ligament, although the transverse carpal ligament can be thoroughly incised in the open surgery at present to fully release the median nerve, the surgery incision is large and is easy to cause complications, such as columnar pain, scar pain, median nerve palmoplantar pseudoneuroma, infection and the like. With the technological progress, endoscopes have been widely applied to clinic, because the surgical incision is small and the postoperative recovery is fast, a wrist arthroscope as an endoscope becomes a treatment means for treating wrist diseases, but the wrist arthroscope system is expensive and can only be owned in large-scale comprehensive hospitals, and the primary hospitals are difficult to bear the purchase cost; moreover, the wrist arthroscope has long learning curve time, difficult mastering of technology and high use cost, which can restrict the clinical use of the wrist arthroscope. Therefore, carpal tunnel syndrome has not been a surgical instrument that has a small surgical incision and is low in cost and easy to master.

Disclosure of Invention

The utility model aims to provide a minimally invasive surgical instrument for puncture cutting, which has the advantages of simple structure, convenient operation, extremely small surgical wound, low surgical cost and the like, can be mastered in shorter training time, and can be suitable for minimally invasive surgery of puncture cutting.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the minimally invasive surgical instrument for puncture cutting comprises a sterile arc-shaped needle head and a wire saw, wherein the wire saw is connected to the tail part of the sterile arc-shaped needle head and forms a whole with the sterile arc-shaped needle head; the diameter of the sterile arc-shaped needle head is 0.4 mm-0.6 mm, and the length of the sterile arc-shaped needle head is 13 mm-25 mm; the diameter of the wire saw is 0.07 mm-0.09 mm, and the length of the wire saw is 30 mm-50 mm.

Further, the diameter of the sterile arc needle head is 0.4mm, and the length of the sterile arc needle head is 13 mm; the diameter of the wire saw is 0.07mm, and the length of the wire saw is 30 mm.

Further, the diameter of the sterile arc needle head is 0.5mm, and the length of the sterile arc needle head is 18 mm; the diameter of the wire saw is 0.08mm, and the length of the wire saw is 40 mm.

Further, the diameter of the sterile arc needle head is 0.6mm, and the length of the sterile arc needle head is 25 mm; the diameter of the wire saw is 0.09mm, and the length of the wire saw is 40 mm.

Further, the sterile curved needle of the present invention comprises a curved body having a needle head formed with a sharp portion and a tail portion connected to a jigsaw.

Further, when the tail part of the sterile arc-shaped needle head is connected with the wire saw in a separable manner, the tail part of the sterile arc-shaped needle head is provided with a pinhole connected with the wire saw. The wire saw is tied to the needle hole of the sterile arc needle head.

Further, the wire saw is a stainless steel rope body.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model can perform puncture operation above and below the transverse carpal ligament under the ultrasonic guidance, and repeatedly pull and cut the transverse carpal ligament by using the wire saw, thereby achieving the purpose of thoroughly relaxing the transverse carpal ligament under the condition of avoiding damaging tendon nerves by a surgical knife.

2. The endoscope has the advantages of simple structure, low learning cost and no need of purchasing an expensive wrist arthroscope as an endoscope, and is beneficial to reducing purchasing cost and improving the effect of popularization.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the state of use of the present invention.

In the figure: 1. a sterile arcuate needle; 2. and (4) wire sawing.

Detailed Description

The technical solution of the present invention will be further described and illustrated with reference to the accompanying drawings and embodiments. It should be noted that, in the following paragraphs, possible directional terms including, but not limited to, "upper, lower, left, right, front, rear" and the like are used, and all directions are meant to correspond to the visual directions shown in the drawings of the specification, which should not be construed as limiting the scope of the present invention, and are only for facilitating the better understanding of the technical solutions described in the specification by those skilled in the art.

In the description of the following paragraphs, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances in combination with common general knowledge in the art, design specifications, standard documents, and the like.

Example 1

A minimally invasive surgical instrument for puncture cutting comprises a sterile arc-shaped needle head 1 and a scroll saw 2, wherein the scroll saw 2 is connected to the tail part of the sterile arc-shaped needle head 1 and is integrated with the sterile arc-shaped needle head 1; the diameter of the sterile arc-shaped needle head 1 is 0.4 mm-0.6 mm, and the length is 13 mm-25 mm; the diameter of the wire saw 2 is 0.07 mm-0.09 mm, and the length of the wire saw 2 is 30 mm-50 mm.

Example 2

A minimally invasive surgical instrument for puncture cutting is disclosed, wherein the diameter of a sterile arc needle head 1 is 0.4mm, and the length is 13 mm; the wire saw 2 is 0.07mm in diameter and 30mm in length. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.

Example 3

A minimally invasive surgical instrument for puncture cutting is disclosed, wherein the diameter of a sterile arc needle head 1 is 0.5mm, and the length is 18 mm; the wire saw 2 is 0.08mm in diameter and 40mm in length. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.

Example 4

A minimally invasive surgical instrument for puncture cutting is disclosed, wherein the diameter of a sterile arc needle head 1 is 0.6mm, and the length is 25 mm; the diameter of the wire saw 2 is 0.09mm, and the length is 40 mm. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.

Example 5

A minimally invasive surgical instrument for puncture and cutting is characterized in that a sterile arc-shaped needle head 1 comprises an arc-shaped body, wherein the arc-shaped body is provided with a needle body consisting of a sharp part and a tail part connected with a wire saw 2; the tail part of the sterile arc needle head 1 is provided with a needle hole connected with the wire saw 2 so as to form a structure which can be connected with the wire saw 2 in a split way; the wire saw 2 is a stainless steel rope body. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.

On the basis of the above-mentioned embodiments, the following paragraphs are used to continue detailed description of the technical features involved therein and the functions and actions of the technical features in the technical solutions, so as to help those skilled in the art fully understand the technical solutions and reproduce the technical solutions.

When the utility model is used, as shown in fig. 2, firstly, a) transverse carpal ligament is required to be positioned through ultrasonic guidance; secondly), local anesthesia is carried out under the ultrasonic guidance, then normal saline is injected on and under the transverse carpal ligament respectively to separate the transverse carpal ligament from surrounding tissues so as to protect the median nerve, and the normal saline enters the sterile arc-shaped needle head 1 from an incision on one side of the palm, is positioned below the transverse carpal ligament under the ultrasonic guidance and then passes out through two incisions. And thirdly), inserting the needle from the second incision, discharging the needle from the first incision, and ensuring that the needle head of the sterile arc-shaped needle 1 is attached to the upper part of the transverse carpal ligament to travel under the ultrasonic guidance. Fourthly), the wire saw is repeatedly pulled to cut the transverse carpal ligament at the moment, so that the condition that the tendon nerve is damaged by a scalpel and the transverse carpal ligament is not loosened completely is avoided.

The utility model can determine the instrument specification according to the use position and the crowd, solves the problem that the cost cannot be reduced while the operation incision is ensured to be small in the existing operation, is beneficial to the grasp of operators, and has simple structure and convenient use.

Finally, although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description of the present description is for clarity reasons only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A minimally invasive surgical instrument for stab cutting, characterized by: comprises a sterile arc needle head (1) and a scroll saw (2), wherein the scroll saw (2) is connected with the tail part of the sterile arc needle head (1) and is integrated with a sterile pillow (1); the diameter of the sterile arc-shaped needle head (1) is 0.4 mm-0.6 mm, and the length is 13 mm-25 mm; the diameter of the wire saw (2) is 0.07 mm-0.09 mm, and the length of the wire saw (2) is 30 mm-50 mm.

2. The minimally invasive surgical instrument for stab cutting of claim 1, wherein: the diameter of the sterile arc-shaped needle head (1) is 0.4mm, and the length of the sterile arc-shaped needle head is 13 mm; the diameter of the wire saw (2) is 0.07mm, and the length is 30 mm.

3. The minimally invasive surgical instrument for stab cutting of claim 1, wherein: the diameter of the sterile arc-shaped needle head (1) is 0.5mm, and the length of the sterile arc-shaped needle head is 18 mm; the diameter of the wire saw (2) is 0.08mm, and the length is 40 mm.

4. The minimally invasive surgical instrument for stab cutting of claim 1, wherein: the diameter of the sterile arc-shaped needle head (1) is 0.6mm, and the length of the sterile arc-shaped needle head is 25 mm; the diameter of the wire saw (2) is 0.09mm, and the length is 40 mm.

5. The minimally invasive surgical instrument for stab cutting of claim 1, wherein: the sterile arc-shaped needle head (1) comprises an arc-shaped body, and the arc-shaped body is provided with a needle head consisting of a sharp part and a tail part connected with the wire saw (2).

6. The minimally invasive surgical instrument for stab cutting of claim 5, wherein: when the tail part of the sterile arc needle head (1) is connected with the wire saw (2) in a separable way, the tail part of the sterile arc needle head (1) is provided with a needle hole connected with the wire saw (2).

7. Minimally invasive surgical instrument for stab cutting according to any of claims 1 to 6, characterized in that: the wire saw (2) is a stainless steel rope body.