CN219183989U

CN219183989U - Medical clamp

Info

Publication number: CN219183989U
Application number: CN202222682253.4U
Authority: CN
Inventors: 张少华
Original assignee: Individual
Current assignee: Foshan Anzhe Medical Instrument Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-06-16
Anticipated expiration: 2032-10-12

Abstract

The utility model provides a medical clamp, which comprises a first clamp leg and a second clamp leg, wherein a strip-shaped sliding groove is formed in the position, adjacent to the front end part, of the first clamp leg, a shaft hole is formed in the position, adjacent to the front end part, of the second clamp leg, the first clamp leg and the second clamp leg are hinged through a pin shaft arranged in the sliding groove and the shaft hole, the second clamp leg can slide back and forth along the sliding groove through the pin shaft, and a first clamping end and a second clamping end which are mutually matched and clamped are respectively formed at the front ends of the first clamp leg and the second clamp leg; even in the narrow interior space of the treatment site, due to the nature of the tracheostomy, even if the operator does not have highly skilled equipment, it may be possible to more accurately, more easily, and more quickly capture and pull out the guide wire at the knee joint surgical site with the medical clamp of the present application.

Description

Medical clamp

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a medical clamp.

Background

In modern society, professional sports are becoming more and more active, and people are also increasingly interested in health, regardless of age and sex, and sports are considered to be not only a health measure but also a part of life. It is growing exponentially. In particular, knee cruciate ligament (knee joint) sprain and fracture are types of injuries that often occur in the above-described locomotor activities, and such injuries may lead to gait disorders and degenerative arthritis.

The cruciate ligament of the knee joint is composed of the anterior cruciate ligament and the posterior cruciate ligament of the medial cruciate of the knee joint. Wherein the posterior cruciate ligament begins between the articular processes of the femur and is inclined behind the tibia. It adheres to the surface, the strongest ligament of the knee ligaments, preventing posterior tibial contraction and hyperextension, but rarely suffers from a single injury, the extent of which may be tensile injury or complete fracture.

In this regard, after the surgical instrument is inserted into the knee joint and a minimal incision is made in the affected area, a transplanted tendon (autologous tendon or allogeneic tendon), which is an artificial ligament, is placed on the bone for replacing the posterior cruciate ligament injury caused by the surgical instrument manipulation. At present, the tibial and tibial articular reconstruction posterior cruciate ligaments are mainly adopted. The guide wire connected with the operation part is pulled out by the operation instrument, and the transplanted tendon is pulled into the gap between the knee joints.

These operations are performed using arthroscopic surgical tools (forceps, etc.), but the space is narrow and hands cannot be used directly compared to open operations. Due to the nature and operation limitations of arthroscopic surgery, it is difficult to accurately capture a transplanted tendon pushed into a treatment site and a guide wire connected to the transplanted tendon and then pull it out.

That is, the above-described conventional surgical tools are constructed in only an elongated shape in consideration of spatial characteristics of an arthroscopic surgical narrow surgical site, and do not provide technical characteristics that facilitate the operation of capturing and pulling any object. Thus, there is a problem in that there is no choice but to rely on the skill level of the operator.

Disclosure of Invention

In view of the drawbacks of the prior art, it is an object of the present utility model to provide a medical clamp, which aims to provide a clamp structure that can easily capture a tendon-implanted guide wire and pull it out from the inside of a treatment site.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the application provides a medical clamp, medical clamp includes first pincers leg and second pincers leg, the adjacent tip department of first pincers leg is provided with rectangular spout, the adjacent tip department of second pincers leg is provided with the shaft hole, first pincers leg and second pincers leg are through installing the round pin axle in spout and the shaft hole constitutes articulated the connection, second pincers leg accessible round pin axle is followed the spout back-and-forth sliding, the front end of first pincers leg and second pincers leg is formed with first clamping end and the second clamping end that mutually support and press from both sides respectively.

Further, the first clamping end is a clamping tip with an arc-shaped concave, the second clamping end is a clamping tip with an arc-shaped convex, and the first clamping end and the second clamping end are mutually clamped and matched.

Further, anti-skid patterns for skid resistance are formed on the arc-shaped convex surface of the second clamping end.

Further, finger clamping rings which are convenient for inserting fingers are respectively formed at the rear ends of the first clamp leg and the second clamp leg.

The beneficial effects of the utility model are as follows:

1. even in the narrow interior space of the treatment site, due to the nature of the tracheostomy, even if the operator does not have highly skilled equipment, it can more accurately, more easily, and more quickly capture and pull out the guide wire at the knee joint surgical site with the medical clamp of the present application;

2. by promoting the convenience of the above-described operation, the degree of completion of the operation by the operator can be significantly improved, and the satisfaction of the patient after the operation can be improved.

Drawings

Fig. 1 is a schematic perspective view of a medical clamp according to an embodiment of the present application.

Fig. 2 is a schematic view of an exploded assembly structure of a medical clamp according to an embodiment of the present application.

Fig. 3 is a schematic view of a structure of a second clamp leg according to an embodiment of the present application when the second clamp leg moves backward along the first clamp leg.

Fig. 4 is a schematic view of a second clamp leg according to an embodiment of the present application when the second clamp leg moves forward along the first clamp leg.

Fig. 5 is a schematic structural view of the first clamp leg and the second clamp leg in the embodiment of the present application when they are clamped together.

Fig. 6 is a schematic view showing a structural state in which a medical clamp according to an embodiment of the present application removes a guide wire from a knee joint operation site.

In the figure:

100-medical clamp, 1-first clamp leg, 2-second clamp leg, 3-pin shaft, 4-finger clamping ring, 5-shaft hole, 6-chute, 11-first clamping end, 21-second clamping end and 22-anti-skid pattern.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the detailed description.

Referring to fig. 1 to 2, the present embodiment provides a medical clamp 100 including a first clamp leg 1 and a second clamp leg 2. The front ends of the first clamp leg 1 and the second clamp leg 2 are respectively provided with a first clamping end 11 and a second clamping end 12 which are mutually matched and clamped.

As described with reference to fig. 1 and 2, the first clamp leg 1 is provided with a strip-shaped chute 6 adjacent to the front end portion thereof, the second clamp leg 2 is provided with a shaft hole 5 adjacent to the front end portion thereof, the first clamp leg 1 and the second clamp leg 2 are hinged by a pin shaft 3 installed in the chute 6 and the shaft hole 5, and the second clamp leg can slide back and forth along the chute 6 by the pin shaft 3.

A bent portion which is offset in the same direction is formed in the same portion of the first clamping end 11 and the second clamping end 12, and therefore, an inwardly concave clamping groove is formed at one side of the bent portion of the first clamp leg 1 so as to be capable of guiding and receiving a wire target body to be clamped.

Also, a convex arc-shaped grip tip is formed at one side of the curved portion of the second clamp leg 2, and a convex arc-shaped surface of the second grip end 12 is formed with a skid-proof pattern 22 for skid prevention.

At the gripping rear ends of the first and second legs constituting the handle, a finger grip ring 4 is formed for inserting a finger.

Referring to fig. 6, reference numerals in fig. 6 are illustrated, where f is the femur between the pelvis and knee joint of the lower limb, g is the implant of the reconstructed cruciate ligament, and t is between the femur and the talus of the lower limb. t-1 is a tibial tunnel drilled in the tibia for tendon implantation.

The operation of the medical clamp having the above-described configuration according to the present utility model will be described in detail as follows:

first, surgical instruments are inserted into the knee joint, minimal incisions are made to the affected area, and then posterior arthroscopic attachment is used to implant tendons (artificial ligaments) to replace the posterior cruciate ligaments damaged by the surgical instruments' manipulation of the femur and tibia. Cruciate ligament reconstruction is performed.

For this purpose, under general anesthesia or spinal anesthesia, the patient bends his/her knee in a supine position, and performs arthroscopy through anterior/lateral passages to closely examine the degree of damage to the posterior cruciate ligament of the knee. After diagnosis, the posterior cruciate ligament reconstruction was performed using arthroscopy. First, arthroscopic and other surgical tools are applied to the anterolateral skin of the knee at the treatment site using a separate incision tool (not shown). Multiple small holes may be drilled and a single small hole drilled. Through this aperture, a separate reamer (not shown) may access the tibial tunnel of the skin below the knee.

Through the above procedure, minimal cutting of the skin is performed to form a hole so that various surgical instruments for reconstruction of the posterior cruciate ligament can be introduced into the treatment site, and then a reamer is used to avoid damaging the posterior nerve or blood vessel. A tibial tunnel is drilled through the tibia, a graft tendon is inserted to replace the fractured posterior cruciate ligament, and the graft tendon is pushed in from the anterior portion of the tibial tunnel.

A portion of the graft tendon is then passed through the posterior portion of the tibial tunnel, and as shown in fig. 6, a portion of the graft tendon g passed through the tibial tunnel t-1 is placed in the space between the knee joints. After being pulled out with the medical clamp in this embodiment, it is connected with bones (tibia and femur), and the operation of capturing the graft tendon g can be easily performed using the medical capture clamp of the present utility model.

In more detail, as shown in fig. 3, in a state in which the medical clamp 100 in the present embodiment is inserted into any one of small holes formed by cutting the anterolateral skin of the knee joint using a cutting tool, as shown in fig. 3, the second clamp leg 2 is moved backward so that the pin shaft 3 moves along the slide groove 6 formed in the first clamp leg 1, and the second clamp end 12 of the second clamp leg moves backward so as to form a state in which the first clamp end 11 of the first clamp leg 1 is in a convex protrusion.

Therefore, since the catching groove formed in the bent portion of the first clamping end 11 of the first clamp leg 1 is exposed to the outside, the wire connected to the transplanted tendon g serves as an object to be caught (g-1 can be easily placed in the catching groove), in this state, it is not disturbed by any.

Subsequently, as shown in fig. 4, the second clamp leg 2 is pushed forward, so that the second clamp leg 2 moves to its original position along the shaft hole 5. By making the length of the capturing tip of the first clamp leg 1 equal to the length of the capturing tip of the second clamp leg 2, the wire g-1 is finally in a clamped state.

In this state, as shown in fig. 5, the guide wire g-1 of the transplanted tendon g is connected to the catching groove by the operator holding the handle with the hand and closing it. At the same time at the curved portion of the capturing tip of the first leg 1 and the capturing tip of the second leg 2. In addition to being compressed by the curved portion, it may be caught by a concave-convex surface formed on the outer surface of the curved portion of the catching tip of the second clamp leg 2.

As described above, when the guide wire g-1 of the graft tendon g is captured using the medical clamp 100 in the present embodiment, the guide wire g-1 is pulled out to the anterolateral side through the space between the knee joints, whereby a portion of the graft tendon g connected to the guide wire g-1 can easily enter the space between the knee joints.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The medical clamp is characterized by comprising a first clamp leg and a second clamp leg, wherein a strip-shaped sliding groove is formed in the position, adjacent to the front end portion of the first clamp leg, a shaft hole is formed in the position, adjacent to the front end portion of the second clamp leg, the first clamp leg and the second clamp leg are hinged through a pin shaft arranged in the sliding groove and the shaft hole, the second clamp leg can slide back and forth along the sliding groove through the pin shaft, and a first clamping end and a second clamping end which are clamped in a matched mode are formed at the front ends of the first clamp leg and the second clamp leg respectively.

2. The medical clamp according to claim 1, wherein the first clamping end is a clamping tip formed with a circular arc concave shape, the second clamping end is a clamping tip formed with a circular arc convex shape, and the first clamping end and the second clamping end are mutually clamped and matched.

3. The medical clamp according to claim 2, wherein the arc-shaped convex surface of the second clamping end is provided with anti-slip patterns for preventing slipping.

4. A medical clamp according to any one of claims 1 to 3, wherein the rear ends of the first and second clamp legs are each formed with a finger grip ring for facilitating finger insertion.