CN221083956U - Medical dovetail clamp - Google Patents

Abstract

A medical dovetail clamp includes an elastic clamp body, elastic clamping plates are provided on the upper and lower clamping parts of the elastic clamp body, soft clamping layers are provided on the planes opposite to each other of the two elastic clamping plates, the two soft clamping layers are tightly fitted together in a natural state, clamping control handle mounting seats are provided on the two outer sides of the elastic clamp body, clamping control handles are detachably installed in the clamping control handle mounting seats, the clamping control handle is provided with a scissor-shaped handle body, and a mounting rod is provided at the front end of the scissor-shaped handle body, a mounting hole is opened in the clamping control handle mounting seat, the mounting rod cooperates with the mounting hole, and an elastic component is provided at the rear end of the scissor-shaped handle body, and the elastic component enables the mounting rod at the front end of the scissor-shaped handle body to be inserted into the mounting hole in a natural state. The utility model has a simple structure, is easy to use, can stabilize the fixed position, will not be displaced or fall off, and can prevent the clamped object from bending and deforming.

Description

A medical dovetail clamp

Technical Field

The utility model belongs to the technical field of surgical auxiliary instruments, and in particular relates to a medical dovetail clip.

Background technique

In ophthalmic surgery or other surgical procedures, we often need to use clamps to clamp sutures to pull the eye or tissue. The function of the clamp is generally to fix the current position to prevent the pulled sutures or artificial lens loops from moving. However, traditional surgical forceps can easily cause damage to the clamped objects such as disposable surgical drapes and artificial lens loops, affecting the surgical effect or causing contamination of the operating table. The most typical example is in ophthalmic cataract surgery, where an artificial lens needs to be implanted to replace the original cloudy lens. For severe damage to the lens suspensory ligament or capsular bag caused by various reasons, the artificial lens cannot be implanted and needs to be sutured and fixed. Since the polypropylene suture will degrade and melt, the artificial lens will dislocate, posing a safety hazard. In 2007, Scharioth et al. proposed the sutureless scleral interlaminar intraocular lens haptic fixation technique; in 2017, Yamane et al. proposed an improved procedure called the double-needle technique, which made the operation of the sutureless scleral interlaminar intraocular lens haptic fixation technique relatively simple and easy to promote. In recent years, it has become a hot technology in cataract surgery. The method of this operation is to use a 1mL syringe needle (equivalent to 26G) to puncture the sclera in a clockwise direction 2mm behind the corneal margin, starting from the 2 o'clock position and parallel to the corneal margin, with a thickness of about 1/2 and a length of about 2mm, and then pierce into the eye toward the center of the cornea and parallel to the iris surface, slowly push the artificial lens from the upper corneal tunnel, send the anterior loop of the artificial lens into the 1mL syringe needle, and then pull out the needle to bring out the anterior loop of the artificial lens. Use the same method to use a 1mL syringe needle 2mm behind the corneal margin, starting from the 8 o'clock position and parallel to the corneal margin to puncture the sclera in a clockwise direction for about 2mm and then pierce into the eye, guide the posterior loop of the artificial lens outside the eye, and then burn and expand the end of the lens loop, and then adjust the lens loop and send it back to the scleral tunnel. The expanded end of the lens loop plays a fixing role outside the scleral tunnel.

The difficulty of this procedure is that when the posterior loop is pulled, the anterior loop can easily slip into the eye, causing the artificial lens to fall into the vitreous cavity and cause complications. In order to avoid this problem, the current method is to ask an assistant to clamp the anterior loop of the artificial lens with a hemostat or a needle holder to prevent it from slipping into the eye, but this brings two problems. First, the hemostat or needle holder can easily cause the anterior loop of the artificial lens to deform and bend, causing the artificial lens to tilt after fixation in the eye, seriously affecting its postoperative effect; second, the assistant's hands and hemostat will affect the main surgeon's operation.

Secondly, when fixing surgical sutures in ophthalmology or other surgical operations, it is sometimes necessary to pull tissues or eyeballs with sutures to expose the surgical field or fix the eyeball, and a hemostat is required to clamp the cloth at the traction end to fix the traction line. Surgical dressings have been gradually replaced from reusable sterilized cloth to disposable chemical fiber materials. This material is waterproof, dust-free, fiber-free, and inexpensive, but it is very thin and can be easily broken by hemostat, increasing the risk of contaminating the surgical area and causing infection.

Utility Model Content

1. Technical Problems Solved

In view of the deficiencies in the prior art, the utility model provides a medical dovetail clamp which has a simple structure, is easy to use, can stabilize a fixed position, will not shift or fall off, will not affect the operation of a surgical surgeon, will not tear disposable chemical fiber fabrics, and can prevent excessive bending and deformation of the clamped object.

2. Specific technical solutions

A medical dovetail clamp comprises an elastic clamp body, wherein the upper and lower clamping parts of the elastic clamp body are provided with elastic clamping plates, and soft clamping layers are provided on the planes opposite to each other of the two elastic clamping plates, and the two soft clamping layers are tightly fitted together in a natural state, and clamping control handle mounting seats are provided on the two outer sides of the elastic clamp body, and clamping control handles are detachably installed in the clamping control handle mounting seats, and the clamping control handle is provided with a scissor-shaped handle body, and a mounting rod is provided at the front end of the scissor-shaped handle body, and a mounting hole is opened in the clamping control handle mounting seat, and the mounting rod cooperates with the mounting hole, and an elastic component is provided at the rear end of the scissor-shaped handle body, and the elastic component enables the mounting rod at the front end of the scissor-shaped handle body to be inserted into the mounting hole in a natural state.

Preferably, the scissor-shaped handle body is composed of two supporting bodies, a rotating mounting pin is arranged in the middle of the supporting body, and the two supporting bodies are cross-rotated and mounted together through the rotating mounting pin, a control handle body is arranged at the rear end of the two supporting bodies, the two control handle bodies are arranged opposite to each other, and a limited movable mounting groove body is arranged at the front end of the two supporting bodies, a rotating shaft is installed in the limited movable mounting groove body, and the mounting rod is rotatably mounted on the rotating shaft, and spring connecting seats are arranged opposite to each other at the rear end of the two supporting bodies, and the two ends of the elastic component are respectively fixedly connected to the two spring connecting seats.

Preferably, the clamping control handle mounting seat includes two mounting seats, the two mounting seats are symmetrically arranged near the edge of the elastic clamp body, a positioning baffle is also arranged between the two mounting seats, the blocking surface of the positioning baffle is aligned with the lower edge of the mounting hole, and the mounting hole is a through hole.

Preferably, the elastic component is a compression spring.

Preferably, the elastic clip is in a triangular shape in a naturally closed state and in a U shape in an open state.

Preferably, horizontal stripes or vertical stripes are arranged on the planes opposite to each other of the two soft clamping layers, and the soft clamping layers are made of plastic material.

The beneficial effects of the utility model are as follows: the elastic clamping body in the form of a dovetail clamp is adopted, so that the clamping elastic force has a wider range of action and the elastic force is evenly distributed; an elastic clamping plate and a soft clamping layer are provided for use together, the clamping end has a large action area, which is convenient for clamping operation, and the contact surface is wide, which will not cause deformation of the artificial lens loop, and the elastic clamping plate can also be more flexible when clamping the front loop of the artificial lens or other sutures to pull the eye position or tissue, and can realize adaptive adjustment, and will not damage the clamped object when tightly clamping the object; the control handle is detachable, so that after clamping the front loop of the artificial lens and other objects, the clamping control handle can be removed, leaving only the integral part of the elastic clamping body, so that the clamp occupies a small space and is light in weight, and does not affect the operation of the main surgeon.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic side view of the overall installation structure of the utility model.

FIG. 2 is a schematic diagram of the overall structure of the elastic clamp in the present invention.

FIG. 3 is a schematic structural diagram of a clamping control handle in the present invention.

FIG. 4 is a schematic diagram of the cross-sectional structure of the clamping control handle in the present invention.

Description of reference numerals: elastic clamping body 1; elastic clamping plate 2; soft clamping layer 3; clamping control handle mounting seat 4; clamping control handle 5;

Scissor-shaped handle 51; mounting rod 52; mounting hole 53; elastic member 54;

Support body 511; rotating mounting pin 512; control handle body 513; limited movable mounting slot body 514; rotating shaft 515; spring connection seat 516;

Mounting seat 41; Positioning baffle 42.

Detailed ways

The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more explicit definition of the protection scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Implementation examples:

As shown in Figures 1, 2, 3 and 4: a medical dovetail clamp is provided with an elastic clamp body 1, which is triangular in shape in a naturally closed state and U-shaped in an open state, that is, the shape of the elastic part of the general dovetail clamp body. The elastic force of this structure clamping has a wide range of action and the elastic force is evenly distributed.

Elastic clamping plates 2 are provided on the upper and lower clamping parts of the elastic clamping body 1, that is, two elastic clamping plates 2 parallel to each other are provided at the two opening ends, and soft clamping layers 3 are provided on the opposite planes of the two elastic clamping plates 2, and the soft clamping layers 3 are made of plastic.

The two soft clamping layers 3 are tightly fitted together in a natural state, that is, the natural state is that only the elastic force of the elastic clamping body 1 acts, and no external force is applied. When an external force is applied, the elastic force of the elastic clamping body 1 is overcome to separate the two soft clamping layers 3. If the two soft clamping layers 3 are arranged on the inner side of the elastic clamping body 1 as shown in Figures 1 and 2, they can also be arranged on the outer side, but the space occupied by the outer side is too large, which is not conducive to the operation; when they are arranged on the inner side, the innermost ends of the two soft clamping layers 3 may briefly conflict after separation, and the elastic force of the elastic clamping plate 2 can be adaptively adjusted. The elastic clamping plate 2 can also achieve adaptive adjustment when clamping the front loop of the artificial lens or other sutures to pull the eye position or tissue. When tightly clamping the object, it will not damage the clamped object. The elastic clamping plate 2 and the soft clamping layer 3 are used in combination, and the clamping end has a large effective area, which is convenient for the clamping operation, and the contact surface is wide, which will not cause the deformation of the artificial lens loop.

The two soft clamping layers 3 are provided with horizontal stripes or vertical stripes on the planes opposite to each other, which are adjusted according to the usage scenario to facilitate straight and standardized clamping. At the same time, in order to make the clamping more stable during surgery, the elastic clamping body 1 needs to be replaced as a whole each time. The overall cost of the elastic clamping body 1 is not high, and it can be used as a one-time molded product in more delicate use processes. The soft clamping layer 3 can also be replaced, which requires that the soft clamping layer 3 is artificially adhered to the elastic clamping plate 2, which will result in a low degree of alignment accuracy between the soft clamping layer 3 and the stripes, and it cannot be used in operations such as surgery, but can be used in ordinary medical care.

The two outer sides of the elastic clamp body 1 are each provided with a clamping control handle mounting seat 4, in which a clamping control handle 5 is detachably mounted, and the clamping control handle 5 is provided with a scissor-shaped handle body 51, and a mounting rod 52 is provided at the front end of the scissor-shaped handle body 51, and a mounting hole 53 is opened in the clamping control handle mounting seat 4, and the mounting rod 52 cooperates with the mounting hole 53, and an elastic component 54 is provided at the rear end of the scissor-shaped handle body 51, and the elastic component 54 is a compression spring or a tension spring. This setting is determined according to the opening and closing direction of the scissor-shaped handle body 51 and the matching direction of the mounting rod 52 and the mounting hole 53. Specifically, the elastic component 54 enables the mounting rod 52 at the front end of the scissor-shaped handle body 51 to be inserted into the mounting hole 53 in a natural state.

The scissor-shaped handle body 51 is composed of two support bodies 511, a rotating mounting nail 512 is arranged in the middle of the support body 511, and the two support bodies 511 are rotatably mounted together through the rotating mounting nail 512. The rear ends of the two support bodies 511 are each provided with a control handle body 513, and the two control handle bodies 513 are arranged opposite to each other. The front ends of the two support bodies 511 are provided with a limited movable mounting groove body 514, and a rotating shaft 515 is installed in the limited movable mounting groove body 514. The mounting rod 52 is rotatably mounted on the rotating shaft 515. The mounting rod 52 It is able to move slightly under the limitation of the limited movable mounting groove 514. The reason is that the scissor-shaped handle 51 has a certain slight angle change relative to the mounting rod 52 during the opening and closing process, and the space after the mounting rod 52 is inserted into the mounting hole 53 is limited. The movably arranged mounting rod 52 is to overcome this angle change, so that the mounting rod 52 can be more easily inserted and removed from the mounting hole 53. The rear ends of the two support bodies 511 are oppositely provided with spring connecting seats 516, and the two ends of the elastic component 54 are respectively fixedly connected to the two spring connecting seats 516.

The clamping control handle 5 is detachable, so that after clamping an object such as the front loop of an artificial lens, the clamping control handle 5 can be removed, leaving only the entire elastic clamp body 1, so that the clamp occupies a small space and is light in weight, and does not affect the operation of the surgeon.

The above-mentioned clamping control handle mounting seat 4 is provided with two mounting seats 41, and the two mounting seats 41 are symmetrically arranged near the edge of the elastic clamp body 1, and a positioning baffle 42 is also arranged between the two mounting seats 41. The blocking surface of the positioning baffle 42 is aligned with the lower edge of the mounting hole 53. This structure facilitates the positioning of the installation rod 52 and inserting it into the mounting hole 53, and the mounting hole 53 is a through hole, which is convenient for cleaning and disassembly of the clamping control handle 5 under extreme conditions.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention shall be defined by the appended claims.

Claims (6)

1. The utility model provides a medical forked tail presss from both sides, including elasticity clamp body (1), its characterized in that: the utility model provides a clamping control handle, including elastic clamp body (1), clamping control handle mounting seat (4), installation hole (53) are offered in clamping control handle mounting seat (4), clamping control handle (5) are detachably installed respectively in clamping control handle mounting seat (4), clamping control handle (5) are provided with scissors form handle body (51), scissors form handle body (51) front end all is provided with installation inserted bar (52) install mounting hole (53) in clamping control handle mounting seat (4), installation inserted bar (52) are in cooperation with this mounting hole (53) scissors form handle body (51) rear end portion is provided with elastomeric element (54), and installation bar (52) of scissors form handle body (51) front end is in cooperation under natural state.

2. The medical dovetail clip according to claim 1, wherein: the scissors-shaped handle body (51) is composed of two supporting bodies (511), a rotary mounting nail (512) is arranged in the middle of each supporting body (511), the two supporting bodies (511) are mounted together through the cross rotation of the rotary mounting nail (512), the rear ends of the two supporting bodies (511) are respectively provided with a control handle body (513), the two control handle bodies (513) are oppositely arranged, the front ends of the two supporting bodies (511) are provided with limiting movable mounting groove bodies (514), a rotary shaft (515) is mounted in each limiting movable mounting groove body (514), a mounting inserting rod (52) is rotatably mounted on each rotary shaft (515), spring connecting seats (516) are oppositely arranged at the rear ends of the two supporting bodies (511), and two ends of each elastic component (54) are fixedly connected with the two spring connecting seats (516).

3. The medical dovetail clip according to claim 1 or 2, wherein: the clamping control handle mounting seat (4) comprises two mounting seats (41), the two mounting seats (41) are symmetrically arranged at the edge positions close to the elastic clamp body (1), a positioning baffle (42) is further arranged between the two mounting seats (41), a blocking surface of the positioning baffle (42) is aligned with the edge of the lower side of the mounting hole (53), and the mounting hole (53) is a through hole.

4. A medical dovetail clip according to claim 3, wherein: the elastic member (54) is a compression spring.

5. A medical dovetail clip according to claim 3, wherein: the elastic clamp body (1) is triangular in a natural closed state and U-shaped in an open state.

6. The medical dovetail clip according to claim 1 or 2, wherein: the two soft clamping layers (3) are provided with transverse stripes or vertical stripes on opposite planes, and the soft clamping layers (3) are made of plastic materials.