CN221786560U - Endoscopic foreign body clamp - Google Patents

Abstract

The utility model provides a foreign body forceps holder for an endoscope, and relates to the technical field of medical appliances. Including the holder body and set up in the internal foreign matter fixture of holder, the cover is equipped with the control foreign matter for the scope foreign matter clamp fixture at the holder body business turn over and open and close the pull ring, adopts split type structure, makes things convenient for the foreign matter to clamp and gets, simultaneously through body front end metal casing's slip oppression, also can the at utmost clamp foreign matter after the foreign matter is got to the pincers, accomplish and also can increase the pincers and get the dynamics when making things convenient for the pincers to get the foreign matter, prevent the foreign matter slippage, increase the pincers clamping dynamics, increase the foreign matter pincers and remove the success rate.

Description

Endoscopic foreign body clamp

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a foreign body clamp for an endoscope.

Background Art

Foreign bodies in the digestive tract are common clinical emergencies. Foreign bodies are prone to being retained in the upper digestive tract, with the main type being retained in the esophagus. According to relevant reports and studies, the proportion of foreign bodies retained in the esophagus in the upper digestive tract in the Chinese population can reach about 85%. There are many types of foreign bodies, including animal bones, fruit pits, fish bones, glass marbles, lighters, buttons, commemorative coins, etc. Some are made of metal or sharp materials. The longer the foreign body is entrapped, the greater the chance of complications. For example, it can cause perforation, bleeding, and infection of the digestive tract wall. In severe cases, it can lead to massive digestive tract bleeding, septic shock, and even death. Endoscopic foreign body removal has the characteristics of less trauma, low cost, fewer iatrogenic complications, and relatively shorter hospital stays for patients. It is currently often used as the preferred treatment for digestive tract foreign bodies.

At present, different foreign body forceps are generally selected according to the size, length, shape, type, hardness, etc. of the foreign body in clinical practice, such as biopsy forceps, foreign body forceps, snares, stone removal baskets, etc. The above commonly used foreign body removal instruments have the following disadvantages: 1. Biopsy forceps: Due to their limited opening and closing range, they are generally only used to remove smaller foreign bodies. The ability to remove larger foreign bodies (greater than 0.5 cm) is limited. At the same time, due to their metal structure, they often cannot smoothly clamp metal foreign bodies, resulting in limited clinical application and poor results. 2. Foreign body forceps: Made of metal, they are suitable for the removal of foreign bodies made of relatively soft materials such as plastics. For metal foreign bodies, they are easy to slip after clamping, and the clamping force is limited, resulting in the inability to smoothly clamp foreign bodies. Repeated clamping of foreign bodies will increase the endoscopic operation time and bring certain operation risks. 3. Snare: Generally a disposable instrument, commonly used for snare removal of digestive tract polyps, etc. In addition, the snare is circular after being unfolded. It is easier to snare round or quasi-circular foreign bodies firmly, but it is generally difficult to snare long foreign bodies and irregular foreign bodies firmly. When encountering foreign bodies inside metal, it is often not possible to snare them firmly and they are easy to fall off during the dragging process. The cost is generally high. 4. The stone removal basket is a disposable instrument, which is mainly used for the removal of pancreatic and bile duct stones. The material cost is relatively high and it is not suitable for conventional endoscopic foreign body removal. It can be seen from the above-mentioned clamping devices that the foreign body clamps commonly used in the prior art have a small scope of application, unstable object clamping, easy to slip and require secondary operation, which is risky and easy to cause secondary injury to the patient.

Utility Model Content

The utility model aims to provide a foreign body clamp for endoscope, which can solve the problems raised by the above-mentioned background technology in view of the shortcomings of the prior art.

The technical solution of this application is implemented as follows:

The present application provides a foreign body clamp for endoscope, comprising a clamp body and a foreign body clamping mechanism arranged in the clamp body, and a pull ring for controlling the foreign body clamping mechanism to enter, exit and open and close in the clamp body is sleeved on the clamp body.

In some technical solutions of the utility model, the foreign body clamping mechanism includes a plurality of clamping rods and a control assembly, the control assembly is transmission-connected to the plurality of clamping rods and the pull ring, and the plurality of clamping rods are arranged in a surrounding manner in the clamp body.

In some technical solutions of the present utility model, a plurality of conical barbs are equidistantly provided on the outer side wall of the clamping rod along its axial direction, and the tip of the barb faces the axis of the clamping body.

In some technical schemes of the utility model, the control component includes a plurality of traction wires respectively connected to a plurality of clamping rods, and an inlay is provided in the clamp body; the inlay is provided with a plurality of through holes corresponding to the traction wires one by one; the plurality of traction wires are respectively passed through the corresponding through holes and extend outward after penetrating the outer wall of the clamp body, the extended ends of the traction wires are connected to the pull ring, and the traction wires located between the inlay and the pull ring are staggered.

In some technical solutions of the utility model, a foreign matter restricting body is provided at the end of the clamping rod.

In some technical solutions of the utility model, a guide groove is provided on the outer side wall of the clamp body along its axial direction, and a sliding block connected with the pull ring is slidably provided in the guide groove.

In some technical solutions of the utility model, an operating handle is provided at the end of the clamp body away from the foreign body clamping mechanism.

Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

The clamping rod adopts a split structure, which is convenient for clamping foreign bodies. At the same time, through the sliding pressure of the metal sleeve at the front end of the tube body, the foreign body can be clamped to the maximum extent after being clamped. While facilitating the clamping of foreign bodies, it can also increase the clamping force, prevent the foreign body from slipping, increase the clamping force, and increase the success rate of foreign body removal;

The clamping rod is made of silicone or soft plastic material, which can increase a certain friction force when clamping foreign objects and increase the clamping strength. At the same time, the head end is designed with a barbed structure to facilitate the clamping of annular foreign objects and prevent foreign objects from falling off;

The foreign body clamp is simple and convenient to use, and has a faster foreign body removal effect, thereby improving the efficiency of foreign body removal;

The materials and manufacturing process of the foreign body clamp are simple, and the technical difficulty and cost of the manufacturing are not increased. The instrument is suitable for most endoscopic devices currently on the market and has strong applicability.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of the three-dimensional structure of the utility model;

Fig. 2 is a schematic cross-sectional view of the utility model;

FIG3 is an enlarged schematic diagram of the foreign body clamping mechanism of the present invention;

FIG. 4 is a schematic diagram of the top view of the structure of the embedded body in the present invention.

Icons: 1. Operating handle; 2. Clamp body; 3. Guide groove; 4. Pull ring; 5. Traction wire; 6. Ring body; 7. Clamping rod; 8. Inlay; 9. Through hole; 10. Foreign body restricting body; 11. Barbed body.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Example

Please refer to Figures 1 to 4.

The present application provides a foreign body clamp for endoscope, comprising a clamp body 2 and a foreign body clamping mechanism arranged in the clamp body 2. The clamp body 2 is provided with a pull ring 4 for controlling the clamping mechanism of the foreign body clamp for endoscope to enter, exit and open and close in the clamp body 2.

In some technical solutions of the utility model, the foreign body clamping mechanism includes a plurality of clamping rods 7 and a control assembly, the control assembly is transmission-connected to the plurality of clamping rods 7 and the pull ring 4, and the plurality of clamping rods 7 are surrounded and arranged in the clamp body 2.

In some technical solutions of the utility model, a plurality of conical barbs 11 are equidistantly provided on the outer side wall of the clamping rod 7 along the axial direction thereof, and the tip portions of the barbs 11 face the axis of the clamping body.

In some technical schemes of the utility model, the control component includes a plurality of traction wires 5 respectively connected to a plurality of clamping rods 7, and an inlay 8 is provided in the clamp body 2; a plurality of through holes 9 corresponding to the traction wires 5 are opened on the inlay 8; the plurality of traction wires 5 are respectively passed through the corresponding through holes 9 and extend outward after penetrating the outer wall of the clamp body 2, and the extended ends of the traction wires 5 are connected to the pull ring 4, and the traction wires 5 located between the inlay 8 and the pull ring 4 are staggered.

Furthermore, the clamping rod 7 is formed integrally with the traction wire 5 .

Drawing is metal wire drawing, which is a metal wire with certain toughness and rigidity.

In some technical solutions of the present utility model, a foreign matter restricting body 10 is provided at the end of the clamping rod 7 .

In some technical solutions of the utility model, a guide groove 3 is provided on the outer wall of the clamp body 2 along its axial direction, and a slider connected to the pull ring 4 is slidably provided in the guide groove 3 .

In some technical solutions of the present utility model, an operating handle 1 is provided at the end of the clamp body 2 which is away from the foreign body clamping mechanism.

The endoscopic foreign body forceps provided in the technical solution can improve the efficiency of clamping, and has the principles of economy and practicality, and is a foreign body clamping instrument that is conducive to clinical use; the endoscopic foreign body forceps consists of an operating handle 1, a pull ring 4, a traction wire 5, a clamp body 2, an inlay 8 and a clamping rod 7, the traction wire 5 is a metal drawing wire, and the clamp body 2 is a (metal or plastic) tube body. The above components are combined and connected into one, and have the characteristics of flexible operation and convenient opening and closing; the endoscopic foreign body forceps can pass through the biopsy forceps channel, has a diameter of less than 2.8mm, and is suitable for all endoscopic devices currently on the market; the foreign body clamping mechanism of the endoscopic foreign body forceps can generally reach after the foreign body clamping mechanism is unfolded The clamping area with a diameter of about 2-3 cm is suitable for clamping most foreign bodies; the foreign body clamping mechanism is composed of 4 clamping rods 7 with multiple barbs 11 at the front end, and the barbs 11 are small bodies of silicone (or soft plastic). The barbs 11 are arranged on the outer wall of the clamping rod 7 in a cone-shaped barb-like manner, and the barbs 11 are integrally formed with the rubber sleeve in advance and then sleeved on the clamping rod 7. The barbs 11 at the end are cylindrical and larger in volume than other small silicone bodies. After unfolding, it is convenient to clamp and fix foreign bodies in the shape of cylinders, ellipses, pyramids, cubes, etc. The barbs 11 are in close contact with the foreign bodies to increase friction and have the function of preventing slippage, that is, increasing the success rate of clamping. The clamp body 2 is provided with a metal ring body 6 at the front end thereof, and the ring body 6 is slidably arranged at the front end thereof. When the operator operates the pull ring 4, the metal ring body 6 sliding at the front end of the clamp body 2 directly contacts the clamp rod 7 and restricts the four clamp rods 7 to achieve locking. The strength of the front end of the clamp body 2 is increased, and the clamping force of the clamp body 2 tube wall is increased. The poor clamping effect or clamping failure caused by the deformation of the front end of the clamp body 2 is avoided. The inlay 8 is located at the front end of the clamp body 2, and the surface of the inlay 8 is The surface is provided with four through holes 9, which can accommodate the metal drawing wire and limit the traction wire 5, and the through holes 9 are distributed at the points 3, 6, 9 and 12 o'clock in the clock, and the traction wire 5 is connected to the pull ring 4 by snapping or riveting; the four traction wires 5 are first connected to the pull ring 4 and then staggered with each other and then passed through the four through holes 9 to be integrally formed with the corresponding clamping rod 7, and the staggered traction wires 5 do not interfere with each other when moving in the clamp body 2 under the push of the pull ring 4, and the four traction wires 5 can move smoothly in the through holes 9; and a guide groove 3 is provided on the outer wall of the clamp body 2, and the guide groove 3 facilitates the pull ring 4 to slide on the clamp body 2.

After general foreign bodies are clamped, the foreign bodies can be wrapped. This structure can avoid the contact between the foreign bodies and the wall of the digestive tract to the greatest extent, and reduce secondary injuries caused by the foreign body removal process, such as bleeding, perforation, etc.; the materials and manufacturing process used in the endoscopic foreign body clamp are simple and practical, do not increase the manufacturing cost and the complexity of the materials, do not require special training for clinical use, and are more suitable for clinical use.

The specific operation process of this patent is as follows: (1) The operator retracts the pull ring 4 of the foreign body clamp to retract the foreign body clamp mechanism into the clamp body 2, and the foreign body clamp is in a closed state; (2) The foreign body clamp passes through the endoscope biopsy channel in the closed state and reaches the foreign body in the cavity with the endoscope; (3) After adjusting the angle and distance of the endoscope, the operator gently pushes the pull ring 4, and the foreign body clamp mechanism immediately extends out of the front end of the clamp body 2, and the various parts of the foreign body clamp mechanism can be freely unfolded and then released. (4) By adjusting the angle and distance of the endoscope, the foreign body clamping mechanism can smoothly clamp the foreign body. When the operator shrinks the pull ring 4 and moves it closer to the operating handle 1, the foreign body clamping mechanism slowly slides toward the ring body 6. At this time, the tube wall of the clamp body 2 cooperates with the ring body 6 to compress the clamping rod 7 to the maximum extent, so that the four clamping rods 7 firmly grasp the foreign body and do not loosen; (5) After ensuring that the foreign body is firmly clamped, the operator pulls the body of the endoscope and slowly pulls the foreign body clamping instrument that grabs the foreign body out of the body. The foreign body is successfully removed.

The foreign body clamp adopts a split structure, which is convenient for clamping foreign bodies. At the same time, the sliding of the ring body 6 at the front end of the clamp body 2 compresses the foreign body clamping mechanism, and the foreign body can be clamped to the maximum extent after the foreign body is clamped. While facilitating the clamping of foreign bodies, it can also increase the clamping force, prevent the foreign body from slipping, increase the clamping force, and increase the success rate of foreign body removal;

The outer side of the clamping rod 7 is attached with silicone or soft plastic material, which can increase a certain friction force when clamping foreign objects and increase the clamping strength. At the same time, the head end is designed with a barb-like structure to facilitate the clamping of annular foreign objects and prevent the foreign objects from falling off;

The foreign body clamp is simple and convenient to use, and has a faster foreign body removal effect, thereby improving the efficiency of foreign body removal;

The materials and manufacturing process of the foreign body clamp are simple, and the technical difficulty and cost of the manufacturing are not increased. The instrument is suitable for most endoscopic devices currently on the market and has strong applicability.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a foreign matter clamp for endoscope, its characterized in that includes the holder body and sets up in the internal foreign matter fixture of holder, the cover is equipped with the control foreign matter fixture in the internal business turn over of holder and open and close the pull ring of holder body.

2. The foreign matter forceps holder according to claim 1, wherein the foreign matter holding mechanism includes a plurality of holding rods and a control assembly, the control assembly is in transmission connection with the plurality of holding rods and the pull ring, and the plurality of holding rods are circumferentially arranged in the holder body.

3. The foreign matter forceps for endoscope according to claim 2, wherein a plurality of tapered barb bodies are equidistantly provided on the outer side wall of the holding rod along the axial direction thereof, and the tip end portions of the barb bodies face the axis of the holder body.

4. A foreign body forceps for endoscope according to any of claims 2 or 3, wherein said control assembly comprises a plurality of traction wires respectively connected to a plurality of said gripping bars, said gripper body having an inlay disposed therein; the inlay is provided with a plurality of through holes which are in one-to-one correspondence with the traction wires; the traction wires penetrate through the corresponding through holes and penetrate through the outer wall of the holder body and then extend outwards, the extending ends of the traction wires are connected with the pull ring, and the traction wires between the inlay and the pull ring are staggered.

5. The foreign matter clamp for an endoscope according to claim 2, wherein a foreign matter limiter is provided at an end portion of the clamping rod.

6. The foreign matter forceps holder for endoscope according to claim 1, wherein a guide groove is provided along an axial direction of an outer side wall of the holder body, and a slider connected with the pull ring is slidably provided in the guide groove.

7. The foreign matter clamp for an endoscope according to claim 1, wherein an end of the clamp body facing away from one end of the foreign matter clamp mechanism is provided with an operation handle.

8. The foreign matter clamp for an endoscope according to claim 1, wherein an end portion of the clamp body near one end of the foreign matter clamp mechanism is provided with a ring body.