CN104473682B - A kind of medical foreign body mesh forceps - Google Patents

Abstract

The invention discloses medical foreign body net forceps, which comprise a pneumatic control handle, a forceps body and a connecting pipe, wherein the connecting pipe is used for connecting the forceps body and the pneumatic control handle; the forceps body is composed of an ellipsoidal capsule body and a pipe joint b which is integrally connected to one end of the capsule body in the long axis direction, and a partition plate part is formed at one end of the pipe joint b connected with the capsule body; the capsule body is of a hollow structure, a circular or elliptical clamping opening is formed in the wall surface of one end of the capsule body in the short axis direction, and a telescopic pipe is formed in the inner periphery of the clamping opening; one end of each supporting tube close to the tube joint b is connected with a partition part, and through holes for communicating the supporting tubes with the tube joint b are formed in the partition corresponding to the positions of the supporting tubes; the forceps body compact structure ingenious, can realize one shot forming through 3D printing, the smooth and ellipsoid form that just is of forceps body outer wall, the amazing and the injury that produce the internal tissue pipeline little forceps body size can be processed out not equidimension in order to adapt to different positions.

Description

A kind of medical foreign body mesh forceps

technical field

The invention belongs to the field of medical instruments, and in particular relates to a structure of foreign body forceps for trachea.

Background technique

Foreign objects that are accidentally inhaled into the respiratory tract will hinder breathing, and in severe cases, it will cause suffocation or even death. After inhaling foreign objects, they must be removed in time. Usually, foreign body removal is performed by using a bronchoscope with tracheal foreign body forceps. The foreign body forceps in the prior art are made of metal, and are reused many times after cleaning and disinfection. However, the jaws of the foreign body forceps are usually connected to the main body of the forceps in a hinged form. , There is a dead angle in the connection position, it is difficult to clean thoroughly, there is a risk of infection when it is reused, and the use effect is not ideal. However, if the foreign body forceps made of metal are used once, the cost is too high and resources are wasted. The name of the applicant's application on September 21, 2014 is: a tracheal foreign body forceps and forceps body, the patent application number is: 2014104843355 solves the above problems, but the forceps body of this foreign body forceps clamps The claws are opened in front of the pliers body, and when grasping certain irregularly shaped, large-sized or even spiked foreign objects, they cannot completely wrap up the foreign objects, and it is easy to injure them during the process of clamping the foreign objects and dragging them outward. Patient tissue, the use effect is not ideal.

Contents of the invention

The technical problem to be solved by the present invention is to provide a medical foreign body net forceps with simple structure, convenient use and operation, reliable gripping of foreign bodies, and avoiding damage to patient tissues during removal of sharp foreign bodies.

In order to achieve the purpose of the present invention, the following technical solutions are adopted: a medical foreign body mesh forceps, including a pneumatic control handle, a forceps body, and a connecting pipe connecting the forceps body and the pneumatic control handle; the pneumatic control handle includes: A piston barrel and a piston matched with the piston barrel. The piston is connected with a piston rod whose end extends out of the piston barrel. The end of the piston rod far away from the piston is formed with a threaded connection, and the threaded connection of the piston rod is connected to There is an adjusting nut, the rear end of the piston rod is integrally connected with a push ring; the front end of the piston barrel is integrally connected with a pipe joint a that is matched with the connecting pipe, and the outer wall of the piston barrel near the rear end is integrally connected with two symmetrically arranged The pull ring, the caliper body is integrally formed by elastic rubber material, the pliers body is composed of an ellipsoidal capsule and a round tube-shaped pipe joint b integrally connected to one end of the capsule in the long axis direction, and the pipe joint b One end connected to the capsule is formed with a partition part separating the pipe joint b from the capsule; the pipe joint b is connected with the connecting pipe; the capsule is a hollow structure, and one end in the short axis direction of the capsule is A circular or elliptical jaw is formed on the wall of the capsule, and a telescopic tube is formed on the inner periphery of the jaw; a plurality of support tubes are evenly formed on the inner wall of the capsule along the long axis direction; each support tube is far away from the pipe joint One end of b is connected, and the end of each support tube close to the pipe joint b is connected to the partition part, and the position corresponding to each support tube on the partition is formed with a through hole connecting the support tube and pipe joint b; the telescopic tube is connected to at least one The support tubes are connected, and the thickness of the telescopic tube is smaller than the thickness of the support tube; the inner wall of the telescopic tube is evenly formed with annular ribs; the piston rod pushes the piston to move to the front end of the piston barrel to compress the air in the piston barrel, and the compressed air Enter the support tube and the telescopic tube through the connecting tube, the support tube is supported by the air pressure to make it in the unfolded state, the telescopic tube is stretched by the air pressure to make the jaw open, and the piston rod returns to the initial state after the support tube, The telescopic tubes all lose their support, and the jaws return to their original size.

As a preference: the pliers body is processed and shaped at one time by 3D printing.

As a preference: the distance between two adjacent ribs on the inner wall of the telescopic tube is 1/10-1/5 of the inner diameter of the telescopic tube.

Compared with the prior art, the beneficial effect of the present invention is that the structure of the clamp body is compact and ingenious, and can be processed and formed at one time through 3D printing. Small; the inner wall of the capsule of the pliers is inflated by the support tube to keep it in the unfolded state, and the telescopic tube is stretched by the air pressure to make the jaw open. The latter produce two actions respectively. When the jaws are opened to align with the foreign matter and make the foreign matter within the range of the capsule, the support tube and the telescopic tube lose support after the piston rod returns to the initial state, the jaws return to the original size, and the foreign matter is completely removed. Wrapped in the capsule body, foreign matter will not fall out during the process of pulling out the forceps body, which is safe and convenient to use. The adjusting nut on the pneumatic control handle can adjust the advancing range of the piston rod. The adjusting nut can be adjusted to an appropriate position in advance according to the size of the foreign object and the size of the foreign object position space, so that the piston rod can be pressed to the bottom at one time when clamping the foreign object. That is to say, the size of the jaw is appropriate, which is beneficial to shorten the operation time and relieve the pain of the patient. The foreign body net pliers are suitable for taking out foreign bodies in various positions in the body. The annular ribs on the inner wall of the telescopic tube make the telescopic tube stretch in the axial direction, while the radial bulge is small, which can ensure that the telescopic tube will not cause The body volume of the forceps becomes too large. The size of the pliers body can be processed into different sizes to suit different parts.

Description of drawings

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

Fig. 2 is a structural schematic diagram of the pneumatic control handle.

Fig. 3 is a schematic diagram of the structure of the pliers body.

Fig. 4 and Fig. 5 are schematic cross-sectional structure diagrams of the pliers body.

1. Pneumatic control handle; 11. Piston cylinder; 111. Pipe joint a; 112. Pull ring; 12. Adjusting nut; 131. Push ring; Pipe joint b; 311, partition part; 312, through hole; 331, support tube; 332, telescopic tube; 35, capsule body; 351, clamping mouth.

detailed description

A detailed description will be given below of specific embodiments of the present invention according to the accompanying drawings.

Example 1

According to Fig. 1 to Fig. 5, a kind of medical foreign body net pliers described in this embodiment includes a pneumatic control handle 1, a pliers body 3, and a connecting pipe 2 connecting the pliers body and the pneumatic control handle; The control handle includes a piston cylinder 11 and a piston matched with the piston cylinder. The piston is connected with a piston rod whose end extends out of the piston cylinder. The end of the piston rod away from the piston is formed with a threaded connection portion 132. The piston rod An adjusting nut 12 is connected to the threaded connection part of the piston rod, and a push ring 131 is integrally connected to the rear end of the piston rod; The outer wall is integrally connected with two symmetrically arranged pull rings 112. The pliers body is integrally formed of elastic rubber material. The pipe joint b31 is formed, and the end of the pipe joint b connected to the capsule is formed with a partition part 311 separating the pipe joint b from the capsule; the pipe joint b is connected with the connecting pipe; the capsule The body is a hollow structure, and a round or oval jaw 351 is formed on the wall surface of one end of the short axis direction of the capsule, and a telescopic tube 332 is formed on the inner periphery of the jaw; the inner wall of the capsule is uniform along the long axis direction. A plurality of support tubes 331 are formed; the ends of each support tube away from the pipe joint b are connected, and the ends of each support tube close to the pipe joint b are connected to the partition part, and the position corresponding to each support tube on the partition is formed with a connecting support tube and The through hole 312 of the pipe joint b; the telescopic tube communicates with a support tube, and the thickness of the telescopic tube is less than the thickness of the support tube; the inner wall of the telescopic tube is evenly formed with annular ribs; the piston rod pushes the piston toward The front end of the piston barrel moves to compress the air in the piston barrel. The compressed air enters the support tube and the telescopic tube through the connecting tube. The support tube is supported by the air pressure to keep the capsule in an expanded state. The jaws are widened, and after the piston rod returns to the initial state, the support tube and the telescopic tube lose support, and the jaws return to the original size.

The pliers body is processed and formed at one time by 3D printing. The distance between two adjacent ribs on the inner wall of the telescopic tube is 1/10-1/5 of the inner diameter of the telescopic tube. The distance between the adjacent ribs is small, so that the radial deformation of the telescopic tube after being driven by the air pressure is small.

When in use, insert the fiber endoscope together with the clamp body and the connecting tube into the position near the foreign body in the patient's body, observe through the fiber endoscope, and align the jaws with the foreign body; press the piston rod to make the pneumatic control handle generate air pressure, and the clamp body The support tube hardens under the action of air pressure, thereby playing the role of supporting the capsule, and the telescopic tube is stretched under the action of air pressure, so that the jaws are expanded, and the position of the pliers body is fine-tuned so that the jaws are aligned with the foreign matter and the foreign matter is in the After the inside of the clamp, as long as the piston rod is released, the telescopic tube loses the air pressure and returns to its original shape, and the foreign matter is wrapped in the capsule, and then the pliers and the connecting tube are pulled out to remove the foreign matter.

Example 2

The difference between this embodiment and Embodiment 1 is that the telescopic tube is formed on the inner wall of the capsule, and the distance from the edge of the jaw is 1-1.5 times the outer diameter of the telescopic tube. This can not only ensure that the telescopic tube can drive the clamp to expand, but also prevent the telescopic tube from being punctured and damaged by the possible thorns on the foreign matter when it is inflated and stretched.

Example 3

A medical foreign body mesh forceps body described in this embodiment, the body is integrally formed of elastic rubber material, the body consists of an ellipsoidal capsule 35 and a round tube integrally connected to one end of the capsule in the direction of the long axis Shaped pipe joint b31, and one end of the pipe joint b connected to the capsule is formed with a partition part 311 that separates the pipe joint b from the capsule; the pipe joint b is mated with the connecting pipe; the described The capsule body is a hollow structure, and a round or oval jaw 351 is formed on the wall surface of one end of the capsule body in the short axis direction, and a telescopic tube 332 is formed on the inner periphery of the jaw body; the inner wall of the capsule body is formed along the long axis direction A plurality of support tubes 331 are evenly formed; the ends of each support tube away from the pipe joint b are connected, and the ends of each support tube close to the pipe joint b are connected to the partition part, and the position corresponding to each support tube on the partition is formed with a connecting support tube The through hole 312 of the pipe joint b; the telescopic tube communicates with a support tube, and the thickness of the telescopic tube is smaller than the thickness of the support tube; the inner wall of the telescopic tube is evenly formed with annular ribs; the support tube The capsule is supported by the air pressure so that it is in an unfolded state, and the telescopic tube is stretched by the air pressure to make the jaw widen. When the air pressure is lost, both the support tube and the telescopic tube lose support, and the jaw returns to its original size.

Claims (3)

1. A medical foreign body net forceps, comprising a pneumatic control handle, a caliper body, and a connecting pipe connecting the pliers body and the pneumatic control handle; the pneumatic control handle includes a piston barrel and a piston that cooperates with the piston barrel, and the piston A piston rod with an end protruding out of the piston barrel is connected to the upper part. The end of the piston rod far away from the piston is formed with a threaded connection part. An adjusting nut is connected to the threaded connection part of the piston rod. The rear end of the piston rod is integrally connected with a A push ring; the front end of the piston barrel is integrally connected with a pipe joint a that is matched with the connecting pipe; the outer wall of the piston barrel near the rear end is integrally connected with two symmetrically arranged pull rings; The material is integrally formed, and it is characterized in that: the pliers body is composed of an ellipsoidal capsule body and a round tube-shaped pipe joint b integrally connected to one end of the capsule body in the long axis direction, and the end of the pipe joint b connected to the capsule body is formed with a A partition part separating the pipe joint b from the capsule body; the pipe joint b is connected with the connecting pipe; the capsule body is a hollow structure, and a circular shape is formed on the wall surface of one end of the capsule body in the direction of the short axis Or an oval jaw, the inner circumference of the jaw is formed with a telescopic tube; the inner wall of the capsule is uniformly formed with a plurality of support tubes along the long axis direction; each support tube is connected at one end away from the pipe joint b, each support One end of the tube close to the pipe joint b is connected to the baffle part, and the position corresponding to each support tube on the baffle part is formed with a through hole connecting the support pipe and the pipe joint b; the telescopic tube communicates with at least one support pipe, and the The thickness of the telescopic tube is smaller than the thickness of the support tube; the inner wall of the telescopic tube is evenly formed with annular ribs; the piston rod pushes the piston to move to the front end of the piston tube to compress the air in the piston tube, and the compressed air enters the support tube and the tube through the connecting tube. In the telescopic tube, the support tube supports the bladder under the action of air pressure to make it in an unfolded state, and the telescopic tube is elongated by the air pressure to make the jaw widen. After the piston rod returns to the initial state, both the support tube and the telescopic tube lose support, and the clip The mouth returns to its original size. 2 . A medical foreign body mesh forceps according to claim 1 , characterized in that: the forceps body is processed and shaped at one time by 3D printing. 3. A medical foreign body mesh forceps according to claim 1 or 2, characterized in that the distance between two adjacent ribs on the inner wall of the telescopic tube is 1/10-1/5 of the inner diameter of the telescopic tube.