CN105832389B - A kind of caliper structure of medical foreign matter net pincers - Google Patents

Abstract

The invention discloses a clamp body structure of a medical foreign body mesh forceps. The forceps 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 direction of the long axis, and the pipe joint b and One end connected to the capsule is formed with a partition; the capsule is a hollow structure, and a round or elliptical jaw is formed on the wall at one end of the capsule in the direction of the short axis, and the inner circumference of the jaw is formed with a Telescopic tubes; one 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 the pipe joint b; the structure of the clamp body is compact and ingenious. 3D printing can realize one-time processing and molding. The outer wall of the forceps is smooth and elliptical, and the size of the forceps body can be processed into different sizes to suit different parts due to the small irritation and damage to the tissue pipeline in the body.

Description

A clamp body structure of medical foreign body net forceps

This patent application is:

The name of the invention is: a medical foreign body net forceps structure

The application number is: 201410768557X

The application date is: 2014.12.14

divisional application of the patent application.

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 proposals are adopted to achieve: a clamp body structure of a medical foreign body net forceps, which is integrally formed by an elastic rubber material, and the forceps body is composed of an ellipsoidal capsule and is integrally connected to the long axis of the capsule The pipe joint b at one end of the direction is composed of a pipe joint b, and the end of the pipe joint b connected to the capsule is formed with a partition part that separates the pipe joint b from the capsule; the pipe joint b is mated with the connecting pipe The capsule is a hollow structure, and the long axis of the ellipse where the capsule is located is 1.5 times the length of the short axis; an elliptical jaw is formed on the wall at one end of the short axis of the capsule, and the inside of the jaw is There is a telescopic tube formed around; the inner wall of the capsule is uniformly formed with a plurality of support tubes along the long axis direction; 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 , the position corresponding to each support tube on the partition is formed with a through hole connecting the support tube and the pipe joint b; the telescopic tube communicates with at least one support tube, and the thickness of the telescopic tube is smaller than the thickness of the support tube; the telescopic tube The inner wall of the tube is evenly formed with spiral ribs, and the pitch of the spiral ribs is 1/10 of the inner diameter of the telescopic tube; the support tube supports the capsule under the action of air pressure to make it in an expanded state, and the telescopic tube is under the action of air pressure The effect of elongation makes the jaw open, and when the air pressure is lost, the support tube and the telescopic tube lose their support, and the jaw returns to its original size.

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 removing foreign matter from various positions in the body. The spiral ribs on the inner wall of the telescopic tube make the telescopic tube axially elongate, and in the radial direction of the telescopic tube, due to the small pitch of the ribs, the radial direction of the telescopic tube bulges. The starting range is small and almost negligible, which can ensure that the volume of the caliper body will not increase excessively after the telescopic tube is extended. 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, the structure of a kind of medical foreign body mesh 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 pneumatic control handle includes a piston barrel 11 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 part 132. The piston An adjusting nut 12 is connected to the threaded part of the rod, and a push ring 131 is integrally connected to the rear end of the piston rod; a pipe joint a111 that is connected to the connecting pipe is integrally connected to the front end of the piston barrel, and the piston barrel is close to the rear end The outer wall of the body is integrally connected with two symmetrically arranged pull rings 112, and the pliers body is integrally formed by an elastic rubber material, and the pliers body is composed of an ellipsoidal capsule body 35 and a round tube integrally connected to one end of the capsule body 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 is a hollow structure, and the long axis of the ellipse where the capsule is located is 1.5 times the length of the short axis; an elliptical jaw 351 is formed on the wall at one end in the direction of the short axis of the capsule, and the inner circumference of the jaw is formed with A telescopic tube 332; the inner wall of the capsule is uniformly formed with a plurality of support tubes 331 along the long axis direction; the ends of each support tube away from the pipe joint b are connected, and the end of each support tube close to the pipe joint b is connected to the partition part, The position corresponding to each support tube on the partition is formed with a through hole 312 connecting the support tube and the pipe joint b; the telescopic tube communicates with at least one support tube, and the thickness of the telescopic tube is smaller than the thickness of the support tube; The inner wall of the tube is evenly formed with spiral ribs, and the pitch of the spiral ribs is 1/10 of the inner diameter of the telescopic tube; 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 passes through the connection The tube enters the support tube and the telescopic 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 and the telescopic tube Both lost their support, and the jaws returned to their original size.

The pliers body is processed and formed at one time by 3D printing. The inner wall of the capsule is also formed with auxiliary support tubes (not shown in the figure) which are perpendicular to each support tube and communicate with each support tube. The auxiliary support tube enables the capsule to be supported more stably, enabling the forceps to adapt to various complex environments in different parts of the body.

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

The clamp body structure of a medical foreign body mesh forceps described in this embodiment is integrally formed by an elastic rubber material, and the forceps body is composed of an ellipsoidal capsule 35 and a round tubular tube integrally connected to one end of the capsule in the direction of the long axis. A joint b31 is formed, and one 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 is Hollow structure, the long axis of the ellipse where the capsule is located is 1.5 times the length of the short axis; an oval jaw 351 is formed on the wall at one end in the direction of the short axis of the capsule, and a telescopic tube is formed on the inner periphery of the jaw 332; the inner wall of the capsule is uniformly formed with a plurality of support tubes 331 along the long axis direction; the end of each support tube away from the pipe joint b is connected, and the end of each support tube close to the pipe joint b is connected to the partition part, and on the partition Corresponding to the position of each support tube, a through hole 312 connecting the support tube and the pipe joint b is formed; the telescopic tube communicates with at least one 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 The spiral ribs are evenly formed, and the pitch of the spiral ribs is 1/10 of the inner diameter of the telescopic tube; the support tube supports the capsule under the action of air pressure to make it in an expanded state, and the telescopic tube is elongated under the action of air pressure As a result, the jaws are widened, and the support tube and the telescopic tube lose support after the air pressure is lost, and the jaws return to the original size.

Claims (1)

1. a kind of caliper structure of medical foreign matter net pincers, it is characterised in that：Be integrally formed by elastic rubber material, the caliper by The utricule of elliposoidal and it is integrally attached to the pipe joint b of tubular of utricule long axis direction one end and constitutes, and pipe joint b and capsule One end of body connection forms a partition board portion for separating pipe joint b and utricule；The pipe joint b coordinates with connecting tube and connected Connect；Described utricule is hollow structure, and the major axis of elliptical shape ball residing for utricule is 1.5 times of minor axis length；Utricule short-axis direction one An oval jaws is formed on the wall at end, described jaws inner circumferential forms a telescoping tube；The utricule inwall Multiple support tubes are uniformly formed along long axis direction；The one end of each support tube away from pipe joint b is connected, and each support tube is leaned on Nearly pipe joint b one end is connected with partition board portion, and the position of each support tube of correspondence forms connection support tube and connect with pipe on dividing plate Head b through hole；The telescoping tube is connected with least one support tube, and the flexible tube thickness is less than the thickness of support tube； The inwall of the telescoping tube uniformly forms spiral rib, and the pitch of spiral rib is the 1/ of flexible bore 10；Support tube by air pressure effect prop up utricule be allowed to be in deployed condition, telescoping tube by air pressure effect elongation so as to Magnify jaws, lose air pressure rear supporting tube, telescoping tube and lose support, jaws is recovered to initial size.