CN214712618U

CN214712618U - Valve type backflow preventing device of biopsy cap for endoscope

Info

Publication number: CN214712618U
Application number: CN202023122947.XU
Authority: CN
Inventors: 杨成; 杨家悦; 占强; 王辉; 周梁云
Original assignee: Wuxi Peoples Hospital
Current assignee: Wuxi Peoples Hospital
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-11-16
Anticipated expiration: 2030-12-22

Abstract

The utility model provides a valve type backflow prevention device of a biopsy cap for an endoscope, which comprises a biopsy cap main body, a biopsy cap cover body, a connecting part and a valve type valve structure; the biopsy cap main body is of a tubular structure, and is of a through pipe structure with the diameter of the lower end surface larger than that of the upper end surface; one end of the connecting part is connected with the outer side surface of the bottom of the biopsy cap main body, and the other end of the connecting part is connected with the upper surface of the biopsy cap cover body; the biopsy cap body is a T-shaped cap body, and the middle of the biopsy cap body is provided with a hole structure; the valve flap structure is arranged in the opening structure in the middle of the biopsy cap body, one end of the valve flap structure and the upper end face of the T-shaped cap body are of an integrated structure, and the other end of the valve flap structure is not in contact with the inner side wall of the T-shaped cap body. The device both can guarantee that instruments such as biopsy forceps receive the squeezing action of biopsy forceps to the valve when inserting the biopsy cap, and the valve lamella is opened passively, and biopsy forceps get into the biopsy cap smoothly, can take out at biopsy forceps again, and when guaranteeing not having biopsy forceps utensil in the biopsy cap, the valve lamella self-closing to prevent that gas, the liquid in stomach cavity and the intestinal cavity from splashing out.

Description

Valve type backflow preventing device of biopsy cap for endoscope

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a valve formula of biopsy cap prevents backflow device for endoscope.

Background

During the course of gastrointestinal endoscopy and treatment, most patients who do not operate painlessly often show more obvious symptoms of nausea, vomiting and strong defecation and air discharge, because the pressure in the stomach cavity and the intestinal tract is higher, the gastrointestinal tract contents can be sprayed out from the biopsy cap for the endoscope, and operators can be easily sprayed on the body and even eyes by the liquids without protection, which greatly increases the risk of infection of medical staff. During the course of gastrointestinal endoscopy and treatment, most patients who do not operate painlessly often show more obvious symptoms of nausea, vomiting and strong defecation and air discharge, because the pressure in the stomach cavity and the intestinal tract is higher, the gastrointestinal tract contents can be sprayed out from the biopsy cap for the endoscope, and operators can be easily sprayed on the body and even eyes by the liquids without protection, which greatly increases the risk of infection of medical staff.

Disclosure of Invention

In order to overcome the technical problems, the utility model provides a valve type backflow prevention device of a biopsy cap for an endoscope, which comprises a biopsy cap main body, a biopsy cap cover body, a connecting part and a valve type valve structure; the biopsy cap main body is of a tubular structure, and is of a through pipe structure with the diameter of the lower end surface larger than that of the upper end surface; one end of the connecting part is connected with the outer side surface of the bottom of the biopsy cap main body, and the other end of the connecting part is connected with the upper surface of the biopsy cap cover body; the biopsy cap body is a T-shaped cap body, and the middle of the biopsy cap body is provided with a hole structure; the valve flap structure is arranged in the opening structure in the middle of the biopsy cap body, one end of the valve flap structure and the upper end face of the T-shaped cap body are of an integrated structure, and the other end of the valve flap structure is not in contact with the inner side wall of the T-shaped cap body.

As an improvement, the biopsy cap main body is of an elastic rubber structure, wherein a step surface with the diameter smaller than that of the upper end surface is arranged at a position 1-10mm away from the upper end surface; the lower end part of the T-shaped cap of the biopsy cap cover body can movably penetrate through the upper end or the lower end of the step surface.

As an improvement, the valve type valve structure is arranged to be an opening at the upper end, the lower end is a multi-valve gathering structure along a conical cone, and the top end of the conical cone is arranged in the T-shaped cap and faces the upper end face of the biopsy cap main body.

As a modification, each valve is an elastic rubber structure valve, and the connection between adjacent valves is movable gap connection, and comprises three valves.

As an improvement, the inner diameter of an opening on the upper end face of the valve flap structure is 3-4.5 mm.

As a modification, the cone angle of the conical cone body is set to be 40-80 degrees.

Has the advantages that: the utility model provides a valve formula of biopsy cap prevents reflux unit for endoscope, including biopsy cap main part, biopsy cap lid, connecting portion, valve formula valve lamella structure, through setting up valve formula valve lamella structure in the internal lid of biopsy cap, and for elastic rubber material structure, preferred many valves are tricuspid valve lamella.

Like the design of the one-way valve flap of the heart tricuspid valve membrane, the valve flap can be opened passively under the extrusion action of biopsy forceps and other instruments on the valve when the biopsy forceps are inserted into the biopsy cap, so that the biopsy forceps can smoothly enter the biopsy cap and can be pulled out from the biopsy forceps, and the valve flap can be closed automatically when no biopsy forceps instrument exists in the biopsy cap, thereby preventing gas and liquid in the gastric cavity and the intestinal cavity from splashing.

Drawings

Fig. 1 is a front view of the valve flap structure of the present invention.

Fig. 2 is a side sectional view of the valve flap structure of the present invention.

Fig. 3 is a schematic structural diagram of the device of the present invention.

In the drawings: biopsy cap main part 1, biopsy cap lid 2, connecting portion 3, valvular valve lamella structure 4.

Detailed Description

The following describes the present invention in further detail with reference to examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

A valvular backflow preventing device of a biopsy cap for an endoscope comprises a biopsy cap main body 1, a biopsy cap cover body 2, a connecting part 3 and a valvular valve structure 4; the biopsy cap main body 1 is of a tubular structure, and is of a through pipe structure with the diameter of the lower end surface larger than that of the upper end surface; one end of the connecting part 3 is connected with the outer side surface of the bottom of the biopsy cap main body 1, and the other end is connected with the outer side surface of the biopsy cap cover body 2; the valve flap structure 4 is arranged on the side surface of the biopsy cap cover body 2 and is of an integrally formed structure with the biopsy cap cover body 2, and the bottom of the valve flap structure and the upper end surface of the biopsy cap main body 1 are detachably mounted.

Biopsy cap main part 1 is elastic rubber structure, and wherein, the up end is provided with the recess that an internal diameter extends to the center, the recess is opened with the lateral surface of valve formula valve structure 4 and is dismantled the joint and be connected.

The valve flap structure 4 is provided with an opening at one end and a multi-flap gathering structure along a conical cone at the other end; each valve is an elastic rubber structure valve, the adjacent valves are connected by movable gaps, and the cone angle of the conical cone body is set to be 40-80 degrees.

The utility model provides a device receives the squeezing action of biopsy forceps to the valve during use, and the valve lamella is opened passively, and biopsy forceps gets into the biopsy cap smoothly, can take out at biopsy forceps again, and when guaranteeing not having the biopsy forceps utensil in the biopsy cap, valve lamella self-closing to prevent that gas, the liquid splash in stomach cavity and the intestinal cavity comes out.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A valvular backflow prevention device of a biopsy cap for an endoscope is characterized in that: comprises a biopsy cap main body (1), a biopsy cap cover body (2), a connecting part (3) and a valve type valve structure (4); the biopsy cap main body (1) is of a tubular structure, and is of a through pipe structure with the diameter of the lower end surface larger than that of the upper end surface; one end of the connecting part (3) is connected with the outer side surface of the bottom of the biopsy cap main body (1), and the other end of the connecting part is connected with the upper surface of the biopsy cap cover body (2); the biopsy cap body (2) is a T-shaped cap body, and the middle of the biopsy cap body is provided with a hole structure; the valve flap structure (4) is arranged in the middle of the biopsy cap cover body (2) and is of an integral structure with the upper end surface of the T-shaped cap cover, and the other end of the valve flap structure is not in contact with the inner side wall of the T-shaped cap cover.

2. The valvular anti-reflux device for a biopsy cap for an endoscope of claim 1, wherein: the biopsy cap main body (1) is of an elastic rubber structure, wherein a step surface with the diameter smaller than that of the upper end surface is arranged at a position 1-10mm away from the upper end surface; the lower end part of the T-shaped cap of the biopsy cap cover body (2) can movably penetrate through the upper end or the lower end of the step surface.

3. The valvular anti-reflux device for a biopsy cap for an endoscope of claim 2, wherein: the valve type valve structure (4) is arranged to be an opening at the upper end, the lower end is a multi-valve gathering structure along a conical cone, and the top end of the conical cone is arranged inside the T-shaped cap and faces the upper end face of the biopsy cap main body (1).

4. The valvular anti-reflux device for a biopsy cap for an endoscope of claim 3, wherein: each valve is an elastic rubber structure valve, and the connection between the adjacent valves is movable gap connection and comprises three valves.

5. The valvular anti-reflux device for a biopsy cap for an endoscope of claim 3, wherein: the inner diameter of an opening on the upper end face of the valve flap structure (4) is 3-4.5 mm.

6. The valvular anti-reflux device for a biopsy cap for an endoscope of claim 3, wherein: the cone angle of the conical cone body is set to be 40-80 degrees.