CN217827798U

CN217827798U - Endoscope insertion tube

Info

Publication number: CN217827798U
Application number: CN202220905240.6U
Authority: CN
Inventors: 徐章松
Original assignee: Zhejiang Kuamai Medical Instrument Co ltd
Current assignee: Zhejiang Kuamai Medical Instrument Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-11-18
Anticipated expiration: 2032-04-19

Abstract

An endoscope insertion tube is disclosed. Belong to endoscope structure technical field, the external diameter of intubate can be dwindled to this structure, and then reduction in production cost, and simple structure, practical convenient. The endoscope comprises a multi-channel extrusion type insertion tube and a tip part arranged at the front end of the insertion tube, wherein the tip part is matched and connected with the insertion tube, the insertion tube comprises a flexible part, a transition part and a rigid part, the transition part is connected between the flexible part and the rigid part, the tip part is installed at the front end of the flexible part, and the rigid part is connected to an endoscope body.

Description

Endoscope insertion tube

Technical Field

The utility model relates to an endoscope technical field specifically is an endoscope inserting tube.

Background

The endoscope is a medical device integrating an image sensor, a lens, a light source and the like, and can enter the stomach through a mouth or enter the body through other natural pores to perform surgical treatment on a focus part.

Since the endoscope expands the channel when entering the channel, the smaller the size of the tip portion of the endoscope is, the less the injury to the patient is, and the requirements on the outer diameter of the endoscope, especially the outer diameter of the tip portion, are very strict.

The production process of the insertion part of the traditional endoscope is complex, a plurality of pipelines are required to be purchased independently, and then various pipelines, snake bone parts and accessories such as welding, gluing and the like are carried out, so that the labor cost is high.

In addition, the endoscope is generally high in cost in the treatment process, the endoscope cannot be reused after the use of the disposable endoscope is finished, and materials such as various pipelines are wasted greatly, wherein the endoscope comprises an expensive camera head assembly.

Accordingly, it is desirable to develop an endoscope insertion tube that solves the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an endoscope insert tube can reduce the external diameter of insert tube, and then reduction in production cost, and simple structure, and is practical convenient to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an endoscope insertion tube comprises a multi-channel extrusion type insertion tube and a tip part arranged at the front end of the insertion tube, wherein the tip part is matched and connected with the insertion tube, the insertion tube comprises a flexible part, a transition part and a rigid part, the transition part is connected between the flexible part and the rigid part, the tip part is arranged at the front end of the flexible part, and the rigid part is connected to an endoscope body.

As a further aspect of the present invention: the insert tube comprises a tube core and an outer wall layer, the outer wall layer is sleeved on the tube core, and an extrusion type multi-channel and a filling part are arranged in the tube core. The structure of the insert tube in the application is simpler and more convenient.

As a further aspect of the present invention: an elastic inner wall layer is arranged between the filling part and the outer wall layer. The elasticity of the insert tube is convenient for improve by the setting on inner wall layer in this application, reduces the stiff effect in the operation process.

As a further aspect of the present invention: the inner wall layer is a spring tube.

As a further aspect of the present invention: and an intermediate layer for improving the constraint and flexibility is arranged between the inner wall layer and the outer wall layer. The setting in intermediate level is convenient for improve the constraint and the flexibility of intubate in this application.

As a further aspect of the present invention: the middle layer is a woven net layer.

As a further aspect of the present invention: the outer wall layer is a biocompatible material layer. A practical purpose of the biocompatible material in this application is to reduce the rejection of the insertion tube by cellular tissue, wherein the biocompatible material comprises polyurethane or polyamide or thermoplastic polyurethane elastomer material or the like.

As a further aspect of the present invention: the filling part is filled with a biocompatible material.

Compared with the prior art, the beneficial effects of the utility model are that: compared with a plurality of independent channels in the prior art, the multi-channel extrusion type insertion tube is convenient for further reducing the outer diameter of the insertion tube and reducing the finish machining cost of the independent channels; the hardness of the insertion pipe is arranged in a sectional mode, and the operation and control are convenient compared with the uniform coiled pipe in the prior art.

Other features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

Drawings

FIG. 1 is a schematic cross-sectional view of an insertion tube according to an embodiment of the present invention;

figure 2 is a cross-sectional view of an insertion tube according to an embodiment of the present invention.

The figures are numbered: an insert tube 1, a tip portion 2, a flexible portion 11, a transition portion 12, a rigid portion 13, a die 101, an outer wall layer 102, extruded channels 1011, a fill portion 1012, an inner wall layer 103, and an intermediate layer 104.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the embodiment of the present invention, an endoscope insertion tube, as shown in fig. 1-2, includes a multi-channel extrusion type insertion tube 1, and a tip portion 2 disposed at the front end of the insertion tube 1, the tip portion 2 is connected to the insertion tube 1, the insertion tube 1 includes a flexible portion 11, a transition portion 12, and a rigid portion 13, the transition portion 12 is connected between the flexible portion 11 and the rigid portion 13, the tip portion 2 is installed at the front end of the flexible portion 11, and the rigid portion 13 is connected to the endoscope body.

In this embodiment, the insert tube 1 includes a die 101 and an outer wall layer 102, the outer wall layer 102 is sleeved on the die 101, and an extruded multi-channel 1011 and a filling part 1012 are provided in the die 101. The structure of the insertion tube 1 in the present application is simpler and more convenient.

In this embodiment, an elastic inner wall layer 103 is provided between the filling part 1012 and the outer wall layer 102. The arrangement of the inner wall layer 103 in this embodiment facilitates the improvement of the elasticity of the insertion tube and the reduction of the stiffness effect during the operation. In this embodiment, the inner wall layer is a spring tube.

In this embodiment, an intermediate layer 104 for improving the constraint and flexibility is further disposed between the inner wall layer 103 and the outer wall layer 102. The provision of the intermediate layer 104 in this embodiment facilitates improved constraint and flexibility of the insertion tube 1. In this embodiment, the intermediate layer 104 is a woven mesh layer.

In this embodiment, the outer wall layer 102 and the filling portion 1012 are both made of a biocompatible material. The practical purpose of the biocompatible material in this embodiment is to reduce the rejection of the insertion tube 1 by the cell tissue, wherein the biocompatible material comprises polyurethane or polyamide or thermoplastic polyurethane elastomer material, etc.

Compared with a plurality of independent channels in the prior art, the multi-channel extrusion type insertion tube 1 is convenient for further reducing the outer diameter of the insertion tube 1, the treatment pain of a patient can be reduced, and the finish machining cost of the independent channels is reduced; the hardness of the inserting pipe 1 is arranged in a sectional mode, and the operation and control are convenient compared with the uniform-system coiled pipe in the prior art.

The utility model provides an endoscope insert tube can reduce the external diameter of insert tube, and then reduction in production cost, and simple structure, and practical convenient, the reliability is high.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. An endoscope insertion tube comprising a multi-channel extrusion type insertion tube and a distal end portion provided at a distal end of the insertion tube, the distal end portion being coupled to the insertion tube, the insertion tube comprising a flexible portion, a transition portion and a rigid portion, the transition portion being connected between the flexible portion and the rigid portion, the distal end portion being attached to a distal end of the flexible portion, and the rigid portion being connected to an endoscope main body.

2. The endoscope insertion tube of claim 1, wherein the insertion tube comprises a tubular core and an outer wall layer, the outer wall layer being sleeved over the tubular core, the tubular core having the extruded multi-channel and the filler portion disposed therein.

3. The endoscope insertion tube of claim 2, wherein an elastic inner wall layer is provided between the filling portion and the outer wall layer.

4. The endoscope insertion tube of claim 3, wherein the inner wall layer is a spring tube.

5. The endoscope insertion tube of claim 3, wherein an intermediate layer for increasing the constraint and flexibility is further provided between the inner wall layer and the outer wall layer.

6. The endoscope insertion tube of claim 5, wherein the intermediate layer is a woven mesh layer.

7. An endoscope insertion tube according to any of claims 2-6 and wherein said outer wall layer is a layer of biocompatible material.

8. An endoscope insertion tube according to any of claims 2-6 and wherein said filling portion is filled with a biocompatible material.