CN218074932U

CN218074932U - Endoscope inserting tube and endoscope with same

Info

Publication number: CN218074932U
Application number: CN202221694283.0U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shanghai Laiyin Precision Pipe Co ltd
Current assignee: Shanghai Laiyin Precision Pipe Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-12-20
Anticipated expiration: 2032-07-04

Abstract

The utility model belongs to the field of medical equipment, relate to the endoscope field, specifically an endoscope insert tube and have its endoscope, the endoscope includes operation portion and flexion, the insert tube sets up the operation portion with between the flexion, the insert tube includes spring tube, braided tube, cortex and glue layer, the braided tube sets up the outside of spring tube, the cortex sets up the braided tube outside, the glue layer sets up the braided tube with between the cortex. The utility model discloses be provided with the glue layer for the cortex is connected more firmly with inboard tubular metal resonator, has avoided the layering defect of cortex and inboard tubular metal resonator, has still improved the controlled nature of inserted tube, is favorable to forward transmission moment, has prolonged the life of endoscope.

Description

Endoscope inserting tube and endoscope with same

Technical Field

The utility model discloses a belong to the medical instrument field, relate to the endoscope field, specifically be an endoscope inserted tube, endoscope inserted tube processing method and have its endoscope.

Background

A flexible endoscope is a commonly used medical instrument, and is composed of an insertion portion, a bending portion, and a tip portion provided at a front end of an operation portion, wherein the insertion portion, the bending portion, and the tip portion are combined into an insertion tube. Enters the human body through a natural pore canal of the human body or a small incision made by an operation, and when the endoscope is used, the inserting tube of the endoscope is guided into an organ to be examined, so that the disease of the relevant part can be directly observed. Endoscopic surgery has the advantages of small injury, light pain, quick recovery and the like.

The insert tube of the existing soft endoscope is composed of a spring tube, a braided tube and an outer skin layer three-layer structure, wherein the outer skin layer is directly wrapped outside the braided tube, and after the endoscope is used for a long time, the outer side plastic layer and the inner side metal tube layer are easily layered, so that the controllability of the insert tube of the endoscope is poor, the pushing performance is reduced or lost, and the endoscope cannot be normally used.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the layering of the endoscope insertion tube cortex and inboard tubular metal resonator at prior art center and the defect that insertion tube propelling movement performance reduces or loses to an endoscope insertion tube has been proposed.

In order to solve the technical problem, the utility model provides an endoscope insert tube, the endoscope includes operating portion and flexion, the insert tube sets up the operating portion with between the flexion, the insert tube includes spring tube, braided tube, cortex and glue layer, the braided tube sets up the outside of spring tube, the cortex sets up the braided tube outside, the glue layer sets up the braided tube with between the cortex.

Further, the spring pipe is helical structure, the spring pipe includes that a plurality of continuous spiral rings constitute, be provided with the equidistant gap between the spiral ring, the spring pipe is made by the metal material, specifically is one of stainless steel, copper or light alloy.

Further, it is netted braided structure to weave the pipe, it is woven by the multi beam weaving silk and forms to weave the pipe, and the weaving mode can adopt twill weave weaving mode, and it is big more to weave longitude and latitude density, then weaves the pliability of pipe better.

Further, the spring tube and the braided tube form an integral structure through a welding mode, and the welding mode comprises soldering or laser welding.

Further, the outer skin layer is made of a resin material, and specifically is one or a combination of a plurality of fluorine resins, polyurethane, polyvinyl chloride, polysulfone or polyamide.

Further, the glue layer is one of epoxy resin, polyurethane and nylon.

The utility model also provides an endoscope, have the endoscope insert tube.

In order to achieve the above object, the present invention provides a method for processing an insertion tube of an endoscope, which comprises:

s1, selecting a stainless steel spring tube, a stainless steel braided tube and a polyurethane outer skin layer which meet the technical parameter requirements, and taking an epoxy resin glue layer as a raw material for manufacturing an insertion tube;

s2, removing oil stains and dust on the surfaces of the spring tube and the braided tube before assembly to ensure that the surfaces of the spring tube and the braided tube are clean, and welding the two ends of the spring tube and the braided tube into a whole by using a laser welding machine for later use;

s3, enabling the semi-finished product welded in the step S2 to pass through an auxiliary core rod, ensuring that the spring tube and the braided tube are as straight as possible, uniformly coating epoxy resin glue on the outer surface of the braided tube, ensuring that the epoxy resin glue completely permeates into braided wires of the braided tube, performing secondary glue supplementing on a glue-deficient part after the epoxy resin glue is completely cured, and performing the next step after the glue is completely cured;

s4, placing a polyurethane outer skin layer on the outer side of the semi-finished product in the step S3, heating at high temperature to enable the polyurethane outer skin layer to shrink, wherein the shrunk polyurethane outer skin layer can tightly wrap the glue layer and is firmly connected into a whole;

and S5, polishing, coating and printing the surface of the insertion tube, and inspecting the finished insertion tube product after the surface treatment is finished to finish the final insertion tube preparation.

The utility model discloses beneficial effect:

the utility model provides an endoscope insert tube is provided with the glue layer, the even coating of glue layer is in weave the pipe with between the ectoderm, the glue layer has characteristics such as corrosion-resistant, ageing-resistant, that the adhesive force is strong, mechanics is stable, the solidification is convenient for the ectoderm is more firm with being connected of inboard tubular metal resonator, has avoided the layering defect of ectoderm and inboard tubular metal resonator, has still improved the controlled nature of insert tube, is favorable to forward transmission moment, thereby has improved the propelling movement performance of insert tube, has prolonged the life of endoscope.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic structural view of an endoscope provided by the present invention;

FIG. 2 is a schematic view of the structure of an insertion tube for an endoscope of the present invention;

FIG. 3 is a partially enlarged view of an insertion tube A of the endoscope of the present invention;

FIG. 4 is a transverse cross-sectional view of an insertion tube of an endoscope in accordance with the present invention;

FIG. 5 is a longitudinal cross-sectional view of an endoscope insertion tube of the present invention;

FIG. 6 is a schematic view of the spring tube of an insertion tube of an endoscope of the present invention;

FIG. 7 is a schematic structural view of a braided tube of an endoscope insertion tube according to the present invention;

FIG. 8 is a schematic structural view of an outer skin layer of an insertion tube of an endoscope according to the present invention;

fig. 9 is a schematic view of the structure of an auxiliary core rod for an endoscope insertion tube processing method of the present invention.

In the figure, 1, an endoscope; 2. an operation unit; 3. a bending section; 4. an insertion tube; 5. a spring tube; 6. weaving a tube; 7. a sheath tube; 8. a glue layer; 9. an auxiliary mandrel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "distal end", "proximal end", "outer", "inner", "parallel", "up and down", "left and right", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses as shown in fig. 1 to 9 do the utility model provides an endoscope insert tube, endoscope 1 includes operation portion 2 and flexion 3, insert tube 4 sets up operation portion 2 with between the flexion 3, insert tube 4 includes spring tube 5, braided tube 6, cortex 7 and glue layer 8, braided tube 6 sets up the outside of spring tube 5, cortex 7 sets up the braided tube 6 outside, glue layer 8 sets up braided tube 6 with between the cortex 7.

In this embodiment, further, the spring tube 5 is a spiral structure, the spring tube 5 includes that a plurality of continuous spiral rings constitute, be provided with equidistant gap between the spiral ring, the spring tube is made by metal material, specifically is one of stainless steel, copper or light alloy.

In this embodiment, furthermore, it is netted weaving structure to weave pipe 6, it forms to weave pipe 6 to weave by the multi beam weaving silk, and the weaving mode can adopt twill weave weaving mode, and it is bigger to weave longitude and latitude density, and then the pliability that weaves the pipe is better.

In this embodiment, the spring tube 5 and the braided tube 6 are formed into an integral structure by welding, which includes soldering or laser welding.

In this embodiment, further, the outer skin layer 7 is made of a resin material, specifically, one or a combination of more of fluorine resin, polyurethane, polyvinyl chloride, polysulfone, and polyamide.

In this embodiment, the glue layer 8 is one of epoxy resin, polyurethane, and nylon.

The utility model also provides an endoscope 1, have endoscope 1 insert tube 4.

In order to achieve the above purpose, the utility model provides a processing method of an endoscope insertion tube, which comprises the following steps:

s1, selecting a stainless steel spring tube 5, a stainless steel braided tube 6, a polyurethane outer skin layer 7 and an epoxy resin glue layer 8 which meet the technical parameter requirements as raw materials for manufacturing an insertion tube 4;

s2, before assembly, removing oil stains and dust on the surfaces of the spring tube 5 and the braided tube 6 to ensure that the surfaces of the spring tube 5 and the braided tube 6 are clean, and welding the two ends of the spring tube 5 and the two ends of the braided tube 6 into a whole by using a laser welding machine for later use;

s3, enabling the semi-finished product welded in the step S2 to pass through an auxiliary core rod 9, ensuring that the spring tube 5 and the braided tube 6 are straight as much as possible, uniformly coating epoxy resin glue on the outer surface of the braided tube 6, ensuring that the epoxy resin glue completely permeates into braided wires of the braided tube 6, performing secondary glue supplementing on a glue-deficient part after the epoxy glue is completely cured, and performing the next step after the glue is completely cured;

s4, placing a polyurethane outer skin layer 7 on the outer side of the semi-finished product in the step S3, heating at high temperature to enable the polyurethane outer skin layer 7 to shrink, wherein the shrunk polyurethane outer skin layer 7 can tightly wrap a glue layer 8, and meanwhile, the connection is firm to form a whole;

s5, polishing, coating and printing the surface of the insertion tube 4, and inspecting the finished insertion tube 4 after the surface treatment to finish the preparation of the final insertion tube 4.

It should be understood that the above-described embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the present invention in any way. Variations and modifications in other variations and equivalent embodiments may occur to those skilled in the art upon reading the foregoing description, or may be modified to practice equivalents thereof. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. An endoscope insertion tube, characterized in that, the endoscope includes operation portion and flexion, the insertion tube sets up the operation portion with between the flexion, the insertion tube includes spring tube, braided tube, cortex and glue layer, the braided tube sets up the outside of spring tube, the cortex sets up the braided tube outside, the glue layer sets up the braided tube with between the cortex.

2. An endoscope insertion tube according to claim 1, characterized in that said spring tube is of a helical structure, said spring tube comprising a plurality of consecutive helical rings, said rings being provided with equidistant gaps therebetween, said spring tube being made of a metallic material, in particular one of stainless steel, copper or a light alloy.

3. The endoscope insertion tube of claim 1, wherein the braided tube is a mesh-like braided structure, the braided tube is braided by a plurality of strands of braided filaments, the braiding is a twill weave, and the greater the warp and weft density, the better the flexibility of the braided tube.

4. An endoscope insertion tube according to claim 1 and wherein said spring tube is integrally formed with said braided tube by welding means including soldering or laser welding.

5. An endoscope insertion tube according to claim 1, characterized in that said outer skin layer is made of a resin material, in particular a combination of one or more of a fluororesin, polyurethane, polyvinyl chloride, polysulfone or polyamide.

6. The endoscope insertion tube of claim 1, wherein the glue layer is one of epoxy, polyurethane, and nylon.

7. An endoscope, characterized by comprising the endoscope insertion tube of any of claims 1 to 6.