CN217938173U

CN217938173U - Endoscope light pipe with anti-stretching structure

Info

Publication number: CN217938173U
Application number: CN202221589951.3U
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: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-12-02
Anticipated expiration: 2032-06-24

Abstract

The utility model belongs to the field of medical equipment, relates to the field of endoscopes, and particularly relates to an endoscope light pipe with an anti-tensile structure, which comprises an inner pipe layer, an outer protective pipe layer, a braided pipe layer and a tensile core wire; the inner tube layer is of a spiral structure; the outer protective layer is a flexible hose; the woven tube layer is of a net-shaped woven structure and is arranged between the inner tube layer and the outer protective tube layer; the Kevlar wire is arranged in the woven tube layer. The utility model discloses a set up the tensile heart yearn in the weaving tube layer, utilize kevlar to act as go-between to strengthen the tensile strength and the anti tear strength of light pipe for the light pipe body is when receiving powerful pulling force, difficult fracture and deformation.

Description

Endoscope light pipe with anti-stretching structure

Technical Field

The utility model discloses a belong to the medical instrument field, relate to the endoscope field, specifically are an endoscope light pipe with stretch-proofing structure.

Background

The electronic flexible endoscope is a medical electronic optical instrument which can be inserted into the body cavity and internal organ cavity of human body to make direct observation, diagnosis and treatment by integrating high-precision techniques of light collection, machine and electricity, etc. It is connected with other devices in the endoscope system, and finally outputs real-time intracavity images on a monitor for doctors to observe and diagnose. The electronic flexible endoscope consists of a connecting part, an operating part, an inserting part and a bending part. Wherein, the connecting part light guide hose generally comprises components such as a CCD, a light guide bundle, a water/air pipe, a suction pipe, a key and the like.

In the operation process, because the doctor needs to rotate and move the endoscope ceaselessly to adjust the bending direction and the bending angle, thereby the light guide hose also frequently receives the effect of tensile stress when using, causes the inside light guide bundle optic fibre of light guide hose to break easily, and still can lead to inside other subassemblies to shift, warp, influences image imaging quality and leaded light portion life.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that endoscope light pipe stretch-proofing ability among the prior art is not enough to cause the damage of the light pipe inner assembly to an endoscope light pipe with stretch-proofing structure has been proposed.

In order to solve the technical problem, the utility model provides an endoscope light pipe with an anti-tensile structure, which comprises an inner pipe layer, an outer protective layer, a braided pipe layer and a tensile core wire; the inner tube layer is of a spiral structure; the outer protective layer is a flexible hose; the woven tube layer is of a net-shaped woven structure and is arranged between the inner tube layer and the outer protective tube layer; the tensile core wire is arranged in the woven tube layer.

Furthermore, the inner pipe layer is made of stainless steel.

Furthermore, the material of the outer protective layer is one of fluororesin, polyurethane, polyvinyl chloride, polysulfone or polyamide.

Further, the material of the braided tube layer is one of stainless steel, nickel titanium or light alloy.

Furthermore, the inner pipe layer and the braided pipe layer are fixed in a welding mode, and the outer protective layer and the braided pipe layer are fixed in a bonding mode.

Furthermore, the tensile core wires are Kevlar wires, the number of the Kevlar wires is 2, and the 2 Kevlar wires are uniformly distributed in the weaving tube layer in an annular array and are fixed in a welding or bonding mode.

The utility model has the advantages that: the utility model provides an endoscope light pipe with anti tensile structure through setting up the tensile heart yearn in the woven tube layer, the tensile heart yearn adopts the kevlar material to make, utilizes the stretching resistance and the tear strength of kevlar bracing wire enhancement light pipe for the light pipe body is when receiving powerful pulling force, difficult fracture and deformation.

Drawings

The invention is further described below with reference to the following figures and examples:

fig. 1 is a schematic view of an endoscopic light guide tube with a stretch resistant structure according to the present invention;

fig. 2 is an enlarged structural schematic diagram of a local part a of the light guide tube of the endoscope with the stretch-proofing structure of the present invention;

fig. 3 is a schematic sectional view of the structure of a light pipe of an endoscope having an anti-stretching structure according to the present invention;

FIG. 4 is a schematic view of a connection structure between a light guide woven tube layer and a tensile core wire of an endoscope with a tensile structure according to the present invention;

fig. 5 is a schematic cross-sectional view of the endoscope light pipe with an anti-stretching structure of the present invention.

In the figure, 1, an inner tube layer; 2. weaving a tube layer; 3. an outer protective layer; 4. a tensile core wire.

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 efforts all 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", "axial", "up and down", "left and right", "center", "inner", "one end", and the like 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 be further noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should 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. Please refer to fig. 1 to 3, which illustrate an endoscope light pipe with a stretch-proof structure according to the present invention, including an inner pipe layer 1, an outer protection layer 2, a braided pipe layer 3 and a tensile core wire 4; the inner pipe layer 1 is of a spiral structure; the outer protective layer 2 is a flexible hose; the braided tube layer 3 is of a net-shaped braided structure, and the braided tube layer 3 is arranged between the inner tube layer 1 and the outer protective tube 2; the tensile core 4 is arranged in the braided tube layer 3.

In this embodiment, the material of the inner tube layer 1 is further stainless steel.

In this embodiment, the material of the outer protective layer 2 is one of fluororesin, polyurethane, polyvinyl chloride, polysulfone, and polyamide. Preferably a fluororesin material having excellent chemical stability, corrosion resistance, sealability, non-tackiness and aging resistance, and the outer protective layer 2 thus manufactured is advantageous for protecting the light pipe.

Further, the material of the braided tube layer 3 is one of stainless steel, nickel titanium or light alloy. Preferably, the stainless steel material is used, the weaving mode can adopt a twill weave weaving mode, and the larger the weaving warp and weft density is, the better the flexibility of the weaving tube layer 3 is.

Further, the inner pipe layer 1 and the braided pipe layer 3 are fixed in a welding manner, and the outer protection layer 2 and the braided pipe layer 3 are fixed in an adhesion manner.

Furthermore, the tensile core wire 4 is a Kevlar wire, the number of the Kevlar wires is 2, and the 2 Kevlar wires are uniformly distributed in the weaving tube layer in an annular array and are fixed in a welding or bonding mode.

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. Other variations and modifications in different forms, or equivalent embodiments modified by the teachings herein, may occur to those skilled in the art upon reading the foregoing description. 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 substance of the present invention all still belong to the scope of the technical solution protection of the present invention.

Claims

1. An endoscope light pipe with a tensile structure is characterized by comprising an inner pipe layer, an outer protective layer, a braided pipe layer and a tensile core wire; the inner pipe layer is of a spiral structure; the outer protective layer is a flexible hose; the woven tube layer is of a net-shaped woven structure and is arranged between the inner tube layer and the outer protective tube layer; the tensile core wire is arranged in the woven tube layer.

2. The endoscope light pipe with stretch-resistant structure of claim 1, wherein the inner pipe layer is made of stainless steel.

3. The endoscope light pipe of claim 1, wherein the outer protective layer is made of one of fluororesin, polyurethane, polyvinyl chloride, polysulfone or polyamide.

4. The endoscopic light pipe with stretch resistant structure of claim 1, wherein said woven tube layer is made of one of stainless steel, nitinol or lightweight alloy.

5. The endoscope light pipe with the stretch-resistant structure of claim 1, wherein the inner pipe layer and the woven pipe layer are fixed by welding, and the outer protective layer and the woven pipe layer are fixed by bonding.

6. The endoscope light pipe with the tensile structure according to claim 1, wherein the tensile core wire is Kevlar wire, the number of the Kevlar wire is 2, and the 2 Kevlar wires are uniformly distributed in the woven tube layer in a circular array and fixed by welding or bonding.