CN213309567U

CN213309567U - Steel wire adjusting device for endoscope and endoscope

Info

Publication number: CN213309567U
Application number: CN202021040914.8U
Authority: CN
Inventors: 关登海; 姚鹏
Original assignee: Hangzhou Wuchuang Photoelectric Co ltd
Current assignee: Hangzhou Wuchuang Photoelectric Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-06-01
Anticipated expiration: 2030-06-08

Abstract

The utility model provides a steel wire adjusting device for endoscope includes adjusting device shell and length adjustment spare at least, and length adjustment spare is connected with the adjusting device shell, and the length adjustment spare stretches out from the adjusting device shell in adjustable. The length of the steel wire for the endoscope can be compensated and adjusted by adjusting the extending length of the length adjusting piece. The utility model also provides an endoscope, at least including endoscope handle, pipe, steel wire controlling means and above-mentioned steel wire adjusting device for endoscope. By adjusting the length of the extending part of the length adjusting piece, the deformation of the adjusting steel wire can be compensated, and the original operation hand feeling of the endoscope is kept.

Description

Steel wire adjusting device for endoscope and endoscope

Technical Field

The utility model relates to the field of medical equipment, especially a steel wire adjusting device and endoscope for endoscope.

Background

An endoscope is a common modern medical apparatus, and generally as shown in fig. 5, the endoscope includes an endoscope handle, a catheter is connected to the endoscope handle, a head cap is disposed at the other end of the catheter, a component for receiving image signals is disposed in the head cap, and one end of the catheter having the head cap is bendable, so that the end of the catheter can be bent to a specific angle under the action of external force. When the endoscope is used, a doctor inserts the catheter into a human body, and because the structure of the internal channel of the human body such as the urethra or the intestinal tract is complex, the doctor needs to adjust the orientation of the end part of the catheter through the adjusting device on the handle of the endoscope, so that the catheter moves along the extending direction of the internal channel in the inserting process.

In the prior art, the orientation change of the end part of the catheter is realized by a direct pulling mode, in the prior art, a steel wire is arranged in an endoscope handle, and a head end cap is pulled by the steel wire, so that the end part of one side of the catheter, which is provided with the head end cap, is bent to a specific angle.

Because the endoscope is small in overall volume, the diameter of the steel wire used for drawing the guide pipe to bend in the endoscope is small. Moreover, when the endoscope is used, the orientation of the end part of the catheter needs to be adjusted repeatedly, so that the change frequency of the tensile force applied to the steel wire is high, and the steel wire can deform after being used for multiple times. The endoscope is a precise medical instrument, and often needs a doctor to operate and control according to the use experience, and once the steel wire has the problem of deformation, the operation precision of the endoscope changes, and the operation hand feeling of the endoscope also changes, so that the doctor is difficult to adapt in a short time.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the steel wire in the endoscope is influenced by the changing tension for a long time to cause the steel wire to deform, so that the control hand feeling of the endoscope changes, and the use precision of the endoscope is influenced.

In order to solve the technical problem, the utility model provides a technical scheme as follows:

the utility model discloses at first provide a wire adjusting device for endoscope, include adjusting device shell and length adjustment spare at least, length adjustment spare with the adjusting device shell is connected, just length adjustment spare is followed the length that stretches out in the adjusting device shell is adjustable.

Preferably, the length adjustment member includes at least an adjustment bolt, and the adjustment bolt is in threaded connection with the adjustment device housing.

Furthermore, an elastic piece installation cavity is formed in the adjusting device shell, and an elastic piece which can be compressed by the adjusting bolt and can be moved is arranged in the elastic piece installation cavity.

Furthermore, a sliding plate is connected between the adjusting bolt and the elastic piece, and the sliding plate is connected with the elastic piece installation cavity in a sliding mode.

Preferably, one side of the adjusting device shell, which faces away from the adjusting bolt, is provided with a steel wire fixing hole, and the steel wire fixing hole is communicated with the elastic piece mounting cavity.

The utility model also provides an endoscope includes at least: an endoscope handle, the endoscope handle being detachable; one end of the guide pipe is fixedly connected with the endoscope handle, the other end of the guide pipe is provided with a head end cap, and one end of the guide pipe, which is provided with the head end cap, can be bent; the steel wire control device is arranged in the endoscope handle, and a steel wire is connected between the steel wire control device and the head end cap; the wire adjusting device (1) for the endoscope is positioned in a handle (2) and is connected in series to the wire (3).

Preferably, the steel wire control device comprises a rotary disc, and the steel wire is wound on the outer circumference of the rotary disc.

The utility model has the advantages that: when the steel wire used for adjusting the bending angle of the end part of the conduit is subjected to length deformation, the actual bending degree of the end part of the conduit adjusted by the steel wire control device can be changed. Can be through the adjustment this moment the utility model discloses a length control spare among the steel wire adjusting device shortens length of length control spare extension to the length deformation of compensation steel wire, and then the feel when guaranteeing the doctor and using steel wire adjusting device is unchangeable, and increases the use accuracy of endoscope. Moreover, the utility model discloses a steel wire adjusting device for endoscope's overall structure is very simple, low cost, and it is also very convenient to install.

Drawings

FIG. 1 is a schematic view showing a preferred embodiment of a wire adjusting device for an endoscope;

FIG. 2 is a sectional view showing a first example of use of the wire adjusting apparatus for an endoscope;

FIG. 3 is a sectional view showing a second example of use of the wire adjusting apparatus for an endoscope;

FIG. 4 is a schematic view of an embodiment of an endoscope;

FIG. 5 shows a schematic view of an endoscope;

description of reference numerals: 1-endoscope wire adjusting device, 11-adjusting device shell, 110-wire fixing hole, 12-adjusting bolt, 13-elastic piece, 14-sliding plate, 2-endoscope handle, 3-wire, 31-adjusting wire, 4-wire control device, 5-catheter, 51-head end cap.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", 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 in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.

The present invention first provides a wire adjusting device 1 for an endoscope, a preferred embodiment of which is shown in fig. 1 to 3, comprising at least an adjusting device housing 11 and a length adjusting member connected to the adjusting device housing 11, wherein the length of the length adjusting member protruding from the adjusting device housing 11 is adjustable. In the preferred embodiment, the length adjustment member comprises an adjustment bolt 12, the adjustment bolt 12 being in threaded connection with the adjustment device housing 11, the end of the protruding section of the adjustment bolt 12 being used for attachment of the steel wire 3. According to the characteristics of the threaded connection, macroscopically, when the adjusting bolt 12 is rotated, the change of the length of the protruding portion of the adjusting bolt 12 is continuous, and the length can be adjusted as required. Of course, the length adjusting piece can also be in other design forms, such as the cooperation of a positioning pin, the cooperation of a buckle clamping groove, the cooperation of an anti-skid groove and the like, and the requirement can be met as long as the extension length of the length adjusting piece can be adjusted.

Furthermore, an elastic piece mounting cavity is arranged inside the adjusting device shell 11, an elastic piece 13 is arranged in the elastic piece mounting cavity, and the elastic piece mounting cavity is communicated with a threaded hole connected with the adjusting bolt 12. As shown in fig. 2 and 3, the adjusting bolt 12 can compress the elastic member 13 after moving to the elastic member installation cavity, and when the adjusting bolt 12 is positioned, the elastic member 13 can prop against the adjusting bolt 12 to provide an early warning force for the adjusting bolt 12, so as to prevent the adjusting bolt 12 from moving due to looseness.

Further, a sliding plate 14 is arranged between the adjusting bolt 12 and the elastic element 13, the sliding plate 14 is slidably connected with the elastic element mounting cavity, the sliding plate 14 can be driven to move when the adjusting bolt 12 moves, and the sliding plate 14 compresses the elastic element 13 again. The design is beneficial to more uniform distribution of the force of the elastic part 13 reacting on the adjusting bolt 12, so that the movement of the adjusting bolt 12 in the process of screwing the adjusting bolt 12 is more stable, the sliding of the elastic part 13 in the direction of the reaction force of the adjusting bolt 12 is prevented, and after the adjusting bolt 12 is fixed, the early warning force applied to the adjusting bolt 12 by the elastic part 13 is more uniformly distributed.

In order to facilitate the connection of the steel wire, through holes for fixing the steel wire are formed in the adjusting device shell 11 and the length adjusting piece, wherein the steel wire fixing hole 110 for fixedly connecting the steel wire on the adjusting device shell 11 is communicated with the elastic piece mounting cavity.

The utility model also provides an endoscope, as shown in fig. 4 and 5, include detachable endoscope handle 2, steel wire controlling means 4, pipe 5 and foretell steel wire adjusting device 1 for endoscope at least, the one end and the endoscope handle 2 fixed connection of pipe 5, the other end are equipped with head end cap 51, and the tip flexible that pipe 5 was equipped with head end cap 51, steel wire adjusting device 1 and steel wire controlling means 4 for endoscope all locate in endoscope handle 2. The steel wire 3 is connected between the catheter 5 and the steel wire control device 4, and the steel wire adjusting device 1 for the endoscope is connected in series to the middle portion of the steel wire 3.

When adjusting steel wire 31 and taking place length deformation, only need adjust this deformation of length compensation of length adjustment spare extension, can keep adjusting steel wire 31 around the deformation steel wire controlling means 4 corresponding when being in same position the crookedness of pipe end the same, keep steel wire controlling means 4's regulation sensitivity simultaneously.

Preferably, the steel wire control device 4 comprises a rotary table, the steel wire 3 is wound on the rotary table, the rotary table can be rotated to pull the steel wire, and the steel wire control device is simple in structure and convenient to operate. It is of course also possible to use a device like a slider for pulling the wire 3, a rotating disc being only a preferred embodiment.

In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A wire adjusting device (1) for endoscopes, comprising at least an adjusting device housing (11) and a length adjusting member, wherein the length adjusting member is connected to the adjusting device housing (11), and the length of the length adjusting member protruding from the adjusting device housing (11) is adjustable.

2. An endoscope wire adjustment device (1) according to claim 1, characterized in that the length adjustment member comprises at least an adjustment bolt (12), the adjustment bolt (12) being threadedly connected with the adjustment device housing (11).

3. An endoscope wire adjustment device (1) according to claim 2, characterized in that the adjustment device housing (11) is provided with an elastic member mounting cavity in which an elastic member (13) is provided that can be compressed by the movable adjustment bolt (12).

4. An endoscope wire adjusting device (1) according to claim 3, characterized in that a slide plate (14) is connected between the adjusting bolt (12) and the elastic member (13), and the slide plate (14) is slidably connected with the elastic member mounting cavity.

5. An endoscope wire adjustment device (1) according to claim 3, characterized in that a side of the adjustment device housing (11) facing away from the adjustment bolt (12) is provided with a wire fixing hole (110), and the wire fixing hole (110) communicates with the elastic member mounting cavity.

6. An endoscope, characterized in that it comprises at least:

an endoscope handle (2);

one end of the guide tube (5) is fixedly connected with the endoscope handle (2), the other end of the guide tube is provided with a head end cap (51), and one end of the guide tube (5) provided with the head end cap (51) can be bent;

the steel wire control device (4), the steel wire control device (4) is arranged in the endoscope handle (2), and a steel wire (3) is connected between the steel wire control device (4) and the head end cap;

an endoscope wire adjusting device (1) according to any one of claims 1-5, said endoscope wire adjusting device (1) being located inside a handle (2) and being connected in series to said wire (3).

7. An endoscope according to claim 6, characterized in that said wire control means (4) comprises a turntable, said wire (3) being wound around the outer circumference of said turntable.