CN218978847U

CN218978847U - Endoscope traction wire limiting structure

Info

Publication number: CN218978847U
Application number: CN202222139030.3U
Authority: CN
Inventors: 马晓龙; 赵永标
Original assignee: Sichuan Naite Photoelectric Technology Co ltd
Current assignee: Sichuan Naite Photoelectric Technology Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2023-05-09
Anticipated expiration: 2032-08-15

Abstract

The utility model discloses a limiting structure of an endoscope traction wire, which comprises a single-cavity insertion tube, a traction wire, metal sleeves, metal tubules and a control end, wherein the number of the metal sleeves is 2, the 2 metal sleeves are respectively fixed at ports at two ends of the single-cavity insertion tube, the metal tubules are fixed on the tube walls of the 2 metal sleeves and the tube walls of the single-cavity insertion tube, one end of the traction wire is connected with a handle, and the other end of the traction wire passes through the metal tubules and then is connected with the control end.

Description

Endoscope traction wire limiting structure

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an endoscope traction wire limiting structure.

Background

The electronic endoscope is a medical instrument which can be inserted into a human body cavity and an internal cavity of an organ to directly observe, diagnose and treat, imaging of the electronic endoscope mainly depends on a CMOS image sensor in a tip, in order to increase an imaging angle, one end of the electronic endoscope needs to be fixed in a handle through a traction wire, the other end of the electronic endoscope passes through an insertion tube and a snake bone and is fixed at the front end of the snake bone, the tip is driven to bend after the snake bone is connected with the tip, and meanwhile the traction wire needs to be limited in the insertion tube, so that other cable parts are prevented from being wound or damaged when the traction wire moves.

Disclosure of Invention

The utility model provides a limiting structure of an endoscope traction wire, which aims to solve the problems that the traction wire in an electronic endoscope is not easy to penetrate into an insertion tube and is easy to puncture the wall of an insertion tube cavity after penetrating.

The utility model is realized by the following technical scheme:

the utility model provides an endoscope traction wire limit structure, includes single-cavity way insert tube, traction wire, metal sleeve pipe, metal tubule and control end, metal sleeve pipe has 2, and 2 metal sleeve pipes are fixed in the port department at single-cavity way insert tube both ends respectively, metal tubule is fixed in on the pipe wall of 2 metal sleeve pipes and the pipe wall of single-cavity way insert tube, traction wire one end connection handle, traction wire other end pass behind the metal tubule and are connected with the control end.

Further, 2 metal tubules are fixed in the Shan Qiang inserting pipe and are oppositely arranged, and 1 traction wire penetrates through each metal tubule.

Further, the control end comprises a bending part and a tip, the traction wire penetrates through the metal tubule and then is connected with the bending part, and the bending part is fixedly connected with the tip.

Further, the metal sleeve is a cylindrical sleeve, a plurality of notches are symmetrically formed in the wall of the metal sleeve, the metal tubules are fixed at the notches of the metal sleeve, and one end of the metal sleeve, which is not provided with the notches, is connected with the port of the single-cavity insertion tube.

Preferably, the ports at two ends of the Shan Qiang inserting pipe are flared, and the 2 metal sleeves are respectively sleeved at the flares at two ends of the single-cavity inserting pipe.

In another preferred mode, 4 notches are formed in the wall of the 1 metal sleeve, the peripheral edges of the 4 notches are arranged at equal intervals and are perpendicular to connecting lines of the 2 opposite notches, and the 4 notches are all fixed with the metal tubule.

Further, the length of the metal tubule is longer than that of a single-cavity insertion pipe with two ends connected with the metal sleeve.

Further, the outer diameter of the metal thin tube is 0.5mm, the inner diameter of the metal thin tube is 0.3mm, and the inner wall of the metal thin tube is a smooth inner wall.

The utility model has the beneficial effects that:

(1) The limiting structure of the traction wire of the endoscope provided by the utility model adopts the special metal tubule as the limit of the traction wire in the insertion tube, so that the threading of the traction wire is more convenient, and the fixing of the metal tubule is safer and more reliable, so that the movement performance of the internal traction wire is not influenced;

(2) The limiting structure of the traction wire of the endoscope provided by the utility model adopts the single-cavity insertion tube, so that the problem of winding caused by the movement of the traction wire in a channel is avoided, and meanwhile, the production and the manufacture are simpler, and the cost is lower;

(3) The limiting structure of the traction wire of the endoscope is characterized in that the limiting structure of the traction wire of the endoscope is formed by fixing the metal sleeves at two ends of the insertion tube of the single-cavity channel, and the ends of the metal tubules of the limiting traction wire are fixed on the two metal sleeves, so that the bending of the insertion tube driven by the movement of the traction wire is avoided, and the operation performance is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a limiting structure for a pull wire of an endoscope in accordance with the present utility model;

FIG. 2 is a second cross-sectional view of an endoscope pull wire limiting structure according to the present utility model;

FIG. 3 is a schematic view of a metal sleeve connection of an endoscope pull wire limiting structure according to the present utility model;

in the figure, a 1-first traction wire, a 2-second traction wire, a 3-first metal sleeve, a 4-single-cavity insertion tube, a 5-first metal tubule, a 6-second metal tubule, a 7-second metal sleeve, an 8-bending part and a 9-tip head are arranged.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.

Example 1

Referring to fig. 1, an endoscope traction wire limiting structure comprises a single-channel insertion tube 4, a first traction wire 1, a second traction wire 2, a first metal sleeve 3, a second metal sleeve 7, a first metal thin tube 5, a second metal thin tube 6 and a control end, wherein the first metal sleeve 3 is fixed at one side port of the single-channel insertion tube 4, the second metal sleeve 7 is fixed at the other side port of the single-channel insertion tube 4, the first metal thin tube 5 sequentially penetrates through the first metal sleeve 3, the single-channel insertion tube 4 and the second metal sleeve 7, meanwhile, part of the tube wall of the first metal thin tube 5 is welded on the tube wall of the first metal sleeve 3, part of the tube wall of the first metal thin tube 5 is welded on the tube wall of the Shan Qiang insertion tube 4, part of the tube wall of the first metal thin tube is welded on the tube wall of the second metal sleeve 7, the second metal thin tube 6 is arranged at the position of one hundred eighty degrees of the first metal thin tube 5, the second metal thin tube sequentially penetrates through the first metal sleeve 3, the single-channel insertion tube 4 and the second metal sleeve 7, the part of the second metal thin tube 6 sequentially penetrates through the first metal tube wall 3, the part of the first metal thin tube wall 3 and the second metal thin tube 7, the part of the second metal thin tube wall of the second thin tube 6 penetrates through the control end 35 and penetrates through the second metal thin tube wall 3 and is welded on the control end 35, and the other end of the handle 5 is connected with the control end of the second thin tube 5, and the handle is welded on the control end is connected with the control end of the second thin tube 2.

Because the traction wire limiting structure uses a spring sleeve, the traction wire penetrates into the spring sleeve, the inner diameter of the spring sleeve is utilized to limit, two ends of the spring sleeve are respectively fixed on a front end snake bone and a handle, but the fixation of the spring sleeve is usually in a glue bonding mode, glue is easy to enter the spring sleeve, the traction wire and the spring sleeve are bonded together, so that the traction wire cannot move, the production cost is wasted, the two independent metal thin tubes are adopted for limiting, the special size is selected to be 0.5mm in the outer diameter of the metal thin tube, the inner diameter of the metal thin tube is 0.3mm, the inner wall and the outer wall of the metal thin tube are very smooth, the metal thin tube has good bending performance, the traction wire penetrates into the metal thin tube to the front end at first, then the metal thin tube penetrating into the traction wire is filled into a single-cavity-way insertion tube 4, the metal thin tube with smooth inner wall can penetrate into the traction wire more easily, and the metal thin tube is also filled into the single-cavity-way insertion tube 4 more easily, and meanwhile, the integrity of the metal thin tube wall can be isolated from other structures, and the metal thin tube can not enter into the metal thin tube when the metal tube is fixed, so that the metal thin tube can not affect the movement.

Example 2

The embodiment proposes a specific implementation mode of an endoscope traction wire limiting structure on the basis of the embodiment 1.

Referring to fig. 2-3, a metal sleeve of an endoscope traction wire limiting structure is a cylindrical sleeve, a plurality of notches are symmetrically formed in the wall of the metal sleeve, the metal tubules are all fixed at the notches of the metal sleeve, one end of the metal sleeve, which is not provided with the notches, is connected with a port of a single-cavity insertion tube 4, wherein 4 notches are formed in the wall of 1 metal sleeve, the peripheral edges of the 4 notches are arranged at equal intervals and are mutually perpendicular to connecting lines of the 2 notches, the 4 notches are all fixed with the metal tubules, the 4 metal tubules are oppositely arranged, and 1 traction wire is penetrated in each metal tubule.

The control end in embodiment 1 includes a bending portion 8 and a tip 9, wherein the bending portion 8 is a snake bone, the 4 traction wires penetrate through the 4 metal tubules and then are connected with the snake bone, and the snake bone is fixedly connected with the tip 9.

Preferably, the ports at two ends of the Shan Qiang inserting tube 4 are flared, so that the connecting pieces are convenient to assemble, 2 metal sleeves are sleeved at the flared positions at two ends of the single-cavity inserting tube 4 respectively.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an endoscope traction wire limit structure, its characterized in that includes single-chamber way insertion tube, traction wire, metal sleeve pipe, metal tubule and control end, metal sleeve pipe has 2, and 2 metal sleeve pipes are fixed in the port department at single-chamber way insertion tube both ends respectively, metal tubule is fixed in on the pipe wall of 2 metal sleeve pipes and the pipe wall of single-chamber way insertion tube, traction wire one end connection handle, the traction wire other end passes the metal tubule and is connected with the control end.

2. The endoscope traction wire limiting structure according to claim 1, wherein 2 metal tubules are fixed in the Shan Qiang insertion tube, the 2 metal tubules are arranged oppositely, and 1 traction wire penetrates through each metal tubule.

3. The spacing structure of an endoscope pulling wire according to claim 1, wherein the control end comprises a bending portion and a tip, the pulling wire is connected to the bending portion after passing through the metal tubule, and the bending portion is fixedly connected to the tip.

4. The endoscope traction wire limiting structure according to claim 1, wherein the metal sleeve is a cylindrical sleeve, a plurality of notches are symmetrically formed in the wall of the metal sleeve, the metal tubules are fixed at the notches of the metal sleeve, and one end of the metal sleeve, which is not provided with the notches, is connected with a port of the single-cavity insertion tube.

5. The spacing structure of an endoscope pulling wire according to claim 4, wherein the ports at both ends of the Shan Qiang insertion tube are flared, and the 2 metal sleeves are respectively sleeved at the flares at both ends of the single-lumen insertion tube.

6. The endoscope traction wire limiting structure according to claim 4, wherein 4 notches are formed in the wall of the 1 metal sleeve, the peripheral edges of the 4 notches are arranged at equal intervals and are perpendicular to connecting lines of the 2 opposite notches, and the 4 notches are all fixedly provided with metal tubules.

7. The spacing structure of an endoscope pulling wire according to claim 4, wherein the length of the metal tubule is longer than the length of a single lumen insertion tube with two ends connected to the metal cannula.

8. The spacing structure of an endoscope pulling wire according to claim 1, wherein the outer diameter of the metal tubule is 0.5mm, the inner diameter of the metal tubule is 0.3mm, and the inner wall of the metal tubule is a smooth inner wall.