Endoscope head connecting structure

Abstract

The utility model relates to the technical field of medical instruments, in particular to an endoscope head connecting structure which comprises a head end seat, a channel embedding pipe and a connecting pipe, an instrument channel, an objective lens channel and a lighting channel are respectively arranged on the head end seat, and the channel embedding pipe sequentially comprises an inner wall layer, a middle wall layer and an outer wall layer from inside to outside. The connecting pipe comprises a first pipe body and a second pipe body. The defects in the prior art are overcome, under the matching action of the first arc-shaped plate and the like, the embedded channel pipe and the second pipe body are spliced, then the first arc-shaped plate and the second arc-shaped plate are placed on the embedded channel pipe and the second pipe body, at the moment, the corresponding mounting columns are inserted into the corresponding mounting holes, and then the embedded channel pipe and the second pipe body are spliced. And therefore, the two nuts can be rotated to mount and fix the mounting column, further, the embedded pipe and the second pipe body can be mounted and fixed, mounting and later dismounting and replacement of the embedded pipe are facilitated, simplicity and convenience are achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an endoscope head connection structure. Background Art

[0002] An electronic endoscope is a medical device that can enter the human body through natural or invasive cavities to perform diagnostic testing and treatment. The end of the endoscope head is provided with structures such as an instrument channel, an objective channel, and an illumination channel. The instrument channel is connected to the channel tube to form a working channel for surgical instruments (including grasping forceps, biopsy forceps, scissors, etc.). The larger the inner diameter of the working channel, the stronger the surgical instrument's ability to pass through, and the more types of compatible instruments.

[0003] After searching, the Chinese patent application publication number CN217938170 discloses a connection structure for the head end of an endoscope, including a head end seat, an embedded channel tube and a connecting tube; the head end seat is provided with an instrument channel, an objective lens channel and an illumination channel; the embedded channel tube includes an inner wall layer, a middle wall layer and an outer wall layer from the inside to the outside.

[0004] A connection structure for the head end of an endoscope in the above-mentioned patent has the following disadvantages: although the device can reduce the overall outer diameter of the endoscope, making it easier for doctors to operate and more comfortable for patients, the second tube body and the embedded channel tube on the device are often connected and fixed by bonding or welding, so that the embedded channel tube and the connecting tube need to be disassembled, replaced or maintained after long-term use, and they cannot be quickly disassembled, replaced or installed, which is troublesome, and the connecting tube on the device cannot be quickly installed and disassembled. Utility Model Content

[0005] The purpose of the utility model is to solve or at least alleviate the problem in the prior art that the embedded channel pipe and the connecting pipe need to be disassembled, replaced or maintained after long-term use, and thus cannot be quickly disassembled, replaced or installed, which is troublesome, and the connecting pipe on the device cannot be quickly installed and disassembled.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an endoscope head connection structure, comprising a head end seat, an embedded channel tube and a connecting tube, the head end seat is respectively provided with an instrument channel, an objective lens channel and an illumination channel, the embedded channel tube comprises an inner wall layer, a middle wall layer and an outer wall layer from the inside to the outside; the connecting tube comprises a first tube body and a second tube body, the first tube body is connected to the inner side of the instrument channel on the head end seat, the second tube body is connected to the embedded channel tube, the first tube body and the second tube body are threadedly sleeved, and the second tube body and the embedded channel tube are both provided with a mounting mechanism;

[0007] The mounting mechanism includes a first arc-shaped plate and a second arc-shaped plate, and a first mounting ear and a second mounting ear are fixedly mounted on the outer walls of one side of the first arc-shaped plate and the second arc-shaped plate, and a mounting hole is provided on the first mounting ear and the second mounting ear, and a mounting column is slidably installed in the mounting hole, and threads are provided on the outer surfaces of both sides of the mounting column, and nuts are screwed on the two threads.

[0008] By adopting the above technical solution, the embedded channel tube and the second tube body are spliced, and then the first arc plate and the second arc plate are placed on the embedded channel tube and the second tube body. At this time, the corresponding mounting column is inserted into the corresponding mounting hole, so that the two nuts can be rotated to install and fix the mounting column, and then the embedded channel tube and the second tube body can also be installed and fixed, which is convenient for installation and later disassembly and replacement, and improves work efficiency.

[0009] Optionally, the first tube body is larger than the second tube body, and a rubber pad is provided on the inner wall of the second tube body.

[0010] By adopting the above technical solution and arranging the rubber pad, the inner diameters of the first tube body and the second tube body can be made the same.

[0011] Optionally, the first mounting ear and the second mounting ear are of the same size and are arranged in parallel.

[0012] By adopting the above technical solution, the first mounting ear and the second mounting ear are of the same size and are arranged in parallel, thereby facilitating installation and fixing.

[0013] Optionally, the inner diameter of the embedded tube and the second tube body are the same.

[0014] By adopting the above technical solution, the inner diameters of the embedded channel pipe and the second pipe body are set to be the same, thereby facilitating installation and use.

[0015] Optionally, the connecting pipe is a single-layer plastic structure, specifically one of polyvinyl chloride, polyurethane, polyester, polyamide, and polycarbonate.

[0016] By adopting the above technical solution, the connecting pipe is set to a single-layer plastic structure, thereby facilitating installation.

[0017] Optionally, one end of the first tube is fixed to the instrument channel by bonding.

[0018] By adopting the above technical solution, one end of the first tube body is fixed to the instrument channel by bonding, so that installation and fixation can be performed.

[0019] Optionally, the second tube body and the embedded channel tube are fixedly installed through the first arc plate and the second arc plate, positioning holes are opened at both ends of the embedded channel tube, positioning columns are slidably installed in the two positioning holes, and the two positioning columns are fixedly connected to the first arc plate and the second arc plate respectively.

[0020] By adopting the above technical solution, positioning holes and positioning columns are provided to assist in installation and positioning.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] (1) The utility model adopts the cooperation of the first arc plate and the like, by splicing the embedded channel tube and the second tube body, and then placing the first arc plate and the second arc plate on the embedded channel tube and the second tube body, and then inserting the corresponding mounting column into the corresponding mounting hole, so that the two nuts can be rotated to install and fix the mounting column, and then the embedded channel tube and the second tube body can also be installed and fixed, which is convenient for installation and later disassembly and replacement, and improves work efficiency.

[0023] (2) The present invention uses positioning holes and the like to thread the first tube body and the second tube body together, thereby facilitating installation, disassembly and replacement. Positioning holes and positioning columns are provided to facilitate positioning, fixing and installation of the first arc-shaped plate and the second arc-shaped plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the first arc-shaped plate structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the installation column structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the positioning hole structure of the utility model.

[0028] In the figure: 1, head end seat; 2, embedded channel tube; 3, instrument channel; 4, objective lens channel; 5, lighting channel; 6, first tube body; 7, second tube body; 8, first arc plate; 9, second arc plate; 10, first mounting ear; 11, second mounting ear; 12, mounting hole; 13, mounting column; 14, thread; 15, nut; 16, positioning hole; 17, positioning column; 18, connecting tube. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-4 , an endoscope head connection structure, including a head end seat 1, an embedded channel tube 2 and a connecting tube 18. The connecting tube 18 can be used to assist installation. The head end seat 1 is respectively provided with an instrument channel 3, an objective lens channel 4 and an illumination channel 5. The embedded channel tube 2 includes an inner wall layer, a middle wall layer and an outer wall layer from the inside to the outside; the connecting tube 18 includes a first tube body 6 and a second tube body 7. The first tube body 6 is connected to the inner side of the instrument channel 3 on the head end seat 1, and the second tube body 7 is connected to the embedded channel tube 2. The first tube body 6 and the second tube body 7 are threadedly sleeved. By setting the first tube body 6 and the second tube body 7 as threadedly sleeved, it is convenient to install and adjust the length. The second tube body 7 and the embedded channel tube 2 are both provided with installation mechanisms; the installation mechanism can be used to assist installation.

[0031] Among them, the mounting mechanism includes a first arc-shaped plate 8 and a second arc-shaped plate 9, and the outer walls of one side of the first arc-shaped plate 8 and the second arc-shaped plate 9 are fixedly installed with a first mounting ear 10 and a second mounting ear 11. By setting the first mounting ear 10 and the second mounting ear 11, it can play a role in auxiliary installation. The first mounting ear 10 and the second mounting ear 11 are both provided with mounting holes 12, and mounting columns 13 are slidably installed in the mounting holes 12. The outer surfaces of both sides of the mounting columns 13 are provided with threads 14, and nuts 15 are screwed on the two threads 14.

[0032] When in use, the embedded channel tube 2 and the second tube body 7 are spliced, and then the first arc plate 8 and the second arc plate 9 are placed on the embedded channel tube 2 and the second tube body 7. At this time, the corresponding mounting column 13 is inserted into the corresponding mounting hole 12, so that the two nuts 15 can be rotated to install and fix the mounting column 13, and then the embedded channel tube 2 and the second tube body 7 can also be installed and fixed, which is convenient for installation and later disassembly and replacement, simple and convenient, and improves work efficiency.

[0033] For details, please refer to Figure 1 The first tube body 6 is larger than the second tube body 7, and a rubber pad is provided on the inner wall of the second tube body 7. The rubber pad is provided so that the inner diameters of the first tube body 6 and the second tube body 7 can be the same.

[0034] For details, please refer to Figure 1-3The first mounting ear 10 and the second mounting ear 11 are of the same size and are arranged in parallel. The first mounting ear 10 and the second mounting ear 11 are of the same size and are arranged in parallel, so that installation and fixing are facilitated.

[0035] For details, please refer to Figure 2 The inner diameters of the embedded channel tube 2 and the second tube body 7 are the same. By setting the inner diameters of the embedded channel tube 2 and the second tube body 7 to be the same, it is convenient to install and use.

[0036] For details, please refer to Figure 1-2 The connecting pipe 18 is a single-layer plastic structure, specifically one of polyvinyl chloride, polyurethane, polyester, polyamide, and polycarbonate. By setting the connecting pipe 18 to be a single-layer plastic structure, it is easy to install.

[0037] For details, please refer to Figure 1-2 One end of the first tube body 6 is fixed to the instrument channel 3 by bonding. By setting one end of the first tube body 6 to be fixed to the instrument channel 3 by bonding, installation and fixation can be performed.

[0038] For details, please refer to Figure 3-4 The second tube body 7 and the embedded channel tube 2 are fixedly installed through the first arc plate 8 and the second arc plate 9. Positioning holes 16 are provided at both ends of the embedded channel tube 2. Positioning posts 17 are slidably installed in the two positioning holes 16. The two positioning posts 17 are respectively fixedly connected to the first arc plate 8 and the second arc plate 9. The positioning holes 16 and the positioning posts 17 can play a role in assisting installation and positioning.

[0039] Working principle: When in use, firstly, the second tube body 7 is sleeved on the first tube body 6, and then the first tube body 6 is fixedly connected to the instrument channel 3. At this time, the embedded channel tube 2 and the second tube body 7 can be spliced, and then the first arc plate 8 and the second arc plate 9 are placed on the embedded channel tube 2 and the second tube body 7. At this time, the corresponding mounting column 13 is inserted into the corresponding mounting hole 12, so that the two nuts 15 can be rotated and the mounting column 13 can be installed and fixed, and then the embedded channel tube 2 and the second tube body 7 can also be installed and fixed, which is convenient for installation and later disassembly and replacement, simple and convenient, and improves work efficiency.

[0040] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An endoscope head connection structure, comprising a head end seat (1), an embedded channel tube (2) and a connecting tube (18), characterized in that: The head end seat (1) is respectively provided with an instrument channel (3), an objective lens channel (4) and an illumination channel (5); the embedded channel tube (2) comprises an inner wall layer, a middle wall layer and an outer wall layer from the inside to the outside; the connecting tube (18) comprises a first tube body (6) and a second tube body (7); the first tube body (6) is connected to the inner side of the instrument channel (3) on the head end seat (1); the second tube body (7) is connected to the embedded channel tube (2); the first tube body (6) and the second tube body (7) are threadedly sleeved; the second tube body (7) and the embedded channel tube (2) are both provided with mounting mechanisms; The mounting mechanism comprises a first arc-shaped plate (8) and a second arc-shaped plate (9); a first mounting ear (10) and a second mounting ear (11) are fixedly mounted on one side outer wall of the first arc-shaped plate (8) and the second arc-shaped plate (9); a mounting hole (12) is provided on the first mounting ear (10) and the second mounting ear (11); a mounting column (13) is slidably mounted in the mounting hole (12); threads (14) are provided on the outer surfaces of both sides of the mounting column (13); nuts (15) are screwed on the two threads (14).

2. The endoscope head connection structure according to claim 1, characterized in that: The first tube body (6) is larger than the second tube body (7), and a rubber pad is provided on the inner wall of the second tube body (7).

3. The endoscope head connection structure according to claim 1, characterized in that: The first mounting ear (10) and the second mounting ear (11) are of the same size and are arranged in parallel.

4. The endoscope head connection structure according to claim 2, characterized in that: The inner diameters of the embedded channel tube (2) and the second tube body (7) are the same.

5. The endoscope head connection structure according to claim 4, characterized in that: The connecting pipe (18) is a single-layer plastic structure, specifically one of polyvinyl chloride, polyurethane, polyester, polyamide, and polycarbonate.

6. The endoscope head connection structure according to claim 5, characterized in that: One end of the first tube (6) is fixed to the instrument channel (3) by bonding.

7. The endoscope head connection structure according to claim 2, characterized in that: The second tube body (7) and the embedded channel tube (2) are fixedly installed through a first arc-shaped plate (8) and a second arc-shaped plate (9); positioning holes (16) are provided at both ends of the embedded channel tube (2); positioning columns (17) are slidably installed in the two positioning holes (16); and the two positioning columns (17) are fixedly connected to the first arc-shaped plate (8) and the second arc-shaped plate (9), respectively.

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