Endoscope airtightness detection clamp and detection system
By designing the endoscopic airtightness detection fixture and detection system, using the detection chamber and the air source system to detect the airtightness in the chamber, the problems of bulky and high maintenance costs of automated detection equipment in the prior art are solved, and high efficiency is achieved , convenient airtightness detection.
Patent Information
- Application Number
- CN202421045068.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-14
AI Technical Summary
Existing automated detection equipment is bulky, has a low scope of application and is relatively expensive to effectively detect the airtightness of the endoscope.
A clamp and detection system for endoscopic airtightness detection are designed. The clamp includes a detection chamber and an air source system. By controlling the airtightness in the air pressure detection chamber, the clamp has a simple structure and low cost, which is suitable for different occasions. The airtightness of each pipe section of the insertion part can be gradually detected.
It realizes the convenience and wide applicability of the fixture structure, improves the efficiency of airtightness detection, can accurately detect parts of airtightness problems, and reduces the detection cost.
Smart Images
Figure CN222188723U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of endoscope detection, and in particular relates to a clamp for endoscope air tightness detection and a detection system. Background Art
[0002] As a medical diagnostic device, an endoscope can enter the body and take images of lesions through a camera packaged at the far end, providing doctors with sufficient diagnostic information to treat diseases. Endoscopes are usually equipped with one or more working channels, such as water inlet and outlet channels, instrument channels, etc. Since these pipes involve performance requirements for water inlet and outlet, there is a risk of cross infection, so the air tightness of endoscope products needs to be tested.
[0003] In the prior art, automated testing equipment is usually used to test the air tightness of an endoscope. However, the automated testing equipment is bulky, has a limited scope of application, and has a high maintenance cost. Utility Model Content
[0004] The purpose of this application is to provide a clamp and a detection system for endoscope air tightness detection to solve the above-mentioned technical problems existing in the prior art.
[0005] This application is implemented as follows:
[0006] In the first aspect, the present application provides a clamp for detecting air tightness of an endoscope, the clamp comprising a clamp body, a detection cavity being arranged inside the clamp body, the detection cavity being configured to allow an active bending section of an insertion portion of the endoscope to extend therein, the detection cavity having a first opening and a second opening, the first opening being used to connect to an air source, and the second opening being used to allow the insertion portion of the endoscope to extend into the detection cavity.
[0007] In a second aspect, the present application provides an endoscope air tightness detection system, comprising the clamp provided in the first aspect of the present application, and also comprising an air source, an air source pipeline, a first control valve, a first air pressure detection device and a second air pressure detection device, wherein: the air source pipeline is connected between the air source and the clamp, and is used to supply gas to the detection cavity in the clamp; the first control valve is arranged on the air source pipeline, and is used to control the on-off of the air source pipeline; the first air pressure detection device is connected between the air source and the first control valve, and the second air pressure detection device is arranged in parallel with the clamp, and is used to detect the air pressure in the clamp.
[0008] The technical solution provided by this application can achieve the following beneficial effects:
[0009] In the present application, a detection cavity is provided in the clamp, and a first opening of the detection cavity is provided to be connected to an air source, and a second opening is provided for the insertion part of the endoscope to extend into the detection cavity, so that when the insertion part is extended into the detection cavity, a sealed environment can be formed inside the detection cavity, thereby detecting the air tightness of the insertion part; the clamp has a simple structure, low cost, and a wide range of applicability, and can be used in different occasions; the detection cavity can accommodate the active bending section of the insertion part, and by controlling the length of the active bending section of the insertion part in the detection cavity, the air tightness of different parts of the active bending section of the insertion part can be detected, thereby improving the convenience of air tightness detection; at the same time, by gradually increasing the length of the insertion part inserted into the detection cavity, the air tightness of each pipe section of the insertion part can be gradually detected, and the pipe sections with air tightness problems can be found out. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0011] Figure 1 is a schematic diagram of the cooperation between the clamp and the endoscope provided in some embodiments of the present application;
[0012] Figure 2 is a schematic diagram of the overall structure of a clamp provided in some embodiments of the present application;
[0013] Figure 3 is a schematic diagram of the disassembly of a clamp provided in some embodiments of the present application;
[0014] Figure 4 is a cross-sectional view of a clamp provided in some embodiments of the present application;
[0015] Figure 5 is a schematic structural diagram of a clamp body provided in some embodiments of the present application;
[0016] Figure 6 It is a schematic diagram of a detection system provided in some embodiments of the present application.
[0017] In the figure: 100-clamp, 110-clamp body, 111-detection cavity, 112-first opening, 113-second opening, 114-installation groove, 120-scale mark, 130-sealing ring, 140-end cover, 150-gas source connector, 200-gas source, 300-gas source pipeline, 400-pressure relief branch, 500-throttle valve, 600-pressure reducing valve, 710-first control valve, 720-second control valve, 730-third control valve, 810-first air pressure detection device, 820-second air pressure detection device, 900-endoscope, 910-insertion part. DETAILED DESCRIPTION
[0018] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.
[0019] It should be noted that, in each embodiment of the present application, "proximal end" and "distal end" refer to the position of the endoscope and its accessories relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".
[0020] The embodiment of the present application provides a clamp for air tightness detection of an endoscope, the clamp 100 includes a clamp body 110, and a detection cavity 111 is arranged inside the clamp body 110, and the detection cavity 111 is used to accommodate the part of the endoscope 900 that needs to be air tightness detected, that is, the detection cavity 111 is used to accommodate the insertion part 910 of the endoscope 900, and to detect the air tightness of the insertion part 910. In the embodiment of the present application, the detection cavity 111 is configured to allow the active bending section of the insertion part 910 to be inserted, that is, the detection cavity 111 has a minimum length requirement, the detection cavity 111 at least needs to accommodate the active bending section, and the detection cavity 111 cannot be too short. In the case where the detection cavity 111 has a certain length, the insertion part 910 can be inserted into the detection cavity 111 at different length positions according to the actual detection requirements, so that the air tightness of different parts of the insertion part 910 can be detected.
[0021] The detection cavity 111 has a first opening 112 and a second opening 113. The first opening 112 is connected to the gas source 200, and the gas source 200 is used to supply gas to the inside of the detection cavity 111 to provide a detection environment for the detection of the air tightness of the insertion part 910. The second opening 113 serves as the detection opening of the detection cavity 111, and is used for the insertion part 910 of the endoscope 900 to extend into the detection cavity 111. In a specific implementation, the distal end of the insertion part 910 extends into the detection cavity 111 through the second opening 113.
[0022] When the insertion portion 910 of the endoscope 900 extends into the detection cavity 111, the first opening 112 of the detection cavity 111 is connected to the gas source 200, and the second opening 113 has the insertion portion 910 of the endoscope 900. The insertion portion 910 can block the second opening 113, so that a sealed environment can be formed inside the detection cavity 111, so as to detect the airtightness of the insertion portion 910. The fixture 100 structure provided in the embodiment of the present application can be applied to the sealing detection of endoscopes 900 products of different models, has a wide trial range, can be applied to different occasions, is convenient to try, has a high degree of feasibility, and is not costly.
[0023] During the process of testing the air tightness of the insertion part 910, the air tightness of the connection parts of the tube segments such as the front end head, the active bending section, and the passive bending section of the insertion part 910 is mainly considered. The connection parts of two adjacent tube segments are more likely to have air tightness problems than the tube segment body. Therefore, in the embodiment of the present application, there are requirements for the length of the detection cavity 111. The tube segments of the insertion part 910 and the connection parts of each tube segment can be tested in turn, which is beneficial to improve the detection efficiency and avoid the situation where the clamp 100 is replaced again to test the air tightness of the insertion part 910 due to insufficient length of the detection cavity 111. In some preferred embodiments, the detection cavity 111 can accommodate the insertion part 910 of the endoscope 900, and the length of the detection cavity 111 is set to be long enough. Refer to Figure 1 As shown, the overall air tightness of the insertion portion 910 can be tested using only one clamp 100 .
[0024] In the specific operation, firstly, the front end of the insertion part 910 at the far end is inserted into the detection cavity 111 to perform an airtightness test. What is actually tested is the airtightness of the pipe section of the insertion part 910 that is not inserted into the detection cavity 111 and the handle of the endoscope 900. If the airtightness is detected to be unqualified, it is necessary to increase the length of the insertion part 910 inserted into the detection cavity 111 and perform an airtightness test again until the airtightness test is qualified. Then, the position of the pipe section with airtightness problem can be known. The pipe section with airtightness problem is the pipe section that newly enters the detection cavity 111 during this test. After obtaining the position of the problematic pipe section, the problematic pipe section can also be gradually tested for airtightness, and the length of the pipe section inserted into the detection cavity 111 can be gradually increased, so as to find out the exact position of the part with airtightness problem.
[0025] For different models of endoscopes 900, the length of the insertion part 910 is not necessarily the same. During the airtightness detection process, the detection cavity 111 is preferably able to accommodate the insertion part 910, so as to improve the airtightness detection efficiency. The length of the detection cavity 111 should not be too long to avoid occupying too much space, and the length of the detection cavity 111 can be determined according to the model of the endoscope 900 to be detected.
[0026] In some preferred embodiments of the present application, the circumferential tube wall of the clamp body 110 is a tubular structure made of a transparent material. The circumferential tube wall of the clamp body 110 is transparent, which can facilitate the operator to observe the situation in the detection cavity 111. In the process of inserting the insertion part 910 into the detection cavity 111, the insertion part 910 can be observed through the transparent tube wall, which is convenient for controlling the insertion direction of the insertion part 910, avoiding the deviation of the insertion direction of the insertion part 910, causing the insertion part 910 to touch the inner wall of the detection cavity 111, causing the insertion part 910 to be damaged. At the same time, the depth of the insertion part 910 extending into the detection cavity 111 can also be observed to avoid the insertion part 910 being inserted too deep and causing the insertion part 910 to be damaged. In addition, the state of the insertion part 910 can also be observed during the detection process to clarify the detection situation. Exemplarily, the clamp body 110 can be made of acrylic material.
[0027] Further preferably, the wall of the fixture body 110 is provided with a plurality of scale marks 120, and the plurality of scale marks 120 are arranged along the depth direction of the detection cavity 111, referring to Figure 2 As shown. Different scale marks 120 refer to different depths of the detection cavity 111. The scale marks 120 mark the depth of the detection cavity 111. In the process of inserting the insertion part 910 into the detection cavity 111, the length of the insertion part 910 extending into the detection cavity 111 can be determined by the scale marks 120. The size of the endoscope 900 is known. The operator can confirm the size of each pipe section of the insertion part 910 through the nameplate and instructions of the endoscope 900, such as the size of the front end assembly, the size of the active bending section, and the size of the passive bending section. By obtaining the scale mark 120 corresponding to the insertion part 910, it is convenient for the operator to clearly understand the type of pipe section of the insertion part 910 extending into the detection cavity 111, thereby assisting the operator to adjust the length of the insertion part 910 in the detection cavity 111, so as to clearly distinguish the pipe section of the insertion part 910 that needs to be extended into the detection cavity 111 and the pipe section that does not need to be extended into the detection cavity 111, thereby improving the accuracy of the airtightness test result of the insertion part 910.
[0028] The scale mark 120 can be set on the inner surface of the clamp body 110, or on the outer surface of the clamp body 110. The specific setting position of the scale mark 120 is not specifically limited in the present application. In some preferred embodiments, the scale mark 120 includes scale numbers and scale lines, and the scale lines can improve the accuracy of the reading. The scale mark 120 can be a mark engraved on the surface of the clamp body 110, or it can be a scale structure formed by integral injection molding with the clamp body 110.
[0029] During the air tightness test of the insertion part 910, it is necessary to adjust the positions of the insertion part 910 and the clamp body 110, and extend the insertion part 910 to different depths in the detection cavity 111 to perform air tightness tests on different parts of the insertion part 910. In some embodiments of the present application, a gripping portion may be provided on the outer peripheral wall of the clamp body 110, and the gripping portion is used for holding by a human hand. The operator can increase the contact area between the human hand and the clamp body 110 by holding the gripping portion, thereby improving the gripping stability of the clamp body 110 and making it easier for the operator to control the position of the clamp body 110.
[0030] In some specific embodiments, the gripping portion may be a groove structure provided on the outer peripheral wall of the clamp body 110. The outer peripheral wall of the clamp body 110 is provided with a groove, which is adapted to the shape of a human hand and is more conducive to human hand gripping. The gripping portion may also be a protrusion structure provided on the outer peripheral wall of the clamp body 110. The outer peripheral wall of the clamp body 110 is provided with a protrusion, which is adapted to the shape of a human hand and is more conducive to human hand gripping.
[0031] In order to improve the operator's control effect on the clamp body 110, the gripping portion is arranged near the second opening 113. The second opening 113 is used for the insertion portion 910 to extend therein, and the portion of the clamp body 110 near the second opening 113 is more susceptible to the influence of the insertion portion 910 and changes in position. The gripping portion is close to the second opening 113, which is more conducive to controlling the position of the second opening 113 to maintain stability, facilitates the insertion portion 910 to extend into the detection cavity 111, provides a stable insertion channel for the insertion portion 910, and avoids the tube wall of the second opening 113 and the insertion portion 910 from touching or pressing each other, which may cause damage to the structure of the insertion portion 910.
[0032] The embodiments provided in this application have no specific requirements on the shapes of the detection cavity 111 and the fixture body 110, and the detection cavity 111 and the fixture body 110 can be in various shapes. In some preferred embodiments, the second opening 113 can be coaxially arranged with the detection cavity 111, and the second opening 113 and the first opening 112 are respectively located at both ends of the axis of the detection cavity 111, so that when the insertion part 910 is inserted into the detection cavity 111, the insertion part 910 is located at the center of the detection cavity 111, and the gas conditions around the insertion part 910 are the same, so as to avoid affecting the accuracy of the air tightness test result due to different gas amounts.
[0033] In some embodiments of the present application, the fixture body 110 is further provided with a mounting groove 114, the mounting groove 114 and the second opening 113 are located at the same position of the fixture body 110, and the mounting groove 114 is also sleeved outside the second opening 113 and communicated with the second opening 113, Figure 5The mounting groove 114 is provided with a sealing ring 130, and the axial length of the sealing ring 130 is greater than the depth of the mounting groove 114. The clamp body 110 is also detachably connected with an end cover 140, and the end cover 140 covers the notch of the mounting groove 114 to press the sealing ring 130 between the mounting groove 114 and the end cover 140. Figure 3 and Figure 4 As shown. The end cover 140 is provided with an opening for the insertion part 910 to pass through, and the opening is connected with the annular cavity of the sealing ring 130 and the second opening 113, and together form a channel for the insertion part 910 to pass through. The sealing ring 130 seals the gap between the second opening 113 and the insertion part 910, so that the detection cavity 111 can form a closed space. Since the axial length of the sealing ring 130 is relatively long, after the sealing ring 130 is pressed between the end cover 140 and the mounting groove 114, the sealing ring 130 is compressed. The compressed sealing ring 130 will squeeze its own annular cavity and press against the outer wall of the insertion part 910 inserted into the annular cavity, thereby improving the sealing effect in the detection cavity 111.
[0034] In some preferred embodiments, the depth of the mounting groove 114 is greater than or equal to 10 mm. In the insertion portion 910, the connection portion between the front end shell and the active bending section, the connection portion between the active bending section and the passive bending section, and the connection portion between two adjacent snake bones in the active bending section are all relatively fragile. If the sealing ring 130 is short, the sealing ring 130 will press against these portions, which will cause the insertion portion 910 to be subjected to concentrated force, and the structure of the insertion portion 910 will be damaged or deformed. The depth of the mounting groove 114 is the length of the compressed sealing ring 130. The depth of the mounting groove 114 is greater than or equal to 10 mm, which increases the contact area between the sealing ring 130 and the insertion portion 910, reduces the force per unit area of the insertion portion 910, and thus maintains the structural integrity of the insertion portion 910.
[0035] Some embodiments of the present application also provide an endoscope 900 air tightness detection system, including the clamp 100 provided in any of the above embodiments, and also including a gas source 200, a gas source pipeline 300, a first control valve 710, a first air pressure detection device 810 and a second air pressure detection device 820, wherein: the gas source pipeline 300 is connected between the gas source 200 and the clamp 100, and is used to supply gas to the detection cavity 111 in the clamp 100; the first control valve 710 is arranged on the gas source pipeline 300, and is used to control the on and off of the gas source pipeline 300; the first air pressure detection device 810 is connected between the gas source 200 and the first control valve 710, and the second air pressure detection device 820 is arranged in parallel with the clamp 100, and is used to detect the air pressure in the clamp 100.
[0036] The gas source pipeline 300 is connected to the first opening 112 of the fixture 100. For example, a gas source connector 150 is provided between the gas source pipeline 300 and the first opening 112. Figure 3 As shown, it is convenient to install the clamp 100 on the gas source pipeline 300 or remove the clamp 100 from the gas source pipeline 300.
[0037] During the detection process, the insertion part 910 is installed in the detection cavity 111, the detection cavity 111 is sealed, and then the gas source 200 is opened, and the first control valve 710 is opened to allow the gas source 200 to pass into the detection cavity 111 of the fixture 100, and then the first control valve 710 and the gas source 200 are closed. Within the observation time set by the endoscope 900 product, the leakage value of the second air pressure detection device 820 is compared with the first air pressure detection device 810 to determine whether it is within the allowable range, and the air tightness test result is obtained.
[0038] The detection system also includes a pressure relief branch 400, a second control valve 720 and a third control valve 730. The pressure relief branch 400 is connected between the gas source 200 and the first control valve 710. The second control valve 720 is arranged on the pressure relief branch 400 to control the on-off of the pressure relief branch 400. The third control valve 730 is arranged on the gas source pipeline 300 and is located between the gas source 200 and the pressure relief branch 400. Figure 6 shown.
[0039] During the air tightness test of the endoscope 900, the second control valve 720 is in a closed state to prevent the air source 200 in the air source pipeline 300 from changing and affecting the result of the air tightness test. After obtaining the air tightness test result, the third control valve 730 is closed, the first control valve 710 is opened, and then the second control valve 720 is opened to release the pressure of the air source pipeline 300 and the pressure relief branch 400 after the third control valve 730. After the pressure relief is completed, the product can be removed.
[0040] A throttle valve 500 and a pressure reducing valve 600 may be arranged in sequence between the gas source 200 and the third control valve 730. The pressure reducing valve 600 may adjust the pressure in the gas source pipeline 300 to meet the pressure value required by the product being tested.
[0041] The endoscope 900 applicable to the clamp 100 and the detection system provided in the present application may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiment of the present application does not impose any specific restrictions on the type of the endoscope 900.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A clamp for testing air tightness of an endoscope, characterized in that: The clamp (100) includes a clamp body (110), wherein a detection cavity (111) is arranged inside the clamp body (110), and the detection cavity (111) is configured to allow an active bending section of an insertion portion (910) of an endoscope (900) to extend therein, and the detection cavity (111) has a first opening (112) and a second opening (113), wherein the first opening (112) is used to connect to a gas source (200), and the second opening (113) is used to allow the insertion portion (910) of the endoscope (900) to extend into the detection cavity (111).
2. The clamp for air tightness detection of an endoscope according to claim 1, characterized in that: The circumferential tube wall of the clamp body (110) is a tubular structure made of transparent material.
3. The clamp for air tightness detection of an endoscope according to claim 2, characterized in that: The tube wall of the clamp body (110) is provided with a plurality of scale marks (120), and the plurality of scale marks (120) are arranged along the depth direction of the detection cavity (111).
4. The clamp for air tightness detection of an endoscope according to claim 1, characterized in that: The outer peripheral wall of the clamp body (110) is provided with a gripping portion, and the gripping portion is used for being gripped by a human hand.
5. The clamp for air tightness detection of an endoscope according to claim 4, characterized in that: The gripping portion is disposed close to the second opening (113); And / or, the holding portion is a groove structure or a protrusion structure arranged on the outer peripheral wall of the clamp body (110).
6. The clamp for air tightness detection of an endoscope according to claim 1, characterized in that: The second opening (113) is coaxially arranged with the detection cavity (111), and the second opening (113) and the first opening (112) are respectively located at two ends of an axis of the detection cavity (111).
7. The clamp for air tightness detection of an endoscope according to claim 1, characterized in that: The clamp body (110) is further provided with a mounting groove (114), wherein the mounting groove (114) is sleeved outside the second opening (113) and communicates with the second opening (113); A sealing ring (130) is installed in the installation groove (114), and the axial length of the sealing ring (130) is greater than the depth of the installation groove (114); The clamp body (110) is detachably connected to an end cover (140), and the end cover (140) covers the notch of the installation groove (114) to press the sealing ring (130) between the installation groove (114) and the end cover (140).
8. The clamp for air tightness detection of an endoscope according to claim 7, characterized in that: The depth of the installation groove (114) is greater than or equal to 10 mm.
9. An endoscope air tightness detection system, characterized in that: The clamp (100) comprises the clamp (100) according to any one of claims 1 to 8, and further comprises an air source (200), an air source pipeline (300), a first control valve (710), a first air pressure detection device (810) and a second air pressure detection device (820), wherein: The gas source pipeline (300) is connected between the gas source (200) and the fixture (100) and is used to supply gas to the detection cavity (111) in the fixture (100); The first control valve (710) is arranged on the gas source pipeline (300) and is used to control the on and off of the gas source pipeline (300); the first air pressure detection device (810) is connected between the gas source (200) and the first control valve (710); the second air pressure detection device (820) is arranged in parallel with the clamp (100) and is used to detect the air pressure in the clamp (100).
10. An endoscope air tightness detection system according to claim 9, characterized in that: The detection system further comprises a pressure relief branch (400), a second control valve (720) and a third control valve (730); the pressure relief branch (400) is connected between the gas source (200) and the first control valve (710); the second control valve (720) is arranged on the pressure relief branch (400) and is used to control the on-off of the pressure relief branch (400); the third control valve (730) is arranged on the gas source pipeline (300) and is located between the gas source (200) and the pressure relief branch (400).