Endoscope pipeline locking device

Abstract

The utility model relates to an endoscope pipeline locking device which comprises a connecting base, an endoscope connector and a locking piece, the endoscope connector and the locking piece are arranged on the two sides of the connecting base respectively, the connecting base is provided with a locking channel, and the locking channel comprises a spiral section and a first reducing section; the locking piece comprises an operating part and a clamping part which are arranged on the two sides respectively, the outer side wall of the operating part is provided with threads and is partially inserted into the locking channel to be in threaded connection with the locking channel, and the clamping part is inserted into the locking channel and is provided with a plurality of clamping claws arranged in the circumferential direction of the operating part. The locking piece can move in the direction close to the endoscope connector relative to the connecting base, and the first reducing section extrudes the clamping part so that the clamping part can be collected in the axis direction of the locking piece. According to the endoscope pipeline locking device, the endoscope connector is connected with the endoscope, and the locking piece is matched with the connecting base, so that the pipeline of the auxiliary treatment instrument is clamped, the relative positions of the endoscope and the auxiliary treatment instrument are fixed, and displacement of the auxiliary treatment instrument during working is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an endoscope pipeline locking device. Background Art

[0002] Endoscopes can be used with some auxiliary treatment tools to treat lesions, such as ESD (endoscopic submucosal dissection) surgery with a high-frequency incision knife. During the ESD surgery, as the blade is used for cutting, the blade and its pipeline will move back. The doctor needs to frequently manually adjust the pipeline to ensure the distance of the blade out of the endoscope, which is very inconvenient. Therefore, it is necessary to design a pipeline locking device that can easily fix the pipeline and prevent it from shifting. Utility Model Content

[0003] The utility model aims to provide an endoscope pipeline locking device with simple structure and good locking force.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An endoscope tube locking device, comprising:

[0006] An endoscope connector, used for connecting to an entrance of an endoscope working channel;

[0007] A connecting seat, wherein one side of the connecting seat has a receiving groove, the receiving groove is provided with the endoscope connector, and the other side has a locking channel connected to the interface of the endoscope connector, the locking channel has a spiral section and a first diameter-reducing section, the first diameter-reducing section is located between the spiral section and the endoscope connector and its diameter gradually decreases toward the direction close to the endoscope connector;

[0008] The locking member has an instrument channel that runs through the locking member along its axial direction and through which auxiliary treatment instruments can pass. The locking member includes an operating portion and a clamping portion that are arranged on both sides. The outer wall of the operating portion has a thread. The operating portion is partially inserted into the locking channel and is threadedly connected to the locking channel. The clamping portion has a plurality of clamping claws arranged along the circumference of the operating portion. The inner walls of the plurality of clamping claws constitute part of the instrument channel. The clamping portion is inserted into the locking channel.

[0009] When the locking member or the connecting seat is rotated, the locking member can move relative to the connecting seat toward the direction close to the endoscope joint, and the first diameter-reducing section squeezes the clamping portion so that the clamping portion converges toward the axial direction of the locking member.

[0010] Preferably, the inner side wall of the clamping portion has a plurality of protrusions extending toward the axial direction of the locking member. The design of the protrusions increases the clamping friction force, further ensuring that the pipeline does not shift during the operation.

[0011] Preferably, the clamping portion has a straight section and a second diameter-reducing section, the straight section is connected to the operating portion, the outer diameter of the second diameter-reducing section gradually decreases toward the direction close to the endoscope joint, and the reduction amplitude is less than or equal to the reduction amplitude of the first diameter-reducing section, and the minimum outer diameter of the second diameter-reducing section is greater than the minimum diameter of the first diameter-reducing section. The design of the second diameter-reducing section facilitates the clamping portion to enter the locking channel on the one hand, and facilitates its cooperation and clamping with the first diameter-reducing section on the other hand.

[0012] Preferably, the end of the endoscope connector close to the locking channel has a third diameter reducing section connected to the interface, and the diameter of the third diameter reducing section gradually increases toward the locking channel. The design of the third diameter reducing section facilitates the instrument to pass through the endoscope pipeline locking device and enter the endoscope.

[0013] Preferably, the inner diameter of the accommodating groove gradually expands in a direction away from the locking channel, and the minimum inner diameter of the accommodating groove is smaller than the outer diameter of the endoscope connector, and the maximum inner diameter is larger than the outer diameter of the endoscope connector. The design of the inner diameter of the accommodating groove can, on the one hand, have an interference fit with the endoscope connector to ensure the stability of the connection of the endoscope connector; on the other hand, it can also allow a deformation gap when the endoscope connector and the endoscope port are connected.

[0014] Preferably, the inner side wall of the accommodating groove is provided with a buckle which is matched and connected with the endoscope connector. The design of the buckle can increase the connection stability between the endoscope connector and the connecting seat and play a positioning role.

[0015] Preferably, the endoscope joint is an elastic joint.

[0016] In some embodiments, the endoscope connector is made of latex or silicone.

[0017] Preferably, the locking channel further has a transition section located on the other side of the spiral section.

[0018] In some embodiments, the diameter of the transition section is greater than the maximum diameter of the spiral section or the first diameter-changing section.

[0019] Preferably, the outer side wall of the operating portion has an operating knob protruding from the operating portion and fixedly connected to the operating portion.

[0020] Preferably, an outer end portion of the operating portion has a connector for connecting to an injection needle.

[0021] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0022] The utility model connects the endoscope connector on the connecting seat to the endoscope, and clamps the auxiliary treatment instrument pipeline through the cooperation of the locking piece and the connecting seat, thereby fixing the relative position of the endoscope and the auxiliary treatment instrument, avoiding displacement of the auxiliary treatment instrument during operation, and facilitating the operation.

[0023] The endoscope tube locking device of the utility model has a simple structure, good locking force, good adaptability and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the structure of the endoscope tube locking device in Example 1

[0025] Figure 2 This is a structural exploded view of the endoscope tube locking device in Example 1;

[0026] Figure 3 for Figure 2 A cross-sectional view of the endoscope tube locking device on the AA plane;

[0027] Wherein: 1. endoscope connector; 11. third reducing section; 12. interface;

[0028] 2. Connecting seat; 21. Accommodating groove; 211. Buckle; 22. First diameter reducing section; 23. First spiral section; 24. Transition section;

[0029] 3. Locking member; 31. Operating portion; 311. Second spiral section; 312. Operating knob; 313. Luer connector; 32. Clamping portion; 321. Second reducing section; 322. Straight section; 323. Protrusion; 33. Instrument channel. DETAILED DESCRIPTION

[0030] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0031] In the description of the embodiments of the present utility model, it is necessary to understand that the distal end refers to the end of the instrument or component away from the operator, and the proximal end refers to the end of the instrument or component close to the operator; the axial direction refers to the direction parallel to the line connecting the distal and proximal centers of the instrument or component; the inside and the outside are positions defined by the distance relative to the center of the instrument or component, where the inside is the position close to the center of the instrument or component, and the outside is the position away from the center of the instrument or component; the upper and the lower refer to the orientation of the instrument in actual use or working state. The description of the above-mentioned directional words is only for the convenience of describing the embodiments of the present utility model and simplifying the description, and does 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 therefore cannot be understood as a limitation on the embodiments of the present utility model.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] The disclosure above provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0035] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0036] Example 1

[0037] An endoscope tube locking device, such as Figures 1 to 3As shown, it includes a connecting seat 2, a locking member 3 and an endoscope connector 1 which are respectively arranged on the upper and lower sides of the connecting seat 2.

[0038] Specifically, the lower side of the connection seat 2 has a receiving groove 21, and the receiving groove 21 is provided with an endoscope connector 1 for connecting to the entrance of the endoscope working channel. The upper side of the connection seat 2 has a locking channel connected to the interface 12 of the endoscope connector 1, and the locking channel includes a first spiral section 23, a first diameter-reducing section 22 located at the lower side of the first spiral section 23, and a transition section 24 located at the upper side of the first spiral section 23. The diameter of the first diameter-reducing section 22 gradually decreases toward the direction close to the endoscope connector 1. Preferably, the first diameter-reducing section 22 is in an inverted truncated cone shape. The diameter of the transition section 24 is larger than the maximum diameter of the first spiral section 23 or the first diameter-reducing section 22, so as to facilitate the insertion of the locking member 3. The locking member 3 has an instrument channel 33 that passes through the locking member 3 along its axial direction and allows auxiliary treatment instruments to pass through. The locking member 3 specifically includes an operating portion 31 and a clamping portion 32 that are arranged on the upper and lower sides. The clamping portion 32 has a plurality of clamping claws arranged along the circumference of the operating portion 31. The inner side walls of the plurality of clamping claws constitute part of the above-mentioned instrument channel 33. The clamping portion 32 is inserted into the locking channel. Another part of the instrument channel 33 is opened in the middle area of ​​the operating portion 31. The outer side wall of the operating portion 31 has a thread, namely a second spiral segment 311. The operating portion 31 is partially inserted into the locking channel and is threadedly connected to the first spiral segment 23 of the locking channel.

[0039] When the locking member 3 or the connecting seat 2 is rotated, the locking member 3 can move along its axial direction relative to the connecting seat 2 toward the direction close to the endoscope connector 1, and the first diameter-reducing section 22 squeezes the clamping portion 32 so that the clamping portion 32 converges toward the axial direction of the locking member 3, thereby clamping the pipeline of the auxiliary treatment instrument located in the instrument channel 33, and then fixing the relative position of the auxiliary treatment instrument and the endoscope, avoiding displacement during the operation, and facilitating the operation. Further, when the locking member 3 or the connecting seat 2 is rotated in the reverse direction, the locking member 3 can move along its axial direction relative to the connecting seat 2 toward the direction away from the endoscope connector 1, and the first diameter-reducing section 22 releases the clamping of the locking member 3, and the locking of the auxiliary treatment instrument can be released.

[0040] The present application embeds the clamping part 32 in the locking channel. Compared with the design in which the head end of the clamping part 32 is external (such as the design of the first clamping claw disclosed in patent CN 116919312 A), the clamping part 32 of this structure has a larger contact area with the pipeline and a better locking force. In order to further increase the friction with the pipeline and ensure that the pipeline does not shift during the operation, the inner side wall of the clamping part 32 has a plurality of protrusions 323 extending toward the axial direction of the locking member 3.

[0041] Furthermore, the clamping portion 32 has a straight section 322 and a second diameter-reducing section 321. The straight section 322 is connected to the operating portion 31, and the outer diameter of the second diameter-reducing section 321 gradually decreases toward the direction close to the endoscope connector 1, and the reduction amplitude is less than or equal to the first diameter-reducing section 22. In this embodiment, the reduction amplitude of the outer diameter of the second diameter-reducing section 321 is less than that of the first diameter-reducing section 22. The minimum outer diameter of the second diameter-reducing section 321 is greater than the minimum diameter of the first diameter-reducing section 22. The design of the second diameter-reducing section 321 is conducive to the clamping portion 32 entering the locking channel on the one hand, and is conducive to its cooperation and clamping with the first diameter-reducing section 22 on the other hand.

[0042] The outer wall of the operating part 31 has an operating knob 312 protruding from the operating part 31 and fixedly connected to the operating part 31 . The upper end of the operating part 31 has a connector for connecting to an injection needle, specifically a 6% Luer connector 313 .

[0043] The endoscope connector 1 is preferably an elastic connector, specifically a connector made of elastic materials such as silicone or rubber. Such elastic connectors can avoid damage to the endoscope, are low in price, have low replacement costs, and can accommodate all types of endoscopes. In order to facilitate the auxiliary treatment equipment to enter the endoscope through the endoscope pipeline locking device, the endoscope connector 1 near the locking channel (i.e., the upper end of the interface 12 of the endoscope connector 1) has a third diameter-reducing section 11, which is connected to the interface 12 and its diameter gradually increases toward the direction close to the locking channel.

[0044] In order to increase the connection stability between the endoscope connector 1 and the connection seat 2, the endoscope connector 1 is interference-fitted with the receiving groove 21 at the lower end of the connection seat 2. Specifically, the inner diameter of the receiving groove 21 gradually expands in the direction away from the locking channel, and the minimum inner diameter of the receiving groove 21 is smaller than the outer diameter of the endoscope connector 1. Preferably, the receiving groove 21 is truncated cone-shaped. Furthermore, the inner side wall of the receiving groove 21 is arranged with a buckle 211 that matches the endoscope connector 1 and is used to position and fix the endoscope.

[0045] Preferably, the maximum inner diameter of the accommodating groove is larger than the outer diameter of the endoscope connector 1 , so that there is a deformation gap when the endoscope connector 1 and the endoscope port are connected.

[0046] Working principle:

[0047] When in use, insert the entrance of the endoscope working channel into the endoscope connector 1, insert the auxiliary treatment instrument into the instrument channel 33 from the upper end of the locking piece 3, pass through the instrument channel 33, the locking channel, and the third reducing section 11 in sequence to enter the endoscope, and pass out from the distal end of the endoscope. Fix the connecting seat 2 with one hand, and rotate the operating knob 312 with the other hand to rotate the locking piece 3 and move it toward the direction close to the endoscope connector 1. The first reducing section 22 squeezes the clamping part 32 so that the clamping part 32 converges toward the axial direction of the locking piece 3, thereby clamping the pipeline of the auxiliary treatment instrument located in the instrument channel 33, and then fix the relative position of the auxiliary treatment instrument and the endoscope, and the user can perform related operations.

[0048] When the position of the auxiliary medical device needs to be adjusted, the operating knob 312 is rotated in the reverse direction to make the clamping portion 32 release the clamping of the pipeline of the auxiliary medical device.

[0049] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An endoscope tube locking device, characterized in that: include: An endoscope connector (1), used for connecting to an entrance of an endoscope working channel; A connecting seat (2), wherein one side of the connecting seat (2) has a receiving groove (21), the endoscope connector (1) being arranged in the receiving groove (21), and the other side has a locking channel connected to an interface (12) of the endoscope connector (1), the locking channel comprising a spiral section and a first diameter-reducing section (22), the first diameter-reducing section (22) being located between the spiral section and the endoscope connector (1) and having a diameter that gradually decreases in a direction approaching the endoscope connector (1); A locking member (3), wherein the locking member (3) has an instrument channel (33) which runs through the locking member along its axial direction and through which an auxiliary treatment instrument can pass. The locking member (3) comprises an operating portion (31) and a clamping portion (32) which are arranged on both sides. The outer wall of the operating portion (31) has a thread. The operating portion (31) is partially inserted into the locking channel and is threadedly connected to the locking channel. The clamping portion (32) has a plurality of clamping claws arranged along the circumference of the operating portion (31). The inner walls of the plurality of clamping claws constitute part of the instrument channel (33). The clamping portion (32) is inserted into the locking channel. When the locking member (3) or the connecting seat (2) is rotated, the locking member (3) can move relative to the connecting seat (2) in a direction close to the endoscope connector (1), and the first diameter-reducing section (22) squeezes the clamping portion (32) so that the clamping portion (32) converges in the axial direction of the locking member (3).

2. The endoscope tube locking device according to claim 1, characterized in that: The inner side wall of the clamping portion (32) is provided with a plurality of protrusions (323) extending in the axial direction of the locking member (3).

3. The endoscope tube locking device according to claim 1, characterized in that: The clamping portion (32) comprises a straight section (322) and a second diameter-reducing section (321); the straight section (322) is connected to the operating portion (31); the outer diameter of the second diameter-reducing section (321) gradually decreases in a direction approaching the endoscope joint (1), and the reduction amplitude is less than or equal to the reduction amplitude of the first diameter-reducing section (22); the minimum outer diameter of the second diameter-reducing section (321) is greater than the minimum diameter of the first diameter-reducing section (22).

4. The endoscope tube locking device according to claim 1, characterized in that: The end of the endoscope connector (1) close to the locking channel has a third diameter-reducing section (11) connected to the interface (12), and the diameter of the third diameter-reducing section (11) gradually increases towards the direction close to the locking channel.

5. The endoscope tube locking device according to claim 1, characterized in that: The inner diameter of the accommodating groove (21) gradually expands in a direction away from the locking channel, and the minimum inner diameter of the accommodating groove (21) is smaller than the outer diameter of the endoscope connector (1), and the maximum inner diameter is larger than the outer diameter of the endoscope connector (1).

6. The endoscope tube locking device according to claim 1, characterized in that: The inner side wall of the accommodating groove (21) is provided with a buckle (211) which is matched and connected with the endoscope connector (1).

7. The endoscope tube locking device according to claim 1, characterized in that: The endoscope joint (1) is an elastic joint.

8. The endoscope tube locking device according to claim 1, characterized in that: The locking channel also has a transition section (24) located on the other side of the spiral section.

9. The endoscope tube locking device according to claim 8, characterized in that: The diameter of the transition section (24) is greater than the maximum diameter of the spiral section or the first diameter-changing section (22).

10. The endoscope tube locking device according to claim 1, characterized in that: The outer side wall of the operating portion (31) has an operating knob (312) protruding from the operating portion (31) and fixedly connected to the operating portion (31); and / or, The outer end of the operating part (31) has a connector that can be connected to an injection needle.

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