Mucous membrane liquid feeding device and endoscopic surgery equipment

By designing a connecting tube with an inner diameter structure gradient, combined with the power setting of the peristaltic pump, the sliding and flow reduction problems during high-pressure fluid delivery in endoscopic surgery are solved, and the stable high-pressure fluid delivery is achieved and the surgical effect is improved.

CN222885381UActive Publication Date: 2025-05-20HANGZHOU AGS MEDTECH CO LTD
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Patent Information

Application Number
CN202421238090.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2023-05-31
Filing Date
2024-05-31
Publication Date
2025-05-20
Estimated Expiration
2034-05-31

AI Technical Summary

Technical Problem

The existing endoscopic liquid delivery device is prone to expanding when water is transported under high pressure, causing liquid delivery to slide, the peristaltic pump head to idle, the pressure drops and the flow rate of the water outlet, affecting the surgical effect.

Method used

A mucosal liquid delivery device is designed, including a connecting pipe, which consists of a liquid inlet pipe, a peristaltic pump pipe and a liquid outlet pipe. The inner diameter of the liquid inlet pipe is greater than the inner diameter of the peristaltic pump pipe, and the inner diameter of the peristaltic pump pipe is greater than the inner diameter of the liquid outlet pipe. Through the comprehensive setting of the power of the peristaltic pump and the inner diameter ratio of the pipe, the transmission pressure in the liquid outlet pipe reaches more than 500kpa.

Benefits of technology

It realizes stable liquid delivery under high pressure, avoids liquid transfer and idling of the pump head, ensures high pressure and sufficient flow of the water outlet during the operation, and improves the surgical effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides a mucous membrane liquid feeding device and endoscopic surgery equipment. The mucous membrane liquid feeding device comprises a connecting pipe; the connecting pipe comprises a liquid inlet pipe, a peristaltic pump pipe, a liquid outlet pipe, a first joint and a second joint; the liquid inlet pipe is connected with one end of the peristaltic pump pipe through a first joint; the other end of the peristaltic pump pipe is connected with the liquid outlet pipe through a second joint; the inner diameter of the liquid inlet pipe (11) is larger than or equal to that of the liquid outlet pipe (13). The endoscopic surgery equipment comprises a surgical instrument and a mucous membrane liquid feeding device. An outlet of the liquid outlet pipe of the connecting pipe is communicated with a liquid inlet of the surgical instrument.
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Claims

1. A mucosal liquid delivery device, characterized in that: It includes a connecting pipe (10); The connecting pipe (10) comprises a liquid inlet pipe (11), a peristaltic pump pipe (12), a liquid outlet pipe (13), a first joint (14) and a second joint (15); The liquid inlet pipe (11) is connected to one end of the peristaltic pump tube (12) via the first joint (14); The other end of the peristaltic pump tube (12) is connected to the liquid outlet tube (13) via the second joint (15); The inner diameter of the liquid inlet pipe (11) is greater than or equal to the inner diameter of the liquid outlet pipe (13).

2. The mucosal liquid delivery device according to claim 1, characterized in that: The inner diameter of the liquid inlet pipe (11) is greater than the inner diameter of the liquid outlet pipe (13).

3. The mucosal liquid delivery device according to claim 1, characterized in that: The inner diameter of the liquid inlet tube (11) is greater than the inner diameter of the peristaltic pump tube (12), the inner diameter of the peristaltic pump tube (12) is greater than the inner diameter of the liquid outlet tube (13), and the inner diameter of the peristaltic pump tube (12) ranges from 1.6 mm to 5 mm.

4. The mucosal liquid delivery device according to claim 1, characterized in that: The inner diameter of the peristaltic pump tube (12) ranges from 1.6 mm to 5 mm, and the ratio of the inner diameter of the peristaltic pump tube (12) to the inner diameter of the liquid outlet tube (13) is 1.1 to 2.

5.

5. The mucosal liquid delivery device according to claim 1, characterized in that: It also includes a peristaltic pump (20), the peristaltic pump tube (12) is installed in the peristaltic pump (20), the power range of the peristaltic pump (20) includes 60W-200W, and when the output power of the peristaltic pump (20) is 120W, the transmission pressure in the liquid outlet pipe (13) is not less than 500kPa.

6. The mucosal liquid delivery device according to claim 1, characterized in that: The ratio of the inner diameter of the liquid inlet tube (11) to the inner diameter of the peristaltic pump tube (12) is 1.1 to 2.

5.

7. The mucosal liquid delivery device according to claim 1, characterized in that: The flexibility of the peristaltic pump tube (12) is greater than the flexibility of the liquid inlet tube (11) and the liquid outlet tube (13), and the peristaltic pump tube (12) is a polyvinyl chloride tube.

8. The mucosal liquid delivery device according to claim 1, characterized in that: The second joint (15) is a two-way joint, and the second joint (15) comprises a front connecting portion (151), a rear connecting portion (152) and a connecting portion (153); The liquid outlet pipe (13) is connected to the front end connecting portion (151); The other end of the peristaltic pump tube (12) is connected to the rear end connection portion (152); The connecting portion (153) communicates with the front connecting portion (151) and the rear connecting portion (152).

9. The mucosal liquid delivery device according to claim 8, characterized in that: The connecting portion (153) comprises a cylindrical hole, the diameter of which is between the inner diameter of the peristaltic pump tube (12) and the inner diameter of the liquid outlet tube (13).

10. The mucosal liquid delivery device according to claim 8, characterized in that: The connecting portion (153) comprises a variable diameter hole, the front end diameter of the variable diameter hole is the same as the inner diameter of the liquid outlet tube (13); the rear end diameter of the variable diameter hole is the same as the inner diameter of the peristaltic pump tube (12), and the angle between the generatrix of the variable diameter hole and the axis of the second joint is 30 to 80 degrees.

11. The mucosal liquid delivery device according to claim 1, characterized in that: It also comprises a liquid box (30) and a peristaltic pump (20); the peristaltic pump (20) comprises a pump head (21), and the pump head (21) is used to limit the position of the peristaltic pump tube (12); after the peristaltic pump tube (12) is installed in the peristaltic pump (20), the first connector (14) abuts against the pump head (21); The inlet of the liquid inlet pipe (11) is in communication with the liquid box (30); The peristaltic pump tube (12) is installed in the peristaltic pump (20).

12. An endoscopic surgical device, characterized in that: It comprises a surgical instrument (200) and a mucosal fluid delivery device as claimed in any one of claims 1 to 11; The outlet of the liquid outlet pipe (13) of the connecting pipe (10) is in communication with the liquid inlet (210) of the surgical instrument (200).

13. The endoscopic surgical device according to claim 12, characterized in that: It also comprises a liquid outlet connector (220), through which the outlet of the liquid outlet pipe (13) is connected to the liquid inlet (210) of the surgical instrument (200); The liquid outlet joint (220) comprises a front end channel (221), a liquid outlet pipe connecting channel (222) and a connecting portion (223); The connecting portion (223) is threadedly connected to the liquid inlet (210); The outlet of the liquid outlet pipe (13) is connected to the liquid outlet pipe connecting channel (222); The front channel (221) is connected to the outlet of the liquid outlet pipe (13) and the liquid inlet (210), and the aperture of the front channel (221) gradually decreases from the rear end to the front end.

14. The endoscopic surgical device according to claim 12, wherein: The surgical instrument (200) is provided with a liquid channel (230), and the liquid channel is in communication with the liquid inlet (210); The inner diameter of the liquid channel (230) is smaller than the inner diameter of the liquid outlet pipe (13).