Sealing device and conduit thereof

By designing a sealing device including a shell, a vacuum pipeline and a vacuum seal, the movement of the push rod is controlled to realize the opening and closing of the vacuum pipeline, which solves the problem that the existing freezing catheter needs to be continuously powered, and achieves the self-sustaining and noise reduction of the vacuum layer.

CN223350769UActive Publication Date: 2025-09-19NINGBO SHENGJIEKANG BIOTECH
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Patent Information

Application Number
CN202422208430.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-10
Publication Date
2025-09-19
Estimated Expiration
2034-09-10

AI Technical Summary

Technical Problem

Existing cryocatheters require a continuously powered vacuum pump to maintain a vacuum state during surgery, resulting in energy waste, noise pollution, and prolonged operation time. It is also difficult to disconnect the device and create a vacuum.

Method used

A sealing device is designed, including a shell, a vacuum pipeline and a vacuum seal. The control component controls the movement of the ejector pin to realize the opening and closing of the vacuum pipeline. Elastic seals and positioning clips are used to ensure the sealing of the vacuum layer, avoiding the need for external equipment to maintain the vacuum.

Benefits of technology

The self-sustaining property of the vacuum layer during the operation is realized, the use time and noise of the equipment are reduced, the structure is simplified and the stability of the vacuum degree is maintained.

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Abstract

The utility model discloses a sealing device which comprises a shell, a vacuumizing pipeline and a vacuum sealing piece, the shell is connected with the vacuumizing pipeline, and the vacuum sealing piece is arranged in the shell to control connection and disconnection of the shell and the vacuumizing pipeline. The shell internally comprises a first cavity and a second cavity, the first cavity is connected with the vacuumizing pipeline, and the vacuum sealing element can be clamped in the first cavity so as to control connection and disconnection of the first cavity and the vacuumizing pipeline; the second cavity communicates with the outside of the shell, a control piece is arranged in the second cavity, and the control piece controls movement of the vacuum sealing piece so as to control connection and disconnection of the first cavity and the vacuumizing pipeline. By arranging the sealing device connected with the vacuum layer of the catheter, after the control piece is controlled to close the vacuumizing channel, the catheter can keep the high-vacuum state of the vacuum layer in the working state without being externally connected with vacuumizing equipment in the surgical treatment process.
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