Manual machine-control switching device and anaesthesia machine

By designing a manual motor-controlled switching device including a mounting base, a lever mechanism and a swing rod assembly, the problem of the intermediate point in the switching process of the manual motor-controlled selection switch in the prior art is solved, and the safe and reliable switching of the anesthesia machine is achieved.

CN119770808AActive Publication Date: 2025-04-08MEDCAPTAIN MEDICAL TECH
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Patent Information

Application Number
CN202411989752.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-04-08
Estimated Expiration
2044-12-31

AI Technical Summary

Technical Problem

There is an intermediate point during the switching process of the existing manual motor-controlled selection switch, which causes the anesthesia machine to stop in the intermediate state of the manual state and the machine-controlled state, resulting in the problem of mutual communication between the manual mode branch and the machine-controlled mode branch.

Method used

A manual switching device is designed, including a mounting base, a lever mechanism and a swing rod assembly. The lever mechanism realizes switching between the manual state of the anesthesia machine and the machine-controlled state through the cooperation of the lever assembly and the movable member, and prevents the lever mechanism from being stopped in the middle position through the swing rod assembly.

Benefits of technology

It effectively avoids the intermediate state of the anesthesia machine during the switching process, prevents the air flow between the manual mode branch and the machine-controlled mode branch, and improves the safety and reliability of the switching.

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Abstract

The invention belongs to the field of medical equipment, and provides a manual operation and control switching device for an anaesthesia machine, which comprises a mounting seat arranged on a rack of the anaesthesia machine; the shifting rod mechanism is arranged on the mounting seat and can rotate between a first rotating position and a second rotating position relative to the mounting seat so as to trigger and control the anaesthesia machine to be switched between a manual state and a mechanical control state; the swing rod assembly is rotationally connected with the shifting rod mechanism and the anaesthesia machine, and the shifting rod mechanism and the swing rod assembly can rotate synchronously; when the driving lever mechanism is located at a middle position between the first rotating position and the second rotating position, between the first rotating position and the middle position and between the second rotating position and the middle position, the driving lever mechanism is driven to rotate. The swing rod assembly drives the shifting rod mechanism to rotate towards the first rotating position or the second rotating position, rotate towards the first rotating position and rotate towards the second rotating position. The invention further provides an anaesthesia machine. The anaesthesia machine is only in a manual state or a mechanical control state and does not have an intermediate state.
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Citation Information

Patent Citations

  • Mode switching method in hand-operated state of anaesthesia machine

    CN106924853A

  • Control switch, anesthesia machine ventilation system and anesthesia machine

    CN111110971A

  • Anaesthesia machine and gas circuit switching system thereof

    CN115040743A

  • Change-over switch, anaesthesia machine gas circuit switching system and anaesthesia machine

    CN218046099U