Title:
STATE DETECTION AND CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/237294
Kind Code:
A1
Abstract:
A state detection and control device for detecting the state of the handle of a freezing instrument. At least two electrodes are provided on the surface of the handle of the freezing instrument close to an area to be frozen. The device comprises: providing an excitation electrical signal to at least one pair of electrodes (22); acquiring an output electrical signal of the pair of electrodes (24); calculating, according to the amplitude of the excitation electrical signal and the amplitude of the output electrical signal, an impedance value corresponding to the electrodes (26); and determining the state of the handle according to the change of the impedance value in a preset monitoring period (28). The state of the handle of the freezing instrument is determined directly by measuring the impedance value corresponding to the electrodes in contact with the area to be frozen, so that the state of the handle of the freezing instrument can be detected more promptly, accurately, and comprehensively, thereby improving the intelligence, convenience, and safety of the freezing instrument.
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Inventors:
KONG XU (CN)
HUANG CHUBO (CN)
LI HONGYUAN (CN)
HUANG CHUBO (CN)
LI HONGYUAN (CN)
Application Number:
PCT/CN2022/080181
Publication Date:
November 17, 2022
Filing Date:
March 10, 2022
Export Citation:
Assignee:
MICROPORT AESTHETICS SHANGHAI GROUP CO LTD (CN)
International Classes:
G01R27/02; A61B18/02; G05B19/04
Foreign References:
| CN113295925A | 2021-08-24 | |||
| CN212439364U | 2021-02-02 | |||
| CN112168334A | 2021-01-05 | |||
| CN111407941A | 2020-07-14 | |||
| CN109805997A | 2019-05-28 | |||
| CN112315446A | 2021-02-05 | |||
| US4140109A | 1979-02-20 | |||
| EP0494834A1 | 1992-07-15 | |||
| US5817031A | 1998-10-06 | |||
| US20160317346A1 | 2016-11-03 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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