Title:
DYNAMIC SWITCHING APPARATUS AND DYNAMIC SWITCHING METHOD FOR MYOELECTRICITY ACQUISITION REFERENCE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2023/029287
Kind Code:
A1
Abstract:
A dynamic switching apparatus (100) and dynamic switching method for a myoelectricity acquisition reference electrode. The dynamic switching apparatus (100) comprises: several channels of measurement electrodes (11); several channels of programmable gain amplifier circuits (12), positive input terminals of the programmable gain amplifier circuits (12) being connected to output terminals of the measurement electrodes (11); and an external reference electrode (14), which is connected to the programmable gain amplifier circuits (12) by means of a reference electrode dynamic switching circuit (13). When the reference electrode dynamic switching circuit (13) is in a first state, the external reference electrode (14) is connected to negative input terminals of all programmable gain amplifier circuits (12) so as to switch a myoelectricity acquisition reference electrode to the external reference electrode (14). When the reference electrode dynamic switching circuit (13) is in a second state, the positive input terminals of all programmable gain amplifier circuits (12) are connected to the negative input terminals of the programmable gain amplifier circuits (12) after being sampled by a voltage average value to form a negative feedback loop so as to switch the myoelectricity acquisition reference electrode to an average reference electrode.
Inventors:
ZHOU XIAOMENG (CN)
LI GUANGLIN (CN)
YANG ZIJIAN (CN)
DENG XINPING (CN)
LI XIANGXIN (CN)
TIAN LAN (CN)
ZHANG HAOSHI (CN)
LI GUANGLIN (CN)
YANG ZIJIAN (CN)
DENG XINPING (CN)
LI XIANGXIN (CN)
TIAN LAN (CN)
ZHANG HAOSHI (CN)
Application Number:
PCT/CN2021/137586
Publication Date:
March 09, 2023
Filing Date:
December 13, 2021
Export Citation:
Assignee:
SHENZHEN INST OF ADV TECH CAS (CN)
International Classes:
A61B5/346; A61B5/30; A61B5/313; A61B5/389
Domestic Patent References:
| WO2017191278A1 | 2017-11-09 |
Foreign References:
| US20110227638A1 | 2011-09-22 | |||
| CN111615355A | 2020-09-01 | |||
| CN214017584U | 2021-08-24 | |||
| CN113229822A | 2021-08-10 | |||
| CN113271854A | 2021-08-17 | |||
| US20040054273A1 | 2004-03-18 | |||
| US20080159365A1 | 2008-07-03 |
Attorney, Agent or Firm:
BEIJING ZHONG XUN TONG DA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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