Title:
CONTROL METHOD AND APPARATUS FOR ULTRASONIC SURGICAL INSTRUMENT, SURGICAL DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/174136
Kind Code:
A1
Abstract:
A control method and apparatus for an ultrasonic surgical instrument (20), a surgical device, and a storage medium. The control method comprises the following steps: applying a driving signal to the ultrasonic surgical instrument (20), so as to enable the ultrasonic surgical instrument (20) to vibrate under the action of the driving signal, wherein the driving signal comprises a driving frequency (S100); during the process of cutting a target tissue by the ultrasonic surgical instrument (20), acquiring a feedback current, a feedback voltage, a capacitive reactance and a phase angle of the ultrasonic surgical instrument (20) (S200); on the basis of the feedback current, the feedback voltage and the capacitive reactance, determining a target phase angle for enabling the ultrasonic surgical instrument (20) to vibrate in a resonant state (S300); and comparing the target phase angle and the phase angle, and according to the comparison result, adjusting the driving frequency, so as to enable the ultrasonic surgical instrument (20) to vibrate in the resonant state (S400). In the control method, the phase difference and the target phase difference are compared, and according to the comparison result, the driving frequency is adjusted, so that the purpose of tracking the resonant frequency is achieved.
Inventors:
LV XIAOYU (CN)
ZHONG BAOXUAN (CN)
SHI WENYONG (CN)
ZHONG BAOXUAN (CN)
SHI WENYONG (CN)
Application Number:
PCT/CN2023/080378
Publication Date:
September 21, 2023
Filing Date:
March 09, 2023
Export Citation:
Assignee:
HOCERMED BEIJING MEDICAL TECH CO LTD (CN)
International Classes:
A61B17/32
Foreign References:
| CN103027708A | 2013-04-10 | |||
| CN110151270A | 2019-08-23 | |||
| CN104516290A | 2015-04-15 | |||
| CN109646109A | 2019-04-19 | |||
| CN113633350A | 2021-11-12 | |||
| US20210228259A1 | 2021-07-29 |
Attorney, Agent or Firm:
LIU , SHEN & ASSOCIATES (CN)
Download PDF: