Title:
TEMPERATURE CONTROL SYSTEM FOR MULTI-RADIO-FREQUENCY ABLATION NEEDLES AND METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/036776
Kind Code:
A1
Abstract:
A temperature control system for multi-radio-frequency ablation needles and a method therefor, which can achieve overall temperature rising in an ablated area in a roughly balanced manner and avoids the problem of big temperature differences between different parts of the ablated area. The system comprises: N radio-frequency ablation needles, a radio-frequency generator, an ablation switch array, and a controller. The controller is configured to: obtain N temperature values from temperature sensors on the N radio-frequency ablation needles; calculate, according to the N temperature values, a current reference temperature rising dynamically; obtain an upper limit for the current temperature and a lower limit for the current temperature according to the current reference temperature; and control the ablation switch array so that radio-frequency ablation needles with temperature values greater than the upper limit of the current temperature are disconnected from the radio-frequency generator and that radio-frequency ablation needles with temperature values smaller than the lower limit of the current temperature are connected to the radio-frequency generator.
Inventors:
WANG YIFEI (CN)
ZOU KE (CN)
ZOU KE (CN)
Application Number:
PCT/CN2022/131746
Publication Date:
February 22, 2024
Filing Date:
November 14, 2022
Export Citation:
Assignee:
SHANGHAI MAAGI MEDICAL TECH CO LTD (CN)
International Classes:
A61B18/12; A61B18/14
Foreign References:
| CN115177361A | 2022-10-14 | |||
| US5769847A | 1998-06-23 | |||
| CN107822707A | 2018-03-23 | |||
| CN108354665A | 2018-08-03 | |||
| CN109199578A | 2019-01-15 | |||
| CN114642501A | 2022-06-21 | |||
| US5540681A | 1996-07-30 |
Attorney, Agent or Firm:
XU & PARTNERS, LLC. (CN)
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