发明授权
- 专利标题: RF generator system for surgical vessel sealing
- 专利标题(中): 射频发生器系统用于手术容器密封
-
申请号: US13277979申请日: 2011-10-20
-
公开(公告)号: US09039694B2公开(公告)日: 2015-05-26
- 发明人: David Ross , Joel Helfer
- 申请人: David Ross , Joel Helfer
- 申请人地址: US CO Boulder
- 专利权人: JUST RIGHT SURGICAL, LLC
- 当前专利权人: JUST RIGHT SURGICAL, LLC
- 当前专利权人地址: US CO Boulder
- 代理机构: Neugeboren O'Dowd PC
- 主分类号: A61B18/12
- IPC分类号: A61B18/12 ; H02M7/48 ; A61B18/14 ; A61B18/00
摘要:
Systems, methods, and apparatus for providing power to an electrosurgical instrument. In particular, a power supply is disclosed in which non-sinusoidal (e.g., pulsed) constant frequency voltage having a variable amplitude is passed to an LC circuit to produce a quasi-sinusoidal current in the LC circuit. The constant driving frequency can be one half the resonant frequency of the LC circuit allowing the LC circuit to operate as an impedance, and thus limit current spikes and arcing. The frequency and phasing of the driving voltage also enables the LC circuit to discharge energy back into a power provider of the power supply so that energy does not build up in the LC circuit. These features result in less severe current spikes and arcing, as well as reduced cutoff times.
公开/授权文献
- US20120098351A1 RF Generator System for Surgical Vessel Sealing 公开/授权日:2012-04-26