Al Almendinger,Gregory Pat Spar,Koen Jacob Weijand,Randy Maas,Steve Ellsworth
申请号:
US13793715
公开号:
US20130238048A1
申请日:
2013.03.11
申请国别(地区):
US
年份:
2013
代理人:
摘要:
A therapy system for applying an electrical signal to an internal anatomical feature of a patient includes an implantable component and an external component. The medical device can be checked for safety issues by periodically initiating a sequence of tests of an H-bridge circuit, and, during each test, monitoring a current flow through a sensing resistor electrically connected between a sensing connection of the H-bridge circuit and a ground. Current flow through the sensing resistor indicates that both series electrical switches within at least one of the two pairs of series electrical switches are active during that test.