Christopher Brian LOCKE,Richard Daniel John COULTHARD
申请号：
US16322404
公开号：
US20200179580A1
申请日:
2017.08.03
申请国别(地区):
US
年份:
2020
代理人:
摘要：
An apparatus for providing negative-pressure therapy may comprise a negative-pressure chamber and a pneumatically-actuated service timer, which can be used to indicate an expiration or other service condition of the apparatus. The apparatus may further comprise an actuator operable to engage a timer fluid with a migration medium. The timer fluid and the migration medium may be selected so that migration time through the migration medium corresponds to an expiration condition of the apparatus. The timer may also provide indicia of migration progress or termination.
