Joan E. Spiegel;Samuel Duffley;Alexander H. Slocum;Adrienne Watral
发明人:
Joan E. Spiegel,Alexander H. Slocum,Adrienne Watral,Samuel Duffley
申请号：
US12688599
公开号：
US08291768B2
申请日:
2010.01.15
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A syringe having an internal pressure gauge comprises a syringe barrel； a piston within the barrel； a spring coupled to the piston at a first position of the spring, the spring having a second portion that is movable in response to fluid pressure within a syringe cavity； and a pressure gauge having an indicator correlated to a plurality of positions of the second portion of the spring to indicate a pressure of a fluid. The spring can be a bellows. The fluid chamber can be in fluid communication with a cuff of an inflatable medical device, such as an endotracheal tube, such that the measured pressure comprises the fluid pressure within the cuff.
