Dean Kamen,John Matthew Kerwin,Colin Holmes Murphy
申请号：
US13946506
公开号：
US20140031743A1
申请日:
2013.07.19
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A wearable infusion pump assembly including a reservoir for receiving an infusible fluid, and a fluid delivery system configured to deliver the infusible fluid from the reservoir to an external infusion set. The fluid delivery system includes a volume sensor assembly configured to receive a quantity of the infusible fluid from the reservoir. The volume sensor assembly includes an acoustically contiguous region having a volume that varies based upon the quantity of infusible fluid received from the reservoir, and an acoustic energy emitter configured to provide acoustic energy at a plurality of frequencies to excite a gas included within the acoustically contiguous region.
