|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||A61M-005/142 A61M-005/168 A61M-005/148|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 774|
Systems and methods of venting a cartridge of an infusion pump system are disclosed. The system can be actively vented. A interior volume of the system can be actively vented at times when a drive mechanism of the system is inactive. Such an active venting system can include a valve that seals a volume of the cartridge that can be vented from the ambient when pressure measurements in the cartridge are made by a pressure sensor for greater measurement and calculation accuracy.
1. An ambulatory infusion system, comprising: a fluid cartridge including a collapsible reservoir for containing a fluid and a substantially rigid shell disposed over the collapsible reservoir and forming an interior volume between an outside surface of the collapsible reservoir and an inside surface of the shell;a delivery mechanism including a spool member at least partially disposed in a bore defined in the fluid cartridge, the bore defining an interior volume;a pump device configured to selectively receive the fluid cartridge and cooperate with the d...