Jason Shih,Gregory Harbers,Richard Purvis,Miho Matsuoka,Andrew Urazaki,Mark Humayun,William Andrew Brandt,Atoosa Lotfi,Didier Sagan,Andrew Dunn
申请号：
US16290501
公开号：
US20190269850A1
申请日:
2019.03.01
申请国别(地区):
US
年份:
2019
代理人:
摘要：
In various embodiments, a drug pump includes a housing and, within the housing, an expandable drug reservoir at least part of which is exposed to a pressurized propellant. The propellant exerts a substantially constant pressure on the drug reservoir. A flow restrictor significantly limits outflow from the pump, and preferably has both a small diameter and a long path length, which acts to control the outflow from the drug reservoir. As a result, the pump produces a substantially constant outflow.
