Mark A. Destefano,Lawton Laurence,John C. Love,Ian B. Hanson,Paul F. Bente, IV
申请号：
US16819443
公开号：
US20200222624A1
申请日:
2020.03.16
申请国别(地区):
US
年份:
2020
代理人:
摘要：
An insertion mechanism for a drug pump includes an insertion mechanism housing； a sleeve； a rotational biasing member initially held in an energized state； a retraction biasing member and a hub connected to a proximal end of a needle, wherein the retraction biasing member is held initially in an energized state between the hub and the sleeve. The needle is inserted into a target tissue by the rotational biasing member and interaction between the hub and housing. Retraction of the needle is caused by decompressing or de-energizing of the retraction biasing member. A drug delivery pump includes an activation mechanism, a drive mechanism, a sterile access connection, and the insertion mechanism. Assembly and operation methods are provided.
