公开(公告)号：US20150209505A1

公开(公告)日：2015-07-30

申请号：US14423529

申请日：2013-08-29

申请人： UNITRACT SYRINGE PTY LTD

发明人： Ian B Hanson ,  Paul F Bente ,  Kevin Bokelman ,  John C Love

IPC分类号： A61M5/145

CPC分类号： A61M5/1454 ,  A61M5/1452 ,  A61M5/14546 ,  A61M5/14566 ,  A61M5/16804 ,  A61M2005/14208 ,  A61M2202/0007 ,  A61M2205/3334

摘要： A controlled delivery drive mechanism includes a drive housing, a piston, and a biasing member initially retained in an energized state and is configured to bear upon an interface surface of the piston. The piston is configured to translate a plunger seal and a barrel. A tether is connected between the piston and the winch drum to restrain the free expansion of the biasing member and the free axial translation of the piston upon which the biasing member bears upon. The drive mechanism may further include a gear assembly having a motor configured to drive the gear assembly to release the tether from the winch drum. The metering of the tether by the motor controls the rate or profile of drug delivery to a user. A drug delivery pump includes such a controlled delivery drive mechanism. A control system may be utilized to control the desired drug delivery rate/profile.

摘要翻译： 控制传递驱动机构包括驱动壳体，活塞和初始保持在通电状态的偏置构件，并且构造成承载在活塞的界面表面上。 活塞构造成平移柱塞密封件和筒体。 连杆系连接在活塞和绞盘鼓之间，以限制偏置构件的自由膨胀和偏置构件所承载的活塞的自由轴向平移。 驱动机构还可以包括具有马达的齿轮组件，该马达构造成驱动齿轮组件以从绞盘鼓释放系绳。 电动机对系绳的计量控制药物递送给用户的速率或分布。 药物输送泵包括这种受控输送驱动机构。 可以使用控制系统来控制所需的药物递送速率/分布。