公开(公告)号：US20210128824A1

公开(公告)日：2021-05-06

申请号：US16674722

申请日：2019-11-05

Applicant: INSULET CORPORATION

Inventor： Andrew BOWSER ,  Steven CARDINALI

IPC: A61M5/142 ,  A61M5/145 ,  A61M5/168

Abstract: Disclosed herein are wearable drug delivery devices and methods for component positioning of a linear shuttle pump. In some approaches, a pump may include a pump chamber operably coupled with a piston, and a detent apparatus, wherein the detent apparatus comprises a detent body, a detent arm, and a detent engagement member. The detent engagement member may be retained in direct physical contact with first or second arrest locations of either the detent body or the detent arm. The pump may further include a piston grip coupled to the piston, the piston grip including a grip component engaged with an exterior of the piston. Movement of the piston grip may cause the piston to move axially relative to the pump chamber to control receipt and delivery of a liquid drug.

公开(公告)号：US20200164143A1

公开(公告)日：2020-05-28

申请号：US16697920

申请日：2019-11-27

Applicant: Insulet Corporation

Inventor： Steven CARDINALI ,  Lucas MCGAHREN ,  Nicholas LAU ,  Ian MCLAUGHLIN

IPC: A61M5/168 ,  A61M5/142

Abstract: A multiple pulse volume shuttle pump powered by a shape memory alloy (SMA) wire is disclosed. In some embodiments, a shuttle pump system may include a pump chamber, a valve operable with the pump chamber, and a wire coupled to a valve shaft of the valve for controlling a position of the valve. The shuttle pump system may further include a pin disposed within an inset pathway of a cam, wherein the pin is moveable between multiple positions of the inset pathway in response to actuation of the valve shaft.