Applied Medical Technology, Inc.

Ray Morrissey

Barry Lillis

Serge Barneaud

Steven McLellan

A catheter assembly is disclosed herein including a hub assembly and a needle retracting device. The hub assembly includes a hub and a catheter attached to the hub. The needle retracting device releasably attached to the hub assembly and arranged to project a needle through the catheter for catheterization and to retract the needle and allow detachment from the hub assembly. The needle retracting device includes a chassis extending from a base and a slider carrying the needle supported on the chassis. The slider arranged to move away from the base from a position in which the needle projects through the catheter to a position in which the needle is withdrawn from the catheter and shielded by the chassis. The chassis and hub include movable locking members and cooperating locking surfaces for engaging the locking members. The slider includes retaining surfaces for limiting movement of the locking members.

Catheter assembly

A cannula insertion device comprises an elongate frame () and a hub () mounted to the frame and arranged to be slidably moveable from a first position forwards along a longitudinal axis to a second position relative to the frame and a needle () projecting forwards from the hub and carrying a detachable cannula () assembly including a cannula. The frame and hub are arranged to allow the hub to be moved forwards from the first position to the second position so as to insert the cannula into a patient and to be drawn backwards to a withdrawn position. The needle is shielded by the frame when the hub is in the first position and also when in the withdrawn position.

Growing community of inventors

Cambridge, United Kingdom

Ray Morrissey