Adaptive tubing cassettes for use in connection with interventional catheter assemblies

摘要

Peristaltic pump assemblies in which the closing and opening of a pivoting or sliding door is coordinated with movement of the occlusion bed toward and away from the rotor assembly to engage and disengage tubing within the occlusion pathway are disclosed. Linkage mechanisms provided by the interaction of cam surfaces with rollers, as well as bar linkage mechanisms, are disclosed. The linkage mechanism, in addition to providing precise displacement of the occlusion bed, may also provide an over-center feature that enhances safety and pump operation when the door is in a closed position. Latching mechanisms and sensors may be incorporated. Control consoles incorporating such peristaltic pump assemblies are described. Adaptive components such as tubing cassettes routing aspiration and/or infusion tubing in a predetermined configuration to mate with occlusion pathways in aspiration and/or infusion pump assemblies provided in various types of medical devices and control consoles are also provided.

主权项

1. An adaptive tubing cassette for use in connection with an interventional catheter assembly, comprising: a handle component having an interface region adapted to mount stably in a mating interface region of a control console; and at least two preformed tubing sections, each of the preformed tubing sections being in the form of a loop, mounted to and extending from a common side of the handle component, the at least two preformed tubing sections being adapted to mount stably in tubing receiving pathways provided in connection with the control console; wherein a first preformed tubing loop comprises a stiffer tubing material than a second preformed tubing loop.