EP 0399118 A1 19901128 - Pumping mechanism.
Title (en)
Pumping mechanism.
Title (de)
Pumpvorrichtung.
Title (fr)
Mécanisme de pompage.
Publication
Application
Priority
US 35565989 A 19890523
Abstract (en)
A snap-together peristaltic pumping mechanism (18) comprises a pump housing and a support (70) for creating a holding cavity for a peristaltic drive mechanism. Specifically, the peristaltic drive mechanism comprises a plurality of fingers (60) which sequentially urge against a resilient tube (16) to create a moving zone of occlusion therealong. The plurality of fingers (60) are reciprocally moved by a plurality of rotating cam lobes (41) which are assembled onto and coaxially held along a stationary round shaft. The cam lobes (41) are interconnected to controllably cause their respective fingers (60) to engage with and disengage from the resilient tube (16).
IPC 1-7
IPC 8 full level
A61M 5/142 (2006.01); F04B 43/08 (2006.01); F04B 43/12 (2006.01)
CPC (source: EP)
F04B 43/082 (2013.01)
Citation (search report)
- [AD] US 4755109 A 19880705 - BOTTS CHARLES R [US]
- [A] EP 0283614 A1 19880928 - FISHER SCIENT GROUP INC [US]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 89307675 A 19890727; JP 30885289 A 19891128