Ambulatory infusion pump

Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed

Patent

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Details

604153, 417234, F04B 4308

Patent

active

054824460

ABSTRACT:
A medical infusion pump (10) using a pump chamber cassette (86) has a housing (20,22) defining a pump chamber cassette receptacle (84) and a pump driving mechanism (250) for propelling liquid through the pump chamber cassette. A door (50) holds the pump chamber cassette (86) within the cassette receptacle (84) in an operative position relative to the driving mechanism (250). The cassette includes an elastomeric conduit (132), a frame (134) and clips (146,148) for attaching the elastomeric conduit (132) to the frame (134) for holding the elastomeric conduit (132) in a select position relative to the pump driving mechanism (250) of the infusion pump upon placement of the cassette (86) in an operative position relative to the pump driving mechanism (250). A anti-free flow device (136,138) includes the flexible conduit (132) received between an anvil (182) fixedly attached to the frame (134) and a pincher (132) attached to the frame (134), the pincher (138) being movable between a first position biasing the pincher (138) against the anvil (182) to occlude a lumen (150) of the elastomeric conduit (132) and a second position for eliminating the bias of the pincher (138) against the anvil (182) so as to not occlude the lumen (150) of the elastomeric conduit (132). The elastomeric conduit (132) is made of an elongate elastomeric tube having an inlet valve portion (142) and an outlet valve portion (144) made of a first material and a chamber portion (140) disposed therebetween, the chamber portion being made of a second material. The first material has a durometer of less than a durometer of the second material. The chamber portion (140), inlet valve portion (142) and the outlet valve portion (144) may have a football-shaped cross-section.

REFERENCES:
patent: 2105200 (1938-01-01), Phelps
patent: 2412397 (1946-12-01), Harper
patent: 3701618 (1972-10-01), Wail
patent: 3778195 (1973-12-01), Bamberg
patent: 4199307 (1980-04-01), Jassawalla
patent: 4273121 (1981-06-01), Jassawalla
patent: 4411652 (1983-10-01), Kramer
patent: 4416595 (1983-11-01), Cromie
patent: 4425116 (1984-01-01), Bilstad et al.
patent: 4428745 (1984-01-01), Williams
patent: 4456009 (1984-06-01), Vcelka et al.
patent: 4460358 (1984-07-01), Somerville et al.
patent: 4515536 (1985-05-01), Vanos
patent: 4586691 (1986-05-01), Kozlow
patent: 4650469 (1987-03-01), Berg et al.
patent: 4689043 (1987-08-01), Bisha
patent: 4735558 (1988-04-01), Kilenholz et al.
patent: 4842584 (1989-06-01), Pastrone
patent: 4893991 (1990-01-01), Heminway et al.
patent: 4927411 (1990-05-01), Pastrone et al.
patent: 4954055 (1990-09-01), Raible et al.
patent: 5039279 (1991-08-01), Natwick et al.
patent: 5074756 (1991-12-01), Davis
patent: 5088522 (1992-02-01), Rath et al.
patent: 5116203 (1992-05-01), Watwick et al.
patent: 5131816 (1992-07-01), Brown et al.
patent: 5211548 (1993-05-01), Okada
patent: 5242279 (1993-09-01), Knuth
patent: 5252044 (1993-10-01), Raines et al.
patent: 5273406 (1993-12-01), Feygin
patent: 5290239 (1994-03-01), Classey et al.
patent: 5336051 (1994-08-01), Tamari

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