Volumetric pump with replaceable reservoir assembly

Details Volumetric pump with replaceable reservoir assembly Volumetric pump with replaceable reservoir assembly

1983-11-15

1987-03-10

Pellegrino, Stephen C.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604211, 604224, 604228, 604245, 128DIG12, 222390, A61M 3700

Patent

active

046488723

ABSTRACT:
An infusion pump has a removable reservoir including a piston and drive member. The drive member is an internally threaded elongated portion of the piston. A motor rotates a short drive screw, which engages the threads of the drive member to displace the piston in the reservoir. In one embodiment the piston is attached to the drive member by a severable central stem which breaks away to allow engagement with the drive screw. With the stem severed, the piston cannot be retracted, or the reservoir refilled. Other safety features are shown for locking the displaced piston in the reservoir. A digital metering system has a safety circuit to prevent dangerous failure modes of the rotation sensor and motor drive systems.

REFERENCES:
patent: 996128 (1911-06-01), Payne et al.
patent: 2602446 (1952-08-01), Glass et al.
patent: 2627270 (1953-02-01), Glass
patent: 2627999 (1953-02-01), Swan
patent: 2725877 (1955-12-01), Reiter et al.
patent: 2734504 (1956-02-01), Crescas et al.
patent: 3155090 (1964-11-01), Holter
patent: 3156236 (1964-11-01), Williamson
patent: 3395704 (1960-08-01), Frey et al.
patent: 3456649 (1969-07-01), Jewett
patent: 3623474 (1971-11-01), Hellman et al.
patent: 3631847 (1972-01-01), Hobbs
patent: 3701345 (1972-10-01), Hellman et al.
patent: 3771694 (1973-11-01), Kaminski
patent: 3790048 (1974-02-01), Luciano et al.
patent: 3811442 (1974-05-01), Maroth
patent: 3812843 (1974-05-01), Wootten et al.
patent: 3858581 (1975-01-01), Kamen
patent: 3880138 (1975-04-01), Wootten et al.
patent: 3886938 (1975-06-01), Szabo et al.
patent: 4059110 (1977-11-01), Wuthrich et al.
patent: 4073321 (1978-02-01), Moskowitz
patent: 4108177 (1978-08-01), Pistor
patent: 4126132 (1978-11-01), Portner et al.
patent: 4142524 (1979-03-01), Jassawalla et al.
patent: 4150672 (1979-04-01), Whitney et al.
patent: 4191187 (1980-03-01), Wright
patent: 4258866 (1981-03-01), Bergman
patent: 4269185 (1981-05-01), Whitney et al.
patent: 4300554 (1981-11-01), Hessberg et al.
patent: 4320757 (1982-03-01), Whitney et al.
patent: 4326517 (1982-04-01), Whitney et al.
patent: 4342311 (1982-08-01), Whitney et al.
patent: 4367738 (1983-01-01), Legendre et al.
patent: 4391272 (1983-07-01), Staempfli
patent: 4399712 (1983-08-01), Oshikubo et al.
patent: 4465475 (1984-08-01), Madorf et al.
patent: 4493704 (1985-01-01), Beard et al.

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