Squeeze-actuated syringe

Details Squeeze-actuated syringe Squeeze-actuated syringe

1985-01-28

1986-04-08

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604214, 604187, 222103, 222 96, A61M 518

Patent

active

045810214

ABSTRACT:
A syringe for use with collapsible ampoules pre-filled with a liquid medicament includes a body that forms an open receptacle for the ampoule and a handle attached by a hinge to one end of the body so as to be in opposed relationship with the ampoule. The handle carries a compression pad on its underside, so that the handle can be squeezed toward the body to compress the ampoule. The body has a fitting at its proximal end for the attachment of a double-ended disposable needle. When the needle is attached to the fitting, the distal end of the needle passes through the fitting and punctures the ampoule, allowing the contents of the ampoule to flow into the needle as the ampoule is compressed. In one embodiment, the handle is hinged to the proximal end of the body; in a second embodiment, it is hinged to the distal end. In both embodiments, the pad is maintained in substantially parallel alignment with the longitudinal axis of the body. A lever is advantageously provided on the body which can be selectively moved into engagement with the handle to lock the handle into a pre-selected position with respect to the body.

REFERENCES:
patent: 798093 (1905-08-01), Dean
patent: 1222814 (1917-04-01), Stotz
patent: 1880354 (1932-10-01), Mueller
patent: 2618263 (1951-03-01), Lakso et al.
patent: 2781951 (1957-02-01), Hanford
patent: 3099264 (1963-07-01), Hubbard
patent: 3114369 (1963-12-01), Hall
patent: 3332579 (1967-07-01), Peters
patent: 4013073 (1977-03-01), Cunningham
patent: 4432768 (1984-02-01), Brown et al.
patent: 4475906 (1984-10-01), Holzner

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