Method of storing an ampoule for a needleless hypodermic injecto

Details Method of storing an ampoule for a needleless hypodermic injecto Method of storing an ampoule for a needleless hypodermic injecto

1975-11-24

1977-03-08

Michell, Robert W.

Surgery

Truss

Pad

128272, 128218D, 128DIG5, 53 22R, 141 2, 141 7, A61M 530

Patent

active

040107477

ABSTRACT:
A method of needleless medicant injection with an ampule having a medicant chamber and a bore extending therefrom dimensioned for needleless injection which includes the steps of evacuating the medicant chamber such that it is at less than ambient pressure, sealing the chamber from ambient pressure, thereafter exposing the chamber to a contained medicant to permit transfer of the medicant into the chamber, and then exposing the medicant in the chamber to a higher than ambient pressure to force it through the bore.

REFERENCES:
patent: 2816544 (1957-12-01), Scherer et al.
patent: 2877611 (1959-03-01), Anrep
patent: 3202151 (1965-08-01), Kath

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