Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1981-07-08
1983-12-20
Recla, Henry J.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 72, A61M 530
Patent
active
044215088
ABSTRACT:
A needleless vacuum-compression injector applies a continuous vacuum between a medicament holder and an outwardly extending member spaced therefrom. The continuous vacuum holds tissue taut and immobilizes the tissue over a nozzle without puncturing the tissue. Pressurized gas then injects the medicament into the tissue to a predetermined depth determined by the pressure of the gas. The outwardly extending member can be a removable sleeve. Particularly for oral applications, the tissue-engaging surface of the outwardly extending member can be oval or otherwise non-circular in shape to accommodate the shape of the tissue to be injected.
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patent: 2945496 (1960-07-01), Fosdal
patent: 3057349 (1962-10-01), Ismach
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patent: 3167071 (1965-01-01), Venditty
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patent: 3933155 (1976-01-01), Johnston
patent: 3945383 (1976-03-01), Bennett et al.
patent: 4284077 (1981-08-01), Wagner
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