Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1995-05-16
1996-04-30
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604218, A61M 500
Patent
active
055120547
ABSTRACT:
A dual action syringe which comprises a hollow body defining a rear chamber and a front chamber, wherein the rear chamber has a greater internal cross-sectional area than the front chamber, a double action plunger mechanism comprising a primary plunger with a cross-section which matches the internal cross-section of the rear chamber and a secondary plunger telescopically mounted within the primary plunger and having a cross-section which matches the internal cross-section of the front chamber, the proximal end of the secondary plunger extending beyond the proximal end of the primary plunger and terminating in a handle which enables the plunger mechanism to be slidably moved relative to the hollow body.
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patent: 4758223 (1988-07-01), Rydell
patent: 5047015 (1991-09-01), Foote et al.
patent: 5057078 (1991-10-01), Foote et al.
patent: 5209732 (1993-05-01), Lampropoulos et al.
patent: 5354285 (1994-10-01), Mazurik et al.
Akers Lawrence C.
American Medical Systems Inc.
Dryer Mark
Richardson Peter C.
Yasko John D.
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