Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1991-08-05
1993-08-03
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604197, 604198, 604228, 604239, A61M 532
Patent
active
052324575
ABSTRACT:
A medical syringe having a disposable capsule, or capsule, containing the needle and the injection fluid, the syringe including a barrel assembly having a thumb ring attached to a plunger by a plurality of connecting rods, the plunger working like a piston inside a barrel having finger grips to cooperate with the thumb ring and a central locking rod to connect to a disposable shielded needle capsule, the capsule including a space for holding the supply of injection fluid and a movable piston at the top of that space for contact with the plunger, and a central tubular guide as a sheath for a hollow needle having a needle plug which is attachable to the locking rod and two spaced gaskets around the needle and positioned on each side of a passageway through the wall to be in alignment with a passageway through the tubular guide to allow the fluid to flow into the hollow of the needle.
REFERENCES:
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patent: 2244969 (1941-06-01), Smith
patent: 2705956 (1955-04-01), McLaughlin
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patent: 3584626 (1971-06-01), Johansson
patent: 4808169 (1989-02-01), Haber et al.
patent: 4834717 (1989-05-01), Haber et al.
patent: 4927414 (1990-05-01), Kulli
patent: 4941883 (1990-07-01), Venturini
patent: 4943282 (1990-07-01), Page et al.
Bockelman Mark
Rosenbaum C. Fred
Yeager Arthur G.
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