Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1989-06-02
1991-04-30
Pellegrino, Stephen C.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604263, A61M 532
Patent
active
050114751
ABSTRACT:
This invention includes an external protective sheath for normally enclosing a medical needle to provide a safety protective enclosure normally surrounding the needle, but being adapted to be temporarily removed from needle enclosing protective position to expose the needle for use in penetrating a patient's blood vessel for injection of medication from a syringe or for introduction of intravenous tubing and said sheath being moveable back into protective position around the needle after use.
REFERENCES:
patent: 4681567 (1987-07-01), Masters et al.
patent: 4838871 (1989-06-01), Luther
patent: 4840619 (1989-06-01), Hughes
Adams John W.
Lewis Ralph A.
Pellegrino Stephen C.
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