Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1992-02-10
1993-01-05
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604198, 604263, A61M 5178
Patent
active
051766507
ABSTRACT:
To protect against accidental needle prick a catheter and insertion device are provided wherein the needle is retractable within the device after insertion of the catheter. The device comprises a hollow barrel or tube of semi-rigid plastic material into which the needle can be retracted after use. The insertion needle is mounted on a carrier with the sharp end oriented toward an open insertion end of the barrel with the catheter snugly fit about the needle. A sliding tab is mounted to the carrier by an outwardly biased flexible member and extends through a longitudinal slot in the barrel. Near either end of the slot V notches are provided in the internal wall of the barrel to engage locking hubs on the sliding tab to releasably lock the carrier in either the exposed or retracted position. A flat catheter locking surface is provided at the insertion of the barrel with a reverse slope to allow the catheter flange to slide onto the flat surface and allow easy retraction of the needle without disturbing the inserted catheter.
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Cermak Adam J.
Moseley Richard L.
Yasko John D.
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