Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1999-03-26
2000-09-12
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604171, 604263, A61M 500
Patent
active
061171107
ABSTRACT:
A safety apparatus and method of use for a catheter and needle combination. An automatic sheathing system protects clinical personnel from accidental needle sticks after withdrawing the needle from a patient. The device consists of a clear, plastic needle guard with a flanged-end opening that allows a polytetrafluoroethylene catheter and needle to protrude (covered by a protective cap), but prevents the hubs of each from passing outside. For venipuncture, the cap is removed and the needle tip passes through the catheter. The user, employing a one-handed method, punctures the skin of the patient with the needle tip and locates a vein. The needle is then withdrawn as the catheter slides over the needle tip into the vein. A needle guard, including a one-way detent and a restraining ledge, captures the needle hub when the needle is withdrawn. At all times during the withdrawal process the needle guard encloses the needle tip. As the guard captures the needle, the catheter continues to be gripped by a flanged end of the guard. When the user is ready to release the catheter, the guard is squeezed near the flanged end expanding the opening and allowing the user to remove the guard leaving the catheter in place.
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