Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1996-05-17
1997-07-22
Rimell, Sam
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 51, 604165, 604168, A61M 532, A61M 5178, A61M 500
Patent
active
056499116
ABSTRACT:
A catheter assembly comprising a needle received within a catheter. The needle has a solid tip and a hole in the cylindrical wall of the needle that communicates with the internal passageway of the needle. The needle is received within the lumen of the catheter, the catheter having a hole in its side wall that aligns with the side hole of the needle. Alignment of the side holes is provided by complementary alignment features on the proximal ends of the needle and catheter. The needle may be connected to a flash chamber for observation of fluid from the cavity. Fluid does not flow into the needle without first entering the side hole of the catheter. Observation of fluid in the flash chamber will not occur until the side hole of the catheter contacts the fluid. This side entrance provides positive indication that the distal end of the catheter has entered the cavity.
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Photographs of product "B D Whitacre Needle" marketed by Becton Dickinson and Company.
Indiana University Foundation
Racunas Robert V.
Rimell Sam
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