Coaxial bone marrow biopsy needle assembly

Details Coaxial bone marrow biopsy needle assembly Coaxial bone marrow biopsy needle assembly

1993-11-01

1995-01-31

Hinderburg, Max

Surgery

Truss

Pad

A61B 1000

Patent

active

053851510

ABSTRACT:
A coaxial bone marrow biopsy needle assembly is disclosed. The assembly includes a hollow cannula with a handle having an interlocking device and a trocar insertable in the cannula and having a second handle with another interlocking device which mates with the interlocking device in the cannula handle. The interlocking devices are a spring biased pin radially entering a receiving socket, and a notched projection which extends into the receiving socket. The pin has a ramped portion, and the notched projection has a rounded or conical tip which rides down the ramped portion of the pin and thereby pushes the biased pin radially out of the socket during assembly of the hollow cannula with the trocar. The assembled handles provides a smooth upper surface which fits comfortably in a palm and a lower gripping surface around which fingers easily wrap. The interlocking devices hold the handles securely together keeping the trocar within the cannula during puncture, but are easily separated thereafter.

REFERENCES:
patent: 4256119 (1981-03-01), Gauthier
patent: 4258722 (1981-03-01), Sessions et al.
patent: 4262676 (1981-04-01), Jamshidi
patent: 4314565 (1982-02-01), Lee
patent: 4356828 (1982-11-01), Jamshidi
patent: 4403617 (1983-09-01), Tretinyak
patent: 4469109 (1984-09-01), Mehl
patent: 4487209 (1984-12-01), Mehl
patent: 4513754 (1985-04-01), Lee
patent: 4630616 (1986-12-01), Tretinyak
patent: 4655226 (1987-04-01), Lee
patent: 4793363 (1988-12-01), Ausherman et al.
patent: 4838282 (1989-06-01), Strasser et al.

Affiliated with

Also associated with

Rating

Coaxial bone marrow biopsy needle assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coaxial bone marrow biopsy needle assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coaxial bone marrow biopsy needle assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1097645