Oriented biopsy needle assembly

Details Oriented biopsy needle assembly Oriented biopsy needle assembly

1991-08-30

1993-10-05

Hindenburg, Max

Surgery

Truss

Pad

A61B 1000

Patent

active

052495825

ABSTRACT:
The oriented biopsy needle assembly includes a cannula hub assembly having a cannula hub fixedly attached to the proximal end of a cannula and a leg extending proximally from the proximal end of the cannula hub.. The cannula hub has a longitudinal coaxial bore therethrough axially aligned with and extending to the cannula. A stylet hub assembly fixedly attached to a sampling stylet includes a stylet hub at a proximal end, a shoulder portion, and a stem portion extending distally from the shoulder portion and terminating at a distal tip member. The distal tip member is slidably received on a rail of the leg extending proximally from the cannula hub to avoid undesirable rotational movement of the stylet and allow longitudinal movement of the stylet hub assembly on the rail only when the distal tip member is oriented such that the sharpened distal ends of the cannula and sampling stylet are oppositely directed. The distal tip member further includes a pair of distal guide teeth and a pair of proximal brace projections which cooperate with a rail stop at the proximal end of the rail to orientate the stylet hub assembly in a proximally retracted removably latched spaced relationship to the cannula hub assembly. Dislodging the tip member from the rail stop allows proximal withdrawal of the sampling stylet from the cannula so that multiple biopsies may be obtained with one insertion of the cannula.

REFERENCES:
patent: D306070 (1990-02-01), Akerfeldt
patent: D309014 (1990-07-01), Akerfeldt
patent: 3477423 (1969-11-01), Griffith
patent: 4356828 (1982-11-01), Jamshidi
patent: 4469109 (1984-09-01), Mehl
patent: 4600014 (1986-07-01), Beraha
patent: 4699154 (1987-10-01), Lindgren
patent: 4735215 (1988-04-01), Goto et al.
patent: 4881551 (1989-11-01), Taylor
patent: 5121751 (1992-06-01), Panalletta

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-996612