Biopsy device

Details Biopsy device Biopsy device

1996-02-09

1998-09-01

Millin, Vincent

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604162, 604163, 604158, 604159, 604280, A61M 1100, A61M 532, A61M 5178, A61M 2500

Patent

active

058003894

ABSTRACT:
A biopsy needle device (10) is provided which includes an introducer cannula (20) defining a lumen (25) sized to receive a biopsy needle (11) therethrough and a lateral opening (24) in communication with the lumen (25) adjacent the first end (21) of the cannula (20). The invention also includes a solid tip (30) having an anatomically distal end (31) secured to the first end (21) of the cannula (20) and a proximal end (32) configured to pierce tissue. A ramp (35) is disposed within the cannula (20) at an end (36) of the lateral opening (24) adjacent the first end (21) of the cannula (20). The ramp (35) is inclined toward the lateral opening (24), whereby a biopsy needle (11) will be deflected through the lateral opening (24) as it advances within the lumen (25) and exits the cannula (20). The invention also includes methods of obtaining a biopsy sample using the biopsy device 10 in which a sample is taken, the biopsy needle (11) is retracted, the cannula (20) is rotated and the needle 11 is readvanced to obtain another sample from a different site.

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patent: 5425376 (1995-06-01), Banys et al.
patent: 5514111 (1996-05-01), Phelps
"Minimizing Postdural Puncture Headache" by Dr. Ronald Hurley.
"ELDOR Needle Minipack" by Alexander Medical, Inc., Coral Springs, Florida.

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