Surgery – Truss – Pad
Patent
1994-07-01
1996-06-18
Hindenburg, Max
Surgery
Truss
Pad
A61B 1000
Patent
active
055268218
ABSTRACT:
A biopsy needle assembly and kit for acquiring a sample of tissue and method of using the same. The biopsy needle assembly includes a needle having a lumen extending therethrough terminating at its proximal end with a handle having a bore therethrough connected to said end. The proximal end of the bore of the handle includes a conical tapered section which increases in diameter from a point distal of the proximal end of the handle to the proximal end of the handle for sealably receiving an aspirator bulb. The aspirator bulb is utilized to aid in acquiring a tissue sample and retaining it within the lumen of the needle during removal of the biopsy needle assembly. An elastomeric plug can also be utilized to assist in retaining a sample. The biopsy needle assembly also includes a stylet sized for disposition within the lumen of the needle and extending beyond the distal end of the needle having a cutting edge formed on its distal end. The cutting edge can be spoon shaped, i.e. concave along two axes, and inclined with respect to the longitudinal axis of the stylet. The device also includes means for preventing rotation of the stylet relative to the needle and means for releasably securing the stylet in a fully inserted position.
REFERENCES:
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patent: 3598108 (1971-08-01), Jamshidi
patent: 3628524 (1971-12-01), Jamshidi
patent: 3630192 (1971-12-01), Jamshidi
patent: 3766916 (1973-10-01), Moorehead et al.
patent: 4163446 (1979-08-01), Jamshidi
patent: 4922602 (1990-05-01), Mehl
Hindenburg Max
Medical Biopsy, Inc.
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