Surgery – Truss – Pad
Patent
1990-08-23
1992-02-25
Hindenburg, Max
Surgery
Truss
Pad
A61B 1000
Patent
active
050904191
ABSTRACT:
An apparatus and method for acquiring biopsy specimens includes an outer cannula having a bevelled distal end and an opposing proximal end having a Luer-type fitting. A stylet having a like bevelled distal end is inserted within the outer cannula before the cannula is placed within the patient. Following placement of the outer cannula, the stylet is removed, and a biopsy actuator equipped with a biopsy needle is then inserted within the proximal end of the cannula. The distal tip of the biopsy needle is provided with a specimen retaining notch. The biopsy actuator includes a mating Luer-type fitting that is releasably attached to the proximal end of the cannula. The biopsy actuator includes a spring-loaded trigger mechanism for advancing the distal end of the biopsy needle to expose the specimen retaining notch, and thereafter rapidly advances the distal end of the cannula to cut tissue prolapsed within the notch. The Luer fittings are then disengaged, the biopsy actuator is withdrawn, and a second specimen may then be taken by inserting a second biopsy actuator in a like manner.
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patent: 4924878 (1990-05-01), Nottke
patent: 4958625 (1990-09-01), Bates et al.
Becton et al., "Biopsy Needles & Instruments for Advanced Techniques", Becton, Dickmson and Co. Pamphlet , 12 pages, 10/74.
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Brochure entitled "Medi-Tech ASAP Biopsy System", published by Boston Scientific Corporation, of Watertown, Mass., believed to have been printed in Feb. 1990.
Brochure entitled "Microinvasive ASAP 18 Automatic Biopsy System", published by Boston Scientific Corporation, of Watertown, Mass, believed to have been printed in Sep. 1989.
Advertisement entitled "Klear Kut", publication date not known (before Aug. 90).
Pamphlet entitled "Bard Biopty Instrument Biopty-Cut Needle", believe to have been published by Bard Urological Division of C. R. Bard, Inc. of Covington, Ga, on or about Sep. 1987.
Parker et al., "Technical Note: Adaptation of the Bard Prostate Biopsy Gun for CT-Guideed Abdominal Biopsies", Cardio Vasculer and Interventional Radiology, (1989) 12: 50-52.
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Cook Urological Incorporated brochure entitled "Roth Spiral Rotating Biopsy Needle", published by Cook Urological Incorporated of Spencer, Ind., Bearing a 1986 Copyright Notice.
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