Surgery – Truss – Pad
Patent
1986-11-24
1988-10-04
Thaler, Michael H.
Surgery
Truss
Pad
128303R, A61B 1734
Patent
active
047749482
ABSTRACT:
A marking and retraction needle. An axially extending, slot-like opening is formed in the needle near its distal end, but is axially spaced therefrom. A stylet, in the form of an elongate thin wire, is slidingly received within the hollow needle and a portion near its distal end is bent back to form a barb-like member. The barb-like member extends through the opening formed in the needle when properly aligned, but the tip or distal end of the stylet remains within the needle at all times. The barb engages tissue and anchors the needle against movement during breast manipulation for X-rays or surgical scrubbing so that a tumor the location of which is marked by the needle can be surgically removed. The stylet is removed by advancing it axially, which advancement causes the barb to enter the extreme distal end of the needle and thus to withdraw from its engagement with tissue so that both the needle and the stylet may then be partially withdrawn, redirected and repositioned as needed. The stylet may also be totally withdrawn for specimen xerography or X-raying. The needle may also be used as a retractor during surgery. Three embodiments are shown.
REFERENCES:
patent: 2541246 (1951-02-01), Held
patent: 4592356 (1986-06-01), Gutierrez
Fisher III A. W.
Thaler Michael H.
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