Lesion location device

Details Lesion location device Lesion location device

1990-04-16

1991-10-22

Cohen, Lee S.

Surgery

Instruments

Means for marking animals

604264, 604164, 128657, 128658, A61B 1734

Patent

active

050591975

ABSTRACT:
A lesion location device suitable for marking a lesion in breast tissue comprises a wire, of which the first portion which has been bent to form a second portion at an obtuse or acute angle to the first portion, a 180.degree. bend and a third portion which extends adjacent the second portion and continues beyond the bend in a direction substantially opposed to that of the second portion. The bend is resiliently pivotable and forms a spring mechanism to prevent ingress of the wire once in position in the lesion. Two graduated cannulas are also provided, one with a pointed end and one with a blunt end, which are suitable for the wire to be passed into them.

REFERENCES:
patent: 3836775 (1974-09-01), Gullekson
patent: 4582061 (1986-04-01), Fry
patent: 4616656 (1986-10-01), Nicholson et al.
patent: 4774948 (1988-10-01), Markham
patent: 4950228 (1990-08-01), Knapp et al.
patent: 4958642 (1990-09-01), Christian et al.
Judkins, "Selective Coronary Arteriography", Radiology, vol. 89, No. 5, pp. 815-824 (1967).
Kopans et al, "Spring Hookwire Breast Lesion Localizer", Radiology 1985; 157:53738.

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