Surgery – Truss – Perineal
Patent
1975-03-27
1976-02-17
Howell, Kyle L.
Surgery
Truss
Perineal
128218C, 128347, 128329R, A61B 1000
Patent
active
039385051
ABSTRACT:
A biopsy aspirating device for gathering soft tissue samples comprising a syringe having a barrel, with a plunger sealingly received within the barrel to form a chamber with a controllably variable volume, and with a hollow sample-receiving needle mounted on a needle mounting boss attached to the barrel. The needle mounting boss has a bore formed therein to provide communication between the needle bore and the barrel with sample blocking means having an abutment surface thereon being provided to engage the sample and retain the sample in a position to prevent direct contact between the sample and the bore formed in the boss. The plunger is secured to the conventional gripping shaft, and the gripping shaft has means for releasably engaging the proximate end of the barrel at controllable axial dispositions therealong. In use, the needle is used to puncture the body, and the tip of the needle is advanced until it reached a point adjacent the organ from which the tissue is to be collected. At this point, the plunger is withdrawn and locked into engagement with the barrel, so as to form a partial vacuum within the barrel. The advancement of the needle is continued, thereby gathering a sample of tissue from the desired organ, with the tissue sample moving into the needle shank until contact is made with the abutment surface.
REFERENCES:
patent: 2373520 (1945-04-01), Wallin
patent: 2739588 (1956-03-01), Yochem
patent: 2844148 (1958-07-01), Raife
patent: 2869541 (1959-01-01), Helmer et al.
patent: 3330268 (1967-07-01), Goldsmith
patent: 3470867 (1969-10-01), Goldsmith
patent: 3577980 (1971-05-01), Cohen
patent: 3727602 (1973-04-01), Hyden et al.
The Lancet, Oct. 10, 1964, p. 794.
Haugen Orrin M.
Howell Kyle L.
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