Fiber-optic stylet for needle tip localization

Details Fiber-optic stylet for needle tip localization Fiber-optic stylet for needle tip localization

1984-10-05

1986-01-28

Grieb, William H.

Surgery

Truss

Perineal

A61B 106

Patent

active

045664382

ABSTRACT:
A fiber-optic stylet is provided for use with a surgical or diagnostic type needle. The stylet comprises an elongated flexible or rigid casing which is adapted to be inserted into the body of a human or animal. It also includes at least one transmitting light fiber having a bevelled end which extends to a first end of the casing and that conforms to that of the needle. A second, receiving light fiber has a bevelled end and is also positioned within the casing, also having its bevelled end located at the first end of the needle. The second fiber-optic element is generally cylindrical and has a reflective surface thereon which is located adjacent to the bevelled end of the light fiber. The apparatus is used to precisely determine the area in which a needle is positioned within a body during a diagnostic or surgical procedure.

REFERENCES:
patent: 2699770 (1955-01-01), Fourestier et al.
patent: 2932294 (1960-04-01), Fourestier et al.
patent: 3349762 (1967-10-01), Kapany
patent: 3556085 (1971-01-01), Takahashi
patent: 3961621 (1976-06-01), Northeved
patent: 4269192 (1981-05-01), Matsuo
Johannah Medical Services advertisement for "The Percutaneous Transhephatic Cholangiography (PTC) Chiba `Skinny` Needle", Jun. 1, 1979.
Advertisement for Chiba Needle Trays.
Advertisement for Greene Biopsy Needle Trays.
Applied Optics, Sep. 1964, vol. 3, No. 9, pp. 1031 and 1032, entitled "The Fiber-Optics Hypodermic Microscope", by Charles Long et al.
Nature, Aug. 26, 1961, No. 4791, at pp. 927 and 928.

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