Chorion biopsy instrument

Details Chorion biopsy instrument Chorion biopsy instrument

1986-10-31

1987-07-21

Howell, Kyle L.

Surgery

Truss

Pad

128305, 128754, A61B 1000

Patent

active

046811230

ABSTRACT:
A chorion biopsy instrument for sampling chorion tissue including a housing and first and second telescoping tubes with the first tube being closed at one end thereof and having an opening on one side near the closed end. The second outer tube has a cutting edge which slides along the exterior of the first tube. A mechanism is provided for moving the second tube with respect to the first tube between a first position wherein the second tube covers the opening in the first tube and a second position wherein said second tube does not cover the opening in the first tube. A syringe is fluidly connected to a first passageway through the first tube and a bottle of culture medium is fluidly connected to a second passageway leading through the housing, between the two tubes, with the opening in the first tube connecting the first passageway to the second passageway when the tubes are in the first relative position thereof.

REFERENCES:
patent: 1867624 (1932-07-01), Hoffman
patent: 3401684 (1968-09-01), Dremann
patent: 3598088 (1971-07-01), Southamp
patent: 3606878 (1971-09-01), Kellogg, Jr.
patent: 3844272 (1974-10-01), Banko
patent: 3990453 (1976-11-01), Douugs et al.
patent: 4445509 (1984-05-01), Auth
patent: 4600014 (1986-07-01), Beraka

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