Co-axial tube surgical infusion/suction cutter tip

Details Co-axial tube surgical infusion/suction cutter tip Co-axial tube surgical infusion/suction cutter tip

1981-07-24

1985-05-21

Thaler, Michael H.

Surgery

Truss

Pad

604 22, A61B 1732

Patent

active

045179778

ABSTRACT:
Surgical instrument for accurately cutting and removing fibrous tissue comprising a first tube (11) having at one end an end wall (12) disposed in a plane substantially normal to the longitudinal axis of the first tube (11), which end wall contains an aperture (13); a second tube (14) coaxial with the first tube (11) and having at one end wall (15) disposed in a plane substantially normal to the longitudinal axis of the second tube (14) which end wall (15) contains an aperture (16) and lies in closed juxtaposition with the end wall (12) of the first tube (11); a mechanism (17) to enable the tubes (11 and 14) to be rotated relative to one another such that the apertures (13 and 16) are moved into and out of register with one another; ducts (19 and 20) to direct a stream of an irrigating liquid to the one end of the tubes (11 and 14); and ducts (21, 37, 36 and 35) to connect the interior of the second tube (14) to a source of suction.

REFERENCES:
patent: 3889657 (1975-06-01), Baumgarten
patent: 3945375 (1976-03-01), Banko
patent: 4274414 (1981-06-01), Johnson et al.

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