Co-axial tube surgical infusion/suction cutter tip

Abstract

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 an 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); means (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; duct means (19 and 20) to direct a stream of an irrigating liquid to the said one end of the tubes (11 and 14); and duct means (21, 37, 36 and 35) to connect the interior of the second tube (14) to a source of suction.

Inventors

• 👤 R Frost

Bibliographic Details