초록 ▼

A rotatable surgical tool is disclosed for cutting and removing tissue from a patient. The tool includes an outer tubular member having a proximal end portion and a distal end portion. An inner tubular member has a distal end portion and a proximal end portion with the distal end portion of the inne

A rotatable surgical tool is disclosed for cutting and removing tissue from a patient. The tool includes an outer tubular member having a proximal end portion and a distal end portion. An inner tubular member has a distal end portion and a proximal end portion with the distal end portion of the inner tubular member having a cutter. The inner tubular member is rotatably disposed within the outer tubular member enabling the cutter to shear tissue disposed in the vicinity of the distal end portions upon rotation of the inner tubular member relative to the outer tubular member. A flexible transmission interconnects the distal end portion and the proximal end portion of the inner tubular member for transmitting rotational movement from a rotary power source to the cutter. The outer tubular member is constructed of a deformable material enabling the outer tubular member to be selectively bent, during fabrication of the tool, in a region adjacent the flexible transmission for facilitating the positioning of the cutter proximate the tissue of the patient. A vacuum source may be provided to be in fluid communication with the proximal end of the inner tubular member for removing tissue severed by the cutter.

대표청구항 ▼

A surgical tool for cutting tissue from a patient upon rotation by a rotary power source, comprising: an outer tubular member having a proximal end portion and a distal end portion; an inner tubular member having a proximal end portion and a distal end portion; said distal end portion of said inner

A surgical tool for cutting tissue from a patient upon rotation by a rotary power source, comprising: an outer tubular member having a proximal end portion and a distal end portion; an inner tubular member having a proximal end portion and a distal end portion; said distal end portion of said inner tubular member having a cutting means; said inner tubular member being rotatably disposed within said outer tubular member; means connecting said proximal end portion of said inner tubular member to a source of rotary power enabling said cutting means to cut the tissue of a patient upon rotation of said inner tubular member relative to said outer tubular member; a flexible transmission means interposed between said distal end portion and said proximal end portion of said inner tubular member for transmitting rotational movement from the rotary power source to said cutting means; said flexible transmission means including a plurality of coaxial spirally wound layers being wound in alternating opposite direction relative to each other to enable rotation of said cutting means in either a clockwise or counter-clockwise direction; and said outer tubular member being of a deformable material enabling said outer tubular member to be selectively bent in a region adjacent said flexible transmission for facilitating said positioning of said cutting means proximate the tissue of the patient.