Powered surgical tool
First Claim
Patent Images
1. A powered miniature tool comprising:
- work wheel means having an axis of rotation;
a housing having a proximal end and a distal end;
means in said housing for supporting said work wheel means for rotation about said axis;
a reciprocally movable element in said housing for imparting incremental angular undirectional rotational movement to said work wheel means; and
motor means coupled to said reciprocally movable element adjacent said proximal end of said housing.
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Accused Products
Abstract
A powered surgical tool includes a battery-operated motor that has an eccentrically mounted drive wheel for engaging a longitudinally movable drive wire that operates to incrementally rotate a ratchet wheel. A work wheel in the form of a cutting blade or a grinding wheel is mounted for rotational movement with the ratchet wheel at the distal end of the surgical tool. In another version, the cutting blade has a periphery of cutting teeth, which are driven directly by the longitudinally movable drive wire. A grinding wheel version discloses two grinding wheels that are incrementally driven in opposite angular directions by a pair of longitudinally movable drive wires.
44 Citations
20 Claims
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1. A powered miniature tool comprising:
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work wheel means having an axis of rotation; a housing having a proximal end and a distal end; means in said housing for supporting said work wheel means for rotation about said axis; a reciprocally movable element in said housing for imparting incremental angular undirectional rotational movement to said work wheel means; and motor means coupled to said reciprocally movable element adjacent said proximal end of said housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A powered miniature tool comprising:
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a circular work wheel having an axis of rotation; a housing having a proximal end and a distal end; means in said housing for supporting said work wheel for rotation about said axis; a reciprocally movable element in said housing for imparting incremental unidirectional angular rotational movement to said work wheel; motor means coupled to said reciprocally movable element adjacent said proximal end of said housing, said work wheel having an axle corresponding to said axis; and
an eccentrically mounted drive wheel in said motor means that engages a looped portion of said reciprocally movable element. - View Dependent Claims (12)
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13. A method of operating a powered surgical cutter comprising:
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providing a work wheel having a cutting edge; supporting the work wheel for rotational movement at the distal end of a housing; providing a reciprocally movable element coupled to a motor means located in the proximal end of the housing and driving the work wheel in an incremental unidirectional angular rotational manner from the reciprocally movable element. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification