Reciprocating apparatus and methods for removal of intervertebral disc tissues
First Claim
1. A reciprocating cutting apparatus for removing tissue from an intervertebral disc, comprising:
- a guide tube defining a lumen extending through the guide tube from a proximal opening at a proximal end of the guide tube to a distal opening at a distal end of the guide tube, the lumen including a bend at the distal end of the guide tube, the lumen of the guide tube extending linearly over a linear section extending between the bend and the distal opening;
a drive shaft received within the lumen of the guide tube, the drive shaft having a proximal end and a distal end; and
a cutting cap defining a trailing cutting edge and an atraumatic crown, the drive shaft operably connected to the cutting cap to confer a reciprocating motion to the cutting cap, the cutting cap movable between an extended position and a retracted position relative to the distal opening of the guide tube.
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Accused Products
Abstract
Reciprocating cutting apparatus and methods for removing tissue from an intervertebral disc are disclosed. The reciprocating cutting apparatus can include a guide tube, a cutting cap and a drive shaft. Other reciprocating cutting apparatus can include a guide tube, an outer guide tube, a cutting cap and a drive shaft. The cutting cap reciprocates relative to the distal opening in the guide tube to cut and/or abrade tissues within an intervertebral disc. A cutting member may be provided to assist in the cutting and/or abrading of the tissues within the intervertebral disc. The reciprocating cutting apparatus may be generally configured to extend and withdraw a guide tube from and into the distal opening in the outer guide tube.
180 Citations
23 Claims
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1. A reciprocating cutting apparatus for removing tissue from an intervertebral disc, comprising:
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a guide tube defining a lumen extending through the guide tube from a proximal opening at a proximal end of the guide tube to a distal opening at a distal end of the guide tube, the lumen including a bend at the distal end of the guide tube, the lumen of the guide tube extending linearly over a linear section extending between the bend and the distal opening;
a drive shaft received within the lumen of the guide tube, the drive shaft having a proximal end and a distal end; and
a cutting cap defining a trailing cutting edge and an atraumatic crown, the drive shaft operably connected to the cutting cap to confer a reciprocating motion to the cutting cap, the cutting cap movable between an extended position and a retracted position relative to the distal opening of the guide tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A reciprocating cutting apparatus for removing tissue from an intervertebral disc, comprising:
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a guide tube defining a lumen extending through the guide tube from a proximal opening at a proximal end of the guide tube to a distal opening at a distal end of the guide tube, the lumen including a bend at the distal end of the guide tube, the lumen of the guide tube extending linearly over a linear section extending between the bend and the distal opening;
a distal stop secured to a distal end of the guide tube;
a drive shaft received within the lumen of the guide tube, the drive shaft having a proximal end and a distal end; and
a cutting cap defining a trailing cutting edge and a leading cutting edge, the drive shaft operably connected to the cutting cap to confer a reciprocating motion to the cutting cap, the cutting cap movable between an extended position and a retracted position relative to the distal opening of the guide tube. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification