Method for using retractable stylet and cannula combination to form an opening in bone
First Claim
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1. A method for forming an opening in bone comprising the steps of:
- providing a surgical instrument comprising;
an outer sleeve having a distal end, a proximal end, a passage therethrough, and a mid-longitudinal axis;
a middle sleeve having a distal end, a proximal end, a passage therethrough, and a mid-longitudinal axis, the middle sleeve being sized and configured to be inserted into the passage of the outer sleeve;
a trocar having a distal end, a proximal end, and a mid-longitudinal axis, the trocar being sized and configured to be inserted into the passage of the middle sleeve;
placing the middle sleeve into the outer sleeve with at least a portion of the distal end of the middle sleeve extending beyond the distal end of the outer sleeve;
placing the trocar into the middle sleeve with at least a portion of the distal end of the trocar extending beyond the distal end of the middle sleeve and the outer sleeve;
inserting the surgical instrument with the distal end of the trocar into the bone;
advancing into the bone the surgical instrument with the trocar, the middle sleeve, and the outer sleeve in fixed relationship to form an opening into the bone;
removing the trocar from the middle sleeve with the middle sleeve and outer sleeve remaining in the bone;
further advancing into the bone the surgical instrument with the middle sleeve and outer sleeve in fixed relationship to enlarge the opening being formed into the bone;
removing the middle sleeve from the outer sleeve with the outer sleeve remaining in the bone; and
further advancing into the bone the surgical instrument to enlarge the opening being formed into the bone.
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Abstract
In one preferred aspect, a method is provided for forming an opening in bone for the sequential dilation of tissue.
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Citations
20 Claims
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1. A method for forming an opening in bone comprising the steps of:
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providing a surgical instrument comprising;
an outer sleeve having a distal end, a proximal end, a passage therethrough, and a mid-longitudinal axis;
a middle sleeve having a distal end, a proximal end, a passage therethrough, and a mid-longitudinal axis, the middle sleeve being sized and configured to be inserted into the passage of the outer sleeve;
a trocar having a distal end, a proximal end, and a mid-longitudinal axis, the trocar being sized and configured to be inserted into the passage of the middle sleeve;
placing the middle sleeve into the outer sleeve with at least a portion of the distal end of the middle sleeve extending beyond the distal end of the outer sleeve;
placing the trocar into the middle sleeve with at least a portion of the distal end of the trocar extending beyond the distal end of the middle sleeve and the outer sleeve;
inserting the surgical instrument with the distal end of the trocar into the bone;
advancing into the bone the surgical instrument with the trocar, the middle sleeve, and the outer sleeve in fixed relationship to form an opening into the bone;
removing the trocar from the middle sleeve with the middle sleeve and outer sleeve remaining in the bone;
further advancing into the bone the surgical instrument with the middle sleeve and outer sleeve in fixed relationship to enlarge the opening being formed into the bone;
removing the middle sleeve from the outer sleeve with the outer sleeve remaining in the bone; and
further advancing into the bone the surgical instrument to enlarge the opening being formed into the bone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification