Anti-skid surgical instrument for use in preparing holes in bone tissue
First Claim
1. An anti-skid surgical instrument for preparing a hole in bone tissue of a patient during surgery, the anti-skid surgical instrument having an elongate structure comprising:
- a mill head at the end of the elongate structure for removing bone tissue with reduced skidding of the surgical instrument upon contact of the anti-skid surgical instrument with the bone tissue, wherein the mill head is configured to be a concave face with a spike centered in the concave face and extending therefrom, and one or more side-cutting flutes about the longitudinal axis of the elongate structure for cutting into bone tissue;
a shank configured to be inserted into a drill;
a drilling portion between the mill head and the shank, the drilling portion having one or more drill flutes for evacuating removed bone tissue and a guiding part configured to be held by an end effector of a robotic arm; and
a depth control.
1 Assignment
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Accused Products
Abstract
Described herein is an anti-skid surgical instrument for use in preparing holes in bone tissue. The disclosed surgical instrument provides the ability to prepare a precise hole in bone tissue during surgery (e.g., spinal surgeries and pedicle screw placement, intramedullary screw placement). The disclosed surgical instrument accomplishes precise hole placement regardless of whether the angle between the drill axis and surface of the bone tissue is perpendicular. The disclosed technology includes a flat drilling surface which is perpendicular to the surface of the body of the surgical instrument. This reduces the likelihood of the surgical instrument skidding on the surface of the bone tissue and thereby increases the precision of the hole.
257 Citations
17 Claims
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1. An anti-skid surgical instrument for preparing a hole in bone tissue of a patient during surgery, the anti-skid surgical instrument having an elongate structure comprising:
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a mill head at the end of the elongate structure for removing bone tissue with reduced skidding of the surgical instrument upon contact of the anti-skid surgical instrument with the bone tissue, wherein the mill head is configured to be a concave face with a spike centered in the concave face and extending therefrom, and one or more side-cutting flutes about the longitudinal axis of the elongate structure for cutting into bone tissue; a shank configured to be inserted into a drill; a drilling portion between the mill head and the shank, the drilling portion having one or more drill flutes for evacuating removed bone tissue and a guiding part configured to be held by an end effector of a robotic arm; and a depth control. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification