Surgical system with a blade
First Claim
Patent Images
1. A blade assembly for removing tissue, said blade assembly comprises:
- an elongated blade body having a first surface and an opposing second surface, the blade body having elongate proximal, medial and distal portions;
at least the medial portion of the blade body being substantially flat and having a width axis transverse to a length of the blade body, the medial portion of the blade body being flexible about the width axis;
an elongate blade guide comprising a first bearing surface and a second bearing surface, the first bearing surface being adjacent the first blade body surface and the second bearing surface being adjacent the second blade body surface, the blade body and blade guide configured so that the blade can reciprocate along its length between the first and second bearing surfaces of the blade guide, the blade guide having proximal, medial and distal portions, an arcuate bend being disposed in the blade guide medial portion so that a longitudinal axis of the blade guide proximal portion is angled relative to a longitudinal axis of the blade guide distal portion;
the blade body flexing in the blade body medial portion so as to conform to the bend in the blade guide medial portion; and
the blade body distal portion having a plurality of raised cutting elements extending from said first surface, each of said cutting elements defining a cutting edge for removing tissue, said cutting edge being elongate and substantially parallel to at least one of said first surface and second surface.
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Accused Products
Abstract
A reciprocating surgical file system for precisely removing bone and/or other tissue is described. The system allows a user to maneuver the system and navigate into hard-to-access sites under a direct vision mechanism. A transmission mechanism converts rotary motion from a motor into reciprocating motion and provides it to the surgical file for precision removal of bone or other tissue. A pulsatile pump mechanism is operatively coupled with the transmission mechanism and provides irrigating fluid to the surgical site.
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Citations
24 Claims
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1. A blade assembly for removing tissue, said blade assembly comprises:
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an elongated blade body having a first surface and an opposing second surface, the blade body having elongate proximal, medial and distal portions; at least the medial portion of the blade body being substantially flat and having a width axis transverse to a length of the blade body, the medial portion of the blade body being flexible about the width axis; an elongate blade guide comprising a first bearing surface and a second bearing surface, the first bearing surface being adjacent the first blade body surface and the second bearing surface being adjacent the second blade body surface, the blade body and blade guide configured so that the blade can reciprocate along its length between the first and second bearing surfaces of the blade guide, the blade guide having proximal, medial and distal portions, an arcuate bend being disposed in the blade guide medial portion so that a longitudinal axis of the blade guide proximal portion is angled relative to a longitudinal axis of the blade guide distal portion; the blade body flexing in the blade body medial portion so as to conform to the bend in the blade guide medial portion; and the blade body distal portion having a plurality of raised cutting elements extending from said first surface, each of said cutting elements defining a cutting edge for removing tissue, said cutting edge being elongate and substantially parallel to at least one of said first surface and second surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A blade for removing tissue, said blade comprising:
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a blade body having a first face and a second face, said first face and said second face extending between a first edge and a second edge, the blade body having proximal, medial and distal portions; at least the medial portion of the blade body being substantially flat and having a width axis transverse to a length of the blade body, the medial portion of the blade body being flexible about the width axis; an elongate blade guide comprising a first bearing surface and a second bearing surface, the first bearing surface being adjacent the first blade body surface and the second bearing surface being adjacent the second blade body surface, the blade body and blade guide configured so that the blade can reciprocate along its length between the first and second bearing surfaces of the blade guide, the blade guide having proximal, medial and distal portions, an arcuate bend being disposed in the blade guide medial portion so that a longitudinal axis of the blade guide proximal portion is angled relative to a longitudinal axis of the blade guide distal portion; the blade body flexing in the blade body medial portion so as to conform to the bend in the blade guide medial portion; and the blade body distal portion having a plurality of raised elements for removing tissue, said raised elements extending from said first face, each of said raised elements having a cutting edge that is substantially concentric to an arcuate transverse axis of said blade body. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification