Articular cartilage repair implant delivery device and method of use
First Claim
Patent Images
1. A cannula comprising:
- a tubular body defining a proximal and a distal end;
a bore disposed in said tubular body and extending from said proximal end to said distal end; and
a blade disposed at a tip of said distal end of said tubular body and configured to incise about an articular cartilage area.
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Accused Products
Abstract
A technique for the arthroscopic delivery and fixation of an articular cartilage repair device or implant is provided. The technique includes the use of a cannula tube that functions as both a cartilage cutter and a guide to pass instruments into the body arthroscopically. One such instrument is an end-cutting reamer that both prepares the subchondral bone by re-surfacing it down to a specified depth and also simultaneously drills a pilot hole in the subchondral bone to accept the cartilage repair device. A delivery device is utilized to hold and deliver the cartilage repair device to the delivery site.
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Citations
50 Claims
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1. A cannula comprising:
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a tubular body defining a proximal and a distal end;
a bore disposed in said tubular body and extending from said proximal end to said distal end; and
a blade disposed at a tip of said distal end of said tubular body and configured to incise about an articular cartilage area. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A surgical instrument guide and articular cartilage cutter comprising:
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a tubular body having a longitudinal instrument bore extending from a proximal end of the tubular body to a distal end of said tubular body;
a surgical instrument stop defined at said proximal end of said tubular body and configured to provide an abutment for limiting a length of travel of a surgical instrument; and
an articular cartilage cutting blade defined at said distal end of said tubular body and configured to incise about an articular cartilage area. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A surgical cutting tool comprising:
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a shaft defining a proximal end and a distal end;
an attachment head disposed at said proximal end of said shaft and configured to be received in a rotation device; and
a reamer disposed at said distal end of said shaft and configured to ream about an incised articular cartilage area and to simultaneously prepare a bore in subchondral bone underneath the incised articular cartilage area. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A surgical drill for preparing an area of damaged articular cartilage on subchondral bone of a joint comprising:
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a drill shaft having a proximal end and a distal end;
an attachment tip on said proximal end of said drill shaft and configured to be received in a rotation device; and
a site preparation tip on said distal end of said drill shaft and configured to ream an incised area of the damage damaged articular cartilage and to simultaneously prepare a bore in the subchondral bone underneath the reamed area of the damaged articular cartilage. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32)
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33. An implant delivery device comprising:
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a handle defining a proximal end and a distal end;
a shaft extending from said distal end of said handle and having an application end with a retention slot configured to releasably receive an articular cartilage repair assembly comprising an articular cartilage repair unit releasably retained on an articular cartilage implant retainer; and
a retaining sleeve disposed on said insert and operative in a first mode to allow the articular cartilage implant retainer to be received in said retention slot, and in a second mode that prevents egress of the articular cartilage implant retainer from said retention slot. - View Dependent Claims (34, 35, 36, 37, 38, 39)
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40. An implant delivery device comprising:
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a tubular sleeve having a longitudinal bore and defining a proximal end and a distal end; and
an insert extendable from and retractable into said longitudinal bore of said tubular sleeve, said insert having an application end with a retention slot configured to releasably receive an articular cartilage repair assembly comprising an articular cartilage repair unit releasably retained on an articular cartilage implant retainer. - View Dependent Claims (41, 42)
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43. A set of surgical tools for preparing a damaged articular cartilage site on subchondral bone of a joint and implanting an articular cartilage repair device comprising:
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a cannula comprising;
a tubular body defining a proximal and a distal end;
a bore disposed in said tubular body and extending from said proximal end to said distal end; and
a blade disposed at a tip of said distal end of said tubular body and configured to incise about an articular cartilage area;
a surgical drill comprising;
a drill shaft having a proximal end and a distal end;
an attachment tip on said proximal end of said drill shaft and configured to be received in a rotation device; and
a site preparation tip on said distal end of said drill shaft and configured to ream an incised area of the damaged articular cartilage and to simultaneously prepare a bore in the subchondral bone underneath the reamed area of the damaged articular cartilage; and
an implant delivery device comprising;
a handle defining a proximal end and a distal end;
a shaft extending from said distal end of said handle and having an application end with a retention slot configured to releasably receive an articular cartilage repair assembly comprising an articular cartilage repair unit releasably retained on an articular cartilage implant retainer; and
a retaining sleeve disposed on said insert and operative in a first mode to allow the articular cartilage implant retainer to be received in said retention slot, and in a second mode that prevents egress of the articular cartilage implant retainer from said retention slot. - View Dependent Claims (44, 45, 46, 47, 48)
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49. A method of implanting an articular cartilage repair device comprising the steps of:
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providing access to a joint space having damaged articular cartilage through an arthroscopic portal in the body of a patient;
using an obturator to insert a combination instrument guide and articular cartilage cutter cannula through the arthroscopic portal;
removing remnants of damaged articular cartilage at a damaged articular site through the inserted cannula;
simultaneously preparing the damaged articular cartilage site and underlying bone with a surgical drill having a combination reaming and boring tip through the cannula; and
implanting an articular cartilage repair assembly onto the prepared articular cartilage site through the cannula. - View Dependent Claims (50)
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Specification