Methods and devices for repairing cartilage defects
AssigneeVericel Corporation
InventorsFelix Ernesto Robles Toth, Robert Bruce Mackinnon, III, Lester H. Fehr
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Abstract
The present disclosures describe devices and methods to repair cartilage defects using arthroscopic surgical methods. The disclosed devices include a cannula assembly including a cannula body, a dam seal sub-assembly disposed proximally from the cannula body, and an obturator inserted coaxially through both the cannula body and the dam seal sub-assembly; an articulated arthroscopic cutting tool; a ring curette; a square curette; a rake curette; a matrix shuttle delivery device for delivering a cell-seeded support matrix including chondrocytes; and an applicator tool.
Claims16
A matrix shuttle delivery device, comprising:
- a shuttle body, wherein the shuttle body comprises a substantially hollow cylinder;
- a delivery tip at a distal end of the shuttle body;
- a plunger disposed longitudinally within the shuttle body and protruding out of a proximal end of the shuttle body;
- at least two deployment wings disposed inside the delivery tip and attached to the plunger;
- and
- at least two holes on a distal surface of the delivery tip;
- wherein pushing the plunger longitudinally into the shuttle body causes the at least two deployment wings to extend externally through the at least two holes of the delivery tip.
A matrix shuttle delivery device, comprising:
- a shuttle body, wherein the shuttle body comprises a substantially a hollow cylinder;
- a delivery tip at the distal end of the shuttle body, comprising:
- a cylindrical portion that is connected to the shuttle body at the proximal end of the delivery tip;
- a tapered portion comprising two sloped sides that come together in a flat surface at the distal end of the delivery tip;
- and
- an outline ledge across the top and distal end of the delivery tip that comprises an elliptical or oblong shape;
- a plunger disposed longitudinally within the shuttle body and protruding out of the proximal end of the shuttle body, the plunger comprising:
- a cylindrical body;
- a flat disc portion at the proximal end of the cylindrical body;
- and
- a recessed portion with protruding pin at the proximal end of the cylindrical body,
- wherein the protruding pin comprises a small cylinder disposed perpendicular to the longitudinal axis of the cylindrical body and a rounded knob with a diameter larger than that of the small cylinder.
Dependencies are inferred from the claim text.