Patent ID: 8852120

Claim:
A device for repairing an injured myocardium by tissue implantation and cellular regrowth, the device comprising: a flexible catheter body; a rigid sleeve attached to a distal end of the catheter body, the sleeve having a distal cutting edge extending around a distal opening for insertion into myocardial tissue to remove a tissue sample and retain the tissue sample in a tubular cavity of the sleeve, the tubular cavity having an internal diameter in a range between about 100 micrometers and about 1000 micrometers; and a moveable element within the tubular cavity of the sleeve, the moveable element being displaced proximally by the tissue sample retained within the tubular cavity, the moveable element being attached to a cable extending through the catheter body, the cable being actuated for axial translation within the catheter body to move the moveable element in a distal direction relative to the sleeve such that the tissue sample can be displaced from the sleeve through the distal opening with the moveable element.