Tissue modification devices
OwnerRoy LEGUIDLEGUID, Michael P. WALLACE +1inventors
InventorsRoy LEGUIDLEGUID, Michael P. WALLACE, Nestor C. CANTORNA
Life of this patent
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Abstract
Tissue modification devices, and particularly very low-profile, yet strong and manipulatable Rongeur devices. In general, these devices are low-profile, with a flat and thin distal end that may be much thinner than it is wide. The distal end includes a cutting window within which one or more blades move to cut tissue. The distal end region and the curved region forming an angle with an elongate rigid body may be sufficiently stiff and rigid so that the distal end can be pushed (or pulled) against a tissue to be cut with sufficient force so that even hard tissue such as bone may be held within the window and cut by the blade(s).
Claims20
A device for modifying tissue, the device comprising:
- a rigid elongate body having a thin distal portion that is bent relative to the elongate body, wherein the distal portion comprises a cutting window and the distal portion is slightly wider than the elongate body;
- a bent region between the elongate body and the distal portion, wherein the bent region is rigid;
- a movable blade disposed along one side of the cutting window and configured to extend across the cutting window to cut tissue;
- and
- a handle at the proximal end of the body, wherein the handle includes an actuator configured to move the movable blade towards a second blade;
- wherein the distal portion has a height, a length and a width, and wherein the height is less than the width, further wherein the height is not more than 10 mm at any point along its length, and the width is not more than 20 mm at any point along its length.
A device for modifying tissue, the device comprising:
- a rigid elongate body having a thin distal portion that is bent at a fixed angle between about 180 and 90 degrees relative to the elongate body, wherein the distal portion comprises a cutting window, and wherein the distal portion is slightly wider than the elongate body;
- a rigid bent region forming the fixed angle between the elongate body and the distal portion;
- a movable blade disposed along one side of the cutting window and configured to extend across the cutting window to cut tissue;
- and
- a handle at the proximal end of the body, wherein the handle includes an actuator configured to move the movable blade towards a second blade;
- wherein the distal portion has a height, a length and a width, and wherein the height is less than the width, further wherein the height is not more than 5 mm at any point along its length, and the width is not more than 10 mm at any point along its length.
A device for modifying tissue, the device comprising:
- a rigid elongate body having a thin distal portion that is bent at a fixed angle between about 180 and 90 degrees relative to the elongate body, wherein the distal portion comprises a cutting window, and wherein the distal portion is slightly wider than the elongate body;
- a rigid, invaginated, bent region forming the fixed angle between the elongate body and the distal portion;
- a movable blade disposed along one side of the cutting window and configured to extend across the cutting window to cut tissue;
- and
- a handle at the proximal end of the body, wherein the handle includes an actuator configured to move the movable blade towards a second blade;
- wherein the distal portion has a height, a length and a width, and wherein the height is less than the width, further wherein the height is not more than 5 mm at any point along its length, and the width is not more than 10 mm at any point along its length.
Dependencies are inferred from the claim text.