US 12,433,632 B2 · Method and system for harvesting biological tissue

Abstract

In one aspect, the dual bevel needle can include a hollow tube having a proximal end, a distal end, a first lateral side, and a second lateral side opposite the first lateral side; a first needle point at the distal end of the hollow tube; a second point at the distal end of the hollow tube; a first bevel on each of the first lateral side and the second lateral side, the first bevel comprising a first bevel angle relative to a longitudinal axis of the tube; and a second bevel on each of the first lateral side and the second lateral side, the second bevel having a second bevel angle relative to the longitudinal axis of the tube, wherein the first and second bevels each form a portion of an ellipse, the ellipse having an inner cutting edge and terminating in the first and second needle points at the distal end of the tube, the second bevel angle being shallower than the first bevel angle, the second bevel being located adjacent the proximal end of the first bevel, and the inner cutting edge converging to a narrow heel.

Claims17

Dependent claims

A device for obtaining biological tissue comprising:

a two-dimensional array of hollow tubes comprising:
a first row of a plurality of hollow tubes;
a second row of a plurality of hollow tubes, adjacent the first row of hollow tubes;
a third row of a plurality of hollow tubes, adjacent the second row of hollow tubes;
wherein each hollow tube comprises at least one point at a distal end of the hollow tube;
wherein an inner diameter of at least one hollow tube of the array of hollow tubes is less than about 1 mm, the distal end of each of the hollow tubes is configured to be inserted into a biological tissue donor site to remove a portion of tissue therefrom when each of the hollow tubes is withdrawn from the donor site,
wherein the device is configured to individually actuate each of the first, second, and third rows to insert the hollow tubes of the respective row into the biological tissue donor site;
further comprising a solenoid configured to actuate the first row of a plurality of hollow tubes, the second row of a plurality of hollow tubes, and the third row of a plurality of hollow tubes;
and
wherein the solenoid is configured to move in a first direction and further comprising an actuator that moves in a second direction perpendicular to a longitudinal axis of a needle of the array of hollow tubes.

7 more elements

A device for harvesting biological tissue, the device comprising:

an array of hollow tubes comprising:
a first group of hollow tubes;
a second group of hollow tubes;
and
a third group of hollow tubes;
wherein the first group of hollow tubes, the second group of hollow tubes, and the third group of hollow tubes are configured to independently actuate;
wherein each hollow tube of the first group of hollow tubes, the second group of hollow tubes, and the third group of hollow tubes is configured to core the biological tissue and has an inner width that is less than about 1 mm;
further comprising a solenoid configured to actuate the first group of hollow tubes, the second group of hollow tubes, and the third group of hollow tubes;
and
wherein the solenoid is configured to move in a first direction and further comprising an actuator that moves in a second direction perpendicular to a longitudinal axis of a needle of the array of hollow tubes.

7 more elements

Dependencies are inferred from the claim text.

Method and system for harvesting biological tissue

Life of this patent

Method and system for harvesting biological tissue

Life of this patent

Abstract

Claims17