公开(公告)号：US20230149000A1

公开(公告)日：2023-05-18

申请号：US17995865

申请日：2021-04-09

Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Inventor： Thomas E. MILNER ,  Jason B. KING ,  Nitesh KATTA ,  James W. TUNNELL

IPC: A61B10/02 ,  A61B18/22

CPC classification number: A61B10/02 ,  A61B18/22 ,  A61B2018/2266 ,  A61B2018/2205 ,  A61B2018/00761

Abstract: Apparatus and methods for tissue excision. In certain aspects, the apparatus and methods include an annular converging laser beam. The annular converging laser beam can be directed to a surface of a tissue and displace a portion of the tissue in a single or multiple laser pulses. In particular aspects, the dosimetry of the laser beam (e.g. the beam shape, pulse energy and pulse duration) can be controlled to eject the portion of the tissue in a manner to reduce damage to the displaced tissue and the surrounding tissue.