US 12,426,939 B2
Micro-invasive surgical device and methods of use
Darryl E. Barnes, Eagan, MN (US); and Jay Smith, Byron, MN (US)
Assigned to Mayo Foundation for Medical Education and Research, Rochester, MN (US)
Appl. No. 17/595,813
Filed by Mayo Foundation for Medical Education and Research, Rochester, MN (US)
PCT Filed May 29, 2020, PCT No. PCT/US2020/035094
§ 371(c)(1), (2) Date Nov. 24, 2021,
PCT Pub. No. WO2020/243412, PCT Pub. Date Dec. 3, 2020.
Application 17/595,813 is a continuation of application No. PCT/US2020/012682, filed on Jan. 8, 2020.
Claims priority of provisional application 62/853,930, filed on May 29, 2019.
Prior Publication US 2022/0233232 A1, Jul. 28, 2022
Int. Cl. A61B 18/14 (2006.01); A61B 18/08 (2006.01); A61B 18/20 (2006.01); A61B 18/00 (2006.01); A61B 90/00 (2016.01)
CPC A61B 18/14 (2013.01) [A61B 18/082 (2013.01); A61B 18/20 (2013.01); A61B 2018/00202 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/1415 (2013.01); A61B 2090/037 (2016.02)] 5 Claims
OG exemplary drawing
 
1. A tissue cutting device for performing a trigger finger release procedure, the tissue cutting device comprising:
a flat handle, comprising;
a first handle portion; and
a second handle portion attached to the first handle portion via multiple break points;
a first blade extending from the first handle portion and comprising:
a first arm extending from a first proximal end at the first handle portion to a first distal end;
a second arm extending parallel to the first arm from a second distal end to a second proximal end in a direction of the second handle portion without contacting the second handle portion; and
a distal tip connecting the first distal end of the first arm with the second distal end of the second arm and including a forward-facing cutting edge; and
a second blade extending from the second handle portion parallel to and between the first arm and the second arm and including a cutting edge with a hook shape that faces the handle,
wherein the first arm, the second arm, and the distal tip of the first blade surround at least a majority of the second blade, and
wherein the second handle portion is rotatable relative to the first handle portion to break the second handle portion from the first handle portion at the multiple break points and rotate the second blade relative to the first blade, such that the second blade rotates from a first plane to a second plane and into a position for cutting a target tissue with the cutting edge.