US 11,806,004 B2
Spring loaded translating lateral retractor blade
Keith Klausman, Irving, TX (US); Joel Gambrell, Irving, TX (US); and Thomas Purcell, Irving, TX (US)
Assigned to ASTURA MEDICAL, Irving, TX (US)
Filed by Astura Medical Inc., Irving, TX (US)
Filed on May 7, 2022, as Appl. No. 17/739,105.
Claims priority of provisional application 63/185,898, filed on May 7, 2021.
Prior Publication US 2022/0354478 A1, Nov. 10, 2022
Int. Cl. A61B 17/02 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/0206 (2013.01) [A61B 2017/00367 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A spring-loaded retractor blade comprising:
a body;
a translating blade slidingly coupled to the body, the translating blade being configured to translate up or down in relation to the body;
a spring coupled to the translating blade configured to provide downward pressure on the translating blade;
wherein the body includes a recess and the translating blade includes a protrusion configured to fit within the recess;
wherein the recess is between upper and lower blade engagement arms;
a helical bolt with a helical groove rotatably coupled to the upper and lower blade engagement arms;
the protrusion having a helical bolt hole and a pin hole configured to slidingly receive the helical bolt; and
a pin inserted in the pin hole having one end configured to engage the helical groove;
wherein when the helical bolt is rotated, the pin slides in an up or down direction within the helical groove to move the protrusion in the up or down direction.