US 12,290,253 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 Nov. 7, 2023, as Appl. No. 18/387,834.
Application 18/387,834 is a continuation of application No. 17/739,105, filed on May 7, 2022, granted, now 11,806,004.
Claims priority of provisional application 63/185,898, filed on May 7, 2021.
Prior Publication US 2024/0065681 A1, Feb. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/02 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/0206 (2013.01) [A61B 2017/00367 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A spring-loaded retractor blade comprising:
a body having upper and lower blade engagement arms;
a translating blade having a protrusion slidingly coupled to the body configured to translate up or down between the upper and lower blade engagement arms;
a spring configured to bias the translating blade; and
a helical bolt rotatably coupled to the upper and lower blade engagement arms, the helical bolt having a helical groove slidingly engaged with a pin extending from the protrusion;
wherein when the helical bolt is rotated, the pin slides up or down within the helical groove to translate the translating blade in the up or down direction.