US 12,011,152 B2
Tricuspid retractor blade assembly
John J Sinisi, Warminster, PA (US); Jesse Sinisi, Warminster, PA (US); Stephen T Epstein, Newtown, PA (US); Mario Castillo-Sang, Cincinnati, OH (US); and Rochus K Voeller, Eagan, MN (US)
Assigned to USB Medical Limited, Hatboro, PA (US)
Filed by USB Medical Limited, Hatboro, PA (US)
Filed on Nov. 17, 2021, as Appl. No. 17/529,240.
Prior Publication US 2023/0149006 A1, May 18, 2023
Int. Cl. A61B 17/02 (2006.01); A61B 17/00 (2006.01); A61B 17/12 (2006.01)
CPC A61B 17/0218 (2013.01) [A61B 17/00234 (2013.01); A61B 2017/00243 (2013.01); A61B 2017/0237 (2013.01); A61B 17/12013 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A retractor assembly, comprising:
a central plate having a top edge, a bottom edge, a first side edge and a second side edge;
a joint recess extending into said central plate from said bottom edge;
a base plate that attaches to said bottom edge of said central plate spanning said joint recess along said bottom edge;
a hinge knuckle disposed in the joint recess, said hinge knuckle being retained in said joint recess by said base plate, wherein said hinge knuckle is free to rotate in said joint recess about a rotational axis that is parallel to said first side edge of said central plate, parallel to said second side edge of said central plate, and perpendicular to said bottom edge of said central plate;
a first rotatable arm attached to said first side edge of said central plate with a first hinge joint, wherein said first rotatable arm can be rotated about said first hinge joint through a first range of motion relative to said central plate;
a handle; and
an elongated shaft that extends from said handle to said hinge knuckle, wherein said elongated shaft connects to said hinge knuckle.