US 12,376,867 B2
Unit for the reaming of the surface of joint cartilage and of periarticular bone of an acetabulum and femoral head
Piotr Rogala, Poznan (PL); Jan Rogala, Poznan (PL); Stanislaw Rogala, Poznan (PL); and Pawel Zawadzki, Witobel/Steszew (PL)
Appl. No. 17/779,050
Filed by INDYWIDUALNA SPECJALISTYCZNA PRAKTYKA LEKARSKA W MIEJSCU WEZWANIA PIOTR ROGALA, Poznan (PL)
PCT Filed Jan. 29, 2020, PCT No. PCT/PL2020/000006
§ 371(c)(1), (2) Date May 23, 2022,
PCT Pub. No. WO2021/112698, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. P.432041 (PL), filed on Dec. 2, 2019; and application No. P.432044 (PL), filed on Dec. 2, 2019.
Prior Publication US 2023/0000499 A1, Jan. 5, 2023
Int. Cl. A61B 17/16 (2006.01)
CPC A61B 17/1666 (2013.01) [A61B 17/1617 (2013.01); A61B 17/1659 (2013.01); A61B 17/1668 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An apparatus for use with a drive mechanism for reaming a surface of an acetabulum or a femoral head of a hip joint, the apparatus comprising:
an outer body adapted to be connected by a joint to said drive mechanism so as to be rotatably driven by the drive mechanism, said outer body having a channel;
at least one burr comprising:
a slanting end;
an arc shape;
a cutting blade at a first end thereof; and
a ball-shaped pivot at an opposite end thereof;
an inner body having at least one guide, the ball-shaped pivot received in the at least one guide of said inner body;
a shank having said inner body affixed at an end thereof; and
a shaft connected by a threaded connection to said shank, the threaded connection having a lock member thereon, said outer body having a threaded joint secured to said shaft, said outer body having a chamber formed at an end thereof, the chamber adapted to receive a head of machined bone therein.