US 12,232,748 B2
Surgical instrument
Shinya Tsusaka, Osaka (JP); Akinori Mori, Otsu (JP); and Masahiko Hashida, Toyonaka (JP)
Assigned to KYOCERA Corporation, Kyoto (JP)
Appl. No. 17/598,194
Filed by KYOCERA Corporation, Kyoto (JP)
PCT Filed Mar. 27, 2020, PCT No. PCT/JP2020/014098
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/203796, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-067856 (JP), filed on Mar. 29, 2019.
Prior Publication US 2022/0183700 A1, Jun. 16, 2022
Int. Cl. A61B 17/15 (2006.01); A61F 2/46 (2006.01)
CPC A61B 17/155 (2013.01) [A61F 2/461 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A surgical instrument for guiding a bone resection instrument for resecting a femur, the surgical instrument comprising:
a body including
a distal body portion comprising a first abutment surface configured to abut against a distal end resection surface of a femur distal portion, the distal body portion having a substantially plate shape; and
a posterior condyle abutment portion comprising a second abutment surface configured to abut against a posterior condyle resection surface of a posterior condyle portion of the femur and connected to the distal body portion such that the posterior condyle abutment portion extends from a lower end of the distal body portion along the posterior condyle resection surface; and
a spacer capable of displacing a holding position of the first abutment surface with respect to the distal end resection surface, the spacer being positioned between the distal end resection surface and the distal body portion, wherein
the body comprises
a first cutting slit extending in a direction parallel to the second abutment surface, and
a second cutting slit extending in a direction intersecting the first abutment surface and the second abutment surface,
wherein when the spacer is attached to the distal body portion, the second slit is disposed between the spacer and the first slit and the spacer protrudes anteriorly past the entire body, along the first abutment surface, in a direction away from the posterior condyle abutment portion.