The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 18, 2025

Filed:

Jul. 28, 2021
Applicants:

Keio University, Tokyo, JP;

Nakashima Healthforce Co., Ltd., Okayama, JP;

Inventors:

Yasuo Niki, Shinjuku-ku, JP;

Keitaro Yamamoto, Okayama, JP;

Takaaki Yabuki, Okayama, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 17/15 (2006.01); A61B 17/17 (2006.01); A61F 2/46 (2006.01); A61B 90/00 (2016.01);
U.S. Cl.
CPC ...
A61B 17/157 (2013.01); A61B 17/1764 (2013.01); A61F 2/461 (2013.01); A61B 2090/061 (2016.02); A61B 2090/0807 (2016.02);
Abstract

A tibial resection assisting device includes: a femoral paddle including a first contact surface brought into contact with a resection surface of a distal portion of a femur; and a tibial paddle including a second contact surface brought into contact with a proximal portion of a tibia that is unresected. The femoral paddle is mounted to a base disposed at an anterior side of a knee joint. A movable body mounted to the base is movable in an orthogonal direction to the first contact surface. The tibial paddle is mounted to the movable body and is swingable about a swing shaft that extends in an anterior-posterior direction of the knee joint, the anterior-posterior direction being parallel to the first contact surface. Further, a reference guide mounted to the base is movable in the orthogonal direction and is intended for positioning a tibial cutting guide.


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