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:
Jun. 21, 2016

Filed:

Oct. 21, 2011
Applicants:

Ryutaku Kaneyama, Kisarazu, JP;

Kouichi Kuramoto, Okayama, JP;

Keitarou Yamamoto, Okayama, JP;

Daisuke Maruyama, Okayama, JP;

Inventors:

Ryutaku Kaneyama, Kisarazu, JP;

Kouichi Kuramoto, Okayama, JP;

Keitarou Yamamoto, Okayama, JP;

Daisuke Maruyama, Okayama, JP;

Assignees:

NAKASHIMA MEDICAL CO., LTD., Okayama-Ken, unknown;

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 17/16 (2006.01); A61B 17/15 (2006.01); A61F 2/38 (2006.01); A61F 2/46 (2006.01); A61F 2/30 (2006.01); A61B 17/17 (2006.01);
U.S. Cl.
CPC ...
A61B 17/1675 (2013.01); A61B 17/155 (2013.01); A61F 2/3836 (2013.01); A61F 2/4684 (2013.01); A61B 17/154 (2013.01); A61B 17/1764 (2013.01); A61F 2/3859 (2013.01); A61F 2/4657 (2013.01); A61F 2002/30604 (2013.01); A61F 2002/30607 (2013.01); A61F 2002/3895 (2013.01); A61F 2002/4661 (2013.01);
Abstract

A surgical instrument including a pre-cut trial mounted on a pre-cut line which is cut shallower than a genuine-cut line. The pre-cut trial is modeled after the genuine implant which is mounted on resected surfaces formed by performing genuine-cutting and comprised of an end resected surface, posterior and anterior resected surfaces, and posterior and anterior chamfer-resected surfaces on the distal end of a femur, and the pre-cut trial is mounted on the pre-cut line, thus observing the extended and flexed positions of the femur and the state of flexion thereof so as to make judgment if the genuine implant is appropriate.


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