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.
Patent No.:
Date of Patent:
Nov. 02, 2021
Filed:
Sep. 10, 2019
Lento Medical Inc., Houston, TX (US);
Ilwhan Park, Walnut Creek, CA (US);
Lento Medical, Inc, Houston, TX (US);
Abstract
A cutting jig and corresponding method of manufacture is provided. The jig comprises a unitary piece combining a bone cutting guide defining a cut plane and a set of fins projecting from a jig substrate and terminating in curvilinear bone-jig contact surfaces for abutting articular surface features. The curvilinear surfaces are characterized by custom patient-specific parameters derived from measurements obtained from selected image slices of a patient's joint region such that the curvilinear surfaces establish one and only one mechanical self-locking position for the unitary piece. One obtains a series of image slices of a patient's joint region, then selects a set of slices that show specified articular surface features in the joint region. Patient-specific parameters obtained from measurements of the slices specify curvilinear bone-jig contact surfaces and a cut plane. The contact surfaces at the ends of the fins may be extruded as stepped set of line segments that follow curves along the articular surface features.