Patent ID: 11877859
Assignee: MICROPORT ORTHOPEDICS HOLDINGS INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A device for preparing a femur of a patient for receipt of a knee implant in flexion relative to a resected tibia plateau based on applying a tension to medial and lateral collateral ligaments of said patient, comprising:
a tibial baseplate configured to rest on said resected tibial plateau,
a tensioner, the tensioner comprising a tensioner body having a tensioner portion, the tensioner portion affixed anteriorly to the tibial baseplate,
an expander arm comprising an elongated body portion, a superior side of the elongated body portion having a spiked tip adjacent a posterior end thereof, the spiked tip positioned to selectively interact with an intracondylar notch of the knee under tension, the expander arm operatively connected to the tensioner body via the tensioner portion, the tensioner portion configured for use in selectively raising and lowering the expander arm relative to the tibial baseplate to thereby apply the tension to said medial and lateral collateral ligaments of said patient in flexion, and
a resection arm assembly, the resection arm assembly configured for selective attachment to the expander arm, the resection arm assembly including a main body portion, the main body portion supporting a medial paddle,
wherein the spiked tip, when interacting with the intercondylar notch and the medial paddle, is sized and configured to maintain a space between a proximal face of the main body portion of the resection arm assembly and a resected distal portion of the medial condyle, and
further comprising a flexion spacer, the flexion spacer configured to attach to the leading face of the main body portion and sized to fill the space.