PATENT CLAIM ANALYSIS

Application Number: 16040037
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-12
Patent Classification: ["623", "020310"]

Abstract:
A bicondylar knee implants with improved fixation means for resurfacing only the weight-bearing surface of the femoral medial and lateral condyles, while preserving the cruciate ligaments and avoids displacing the patella. The inventive device includes metallic convex articular surfaces for resurfacing the medial and lateral femoral condyles, and concave multifacial non-articular surfaces to be affixed to the resected distal surfaces of the femur. The prosthesis provides claws situated at the anterior and posterior ends of the medial and lateral metallic condyles, which will firmly attach the implant against the resected femoral condyle. The prosthesis is designed to be implanted through a direct lateral approach and does not resurface the femoropatellar joint. Furthermore, a minirobot or electromechanical actuator is used to perform the femoral and tibial bone cuts using electromagnetic bone chipper.

Claim (Index 24):
An implantable bicondylar femoro-tibial prosthetic device adapted to be implanted to a retropatellar region of a knee joint and for forming a joint between a femur and a tibia, the prosthetic device comprising:\n a bicondylar femoral component having a convexly curved outer articular surface having a medial condyle, a lateral condyle, and an intercondylar anterior connection therebetween, and a concave non articular flat inner having extending outwardly therefrom a first mini post extending from the medial condyle and a second mini post extending from the lateral condyle, wherein, when the femoral component is implanted on the weight bearing portion of the femur, the outer surface of the convexly curved articular surface is sized to substantially cover only the weight bearing portion and to substantially cover no portion of the patello-femoral joint of the knee, and, a tibial component having a tibial platform which has a bottom surface which includes anterior and posterior retaining claws, a top surface which includes at least two spaced apart restraining lips one of which is coincident with a front edge of the top surface and which extends above the top surface, the other of which is coincident with a back edge of the top surface and which extends above the top surface, and wherein both of the side edges of the top surface which extend between the restraining lips are coincident with the top surface, and a polyethylene insert having a top surface, two cupules depressions extending inwardly from the top surface, and a bottom surface which includes two correspondingly configured transverse retaining ridges configured to be fitted between the at least two spaced apart restraining lips, and two end edges extending between the two correspondingly configured transverse retaining ridges; wherein during the implantation of the femoral component onto a resected portion of the femur, each of the mini posts are embeddable within a resected surface of the femur; and wherein only the weight bearing portion of the femur is resurfaced by the resection, which weight bearing portion is substantially defined by the articular surface of the femur which contacts the tibia of the knee joint during flexion from full extension through flexion.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 95.0
- Lexical Diversity: 1.62791
- Patent Class: 623.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16040147', '11715692', '14881821', '10159147', '14753857']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8186772064182347
- 35 USC 102 Novelty (BERT): 0.5757871190865852
- Combined Prediction Score: 0.7943881976850697
- Mean Citation Score: 413.11251
- Max Citation Score: 538.6367
- Similarity Product: 454.3416393672048

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test