PATENT CLAIM ANALYSIS

Application Number: 15742208
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-05
Patent Classification: ["623", "022120"]

Abstract:
A surgical tool for extracting an acetabular ball from an acetabular cup in an implanted hip prosthesis wherein the acetabular ball is affixed by means of a Morse taper to a stem extending from bottom of the concave portion of the acetabular cup. The surgical tool enables a surgeon to remove the ball without pulling on the acetabular cup and without disrupting any bone in-growth because the tool maintains pressure on the cup while exerting an opposing pressure pulling on the ball.

Claim (Index 1):
A surgical tool adapted for removing an acetabular ball from an acetabular cup wherein the acetabular ball is affixed by means of a Morse taper to a stem extending from a concave surface of the acetabular cup comprising:\n a jaw shaft having two or more than two jaws disposed at a distal end thereof, each jaw being pivotable about an axis perpendicular to a central axis of the jaw shaft and the jaw shaft having a threaded proximal end; an outer shaft into which the jaw shaft is concentrically disposed, the outer shaft having a bell shaped element affixed to a distal end thereof, the bell shaped element being open at its distal end and being internally sized to cause the jaws to close when the jaws are drawn into the bell shaped element by proximal movement of the jaw shaft toward a proximal end of the tool and the bell shaped element having a circumferential bell edge at its distal end sized to engage a circumferential cup edge of the acetabular cup; and a jaw shaft nut threaded onto the proximal end of the jaw shaft wherein tightening of the nut exerts pressure in a distal direction on the proximal end of the outer shaft causing the jaw shaft to move proximally relative to the outer shaft and thereby causing the jaws to exert a pulling force on the acetabular ball while causing the circumferential bell edge of the bell shaped element to exert an opposing force on the circumferential cup edge of the acetabular cup until sufficient tightening of the jaw shaft nut causes the acetabular ball to be released from the stem.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 1.71429
- Patent Class: 623.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15742292', '15742238', '14154330', '14236477', '11171908']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7572329780941028
- 35 USC 102 Novelty (BERT): 0.4604940446879022
- Combined Prediction Score: 0.7275590847534829
- Mean Citation Score: 180.618788
- Max Citation Score: 207.01402
- Similarity Product: 164.09661890962602

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

Dataset: test