Patent US6466974B1 successfully refreshed from Google Patents.
EP1574182A1
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System and method for designing a physiometric implant
Assignee: DePuy Products Inc
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Filing: 2005-03-04
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Granted: —
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Expires: 2025-03-04
Abstract
Abstract A system (10) improves the design of artificial implant components for use in joint replacement surgeries. The system includes an anthropometric static image data analyzer (14), an implant model data generator (18), a kinematic model simulator (20), and a dynamic response data analyzer (28). The implant model data generator may also use image data of a joint in motion for modification of the implant model data used in the kinematic simulation. Dynamic response data generated by the kinematic model simulation is analyzed by the dynamic response data analyzer to generate differential data that may be used to further refine the implant model data.
Inventors
- 👤 Luke Aram
- 👤 Dan Auger
- 👤 Adam Hayden
- 👤 Jordan Lee
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 20:16
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/3094; A61F2/30942; A61F2/38; A61B; A61B34/00; A61B34/10; A61B2034/101; A61B2034/102; A61F2/3877; A61F2002/30948; A61F2002/30952
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
116 words
A system for designing joint artificial implant components comprising: an anthropometric data analyzer for identifying a plurality of geometric dimensions
and a range of values for the identified dimensions; an implant model generator for generating at least one set of model data
representative of the identified geometric dimensions and a group of values with the range
of values for the identified dimensions; and a kinematic model simulator for incorporating a set of model data in a kinematic
model of a joint so that the kinematic model simulator generates dynamic response data
corresponding to a set of model data whereby the dynamic response of an artificial implant
corresponding to the set of model data may be evaluated.
Claim 2
Dependent Claim
59 words
The system of claim 1 further comprising: a dynamic response data analyzer to generate differential dimensional data for
modifying the one set of model data in response to the dynamic response data indicating
that implantation of the artificial implant corresponding to the set of model data produces a
conditional parameter in the kinematic model of the kinematic model simulator.
Claim 3
Dependent Claim
66 words
The system of claim 2 wherein: the implant model generator incorporates the differential dimensional data to
generate a second set of model data; the kinematic model simulator incorporates the second set of model data within the
kinematic model to generate dynamic response data; and the dynamic response data analyzer determines whether additional differential
dimensional data are generated for modification of the second set of model data.
Claim 4
Dependent Claim
30 words
The system of claim 2 or claim 3 wherein the dynamic response data analyzer
determines whether a set of model data that generates dynamic response data meets an
acceptance parameter.
Claim 5
Independent Claim
22 words
The system of any one of claims 1 to 4 wherein the anthropometric data analyzer
receives computed tomography (CT) data for analysis.
Claim 6
Independent Claim
23 words
The system of any one of claims 1 to 5 wherein the anthropometric data analyzer
receives magnetic resonance image (MRI) data for analysis.
Claim 7
Independent Claim
21 words
The system of any one of claims 1 to 6 wherein the anthropometric data analyzer is
a static image data analyzer.
Claim 8
Dependent Claim
42 words
The system of claim 7 wherein the static image data analyzer is a computer aided
design (CAD) program that enables an operator to select a feature in static image data for
defining a geometric dimension and to measure the selected geometric dimension.
Claim 9
Dependent Claim
23 words
The system of claim 7 wherein the static image data analyzer is an adaptation of a
computer program that measures terrain topographic features.
Claim 10
Independent Claim
29 words
The system of any one of claims 1 to 9, further comprising: a patient model emulator for generating emulation force parameters to be used by
the kinematic model emulator.
Claim 11
Dependent Claim
24 words
The system of claim 10 wherein the patient model emulator uses image data of a
joint in motion to generate the emulation force parameters.
Claim 12
Dependent Claim
25 words
The system of claim 11 wherein the patient model emulator uses fluoroscopic
image data of a joint in motion to generate the emulation force parameters.
Claim 13
Dependent Claim
40 words
The system of claim 12 wherein the dynamic response data analyzer compares the
dynamic response data generated by the kinematic model simulator to the fluoroscopic data
used to generate the emulation force parameters to evaluate the set of model data.
Claim 14
Dependent Claim
24 words
The system of claim 13 wherein the dynamic response data analyzer generates a set
of differential data to alter the set of model data.
Claim 15
Independent Claim
28 words
The system of any one of claims 1 to 14 wherein the dynamic response data
analyzer receives motion data in the time domain from the kinematic model simulator.
Claim 16
Independent Claim
33 words
The system of any one of claims 1 to 15 wherein the kinematic model simulator is a
computer program that applies emulation force parameters to an implant model to generate
dynamic response data.
Claim 17
Independent Claim
69 words
The system of any one of claims 1 to 16 further comprising: a motion data analyzer for analyzing joint motion image data studies to group the
studies into sets that are correlated by the degree of motion demonstrated during a
particular activity, and the anthropometric data analyzer identifies a plurality of geometric dimensions and
a range of values for the identified dimensions for the joints imaged in a set.
References Cited (Backward Citations)
US6002859A
Cited
GB2382777A
Cited
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