US5429140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated virtual reality rehabilitation system
Assignee: Wyeth LLC
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Filing: 1993-06-04
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Granted: 1995-07-04
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Expires: 2013-06-04
Abstract
Abstract A rehabilitation system employs a force feedback system, such as a force feedback glove, to simulate virtual deformable objects. Prior to rehabilitation, the patient places his or her hand in a sensing glove which measures the force exertable by the patient's digits. Information from the sensing glove is received by an interface and transmitted to a computer where the information can be used to diagnose the patient's manual capability. The computer generates rehabilitation control signals for a force feedback glove. The patient places his or her hand in the force feedback glove and attempts to bring the digits together as though grasping the virtual object. The force feedback glove resists the squeezing movement of the digits in a manner that simulates the tactile feel of the virtual object. The force exerted by the fingers of the patient is fed back to the computer control system where it can be recorded and/or used to modify future rehabilitation control signals. The basic concept of rehabilitation in virtual environment with force feedback can also be applied to other appendages of the human body including arms, legs, neck, knees, elbows and other articulated joints.
Inventors
- 👤 Grigore C. Burdea
- 👤 Noshir A. Langrana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:37
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/00181; A61; A61B; A61B5/00; A61B5/22; A61B5/224; A61B5/225; A63B21/008; A61B5/45; A61B5/4528; A63B2220/00; A63B2220/10; A63B2220/13; A63B2220/50; A63B2220/51
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
92 words
A rehabilitation system for rehabilitating a human appendage, said system comprising: means for measuring position and force exerted by a human appendage, instruction means receiving said measurement of said position and force exerted by said human appendages and providing rehabilitation control signals; and force feedback rehabilitation means connected to said instruction means and attachable to said human appendages for manipulating said appendage in response to said rehabilitation control signals and feeding back to said instruction means feedback signals in response to the force exerted by said human appendages against said rehabilitation means.
Claim 2
Dependent Claim
92 words
A rehabilitation system for rehabilitating a human appendage, said system comprising: means for measuring position and force exerted by a human appendage, instruction means receiving said measurement of said position and force exerted by said human appendages and providing rehabilitation control signals; and force feedback rehabilitation means connected to said instruction means and attachable to said human appendages for manipulating said appendage in response to said rehabilitation control signals and feeding back to said instruction means feedback signals in response to the force exerted by said human appendages against said rehabilitation means.
Claim 3
Dependent Claim
20 words
The system of claim 1 wherein said rehabilitation means comprises a force feedback glove which is worn on said appendage.
Claim 4
Dependent Claim
66 words
The system of claim 2 wherein said force feedback glove includes: digit force measuring means for measuring the force exerted by at least a first digit of said hand; and, digit manipulation means for manipulating said first digit, wherein the force measured by said digit force measuring means is detected by said instruction means and employed to modify the force exerted by said digital manipulation means.
Claim 5
Dependent Claim
28 words
The system of claim 3 wherein said instruction means comprises: an interface means connected to said force feedback glove; and, a programmable computer connected to said interface means.
Claim 6
Dependent Claim
33 words
The system of claim 4 wherein said instruction means provides said rehabilitation control signals to said force feedback glove which causes said glove to simulate the reaction force of grasping a solid object.
Claim 7
Dependent Claim
31 words
The system of claim 5 wherein said force measurement means comprises; a sensing glove means connected to said instruction means for detecting the force exertable by said hand prior to rehabilitation.
Claim 8
Dependent Claim
36 words
The system of claim 6 wherein said instruction means includes diagnosis means for analyzing the output of said sensing glove means and producing a rehabilitation diagnosis in response thereto for implementation by said force feedback glove.
Claim 9
Dependent Claim
15 words
The system of claim 7 wherein said sensing glove means comprises said force feedback glove.
Claim 10
Dependent Claim
26 words
The system of claim 8 wherein said programmable computer includes an artificial intelligence program for performing said diagnosis means and said producing of said rehabilitation diagnosis.
Claim 11
Dependent Claim
24 words
The system of claim 9 further comprising a remote programmable computer connected to said programmable computer, said remote programmable computer including said instruction means.
Claim 12
Dependent Claim
15 words
The system of claim 10 wherein said simulated solid comprises a virtual reality simulated object.
Claim 13
Dependent Claim
15 words
The system of claim 11 wherein said virtual reality simulated object comprises a virtual sphere.
Claim 14
Dependent Claim
12 words
The system of claim 10 wherein said simulated solid object is deformable.
Claim 15
Dependent Claim
68 words
A rehabilitation method for use by a human appendage comprising the steps of: (a) detecting force exerted by said appendage on an object; (b) producing rehabilitation instructions in response to the detected force exerted by said appendage on said object; (c) feeding said rehabilitation instructions to a force producing means; and (d) exerting force with said force producing means on said appendage in response to said rehabilitation instructions.
Claim 16
Dependent Claim
68 words
A rehabilitation method for use by a human appendage comprising the steps of: (a) detecting force exerted by said appendage on an object; (b) producing rehabilitation instructions in response to the detected force exerted by said appendage on said object; (c) feeding said rehabilitation instructions to a force producing means; and (d) exerting force with said force producing means on said appendage in response to said rehabilitation instructions.
Claim 17
Dependent Claim
36 words
The method of claim 14 further comprising the steps of: (e) detecting the force exerted by said appendage prior to rehabilitation to produce diagnosis information; and, (f) producing rehabilitation instructions in response to said diagnosis information.
Claim 18
Dependent Claim
19 words
The method of claim 15 wherein the force detected in step (a) is measured by a force feedback glove.
Claim 19
Dependent Claim
25 words
The method of claim 16 wherein said rehabilitation instructions produced in step (b) comprise instructions for said force feedback glove to simulate a virtual object.
Claim 20
Dependent Claim
12 words
The method of claim 17 wherein said virtual object comprises a sphere.
Claim 21
Dependent Claim
12 words
The method of claim 18 wherein said virtual object comprises deformable sphere.
References Cited (Backward Citations)
US4414984A
Cited
US4922925A
Cited
US5191895A
Cited
US4986280A
Cited
US5082001A
Cited
US5184009A
Cited
US4972074A
Cited
US5086785A
Cited
US5005140A
Cited
US5184319A
Cited
US5165897A
Cited
US5163228A
Cited
US5143505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-07-03 | 1999-01-02 | 1999-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-03 | 2003-01-02 | 2003-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-03 | 2007-01-02 | 2007-07-04 | $7700.00 | Window Closed / Lapsed |