US5220308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint excursion monitor
Assignee: Individual
•
Filing: 1991-08-30
•
Granted: 1993-06-15
•
Expires: 2011-08-30
Abstract
Abstract A joint excursion monitor device which, when strapped onto a person's leg, can monitor a pre-set limit of joint movement, and when that pre-set limit is reached, generate a signal. When set to a point just beyond the allowable limit, this signal may be used to alert the wearer that he has exceeded the allowable range. Alternatively, when set to a point just inside the allowable limit, this signal may alert the wearer that the desired goal has been reached. The device may also count the total number of joint excursions. An alternate embodiment additionally monitors a second plane of joint motion, generally perpendicular to the first plane of motion, and similarly initiates an alarm signal in the event that the wearer should exceed a pre-set allowance.
Inventors
- 👤 Jonathan R. Batzdorff
- 👤 Alfred Batzdorff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:03
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/45; A61B5/4528; A61B5/103; A61B5/11; A61B5/1121; A61B5/22; A61B5/224; A61B5/225; H; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/22; H01H21/24; H01H21/26
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
160 words
A joint excursion monitor apparatus to measure relative movement of two segments of a jointed limb, said monitor apparatus comprising: a first bar portion having a strap assembly for releasable attachment to one segment of a jointed limb; a second bar portion having a strap assembly for releasable attachment to the other segment of said jointed limb; a hinge portion connecting said first bar portion to said second bar portion proximate the axis of the limb joint to be monitored, said hinge portion including a first bar portion electrical contact and a second bar portion electrical contact, said first and second bar portion electrical contacts being adjustable relative to one another and conditioned to close when said first bar portion and said second bar portion are moved to a first selected angular relationship; circuit means for generating an alarm signal when said first and second bar portion electrical contacts are closed; and a signal box for displaying excursion count data.
Claim 2
Dependent Claim
160 words
A joint excursion monitor apparatus to measure relative movement of two segments of a jointed limb, said monitor apparatus comprising: a first bar portion having a strap assembly for releasable attachment to one segment of a jointed limb; a second bar portion having a strap assembly for releasable attachment to the other segment of said jointed limb; a hinge portion connecting said first bar portion to said second bar portion proximate the axis of the limb joint to be monitored, said hinge portion including a first bar portion electrical contact and a second bar portion electrical contact, said first and second bar portion electrical contacts being adjustable relative to one another and conditioned to close when said first bar portion and said second bar portion are moved to a first selected angular relationship; circuit means for generating an alarm signal when said first and second bar portion electrical contacts are closed; and a signal box for displaying excursion count data.
Claim 3
Dependent Claim
46 words
The joint monitor of claim 1 further including second circuit means for generating a second alarm signal when said first bar portion and said second bar portion are moved to a second selected angular relationship in a plane generally perpendicular to said first selected angular relationship.
Claim 4
Dependent Claim
14 words
The joint monitor of claim 1 wherein said strap assemblies comprise asymmetrical plastic hoops.
Claim 5
Dependent Claim
14 words
The joint monitor of claim 1 wherein said alarm signal comprises an audible sound.
Claim 6
Dependent Claim
14 words
The joint monitor of claim 1 wherein said signal box comprises a selector switch.
Claim 7
Dependent Claim
160 words
A joint excursion monitor apparatus to measure relation movement of two segments of a jointed limb, said monitor apparatus comprising: a first bar portion having a strap assembly for releasable attachment to one segment of a jointed limb; a second bar portion having a strap assembly for releasable attachment to the other segment of said jointed limb; a hinge portion connecting said first bar portion to said second bar portion proximate the axis of the limb joint to be monitored, said hinge portion including a first bar portion electrical contact and a second bar portion electrical contact, said first and second bar portion electrical contacts being adjustable relative to one another and conditioned to close when said first bar portion and said second bar portion are moved to a first selected angular relationship; circuit means for generating an alarm signal when said first and second bar portion electrical contacts are closed; and a signal box for displaying limit count data.
Claim 8
Dependent Claim
160 words
A joint excursion monitor apparatus to measure relation movement of two segments of a jointed limb, said monitor apparatus comprising: a first bar portion having a strap assembly for releasable attachment to one segment of a jointed limb; a second bar portion having a strap assembly for releasable attachment to the other segment of said jointed limb; a hinge portion connecting said first bar portion to said second bar portion proximate the axis of the limb joint to be monitored, said hinge portion including a first bar portion electrical contact and a second bar portion electrical contact, said first and second bar portion electrical contacts being adjustable relative to one another and conditioned to close when said first bar portion and said second bar portion are moved to a first selected angular relationship; circuit means for generating an alarm signal when said first and second bar portion electrical contacts are closed; and a signal box for displaying limit count data.
Claim 9
Dependent Claim
46 words
The joint monitor of claim 6 further including second circuit means for generating a second alarm signal when said first bar portion and said second bar portion are moved to a second selected angular relationship in a plane generally perpendicular to said first selected angular relationship.
Claim 10
Dependent Claim
14 words
The joint monitor of claim 6 wherein said strap assemblies comprise asymmetrical plastic hoops.
Claim 11
Dependent Claim
14 words
The joint monitor of claim 6 wherein said alarm signal comprises an audible sound.
Claim 12
Dependent Claim
14 words
The joint monitor of claim 6 wherein said signal box comprises a selector switch.
References Cited (Backward Citations)
SU596235A1
Cited
US4834057A
Cited
SU997674A1
Cited
US4436099A
Cited
US4557275A
Cited
US5027688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-14 | 1996-12-14 | 1997-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-14 | 2000-12-14 | 2001-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-14 | 2004-12-14 | 2005-06-15 | $7700.00 | Window Closed / Lapsed |