US3722108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection training aid
Assignee: WEATHERBY NASCO Inc
•
Filing: 1972-04-12
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Granted: 1973-03-27
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Expires: 1992-04-12
Abstract
Abstract A training aid for use in the medical arts and simulating at least a portion of a human body. The training aid includes a skin-simulating substance enclosing a flesh-simulating substance to form a replica of an extremity of a human body such as an arm. A bone-simulating substance is embedded in the flesh-simulating substance. Flexible tubes are embedded in the flesh-simulating substance to simulate arteries and veins. Fluid-receiving and retaining buttonlike members are placed immediately under the skin-simulating substance for use in teaching allergy testing.
Inventors
- 👤 M Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:45
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/28; G09B23/285
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
143 words
In a training aid for use in relation to allergy-test injections, an anatomical part having an internal fleshsimulating portion, a skin-simulating outer layer overlying and in contact with said internal portion, said outer layer having a greater flexibility than said internal portion and at least one blister-simulating element normally substantially embedded in said internal portion and having its outer surface underlying and in contact with the undersurface of said outer layer, said internal portion and outer layer being formed of nonporous, nonfluid-receptive material, said element being formed of fluidreceptive and retaining material, said material of said element being expandable in response to injection of fluid into said element, said greater flexibility of said outer layer in relation to said internal portion causing expansion of said element to be directed outwardly to distort said outer layer in the manner of an allergy reaction blister.
Claim 2
Dependent Claim
143 words
In a training aid for use in relation to allergy-test injections, an anatomical part having an internal fleshsimulating portion, a skin-simulating outer layer overlying and in contact with said internal portion, said outer layer having a greater flexibility than said internal portion and at least one blister-simulating element normally substantially embedded in said internal portion and having its outer surface underlying and in contact with the undersurface of said outer layer, said internal portion and outer layer being formed of nonporous, nonfluid-receptive material, said element being formed of fluidreceptive and retaining material, said material of said element being expandable in response to injection of fluid into said element, said greater flexibility of said outer layer in relation to said internal portion causing expansion of said element to be directed outwardly to distort said outer layer in the manner of an allergy reaction blister.
Claim 3
Dependent Claim
52 words
The structure of claim 1 wherein said outer layer and element are formed of a material having a return characteristic whereby withdrawal of fluid from said element produces an automatic return of said outer layer to its original nondistorted configuration and the return of said element to its normal substantially embedded position.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |