US4601665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardiac training mannikin
Assignee: Individual
•
Filing: 1985-04-01
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Granted: 1986-07-22
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Expires: 2005-04-01
Abstract
Abstract A cardiovascular examination training aid includes a mannikin with a flexible wall animated by a group of electromechanical linear transducers which are energized in accordance with the program in a selected ROM cartridge of a group and whose output is timed by a variable frequency clock and corresponds to a desired cardiovascular condition. Also controlled by the selected cartridge program is a pulse or heart sound produced in a stethoscope in accordance with the area of application of the stethoscope and the program in the selected cartridge. Blood pressure is measured by producing a pulse audio signal for the brachial artery region and applying a pressure cuff to the region and applying the signal to the stethoscope only when the cuff pressure is within a range established by the cartridge program.
Inventors
- 👤 Francis B. Messmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:11
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/28; G09B23/288
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
167 words
A teaching device comprising a mannikin having a movable outer wall, a plurality of electromechanical transducers having mechanical outputs coupled to different parts of said outer wall, a memory device digitally storing a predetermined program, control means programmed by said memory device and having a plurality of analog electrical output signals responsive to said program, means for individually energizing said transducers in response to said output signals to move said respective wall parts in a predetermined manner, a stethoscope applicable to different parts of said mannikin, and audio means responsive to the applied position of said stethoscope to said mannikin for supplying an audible signal to said stethoscope in accordance with a corresponding part of said digital program, said audio means including a sound synthesizer coupled to the output of said control means and producing on audio signal of a frequency responsive to its digital signal input and a modulator for varying the amplitude envelope of said audio signal in response to the controller means output signal.
Claim 2
Dependent Claim
167 words
A teaching device comprising a mannikin having a movable outer wall, a plurality of electromechanical transducers having mechanical outputs coupled to different parts of said outer wall, a memory device digitally storing a predetermined program, control means programmed by said memory device and having a plurality of analog electrical output signals responsive to said program, means for individually energizing said transducers in response to said output signals to move said respective wall parts in a predetermined manner, a stethoscope applicable to different parts of said mannikin, and audio means responsive to the applied position of said stethoscope to said mannikin for supplying an audible signal to said stethoscope in accordance with a corresponding part of said digital program, said audio means including a sound synthesizer coupled to the output of said control means and producing on audio signal of a frequency responsive to its digital signal input and a modulator for varying the amplitude envelope of said audio signal in response to the controller means output signal.
Claim 3
Dependent Claim
24 words
The teaching device of claim 1 including a plurality of said digitally stored programs and means programming said control means by a selected program.
Claim 4
Dependent Claim
35 words
The teaching device of claim 1 including a plurality of said memory devices each digitally storing a respective predetermined program and means for operatively coupling a selected of said memory devices to said control means.
Claim 5
Dependent Claim
46 words
The teaching device of claim 1 wherein said audio means includes sensing elements located at different parts of said mannikin wall and individually responsive to the proximity of said stethoscope and means responsive to said sensing devices for supplying said corresponding audio signal to said stethoscope.
Claim 6
Dependent Claim
30 words
The teaching device of claim 1 wherein said memory device stores a plurality of said programs corresponding to respective cardiovascular disorders and selection means for selectively activating alternative individual programs.
Claim 7
Dependent Claim
34 words
The teaching device of claim 1 wherein said memory device includes a plurality of cartridges, each of said cartridges non-volatilily storing one of said programs and said selection means selectively activates alternative individual programs.
Claim 8
Dependent Claim
52 words
The teaching device of claim 5 wherein said control means includes a motion signal buffer coupled to said memory device and passing and separating digital motion signals for each of said transducers to respective outputs and means including digital to analog converters for coupling each of said transducers to said respective outputs.
Claim 9
Dependent Claim
70 words
The teaching device of claim 5 wherein each of said programs includes an audio section including a plurality of area related audio portions and further comprising an earphone, audio control means including an audio buffer coupled to said memory device and sound control means for controlling said audio buffer to selectively alternatively pass individual audio portions and means coupled to the output of said audio buffer for energizing said earphone.
Claim 10
Dependent Claim
36 words
The teaching device of claim 8 comprising a stethoscope carrying said earphone, said sound control means being responsive to the area of application of said stethoscope to said torso for passing a corresponding audio signal portion.
Claim 11
Dependent Claim
35 words
The teaching device of claim 8 wherein said earphone energizing means includes an amplitude modulated audio frequency synthesizer connected to the output of said audio buffer and having an audio output connected to said earphone.
Claim 12
Dependent Claim
73 words
The teaching device of claim 1 comprising sphygmomanometer means for applying and varying the pressure above the brachial artery region of said mannikin, means indicating the value of said pressure, means responsive to said memory device for establishing a predetermined pressure range and means responsive to said applied pressure being outside said pressure range for disabling the supply of an audio signal to said stethoscope when in the area of said brachial artery.
Claim 13
Dependent Claim
157 words
A teaching device comprising a mannikin having a movable outer wall, a plurality of electromechanical transducers having mechanical outputs coupled to different parts of said outer wall, a memory device digitally storing a predetermined program, control means programmed by said memory device and having a plurality of analog electrical output signals responsive to said program, means for individually energizing said transducers in response to said output signals to move said respective wall parts in a predetermined manner, a stethoscope applicable to different parts of said mannikin, and audio means responsive to the applied position of said stethoscope to said mannikin for supplying an audible signal to said stethoscope in accordance with a corresponding part of said digital program, said audio means including sensing elements located at different parts of said mannikin wall and individually responsive to the proximity of said stethoscope and means responsive to said sensing devices for supplying said corresponding audio signal to said stethoscope.
Claim 14
Dependent Claim
157 words
A teaching device comprising a mannikin having a movable outer wall, a plurality of electromechanical transducers having mechanical outputs coupled to different parts of said outer wall, a memory device digitally storing a predetermined program, control means programmed by said memory device and having a plurality of analog electrical output signals responsive to said program, means for individually energizing said transducers in response to said output signals to move said respective wall parts in a predetermined manner, a stethoscope applicable to different parts of said mannikin, and audio means responsive to the applied position of said stethoscope to said mannikin for supplying an audible signal to said stethoscope in accordance with a corresponding part of said digital program, said audio means including sensing elements located at different parts of said mannikin wall and individually responsive to the proximity of said stethoscope and means responsive to said sensing devices for supplying said corresponding audio signal to said stethoscope.
Claim 15
Dependent Claim
26 words
The teaching device of claim 12 wherein said stethoscope includes an electrically responsive earphone, said audio signal being applied to the electrical input of said earphone.
Claim 16
Dependent Claim
24 words
The teaching device of claim 13 including a plurality of said digitally stored programs and means programming said control means by a selected program.
Claim 17
Dependent Claim
35 words
The teaching device of claim 13 including a plurality of said memory devices each digitally storing a respective predetermined program and means for operatively coupling a selected of said memory devices to said control means.
References Cited (Backward Citations)
US3520071A
Cited
US3662076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |