Position sensing and signaling system
First Claim
1. A signaling device comprising:
- a. a first housing,h. an elongated first lever having a hooked end, attached to said first housing and disposed in a downward direction with respect thereto,c. a sense lever mechanism attached to said first housing, having a sense lever rotatably attached thereto, said sense lever disposed in an upward direction with respect to said first lever,d. an electrical circuit disposed in said first housing, electrically coupled to a variable resistance element, said circuit and adapted for generating a signal on a change in resistance of said variable resistance element, said variable resistance element comprising a single layer of electrostatic foam, adapted for changing resistance on compression, said resistance element disposed between said sense lever and said housing,e. at least one pair of opposite polarity electrodes electrically coupled to said electrical circuit and adapted for engaging one side of said variable resistance element,f. means for converting said signal from said electrical circuit into a selected physical signal, andg. means for selecting said selected physical signal,whereby movement of said second lever compresses said foam and causes said circuit to generate a signal on change in resistance of said foam tbereby generating said selected physical signal.
3 Assignments
0 Petitions
Accused Products
Abstract
In a biofeedback device adapted for sensing position of the Transverse Abdominis Muscle (TAM) on small excursions of the abdominal wall including a sensor which changes resistance on a change in dimension thereof in any direction. The sensor element includes a plurality of interlaced electrodes in juxtaposition with a resilient antistatic device. A particular implementation is in the form of a two pole sensor incorporated into a bio-feedback monitor. The sensor is physically attached to the monitor which can be worn on the belt or at or near the waist line. A lever on the back of the monitor rests against the body and engages the sensor comprising a variable resistance foam component. Pressure exerted against the lever, when the TAM is relaxed causes a change in the resistance which energizes the electrical circuit above a given threshold and causes a variable pitch sound to be generated or alternatively drives an electrical vibrator motor at a variable speed. The variation in pitch or vibrator speed is directly related to the amount of pressure exerted on the lever. Thus the wearer of the device can pull in the TAM and eliminate the signal or the vibration and thereby improve his or her general physical condition. The biofeedback device is adapted so that the lever may be bypassed or removed and a variety of different types of anti-static foam sensors may attached or otherwise interconnected to the electrical circuit in place of the lever to be utilized for other purposes. One of these is a constrictor muscle sensor which may be used to sense pressure exerted when exercising such muscles. Other forms of the devices contemplated by this invention, the sensor may comprise a plurality of electrodes connected to a plurality of poles to measure changes in pressure at different locations or in a different dimension. Another feature of the invention is that the sensor is also adapted to sense a change in humidity and thus may be used as a mask or places in close proximity to a changing humidity such as in the path of a patients breathing so that changes in inhaling or exhaling may be monitored.
49 Citations
19 Claims
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1. A signaling device comprising:
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a. a first housing, h. an elongated first lever having a hooked end, attached to said first housing and disposed in a downward direction with respect thereto, c. a sense lever mechanism attached to said first housing, having a sense lever rotatably attached thereto, said sense lever disposed in an upward direction with respect to said first lever, d. an electrical circuit disposed in said first housing, electrically coupled to a variable resistance element, said circuit and adapted for generating a signal on a change in resistance of said variable resistance element, said variable resistance element comprising a single layer of electrostatic foam, adapted for changing resistance on compression, said resistance element disposed between said sense lever and said housing, e. at least one pair of opposite polarity electrodes electrically coupled to said electrical circuit and adapted for engaging one side of said variable resistance element, f. means for converting said signal from said electrical circuit into a selected physical signal, and g. means for selecting said selected physical signal, whereby movement of said second lever compresses said foam and causes said circuit to generate a signal on change in resistance of said foam tbereby generating said selected physical signal. - View Dependent Claims (2, 3, 4, 5, 10, 11)
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6. A signaling device comprising:
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a. a first housing, b. an elongated first lever, attached to said first housing and disposed in a downward direction with respect thereto, c. a sense mechanism attached to said first housing, d. a sense lever rotatably attached to said sense mechanism having a button thereon disposed toward said first housing, said sense lever disposed in an upward direction with respect to said first lever, e. an electrical circuit disposed in said first housing adapted for generating a signal on change in resistance of a variable resistance element coupled to at least one pair of opposite polarity electrodes electrically coupled to said electrical circuit adapted for coupling with variahle resistance element said variable resistance element comprising a single layer of electrostatic foam, adapted for changing resistance on compression, disposed between said second lever and said housing and engaging one side of said foam, f. means for converting said signal from said electrical circuit into a selected physical signal, and g. means for selecting said selected physical signal.
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7. A variable resistor comprising:
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a. a layer of conductive material comprising a single layer of antistatic foam adapted to change resistance on change in at least one physical dimension, and b. two electrodes having a plurality of interlaced leads each lead disposed between and spaced apart from leads of opposite polarity of both electrodes in juxtaposition with one side of said layer of conductive material.
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8. A variable resistor comprising:
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a. a layer of conductive material comprising a single layer of antistatic foam adapted to change resistance on change in at least one physical dimension, and b. at least two electrodes in juxtaposition with said antistatic foam which electrodes each comprise a grid of interlaced electrode elements, said grid comprising a plurality of generally parallel elongated conductive elements interposed between and spaced apart from generally parallel conductive elements of the electrode of the opposite pole, said electrode grid disposed in juxtaposition with one side of said antistatic foam layer such that when said antistatic foam is deformed at least two electrode elements of the grid of said electrodes of opposite poles will engage said conductive material at a point along the length of said elements and exhibit a variable resistance between them. - View Dependent Claims (18)
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9. A variable resistor comprising:
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a. a resistive foam adapted to change resistance on change in any physical dimension, and b. a plurality of pairs of electrodes of opposite polarity each pair of electrodes in juxtaposition with different sides of said foam. - View Dependent Claims (19)
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12. A transverse abdominis muscle position signaling device comprising:
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a. a housing, b. an electrical circuit disposed in said housing adapted for generating a signal having a variable amplitude and a variable frequency component, c. position sensing means coupled to said housing and adapted to be disposed in juxtaposition with the abdominal wall and moveable in response to a change in position of the transverse abdominis muscle on excursions of the abdominal wall, d. variable resistance means electrically coupled to said electrical circuit for sensing movement of said position sensing means and causing said electrical circuit to generate said signal, e. at least one pair of opposite polarity electrodes electrically coupled to said electrical circuit adapted for coupling with said variable resistance means, f. means for converting said signal from signal electrical circuit into a selected physical signal, and g. means for selecting said selected physical signal. - View Dependent Claims (13)
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14. A signaling device comprising:
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a. a first housing, b. an elongated first lever, having a hooked end, rotatably attached to said first housing adapted for engaging a belt and disposed in a downward direction with respect thereto, c. a sense mechanism attached to said first housing, d. a sense lever rotatably attached to said sense mechanism having a button thereon disposed toward said first housing, said sense lever disposed in an upward direction with respect to said first lever; e. an electrical circuit disposed in said first housing adapted for generating a signal on a change in resistance, and f. at least one pair of opposite polarity electrodes electrically coupled to said electrical circuit adapted for coupling with said resistance element on one side of said foam, h. a resistance element electrically coupled to said electrical circuit for sensing a change in position of said sense lever and causing said electrical circuit to generate said signal, said sensor further comprising a single layer of electrostatic foam, adapted for changing resistance on compression, disposed between said second lever and said housing and engaging said electrodes and generating a variable resistance when at least a portion of said variable resistance foam is electrically coupled to said electrodes electrically connected to said circuit, i. means for converting said signal from said electrical circuit into a selected physical signal, and j. means for selecting said selected physical signal, k. apparatus for converting said electrical signal into a selected physical signal. - View Dependent Claims (15, 16, 17)
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Specification