Patient monitor sheets
First Claim
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1. A device for monitoring patients, comprising:
- a) a sheet having a first sensor segment and a second sensor segment;
b) said first sensor segment comprised of a metallic foil layer and a first flexible polymeric layer;
c) said second sensor segment comprised of a piezoelectric film layer and a second flexible polymeric layer;
d) said first sensor segment capable of generating an electrical signal corresponding to body position of said patient being monitored; and
e) said second sensor segment capable of generating an electrical signal corresponding to respiratory induced, pulmonary motion and cardiovascular pumping action.
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Abstract
A patient monitor sheet device of simplified construction permits the accurate measurement of respiration, heart beat, and body position with a minimum of intrusion on the subject. Sensors are located in a bed sheet with which a subject comes in contact. One sensor produces a signal corresponding to respiratory induced, pulmonary motion, and myocardial pumping sounds. A second sensor produces a signal corresponding to changes in body position. A processor amplifies and filters the induced signals resulting in resolved output highly correlated to respiration rate, heart beat rate, and changes in body position.
248 Citations
18 Claims
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1. A device for monitoring patients, comprising:
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a) a sheet having a first sensor segment and a second sensor segment; b) said first sensor segment comprised of a metallic foil layer and a first flexible polymeric layer; c) said second sensor segment comprised of a piezoelectric film layer and a second flexible polymeric layer; d) said first sensor segment capable of generating an electrical signal corresponding to body position of said patient being monitored; and e) said second sensor segment capable of generating an electrical signal corresponding to respiratory induced, pulmonary motion and cardiovascular pumping action. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A patient monitoring sheet, comprising:
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a) a first sensor segment comprised of a layer of aluminum foil situated between a first flexible polymeric layer and a second flexible polymeric layer; b) a second sensor segment comprised of a piezo-electric film layer situated between said second flexible polymeric layer and a third flexible polymeric layer; c) said first sensor segment capable of generating an electrical signal corresponding to body position of said patient being monitored; and d) said second sensor segment capable of generating an electrical signal corresponding to respiratory induced, pulmonary motion and cardiovascular pumping action. - View Dependent Claims (9, 10, 11)
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12. A device for monitoring respiratory activity, heart rate and body position, comprising:
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a) a first detector means sensitive to respiratory induced motion and heart beat sounds, said first detector means capable of generating a first electrical signal in response to said respiratory induced motion and heart beat; b) a second detector means sensitive to changes in body position, said detector means capable of generating a second electrical signal corresponding to movement by the detector means in response to said body position changes; and c) a processor means for receiving said first and second electrical signals from said detector means and converting said electrical signal into filtered signals for an output device. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification