Blanching response pressure sore detector apparatus and method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7155273
APP PUB NO 20040054303A1
SERIAL NO

10208450

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Abstract

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A portable, hand-holdable Blanching Response Tester apparatus (BRT) pressable against the skin of a human patient to provide an indication of a non-blanchable erythema indicative of an incipient pressure sore includes a housing having in a front end wall thereof an optically transmissive window and within the housing a broad-band light source electrically energizable to emit light including energy in the near infrared (0.8.mu. to 1.5.mu.) outwards through the window. A first, leading photodetector spaced laterally apart from the light source and a second, trailing photodetector spaced equidistant from the light source in an opposite direction have fields of view which include regions of the skin ahead of an behind a central area of the skin illuminated by the light source. Electronic signal processing circuitry within the BRT housing includes a pair of differential amplifiers having opposite pairs of inputs connected to the pair of photodetectors, one amplifier driving a first, 'NO-GO' red, light-emitting diode mounted in an upper wall panel of the housing, and the other amplifier driving a second, 'GO' green LED. When the BRT window is pressed against the skin and the light source energized, if light reflected from the skin by leading photodetector over a questionable area of the skin exceeds light reflected from a known healthy sample area of skin beneath the trailing photodetector the red, NO-GO LED is illuminated if the difference in light values exceeds a first threshold values signifying a pressure sore, and if light received by the trailing photodetector exceeds that received by the leading photodetector by a second threshold value, the green, GO LED is illuminated.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Taylor, Geoffrey L Winnipeg, Manitoba, CA 24 711

Cited Art Landscape

Patent Info (Count) # Cites Year
 
THE CHARLOTTE-MECKLENBURG HOSPITAL AUTHORITY DBA CAROLINAS HEALTH CARE SYSTEM (1)
* 6862542 Erythema measuring device 8 2002
 
HUNTLEIGH TECHNOLOGY LIMITED (1)
* 6631288 Skin evaluation apparatus 4 2000
 
SAMSUNG ELECTRONICS CO., LTD. (1)
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BRITISH TECHNOLOGY GROUP LIMITED (1)
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Non-Invasive Technology, Inc. (1)
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PHYSICAL OPTICS CORPORATION (1)
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Artel, Inc. (1)
* 4797000 Comparative colorimeter 16 1986
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
I.B.R. ISRAELI BIOTECHNOLOGY RESEARCH LTD. (1)
* 2014/0308,372 JOJOBA EXTRACT USEFUL IN IMPROVING SKIN BARRIER FUNCTIONS 0 2012
 
GEARBOX, LLC (6)
9717896 implant information 0 2007
8409132 implant information 1 2007
8636670 Circulatory monitoring systems and methods 13 2008
8403881 Circulatory monitoring systems and methods 65 2008
8317776 Circulatory monitoring systems and methods 61 2008
8870813 Circulatory monitoring systems and methods 4 2008
 
PATIENTECH LLC (8)
8533879 Adaptive cushion method and apparatus for minimizing force concentrations on a human body 7 2008
8161826 Elastically stretchable fabric force sensor arrays and methods of making 25 2009
8661915 Elastically stretchable fabric force sensor arrays and methods of making 9 2012
8904876 Flexible piezocapacitive and piezoresistive force and pressure sensors 12 2012
8966997 Pressure sensing mat 3 2012
8800386 Force sensing sheet 3 2012
8997588 Force detecting mat with multiple sensor types 3 2013
* 8875331 Adaptive cushion method and apparatus for minimizing force concentrations on a human body 2 2013
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (3)
8838211 Multi-wavelength diagnostic imager 2 2009
* 8606344 Integrated patient bed system 2 2009
* 2009/0275,808 INTEGRATED PATIENT BED SYSTEM 28 2009
 
UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION (2)
8116838 Medical device for diagnosing pressure ulcers 5 2008
* 2009/0234,206 MEDICAL DEVICE FOR DIAGNOSING PRESSURE ULCERS 25 2008
* Cited By Examiner

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