Wearable sensor device

• US 9,155,505 B2
• Filed: 02/05/2010
• Issued: 10/13/2015
• Est. Priority Date: 02/05/2010
• Status: Active Grant

• Current Assignee: Biosigns Pte Limited
• Original Assignee: Biovotion AG (Biofourmis AG)
• Inventors: Caduff, Andreas, Krebs, Hans-Joachim, Stalder, Gianlucca, Talary, Mark Stuart
• Primary Examiner(s): Larson, Justin
• Assistant Examiner(s): Vanterpool, Lester L
• Application Number:
  US13/577,025
• Publication Number:
  US 20130211204A1
• Time in Patent Office: 2,076 Days
• Field of Search: 224/222, 224/219, 224/164, 224/167, 224/168, 224/171, 224/180, 128/644
• US Class Current: 1/1
• CPC Class Codes: A44C 5/00 Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps settings for holding gems or the like A44C17/02; devices for putting-on or pulling-off bracelets A47G25/901
• CPC Class Codes: A45F 3/14 Carrying-straps; Pack-carrying harnesses
• CPC Class Codes: A45F 5/00 Holders or carriers for hand articles; Holders or carriers for use while travelling or camping
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/02055 Simultaneously evaluating both cardiovascular condition and temperature
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/0261 using optical means, e.g. infrared light
• CPC Class Codes: A61B 5/0265 using electromagnetic means, e.g. electromagnetic flowmeter
• CPC Class Codes: A61B 5/053 Measuring electrical impedance or conductance of a portion of the body
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/6824 Arm or wrist
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: A61B 5/6843 Monitoring or controlling sensor contact pressure
• CPC Class Codes: A61B 5/7207 of noise induced by motion artifacts
• CPC Class Codes: A61B 8/06 Measuring blood flow measuring volume flow in general G01F, e.g. G01F1/66, G01F1/72; measuring speed of fluids in general G01P5/00

Abstract

A sensor device comprises a sensor (1) to be held against the wearer'"'"'s skin. The sensor (1) is arranged on one side of a housing (2), and the housing is connected to a band (5) for mounting it to a body part, such as an arm or leg. Various stopper devices (10, 14, 20) are arranged on the side of the housing (2) and the band (5) that face the skin. The stopper devices improve static friction, thereby holding the housing (2) in place.

Claims

1. A wearable sensor device for measuring a physiological parameter of a wearer, said device comprising

a housing comprising at least one sensor arranged on a first side of said housing to be applied against the wearer'"'"'s skin,

a flexible band connected to said housing for being wound around a body part of the wearer and for holding the first side of said housing against the wearer'"'"'s skin, wherein said band has a first side to be facing said wearer'"'"'s skin,

at least one stopper device arranged over a surface of the first side of said housing or of said band, wherein said stopper device has a higher coefficient of static friction than said surface

wherein said stopper device comprises a flexible strip having a first end attached to said housing and extending along part of the first side of said band, wherein a second end of said strip opposite said first end is movable with respect to said band, and

wherein said strip has a higher coefficient of static friction with respect to said skin than with respect to the first surface of said band.

2. The sensor device of claim 1, further comprising a strap attached to said strip and extending around said band for holding said strip against said band.

3. The sensor device of claim 1, comprising a first strip and a second strip arranged at opposite sides of said housing, with said first strip located at a first end of said band and said second strip located at a second end of said band.

4. The sensor device of claim 1, wherein said strip has a width approximately equal to a width of said band.

9. The sensor device of claim 1, comprising at least one stopper device affixed to the first side of said band.

10. The sensor device of claim 1, comprising at least one array of nubs affixed to the first side of said band.

11. The sensor device of claim 1, wherein said band is elastically distendable along a longitudinal direction thereof with an elasticity being in a range of 0.20 to 0.32 N/%, in particular 0.26 N/%, with said elasticity expressing a change of force at 1% change of length.

12. The sensor device of claim 1, wherein at least a surface of said stopper device is of silicone.

13. The sensor device of claim 1, wherein said band is moisture permeable and wherein the first side of said band is of a hydrophobic material and a second side of said band, which is opposite to said first side, is of a hydrophilic material.

5. A wearable sensor device for measuring a physiological parameter of a wearer, said device comprising

a housing comprising at least one sensor arranged on a first side of said housing to be applied against the wearer'"'"'s skin,

a flexible band connected to said housing for being wound around a body part of the wearer and for holding the first side of said housing against the wearer'"'"'s skin, wherein said band has a first side to be facing said wearer'"'"'s skin,

at least one stopper device arranged over a surface of the first side of said housing or of said band, wherein said stopper device has a higher coefficient of static friction than said surface, and

at least one stopper device affixed to the first side of said housing.

6. The sensor device of claim 5, comprising at least a first and a second stopper device at opposite sides of said sensor.

8. The sensor device of claim 5, wherein said housing forms a recess, wherein said sensor is arranged at a bottom of said recess and said stopper device is arranged on at least one side wall of said recess, with said side wall being inclined with respect to said bottom, and in particular wherein said bottom is substantially flat once filled with the sensor.

7. The sensor device of 5, wherein said stopper device is longitudinal with a longitudinal axis extending transversally with respect to a longitudinal axis of said band.