An Exterior Optical Fibre Sensing Technology Used for Interface Pressure Measurement Between Cable and Accessory

Objective: To quantify the influence of posture and exercise on the interface pressure obtained under elastic stockings with compression pads. Design: Interface pressure measurement and plethysmographic evaluation of elastic stockings with and without compression pads. Setting: Department of Surgery, Aichi Prefectural College of Nursing, Nagoya, Japan. Main outcome measures: Pressure measurements in 24 volunteers were obtained beneath elastic stockings, elastic bandages and short-stretch bandages during supine resting, standing, tip-toe exercise and walking, and the effect of elastic stockings on the muscle pump of the leg was evaluated by strain-gauge plethysmography in 40 limbs with varicose veins. Results: Without compression pads, only short-stretch bandages showed a significant increase in pressure during standing and exercise. When pads were used, however, elastic stockings and bandages also showed a significant increase. With pads, significant improvement in the expelled volume during exercise was observed by strain-gauge plethysmography. Conclusions: Interface pressure under elastic materials during posture and exercise is similar to that under short-stretch bandages when compression pads are used, and pads effectively augment the muscle pump.

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Real-time monitoring of agricultural ammonia emissions based on optical fibre sensing technology

2010 IEEE Sensors ◽

10.1109/icsens.2010.5690821 ◽

2010 ◽

Cited By ~ 3

Author(s):

S O'Keeffe ◽

H Manap ◽

G Dooly ◽

E Lewis

Keyword(s):

Real Time ◽

Optical Fibre ◽

Ammonia Emissions ◽

Real Time Monitoring ◽

Sensing Technology

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Design and Development of a Monitoring System for the Interface Pressure Measurement of Seated People

IEEE Transactions on Instrumentation and Measurement ◽

10.1109/tim.2013.2240051 ◽

2013 ◽

Vol 62 (3) ◽

pp. 570-577 ◽

Cited By ~ 16

Author(s):

Elisa Marenzi ◽

Gian Mario Bertolotti ◽

Andrea Cristiani

Keyword(s):

Monitoring System ◽

Pressure Measurement ◽

Interface Pressure ◽

Design And Development

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High sensitivity pressure measurement using optical fibre sensors mounted on a composite diaphragm

Optics Express ◽

10.1364/oe.416715 ◽

2021 ◽

Vol 29 (3) ◽

pp. 4105

Author(s):

Laura F. J. Aime ◽

Thomas Kissinger ◽

Stephen W. James ◽

Edmon Chehura ◽

Alberto Verzeletti ◽

...

Keyword(s):

Optical Fibre ◽

Pressure Measurement ◽

High Sensitivity ◽

Optical Fibre Sensors

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Smart sensors with optical fibre transmitters for pressure measurement

Mine Planning and Equipment Selection 1997 ◽

10.1201/9781003078166-122 ◽

2020 ◽

pp. 657-660

Author(s):

Lubomír Smutný

Keyword(s):

Optical Fibre ◽

Pressure Measurement ◽

Smart Sensors

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Effect of subsurface pressure on the interface pressure measurement in an in vitro experiment

Phlebology The Journal of Venous Disease ◽

10.1177/0268355519857627 ◽

2019 ◽

Vol 35 (2) ◽

pp. 134-138

Author(s):

Yung-Wei Chi ◽

Ray Lin ◽

Kuo-Hao Tseng ◽

Blythe Durbin-Johnson

Keyword(s):

Pressure Measurement ◽

External Pressure ◽

Linear Mixed Effect Model ◽

Mixed Effect Model ◽

Interface Pressure ◽

Mixed Effect ◽

Piezoresistive Sensor ◽

Effect Model ◽

Pressure Cuff

Introduction It was hypothesized that subsurface pressure (mimicking subcutaneous pressure) variation may affect interface pressure measurement. Method BISCO® (Rogers, CT) foam was placed on a cylinder cuff model for the experiment. Picopress® and a piezoresistive sensor were used for interface pressure measurement. External pressure was applied using an automated pressure cuff at 40 mmHg. Subsurface pressure mimicking subcutaneous pressure from 3 mmHg to 12 mmHg was generated by a pressure pump underneath the foam. Interface pressure was compared between the true pressure, 40 mmHg, versus Picopress® and the piezoresistive sensor using linear mixed effect model (SAS software, version 9.4, SAS Institute, Cary, NC). Result Interface pressure measurement using Picopress® did not differ between the incremental subsurface pressures (mean 45.4 ± 0.4) ( P = 0.54), in contrast to piezoresistive sensor, which demonstrated a difference (mean 42.65 ± 2.7) ( P < 0.001). This difference appeared to be linearly related. Conclusion Subsurface pressure mimicking subcutaneous pressure may affect the overall interface pressure measurement according to the piezoresistive sensor but not Picopress®.

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