Interface pressure measurement: testing and selecting sensors

2002 ◽  
Vol 11 (9) ◽  
pp. 325-329 ◽  
Author(s):  
T. Bethaves
Keyword(s):  
Pressure Measurement ◽  
Interface Pressure

Interface Pressure under Elastic Stockings with Compression Pads during Posture Changes and Exercise

1999 ◽  
Vol 14 (2) ◽  
pp. 71-76 ◽  
Author(s):  
M. Hirai
Keyword(s):  
Strain Gauge ◽  
Pressure Measurement ◽  
Varicose Veins ◽  
Pressure Measurements ◽  
Interface Pressure ◽  
Elastic Materials ◽  
Muscle Pump ◽  
Strain Gauge Plethysmography ◽  
Elastic Stockings ◽  
College Of Nursing

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.

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

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®.

Instruction of Compression Therapy by Means of Interface Pressure Measurement

2000 ◽  
Vol 26 (5) ◽  
pp. 481-488 ◽  
Author(s):  
Jürg Hafner ◽  
Walter Lüthi ◽  
Holger Hänssle ◽  
Gerhard Kammerlander ◽  
Günter Burg
Keyword(s):  
Pressure Measurement ◽  
Compression Therapy ◽  
Interface Pressure

Pressure distribution under different types of blood pressure measurement cuffs

2016 ◽  
Vol 47 (1) ◽  
pp. 89-103 ◽  
Author(s):  
Shenela Naqvi ◽  
Muhammad Dawood Husain ◽  
Prasad Potluri ◽  
Parthasarathi Mandal ◽  
Philip Lewis
Keyword(s):  
Mechanical Properties ◽  
Blood Pressure ◽  
Pressure Distribution ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Principal Component ◽  
Cylinder Surface ◽  
Interface Pressure ◽  
Metal Cylinder ◽  
Different Types

The principal component of any non-invasive blood pressure measurement system is an inflatable cuff. Different types of fabrics are used for inflatable cuffs construction. In this study, sphygmomanometric blood pressure measurement using inflatable cuffs was simulated in Abaqus and validated through experimental results. The purpose of the simulation is to study the effect of variation in cuff fabric geometric and mechanical properties on pressure distribution and pressure transmission during blood pressure measurement by predicting the pressure at the interface of the blood pressure cuffs and a metal cylinder. Geometric and mechanical properties of the fabrics of four different cuff types were found experimentally. Interface pressure at the cuffs and metal cylinder surface was also found experimentally using Tekscan pressure sensing system for models validation. The results of the simulation showed that the interface pressure underneath the cuffs vary with variation in geometric and mechanical properties of their fabrics. The results of the simulation were found to be in good agreement with experimental findings. This research demonstrates that the pressure distribution under the cuffs is related to the cuffs' fabric geometric and mechanical properties. This means that variation in cuffs' fabric properties could ultimately incur variations in the blood pressure values of human subjects.

scholarly journals Optical fiber Bragg grating-instrumented silicone liner for interface pressure measurement within prosthetic sockets of lower-limb amputees

2017 ◽  
Vol 22 (08) ◽  
pp. 1 ◽  
Author(s):  
Ebrahim Al-Fakih ◽  
Nooranida Arifin ◽  
Gholamhossein Pirouzi ◽  
Faisal Rafiq Mahamd Adikan ◽  
Hanie Nadia Shasmin ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Fiber Bragg Grating ◽  
Pressure Measurement ◽  
Lower Limb ◽  
Bragg Grating ◽  
Interface Pressure ◽  
Lower Limb Amputees ◽  
Optical Fiber Bragg Grating

Accuracy of interface pressure measurement systems

1993 ◽  
Vol 15 (4) ◽  
pp. 344-348 ◽  
Author(s):  
V. Allen ◽  
D.W. Ryan ◽  
N. Lomax ◽  
A. Murray
Keyword(s):  
Pressure Measurement ◽  
Interface Pressure ◽  
Measurement Systems
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