D8.2 - Cenception and Development of an Expansion Sensor for the use in Limp Plethysmography
- SENSOR+TEST Conferences 2011
2011-06-07 - 2011-06-09
- Proceedings SENSOR 2011
- D8 - Medical III
- B. Budaker, C. Gier, U. Schneider - , Fraunhofer Institut (IPA), Stuttgart, D. Weigel, A. Keim - Hochschule Fulda, O. Benker - Gutmann Medizinelektronik E.K., Eurasburg (Germany)
- 661 - 663
This paper shows the development of a novel sensor system for the application in the field of diagnostics of blood vessels. The aim of “Limb Plethysmography” is to check for narrowing or blockage of blood vessesls in the arms or legs. For this procedure it is necessary to measure the change of scope at the individual limb. During a development project, which was conducted by Fraunhofer IPA together with Gutmann Medizinelektronik e.k., an older sensor principle, using quicksilver for the detection of the change of expansion, was replaced by a new sensor concept. The new sensor system uses a combination of fixed and flexible sensor - modules to detect the expansion of the outline of a limb. The core of the new sensor system is a hall sensor, which is integrated in a fixed module.
The aim was to build a complete new system which fulfils the requirements of easy use and applicability by health personnel. The sensor should not contain any toxic substances. And of course using a small hall sensor was necessary to meet the requirements of innovative design and minimal disturbances during the use of the sensor. In this paper we show the methodic development process of the sensor and the working concept of the final prototype.