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Pulsimeter Sensor Using Hall Device_Sangji Univ.
Korea Health Industry Development Institute (KHIDI) South Korea flag South Korea
Abstract ID:
A Pulsimeter sensor using a hall device is characterized by comprising a skin-contacting part, formed with a magnetic material to be contacted to a skin to examine the pulse...
Contact Yong U Kim
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Key Technology Highlights




A pulsimeter sensor using a hall device




A pulsimeter sensor using a hall device is characterized by comprising a skin-contacting part, formed with a magnetic material to be contacted to a skin to examine the pulse; a pulse-sensing part, located some distance over the skin-contacting part and formed as an array type with at least one hall device; and a spatial part, located between the skin-contacting part and the pulse-sensing part.




Minimize the time to search for the locations of the pulse




By producing a pulse-sensing part of an array type using a hall device as a minute unit cell, it is possible too minimize the time to search for the locations of the pulse, measure the pulse which the conventional pressure sensors could not measure, and understand the spatial characteristics of the pulse completely.




Various applications as a wearable pulsimeter




A hall device as a magnetic sensor can be diminished in size by a semi-conductor lithography process, it has little measuring fault according to the movements of the examine, and it is possible to design various applications such as wrist watches, rings and IC chips as a wearable (portable) pulsimeter.







Technology Platform




The core technology of Sangji University is to provide a promising pulsimeter sensor using hall device that is formed a pulse-sensing part array with a hall device as a magnetic sensor, over the skin-contacting part which consists of a magnetic material.




Most medical detecting sensors for the pulse are the invasive sensors, which detect the changes in the blood pressure by injecting tubes into the blood vessels, or the noninvasive sensors using pressure sensors. However, the conventional arts use pressure sensors such as a piezoelectric device, and have the any problem that is hard to understand the spatial characteristics (three-dimensional configurations) of the pulse and is a limitation on the degree of integrity for pressure-sensors. Also, only several pressure sensors cannot search the center of the radial artery properly, and it takes too long to search the locations of the pulse.




Background and unmet needs




Currently, most medical detecting sensors for the pulse are the invasive sensors, which detect the changes in the blood pressure by injecting tubes into the blood vessels, or the noninvasive sensors using pressure sensors.




Particularly, the pulsimeter sensor using pressure sensors has been researched many times due to its noninvasivity and the Korean Patent Publication Number 10-2001-0028668 regarding the automatic pulsimeter, and the Korean Utility Registration Number 20-0358195 regarding the pulse wave measuring device et al. are some example.




However, the conventional arts use pressure sensors such as a piezoelectric device, and have any problems. First, it is possible to understand the time characteristics to some extent by measuring the changes in the pulse pressure (wave form) with the pressure sensors, but it is hard to understand the spatial characteristics (three-dimensional configurations) of the pulse such as the death, the area, the length of the pulse and so on, which have been recognized more important in the traditional pulse diagnosis. Second, products using the pressure sensors to understand the spatial characteristics of the pulse have been manufactured recently, but there is a limitation on the degree of integrity for pressure-sensors. Therefore, there is nothing but to get minimum spatial information about the pulse through an excess interpolation. Third, to measure the spatial characteristics of the pulse properly, sensors should find out the location of the radial artery accurately. However, only several pressure sensors cannot search the center of the radial artery properly, and it takes too long to search the locations of the pulses. Fourth, because of the nature of the pressure sensors of having a weakness in movement noises, it is impossible to measure pulses with wearing themselves, and this characteristic has an application limit to a portable apparatus. Lastly, most pressure sensors have been equipped with measuring means of a rigid body, and applying pressure on measurement of a pulse generates a pain.




Discovery and Achievements




The pulsimeter sensor of Sangji University has been developed by manufacturing a pulse-sensing part array with a hall device as a magnetic sensor, over the skin-contacting part which consists of a magnetic material.




The pulsimeter sensor using hall device increase the integrity of sensor, enables to understand the spatial characteristics of the pulse which cannot be determined by the conventional pressure sensors, minimize the time for searching the pulse, and is applicable widely to portable pulsimeters and the like.




Furthermore, while the conventional pulsimeters using pressure sensors have a problem to generate a pain by applying into a skin, the pulsimeter sensor using hall device receives the pulse through a soft magnetic material of a skin-contacting part, and it does not generate a pain.



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FEATURED
Last Updated Jun 2016
Technology Type MEDICAL DEVICE
Phase of Development EARLY STAGE
GOVERNMENT INSTITUTE