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題名 | 多通道壓力、溫度及濕度微處理量測系統之研發=A Multi-channel Microprocessor System for Interface Pressure, Temperature and Humidity Measurement |
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作者 | 邱毓賢; 鍾高基; 侯春茹; Chiou, Yu-sheng; Chung, Kao-chi; Hou, Chuen-ru; |
期刊 | 中華醫學工程學刊 |
出版日期 | 19990900 |
卷期 | 19:3 1999.09[民88.09] |
頁次 | 頁169-178 |
分類號 | 410.1644 |
語文 | chi |
關鍵詞 | 壓瘡; 壓力; 溫度; 濕度; 微處理感測系統; Pressure sores; Pressure; Temperature; Humidity; Microprocesasor ensing system; |
中文摘要 | 不論在國內外,壓瘡一直都是醫療及居家護理相當嚴重的併發症,因此,發展壓 瘡預防的新醫療科技為臨床、醫療、醫工及復健工程人員面臨的重大挑戰。臺灣由於地理環 境屬於亞熱帶,氣溫及溼度整年偏高,再加上居家環境也不甚良好,因此壓瘡的罹患率甚高 。不適當的介面支撐為壓瘡產生的主要因素,所以必須經常注意身體與床、墊之接觸介面壓 力調節,以保持適當溫度、乾燥、通風,期使壓瘡早日癒合或預防壓瘡的形成。然而目前對 壓瘡的危險因子評估仍以主觀非科學量化的傳統方法,其效率與治療程度皆相當有限。故研 發適當的量測系統以提供客觀量化的評估,不但可以預防壓瘡的產生與改善壓瘡的癒合,亦 可減輕醫療照顧之負擔及社會資源的浪費。因此,本研究乃針對壓瘡產生的主要壓力、溫度 及濕度外在因子,設計及研發單晶片微處理量測系統,提供多通道感測器輸入介面,以因應 量測不同身體部位與床、墊、鞋墊、義肢及裝具之介面壓力、溫度及濕度的需求。本系統的 特殊功能性設計包括:多元化感測器量測模組、可變訊號取樣頻率、資料儲存與傳輸,並經 由人性化的人機介面設計,提供醫療復健人員簡易的使用、操作及設定。經由嚴謹地感測器 校正實驗探討,系統化地歸納出介面壓力、溫度及濕度的相對應量化指標,期能提供有效的 壓瘡預防。 |
英文摘要 | Pressure sores continue to be a very severe complication in medical and nursing cares as well as rehabilitation management. Research and development of effective medical technology for pressure sore prevention remains a great challenge for clinicians, biomedical and rehabilitation engineers. Improper body supports are the major factor for pressure sore formation or influencing sore healing, therefore, pressure relief at the body-support interface, low temperature and humidity regulating should be focused. However, conventional methods, which are considered to be ineffective and low efficiency, are still used in subjective evaluation. This project was to design a multi-channel microprocessor measuring system for interface pressure, temperature and humidity to provide systematic quantification of body-support interface. With flexible and miniature properties, force sensing resistor, thermocouple and PAMPS polymer film are used for interface pressure, temperature, and humidity sensors, respectively. These sensors are compliant with the interface and easy to be placed into the desired sites, particularly for those at the bony prominence region. The microprocessor measuring system consists of microprocessor (AT89C52), A/D converter (AD574A), multiplexier (3 pairs of 8 to 1), IO (8255IC), timing and number counters. Sensors are calibrated to provide the transfer function for pressure, temperature and humidity quantifiers to measured voltages. The pilot study shows that the sensors in combinations or with a single setting provide very useful data to delineate the objective information for pressure sore prevention. The microprocessor system is interfaced to PC for data storage, analysis and manipulation. This system design could be applicable to interface quantification for patients with bed-ridden, wheelchair-bounded, prosthesis socket and in- shoe. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。