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研究生:施啟明
研究生(外文):Chi-Ming Shih
論文名稱:主動散熱型輪椅座墊之開發與其散熱效應之研究
論文名稱(外文):The Research and Fabrication of a Heat Removable Wheelchair Cushion
指導教授:蔚順華蔚順華引用關係游忠煌
指導教授(外文):Shun-Hwa WeiChung-huang Yu
學位類別:碩士
校院名稱:國立陽明大學
系所名稱:復健科技輔具研究所
學門:醫藥衛生學門
學類:復健醫學學類
論文種類:學術論文
論文出版年:2004
畢業學年度:92
語文別:中文
論文頁數:72
中文關鍵詞:輪椅座墊壓瘡溫度熱管
外文關鍵詞:CushionPressure UlcerTemperatureHeat Pipe
相關次數:
  • 被引用被引用:4
  • 點閱點閱:375
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  • 收藏至我的研究室書目清單書目收藏:0
「悶熱」是許多長時間使用輪椅座墊者的共同抱怨,許多可能罹患壓瘡問題的高危險群,因為這樣的抱怨而不願使用座墊。雖然壓瘡發生的主要原因是長時間的壓力、剪力以及摩擦所造成;然而根據研究顯示,皮膚溫度的高低也是壓瘡發生的影響因子之一。
座墊是長時間的輪椅使用者用來預防壓瘡發生的重要器材,過去的研究偏重探討使用時壓力分佈的情形,少有針對各種材質與造型的輪椅座墊研究其使用時座面溫度高低的比較。雖然有些輪椅座墊選用的材料,可某些程度的延緩座面溫度升高的速度,然而長時間使用時仍難以避免溫度的上昇。因此,本研究的目的在設計一款主動散熱型輪椅座墊,並且與四款市售座墊(氣囊型、固態凝膠型、蜂巢型、泡棉型)以及一款曾發表過的主動散熱型輪椅座墊,於使用時進行座面溫度變化的比較。
本研究所開發的主動散熱型輪椅座墊「Cool Fit」,座墊本體材料選用彈性泡棉與導熱凝膠,導熱系統與散熱器則選用熱管(Heat Pipe)、銅箔導熱板與熱電致冷片(TEC)、散熱器(Heat Sink)及風扇。
一名健康的測試者協助進行本研究進行各個座墊樣本於乘坐時的溫度測試。利用記錄器(Data Logger)及五條偵測溫度的K型熱電耦線( K-typed thermocouple),偵測測試者乘坐時座墊表面及實驗室內的溫度資料,經由記錄器傳送至電腦進行分析製圖。
測試的結果分為兩部分顯示;Cool Fit散熱能力測試方面:在未接觸人體體溫的室溫環境下,啟動主動散熱型輪椅座墊的電子散熱系統後,能於1分鐘內開始降低座墊表面的溫度,並於供電的60分鐘內持續降低座面溫度達攝氏9度以上,因而使座面溫度低於室溫;即使關閉散熱系統後,亦能減緩座面溫度上升的速度。
「各座墊使用時座面溫度變化比較」方面:在使用者乘坐的情況下,持續啟動座墊散熱功能將使座墊表面溫度明顯低於其他座墊。
為瞭解銅質的導熱元件是否將造成座面壓力集中的可能,本研究另外利用壓力偵測墊,進行Cool Fit座墊與傳統輪椅帆布座墊的座面壓力比較,結果證實導熱元件並未造成座面壓力的集中。
本研究證實:應用具導熱效果的凝膠材料、熱管技術與熱電制冷晶片方式開發的主動散熱型輪椅座墊,比多種市售更能有效降低使用時座面的溫度。將來值得進一步設計自動溫度控制開關以增加座墊維持恆溫的能力,並節省電能耗費。
關鍵字:壓瘡、輪椅座墊、溫度變化、熱管
Sultry is the most common complain of prolong wheelchair users. Many of them are high risk population of developing pressure ulcer and unwilling to use cushion due to complain of muggy. Although the main causes of pressure ulcer are long period of compression, shearing force and friction, but some research indicated that skin temperature is also one of the factors contribute to pressure ulcer development.
Cushion is the most important seating device there is to prevent pressure ulcer for prolong wheelchair users. Previous researches emphasize on pressure distribution concerns and very few focus on the comparison of temperature factor between different properties of cushion materials. Although some cushion materials have some degree of effect to slow down the rise of temperature, however it is still inevitable after long period of sitting, thus the purpose of this study is to design a cushion able to remove heat actively. Including surface temperature comparison between four on market products (ROHO, StimuLite, Biofoam, HR foam) and a once published active heat radiating cushion (CoolMate-C ).
The cushion Cool Fit developed from this study is made of HR foam in base of cushion, heat conductible gel in surface of cushion, and heat pumping system. The heat pumping system consist of heat pipe, TEC, heat sink and fan.
A healthy subject proceeded through all of the sitting tests of temperature measurements. Data logger and five K-typed thermocouples were used to test the temperature of the room and cushion surface, the data was then analyzed through computer via the logger.
The results where shown that the ability to remove heat. Cool Fit is able to reduce surface temperature within first minute of the course and maintain at least 9 degrees Celsius lower than initial condition for 60 minutes after starting the electric heat pumping system. This result allow the surface of cushion to maintain at a temperature below room temperature and able to slow down the rise of temperature after turn off power source. Second, when comparison of change in temperature between different products shows that Cool Fit is able to remove heat efficiently in compare to other products while the heat pumping system is turned on.
1. Kokate JY. (1995): ‘Temperature-modulated Pressure ulcers: a porcine model’, Archives of Physical Medicine & Rehabilitation, 76, pp. 666-673
2. Seymour R. J. and Lacefield, W. E. (1985): ‘Wheelchair cushion effect on pressure and skin temperature, Archives of Physical Medicine & Rehabilitation, 66, pp. 103-108
3. Fisher, S. V., Szymke, T. E., Apte, S. Y. and Kosiak, M. (1978): ‘Wheelchair cushion effect on skin temperature’, Archives of Physical Medicine & Rehabilitation, 59, pp. 68-72
4. Patterson, R. P. and Fisher, S. V., (1980): ‘Pressure and temperature patterns under the ischial tuberosities’ Bull Prosthetic Res., 10, pp.5-11
5. Ferrarin M., and Ludwig N, (2000): ‘Analysis of thermal properties of cushion with thermography’ Medical & Biological Engineering & Computing, 38, pp31-34
6. 曾國禎,黃秉鈞, (2003) : ‘具調溫功能之床墊研發’,全國博碩士論文資訊網. 91NTU00489040
7. 林家賢,鄔蜀威, (2000): ‘新型輪椅座墊之設計與有限元分析’, 全國博碩士論文資訊網. 88NCU00489100
8. 內政部統計處(2004): ‘社18--臺閩地區身心障礙者人數’,內政統計資料網.http://www.moi.gov.tw/W3/stat/home.asp
9. 游紋英, 李世代, (2002): ‘長期照護機構住民壓瘡盛行率及危險因素之探討-以台北地區之養護機構為例. 全國博碩士論文資訊網. 90NTCN0712002
10. Duncan Shirreffs Bain, Martin Ferguson-Pell,(2002): ‘Remote monitoring of
sitting behavior of people with spinal cord injury.’, Journal of Rehabilitation
Research and Development Vol. 39 No. 4, 2002 pp. 513-520
11. James S.W., Jerome Sacks, Raslan Othman, Alexander Z.R., Bernard Nemchausky, Rani Chintam , John S.W. (2002), ‘A database of self-reported secondary medical problems among VA spinal cord injury patients: Its role in clinical care and management’ Journal of Rehabilitation Research and Development Vol. 39 No. 1, January/February 2002.
12. Schmeler, MR & Buning, ME (2000), ‘Properties of Seat Cushions.’ , A Research
Slide Lecture from the website of Wheelchair University http://www.wheelchairnet.org
13. Bursick,T. et al, June (2000), ‘Functional Outcomes of Wheelchair Seating and Positioning in the Elderly Nursing Home Population’ , A Research Slide Lecture
from the website of Wheelchair University .http://www.wheelchairnet.org.
14. Brienza & Geyer, (2000), ‘Support Surface Technology.’ A Research Slide Lecture from the website of Wheelchair University http://www.wheelchairnet.org.
15. Douglas A. Hobson, (2000), ‘Principles of Pressure Management’ A Research
Slide Lecture from the website of Wheelchair University (http://www.wheelchairnet.org.)
16. E. Call, R. Jones, B. Levy, B. Oberg, (2003) ‘Classical Thermodynamics of
Wheelchair Cushions and Otto Bock ComforT Temperature Intervention.’ Nineteenth International Seating Symposium. pp.193-197.
17. Richard Salcido, Fisher S.B., Donofrio J.C., Mark Bieschke, Charles Knapp, Rongzhao Liang, Edmund K. LeGrand, John M. Carney. (1995) ‘An animal model of computer-controlled surface pressure delivery system for the production of pressure ulcers.’ Journal of Rehabilitation Research and Development Vol. 32 No. 2, pp.149-161.
18. Enertron co. Ltd. (2000) ‘Thermoelectric Cooling - The Basics.’
http://www.enertron-inc.com/Library.html
19. Enertron co. Ltd. (2001) ‘Heat Pipe Selection.’ http://www.enertron-inc.com/pdf/How to select a heat pipe.pdf
20. Enertron co. Ltd. (2001) ‘Things to Consideration when Designing with Heat Pipe’ http://www.enertron-inc.com/pdf/Things to Consider When Designing With Heat Pipes.pdf
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