JB-LB冷熱板測痛儀

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<p style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;text-indent:0px;background-color:#FFFFFF;"><span style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;">
<p style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;text-indent:0px;background-color:#FFFFFF;"><span style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;">一、概述：<span style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;">      目前，對急性疼痛鎮痛藥物的篩選實驗方法（物理方法）基本是熱板實驗，甩尾反射實驗或動物足底觸痛照射實驗，但這些都是動物正常的刺激反應閾值，屬于一種生理疼痛。生理性疼痛與病理性疼痛是有著本質上的區別，生理性疼痛是一種為生存進行自我保護的一套報警系統，而病理性疼痛是一種妨礙生存的疾病。由于兩種疼痛的表現與發生機制不同，其對于鎮痛藥物的研究實驗方法也不同，如有些鎮痛藥物對生理、病理性疼痛均有其較好的鎮痛作用。但有些藥物只對生理性疼痛有作用，所以用不同的實驗方法實驗儀器可篩選出作用點不同的藥物。冷熱板測痛儀是一種能將生理性疼痛實驗與病理性疼痛實驗在同一臺儀器上完成的儀器。
<span style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;">      冷熱板測痛儀板面溫度設定為4℃時，對造成坐骨神經病理性疼痛模型的動物，受試藥物能很明顯地改變其在冷板上的抬足時間和次數，當板面溫度設定為55℃時，對動物的生理性痛閾的高低能進行準確的測量，以此判定受試藥物的鎮痛類型和效果。該實驗方法的優點是動物是在無約束狀態下進行測試，避免了人為干擾及對動物的傷害，因其操作的簡單方便、指標的明確及能更準確反映動物的痛覺行為而受到實驗人員的喜愛。
<span style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;">      該儀器除有設定溫度寬（0℃~70℃），溫控精度高，計時誤差?。ㄕ`差0.01秒）的基本要求外，并有液晶屏中文顯示、自帶微型打印機、USB微機接口和動物盛裝快捷，數據顯示齊全、觀察動物方便，自動累計抬足時間和抬足次數等優點，是一種真正一機兩用的鎮痛藥物實驗儀器。
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<p style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;text-indent:0px;"><span style="font-family:"vertical-align:baseline;">二、技術參數：<p style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;text-indent:0px;"><span style="font-family:"vertical-align:baseline;">1<span style="font-family:"vertical-align:baseline;">、溫度設定：<span style="font-family:"vertical-align:baseline;">0<span style="font-family:"vertical-align:baseline;">℃<span style="font-family:"vertical-align:baseline;">~70<span style="font-family:"vertical-align:baseline;">℃<span style="font-family:"vertical-align:baseline;">   <span style="font-family:"vertical-align:baseline;">調整步長為<span style="font-family:"vertical-align:baseline;">0.1<span style="font-family:"vertical-align:baseline;">℃<span style="font-family:"vertical-align:baseline;"> <p class="MsoNormal" style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;text-indent:0px;"><span style="font-family:"vertical-align:baseline;">2<span style="font-family:"vertical-align:baseline;">、溫度波動：≤±<span style="font-family:"vertical-align:baseline;">0.1<span style="font-family:"vertical-align:baseline;">℃<span style="font-family:"vertical-align:baseline;"> 
3<span style="font-family:"vertical-align:baseline;">、計時誤差：<span style="font-family:"vertical-align:baseline;">0.01<span style="font-family:"vertical-align:baseline;">秒<span style="font-family:"vertical-align:baseline;"> 
4<span style="font-family:"vertical-align:baseline;">、<span style="font-family:"vertical-align:baseline;">25<span style="font-family:"vertical-align:baseline;">℃降至<span style="font-family:"vertical-align:baseline;">4<span style="font-family:"vertical-align:baseline;">℃時間：＜<span style="font-family:"vertical-align:baseline;">5<span style="font-family:"vertical-align:baseline;">分鐘<span style="font-family:"vertical-align:baseline;">;
5<span style="font-family:"vertical-align:baseline;">、<span style="font-family:"vertical-align:baseline;">25<span style="font-family:"vertical-align:baseline;">℃升至<span style="font-family:"vertical-align:baseline;">55<span style="font-family:"vertical-align:baseline;">℃時間：＜<span style="font-family:"vertical-align:baseline;">3<span style="font-family:"vertical-align:baseline;">分鐘<span style="font-family:"vertical-align:baseline;">;
6<span style="font-family:"vertical-align:baseline;">、冷板面積：直徑<span style="font-family:"vertical-align:baseline;">170mm
7<span style="font-family:"vertical-align:baseline;">、觀察箱尺寸：直徑<span style="font-family:"vertical-align:baseline;">170mm<span style="font-family:"vertical-align:baseline;">，高度<span style="font-family:"vertical-align:baseline;">220mm
8<span style="font-family:"vertical-align:baseline;">、<span style="font-family:"vertical-align:baseline;">5<span style="font-family:"vertical-align:baseline;">寸液晶觸摸屏中文顯示<p class="MsoNormal" style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;text-indent:0px;"><span style="font-family:"vertical-align:baseline;">9、屏幕分辨率：800x600<p class="MsoNormal" style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;text-indent:0px;"><span style="font-family:"vertical-align:baseline;">10、帶分組功能1~99組<p class="MsoNormal" style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;text-indent:0px;"><span style="font-family:"vertical-align:baseline;">11、記錄參數：組別、溫度、實驗時間、痛閾時間、抬腳次數、單次抬腳時間、累計抬腳總時間
12、帶USB口將數據導入U盤
<p class="MsoNormal" style="font-family:"font-size:16px;vertical-align:baseline;color:#666666;background-color:#FFFFFF;text-indent:0px;"><span style="font-family:"vertical-align:baseline;">13<span style="font-family:"vertical-align:baseline;">、內電時鐘<span style="font-family:"vertical-align:baseline;">
14<span style="font-family:"vertical-align:baseline;">、觸控按鈕、腳踏開關觸發<span style="font-family:"vertical-align:baseline;">
<span style="font-family:"vertical-align:baseline;">15<span style="font-family:"vertical-align:baseline;">、可選配<span style="font-family:"vertical-align:baseline;">RS232<span style="font-family:"vertical-align:baseline;">外置熱敏打印機進行數據打印報告<span style="font-family:"vertical-align:baseline;">
16<span style="font-family:"vertical-align:baseline;">、使用環境濕度：<span style="font-family:"vertical-align:baseline;"> 20%RH<span style="font-family:"vertical-align:baseline;">～<span style="font-family:"vertical-align:baseline;">80%RH
17<span style="font-family:"vertical-align:baseline;">、電源：<span style="font-family:"vertical-align:baseline;">110V~AC220V<span style="font-family:"vertical-align:baseline;">±<span style="font-family:"vertical-align:baseline;">10%   50Hz
18<span style="font-family:"vertical-align:baseline;">、輸入功率：<span style="font-family:"vertical-align:baseline;">180W
19<span style="font-family:"vertical-align:baseline;">、整機尺寸：<span style="font-family:"vertical-align:baseline;">260*260*155mm