Von Frey 纖維絲（以德國生理學家 Max von Frey 的名字命名1852-1932年）最初是由不同直徑的動物和人類毛發制成的現在是由尼龍單絲制作 不同的型號具備不同的抗彎能力。纖維絲垂直接觸皮膚逐漸增加力直到它彎曲由此確定施加力的大小。


· 基于 Semmes Weinstein 單絲套裝配備了可以旋轉裝置保護外殼可折疊收納；
· 提供實際力度的標度和感知強度的線性標度；
· 在臨床環境中的成功使用有著很久的歷史可用于診斷感覺過敏或感覺減退； 
· 根據不同的應用和測試部位可選擇不同的套裝腳、手、唇、臉頰等；

主要特點 
· 20 根纖維絲套件；
· 分級系列尼龍單絲帶不同的顏色編碼；
· 旋轉保護外殼有利于收納和攜帶；


工作原理

當特定長度和直徑的纖維絲以垂直角度壓在皮膚上時研究人員繼續施加壓力直到纖維絲彎曲。纖維絲彎曲后繼續前進會產生更多的彎曲但不會產生更多的壓力。 

這一原理使研究人員可以在一個寬泛的公差范圍內使用纖維絲對皮膚施加一個可重現的力。 

20種不同規格

可選擇測試支架和測試鼠籠

 
為了方便用Von Frey 纖維絲刺激足底表面我們提供了一個90x38cm的穿孔金屬平臺。激光穿孔形成 5X5mm 尺寸的方孔網格；金屬格柵約 1mm寬對動物舒適也有利于實驗人員查看老鼠爪子的動作情況。 

擱板涂有聚合物樹脂易于清潔。 

配合動物圍欄（測試鼠籠）使用可將3只大鼠或12小鼠同時約束在測試平臺上進行測試實驗。

測試平臺

測試平臺

十字測試網格

標準型測試支架與電子式測痛儀

電子式觸覺疼痛測量儀

· 電子觸覺測試儀可用來替代傳統的Semmes-Weinstein（Von Frey Hairs）纖毛機械刺激針；

· 可直接測得動物的機械痛閾和觸覺閾測量不需要進行反復的測試和繁雜的計算。設備輕巧易用測量精確；

型號38450

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