Von Frey Hairs纤毛机械刺激针
型号:Von Frey Hairs
联系人:李胜亮
联系电话:18618101725
品牌:iitc
Von Frey Hairs纤毛机械刺激针
详细介绍
Von Frey纤毛机械刺激针Von Frey Hairs（Von Frey test触觉测量套件Von Frey filaments, Touch Test，纤维丝疼痛测试仪，纤维丝刺激针套件，触觉感应测量套装，纤毛机械刺激针Von Frey Hairs20根套装)
Von Frey纤毛机械刺激针Von Frey Hairs是由20根Von Frey Hairs纤毛机械刺激针组成，英文中称为Von Frey filaments 或 Semmes-Weinstein monofilaments，主要用于von Frey test评估皮肤的机械痛阈或触觉阈测量 ，是非常受欢迎的非侵入式实验器材。
Von Frey纤毛机械刺激针可提供0.008g-300g的触觉刺激力。（进行von Frey test使用方便，可对多种动物进行定量的机械痛阈或触觉阈测量，敬请来电咨询）
Von Frey Hairs纤毛机械刺激针尼龙丝的粗细及伸出长度决定提供触觉von Frey test刺激力的大小。实验时，根据实际情况选定粗细当得的触觉测试Von Frey Hairs纤毛机械刺激针，调节适当的伸出长度，垂直地刺激皮肤，可通过调节伸长、更换触觉尼龙丝调整刺激力大小，直到触觉测量尼龙丝弯曲。当啮齿类动物得爪受到一个机械痛阈或触觉阈，它们会缩回反射。该触觉测试可应用于大、小鼠的足底机械痛阈或触觉阈测量。
另外: Von Frey Hairs纤毛机械刺激针使用时可选配凿孔工作台，其触觉测量网筛孔是利用激光切冲而成的方形孔，尺寸为5×5mm2 ，触觉测量孔间距约为1mm，这对受试动物而言是一个舒适的环境，也便于操作人员观察动物的足底触觉感应区域。该凿孔台经涂层处理，便于清洁且不易被腐蚀。
人体触觉测试
包含凿孔台和鼠笼两部分，凿孔台又均匀分布、由激光切割的多孔板支架制作，光滑平整，对老鼠足底没有额外的刺激；
鼠笼为quan透明亚克力材质，上下通气，利于实验人员观察的同时，也给老鼠营造了一个安quan舒适的测试环境。
测痛实验大鼠固定器（老鼠面部、背部、腹部触觉测试实验固定笼）
可用于大鼠的面部、背部、腹部的刺痛实验；
可根据老鼠的体重订做合适的尺寸；
主要技术参数：
? Von Frey Hairs纤毛机械刺激针：no°20，校准偏差小于5%
? von Frey test刺激力：0.008-300g
Touch Test
The Semmes-Weinstein monofilaments provide an approximate logarithmic scale of actual force, and a linear scale of perceived intensity. They have a long history of effective use in clinical settings, and can be used to diagnose pathologies of hyper- or hypo-aesthesia. Subsets within the set of 20 probes distinguish pathologies on different parts of the body (foot, hand, lip, cheek,etc.).
Semmes-Weinstein Von Frey Aesthesiometer for touch assessment
Features
Set of 20 monofilaments based on the Semmes-Weinstein monofilament set
Features retractable filaments to protect the filament
Allows the researcher to carry a few in a pocket
The Semmes-Weinstein monofilaments provide an approximate logarithmic scale of actual force, and a linear scale of perceived intensity. They have a long history of effective use in clinical settings, and can be used to diagnose pathologies of hyper- or hypo-aesthesia. Subsets within the set of 20 probes distinguish pathologies on different parts of the body (foot, hand, lip, cheek,etc.).
Operating Principle When the tip of a fiber of given length and diameter is pressed against the skin at right angles, the force of application increases as long as the researcher continues to advance the probe, until the fiber bends. After the fiber bends, continued advance creates more bend, but not more force of application. This makes it possible for the researcher using a hand-held probe to apply a reproducible force, within a wide tolerance, to the skin surface.
Pre-Clinical Use Rodents exhibit a paw withdrawal reflex when the paw is unexpectedly touched. The Touch Test? Sensory Evaluat
