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大小鼠痛觉测量仪,小动物痛觉测量仪

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  • 大小鼠痛觉测量仪,小动物痛觉测量仪
  • 2026年02月11日
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    小动物电子测痛仪也叫做电子触觉测试仪,用于对大鼠、小鼠足部进行轻触,来测量老鼠的机械痛阈值或触觉阈值。

    小动物电子测痛仪是专为大鼠、小鼠机械疼痛研究设计的精密仪器,集成了高灵敏度传感器与数据采集管理软件,为神经科学、药理学及疼痛病理学研究提供精确、可重复的疼痛评估手段,助力科学家深入探索疼痛机制及开发新型镇痛疗法。

    用于测试触觉灵敏度的经典仪器是Semmes-Weinstein纤毛机械刺激丝套装。但是Semmes-Weinstein纤毛机械刺激丝的方法非常耗时耗力,一个测试实验需要使用多个不同纤维丝进行多次和反复足底刺激。电子触觉测试仪可用来替代传统的Semmes-Weinstein(Von Frey Hairs)纤毛机械刺激针,可直接测得动物的机械痛阈和触觉阈测量,不需要进行反复的测试和繁杂的计算。设备轻巧易用,测量精确。

    老鼠感觉到爪子被刺激时,会做出缩足反应。电子触觉测试仪使用测试探针对老鼠足底进行触觉刺激,力度由小到大逐渐增加力度,通过判断老鼠的缩足反应,来采集和分析老鼠的触觉阈值。

    电子触觉测试仪相比传统方法的优势特点:
    · 使用电子触觉测试仪进行一个测试实验,只需要进行一次足底刺激即可得到准确的结果;
    · 数据可直接用于统计分析,能够节省很多的精力和时间;
    · 测量精度高,测试力度能够读取到1000g以内的具体数值,精度可达0.1g;
    · 不需要进行繁杂的统计和计算;
    · 使用一个标准直径的刚性探针进行测试,能够避免不同力度纤维丝具有不同的直径而产生的触觉误差;
    · 能够避免因为反复多次的测试对动物耐受力的影响,减小测试误差;
    产品细节图片1
    型号:38450

    产品特点:
    · 测试探针被固定在测试手柄上,通过测试探针自下而上对老鼠足底的刺激,老鼠会在刺激达到最大耐受力度时抬脚躲避,此时可通过脚踏开关来判断测试结果;
    · 测试主机会显示和记录测试结果,包括最大测试力度和动物反应时间;
    · 实验人员可根据本次测试老鼠的活动情况,接受或者拒绝本次测试结果;
    · 被接受的测试结果会记录在主机中,可传到电脑进行统计;
    · 为了方便测试,测试手柄端部采用了棱镜式设计,方便进行定位和瞄准;
    · 设备中包含有助于稳定探针加力速率的软件工具;

    主要参数:
    · 最大适用力度:1000g
    · 分辨率:0.1g
    · 自动记录动物反应
    · 辅助用户控制探针的加力速率
    · 采用棱镜设计,有助于定位目标

    电子触觉测试仪中使用的金属探针与经典的动态足底测试仪 Aesthe-siometer 37450 中使用的金属探针相同,可以对两种仪器的结果进行一致性比较。

    产品细节图片2
    带棱镜式设计的手柄,在进行“接触式刺激”
    产品细节图片3

    大鼠和小鼠测试探针细节

    产品细节图片4
    小鼠测试探针细节

    测试手柄的主要特色:
    具备有效的峰值检测器,自动捕捉和记录测试过程中施加的最大力度值;
    具备可靠的自动检测动物反应功能;
    具备辅助稳定探针加力速率的功能;

    数据监测和存储:
    测试主机具有存储和查看功能;
    可将数据导出到电脑进行数据统计和分析;
    可导出Excel或文本格式;

    产品细节图片5
    软件中可查看施加的力(红线)、所需的目标力率(蓝线)和峰值检测

    基本配置:
    带棱镜和刺激传感器的测试手柄,测试主机,脚踏板、软件和USB电缆。
    产品细节图片6

    选配:

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    测试支架
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    产品细节图片11
    大鼠、小鼠测试笼

    参考文献:
    【1】Pain Relieving and Neuroprotective Effects of Non-opioid Compound, DDD-028, in the Rat Model of Paclitaxel-Induced Neuropathy
    L Micheli, R Rajagopalan, E Lucarini, A Toti, C Parisio… - …, 2021 - Springer
    【2】Dexpramipexole blocks Nav1. 8 sodium channels and provides analgesia in multiple nociceptive and neuropathic pain models
    M Urru, M Muzzi, E Coppi, G Ranieri, D Buonvicino… - Pain, 2020 - journals.lww.com
    【3】The Anti-Arthritic Efficacy of Khellin Loaded in Ascorbyl Decanoate Nanovesicles after an Intra-Articular Administration
    G Vanti, L Di Cesare Mannelli, L Micheli, L Cinci… - Pharmaceutics, 2021 - mdpi.com
    【4】Key role of gut microbiota in anhedonia-like phenotype in rodents with neuropathic pain
    C Yang, X Fang, G Zhan, N Huang, S Li, J Bi… - Translational …, 2019 - nature.com
    【5】Ameliorative effect of imperatorin in chemically induced fibromyalgia: role of NMDA/NFkB mediated downstream signaling
    A Kaur, L Singh, N Singh, MS Bhatti, R Bhatti - Biochemical pharmacology, 2019 - Elsevier



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    图标文献和实验
    该产品被引用文献

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    ... The fine-touch sensitivity of 19 locations on the penis was measured using Semmes-Weinstein
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    Comparison of dynamic (brush) and static (pressure) mechanical allodynia in migraine
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    T Ogawa, T Suzuki, N Oishi, X Zhang, I Naert, K Sasaki - Odontology, 2011 - Springer
    ... The TDT of each tooth was measured by calibrated monofilaments (Touch-Test ® ,
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    [HTML] Relative sensory sparing in the diabetic foot implied through vibration testing
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    Disease management for the diabetic foot: effectiveness of a diabetic foot prevention program to reduce amputations and hospitalizations
    LA Lavery, RP Wunderlich, JL Tredwell - Diabetes research and clinical …, 2005 - Elsevier
    ... We identified sensory neuropathy from evaluation with a 10 gm Semmes-Weinstein
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