動物腳底刺痛測定儀 Dynamic Plantar Aesthesiometer

產品型號: 37550
廠牌名稱: Ugo basile
腳底刺痛測定儀是用以測量實驗動物對物理性刺激的反應。針刺裝置位於動物足底,按下開關,等待動物縮回受測爪,儀器自動記錄針刺強度和持續時間。實驗數據會即時顯示在觸控螢幕上,也可存入隨身碟中,或通過USB數據線輸入至電腦中。與結果主觀的手持式Von Frey不同,Dynamic plantar test可顯著降低操作者熟練度不同所造成的人為差異



  • 最大戳刺力道提升至100克(上一款機型為50克)
  • 可更改的戳刺偵測閾值,避免動物轉身或換姿勢造成誤差
  • 戳刺抬腳偵測可改為手動記錄,讓您可以自行記錄與判定動物是否受戳刺影響
  • 儀器現在可接收或發送TTL訊號,讓您可以搭配其他硬體並進行更複雜的實驗設計
  • 全新的操作介面與觸控螢幕,操作更容易上手


腳底刺痛測定儀是用以測量實驗動物對物理性刺激的反應。針刺裝置位於動物足底,按下開關,等待動物縮回受測爪,儀器自動記錄針刺強度和持續時間。實驗數據會即時顯示在觸控螢幕上,也可存入隨身碟中,或通過USB數據線輸入至電腦中。與結果主觀的手持式Von Frey不同,Dynamic plantar test可顯著降低操作者熟練度不同所造成的人為差異


The Dynamic Plantar Aesthesiometer was designed to automate the assessment of “touch sensitivity” on the plantar surface of rats or mice and comes ready with all necessary accessories to work with both Mice and Rats.  It is known by some as the Electronic Von Frey or Plantar Von Frey instrument.  

At each paw withdrawal, the Dynamic Plantar Aesthesiometer (DPA) automatically detects and records latency time, and actual force at the time of paw withdrawal reflex. A movable force actuator is positioned below the plantar surface of the animal and the desired force and force speed (ramp) is applied, as preset by the operator. A Von Frey–type 0.5mm rigid filament exerts increasing force, until the animal twitches its paw.  

The DPA encompasses:

  • a movable touch-stimulator unit, well proven in previous model, complete with filament actuator and adjustable angled-mirror
  • a microprocessor controlled electronic unit, of new design provided with graphic display, internal memory for data storage, USB key and optional printer
  • a large testing surface (perforated metal platform)
  • a new modular animal enclosure, offering from 3 to 12 spaces, convenient to hold rats and mice

Data may be easily ported to the memory stick or directly to computer.

The Ugo Basile Dynamic Plantar Aesthesiometer 37550 is the quickest and most accurate way of delivering a mechanical stimulation and measuring a response, all automatically!


- Maximum Force is 100g (formerly 50g)

- Touching force and touching pause is adjustable (to control the stimulus approaching phase)

- Paw withdrawal detection is automatic, but can also be manually detected, depending on the experimenter preference

- TTL I/O for trigger input and output

- Embedded hard disk so that the USB key is used for data export/import only


Readout and commands Via 4.3" color touch screen
TTL/IO input and output TTL signal
Power Requirements Universal input 100-240 VAC, 50-60 Hz, 30W
Start experiment via push buttons on the touch unit, icon on the touch screen, or TTL input  
Stop experiment via push buttons on the touch unit, icon on the touch screen, cut-off, or TTL input  
Force Range 0.3 to 100 grams, in 0.1g steps
Force Increasing Rate (ramp) adjustable in the interval 0 to 50 seconds, in 1 s steps
Latency Time displayed on the graphic display, in 0.1s steps
Data Portability to PC Via USB pen drive provided, as csv format export file
Calibration via calibration weights provided
Operating Temperature 10° to 40° C
Sound Level <45dB
Total Weight 10Kg
Shipping Weight 13Kg approx.
Dimensions 135 (w) x 40 (d) x 50 (h) cm (required space on table; all parts)
Packing Dimensions 98x49x47cm


Impaired cutaneous sensation is usually first manifested in a loss of light touch detection. So “mechanical” stimulation has a long history of effective clinical use to diagnose pa-thologies of hyper- or hypo-aesthesia, brought about by drugs, neural pathology or experimental lesions, etc.

The Dynamic Plantar Aesthesiometer was developed to apply a reproducible light touch to the rodent plantar surface, and quantify the force which causes the animal to react by withdrawing the paw.