有创血压测量仪 -尊龙凯时网娱乐官网

bp100 血压测量仪采用有创血压测量的方式，测量准确，使用方便，主要用于大鼠、小鼠、兔子等动物的血压测量使用。

bp100为单通道血压测量型号。 

bp100 血压测量仪配有细小的catheter-tip传感器可用于高精度的动脉血压测量。精确的收缩压、 舒张压、 平均压和心率会实时显示。

 

bp-100 操作灵活，带一键调零按钮。用户可以设置高压和低压报警。一系列数据输出接口可以用于数据采集。 aalog voltage 输出接口用于快速（ 连续信号）、 收缩压、 舒张压、 和心率， 兼容数据采集系统。 数据更新快速。 也可以选择快速模式，进行更快实时更新。敬请来电咨询玉研仪器。

 

主要技术参数：

输入信号类型：differential instrumentation amplifier, 1megohm impedance
excitation voltage：5.0vdc
transducer compatibility ：dc bridge-type
transducer input jack ：6-pin wk6-32s
transducer output (nominal) ：5uv/v/mmhg
压力测量范围：0 – 310mmhg
响应频率：1khz
压力精确度：+1mmhg
压力分辨率（ 显示）：1mmhg
pressure resolution (analog outputs) ：0.1mmhg
pressure signal, systolic, diastolicanalog output scaling：10mv/mmhg
heart rate (bpm) analog output scaling ：5mv/bpm

bpm-832 型双通道型号血压测量仪

双通道血压测量仪可同时测量2只动物。

与单通道型号一样，可自动操作，带一键调零按钮。用户可以设置高压和低压报警。aalog voltage输出接口用于快速（连续信号）、收缩压、舒张压、和心率，兼容数据采集系统。所有的数据显示每2.5秒钟更新一次。也可以选择快速模式，进行更快实时更新。

 

components for 2-channel bp monitor:
1 ea bpm-832 amplifier
2 ea dtx-1 bp transducer
2 ea tc-gra adapter cable

the bpm-832 pressure monitor provides two independent amplifiers for use with bridge-type transducers, including pressure, force, and acceleration. each channel includes a high-gain preamplifier, low-pass filtering, adjustable dc balancing, and a digital readout.

the wide gain range of the bpm-832 and its excellent dc stability make it the perfect choice for interfacing most bridge-type transducers. the digital display can be calibrated in real-world units, such as mmhg, for convenient monitoring. corresponding analog outputs are provided for each channel for external recording.

a variety of transducers is available from cwe, inc. these include blood-pressure transducers, airway pressure transducers, sensitive differential transducers for measuring airflow with a pneumotach, and force transducers. the input connectors are compatible with all cwe and grass instruments^® pressure and force transducers. adapter cables are available for most commercial transducers as well.

the bpm-832 is powered by a regulated, wall-mount power supply with all international approvals, including the ce mark. the bpm-832 provides a compact, economical solution for most transducer interfacing applications.

ordering information:

direct arterial bp tracing	nibp waveforms

direct bp	indirect bp (nibp)
þ  "gold standard" for accuracy	þ  good accuracy (<+6mmhg) depending on technique
þ  continuous measurement	þ  intermittent measurement
þ  analog signal suitable for data acquisition	þ  requires software to compute measurements
þ  both systolic and diastolic measurement	þ  both systolic and diastolic measurement
þ  mean bp requires processing of raw signal	þ  provides mean bp
þ  signal must be processed to get heart rate (hr)	þ  provides heart rate (hr)
þ  requires surgery to place catheter	þ  no surgery required
þ  no special restraints required	þ  requires restraining animal in holder
þ  periodic flushing of catheter required	þ  periodic inflation/deflation of cuff required
þ  does not require warming of animal	þ  some systems require warming of animal to increase blood flow in extremities (see note)

measuring blood pressure (bp) is a common requirement for many experimental procedures. it is typically done in one of two ways:

 

the direct method is straightforward, but requires catheterization of a major artery. the catheter is connected to a blood pressure transducer and suitable amplifier to produce an analog signal. this signal can be observed on an oscilloscope, or fed into a data acquisition system for recording and analysis.

the nibp method uses an inflatable cuff around the tail of the animal, a means of inflating/deflating the cuff, and a means of detecting pulsatile blood flow. depending on the equipment, special software is required to monitor the results, or the measurements can be sent serially to a computer for data collection.

important note: nibp systems differ in the means of pulse detection. mice and rats increase blood flow to their tails as a means of thermoregulation; as the body temperature increases, blood flow is diverted to the tail for heat radiation. the less-sensitive piezo-electric transducers require this heating to get an adequate signal. the more sensitive photoplethysmographic technique normally does not require heating above ambient temperature. it has long been known that heating the animal produces thermostress, and actually increases bp. thus the well-established photoplethysmographic method produces the most accurate measurements. 

the table below lists the major features and advantages of each of these methods of measuring bp. click on the highlighted link to go directly to that page.

note: the photoplethysmographic nibp systems sold by cwe are inherently more sensitive than piezo sensor systems, and do not normally require animal heating.

part no.	model	description
08-12000	bpm-832	dual-channel pressure monitor with power supply, specify: 115 or 230v
10-04100	dtx-1	blood-pressure transducer
10-04210	tc-gra	adapter cable for above transducer

the bpm-832 is a dual-channel bp amplifier with wide sensitivity range and filters. has front-panel readouts for each channel. accepts standard blood-pressure and other transducers (see below).

根据实验需求，还可以选择无创型血压测量系统：

大小鼠无创血压计

有创血压测量仪的部分参考文献：

il tsai,  - journal of applied physiology, 2014 - am physiological soc

... catheterized (pe-50) for blood pressure measurement (transducer: dtx-1; amplifier: ta-100,
cwe). ... a “t-piece” design (9). both respiratory airflow and blood pressure signals were ... electronic
design, cambridge, uk) and the powerlab data acquisition system (adinstruments). ...

cm klingerman, n trushin… - american journal of …, 2013 - am physiological soc

... to monitor arterial blood pressure (abp) using a pressure transducer (ta-100; cwe, ardmore,
pa ... the pneumotachograph and blood pressure transducers were calibrated prior to every
experiment. ... were digitized using an analog-to-digital data acquisition system (powerlab 16 ...

b chenuel, t sonobe, p haouzi - clinical toxicology, 2015 - informahealthcare.com

... into the right femoral artery for continuous monitoring of systemic arterial blood pressure (abp),
while ... the arterial catheter was connected to a pressure transducer (ta-100, cwe inc., ardmore,
pa), while ... at 200 hz using an analog-to-digital data acquisition system (power lab ...

p haouzi, b chenuel, t sonobe - clinical toxicology, 2015 - informahealthcare.com

... of co 2 and o 2 in air and h 2 s in n 2 . arterial blood pressure and respiratory flow signals were
digitized at 200 hz (power lab system). ... the arterial catheter was connected to a pressure
transducer (ta-100, cwe inc., ardmore, pa), while the transonic flow probe ...

t sonobe, p haouzi - cardiovascular toxicology, 2015 - springer

... were connected to pressure transducer (bd dtxplus transducer, becton–dickinson, franklin
lakes, nj; amplifier ta-100, cwe, ardmore, pa) to monitor blood pressure. ... all signals were
digitized at 400 hz using an analog-to-digital data acquisition system (power lab 16/35 ...

, yj huang, il tsai - journal of applied physiology, 2014 - am physiological soc

... minute ventilation) of unrestrained, unanesthetized animals were measured using the whole
body plethysmography system (buxco research ... the femoral artery was catheterized (pe-50)
for blood pressure measurement (transducer: dtx-1; amplifier: ta-100, cwe). ...

em campbell, pa cahill,  - journal of the mechanical behavior of …, 2012 - elsevier

... pressure head of 0.9% saline, the height of which was altered using a pulley system. ... a pressure
transducer (dtxplus, bd, nj, usa), amplifier and monitoring device (ta-100, cwe, pa, usa ...
a water-filled inflation device (basix 25, merit medical systems, usa) connected to the ...

dp li, q yang - autonomic neuroscience, 2007 - elsevier

... arterial blood pressure was monitored with a pressure transducer (pt-30, grass instruments,
quincy, ma) through a catheter placed in the right femoral artery and was recorded using a blood
pressure amplifier (ta-100, cwe inc., ardmore, pa) and a micro1401-plus analog-to ...

p haouzi, t sonobe, b chenuel - respiratory physiology & neurobiology, 2014 - elsevier

... a catheter was inserted into the right femoral artery for systemic blood pressure monitoring and ...
the arterial catheter was connected to a pressure transducer (ta-100, cwe inc., ardmore, pa ...
were digitized at 200 hz using an analog-to-digital data acquisition system (power lab ...

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