Plethysmography

Modular construction...extreme flexibility

MP systems offer features to support nearly every physiological recording scenario. The following advanced features apply to the application you selected.

If you don't see an Advanced Feature that interests you, please contact BIOPAC so we can identify the best solution for your particular need.

Automated Noninvasive Blood Pressure – Human

The NIBP100D Noninvasive Blood Pressure System automatically records noninvasive blood pressure. The NIBP100D system attaches to the fingers of a human subject to output a continuous noninvasive arterial pressure (CNAP) signal. The system will work for short and long-term studies that demand several hours of monitoring. Combine the blood pressure signal with a variety of […]

Blood Volume

Measure variations in blood flow indirectly via changes in opacity with the plethysmogram transducer for tethered, wireless and MRI applications. Typically, a blood volume pulse (BVP) transducer—otherwise known as a pulseplethysmogram or photoplethysmogram (PPG) transducer—is attached to the finger or toe to record the peripheral pulse. AcqKnowledge® will calculate measurements on a beat-by-beat basis. Pulse rate (heart […]

Indirect Blood Pressure Recordings

Record indirect blood pressure with a blood pressure cuff (TSD120) and a contact microphone (TSD108) placed over the brachial artery. Increase cuff pressure to occlude the vessel and slowly release it; as the pressure signal drops, the microphone will record the Korotkoff sounds. Easily determine systolic and diastolic BP with the measurement tools. Continuous noninvasive blood […]

Pulse Transit Time (PTT), Pulse Wave Velocity (PWV) and Pulse Wave Amplitude (PWA)

Pulse Transit Time (PTT) is the time it takes the Pulse Pressure (PP) waveform to propagate through a length of the arterial tree. The pulse pressure waveform results from the ejection of blood from the left ventricle and moves with a velocity much greater than the forward movement of the blood itself. To measure pulse […]

Regional Blood Flow

To analyze regional blood flow, occlude the venous return with the blood pressure cuff (TSD120) and measure the swelling of the distal portion of the limb with a mercury strain gauge, otherwise known as a strain gauge plethysmograph (SPG). This Pneumo Plethysmography (PnuPG) test allows users to monitor changes from a baseline reading and compare […]

Sexual Arousal Studies

Monitor a variety of physiological sexual arousal parameters from male and female subjects including penile plethysmography (phallometry) using a TSD205 PNPG transducer or vaginal plethysmography (VPG) using a TSDVPG transducer, temperature, EDA, respiration, and pulse. Monitor pulse rate, respiration rate, pulse amplitude, and area under the pulse curve on-line with calculation channels. Present images, or […]