BioMedix PadNet Lab: Non-Invasive System for Arterial/Venous Testing 

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From BioMedix, we were introduced to the PADnet Lab machine, which is a non-invasive system for arterial and venous blood flow testing. This system makes use of plethysmography and standard pneumo (air) blood pressure cuffs in order to assess Ankle Brachial Index, Toe-Brachial Index, Segmental-Brachial Index, and measurements of Venous outflow/refill.  


The PadNet uses patented features, such as their ‘air’ cuffs and PPG probes for the detection of Peripheral Arterial Disease (PAD) and Chronic Venous Insufficiency (CVI.) It’s also been known to be effective at determining the wound healing potential of open sores and woundsIts main features include:  

  • The PadNet uses automated air cuff technology in order to maximize efficiency — with automatically inflating/deflating cuffs.
  • It also uses photoplethysmography (PPG) probes that can detect minute changes in blood volume under the skin by using pulse oximetry, which is when non-visible infrared light is flashed at the skin.  
  • Testing with the PadNet is highly intuitive, as it breaks down the arterial study in non-invasive segmental testing for recording ABI, TBI, segmental pressure values, and pulse volume waveforms.  
  • Finally, this system meets the requirements under CPT codes 93924, 93923 and 93922. As such, it is considered capable of a full arterial study and is reimbursable.  

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Tests Performed 

The PadNet Lab system supersedes anything that you can get from most of the more traditional Doppler machines in the market. To put it simply, it is capable of a full arterial study (compliant under CPT codes 93924, 93923 and 93922.) 

A full arterial study with the BioMedix PadNet Lab begins with the patient resting in a supine position, and fitted with the arm, knee, and ankle cuffs. Then, the study is done in segments aided by the automatically inflating/deflating (air) cuffs that attaches to the PadNet air pump through a tube.  

BioMedix constructed their system to use a PPG probe that initially attaches to the fingertip in order to determine the optical properties of tissue and skin for assessing minute blood volume changes. The air pump can also be attached to knee cuffs to collect PVR waveforms — which are helpful in determining whether or not the level of calcification in the patient’s body is so severe that it might lead to false readings. The Segmental testing is only completed with a final reading of pressure at the toes — whereas the PPG probe is transferred from the fingertip to the toes.

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Software Used 

With the PadNet Lab system, you get an intuitive software that can easily and intuitively conduct an arterial study. The records of which are recorded and encrypted for maximum security. (Newer models of the PadNet have more sophisticated software that allows for Wi-Fi connectivity, mobile support, and faster processing.)  

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BioMedix PadNet Lab: Non-Invasive System for Arterial/Venous Testing Review 

If you are looking for a system for full arterial studies, then the BioMedix PadNet Lab: a non-invasive system for arterial/venous testing is something that you can consider. It is fully reimbursable, and it offers a sophisticated form of testing with pneumo-blood pressure cuffs and PPG probes (a procedure that trumps the more traditional and manual method of collecting blood pressure and pulse volume waveforms via a vascular Doppler.)  

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Technical Specifications 

  • Pneumo-Blood Pressure Cuffs 
  • Volume Plethysmography (PPG) probes 
  • Automated blood pressure inflation/deflation with an air pump 

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Pros and Cons 

A list of pros and cons of the BioMedix PadNet Lab: Non-Invasive System for Arterial/Venous Testing.  


  • If what you’re looking for is a system that is capable of a full arterial study, then BioMedix’s PadNet is capable of that. In fact, it can test not only for Ankle-Brachial Pressure but also for Toe-Brachial Pressure, Venous Measurements, and Pulse Volume Measurement.  
  • The PADNet was constructed to be highly intuitive. With automatic inflating/deflating cuffs that connect to the PadNet air pump system through a singular tubing. 
  • Finally, photo Plethysmography is captured and recorded in the system for later diagnosis and patient information documentation.  


  • Although BioMedix took a step forward with the PadNet lab, which is intuitive and highly efficient. It is still not as fully automated as other machines out there — which can calculate recorded readings in minutes! 

8.5 Total Score


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