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Reflux testing for ENT and SLP:

Diversatek Healthcare ZepHr® and

PatCom Introducer

Otolaryngologists (ENT) diagnose and Speech Language Pathologists (SLP) describe reflux and reflux diseases as part of their regular practice. Laryngopharyngeal reflux (LPR, also known as reflux laryngitis), extra-esophageal reflux and symptoms related to gastroesophageal reflux disease (GERD) are very common in today's society and 20% or more of the population in North America is affected by it. The evaluation is done with the help of endoscopic equipment such as the PatCom 3.4mm nasopharyngoscope and PatCom FEES system.

24 hour pH monitoring is one of the gold standards in reflux testing. It adds a quantitative measure to the evaluation by detecting pH levels both in the pharynx as well as the distal esophagus. Impedance measurements along the esophagus add additional information about the behavior of acidic reflux as well as non-acidic reflux.

The combination of the Diversate Healthcare ZepHr® pH system with the PatCom Introducer for quick and easy probe placement make it easy for Ear Nose and Throat (ENT) physicians as well as Speech Pathologists (SLP) to conduct reflux testing as part of their private practice and in the hospital.

The probe placement

  • Avoiding the touch of sensitive structures during placement

  • Navigation into esophagus under visualization instead of blindly

  • Visual confirmation of successful placement inside the esophagus

  • Increased patient comfort leads to increased patient compliance and satisfaction

  • Easy placement speeds up procedure time and improves workflow

  • Works with any nasopharyngoscope with OD 3.6mm and smaller

Diversatek Healthcare ZepHr® reflux equipment

24h pH monitoring recorder for reflux testing
24h pH monitoring system for reflux testing
  • Easy set up within minutes

  • 3 programmable buttons for symptoms

  • Buttons for meals and supine positioning

  • Easy transfer of data to computer via SD card

  • Computer software for automated analysis included

  • Calibration Kit for precice measurement included

The Diversatek Healthcare ZepHr® standard set up consists of a reusable reflux testing recorder, a calibration kit with buffer solution and accessories to carry the reflux recorder as well as transfer results to a computer. One-time-use probes with different sensor configurations are used based on the clinical requirements.


The 24h pH monitoring recorder itself features a small size and lightweight design with easy-to-use interface. Three large easy to identify programmable symptom buttons are used by the patient to digitally record whenever they are experiencing one of their reflux symptoms. Additional dedicated buttons on the device record upright and recumbent patient position and meal times. A back light can be turned on to be able to operate the pH recorder in the night. All data is conveniently stored on a SD card making it easy to transfer study results to a computer.

The 24 hour pH monitoring probes come in three sizes for Pharyngeal Reflux Detection to meet a variety of esophageal lengths. They measure the number of incidences and frequency of distal, proximal, and pharyngeal reflux events, both acid and nonacid. They correlate patient symptoms, such as cough, with reflux events. The uniquely designed ZepHr® LPR Probes use impedance to identify retrograde reflux and pH sensors to differentiate acid and nonacid reflux events. Small in diameter, Diversatek Healthcare ZepHr®  probes are made from specially-formulated polyurethane, which softens in response to body temperature to optimize ease of insertion and enhance patient comfort.

Analysis and Report

24h pH monitoring impedance graph for reflux testing.
24h pH monitoring report for reflux testing.

Zvu® Functional GI Software gives the complete picture for reflux diagnostics. The integrated AutoSCAN® does the analysis for the end user and gives recommendations for a most convenient and efficient work flow.


The pH monitoring software automatically detects and analyzes full column reflux and hypopharyngeal events. It automatically adjusts normal values whether the study is performed on or off PPIs. Simplified software controls allow easy transitioning between color and conventional views, including impedance. Customizable reports and multiple report formats are available and will be set up based on clinical requirements and visual preferences.


The reflux testing software includes automated analysis of Mean Nocturnal Baseline Impedance (MNBI), and calculates both DeMeester and Boix-Ochoa composite scores. Naturally Zvu® Functional GI Software includes the latest consensus guidelines.


Training and Education

PatCom Medical and Diversatek™ share the same values when it comes to training and education of our customers. There are few things more important. The best equipment needs to be paired with ongoing support, training opportunities and innovative education solutions.

Diversatek University Online is a training platform that contains free content on impedance/pH reflux monitoring studies. Included are tutorials providing step-by-step guidance to develop skills in data acquisition, study review and report generation.


The Diversatek™  Technical Research & Training Center in Denver specializes in clinical education and personalized training to make learning easy and convenient. Comprehensive clinical instruction provides users with the knowledge and skills necessary to effectively acquire and analyze impedance/pH reflux monitoring studies. 


Diversatek™ Healthcare is proud to present a series of live, interactive discussions on topics related to impedance/pH reflux monitoring. Each webinar includes a didactic session followed by an open discussion. All webinars are recorded and posted to the Diversatek™ University online portal for easy reference.


PatCom Medical and Diversatek™ Healthcare clinical specialists deliver product support to suit your specific needs—on your schedule. Specialists are onsite at your facility to train and support you on your Diversatek Healthcare reflux monitoring equipment as you work through patient cases, acquire and analyze patient data, and create patient reports.


PatCom Medical and Diversatek™ offer virtual coaching online and in real-time,  clinical specialists work with you via screen sharing to provide study-specific data review and report generation coaching for your more difficult studies.

Please fill out our contact form at the bottom of this page to learn about upcoming training events online and in person.

The Service

  • Pledge to raise industry standard of customer service to new levels

  • 7 day technical support by phone, email and text

  • Remote access software service included

  • Free loaner during repair


One of the the main reasons PatCom Medical Inc. was established is the desire to commit to a level of customer service that goes above and beyond what others do. The PatCom service concept provides the support that ensures our customers are able to perform their own work without interruption. It this the underlying understanding of everyone at PatCom to make our customer's problems ours to solve that sets us apart.

As responsiveness is a key element of good service we offer support 7 days a week by phone, email and text. We offer remote access service free of charge where we have the ability to take control of your system's computer to solve any software related issues within minutes.

Contact Us

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What is Acid Reflux?

​When the lower esophageal sphincter (LES) is closed, it prevents acid and stomach contents from traveling backwards from the stomach.  Acid reflux occurs when the LES relaxes at the wrong time, making it possible for stomach acid content to back up into the esophagus. This can cause a number of different symptoms in the esophagus but also as high up as the larynx and pharynx. Laryngopharyngeal reflux (LPR) is a condition in which acid from the stomach moves up the esophagus and gets to the throat. LPR symptoms include sore throat, cough and an irritated larynx. Lifestyle changes often times offer the best treatment outcome.

What is 24h pH monitoring?



There are very few side effects of esophageal pH monitoring. Although there may be mild discomfort in the back of the throat while the catheter is in place, particularly during swallows, the majority of patients have no difficulty eating, sleeping, or going about their daily activities.

Reflux testing with esophageal 24-hour pH/impedance reflux monitoring is a quantitative measurement. It measures the amount of reflux (both acidic and non-acidic) in the esophagus and larynx/pharynx during a 24-hour tp 48h period. It also assesses whether the patient's symptoms are correlated with the reflux or not.

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