- Width Measures about 8 mm or 1/3 in
- Length Measures About 21 mm or 4/5 in
- Powered by Physiologic Battery and Saline
- Radio-Band Frequencies
- No Painful Attachment Needed
- Non Traumatic Testing Procedure
The Heidelberg pH Capsule measures about 8 mm diameter x about 21 mm Length. It is encapsulated within a sealed polyacrylate (plastic) capsule, similar to the plastic used in cardiac pacemakers. The pH Capsule is NOT RADIOACTIVE (radiation is not used in the testing process either). It is a high-frequency micro-electronic transmitter, designed specifically for intragastric (in stomach) and intraesophageal (in esophagus) monitoring. The power source for the pH Capsule, physiologic battery, which operates off approximately one grain of salt solution derived from normal 0.9 physiologic saline. When the pH Capsule is immersed in the normal 0.9 saline, it will absorb saline into its battery compartment. The saline acts as the electrolyte for the battery operation, and promotes the transfer of electrons, to power the capsule, this flow of electrons will power the pH Capsule for many hours.
The pH Capsule is swallowed, with an ounce of water. It reaches the stomach usually within 2 to 3 seconds. The pH Capsule may be tethered to prevent premature migration out of the stomach. When the pH Capsule is properly positioned in the stomach, and displaying the pH Levels on the Graph, a small piece of medical tape is placed over the exposed tether, on the patient’s cheek, to prevent migration out of the stomach. The stomach’s parietal cells may then be challenged with a saturated solution of sodium bicarbonate, to determine the parietal cell activity, and re-acidification time.
The pH capsule will record the strength of acid (pH) information and display immediate changes. Secretion from the acid producing cells in the stomach (parietal cells) is automatically recorded and display on a computer generated graph. The strength of the acid (pH), time required to reacidify or alkalize the stomach will also be displayed on the computer displayed graph.