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New medical pH probes for examining the gastrointestinal tract
| Content Provider | Semantic Scholar |
|---|---|
| Author | Yakovlev, Genrikh |
| Copyright Year | 2000 |
| Abstract | Long-term (1.5-24 h) continuous pH-metry of upper segments of the gastrointestinal tract (GIT) is a very important method for diagnosis of GIT diseases. Various models of pH probes, especially for 24-h pH-metry of the GIT, are commercially available from Medtronic Functional Diagnostic A/S (Denmark), Synectics Medical (Sweden), Sandhill (USA), Narco BioSystems (USA), Red Tech (USA), and Medical Instruments (Switzerland). In Russia, modern acidogastrometers (e.g., AGM03) and computer-assisted acidogastrometers (Gastroskan-5 and Gastroskan-24) are available from State Scientific-Manufacturing Company lstok-Sistema [4]. One of the most important problems facing Istok-Sistema is to develop high-performance pH probes for acidogastrometers equipped with Ag/AgC1 reference electrodes. These probes should be on par with leading foreign analogs in ergonomic, ecological, and utility characteristics. Gastrointestinal examination includes pH-metry within different GIT segments. These measurements are usually performed using primary or secondary transformers. The primary transformer (pH probe) converts the pH value of the liquid tested into potential difference or electromotive force (EMF). The secondary transformer (acidogastrometer) is calibrated in pH units. Because it is calibrated using standard buffer solutions, the accuracy of acidogastrometry is mainly determined by probe parameters. Because pH probes do not contain toxic components, they are safe in production and use. They are relatively easily tolerable by patients. High reliability and accuracy of measurements, as well as tow cost are substantial advantages of these probes [4, 7]. Under present economic conditions in Russia, the cost of GIT examination should not be too high. It is economically infeasible if the cost of a disposable pH probe is about |
| Starting Page | 183 |
| Ending Page | 187 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/BF02389820 |
| Volume Number | 34 |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1007/BF02389820 |
| Alternate Webpage(s) | https://doi.org/10.1007/BF02389820 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
