Measurement of human cervical compliance
| Autor: | J. Brundin, C. Somnell, S. Lundberg, U. Ulmsten, A. Molin |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
Adult
medicine.medical_specialty business.industry Biophysics Biomechanics Abortion Induced Cervix Uteri Dilatation Tissue resistance Cervical dilators Surgery Compliance (physiology) medicine.anatomical_structure Pregnancy Reference Values medicine Humans Female Peak value business Cervix Cervical canal Strain gauge Compliance Biomedical engineering |
| Zdroj: | Journal of Biomedical Engineering. 11:148-150 |
| ISSN: | 0141-5425 |
| Popis: | A critical evaluation of the various methods for the measurement of the compliance of the human cervix uteri was made. The resistance of this tissue to a dilating force was measured by a previously constructed strain gauge instrument 1 equipped with exchangeable Pratt cervical dilators. The dilating resistance offered by the cervical canal was recorded on a polygraph at a constant paper speed. Control experiments in which the dilating instrument was allowed to meet artificial cellulose tissue showed that the peak value recorded was of importance for estimating cellulose tissue resistance. Measurements of the area under the curve were shown to be of minor importance in this system. Using this technique in clinical applications, it was also shown that peak resistance provides the most accurate measurement of human cervical resistance. |
| Databáze: | OpenAIRE |
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