Salenko, OlexandrGavrushkevch, NataliiaОrel, VadymSalenko, BohdanCherniak, ViktorKarpenko, Kostiantyn2025-04-182025-04-182025Increasing the Sensitivity of the Tactile Sensor to Detect Shredders in the Patient’s Body / Olexandr Salenko, Nataliia Gavrushkevch, Vadym Оrel, Bohdan Salenko, Viktor Cherniak, Kostiantyn Karpenko // Mechanics and Advanced Technologies. – 2025. – Vol. 9, No. 1(104). – P. 40-50. – Bibliogr.: 12 ref.https://ela.kpi.ua/handle/123456789/73441Means of increasing the sensitivity of a tactile sensor for detecting foreign bodies in the wound of patients, the wound channel, which is advisable to use in field conditions in emergency situations, have been analyzed. Such a sensor is a device consisting of a probe and a block of mechanical and electronic means held by the paramedic's hand. To detect a foreign body, a probe containing an elastic thin flexible probe with an external quasi-elastic shell is inserted through the wound channel until contact with the foreign body. The signal from the dynamic contact is visualized and displayed on a display device, which allows the paramedic to make a decision on further medical care for the affected person. Since the probe receives additional mechanical excitation, the signal has a long-lasting form, which increases the efficiency of primary diagnostics. However, at the same time, using the probe as a waveguide for both mechanical excitation and for transmitting vibrations to the means of amplification and spectral analysis significantly distorts the informativeness of the signal, impairs the accuracy of the studies. It is proposed to use the probe shell as a waveguide for transmitting vibrations, while the probe acts directly as a waveguide for the contact signal. It has been established that in this case it is possible to increase the signal-to-noise ratio in the range of 0.92…2.5 kHz to 2 dBA, which is extremely important for analyzing the spectral density patterns of vibrations from contact conditions in a viscous medium.enspecial tool diagnosticnoise emissionwoundnon-radiocontrast foreign objectспеціальний інструмент діагностикишумове випромінюваннярананерентгеноконтрастний сторонній предметArticleP. 40-50https://doi.org/10.20535/2521-1943.2025.9.1(104).316213621.73.16