Mechanical Medical Device for Generating Vibration and Stimulation of the Neuron Pathways

• Main Authors: Antonín Svoboda, Milan Chalupa, Taťána Šrámková
• Format: Article
• Language: English
• Published: MDPI AG 2021-12-01
• Series: Symmetry
• Subjects: paralysis; reflex ejaculation; vibrostimulation; crank mechanism; accumulator; electrical motors
• Online Access: https://www.mdpi.com/2073-8994/13/1/62

This article describes a medical device uses precisely generated vibrations to obtain genetic material (sperm) in injured men, tetraplegics, and paraplegics. A significant advantage is the absence of general anesthesia of the patient. The DC motor of a medical device works with a safe voltage powered by rechargeable or AA cells. The principle of generation of vibration is a crank mechanism. Rotation of the flywheel is converted to rectilinear reciprocating motion. The amplitude is set in the range between 1–4 mm and the frequency is controlled by the RPM of the DC motor. If the stimulation will be followed preciously with the methodology, the process will be completed within 12 min from the beginning of stimulation. The success rate of the device is in the range between 65–85% depending on the patient’s condition and the extent of the spinal cord lesion. The measurement of sinusoidal oscillations was performed by using a stand in which the device was mounted. The amplitude was measured with an accelerometer and then mathematically converted by software Matlab and MS-Excel to the magnitude of the deviation in mm. Measurements have shown that the proposed design meets the requirements for amplitude and frequency.