{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T10:15:12Z","timestamp":1767867312941,"version":"3.49.0"},"reference-count":14,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2020,12,31]],"date-time":"2020-12-31T00:00:00Z","timestamp":1609372800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>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\u20134 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\u201385% depending on the patient\u2019s 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.<\/jats:p>","DOI":"10.3390\/sym13010062","type":"journal-article","created":{"date-parts":[[2020,12,31]],"date-time":"2020-12-31T14:31:49Z","timestamp":1609425109000},"page":"62","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Mechanical Medical Device for Generating Vibration and Stimulation of the Neuron Pathways"],"prefix":"10.3390","volume":"13","author":[{"given":"Anton\u00edn","family":"Svoboda","sequence":"first","affiliation":[{"name":"Faculty of Mechanical Engineering, University of Jan Evangelista Purkyn\u011b in \u00dast\u00ed nad Labem, Pasteurova 1, 400 96 \u00dast\u00ed nad Labem, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Milan","family":"Chalupa","sequence":"additional","affiliation":[{"name":"Faculty of Mechanical Engineering, University of Jan Evangelista Purkyn\u011b in \u00dast\u00ed nad Labem, Pasteurova 1, 400 96 \u00dast\u00ed nad Labem, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ta\u0165\u00e1na","family":"\u0160r\u00e1mkov\u00e1","sequence":"additional","affiliation":[{"name":"Department of Urology, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague 2, 121 08 Prague, Czech Republic"},{"name":"Department of Traumatology, Faculty of Medicine, Masaryk University, Pon\u00e1vka 139\/6, 662 50 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,12,31]]},"reference":[{"key":"ref_1","unstructured":"World Health Organization (2020, December 30). Statistics 2010. Available online: https:\/\/www.who.int\/whosis\/whostat\/2010\/en\/."},{"key":"ref_2","unstructured":"Berkovsky, T.C. (2010). Sex life after Spinal Cord Injury. Handbook of Spinal Cord Injuries: Types, Treatments and Prognosis, Nova Science Publishers."},{"key":"ref_3","first-page":"85","article-title":"Andrological care of a patient after spinal cord trauma","volume":"20","year":"2019","journal-title":"Urol. Pract."},{"key":"ref_4","unstructured":"\u0160r\u00e1mkov\u00e1, T. (2013). Poruchy Sexuality u Somatick\u00fdch Onemocn\u011bn\u00ed a Jejich L\u00e9\u010dba, Grada-Publishing."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"S373","DOI":"10.21037\/tau.2018.04.12","article-title":"Spinal cord injury and male infertility\u2013A review of current literature, knowledge gaps, and future research","volume":"7","author":"Anderson","year":"2018","journal-title":"Transl. Androl. Urol."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Benaroya, H. (2004). Mechanical Vibration, CRC Press. [3rd ed.].","DOI":"10.1201\/9781420056143"},{"key":"ref_7","unstructured":"Vejrosta, V. (1995). Konstrukce Zdravotnick\u00fdch P\u0159\u00edstroj\u016f, \u010cesk\u00e1 Spole\u010dnost pro Zdravotnickou Techniku."},{"key":"ref_8","unstructured":"Juli\u0161, K., and Brepta, R. (1986). Mechanika I.\u2013Statika a Kinematika, SNTL."},{"key":"ref_9","unstructured":"Svoboda, A. (2015). Mechanick\u00fd P\u0159\u00edstroj pro Stimulaci Nervov\u00fdch Drah. [Ph.D. Thesis, Univerzita Jana Evangelisty Purkyn\u011b v \u00dast\u00ed nad Labem]."},{"key":"ref_10","unstructured":"Dejl, Z. (2000). Konstrukce Stroj\u016f a Za\u0159\u00edzen\u00ed I. Spoje, Montanex."},{"key":"ref_11","unstructured":"(2020, December 30). Degree of Protection IP\u2013Water Protection and Penetration of Objects. Available online: https:\/\/www.nemaenclosures.com\/blog\/ingress-protection-ratings\/."},{"key":"ref_12","first-page":"482","article-title":"Using a numerical model to verification of thermoelastic analysis of flat specimen","volume":"18","author":"Sapieta","year":"2018","journal-title":"Manuf. Technol."},{"key":"ref_13","first-page":"836","article-title":"Using the fourier transform in the analysis of vibration load tests of heterogeneous mechanical systems","volume":"17","author":"Bittner","year":"2017","journal-title":"Manuf. Technol."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"929","DOI":"10.1016\/j.pmrj.2011.07.008","article-title":"Prevalence of Testosterone Deficiency After Spinal Cord Injury","volume":"3","author":"Durga","year":"2011","journal-title":"PM&R"}],"container-title":["Symmetry"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-8994\/13\/1\/62\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T10:48:36Z","timestamp":1760179716000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-8994\/13\/1\/62"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,12,31]]},"references-count":14,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2021,1]]}},"alternative-id":["sym13010062"],"URL":"https:\/\/doi.org\/10.3390\/sym13010062","relation":{},"ISSN":["2073-8994"],"issn-type":[{"value":"2073-8994","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,12,31]]}}}