{"id":43738,"date":"2012-05-06T12:38:29","date_gmt":"2012-05-06T15:38:29","guid":{"rendered":"http:\/\/revistapesquisa.fapesp.br\/?p=43738"},"modified":"2012-12-06T12:39:45","modified_gmt":"2012-12-06T14:39:45","slug":"scalpel-that-cuts-with-sound","status":"publish","type":"post","link":"https:\/\/revistapesquisa.fapesp.br\/en\/scalpel-that-cuts-with-sound\/","title":{"rendered":"Scalpel that cuts with sound"},"content":{"rendered":"<p>As an alternative to similar imported products, researchers from the Physics Institute of S\u00e3o Carlos at the University of S\u00e3o Paulo (USP) and from the WEM company have developed a prototype of an ultrasonic scalpel expected to provide increased cutting accuracy for surgeons than traditional scalpels. In addition, patients will heal faster (<em>USP Online<\/em>). An electric signal transmitted to the scalpel activates a group of ceramics that generate the so-called reverse piezoelectric effect, by vibrating and producing movements at a frequency ranging from 50 thousand to 55 thousand hertz per second. This is much higher than the frequency detected by the human ear. A converter amplifies the acoustic power and generates a longitudinal vibration on the handle. This vibration decomposes the nearby proteins and tears the tissues. Designed to cut through the soft tissues, the device has a tip that resembles pliers. This tip holds the tissue while the scalpel cuts the tissue and cauterizes it.<\/p>\n","protected":false},"excerpt":{"rendered":"Prototype uses ultrasound for greater precision","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[168],"tags":[247],"coauthors":[785],"class_list":["post-43738","post","type-post","status-publish","format-standard","hentry","category-technoscience","tag-medicine"],"acf":[],"_links":{"self":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/43738","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/comments?post=43738"}],"version-history":[{"count":0,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/43738\/revisions"}],"wp:attachment":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/media?parent=43738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/categories?post=43738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/tags?post=43738"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/coauthors?post=43738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}