Non–Invasive Medical devices: A Critic Review

Abstract

The non-invasive procedure means there is no incision or break to any parts of the body which includes skin, subcutaneous tissue, mucosa or any natural cavities. An example for non-invasive procedure is deep palpation and percussion. There are many non-invasive procedures, ranging from simple observation to specialized forms of surgery such as radiosurgery, extracorporeal shock wave lithotripsy which is a non-invasive treatment for stones in the kidney, gallbladder or liver using an acoustic pulse. For centuries, physicians have employed many simple non-invasive methods based on physical parameters in order to assess body function in health and diseases such as pulse-taking, the auscultation of heart sounds and lung sounds, temperature examination, respiratory examination, peripheral vascular examination, oral examination, abdominal examination, external percussion and palpation, blood pressure measurement, change in body volumes by using plethysmograph, audiometry, eye examination, and many others.