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Vasant Lad, Secrets of the Pulse: The Ancient Art of Ayurvedic Pulse Diagnosis, The Ayurvedic Press; 2006 ISBN 1-883725-13-5. Mahesh Krishnamurthy, Nadi Pariksha - The Sacred Science of Pulse Diagnosis, Jayanthi Enterprises; 2018 ISBN 978-1-7321901-1-5. Bob Flaws,The Secret of Chinese Pulse Diagnosis,1995 ISBN 978-0-9361856-7-5.
Pulse watches are utilised on a daily basis by a wide range of people, this is due to the vast availability and accessibility to the device. Pulse watch devices are used in the medical industry where a transcript of user's heart rate data over a period of time can be stored and automatically sent to the user's physician. [15]
Welsh Government video: a smart phone heart rate monitor, 2016. More recent devices use optics to measure heart rate by shining light from an LED through the skin and measuring how it scatters off blood vessels. In addition to measuring the heart rate, some devices using this technology are able to measure blood oxygen saturation (SpO 2). Some ...
A pulse oximeter probe applied to a person's finger. A pulse oximeter is a medical device that indirectly monitors the oxygen saturation of a patient's blood (as opposed to measuring oxygen saturation directly through a blood sample) and changes in blood volume in the skin, producing a photoplethysmogram that may be further processed into other measurements. [4]
Despite the lack of financial backing and grants, they persisted and the first device was implanted in February 1980 at Johns Hopkins Hospital by Dr. Levi Watkins Jr. [29] [32] The first devices required the chest to be cut open and a mesh electrode sewn onto the heart; the pulse generator was placed in the abdomen. [29]
Pulse generators may use digital techniques, analog techniques, or a combination of both techniques to form the output pulses. For example, the pulse repetition rate and duration may be digitally controlled but the pulse amplitude and rise and fall times may be determined by analog circuitry in the output stage of the pulse generator.
Pulse compression is a signal processing technique commonly used by radar, sonar and echography to either increase the range resolution when pulse length is constrained or increase the signal to noise ratio when the peak power and the bandwidth (or equivalently range resolution) of the transmitted signal are constrained.
Pulse Decomposition Analysis (PDA), which is a pulse contour analysis approach, [18] is based on the concept that five individual component pulses constitute the peripheral arterial pressure pulse of the upper body. These component pulses are due to the left ventricular ejection and the reflections and re-reflections of the first component ...