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Using Pressure Transducers for Noninvasive Heart and Respiratory Monitoring

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dc.contributor.authorDowden, Matthew Richard Barcroften
dc.contributor.committeechairWicks, Alfred L.en
dc.contributor.committeememberKochersberger, Kevin B.en
dc.contributor.committeememberMuelenaer, Andre A.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T20:42:07Zen
dc.date.adate2012-08-24en
dc.date.available2014-03-14T20:42:07Zen
dc.date.issued2012-07-25en
dc.date.rdate2013-08-24en
dc.date.sdate2012-07-27en
dc.description.abstractDetecting heart and respiratory rates is an essential means of providing emergency medical care. Current methods of detecting such signals include the widely used electrocardiography (ECG) method. Other more manual methods of heart and respiratory rate estimation require a practitioner to constantly observe the patient. These methods are time consuming and detract valuable time from emergency medical care. This thesis presents a novel, hands off, heart and respiratory monitor (HARMONI). It uses pressure transducers and medical tubing placed on a person's chest. The tubing is plugged off at one end, and then attached to a pressure transducer at the other end. The transducer sees spikes in voltage whenever the pressure inside the tubing changes. Heart and respiratory rates both cause expansion in the chest, increasing the pressure in the tubing, and causing the transducer to see a change in voltage. The method was first validated, and then tested in a simulated environment. Finally, the device was transformed in to a full system prototype. Human tests were conducted to correlate the signal with that of an industry standard ECG device. This thesis explains how heart and respiratory rates can be derived using signal processing techniques and a simple non-invasive sensor. This device is a rapidly deployable tool that has the potential to save lives specifically in mass casualty situations. It would be a force multiplier, allowing a single responder to monitor multiple casualties, saving time and lives.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-07272012-140147en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07272012-140147/en
dc.identifier.urihttp://hdl.handle.net/10919/34214en
dc.publisherVirginia Techen
dc.relation.haspartDowden_MRB_T_2012_f1.pdfen
dc.relation.haspartDowden_MRB_T_2012_fairuse_IRB_f2.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectfirst responderen
dc.subjectpressure transduceren
dc.subjectchest sensoren
dc.subjectrespirationen
dc.subjectheart rateen
dc.titleUsing Pressure Transducers for Noninvasive Heart and Respiratory Monitoringen
dc.typeThesisen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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