Blood Pressure and Sound (1)

Slides:

Advertisements

Similar presentations

Institute of Mathematics, Physics and Mechanics University of Ljubljana, Slovenia World Congress Medical Physics and Biomedical Engineering1.

Advertisements

Heart Rate, Blood Pressure, and Exercise. Blood Pressure Made up of two numbers: –systolic blood pressure –diastolic blood pressure. Written as: Systolic/Diastolic.

BLOOD PRESSURE VITAL SIGNS. BLOOD PRESSURE Measurement of the pressure the blood exerts on the arterial wall 2 types of BP measurement Systolic = pressure.

Pulse palpation Pulse pressure  The pressure felt as the blood in the artery surges through the point that has pressure applied.

Measurement of CV variables. In vitro Total control of confounding variables –Vasomotion, temperature changes, autoregulation, mean BP Most accurate because.

Monitoring The Emergency Patient ABDULRAHMAN SINDI ( Emergency Medicine Resident)

Bioimpedance Measurement

Blood Pressure Determination

Blood Pressure and Sound (2)

Ensure that you have the following necessary equipment: -A sphygmomanometer - A stethoscope -Hand cleansing gel Mercury manometer Cuff Stethoscope Handbulb.

Influence of different representations of the oscillometric index on automatic determination of the systolic and diastolic blood pressures Vojko Jazbinšek,

Chapter 5 Part Two Blood Pressure and flow by Ibrhim AlMohimeed BMTS /3/2013.

Blood pressure measurement PHCL 326 (1+1) Clinical skills for pharmacists.

DEPARTMENT OF ENGINEERING SCIENCE INSTITUTE OF BIOMEDICAL ENGINEERING Marco F Pimentel, Graduate Student, Centre for Doctoral Training in Healthcare Innovation,

Blood Pressure Basics.

Blood Pressure and Its Measurement. Blood Pressure – What is It? When the heart contracts blood is forced through the arteries blood pressure is maximum.

Bellwork Draw a venn diagram to show similarities/differences between arteries and veins Try to add AT LEAST 2 points in each area.

Non-Invasive Blood Pressure Measurement Techniques Ausculatory and Oscillometric Ausculatory (manual or automated) uses detection of Korothoff sounds to.

Blood Pressure. A.Blood pressure is the force of blood against the inner walls of blood vessels anywhere in the cardiovascular system, although the term.

Arterial Blood Pressure

동서의료공학과 정 진 웅. ① Audio frequency 20 ~ 20,000 Hz wave length frequency speed of light (c=3 x 10 8 m/s) 10,000 km.

Chapter 13 Blood Pressure Monitoring. Originates from the heart Value depends on 3 factors: cardiac output diameter of arteries the quantity of blood.

Blood pressure monitoring Monica Morosan. AAGBI standards of monitoring A - Induction and Maintenance of Anaesthesia 1. Pulse oximeter 2. Non invasive.

생체계측 II Report # 송성진 Medical Instrumentation II.

Current issues in healthcare

Blood Pressure The measurement of the force of blood against artery walls when the heart contracts or relaxes.

Non-Invasive Blood Pressure Waveform Monitoring in Mice By Andrew McClellan Laura Miller.

Blood Pressure PN 1 Nursing Skill Labs. Blood Pressure Force (or pressure) of blood in arterial walls in response to a ventricle contraction & ejection.

 Blood pressure means the pressure exerted by blood on the wall of the arteries.  Unit of Measurement-----mmHg  Normal BP  Systolic (100—14ommHg)

BLOOD PRESSURE PRACTICAL Dr. Zahoor Ali Shaikh 1.

© 2009 The McGraw-Hill Companies, Inc. All rights reserved Vital Signs: Blood Pressure.

VITAL SIGNS BLOOD PRESSURE PULSE TEMPERATURE RESPIRATIONS.

Electromyography (EMG)

Vital Signs Medical Science 1.

Cardiovascular Physiology Lab #10 Path of Cardiac Excitation Sinoatrial (SA) Node –pacemaker of the heart Atrioventricular (AV) Node –Delays conduction.

Lab Ex. 45 Pulse Rate & Blood Pressure

Vitals Jessie young.

LAB 10 Physiology of the Circulatory system

Authors: Noor Mohammed Dr. M.Z. Hossain Dr. Sumon Saha

Higher Human Biology. Blood Pressure  The force exerted by blood against the walls of the blood vessels  Measured in mmHg (millimetres of mercury) 

Blood pressure reflects the force of the heartbeat and the resistance of the arteries to the pumping action of the heart. *Systolic pressure represents.

How to Take a Paradoxical Pulse

Forces acting on blood during circulation

Blood Pressure and Mean Arterial Pressure It’s all about perfusion!

Blood pressure measurement Presented by -Deepika Jain -Divya Jain

Measuring Blood Pressure. Diagnostic Criteria for HTN Two or more separate occasions – BP > 140/90 –Average of Seated Standing for > 2 min Seated with.

U.S ARMY HEALTH CARE B/P LAB. 2 SGT Chase Johnson Army Health Care Recruiter U.S Army Medic ( 68W) Emergency Medical Technician (NREMT) Advance Cardiac.

PRESENTED BY : HATIM DINI.  INTRODUCTION  INDIRECT METHOD  GENERAL FACTS  PULPATORY METHOD  AUSCULATORY METHOD  ULTRASOUND METHOD  OSCILLOMETRIC.

Blood Pressure. Blood pressure is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs.

WRITING YOUR MATERIALS AND METHODS! Physiology Lab.

Date of download: 7/3/2016 Copyright © 2016 SPIE. All rights reserved. Static autoregulation. The classic static autoregulation curve shows a plateau of.

Carditech, California, USA University Of West Bohemia, Czech Republic

Blood Pressure Hypertension Orthostatics

BIOELECTRONICS 1 Lec10: ch4 Blood Measurements By

Noninvasive measurement of blood pressure

Continuous blood pressure measurement

ELECTROCARDIOGRAM ECG

Blood Pressure.

High Blood Pressure (Hypertension)

Blood Pressure August 2015 Blood Pressure.

Dept. of Biomedical Engineering YOUNHO HONG

CARDIOVASCULAR - 6 BLOOD PRESSURE.

Labs 33A Circulation.

MEDICAL INSTRUMENTATION II BLOOD PRESSURE AND SOUND

Labs 33 Circulation.

Labs 33A Circulation.

Fig. 1 From conventional cuff-based blood pressure measurement to cuff-less BP monitoring using a smartphone. From conventional cuff-based blood pressure.

Lab Ex. 45 Pulse Rate & Blood Pressure

Blood Pressure Determination

Presentation transcript:

Blood Pressure and Sound (1) Dept. of Biomedical Engineering 2003200449 YOUNHO HONG

What kinds of devices? BP ( Blood Pressure ) Invasive BP ( IBP ) Noninvasive BP ( NIBP ) Tonometry Stethoscope

Tonometry P = F/A When we blow some air to ball M F=Mg contact area = A P = F/A eye P LED blow air air ject photo sensor (photo diode or photo TR) When we blow some air to eye by air ject, The eye will be pressed and then the reflection degree of the light that is from LED will be changed.

NIBP (noninvasive blood pressure) Cuff Cuff Pressure (systolic pressure) 120mmHg 90mmHg (diastolic Pa (arterial pressure) t We can’t measure the wave precisely by NIBP.

NIBP (noninvasive blood pressure) (systolic pressure) 120mmHg 90mmHg (diastolic t P korotkoff sound Cuff pressure slope (-2 ~ -3 mmHg/s) 180mmHg Threshold “ Oscillometric Method” As cuff pressure is getting smaller, the pressure that sensor measures is getting bigger at first. And then the pressure is getting smaller in the middle until cuff pressure reachs to the diastolic pressure.

Phase-Sensitive Demodulation # From Problem 8 (HW2) (1) Add noise Cn to x(t). And do phase-sensitive demodulation.

Phase-Sensitive Demodulation

Phase-Sensitive Demodulation (2) Add random noise to x(t). And do phase-sensitive demodulation.

Phase-Sensitive Demodulation

Thank You.