Defibrillator

Ilmu dibawah mungkin x betul

This under stress Dr. is holding defibrillator.
Ok lets talk about defibrillator, Defibrillator is a unit to sent amount of current to move a stop heart base on the heart rhythm. Normally defib will have ECG and SpO2 too., but in this entry we will discuss only defib



Basically Defibrillator use energy to deliver a shock, and the energy based on :-

1. How much current deliver
2. How much voltage is used
3. How long the time to deliver the energy

-Successful defibrillation requires that enough current be delivered to the heart muscle during the shock. Too much peak current during the shock can injure the heart. Impedance is the body's resistance to the flow of current. Some people naturally have higher impedance than others. A medical technician places the electrodes, either pads or paddles, on the patient's chest. The defibrillator equipment should never be placed directly on the breasts of female patients. Because the area between the skin and the electrodes provides a slight barrier to electrical current, the health worker usually apples gel to the skin to help better direct the electrical pulse into the heart. After the technician clears the areas, the defibrillator sends a direct shock into the chest cavity towards the heart. Depending on the machinery, the defibrillator machine may automatically choose the correct level of shock or the technician will have to determine the level of shock based on the readings of the heart monitor

Certain factors can also increase impedance, such as:

• A large and/or hairy chest
• Very dry skin
• Excess air in the lungs
• Improper application of the defibrillation electrodes

Many factors affect the chance of defibrillation success: time elapsed before the first shock is given, placement of the electrode pads, the person's impedance level and certain health conditions. Therefore, it may take more current, a longer shock duration, and/or increased voltage to ensure success.

paddles n electrodes location, depend on the body of patient whether thin, fat, obese ?







description base on the block diagram




how to test defibrillator
1. Testing limit alarm of Sp02 by setting
2. Testing limit alarm of Heart rate by setting
3. Testing using patient simulator (Fluke) to check whether joule give same what deliver
4. testing the timing charges within the limits given to get the same joules set...

reference

ebme
kollewin
virtual labs

Anesthesia Units

Ilmu dibawah mungkin tak betul



Anesthesia - ventilator & anesthetic



Sejarah - digunakan secara meluas ketika polio outbreak polio pada 1940-1950an

Ventilator is a machine specially design for help human breathing system.... mostly patient yang menggunakan ventilator is the one who collapse lung function...







consist of

- O2 gas (piping to wall & cylinder)
- Nitrous oxide ( piping to wall or cylinder)
- Patient circuit (one time used only)
- O2, N20 Indicator
- Alarm system
- Backup batteries
- sensor (gas sensor, flow sensor, battery sensor, pressure sensor all of these sensor is to maintaining the desired (PEEP))
- Controller (microprocessor)



primary function :
- to controls o2, co2, volume, pressure n flow level
- to deliver anesthetic drugs to body

functioning by diagram please see below :-


- Design to improve rate and depth breathing
- A ventilator operating in mandatory mode must control all aspects of breathing such as tidal volume, respiration rate, inspiratory flow pattern, and oxygen concentration of the breath.
- A ventilator operating in mandatory mode must control all aspects of breathing such as tidal volume, respiration rate, inspiratory flow pattern, and oxygen concentration of the breath.





ventilator minimum test : -
- battery test / power loss test
- lamp test
- audible and visual alarms
- Proximal airway pressure gauge and positive end- expiratory pressure (PEEP) control.
- Leak tests
- Modes
- Ventilator rate (and rate display)
- Oxygen calibration
- Filters.
- Sensitivity

ref :
breathing system
Fabius animation
anesthesia machine anesthesia2
principal ECRI
TI TI2
simulation
drager

A new blog for biomedical Engineer

Terlalu banyak term yang digunakan untuk biomedical eng... sampai confuse..... dan biomedical ini adalah campuran sikit sikit electronic, sikit sikit mechanic n sikit - sikit medical .... untuk menambah baik proses monitoring , therapy dan diagnosis










Cik wikipedia punya maksud ada dalam link ....




You yang menawarkan bachelor biomedical
- UTM = Bachelor of Engineering (Bio-Medical)
- UM = Bachelor of Biomedical Engineering
- UNIMAP = Bachelor of Engineering (Biomedical Electronic)
- UTHM = Bachelor of Engineering (Medic...al-Electronic)

* UIAM & UMP pon dlm process nk offer biomedic eng.
diambil dari kata2 en lukman (lecturer utm)



salary view

Catatan tugas2 biomedical

Ministry - Pantau pantau pantau .... syarikat konsesi
Universiti - Research n memberi lecture yg mana student pun tak paham
Sales - Ofkos dia kena promote barang nak dijual.... made in china pun takpe janji murah
Manufacturing - running productin sampai malam tak balik2 jumpa anak bini
R&D - research yang profit marginnya tak untung kan company