Patient Monitoring Systems and Ultrasound Machines

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INTRODUCTION

Philips Electronics India Limited is the leading Healthcare Company today. It strives to improve the quality of people’s lives by focussing on their health and well-being. As a company it is essentially divided into Patient Care and Clinical Informatics (PCCI), Imaging and Ultrasound. PCCI as a modality includes patient monitors, diagnostic ECG which features HOLTER, stress test etc, anaesthesia machines, ventilators, telemetry, foetal monitoring systems, and cardiac resuscitation systems (CRS) like defibrillators and automatic external defibrillators (AED). Imaging on the other hand can be classified into MRI (magnetic resonance imaging), CT (computed tomography), digital X-rays, cardio-vascular catheterization (cath lab), nuclear medicine and ultrasound.

PATIENT MONITORING SYSTEMS

Patient monitoring is vital to care in operating and emergency rooms, intensive care and critical care units. Additionally, it is invaluable for recovery rooms, radiology, cath labs, ambulatory, home and sleep-screening applications. Philips has been the pioneer in patient monitors. It has three ranges of products in the market namely IntelliVue, SureSigns and Goldway. IntelliVue Patient Monitor allows a clear view of patient information with its 20 configurable screens and a clinical decision support system (CDSS). It collects and combines physiological data to provide a clear picture of patient status. Its various models include MP 2, MP 5, MP 20 Jr, MP 20, MP 30, MP 40, MP 50, MP 60, MP 70, MP 80 and MP 90 etc. A patient monitor is an instrument that allows real-time monitoring of several parameters of the patient simultaneously. These parameters include ECG (electrocardiogram), respiration rate, non-invasive blood pressure (NIBP), invasive blood pressure (IBP), temperature, SP02, cardiac output (CO), CO2 and much more. It also has several other special parameters such as EEG (electroencephalogram), BISx (bi-spectral index), PiCCO (pulse contour invasive continuous cardiac output), spirometry, and EASI 5-lead ECG and pulse- pressure variation. Typical monitors alarm in the case of patient or equipment problems and offer limited data storage and retrieval (trending). All patient monitors interface to the Philips Clinical Network and other equipments.

Apart from monitoring a variety of parameters useful to the doctors, PHILIPS patient monitors are extremely user-friendly. They are incorporated with advanced algorithms like ST/AR for arrhythmias, FAST SP02 and 12 XL interpretations. Its CDSS provides Neonatal Event Review (NER), OxyCRG, ST map, Horizon View and Advanced Event Surveillance (AES). Its noticeable features include 20 configurable screens, provision for touch screen, PS/2 trackball, mouse or keyboard.

Components of a patient monitor:

1. Power supply
2. Battery board
3. Main board
4. Recorder board
5. Touch panel
6. I/O board
7. System interface board
8. MMS CPU

Working of patient monitor:
The AC/DC converter transforms the AC power coming from the power plug into 14 V/80W DC source and isolates the monitoring system from the AC power mains. The 14V is distributed via power bus and supplies power to all the components of the system. The MMS and MMS extension requires 48V DC power which is created by an isolating DC/DC converter. The CPU is supplied with 3.3 V and 5 V DC power while the LEDs are supplied with 12V DC power. The multi-measurement server (MMS) consists of various modules which measure the parameters discussed above. These modules are nothing but instrumentation amplifiers with post processing circuits wherever required. The various I/O boards could include PS/2, parallel printer, USB, remote devices and BISx interface.

I ] FEATURES:

Touchscreen User Interface:
Most range of IntelliVue monitors now has resistive touch technology. The protective layer prevents damage from fingernails or sharp objects. This feature provides easy access since...
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