Abba mems pepar

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<ul><li> 1. IBRAHIM ABBADEPARTMENT OF INSTRUMENTATION ANDCONTROL ENGINEERING,SRM UNIVERSITY</li></ul> <p> 2. MICROELECTROMECHANICAL (MEMS)It is a technology of combining Electrical and Mechanicalcomponents together on a chip, to produce a system ofminiature dimensions .. By miniature, we mean dimensions less than thethickness of human hair !!!!2 3. WHAT ARE MEMS(Micro-electromechanical Systems) Fabricated using micromachining technology Used for sensing, actuation or are passive micro-structures Usually integrated with electronic circuitry for control and/orinformation processing3 4. TECHNOLOGY DYNAMICSSequence of MEMS Pressure sensor Accelerometer BioMEMS IT MEMS for Telecommunication: Other MEMS ( OptoMEMS and RF MEMS)4 5. RECENT MARKET STATISTICSMedical 11%Automotive 17%Computer 26%Industrial 22%Communictions21%Consumer 3%5 6. PROJECTED GLOBAL MEMS MARKET, 2008-2014($ MILLIONS)6 7. 7 8. HEALTH The health is the level of functional or metabolicefficiency of a living organism. In humans, it is the general condition of a personsmind and body, being free from illness, injury or pain.8 9. WHY MEMS TECHNOLOGIES ARE APPLY TO MEDICALFIELD?Miniaturization.Many medical instrumentations are expensive, bulky, heavy and requireexperienced technicians to operate. This is partially due to thecomponent sizes and the analysis methodology. MEMS can reduce thecomponent sizes significantly and enable new analysis methods soportable, highly-sensitive diagnosis tools would become possible9 10. .BENEFITS OF MEMS IN MEDIC AL APPLICATIONS Small volume of reagent samples (like blood), required for analysis. Low power consumption, hence lasts longer on the same battery. Less invasive, hence less painful. Integration permits a large number of systems to be built on a single chip. Batch processing can lower costs significantly. Existing IC technology can be used to make these devices. Silicon, used in most MEMS devices, interferes lesser with bodytissues.10 11. BioMEMS SETwww.micralyne.com11 12. Biomedical MEMS deals in vivo, within the host body. precision surgery Biotelemetry Drug delivery Biosensors and other physical sensors Biotechnology MEMS deals in vitro, with the biologicalsamples obtained from the host body. Diagnostics gene sequencing Drug discover pathogen detection and elimination12 13. It is a diagnostic procedure which involves the introduction of aflexible device into the lower or upper gastrointestinal tract fordiagnostic or therapeutic purposes. Conventional endoscopes can be used to view only the firstthird of the small intestine. Require sedation of patient Is an uncomfortable procedure13 14. Conventionalendoscope tools14 15. Leters endoscopes technologySize : 35mmComponents of lab on a pillDigital camera (CMOS Technology)Light sourceBatteryRadio transmitterSensors (MEMS Technology)Requires no sedationCan show a view of theentire small intestineCan aid in early d15 16. WORKING OF THISMAGIC PILL ! The pill is intended to be swallowed like any normal pill. Once within the body, the pill's sensors sample body fluids and pickup "meaningful patient data" such as temperature, dissolved oxygenlevels and pH. The pill is expected to retrieve all data over a 12-hour period anddisposed off, once excreted. This data is transmitted wirelessly to a card attachedto the wrist of the individual.16 17. Smart pillA MEMS device that can be implanted in the human body.Consists ofbiosensorsBatteryControl circuitryDrug reservoirsThe biosensors sense the substance to be measured, say insulin.Once this quantity falls below a certain amount required by the body, thepill releases the drug.17 18. MICRO-SURGICAL TOOLSPresent day surgeons operate within a domain restricted by themobility and control of the surgical tools at hand.MEMS surgical tools provide the flexibility and accuracy to performprecision surgery.Examples of microsurgical tools include:MEMS driven scalpelPrecise control of the scalpel is an important requirement in anysurgery.MEMS piezoelectric motor helps to accurately position the scalpel.MEMS pressure sensors incorporated on the scalpel, so that it canhelp to measure the force exerted on the area operated upon.Accordingly, the scalpel can he handled.Ultrasonic MEMS cutting toolThese tools make use of piezoelectric materials attached to thecutter.It consists of microchannels to flush out the fluid and debris whilecutting.Can be used to cut tough tissues, like the hardened lenses of patientswith cataract18 19. MEMS SKIN RESURFACING TOOLSThough still not commercially available, MEMS tools have been foundto overcome many drawbacks present in the conventional techniques.They can be used to remove raised skin lesions as well as lesions uptocertain depths.These MEMS structures are packaged onto rotary elements and usedover the affected areas.The debris can then be sucked out using a suction pump.19 20. MEMS enables hundreds of hollowmicroneedles to be fabricated on a singlepatch of area, say a square centimeter.This patch is applied to the skin and drugis delivered to the body usingmicropumps.These micropumps can be electronicallycontrolled to allow specific amounts ofthe drug and also deliver them at specificintervals.Microneedles are too small to reach andstimulate the nerve endings, and hencecause no pain to the body.20 21. MEMS MICRONEEDLES21 22. PATHOGEN DETECTIONAND ELIMINATIONThese are micro/nano scale devices capable of detecting andeliminating medical problems such as:Tumors,Life threatening blood clots ,Accumulation of scartissue,Arterial blockage,Plaque detection and Localized sites ofinfectionConsiderations before introducing the robots into the body The robot size should be smaller than the diameter of theartery . The robot should not damage the arterial walls as ittraverses through it. The robot can be introduced into the body through thecirculatory system of the body. The femoral artery in the leg would be the most suited,because it is a large diameter artery and is traditionally usedto introduce catheters in the body.22 23. A Graphical Representation of nanorobots working in a bloodvessel, to remove a cancerous cellwww.e-spaces.com/portfolio/ trans/blood/23 24. CONCLUSIONsAs MEMS technology reaches the biomedical field, complex,implantable, tiny devices are emerging, whose goal is improvedhealthcare. Life of the device, retrieving data out of the device anddrift resistance along with the body fluids remain the challenges to thetechnology.Despite the great achievements recorded through the useof these devices, many of them are not free from certaincomplications such as device failure, attraction of harmfulmicroorganisms, rejection etc. Biocompatibility remains one of thebiggest hurdle for MEMS medical devices.24 25. 25 </p>