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The use of dedicated pulsatile ventricular support devices (VAD) for circulatory support is becoming an accepted treatment modality for adult patients requiring support due to post-cardiotomy pump failure or post-AMI cariogenic shock; the VAD could also be used as a bridge to transplant. Although temporary circulatory support in pediatric patients is being performed with ECMO or centrifugal pumps, ...

The limited availability of donor hearts for people with end stage heart failure has driven the condevelopment of mechanical circulatory support systems (MCSSs). MCSSs can be broadly classified intocontinuous flow systems. Pulsatile systems drive blood indirectly through blood pumps, resulting inThis disadvantage of these systems, however, is their relatively large size. Continuous flow systemssim ...

Minimal access abdominal surgery through the laparoscope has generally replaced surgical procedureslaparotomy for several common procedures, including cholecystectomy and appendectomy. More complicatgastrointestinal operations are also being attempted laparoscopically. Many of these procedures aretechniques which are not yet standard laparoscopic techniques. A basic surgical technique necessarythe ...

Calcification of blood contacting surfaces has been the key impediment to the development of polymevalve prostheses and other polymeric implantables. The deposition of calcium plaques as hydroxyapatiand potentially leads to valve dysfunction. That calcification proceeds preferentially along surfacestress only exacerbates the problem. This work is based on the hypothesis that calcification along fa ...

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Ultrasonic imaging is potentially one of the most versatile diagnostic tools in medicine, yet it istransducer designs. New applications of acoustical microscopy, performed at frequencies above 200 MHminiature transducer geometries to enable in vivo applications and to enhance present in vitro capabtechniques will be used to create piezoceramic transducer elements with novel geometries. In Phase It ...

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The requirements of complex sample monitoring present a growing need for a new generation of highlyenzyme electrodes that operate in non-processed or raw samples and have multi-analyte capability. This to establish the feasibility of novel colloidal gold/immobilized enzyme based raw sample/multi-anspecific objective is to develop a biosensor that can measure high density lipoproteins in whole bloe ...

Periodontal disease is a common problem affecting many Americans today. Earliest indicationof periodontal disease in change in bone and tissue mass. Both assessment of bone support and thedetection and measurement of small changes in bone and soft tissues are fundamental tot he intraoralexamination. The need for improved image resolution with minimal patient exposure has long beenrecognized. In co ...