Xem 1-20 trên 28 kết quả Implantable devices
  • The new millennium has seen the birth of a new perspective that conflates research in solid-state physics, biological science as well as materials engineering. The perspective is one that recognizes that future new advances in all these areas will be based on a fundamental understanding of the atomic and molecular infrastructure of materials that has resulted from two centuries of chemistry. Major advances will be achieved when the novel behavior, in particular the quantum mechanical behavior, that nanoscale structures possess, can be controlled and harnessed....

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  • Implant dentistry today focuses more on the patient’s overall appearance than ever before, contributing not only to enhanced social interaction but also to selfconfidence and self-esteem. As a result, esthetic implantology procedures are expected to become a more integral part of modern dentistry, encompassing quality of life along with routine functional establishment.

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  • Medical devices are instruments, apparatuses, implements, machines, contrivances, implants, or in vitro diagnostics and are intended for the cure, mitigation, treatment, diagnosis, or prevention of disease. They are intended to affect the structure or function of the body through means other than chemical action and independently of being metabolized. In the past few decades there has been greater recognition of how critical they are to delivering state-of-the-art medical care, as their use in the delivery of medical care has always been ubiquitous.

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  • Position of Pneumatic Cylinders Position in Robotics Applications Speed and Position of Bearings Speed and Position of Electric Motor Shafts General Field Detection in Implantable Medical Devices Wheel Speed Sensing for ABS Brake Applications Transmission Gear Speed Sensing for Shift Control Low Field Detection in Currency Applications Current Sensing in PCB Traces and Wires Overcurrent and Short Circuit Detection Vehicle Detection for Traffic Counting Applications

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  • Permanent pacemaker implantation can be done in the cardiac catheterization laboratory or in the operating room. Both locations have unique advantages and disadvantages. The operating room often has better lighting and thus allows better visualization of the device pocket, but fluoroscopy can be less optimal in the operating room, which generally utilizes a C-arm radiology device. Sterility was once thought to be more advantageous than the operating room setting. Data support that infection rates tend to be extremely low in both settings.

    doc24p orchid 18-03-2009 56 8   Download

  • The implantable cardioverter defibrillator (ICD), an electric device which includes a pacemaker, has undergone revolutionary changes. Although the device initially was developed only to defibrillate patients with ventricular tachycardia or ventricular fibrillation, who did not respond to antiarrhythmic drug therapy, all current models are able to provide defibrillation, low-energy cardioversion, antitachycardia pacing for ventricular tachycardia termination, and bradycardia pacing backup.

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  • In 1959, Richard P. Feynman, Professor of Physics at the California Institute of Technology and Nobel Laureate, delivered an address at the American Physical Society, which is given the credit for inspiring the field of nanotechnology. Published in Engineering and Science, Feynman’s address entitled “Plenty of Room at the Bottom” described a new field of science dealing with “the problem of manipulating and controlling things on a small scale.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Hybrid approach of ventricular assist device and autologous bone marrow stem cells implantation in end-stage ischemic heart failure enhances myocardial reperfusion...

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  • Flow measurement is a basic tool in industry, engineering and research. The existing applications reveal the evolution and development of new methods and devices through the years. Some of the latest emerging technologies, such as microelectronics and nanotechnology, have put forward new challenges in the flow measurement and are treated at the beginning of this book. This book comprises 8 chapters divided into 4 sections, starting with “microflows”, followed by the “biphasic” and “gas flow”.

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  • The past thirty years have witnessed the birth, growth, and evolution of clinical electrophysiology from a field whose initial goals were the understanding of arrhythmia mechanisms to one of significant therapeutic impact. The development and refinement of implantable devices and catheter ablation have made non-pharmacologic therapy a treatment of choice for most arrhythmias encountered in clinical practice.

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Initial experience with off-pump left ventricular assist device implantation in single center: retrospective analysis...

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Cardiogenic shock associated with loco-regional anesthesia rescued with left ventricular assist device implantation...

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  • Ectopic pregnancy is defined as a pregnancy in which the implantation of the embryo occurs out- side the uterine cavity, most frequently in one of the two fallopian tubes or, more rarely, in the abdo-minal cavity or the cervix .

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Pyoderma gangrenosum after totally implanted central venous access device insertion

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  • The preferred profile to achieve a good compromise between a too high field at the base-collector junction and suppression of the Kirk effect at high current densities is obtained by a retrograde collector profile [30]. For this profile the SIC implantation energy is chosen to obtain a low impurity concentration near the base-collector junction and then increasing toward the subcollector.

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  • Contraceptive methods can be divided into two subgroups as hormonal and non-hormonal. Hormonal contraceptives include combined-oral contraceptives, progestin only pills, hormonal implants, progestin releasing intrauterine systems, depomedroxyprogesterone acetate injections, and vaginal rings. Non-hormonal contraceptive methods include male and female condoms, copper intrauterine device, tubal ligation and vasectomy of the companion. Combined oral contraceptives are a widely used and well accepted form of contraception.

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  • This book is intended for the physician, nurse, student or technician that occasionally comes in contact with patients who have implanted heart rhythm control devices. It is meant as a reference and basic resource to provide quick explanations and answers to situations that are likely to be encountered relating to pacemakers and implantable cardioverter defibrillators.

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  • An organized system of follow-up is important for all device patients and is best facilitated through the patient's membership in a formal pacemaker/ICD follow-up clinic. The first formal clinic follow-up visit is usually scheduled at approximately 3 months after implantation to allow for completion of the lead-tissue maturation process, which may affect sensing and capture thresholds. Reprogramming, to account for any threshold change since implant, and still provide a safety margin along with improved battery life, may be done at that time.

    doc27p orchid 18-03-2009 78 5   Download

  • It has been almost five years since our last edition was published. Much has happened in the world of cardiology and especially device therapy since then. A major advance has been the development of cardiac resynchronization therapy as heralded by the development of biventricular pacemakers and implantable cardioverter defibrillators (ICDs). Cardiac resynchronization therapy represents an important new device therapy for patients with congestive heart failure.

    pdf858p gian_anh 18-10-2012 30 4   Download

  • As seen in Table 7, both Planned Parenthood and other WHP clinics typically offer a comprehensive range of contraceptive methods. The methods include oral contraceptives (the Pill) as well as long-acting reversible contraceptives (LARCs) such as intrauterine devices (IUDs), implants (e.g., Implanon), or injectables (e.g., Depo-Provera). LARCs are particularly important because they are the most effective in preventing unintended pregnancies and have lower failure rates.

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