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https://www.readbyqxmd.com/read/22097264/-design-fabrication-of-porous-core-implant-with-preset-channel-network-for-osteonecrosis-of-the-femoral-head
#1
Weiguo Bian, Dichen Li, Qin Lian, Weijie Zhang, Linzhong Zhu, Kunzheng Wang
Referring to the anatomical characterization of natural spongy bone and channel network in cortical bone, we designed a new pattern of biomimetic impalnt with preset channel for blood vessel inserting to treat early femoral head necrosis. The surgical ptrocedure was simulated by CAD model. Ceramic stereolithography was applied to fabricate the green part. Other process, such as dehydration, rinsing, drying and sintering, were taken successively. The final ceramic part kept identical with the engineered part either in the shape or in the internal structure...
October 2011: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/17684576/the-need-for-studies-to-evaluate-the-reproducibility-of-the-t-wave-alternans-twa-and-the-rationale-for-a-correction-index-of-the-twa
#2
John E Madias
Sudden cardiac death (SCD) due to various cardiomyopathies is currently prevented by the implantation of an automated cardioverter/defibrillator (ICD). ICD impalntation in patients who are not survivors of SCD, or have not suffered potentially lethal ventricular arrhythmias, are based on the presence of cardiomyopathy with a reduced left ventricular ejection fraction. The bulk of patients who are considered suitable for an ICD implantation and receive such devices, do not experience device therapy shocks at follow-up ("false positives"), thus creating a climate of uncertainty among patients and physicians about the soundness of our current eligibility criteria for ICDs...
2007: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/8209031/-experimental-study-of-fecal-excretion-of-nitrogen-in-different-nutritional-conditions
#3
COMPARATIVE STUDY
E L Gonçalves, D L Waitzberg, L R Bevilacqua, V M Burger
Fecal nitrogen excretion in different nutritional conditions were studied in 32 adult Wistar rats, casually distributed in four groups: group A (12), with normal control rats; group B (6), with subcutaneous impalnt of Walker-256 carcinosarcoma, at the beginning of the experiment; group C (8), with tumor implant eight days before the experiment beginning; group D (6), with standard skin wound in 15th day. The animals were fed with normoproteic diet (25% casein content). Nitrogen ingestion and urinary and fecal excretion were daily measured...
August 1993: Revista Brasileira de Biologia
https://www.readbyqxmd.com/read/821205/application-of-aldehyde-treatments-to-cardiovascular-devices
#4
H Kambic, G Picha, R Kiraly, I Koshino, Y Nosé
Biolized natural and synthetic materials represent a new class of materials. Aldehyde treatment of natural tissue creates cross-links in the collagen molecules while retaining mechanical strength and collagen structure. Synthetic polymers can also be biolized by the addition of protein and aldehyde treatment. Cross-linked materials such as these are resistant to degradation by proteolytic enzymes. The procedure for the aldehyde treatment of natural tissue and protein polymer composites has been established, and in vivo and in vitro studies have demonstrated an improved blood compatibility...
1976: Transactions—American Society for Artificial Internal Organs
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