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The negator pump is a mechanical device that, when used with the flexible plastic infusion bag, generates a constant infusion pressure equal to the hanging bottle. It requires no external power, batteries, keys, or other accessories.
Four commercial nickel-base alloys were implanted in rabbit muscle for periods of 2 to 54 weeks. Biocompatibility and tissue reaction was assessed by histological and histochemical techniques. Results were compared with control implants of AISI Type 316L stainless steel. A prominent and constant...
This paper describes the use of hemodialysis as a laboratory tool in renal-electrolyte research. By using this technique the extracellular fluid volume of an animal can be maintained while blood electrolyte concentrations are changed to desired levels. The affect of these changes on renal...
Continued development and refinement of the artificial kidney system and its components, and improvement in the clinical application of the artificial kidney have been accompanied by general acceptance of hemodialytic therapy as a fruitful modality of treatment for patients with chronic renal...
Studies have been conducted to evaluate the influence of temperature and pressure on Hg loss and structural transitions in Ag-Sn-Hg alloys containing varying amounts of Sn. Hg loss and structural transitions in the alloys that were subjected to heat (100°C) and pressure (193 MN/m 2 ) show that...
With the implementation of new health legislation to cover a significant proportion of the costs of chronic intermittent hemodialysis and renal transplantation, the nephrologist is feeling the pressures of ‘cost effectiveness’ in planning a course of treatment for his patients. However, the...
The Lindholm test, a modified whole blood clotting time test designed to permit estimation of the blood compatibility of biomaterials, has been analyzed statistically with regard to sources of variance and desired sample sizes. Of five materials tested for compatibility with blood, only...
Measurements of the endurance limit of pure and siliconalloyed, isotropic, pyrolytic carbons and a glassy carbon show that, for all the materials, the endurance limit is equal to the single-cycle fracture stress. The endurance limit of a glassy carbon is 25 ksi. The endurance limit of the...
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