Download Artificial Heart 2: Proceedings of the 2nd International by Tetsuzo Akutsu, Hitoshi Koyanagi, Setsuo Takatani, Kazunori PDF

By Tetsuzo Akutsu, Hitoshi Koyanagi, Setsuo Takatani, Kazunori Kataoka, Jack G. Copeland, Stuart L. Cooper, Peer M. Portner, David B. Geselowitz

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Read Online or Download Artificial Heart 2: Proceedings of the 2nd International Symposium on Artificial Heart and Assist Device, August 13–14, 1987, Tokyo, Japan PDF

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Extra resources for Artificial Heart 2: Proceedings of the 2nd International Symposium on Artificial Heart and Assist Device, August 13–14, 1987, Tokyo, Japan

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10 shows SEM tion of ionic groups. Interactions of cationic groups of images of the sutures implanted in a canine vein for the polymer, such as quaternary ammonium groups, 90 days. The surface of the ionically heparinized with anionically charged biocomponents were so polyurethane suture is very clear without any atstrong that the higher the surface concentration of tachment of a thrombus. On the other hand, on cationic groups, the lower the antithrombogenicity of the covalently heparinized polyurethane suture, the the material.

The procedure is summarized only briefly here. Platelet-rich plasma (PRP; platelet concentration ca. 2-3 x 108 cells/cm3 ) was prepared from the citrated blood of male Japanese white rabbits. 5 mmol/1. The recalcified PRP was continuously added to a polyvinyl chloride column (3 mm inner diameter and 10 em long) packed with 1 g of polymer-precoated glass beads ( 48-60 mesh) until the column was occluded by thrombosis or all of the PRP in the syringe was consumed. 2 cm3fmin with the use of an infusion pump (Precidol, model5003).

Segmented polyurethane soft hard soft ~ ~-OH -OR ~ 0 II -NHC-R' HR' ... c~J R' = -NH-R-Si[O{SiO)n]J I CH 3 HO ~OH + Poly bd ~ Polyurethaneurea PolybdUU O=C=N-@-CHrQN=C=O N=C=O I S02Cl ~ Fig. 3. Synthetic method for polyurethanes containing polydimethyl siloxane as side chains + 1 ,2-propanediamine ¥ H H NaOH J,i -cH 2 -C-t-cHr ~ -CH 2 -;::-q-CHr I o NH N-C=O I I ONa so 2 c1 S0 3 Na y=O Fig. 4. Synthetic method for polyurethanes containing NHS0 3 H and COOH substituents Design and synthesis of blood-compatible polyurethane derivatives Fig.

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