犹他100型气动式和贾维克全人工心脏的机械故障。一项对比研究。

Mechanical failures of the pneumatic Utah-100 and Jarvik total artificial hearts. A comparative study.

作者信息

Dew P A, Pantalos G M, Holfert J W, Murray K D, Olsen D B

机构信息

Artificial Heart Research Laboratory, University of Utah, Salt Lake City 84103-1414.

出版信息

ASAIO Trans. 1989 Jul-Sep;35(3):697-9. doi: 10.1097/00002480-198907000-00171.

DOI:10.1097/00002480-198907000-00171

PMID:2597567

Abstract

Jarvik-5 and Jarvik-7 total artificial hearts (TAHs) and Utah-100 TAHs were fabricated and implanted in calves and sheep. In the Jarvik series, 30.7% had mechanical failures (16.1% catastrophic). In the Utah-100 TAH series, 11.1% had mechanical failures (3.7% catastrophic). Failures were classified as: 1) diaphragm failures; 2) valve-holding ring failures; 3) air-leak failures; and 4) prosthetic valve failures. Marked reduction in mechanical failure for the Utah-100 TAH is attributed to progressive component redesign, material selection, and more stringent quality control criteria.

摘要

贾维克-5型和贾维克-7型全人工心脏（TAH）以及犹他-100型全人工心脏被制造出来并植入小牛和绵羊体内。在贾维克系列中，30.7%出现机械故障（16.1%为灾难性故障）。在犹他-100型全人工心脏系列中，11.1%出现机械故障（3.7%为灾难性故障）。故障分类如下：1）隔膜故障；2）瓣膜固定环故障；3）漏气故障；4）人工瓣膜故障。犹他-100型全人工心脏机械故障的显著减少归因于逐步进行的部件重新设计、材料选择以及更严格的质量控制标准。