Document Detail

Development of a safe guidewire.
MedLine Citation:
PMID:  16421683     Owner:  NLM     Status:  MEDLINE    
As the result of a locking phenomenon that may occur in a guidewire inside a metal puncture needle when using the Seldinger technique to insert a central venous catheter, the guidewire can break and cause an embolism. To counter this possibility we devised a guidewire with a structure that made it difficult for locking to occur and compared it to conventional guidewires. Conventional guidewires are wound lengthways with a spring. The improved version has a special multi-ply structure. A series of 100 cases were divided into two groups: group A, the conventional guidewire group; and group B, the improved guidewire group. We punctured the internal jugular vein and attempted insertion of the guidewire through the side hole of a 22-gauge metal needle. We then compared the frequency of locking and the frequency of bending of the guidewire tips that have been withdrawn. In group A, locking occurred in 72% of the cases where the guidewire was unable to be inserted, but this figure was 0% in group B. The improved guidewire has the advantage of reducing the risk of locking and of guidewire breakage.
Toshiyasu Suzuki; Kenji Ito; Junichi Nishiyama; Keiichiro Hasegawa; Masahiro Kanazawa; Haruo Fukuyama
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of anesthesia     Volume:  20     ISSN:  0913-8668     ISO Abbreviation:  J Anesth     Publication Date:  2006  
Date Detail:
Created Date:  2006-01-19     Completed Date:  2006-03-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8905667     Medline TA:  J Anesth     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  64-7     Citation Subset:  IM    
Department of Anesthesiology, School of Medicine, Tokai University, Boseidai, Isehara 259-1193, Japan.
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MeSH Terms
Catheterization, Central Venous / instrumentation*
Equipment Design

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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