New stent delivery balloon: A technical note

Carlo Di Mario, Bernhard Reimers, Robert Reinhardt, Massimo Ferraro, Issam Moussa, Antonio Colombo

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


This study reports the first clinical application of a new noncompliant balloon composed of a middle polyurethane layer sandwiched between an inner layer of polyethylene terephtalate and an outer membrane that provides for consistent even expansion. With this balloon design, the very low compliance and high pressure resistance of polyethylene terephthalate are associated with the high elasticity of polyurethane, preventing balloon damage from stent crimping end expansion end allowing a firm embedding of the stent struts. Palmaz-Schatz stent implantation was successful in 33/35 stents (94%), and the two stents that could not be advanced up to the lesion were successfully withdrawn. High pressure expansion of the stent was obtained during deployment with no balloon ruptures at inflation pressures equal or lower than 16 atmospheres (atm). Accurate positioning of the stent was facilitated by the two markers st the balloon ends and by the optimal visualization after contrast injection, even with 6 Fr guiding catheters. This new delivery system maintains the advantages of hand-crimped stents on noncompliant balloons, reducing the risk of stent loss.

Original languageEnglish (US)
Pages (from-to)452-456
Number of pages5
JournalCatheterization and Cardiovascular Diagnosis
Issue number4
StatePublished - Dec 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine


  • Balloon angioplasty
  • Balloon catheters
  • Coronary stenting


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