It is generally believed that the Palmaz-Schatz stent maintains a strong radial force, preventing stent recoil. However, the capacity to prevent recoil is largely governed by the hardness or resistance of the lesion. We report two cases of "acute Palmaz-Schatz stent recoil," documented by intravascular ultrasound, and suggest a novel treatment of this unusual problem.
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http://dx.doi.org/10.1002/(SICI)1097-0304(199603)37:3<334::AID-CCD27>3.0.CO;2-G | DOI Listing |
Cardiovasc Revasc Med
November 2023
Division of Cardiology, NewYork-Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY, USA; Weill Cornell Medical College, New York, NY, USA. Electronic address:
J Biomed Mater Res B Appl Biomater
September 2021
Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi, India.
In the present research, the effectiveness of developed methodology based on solvent cast 3D printing technique was investigated by printing the different geometries of the stents. The carbonyl iron powder (CIP) reinforced polycaprolactone (CIPC) was used to print three pre-existing stent designs such as ABBOTT BVS1.1, PALMAZ-SCHATZ, and ART18Z.
View Article and Find Full Text PDFMed Eng Phys
August 2020
NEST, Istituto Nanoscienze-CNR, Piazza San Silvestro 12, Pisa 56127, Italy. Electronic address:
Since theoretical models provide data that cannot be otherwise gathered, numerical methods applied to medical devices analysis have emerged as fundamental tool in preclinical development. Large efforts were done to study mechanical and drug-eluting properties in stents but often the coating modelling is neglected. This work presents a finite element framework to calculate mechanical loads and drug distribution in three commercial drug-eluting stents (Palmaz-Schatz, Palmaz Genesis and Multi Link Vision), to check coatings strength and drug distribution maps in biological tissues.
View Article and Find Full Text PDFFront Bioeng Biotechnol
December 2019
Biomechanics Laboratory, School of Biological Science & Medical Engineering, Southeast University, Nanjing, China.
Coronary artery stenting is commonly used for the treatment of coronary stenosis, and different stent structures indeed have various impacts on the stress distribution within the plaque and artery as well as the local hemodynamic environment. This study aims to evaluate the performance of different stent structures by characterizing the mechanical parameters after coronary stenting. Six stent structures including three commercially-shaped stents (Palmaz-Schatz-shaped, Xience Prime-shaped, and Cypher-shaped) and three author-developed stents (C-Rlink, C-Rcrown, and C-Astrut) implanted into a curved stenotic coronary artery were investigated.
View Article and Find Full Text PDFBiomed Mater Eng
December 2017
Fatigue and Fracture Research Lab, School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran.
Background: Stenting has been proposed as an effective treatment to restore blood flow in obstructed arteries by plaques. Although several modified designs for stents have been suggested, most designs have the risk of disturbing blood flow.
Objective: The main objective is to propose a stent design to attain a uniform lumen section after stent deployment.
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