Related Experiment Video
Updated: Jun 12, 2026

4D Printed Bifurcated Stents with Kirigami-Inspired Structures
Published on: July 25, 2019
Dedicated bifurcation devices
David G Rizik1, Kevin J Klassen
1Scottsdale Heart Group, Scottsdale Healthcare Hospital, Scottsdale, AZ, USA.
Insights
New dedicated bifurcation devices aim to improve treatment for coronary bifurcation lesions, a common challenge. These devices focus on the side branch ostium, a frequent site of restenosis, showing promise in early studies.
Area of Science:
- Interventional Cardiology
- Cardiovascular Devices
- Biomaterials
Background:
- Coronary bifurcation lesions present a significant treatment challenge with no established optimal strategy.
- The side branch ostium is a common site for restenosis, driving the need for improved interventions.
- Main branch outcomes are favorable due to advanced techniques and drug-eluting stents.
Purpose of the Study:
- To review emerging dedicated bifurcation devices for treating coronary bifurcation lesions.
- To highlight the focus on side branch ostium access and coverage in new device designs.
- To assess the potential of these novel devices based on early clinical findings.
Main Methods:
- Review of current literature and company-evaluated dedicated bifurcation devices.
- Analysis of device concepts, including stent platform (bare metal vs. drug-eluting) and side branch ostium coverage.
- Examination of early results from single-arm clinical studies evaluating device performance.
Main Results:
- Dedicated bifurcation devices are being developed with varied designs for side branch access.
- Both bare metal and drug-eluting iterations of these devices are under investigation.
- Early single-arm studies suggest promise for these dedicated bifurcation devices.
Conclusions:
- Dedicated bifurcation devices offer a potential solution for challenging coronary bifurcation lesions.
- Focusing on the side branch ostium is key to reducing restenosis rates.
- Further clinical evaluation is warranted to confirm the efficacy and safety of these novel devices.
Abstract:
Coronary bifurcation lesions are a common challenge for interventional cardiologists, for which there is no clear consensus on optimal treatment. The side branch (SB) ostium has become the focus of new treatment strategies because it is a common site of restenosis. In comparison, restenosis and reintervention rates in the main branch are acceptably low, reflecting improved techniques and greater use of drug-eluting stents. Many different companies are evaluating dedicated bifurcation devices that are designed to offer easy access to the SB, but that differ in concept and in the degree of coverage provided to the SB ostium. Some are bare metal stents, whereas several are drug-eluting iterations based on platforms used in conventional stents. The promise of these dedicated bifurcation devices is illustrated by early results from single-arm clinical studies.
Related Concept Videos
Directional Relays
Schottky Barrier Diode
Reclosers and Fuses
A comprehensive protection scheme for radial distribution...
Differential Relays
Bridge rectifier
Operationally, the bridge rectifier allows current flow through two of its diodes during each...
Bipolar Junction Transistor
The structure...

