Balloon Catheters are used in a Wide Range of Minimally Invasive Diagnostic and Therapeutic Procedures
A balloon catheter is a flexible
device with a balloon at its tip that can be inflated or deflated while in
place to create or enlarge a passageway. It is also used to remove blockages or
open narrowed coronary arteries caused by coronary artery disease. In addition,
balloon catheters can be used for renal denervation, cryoablation, drug
delivery, perfusion, and atherectomy.
Balloon
catheters are used in a variety of minimally invasive diagnostic
and therapeutic procedures, such as dilating vessels, opening blockages, and
delivering stents. When designing a balloon catheter, many factors must be
considered, including the application, type of balloon, type of catheter, and
device performance requirements.
High-pressure (noncompliant)
balloons are typically made of polyester or nylon. They are used in situations
where the balloon must expand to a specific diameter and exert high pressure in
order to open a blockage or dilate the vasculature.
Pebax or higher-durometer
polyurethanes are commonly used to make semicompliant (midpressure) balloons.
They're used in situations where you need mid-high pressures but want more
compliance than a noncompliant balloon and more delivery flexibility.
Polyurethane or silicone are
common materials for compliant (elastomeric) balloon
catheters. Rather than pressure, they are inflated by volume.
They can stretch from 100% to 800% and are frequently used in applications
where the balloon must fully conform to or occlude the anatomy.
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