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PTCA balloons

Different type of PTCA / PTA Balloons

  • Noncompliant (high-pressure) balloons are typically made of polyester or nylon. They’re used for applications in which the balloon needs to expand to a specific diameter and exert high pressure to open a blockage or dilate the vasculature.
  • Semicompliant (midpressure) PTCA balloons are commonly made of Pebax or higher-durometer polyurethanes. They’re used in applications in which you need mid-high pressures but want more compliance than a noncompliant balloon and more flexibility to ease delivery.
  • Compliant (elastomeric) balloons are typically made of polyurethane or silicone. They are inflated by volume, rather than pressure. Able to stretch 100% to 800%, they are often used in applications that require the balloon to fully conform to or occlude the anatomy.

Performance requirements
While there are many performance characteristics to consider in a catheter design, some key properties include the following:

  • Inflation/deflation is the time it takes to inflate and deflate a PTCA balloons. To minimize this time, design the catheter to maximize the cross sectional area of the inflation lumen.
  • Trackability is the catheter’s ability to advance through the anatomy to reach the treatment site. This is especially important for tortuous anatomy, such as in neurological applications.
  • Insertion profile is the space needed to insert the catheter into the anatomy. The smaller the insertion profile, the smaller the incision site, which expedites the patient’s healing and recovery process.

These performance characteristics are often interrelated. For example, you can minimize inflation and deflation rates by increasing the diameter of the tubing. However, this also increases the catheter’s insertion profile.

The wide range of design considerations for balloon catheters can be can be daunting. An experienced contract manufacturing organization that specializes in the design, development, and manufacturing of balloon catheters can help guide you through the process of bringing your innovative technology to market.

Balloon catheters are widely used in a range of minimally invasive medical procedures, both therapeutic and diagnostic. These include delivering stents, opening blockages, and dilating vessels. Being very specialized, non invasive medical devices of high precision,balloon catheters production requires extensive know how. In this article, we discuss the design considerations, as well as take a look at manufacturing overview of balloon catheters.

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