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Device-Type
Specialty Balloons
Targated Speciality
Cardiovascular
Manufacturer
Medtronic
Used in Procedure
Angioplasty
The Chocolate™ PTA balloon, the only nitinol-caged balloon with Controlled Dilatation, was designed for 1:1 vessel sizing to minimise flow-limiting dissections and reduce recoil.
As the balloon inflates, the cage causes the balloon to form a series of segmented pillows and grooves along the entire lesion. The pillows apply force to create small dissections that are necessary for effective dilatation. The grooves relieve the stress and stop dissections from propagating.
Features and Benefits
The Chocolate PTA balloon is a semi-compliant balloon that is encased in a nitinol-constraining structure, or cage, that allows for 1:1 vessel sizing.
The cage and the balloon expand simultaneously, so as the balloon unwraps, the cage prevents the balloon from catching on lesions and causing torsional stress and dissections.
During inflation, the cage causes the balloon to dilatate in a controlled manner, alleviating dog-boning and over inflation. The cage also causes the balloon to form a series of segmented pillows and grooves along the entire lesion. The pillows apply force to create small dissections that are necessary for effective dilatation. The grooves relieve the stress and stop dissections from propagating.
Design of Chocolate PTA Balloon Catheter
- INFLATION: During inflation, the cage causes the balloon to form a series of segmented pillows and grooves along the entire lesion.
- BALLOON: Balloon is confined to the cage during inflation, preventing dog-boning and protecting healthy tissue.
- CAGE: Nitinol cage expands with balloon, protecting the vessel from torsional stresses and minimising dissections.
- PILLOWS: The pillows apply force to create small dissections that are necessary for effective dilatation.
- GROOVES: The grooves relieve the stress and stop dissections from propagating.