Advantages

01Principle of the Catheter Ablation System

The catheter has a coil electrode inside the balloon. RF energy is delivered between the coil electrode and return pads placed on the patient’s back. As the RF current is concentrated to the electrode inside the balloon, Joule’s heat is produced in the fluid filling the balloon. Myocardial tissue is ablated by the heat conduction from the balloon. Furthermore, the fluid inside the balloon is agitated by fluid flow oscillations generated by the mixing pump attached to the RF generator to maintain a uniform temperature at the balloon surface.

Principle of the Catheter Ablation System [appears twice, in the headline and above the illustration]

Principle of the Catheter Ablation System

Results of the simulated agitation of the fluid inside the balloon

Results of the simulated agitation of the fluid inside the balloon

Agitation achieves uniformity of the temperature of the fluid inside the balloon. (In-house Lab Data)

Ablation experiment using a thermoresponsive gel

Circumferential ablation can be achieved with a single current application by fitting the balloon against the PV ostium and applying heat. (In-house Lab Data)

02Ablation of Tissues by Heat Conduction

As the SATAKE・HotBalloon® Catheter ablates tissue by heat conduction, the tissue temperature will be the highest at the surface in contact with the balloon and will gradually decrease at deeper levels. Accordingly, the heating principle of this product can be said to be of low risk for abnormal rises in temperature inside the tissue.

Temperature around the balloon (The results using phantom, preset temperature: 5 minutes)

Temperature around the balloon (The results using phantom, preset temperature: 5 minutes)

(In-house Lab Data)

03Compliant Balloon

The SATAKE・HotBalloon® Catheter has a flexible, compliant balloon that allows for firm contact with a variety of anatomical configurations. The balloon diameter can be adjusted by injecting varying volumes of diluted contrast medium into the balloon. Recommended filler fluid volumes are 10 mL to 20 mL, and the balloon diameter can be adjusted from 26 mm to 33 mm.

A flexible, compliant balloon

The relationship between fluid volume and balloon size

The relationship between fluid volume and balloon size

Injection Volume 10 mL 12 mL 14 mL 16 mL 18 mL 20 mL
Balloon Diameter 26 mm 28 mm 29 mm 31 mm 32 mm 33 mm

(In-house Lab Data)