ASAHI Corsair Microcatheter

Originally developed as a septal channel dilator, to ease retrograde approaches for CTO-PCI, ASAHI Corsair is a unique device that can be used both as a microcatheter and as a support catheter.


Benefits and Features

Crossing/dilation of tortuous micro channels

1. Tip Flexibility - Tapered Soft Tip
Provides superior tip flexibility which enables smooth approaches to narrow tortuous vessels, such as septal channels or other microchannels.


2. Pushability, Trackability, Support - SHINKA-Shaft
SHINKA-Shaft is an ASAHI brand proprietary braiding pattern, which consists of 8 thinner wires wound with 2 larger ones. This provides far superior pushability, trackability, and support for crossing small, tortuous channels.


3. Lubricity - Hydrophilic Polymer Coating
Polymer coating from the tip to 60cm provides lubricity and enhances maneuverability. Not coating the proximal end allows for better control and anchoring of the catheter.


4. Visibility & Maneuverability - Tapered Soft Tip & Tungsten Braiding

  • Tungsten powder
  • Marker closer to the distal tip
Enhances visibility and safety

5. Visibility & Maneuverability - Tapered Soft Tip & Tungsten Braiding
The braiding enhances torqueability, while the tungsten braiding provides superior visibility.


6. Rigidity and Pushability - Reinforced Tapered Shaft
The grade and the thickness of the polyamide elastomer resin are gradually increased to provide optimal rigidity and pushability at the proximal shaft.


Dimensions


Advancement & Rotation

  1. Always advance the guide wire ahead of ASAHI Corsair during manipulation.
  2. Make sure to hold a torque device at all times to avoid ASAHI Corsair and the guide wire to be rotated together.
  3. Do not use both hands to rotate to avoid over torque. Use only one hand to rotate ASAHI Corsair.
  4. Constantly check ASAHI Corsair tip under fluoroscopy to make sure that the tip of ASAHI Corsair is not trapped by the lesion.

Warnings & Cautions

  1. Always make sure the number of rotation at the proximal part and the distal part are equal to avoid torque accumulation.
  2. Constantly check the torque accumulation at the tip under fluoroscopy before continuing the rotation.
  3. Constantly check of ASAHI Corsair tip under fluoroscopy to make sure that the tip of ASAHI Corsair is not trapped by the lesion. If it is trapped, ASAHI Corsair tip does not advance.
  4. Limit the rotation of ASAHI Corsair to 10 times in one direction. To continue advancing ASAHI Corsair, rotate the opposite direction.

Removal

  1. Unlike Tornus, ASAHI Corsair can be removed following the same step as the general microcatheters, such as counter-flush technique (Nanto-Method).
  2. Carefully rotate ASAHI Corsair while removing until the Corsair enters the guiding catheter. Make sure the guide wire is not removed with ASAHI Corsair.

Guide Wire & Catheter Compatibility

Maximum Guide Wire Diameter: 0.014" (0.36mm)
Minimum Guiding Catheter: 5Fr (0.041"/1.05mm)