
ASAHI Corsair® ProProduct Code (REF): CSR135-26P
ASAHI Corsair® Pro is the most widely used microcatheter in coronary CTO intervention globally. Unlike conventional microcatheters that are pushed forward over a guidewire, the Corsair Pro's braided shaft is designed to be rotated — the interwoven strands twist into the tissue like a drill bit, allowing the catheter to advance through fibrocalcific occlusion segments that would collapse a non-rotatable platform. The 1.3F tip and 2.6F distal shaft make it crossable through tight, calcified stenoses, while the 0.019 in inner lumen accepts a 0.014 in guidewire with room for contrast injection. In CTO procedures, Corsair Pro serves three roles: (1) guidewire back-up support during antegrade and retrograde crossing, (2) guidewire exchange once a wire has crossed, and (3) the rotational drilling tool itself when the occlusion body is fibrous enough to require a physical breakthrough force beyond what a guidewire tip can provide. The 60 cm hydrophilic coating enables free advancement once the tip has penetrated the occlusion body. It is the standard companion to all Asahi CTO wires including the Fielder series, Gaia series, and Confianza Pro. Corsair Pro is available in 135 cm and 150 cm working lengths, with an 0.38 mm (0.015 in) tip inner diameter and 0.45 mm (0.018 in) shaft inner diameter.
Available under product codes CSR135-26P, CSR150-26P.
Sizes & Specifications
- Outer diameter
- 1.3F tip / 2.6F distal shaft
- Inner lumen
- 0.019 in
- Working length
- 135 cm / 150 cm
- Design
- Braided, rotatable shaft
Manufacturer: Asahi Intecc Co., Ltd. · Reference source: medical.asahi-intecc.com
Design & Technology
Technical characteristics and diagrams as published by Asahi Intecc.
Tracking ability
Optimaization of catheter stiffness Compare to Corsair, the Corsair Pro's stiffness profile has a more linear increase which improves the catheter flexibility and trackability for enhances performance in tortuous anatomy.

Balanced joint design
Gradual balance of stiffness from the tip to the joint of the shaft area enhances tracking ability.

Kink resistance at proximal shaft
Spiral Protector Flexibility of the proximal hub is improved to protects the proximal shaft when bent during catheter advancement or withdrawal.

Torque ability, Pushability and Support
SHINKA-Shaft ASAHI brand proprietary braiding pattern, which consists of 8 thinner and 2 thicker wires braided together. Tungsten braiding enhances torque, better push and support.

Limited rotation
Do not rotate the catheter in the same direction, clockwise or counterclockwise, more than 10 times.

Structure

Product Identification & Specifications
Reference identifiers for procurement, registration and tender documentation.
| Product Code | CSR135-26P |
|---|---|
| REF Numbers | CSR135-26P, CSR150-26P |
| Manufacturer | Asahi Intecc Co., Ltd. |
| Brand | Asahi Intecc |
| Product Family | Coronary Microcatheters & Guide Catheters |
| Country Availability | Tajikistan, Afghanistan |
Clinical Applications
The ASAHI Corsair® Pro is a coronary microcatheter in the Coronary Microcatheters & Guide Catheters family from Asahi Intecc Co., Ltd., used by interventional specialists in procedures where a coronary microcatheter of this class is indicated. It is supplied in 2 configurations (catalog codes CSR135-26P through CSR150-26P) to match anatomical and procedural requirements.
For the complete indications for use, contraindications and instructions for use (IFU), request the official Asahi Intecc documentation through our clinical team. Modern Medical Solutions supplies the ASAHI Corsair® Pro to hospitals and cath labs across Tajikistan and Afghanistan.
Ordering Information
Catalog reference codes as published by Asahi Intecc. Contact us to confirm current availability.
| Product Name | Catalog No. | Usable Length | Tip(O.D) | Distal Shaft(O.D) | Proximal Shaft(O.D) | Tip(I.D) | Shaft(I.D) | Hydrophilic Coating Length |
|---|---|---|---|---|---|---|---|---|
| ASAHI Corsair Pro | CSR135-26P | 135cm | 0.42mm (1.3Fr) | 0.87mm (2.6Fr) | 0.93mm (2.8Fr) | 0.38mm (0.015") | 0.45mm (0.018") | 60cm |
| ASAHI Corsair Pro | CSR150-26P | 150cm | 0.42mm (1.3Fr) | 0.87mm (2.6Fr) | 0.93mm (2.8Fr) | 0.38mm (0.015") | 0.45mm (0.018") | 60cm |
Downloads & Documentation
Instructions for use (IFU), technical datasheets and clinical literature for the ASAHI Corsair® Pro are available on request from our clinical team.
Request DocumentationFrequently Asked Questions
- What is the ASAHI Corsair® Pro and what is it used for?
- ASAHI Corsair® Pro is the most widely used coronary microcatheter in CTO intervention globally. Unlike conventional microcatheters that are pushed forward, Corsair Pro is rotated — its braided shaft drills through fibrous and calcified CTO segments. It serves three roles: guidewire back-up support during antegrade/retrograde crossing, guidewire exchange capability, and an independent crossing tool when the occlusion body is fibrous enough to require drilling advancement.
- What are the catalog numbers for ASAHI Corsair® Pro?
- ASAHI Corsair Pro is available in two lengths: CSR135-26P (135 cm working length) and CSR150-26P (150 cm working length). Both have a 1.3F tip OD (0.42 mm), 2.6F distal shaft OD (0.87 mm), 0.38 mm (0.015 in) tip ID, and 0.45 mm (0.018 in) shaft ID, with 60 cm hydrophilic coating.
- What is the inner diameter of Corsair® Pro and which guidewires are compatible?
- Corsair Pro has a tip inner diameter of 0.015 in (0.38 mm) and shaft inner diameter of 0.018 in (0.45 mm). It is compatible with all standard 0.014 in coronary guidewires including the full Asahi Intecc range: SION series, Fielder series, Gaia series, Confianza Pro, and GRAND SLAM. The larger shaft ID allows contrast injection through the microcatheter while the guidewire is in place.
- What is the difference between Corsair® Pro and Corsair® Pro XS?
- Corsair Pro has a 2.6F distal shaft; Corsair Pro XS has a 2.1F distal shaft — a 20% reduction in distal profile. Both have the same 1.3F tip. Corsair Pro XS is preferred when anatomy requires the smallest possible crossing profile, such as very tight CTO proximal caps or heavily calcified anatomy where the 2.6F shaft of the standard Pro cannot advance. Corsair Pro is the standard choice and handles the large majority of CTO cases.
- How is Corsair® Pro used in retrograde CTO PCI?
- In retrograde CTO PCI, Corsair Pro is advanced retrogradely via a collateral (septal or epicardial) channel into the CTO body, providing a retrograde access platform for wire externalization (RWE technique). The microcatheter's rotational drilling capability helps navigate tortuous collaterals, and its guidewire exchange function allows the retrograde wire to be exchanged for an externalization wire once it has passed through the occlusion.
- Where can I order ASAHI Corsair® Pro?
- Modern Medical Solutions is the authorised Asahi Intecc distributor for Tajikistan and Afghanistan. Submit ordering and documentation requests through our contact form. For global distributor information, visit medical.asahi-intecc.com.


