Fielder® XT-A/XT-R
CTO coronary guidewire · Coronary Guidewires

Fielder® XT-A/XT-RProduct Code (REF): APW14R009S

Fielder® XT-A and Fielder® XT-R are second-generation refinements to the Fielder XT CTO guidewire platform, each addressing a specific gap in the original wire's performance. Fielder XT-A (Advanced) stiffens the proximal shaft relative to Fielder XT while keeping an identical tapered tip geometry — the result is improved pushability and column strength once an initial path has been identified, allowing the wire to advance further into the occlusion without the buckling that sometimes occurs when pushing a softer shaft against a resistant lesion. Tip load on XT-A is approximately 1 gf, up from XT's 0.8 gf. Fielder XT-R (Reverse) takes the opposite approach: it softens the tip to approximately 0.6 gf while keeping the same proximal shaft stiffness as XT-A. XT-R is preferred when the antegrade wire has already crossed the occlusion and is suspected to be in a subintimal space — the softer tip allows controlled re-entry into the true lumen with less risk of perforation than a higher-load wire. Both wires share the same 0.010/0.014 in tapered tip, 17 cm polymer + hydrophilic coating, and are available in 190 cm and 300 cm lengths.

Available under product codes APW14R009S, APW14R309S, APW14R005S, APW14R305S.

Sizes & Specifications

Diameter
0.014 in (0.36 mm)
Usable length
190 cm / 300 cm
Tip load
1 gf (XT-A) / 0.6 gf (XT-R)
Coating
Polymer + full-length hydrophilic

Manufacturer: Asahi Intecc Co., Ltd. · Reference source: medical.asahi-intecc.com

Design & Technology

Technical characteristics and diagrams as published by Asahi Intecc.

Trackability

Flexibility & control provide trackability XT-R had better performance for the channel tracking

Fielder XT-A/XT-R — Trackability diagram (official manufacturer illustration)

Torque Response

It provides better control ability by fixing guide wire tip to the right direction.

Fielder XT-A/XT-R — Torque Response diagram (official manufacturer illustration)

Small tip shapeability

It provides the potential for the loose tissue and collateral channel tracking by a small curve and tapered tip.

Fielder XT-A/XT-R — Small tip shapeability diagram (official manufacturer illustration)

Structure

Full-length structure diagram of Fielder XT-A/XT-R (official manufacturer illustration)

Product Identification & Specifications

Reference identifiers for procurement, registration and tender documentation.

Product CodeAPW14R009S
REF NumbersAPW14R009S, APW14R309S, APW14R005S, APW14R305S
ManufacturerAsahi Intecc Co., Ltd.
BrandAsahi Intecc
Product FamilyCoronary Guidewires
Country AvailabilityTajikistan, Afghanistan

Clinical Applications

The Fielder® XT-A/XT-R is a cto coronary guidewire in the Coronary Guidewires family from Asahi Intecc Co., Ltd., used by interventional specialists in procedures where a cto coronary guidewire of this class is indicated. It is supplied in 4 configurations (catalog codes APW14R009S through APW14R305S) 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 Fielder® XT-A/XT-R 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 NameFielder XT-A
Catalog No.APW14R009S
Tip ShapeStraight
Usable Length190cm
Outer Diameter0.26/0.36mm (0.010/0.014")
Coil Length16cm
Radiopaque Length16cm
CoatingPolymer+Hydrophilic
Coating Length17cm
Product NameFielder XT-A
Catalog No.APW14R309S
Tip ShapeStraight
Usable Length300cm
Outer Diameter0.26/0.36mm (0.010/0.014")
Coil Length16cm
Radiopaque Length16cm
CoatingPolymer+Hydrophilic
Coating Length17cm
Product NameFielder XT-R
Catalog No.APW14R005S
Tip ShapeStraight
Usable Length190cm
Outer Diameter0.26/0.36mm (0.010/0.014")
Coil Length16cm
Radiopaque Length16cm
CoatingPolymer+Hydrophilic
Coating Length17cm
Product NameFielder XT-R
Catalog No.APW14R305S
Tip ShapeStraight
Usable Length300cm
Outer Diameter0.26/0.36mm (0.010/0.014")
Coil Length16cm
Radiopaque Length16cm
CoatingPolymer+Hydrophilic
Coating Length17cm

Downloads & Documentation

Instructions for use (IFU), technical datasheets and clinical literature for the Fielder® XT-A/XT-R are available on request from our clinical team.

Request Documentation

Frequently Asked Questions

What is Fielder® XT-A and how does it differ from Fielder XT?
Fielder® XT-A (Advanced) is a second-generation refinement of Fielder XT that stiffens the proximal shaft while keeping an identical tapered 0.010/0.014 in tip geometry. The result is improved pushability and column strength — the wire can advance further into the occlusion body without buckling once a microchannel entry point has been identified. Tip load on XT-A is approximately 1.0 gf, up from XT’s 0.8 gf.
What catalog numbers are available for Fielder® XT-A?
Fielder XT-A: APW14R010S (Straight, 190 cm) and APW14R310S (Straight, 300 cm). Fielder XT-R: APW14R005S (Straight, 190 cm) and APW14R305S (Straight, 300 cm). All four share a 0.010/0.014 in tapered outer diameter, 16 cm coil length, 16 cm radiopaque segment, and 17 cm polymer + hydrophilic coating.
When should I use Fielder XT-A versus Fielder XT-R?
Use Fielder XT-A when the standard Fielder XT has found a microchannel path but lacks the pushability to advance far enough into the occlusion body — XT-A’s stiffer proximal shaft gives the additional column strength needed. Use Fielder XT-R when the antegrade wire has crossed the occlusion and is likely subintimal — XT-R’s softer 0.6 gf tip allows controlled re-entry into the true lumen with lower perforation risk than a higher-load wire.
What microcatheter pairs best with Fielder XT-A?
Fielder XT-A is used with a supportive microcatheter immediately behind it — typically ASAHI Corsair Pro or Caravel. The microcatheter prevents buckling under the XT-A’s higher column load, enables guidewire exchange once the wire has crossed, and can be advanced independently into the occlusion body using its rotational drilling motion.
What is the coating on Fielder XT-A?
Fielder XT-A has a polymer jacket over the proximal shaft with a 17 cm polymer + hydrophilic coating on the distal segment. The polymer jacket is the key difference from the original Fielder XT (which uses a full hydrophilic coating): by stiffening the shaft, it provides the pushability improvement that defines the XT-A over the base XT.

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