This document discusses recent developments in microcatheter technology, including new microcatheters from Asahi such as the Corsair Pro XS. It describes design features of various microcatheters like tapered shafts, braided coils, and tip configurations. New devices aim to improve trackability, torque response, and crossability. While microcatheter technology facilitates endovascular techniques, the document notes that further coordinated evolution is still needed between microcatheters and guidewires.

1. Prof Georgios Sianos, MD, PhD, FESC
Aristotle University
AHEPA University Hospital
Thessaloniki, Greece
A’ Cardiology Department
AHEPA University Hospital
Aristotle University
of Thessaloniki
MICROCATHETERS
NEW
DEVELOPMENTS

2. Finecross
Corsair
MICROCATHETERS

3. CORSAIR MICROCATHETER

4. CORSAIR PRO

5. TURNPIKE MICROCATHETER

6. OVERVIEW
OTW catheters with dual-layer coil + braid shaft design
for superior flexibility & torque for delivery over 0.014"
wires
6
Turnpike
superior tracking
in tortuous vessels
Turnpike Spiral
rotational assistance,
trackability
Turnpike Gold
metallic tip for
enhanced advancement
Turnpike LP
low profile & flexible
for extreme tortuosity

7. CARAVEL MICROCATHETER

8. FINECROSS MICROCATHETER
FINECROSS MG
0.7mm
0.7mm

9. MAMBA /MAMBA Flex 135/150

10. NHANCER PRO X MOSQUITO TIP

11. TELEPORT AND TELEPORT CONTROL MC
ORBUS NEICH

12. Straight/FT
Components
Stainless steel braid
enhances deliverability,
flexibility & kink resistance
PTFE inner layer
for superb guidewire
movement & delivery
Tapered distal O.D. = enhanced catheter delivery
through tortuous vessels
VASCULAR SOLUTIONS
TELEFLEX

13. TIP CONFIGURATIONS
SuperCross Angled Tips
• 130cm & 150cm lengths with 45°, 90° & 120° angles
• XT = extended tip lengthened from 0.65mm to 1.75mm to achieve
more secure cannulation – 130cm & 150cm lengths
TELEFLEX

14. TELEFLEX

15. CENTERCROSS AND MULTICROSS
MICRO 14
Jalal S et al, Novel CenterCross and MultiCross devices for the treatment of infrainguinal chronic
total occlusions: initial single-centre experience. EuroIntervention. 2016

16. HISTORY OF ASAHI CORONARY MICROCATHETERS
ASAHI Corsair Pro
• 2017
ASAHI Caravel
• 2016
ASAHI Corsair
• 2011
ASAHI Corsair Pro XS
• 2020
19

17. 0.88~0.95mm
(2.6~2.9 Fr)
Tip portion (A) Proximal portion (C)Distal portion (B)
A B C
Thinner new SHINKA-Shaft – Cross section
0.38 mm
(0.015 inch)
0.38 ~0.48mm
(0.015~0.019 inch)
0.48mm
(0.018 inch)
0.44 mm
(1.3 Fr)
0.71~0.88mm
(2.1~2.6 Fr)
14 wires
braiding
20

18. ASAHI CORSAIR PRO XS - KEY FEATURES
Product Tip Entry profile Distal shaft OD Proximal shaft OD
ASAHI Corsair Pro 0.42mm (1.3Fr) 0.87mm (2.6 Fr) 0.93mm (2.8 Fr)
ASAHI Caravel 0.48mm (1.4Fr) 0.62mm (1.9 Fr) 0.85mm (2.6 Fr)
ASAHI Corsair Pro XS 0.44mm (1.3Fr) 0.71mm (2.1 Fr) 0.95mm (2.9 Fr)
Proximal shaft OD
O.D. 0.95 mm (2.9 Fr)
New SHINKA-Shaft
New SHINKA-Shaft
Innovative rotational shaft design increases
device performance in retrograde approach
Distal shaft OD
O.D. 0.71 mm (2.1 Fr)
21

19. Improved distal tip
• Lower profile and thin tip portion
• Shorter welding between the tip and shaft
• Distal portion with smooth taper
ASAHI Corsair Pro XS
Product Tip Length Tip OD
ASAHI Corsair Pro XS 6.5 mm 0.44mm (1.3 Fr)
High crossability within complex lesions due to the new design of the tip portion.
22

20. Compatibility
23
Recommended GW : 0.36mm (0.014”)
Minimum GC I.D. 1.05mm (0.041”)
 ASAHI Corsair Pro XS× 2 7Fr, 8Fr GC
 ASAHI Corsair Pro XS + IVUS 8Fr GC
 Trapping ASAHI Corsair Pro XS 6Fr GC
23

21. Torqueable
Wire support
Pushability and crossability
Torqueable
Flexibility and trackability
Low profile
ASAHI Microcatheters
24
Non torqueable
Low profile
Flexibility and trackability

22. Confidential to IMDS © IMDS 10/7/2020 NHancer Pro X
NHANCER PRO X UPDATE
SUMMARY
Embedded core wire
comparable to Blimp, ReCross
Double braiding
Tapered shaft design
Improved hydrophilic
coating
High penetration tapered tip
High pushability
1:1 torque response
Gradual increase in flexibility (proximal to
distal)
Lumen integrity
Small inner lumen distally only: trackability
Larger lumen: no resistance with guidewire
Very high lubricity
Small enough + high penetration for crossing
tight lesions, even retrograde
Overview of design Main results

23. Confidential to IMDS © IMDS 10/7/2020 NHancer Pro X
Pushability
Outer Profile
Flexibility
Inner Lumen Diameter
Push Transfer & 1:1 Torque Response
Double braiding
Embedded
core wire
Tapered shaft design
Improved lubricity
TAILORED DESIGN

24. Confidential to IMDS © IMDS 10/7/2020 NHancer Pro X
Unique hybrid guidewire-micro catheter capabilities with locked NHancer Pro X torquer
1. Enhanced guidewire penetration force
2. Enhanced catheter lesion crossing with “rotation-lock-cross” technique.
Hybrid shaft locking with the Pro X NX3 series provides superior performance in regard
to guidewire support and micro catheter lesion crossing.
PATENTED HYBRID SHAFT LOCKING
TORQUER “LOCKING” DEVICE

25. Confidential to IMDS © IMDS 10/7/2020 NHancer Pro X

26. Confidential to IMDS © IMDS 10/7/2020 NHancer Pro X
Push Transfer & 1:1 Torque Response
Crossability
Flexibility increase
Removable stylet
Core wire
White Tip lumen Ø 0.48mm
Braiding
Blue Stylet lumen Ø 0.48mm

27. Confidential to IMDS © IMDS 10/7/2020 NHancer Pro X
Versatile Design
Blue Stylet
lumen Ø
0.48mm
Exit port (#3):
White Tip
lumen
White Tip
lumen Ø
0.48mm
Exit port (#2):
Blue Stylet lumen
White Tip
lumen Ø
0.41mm
Tip (#1)
Removable
Stylet

28. Confidential to IMDS © IMDS 10/7/2020 NHancer Pro X
Versatility

29. PARALLEL WIRE
REENTRY
SUBINTIMAL LUMEN DECOMRESSION
SINGLE CATHETER – MANY OPTIONS

30. Confidential to IMDS © IMDS 10/7/2020 NHancer Pro X
Exit ports designed for
Subintimal Guidewire
Redirection
Subintimal Guidewire Redirection
True lumen
Sub-intimal

31. DUAL LUMEN MICROCATHETERS COMMERCIALLY AVAILABLE

32. GUIDEZILLA GUIDE EXTENSION
1x1 Braid provides extra back-up support without
over-straightening the vessel. Soft, flexible, and
atraumatic tip designed to minimize the risk of
complications to the vessel

33. • Coaxial alignment & backup support
• Distal device delivery
• Selective delivery of contrast
Available sizes:
• 5F, 5.5F, 6F, 7F & 8F
• 6F XL (40cm guide extension)
“Child” guide extension delivered through
“mother” guide with rapid exchange construction
Half-pipe to align devices through collar transition

34. TRAPLINER CATHETER

35. TELESCOPE GCE

36. GUIDION RAPID EXCHANGE GUIDE EXTENSION

37. Proximal shaft change
Current : Round shaft diameter 0.43 (mm)
New : Oval shaft 0.41 mm x 0.50 mm
Distal flex zone
Low density coiling at the distal zone
Transition improvement
Current : Some variation in the steepness of transition
between proximal and distal shaft
New : Completely perfect gradual controlled transition
Proximal end stop color change
Current : White proximal end stop
New : Yellow proximal end stop
IV Generation

38. TRAPPING DEVICES
© IMDS
Shaft stopper Trapper
Shaft stopper TrapIt

39. MICROCATHETER CLASSIFICATION
A B C D E
"Big" "Small" Angulated Dual Lumen Plaque modification
Vammou et al. Expert Rev Med Devices. 2019 Apr;16(4):267-273
CORSAIR PRO XS
NX3

40. CONCLUSION
There is a great evolution in microcatheter
technology both for antegrade and retrograde
approach greatly facilitating the efficacy and
safety of these techniques.
Still microcatheter evolution lacks guidewire
evolution and needs further improvement.

41. CONCLUSION
There is a great evolution in microcatheter
technology both for antegrade and retrograde
approach greatly facilitating the efficacy and
safety of these techniques.
Still microcatheter evolution lacks guidewire
evolution and needs further improvement.