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Manually Steerable Catheter With Improved Agility.

Geir Arne Tangen1,2,3, Frode Manstad-Hulaas1,2,4, Erik Nypan1,2

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Summary
This summary is machine-generated.

A new steerable catheter prototype successfully cannulated all target visceral arteries in a pilot study. This innovative device shows feasibility for endovascular procedures with minimal radiation exposure.

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Steerable catheterendovascular procedureimage fusionimage registrationvascular cannulation

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Area of Science:

  • Endovascular Surgery
  • Medical Device Technology
  • Interventional Radiology

Background:

  • Endovascular procedures require precise instrument navigation.
  • Visceral artery cannulation presents unique anatomical challenges.
  • Existing steerable catheters may have limitations in control and maneuverability.

Purpose of the Study:

  • To evaluate the feasibility of a prototype steerable catheter for endovascular visceral artery cannulation.
  • To assess the initial performance and safety of the novel catheter in a preclinical model.

Main Methods:

  • A manually steerable 7F catheter with a 90° bending angle and 360° tip rotation was used.
  • Cannulation of the left/right renal arteries, superior mesenteric artery, and celiac trunk in one pig.
  • Image guidance utilized fluoroscopy with 3D overlay from CT angiography.
  • Success defined by successful guidewire placement within the target artery.

Main Results:

  • Successful cannulation of all four target visceral arteries by both operators.
  • Median radiation dose was 4.5 mGy per cannulation with no contrast medium used.
  • Average procedure time was approximately 2 minutes per cannulation.

Conclusions:

  • The prototype steerable catheter is feasible for endovascular visceral artery cannulation.
  • The device demonstrated efficient and safe performance in this pilot study.
  • Further research is warranted to assess reproducibility and explore integration with navigation systems.