New Guidewire With a Remote Controlled Flexible Tip

New Guidewire With a Remote Controlled Flexible Tip

Minimally invasive vascular surgery and endovascular procedures depend very much on the clinician guiding catheters through vasculature simply by rotating the wire that has a bent tip at the end, and basically shoving it down the intended side of a bifurcation.

Computer Vision Systems Laboratories out of Boca Raton, Florida has developed a guidewire the tip of which can be remotely manipulated to bend just as much as you want, allowing more control when navigating through difficult vasculature.

Details of the patented technology from the product page:

  1. Based on “Buckling” theory.
  2. Tip bent according to the force applied to it.
  3. Made of super elastic NiTi (nickel titanium), PTFE (Teflon), coated coil and 0.15 mm wire.
  4. Wire attached to soft tip.
  5. Distral end of the coil is treated so that when the inner wire is pulled the tip buckles and bends accordingly.Coated coiled spring includes a wire which is attached to both ends of the spring.
  6. Coils near the tip are spread apart.
  7. One side is filled with a coating plastic material which allows the tip of the coiled springs, when pulled, to bend into the unfilled direction.
  8. The tip is bent by pulling back the wire.
  9. Spreading the spring coils apart, in the proximal end, by the handle, pushes the wire back causing it to pull the tip.

Steerable Guidewire

CVSL has entered into an agreement with a leading guidewire fabrication company to construct a working prototype of our patented device. This agreement will give CVSL the ability to prove out the design and to conduct demonstrations of the device for other interested parties and potential strategic partners.

Current Existing Guidewire Solutions:

  1. Guidewire is slender flexible metal wire with very soft tip (usually a coil).
  2. Bent prior to insertion into arteries.
  3. Surgeon manipulates the guidewire back and forth in order to insert the tip into the desired branch when in bifurcation.

General Limitations of Current Guidewire Solutions:

The basic purpose of guidewires are to guide catheters through arteries. In many cases, a coated coiled guidewire is used, with or without bending the distal tip. Using current solutions:

  1. It may be difficult to direct the tip into the desired branch at bifurcation of the artery.
  2. To bend & rotate the guidewire the surgeon has to manipulate the part which protrudes from the body with his fingers.
  3. Diameter of the guidewire is very small and the area is slippery with blood, so directing the tip to the desired angle is often difficult, time consuming and potentially harmful to the patient.

CVSL’s Guidewire Solution:

  • Based on “Buckling” theory.
  • Tip bent according to the force applied to it.
  • Made of super elastic NiTi (nickel titanium), PTFE (Teflon), coated coil and 0.15 mm wire.
  • Wire attached to soft tip.
  • Distral end of the coil is treated so that when the inner wire is pulled the tip buckles and bends accordingly.

CVSL Guidewire Operating Principles:

  • Coated coiled spring includes a wire which is attached to both ends of the spring.
  • Coils near the tip are spread apart.
  • One side is filled with a coating plastic material which allows the tip of the coiled springs, when pulled, to bend into the unfilled direction.
  • The tip is bent by pulling back the wire.
  • Spreading the spring coils apart, in the proximal end, by the handle, pushes the wire back causing it to pull the tip.

Source : http://cvslab.com/guidewire-info.php

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