WinMed, Inc.

Presenting the VariSoft In Vivo Tip Controllable Tapered Steerable Guide Wire for Interventional Cardiology

Providing in vivo variable tip shape, variable tip support and variable tip push.

From this day forward, the only guide wire your laboratory will require for coronary interventional procedures.

VariSoft is:

   Very reliable, one continuous core welded at the tip 

      Very simple, use as any standard steerable wire

         Very adaptable, an approach and crossing wire

            Very accurate, control for directing/torqueing

               Very cost effective, saving time and money

                  Very Safe, the flexibility/softness of a .010"


Below you may click on a link to allow you to view a brief but explanatory video of the VariSoft wire approaching an artificial clot in a vessel and in the relaxed state with the curve pre-formed by the user it will not cross the clot demonstrating the softness and safety of the wire. The DASH handle is then actuated and the wire becomes stiffer and more supportive as the tip is straightened and the wire is easily advanced through the clot demonstrating the enhanced crossing power. After crossing the clot the DASH is again operated to relax the tip allowing the curve to reform for advancing safely further down the vessel for added anchoring and to allow a more supportive section of the spring to be positioned in the area of the lesion provideing enhanced catheter support. At this point the DASH may be actuated to add even more lateral support for the catheter in the area of the lesion. Following a successful intervention the DASH may again allow the spring to relax and reform the curve to steer to another lesion wherein the procedure may be repeated, thus demonstrating use of VariSoft to facilitate reaching a lesion safely and then crossing the lesion and then safely adding the support necessary to allow advancing the catheter through the lesion.
http://dl.dropbox.com/u/3843631/torsomovie.MPG

VariSoft allows for independent torque to just the distal spring segment and control of the tip shape, support, and push using the proximal DASH steering handle supplied with VariSoft.

By retracting a restraining core wire, which is attached to the smooth ball welded tip of VariSoft and extending down the central axis of VariSoft to the proximal DASH handle, the physician, with one hand operation of the DASH handle, may control the VariSoft tip characteristics in vivo. Retracting the core is likened to pulling on a guy wire attached to the distal end of VariSoft, thus tensioning the distal spring segment to achieve greater column strength. The greater column strength gives more radial and axial support and thus straightens and adds more push and more support to the entire 35 cm spring tip. This allows VariSoft to exhibit greater strength properties than would normally be available in comparable small diameter guide wires. 

When the core is relaxed to allow the tip to resume the user-formed curve, VariSoft is softer and more flexible than standard wires because the entire spring segment is free floating over a smaller diameter core. The core and outer spring taper to a smaller diameter .010" tip resulting in a very supple and very safe guide wire and yet has greater torque than a standard wire because of two means of torque by using the DASH dual collets.

So, by using the central core, VariSoft provides a means for mechanical advantage over fixed wires in being softer when relaxed and firmer when tensioned than standard wires. VariSoft also capitalizes on the mechanical advantage of concentrating the forces of a .014" wire into the smaller .010" tip to enhance crossing tight lesions because of not only a lower profile, but enhanced push and control of the body of a .014" directed to the smaller area of a .010" tip, for a concentration of the force.

Utilizing the DASH handle to control the VariSoft tapered tip is similar to threading a needle by forming a pointed tip in the thread for a lower profile and holding the thread close to the opening to provide greater force/rigidity near where the thread will be advanced through the narrow opening of the needle. The tip of VariSoft is already tapered to .010" and becomes straight to aim toward the opening and more rigid when tensioned by the DASH handle.


 
 

Ordering Information 

Catalog # WIN-14 VariSoft Guide Wire includes the DASH handle.

Catalog # WIN-14E VariSoft Extension Wire  available singly extends to double length wire.

To order contact WinMed, order@winmed-inc.com  or by Telephone 978 590-4246


WinMed, Inc.
Dundee Park, Bldg 17 Door 6
P.O. Box 2087
Andover, MA 01810
Tel: 978 590-4246
Fax 978 470-2270
email order@winmed-inc.com

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