Stroke Clots can now be cleared and therapies can be delivered inside the brain with a new robotic guidewire

Stroke Clots can now be cleared and therapies can be delivered inside the brain with a new robotic guidewire

A variety of diseases and illnesses have found alternative therapies thanks to endovascular procedures improving them drastically in the recent time. There is a lot of respite with the abilities of catheters. They can be navigated deeper than before to the extent that they can also be navigated in the human brain.

However, when it comes is vascular anatomy there is immense room for improvement to traverse as the current situation is nothing short of torture.

There is a sense of dumbness observed in a majority of guidewires that are used to make the initial journey through vasculature these days, as their functions are pretty limited involving just rotation and being pushed.

Stroke Clots can now be cleared and therapies can be delivered inside the brain with a new robotic guidewire
Stroke Clots can now be cleared and therapies can be delivered inside the brain with a new robotic guidewire

This pretty much makes them useless and gives a hard time to the physicians who are depending on them to help them make their way through mazes that are three- dimensional.  Stereotaxis has made steerable systems for one, however they fail when it comes to get within some the narrower vessels in the brain and steerable at the tip only.

Considering all these limitations restricting the basic requirement of vasculature, a solution has been devised by the engineers at MIT through a steerable guidewire which unlike others is steered through a magnetic field, not just by the tip but a significant amount of its length.

The guidewire happens to be narrow and flexible enough to even work inside a brain.

The guidewires is equipped to glide through the blood vessels due to the thin hydrogel film that is outside the device giving it the required smoothness. It is composed of a shape- memory alloy called nitinol core.

It also has a rubbery coating seeded with magnetic particles.

A hand- help magnet can help the device to steer at the distal end near the tip as it can be pushed at the proximal end. Tests performed to check the effectiveness of the device has shown successful results.

2020-07-17

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