Medindia

X

Microscopic Robots Drill Through Narrowest Blood Vessels To Clear Occlusions

by Julia Samuel on  July 1, 2015 at 2:24 PM Medical Gadgets   - G J E 4
Microscopic swimmers to break up blood vessel occlusions in the narrowest vessels have been developed at the Drexel University, Philadelphia.
Microscopic Robots Drill Through Narrowest Blood Vessels To Clear Occlusions
Microscopic Robots Drill Through Narrowest Blood Vessels To Clear Occlusions
Advertisement

Currently, such treatments are done within cath labs, but there are only a limited number of places in the body that a catheter can be pushed into.

Advertisement
The new swimmers may be able to drill through occlusions that would otherwise be simply inaccessible. The microswimmers are just chains of iron oxide beads strung together.

Using an external magnetic field, they are made to rotate around the main axis, causing them to swim in one direction. Rotating the magnetic field can oscillate the entire microdevice, pointing it in any direction before setting it to move forward.

The length of the chains defines the force with which the microswimmers can push against an occlusion, while different surface properties can be developed to appropriately attack the plaques causing a blockage.

At the moment, these microswimmers will be put to work in conjunction with an arterial drill developed at ETH Zurich. The idea is to position them at the site of an occlusion, make the initial impact on the plaque, following up with the drill once the material is ready for work by a larger instrument.

Source: Medindia
Advertisement

Post your Comments

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
User Avatar
* Your comment can be maximum of 2500 characters
Notify me when reply is posted I agree to the terms and conditions

You May Also Like

Advertisement
View All