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US 11,547,777 B2Granted
Thermally robust, electromagnetic interference compatible, devices for non-invasive and invasive surgery
AssigneeThe Regents of the University of California
InventorsSanjeet Hegde, Kanishka Ratnayaka, John Moore, Sunghoon Park, Prabhakar Bandaru
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Abstract
Techniques to fabricate and use a nanocomposite coating that includes one or more nanotubes such as carbon nanotubes are disclosed. In some examples, a guidewire may include the nanocomposite material. The guidewire is immune to electromagnetic interference, is thermally robust, and is capable of accommodating inactive markers and active electronics.
Claims16
A device comprising:
- a base layer that is part of a medical instrument;
- and
- one or more coatings of a nanomaterial structure over the base layer, the nanomaterial structure including a polymer matrix and a plurality of nanomaterial fillers dispersed in the polymer matrix such that the plurality of nanomaterial fillers are aligned in a plane of the polymer matrix,
- wherein the polymer matrix includes reactive ethylene terpolymer (RET) matrix including an epoxide functional group and nanomaterial fillers includes carboxyl group functionalized single-walled carbon nanotubes or multiwalled carbon nanotubes to form ester bond linkages between the carboxyl group functionalized nanotubes and the epoxide functional group.
1 more element
A method of manufacturing a medical device, comprising:
- synthesizing a composite that includes a polymer matrix and a plurality of nanomaterial fillers dispersed in the polymer matrix;
- and
- forming a layer of the composite along a surface of a base layer of the medical device such that the plurality of nanomaterial fillers are aligned in a plane of the polymer matrix,
- wherein the polymer matrix includes reactive ethylene terpolymer (RET) matrix including an epoxide functional group and nanomaterial fillers includes carboxyl group functionalized single-walled carbon nanotubes or multiwalled carbon nanotubes to form ester bond linkages between the carboxyl group functionalized nanotubes and the epoxide functional group.
1 more element
Dependencies are inferred from the claim text.