Device and method for preventing magnetic-resonance imaging induced damage
View Patent ↗An electromagnetic shield has a first patterned or apertured layer having non-conductive materials and conductive material and a second patterned or apertured layer having non-conductive materials and conductive material. The conductive material may be a metal, a carbon composite, or a polymer composite. The non-conductive materials in the first patterned or apertured layer may be randomly located or located in a predetermined segmented pattern such that the non-conductive materials in the first patterned or apertured layer are located in a predetermined segmented pattern with respect to locations of the non-conductive materials in the second patterned or apertured layer.
1. An electromagnetic shielded lead, comprising:
an electrical lead; and
a shielding formed around said electrical lead to shield said electrical lead from electromagnetic interference;
said shielding being an apertured conductive material with non-conductive material positioned within said apertures;
said apertures in said conductive material of said shielding being located in a predetermined pattern.
2. The electromagnetic shielded lead as claimed in claim 1 , wherein said conductive material is a metal to shield said electrical lead from electromagnetic interference.
3. The electromagnetic shielded lead as claimed in claim 1 , wherein said conductive material includes metal-coated carbon filaments to shield said electrical lead from electromagnetic interference.
4. The electromagnetic shielded lead as claimed in claim 1 , wherein said conductive material is a polymer composite to shield said electrical lead from electromagnetic interference.
5. The electromagnetic shielded lead as claimed in claim 1 , further comprising a non-permeable diffusion resistant biocompatible material covering said shielding.
6. The electromagnetic shielded lead as claimed in claim 1 , wherein said shielding is constructed of two apertured sheaths, each apertured sheath having non-conductive materials and conductive material.
7. The electromagnetic shielded lead as claimed in claim 6 , wherein locations of said non-conductive materials in a first sheath of said two apertured sheaths is random with respect to locations of said non-conductive materials in a second sheath of said two apertured sheaths.
8. The electromagnetic shielded lead as claimed in claim 6 , wherein said non-conductive materials in said two apertured sheaths are located in a predetermined segmented pattern with respect to a direction substantially parallel with an axis of said lead system.
9. The electromagnetic shielded lead as claimed in claim 6 , wherein said non-conductive materials in said two apertured sheaths are located in a predetermined segmented pattern with respect to a direction substantially perpendicular with an axis of said lead system.
10. The electromagnetic shielded lead as claimed in claim 1 , wherein said conductive material comprises nanotubes to shield said electrical lead from electromagnetic interference.
11. An electromagnetic shielded lead, comprising:
an electrical lead; and
a shielding formed around said electrical lead to shield said electrical lead from electromagnetic interference;
said shielding being patterned with non-conductive materials and conductive material;
said shielding being constructed of two patterned sheaths, each patterned sheath having non-conductive materials and conductive material;
said non-conductive materials in said two patterned sheaths are located in a predetermined segmented pattern.
12. An electromagnetic shielded lead, comprising:
an electrical lead; and
a shielding formed around said electrical lead to shield said electrical lead from electromagnetic interference;
said shielding being an apertured conductive material;
said apertured conductive material having a maximum aperture dimension of 0.01 millimeters to 10 millimeters.
13. The electromagnetic shielded lead as claimed in claim 12 , wherein said conductive material is a metal to shield said electrical lead from electromagnetic interference.
14. The electromagnetic shielded lead as claimed in claim 12 , wherein said conductive material includes metal-coated carbon filaments to shield said electrical lead from electromagnetic interference.
15. The electromagnetic shielded lead as claimed in claim 12 , wherein said conductive material is a polymer composite to shield said electrical lead from electromagnetic interference.
16. The electromagnetic shielded lead as claimed in claim 12 , further comprising a non-permeable diffusion resistant biocompatible material covering said shielding.
17. The electromagnetic shielded lead as claimed in claim 12 , wherein apertures of said apertured conductive material of shielding are constructed from non-conductive materials being dispersed in said conductive material.
18. The electromagnetic shielded lead as claimed in claim 17 , wherein said non-conductive materials are randomly located.
19. The electromagnetic shielded lead as claimed in claim 17 , wherein said non-conductive materials are located in a predetermined segmented pattern.
20. The electromagnetic shielded lead as claimed in claim 12 , wherein said conductive material comprises nanotubes to shield said electrical lead from electromagnetic interference.