Medical device with an electrically conductive anti-antenna geometrical shaped member
View Patent ↗A medical device having electrically conductive properties includes an electrically conductive member. The electrically conductive member has an anti-antenna geometrical shape. The anti-antenna geometrical shaped electrically conductive member is shaped such that currents induced in the anti-antenna geometrical shaped electrically conductive member, by radio frequency fields, offset currents induced in the medical device by the radio frequency fields.
1. A medical device comprising:
a lead; and
an electrically conductive member having an anti-antenna geometrical shape coupled to said lead;
said anti-antenna geometrical shaped electrically conductive member being shaped such that currents induced in said anti-antenna geometrical shaped electrically conductive member from electromagnetic interference, produce a net current having a substantially zero magnitude.
2. A medical device according to claim 1 wherein said anti-antenna geometrical shaped electrically conductive member is shaped such that currents induced in said anti-antenna geometrical shaped electrically conductive member, from magnetic resonance imaging, produce a net current having a substantially zero magnitude.
3. A medical device according to claim 2 wherein said anti-antenna geometrical shaped electrically conductive member is
a metal component placed in a tissue region.
4. A medical device according to claim 2 wherein said anti-antenna geometrical shaped electrically conductive member is
placed in a tissue region.
5. A medical device according to claim 1 wherein said anti-antenna geometrical shaped electrically conductive member being shaped such that currents induced in said anti-antenna geometrical shaped electrically conductive member, from changing external magnetic fields, produce a net current having a substantially zero magnitude.
6. A medical device according to claim 1 wherein said anti-antenna geometrical shaped electrically conductive member being shaped such that currents induced in said anti-antenna geometrical shaped electrically conductive member, from electromagnetic radiation, produce a net current having a substantially zero magnitude.
7. A medical device having electrically conductive properties, comprising:
an electrically conductive member having an anti-antenna geometrical shape;
said anti-antenna geometrical shaped electrically conductive member being shaped such that currents induced in said anti-antenna geometrical shaped electrically conductive member, by electromagnetic interference, passively neutralize currents induced in the medical device by electromagnetic interference.
8. A medical device according to claim 7 wherein the said anti-antenna geometrical shaped electrically conductive member being shaped such that currents induced in said anti-antenna geometrical shaped electrically conductive member, by changing external magnetic fields, passively neutralize currents induced in the medical device by changing external magnetic fields.
9. A medical device according to claim 7 wherein said anti-antenna geometrical shaped electrically conductive member being shaped such that currents induced in said anti-antenna geometrical shaped electrically conductive member, by electromagnetic radiation, passively neutralize currents induced in the medical device by electromagnetic radiation.
10. A medical device according to claim 7 wherein said anti-antenna geometrical shaped electrically conductive member being shaped such that currents induced in said anti-antenna geometrical shaped electrically conductive member, by radio frequency energy, passively neutralize currents induced in the medical device by radio frequency energy.
11. A medical device having electrically conductive properties, comprising:
an electrically conductive member having an anti-antenna geometrical shape;
said anti-antenna geometrical shaped electrically conductive member being shaped such that currents induced in said anti-antenna geometrical shaped electrically conductive member, by electromagnetic interference, offset currents induced in the medical device by the electromagnetic interference.
12. A medical device according to claim 11 wherein said anti-antenna geometrical shaped electrically conductive member being shaped such that currents induced in said anti-antenna geometrical shaped electrically conductive member, by changing external magnetic fields, offset currents induced in the medical device changing external magnetic fields.
13. A medical device according to claim 11 wherein said anti-antenna geometrical shaped electrically conductive member being shaped such that currents induced in said anti-antenna geometrical shaped electrically conductive member, by radio frequency energy, offset currents induced in the medical device by radio frequency energy.