Apparatus and method for controlling a magnetically controllable embolic in the embolization of an aneurysm
First Claim
1. A magnetic embolization apparatus for embolizing an aneurysm of a blood vessel, comprising:
- a catheter including a distal portion adapted for insertion within an aneurysm of a blood vessel;
a permanent magnet carried by the distal portion of the catheter to internally induce a magnetic field from within the aneurysm to control a magnetic field controllable embolic to embolize the aneurysm; and
an electromagnet carried by the distal portion of the catheter to induce a magnetic field that counteracts the magnetic field of the permanent magnet.
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Accused Products
Abstract
The present invention involves a magnetic embolization apparatus and method for embolizing an aneurysm of a blood vessel. The magnetic embolization apparatus includes a catheter having a distal portion adapted for insertion within an aneurysm of a blood vessel, a permanent magnet carried by the distal portion of the catheter to internally induce a magnetic field from within the aneurysm to control a magnetic field controllable embolic to embolize the aneurysm, and an electromagnet carried by the distal portion of the catheter to internally induce a magnetic field to control delivery of the magnetic field controllable embolic. The method includes delivering a magnetic-field controllable embolic into an aneurysm, inducing a magnetic field in the aneurysm to control the magnetic-field controllable embolic to embolize the aneurysm with the permanent magnet of the catheter, and controlling the delivery of the magnetic-field controllable embolic into the aneurysm with an electromagnet.
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Citations
19 Claims
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1. A magnetic embolization apparatus for embolizing an aneurysm of a blood vessel, comprising:
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a catheter including a distal portion adapted for insertion within an aneurysm of a blood vessel;
a permanent magnet carried by the distal portion of the catheter to internally induce a magnetic field from within the aneurysm to control a magnetic field controllable embolic to embolize the aneurysm; and
an electromagnet carried by the distal portion of the catheter to induce a magnetic field that counteracts the magnetic field of the permanent magnet. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of embolizing an aneurysm of a blood vessel, comprising:
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delivering a magnetic-field controllable embolic into an aneurysm;
internally inducing a magnetic field in the aneurysm to control the magnetic-field controllable embolic to embolize the aneurysm;
controlling the delivery of the magnetic-field controllable embolic into the aneurysm by actuating an electromagnet adjacent the aneurysm. - View Dependent Claims (9, 10, 11, 12)
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13. A method of embolizing an aneurysm of a blood vessel, comprising:
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delivering a magnetic-field controllable embolic into an aneurysm with a lumen of a catheter;
internally inducing a magnetic field from within the aneurysm to control the magnetic-field controllable embolic to embolize the aneurysm with a permanent magnet of the catheter;
counteracting the magnetic field induced by the permanent magnet with a magnetic field induced by an electromagnet to remove the catheter from the aneurysm without removing the embolic. - View Dependent Claims (14, 15, 16, 17)
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18. A magnetic embolization apparatus for embolizing an aneurysm of a blood vessel, comprising:
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a catheter including a distal portion;
a detachable permanent magnetic element and pusher wire carried by the catheter; and
an electromagnet carried by the distal portion of the catheter to induce a magnetic field for controlling delivery of the magnetic field controllable embolic.
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19. A method of embolizing an aneurysm of a blood vessel, comprising:
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deploying a detachable permanent magnetic element into the aneurysm;
delivering a magnetic-field controllable embolic into the aneurysm so that the detachable permanent magnetic element draws the magnetic-field controllable embolic into the aneurysm to embolize the aneurysm;
controlling delivery of the magnetic-field controllable embolic with an electromagnet.
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Specification