Open field system for magnetic surgery
First Claim
1. A system for navigating a magnetic medical device within that part of a patient located within an operating region of the system, the system comprising:
- at least three magnets configured and arranged in a hemispherically shaped shell to provide a magnetic field effective within the operating region to navigate the magnetic medical device within the operating region.
7 Assignments
0 Petitions
Accused Products
Abstract
A system of navigating a magnetic medical device within that part of a patient located within an operating region of the system, the system comprising magnets, and preferably electromagnets, arranged to provide a magnetic field sufficient to navigate the magnetic medical device within the operating region. There are preferably three magnetic coils arranged in mutually perpendicular planes such that their axes intersect in the operating region. The magnetic coils are sized and arranged so that a patient can easily access the operating region to allow virtually any portion of the patient to be positioned within the operating region. The openness of the magnetic system allows access to the operating region by a bi-planer imaging system.
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Citations
90 Claims
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1. A system for navigating a magnetic medical device within that part of a patient located within an operating region of the system, the system comprising:
at least three magnets configured and arranged in a hemispherically shaped shell to provide a magnetic field effective within the operating region to navigate the magnetic medical device within the operating region.
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2. A system for navigating a magnetic medical device within that part of a patient located within an operating region of the system, the system comprising:
at least three magnet coils configured and arranged in an open concave shell to provide a magnetic field effective within the operating region to navigate the magnetic medical device within the operating region. - View Dependent Claims (3)
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4. A system for navigating a magnetic medical device within that part of a patient located within an operating region of the system, the system comprising:
a single magnet arranged and configured to provide a magnetic field along at least one of a plurality of oblique axes extending through the operating region, one or more magnets arranged and configured to provide a magnetic field along each of the other of said oblique axes, said magnetic fields being effective to controllably navigate the medical device within substantially the entirety of the operating region.
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5. A system for navigating a magnetic medical device within that part of a patient located within an operating region of the system, the system comprising:
a plurality of magnet coils mounted within one or more supports, said magnet coils being effective to controllably navigate the medical device within substantially the entirety of the operating region, said operating region being positioned so that said part of the patient may be located within the operating region without passing through any of said magnet coils.
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6. A system for navigating a magnetic medical device within that part of a patient located within an operating region of the system, the system comprising:
a plurality of magnets effective for creating a magnetic field sufficient to navigate said medical device within said operating region, said plurality of magnets being generally aligned along a plurality of oblique axes with only a single one of said magnets being aligned along one of said axes, and one or more magnets being aligned along the others of said axes. - View Dependent Claims (7)
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8. A system for navigating a magnetic medical device within that part of a patient located within an operating region of the system, the system comprising:
a plurality of magnets mounted within one or more supports, said magnets being effective to controllably navigate the medical device within substantially the entirety of the operating region, a patient support for supporting a patient intended to be located within said operating region, said patient support being moveable with respect to said supports for said magnets, said patient support being positioned with respect to said magnets so that as said patient support is advanced toward said magnets, said patient is moved into said operating region before said patient passes through the bore of any magnet.
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9. A system for navigating a magnetic medical device within that part of a patient located within an operating region, the system comprising:
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a plurality of navigating magnets effective to controllably navigate the medical device with substantially the entirety of the operating region, and a patient support for moving the patient into the operating region of the system, only a single one of said magnets having its central axis generally aligned with the direction of movement of the patient support, and the others of said magnets being aligned with a plurality of oblique axes extending through the operating region.
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10. A system for navigating a magnetic medical device within that part of a patient located within an operating region of the system, the system comprising:
a total of three navigating magnets configured and arranged to provide a magnetic field effective within the operating region to navigate the magnetic medical device within the operating region. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A system for navigating a magnetic medical device within a patient, the system comprising a medical imaging device configured to provide an image of an operating region of a patient including the medical device therein;
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a total of three navigating magnets configured and arranged to provide a magnetic field effective within the operating region to orient the magnetic medical device with in the operating region. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55)
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56. A system for navigating a magnetic medical device within an operating region within a patient, the system comprising:
three electromagnetic coils configured and arranged to be able to provide a magnetic field of at least about 0.1 Tesla within an operating region at least about five inches by about five inches by about five inches which operating region is spaced at least about twelve inches from each of the coils, to selectively orient the magnetic medical device anywhere within the operating region. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
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71. A system for navigating a magnetic medical device within an operating region within which a patient may be placed, the system comprising:
a total of three super conducting magnets configured such that each of their central axes lies generally along an axis of an orthogonal coordinate system having its origin approximately centered within said operating region, said magnets being supported by a generally hemispherical shell and each magnet being of sufficient strength to provide a magnetic field in the direction of its respective central axis having a generally consistent strength of about 0.3 Tesla throughout substantially the entirety of said operating region, and a control for adjusting the strength of the magnetic field of each of said magnets to thereby controllably navigate the magnetic medical device within the patient as the patient lies with a part of the patient'"'"'s body within the operating region.
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72. A system for navigating a magnetic medical device within an operating region within a patient, the system comprising:
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a support for at least a portion of the patient;
a magnet hood including three electromagnetic coils arranged and configured so that the axes of the coils converge, a magnet mount holding the magnet hood so that the convergence of the axes would be within the operating region of the patient supported on the support;
an x-ray imaging assembly for providing an image of the operating region of a patient supported on the patient support, the imaging assembly comprising at least one imaging plate and an x-ray imaging beam source mounted on an imaging support to be on opposite sides of the operating region, and a C-arm mechanism for selectively pivoting the support about three mutually perpendicular axes. - View Dependent Claims (73, 74, 75)
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76. A system for navigating a magnetic medical device through the part of a patient within an operating region of the system while providing an open environment around the patient, the system comprising:
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a support for the patient;
a magnet hood assembly including a magnet hood supported by a magnet hood mount, the magnet hood having three navigating electromagnets configured to provide a selected magnetic field in the operating region; and
an x-ray imaging assembly including a portion disposed between the magnet hood and the operating region to provide a medical image of the operating region. - View Dependent Claims (77, 78, 79, 80, 81, 82, 83, 84, 85, 86)
a imaging support;
a mechanism for moving the imaging support relative to the patient;
an imaging plate operatively supported by the imaging support;
an imaging tube producing an imaging beam directed towards the imaging plate through the operating region, the imaging tube also being operatively supported by the imaging support so that movement of the imaging tube and the imaging plate are coordinated upon movement of the support, the imaging beam remaining directed toward the imaging plate through the operating region in at least a plurality of different positions of the support; and
at least one of the imaging tube and the imaging plate is disposed between the magnet assembly and the operating region in said plurality of different positions of the support.
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79. The system of claim 78 wherein the magnet hood is moveably attached to the magnet hood support base in a manner to allow repositioning about the operating region separately from movement of the imaging assembly to provide greater freedom in imaging the operating region of the patient.
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80. The system of claim 78 wherein at least one of the imaging tube and the imaging plate is adjustably supported by the support so that a distance between the imaging tube and the imaging plate is adjustable.
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81. The system of claim 78 wherein the imaging plates are amorphous silicon imaging plates to provide immunity of the imaging system to strong magnetic fields.
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82. The system of claim 78 wherein the magnet hood is moveably attached to the magnet hood support base in a manner to allow repositioning about the operating region.
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83. The system of claim 78 wherein the electromagnetic coils are configured to provide a magnetic field adjustable up to at least 0.3 Tesla in the operating region without flexure of the magnet hood in excess of 1 millimeter from the adjustable magnetic field, and in which the electromagnetic coils are superconducting and include an associated cryogenic system on or supported by the magnetic hood, or both, and wherein the magnet hood, including the associated cryogenic system and electromagnetic coils, weigh less than about 5000 pounds.
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84. The system of claim 78 wherein the three electromagnetic coils are confined within a magnet support hood having a generally hemispherical shape.
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85. The system of claim 84 wherein the medical imaging device comprises movable imaging plates and movable imaging tubes having imaging beams directed towards the imaging plates through an operating region of a patient, and the magnet support hood has an axis of symmetry tilted to increase access of the imaging beams to the operating region of the patient.
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86. The system of claim 85 wherein the magnet hood is rotatable about an axis.
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87. A method of navigating a magnetic medical device within an operating region in a patient, the method comprising:
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applying a magnetic field to the magnetic medical device in the operating zone with at least three electromagnetic coils contained within a magnet shell to navigate the medical device within the operating region; and
providing an image of the magnetic medical device in the operating region with an imaging apparatus comprising at least one imaging plate and an x-ray imaging beam source, the imaging plate and the x-ray imaging beam source being on opposite sides of the operating region, with the imaging plate being positioned between the operating region and the magnet shell.
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88. A method of navigating a magnetic medical device within an operating region in a patient, the method comprising:
applying a magnetic field to the magnetic medical device in the operating region with at least three electromagnetic coils contained within a magnet shell having a concave opening to navigate the medical device within the operating region, the axes of the coils intersecting at a point in the operating region, while providing a real-time image of the magnetic medical device in the operating region with an imaging apparatus comprising at least one imaging plate and an imaging beam source, the imaging plate and imaging beam source being on opposite sides of the operating region, with the imaging plate being positioned between the operating region and the magnet shell. - View Dependent Claims (89, 90)
Specification