Balun arrangement and installation method thereof for a magnetic resonance apparatus
First Claim
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1. A balun arrangement that is usable with a magnetic resonance apparatus at resonance comprising:
- a cable member having at least one first ground end and at least one second ground end; and
at least one first capacitive element including a first terminal and a second terminal, said first capacitive element electrically coupled to said first ground end and second ground end,said cable member configured to have a predetermined large surface between the first ground end and the second ground end, wherein the surface dissipates a substantial quantity of heat from the cable member, anda mounting block having a groove,wherein the cable member comprises at least one bent portion, wherein the bent portion provides a predetermined large surface area for the cable member, andwherein the cable member is secured to the mounting block at the groove, with the mounting block being operable in order to maintain the cable member in a position predetermined to be substantially free from vibrations arising out of a high magnetic field when the balun arrangement is within a magnetic resonance apparatus at resonance.
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Abstract
A balun arrangement for a magnetic resonance apparatus which in some embodiments further comprises a cable member comprising at least one first ground end and at least one second ground end. A first capacitive element is electrically coupled to said first ground end and second ground end, wherein the cable member comprises a predetermined large surface area for dissipating substantial quantity of heat generated within the cable member.
18 Citations
20 Claims
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1. A balun arrangement that is usable with a magnetic resonance apparatus at resonance comprising:
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a cable member having at least one first ground end and at least one second ground end; and at least one first capacitive element including a first terminal and a second terminal, said first capacitive element electrically coupled to said first ground end and second ground end, said cable member configured to have a predetermined large surface between the first ground end and the second ground end, wherein the surface dissipates a substantial quantity of heat from the cable member, and a mounting block having a groove, wherein the cable member comprises at least one bent portion, wherein the bent portion provides a predetermined large surface area for the cable member, and wherein the cable member is secured to the mounting block at the groove, with the mounting block being operable in order to maintain the cable member in a position predetermined to be substantially free from vibrations arising out of a high magnetic field when the balun arrangement is within a magnetic resonance apparatus at resonance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A magnetic resonance apparatus, comprising:
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a magnetic resonance coil; and a balun arrangement mounted to said magnetic resonance coil;
said balun arrangement comprisingat least one cable member in combination with at least one capacitive element; and a mounting block having a groove, which holds the balun arrangement intact with the cable member being secured to the mounting block at the groove, wherein; said combination of the magnetic resonance coil, cable member, the at least one capacitive element, and mounting block is configured for; (i) providing ground-to-ground isolation of the cable member; (ii) dissipating a substantial quantity of heat from the cable member; and (iii) maintaining the cable member in a position predetermined to maintain the balun arrangement substantially free from vibrations arising out of a high magnetic field in a magnetic resonance apparatus at resonance, and wherein the cable member comprises at least one bent portion, with the bent portion providing the cable member with a predetermined large surface area that is utilized in the dissipating of a substantial quantity of heat from the cable member. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of installing a balun arrangement within a magnetic resonance apparatus, comprising:
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mounting a balun arrangement comprising a cable member in combination with one or more capacitive elements on to, a magnetic resonance coil; mounting a mounting block having a groove, to said magnetic resonance coil, and to said balun arrangement; wherein the mounting block is in a position predetermined to maintain the balun arrangement substantially free from vibrations of the cable member arising out of a high magnetic field at resonance; and tuning the combination of said magnetic resonance coil, cable member, and said one or more capacitive elements, in order to resonate at a frequency predetermined to provide ground-to-ground isolation for the cable member; wherein the cable member comprises at least one bent portion, with the bent portion of the cable member providing a predetermined large surface area; and wherein the surface area of the cable member is predetermined to dissipate a substantial quantity of heat from the cable member. - View Dependent Claims (20)
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Specification