MRI adjustable head coil
First Claim
Patent Images
1. A head coil arrangement for a magnetic resonance device, comprising:
- a plurality of radio-frequency coils;
a housing on which or in which said plurality of radio-frequency coils is carried;
said housing comprising at least two housing parts that define a circumference of the housing, said housing parts comprising a mechanical interaction with each other configured to permit said housing parts to move toward each other to adjust said housing to different head sizes by changing a size of said circumference, said housing parts comprising linear guides that linearly guide said housing parts toward each other, in the linear guides; and
a movement mechanism connected to at least one of said housing parts that is operable to move said housing parts toward each other, and a sensor that senses a pressure applied by said housing parts to a head received in said housing, said movement mechanism being controlled dependent on an output of said sensor.
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Accused Products
Abstract
A head coil arrangement for a magnetic resonance device has a housing on or in which a number of coils are arranged, the housing having at least two housing parts that can be moved toward each other for adjustment to different head sizes.
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Citations
20 Claims
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1. A head coil arrangement for a magnetic resonance device, comprising:
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a plurality of radio-frequency coils; a housing on which or in which said plurality of radio-frequency coils is carried; said housing comprising at least two housing parts that define a circumference of the housing, said housing parts comprising a mechanical interaction with each other configured to permit said housing parts to move toward each other to adjust said housing to different head sizes by changing a size of said circumference, said housing parts comprising linear guides that linearly guide said housing parts toward each other, in the linear guides; and a movement mechanism connected to at least one of said housing parts that is operable to move said housing parts toward each other, and a sensor that senses a pressure applied by said housing parts to a head received in said housing, said movement mechanism being controlled dependent on an output of said sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A head coil arrangement for a magnetic resonance device, comprising:
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a plurality of radio-frequency coils; a housing on which or in which said plurality of radio frequency coils is carried; said housing comprising at least two housing parts that define a circumference of the housing, said housing parts comprising a mechanical interaction with an overlap of said two housing parts, configured to permit said two housing parts to move toward each other to change a size of said overlap to adjust said housing to different head sizes by changing a size of said circumference of said housing, said housing parts comprising linear guides that linearly guide said housing parts toward each other, in the linear guides; and a movement mechanism connected to at least one of said housing parts that is operable to move said housing parts toward each other, and a sensor that senses a pressure applied by said housing parts to a head received in said housing, said movement mechanism being controlled dependent on an output of said sensor.
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19. A head coil arrangement for a magnetic resonance device, comprising:
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a plurality of radio-frequency coils; a housing on which or in which said plurality of radio frequency coils is carried, said housing being configured to surround a circumference of a patient'"'"'s head in a plane of the head; and said housing comprising a plurality of housing parts that define a circumference of the housing, said housing parts comprising a mechanical interaction that mechanically interact with each other configured to permit said housing part to move toward each other to adjust said housing in a first direction in said plane and in a second direction in said plane that is parallel to said first direction, in order to adjust said housing to different head sizes by changing a size of said circumference of said housing, said housing parts comprising linear guides that linearly guide said housing parts toward each other, in the linear guides; and a movement mechanism connected to at least one of said housing parts that is operable to move said housing parts toward each other, and a sensor that senses a pressure applied by said housing parts to a head received in said housing, said movement mechanism being controlled dependent on an output of said sensor. - View Dependent Claims (20)
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Specification