Shoulder coil and transmitting coil for magnetic resonance system

Patent metadata

Field	Value
Publication number	US-9958518-B2
Application number	US-201313974534-A
Country	US
Kind code	B2
Filing date	Aug 23, 2013
Priority date	Aug 23, 2012
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A shoulder coil for a magnetic resonance system includes a receiving part. The shoulder coil also includes a transmitting part used for coupling a radio-frequency magnetic field of a body coil of the magnetic resonance system.

First claim

The invention claimed is:

1. A shoulder coil for a magnetic resonance system, the shoulder coil comprising:
a receiving part; and
a transmitting part having two circular rings and two wires, wherein the two circular rings are identical and co-axial, wherein the two circular rings each have an opening with two ends of the opening being respectively connected to the two wires, wherein the two wires intersect an odd-number of times, wherein the two circular rings bend toward each other at an end opposite to the respective opening, and wherein the transmitting part is configured to couple a radio-frequency magnetic field of a body coil of the magnetic resonance system such that no dedicated transmission cable for connecting the transmitting part and the magnetic resonance system is required,
wherein the receiving part and the transmitting part are mutually independent, and
wherein the shoulder coil is configured to examine a shoulder of a patient.

2. The shoulder coil as claimed in claim 1 , wherein the transmitting part comprises a Helmholtz coil.

3. The shoulder coil as claimed in claim 1 , wherein each circular ring of the two circular rings comprises one or more capacitors, and
wherein the one or more capacitors are connected in series at equal intervals on the circular ring.

4. The shoulder coil as claimed in claim 1 , wherein a three-dimensional geometric center of the transmitting part coincides with a three-dimensional geometric center of the receiving part.

5. A transmitting coil of a shoulder coil for a magnetic resonance system, the transmitting coil comprising:
two circular rings and two wires,
wherein the two circular rings are identical, parallel to each other and co-axial, the two circular rings respectively having an opening, two ends of each opening being respectively connected to the two wires,
wherein the two wires intersect for odd-numbered times,
wherein the transmitting coil is configured to couple a radio-frequency magnetic field of a body coil of the magnetic resonance system such that no dedicated transmission cable for connecting the transmitting part and the magnetic resonance system is required, and
wherein the transmitting coil is configured to examine a shoulder of a patient.

6. A transmitting coil of a shoulder coil for a magnetic resonance system, the transmitting coil comprising:
two circular rings and two wires,
wherein the two circular rings are identical and co-axial, the two circular rings respectively have an opening, two ends of each opening being respectively connected to the two wires, the two wires intersecting for odd-numbered times,
wherein the two circular rings bend toward each other at an end opposite to the respective opening,
wherein the transmitting coil is configured to couple a radio-frequency magnetic field of a body coil of the magnetic resonance system such that no dedicated transmission cable for connecting the transmitting part and the magnetic resonance system is required, and
wherein the transmitting coil is configured to examine a shoulder of a patient.

7. A magnetic resonance system comprising:
a shoulder coil configured to examine a shoulder of a patient, the shoulder coil comprising:
a receiving part; and
a transmitting part having two circular rings and two wires, wherein the two circular rings are identical and co-axial, wherein the two circular rings each have an opening with two ends of the opening being respectively connected to the two wires, wherein the two wires intersect an odd-number of times, wherein the two circular rings bend toward each other at an end opposite to the respective opening, and wherein the transmitting part is configured to couple a radio-frequency magnetic field of a body coil of the magnetic resonance system such that no dedicated transmission cable for connecting the transmitting part and the magnetic resonance system is required,
wherein the receiving part and the transmitting part are mutually independent.

8. The magnetic resonance system as claimed in claim 7 , wherein the transmitting part comprises a Helmholtz coil.

9. The shoulder coil as claimed in claim 7 , wherein each circular ring of the two circular rings comprises one or more capacitors, and
wherein the one or more capacitors are connected in series at equal intervals on the circular ring.

10. The magnetic resonance system as claimed in claim 7 , wherein a three-dimensional geometric center of the transmitting part coincides with a three-dimensional geometric center of the receiving part.

11. The magnetic resonance coil as claimed in claim 1 , wherein the transmitting part and the receiving part are configured to be respectively used alone or together.

12. The magnetic resonance coil as claimed in claim 1 , wherein the receiving coil is a phased array coil.

Assignees

• Du Shu
• He Zeng He
• Li wen ming
• Tong Tong
• Wang Jian Min
• Siemens Ag

Inventors

• Du Shu
• He Zeng He
• Li wen ming
• Tong Tong
• Wang Jian Min

Classifications

• G01R33/3642

  Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification · CPC title

• G01R33/34

  Constructional details, e.g. resonators {, specially adapted to MR} · CPC title

• G01R33/3415

  comprising arrays of sub-coils {, i.e. phased-array coils with flexible receiver channels} · CPC title

• G01R33/34084 Primary

  implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts · CPC title