# US 2025/0085367 A1 · Head coil system and methods

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- Number: US 2025/0085367 A1
- Document ID: US20250085367A1
- Status: Published application
- Kind: A1
- Application number: 18/465,412
- Filed: 2023-09-12
- Published: 2025-03-13
- Earliest claimed: 2023-09-12
- Applicants: Synaptive Medical Inc.
- Inventors: Gilbert THEVATHASAN; William Wai-Leung LAU; Alex Gyles PANTHER
- Web page: https://patentgrep.com/patent/US20250085367A1

## CPC

- G01R 33/34007: {Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system}
- G01R 33/34046: {Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils}
- G01R 33/283: {Intercom or optical viewing arrangements, structurally associated with NMR apparatus}
- G01R 33/34084: {implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts}
- G01R 33/3415: comprising arrays of sub-coils {, i.e. phased-array coils with flexible receiver channels}
- G01R 33/3802: {Manufacture or installation of magnet assemblies; Additional hardware for transportation or installation of the magnet assembly or for providing mechanical support to components of the magnet assembly}
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)

## Abstract

Head coil systems and methods involving a plurality of portions, each portion of the plurality of portions having a magnetically conductive receiver coil and a frame configured to accommodate the magnetically conductive receiver coil, and each portion of the plurality of portions configured to couple and decouple with another portion of the plurality of portions; at least one coupling feature configured to at least one of couple, lock, unlock, and decouple at least one portion of the plurality of portions in relation to another at least one portion of the plurality of portions, the at least one coupling feature having a forward coupling feature and an aft coupling feature; and a tilting feature configured to dispose at least one portion of the plurality of portions at an angle in relation to a horizontal plane.

## Claims

### Claim 1

A head coil system, comprising:
a plurality of portions, each portion of the plurality of portions comprising a magnetically conductive receiver coil and a frame configured to accommodate the magnetically conductive receiver coil, and each portion of the plurality of portions configured to couple and decouple with another portion of the plurality of portions;
at least one coupling feature configured to at least one of couple, lock, unlock, and decouple at least one portion of the plurality of portions in relation to another at least one portion of the plurality of portions, the at least one coupling feature comprising a forward coupling feature and an aft coupling feature; and
a tilting feature configured to dispose at least one portion of the plurality of portions at an angle in relation to a horizontal plane.

### Claim 2 (depends on 1)

The system of claim 1,
wherein the plurality of portions comprises an upper portion and a lower portion,
wherein at least one of the upper portion is configured to operably couple with the lower portion and the lower portion is configured to operably couple with the upper portion,
wherein the upper portion is configured to interchange with at least one module, and
wherein the at least one module comprises at least one of a two-loop module and a horseshoe module.

### Claim 3 (depends on 2)

The system of claim 2, wherein the tilting feature is configured to couple, lock, unlock, and decouple the lower portion in relation to a bed of a medical transporter.

### Claim 4 (depends on 1)

The system of claim 1, wherein the angle comprises a range of approximately 0 degrees to approximately 10 degrees.

### Claim 5 (depends on 1)

The system of claim 1, wherein the tilting feature comprises a wedge configuration.

### Claim 6 (depends on 3)

The system of claim 3, wherein the tilting feature comprises a trough configuration complementing that of the bed.

### Claim 7 (depends on 1)

The system of claim 1, further comprising a viewing accessory configured to facilitate viewing of an environment outside an MRI machine.

### Claim 8 (depends on 7)

The system of claim 7, wherein the viewing accessory comprises a mirror.

### Claim 9 (depends on 1)

The system of claim 1, wherein the magnetically conductive receiver coil comprises at least one of copper and a copper tube.

### Claim 10 (depends on 1)

The system of claim 1, wherein the magnetically conductive receiver coil provides high performance in relation to an MRI machine having a low magnetic field, and wherein the low magnetic field is approximately 0.5 Tesla.

### Claim 11

A method of fabricating a head coil system, comprising:
providing a plurality of portions, providing the plurality of portions comprising providing each portion with a magnetically conductive receiver coil and a frame configured to accommodate the magnetically conductive receiver coil, and providing the plurality of portions comprising providing each portion configured to couple and decouple with another portion of the plurality of portions;
providing at least one coupling feature configured to at least one of couple, lock, unlock, and decouple at least one portion of the plurality of portions in relation to another at least one portion of the plurality of portions, providing the at least one coupling feature comprising providing a forward coupling feature and providing an aft coupling feature; and
providing a tilting feature configured to dispose at least one portion of the plurality of portions at an angle in relation to a horizontal plane.

### Claim 12 (depends on 1)

The method of claim 1,
wherein providing the plurality of portions comprises providing an upper portion and providing a lower portion,
wherein at least one of providing the upper portion comprises configuring the upper portion to operably couple with the lower portion and providing the lower portion comprises configuring the lower portion to operably couple with the upper portion,
wherein providing the upper portion comprises configuring the upper portion to interchange with at least one module, and
wherein providing the upper portion comprises configuring the upper portion to interchange with the at least one module comprising at least one of a two-loop module and a horseshoe module.

### Claim 13 (depends on 12)

The method of claim 12, wherein providing the tilting feature comprises configuring the tilting feature to couple, lock, unlock, and decouple the lower portion in relation to a bed of a medical transporter.

### Claim 14 (depends on 11)

The method of claim 11, wherein providing the tilting feature comprises configuring the tilting feature to dispose at least one portion of the plurality of portions at the angle comprising a range of approximately 0 degrees to approximately 10 degrees.

### Claim 15 (depends on 11)

The method of claim 11, wherein providing the tilting feature comprises providing a wedge configuration.

### Claim 16 (depends on 13)

The method of claim 13, wherein providing the tilting feature comprises providing a trough configuration complementing that of the bed.

### Claim 17 (depends on 11)

The method of claim 11, further comprising providing a viewing accessory configured to facilitate viewing of an environment outside an MRI machine.

### Claim 18 (depends on 17)

The method of claim 17, wherein providing the viewing accessory comprises providing a mirror.

### Claim 19 (depends on 11)

The method of claim 11,
wherein providing each portion with a magnetically conductive receiver coil comprises providing at least one of copper and a copper tube, and
wherein providing the magnetically conductive receiver coil comprises providing the magnetically conductive receiver coil having a high performance in relation to an MRI machine having a low magnetic field, and
wherein providing the magnetically conductive receiver coil comprises providing the magnetically conductive receiver coil having a high performance in relation to an MRI machine having a low magnetic field of approximately 0.5 Tesla.

### Claim 20

A method of using a head coil system, comprising:
providing a head coil system, providing the head coil system comprising:
providing a plurality of portions, providing the plurality of portions comprising providing each portion with a magnetically conductive receiver coil and a frame configured to accommodate the magnetically conductive receiver coil, and providing the plurality of portions comprising providing each portion configured to couple and decouple with another portion of the plurality of portions;
providing at least one coupling feature configured to at least one of couple, lock, unlock, and decouple at least one portion of the plurality of portions in relation to another at least one portion of the plurality of portions, providing the at least one coupling feature comprising providing a forward coupling feature and providing an aft coupling feature; and
providing a tilting feature configured to dispose at least one portion of the plurality of portions at an angle in relation to a horizontal plane;
disposing head coil system in relation to a bed of a medical transporter; and
at least one of coupling, locking, unlocking, and decoupling the lower portion in relation to the bed of the medical transporter.
