MRI-compatible head fixation frame with cooperating head coil apparatus

• US 8,099,150 B2
• Filed: 09/24/2008
• Issued: 01/17/2012
• Est. Priority Date: 09/24/2007
• Status: Expired due to Fees

• Current Assignee: MRI Interventions, Inc. (Clearpoint Neuro, Inc.)
• Original Assignee: MRI Interventions, Inc. (Clearpoint Neuro, Inc.)
• Inventors: Piferi, Peter, Keidl, Christopher, Peterson, David
• Primary Examiner(s): Le, Long V.
• Assistant Examiner(s): Negarestan, Farshad
• Application Number:
  US12/237,091
• Publication Number:
  US 20090088627A1
• Time in Patent Office: 1,210 Days
• Field of Search: None
• US Class Current: 600/422
• CPC Class Codes: A61B 2034/101 Computer-aided simulation of surgical operations
• CPC Class Codes: A61B 2090/103 Cranial plugs for access to brain
• CPC Class Codes: A61B 2090/374 NMR or MRI
• CPC Class Codes: A61B 2090/3933 Liquid markers
• CPC Class Codes: A61B 2090/3937 Visible markers
• CPC Class Codes: A61B 2090/395 with marking agent for marking skin or other tissue
• CPC Class Codes: A61B 2090/3954 magnetic, e.g. NMR or MRI
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61B 5/055 involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
• CPC Class Codes: A61B 5/702 Posture restraints
• CPC Class Codes: A61B 90/11 with guides for needles or instruments, e.g. arcuate slides or ball joints
• CPC Class Codes: A61B 90/14 Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
• CPC Class Codes: G01R 33/34046 Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
• CPC Class Codes: G01R 33/3415 comprising arrays of sub-coils , i.e. phased-array coils with flexible receiver channels

Abstract

A head support assembly includes a base configured to be removably secured to an MRI scanner gantry, a head support frame attached to the base, and a longitudinally extending head coil apparatus adjustably secured to the head support frame. The head support frame includes a pair of elongated arms that extend outwardly in adjacent, spaced-apart, substantially co-planar relationship to form an area for receiving the head of a patient. Each arm includes a respective free end, and a head engagement rod is adjustably associated with each respective arm free end. The head engagement rods are configured to engage a patients head within the head support frame. One or more additional head engagement rods may extend outwardly from the head support frame between the pair of arms.

Claims

1. A head support assembly for immobilizing the head of a patient during an MRI-guided procedure, comprising:

a base configured to be removably secured to a gantry;

a head support frame attached to the base;

a longitudinally extending head coil apparatus secured to the base, wherein the head coil apparatus comprises a plurality of RF coils and is configured to surround at least a portion of the patient'"'"'s head within the head support frame, wherein the head coil apparatus includes opposite first and second end portions, wherein the head support frame is positioned at the first end portion of the head coil apparatus, and wherein the head coil apparatus first end portion comprises a plurality of spaced-apart access windows formed therein; and

a plurality of head engagement rods adjustably associated with the head support frame, wherein the rods are configured to engage the patient'"'"'s head within the head support frame, and wherein each rod extends through a respective access window of the head coil apparatus.

2. The head support assembly of claim 1, wherein the head coil apparatus has an open-face, substantially U-shaped configuration with spaced-apart leg portions having free ends that extend upwardly.

3. The head support assembly of claim 1, wherein the head support frame comprises a pair of arcuate members extending outwardly from the base in adjacent, spaced-apart relationship to form a substantially U-shaped head support frame.

4. The head support assembly of claim 3, wherein the arcuate arms are substantially co-planar.

5. The head support assembly of claim 1, wherein each head engagement rod extends along a respective different direction relative to a longitudinal direction defined by the head support frame.

6. The head support assembly of claim 1, wherein the longitudinally extending head coil apparatus defines a longitudinal direction and wherein the head coil second end portion extends in the longitudinal direction away from the patient'"'"'s head.

7. The head support assembly of claim 1, wherein the head support frame is configured to substantially surround the head of a patient.

8. The head support assembly of claim 1, further comprising a head support frame top portion secured to the head support frame, and wherein the top portion includes at least one head engagement rod adjustably associated therewith, wherein the at least one rod is configured to engage a patient'"'"'s head within the head support frame.

9. The head support assembly of claim 1, wherein the head support frame comprises a pair of elongated arms extending outwardly in adjacent, spaced-apart relationship, wherein each arm comprises a free end, and wherein at least one of the head engagement rods is movable proximally and distally relative to the free end of a respective arm.

10. The head support assembly of claim 1, wherein the base includes adjustable fasteners that facilitate securing the base to different gantries.

11. A head support assembly for immobilizing the head of a patient during an MRI-guided procedure, comprising:

a base, wherein the base includes adjustable fasteners that facilitate removably securing the base to a gantry;

a head support frame attached to the base;

a longitudinally extending head coil apparatus secured to the base, wherein the head coil apparatus comprises a plurality of RF coils and is configured to surround at least a portion of the patient'"'"'s head within the head support frame, wherein the head coil apparatus includes opposite first and second end portions, wherein the head support frame is positioned at the first end portion of the head coil apparatus, and wherein the head coil apparatus first end portion comprises a plurality of spaced-apart access windows formed therein;

a plurality of head engagement rods adjustably associated with the head support frame, wherein the rods are configured to engage the patient'"'"'s head within the head support frame, and wherein each rod extends through a respective access window of the head coil apparatus; and

at least one camera holder attached to the base, wherein the camera holder is configured to receive an MRI-compatible camera therewithin.