IMAGING DEVICE FOR MRI-GUIDED MEDICAL INTERVENTIONAL SYSTEMS

• US 20090112082A1
• Filed: 09/24/2008
• Published: 04/30/2009
• Est. Priority Date: 06/07/2007
• Status: Active Grant

• Current Assignee: Clearpoint Neuro, Inc.
• Original Assignee: SurgiVision Inc.
• Inventors: Sayler, David, Peterson, David M., Keidl, Christopher, Piferi, Peter
• Granted Patent: US 8,208,993 B2
• Time in Patent Office: Days
• US Class Current: 600/411
• CPC Class Codes: A61B 2017/00212 using remote controls
• CPC Class Codes: A61B 2017/00911 for fields applied by a magnetic resonance imaging system
• CPC Class Codes: A61B 2017/3407 including a base for support on the body
• CPC Class Codes: A61B 2017/3409 including needle or instrument drives
• CPC Class Codes: A61B 2034/101 Computer-aided simulation of surgical operations
• CPC Class Codes: A61B 2034/107 Visualisation of planned trajectories or target regions
• CPC Class Codes: A61B 2034/252 indicating steps of a surgical procedure
• CPC Class Codes: A61B 2034/254 being adapted depending on the stage of the surgical procedure
• CPC Class Codes: A61B 2034/256 having a database of accessory information, e.g. including context sensitive help or scientific articles
• CPC Class Codes: A61B 2090/103 Cranial plugs for access to brain
• CPC Class Codes: A61B 2090/306 using optical fibres
• CPC Class Codes: A61B 2090/3614 using optical fibre
• CPC Class Codes: A61B 2090/373 using light, e.g. by using optical scanners
• 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 2090/3983 Reference marker arrangements for use with image guided surgery
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61B 34/25 : User interfaces for surgical systems
• CPC Class Codes: A61B 34/71 : Manipulators operated by drive cable mechanisms
• CPC Class Codes: A61B 34/74 : Manipulators with manual electric input means
• CPC Class Codes: A61B 5/055 : involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
• CPC Class Codes: A61B 5/4064 : Evaluating the brain A61B5/031, A61B5/369, A61B5/14553 take precedence
• 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: A61B 90/361 : Image-producing devices, e.g. surgical cameras
• CPC Class Codes: A61B 90/37 : Surgical systems with images on a monitor during operation
• CPC Class Codes: A61N 1/372 : Arrangements in connection with the implantation of stimulators
• CPC Class Codes: G01R 33/283 : Intercom or optical viewing arrangements, structurally associated with NMR apparatus
• CPC Class Codes: G01R 33/286 : involving passive visualization of interventional instruments, i.e. making the instrument visible as part of the normal MR process
• CPC Class Codes: G01R 33/287 : involving active visualization of interventional instruments, e.g. using active tracking RF coils or coils for intentionally creating magnetic field inhomogeneities
• 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

An MRI-guided interventional system includes a head support apparatus for engaging and securing the head of a patient, and a targeting frame configured to be secured to the body of a patient. The targeting frame includes a cooperating targeting cannula that is configured to guide placement of an interventional device through a burr hole in a patient'"'"'s skull in vivo. The system includes an MRI-compatible camera positioned proximate to the head support apparatus, and an MRI-compatible imaging device having one end attached to the targeting frame to provide a local field of view of the burr hole, and an opposite end in communication with the camera. The system also includes a display output module coupled to the camera for receiving electrical signals therefrom and for displaying images corresponding thereto.

Claims

1. An MRI-guided interventional system, comprising:

a frame configured to be secured to the body of a patient, wherein the frame includes a cooperating targeting cannula that is configured to guide placement of an interventional device through a burr hole in a patient'"'"'s skull in vivo;

a head support apparatus;

an MRI-compatible camera proximate to the head support apparatus; and

an MRI-compatible imaging device having one end attached to the frame to provide a local field of view of the burr hole, and an opposite end in communication with the camera.

2. The system of claim 1, wherein the imaging device is removably secured to the frame via a bracket, and wherein the bracket comprises a sleeve configured to slidably receive the imaging device therein.

3. The system of claim 1, wherein the targeting cannula is slidably secured within a tubular guide attached to the frame, wherein the imaging device is removably secured to the tubular guide via a bracket, and wherein the bracket comprises a sleeve configured to slidably receive the imaging device therein.

4. The system of claim 1, further comprising a display output module coupled to the camera for receiving electrical signals therefrom and for displaying images corresponding thereto.

5. An MRI-guided interventional system, comprising:

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, comprising a pair of elongated arms extending outwardly in adjacent, spaced-apart relationship;

a pair of head engagement rods, wherein each rod is adjustably associated with a respective arm, and wherein the rods are configured to engage a patient'"'"'s head within the head support frame; and

a longitudinally extending head coil apparatus positioned proximate to the head support frame and configured to surround at least a portion of a patient'"'"'s head, wherein the head coil apparatus comprises a plurality of spaced-apart RF coils;

a targeting frame configured to be secured to the skull of a patient, wherein the frame includes a cooperating targeting cannula that is configured to guide placement of an interventional device through a burr hole in a patient'"'"'s skull in vivo;

an MRI-compatible camera proximate to the head support assembly; and

an MRI-compatible imaging device having one end attached to the targeting frame to provide a local field of view of the burr hole, and an opposite end in communication with the camera.

6. The system of claim 5, wherein the head coil apparatus has an open-face, substantially U-shaped configuration with spaced-apart leg portions having free ends, wherein the head coil apparatus is positioned between the head support frame arms such that the leg portion free ends extend upwardly.

7. The system of claim 5, wherein the head coil apparatus is adjustable along a longitudinal direction relative to the head support frame.

8. The system of claim 5, wherein the head coil apparatus has an open-face, substantially U-shaped configuration and comprises a plurality of spaced-apart access windows formed therein.

9. The system of claim 5, wherein the camera is attached to the base adjacent the head coil apparatus.

10. An MRI-guided interventional system, comprising:

a pair of targeting frames configured to be secured to the body of a patient in adjacent, spaced-apart relationship, wherein each frame includes a cooperating targeting cannula that is configured to guide placement of an interventional device through a burr hole in a patient'"'"'s skull in vivo;

a head support apparatus;

a pair of MRI-compatible cameras proximate to the head support apparatus; and

a pair of MRI-compatible imaging devices, each having one end attached to a respective targeting frame to provide a local field of view of a respective burr hole, and each having an opposite end in communication with a respective camera.

11. The system of claim 10, further comprising a display output module coupled to the cameras for receiving electrical signals therefrom and for displaying images corresponding thereto.