Modular MRI Video Display Mounting for Flexible Patient Viewing
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Solution Overview
Problem
Existing video playback systems for MRI patients are cumbersome, limit patient mobility, require direct skin contact, and often interfere with MRI scans due to magnetic compatibility issues, failing to provide flexible, compact, and non-isolating entertainment options across various patient positions.
Innovation Solution
A modular video playback device with detachable display units, wireless power and data transmission, and adjustable mounting brackets for different patient positions, using optical arrangements to project images without direct contact and minimize magnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mirror is attached to a head coil to redirect the patient's view to a monitor, then the patient can view video content, but the image size depends on the patient's lying position which degrades image perception
Solution Approach 1:
The support arrangement allows the display device to be positioned laterally at a distance from the patient's head, creating a dynamic viewing geometry that maintains consistent image size across different patient positions. The optical arrangement projects the image from this lateral position, ensuring the image size remains stable regardless of whether the patient is in HFS, HFD, or other positions.
2Adaptability or versatility
If video goggles are used to provide video content to the patient, then the patient can view content in any position, but the patient is completely isolated from the outside world and preparation time increases
Solution Approach 1:
The display device is extracted from the patient's direct field of view and positioned laterally at a distance, supported by a support arrangement that holds it aside from the head coil area. This allows the patient to view content without being enclosed by goggles, maintaining awareness of surroundings while enabling video viewing in all patient positions.
3Ease of operation
If a heavy Innovision device with a parabolic mirror is used to magnify video images, then video content can be displayed, but the device height limits the patient table height and requires mechanical limitations
Solution Approach 1:
Instead of using a vertical arrangement with a parabolic mirror that projects upward, the invention positions the display device laterally in a horizontal dimension, supported by an adjustable support arrangement. This dimensional change eliminates the need for height limitations on the patient table while still providing video display functionality.
4Power
If a cable with power supply and signal transmission is attached to video goggles, then the video system can operate, but MRI compatibility is compromised and hygiene maintenance becomes difficult
Solution Approach 1:
The invention replaces the mechanical cable connection system with wireless power and data transmission technologies, eliminating physical cables that would interfere with MRI magnetic fields and eliminate hygiene concerns associated with cable attachments to the patient's head.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables flexible, compact, and MRI-compatible video playback that maintains patient awareness of surroundings, reducing preparation time and minimizing image artifacts across multiple patient positions.
Implementation Method 1
an optical arrangement attached to the support arrangement, in particular at least partially in front of the respective eye, for projecting an image output by the display device to the eye in the use position
Data Source
Figure 1
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Figure 4~5
AI summary
The invention relates to a modular video playback device (6) for a patient on a patient bed (5) in a magnetic resonance imaging (MRI) device (1), comprising: - at least one display module (9) with a display unit for each of the left and right eyes (25) of the patient's head (15), wherein each display unit comprises a display device (27), a support arrangement (26) for holding the display device (27) in a position spaced away from the head (15), in particular laterally, when the display unit is in a use position, and an optical arrangement (31) attached to the support arrangement (26), in particular at least partially in front of the respective eye (25), for projecting an image output by the display device (27) to the eye (25) in the use position, - at least one holder (10),which is detachably connectable to the display module (9) and has fastening means for detachably attaching the holder (10) to at least one component (7) arranged and/or arrangable on the patient bed (5), - a data transmission arrangement (12) connectable to the display module (9), and - a power supply arrangement (11) connectable to the display module (9).