VIPS Headset Detecting Brain Fluid Changes via Magnetic Phase Shifts
Solution Overview
Problem
Current medical technologies lack a noninvasive, continuous method for monitoring changes in intracranial fluid composition and distribution, which is critical for early detection of conditions like bleeding or edema, as existing invasive methods are not feasible for all brain injuries and no commercial VIPS devices are available for clinical use.
Innovation Solution
A VIPS system comprising a headset with transmission modules and a processing unit that transmits time-varying magnetic fields through the tissue, receiving and analyzing phase shifts to detect fluid changes, and wirelessly transmitting data to an external computing device for real-time monitoring and alerting clinicians.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If invasive monitoring methods (ICP monitors, microdialysis probes) are used to detect fluid changes in the brain, then measurement precision is improved, but patient harm and device complexity increase due to craniotomy requirements
Solution Approach 1:
The patent replaces invasive mechanical probe insertion with a noninvasive electromagnetic field-based detection system. The VIPS device uses time-varying magnetic fields to induce currents in cerebral fluids, detecting phase shifts and impedance changes without physical penetration of the cranium, thereby eliminating surgical harm while maintaining detection capability
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary between the detection system and the cerebral fluids. Instead of direct mechanical contact with probes, the system uses magnetic fields to indirectly sense fluid changes through phase shift measurements, allowing noninvasive monitoring with sufficient precision
2Duration of action of moving object
If invasive monitoring methods are used, then continuous monitoring capability is improved, but ease of operation deteriorates due to restricted patient positioning and prolonged monitoring limitations
Solution Approach 1:
By replacing the mechanical constraint of invasive probe insertion with a noninvasive electromagnetic field approach, the system eliminates positioning restrictions. Patients can be monitored continuously without the need for specific head positions or surgical access points, greatly improving ease of operation and patient comfort during prolonged monitoring
3Productivity
If VIPS technology is developed into a commercial device, then productivity and clinical utility are improved, but device complexity and manufacturing challenges increase
Solution Approach 1:
The patent designs the VIPS device with multi-functional capabilities, using the same electromagnetic field generation and detection system for various fluid change detections (edema, bleeding, CSF flow). This universal approach consolidates multiple monitoring functions into a single device platform, reducing overall system complexity while maintaining broad clinical utility
Solution Approach 2:
The patent employs signal processing techniques that create virtual copies of the transmitted magnetic field signals at the receiver end. By using phase-shift spectroscopy to reconstruct fluid impedance information from received signal characteristics, the system simplifies the physical measurement apparatus while maintaining detection accuracy through mathematical signal processing
4Ease of operation
If noninvasive monitoring is implemented, then ease of operation is improved, but measurement precision may deteriorate due to signal attenuation through tissue
Solution Approach 1:
The patent optimizes multiple parameters including magnetic field frequency selection, coil geometry, and signal processing algorithms to maximize penetration depth and signal-to-noise ratio. By carefully selecting operating frequencies and using phase-shift measurement techniques rather than direct amplitude measurement, the system achieves sufficient precision through tissue without requiring invasive access
Solution Approach 2:
The patent implements continuous signal transmission and reception, allowing accumulation of measurement data over time. This continuous monitoring approach enables averaging of signals and filtering of noise, improving measurement precision through temporal integration while maintaining the noninvasive nature of the system
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 noninvasive, continuous monitoring of fluid changes in the brain, providing timely alerts for potentially harmful conditions, thereby improving patient care by overcoming the limitations of existing invasive methods and lack of commercial VIPS devices.
Implementation Method 1
transmits a first time varying magnetic field through the tissue of the patient
Data Source
Figure 1
Figure 1A
Figure 1B
AI summary
A device for detecting spatial differences in fluid level changes in a tissue of a patient may include a support structure for securing the device to a body part of the patient, a processing element operably connected to the support structure, a wireless networking interface operably connected to the support structure and in communication with the processing element and an external computing device via a network, a first transmission module operably connected to the support structure and in communication with the processing element, a second transmission module and a third transmission module operably connected to the support structure and in communication with the processing element. When activated, the first transmission module transmits a first time varying magnetic field through the tissue of the patient. The second and third transmission modules, which are spatially separated from one another, receive first and second versions, respectively, of the first time varying magnetic field.