Radar Patient Bed Layout for Contactless Position and Vital Sensing
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Solution Overview
Problem
Imaging medical apparatuses face challenges in obtaining comprehensive information about a patient's position and physiological parameters during imaging procedures, as existing technologies are limited in accurately determining geometric and physiological data without causing interference or image artifacts.
Innovation Solution
Incorporating a patient bed with a support plate equipped with radar antennas, specifically patch antennas, that emit and receive electromagnetic signals to gather geometric and physiological data, minimizing environmental interference and allowing for precise data analysis through a control and evaluation unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If radar antennas are placed away from the patient to avoid environmental interference, then environmental interference is reduced, but the distance between patient and antenna increases reducing measurement precision
Solution Approach 1:
The patent uses the patient bed structure as an intermediary carrier to hold the radar antennas at an optimized distance from the patient. The bed acts as a mediator that positions the antennas close enough for precise measurement while maintaining sufficient separation to minimize environmental interference, thus resolving the spatial contradiction.
2Measurement precision
If multiple radar antennas are used to improve data acquisition, then measurement precision improves, but device complexity increases
Solution Approach 1:
The patent implements multiple radar antennas that serve multiple functions: determining patient position, monitoring breathing, detecting heart rate, and measuring other physiological parameters. This multi-functionality approach allows a single radar system to replace multiple separate sensing devices, thereby improving measurement precision without proportionally increasing overall device complexity.
Solution Approach 2:
The patent combines multiple radar antennas into a single integrated patient bed system, merging their functions for position and physiological monitoring. This consolidation allows the system to achieve enhanced measurement capabilities while managing complexity through unified control and evaluation architecture.
3Ease of manufacture
If the patient bed structure is simplified to reduce device complexity, then ease of manufacture improves, but the capability to acquire patient information is reduced
Solution Approach 1:
The patient bed is designed as a multi-functional platform that not only supports the patient mechanically but also integrates radar antennas for information acquisition. This universal design allows the bed structure to serve dual purposes, maintaining manufacturing simplicity while enabling comprehensive patient monitoring capabilities through the integrated radar 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 non-destructive, contactless acquisition of patient data, including geometric and physiological parameters, with minimal interference, facilitating improved imaging procedures and reducing image artifacts, especially in x-ray computed tomography and C-arm x-ray apparatuses.
Implementation Method 1
a patient bed for an imaging medical apparatus with a support plate that has (carries) at least one radar antenna
Implementation Method 2
the secondary signals reflected by the patient or tissues of the patient are received with the same radar antenna
Data Source
AI summary
A patient bed for an imaging medical apparatus has a patient support plate that has at least one radar antenna to obtain physiological and/or geometric data from a patient the patient support plate. In a method for the operation of such a patient bed having at least one radar antenna in an imaging medical apparatus, the at least one radar antenna is operated to obtain data from the patient on the patient support plate.