Movable medical bed system and MRI apparatus
Inventors
Xue, Ting Qiang • Wang, Jianmin • Li, Zhi Bin • Liu, Jian Hong
Assignees
Publication Number
US-12350208-B2
Publication Date
2025-07-08
Expiration Date
2042-02-22
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Abstract
A movable medical bed system may include a bed body and a power supply apparatus. The power supply apparatus may include an electrical energy receiver and an electrical energy transmitter. The electrical energy receiver is arranged on the bed body. The electrical energy transmitter is configured to be connected to a power source. The bed body is able to move to a working position relative to the electrical energy transmitter. When the bed body is located at the working position, the electrical energy receiver can engage in electrical energy transmission with the electrical energy transmitter without plugging-in. The movable medical bed system helps to make the supply of power more convenient.
Core Innovation
The invention provides a movable medical bed system comprising a bed body and a power supply apparatus that includes an electrical energy receiver on the bed body and an electrical energy transmitter connected to a power source. The bed body can move to a working position relative to the electrical energy transmitter, and when at this position, the receiver and transmitter can engage in electrical energy transmission without manual plug-in connection. This arrangement allows for automatic power supply, improving convenience by eliminating manual plugging and unplugging of power sources.
The problem being solved is that conventional movable medical beds with electrical equipment require a worker to manually plug in a power source upon reaching a target position and unplug it when leaving. Frequent plugging and unplugging operations are inconvenient and do not meet requirements for ease of use. The invention addresses this by enabling contactless or non-plugged power transfer, thereby facilitating power supply convenience and operational efficiency.
In one embodiment, the electrical energy receiver and transmitter are configured as a receiving coil and transmitting coil respectively, and transmit electrical energy by inductive coupling, allowing wireless power transmission without requiring precise alignment, thus accommodating positioning deviations. Additional features include electromagnetic shielding covers to contain electromagnetic interference, dock-guidance apparatus with insertion and guiding members to stabilize and guide bed positioning, wireless communication modules for receiving drive control signals, and integration with an MRI apparatus to facilitate power transmission and control without manual intervention.
Claims Coverage
The patent includes multiple independent claims covering various inventive features related to the movable medical bed system and its integration with an MRI apparatus.
Electrical energy transmission without plugging-in at working position
The movable medical bed system includes a bed body with an electrical energy receiver arranged at the bottom, and an electrical energy transmitter disposed on or below ground surface, arranged such that when the bed body is moved to a working position, the receiver and transmitter engage in electrical energy transmission in the vertical direction without requiring plugging-in, enabling automatic power supply.
Inductive coupling for wireless power transmission
The electrical energy receiver and transmitter are configured as a receiving coil and a transmitting coil respectively, which engage in electrical energy transmission by inductive coupling, allowing wireless power transfer without requiring high precision alignment.
Arrangement of receiver and transmitter opposite in height and docking direction
The electrical energy transmitter is located opposite the electrical energy receiver in the height (first) direction, positioned below the bed body, and arranged such that when the bed is docked in a docking direction, the transmitter is opposite and adjacent to the receiver, facilitating power transmission and simplifying structure.
Contact based electrical energy transmission using conductive body and rail
One of the receiver or transmitter is configured as an electrically conductive body and the other as an electrically conductive rail extending in the docking direction, enabling electrical energy transmission through contact when the bed body is at the working position, accommodating positional deviations without precise alignment.
Docking guidance apparatus for positioning stabilization
The system includes a docking guidance apparatus comprising an insertion member and a guiding member with a plug-in slot, configured such that the insertion member inserts into the slot during docking and restricts shifting perpendicular to the docking direction when docked, enhancing positioning accuracy and stability.
Pointed shape insertion member and matching plug-in slot
The free end of the insertion member has a pointed shape that gradually contracts toward the center in the docking direction, and the plug-in slot has a bottom shaped to match, increasing insertion success rate and improving operational efficiency.
Wireless communication modules for receiving drive control signals and controlling electric motor
The movable medical bed system includes a wireless communication receiver on the bed body to receive drive control signals via wireless or optical communication, a drive controller connected to the receiver and to an electric motor arranged on the bed body; the drive controller controls the electric motor based on received drive control signals and acquires electrical energy via the electrical energy receiver.
Battery integration for energy acquisition and charging
The system includes a battery connected to the drive controller for energy acquisition and to the electrical energy receiver for charging, enabling power supply to the drive controller before electrical energy transmission engagement.
User operating panel and wireless transmitter for drive control signals
An operating panel generates drive control signals based on user operations and is connected to a wireless communication transmitter that sends these signals to the wireless communication receiver on the bed body by wireless or optical communication, facilitating convenient electric motor control.
Communication device with analog-to-digital converter, digital signal processor, and wireless transceiver for RF coil communication
The movable medical bed system includes a communication device arranged on the bed body comprising an analog-to-digital converter connected to an RF coil, a digital signal processor connected to the converter, and a wireless communication transceiver connected to the processor, enabling wireless communication with a control system via wireless or optical means.
The claims cover a movable medical bed system with contactless or contact-based electrical energy transmission between a receiver and transmitter arranged on the bed and floor respectively, features for electromagnetic shielding, docking guidance for positioning accuracy, wireless communication modules for control signal reception and electric motor control, optional battery charging, and integration with MRI apparatus for wireless communication and control during patient imaging procedures.
Stated Advantages
Helps to make the supply of power to the movable medical bed more convenient by eliminating the need for manual plugging and unplugging of power sources.
Inductive coupling wireless transmission does not require high precision alignment, allowing some position deviation and improving working efficiency.
Electromagnetic shielding reduces interference with the surrounding environment caused by electrical energy transmission.
Docking guidance apparatus ensures accurate positioning and stability of the bed at the working position.
Wireless communication enables convenient and remote control of the electric motor and other equipment on the bed.
Documented Applications
Use as a movable medical bed system in an MRI apparatus enabling convenient power supply and wireless control of electric motors and communication with the control system.
Enabling patient transport and movement between operating rooms and magnetic resonance examination rooms with improved power supply and control convenience.
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