The main electromagnetic simulation applications in the biomedical field are:
- Physiological Impact: Studies effects of magnetic, electric fields, and RF radiation
- Virtual Prototyping: Uses virtual models to preview electronic product behaviour
- Optimization: Adjusts parameters for enhanced performance to reduce real-world tests
- Safety Analysis: Predicts harmful effects from emissions, susceptibilities, or high SAR
- Certification & Compliance: Validated devices against standards (e.g., FDA, CE)
Ansys Electromagnetic Simulation Tools are often used for biomedical applications with the Ansys Human Body Model. The Human Body Model accurately replicates the human form in terms of dimensions and electrical properties (relative permittivity and conductance).
In the domain of biomedical electromagnetics, we provide a wide range of services including
- Design of implanted antennas and electromagnetic sensors
- Development of antennas and electromagnetic sensors for on-body and wearable applications
- Electromagnetic simulations of bio-engineering aspects using a full human body model cover volume current density, electric/magnetic field analysis, as well as RF radiation and loss effects
- Simulation of Specific Absorption Rate (SAR) distribution within human organs
- Assistance with FDA/FCC certification processes, employing Ansys simulation software for both electromagnetic and thermal analyses
- Design of inductor-based devices suitable for wireless power transfer, data transmission, and charging systems in the near field
- Design and development of phased array antennas for 3D microwave imaging and focusing systems
Here are a few examples of biomedical electromagnetic application analysis and design:
Wireless Power Transfer
Wireless power transfer involves the development of rechargeable implantable medical devices, such as pacemakers, to improve the quality of life for patients.
Capacitive Touch Sensor
A capacitive touch sensor relies on the principle of electrical capacitance to detect touch input.
Heart Rate Monitor Device
A heart rate monitor device transmits heart rate data to a cellular phone using the 2.45 GHz band. Through the GPS capabilities of the cellular phone, users can visualize their heart rate information in relation to their location.
Pacemaker Antenna Design
The design of an implantable antenna for a pacemaker is introduced. Some pacemakers possess supplementary functions, such as collecting information from the human body for transmission to an external receiver. Ensuring proper functionality requires thorough testing of the communication link between the pacemaker within the body and the external receiver.
Electronic Capsule Sensor
Medical diagnostics using electronic capsules involves patients swallowing a capsule equipped with a camera, transmitting images wirelessly through RF communication outside the body. The camera’s visual data is transmitted to a receiver positioned externally but nearby.
SAR (Specific Absorption Rate) Analysis
Simulation of Specific Absorption Rate (SAR) distribution within human organs.
Near Field Focusing
Combined electromagnetic and thermal simulations.