Development of Body-Tissue Temperature-Control Transducer

Area of Science:

• Biomedical Engineering
• Medical Devices
• Thermal Therapy

Background:

• Accurate temperature monitoring is crucial for effective tissue cooling therapies.
• Existing methods for deep tissue temperature measurement can be invasive or lack precision.

Purpose of the Study:

• To develop and validate a transducer for non-invasive temperature measurement in deeper tissue layers during cooling.
• To optimize transducer design through simulation for improved thermal sensing.

Main Methods:

• Finite element analysis (FEA) was used to simulate temperature distribution in tissues and the transducer.
• An experimental transducer was designed based on simulation results.
• Comparative temperature measurements were performed against a needle thermometer before and after tissue cooling.

Main Results:

• The developed transducer showed strong correlation with needle thermometer measurements (r=0.723 before cooling, r=0.945 after cooling).
• Temperature differences between the transducer and needle thermometer were minimal, not exceeding ±0.2 °C.
• Simulation analysis informed the optimal transducer structure and material properties for accurate sensing.

Conclusions:

• The novel transducer enables accurate and non-invasive temperature measurement in deep tissue layers during cooling.
• The device holds potential for enhancing the safety and efficacy of thermal therapies.
• Simulation-driven design is an effective approach for developing advanced medical sensing devices.