A coaxial antenna with miniaturized choke for minimally invasive interstitial heating.

IEEE Trans Biomed Eng

IPCF, CNR-Area della ricerca di Pisa, 56124 Pisa, Italy.

Published: January 2003

AI Article Synopsis

  • A new coaxial antenna designed for microwave interstitial coagulative therapy operates at 2450 MHz and includes a miniaturized sleeve choke to minimize back heating effects and enhance performance regardless of the antenna's depth in tissue.
  • The choke's unique design allows for a compact size and adjustable length during operation, improving ease of use.
  • Experimental results and numerical simulations validate the choke's effectiveness, highlighting the device's potential for minimally invasive medical applications.

Article Abstract

We present a new coaxial antenna for microwave interstitial coagulative therapy, working at 2450 MHz and endowed with a miniaturized sleeve choke in order to reduce back heating effects and make the system response less dependent on the antenna insertion depth into the tissue; the way the choke is implemented makes the overall transversal size minimum and allows small adjustments of the choke section length even during operation. We describe the main technical features of the antenna and show experimental results clearly proving the choke effectiveness. Numerical simulations well agree with experimental data, confirming the suitability of the proposed device for minimally invasive medical applications.

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http://dx.doi.org/10.1109/TBME.2002.807320DOI Listing

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