Slot antenna for microwave ablation

A coaxial slot antenna with frequency of ... - SpringerLink Abstract. Investigation of the structures and properties of antennas is important in the design of microwave ablation (MWA) system. In this study, we studied the performance of the novel tri- and single-slot antennas with frequency of 433 MHz in ex vivo conditions.

Levels of detail analysis of microwave scattering from human Similarly in the case of a complex location 2, the E-Norm absolute difference between both head models at the center of stroke circle was calculated as 0.04236 V/m and the same was maximum as well. 2018 IEEE International Symposium on Antennas and Propagation Antenna-Based Carpet Device FOR Extremely Large Obstacles: Experimental Verification Commission K 99

US5507791A - Microwave resonance therapy - Google Patents

1 2 2. Materials and method 2.1. The Single Slot MCA The single slot microwave coaxial antenna used in this study is depicted in Figure 1. 3D FINITE ELEMENT ANALYSIS FOR NON- ASYMMETRY STRUCTURE ANTENNA FOR ... The results illustrate that the coaxial-slot non-asymmetry structure antenna can be used in microwave ablation for destruction of the cancer cell in the area closed to the very fragile tissue or blood vessel. International Communications in Heat and Mass Transfer An analysis of heat transfer in liver tissue during microwave ablation using single and double slot antenna☆ P. Keangin, P. Rattanadecho⁎, T. Wessapan A Hybrid Slot/Monopole Antenna With Directional Heating Patterns For ... We present a new coax-fed interstitial antenna for generating directional heating patterns during microwave ablation. The antenna comprises a base-fed monopole wherein a portion of the outer ...

Microwave ablation of ex vivo bovine tissues using a dual…

General Surgery - Microwave Ablation A thin antenna, which emits microwaves, is then inserted into the tumor. The probe produces intense heat that ablates (destroys) tumor tissue, often within 10 minutes. Microwave ablation has a number advantages when compared to traditional RFA, a standard method for ablating liver tumors, These include: Radiofrequency and microwave ablation of lung tumors - Abbas ...

Microwave ablation of ex vivo bovine tissues using a dual…

Electric energy having wave-lengths of several meters has for some time been used for'deep penetration in what is generally known as diathermy. US8511317B2 - Method for ablating body tissue - Google Patents A tissue ablation system for treating fibrillation in a patient comprises a steerable interventional catheter having an energy source that emits a beam of energy to ablate tissue thereby creating a conduction block for aberrant electrical … US4475108A - Electronically tunable microstrip antenna - Google The microstrip antenna or radiator used for microwave transmission and receiving is conventionally known in the art to comprise a planar or curved radiating element of a specific shape and size overlaying and separated from a ground plane. Levels of detail analysis of microwave scattering from human

Coaxial Slot Antenna Design for Microwave Hyperthermia The Open Nanomedicine Journal, 2011, Volume 3 3 tastatic cancer that has spread throughout the body. This can be accomplished by several techniques that raise the body temperature, including the use of thermal chambers or hot water blankets. Interstitial Hyperthermia

Antenna design for microwave hepatic ablation using an ... An axisymmetric finite element method (FEM) model was employed to demonstrate important techniques used in the design of antennas for hepatic microwave ablation (MWA). To effectively treat deep-seated hepatic tumors, these antennas should produce a highly localized specific absorption rate (SAR) pattern and be efficient radiators at approved generator frequencies. Large and round ablation zones with microwave ablation: A ...

A Dual-Slot Microwave Antenna for More Spherical Ablation Zones: Ex ... The dual-slot microwave antenna created a more spherical ablation zone than did the monopole antenna both in vivo and ex vivo liver tissue. Greater control over power delivery can potentially extend the advantages of the dual-slot antenna design to higher power and longer treatment times. INTERNATIONAL JOURNAL OF RESEARCH IN COMPUTER APPLICATIONS AND ROBOTICS ... A new coaxial double slot antenna for microwave ablation therapy has been proposed in this research paper. The paper represents heating characteristics, temperature distribution pattern and finite element meshing analyses at A Novel Microwave Coaxial Slot Antenna for Liver Tumor Ablation This paper is on the effect of a T-ring shape structure to enhance the capability of a microwave coaxial slot antenna (MCA) in the treatment of liver cancer. Theoretical evaluation of the treatment effectiveness of a novel ...