Patent
Electrosurgical devices with balun structure for air exposure of antenna radiating section and method of directing energy to tissue using same
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TLDR
An energy applicator for directing energy to tissue includes a feedline having an inner conductor, an outer conductor and a dielectric material disposed therebetween, and an antenna assembly having a radiating section operably coupled to the feedline.Abstract:
An energy applicator for directing energy to tissue includes a feedline having an inner conductor, an outer conductor and a dielectric material disposed therebetween, and an antenna assembly having a radiating section operably coupled to the feedline. The energy applicator also includes a first balun structure configured to substantially confine energy to the radiating section when the energy applicator is energized and disposed in tissue, and a second balun structure configured to substantially prevent energy emitted from the radiating section from propagating proximal to the second balun structure along the feedline when the energy applicator is energized but not disposed in tissue.read more
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Patent
Narrow gauge high strength choked wet tip microwave ablation antenna
Joseph D. Brannan,Kenlyn S. Bonn +1 more
TL;DR: An electromagnetic surgical ablation probe with a coaxial feedline and cooling chamber is described in this paper, which includes a dipole antenna arrangement having a radiating section, a distal tip coupled to the distal end of a ring-like balun short, or choke, which may control a radiation pattern of the probe.
Patent
Microwave ablation catheter and method of utilizing the same
Casey M. Ladtkow,Joseph D. Brannan,Darion R. Peterson,Eric W. Larson,Kaylen J. Haley,William J. Dickhans,Jason A. Case +6 more
TL;DR: In this article, a microwave ablation system configured for use in luminal network is provided, which includes a microwave energy source and a tool for treating tissue, and an extended working channel is configured to provide passage for the tool.
Patent
Dual antenna microwave resection and ablation device, system and method of use
TL;DR: In this article, a system for generating microwave energy includes a microwave generator that generates first and second microwave signals, a transmission line and a dual-antenna microwave device, where the first antenna receives the first microwave signal from the transmission line between a first conductor and a second conductor and the second antennas receives the second microwave signal between the second and a third conductor.
Patent
Flexible microwave catheters for natural or artificial lumens
TL;DR: In this article, a coupler for coupling a flexible coaxial cable, a fluid cooling system and the outer sheath of a catheter is described, which includes a fluid coupler body having a fluid inlet, fluid outlet, bypass bulb, an outer sheaths, and a fluid sealing system.
Patent
Microwave thermometry for microwave ablation systems
TL;DR: In this article, a microwave ablation system incorporates a microwave thermometer that couples with a microwave transmission network connecting a microwave generator to a microwave applicator to measure noise temperature, which is processed to separate out components the noise temperature including the NOI of the tissue being treated and the NOIs temperature of the microwave transmission networks.
References
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Patent
Vessel sealer and divider
TL;DR: An endoscopic bipolar forceps as mentioned in this paper includes an elongated shaft having opposing jaw members at a distal end thereof, which are movable relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to each another to a second position wherein jaw members cooperate to grasp tissue therebetween.
Journal ArticleDOI
Percutaneous radio-frequency ablation of hepatic metastases from colorectal cancer: long-term results in 117 patients.
Luigi Solbiati,Tito Livraghi,S N Goldberg,T. Ierace,Meloni F,M. Dellanoce,Luca Cova,Elkan F. Halpern,G S Gazelle +8 more
TL;DR: RF ablation is an effective method to treat hepatic metastases from colorectal carcinoma and Frequency and time to local recurrence were related to lesion size (P < or =.001).
Journal ArticleDOI
Ultrasonically guided percutaneous microwave coagulation therapy for small hepatocellular carcinoma
Toshihito Seki,Masayuki Wakabayashi,Taiichi Nakagawa,Takayuki Itho,Tomohiro Shiro,Kouji Kunieda,Masahiro Sato,Syouzou Uchiyama,Kyoichi Inoue +8 more
TL;DR: The efficacy of percutaneous microwave coagulation therapy for single unresectable hepatocellular carcinoma measuring 2 cm or less in greatest dimension (small HCC) was assessed.
Journal ArticleDOI
High-burst-strength, feedback-controlled bipolar vessel sealing
TL;DR: In this paper, the authors compared the bursting strength of three hundred thirty-one arteries and veins sealed by application of precisely controlled electrothermal energy and physical pressure, allowing for brief cooling in compression, in experimental animals and fresh abattoir vessels.