Document Detail


A modified design of microwave tissue coagulator monopolar antenna for applications in laparoscopic hepatic surgery.
MedLine Citation:
PMID:  9488570     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Massive hemorrhage is of primary concern during hepatic surgery. In this study, we not only modified the monopolar antenna of the microwave tissue coagulator but also investigated its feasible applications in laparoscopic hepatic surgery. In addition, the conventional antenna of the microwave tissue coagulator was used as a model. A catheter was attached to the antenna. The network analyzer was used to analyze the impedance of the novel monopolar antenna. Moreover, we designed and constructed a novel monopolar antenna for the microwave tissue coagulator. The antenna is gas-leak-proof, having sufficient stiffness and length and retaining similar microwave emission strength, pattern, and shielding property as the conventional antenna. In vitro tests in porcine liver confirm the coagulation and hemostatic effects of the novel type laparoscopic monopolar antenna. Results presented herein confirm the effectiveness of a laparoscopic monopolar antenna for a microwave tissue coagulator with sufficient coagulation effects.
Authors:
S M Huang; I C Hsu; C W Wu; W Y Lui
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Surgical laparoscopy & endoscopy     Volume:  8     ISSN:  1051-7200     ISO Abbreviation:  Surg Laparosc Endosc     Publication Date:  1998 Feb 
Date Detail:
Created Date:  1998-04-29     Completed Date:  1998-04-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9107230     Medline TA:  Surg Laparosc Endosc     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  44-8     Citation Subset:  IM    
Affiliation:
Department of Surgery, Veterans General Hospital, and College of Medicine, National Yang-Ming University, Taipai, Taiwan, R.O.C.
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MeSH Terms
Descriptor/Qualifier:
Animals
Electrocoagulation / instrumentation*,  methods
Equipment Design
Humans
Laparoscopes*
Liver / surgery*
Microwaves
Swine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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