Adjustable laparoscopic surgical device-LARA-KI: a new approach to the posterior segments liver resection-experimental ex vivo study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00843989%3A_____%2F16%3AE0105641" target="_blank" >RIV/00843989:_____/16:E0105641 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1177/1553350616664073" target="_blank" >http://dx.doi.org/10.1177/1553350616664073</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/1553350616664073" target="_blank" >10.1177/1553350616664073</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Adjustable laparoscopic surgical device-LARA-KI: a new approach to the posterior segments liver resection-experimental ex vivo study

Popis výsledku v původním jazyce

Liver resection is standard treatment method for any liver lesions. Laparoscopic liver resection is associated with lower intraoperative blood loss and less number of complications. The access to the posterior part of liver right lobe is very uncomfortable and inaccessible in use of laparoscopic surgery. With these experiences it was developed new laparoscopic device, which can break its long axis and allows the application of radiofrequency energy in areas that are current technical possibilities so far unavailable. The device is equipped with four telescopic needle electrodes that coagulate tissue after delivery of radiofrequency energy. Ex vivo testing was performed in years 2012 and 2013 at the University Hospital Ostrava on porcine liver tissue. The main goal of the testing was to figure out if the newly proposed electrode layout is suitable for sufficient tissue coagulation and creating a safety zone around lesions. During the ex vivo testing, material of needle electrodes has been improved to achieve the lowest possible of adhesion. The power supply was adjusted from 20W to 120W and monitored the ablation time which varied from 110 to 10 seconds. Subsequently, optimal power delivery and time for coagulation was determined. This experimental study demonstrated the feasibility and safety of the newly developed device. Based on the ex vivo testing, LARA-K1 can create a safety zone of coagulation. For further assessment of the new device, the in vivo study should be performed.

Název v anglickém jazyce

Adjustable laparoscopic surgical device-LARA-KI: a new approach to the posterior segments liver resection-experimental ex vivo study

Popis výsledku anglicky

Liver resection is standard treatment method for any liver lesions. Laparoscopic liver resection is associated with lower intraoperative blood loss and less number of complications. The access to the posterior part of liver right lobe is very uncomfortable and inaccessible in use of laparoscopic surgery. With these experiences it was developed new laparoscopic device, which can break its long axis and allows the application of radiofrequency energy in areas that are current technical possibilities so far unavailable. The device is equipped with four telescopic needle electrodes that coagulate tissue after delivery of radiofrequency energy. Ex vivo testing was performed in years 2012 and 2013 at the University Hospital Ostrava on porcine liver tissue. The main goal of the testing was to figure out if the newly proposed electrode layout is suitable for sufficient tissue coagulation and creating a safety zone around lesions. During the ex vivo testing, material of needle electrodes has been improved to achieve the lowest possible of adhesion. The power supply was adjusted from 20W to 120W and monitored the ablation time which varied from 110 to 10 seconds. Subsequently, optimal power delivery and time for coagulation was determined. This experimental study demonstrated the feasibility and safety of the newly developed device. Based on the ex vivo testing, LARA-K1 can create a safety zone of coagulation. For further assessment of the new device, the in vivo study should be performed.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FJ - Chirurgie včetně transplantologie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Surgical innovation

ISSN

1553-3506

e-ISSN

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Svazek periodika

23

Číslo periodika v rámci svazku

n. 6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

2

Strana od-do

"p. 644-645"

Kód UT WoS článku

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EID výsledku v databázi Scopus

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