scholarly journals A New Cold Plasma Jet: Performance Evaluation of Cold Plasma, Hybrid Plasma and Argon Plasma Coagulation

Plasma ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 189-200 ◽  
Author(s):  
Lawan Ly ◽  
Sterlyn Jones ◽  
Alexey Shashurin ◽  
Taisen Zhuang ◽  
Warren Rowe ◽  
...  
Keyword(s):  
Cold Plasma ◽  
Ex Vivo ◽  
Argon Plasma Coagulation ◽  
Tumor Resection ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Atmospheric Plasma ◽  
Tissue Temperature ◽  
Plasma Coagulation ◽  
Plasma Energy

The use of plasma energy has expanded in surgery and medicine. Tumor resection in surgery and endoscopy has incorporated the use of a plasma scalpel or catheter for over four decades. A new plasma energy has expanded the tools in surgery: Cold Atmospheric Plasma (CAP). A cold plasma generator and handpiece are required to deliver the CAP energy. The authors evaluated a new Cold Plasma Jet System. The Cold Plasma Jet System consists of a USMI Cold Plasma Conversion Unit, Canady Helios Cold Plasma® Scalpel, and the Canady Plasma® Scalpel in Hybrid and Argon Plasma Coagulation (APC) modes. This plasma surgical system is designed to remove the target tumor with minimal blood loss and subsequently spray the local area with cold plasma. In this study, various operational parameters of the Canady Plasma® Scalpels were tested on ex vivo normal porcine liver tissue. These conditions included various gas flow rates (1.0, 3.0, 5.0 L/min), powers (20, 40, 60 P), and treatment durations (30, 60, 90, 120 s) with argon and helium gases. Plasma length, tissue temperature changes, and depth and eschar injury magnitude measurements resulting from treatment were taken into consideration in the comparison of the scalpels. The authors report that a new cold plasma jet technology does not produce any thermal damage to normal tissue.

Argon Plasma Coagulation (APC) for Endo-Urological Procedures: Ex-Vivo Evaluations of Hemostatic Properties

2003 ◽  
Vol 44 (2) ◽  
pp. 272-276 ◽  
Author(s):  
Oliver Reich ◽  
Peter Schneede ◽  
Anwar Mseddi ◽  
Dirk Zaak ◽  
Michael Siebels ◽  
...  
Keyword(s):  
Ex Vivo ◽  
Argon Plasma Coagulation ◽  
Argon Plasma ◽  
Plasma Coagulation ◽  
Urological Procedures

Investigation of the thermal tissue effects of the argon plasma coagulation modes “pulsed” and “precise” on the porcine esophagus, ex vivo and in vivo

2009 ◽  
Vol 70 (2) ◽  
pp. 362-368 ◽  
Author(s):  
Georg F. Kähler ◽  
Mara N.I. Szyrach ◽  
Ansgar Hieronymus ◽  
Rainer Grobholz ◽  
Markus D. Enderle
Keyword(s):  
Ex Vivo ◽  
Argon Plasma Coagulation ◽  
Argon Plasma ◽  
Plasma Coagulation ◽  
Tissue Effects

Effects of argon plasma coagulation on human stomach tissue: An ex vivo study

2017 ◽  
Vol 32 (5) ◽  
pp. 1040-1045 ◽  
Author(s):  
Eun Jeong Gong ◽  
Ji Yong Ahn ◽  
Hwoon-Yong Jung ◽  
Young Soo Park ◽  
Hee Kyong Na ◽  
...  
Keyword(s):  
Ex Vivo ◽  
Argon Plasma Coagulation ◽  
Argon Plasma ◽  
Human Stomach ◽  
Plasma Coagulation ◽  
Stomach Tissue ◽  
Ex Vivo Study

scholarly journals Experimental Studies on Physicochemical Parameters of Water Samples before and after Treatment with a Cold Atmospheric Plasma Jet and its Optical Characterization

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Hom Bahadur Baniya ◽  
Rajesh Prakash Guragain ◽  
Gobinda Prasad Panta ◽  
Santosh Dhungana ◽  
Ganesh Kuwar Chhetri ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Cold Plasma ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Atmospheric Plasma ◽  
Nitrogen Species ◽  
Cold Atmospheric Plasma ◽  
Jet Interaction ◽  
Argon Plasma Jet

Cold plasma-liquid interaction becomes a growing interdisciplinary area of research involving plasma physics, fluid science, and chemistry. Plasma-liquid interaction has gained more interest over the last many years due to its potential applications in different fields. Cold atmospheric plasma jet is an emerging technology for surface drinking water treatment to improve quality and surface modification that is chemical-free and eco-friendly. Cold plasma treatment of water samples results in changes in turbidity, pH, and conductivity and in the formation of reactive oxygen and nitrogen species (RONS). As a result, plasma-activated water has a different chemical composition than water and can serve as an alternative technique for microbial disinfection. CAPJ has been generated by a high voltage 5 kV and a high frequency 19.56 kHz power supply. The discharge has been characterized by an optical method. To characterize the cold atmospheric pressure argon plasma jet, discharge plume temperature, and electron rotational and vibrational temperature have been determined. Cold atmospheric argon plasma jet produced at atmospheric condition contains high energetic electrons, ions, UV radiation, reactive oxygen, and nitrogen species named as cold plasma which has a wide range of applications in the biomedical industry, as well as in water treatment. Nowadays, researches have been carried out on ozonation through plasma jet interaction with surface drinking water. In this paper, we compare the change in physical and chemical parameters of surface water used for drinking purposes. The significant change in the physical parameters such as pH, turbidity, and electrical conductivity was studied. In addition, the significant changes in the concentration and absorbance of nitrate, ferrous, and chromium ions with respect to treatment time were studied. Our results showed that plasma jet interaction with surface drinking water samples can be useful for the improvement of water quality and an indicator for which reactive species play an important role in plasma sterilization.

scholarly journals The tissue effect of argon‐plasma coagulation with prior submucosal injection (Hybrid‐APC) versus standard APC: A randomized ex‐vivo study

2014 ◽  
Vol 2 (5) ◽  
pp. 383-390 ◽  
Author(s):  
Hendrik Manner ◽  
Alexander Neugebauer ◽  
Marcus Scharpf ◽  
Kirsten Braun ◽  
Andrea May ◽  
...  
Keyword(s):  
Ex Vivo ◽  
Argon Plasma Coagulation ◽  
Argon Plasma ◽  
Submucosal Injection ◽  
Plasma Coagulation ◽  
Ex Vivo Study ◽  
Tissue Effect

New generation argon plasma coagulation in flexible endoscopy: Ex vivo study and clinical experience

2006 ◽  
Vol 21 (7) ◽  
pp. 1122-1128 ◽  
Author(s):  
KAZUKI SUMIYAMA ◽  
MITSURU KAISE ◽  
MASAYUKI KATO ◽  
SYOUICHI SAITO ◽  
KENICHI GODA ◽  
...  
Keyword(s):  
Clinical Experience ◽  
Ex Vivo ◽  
Argon Plasma Coagulation ◽  
Argon Plasma ◽  
Flexible Endoscopy ◽  
Plasma Coagulation ◽  
New Generation ◽  
Ex Vivo Study

scholarly journals A145 A SUBMUCOSAL FLUID CUSHION PREVENTS MUSCLE LAYER DAMAGE DURING ARGON PLASMA COAGULATION

2020 ◽  
Vol 3 (Supplement_1) ◽  
pp. 8-9
Author(s):  
P J Belletrutti ◽  
R Maselli ◽  
T Stabler ◽  
M D Enderle ◽  
A Repici
Keyword(s):  
Normal Saline ◽  
Thermal Damage ◽  
Argon Plasma Coagulation ◽  
Argon Plasma ◽  
Muscle Layer ◽  
Tissue Temperature ◽  
Final Temperature ◽  
Injection Volume ◽  
Plasma Coagulation ◽  
Significant Difference

Abstract Background Thermal damage to the muscle layer of the gastrointestinal wall can occur during mucosal application of argon plasma coagulation (APC). This injury may be mitigated by creating a fluid cushion within the submucosal layer that physically separates the mucosa from the muscle layer and suppresses unwanted tissue temperature elevation. This in turn protects the muscle layer from thermal damage. The coagulative threshold of muscle proteins is known to be about 60°C, but there are no published systematic assessments of the minimum injection volume needed nor the ideal injectate to prevent thermal damage to the muscle layer during mucosal APC ablation. Aims Our aims were, firstly, to measure the final temperature inside the fluid cushion after mucosal ablation with APC and then to determine any differences in the final temperature between various injectable solutions. Secondly, we sought to determine the minimum volume of injectate required to protect the muscle layer from thermal damage. Methods All experiments were performed in an ex-vivo porcine gastrointestinal tract model. Five different fluids (normal saline, Glyceol, Gelafundin, Voluven and Eleview) of different volumes (range 0 - 5mL) were injected into the submucosa of the esophagus, stomach (fundus) and rectum to create a fluid cushion. APC was applied to the mucosa for a fixed duration (3s) at different power settings (ranging from 30 - 120W). Immediately after APC treatment, the final temperature was measured by placing a contact thermometer inside the fluid cushion, just on top of the muscle layer. Results There was no significant difference in the temperature measured at the surface of the muscle layer between elevation with normal saline, Glyceol, Gelafundin, Voluven and Eleview at all 3 tissue locations at equal injection volumes and power settings. The experiments showed that the temperature rose for each injectate with heightened power settings but also decreased with increasing volume of injected fluid. The minimum amount of fluid needed to protect the muscle layer from thermal damage was 2mL for the esophagus, stomach and rectum in the case of a power setting between 30 to 90W and 3mL in the case of 90 to 120W. Conclusions Normal saline and four commercially available submucosal injectates possess similar thermoregulatory effects as an insulator of the muscle layer during APC treatment. As opposed to the choice of injectate or anatomic location treated, the volume of fluid injected is the main determinant of the final temperature at the level of the muscularis propria. To reduce the likelihood of thermal damage to deeper layers of the GI tract when APC is applied, a minimum injection volume of 2mL is recommended if <90W of power is utilized. Funding Agencies None

Tu1052 The Tissue Effect of Argon Plasma Coagulation on Human Gastric Mucosa: Ex Vivo Study

2016 ◽  
Vol 83 (5) ◽  
pp. AB546
Author(s):  
Ji Yong Ahn ◽  
Hwoon-Yong Jung ◽  
Hee Kyong Na ◽  
Kee Wook Jung ◽  
Jeong Hoon Lee ◽  
...  
Keyword(s):  
Gastric Mucosa ◽  
Ex Vivo ◽  
Argon Plasma Coagulation ◽  
Argon Plasma ◽  
Human Gastric Mucosa ◽  
Plasma Coagulation ◽  
Ex Vivo Study ◽  
Tissue Effect
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