Structural Design and Experimental Study of a New Aerodynamic Electric Hook
10.3969/j.issn.1009-6604.2025.10.010
- VernacularTitle:空气动力学电钩的结构设计及实验研究
- Author:
Cao LIU
1
;
Junwei HUANG
;
Haidong LIAO
;
Jiale YUAN
;
Yang XIE
;
Jiafeng LIU
;
Yong YING
;
Xiangtai ZENG
;
Cong LIAO
Author Information
1. 赣南医科大学第一附属医院龙南医院普外科,龙南 341706
- Publication Type:Journal Article
- Keywords:
Electrosurgery;
Electric hook;
Aerodynamics;
New Zealand White Rabbit
- From:
Chinese Journal of Minimally Invasive Surgery
2025;25(10):628-635
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the safety parameters of the air-powered electrocautery hook and its advantages in laparoscopic surgery.Methods In pressure trauma experiments,21 healthy New Zealand White Rabbits were randomly divided into three groups.In each group,three sites(liver,intestine,and kidney)were selected from each rabbit,and the air-powered electrocautery hook was used under laparoscopy to apply pressure and time gradients in a cross-combination manner.The three groups of experimental rabbits were dissected at three time points:immediately after application,3 d post-application,and 7 d post-application.Pathological sections were prepared from the corresponding treated sites,and the extent of injury was assessed.In rabbit renal capsule removal experiment,another 20 healthy New Zealand White Rabbits were randomly divided into 2 groups.Renal capsule removal was performed by using an air-powered electrosurgical hook and a conventional electrosurgical hook,respectively,to compare the two groups in terms of surgical time,intraoperative bleeding volume,intraoperative complications,and the number of times of wiping speculum.Results In pressure trauma experiment,except for the intestinal tract at 3 seconds(P=0.060),the histopathological scores under 0.3 MPa pressure were significantly higher than those under 0.1 MPa(P<0.05)and 0.2 MPa(P<0.05)in all the tissues.In the tissue sampling groups at 3 d and 7 d post-surgery,no tissue damage was observed in any tissue at any time point under 0.1 MPa pressure.In rabbit renal capsule removal experiment,the aerodynamic electrocautery group had less intraoperative bleeding volume than the conventional electrocautery group[(2.9±0.5)ml vs.(3.4±0.5)ml,t=-2.280,P=0.035].There were no significant differences between the two groups in terms of surgical time,intraoperative complication rates,and the number of times of wiping speculum(P>0.05).Conclusions The safe pressure range for using the air-powered electrosurgical hook on the surfaces of the kidney and intestinal tract is within 0.2 MPa.Within the safe pressure range,blowing on tissue for 6 seconds or less is relatively safe.Using the air-powered electrosurgical hook in surgeries requiring the separation of loose connective tissue can reduce intraoperative bleeding.
