Related Experiment Video
Updated: Sep 23, 2025
09:52
An Implantable System For Chronic In Vivo Electromyography
Published on: April 21, 2020
10.8K
Snare devices with thinner loop wire may provide higher performance for cold snare polypectomy in an experimental
Satoshi Ono1,2, Kyohei Maejima1, Shun Ito1
1Department of Gastroenterology, Chiba-nishi General Hospital, Chiba, Japan.
Endoscopy International Open
|May 16, 2022
Summary
Thinner loop wire diameter in snare devices correlates with improved cutting performance for intestinal polyps. This experimental study provides objective measurements for snare device characteristics, aiding in device selection for polypectomy.
Area of Science:
- Gastroenterology
- Medical Device Engineering
Background:
- Snare devices are crucial for intestinal polyp treatment.
- Objective measurements for snare device characteristics are lacking.
Purpose of the Study:
- To objectively evaluate characteristics of various snare devices.
- To investigate correlations between snare properties and cutting performance.
Main Methods:
- Evaluated seven snare devices based on stiffness, cutting quality, and force-dependent cutting.
- Used 20% gelatin cylinders to simulate polyps for force and cutting sharpness measurements.
- Analyzed correlations between loop wire diameter, stiffness, sheath shape, and cutting force.
Main Results:
- Strong positive correlation found between loop wire diameter and cutting force (R²=0.863).
- Loop wire diameter strongly correlated with force changes based on sheath shape (R²=0.7997).
- No correlation detected between loop stiffness and snare device characteristics.
Conclusions:
- Thinner loop wire may enhance performance in cold snare polypectomy.
- Objective measurements can guide snare device selection for improved polypectomy outcomes.
