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Updated: Jun 9, 2026

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Construction and Implantation of a Microinfusion System for Sustained Delivery of Neuroactive Agents.
Published on: March 17, 2008
[Development of the disposable cannula for endoscope]
Shujun Cao1, Aicheng Feng, Lu Zhou
1Shanghai Huadong Sanatorium, Wuxi, Jiangsu, 214065.
Summary
A new disposable silica gel cannula enhances proctosigmoidoscopy procedures. This user-friendly device offers improved comfort and low cost for endoscopic examinations.
Area of Science:
- Medical Devices
- Gastroenterology
- Materials Science
Context:
- Proctosigmoidoscopy requires specialized instrumentation for effective visualization and intervention.
- Existing endoscopic accessories may present limitations in terms of patient comfort, cost, or usability.
Purpose:
- To introduce a novel disposable double-channel cannula designed for use with rigid-tubing endoscopes during proctosigmoidoscopy.
- To highlight the key features and benefits of this new silica gel cannula.
Summary:
- The disposable cannula is constructed from silica gel, offering a biocompatible and flexible material.
- It features a double-channel design, facilitating simultaneous insufflation, irrigation, or instrument passage.
- Key characteristics include a small caliber, absence of toxic side effects, high patient comfort, and user-friendliness, alongside a low system cost.
Impact:
- This innovation aims to improve the safety, efficiency, and patient experience during proctosigmoidoscopy.
- The low system cost may increase accessibility to advanced endoscopic procedures.
