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[A design and application method of the thoracic puncture cannula]
Xuanyan Liu1, Menglan Yin2, Jie Huang3
1Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China.
Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
|February 8, 2022
Summary
A new disposable thoracic puncture cannula was developed to improve safety during thoracentesis procedures. This device limits needle penetration, reducing the risk of complications and organ damage.
Area of Science:
- Medical Devices
- Surgical Procedures
- Thoracic Surgery
Background:
- Thoracentesis is a common medical procedure with potential complications.
- Risks include re-expansion pulmonary edema, hypotension, organ injury, and pneumothorax.
- Improper technique can lead to thoracic organ damage.
Purpose of the Study:
- To develop an improved disposable thoracic puncture cannula.
- To enhance safety and reduce complications associated with thoracentesis.
- To create a device that limits puncture depth and prevents excessive force.
Main Methods:
- Modification of a standard thoracic puncture cannula.
- Incorporation of a flexible puncture cannula, steel needle, limit structure, and bolt.
- Development of a novel disposable thoracic puncture cannula device.
- Obtained a National Utility Model Patent of China (patent number: ZL 2019 2 2112955.7).
Main Results:
- The new cannula features a limit structure to control puncture depth.
- This structure prevents further needle penetration if excessive force is applied.
- The device is designed for ease of use, flexibility, and mastery.
- Clinical application demonstrates a reduced risk of thoracentesis complications.
Conclusions:
- The improved disposable thoracic puncture cannula enhances procedural safety.
- The device effectively mitigates risks of organ damage and other complications.
- Its ease of use and safety profile support widespread clinical adoption.

