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A novel stone retrieval basket for more efficient lithotripsy procedures
1Department of Mechanical Engineering and Energy processes, Southern Illinois University, Carbondale, 62901, USA.
Journal of Medical Engineering & Technology
|December 17, 2008
Summary
This study introduces an improved stone retrieval device featuring a Nitinol cage and laser-resistant PTFE basket. This innovation aims to efficiently remove all stone fragments in a single procedure, enhancing lithotripsy effectiveness.
Area of Science:
- Biomedical Engineering
- Minimally Invasive Surgery
Background:
- Current methods for large stone removal are tedious and may require multiple procedures.
- Fragmented stones can reform if not entirely removed.
Purpose of the Study:
- To develop an improved stone retrieval device for efficient removal of large kidney and biliary tract stones.
- To enhance the effectiveness of lithotripsy procedures.
Main Methods:
- Development of a novel Nitinol wire cage design.
- Incorporation of a laser-resistant polytetrafluoroethylene (PTFE) mesh basket.
- Revision of the device handle to accommodate a laser fiber optic cable (3 Fr opening).
Main Results:
- The device successfully retains all stone fragments within the basket.
- Two distinct cage designs were developed and presented.
- The integrated design allows for single-session retrieval of all fragments.
Conclusions:
- The developed stone retrieval basket significantly improves the efficiency and effectiveness of lithotripsy.
- This device offers a more complete solution for large stone removal, reducing the need for repeat procedures.
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