| A novel stone retrieval basket for more efficient lithotripsy procedures. | |
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MedLine Citation:
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PMID: 19085204 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This paper presents the development of an improved stone retrieval device that uses a newly designed cage of Nitinol wires encompassing a mesh basket made of a material that is laser resistant. Current methods to extract large stones involve imaging, using a laser to fragment the stones and then using existing cage-like baskets to trap the fragments individually and extracting them one at a time. These procedures are tedious, and may result in leaving some fragments behind that can reform causing the need for another procedure. The device presented in this paper will have a mesh-like sack which will consist of a laser resistant material of polytetrafluoroethylene (PTFE) enclosed within a newly designed Nitinol cage. Two alternate designs are provided for the cage in this paper. The handle of the device is revised to allow for a 3 Fr (1 mm) opening such that a laser's fiber optic cable can enter the device. Using this device a laser can be used to fragment the stone, and all the fragments are retained in the basket in both the design options. The basket can then be retracted allowing for the retrieval of all the fragments in one shot. The stone retrieval basket presented in this paper will significantly improve the efficiency and effectiveness of lithotripsy procedures for removal of large kidney and biliary tract stones. |
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Authors:
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N Salimi; A Mahajan; J Don; B Schwartz |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of medical engineering & technology Volume: 33 ISSN: 1464-522X ISO Abbreviation: J Med Eng Technol Publication Date: 2009 |
Date Detail:
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Created Date: 2009-02-11 Completed Date: 2009-07-13 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7702125 Medline TA: J Med Eng Technol Country: England |
Other Details:
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Languages: eng Pagination: 142-50 Citation Subset: IM |
Affiliation:
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Department of Mechanical Engineering and Energy processes, Southern Illinois University, Carbondale, 62901, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Alloys Equipment Design Equipment Failure Analysis Gallstones / therapy* Humans Kidney Calculi / therapy* Lithotripsy, Laser / instrumentation* Polytetrafluoroethylene / chemistry |
| Chemical | |
Reg. No./Substance:
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0/Alloys; 52013-44-2/nitinol; 9002-84-0/Polytetrafluoroethylene |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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