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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 소화기인터벤션의학회 International Journal of Gastrointestinal Intervention International Journal of Gastrointestinal Intervention 제9권 제3호
- 발행연도
- 2020.1
- 수록면
- 99 - 105 (7page)
이용수
초록· 키워드
오류제보하기
Background: To investigate the expansion force of current colonic stents and to match these to industry standards. Methods: Samples of all colonic stents were requested from manufactures world-wide. Expansion forces were tested with an RX650 compression tool (MSI, Flagstaff, AZ, USA). Measurements were averaged over three cycles of compression and expansion, independently performed at 37°C by specialist engineers of MSI. In parallel, a survey was undertaken on standards, and tests used by manufacturers in their production process. As a labbased study, Institutional Review Board approval was not required. Results: A literature search did not identify any industry standards for testing expansion force or a suggested range for this primary stent function. Median expansion force of all stents was 24.4 N, (35.1 N for braided, 20.7 N for knitted stents) with a vast range from 5.6?130.8 N. Covering braided stents in liquid silicone increased their median force 5.5-fold, separate membranes attached to knitted stents only had a minor effect on expansion force. Five of eight manufacturers replied, describing three different test methods with three different units for expansion force. Conclusion: There are no standards on assessing expansion force, or what the ideal range should be. Consequently, the variation is remarkable, but values are not published, and even if they were, they could not be compared. Consequently, interventionists are unable to discriminate between different stents and to select the most suitable device for their patients, and no recommendation can be made on the ‘best stent’. The industry needs an agreed test standard and an acceptable range of stent forces.
목차
등록된 정보가 없습니다.
참고문헌 (28)
참고문헌 신청
Kim CG / 2013 / Selfexpandable stents in the gastrointestinal tract / Springer :103~120
Duda SH / 2000 / Physical properties of endovascular stents : an experimental comparison / J Vasc Interv Radiol 11:645~654
Takahata K / 2004 / A planar approach for manufacturing cardiac stents : design, fabrication, and mechanical evaluation / J Microelectromech Syst 13:933~939
Okamoto Y / 2009 / In-vitro evaluation method to measure the radial force of various stents / 13th International Conference on Biomedical Engineering :1053~1056
Johnston CR / 2010 / The mechanical properties of endovascular stents : an in vitro assessment / Cardiovasc Eng 10:128~135
Duda SH / 2000 / Physical properties of endovascular stents : an experimental comparison / J Vasc Interv Radiol 11:645~654
Takahata K / 2004 / A planar approach for manufacturing cardiac stents : design, fabrication, and mechanical evaluation / J Microelectromech Syst 13:933~939
Okamoto Y / 2009 / In-vitro evaluation method to measure the radial force of various stents / 13th International Conference on Biomedical Engineering :1053~1056
Johnston CR / 2010 / The mechanical properties of endovascular stents : an in vitro assessment / Cardiovasc Eng 10:128~135
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