Reconstruction and analysis of K-Clip surgery process based on finite element method
- VernacularTitle:基于有限元方法的K-Clip手术过程再现及分析
- Author:
Hao SHI
1
;
Wenbin OUYANG
1
;
Shiguo LI
1
;
Qi LI
1
;
Fengwen ZHANG
1
;
Yao LIU
1
;
Wenxin LU
1
;
Chang LIU
2
;
Shaojie ZHANG
2
;
Xiangbin PAN
1
Author Information
1. Department of Structural Heart Disease, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences Peking Union Medical College, National Health Commission Key Laboratory of Cardiovascular Regeneration Medicine, Key Laboratory of Innovative Cardiovascular Devices, Chinese Academy of Medical Sciences, National Clinical Research Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, 100037, P. R. China
2. Shanghai Huihe Medical Technology Co., Ltd, Shanghai, 201612, P. R. China
- Publication Type:Journal Article
- Keywords:
Tricuspid regurgitation;
annulus repair;
K-Clip;
numerical simulation
- From:
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery
2024;31(01):44-50
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects of different types of tricuspid regurgitation, implantation positions, and device models on the treatment outcomes of K-Clip for tricuspid regurgitation using numerical simulations. Methods Three-dimensional reconstruction of the heart model was performed based on CT images. Two different regurgitation orifices were obtained by modifying the standard parameterized tricuspid valve leaflets and chordae tendineae. The effects of different K-Clip models at different implantation positions (posterior leaflet midpoint, anterior-posterior commissure, anterior leaflet midpoint, posterior septal commissure) were simulated using commercial explicit dynamics software Ls-Dyna. Conclusion For the two types of regurgitation in this study, clipping at the posterior leaflet midpoint resulted in a better reduction of the regurgitation orifice (up to 75% reduction in area). Higher clamping forces were required for implantation at the anterior leaflet midpoint and posterior septal commissure, which was unfavorable for the smooth closure of the clipping components. There was no statistical difference in the treatment outcomes between the 18T and 16T K-Clip components, and the 16T component required less clamping force. Therefore, the use of the 16T K-Clip component is recommended.
