Research On Schedule Management Of H Company’s Thrombectomy Stent R&D Project Based On Critical Chain Technology

Stroke is a major chronic disease that seriously endangers the health of Chinese people,and ranks first among the causes of death and disability in China.Mechanical thrombectomy using thrombectomy stent is one of the most effective treatment methods for acute ischemic stroke.However,the current market of thrombectomy stent is all imported products from abroad.and the field of domestic thrombectomy stent is still blank.H Company is committed to developing the first thrombectomy bracket in China through the R&D project of thrombectomy bracket.However,problems such as long project duration and project delay occurred in the early stage of the project.In this case,how to effectively control the progress of the project and ensure the final delivery of the project on schedule has become the focus of the current research on the progress management of the project.This paper takes the R&D project of H company’s thrombectomy stent as an example,expounds the current situation of the R&D project of H company’s thrombectomy stent,analyzes the characteristics of the R&D project of thrombectomy stent,and combs the problems existing in the early progress management of the R&D project of thrombectomy stent,mainly focusing on the unreasonable schedule of the original project and the lack of project schedule management control.In order to solve the problems faced by the research and development project of the thrombectomy stent in the early implementation process.the critical chain technology is proposed to optimize the project schedule management.The optimization of schedule management mainly includes the formulation of project schedule,the implementation of optimization scheme and the test of implementation effect of optimization scheme.The main work content of the progress management optimization of the bolt support R&D project consists of two parts:project schedule planning and buffer setting and calculation.In the development of the progress plan of the bolt support R&D project,the WBS decomposition of the project content is first carried out.and the project schedule is made,and then the resource conflict problem is solved to determine the critical chain of the project.On the issue of buffer setting and calculation,based on the root variance method,the activity complexity,activity risk elasticity coefficient and activity impact factor are introduced to comprehensively consider and calculate the buffer time of each link.In the implementation of the optimization scheme,the optimized thrombectomy stent R&D project schedule is controlled from the technical point of view-buffer monitoring,formulating the corresponding process system,internal and external communication management system construction and implementation of reward and punishment system.Finally,the implementation effect of the schedule optimization scheme of the bolt support R&D project is tested.After using the critical chain technology,the actual completion time of the project is 452 days,which is 12 days shorter than the CPM/PERT plan in the early stage of the project.Within the time required by the board of directors,the project was delivered on schedule in advance.Therefore,it is confirmed that the critical chain technology can solve the problems existing in the early progress management of the thrombectomy stent R&D project,and finally make the project completed on schedule.At the same time,the research results of this paper can also provide reference for the progress management of other similar three types of medical device R&D projects.