Years Experience Design

Na Zhang

E-mail: ******@*****.***

*** ****** ***

Phone: 408-***-**** Sunnyvale, CA 94087

PROFILE

. 7 years experience with Finite Element Analysis (FEA), focusing on

medical device design, mechanical system analysis, frequency response,

multi-physics, Thermal analysis, and numerical techniques. Proficient

with ABAQUS, HYPERWORKS, LS-DYNA, ANSYS, MSC.MARC, COSMOS.

. 5 years experience with mechanical experiments, test procedure

development and test results statistical analysis.

. 3 years experience with computer programming, skilled at C++, FORTRAN,

Python, APDL and TCL/TK, experienced with analysis tools such as

Matlab and MathCAD.

. Experience with mechanical design tools - Solidworks and AutoCAD.

. Strong project management background - managing teams of testing,

material and design engineers for successfully FDA submission.

PROFESSIONAL EXPERIENCE

2004 - Present, Senior Engineer, Boston Scientific Corporation, Maple

Grove, MN and Fremont, CA

. FEA related projects

. Stent design: Modeling methodology development, model validation,

concept design for the next generation stent, design optimization,

failure root cause analysis, fatigue analysis, FDA submission. Stents

developed include Nitinol stent, stainless-steel stent, bifurcation

stent, biodegradable stent, braided stent, polymer stent, etc.

. Catheter design: DOE of cutting patterns for high torque catheter,

electronic coax catheter design, etc.

. Coil design: Designed and optimized aneurysm coil, etc.

. Heart valve: Designed Nitinol leaflet pattern to ensure anisotropic

property of the heart valve.

. Stent processing: Shape forming, Nitinol surface polishing, etc.

. Test method development: Designed fatigue test method to simulate in-vivo

conditions and evaluate Nitinol Fatigue criteria, developed methodology to

evaluate friction between stent and vessel, etc.

. New Material research: characterized stress/strain response and fatigue

life for Nitinol and new stent alloys under tension and compression using

testing and numerical method.

. Tissue Mechanics: Studied the effect of medical devices on arterial and

biological system.

. Primary author on US patent "Bi-stable Bifurcated Stent Petal Geometry",

Designed new petal geometry with high radial stiffness but low opening

force.

. Program development: developed nonlinear algorithms in C++ and FORTRAN

for in house nonlinear structural analysis. Created ANSYS ABAQUS, and

MSC.MARC post - processing automation script. Developed algorithms in

MATLAB for data analysis.

. Project management: FDA submission management, Technology development

outsourcing, etc.

. Awarded received: Boston Scientific innovation award for developing FEA

tools to enable virtual design of biomedical devices.

2003-2004, research assistant, North Dakota State University, Fargo, ND

. Developed a multi-layer arterial material model with damage to simulate

large vessel deformation during the coronary angioplasty procedure.

Performed structural and fatigue analysis of stents using Finite Element

Analysis.

EDUCATION

. M.S., 2006, Civil Engineering with structural design and biomedical

application emphasis, GPA: 4.0.

North Dakota State University, Fargo, ND

. B.S., 2003, Civil Engineering with underground structural design

emphasis, GPA, 3.4

PLA University of Science and Technology, Nanjing, China

PROFESSIONAL TRAINING

. Metal Fatigue

. Fracture Mechanics Approach to Life Prediction

. Nitinol Design and Processing

References available upon request

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