Allen Chang
CTO at Ananya Health
Mission to expand access to care through innovation and development of transformative technologies.
Ananya Health
https://www.linkedin.com/company/ananya-health
Expanding access to healthcare with purposefully-designed, innovative technologies.
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CTO
NuVasive
https://www.linkedin.com/company/nuvasive
Developed solutions for robotic-assisted surgery and led development and proliferation of the Porous PEEK technology platform under the NuVasive flag after Vertera Spine was acquired in 2017.
San Diego, California, USA
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Sr. Project Engineer
Vertera Spine
https://www.linkedin.com/company/vertera-inc-
◊ Invented method for manufacturing load-bearing porous PEEK biomaterial
◊ Developed and cleared the first porous all-PEEK COHERE® Cervical Interbody Fusion Device through the USFDA
◊ Lead development and regulatory clearance of COALESCE™ Lumbar Interbody Fusion System featuring porous PEEK through the USFDA
◊ Lead COALESCE™ project from initial ideation, through design control and manufacturing transfer, into commercialization - including, but not limited to, surgeon team interaction, prototyping, V/V testing & reporting, 510(k) writing & submission, manufacturing transfer, and consultant/supplier management
Atlanta, GA
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Project Leader, Co-Founder
MedShape, Inc.
https://www.linkedin.com/company/medshape-inc-
◊ Developed processing method for porous PEEK for use in orthopedic applications
◊ Generated project initiation documentation, quality documentation, engineering drawings; performed design verification and validation testing; and prepared 510(k) application for new product
◊ Additional projects include: spinal fusion cages, rotator cuff patch, ankle (talus) spacer, and refining surgical instrumentation
Atlanta, GA
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Technology Associate
Corporation for National and Community Service
◊ Served in the Southern Region of the United States in areas of disaster response, infrastructure improvement, environmental stewardship, energy conservation, and urban and rural development.
◊ Rehabilitated historic homes that were affected by Hurricane Katrina in New Orleans, LA, which included lead paint remediation, painting 2 houses, and building 400 ft of fences.
◊ Created biodiesel from used vegetable oil collected from local restaurants and assisted in upscaling the production capacity from 90 gallons per day to 500 gallons per day.
◊ Led 100 volunteers in building 14 homes with Habitat for Humanity Waveland in Bay St. Louis, MS including siding 2 houses, roofing 4 duplexes, laying out 3 duplex floor plans, painting 5 houses, and other tasks.
◊ Led 50 volunteers in rehabilitating homes with the St. Bernard Project in St. Bernard Parish, LA including mold remediation, installing insulation, drywall, painting, and flooring.
Vicksburg, MS and Southern Region of United States
AmeriCorps NCCC Corps Member
National Museum for Marine Biology and Aquarium
◊ Part of the Taiwan Tech Trek program hosted by the National Science Council of Taiwan.
Worked in the coral research lab to study the environmental effect and the purpose of coral fluorescence.
Pingtung, Taiwan
Intern
Center for Assistive Technology and Environmental Access
◊ Performed experimental analyses on wheelchair cushions in a study to prevent pressure sores following ANSI and ISO Standards
◊ Collected data for pressure mapping of hospice mattress and wheelchair cushions
◊ Constructed models, equipment, and settings for experimental trials
Atlanta, GA
Undergraduate Research Assistant
Bachelor of Science (B.S.)
◊ Included coursework in biosolid mechanics, medical image processing, biotransport, physiology, circuits & electronics, and problems in Biomedical engineering.  
◊ Recipient of HOPE & Donaldson Scholarship for academic excellence, leadership, and potential to succeed
◊ Worked in a team of 4 for capstone project to invent and design a medical device to improve convenience and ease of inserting a intravenous hypodermic needle
Biomedical Engineering
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Georgia Institute of Technology
https://www.linkedin.com/school/georgia-institute-of-technology/
Master of Engineering
◊  Included coursework in mechanics of biomaterials, tissue & biomaterial engineering, polymers & soft materials, molecular biotechnology, product management, and manufacturing strategies.   Recipient of Segal Education Award
◊ Worked in a team of 3 to identify a current need to reduce the number of cases of lower back problems in nurses and successfully invent, design, and build a prototype that assists in flipping patients to prevent bedsores
Biomedical Engineering
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Boston University
https://www.linkedin.com/school/boston-university/
Despite its widespread clinical use in load-bearing orthopedic implants, polyether-ether-ketone (PEEK) is often associated with poor osseointegration. In this study, a surface-porous PEEK material (PEEK-SP) was created using a melt extrusion technique. The porous layer was 399.6±63.3μm thick and possessed a mean pore size of 279.9±31.6μm, strut spacing of 186.8±55.5μm, porosity of 67.3±3.1% and interconnectivity of 99.9±0.1%. Monotonic tensile tests showed that PEEK-SP preserved 73.9% of the strength (71.06±2.17MPa) and 73.4% of the elastic modulus (2.45±0.31GPa) of as-received, injection-molded PEEK. PEEK-SP further demonstrated a fatigue strength of 60.0MPa at one million cycles, preserving 73.4% of the fatigue resistance of injection-molded PEEK. Interfacial shear testing showed the pore layer shear strength to be 23.96±2.26MPa. An osseointegration model in the rat revealed substantial bone formation within the pore layer at 6 and 12weeks via microcomputed tomography and histological evaluation. Ingrown bone was more closely apposed to the pore wall and fibrous tissue growth was reduced in PEEK-SP when compared to non-porous PEEK controls. These results indicate that PEEK-SP could provide improved osseointegration while maintaining the structural integrity necessary for load-bearing orthopedic applications.
High-strength, surface-porous polyether-ether-ketone for load-bearing orthopedic implants
Acta Biomaterialia
http://www.ncbi.nlm.nih.gov/pubmed/25463499
https://www.linkedin.com/in/chad-loftis-76300275
Carlsbad, CA
Chad Loftis
Development Engineering Manager at Alphatec Spine
https://www.linkedin.com/in/anuparvatiyar
San Francisco, CA
Anu Parvatiyar
Expanding health access through medtech | Cofounder & CEO, Ananya Health (YC S21)
https://www.linkedin.com/in/chris-besaw-61ab2530
San Diego County, CA
Chris Besaw
Senior Engineering Manager at NuVasive
https://www.linkedin.com/in/scott-uyekawa-158164156
San Diego, CA
Scott Uyekawa
Sr. Development Engineer at NuVasive
https://www.linkedin.com/in/kelli-lynch
San Diego, CA
Kelli Lynch (She/Her)
Senior Development Engineer at NuVasive
https://www.linkedin.com/in/garrett-gleeson-4a5a609
Carlsbad, CA
Garrett Gleeson
Engineering Manager at NuVasive
https://www.linkedin.com/in/kylie-baichly-6b4906179
Dayton Metropolitan Area
Kylie Baichly
Post Production Technician, Sterile Pack at NuVasive
https://www.linkedin.com/in/chris-lee-20995922
Atlanta, GA
Chris Lee
Chairman & CEO, Co-founder at Huxley
https://www.linkedin.com/in/matthew-reed-b85a454
Enon, OH
Matthew Reed
Staff Engineer, Manufacturing at NuVasive
https://www.linkedin.com/in/christinerollins
Springfield, OH
Christine Rollins
Associate Manager, Sterile Pack at NuVasive
https://www.linkedin.com/in/oliver-weaver-419a56196
Columbus, OH
Oliver Weaver
Associate Neurophysiologist at NuVasive
https://www.linkedin.com/in/trinamiddlebrook
San Diego, CA
Trina Serrano
Director, Direct Procurement & Strategic Sourcing at NuVasive
https://www.linkedin.com/in/julie-yip
San Francisco Bay Area
Julie Yip
Co-Founder & Engineer at Ananya Health
https://www.linkedin.com/in/brad-anderson-9590552b
San Diego, CA
Brad Anderson
GROWTH-ORIENTED LEADER
https://www.linkedin.com/in/danielle-richterkessing-6998b910b
Carlsbad, CA
Danielle Richterkessing
Director, Global Product Development at NuVasive
https://www.linkedin.com/in/hannah-markiewicz-670b08101
San Diego, CA
Hannah Markiewicz
Senior Technical Recruiter @ Cruise
https://www.linkedin.com/in/idicula-m-3723b783
United States
Idicula M.
CEO & Co-Founder
https://www.linkedin.com/in/marlon-albertorio-pe-mem-cssgb-b2635256
Trumbull, CT
Marlon Albertorio - PE, MEM, CSSGB
Sr. Mechanical Engineer (Tech Transfer)
https://tw.linkedin.com/in/allen-chang-a0797b55
Taipei City
Allen Chang
Medical Affairs Manager, Asia Area, AstraZeneca
https://www.linkedin.com/in/allen-chang-80158b12
La Puente, CA
Allen Chang
MARKETING DIRECTOR at ADSENS TECHNOLOGY INC.
https://tw.linkedin.com/in/allen-chang-33361725
Taiwan
Allen Chang
CTS Business Line Manager at Atlas Copco Taiwan
https://tw.linkedin.com/in/allen-chang-76ab6245
Taiwan
Allen Chang
Program Manager at Ampere
https://tw.linkedin.com/in/allen-chang-a66235b1
Taiwan
Allen Chang
佳能國際股份有限公司 總經理
Georgia Tech College of Engineering Alumni
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Georgia Tech Alumni Association
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Georgia Tech Alumni Network Boston & Greater Boston
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Boston University College of Engineering Networking Group for Students, Alumni & Employers
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