https://www.andyzhang.co/portfolio daily 0.75 2021-02-02 https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506585226481-YH5U33BL04H5KWUZQRP3/Drawing2.png portfolio Figure 2. Drawing of bag interface https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506585570251-JW1PHLHHVS5EC6UF7660/Drawing1.png portfolio Figure 1. Drawing of the main components https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1536361574189-1A33246OVTW6MC82M91Y/OstomatePoster portfolio https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506662313539-3U2BC6JTYGMX39I2OYH5/PlayDohModel.png portfolio Figure 3. Initial low-fidelity prototype https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506585271377-CI09RAJXMWA9ANL2T3CD/3DModel2.png portfolio Figure 5. Front view of 3D model https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506585315414-73US3OLGYJWB3EYM97M7/3DPrintedModel1.png portfolio Figure 6. 3D printed ABS prototype https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506585247855-AJV5QNK2GYIOR93K7KCI/3DModel1.png portfolio Figure 4. Isometric view of 3D model https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506587818608-VEWNPF0F1F6HBUJ7JM2Y/FinalModelLabel2.png portfolio Figure 10. Feedback indicator mechanism of final prototype https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506585372254-5IFRESWJF598E490XYVK/MoldModel2.png portfolio Figure 8. Silicone molded prototype https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506665849345-8NCLHRTEMOH56XGLUH70/MoldModel1.png portfolio Figure 7. Silicone molded prototype https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506667511225-GE1ASH9X5RJTA5UMN6IO/FinalModel3.png portfolio Figure 9. Locking mechanism of 3D printed rubber prototype https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506587781369-J7EKLKUVB85QN8X3XQC9/FinalModelLabel1.png portfolio Figure 11. Feedback indicator mechanism and overall final prototype https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1503761264732-VN514YSHWAQYEP7QDFM9/ostomate.png portfolio https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506618798607-DE13CXRINV958FHLSMWM/Brainstorming1.png portfolio Figure 1. Brainstorm of key considerations in design of prototype https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506639781092-QJFE3GVW0T8E0MTZYSQG/PrototypePlanning.png portfolio Figure 4. Initial high-level flow diagram of the desired features of the VADventure mobile application https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1563334489122-573GRZJFGUNEA3P1CAHY/IMG_9948.jpg portfolio Figure 5. Screenshot of the prototype https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506618878510-IYX8CWFOD41AMUBH2WLD/Brainstorming2.png portfolio Figure 2. Brainstorm of problems and stakeholders affected https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1506635665422-V9WL1QZI3L8MML6JQKTE/PatientExperienceStoryboard.png portfolio Figure 3. Storyboard of patient and caregiver experience https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1503761703431-70UO8HPC9DHRWH4Z5O0T/vadventure.png portfolio https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1503761786426-WHEB0ZBTMH8I1WFM3GOW/numbrr1.png portfolio https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1536361465364-EZLPFOE1WATU1OJ547F5/ComfortablyNumbPoster portfolio https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1505710359322-WUJGENOBPASGXFGIX9Y5/hackascopeadapter.png portfolio Figure 2. CAD model of an adapter necessary to assemble all design elements involved in an endoscopic banding device https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1503763314960-D7LKGIT0SRHAEG2VH33U/hackascopeprofile.png portfolio Figure 4. The final prototype of the Hackascope, an endoscopic banding device for esophageal varices https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1505704252702-QD9SOL2IP4VOB8GOG8C6/HackascopeTeam.jpg portfolio Figure 5. The Hackascope team with their award for placing 1st at the Baylor College of Medicine Global Health Hackathon https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1503763283600-8WGUUE8V6CQVSVD73F29/hackascopeplan.png portfolio Figure 1. High-level drawing of various design elements involved in an endoscopic banding device https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1503763298721-6FQXF6FK88SMCL6UUJ78/hackascopeprogress.png portfolio Figure 3. Hackascope team reviewing part orders from a local electronics store https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1504970484924-Q5EBUY3WG4V8QGSTWJ5M/Screen+Shot+2017-09-09+at+10.12.25+AM.jpg portfolio https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1505703241970-OYSYRJJML180R0V5LZXF/bioreactor2.png portfolio Figure 1. Valve mounts to suture on aortic valve leaflets https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1536361520458-VWBM6AUDALV595RGA5IG/BMESPoster.png portfolio https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1505701063793-ZABN23U2BX1KCETRDNCE/Picture1.jpg portfolio https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1505703222362-NH8FWX3P0EP5AX0SIITJ/bioreactor3.png portfolio Figure 2. Culture chambers to hold valve mounts and facilitate flow https://images.squarespace-cdn.com/content/v1/597dfa9786e6c03d801ab555/1503762420285-W5IZ4RXVVMWD11I5ZWGN/Screen+Shot+2017-08-26+at+10.16.23+AM.png portfolio Figure 1. 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