2008 Capstone teams

Emergency Medicine

Project & Title:  Project Airway

Team Members:  P Singh, S Geissler, S Wang, and R Johnson

Capstone Client:  James Hardy, M.D., UCSF Emergency Medicine Specialist

Purpose/Goal:
Cricothyroidotomy is an emergency surgical procedure in which a hole is made through the membrane of the patient’s neck into the windpipe to allow air into the lungs. The current cricothyroidotomy Seldinger technique involves inserting a catheter into a blood vessel or space in the patient’s neck. The team focused on designing a new cricothyroidotomy device that reduces the time required to perform the procedure and minimizes the trauma caused on the patient.

2008 emergency medicine prototype

Photograph of prototype that was successful and demonstrated a speed three times faster than the Seldinger method.


Orthopaedic Surgery

Project & Title:  Cartilage Bioreactor

Team Members:  Matthew Johnson, Elena Liang, Aron Lau

Capstone Client:  Alfred Kuo, MD, Orthopaedic Surgery, UCSF

Purpose/Goal:
More than 40 million Americans (~15% of the overall U.S. population) suffer from arthritis. Human cartilage has limited to no ability to heal itself when it is badly damaged. The capstone team set out to design a bioreactor for chondrocytes (cartilage cells) that replicates some of the conditions experienced by cells in human joints in order to create better, stronger tissues for research and therapeutic use. The design will incorporate methods for controlling hydrostatic pressure

2008 orthopaedic prototype

Photograph of prototype: A cyclic force is exerted on rod inserted into a thin chamber, compressing the fluid inside and applying pressure to the entire closed system. Programmable, computer-controlled piston setup.


Pediatric Device

Project & Title:  Foreign Body Retrieval Basket

Team Members:  Alisa Dong, Atul Urs, Eric Phoumthipphavong

Capstone Client:  Dennis Nielson, MD, UCSF Pediatrics

Purpose/Goal:
Current biomedical foreign body retrieval devices often fail after pediatric airway insertion, rendering retrieval and other specifications worthless. The team aimed to develop a foreign body retrieval basket that exhibited the following qualities:
– Deployment of basket
– Capture of all types of foreign body
– Retention of foreign body long enough for expulsion

2008 pediatric device prototype


Pediatric Medicine

Project & Title:  Cerumen Removal

Team Members:  Ye Qiu, Atul Saxena & Eric Stone

Capstone Client:  Wilbur Lam, MD, PhD, Pediatric Hematology-Oncology, UCSF

Purpose/Goal:
The cerumen removal process can be completed by a pediatrician/family doctor for an ear infection for pediatric patients. The team set out to design a device that would allow for an accurate diagnosis of an ear infection with minimal infliction of harm because current methods are unsatisfactory.

2008 pediatric medicine prototype


Pediatric Medicine

Project & Title:  Newborn Dehydration

Team Members:  Chian Gong, Merline Hidayat, Robert Lamorena

Capstone Client:  Carol Miller, MD Clinical Professor, Pediatrics, UCSF

Purpose/Goal:
Early diagnosis of dehydration in newborns is difficult., as most methods are applicable to larger body weight individuals. Existing dehydration detectors utilize bioelectrical impedance, ultrasound, or PEAPOD to determine dehydration. The team aimed to create a new device that satisfies the following needs.
– Allows natural breastfeeding patter
– Portability – Painless -Affordability
– Reliability of results

2008 pediatric prototype

Photograph of prototype. The breath capture bulb model especially excelled in affordability and availability of sample.


Reproductive Sciences

Project & Title:  Measure Beat Rate of Cardiac Myocytes in Cell Culture

Team Members:  Dana Donnenwirth, Dean Nehama, Dan Rosen

Capstone Client:  Wito Richter, Associate Researcher UCSF Department of Gynecology, Obstetrics, and Reproductive Sciences

Purpose/Goal:
Measuring the beat rate of cardiac myocytes in response to various external agents will allow quantitation of the myocyte response to stimuli. Existing measuring methods require excessive time-consuming analysis. The team’s goal was to design an accessible, affordable and timely method for measuring the real-time beat rate of cultured cardiac myocytes.

2008 reproductive prototype

Photograph of device: Processing software ImageJ proved to be the most promising