BME 440 ePortfolios
BME 440: Biomedical Engineering Design: Introduction to product development from the perspective of solving biomedical, biotechnological, environmental, and ergonomic problems incorporating appropriate engineering standards and multiple realistic constraints. Teamwork in design, establishing customer needs, writing specifications, and legal and financial issues are covered in the context of design as a decision-based process. A semester-long team design project follows and provides the opportunity to apply concepts covered in class.
Portable Vertical Vibration Device: Our vertical vibration system will require both a function generator and an amplifier. A function generator is essentially how it sounds; it is a device or program that generates a function such as a sinusoidal waveform. An amplifier takes a signal and generally increases that signal for measurement or application purposes. For our device we will have a microcontroller, most likely an Arduino, that will either generate a sinusoidal signal or acquire that signal from a computer, with a user-defined frequency and amplitude. That signal will then travel to an amplifier, where it will be increased and sent to our motor via a motor controller. Only viewable within the Stony Brook Community.
LivMD Patient Compliance Device: LivMD* is a 19-pound, portable platform that creates low-intensity vibrations and can be used at home, in the office, or almost anywhere else. The device functions at an acceleration of 0.4g with a frequency of about 30Hz. At these levels, the platform's vibrations are capable of traveling through the body and affecting injured or ailing areas, without causing discomfort to the user. Because the system uses acceleration instead of force, there is no risk of further injury to the user. With just two five-minute sessions per day, patients can significantly reduce their pain. Only viewable within the Stony Brook Community.
Minimization of the Franz Diffusion Chamber: Our design for the Franz-diffusion chamber includes the base and the PDMS reservoirs. For the base, we’d create a plexiglass container with hollowed out sections for holding the glass slide diffusion chambers. Each chamber would have a spacer underneath the PDMS well, to allow for any leakage/overflow from the solutions being tested. This spacer would sequester extra/leaked solution and prevent potential contact between the upper well as well as prevent contamination between neighboring chambers. We would also be updating the current clamping mechanism: the clamps would be scrapped since they cause havoc and solution leakage by clamping unevenly. A container lid would be implemented to allow for controlled, uniform application of pressure across all chambers. Only viewable within the Stony Brook Community.
Lab-on-a-chip: The World Health Organization is non-profit and is attempting to contain a disease that affects nearly 2 billion people. The product must be effective in identifying tuberculosis and extremely sensitive to the bacteria. False negatives must be extremely unlikely. False positives would be handled by the full diagnosis that is to follow screening, but should still be minimized. The cost of running a test must be low in order to allow mass screening multiple times. The time required before returning a result should also be minimized in order to allow reasonable containment and increase patient compliance.
Pressure Gauge Glove: Based on faults in current technology, we are proposing to develop a device to improve efficiency and accuracy in therapeutic evaluations and exercises. In order to address these issues, we plan to develop a clinical device that is time-efficient and economic. This will improve the assessments of hand and finger strength and exercises. Only viewable within the Stony Brook Community.
Well Plate Cone Shearing Device "An affordable method to control as many shear generating cones as possible using a single motor within the space constraints of a standard 12 well plate." Only viewable within the Stony Brook University Community