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Biomedical Engineering and Bioengineering Commons

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Theses/Dissertations

California Polytechnic State University, San Luis Obispo

Mechanical Engineering

Articles 1 - 25 of 25

Full-Text Articles in Biomedical Engineering and Bioengineering

Surf Leg, Samantha Campbell, Oyundari Altansukh, Caroline Swanson, Kurtis Barth Jan 2019

Surf Leg, Samantha Campbell, Oyundari Altansukh, Caroline Swanson, Kurtis Barth

Mechanical Engineering

The Surf Leg Prosthetic project team in conjunction with QL+ and Operation Surf designed a transtibial prosthetic to be used for surfing. The senior project team focused on the missions of QL+ and Operation Surf as they went through the design process during the 2018-2019 academic year. The problem solved was that a standard prosthetic for a transtibial amputee does not provide the flexibility in enough degrees of freedom for a user to squat and balance on a surfboard. The goal of this project was to create a device specifically designed to improve the user’s balance and control while ...


Identification System For Heart Valve Manufacturing, Nicholas Robert Jensen, Edgar Davis Nix, Judith Evelyn Gonzalez, Albert Austin Liddicoat Jun 2018

Identification System For Heart Valve Manufacturing, Nicholas Robert Jensen, Edgar Davis Nix, Judith Evelyn Gonzalez, Albert Austin Liddicoat

Mechanical Engineering

Abstract withheld due to NDA constraints


Foot Stress And Blood Flow Sensing Under High-Loading During Hip Surgery, Chris Cardenas, Esther Chen, Claire Kingston, Katie Paswaters, Brianna Rodebaugh Jun 2018

Foot Stress And Blood Flow Sensing Under High-Loading During Hip Surgery, Chris Cardenas, Esther Chen, Claire Kingston, Katie Paswaters, Brianna Rodebaugh

Mechanical Engineering

The PolyHIPS team was tasked with integrating sensors into Stryker’s hip arthroscopy boot that monitor blood flow and heel slip during hip surgery. During hip arthroscopy, the femur head is distracted from the acetabulum to create space in the joint for the surgeon to operate. This requires the use of up to 200 lbf. In order to maintain this space, the foot is held tightly in the boot. Complications can result from the foot being held too tightly in the boot during the procedure. The most common complication is neuropraxia, or temporary nerve damage. PolyHIPS proposes a solution that ...


Transcatheter Heart Valve Leaflet Assembly Tooling Improvement Final Design Report, James Craig Sherman, Zachary Robert Dicks, Luke Edward Williams Jun 2018

Transcatheter Heart Valve Leaflet Assembly Tooling Improvement Final Design Report, James Craig Sherman, Zachary Robert Dicks, Luke Edward Williams

Mechanical Engineering

Statement of Confidentiality: The complete senior project report was submitted to the project advisor and sponsor. The results of this project are of a confidential nature and will not be published at this time.


Multi-Purpose Heart Valve Therapy Assembly Fixture, Alec John Foster, John Patrick Hofstetter, Emily Lim Jun 2018

Multi-Purpose Heart Valve Therapy Assembly Fixture, Alec John Foster, John Patrick Hofstetter, Emily Lim

Mechanical Engineering

STATEMENT OF CONFIDENTIALITY: The complete senior project report was submitted to the project advisor and sponsors. The results of this project are of a confidential nature and will not be published at this time.


Annuloplasty Mti: Improved Tooling For Annuloplasty Ring Manufacturing, Justin David Smith, Spencer Lee Combs, Luke Edward Maly Jun 2018

Annuloplasty Mti: Improved Tooling For Annuloplasty Ring Manufacturing, Justin David Smith, Spencer Lee Combs, Luke Edward Maly

Mechanical Engineering

The complete senior project report was submitted to the project advisor and sponsor. The results of this project are of a confidential nature and will not be published at this time.


Dynamic Model For Simulating Motion Of The Right Ventricle, Brian Michael Larsen, Sam Koopman Porter, John Francis D'Ambrosio Jun 2018

Dynamic Model For Simulating Motion Of The Right Ventricle, Brian Michael Larsen, Sam Koopman Porter, John Francis D'Ambrosio

Mechanical Engineering

This report documents all the research, ideation, and mockups used to determine right ventricle motion and develop a system capable of reproducing that motion on a tissue sample. The model is intended for evaluating anchoring systems being developed by Edwards Lifesciences for use with tricuspid valve therapies. Several design solutions were considered for the primary functions of recreating motion of the right ventricle and attaching tissue to the device. From these ideas a primary means of producing motion and attaching tissue was selected. These ideas were then developed over the course of a school year to become the final system ...


Usa Boccia Ball Ramp For Athletes With Quadriplegia, Alissa A. Koukourikos, Matthew Lee, Nathan Bernards Dec 2017

Usa Boccia Ball Ramp For Athletes With Quadriplegia, Alissa A. Koukourikos, Matthew Lee, Nathan Bernards

Mechanical Engineering

In this report, the design process in creating an assistive device for Boccia Classification 3 (BC3) players is outlined. The initial research steps, including research into the rules of the game, capabilities of the players, and existing products is documented to show where ideas for the product stemmed from. This transitions into requirements that the sponsor requested, and preliminary designs and ideas for the product. Finally, this report explains the details of the final design, which has been analyzed for safety, ease of use, and ability to function under different conditions. The processes of manufacturing and testing will also be ...


Final Design Report: Polymer Fatigue Characterization Test Method, Wyatt Ayling, Tyler Price, Brandon Stell, Michela Upson Dec 2016

Final Design Report: Polymer Fatigue Characterization Test Method, Wyatt Ayling, Tyler Price, Brandon Stell, Michela Upson

Mechanical Engineering

Polylogix is a team dedicated to the design, build, and testing of a fatigue machine to simulate cyclic loading on a biomedical polymer. This project is sponsored by Endologix, Inc. to provide test data characterizing mechanical material properties of various formulations of polymer used in abdominal aortic aneurysm surgeries. With this project goal, the machine must be able to test the polymer at body conditions; these include a testing temperature of 37°C and a cycling frequency ranging from 1 Hz to 10 Hz. This report proposes the following solution to this design challenge: an AC motor-driven mechanism utilizing a ...


Prosthetic Socket Cooling System, Benjamin K. Kraw, Kathy Ha, Derek Piastrelli, Cuong Lai Jun 2016

Prosthetic Socket Cooling System, Benjamin K. Kraw, Kathy Ha, Derek Piastrelli, Cuong Lai

Mechanical Engineering

A team of four senior-level undergraduate students in the Interdisciplinary Senior Project Design course in the Engineering Department of California Polytechnic State University: San Luis Obispo have worked to develop a prosthetic socket cooling system, namely for veteran Taylor Morris and exclusively for a transfemoral prosthetic socket, under the Quality of Life+ Laboratory. This cooling system will utilize the thermoelectric effect known as the Peltier effect to transmit heat generated from the residual limb to the surrounding environment by means of forced convection over small aluminum heat sinks. Two measurement devices have also been developed to, one, measure the heat ...


Improvement Of Mounting Techniques For Accelerated Wear Testing Of Artificial Heart Valves, Kyle Koon, Clay Bougher, Lawrence Yang Jun 2016

Improvement Of Mounting Techniques For Accelerated Wear Testing Of Artificial Heart Valves, Kyle Koon, Clay Bougher, Lawrence Yang

Mechanical Engineering

Confidential


Modification Of Offset Hip Impactor, Anton Gebert, Michael Rumery, Mark Sidor Jun 2016

Modification Of Offset Hip Impactor, Anton Gebert, Michael Rumery, Mark Sidor

Mechanical Engineering

More than 300,000 total hip replacement surgeries are performed in the US each year. Minimally invasive total hip replacement surgery requires modified tools to access the smaller incision. An offset hip impactor was redesigned to improve tool lifetime, ease of use, and manufacturing cost. The redesigned tool had an increased lifetime and a significant reduction in the number of parts. The report contains detail drawings, a manufacturing plan, and physical testing results.


Renal Artery Stent Fatigue Test, Braden Cooper, Munir Eltal, Jennifer Hawthorne, Ashley Schaefer Jun 2015

Renal Artery Stent Fatigue Test, Braden Cooper, Munir Eltal, Jennifer Hawthorne, Ashley Schaefer

Mechanical Engineering

In today’s world of medical innovation, regulations and requirements set by organizations such as the Food and Drug Administration (FDA), the International Organization for Standardization (ISO), and ASTM International (American Society for Testing and Materials) can inhibit rapid innovation by demanding rigorous testing of new designs. For arterial stents, the standard is that each design must be tested to simulate 10 years of life in an environment congruent to an in vivo environment. Endologix in Irvine, California develops and manufactures minimally invasive treatments for aortic diseases, with a focus on stent grafts for the treatment of abdominal aortic aneurysms ...


Heart Valve Leaflet Deflection Testing Apparatus, Brandon Cunnane, Andrew Krasts, Jackson Kunz, Steven Warnert Jun 2015

Heart Valve Leaflet Deflection Testing Apparatus, Brandon Cunnane, Andrew Krasts, Jackson Kunz, Steven Warnert

Mechanical Engineering

The information contained in this report is confidential and proprietary information of Edwards Lifesciences.


Sapien3 Comb Stitch Improvement For Edwards Lifesciences, William Harley, Thomas Pluschkell, John Mctigue, Garrett Reed Jun 2015

Sapien3 Comb Stitch Improvement For Edwards Lifesciences, William Harley, Thomas Pluschkell, John Mctigue, Garrett Reed

Mechanical Engineering

The complete senior project report was submitted to the project advisor and sponsor. The results of this project are of a confidential nature and will not be published at this time.


Transcatheter Heart Valve Subassembly Device, Adam Aslam, Matthew Bezkrovny, Daniel Degree Jun 2015

Transcatheter Heart Valve Subassembly Device, Adam Aslam, Matthew Bezkrovny, Daniel Degree

Mechanical Engineering

No abstract provided.


2d Wireform Process Improvement, Katy Conlin, Carlo Ebora, Jordan Gamble Jun 2014

2d Wireform Process Improvement, Katy Conlin, Carlo Ebora, Jordan Gamble

Mechanical Engineering

The body of this work has been created for Edwards Lifesciences in conjunction with senior project requirements. As such, the information produced and contained within is under a non‐disclosure agreement. As per request by sponsor, the body of the work will not be submitted to any outside parties, and the title page will serve as proof of completion.


Beach Wheelchair Project, Rory Aronson, Joshua Marcum, Samuel Coyne, Alex Hayes, Alexa Colburn, Max Hessel, Benedikt Strauss, Marvin Rimmele, Marco Pietsch Jun 2013

Beach Wheelchair Project, Rory Aronson, Joshua Marcum, Samuel Coyne, Alex Hayes, Alexa Colburn, Max Hessel, Benedikt Strauss, Marvin Rimmele, Marco Pietsch

Mechanical Engineering

The Beach Wheelchair, Sandcrawler, is a machine intended to help give people with disabilities the full beach experience. The non-profit organization Bridge II Sports sponsored this project, and tasked us with developing the design and fabricating a prototype. This chair has several features including a linkage mechanism that raises and lowers a chair relative to an external frame, hand crank drive with Gates Carbondrive belt and sprockets, buoyant Wheeleez balloon tires, and much more.


Edwards Lifesciences - Skirt To Frame Attachment Manufacturing Aid, Samuel Joda, Cesar Grimaldo, Patrick Hutchinson Jun 2013

Edwards Lifesciences - Skirt To Frame Attachment Manufacturing Aid, Samuel Joda, Cesar Grimaldo, Patrick Hutchinson

Mechanical Engineering

No abstract provided.


Stent Graft Blush, Vanessa Barrett, Thomas Matzinger, Mike Morelli Jun 2013

Stent Graft Blush, Vanessa Barrett, Thomas Matzinger, Mike Morelli

Mechanical Engineering

In order to better understand Type IV endoleaks (“blush”), the Cal Poly Senior Project team GraftTest has developed a blush evaluation system able to mimic several of the aorta’s environmental parameters. Capable of both pressure and flow rate control, this bench top system accommodates Medtronic’s wide range of abdominal and thoracic aortic stent grafts. Having researched endoleaks, stent grafts, and numerous other factors affecting stent graft blush, a system was developed with the aim of assessing and comparing the performance of Medtronic’s stent grafts with regard to blush. Furthermore, this system has been designed to provide reliable ...


Handitrike - Recumbent Tricycle, Sean Higginson, Kevin Howie, Vinay Patel Dec 2012

Handitrike - Recumbent Tricycle, Sean Higginson, Kevin Howie, Vinay Patel

Mechanical Engineering

This report covers the design and construction of the recumbent racing tricycle for Mr. Robert T. Kelly, a disabled veteran. Unfortunately Rob’s right leg is five inches shorter than his left one and therefore is unable to properly operate standard cranks. Our team HandiTrike is composed of Sean Higginson, Kevin Howie, and Vinay Patel and our project requires us to come up with a design that is feasible to complete within the given three quarters, as well as allow Rob to gain full use of his tricycle. Currently Rob ‘s trike uses the standard crank set up found on ...


Polygrasp: Reach; Myoelectric Prosthetic Hand Iteration, Devon Patrick Augustus, Mighells Blaed Deuel, Ian Noel Fraser, Nicholas Philip Moesser Jun 2012

Polygrasp: Reach; Myoelectric Prosthetic Hand Iteration, Devon Patrick Augustus, Mighells Blaed Deuel, Ian Noel Fraser, Nicholas Philip Moesser

Mechanical Engineering

Amputations are a common occurrence in soldiers returning home who have suffered the effects of IED and munitions explosions. For upper limb amputees, trans-radial amputations are the most common. Traditional hook devices do not offer an adequate level of normalcy for users, prompting the use of myoelectric devices. While current myoelectric devices do offer a more natural experience, they come with a host of other problems that makes their adoption by service personnel not desirable or not permitted by the VA. PolyGrasp Reach seeks to reduce weight and cost and improve performance. This addresses several of the issues with devices ...


Quantifying Proximal Conformability Of A Thoracic Aortic Stent Graft, Dylan Reinsdorf, Kendall Smith Jun 2012

Quantifying Proximal Conformability Of A Thoracic Aortic Stent Graft, Dylan Reinsdorf, Kendall Smith

Mechanical Engineering

This report is documentation of a Senior Project completed by Dylan Reinsdorf and Kendall Smith, in partial fulfillment of a Bachelor of Science in Mechanical Engineering at Cal Poly, San Luis Obispo. Medtronic Inc. approached the team with a need to quantify proximal conformity of stent grafts in the thoracic aorta. A solution was designed that included an aorta model that simulates clinical conditions, and a measurement method for stent graft conformability. This report documents all phases of the project, from sponsor requirements to final design to product realization and testing.


Strider, George Cummings, Brian Kreidle, Ricky Lee, Clark Steen Dec 2011

Strider, George Cummings, Brian Kreidle, Ricky Lee, Clark Steen

Mechanical Engineering

No abstract provided.


Analysis Of 26" And 29" Wheel Mountain Bikes, Jacob Publicover, David Wang, Alex Warring Nov 2011

Analysis Of 26" And 29" Wheel Mountain Bikes, Jacob Publicover, David Wang, Alex Warring

Mechanical Engineering

There are two major mountain bike diameter wheel sizes on the market today, but with two different options, one would naturally wonder, “Which one is best?” During the course of this project, 26 and 29 inch wheel mountain bikes were analyzed quantitatively and qualitatively, using a variety of test methods, from heart rate monitoring to serial data acquisition to computer simulated analyses; static, dynamic, theoretical, and subjective tests were administered.