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Articles 1 - 20 of 20
Full-Text Articles in Engineering
Biomechanical Knee Joint For Exoskeleton, Gabriel Ireton Ahern, Calloway Miller, Christianna Altamura, Eric Mailes
Biomechanical Knee Joint For Exoskeleton, Gabriel Ireton Ahern, Calloway Miller, Christianna Altamura, Eric Mailes
Mechanical Engineering
Our senior design project consisted of designing and manufacturing a biomechanically accurate, actuated knee joint to be integrated into an exoskeleton being developed by the Lower Limb Exoskeleton Assist Project (LLEAP), a part of the EMPOWER student association at Cal Poly, San Luis Obispo. As the human knee flexes and extends throughout gait motion, the center of rotation changes. Currently marketed exoskeletons have one point of rotation, which over constrains the knee and causes misalignment between the user and the suit [1]. Our goal was to mimic natural knee joint motion by changing the center or rotation, thus reducing misalignment …
3-In-1 Medical Lancet, Jonathan J. Panella, Gage Vogtlin, Marissa Koski, Benjamin Neyland
3-In-1 Medical Lancet, Jonathan J. Panella, Gage Vogtlin, Marissa Koski, Benjamin Neyland
Mechanical Engineering
First responders need a quick, sterile, and convenient way to sample blood for glucose testing because glucose levels are a vital metric in assessing time-critical emergency situations. The blood sampling process consists of pre-sterilizing the sample site on the skin with an alcohol pad, pricking the skin with a lancet, and lastly, after sampling, putting a bandage over the prick site. The scope of this project is to design a device which integrates and streamlines the use of the three sub-processes (sterilization, lancing, and bandaging) while upholding the necessary requirements of a single-use medical device and considering other factors which …
Surf Sled, Marius Jatulis, Arthur Zaayer, Griffin O'Malley, Jose Covarrubias
Surf Sled, Marius Jatulis, Arthur Zaayer, Griffin O'Malley, Jose Covarrubias
Mechanical Engineering
This Final Design Review document outlines the process by which we designed and built a surfboard sled, nicknamed the “Beachin’ Buggy”, for the AmpSurf program. The document describes the goals and services that AmpSurf provides for those living with disabilities, and the current methods that volunteers use to transport people from to beach to the water and onto a surfboard. It then identifies the need for a new system for beach-to-water transportation, along with all specifications, constraints, and goals for the system. Background research will be introduced to relate similar products to this project, and their relevant features and parameters …
Prosthetic Foot Shell, Ql+, Kathryn Victoria Versteeg, Jackson A. Tucker, Ethan William Frey
Prosthetic Foot Shell, Ql+, Kathryn Victoria Versteeg, Jackson A. Tucker, Ethan William Frey
Mechanical Engineering
This final design review includes an overview of our project and the steps we have taken to create our final product. We discuss the background research conducted, including various products like the foot shell we are trying to design and its related patents, along with similar past senior projects. As our product is considered a medical device, there are also certain standards that we must comply with. After determining our problem statement, we established what we believe to be the wants and needs of our user. These wants and needs were converted into specifications for our design, with durability as …
Wireless Ekg, James Kerman, Chin Chao, Galen Wu, Eric Burstedt
Wireless Ekg, James Kerman, Chin Chao, Galen Wu, Eric Burstedt
Mechanical Engineering
In 2016, Dr. Ahmad Nooristani identified a need for a personal EKG that is cheaper and simpler than hospital grade systems, but more accurate than personal devices currently on the market. Two previous teams did significant background research, prototyping, focusing on ease of use, portability, and physical specifications. However, neither team was able to produce a device with electrodes that could successfully collect an EKG signal and transmit it to a phone or tablet, one of the main requirements from the Dr. Nooristani. This team focused on designing a six lead, five electrode EKG device to transmit EKG data from …
Identification System For Heart Valve Manufacturing, Nicholas Robert Jensen, Edgar Davis Nix, Judith Evelyn Gonzalez, Albert Austin Liddicoat
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
Transcatheter Heart Valve Leaflet Assembly Tooling Improvement Final Design Report, James Craig Sherman, Zachary Robert Dicks, Luke Edward Williams
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.
Annuloplasty Mti: Improved Tooling For Annuloplasty Ring Manufacturing, Justin David Smith, Spencer Lee Combs, Luke Edward Maly
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
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 …
Final Design Report: Polymer Fatigue Characterization Test Method, Wyatt Ayling, Tyler Price, Brandon Stell, Michela Upson
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 planetary …
Modification Of Offset Hip Impactor, Anton Gebert, Michael Rumery, Mark Sidor
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.
Improvement Of Mounting Techniques For Accelerated Wear Testing Of Artificial Heart Valves, Kyle Koon, Clay Bougher, Lawrence Yang
Improvement Of Mounting Techniques For Accelerated Wear Testing Of Artificial Heart Valves, Kyle Koon, Clay Bougher, Lawrence Yang
Mechanical Engineering
Confidential
Prosthetic Socket Cooling System, Benjamin K. Kraw, Kathy Ha, Derek Piastrelli, Cuong Lai
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 …
Heart Valve Leaflet Deflection Testing Apparatus, Brandon Cunnane, Andrew Krasts, Jackson Kunz, Steven Warnert
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.
Renal Artery Stent Fatigue Test, Braden Cooper, Munir Eltal, Jennifer Hawthorne, Ashley Schaefer
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 (AAA). …
Sapien3 Comb Stitch Improvement For Edwards Lifesciences, William Harley, Thomas Pluschkell, John Mctigue, Garrett Reed
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.
Edwards Lifesciences - Skirt To Frame Attachment Manufacturing Aid, Samuel Joda, Cesar Grimaldo, Patrick Hutchinson
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
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 and repeatable results …
Handitrike - Recumbent Tricycle, Sean Higginson, Kevin Howie, Vinay Patel
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 most …
Polygrasp: Reach; Myoelectric Prosthetic Hand Iteration, Devon Patrick Augustus, Mighells Blaed Deuel, Ian Noel Fraser, Nicholas Philip Moesser
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 …