Additive Manufacturing For Medical Education, Michael Noon

College of Engineering Summer Undergraduate Research Program

A growing body of evidence is suggesting that anatomical knowledge, the keystone of many medical specialties, is suffering among new graduates. While a host of reasons are provided, one common thread that many point to is the decline of cadaver dissections in the classroom. Many virtual audio-visual tools are used to address this gap, yet evidence has shown their ineffectiveness. Given this gap, the high degree of flexibility found in additive manufacturing (AM), and the many uses AM has already found in the medical field, we propose its use to fill this gap, allowing for students to learn with touch …

A 3d Printed Microneedle System For Transdermal Drug Delivery Of Anticancer Drugs, Md Jasim Uddin, Tanvir Ahmed, Dennis Douroumis

Research Symposium

Background: Transdermal delivery of drugs is an attractive alternative to the conventional route of administration as oral delivery. The hypodermic injections are painful and less patient compliance. Microneedles (MNs) are micron-sized, minimally invasive needles to deliver a wide range of molecules (e.g., small, DNA, vaccines etc.) to the upper portion of the dermis in a sustained and controlled manner, without causing any pain. The introduction of 3D printing technologies in the fabrication of MN will promote one-step manufacturing tools and scale-up for the delivery devices of anticancer drugs.

Methods: The 3D printed MN (3DMN) arrays were fabricated using Stereolithography (SLA), …

Evaluation Of 3d Printing Technologies And 3d Printed Materials In The Use Of Orthotic And Prosthetic Devices, Cory Larson

Master of Science in Kinesiology

Additive Manufacturing (AM) is disrupting fabrication techniques, bringing new design possibilities with associated benefits of less waste, improved design, improved time management, and less cost. The field of Orthotics and Prosthetics (O&P) is investigating how 3D printing, a subset of AM, can be used for fabrication of O&P devices. Before this technology is fully accepted, it needs to go through rigorous testing to ensure the safety of the individuals using the devices and the longevity of the devices themselves to ensure long term-use as a viable option. Research needs to define which type of 3D printing technology and what printed …

Evaluation Of Using 3d Printing To Design And Build Omm Spinal Models For Teaching And Education, John Matechak, Madison Cohen, Meagan Sherrington, Joy Zarandy

Research Day

INTRODUCTION: Understanding spinal mechanics is the foundation for osteopathic manipulative medicine (OMM) training. With such knowledge, osteopathic physicians may confidently diagnose and treat spinal somatic dysfunctions. However, a dynamic and objective teaching tool to educate students on spinal mechanics has not been established. While 3D printing is gaining utility in academia, it is only just beginning to be employed within osteopathic educational settings. A literature review found a single study exploring the use of 3D printing to educate students on rib mechanics. Our study makes use of 3D printing to develop a functional model to teach and test students on …

Design And Preliminary Testing Of A Multi-Use 3d-Printed Splint For Wilderness Medicine, Ryan Desrochers, John Desrochers

Rowan-Virtua Research Day

Splinting devices are commonplace in emergency medicine, as musculoskeletal and soft tissue injuries account for a majority of nonfatal events in wilderness medicine. Current splint designs, such as the SAM splint, sacrifice site-specific stability for their portability. This leads to the need for a similarly portable, but more securely fitting splint device. This design aims to provide a lightweight, multi-use, reusable, biodegradable, and inexpensive solution for splinting in wilderness medicine. A thin plate constructed of polylactic acid extruded from a 3D printer becomes easily malleable after submersion in hot water and can be form fitted to almost any location on …

Effect Of Different Supporting Die Materials And Crown Thicknesses On The Fracture Load Of Monolithic 3y-Tzp Zirconia And Lithium Disilicate Crowns, Akram Mohamed Mohamed Gad Sayed Ahmed

All ETDs from UAB

Background: Conventionally, the strength of dental materials used for fixed restorations is measured using specimens of simplified geometry (i.e bars or discs). There is value in measuring the strength of these materials in their anatomic geometry (i.e crowns) under clinically relevant loading conditions. One advantage of performing the so-called crown fracture test is that the material may benefit from its ability to be strengthened by its bond to a tooth-mimicking die. When performing a crown fracture test, the ideal die material is natural tooth structure. However, the variability in natural tooth anatomy and microstructure makes the use of a standardized, …

Can 3d Printers Create Viable Personalized Therapy In The Treatment Of Diabetes?, Lyla White

Holster Scholar Projects

This study aimed to use 3D printing techniques to create a drug tablet containing two commonly used active ingredients (metformin and glyburide) for treating diabetes in a single pill. The hypothesis was that both drugs can be given in doses not available commercially and that these pills will have appropriate hardness, and extended-release dissolution. I was able to create 48 tablets that contained evenly dispersed active ingredient powder and met the weight requirements with consistency between tablets. Unfortunately, we had to substitute the usual bulk excipient for another because it was incompatible with the metformin and the replacement (mannitol) may …

3d Printed Midface Models For Percutaneous Nasal Osteotomy Surgical Education, Raphael G. Banoub, Kurren S. Gill, Alice R. Karp, Jared M. Goldfarb, Emily S. Sagalow, Roxana Moayer, Howard Krein, Md, Joel J. Stanek, Robert S. Pugliese, Ryan N. Heffelfinger

Department of Otolaryngology Data Sets

No abstract provided.

Evaluation Of Potential Exposure Risks From 3d Printing Operations Using Niosh Evade Software, Cheri Marcham, Rustin Reed

Publications

Presentation discusses the following research objectives:

1. Address student workers’ concern regarding respiratory health

2. Characterize aerosol and VOC exposures during printing operations

3. Identify primary sources of exposure using NIOSH EVADE software, spatial analysis

The Effect Of 3d Printed Models On Surgical Planning And Outcomes For Partial Nephrectomies, Samuel Morano, E. Reilly Scott, Andrea Quinn, Erica Mann, Adam Schneider, Connor Mcpartland, Kaitlyn Boyd, Alice Karp, Abhay Singh, Md, Thenappan Chandrasekar, Md, Mark Mann, Md, Edouard Trabulsi, Md, Vishal Desai, Md, Costas Lallas, Md

Phase 1

Purpose:

Partial nephrectomies to remove renal masses are kidney-sparing procedures that rely on anatomical comprehension. Prior research demonstrates complex and expensive 3D models (~$1000) increased surgeons’ confidence in selecting their operative plan. We aim to use simpler and cheaper 3D models to improve preoperative surgeon confidence and support operative management.

Methods:

3D printed models (~$35) of the affected kidney, mass, and renal vasculature were created using preoperative CT or MRI imaging of 17 patients presenting for partial nephrectomies at Thomas Jefferson University (TJU) between July and December 2020. The models were created at TJU using Ultimaker technology.

Surgeons filled …

Assessing The Educational Impact Of 3d Printed Models On Fellow, Resident, And Patient Education For Partial Nephrectomies, E. Reilly Scott, Samuel Morano, Andrea Quinn, Erica Mann, Kaitlyn Boyd, Michelle Ho, Alice Karp, Abhay Singh, Thenappan Chandrasekar, Mark Mann, Edouard Trabulsi, Vishal Desai, Costas Lallas

Phase 1

Purpose:

3D printing is a growing tool in surgical education with the ability to visualize and teach complex procedures from multiple angles. Previous studies demonstrated 3D models as useful teaching tools for partial nephrectomy for patient and trainee education. We aim to create a cheaper and simpler 3D model to encourage these learning opportunities.

Methods:

Patient-specific, cost-effective ($35) 3D models of the affected urologic structures were created using preoperative imaging of 17 patients undergoing partial nephrectomies at Thomas Jefferson University Hospital between July and December 2020.

Patients receiving the surgery filled out two surveys about their understanding of …

Harnessing Acoustic Streaming For Bioanalysis In Microfluidics, Xiaojun Li

Graduate Theses, Dissertations, and Problem Reports

In the past few decades, microfluidic technology has been developed rapidly in both fabrication methods and multifunctionality integrations, making it a powerful tool for a wider variety of biological applications. The device fabrication method has expanded from conventional polymer-based micro devices to 3D-printed micro devices, and allows multiple functions such as electric, optic, magnetic and acoustic to be integrated on a single platform. This dissertation focuses on method development of acoustic streaming-based microfluidics in bioanalysis such as immunoassay, enzyme kinetics and DNA fragmentation analysis. In this dissertation, a micromixer was developed based on acoustic streaming generated from sharp-edge structure vibration …

Validation Of Novel Obstructive Sleep Apnea Treatment With Silicone Gel Experimental Models, Dustin Walter Burd

UNLV Theses, Dissertations, Professional Papers, and Capstones

Predictive modeling to increase treatment success rates for surgical procedures is becoming more common in the scientific community. For obstructive sleep apnea (OSA), modeling has been predominately performed using computers as opposed to experimental models. Computer simulation saves time by eliminating the need to fabricate complex experimental models but comes at the expense of insight gained through physical observations made in real time. Experimental models for studying OSA are needed to validate computational work, provide perspective on anatomical scale and demonstrate complex deformations in real time. This work addresses prior hurdles in experimental model fabrication with a novel process using …

Endoscopic Removal Of Fractured 3d-Printed Nasopharyngeal Swabs From The Olfactory Cleft During Covid-19, Matthew Miller, Kristy Carlson, Jayme Dowdall, Christie Barnes, Sam Pate

Graduate Medical Education Research Journal

The severe acute respiratory syndrome SARS-CoV-2 pandemic has posed significant challenges to hospital and public health systems in the United States. In response to a shortage in nasopharyngeal swabs, our institution developed, tested, and deployed 3D-printed swabs to obtain a specimen for testing. A patient was tested in preparation for a scheduled Esophagogastrodeuodenoscopy. During the procedure the swab broke and a portion remained in the superior meatus and olfactory cleft. This case study describes the process of locating and removing the broken sections of the 3D-printed swab. In response to this incident, 3D-printing teams test swabs for sample collection and …

Development Of Abuse Deterrent Formulations Using Hot Melt Extrusion, Pavan Kumar Nukala

Theses and Dissertations

In recent years prescription drug diversion, misuse, abuse represent a growing problem for the United States. Oral ingestion, snorting, injection are most commonly employed routes of abuse. To circumvent this problem hot melt extrusion (HME) was employed to prepare abuse deterrent formulation (ADF). Abuse Deterrent Immediate Release Egg-Shaped Tablet Using 3D Printing Technology: Quality by Design to Optimize Drug Release and Extraction. In current work, we developed egg-shaped tablet (egglet) using fused deposition modeling (FDM) 3D printing. Drug-loaded polymeric filaments (1.5 mm) were prepared using HME followed by printing into egglets of different sizes and infill densities. Based on printability, …

Custom 3d Printed Orthotic, Dakota Kirtley, Andrew Wiles

Williams Honors College, Honors Research Projects

The goal of this senior design projet is to develop a cutsom 3D printed orthotic shoe insert. Pressure mapping, laser scanning, and 3D modeling will be used to create a truly custom orthotic for each foot. Pressure mapping will give the weight distribution on an individual's food and the laser scanner will give the x-y coordinates of the foot. these two together will be used to generate a a 3D model which will then be 3D printed to create a custom orthotic. Research and material testing will also be done to determine the best material type to be used in …

The Effect Of Print Angulation On The Accuracy And Precision Of 3d-Printed Orthodontic Retainers, Allison Williams

Theses and Dissertations

Purpose: The aims of this study were: 1) to compare the accuracy and precision of 3-

dimensional (3D) printed retainers at various angulations, 2) to evaluate the effect of angulation

on printing time and the amount of resin consumed.

Methods: Using a stereolithography (SLA) 3D printer, a total of 60 clear retainers were printed at five angulations (n=12, each): 15, 30, 45, 60, and 90 degrees. Six retainers were printed each cycle at a random order for all print angulations as print 1 and print 2. Digital images of the original and printed retainers were superimposed. Discrepancies on eight landmarks …

Report: The 2018 Vincentian Innovation Summit, Anna Morozova, Kevin Rioux

Journal of Vincentian Social Action

No abstract provided.

3d-Printed Fluidic Devices And Incorporated Graphite Electrodes For Electrochemical Immunoassay Of Biomarker Proteins, Abdulhameed Alabdulwaheed

Electronic Theses and Dissertations

Biomarkers are measurable indicators of health status or disease state that can be used for diagnosis and may help guide patient treatment strategies. Enzyme-linked immunosorbent assays (ELISA) and other many clinical techniques currently used for measuring biomarker proteins lack sensitivity, demand high analysis cost, are often not well-suited for measuring multiple biomarkers in a single sample, and require long analysis times. Here, we demonstrate simple, low-cost 3D-printed flow-through devices with integrated electrodes modified with gold nanoparticles (AuNPs) for electrochemical immunoassays of S100B, a biomarker protein related to conditions like skin cancer and brain injuries. Flow-through devices are fabricated from photocurable-resin …

Modern Advances In 3d Bioprinting Techniques: The Organ Easy-Bake Oven, Michael Oladosu

D.U.Quark

Bioprinting is an additive tissue manufacturing process in which cells are stacked in a layer by layer process. Progress in bioprinting techniques have advanced the potential in various medical disciplines such as printed tissue, organs, and bone structures for implantation. Due to the wide array of variations in terms of application there can be a lot of confusion as to what the best method would be to print a structure. This review will describe key factors to the printing process such as bioink selection, printer configurations as well as post-print stabilization methods. Greater understanding of available technologies can dramatically improve …

The Effects Of Emerging Technology On Healthcare And The Difficulties Of Integration, Skyler J. Pavlish-Carpenter

Honors Undergraduate Theses

Background: Disruptive technology describes technology that is significantly more advanced than previous iterations, such as: 3D printing, genetic manipulation, stem cell research, innovative surgical procedures, and computer-based charting software. These technologies often require extensive overhauls to implement into older systems and must overcome many difficult financial and societal complications before they can be widely used. In a field like healthcare that makes frequent advancements, these difficulties can mean that the technology will not be utilized to its full potential or implemented at all.

Objective: To determine the inhibiting factors that prevent disruptive technology from being implemented in conventional healthcare.

Methods: …

Evaluation Of Fit For 3d Printed Retainers As Compared To Thermoform Retainers, David J. Cole

Theses and Dissertations

ABSTRACT

EVALUATION OF FIT FOR 3D PRINTED RETAINERS AS COMPARED TO THERMOFORM RETAINERS

By David Cole, D.M.D.

A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Dentistry at Virginia Commonwealth University

Thesis Directors: Eser Tüfekçi, D.D.S., M.S., Ph.D., M.S.H.A.

Professor, Department of Orthodontics

Sompop Bencharit, D.D.S., M.S., Ph.D.

Associate Professor and Director of Digital Dentistry, Department of General Practice

Introduction: Despite recent advances in three-dimensional (3D) printing, little information is available on 3D printed retainers

Methods: Three reference models were used to fabricate traditional vacuum formed, commercially-available vacuum formed, and 3D printed …

Dynamic Modeling Of Fluid Flow Within Three-Dimensional Perfusion Bioreactor, Zulikayida Maimaiti, Max J. Lerman, Bs, John P. Fisher, Phd, Jesse K. Placone, Phd

Journal of Health Disparities Research and Practice

Three-dimensional perfusion bioreactors have been shown to enhance cell viability and function through improved nutrient exchange. However, the ideal bioreactor scaffold geometry is still unknown. The focus of this study is to use computational fluid flow studies to inform bioreactor design. Specifically, we will model the effect of bioreactor design on fluid shear stress and then correlate these values with stem cell viability in the bioreactor. Previous studies have shown that the maximum shear stress level for the viability of human mesenchymal stem cells (hMSCs) is 0.3 dynes/cm². Two distinct Computer Aided Design models were created consisting of …

Three-Dimensional Printing And Nanotechnology For Enhanced Implantable Materials, Karthik Kumar Tappa

Doctoral Dissertations

Orthopedic and oro-maxillofacial implants have revolutionized treatment of bone diseases and fractures. Currently available metallic implants have been in clinical use for more than 40 years and have proved medically efficacious. However, several drawbacks remain, such as excessive stiffness, accumulation of metal ions in surrounding tissue, growth restriction, required removal/revision surgery, inability to carry drugs, and susceptibility to infection. The need for additional revision surgery increases financial costs and prolongs recovery time for patients. These metallic implants are bulk manufactured and often do not meet patient's requirements. A surgeon must machine (cut, weld, trim or drill holes) them in order …

Three-Dimensional Bioprinting Materials With Potential Application In Preprosthetic Surgery, Mina D. Fahmy, Hossein E. Jazayeri, Mehdi Razavi, Radi Masri, Lobat Tayebi

School of Dentistry Faculty Research and Publications

Current methods in handling maxillofacial defects are not robust and are highly dependent on the surgeon’s skills and the inherent potential in the patients’ bodies for regenerating lost tissues. Employing custom-designed 3D printed scaffolds that securely and effectively reconstruct the defects by using tissue engineering and regenerative medicine techniques can revolutionize preprosthetic surgeries. Various polymers, ceramics, natural and synthetic bioplastics, proteins, biomolecules, living cells, and growth factors as well as their hybrid structures can be used in 3D printing of scaffolds, which are still under development by scientists. These scaffolds not only are beneficial due to their patient-specific design, but …

Lost And Found: Use Of Gps Technology To Improve Storage Of Patient Belongings In Hospital Setting, Shelby A. Sievers, Griffin M. Heise, Min G. Kang, Michael Totty

Chancellor’s Honors Program Projects

No abstract provided.

Development Of Porous Polymeric Implants For Use In Orthopedic Research And Development Applications, Alexander Caddell

Honors College

Current orthopedic implants comprised of plastic, ceramic, or metal alloys are susceptible to surface degradation at the implant-implant interface. The resulting microscopic fragments cause tissue irritation that can lead to osteolysis. In addition, existing percutaneous implants, such as pins used to stabilize fractures, are prone to bacterial infections due to the inability of the surrounding soft tissue to adhere to the implant and form a biologic seal. The goal of this Honors Thesis was to develop porous polymeric implants for orthopedic research and development applications that improve upon current designs in an attempt to remedy the issues detailed above. A …