Artificial Hearts and 3D Design - UNIVERSITY OF TOKYO

It comes as no surprise that 3D modeling is used in a wide range of product development, everything from automotive parts to household products to medical devices. Perhaps one of the most exciting uses of 3D modeling is in designing artificial hearts, and PTC Creo CAD 3D modeling software is on the front lines of this cutting-edge technology.

The Need for Artificial Hearts

Some quick statistics on heart transplants and the growing need for artificial hearts:

1. Heart disease is the planet’s leading cause of death, according to the World Health Organization, killing 7.4 million people annually.
2. The need for donor hearts is skyrocketing, but the number of hearts available is flat and falling.
3. 4000 people in the U.S. and over 3,000 in the European Union are waiting for donor hearts (estimates from the U.S. Department of Health & Human Services and the European Commission Department of Health).
4. Artificial hearts have been used mainly as a bridge to keep patients alive until a human heart becomes available. Since viable artificial hearts were first invented 45 years ago, only 1,413 have been implanted (about 30 per year).

Doctors have come to prefer ventricular assist devices—which can help the patient’s own heart pump blood—over full-scale artificial hearts, due to the following issues:

1. Artificial hearts are often rejected by patients’ bodies.
2. They can impede blood flow and cause strokes.
3. They are very expensive (in the neighborhood of $250,000).
4. Artificial hears are typically more than twice as big as a human heart.
5. The risk of infection is high, the more elements implanted raises this risk.

3D Modeling and Artificial Heart Design

Racing to develop the next generation of artificial hearts that will combat these problems, Takashi Isoyama and a team of researchers at the University of Tokyo Graduate School are using 3D CAD software to model the heart, complete with animation that can show the way blood will flow through it. 3D models accelerated the process of designing the blades for the turbo pump, versus two-dimensional CAD.

The Tokyo team used Creo software to design a non-contact rotary pump that consists of a shaft and a bearing. The 3D models sped up the process, Isoyama says, and made it easier to export the plans to computer-aided engineering software such as ANSYS for the next step: precision-machining the parts.

Isoyama’s artificial heart design, the Helical Flow Total Artificial Heart, has already been implanted into a goat (which was kept alive for a record 100 days), and the final model for animal use could be ready by 2016, with a human model following five or more years down the road.

PTC is proud to be a part of artificial heart technology, with our advances in 3D modeling and simulation, which will be used to save lives in the future.

PTC Creo 4.0 - The 3D CAD Revolution is Here..

In this 45-minute overview, Paul Sagar, Creo VP of Product Management, talks about the “groundbreaking capabilities available in Creo 4.0.” You’ll learn about new tools for model-based definition; additive manufacturing; and smart, connected design; as well as productivity improvements. If your time is limited and you want to learn as much as you can about the new release in the shortest amount of time, dial in for this big-picture introduction to Creo 4.0.

Lattice structures optimized for 3D printing in Creo 4.0.

What’s New in Creo Parametric

When you hear about “productivity improvements” in software, it’s tempting to think we’ve moved a tab here or added a menu pick there. But product managers at PTC are saying the changes to the UI with Creo 4.0 are some of the most exciting features in the release. Tune in to this session with Martin Neumüller, Director of Product Management, and find out how Creo 4.0 will improve your design productivity.

Implementing and Complying with Model-Based Definition

Whether you need to cut product costs, get better feedback from downstream contributors, or streamline the design review process, model-based definition (MBD) can help. New functionality in Creo 4.0 adds enhancements to 3D annotations, expanded capabilities with combination states, and improvements in creating derivative 3D formats and 2D artifacts. Product Manager Raphael Nascimento presents this session.

Design for Additive Manufacturing

Creo 4.0 is streamlining the process of 3D printing your designs. This release will provide a single environment for anyone who wants to design, optimize, prepare, and validate designs for 3D printing. Plus, you should see what it can do with lattices! Join PTC Product Manager Jose Coronado and learn how the software automates the creation and optimization of product designs that only additive manufacturing can create.

Smart, Connected Product Design

Whether you design cell phones, cars, or industrial pumps, understanding how your products are used in the real world is invaluable. In this session, Product Manager Arnaud van de Veerdonk shows you exciting new enhancements in Creo 4.0 to help you design, build and optimize smart, connected products. Take advantage of the IoT to improve product quality and ensure that future products better meet the needs of your customers.

Simulation Assisting with the Adoption of Internet of Things through the Development of Smart Medical Implants

How Simulation is Assisting with the Adoption of Internet of Things Through the Development of Smart Medical Implants.Digital health is taking healthcare by storm  and is expected to reach $233.3 billion by 2020, driven particularly by the mobile health market. Connected medical devices and associated services are perceived to be able to offer safer  and more effective healthcare. Novel connected medical device examples include Saluda’s  closed-loop neuromodulation system for pain management, EBR’s wireless pacing system and  St Jude Medical’s wireless-enabled pacemaker – all examples of implants with wireless connectivity.

A key challenge for medical device designers is to understand  and optimize the communication between the device and the  receiver. Pioneering companies like Cambridge Consultants were

early adopters of engineering simulation to model the behavior of  medical devices and their communication components, together with  the surrounding environment – and particularly ‘through-body’ communication. In this webinar, we will discuss the growing importance of connectivity and the necessity of using computer-based modeling to enable this critical technology.

Cambridge Consultants will also present a case study that highlights the use of computer modeling to quantify the impact of different body morphologies on implant radio performance. An understanding of these coupled with use case and  end user morphology will define if the radio performance is incredibly successful or  marginally adequate.

Moldex3D – The New Quality in Design of Car Interiors in Dr. Schneider Automotive

Industry: Automotive

Team Leader: Przemysław Narowski

Company/Team Introduction:  Dr. Schneider Automotive Poland specializes in high quality automobile-related plastic products – from innovative ventilation systems to highly integrated interior covers and sophisticated modules for instrument panels and center consoles that are not only aesthetic but also functional.

Story Overview/Challenge:

Przemyslaw Narowski is a CAE Engineer at Dr. Schneider Automotive Poland. He took on an unconventional approach to tell us his unique #Moldex3DStory. He uses three different perspectives in time: the Past, the Present, and the Future to take us on the journey with him to witness, experience and envision the evolution of a CAE solution – Moldex3D in his company. He explains from how the true need for an injection molding process simulation emerged within his company and why Moldex3D was chosen, to how it is used in a feasibility study of a new designed part now, and to the extended use of Moldex3D’s other simulation solutions to broaden their technical capabilities and the future outlook for a streamlined engineering workflow from CAD, through CAE to CAM. Multiple real cases are shown in his story to illustrate the accuracy of Moldex3D’s results and the values of using it.

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Solution:

Moldex3D is chosen to assist the design and development of plastic products. It is used in the whole product development process from the part design stage, the initial assessment for part feasibility including choosing the gate location, the cycle time estimation, etc. and to the workshop floor for troubleshooting difficult production challenges such as warpage, air traps, and other molding errors. For instance, in the case of a fuel filler part, Dr. Schneider Automotive Poland was able to reduce the warpage amount by 40% with the help of Moldex3D’s analysis in order to ensure the molded parts meet the required standards. In addition, for car interior parts, aesthetics is also very important. Moldex3D successfully helped solve an air trap issue of a car interior part to avoid a visible surface defect.

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Results/Benefits:

·         Test new designs for part feasibility such as the ideal gate locations and the estimated cycle times

·         Solved difficult molding challenges such as warpage (by 40% in one case) and air traps

·         Inspire “Reverse Simulation” concept for the future product development direction

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Leverage exptertise in PTC CREO View

Most engineers are living in a 3D world. The CAD models they build as part of the design process are 3D as are the simulations  that prove out those concepts and the realistic prototypes output with, you guessed it, 3D printers working off the same 3D data. Yet outside of engineering—in manufacturing departments, throughout the supply chain, even within service—the 3D model has  yet to become the holy grail. In fact, it’s more likely that 2D drawings are the go to resource for information about a particular product design.

 As a result, organizations are not poised to capitalize on the myriad benefits of the Model-Based Enterprise, a vision for a collaborative environment with a 3D product definition as the definitive information resource for activities spanning a product’s complete lifecycle.As standards evolve for 3D models to embed other types of non geometric data product and manufacturing information (PMI) such as geometric dimensions and tolerances, materials information, and surface finishes, among other items—pioneering companies like Toyota and Boeing have gone on record with claims that a MBE approach can translate into a 50% reduction in costs. The savings are due to the efficiencies and increased accuracy of leveraging the 3D product definition for everything from setting up manufacturing workflows to inspecting parts and creating process planning instructions.

A model-based definitions help companies save time, eliminate scrap, and promote reuse since engineers are devoting fewer hours to creating, clarifying or fixing documentation, they have more time to spend on actual design and engineering work, which leads to better products. A model-based approach to have particular value for developing and managing families of products and their variants.

The research showed companies delivering 23% more projects on time at 62% lower cost compared to organizations using MBE alternative approaches.Invest in the right tools. CAD is at the crux of an MBE, but the CAD tool has to be agnostic so it can work with a variety of CAD data and it has to have options for annotating the 3D CAD model with data required by downstream users in manufacturing. PTC Creo View MCAD, for example, provides a way to publish design intent from a 3D CAD model into a format that can be easily viewed and interrogated by downstream users, including selective geometry, dimensions, and tolerances. Further, the PTC Creo View Design Check option replaces the redlining/pen and paper-based process with a digital tool that maintains an electronic marking history of all design check cycles.
PTC Creo View Design Check replaces traditional  redlining and paper-based processes.