MEDICAL HEAT TREAT NEWS

ECG Technology Allows Robust Processing of Heat-Treated Steel

 

A medical devices design and manufacturing firm recently expanded its Electrochemical Grinding (ECG) technology, enabling it to provide more robust processing of harder materials such as spring-tempered steel and heat-treated stainless steel.

Cadence Inc, which is headquartered in Staunton, Virginia, installed its latest equipment for processing profile grinding- shavers and related products at the company’s Cranston, Rhode Island, facility. The expansion incorporates high precision, burr-free grinding with CNC control

“This latest technology allows us to produce high precision, burr-free point grinding, as well as complex geometries with a cost-effective process for our customers,” stated John Rose, Senior Project Engineer at Cadence RI.  “Some of our current operations such as tube cutting, stylet notch cuts, and trocar tip forms are now burr free in one efficient process.”

The new ECG technology also allows grinding to extremely tight tolerances and very low cutting forces for thin wall parts.  Furthermore, Cadence can cut almost all types of metals burr-free with this new technology.

In addition to medical devices, Cadence manufactures life science and industrial products.

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Medical Grade Stainless Steel “Smart Stent” Detects Narrowing of Arteries

 

Kenichi Takahata

For every three individuals who have had a stent implanted to keep clogged arteries open and prevent a heart attack, at least one will experience restenosis—the renewed narrowing of the artery due to plaque buildup or scarring—which can lead to additional complications.

Now, a team led by UBC electrical and computer engineering professor Kenichi Takahata has developed a type of “smart stent” that monitors even subtle changes in the flow of blood through the artery, detecting the narrowing in its earliest stages and making early diagnosis and treatment possible.

“We modified a stent to function as a miniature antenna and added a special micro-sensor that we developed to continuously track blood flow. The data can then be sent wirelessly to an external reader, providing constantly updated information on the artery’s condition,” said Takahata.

The device uses medical-grade stainless steel and looks similar to most commercial stents. Researchers say it’s the first angioplasty-ready smart stent—it can be implanted using current medical procedures without modifications.

Research collaborator Dr. York Hsiang, a UBC professor of surgery and a vascular surgeon at Vancouver General Hospital, noted that monitoring for restenosis is critical in managing heart disease.

Dr. York Hsiang

“X-rays such as CT or diagnostic angiograms, which are the standard tools for diagnosis, can be impractical or inconvenient for the patient,” said  Hsiang. “Putting a smart stent in place of a standard one can enable physicians to monitor their patient’s health more easily and offer treatment, if needed, in a timely manner.”

The device prototype was successfully tested in the lab and in a swine model. Takahata, who holds patents for the technology, says his team is planning to establish industry partnerships to further refine the device, put it through clinical trials and eventually commercialize it.

The research is described in the May issue of Advanced Science and featured on its front cover. Engineering researcher Xing Chen, now a research associate at the Johns Hopkins School of Medicine, and Babak Assadsangabi, a postdoctoral fellow at UBC’s faculty of applied science, also contributed to the study.

 

Photo credit: University of British Columbia; photo caption: The device uses medical-grade stainless steel and looks similar to most commercial stents.

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Heat Treatment to Strengthen Stents

 

Source: Buehler.com

 

Manufactured from titanium, 316L steel, cobalt chromium alloys, platinum chromium, titanium (Ti6Al4VELI) and nitinol alloys, medical stents are a critical component in treatments that require mesh scaffolding to open blocked vessels or ducts. In order to validate the thickness of the walls or strengthen the stent where modifications have taken place, manufacturers utilize laser machining, which can result in microstructural changes to the alloy. Heat treatment enters as a vital process to relieve internal stresses and improve fatigue properties.

“Nitinol stents which are generally self-expanding utilize the elastic properties of the alloy and require a shape-setting process to fix the final shape of the stent,” write Dr. E. Mogire and D. Crozet in a paper recently published by Buehler.

 

Read more: “Metallographic Preparation of Medical Implants – Stents, Orthopaedics…”

 

 

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Medical Devices Manufacturer Modernizes Furnaces with Process Control Upgrades

A medical implants manufacturer recently modernized three vacuum furnaces at its Memphis, Tennessee, facility, with process control upgrades from a provider of industrial process control and automation to heat treatment and combustion markets.

Orchid Orthopedic Solutions (Orchid Memphis) commissioned the upgraded process controls from United Process Controls (UPC), headquartered in West Chester, Ohio, for Ipsen VFS vacuum furnaces, retrofitting two furnaces with replacement controls and a total control system replacement for the third furnace. Orchid Memphis was contending with underperforming controls that were compromising furnace efficacy, productivity, and uptime. Additionally, insufficient automation made it harder to push towards a paperless approach to reporting, traceability, and diagnostics.

All systems feature Protherm 700 controllers, and soft start panels were introduced to help lower energy costs during quenching. The upgraded systems also include chart recording and recipe control, the latter of which incorporates specific programming for automatic leak test cycles and guaranteed soak for medical industry requirements – tasks that were previously monitored and recorded manually. The improvements also make it easier for Orchid Memphis to streamline its maintenance process and manage maintenance tasks. This way, leak-up rates, events, and alarms are automatically and accurately reported. Moreover, upgrading with new controls and automation ensures that Orchid Memphis meets the more complex and stringent requirements of the US Food and Drug Administration (FDA) for medical implants.

“There was no need to start from scratch,” noted Rob Freeman, UPC services engineer heading the upgrade. “The furnaces were robust, but existing controls needed re-engineering to enhance the flexibility of operations and to meet the specific needs of Orchid Memphis in a cost-effective manner. By maintaining a focus on long-term operations, furnaces were upgraded to new business demands without incurring high upfront costs associated with new assets.”

Another key aspect of the upgrade was SCADA integration leading to unified operations. In the final stage of the project, the furnace controls were connected to the Protherm 9800 automation platform, which is configured to improve workflow efficiency, optimize furnace utilization, track work orders, and view real-time performance metrics.

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The Future is Here. How Will it Impact Your Business?

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A must-attend event for thermprocess and industrial finishing & coatings executives, ITPS/IFCS will provide a unique platform for industry intelligence and collaboration. This two-day Summit will feature two joint general sessions with a total of ten presentations addressing topics of crucial importance to all manufacturing leadership, including:

 

Factories of the Future: What Does the Future Workforce Look Like?
Dr. Irene Petrick, Market Innovation Director, Industrial Solutions Div./Internet of Things Group, Intel Corporation

Industry 4.0, Industrial Internet of Things, the Fourth Manufacturing Revolution, Artificial Intelligence – these terms have quickly become standard manufacturing terminology, but exactly how do they impact your business and your workforce? Dr. Petrick will address what manufacturers can expect on the factory floor as well as changes to their workforce as these once-ideological concepts become today’s reality.

 

 

Trends in Additive Manufacturing
Todd Grimm, Founder and President, T.A. Grimm & Associates, Inc.

The hottest and likely fastest growing industrial technology over the past several years, Additive Manufacturing (AM) pops up in virtually every conversation about advanced manufacturing. AM expert Todd Grimm will offer insights on trends, metal and non-metal applications, and their impact on manufacturing that will assist thermprocessing and finishing business leaders in devising a strategy to leverage, or counter, AM’s impact.

 

 


 

Why I'm Attending: 
“This event is uniquely valuable in the thermal processing and finishing industries to C-level or equivalent people. I’ve found the 2-3 days to be an excellent opportunity to keep up with the latest “mega-trends” and as a refreshing time for thinking outside the box and making exceptionally valuable industry contacts.”

Doug Glenn, Publisher and Editor
Heat Treat Today

 

[button link="www.itps-ifcs.com" size="default" icon="Select a Icon" side="right" target="blank" color="b70900" textcolor="ffffff"]Register Now[/button] Save 25% with discount code ED25C.
Registration discounts are available for IHEA, CCAI, MTI, CECOF, JIFMA, VDMA, Electrocoat Association and WiM members.
To register, or for complete Summit information, including hotel reservations and registration, visit www.itps-ifcs.com.
Please call 941-373-1830 with questions.

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A Heat Treater’s Primer on Getter Materials

 

Source: VAC AERO International

 

A common dilemma for operators of vacuum systems is to protect the integrity and maintain the life expectancy of components when the presence of unwanted gaseous contaminates threatens to destroy the sensitive materials in the processing environment. Getter materials are the MVPs that step up to the plate to protect work in a low-pressure vacuum environment.

Table 1 [1] Getter Capacity of Common Materials
The folks at VAC AERO International have provided a primer on getter materials which answers the heat treater’s questions, such as:

  • What is a getter?
  • What are the properties of getter materials?
  • What materials are best as getters for most heat-treating applications? What about for more sophisticated applications?
  • What are non-evaporative getters, and what role do they play?

“For heat treaters, getters are often considered a last resort to help keep parts ‘bright and clean’. In point of fact, they play an important role in successful vacuum processing of many highly sophisticated products and materials. As a result, we need to do a better job of understanding their role; how and where they can help.”

 

Photo Credit and caption: Titanium Discs used as a Getter Material in Brazing of Oxidation Sensitive Components – (Photograph Courtesy of California Brazing, Newark, CA)

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Heat Treatment Sector to Contribute to Medical Technology Research for Improved Health Care, Medical Devices

The Heat Treatment Pty Ltd. of Queensland, Australia, will contribute to a new research hub set to drive advances in Australia’s medical technology sector by developing cost-competitive technologies for the rapid production of medical devices.

Researchers from The University of Queensland’s Faculty of Engineering, Architecture and Information Technology have teamed up with experts from industry, government, and academia to launch the Australian Research Council (ARC) Research Hub for Advanced Manufacturing of Medical Devices (AMMD Hub).

UQ Vice-Chancellor and President Professor Peter Høj

With researchers based at Cook Medical Australia, the AMMD Hub will focus on the development of advanced materials, improved manufacturing technologies and flexible processing capabilities.

UQ Vice-Chancellor and President Professor Peter Høj said one of the key goals for this hub was to create better health outcomes for patients in Australia and around the globe.

“One of the intended outcomes is to reduce the time it takes to design, manufacture and supply custom-made medical devices such as endovascular stent grafts for patients with aortic aneurysm – an increasingly common condition that currently has post-rupture survival rates of only 10 to 20 per cent,” said Professor Høj. “It’s an exciting venture with lots of potential, and we look forward to celebrating the results.”

Professor Sue Thomas, Australian Research Council CEO

Researchers have already begun work in the area of lean manufacturing to improve the production times of custom-made devices to surgeons. Projects looking at adaptive automation systems, metallic biomaterials, and collaborative robotics are also underway.

“This Research Hub’s industry-focused research collaboration will develop new, advanced materials and processes that will not only lead to tangible health outcomes for Australians but also drive new technologies and skills that are vital for the competitiveness of Australia’s medical devices industry,” said Professor Sue Thomas, Australian Research Council CEO.

The AMMD Hub brings together researchers from UQ, The University of the Sunshine Coast, The University of Sydney and RMIT with industry partners including Cook Medical Australia Pty Ltd., Robert Bosch (Australia) Pty Ltd., Heat Treatment (Qld) Pty Ltd. and QMI Solutions Ltd.

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Economy Spring Plans Move to New Facility, Expanding Manufacturing Capacity

A Connecticut producer of precision metal components plans to relocate its manufacturing operations to a significantly larger facility in Southington, Connecticut in early 2019.

Economy Spring, whose current facility is pictured here, plans relocation to larger facility.

Economy Spring, an MW Industries company, announced that this expansion is fueled by the rapid growth of Economy Spring’s coiled springs, wire forms, and product assemblies sold to customers in medical and pharmaceutical applications. The new 216,000 square foot facility will be over twice the footprint of the existing Southington facility. Equipment will be moved in various stages during 2018 and 2019 with no expected operational impact to customers.

The company manufactures a broad range of medical and pharmaceutical products such as but not limited to surgical staples, hypodermic needles, and implantable titanium products.

“Economy Spring’s growth means we need more space to meet future customer demand. By selecting a facility just a mile down the road, we expect complete retention of our committed, technical, and highly experienced workforce,” explained Tim Thompson, senior vice president and general manager of Economy Spring. “Our transition plans include building finished goods inventory and communicating closely with customers to ensure a seamless transition.”

Photo credit: Pixabay

 

 

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Med Device Structural Accuracy Demands Advanced 3-D Process, Heat Treatment

Heat treatment plays a vital role in the accurate production of patient-specific joints and prostheses at a Lithuanian manufacturer and provider of 3D-printed patient-specific implants, endoprosthesis, and surgical guides and services in the EU, where researchers have leveraged the metrology scanning solutions of Nikon Metrology.

Baltic Orthoservice, based in Kaunas, combines the Nikon technologies of multi-sensor CCM and laser scanner with a micro-CT system to guarantee internal structural quality and geometric accuracy to achieve improved production of a wide variety of medical services. For manufacturing patient-specific implants, Baltic Orthoservice uses DMLS technology (direct metal laser sintering). The implants then undergo a variety of post-processing steps, including heat treatment, surface polishing and milling for screw holes.

The complete process and treatment solution allows for single-device design with “anatomically adapted surfaces. This eliminates the risk of instability and adapts the implant to the bone rather than the bone to the implant,” explained Milda Jokymaitytè, Clinical Engineer at Baltic Orthoservice. A major benefit of this procedure is that during surgery, there is no need to shape the bone in order to adapt it to the implant or use bone cement, meshes and augments to fill the bone defect. Patient-specific implants are designed using virtual anatomical bone models which are obtained from medical computed tomography (CT) scan of a patient.

Domantas Ozerenskis – Product Quality Manager at Ortho Baltic with the Nikon Metrology XT H 225.

“3D printing is a complicated technology and there is a big variation in processing parameters, so predicting the quality and geometry of printed objects is quite a challenge,” said Paulius Lukševičius, engineer of mechanics at Baltic Orthoservice. “Patient-specific implants are a bespoke treatment solution, which means that the surgery must be ‘pre-planned’ virtually so the implant can simply be put in place. To be able to execute the virtual plan, it is vital to be 100% sure that the implant geometry is exactly the same as the CAD model and that the holes are machined to high accuracy.”

 

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Swedish Group Invests in Titanium, Nickel-Based Metal Powders Production

Annika Roos, head of product area powder at Sandvik Materials Technology

A Swedish engineering group in metal-cutting and materials technology recently announced that it will invest about $24.5 million in a new plant for manufacturing of titanium and nickel fine metal powders near its raw material supply and additive manufacturing center in Sandviken, Sweden.

The group’s investment within Sandvik’s Materials Technology will complement its manufacture of broad stainless steel, nickel-based, and cobalt-chromium alloys in the United Kingdom and Sweden. Sandvik powders reach sectors throughout Europe, North America, and Asia through the Osprey™ brand.

The demand for metal powder for additive manufacturing is expected to increase significantly in the coming years. Titanium and nickel-based alloys are key growth areas in the field of additive manufacturing, accounting for a significant portion of the metal powder market.

“This investment is an enabler for future growth and means that we are expanding our metal powder offering to include virtually all alloy groups of relevance today. In addition, it will also support the overall additive manufacturing business at Sandvik,” said Annika Roos, head of product area powder at Sandvik Materials Technology.

The facility is expected to be operational during 2020.

 

 

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