Medical Device Design & Development
INDUSTRY PERSPECTIVES
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![Maximum Risk]( "Why Adjusted Risk Likelihood Should Displace The Risk Priority Number")
Why Adjusted Risk Likelihood Should Displace The Risk Priority NumberWhile the RPN primarily represents a risk event’s severity, perhaps a more important attribute to focus on is the risk event’s likelihood of occurrence. In this provocative article, Mark Witcher, Ph.D., proposes an adjusted risk likelihood rating approach that emphasizes a risk event’s likelihood of occurrence.
The transition to the U.K.’s new regulatory regime has officially begun as of Jan. 1, 2021. All medical devices on the U.K. market must be registered with the MHRA. Discover the 10 actions you should take to prepare for the U.K. Conformity Assessment process.
The first article in this two-part series covered details associated with economic operator responsibilities, overall QMS considerations, and common challenges during implementation of the EU’s Medical Device Regulation (MDR) and the EU’s In Vitro Device Regulation (IVDR). This article focuses on typical challenges experienced during the technical documentation assessments conducted by the notified bodies.
Application of artificial intelligence (AI) and machine learning (ML) in medical devices is making possible AI/ML-driven diagnostics and personalized treatments. By digesting the different jurisdictional AI/ML regulatory frameworks that have been released (draft or enforceable), along with personal experience with the agencies, John Giantsidis, president of CyberActa, Inc., identifies the common denominators crucial to success.
The transition to the EU’s Medical Device Regulation (MDR) and In Vitro Diagnostic Regulation (IVDR) is not an easy undertaking. This first article in a two-part series highlights the sections that need close attention regarding economic operator responsibilities, overall QMS considerations, and common challenges during implementation. Ensure a smooth transition and avoid pitfalls!
WHITE PAPERS & CASE STUDIES
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![production]( "Manufacturing Process: Tools For A Successful Startup")
Manufacturing Process: Tools For A Successful StartupMedbio offers a number of tips to follow for a successful startup in designing and producing injection-molded parts.
Injection molding has numerous key parameters that must tie together in order to make a repeatable molding process. Medbio offers a solution that utilizes cavity pressure curves, key process parameter tolerances, and automation to automatically reject parts that do not make the cut in in the molding process.
Designing a product with consideration for the manufacturing process can reduce production times and costs, as well as simplify development of transport, storage, and protection solutions.
A global medical device company came to Donatelle for help perfecting a silicon seal component to meet the new ISO 27186:2010 standard. In this case, a seal with micro-features is needed to reliably isolate the four-pole electrical contacts between the pacemaker and defibrillator and fit inside the 6.3 mm medical device.
Devices such as introducer sheaths, delivery catheters, endoscopes, and neurovascular microcatheters aim to minimize trauma during insertion and removal, reduce tissue inflammation, enable maneuverability through tortuous blood vessels, and improve patient comfort. Surface properties should promote smooth movement between certain device components.
DESIGN COMPONENTS & SERVICES
To meet the needs of today's clinical diagnostic and bio-analytical OEMs, Parker Precision Fluidics Division offers the Series 3 Bleach Valve, a high-performance two-way and three-way miniature inert valve. A unique and time-proven design ensures that fluids are contained within the valve, preventing damage to other components.
As its title would indicate, the 100S1G6AB is a solid-state amplifier ideal for testing medical devices for EMC compliance. It covers the 1 to 6 GHz frequency range and can provide up to 100 Watts of output power when used with a sweep generator.
These high speed solenoid valves can dispense microliter and nanoliter volumes at up to 1200 Hz and are ideal for high throughput screening in medical devices, as well as drug discovery. They feature a 250 million cycle (minimum) lifetime, response times as fast as 0.25ms, and operating pressures up to 120 psi.
MEDICAL DEVICE DESIGN & DEVELOPMENT
Medical device design and development is the cyclical process of creating a device for a specific task or set of tasks, and then continuously reevaluating its effectiveness and improving upon it until the device reaches obsolescence. Design and development begins with ideation and the creation of a concept that, if found to be both fiscally and clinically viable, is then designed, engineered, and prototyped. This preclinical period includes bench testing — accomplished through simulated use of the product — and animal testing, along with any necessary redesign work.
Throughout the process, the proposed medical device, and the process by which it will be manufactured, is examined for flaws that may negatively impact the device’s safety, market viability, regulatory acceptance, customer satisfaction, usability, or profitability. Any shortcomings are corrected, and the improvements applied to the final design. Due to the wireless connectivity capabilities of many modern medical devices, cybersecurity and interoperability also must be incorporated into the design. Clinical testing is conducted, using human subjects, to further expose flaws and confirm product strengths. Once both the product design and the manufacturing process have been validated and approved by the U.S. Food and Drug Administration (FDA), production and commercialization of a device may begin.
LATEST HEADLINES
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Noninvasive Optical Sensors Provide Real-Time Brain Monitoring After Stroke2/21/2018
Each year, nearly 800,000 people in the U.S. experience a stroke, and almost 90 percent of those are ischemic strokes in which a clot cuts off blood flow to part of the brain. To prevent further injury, blood flow to the brain must be restored as quickly as possible.
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Embrace Becomes First FDA-Cleared Seizure-Monitoring Smart Watch2/5/2018
Empatica Inc has received clearance from the FDA for Embrace, its award-winning smart watch. Embrace uses AI (advanced machine learning) to monitor for the most dangerous kinds of seizures, known as "grand mal" or "generalized tonic-clonic" seizures, and send an alert to summon caregivers' help.
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Researchers Create Fiber Optic Sensors That Dissolve In The Body2/5/2018
For the first time, researchers have fabricated sensing elements known as fiber Bragg gratings inside optical fibers designed to dissolve completely inside the body.
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NUS Researchers Develop Wireless Light Switch For Targeted Cancer Therapy1/30/2018
A team of scientists from the National University of Singapore (NUS) has developed a way to wirelessly deliver light into deep regions of the body to activate light-sensitive drugs for photodynamic therapy (PDT).
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TU Wien Develops New Semiconductor Processing Technology1/22/2018
Extremely fine porous structures with tiny holes - resembling a kind of sponge at nano level - can be generated in semiconductors.
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Tyndall, Sanmina Partner To Develop Sub-GHz Wearable Health Monitoring Platform1/10/2018
Tyndall and Sanmina Corporation have announced a research collaboration, which will focus on the development of a novel wireless technology for a commercial wrist-worn health-monitoring platform.
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An Organ-On-A-Chip Device That Models Heart Disease1/2/2018
When studying diseases or testing potential drug therapies, researchers usually turn to cultured cells on Petri dishes or experiments with lab animals, but recently, researchers have been developing a different approach: small, organ-on-a-chip devices that mimic the functions of human organs, serving as potentially cheaper and more effective tools.
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Nanowire Device Holds Promise To Detect Cancer With A Urine Test12/26/2017
Cells communicate with each other through a number of different mechanisms. Some of these mechanisms are well-known: in animals, for example, predatory threats can drive the release of norepinephrine, a hormone that travels through the bloodstream and triggers heart and muscle cells to initiate a "fight-or-flight" response.
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Developing The First Pediatric Heart Valve Designed To “Grow” With The Child12/20/2017
Each year 40,000 babies in the U.S. are born with a congenital heart defect, often caused by a defective heart valve, which is estimated to account for 8,000 to 13,000 new cases in the U.S. alone.
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Mass Spectrometric Imaging Technique Makes Diagnosis Easier And Smarter12/17/2017
A team of researchers at DGIST has recently developed a technology which enables to acquire a high resolution mass spectrometry imaging in micrometer size of live biological samples without chemical pretreatment in the general atmospheric pressure environment.