Tech Briefs

Briefs : Medical
Bioabsorbable Material Textile for Improving In Vivo Device Design

A non-woven absorbable scaffold has been designed for implant devices in orthopedics, cardiology, and general surgery, as well as other in vivo applications. Where classic tissue engineering utilized non-woven textile structures as environments for cell growth, medical device...

Briefs : Medical
Rotary Sensing Technologies for Medical and Robotic Shaft Angle Sensing Applications

Today’s sensor technologies for robotic and medical applications include many devices that have evolved from industrial applications. Because of this general migration, they are not ideally suited to the requirements in new robotic and medical products....

Briefs : Medical
Functional Electrical Stimulation Technique May Improve Neural Implants

Electrical implants that shut down excessive activity in brain cells hold great potential for treating epilepsy and chronic pain. Likewise, devices that enhance neurons’ activity may help restore function to people with nerve damage.

Briefs : Medical
Magnetic Responsive Hydrogel Material Delivery System

Interest in the design of new drug delivery systems focuses on releasing the drug at a controlled rate and desired time. Magnetic nanoparticles (MNPs) have shown great potential for use in biomedicine due to their ability to get close to biological entities such as cells, viruses, proteins,...

Briefs : Medical
Compact Green Disk Laser for Therapy Systems

The JenLas® D2.mini 5/8 W, recently introduced to the U.S. market, offers an output power of up to 8 Watts. Lasers of the JenLas D2 product line work in continuous wave mode, emitting green laser light at 532 nm. The infrared laser light is converted into green laser light by an intracavity frequency...

Briefs : Medical
Implantable Prosthetic Interface Securely Integrates With Bone and Soft Tissue

A main limitation in deployment of prosthetic technology is the integration of the prosthetic device into the body. Using current procedures, effective prosthetic integration often requires 18 months and multiple surgeries. A new technique involves merging tissue...

Briefs : Photonics/Optics
Light Source Enables Endoscope Miniaturization

Physical space constraints continue to impact advanced procedures such as single-incision laparoscopic surgery, robotic-assisted surgery, and other minimally invasive surgical procedures. Additional functionality and instruments are being squeezed through the smallest incisions possible. Available...

Briefs : Medical
Wireless Tags Quickly Provide Details About Orthopedic Implants

Radio-frequency technology that uses human tissue instead of air as a conduit for radio waves is the basis of the first electronic “tag” system designed to track and monitor orthopedic implants. A 2009 RAND Corporation (Europe) technical report found that RFID technology offers...

Briefs : Electronics & Computers
New Thermal Management Strategies for Medical Devices

In an increasing number of medical device applications, thermal issues limit the overall performance and reliability of the system. Basic thermal management strategies such as liquid cold...

Briefs : Medical
Improving Balance Function Using Low Levels of Electrical Stimulation of the Balance Organs

Crewmembers returning from long-duration space flight face significant challenges due to the microgravity-induced inappropriate adaptations in balance/sensorimotor function. The Neuroscience Laboratory at JSC is developing a method based on stochastic...

Briefs : Medical
Guidelines for Thermoplastic Color Control and Change Management

Color is an important factor in many aspects of medical devices, from design to how the device is used and by whom. In 2010, the FDA and regulatory bodies around the world increased their scrutiny of colors as additives in all materials and are paying special attention to the...

Briefs : Medical
SFDC/DHR Interface Systems Add Parametric Data to Support Medical Manufacturers

In this era of ever more stringent FDA oversight and regulations, the responsibility for vigilance falls on medical manufacturers and their manufacturing partners or customers. Those companies that support a “best practices” medical manufacturing environment...

Briefs : Medical
EyeBrain Tracker for Early Diagnosis and Monitoring of Neurological Disease

The EyeBrain Tracker (EBT) is an eyetracking medical device, which uses algorithms to accurately track eye movements for the diagnosis of Parkinson’s disease and multiple sclerosis. The brain uses many different areas to produce eye movements, so if an area of the...

Briefs : Medical
Selecting Magnetic Reed Switches for Medical Devices

Miniaturization of medical devices offers tangible advantages to clinicians and patients alike. Smaller pill cams, for example, are more easily ingested. Likewise, smaller hearing aids are less invasive and therefore more comfortable for the wearer. But before either of these devices — and...

Briefs : Manufacturing & Prototyping
Mobile Video Collaboration Helps Engineers Solve Problems Remotely

The value chain for many medical device manufacturers is increasingly complex, with suppliers or internal factories located across the country or spread around the globe. Often, production line equipment problems, product design flaws, and quality issues occur in locations that...

Briefs : Medical
Nano Sponges for Drug Delivery and Medicinal Applications

This invention is a means of delivering a drug, or payload, to cells using non-covalent associations of the payload with nanoengineered scaffolds; specifically, functionalized single-walled carbon nanotubes (SWNTs) and their derivatives where the payload is effectively sequestered by the...

Briefs : Medical
Self-Locking Fastener Resists Vibration, Heat

Today, engineers are successfully attacking problems from vibrational loosening to joint fatigue with a self-locking fastener called Spiralock, whose effectiveness has been validated in published test studies at leading institutions including MIT, the Goddard Space Flight Center, and British...

Briefs : Photonics/Optics
Optical Manufacturing Guidelines for Medical OEMs

Custom integration of original equipment manufacturer (OEM) products can be complex, particularly for medical device integrators that build diagnostic instruments incorporating numerous optical components. Often, objective lenses, illumination sources, and imaging detectors are assembled and...

Briefs : Medical
Virtual Ultrasound Guidance for Inexperienced Operators

Medical ultrasound or echocardiographic studies are highly operatordependent and generally require lengthy training and internship to perfect. To obtain quality echocardiographic images in remote environments, such as on-orbit, remote guidance of studies has been employed. This technique...

Briefs : Medical
Using Proprietary Solvent Technology to Swell Silicone

While silicone is the obvious material of choice in many medical applications because of its excellent biocompatibility, its physical properties make it challenging to work with. Design engineers, especially those who work with medical devices, know the difficulties of connecting flexible...

Briefs : Medical
Mechanical Components for Demanding Applications

Advanced medical device designs are evolving rapidly and demand higher standards for medical equipment reliability. Applying linear motion components to these medical applications yields the best results when collaboration begins at the early stages of the design. Beginning with specification...

Briefs : Medical
Thin, Absorbent Skin Adhesive

An aging population and accompanying demand for wound dressing and stoma care technologies that provide better treatment than conventional techniques have prompted the medical adhesives industry to produce a new generation of product solutions. One recently proven technology is a highly breathable formulation with...

Briefs : Medical
Quality Control Method for a Micro-Nano-Channel Microfabricated Device

A variety of silicon-fabricated devices is used in medical applications such as drug and cell delivery, and DNA and protein separation and analysis. In applications such as drug delivery from implantable devices, the silicon device structure must have superior precision. In...

Briefs : Medical
Controlling Heat Curing Adhesive Processes Using Infrared Spot Curing

Adhesives are often used as the joining compound between substrates in the medical device industry. Typical applications for adhesives include tube-to-connector bonding, steel-cannula-to-hub bonding, and any other joining process. Adhesives work particularly well in the...

Briefs : Medical
Precise Chemical Etching Method for Diamond Crystal Components

A new method developed at the National Institute of Standards and Technology (NIST) offers a precise way to engineer microscopic cuts in a diamond surface, yielding potential benefits in both measurement and technological fields.*

Briefs : Medical
Wireless Foot Switch Design Considerations

Wireless foot switches for the control of medical devices are gaining acceptance and growing in popularity — prompting OEMs to design medical equipment for use with a wireless foot switch or to accept a wireless foot switch as a pre-sale or post-sale option.

Briefs : Software
Spatially-Invariant Vector Quantization for Image Analysis

Researchers at the University of Michigan Health System and their colleagues have developed a software tool that aims to make the detection of abnormalities in cell and tissue samples faster, more accurate, and more consistent. The technique, known as Spatially-Invariant Vector...

Briefs : Materials
Benefits of Polypropylene Availability

Material selection plays an important role in the design of a medical device or bioprocessing system. It can improve end-user satisfaction, product reliability, and manufacturability of the device, as well as simplify the 510(k) application process. Various certifications such as animal-derivative-free, USP...

Briefs : Medical
Benefits of a Fully Digital Comparator for Inspection of Orthopedic Implants

Manufacturers of orthopedic implants take great care to ensure that their products are of the highest quality. One way they do this is by performing numerous inspection operations at various stages throughout the manufacturing process. These have great value —...

Briefs : Medical
Tryptophan Fluorescence of Ocular Lens Protein for Early Diagnosis of Cataracts

Cataracts are the leading cause of blindness worldwide; they affect more than 20 million people and result in ~1.3 million operations annually in the United States. Current methods of cataract detection are based on subjective observation of lens opacity by Rayleigh...

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