Tech Briefs

Briefs : Medical
Ultra-Miniature Image Sensor

Minimally invasive surgery has increasingly required imaging devices to have the smallest possible dimensions but also deliver high-resolution vision capabilities. There has also been a rising demand for disposable medical devices. With these criteria in mind, in 2004, the first prototype of the NanEye sensor was...

Briefs : Medical
Motion Artifact Extraction Technology for Non-Invasive Blood Pressure Measurement

Non-Invasive Blood Pressure (NIBP) is a widely used vital sign for cardiovascular assessment. Vital signs monitors obtain a non-invasive blood pressure measurement through the use of commercially available OEM blood pressure modules incorporated into their devices....

Briefs : Medical
Corneal Endothelium Delivery Instrument

Corneal endothelial failure is a common cause of corneal transplants. According to the Eye Bank Association of America, transplant tissue distributed for endothelial keratoplasty accounted for 18,221 (43%) of all keratoplasties performed in the US during 2009. Fuchs dystrophy, “other” causes, and...

Briefs : Medical
Software for Image Contrast Enhancement

Whenever images are acquired with a large dynamic range, a problem arises in reproducing these images on a medium (i.e. CRT, paper). There are the restrictions of the recording apparatus (number of reproducible intensity levels, color gamut, and color resolution) as well as environmental factors (flare,...

Briefs : Medical
Highly Sensitive Micro Fluorescence Detector for Bioanalytical Devices

An advanced micro fluorescence detector (microFD) uses a hydrogenated amorphous silicon (a-Si:H) photodiode for high sensitivity biochemical analyses in micro-capillary electrophoresis (microCE) applications, representing an advancement in the field of portable microfluidic...

Briefs : Mechanical & Fluid Systems
Medical Tube Securing Device

The Burn Center, located in the Brooke Army Medical Center, receives approximately 300 burn patients each year. Often, these patients have problems breathing on their own due to scorched esophagi, damaged airways due to smoke inhalation, or organ failures.

Briefs : Medical
CMOS-Based X-Ray Panel Focuses on Low-Dose Applications

In all domains of medical and scientific X-ray imaging, the replacement of film and analog video imaging techniques with a fully digital workflow is underway. The Xineos X-ray panel X-ray CMOS technology delivers three times more sensitivity and five times more signal-to-noise performance...

Briefs : Materials
Biomedical Textile Material Selection and Performance Considerations in Device Design

Biomedical textile structures incorporate a wide array of biocompatible materials, including advanced polymers and metals in a range of sizes and thicknesses with varying material characteristics and performance properties. Promising substrates, now in...

Briefs : Materials
SCAFTEX® Non-Woven Bio-Textile for Implantable Devices

Classic tissue engineering utilizes absorbable non-woven biomedical textiles from a variety of fibers to aid in cell growth and proliferation, and medical device companies rely on these materials for implantable devices that must degrade over time. Non-woven bio-textiles such as SCAFTEX®...

Briefs : Mechanical & Fluid Systems
Stereotactic System for Localizing Intracranial Targets

The CRW® stereotactic system, first released in 1988, was recently updated to focus on decreasing the steps to assemble the system while maintaining ±0.5 mm accuracy. This multi-purpose system is useful for localizing intracranial targets for precisely directing instruments. It is...

Briefs : Photonics/Optics
Microwave Tissue Soldering for Immediate Wound Closure

A novel approach for the immediate sealing of traumatic wounds is under development. A portable microwave generator and handheld antenna are used to seal wounds, binding the edges of the wound together using a biodegradable protein sealant or “solder.” This method could be used for...

Briefs : Medical
CyberKnife® Robotic Radiosurgery System Offers Precise, Customizable Care

In the field of radiation oncology, the CyberKnife® Robotic Radiosurgery System is capable of delivering high doses of radiation with submillimeter accuracy anywhere in the body. The newest addition to the CyberKnife® product line, the CyberKnife® VSITM System,...

Briefs : Medical
3D Constrained Surface Controller for Medical Imaging

To make diagnoses from imaging technologies such as computerized tomography (CT) and magnetic resonance imaging (MRI), radiologists use 2D image planes that slice through these data at a variety of angles to obtain the most clinically informative view. However, current approaches used to...

Briefs : Mechanical & Fluid Systems
Positioning Technology for Digital Displays on Mobile Medical Equipment

As hospitals and surgical centers add more portable medical equipment, the precision and positioning of digital displays become critical to staff efficiency, comfort, and health. Dispensing quality healthcare depends on providers having easy access to the right tools and...

Briefs : Medical
Implantable Contact System for Medical Pulse Generation Devices

An integrated seal and electrical contact system for medical implantable pulse generators (IPGs) has been engineered to help large and small OEMs accelerate the development process, reduce device volume, and improve functionality.

Briefs : Medical
Dynamic Optical Phantom of a Living Body and Method for Producing It

An optical phantom enables dynamic changes in the physiological state of muscles, the brain, and blood flow to be measured. The medical diagnostic and treatment equipment that utilizes light is usually applied in order to establish the location of diseased tissue regions,...

Briefs : Materials
Self-Assembling Hydrophobin Useful for Coating Surfaces

This technology provides isolated polynucleotides comprising a nucleotide sequence encoding a mature thermophillic hydrophobin polypeptide suitable for a recombinant DNA technology production process. This compound self-assembles at interfaces and is applicable to a broad variety of...

Briefs : Imaging
Advanced Data Analysis for Resistance Weld Monitoring

Medical device manufacturers are experiencing an ever-increasing emphasis on process accountability. ADAM (Advanced Data Analysis Monitor) is a technology developed for resistance welding that gives manufacturers the information they need to support process development and production...

Briefs : Medical
GigE-Vision®-Compliant Receivers for the Networked Operating Room

When vision system integrators are designing systems for hospital operating rooms, they have a number of technologies to choose from. The video interfacing technology with which the system will transmit imaging data to PCs or other system elements has traditionally been limited...

Briefs : Medical
Preserving Phase for Bionic Implants by Rearranging a Signal’s Components

Any signal can be decomposed into components of sinusoids. This pioneer technique expands the theory of interchangeability of phase and a shift of time (or a shift of another variable). It faithfully preserves phase information by mathematically rearranging the...

Briefs : Medical
Thermographic Printing Using Organic Silver Salts

The materials presented allow the writing on a single sheet of these materials without ink, but only by heat, thereby revealing a black and white image. This process is called thermographic writing or printing.

Briefs : Medical
Retractor System for Abdominal Surgery

Adjusting abdominal clamps to open up a larger operating field during surgery typically requires the use of two hands: one hand to unscrew the clamp, and the other hand to pull the clamp to increase the operating field. Furthermore, one hand has to retain the clamp in position while the other is used to...

Briefs : Manufacturing & Prototyping
Repeatable, Low-Cost UV Assembly of Biosensors

A biosensor is an analytical device that converts a biological response into an electrical signal. It is increasingly being used as a cost-effective diagnostic tool that offers the capability to render efficient, easy-to-use, and accurate diagnosis. While technological advances in biosensors are...

Briefs : Medical
Tethered Endoscope for Photographing the Esophagus

Conventional endoscopes are the “gold standard” for investigating and evaluating mucosal disease of the esophagus. Free-swimming camera pills are large because they must carry camera, batteries, memory, illumination, and some level of image processing power on board. A typical camera pill...

Briefs : Medical
Isolation of the 'Paenibacillus phoenicis', a Spore-Forming Bacterium

A microorganism was isolated from the surfaces of the cleanroom facility in which the Phoenix lander was assembled. The isolated bacterial strain was subjected to a comprehensive polyphasic analysis to characterize its taxonomic position. Both phenotypic and phylogenetic...

Briefs : Medical
Cell Radiation Experiment System

The cell radiation experiment system (CRES) is a perfused-cell culture apparatus, within which cells from humans or other animals can (1) be maintained in homeostasis while (2) being exposed to ionizing radiation during controlled intervals and (3) being monitored to determine the effects of radiation and the...

Briefs : Imaging
Monolithically Integrated, Mechanically Resilient Carbon-Based Probes for Scanning Probe Microscopy

Scanning probe microscopy (SPM) is an important tool for performing measurements at the nanoscale in imaging bacteria or proteins in biology, as well as in the electronics industry. An essential element of SPM is a sharp, stable tip that possesses...

Briefs : Medical
Ultra-High-Molecular-Weight Polyethylene Technology for Minimally Invasive Devices

Ultra-high-molecular-weight polyethylene (UHMWPE) has been used for decades as a biomaterial in joint replacements. Recently, this technology was refined to serve the needs of minimally invasive surgical applications, particularly cardiovascular implants. UHMWPE...

Briefs : Medical
Circulatory Assist Pump for Implantable Artificial Heart Device

When a patient’s heart disease cannot be treated, heart transplantation is required, but only a few people can receive transplants. These rare opportunities for transplantation have created a demand for artificial hearts.

Briefs : Medical
Modifying Polyethylene Oxide for Melt-Processability

Generally, high-molecular-weight polyethylene oxide (PEO) can present processing challenges due to its high melt viscosity and poor melt drawability; it can be difficult to form into fine-gauge film or small-diameter fibers. There is the alternative technology of solution casting, which has...

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