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Force Feedback Modulated Joint Control for Prosthetic Ankle

Prosthesis automatically adjusts gait, incline, and heel height. Human gait is an infinitely variable and complex feedback system to maximize efficiency and stability in movement. Typical prosthetic technology utilizes fixed springs to maximize energy return but do nothing to adapt to the variable environment experienced by users. The Magellan microprocessor foot/ankle (MFA) system, developed by Orthocare Innovations, utilizes sophisticated, patented control schemes based on real-time force feedback loops to increase efficiency and optimize a real world gait.

Posted in: Bio-Medical, Manufacturing & Prototyping, Implants & Prosthetics, Biosensors, Mechanical Components, Medical, Briefs, MDB

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Improved Cell Culture Method for Growing Contracting Skeletal Muscle Models

This method has great potential for biomedical research and medical treatment. An improved method for culturing immature muscle cells (myoblasts) into a mature skeletal muscle overcomes some of the notable limitations of prior culture methods. The development of the method is a major advance in tissue engineering in that, for the first time, a cellbased model spontaneously fuses and differentiates into masses of highly aligned, contracting myotubes. This method enables (1) the construction of improved two-dimensional (monolayer) skeletal muscle test beds; (2) development of contracting three-dimensional tissue models; and (3) improved transplantable tissues for biomedical and regenerative medicine applications. With adaptation, this method also offers potential application for production of other tissue types (i.e., bone and cardiac) from corresponding precursor cells.

Posted in: Bio-Medical, Medical, Briefs

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Hand-Based Biometric Analysis

Hand-based biometric analysis systems and techniques provide robust handbased identification and verification. An image of a hand is obtained, which is then segmented into a palm region and separate finger regions. Acquisition of the image is performed without requiring particular orientation or placement restrictions. Segmentation is performed without the use of reference points on the images. Each segment is analyzed by calculating a set of Zernike moment descriptors for the segment.

Posted in: Bio-Medical, Medical, Briefs

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The Next Generation of Cold Immersion Dry Suit Design Evolution for Hypothermia Prevention

The system design recovers warm exhaled air and re-circulates it inside the suit. A body at sea is vulnerable to hypothermia, which often leads to loss of life. Hypothermia is caused by the differences between the core body temperature and the surrounding air and seawater temperatures. The greater the differences between the body core temperature and the sea temperature, the more rapidly the core body temperature will drop, and hypothermia can quickly set in. Heat loss is primarily caused by conduction of heat away from the body. Most cold immersion suits on the market are passive designs that only insulate the body against the cold, although some cold immersion suits use special materials such as paraffin to absorb heat and to radiate the heat back to the body. This new utility patent is an active design that relies on the lung’s role as an organic heat exchanger for providing deep body core heating of air. It is based on the fact that the greatest heat loss mechanism for an insulated human body immersed in a cold water environment is due to heat loss through respiration.

Posted in: Bio-Medical, Medical, Briefs, TSP

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Managing Post-Traumatic Pain with Ultrasound Neuromodulation

This ultrasound technique is an alternative to narcotics for treating pain from acute trauma. The objective of this effort was to demonstrate the feasibility of using ultrasound induced neuromodulation (UNMOD) to manage pain. Pain management for acute trauma is generally accomplished with narcotics, which is less than ideal in a battlefield scenario. The technology of peripheral ultrasound neuromodulation (PUNMOD) offers several advantages over narcotics and current methods of neurostimulation. PUNMOD has the potential to be highly portable as a battlefield analgesic, and has the advantage of leaving the patient’s cognitive abilities intact. In addition, PUNMOD does not carry with it the risk of abuse or the need for the surveillance that is associated with pharmaceutical analgesics.

Posted in: Bio-Medical, Electronics, Treatment Devices, Medical, Drug Delivery & Fluid Handling, Briefs, MDB

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Environmental Awareness Leads to PVC-Free Assemblies

Totally PVC-free products provide an environmentally safer alternative. Over the last several years, the medical industry has become more aware of the toxic side effects of polyvinyl chloride (PVC). The American Public Health Association passed a resolution in November 2011 urging hospitals, schools, and nursing homes to reduce the amount of PVC they use.

Posted in: Bio-Medical, Manufacturing & Prototyping, Custom & Contract Manufacturing, Materials / Adhesives / Coatings, Materials, Plastics, Medical, Briefs, MDB

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Prosthetic Foot Uses Unique Aerospace Material

A new space-age material creates a prosthetic foot that’s built to last. Formerly used only in the aerospace arena, Flexeon is a radical departure from the rigid carbon fiber materials found in most prosthetic feet. It’s a specially- formulated reinforced fiberglass material that is nearly indestructible, extremely flexible, and available exclusively on Ability Dynamic prosthetic devices, such as the RUSH™ foot. Flexeon underwent thorough and extensive testing for flexibility, material strength, and durability in prosthetic labs, as well as on patients aged 21 to 69 in clinical trials. The results of these tests and trials revealed that this high-tech material is three times more flexible than carbon and much more durable than current standard carbon fiber products.

Posted in: Bio-Medical, Manufacturing & Prototyping, Implants & Prosthetics, Materials / Adhesives / Coatings, Materials, Composites, Plastics, Medical, Briefs, MDB

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