Navy Technology Transfer Navy Technology Transfer

Medical and Biotechnology

Adjustable Ergonomic Firearm Grip

Naval Surface Warfare Center, Crane Division

Currently, assault rifle grips are fixed at a specific angle, primarily based on the ability to fire a rifle with the center of mass aligned to the forearm, with little to no wrist movement. The grip angle best accommodates shooting from the hip and a traditional bladed rifle stance. Tactical shooting has led to the development of a squared, or athletic, stance. With the squared stance, the shooter’s shoulders are squared-up with the target, the buttstock of the rifle is near the centerline of the body and high up on the chest, and elbows are kept down and tucked in. With current rifle grips, this stance results in ulnar deviation of the wrist causing wrist fatigue and injury. Naval Surface Warfare Center, Crane Division, has designed, developed, and patented an adjustable ergonomic rifle grip that allows the grip angle to be modified to accommodate different shooting stances. By rotating the grip, wrist fatigue and injury can be minimized by allowing the shooter to hold the weapon at, or closer to, the natural wrist position. Additionally, the rotatable grip can be folded up to the body of the firearm to make it more compact for concealment or storage.

Bio Laser Printer

Naval Research Laboratory

The Naval Research Laboratory has developed the biological laser printer, or BioLP, a non-contact, orifice free bioprinter with the demonstrated ability to create micron-scale patterns of living mammalian cells and biomaterials. Three-dimensional cellular patterns can be routinely created with single-cell resolution and no deleterious effects to the printed cells. These technologies have direct application to tissue engineering by enabling the direct and controlled deposition of living mammalian cells in both two-dimensional and three-dimensional patterns with micron-scale resolution, opening the possibility to bio-fabricate tissue and cellular structures. Applications for the technology include: creation of engineered tissues and organs with the potential to provide replacements for diseased or damaged organs, solving the shortage of donor organs; and high throughput in vitro engineered tissues (blood-brain-barrier, liver, lung, gastrointestinal, etc.) for drug discovery and/or toxicity screening.

Membrane Pump for Synthetic Muscle Actuation

Naval Undersea Warfare Center, Division Newport

A synthetic muscle comprises an outer layer having an interior filled with a proton containing electrolyte. A first electrode extends into the interior and a second electrode extends through the interior. The second electrode is attached to the outer layer at two locations. An ion selective microporous membrane extends through the interior along the length of the second electrode and is also attached to the outer layer at the two locations. The ion selective membrane is also attached to the second electrode at a plurality of points along its length, defining a plurality of pockets of the ion selective membrane. The ion selective membrane is generally disposed between the two electrodes. The two electrodes are in communication through a power source. Using the power source, an electroosmotic flow is established across the ion exchange membrane from the first electrode to the second electrode, inflating the pockets and constricting the outer layer.

Microtiter Plate Lid to Mitigate Cell Distribution Bias from Meniscus Edge

Naval Surface Warfare Center, Dahlgren Division

This technology provides a series of microtiter plate lid assemblies that are designed to address issues of inhomogeneity for microtiter plate experiments. The use of multiwall tissue
culture plates, or microtiter plates, is ubiquitous in biological and pharmaceutical research. An assumption of microtiter plate experiments is that each well of a plate represents a homogeneous environment. Chemistry between the solution and the wall of multiwall tissue culture plates has been demonstrated to lead to inhomogeneous sedimentation of biological particles (via a meniscus effect). This challenges the homogeneous assumption for current microtiter plate experiments. By eliminating the meniscus, this technology is able to eliminate the inhomogeneous sedimentation of biological particles, thus providing homogeneity.

Radio Frequency Radiation Using Fractal Dipole Antennas for Medical Use

Naval Surface Warfare Center, Crane Division

Naval Surface Warfare Center, Crane Division has developed a patented suite of fractal dipole antenna technology with applications in a variety of fields including communications and medical treatments. The medical application focuses on radio frequency (RF) radiation that targets a tumor in a situation where if the power and frequency desired at the target were to be directly transmitted to the tumor it would damage intervening tissue between the antenna and the tumor. This is resolved by decomposing the desired RF signal using wavelets and transmitting each decomposed wavelet element from a different antenna at a different vector. Each element sums together at the target to recreate the original desired RF signal. The high-power, high-frequency signal only exists at the tumor and all the intervening tissue is exposed to lower-power, lower-frequency elements. Tumor cells increase intake of chemotherapy drugs when radiated with certain RF energy signals, but this will allow using lower doses of chemotherapy drugs for the entire body while maintaining the high dose in the tumor cell. Some tumors can be eliminated directly from exposure to the RF radiation without the use of chemotherapy drugs.

Rope Climbing Machine for Exercise and Strength

Naval Surface Warfare Center, Crane Division

Traditional rope climbing requires 20 feet or more of height to provide any real exercise or training when climbing. Often it is not practical to install a rope in a gym or training facility due to ceiling heights and safety hazards without harnesses and safety lines. Naval Surface Warfare Center, Crane Division has developed and patented a rope climbing machine with a continuous rope and a variable braking system that can be used for fully suspended rope climbing technique practice and exercise. The machine can be used in a room with standard ceiling heights and the variable braking system allows the speed to be customized for individual users.