Abstract: A bone fixation system includes a fixation device configured to be positioned at a target area of bone comprising two ends connected by a shaft and further comprising a bore formed through the shaft configured to receive a fixation screw. The system further includes a drill bit sized and configured to pass through the bore to prepare the surrounding bone to receive a second fixation device. At least a distal portion of the drill bit is configured to pass through the bore. The fixation device is made of a first material and wherein the distal portion of the drill bit comprises at least an outer portion made of a second material. The second material of the drill bit has a hardness that is less than the hardness of the first material of the fixation device.

Abstract: A method of preparing a bone to receive a fixation screw through a fixation device includes providing a drill bit sized and configured to pass through a bore in a fixation device positioned in the bone and drilling a passage into the bone and through the bore. At least a distal portion of the drill bit passes through the bore in the drilling step. At least an outer portion of the distal portion of the drill bit has a hardness that is less than a hardness of the fixation nail.

Abstract: A system for treating a bone includes an insert for a bone screw or a fixation nail. The insert includes a shaft that extends between proximal and distal ends of the insert and a cap. The shaft includes an opening in the proximal end and a cannulation extending from the opening through at least a portion of the shaft. The shaft further includes a fenestration disposed along the cannulation such that the cannulation is configured to provide a pathway for a substance between the opening and the fenestration. The cap is fastened to and seals the opening in the proximal end of the shaft and adjoins the cannulation. The cap is configured to provide a needle access through the cap to the cannulation following implantation of the system within the bone, and is further configured to self-seal after the needle is removed.

Abstract: An archery bow for selectively firing multiple projectiles one at a time and having riser with first and second ends and limb arrangements fixed relative thereto with a bow string is joined therebetween, the bow having a drum housing and a selectively rotatable drum rotatably secured relative to the housing, the drum being rotatable about a drum axis and having a projectile openings circumferentially spaced about the drum axis, each of the projectile openings shaped to receive a projectile wherein a plurality of projectiles can be secured in the drum at one time, one of the projectile openings being in a firing position and supporting a projectile to be fired by the bow, the remaining projectile openings being spaced from the firing position to reduce interference with the projectile to be fired, the drum having a rotation mechanism to rotate each of openings into the firing position individually, the bow further including a shooting force mechanism to selectively propel the projectiles.

Abstract: A method of preparing a bone to receive a fixation screw through a fixation device includes providing a drill bit sized and configured to pass through a bore in a fixation device positioned in the bone and drilling a passage into the bone and through the bore. At least a distal portion of the drill bit passes through the bore in the drilling step. At least an outer portion of the distal portion of the drill bit has a hardness that is less than a hardness of the fixation nail.

Abstract: A method of preparing a bone to receive a fixation screw through a fixation device includes providing a drill bit sized and configured to pass through a bore in a fixation device positioned in the bone and drilling a passage into the bone and through the bore. At least a distal portion of the drill bit passes through the bore in the drilling step. At least an outer portion of the distal portion of the drill bit has a hardness that is less than a hardness of the fixation nail.

Abstract: A transparent armor structure includes a layer having a first planar surface and a second planar surface of substantially the same configuration as the first planar surface. The second planar surface is located opposite the first planar surface and oriented such that it is not parallel to the first planar surface and such that corresponding locations on the first and second planar surfaces are displaced approximately 90 degrees from each other.

Abstract: An apparatus and method for packing products includes a dunnage product. The dunnage product includes a bracket engageable with a shipping container, a shaft connected to the bracket, and a number of elongated flexible members movable along the shaft. The elongated flexible members can be placed between the manufactured products during the packing process. The dunnage product is preferably reusable.

Abstract: A method of mixing and delivering a substance to a bone includes providing a compressible tube having a reservoir and using a mixing apparatus to mix a particulate solid and a mixing liquid to form the substance within the reservoir of the compressible tube. The method further includes using a compressing device to move the substance through an exit port in the compressible tube for delivery to the bone. The compressing device may be positioned on the compressible tube and the method may further include moving the compressing device along the compressible tube to empty the substance from the compressible tube. The substance may be a bone void filler, and the substance may be delivered from the exit port in the tube through a delivery apparatus, such as a cannula, to a target portion of the anatomy.

Abstract: A method of preparing a bone to receive a fixation screw through a fixation device includes providing a drill bit sized and configured to pass through a bore in a fixation device positioned in the bone and drilling a passage into the bone and through the bore. At least a distal portion of the drill bit passes through the bore in the drilling step. At least an outer portion of the distal portion of the drill bit has a hardness that is less than a hardness of the fixation nail.

Abstract: A system for delivering fluid to a space between two vertebrae is provided. The system includes a tool and an insert configured to be implanted in the space between two vertebrae. The tool includes a proximal end, a distal end and a structure at the distal end configured to be coupled to the insert. The tool further includes a first opening located near the proximal end of the tool, a second opening located near the distal end of the tool, and a passage extending between the first opening and the second opening. The first opening, the passage and the second opening provide a fluid delivery path from the proximal end to the exterior of the tool near the distal end. The second opening is positioned relative to the structure such that fluid is permitted to be delivered from the tool directly into the space between the two vertebrae.

Abstract: A loading device for incorporation into a vehicle, such as an ambulance, for loading and unloading a stretcher. The loading device has a retracted configuration and an extended configuration. The loading device being predisposed to the extended configuration. The loading device may include a hoist assembly to counteract the predisposition to the extended position and move the loading device to the retracted configuration.

Abstract: The present disclosure is directed to concentrating sunlight. In some implementations, a concentrator includes a plurality of reflector support structures and a plurality of reflector segments associated with each reflector support structure. Each reflector support structure formed to include a curved surface that receives an associated reflector segment and a bottom portion that distributes the weight of the reflector segment along a surface area. Each reflector segment includes a reflecting surface adjacent a flexible element such that the reflecting surface reflects incident sunlight light. In some examples, the reflector support structures may comprise a light weight material such as a polyurethane and/or the reflecting surface may be 5 mils or less.

Abstract: A system for communicating fluid to or from a bone includes an insert. The insert includes a shaft extending between proximal and distal ends of the insert, a fenestration, and an expandable portion coupled to the shaft. The shaft is cannulated along at least a portion of the shaft between the proximal and distal ends. The fenestration is disposed along the cannulated portion of the shaft. Outer surfaces of the expandable portion are configured to expand laterally outward to increase the cross-sectional area of the expandable portion orthogonal to the shaft.

Abstract: The present disclosure is directed to generating hydrogen using thermal energy. In some implementations, a method includes concentrating solar energy on an absorption element to heat the absorption element to about 2,000° C. or greater. The absorption element is in thermal contact with a reservoir of water. The water is at a pressure of, for example, approximately 760 Torr or less, and at least a portion of the water disassociates based on heat from the absorption element. The hydrogen and the oxygen are rapidly cooled to substantially avoid recombination. After cooling, the hydrogen gas and oxygen gas are pressurized and then separated using a size-selective membrane.

Abstract: Bone screws and inserts disposed therein or thereon are provided for the delivery of medicants to bone. The bone screws provide a method to strengthen or repair damaged bones, or to promote bony fusion, and in conjunction with the inserts, provide a method of delivering a continuous or regulated amount of medicant to a desired location within the bone such as a fracture interface. In one embodiment, the inserts are customized in size, shape, or configuration after the bone screw has been inserted into the patient.