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Osteogenic fusion device

An interbody osteogenic fusion device is provided that includes opposite end pieces with an integral central element. The end pieces are sized to maintain the height of an intervertebral disc space. The central element has a much smaller diameter so that the osteogenic fusion device forms an annular pocke around the central element. An osteogenic material is disposed within the annular pocket between the opposite end pieces. In one embodiment,the osteogenic material constitutes a collagen sheet soaked in asolution containing a bone morphogenetic protein. The osteogenic fusion device is configured so that the osteogenic material is in direct contact with the adjacent vertebral bone. In addition to the enhanced area of contact between the vertebral bone and the fusion material, the inventive osteogenic fusion device reduces stress-shielding and minimizes the radiopacity of the implant so that growth of the fusion mass can be continuously assessed. In yet another embodiment, the osteogenic fusion device includes at least one end piece with a truncated surface. The osteogenic fusion devices of the present invention may be combined with other fusion devices to form an implant system. The implant system includes at least one load bearing member having a truncated surface configured to nest within another load bearing member, preferably the load bearing, osteogenic fusion device of the present invention. The invention also provides implant systems comprising adjacent load bearing members connected to one another to resist lateral separation. Methods of promoting fusion bone growth in the space between adjacent vertebrae utilizing devices and systems of the invention are also described.
Owner:WARSAW ORTHOPEDIC INC

Three dimensional vector cardiograph and method for detecting and monitoring ischemic events

A method of determining an ischemic event includes the steps of: monitoring and storing an initial electrocardiogram vector signal (x, y, z) of a known non-ischemic condition over the QRS, ST and T wave intervals; calculating and storing a J-point of the vector signal and a maximum magnitude of a signal level over the T wave interval; monitoring a subsequent electrocardiogram vector signal over the QRS, ST and T wave intervals; measuring and storing the magnitude (Mag.) of the vector difference between a subsequent vector signal and the initial vector signal; measuring and storing the angle (Ang.) difference between a subsequent vector and the initial vector at points; regressing a line from points about 25 milliseconds prior to the J point and about 60 milliseconds after the J-point and determining the slope of the regression line and the deviation of the angle difference of the regression line; regressing a line from points about 100 milliseconds prior to the maximum magnitude of the signal level over the T wave interval and determining the slope of the regressing line and the deviation of the angle difference of the regression line; and comparing the slope and deviation of the lines from the J point and the T wave interval to a set of known values to determine the presence of an ischemic event.
Owner:ECG TECH CORP

Method of generating hydrogen in drinking water using an enerceutical product added to magnesium in a hydrogen permeable but solute impermeable container

Consuming water with increased hydrogen content can provide clinical benefits to humans and animals through a non-mitochondria alternative cellular energy (ACE) pathway and also as an antioxidant. This application discloses that the hydrogen content of drinking water can be safely increased by placing into the water a hydrogen generating device, such as a mixture of metallic magnesium and EH-101 (HB-101) containing solution, whereby the device allows for the selective passage of the generated hydrogen but restricts the passage of magnesium and EH-101 (HB-101) components. This partitioning of hydrogen from EH-101 (HB-101) components is achieved by using either reverse osmosis membrane, low density plastic material such as polyvinylidene chloride (PVDC or Saran), or low molecular weight cutoff dialysis membrane to create a sealed container of the magnesium and magnesium chloride, that can be placed into drinkable water. The EH-101 (HB-101) can be initially placed into a breakable inner compartment within the hydrogen permeable container. This compartment can be easily broken by simple squeezing just prior to placing the device into the water that is intended to have its hydrogen content increased. The increased hydrogen content can be assessed by the capacity of the water to decolorize a potassium permanganate test sample.
Owner:MARTIN WILLIAM JOHN

Method of manufacturing liquid ejection head, and image forming apparatus

The method of manufacturing a liquid ejection head comprises the steps of: forming a plurality of piezoelectric elements on a diaphragm; stacking an intermediate plate which includes recess sections for covering the piezoelectric elements and drive wires connected to the piezoelectric elements, on a surface of the diaphragm on which the piezoelectric elements are formed, in such a manner that peripheral spaces are formed around the piezoelectric elements by means of the recess sections and electrical connections are created between the drive wires and the piezoelectric elements; connecting an integrated circuit to end sections of the drive wires which are opposite to connection sections between the drive wires and the piezoelectric elements; forming an actuator function unit by electrically and mechanically bonding the diaphragm, the piezoelectric elements, the drive wires, the intermediate plate and the integrated circuit after the formation of the piezoelectric elements on the diaphragm, the stack of the intermediate plate on the diaphragm, and the connection of the integrated circuit and the drive wires, in such a manner that the piezoelectric elements are electrically driven via the integrated circuit; measuring displacement of the diaphragm by operating the integrated circuit in the actuator function unit; and bonding a flow path forming member to the actuator function unit after the measurement of the displacement of the diaphragm, the flow path forming member being provided for forming a plurality of pressure chambers connected to a plurality of nozzles and forming a common liquid chamber for storing liquid supplied to the pressure chambers.
Owner:FUJIFILM CORP
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