624results about How to "Minimize formation" patented technology

The invention provides implantable intraluminal medical devices that are fabricated of biodegradable materials. The invention further provides methods of treatment utilizing the devices.

A surgical fastener apparatus, for securing a surgical mesh material to body tissue including a pair of anchors each having a retaining structure formed on an outer surface thereof; and a suture tether interconnecting the pair of anchors to one another. The pair of anchors have a substantially cylindrical body having a conically tapered distal end and a planar proximal end. The retaining structure includes a series of semi-circular angled projections having a planar proximal surface and a tapered distal end, wherein a center of each of the angled projections is spaced a distance from a longitudinal central axis of the body portion. The surgical fastener is made from a bioabsorbable material which reabsorbs into said body tissue at an appropriate rate, such as for example, polyglycolic acid and polylactic acid.

A very high speed injector permits injecting high pressure diesel oil directly into a diesel engine combustion chamber. The very high speed permits almost arbitrary rate shaping, minimizing formation of diesel particulate matter and oxides of nitrogen pollutants. An electrical waveform is pre-determined for a desired fuel injection rate shape. The electrical waveform is converted into a corresponding magnetic field waveform by a solenoid coil. A giant magnetostrictive material (GMM) transduces the magnetic field waveform into a corresponding mechanical waveform. The mechanical waveform positions a valve element to control flow rate. The very high speed features include a thin solenoid coil of relatively few turns, proportionally supplying up to one hundred amperes at up to one hundred volts in no greater than ten microseconds, the GMM is subject to a bias compressive stress magnitude of no less than fourteen megapascals, and the magnetic flux path is minimized and designed to suppress eddy currents.

A sensor is disclosed, for implantation within a blood vessel to monitor a substance in or property of blood. In one embodiment, the sensor detects nitric oxide or a nitric oxide metabolite. In another embodiment, other substances such as glutamate, aspartate, arginine, citrulline, acetylcholine, calcium, potassium, or dopamine are monitored. The sensor may be attached to a support structure such as a stent, guidewire, or catheter. In a further embodiment, a catheter is disclosed that extracts patient fluid to a sensor outside the body for monitoring a substance or property of the patient fluid. Methods are also disclosed.