599 results about "Normal functioning" patented technology

Knee prostheses featuring components that more faithfully replicate the structure and function of the human knee joint in order to provide, among other benefits: greater flexion of the knee in a more natural way by promoting or at least accommodating internal tibial rotation in a controlled way, replication of the natural screw home mechanism, and controlled articulation of the tibia and femur respective to each other in a more natural way. In a preferred embodiment, such prostheses include an insert component disposed between a femoral component and a tibial component, the insert component preferably featuring among other things a reversely contoured posterolateral bearing surface that helps impart internal rotation to the tibia as the knee flexes. Other surfaces can also be specially shaped to achieve similar results, preferably using iterative automated techniques that allow testing and iterative design taking into account a manageable set of major forces acting on the knee during normal functioning, together with information that is known about natural knee joint kinetics and kinematics.

A prostatic stent is configured as a unitary body, which is adapted to reside above the sphincter when in position in a subject and allow normal functioning of the sphincter. The stent includes and elongated and substantially narrow conduit, which extends through the sphincter and outside the body of the subject. The conduit is sized and constructed to allow normal operation of the sphincter. The stent also includes and upper and / or an intermediate inflatable portions and may include a second conduit for the introduction of medication to the stent.

Systems and methods are described for the use of floating magnetic elements in medical implants. The magnetic elements within the medical implant are allowed to rotate freely to align with a strong external magnetic field, such as that of an MRI scanner, and align to attract each other during the normal functioning of the medical implant in the absence of a strong external magnetic field.

A process control or safety instrumented system uses function block logic to coordinate the logic within the process control or safety instrumented system with operational states of field devices, even when these operational states are initiated externally to the process control or safety system. Logic within input or voter function blocks associated with field devices may monitor and determine when the associated field devices are being put into testing or calibration modes and may automatically initiate appropriate bypass or override functionality in response to such detected field device configuration states. Likewise, the function block logic may automatically remove the bypass or override functionality when the field devices are placed back into their normal operational configuration states. This automatic initiation of bypasses and overrides helps to prevent a safety system within a process plant from initiating a shut-down procedure as a result of a device test initiated manually by, for example, a hand-held device attached to a field device. Likewise, the automatic removal of bypasses and overrides helps to prevent a safety system within a process plant from failing to operate properly because a user forgot to manually remove a bypass or override that was set up to allow a device test.

A compact, self-contained, self-powered, autonomous, consumer alarm device within the appliance unit utilizing three visual indicator means and one audible indicator means for providing an indication of normal operation and 4 alarm conditions. The alarm device provides visual and / or audible indications in the event 1) the appliance air temperature is normal; thereby, below the maximum temperature as recommended by the USDA for storage of food, 2) the appliance door is open / ajar for more than five minutes, 3) the appliance air temperature is greater than 40 degrees F., the maximum temperature recommended by the USDA for storage of food, 4) the appliance air temperature has been greater than 40 degrees F. for a period of more than 2 hours, thereby surpassing the USDA guidelines for food which should be consumed by humans, 5) the appliance air temperature has been elevated for "X" amount of time, wherein "X" equals the quantity of hours and 6) battery voltage is low. This device retains the temperature alerts until reset, thereby ensuring that the owner is aware of any divergences from safe storage temperatures. These alerts remain even in the event that the appliance unit returns to normal operation and lowers the temperature down to suitable levels, such as in the case of a temporary power outage. Internal batteries provide power to the device.