摘要:
A luminous gas discharge display including at least two opposing hermetically sealed plates. At least one of the plates is formed of a transparent material and cooperatively forms with at least one other plate at least one channel. The channel contains an ionizable gas to define a gas discharge path. The display further includes at least one pair of electrodes in communication with the at least one channel. At least one of the electrodes is a flat electrode positioned internally between the plates and includes a conductive material deposited on the channel and extending from the channel to outside the periphery of the display to provide electrical contact between a voltage source and the ionizable gas to produce a gas discharge display.
摘要:
Ultrasonic apparatus and method for coupling ultrasonic energy into intravascular walls to enhance phonophoresis and for dissolution of intravascular blockages. The apparatus includes a radiator for coupling ultrasonic waves and a piezoelectric crystal, connected with said radiator, for the intravascular generation of ultrasonic waves; said ultrasonic waves being propagated along a longitudinal axis of said piezoelectric crystal. The radiator is sized for intravascular insertion. A transmission cable may be provided for transmitting ultrasonic waves from an ultrasonic transducer to the radiator. A seed liquid is introduced proximate the radiator for promoting cavitation of intravascular fluid. In addition, enhancement of dissolution of intravascular blockages and inhibition of restenosis by chemical agents is significantly increased when combined with ultrasonic energy.
摘要:
Ultrasonic apparatus for clot dissolution and plaque ablation includes a radiator for coupling ultrasonic waves into plaque and a piezoelectric crystal, connected with said radiator, for the intravascular generation of ultrasonic waves; said ultrasonic waves being propagated along a longitudinal axis of said piezoelectric crystal and having an inertial node position within said piezoelectric crystal. The piezoelectric crystal is constructed in order to prevent significant power loss caused by a shifting of the inertial node of the generated ultrasonic waves to a position exterior to said piezoelectric crystal due to loading of the radiator-means caused by the coupling of ultrasonic waves into the clot or plaque.
摘要:
A torsional vibration drive for a laser gyro comprises a hub, spokes and an outer rim, with piezoceramics arranged on the spokes. Bending elements provided at the junction of the spokes and rim ensure high flexibility for rotations of the rim around the axis of rotation of the drive.
摘要:
Bumper apparatus for an automotive vehicle, comprises an elongate, hollow housing having opposite ends. The housing is adapted to be mounted adajcent to the end of a motor vehicle. A hinged door is mounted to at least one of the ends of the housing. An elongated container can be received in the housing for sliding in and out of the housing through the end of the housing having the hinged door.
摘要:
A delayed actuator mechanism with visco-elastic timer is provided including a support section and an actuator section mounted to the support section. A compression spring biases the actuator section in a first state and permits the actuator section to be selectively switched to a second state. In that state a cocked torsion spring urges a detent carried by the actuator into engagement with a shoulder of the support section to restrain the actuator section in the second state. A visco-elastic delay mechanism gradually relaxes the torsion spring until the compression spring overcomes the detent shoulder restraint to abruptly switch the actuator section to the first state.
摘要:
Apparatus and methods are provided for utilizing a combination of ultrasonic energy and an echo contrast agent containing microbubbles, for substantially dissolving blood clots or other fistula obstructions. One embodiment of the present invention alternatively utilizes a selected dose of thrombolytic agent in combination with an echo contrast agent, for enhancing the thrombolytic action of a thrombolytic agent and removing a thrombosis from a fistula.
摘要:
Apparatus and methods are provided for utilizing a combination of ultrasonic energy and an echo contrast agent containing microbubbles, for substantially dissolving blood clots or other fistula obstructions. One embodiment of the present invention alternatively utilizes a selected dose of thrombolytic agent in combination with an echo contrast agent, for enhancing the thrombolytic action of a thrombolytic agent and removing a thrombosis from a fistula.
摘要:
Apparatus and methods are provided for utilizing a combination of ultrasonic energy and an echo contrast agent containing microbubbles, for substantially dissolving blood clots or other vascular obstructions. One embodiment of the present invention utilizes a selected dose of thrombolytic agent in combination with an echo contrast agent, for enhancing the thrombolytic action of a thrombolytic agent and removing a thrombosis from a vascular system in less time than the time required by activity of the selected dose of thrombolytic agent without the ultrasonic radiation of the thrombosis.
摘要:
Apparatus and methods are provided for enhancing the thrombolytic action of a thrombolytic agent and removing a thrombosis from a vascular system by introducing a select dose of thrombolytic agent proximate the thrombosis disposed within a vessel of a body and radiating the thrombosis with ultrasound generated exterior to the body to effect removal of the thrombosis in less time than the time required by activity of the selected dose of thrombolytic agent without the ultrasonic radiation of the thrombosis.