920results about How to "Increase thrust" patented technology

A system for percutaneously introducing a prosthetic valve into a patient's vasculature comprises a balloon dilatation catheter, a prosthetic valve mounted coaxial to the dilatation balloon, and a pusher member comprising a longitudinally extending tubular member encompassing the shaft of the catheter. The distal end of the pusher member preferably corresponds to the proximal end of the stent component of the prosthetic valve. The pusher member provides enhanced longitudinal pushability for facilitating advancement of the prosthetic valve to a treatment site. The system is well-suited for advancing a prosthetic valve or other medical device through an introducer sheath having a relatively small inner diameter. The introducer sheath may be formed with a tapered proximal end portion for receiving the prosthetic valve and for reducing a diameter of the prosthetic valve during advancement therethrough.

The invention provides an image-guided medical instrument that utilizes a tracking device to track the location of at least a portion of the instrument on at least one image of a patient's anatomy. The instrument may include a handle having an operating element, an elongated flexible body member connected to the handle, wherein the body member includes a lumen, a transmission element housed within the lumen of the body member, and a treatment apparatus connected to end of the transmission element, wherein actuation of the operating element actuates the treatment apparatus via the transmission element. The body member also includes at least one sensor element that is utilized by the tracking device to determine position information regarding the treatment apparatus that is used to display the location of the treatment apparatus on the at least one image of the patient's anatomy.

Space-occupying devices for treating voids within the body are disclosed. The devices can have multiple elements connected to a flexible leader. The devices can be coated by a binding agent. The devices can also be fillable. Methods of making and using the devices are also disclosed.

Space-occupying devices for treating voids within the body are disclosed. The devices can have multiple elements connected to a flexible leader. The devices can be coated by a binding agent. The devices can also be fillable. Methods of making and using the devices are also disclosed.

A blade for a wind turbine includes a device for causing air at an increased velocity and / or pressure to escape from exit openings in the blade, thereby to apply a force. Pressure and diameter adjustable valves may be provided at each exit opening or orifice to allow the air to exit from the blade only when the air pressure within the blade exceeds a preset level. Also disclosed is the provision of valves at the exit openings or orifices on an opposite edge of the blade that allows air to escape from the blade to slow down but not stop rotation of the blade when a dangerous wind condition is detected.

A fixed-wing VTOL aircraft features an array of electric lift fans distributed over the surface of the aircraft. A generator is (selectively) coupled to the gas turbine engine of the aircraft. During VTOL operation of the aircraft, the engine drives the generator to generate electricity to power the lifting fans. Power to the lifting fans is reduced as the aircraft gains forward speed and is increasingly supported by the wings.

The present invention relates to a method of thermal treatment of thermally responsive material wherein areas in or on the material to be thermally treated are defined and thermal energy is inputted on or into the defined areas in order to change / influence the material characteristics. The present invention further relates to medical devices or parts thereof manufactured at least in part from thermally responsive material by a process comprising at least one step of thermal treatment of this thermally responsive material.

Microcatheters catheters are provided having balloons incorporating radiopaque nanoparticles. Optionally, carbon nanotubes dispersed within the shaft may be configured to react to electrical stimulation, thereby providing a steerable distal end region on the microcatheter. Methods of making the foregoing microcatheters also are provided.

The present document describes a pressure guidewire comprising: a shaft tube with a proximal section; a middle section extending from the proximal section of the shaft tube, the middle section having greater flexibility than the proximal section; an inner hypotube installed substantially within the middle section for optimal mechanical properties; a pressure sensor with a communication means routed through the middle section and the proximal section; and a sensor housing for receiving the pressure sensor. There are also described methods for joining the inner hypotube to the shaft tube.

A normally closed solenoid valve includes a fixed core, a valve portion including a valve seat and a valve body, a movable core disposed between the fixed core and the valve seat, a resilient biasing member for biasing the movable core in a valve-closing direction and a coil. When energized, the coil generates an attracting force between the movable core and the fixed core against a biasing force by the resilient biasing member to cause the movable core to retreat from an initial position where the valve seat is in a closed state. When a characteristic graph line of spacing distance / attracting force that defines the attracting force in relation with a spacing distance between the fixed core and the movable core provides an inclination A (N / mm) at the initial position, the compression resiliency coefficient of the resilient biasing member is set to A (N / mm).