5466results about How to "Enhanced coupling" patented technology

A two-component fluid dispenser which can accurately mix two liquids of varying viscosity and then precisely deliver the mixture formed in discrete amounts. The mixture of the two components is delivered from a single delivery tube in a manner such that none of the mixture remains within the delivery tube at the completion of each mixing and delivery cycle. In one form of the apparatus, the single delivery tube of the apparatus is operably coupled with conventional hypodermic syringes of various sizes so that different fluids can be mixed in different ratios.

A medical procedure utilizes a high-intensity focused ultrasound instrument having an applicator surface, a liquid-containing bolus or expandable chamber acting as a heat sink, and a source of ultrasonic vibrations, the applicator surface being a surface of a flexible wall of the bolus, the source of ultrasonic vibrations being in operative contact with the bolus. The applicator surface is placed in contact with an organ surface of a patient, the source is energized to produce ultrasonic vibrations focused at a predetermined focal region inside the organ, and a temperature of liquid in the bolus is controlled while the applicator surface is in contact with the organ surface to control temperature elevation in tissues of the organ between the focal region and the organ surface to necrose the tissues to within a desired distance from the organ surface.

Embodiments of the invention disclose a method and a system configured to transfer energy wirelessly, comprising: a source configured to generate evanescent waves, in response to receiving the energy, on at least part of a surface of the source; a sink configured to receive the energy wirelessly from the source via a coupling of the at least part of the evanescent waves; and a load configured to receive the energy from the sink, wherein the load and the sink are configured to move along the surface of the source such that the at least a part of the evanescent waves are coupled between the source and the sink within an energy transfer area.

A floating gate flash memory device including a substrate comprising a source region, a drain region, and a channel region positioned therebetween; a floating gate electrode positioned above the channel region and separated from the channel region by a tunnel dielectric material layer; and a control gate electrode positioned above the floating gate electrode and separated from the floating gate electrode by an interpoly dielectric layer, the interpoly dielectric layer comprising a modified ONO structure having a bottom dielectric material layer adjacent to the floating gate electrode, a top dielectric material layer adjacent to the control gate electrode, and a center layer comprising a nitride and positioned between the bottom dielectric material layer and the top dielectric material layer, in which the tunnel dielectric material layer, and at least one of the bottom dielectric material layer and the top dielectric material layer, comprise a high-K dielectric material.

A spinal stabilization system may be formed in a patient. In some embodiments, a minimally invasive procedure may be used to form a spinal stabilization system in a patient. Bone fastener assemblies may be coupled to vertebrae. Each bone fastener assembly may include a bone fastener and a collar. Extenders may be coupled to the collar to allow for formation of the spinal stabilization system through a small skin incision. The extenders may allow for alignment of the collars to facilitate insertion of an elongated member in the collars. An elongated member may be positioned in the collars and a closure member may be used to secure the elongated member to the collars. An adjuster may be used in conjunction with the extenders to change a separation distance between the bone fastener assemblies.

Opto-electrical systems having electrical and optical interconnections formed in thin layers are disclosed. In one set of preferred embodiments, optical signals are conveyed between layers by respective vertical optical couplers disposed on the layers. In other preferred embodiments, optical signals are conveyed by stack optical waveguide coupling means. Yet other preferred embodiments have electrical via means formed in one or more layers to covey electrical signals between two or more layers.

A transcutaneous recharging system for providing power to an implantable medical device comprises a primary side circuit for transmitting power in the form of magnetic flux; and a secondary side circuit integral to the implantable medical device for receiving the power transmitted from the primary side circuit and for providing the received power to recharge a battery in the implantable medical device, wherein the primary and secondary side circuits are not physically coupled. A variety of attachment configurations are disclosed for attaching and shielding the secondary circuit directly onto the housing of the implantable medical device, inclusive of flexible printed circuit coils and wire coils recessed into helical notches.

An inductive power transfer system (1) comprises a primary unit (10) operable to generate an electromagnetic field and at least one secondary device (30), separable from the primary unit, and adapted to couple with the field when the secondary device is in proximity to the primary unit so that power can be received inductively by the secondary device from the primary unit without direct electrical conductive contacts therebetween. The system detects if there is a substantial difference between, on the one hand, a power drawn from the primary unit and, on the other hand, a power required by the secondary device or, if there is more than one secondary device, a combined power required by the secondary devices. Following such detection, the system restricts or stops the inductive power supply from the primary unit. Such a system can detect the presence of unwanted parasitic loads in the vicinity of the primary unit reliably.

Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter includes an elongate flexible catheter body with one or more lumens. An ultrasound transmission member or wire extends longitudinally through the catheter body lumen and, in many embodiments, a guide wire tube also extends through the same lumen. A distal head is fixed to or otherwise mechanically coupled with the distal end of the ultrasound transmission member or wire and is positioned adjacent the distal end of the catheter body. Although the distal end of the catheter body overlaps the distal head, the distal head is not directly affixed to the distal end of the catheter body. Thus, the distal tip may move freely, relative to the distal end of the catheter body when ultrasonic energy is applied through the ultrasound transmission member. Such a freely floating distal head enhances the efficiency of an ultrasound catheter, enabling the catheter to ablate calcific occlusions and increasing the useful life of the ultrasound transmission member and catheter.

A radio frequency (RF) coaxial resonator feeding a saltshaker-like gas distributing electrode assembly forms a capacitively coupled plasma source. This apparatus can generate plasma of high density over a wide pressure range and large process window. The system may be used as a remote radical-rich plasma source for materials surface processing.