Abstract: A system includes memory, and processing circuitry coupled to the memory, the processing circuitry configured to: determine at least one of: a cross-electrical signal measurement at a first electrode on a first lead implanted within a tongue of the patient based on a stimulation signal between a second electrode on the first lead or a second lead implanted within the tongue of the patient and a third electrode, or a strain measurement of at least one of the first lead or the second lead. The processing circuitry is configured to determine movement of the tongue based on at least one of the cross-electrical signal measurement or the strain measurement, and generate information indicative of the movement of the tongue.

Abstract: A resin including up to 99.99 weight percent (wt. %) of a first polyolefin grafted with a functional group selected from an ethylenically unsaturated carboxylic acid, a carboxylic acid anhydride, an ester functional group or a combination thereof; and 0.01 to 3.0 wt. % of a tin oxide-based catalyst, where the resin includes 0.2 wt. % to 1.5 wt. % of the functional group from the first polyolefin, the wt. % based on a total weight of the resin. The first polyolefin can be selected from a polyethylene, a polypropylene, an ethylene/alpha-olefin copolymer, a propylene/alpha-olefin copolymer and combinations thereof. The tin oxide-based catalyst can be selected from dibutyltin oxide, dioctyltin oxide and combinations thereof. The resin can be used in a multilayer structure, where a Layer A comprises the resin and a Layer B comprises a polyester, where a first major surface of Layer A is in adhering contact with the second major surface of Layer B.

Abstract: A percutaneous surgical instrument for de-bulking calculi or drilling bone includes an actuator for generating vibrations at ultrasonic frequencies and a horn coupled to said actuator for amplifying the actuator vibration. A fixed probe is attached to said horn for engaging the calculi and introducing the ultrasonic frequencies thereto. A floating probe is disposed concentric to and under said fixed probe and slidable thereover. A free mass is disposed between the horn and the floating probe for oscillating therebetween, in response to actuator vibration, for causing low frequency impact with the calculi.

Abstract: A percutaneous surgical instrument for de-bulking calculi or drilling bone includes an actuator for generating vibrations at ultrasonic frequencies and a horn coupled to said actuator for amplifying the actuator vibration. A fixed probe is attached to said horn for engaging the calculi and introducing the ultrasonic frequencies thereto. A floating probe is disposed concentric to and over said fixed probe and slidable thereover. A free mass is disposed between the horn and the floating probe for oscillating therebetween, in response to actuator vibration, for causing low frequency impact with the calculi.

Abstract: Apparatus for probing, sensing, testing penetrating and sampling a medium generally includes an actuator (12) for generating vibrations at ultrasonic frequencies and a horn (14) coupled to the actuator (12) for amplifying the actuator vibrations along with a non-rotating coring and drilling bit (16) for penetrating the medium. A bit (16) includes a drill stem (20) attached to the horn (14) and a bore (26) extends through the bit (16), horn (14) and actuator (12) for withdrawal of samples. A free mass (36) is disposed between the horn (14) and the drill stem (20) for oscillating therebetween in response to the actuator vibration for causing migration of medium debris around and through the actuator bore for effectively self-cleaning of the bit (16). The hammering action of the free mass (36) is used for penetration of the medium and for analysis of the medium though the use of spaced apart accelerometers (92 and 94).

Abstract: A percutaneous surgical instrument for de-bulking calculi or drilling bone includes an actuator for generating vibrations at ultrasonic frequencies and a horn coupled to said actuator for amplifying the actuator vibration. A fixed probe is attached to said horn for engaging the calculi and introducing the ultrasonic frequencies thereto. A floating probe is disposed concentric to and over said fixed probe and slidable thereover. A free mass is disposed between the horn and the floating probe for oscillating therebetween, in response to actuator vibration, for causing low frequency impact with the calculi.

Abstract: The present invention provides a design of a horn for vibration actuators. In general a driving actuator generates vibrations and a horn amplifies the vibration amplitude where the amplification is related to the ratio between the surface area of the horn at the contact with the actuator and the tip surface. The acoustic path of existing direct horn designs is modified to adopt at least one change in direction, or fold, so as to produce a compact design Preferably there are three parallel, concentric, acoustic paths and two folds. A second embodiment has an internal horn that is concentric and internal to the actuator. A third embodiment uses a tubular horn where an electroactive stack is encircled by the horn. The device may have a hollow core for the transfer of materials from one side to the other.

Abstract: Acute care method and apparatus for treating a patient experiencing thrombotic vascular occlusion includes introducing a selected dose of an active agent proximate a vascular occlusion in the patient in order to lyse the vascular occlusion and radiating the vascular occlusion and active agent.

Abstract: Apparatus for probing, sensing, testing penetrating and sampling a medium generally includes an actuator (12) for generating vibrations at ultrasonic frequencies and a horn (14) coupled to the actuator (12) for amplifying the actuator vibrations along with a non-rotating coring and drilling bit (16) for penetrating the medium. A bit (16) includes a drill stem (20) attached to the horn (14) and a bore (26) extends through the bit (16), horn (14) and actuator (12) for withdrawal of samples. A free mass (36) is disposed between the horn (14) and the drill stem (20) for oscillating therebetween in response to the actuator vibration for causing migration of medium debris around and through the actuator bore for effectively self-cleaning of the bit (16). The hammering action of the free mass (36) is used for penetration of the medium and for analysis of the medium though the use of spaced apart accelerometers (92 and 94).

Abstract: Acute care method and apparatus for treating a patient experiencing thrombotic vascular occlusion includes introducing a selected dose of an active agent proximate a vascular occlusion in the patient in order to lyse the vascular occlusion and radiating the vascular occlusion and active agent.

Abstract: Acute care method and apparatus for treating a patient experiencing thrombotic vascular occlusion includes introducing a selected dose of an active agent proximate a vascular occlusion in the patient in order to lyse the vascular occlusion and radiating the vascular occlusion and active agent.

Abstract: An arm assembly for supporting a surgical lighthead of a surgical light apparatus. The arm assembly includes a first arm and a second arm pivotally coupled to the first arm about a main pivot axis. A rod extends within an interior region of the second arm. A link is coupled to the rod to the first arm for pivoting movement about a link pivot axis that is spaced apart from the main pivot axis. A spring extends within the interior region of the second arm. The spring exerts a force on the rod and the link to counterbalance the surgical lighthead. A space filler includes an outer cover coupled to the first arm and formed to include a first slot and an inner cover nested within the outer cover and formed to include a second slot.

Abstract: Apparatus and method is provided for enhancing the action of anti-cancer agents, which includes the introduction of anti-cancer agent into or proximate a tumor within a body and thereafter introducing ultrasonic energy at the solid tumor with the introduced anti-cancer agent. The ultrasonic energy is sufficient to increase the anti-cancer activity on the solid tumor without significant heating of the solid tumor or surrounding tissue.

Abstract: Apparatus and method is provided for enhancing the action of anti-cancer agents, which includes the introduction of anti-cancer agent into or proximate a tumor within a body and thereafter introducing ultrasonic energy at the solid tumor with the introduced anti-cancer agent. The ultrasonic energy is sufficient to increase the anti-cancer activity on the solid tumor without significant heating of the solid tumor or surrounding tissue.

Abstract: A surgical lighthead is provided with an outer cover, an inner reflective component, and handles disposed in recesses in the outer cover. The handles do not extend substantially beyond the outer surface of the outer cover. The recesses in the outer cover are spaced apart from the inner component. The handles and recesses are formed by multi-component handle assemblies shrink fit to eliminate gaps in the seams between the components.

Abstract: A multiple transducer assembly and method for coupling ultrasonic energy to a body for thrombolysis of vascular thrombi is provided. The assembly includes a catalytic transducer apparatus including a plurality of transducers for transmitting ultrasound into a medical target transcutaneously. Each transducer includes a front mass having structure which optimizes the transmission of ultrasound into the body. The transducers may share a common front mass. A reservoir for containing a cooling conductive medium between the front mass and the body surface is provided, and is contained within the housing. In addition, the catalytic transducer includes an irrigation manifold, disposed through a center of the front mass, for directing the medium into the reservoir generally along a perimeter thereof. The front mass includes an apex for accumulating expelled gasses. A sloped surface of the front mass functions to direct expelled gasses toward the apex and through an outlet provided by the irrigation manifold.

Abstract: An arm assembly for supporting a surgical lighthead of a surgical light apparatus includes a first arm and a first clevis appended to the first arm and having a first stop surface and a second stop surface. The arm assembly also includes a second arm formed to include an interior region and a second clevis appended to the second arm and having a third stop surface and a fourth stop surface. The surigcal lighthead is supported by the second arm.

Abstract: A transducer assembly and method for coupling ultrasonic energy to a body for thrombolysis of vascular thrombi is provided. The assembly includes a catalytic transducer for transmitting ultrasound into a medical target transcutaneously. The catalytic transducer includes a front mass having structure which optimizes the transmission of ultrasound into the body. A reservoir for containing a cooling conductive medium between the front mass and the body surface is provided, and is contained within the housing. In addition, the catalytic transducer includes an irrigation manifold, disposed through a center of the front mass, for directing the media into the reservoir generally along a perimeter thereof. The front mass includes an apex for accumulating expelled gasses. A sloped surface of the front mass functions to direct expelled gasses toward the apex and through an outlet provided by the irrigation manifold.