The application relates to a catheter device with a distal bearing for bearing a distal end of a drive shaft. The distal bearing comprises a heat conducting part for enabling heat transfer away from the distal bearing and/or a spiral sleeve for receiving the distant end of the drive shaft.

Described herein are devices and methods for pumping blood in a patient in need of circulatory assistance or a replacement heart. Instead of providing a temporary solution for these patients, the devices may be permanently implanted. The devices linearly reciprocate a shuttle within a housing to move blood into and out of the housing, and rotate the shuttle to selectively direct the movement of blood into and out of a plurality of ports in the housing.

Disclosed is a personal vaping device provided with an electrical heating module as an atomizer or heater. The personal vaping device at least includes a power control circuit, which includes a current input terminal, a current input terminal, and a current control module. The power control circuit further includes a power supply control module, a current control module, a voltage modulation module, and a forward and reverse connection current generation module. The microprocessor is configured to control the voltage modulation module and the forward and reverse connection current generation module. The voltage modulation module is configured to regulate a voltage of the DC power supply to a first target voltage and a second target voltage. The forward and reverse connection current generation module is configured to generate a forward connection current and a reverse connection current according to the second target voltage to drive the atomizer or heater for heating.

A vaporiser assembly for an aerosol-generating system may include a capillary element made from porous glass. The capillary element has a first end and a second end. The vaporiser assembly further comprises a heater element. The first end of the capillary element is configured to be fluidically connected to a liquid storage portion. The heater element is provided at the second end of the capillary element. The pore size of the capillary element is configured to allow a liquid aerosol-forming substrate from the liquid storage portion to be conveyed from the first end to the second end of the capillary element by capillary action. The capillary element has a pore size gradient such that an average pore size of the capillary element transitions or varies from larger pores at the first end of the capillary element to smaller pores at the second end of the capillary element.

An aerosol-generating system is provided, including a housing including an air inlet and an air outlet defining an air flow path therebetween; a heater element; and a cartridge moveably mounted in the housing and reversibly displaceable from a first position to a second position, the cartridge including a moveable plunger, a liquid storage portion configured to hold an aerosol-generating liquid, and an opening configured to deliver the aerosol-generating liquid, wherein the cartridge is further configured to activate release of a portion of the aerosol-generating liquid through the opening, when the cartridge is moved by an airstream created between the air inlet and the air outlet within the housing.

A spring clip needle tip shielding device for arrangement in a catheter hub of an intravenous catheter assembly is provided. The spring clip needle tip shielding device comprises a base plate with a hole extending therethrough and at least one resilient arm extending at an attachment point at said base plate. The at least one resilient arm has a resting state, from which it may be urged to yield free passage through said hole in an axial direction of said base plate in a tension state, said at least one resilient arm being adapted for clamping a needle tip of a needle extending through said hole when said resilient arm is in said resting state. Any straight imaginary line extending longitudinally through said hole in the axial direction of said base plate coincides with said at least one resilient arm when said resilient arm is in said resting state of said body. The spring clip needle tip shielding device is of a rigid material, and at least a part thereof is coated with a solid lubricant. A catheter assembly including such shielding device is also provided.

Numerous aspects of communication devices, methods, and systems are described in this application. One aspect is an apparatus comprising an energy generator comprising: a plurality of generator elements operable to output a plurality of different energy types in a signal direction toward a physiologic tissue; a printed circuit board that mechanically supports and electrically connects the plurality of generator elements to each other; each generator element of the plurality of generator elements being independently operable, when the energy generator is positioned relative to the physiologic tissue, to communicate with different nerves associated with the physiologic tissue by outputting a different portion of an energy signal in the signal direction toward the physiologic tissue with one energy type of the plurality of different energy types.

An apparatus includes a housing including a power source; a reservoir including an inlet, an outlet, and configured to contain vaporizable material and couple to the housing; and a PTCR heating element configured to electrically couple to the power source and heat the vaporizable material to form an aerosol. The PTCR heating element includes an electrical resistivity that varies based on temperature. The electrical resistivity includes an electrical resistivity transition zone including an increase in electrical resistivity over a temperature range such that, when the PTCR heating element is heated to a first temperature within the transition zone, current flow from the power source is reduced to a level that limits further temperature increases of the PTCR heating element. Related apparatus, systems, techniques, and articles are also described.

A pain-reducing injection apparatus to enhance the safety, efficacy, and efficiency of injection procedures which utilize topical pain-reducing measures. Apparatuses and methods of use provide pain reduction through thermal cooling of an injection region or vibrating the region or both, and optionally include safety shielding and lockout features.

A hookah device (202) which attaches to a hookah (246). The hookah device (202) comprises a plurality of ultrasonic mist generator devices (201) for generating a mist for inhalation by a user. The hookah device (202) comprises a driver device (202) which controls the mist generator devices (201) to maximize the efficiency of mist generation by the mist generator devices (201) and optimize mist output from the hookah device (202).