A nasal ventilator assembly provides pressurized nasal oxygenation, ventilation and end tidal CO2 sampling with a movable piston, actuation of which opens and closes a vent to vent exhaled gasses to atmosphere. The piston is moved by force applied by gas supply and patient exhalation to a piston surface to actuate a spring to unblock the vent or vents to cause fluid communication between an air chamber and atmosphere. Also disclosed are an intelligent gas source and various valve configurations for use in the intelligent gas source for supplying gas to the pressurized nasal ventilator assembly or other nasal ventilation device.

An apparatus is provided for producing and/or disengaging a fluid flow-capable medical threaded connection. The connection can be a Luer lock connection. The apparatus includes a first receiving device for receiving a first connecting element, and a second receiving device for receiving a second connecting element. The first receiving device and the second receiving device are rotatable relative to each other about a common screwing axis, and displaceable relative to each other along the screwing axis. The apparatus is designed to relatively move the first receiving device and the second receiving device toward and away from each other such that the first connecting element and the second connecting element can be screwed together or disengaged. An associated connecting element can be introduced into the first receiving device and/or into the second receiving device, in a radial direction relative to the screwing axis. A method is also provided.

Described is a method of stimulating airways of a mammal comprising: cyclically occluding a nasal air stream at a frequency rate between 50 Hz to 650 Hz. Also described is an apparatus for stimulating airways of a mammal, comprising: a fluid connection to each of a first and second naris of the mammal; and an occluding device configured to cyclically occlude a nasal air stream within each fluid connection at a frequency rate between 100 Hz to 650 Hz.

Resuscitation/ventilation systems that include a pressure chamber or cylinder may use a piston articulated within the pressure chamber or shaft to push air and/or a mixture of gas and air into and out of an airway circuit for the purpose of providing mechanical ventilation and/or artificial respiration to a patient. In some cases, the pressure chamber or cylinder may be resident within a canister that fits with a body. The canister may include a motor that moves a shaft connected to the piston up and down, or in and out, within the pressure chamber or cylinder and this movement of the piston may cause a vacuum within the airway circuit and/or the pushing of air or gas out of the airway circuit into a patient’s lung(s).

An applicator can include a dispenser for dispensing an amount of a therapeutic composition, which can include an amount of sugar or sugar alcohol and an amount of an alkalizing agent. In some cases, the alkalizing agent can include L-Arginine. In some cases, 75% or more of the composition by weight has a comedogenicity rating of 3 or less on a scale of 0-5. The dispenser can also have a power supply configured to provide power through a contact tip of the dispenser to provide nerve stimulation, such as using vibration, heating, cooling, and/or electrical stimulation.

Provided is a medical handpiece having liquid spray and suction functions and capable of being replaced with a drill. The medical handpiece includes a handpiece body having an accommodation space therein, a spray unit receiving liquid from an outside to spray the liquid onto a target to be treated, a pump unit transmitting air pressure to the spray unit to increase a spray speed of liquid sprayed by the spray unit, a drive unit converting a rotary motion into a reciprocating motion to transmit power to the pump unit, and a suction unit sucking liquid and foreign matter from the target to be treated.

A unidirectional-driven drug infusion device, includes: a reservoir, a piston and a screw, the piston is arranged in the reservoir; a driving module which includes at least one driving wheel and at least one driving arm that cooperate with each other, the circumferential surface of the driving wheel is provided with wheel teeth; a power module coupled to the driving arm; a control module, connected to the power module, controls the power module to apply different driving powers to the driving arm, making the driving arm perform linear reciprocating motion; and a friction member which is in contact with the surface of the driving wheel. This device can fully utilize the internal space of the infusion device, and its weight and volume is reduced.

Disclosed is a chest drainage system which reduces or eliminates pooling of blood/liquid and/or clogging/clotting in the drainage tube. Generally, the chest drainage system continuously monitors chest tube status and clears pooled liquid when necessary to restore negative pressure to the chest. The system may include a valve device which is located between the patient's chest tube and drainage tube and may be used with any standard chest tube. The chest drainage system also includes a controller for monitoring the pressure at or near the valve device and/or at or near the suction device, and possibly a pump for assisting in clearance of pooled liquid and/or clots. The controller may also control the valve device and/or suction device in response to pressure signals.

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.

A biomechanical breast pump mechanism (1) for expressing breastmilk comprising a biomimetic funnel (2), at least two active actuation areas (23,24) on the funnel (2) and stationary areas (25), the active actuation areas (23,24) being actuatable by a driving mechanism or mechanisms (3) and being configured to replicate the complex functions of the infant's tongue during suckling namely the physical stimulation of the areola (17)/nipple (16); nipple positioning; creating and maintaining low-level baseline vacuum to create air-seal on the breast; generating sub-atmospheric pressure inside the funnel (2); creating and maintaining close-to-zero-air environment in the funnel (2); and control of the vacuum oscillation within predefined ranges coordinated negative and positive actuation (41,42) of one or both actuation areas (23,24) independently or simultaneously.