A device and method for adjusting a tidal breath delivered to a patient. The device includes a moving frame which is configured to move over a stationary frame that is nested within the moving frame itself. Disposed between the moving frame and the stationary frame is a compressible bellows which delivers a tidal breath to the patient each time the moving frame is passed over the stationary frame. The specific volume of the tidal breath that is delivered may adjusted according to the estimated weight of the patient, thereby preventing over inflation of the patient's lungs while undergoing treatment. To adjust the tidal breath volume, the user quickly changes the relative position of a slide adjuster which dictates the range of possible movement between the moving frame and the stationary frame, thereby limiting the volume of air/oxygen which may be drawn into the bellows.

Methods and devices for delivering a dose, such as a medicament, for inhalation. A dose may be stored by a delivery device and dispersed and delivered in a metered fashion to a subject, such as by the subject inhaling via a mouthpiece of the delivery device. One or more chambers of the device may have a toroidal shape and may be arranged to be selectively opened for fluid communication with a flow path of the delivery device, such as by sliding the chamber relative to a portion of the flow path. The flow path may include a restriction that permits air to bypass the chamber, and/or the chamber may be arranged so that fluid entering the chamber interacts with fluid exiting the chamber so as to enhance dispersion of the dose.

Disclosed are systems and processes related to cardiopulmonary resuscitation (CPR). One embodiment of the system comprises an inspiration chamber and an expiration chamber, which work cooperatively to provide gas (e.g., Oxygen (O.sub.2)) to a subject (e.g., human patient) during inspiration and extract and expel expired gas (e.g., Carbon Dioxide (CO.sub.2)) from the subject during expiration as a medical professional applies CPR to the subject. In other words, this disclosure provides systems and processes that allow for substantially synchronous chest compressions with positive pressure active inspirations and, also, substantially synchronous chest decompressions with negative pressure active expirations.

A device and method for adjusting a tidal breath delivered to a patient. The device includes a moving frame which is configured to move over a stationary frame that is nested within the moving frame itself. Disposed between the moving frame and the stationary frame is a compressible bellows which delivers a tidal breath to the patient each time the moving frame is passed over the stationary frame. The specific volume of the tidal breath that is delivered may adjusted according to the estimated weight of the patient, thereby preventing over inflation of the patient's lungs while undergoing treatment. To adjust the tidal breath volume, the user quickly changes the relative position of a slide selector which dictates the range of possible movement for the bellows to be compressed, thereby limiting the volume of air/oxygen which may be delivered by the bellows.

A negative-pressure source is described. The negative-pressure includes a first housing and a second housing configured to be coupled to the first housing to form a cavity. The first housing and the second housing are rotatable on a common axis relative to each other. A membrane is disposed in the cavity and sealed to the second housing to form a first chamber and a second chamber. A motor is disposed in the first chamber, and a clockwork is coupled to the motor and configured to be driven by the motor. A threaded body is disposed in the first chamber and configured to be driven by the motor. The threaded body is configured to rotate on the common axis and to displace the membrane in response to rotation on the common axis.

Presented are manual ventilator systems, methods for making/using such ventilator systems, and clamshell, accordion-style ventilators operable by a lone operator. A ventilator device includes first and second panels pivotably attached together in a clamshell configuration. Each panel has an inlet port, an outlet port, and an internal channel that fluidly connects the inlet and outlet ports. A one-way valve is fluidly connected to the first panel’s outlet port and restricts airflow therethrough in one direction. Another one-way valve is fluidly connected to the second panel’s inlet port and restricts airflow therethrough in an opposite direction. A concertinaed bellows is fluidly connected to the first panel’s outlet port and the second panel’s inlet port. The bellows is sandwiched between and attached to the two panels such that pivoting the panels away from each other expands and fills the bellows whereas pivoting the panels towards each other compresses and evacuates the bellows.

A system for actuating a volume and/or pressure-controlled manual ventilator including a manual ventilator, a storage case, and an actuating mechanism. The manual ventilator includes a compressible body, an output one-way valve at an output end, and an input one-way valve at an input end. The storage case includes an inner housing surface configured to accommodate the manual ventilator. The actuating mechanism includes a power unit mechanically coupled to a linear rod mechanism and one or more applicator pads mechanically coupled to the linear rod mechanism and proximal to the compressible body. The linear rod mechanism is configured to convert a rotating motion of the power unit into an axial movement of the linear rod mechanism. The actuating mechanism is configured to apply pressure to the compressible body of the manual ventilator via the one or more applicator pads such that a volume of the compressible body is deflated.

The present invention relates to an enema device comprising a delivery container and an applicator nozzle, and wherein said delivery container comprises two cavities, an outer cavity defined by a squeezable external body, and an inner cavity defined by an inner flexible bladder, and wherein one of said cavities is communicating with an outlet for dispersing the enema though the applicator nozzle and the other cavity is communicating with the surroundings via an air inlet. Thereby is provided a simple, inexpensive and essentially maintenance free enema device which can be used for self-administrating of an enema. The device will not only effectively prevent air from being mixed with the enema, but also ensure that the user easily can expel the enema, as the device will be perceived as full of enema at all times.

A pressure regulating or pressure relief device comprises an inlet and an outlet chamber with an outlet. The inlet is in fluid communication with the outlet chamber. A valve seat is located between the inlet and the outlet. A valve member is biased to seal against the valve seat, and displaces from the valve seat by an inlet pressure at the inlet increasing above a pressure threshold to allow a flow of gases from the inlet to the outlet via the outlet chamber. The flow of gases through the outlet causes an outlet pressure in the outlet chamber to act on the valve member together with the inlet pressure to displace the valve member from the valve seat.

A tattoo ink mixing apparatus has a housing having a cavity, a plunger movable between a first position and a second position, and a dynamic member disposed in the cavity and adapted to engage with the plunger distal end. The dynamic member moves in response to movement of the plunger and alternatively creates a suction force and an expulsion force in the opening of the distal end of the housing as the plunger moves between its first and second positions.