41 results about "Inhalation chamber" patented technology

Dry powder inhalers include: (a) a first generally planar spiral travel path in an inhaler body, wherein the first spiral travel path has a plurality of adjacent curvilinear channels forming lanes with upstanding sidewalls, including an inner lane and an outer lane; and (b) a plurality of discrete sealed microcartridges with substantially rigid bodies disposed in the first travel path, each comprising a pre-metered (typically dose) amount of dry powder, the microcartridges being configured to slidably advance along the first travel path toward an inhalation chamber that merges into an inhalation output port. In operation, at least one microcartridge is held in the inhalation chamber to release the dry powder therein during inhalation.

In one embodiment, a method includes but is not limited to exposing an animal to an inhalant; acquiring near real time measurement of at least respiration during said exposing; and calculating a received dose of the inhalant in response to the near real time measurement of the at least respiration during said exposing. In one embodiment, a method includes but is not limited to automatically controlling an environment of an inhalant chamber; and automatically controlling a concentration of an inhalant in the inhalant chamber. In one embodiment, a method includes but is not limited to displaying near real time measurement data related to an animal in an inhalant chamber. In addition to the foregoing, other method embodiments are described in the claims, drawings, and text forming a part of the present application. In one or more various embodiments, related systems include but are not limited to circuitry and/or programming for effecting the foregoing-described method embodiments; the circuitry and/or programming can be virtually any combination of hardware, software, and/or firmware configured to effect the foregoing-described method embodiments depending upon the design choices of the system designer. In one embodiment, a system includes but is not limited to at least one inhalant chamber; and at least one animal respiration sensor integral with the at least one inhalant chamber.

A ventilation device for supplying air to a clean room having a passage duct (16) with a waste air inlet (13) for receiving waste air form the room and a supply air outlet (14) for discharging supply air (34) to the room. A speed controllable rotatable fan (49) is provided in the passage duct (16) for conveying air from a suction chamber (47) coupled to the waste air inlet (13) to a pressure chamber (48) coupled to the supply air outlet (14). An outside air duct (22) is provided for receiving outside air (27) which is emitted into the passage duct (16), and an exhaust air duct (28) is provided for receiving a part of the waste air (32) extracted from the room for exhaust to the outside. First and second air flow regulators (36, 37) are provided in the respective air ducts (22, 28), and a control unit (68) is provided for controlling operation of the air flow regulators (36, 37) and the rotational speed of the fan (49).

A stand-alone chamber or multi-chamber inhalation system has at least two alternative vaporized test liquid supply systems for passive or self-administered delivery of vaporized test fluid and air to one or more test chambers, which can be passive or restraint chambers, based on operator selection of delivery on and off times in a passive mode or actuation of an actuator in the chamber by a test animal in a self-administered mode. In one case, a multiple inhalation chamber system has two or more separate test fluid delivery systems and provides options for selective passive uniform drug delivery to multiple chambers or selective delivery of two or more different drugs to different groups of chambers from different delivery systems so that two different drugs or different concentrations of delivered drugs can be tested simultaneously.

In order to solve the problem that the structures of a nozzle and a throat section need to be redesigned and manufactured when the area ratio of an existing ejector is changed, the invention provides a gas ejector which comprises a suction chamber, a diffusion outer cylinder and an exhaust tail pipe which are sequentially communicated and coaxial, wherein the diffusion outer cylinder comprises a mixing part, a contraction part, a throat part and an expansion part; and the suction chamber is fixedly provided with an annular spray pipe, a diffusion cone is fixedly arranged in the diffusion outer cylinder and comprises a conical cone section I, a circular truncated cone-shaped cone section II and a circular truncated cone-shaped cone section III, the conical section I, the conical section II and the conical section III are sequentially and coaxially connected, the diffusion cone is coaxial with the diffusion outer cylinder, the bottom of the conical section I is connected with the upper bottom of the conical section II, the bottom of the conical section II is connected with the lower bottom of the conical section III, the lower bottom of the conical section II is connected with the lower bottom of the third conical section, the conical section I is located in the contraction part, the conical section II is located in the throat part, the conical section III is located in the expansion part, and the outer molded surface of the conical section II is parallel to the inner wall of the throat part. The gas ejector is compact in structure, facilitates the size with higher throat sections, simple in structure, easy to machine and manufacture and convenient to mount.

The invention discloses an acidic etching liquid recycling anti-recoil bipolar jet flow chlorine gas absorber which structurally comprises a diffusion hole and a throat pipe section, wherein the holeand the throat pipe section are connected and communicate with each other; a suction chamber is adopted for absorption treatment on a chlorine gas; a chlorine gas is sucked out through a gas suction pipe; and a remaining liquid is output through a reducing chamber. When a liquid blown out from a nozzle is blocked by a liquid which is not output in time, the direction of the liquid is guided by a guide hole inside, a reverse holding strip can be expanded, the liquid can be expanded and held by a protection core inside, an angle expansion bag is stressed to enable a swinging angle of the angle expansion bag to swing inside a middle fixing core, in the swinging process, a clamping protection hole plays a role of protection on the liquid, the gas suction pipe is capable of carrying out absorption circulation continuously, a few liquid with the chlorine gas has a recoiling phenomenon in the screening and absorption process of the chlorine gas, then the liquid can be clamped in seams and canbe baffled and pushed back in time, chlorine gas absorption is not affected, and the liquid is not clamped in the seams to form certain color layers in which other organisms can be generated.

The invention relates to the technical field of intelligent household appliances, and discloses a method for controlling a ventilation device. The method for controlling the ventilation device comprises the steps that when it is determined that the ventilation function needs to be started, indoor air pressure and outdoor air pressure are obtained, and when the indoor air pressure is larger than orequal to the outdoor air pressure, outdoor air is sucked in through a first air duct, and indoor air is sucked in through a second air duct. By the adoption of the method, the ventilation device canexchange air according to the rated power, and energy waste is reduced. The invention further discloses a device for controlling the ventilation device and ventilation equipment.

The invention relates to an apparatus (100) for receiving and spreading out/extending cloth (3), such as pieces of laundry, comprising a set of spreader clamps (120) for releasably receiving a pair of corners of said cloth (3) and for spreading out of said cloth (3), a suction box system (S) including: a suction chute (170) connected with a front portion of a suction chamber (200) and having a mouth for receiving said cloth (3), and a suction fan (119) communicating with a rear portion of said suction chamber (200) via a number of air flow passages (185), the suction fan (119) establishing suction in said suction chamber (200) and said suction chute (170), whereby said suction box system (S) additionally includes a discharge conveyor (C) for the discharge of cloth (3) collected in said suction chamber (200), a discharge gate (320) selectively openable for said discharge, and an air access gate (430) operable for temporarily reducing suction applied by said fan (119) through said air flow passages (185).

The invention relates to the technical field of medical supplies, and provides an aromatized methoxyflurane inhalation device for treating traumatic pain in emergency treatment. The device comprises a base end part, a nozzle end part and a coaxial air inhalation-exhalation chamber structure; the air inhalation-exhalation chamber structure comprises an air inhalation chamber and an air exhalation chamber; the air suction chamber and the air exhalation chamber are respectively communicated with the end part of the pipe nozzle through an air inlet channel and an air outlet channel; the end part of the base part is communicated with the air inhalation chamber through a methoxyflurane connecting pipe and an aromatic gas connecting pipe, and is communicated with the air exhalation chamber through an exhaust hole; an evaporation chamber, an air supply chamber and a turbulent flow chamber are sequentially arranged in the air suction chamber from one side of the end part of the base part to one side of the end part of the pipe nozzle, and an air filtering device is arranged in the air exhalation chamber. According to the present invention, the methoxyflurane and the aromatic gas are mixed so as to allow the patient to inhale the aromatized methoxyflurane, such that the effective analgesia is provided while the tolerance of the emergency trauma patient on the analgesic drug is improved.