Abstract: A dental chair assembly comprises a base, a support, a first pivot mount and a second pivot mount. The support is configured to support a chair seat defined to extend in a forward direction and a chair back positioned rearward of the chair seat. The support has a forward side, an opposite rearward side and a longitudinal axis extending through the forward and rearward sides. The first pivot mount is positioned along the longitudinal axis forward of the rear side of the support and configured to support at least one movable arm. The first pivot mount defines a first upright pivot axis. The second pivot mount is positioned along the longitudinal axis and spaced forwardly from the first pivot mount. The second pivot mount is configured to support at least one movable arm and defines a second upright pivot axis parallel to the first upright pivot axis.

Abstract: The present invention provides a respiratory adapter for inhaled media deposition in the lungs and airways. The respiratory adapter provides an inspiratory arm and an expiratory arm, wherein the two arms are joined by a bypass flow bridge. A system of valves, such as one-way valves, directs the flow of gas and media through the respiratory adapter to improve media deposition efficiency and to prevent re-breathing of exhaled gas.

Abstract: An anesthesia device configured to measure the hydrogen concentration in an anesthesia gas containing a hydrogen gas includes: an anesthesia gas preparation circuit configured to generate anesthesia gas by mixing an air or an oxygen mixture air with a vaporized anesthetic; a closed circuit-type or semi-closed circuit-type respiratory circuit including a gas circulation passage configured to circulate the hydrogen-containing anesthesia gas containing the hydrogen gas and the vaporized anesthetic; and a hydrogen concentration measurement circuit configured to measure the hydrogen concentration in the hydrogen-containing anesthesia gas in the gas circulation passage, wherein the hydrogen concentration measurement circuit includes: an anesthetic removing member having a removability of the vaporized anesthetic in the hydrogen-containing anesthesia gas; and a hydrogen concentration measuring instrument provided on the secondary side of the anesthetic removing member.

Abstract: A respiratory drug delivery apparatus that includes a housing for holding a source of a medication, wherein the housing has a patient interface portion for delivering one or more doses of the medication to an airway of a patient, and a sound generator coupled to the housing. The sound generator is adapted to generate one or more audible instructions in response to an actuation signal. The actuation signal may generated in response to a manual actuation performed by the patient, or in response to the detection of an event relating to operation of the apparatus.

Abstract: A system and method for administering nitrous oxide to a patient has a fluid control system that allows a user to monitor and control the supply of gases to a patient. A shutoff valve allows a user to selectively activate the fluid control system. Oxygen flow is adjusted by a flow controlling valve. A differential pressure regulator allows flow of nitrous oxide in response to sufficient oxygen flow. Flow of the nitrous oxide is further controlled by a ratio controlling valve. A display shows the flow of the gases through the fluid control system. A flush valve allows a user to flush the output with oxygen. A flow indicator light may be included. An optional output selector allows the user to direct the flow to one of various output ports. An optional safety scavenge valve prevents operation of the fluid control system when there is insufficient scavenge vacuum pressure.

Abstract: Ventilation apparatus includes a hat having an axis of symmetry and composed of a top and sides extending down to a rim extending all around the hat. An elongated flexible panel encircles the rim. Securements secure the panel to the rim at spaced-apart locations therearound to provide a plurality of relatively long channels extending between the rim and the panel. Each channel extends parallel to the axis and is sized to slidably receive a tube. In use, a patient wears the hat and inlet and outlet tubes are retained in selected hat channels so as to stabilize a patient interface cannula connected to the tubes so that the cannula's nasal prongs remain properly positioned in the patient's nares.

Abstract: An adapter for use in a breathing circuit including a housing with a conduit having a ventilator port adapted to be coupled to a breathing circuit and a patient port adapted to communicate with a patient interface. A medicament container receptacle communicates with the conduit between the ventilator port and the patient port. The receptacle includes a support block having a well shaped to receive a valve stem extending from a container of medicament and an actuator finger extending upwardly in the receptacle adjacent the support block. The actuator finger is adapted to actuate a dose counter coupled to the container.

Abstract: Disclosed is a starting up self-testing method of an airway pressure sensor for an anesthesia machine. In a manual state, a pressure value of the pressure sensor is detected, and after the detection, if the value is within an airway pressure measurement range but not within a sensor zero point voltage range, the anesthesia machine is switched to a machine-controlled state to detect the pressure value of the pressure sensor, so that under the machine-controlled state, an airway is in communication with a bellows to enable gas possibly left in the airway to flow into the bellows to thus change the pressure value in the airway, and hence if the current pressure value of the pressure sensor is reduced or directly in the sensor zero point voltage range, the pressure sensor is valid.

Abstract: Examples of the invention include inhalation systems, breathing apparatuses, and methods for administering a solution by inhalation to a patient. Example breathing apparatuses described herein may be configured to minimize loss of the solution to the environment. Additionally or instead, example breathing apparatuses may be configured to recirculate exhaled solution to increase an amount of the solution available to a patient while minimizing exhausted solution. In some examples, breathing apparatuses may deliver nebulized platelet rich plasma (“PRP”).

Abstract: There is provided herein devices for delivering hydrogen to a subject comprising a flow path including a breather bag and an inhalation outlet for engagement with the subject respiratory system; and a breathing gas supply source comprising hydrogen gas and in fluid communication with the flow path. Also provided are devices for the cutaneous delivery of hydrogen.

Abstract: A dispensing device, a storage device and a method are proposed for dispensing a formulation as a spray. The formulation is dispensed by means of a gas stream. To improve the dispensing effect, pressure pulses are generated in the gas stream and/or the direction of gas flow alternates. The formulation is dispensed through a duct. The duct is connected to a storage chamber containing the formulation via a sharp edge or transition portion.

Abstract: A manual emergency resuscitator uses a volume control system having pre-defined setting to accommodate patients of different sizes. An upper plate 305 is attached to a front hinge assembly 103 and a lower housing assembly is attached to the front hinge assembly. The lower housing assembly defines the lower portions of an accordion chamber 206. A selection void 300 is defined within the upper plate 305, with the selection void further defined by voids indexed to a closed position, infant position, child position and an adult position. A volume selector cord 201 has a first end attached to a volume selector, with the volume selector contained within the selection void. Placing the volume selector into one of the predefined positions regulates the amount of air delivered by the resuscitator.

Abstract: A disposable breathing circuit is adapted to be connected between a disposable face mask and a vacuum source for delivering fresh gas to the face mask and for scavenging waste gas exhaled from the face mask. The breathing circuit includes a fresh gas supply limb and an exhalation limb and a scavenging limb coupled to the exhalation limb. The scavenging limb includes a one-way valve to prevent re-breathing, a flexible flow-through reservoir bag used to store exhaled gas, and an output tube adapted to be coupled between the flow-through reservoir bag and the vacuum source.

Abstract: A flow control device for blocking the flow of analgesic gas to the mask of an analgesic system includes a bellows-bulb at the distal end of the breathing circuit. The device can be easily operated by hand. By depressing the bellows when the mask is removed, gaseous pollution, such as nitrous oxide or other gas pollution, can be controlled while the system is purged.

Abstract: A disposable breathing circuit is adapted to be connected between a disposable face mask and a vacuum source for delivering fresh gas to the face mask and for scavenging waste gas exhaled from the face mask. The breathing circuit includes a fresh gas supply tube, a flexible flow-through exhalation bag, an exhalation tube disposed between the face mask and an entry port of the exhalation bag, and a scavenging tube disposed between an exit or of the exhalation bag and the vacuum source. The exhalation tube includes a one-way valve to prevent re-breathing.

Abstract: The present invention is a method and system for administering nitrous oxide. The system includes a fluid control system for controlling the flow of nitrous oxide and oxygen to the patient. A nitrous oxide and oxygen supply, vacuum source, a breather bag, and a nasal delivery interface system are fluidly connected to the fluid control system and a patient. The fluid control system also includes a safety scavenge system including a mass airflow sensor, master controller, nitrous oxide valve, and alarm. The mass airflow sensor reads the scavenging vacuum pressure which it communicates to the master controller. Depending upon the scavenging vacuum pressure, the master controller can activate an alarm or shut off the flow of nitrous oxide. In operation, the present invention provides a system for administering anesthesia/analgesia gas which prevents excessively high volumes of exhaled nitrous oxide in the operatory environment through monitoring of the scavenge vacuum pressure.

Abstract: A therapeutic vaporizer inhalation bag attachment system with an integrated valve is disclosed. The attachment system includes a body having a lumen extending between the two openings of the body, a bag coupling, and a valve positioned within the lumen. A method of using the inhalation bag attachment system is also disclosed.

Abstract: A demand valve is fixedly and rigidly mounted on an anesthetic gas mixer stand in close proximity to the gas mixer. A single-patient-use disposable breathing and scavenging circuit is adapted to be removably connected to the demand valve output for permitting a patient to breath gas, or a mixture gases, supplied by the gas mixer through a remotely located disposable face mask included as a portion of the breathing circuit. The breathing circuit further includes a scavenger portion for collecting exhaled waste gas from the face mask. The scavenger portion of the circuit also is disposable.

Abstract: A medical aerosol delivery device comprises a housing having a first opening and a second opening and defining a fluid passage between the first and second openings. The housing comprising a pressurized medical aerosol canister actuator having a canister receptacle disposed within the fluid passage and having a valve chamber comprising a fine bore nozzle positioned to direct atomized medicament toward the first opening. The fluid passage includes an annular portion bypassing the canister receptacle and the housing comprises a movable closure member for selectively obstructing the fluid passage.

Abstract: A method of treatment and a nasal treatment delivery device for mixed carbon dioxide and saline for treating head ailments includes: a) a main housing having a hollow central area containing a dosage that includes a saline fluid and a gas containing carbon dioxide; b) a dosage dispenser head located at the distal end of the main housing, and having at least one flow channel for movement of the dosage from the main housing through the dosage dispenser head and to external of the dosage dispenser head; c) a dosage release control component located between the main housing and the dosage dispenser head to permit flow of the dosage through the dosage dispenser head in response to increased pressure against the dosage; and d) a pressure-changing moveable component located on the main housing.

Abstract: A therapeutic face mask comprises a face-engaging portion and a single connector having a mask-engaging end and a single treatment-receiving end which has a single attachment mounting for detachably sealingly receiving a treatment attachment, such as an oxygen reservoir bag or a nebulizer. A one-way inhalation valve in the connector permits fluid flow from the treatment-receiving end to the mask-engaging end during inhalation and inhibits fluid flow in the other direction. The mask also includes a valve-governed exhalation port and an anti-asphyxia valve assembly configured to permit fluid flow from ambient to the face-engaging portion during inhalation only when inspiratory effort during inhalation exceeds fluid flow to the treatment-receiving end of the connector. Also provided is an oxygen reservoir bag having a neck shaped for removable coupling to a mating connector of a therapeutic face mask. An oxygen reservoir bag may have a metered-dose inhaler port defined in its neck.

Abstract: An ambient or room air vacuum attachment or nozzle is provided proximal to the connection between a breathing circuit and the protruding inlet port of a respiratory face mask, and a tubular passageway is sealingly connected between the vacuum attachment or nozzle and a source of vacuum. By virtue of such structure, any gas escaping from the periphery of the respiratory face mask through accident or otherwise is immediately and automatically “vacuumed-up” by the proximally located vacuum attachment or nozzle and evacuated from the surrounding room environment through the vacuum source to which the ambient air vacuum nozzle and tubular passageway are connected.

Abstract: In an apparatus for collection of waste anesthetic gases, and a method of using such an apparatus, the apparatus has a gas collection chamber with an input port to be connected to an exhaust of an anesthesia delivery system for receiving a first gas flow therefrom that contains a waste anesthetic gas component. An output port from the gas collection chamber is connected to a vacuum system for evacuation of an evacuation gas flow from the gas collection chamber. A bidirectional port leads to and from the gas collection chamber, which has an adsorbing unit connecting the gas collection chamber with an ambient environment surrounding the gas collection chamber. The apparatus provides for safe prevention of discharge of exhaled anesthetic gases into an ambient atmosphere surrounding the apparatus.

Abstract: A device for automatically squeezing and releasing an AMBU-bag is disclosed. A device has a housing and a mechanical compression squeezer in the housing. There are openings in the housing for inlet tubes and outlet tubes of AMBU-bag to pass in and out of the housing. A powered actuator powers the compression squeezer. Alarms and signals provide information regarding excessive pressure and regarding bag cycling.

Abstract: A breathing system is provided that employs a reservoir for holding oxygen or an oxygen and medicine mixture while the patient is not inhaling. The reservoir generally prevents waste and reduces cost and helps prevent the patient from re-inhaling the previously exhaled gases. The reservoir also may include a flange extending from an inlet thereof that allows the reservoir to be positioned in an inverted position.

Abstract: A versatile, intubation-facilitating oxygen mask is provided including at least one diaphragm configured with a continuous, flexible, modifiable membrane from which an instrument-access port may be manually constructed, when and if needed. The novel oxygen mask preferably includes a multiple-inlet port having a standard oxygen tube connector and an interchangeable breathing-therapy device connector, a carbon dioxide sampling port, an exhaust port, and a nose clip. The mask can be worn as a standard oxygen mask during traditional oxygen therapy, yet quickly converted into an intubation mask. The clinician manually perforates the nasal and/or oral membranes of the one or more diaphragms to create a point and size of entry perfectly matched to the requirements for a variety of procedures that may be performed involving nasally or orally introduced scopes or probes—without disturbing the ongoing benefits of increased oxygen saturation and continuous monitoring of expired gases.

Abstract: An adjustable volume control manual resuscitation bag assembly includes a resuscitation bag, a volume control knob, a traction assembly operating in response to adjustment of the control knob, and a follower assembly including a bag compression limiting member and a follower which are moved in response to operation of the traction assembly to adjust and limit the volume of gas delivered by compression of the bag.

Abstract: An inhalation mask, an artificial nose unit, an anesthetic gas concentration detector, an extension tube, an anesthesia attachment, and an elastic bag are in communicative connection in sequence. The elastic bag has a mixing chamber formed therein and has an anesthetic inlet, an air inlet, and an outlet port each formed at the boundary to the exterior. The anesthesia attachment includes a hollow structure and an evaporation injector syringe. The outlet port of the elastic bag is in communicative connection with the hollow structure through its opening, and the evaporation injector syringe tightly mates with the interior of another opening. The anesthetic introduced into the mixing chamber is vaporized and then mixed with air introduced from the air inlet into mixed gas. The mixed gas is supplied from the outlet port to the inhalation mask by compressing the elastic bag or other procedures.

Abstract: Examples of the invention include inhalation systems, breathing apparatuses, and methods for administering a solution by inhalation to a patient. Example breathing apparatuses described herein may be configured to minimize loss of the solution to the environment. Additionally or instead, example breathing apparatuses may be configured to recirculate exhaled solution to increase an amount of the solution available to a patient while minimizing exhausted solution. In some examples, breathing apparatuses may deliver nebulized platelet rich plasma (“PRP”).

Abstract: An integrated manual/mechanical ventilation driving device comprising a movable or deformable internal chamber comprising a first port for air communication, the internal chamber being at least partially disposed within a movable or deformable external chamber comprising a second port for air communication, wherein when a driving gas enters a space between the external chamber and the internal chamber through the second port, the internal chamber is squeezed so that gas is expelled from the internal chamber through the first port, and wherein the external chamber is configured to be manually squeezed or deformed inwardly to contact and squeeze the internal chamber so that gas is expelled from the internal chamber through the first port.

Abstract: The present invention is a method and system for administering nitrous oxide. The system includes a fluid control system for controlling the flow of nitrous oxide and oxygen to the patient. A nitrous oxide and oxygen supply, vacuum source, a breather bag, and a nasal delivery interface system are fluidly connected to the fluid control system and a patient. The fluid control system also includes a safety scavenge system including a mass airflow sensor, master controller, nitrous oxide valve, and alarm. The mass airflow sensor reads the scavenging vacuum pressure which it communicates to the master controller. Depending upon the scavenging vacuum pressure, the master controller can activate an alarm or shut off the flow of nitrous oxide. In operation, the present invention provides a system for administering anesthesia/analgesia gas which prevents excessively high volumes of exhaled nitrous oxide in the operatory environment through monitoring of the scavenge vacuum pressure.

Abstract: A respiration system feeds an anesthetic gas having, a density ?gas, with a Y-piece for connection to a patient, with a respiration circuit having an inspiration branch and an expiration branch, which extend away from the Y-piece. A first supply line from a branch in the expiration branch leads to an anesthetic gas discharge valve and a second supply line from the branch leads to a reservoir. A too high pressure, opposing expiration, cannot build up in the expiration branch and losses of anesthetic gas are kept to a minimum. A prestressing device exerts a prestressing force onto the valve body of the anesthetic gas discharge valve against the effect of gravity. The mass mvalve and the prestressing force determine a threshold pressure in the anesthetic gas discharge line that results in an opening of the anesthetic gas discharge valve.

Abstract: The invention relates to an inhalation device (FIG. 1) having a connection device (4) and a container (8) connected or connectable thereto and collapsing upon inhaling, for intermediately storing an aerosol. In order to increase the fine particle count of the dispensed aerosol, the container (8) at least substantially retains the length thereof when collapsing, and/or tapers down toward the free end thereof.

Abstract: The present invention is a system for administering nitrous oxide. The system includes an adjustable post mechanism attached to a dental chair. A mounting surface structure includes a top surface and a bottom surface. The bottom surface of the mounting surface structure attached to a top end of the adjustable post mechanism. A fluid control system for controlling the flow of nitrous oxide and oxygen is attached to the mounting surface structure. A nitrous oxide and oxygen supply, vacuum source, a breather bag, and a nasal delivery interface system are fluidly connected to the fluid control system and a patient. The breather bag is vertically mounted to a top surface of the mounting surface structure. In operation, the present invention provides a system for administering anesthesia/analgesia gas which provides convenient and direct access to a medical practitioner.

Abstract: A ventilator assembly includes a housing defining an inhalation interior space and an exhalation interior space separate from the inhalation interior space. A ventilator port is positioned at a first location of the housing and defines a first passageway in communication with the inhalation interior space and the exhalation interior space. A patient port is positioned at a second location of the housing and defines a second passageway in communication with the inhalation interior space and the exhalation interior space. A one-way inhalation valve permits one-way flow from the ventilator port to the patient port through the inhalation interior space and a one-way exhalation valve permits one-way flow from the patient port to the ventilator port through the exhalation interior space. A receptacle is in communication with the inhalation interior space and is operative to receive a container comprising an aerosolized medication.

Abstract: Breathing equipment (10) for use in conventional operating room procedures comprises a flexible breathing bag (12) connected at one end (12.1) via a gas redirecting connector (14) to a gas guiding tube (16) and at the opposite end to a flexible exhaust gas bridging tube (18) forming part of a gas removal conduit (20) used for the remote venting of exhaled gas via a remote discharge tube (22) also forming part of the conduit (20). A breathing piece (28) is situated at the free end of the tube (16). An inhalation gas supply tube (24) passes within the tube (22) and via the connector (14) into the gas guiding tube (16) up to a position of discharge in close proximity of a user. The connector (14) is formed to cause exhaled gases from the piece (28) to pass along the tube (16) and through the bag (12) prior to remote venting to enable use of the ‘feel’ of the bag (12) during breathing assistance.

Abstract: A flexible bag aerosol holding chamber is sealed around the outlet passage of the actuator for a pressurized metered-dose inhaler. An elastic-loaded mouthpiece is sealed around the inlet passage of the actuator so that the user may intermittently break the seal around the inlet passage by withdrawing the mouthpiece, thus allowing inhalation of a portion of the aerosol contents of the chamber. In a preferred embodiment of the invention, the aerosol contains a compound which has traditionally been smoked such as nicotine or a cannabinoid. The user may draw upon the chamber's contents a number of times at a frequency analogous to smoking until the chamber is fully collapsed. One inhaler actuation, and one filled chamber, are comparable to one cigarette. The collapsible bag chamber allows for economy of inhaler actuations relative to user inhalations, without the aerosol being diluted by ambient air.

Abstract: A powder medicine administering device includes a main body, an air supply section, and a movable member slidably attached to the main body, and arranged to be moved relative to the main body from a first position through a second position to a third position. One of the main body and the movable member includes a side wall portion defining a medicine storage chamber including an opening closed by a sliding surface of the other of the main body and the movable member at the second position of the movable member, and a medicine discharge passage. The other of the main body and the movable member is formed with a medicine carrying chamber connected with the opening of the medicine storage chamber at the first position of the movable member, and connected with the medicine discharge passage at the third position of the movable member.

Abstract: Ventilator apparatus provides a breathing circuit for supplying breathing gas to a patient. The breathing circuit includes a variable volume enclosure (3) provided within an enclosure chamber (2) and a gas supply path (21) into the enclosure chamber enabling the enclosure chamber to be pressurised by the supplied gas in order to vary the volume of the enclosure. An alternative path (9) for the gas supply is provided enabling the gas supplied, in predetermined circumstances, to enter directly into the breathing circuit via a valve (4). The gas supply path into the chamber is directed such that as a result of gas passing into the enclosure chamber the valve is biased more firmly to a closed condition.

Abstract: The invention relates to an aerosol therapy device comprising: a housing; an aerosol generator, which is arranged in the housing; an air inlet (52), which is formed in the housing upstream of the aerosol generator (30); and an air outlet (51), which is formed in the housing downstream of the aerosol generator (30) to administer the aerosol produced, wherein an air flow from the air inlet (52) to the air outlet (51) can be generated by a negative pressure at the air outlet (51), wherein said air flow flows around the aerosol generator (30), characterized in that a truncated-cone-shaped flow channel (41), the central axis (44) of which extends in a curved manner, is arranged between the aerosol generator and the air outlet (51).

Abstract: A valve is provided for controlling the flow of gas through an anesthesia or respiratory breathing circuit. The valve includes a valve body having a first port, a second port, and a third port. The third port includes a flow restrictor for restricting the flow of gas through the third port. A valve closing member is provided that is moveable between an open position where gas can flow through the third port, and a closed position. In the closed position, gas is prevented from flowing through the third port.

Abstract: A cardiopulmonary resuscitation device that combines ventilation of a patient's lungs with chest compressions on the patient's sternum area. The device includes a self-inflating bag having an outlet port through which the content of the bag is forced when bag is compressed; target indicia on the bag to indicate the proper position of the bag on the patient's sternum area and to indicate the proper location on the bag for applying force to the top side thereof; a face mask for placement over the patient's mouth and nose; and a tube extending from the bag to the face mask. The device may include indicia for indicating the amount of pressure applied to the self-inflating bag, and a backboard including belt/motor structure for providing repeated and rapid chest compression and forced ventilation of the patient's lungs.

Abstract: A cardiopulmonary resuscitation device that combines ventilation of a patient's lungs with chest compressions on the patient's sternum area. The device includes a self-inflating bag having an outlet port through which the content of the bag is forced when bag is compressed; target indicia on the bag to indicate the proper position of the bag on the patient's sternum area and to indicate the proper location on the bag for applying force to the top side thereof; a face mask for placement over the patient's mouth and nose; and a tube extending from the bag to the face mask. The device may include indicia for indicating the amount of pressure applied to the self-inflating bag, and a backboard including belt/motor structure for providing repeated and rapid chest compression and forced ventilation of the patient's lungs.

Abstract: This invention relates to systems and methods of delivering anesthetic to a subject. Specifically, the invention relates to systems and methods of delivering an anesthetic to a subject while being able to regulate and recover the ensethetic gas from the air upon expiration.

Abstract: A respiratory face mask is provided suitably sized and configured to engage at least the nose portion and mouth portion of a patient's face. Gas from a gas supply and scavenging set normally used in dentistry is operatively coupled to the mask via a breathing circuit to supply fresh gas and evacuate exhaled waste gas. A gas flow compensator in the breathing circuit automatically prevents re-breathing of exhaled gas. Because the mask has a sealing cushion, contamination of the clinical room where the apparatus is being used also is avoided. In an alternatively preferred embodiment, the fresh gas supply tube and the exhalation limb of the breathing circuit are replaced by a single length of co-axial flexible tubing connected between the face mask and a branched coupling. The branched coupling, in turn, includes a first branch for connection to the fresh gas supply nozzle of the “dental” set-up and a second branch for connection to a flexible flow-through reservoir bag used to store waste or exhaled gas.

Abstract: A flexible bag aerosol holding chamber is sealed around the outlet passage of the actuator for a pressurized metered-dose inhaler. An elastic-loaded mouthpiece is sealed around the inlet passage of the actuator so that the user may intermittently break the seal around the inlet passage by withdrawing the mouthpiece, thus allowing inhalation of a portion of the aerosol contents of the chamber. In a preferred embodiment of the invention, the aerosol contains a compound which has traditionally been smoked such as nicotine or a cannabinoid. The user may draw upon the chamber's contents a number of times at a frequency analogous to smoking until the chamber is fully collapsed. One inhaler actuation, and one filled chamber, are comparable to one cigarette. The collapsible bag chamber allows for economy of inhaler actuations relative to user inhalations, without the aerosol being diluted by ambient air.

Abstract: An apparatus and method are provided to rapidly thaw and heat frozen bags of biological materials, such as plasma. The apparatus has a hollow bladder having a flexible wall that is placed in contact with the bag. A circulation system draws fluid from a reservoir and fills the bladder with the fluid. The circulation system also drains fluid from the bladder. A heater in the reservoir heats the fluid before the fluid enters the bladder. As heated fluid flows through the bladder, heat is transferred through the bladder wall to the plasma bag to thaw the biological material. The bladder wall expands against the plasma bag as the bladder fills with fluid, and contracts from the plasma bag as the bladder is drained. The expansion and contraction of the bladder wall agitates the plasma bag and biological material to accelerate the thawing process.

Abstract: In a modular medicament delivery system, a dispenser housing has a support block with a well and an orifice communicating with the well. A first container assembly includes a valve stem shaped to be received by the well in the support block. The first container assembly has a first exterior shape. A second container assembly includes a valve stem shaped to be received by the well in the support block. The second container assembly has a second exterior shape that is different than the first exterior shape. An insert member is adapted for mounting to the dispenser housing in the cavity and defines an interior space shaped to receive the second exterior shape of the second container. Methods of assembling the system, a system kit and a device are also provided. A medication delivery device includes first and second end pieces and a collapsible chamber disposed therebetween.

Abstract: The present invention is a system for administering nitrous oxide. The system includes an adjustable post mechanism attached to a dental chair. A mounting surface structure includes a top surface and a bottom surface. The bottom surface of the mounting surface structure attached to a top end of the adjustable post mechanism. A fluid control system for controlling the flow of nitrous oxide and oxygen is attached to the mounting surface structure. A nitrous oxide and oxygen supply, vacuum source, a breather bag, and a nasal delivery interface system are fluidly connected to the fluid control system and a patient. The breather bag is vertically mounted to a top surface of the mounting surface structure. In operation, the present invention provides a system for administering anesthesia/analgesia gas which provides convenient and direct access to a medical practitioner.

Abstract: Disclosed is a manually operable volume-adjustable ventilation device. The device includes a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir. The reservoir has a body having a plurality of movable walls defining an enclosed volume. The reservoir has an uncompressed state and a compressed state. The walls of the reservoir are movable with respect to each other, such that moving the walls expresses the volume adjustment limit of the reservoir. The walls can be operably connected by movable structures configured such that two adjacent walls are configured to rotate around substantially orthogonal axes with respect to each other when the reservoir moves from an uncompressed to a compressed state. In some embodiments, the movable structures can be hinges, such as snap-fit assembly hinges. Methods of ventilating a patient that involve the device are also disclosed.