摘要:
A droplet delivery device and related methods for delivering precise and repeatable dosages to a subject for pulmonary use is disclosed. The droplet delivery device includes a housing, a reservoir, and ejector mechanism, and at least one differential pressure sensor. The droplet delivery device is automatically breath actuated by the user when the differential pressure sensor senses a predetermined pressure change within housing. The droplet delivery device is then actuated to generate a stream of droplets having an average ejected droplet diameter within the respirable size range, e.g, less than about 5 μm, so as to target the pulmonary system of the user.
摘要:
A pump unit includes a micro pump and an assist mechanism. The micro pump includes: a housing having an inflow port and an outflow port; and a pump device built in the housing, the pump device transporting a fluid from the inflow port to the outflow port. The assist mechanism includes a jet nozzle for jetting a fluid. A jet port is opened at a tip portion of the jet nozzle. The assist mechanism is disposed in such a manner that a gap through which a fluid outside can flow is formed between the tip portion and the housing. The jet port is located in proximity to the inflow port. The jet port directly faces the inflow port.
摘要:
An aerosol generator assembly comprising a vibratable piezo ceramic body (2) having first and second opposing sides, an aperture (o) defined in the vibratable body and extending through the body from the first side to the second side and having a layer of electrical contact material on each side of the vibratable body, the vibratable body being vibratable by application of an electrical signal thereto; a vibratable member (1) with pores defined therein, the vibratable member mounted across the aperture; and an electrical contact material free-zone (4) is provided on at least one side of the body about the aperture, characterized in that the electrical contact material free-zone and the vibratable member are dimensioned so that the vibratable member is mountable directly onto the vibratable body on top thereof within the electrical contact material free-zone such that a gap area free of electrode contact material is formed between the terminating edge of the electrical contact material and the periphery of the vibratable member.
摘要:
An inhalation device having a base unit, a mouthpiece, and an aerosol head is provided. The base unit has an air inlet, an air outlet opening, a groove for receiving the mouthpiece, and key lock member(s). The mouthpiece has two segments: a first segment which is insertable into the groove of the base unit and has an air inlet opening and a lateral opening for receiving an aerosol generator and a second segment with an aerosol outlet. The aerosol head has an aerosol generator, a liquid reservoir, and key lock member(s) complementary to those of the base unit. The base unit, mouthpiece and aerosol head are connectable with one another such that when engaging the members of the key lock with the complementary members, the aerosol generator is inserted into the lateral opening of the mouthpiece.
摘要:
An ejection head cartridge and an inhalation apparatus may limit turbulence in an air stream and reduce the likelihood of collisions of ejected drug in an air flow channel so that the drug can be conveyed in a uniform air stream. An ejection head cartridge that is attachable to an inhalation apparatus for ejecting drug for inhalation by a user and has a plurality of ejection ports includes, among end portions continuous to a surface provided with the ejection ports, an end portion parallel to an ejection port array having a shape that guides a part of the air stream generated in the direction orthogonal to the ejection-port providing surface along the surface.
摘要:
The invention provides a medicine ejection device which provides stable ejection even when a reservoir with high sealability is used and can eject an appropriate amount of medicine. A medicine ejection portion 1 includes an ejection nozzle 1a for ejecting a medicine and an element 1b which generates energy for ejecting the medicine from the ejection nozzle 1a, and is connected to a medicine storing portion 2 for storing the medicine. The medicine storing portion 2 is blocked from the outside air except a path through the ejection nozzle 1a, so that when the medicine is ejected from the ejection nozzle 1a, a pressure difference is formed between the outside and the inside of the medicine storing portion 2. A pressure unit 3 which is a feature of the present invention pressurizes a movable wall 5 when ejecting a medicine, which is displaced so that the volumetric capacity of the medicine storing portion 2 decreases due to the pressure difference.
摘要:
A transition adapter component of a ventilator aerosol delivery system for delivering an aerosol to a patient, includes a housing having a proximal end and a distal end, the proximal end having an aerosol passage for receiving an aerosol produced by a heated capillary and a gas connection port for receiving carrier gas from a ventilator, which is in communication with a plurality of gas entry ports within the transition adapter. An inner cavity of the transition adapter receives the aerosol from the heated capillary and the streams of carrier gas from the plurality of gas exit ports within the transition adapter and directs the streams of carrier gas at least partially encircling and in parallel with the aerosol. An exit port on the distal end of the transition adapter housing delivers an entrained aerosol to an aerosol delivery connector.
摘要:
An ejection head unit is attachable to an inhaler for ejecting a medicine to cause a user to inhale the medicine and has a plurality of ejection heads having an element generating energy for ejecting the medicine, and a plurality of ejection nozzles through which the medicine is ejected by the element. An inhaler for ejecting a medicine to allow inhalation thereof by a user has an air flow path guiding a medicine that is inhaled accompanying inspiration by the user to a suction port, an ejection head unit having a plurality of ejection heads including an element generating energy for ejecting the medicine and a plurality of ejection nozzles through which the medicine is ejected by the element, and a positioning unit for positioning a single ejection head among the plurality of ejection heads at an opening provided in one portion of the air flow path.
摘要:
Provided are a medicine ejection device capable of realizing appropriate ejection by surely setting an inner pressure of a medicine tank at a negative pressure in an initial period of every ejection time, and a control method for the medicine ejection device. A medicine container section that contains medicine is coupled to a medicine ejection section including nozzles from which the medicine is ejected, and elements which generate energy for ejecting the medicine from the nozzles. A plug as a movable wall positionally shifts so that a capacity of the medicine container section can increase or decrease in accordance with a predetermined pressure difference between an inside and outside of the medicine container section. Prior to opening a head cap, the capacity is increased so as to generate pressure variations in a negative pressure direction, which have a larger value than a value equivalent to the predetermined pressure difference.
摘要:
An inhaler includes a medicine cartridge having at least an ejection head and a first electrical connection section for supplying the ejection head with electric power necessary for ejecting medicine, an inhaler body having a medicine cartridge mounting section and an inhalation piece. The inhaler is so constructed that an electric circuit for supplying the ejection head with electric power necessary for ejecting medicine by way of the first electrical connection section is made operable by mounting and rigidly securing the inhalation piece onto the inhaler body. The inhaler can be operated by a user with ease and the ejection head is reliably electrically energized only when the inhaler is operated.