Powder inhaler
OwnerZohar Avrahamiinventor
Life of this patent
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Abstract
An inhaler device for administration of a dry powder to a patient includes a package containing a dose of the dry powder and a magnetic field generator, which produces a magnetic field in a vicinity of the package. The magnetic field causes motion of particles of the powder so as to deaggregate the powder in the package, whereby the powder is inhaled by the patient. Preferably, the package includes walls made of a flexible material, which vibrate under the influence of the magnetic field so as to impart the motion to the particles.
Claims36
An inhaler device for administration of a dry powder to a patient, comprising:
- a package adapted to contain a dose of the dry powder;
- and
- a magnetic field generator, operative to produce a magnetic field in a vicinity of the package, causing motion of particles of the powder so as to deaggregate the powder in the package, whereby the powder is inhaled by the patient,
- wherein the package comprises walls made of a flexible material, which vibrate under the influence of the magnetic field so as to impart the motion to the particles,
- the device further comprising electrical wiring coupled to at least one of the walls and a control unit coupled to drive a time-varying current through the wiring, causing the walls to vibrate due to interaction of the current with the magnetic field.
An inhaler device for administration of a dry powder to a patient, comprising:
- a package adapted to contain a dose of the dry powder;
- and
- a magnetic field generator, operative to produce a magnetic field in a vicinity of the package, causing motion of particles of the powder so as to deaggregate the powder in the package, whereby the powder is inhaled by the patient,
- wherein the package comprises walls made of a flexible material, which vibrate under the influence of the magnetic field so as to impart the motion to the particles,
- wherein the walls comprise a magnetic material, and wherein the field generator comprises an electromagnet, which is adapted to produce a time-varying magnetic field, causing the walls to vibrate due to interaction of the magnetic material with the magnetic field.
An inhaler device for administration of a dry powder to a patient, comprising:
- a package adapted to contain a dose of the dry powder;
- and
- a magnetic field generator, operative to produce a magnetic field in a vicinity of the package, causing motion of particles of the powder so as to deaggregate the powder in the package, whereby the powder is inhaled by the patient,
- wherein the package comprises walls made of a flexible material, which vibrate under the influence of the magnetic field so as to impart the motion to the particles,
- wherein the walls made of the flexible material comprise opposing side walls of the package, which vibrate in a controlled mutual phase relationship.
An inhaler device for administration of a dry powder to a patient, comprising:
- a package adapted to contain a dose of the dry powder;
- and
- a magnetic field generator, operative to produce a magnetic field in a vicinity of the package, causing motion of particles of the powder so as to deaggregate the powder in the package, whereby the powder is inhaled by the patient,
- wherein the package comprises walls made of a flexible material, which vibrate under the influence of the magnetic field so as to impart the motion to the particles,
- wherein the walls are driven to vibrate at a frequency approximately equal to a resonant vibration frequency thereof.
An inhaler device for administration of a dry powder to a patient, comprising:
- a package adapted to contain a dose of the dry powder;
- and
- a magnetic field generator, operative to produce a magnetic field in a vicinity of the package, causing motion of particles of the powder so as to deaggregate the powder in the package, whereby the powder is inhaled by the patient,
- wherein the package comprises walls made of a flexible material, which vibrate under the influence of the magnetic field so as to impart the motion to the particles,
- the device further comprising a vibration sensor, which is adapted to generate signals responsive to vibration of the walls, and a control unit, which is coupled to receive the signals from the vibration sensor and, responsive thereto, to control the inhaler device so as to regulate an energy of vibration of the walls.
An inhaler device for use by a patient, comprising:
- a dose of dry powder comprising magnetized particles;
- a package adapted to contain the dose of the dry powder;
- and
- a magnetic field generator, operative to produce a magnetic field in a vicinity of the package, causing motion of particles of the powder so as to deaggregate the powder in the package, whereby the powder is inhaled by the patient,
- wherein the field generator is adapted to produce a time-varying magnetic field which interacts with magnetic fields of the particles, causing the particles to move.
An inhaler device for administration of a dry powder to a patient, comprising:
- a package adapted to contain a dose of the dry powder;
- and
- a magnetic field generator, operative to produce a magnetic field in a vicinity of the package, causing motion of particles of the powder so as to deaggregate the powder in the package, whereby the powder is inhaled by the patient,
- wherein the powder comprises magnetized particles, and wherein the field generator is operative to produce a time-varying magnetic field which interacts with magnetic fields of the particles, causing the particles to move.
An inhaler device for administration of a dry powder to a patient, comprising:
- a package adapted to contain a dose of the dry powder and having an opening through which the powder can exit the package to be inhaled by the patient;
- and
- an electrostatic valve screen, arranged to trap the powder inside the package by generating a time-varying electrostatic field across.
A method for deaggregation of a dry powder for administration to a patient, comprising applying a magnetic field so as to cause motion of particles of the powder, whereby the powder is inhaled by the patient.
A method for administration of a dry powder to a patient, comprising:
- providing the dry powder in a package having an opening through which the powder exits the package and is inhaled by the patient;
- and
- generating a time-varying electrostatic field across the opening so as to trap the powder inside the package until the patient inhales.
Dependencies are inferred from the claim text.