Medicinal inhalation devices, valves and components thereof
Assignee3M Innovative Properties Company
InventorPhilip A. Jinks
Life of this patent
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Abstract
A method of making a metered dose valve or a component including the step of forming a coating on at least a portion of a surface of the valve or the component, wherein said coating comprises a particulate material selected from the group consisting of Magnesium Stearate, Calcium Stearate, Zinc Stearate, Aluminium Stearate, Stearic acid, Magnesium Palmitate, Calcium Palmitate, Zinc Palmitate or Aluminium Palmitate, Palmitic acid, and mixtures thereof.
Claims38
A method of making a metered dose valve for use in a medicinal inhalation device or a component of a metered dose valve for use in a medicinal inhalation device, wherein at least a portion of a surface of the valve or component, respectively, is to be coated, the method comprising the steps:
- a) providing the valve or the component, respectively;
- and
- b) forming a coating on said at least a portion of a surface of the valve or the component, respectively, wherein said coating comprises a particulate material selected from the group consisting of Magnesium Stearate, Calcium Stearate, Zinc Stearate, Aluminium Stearate, Stearic acid, Magnesium Palmitate, Calcium Palmitate, Zinc Palmitate or Aluminium Palmitate, Palmitic acid, and mixtures thereof.
A method of making a metered dose valve for use in a medicinal inhalation device, wherein at least a portion of a surface of a component of the valve is to be coated, the method comprising the steps:
- a) providing the component of the valve;
- b) forming a coating on said at least a portion of a surface of the component, wherein said coating comprises a particulate material selected from the group consisting of Magnesium Stearate, Calcium Stearate, Zinc Stearate, Aluminium Stearate, Stearic acid, Magnesium Palmitate, Calcium Palmitate, Zinc Palmitate or Aluminium Palmitate, Palmitic acid, and mixtures thereof;
- and
- c) assembling the valve using said coated component and, as applicable, other valve-components.
A metered dose valve for use in a medicinal inhalation device, wherein at least a portion of a surface of a component of the valve is coated prior to attachment of the valve to an medicinal container of the medicinal inhalation device and wherein said coating comprises a particulate material selected from the group consisting of Magnesium Stearate, Calcium Stearate, Zinc Stearate, Aluminium Stearate, Stearic acid, Magnesium Palmitate, Calcium Palmitate, Zinc Palmitate or Aluminium Palmitate, Palmitic acid, and mixtures thereof.
A medicinal inhalation device comprising a metered dose valve, wherein at least a portion of a surface of a component of the valve is coated, said coating comprising a particulate material selected from the group consisting of Magnesium Stearate, Calcium Stearate, Zinc Stearate, Aluminium Stearate, Stearic acid, Magnesium Palmitate, Calcium Palmitate, Zinc Palmitate or Aluminium Palmitate, Palmitic acid, and mixtures thereof, and wherein the medicinal aerosol formulation filled into the device is essentially free of Magnesium Stearate, Calcium Stearate, Zinc Stearate, Aluminium Stearate, Stearic acid, Magnesium Palmitate, Calcium Palmitate, Zinc Palmitate or Aluminium Palmitate, and Palmitic acid.
Dependencies are inferred from the claim text.