Inhalation device

• US 3,948,264 A
• Filed: 05/21/1975
• Issued: 04/06/1976
• Est. Priority Date: 05/21/1975
• Status: Expired due to Term

• Current Assignee: Mead Johnson & Company (Reckitt Benckiser Group PLC)
• Original Assignee: Mead Johnson & Company (Reckitt Benckiser Group PLC)
• Inventors: McCrady, Paul E., Henderson, Norman C., Wilke, George A., Stansell, Stanley M.
• Primary Examiner(s): Michell, Robert W.
• Assistant Examiner(s): Recla, Henry J.
• Application Number:
  US05/579,525
• Time in Patent Office: 321 Days
• Field of Search: 128/266, 128/206, 128/208, 128/209, 222/202
• US Class Current: 128/203.15
• CPC Class Codes: A61M 15/0028 using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
• CPC Class Codes: A61M 15/0033 Details of the piercing or cutting means
• CPC Class Codes: A61M 2202/064 Powder

Abstract

A device utilized for the inhalation of medicament in a powder form. This device has a body portion with communicating primary and secondary air inlet channels and an outlet channel. The secondary inlet channel provides an enclosure for a capsule containing medicament and the outlet channel is formed in a mouthpiece protruding from the body portion. A capsule piercing structure is provided, which upon rotation puts holes in the capsule, so that upon vibration of the capsule, caused by an electro-mechanical vibration means, medicament is ejected from the capsule. After piercing and upon inhalation through the mouthpiece, and activation of the vibration means, powder is ejected into the airstream passing through the inlet channels, outlet channel, and into the user'"'"'s mouth.

Claims

1. An inhalation device, for the dispensing of medicament in a powder form, having a body portion comprising

an air outlet channel in said body portion providing a mouthpiece for inhalation of air by the user;

a primary air inlet channel in said body portion communicating with said air outlet channel;

a secondary air inlet channel in said body portion providing an enclosure for movement therein resulting from said air inhalation of a capsule containing said medicament, said secondary inlet channel communicating with said primary air inlet channel and said outlet channel;

means for piercing holes in said capsule disposed around said secondary inlet channel; and

electro-mechanical means for vibrating said capsule, whereby after piercing of said capsule, upon activation of said vibrating means and inhalation, said medicament is ejected from said pierced capsule, dispersed into the stream of air inhaled through said inlet channels, and inhaled into said outlet channel and the mouth of the user.

2. An inhalation device according to claim 1 wherein said primary air inlet channel is generally aligned with and meets said outlet channel which together meet said secondary air inlet channel at a generally right angle thereto.

3. An inhalation device according to claim 2 wherein said vibrating means is disposed within said body portion at a right angle to said outlet channel and adjacent the innermost end of said secondary inlet channel.

4. An inhalation device according to claim 3 wherein said vibrating means comprises an external switch, electric power cell, solenoid buzzer, and plunger rod, whereby upon activation of said vibration means by pressing of said switch, said plunger rod vibrates against said capsule to cause powder to be ejected therefrom.

5. An inhalation device according to claim 4 wherein said piercing means comprises a rotatable chamber having radially extending, spring-biased needles mounted thereon, whereby rotation of said chamber causes said needles to pierce said capsule and then be retracted.

6. An inhalation device according to claim 5 wherein said rotatable chamber is trochoidal in shape and has three of said needles.

7. An inhalation device according to claim 6 wherein a slip-on cover cap is secured around the outermost end of said secondary inlet channel and said cap has a screened opening to permit air to be inhaled therethrough, yet prevent said capsule from falling out of the device during use.