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Adaptors for inhalers to improve performance

  • US 7,343,914 B2
  • Filed: 09/06/2002
  • Issued: 03/18/2008
  • Est. Priority Date: 09/06/2001
  • Status: Expired due to Term
First Claim
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1. A mouthpiece adaptor for a dry powder or metered dose inhaler from which charge bearing particles are delivered to a patient comprising:

  • a connecting side for connecting to a mouthpiece of an inhaler;

    a mouthpiece side of reduced size relative to the inhaler mouthpiece; and

    a transition section between said connecting side and mouthpiece side, wherein the transition section is covered at least in part by a foil which is charged to the same charge as said particles, and the adaptor is smoothly tapered along its entire length from the connecting side to the mouthpiece side.

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