×

Oral osmotic device for delivering nicotine

  • US 5,147,654 A
  • Filed: 11/15/1991
  • Issued: 09/15/1992
  • Est. Priority Date: 07/23/1990
  • Status: Expired due to Fees
First Claim
Patent Images

1. An osmotic device for the controlled systemic delivery of nicotine base through an oral mucosal membrane in an oral cavity over an extended delivery period, including:

  • a semipermeable wall surrounding and forming a compartment containing a nicotine salt which is capable of reacting with an aqueous fluid to form nicotine base, the wall being formed of a material which is permeable to the passage of an aqueous fluid present in the oral cavity, and a passageway through the semipermeable wall for delivering the nicotine base formed in the compartment to the oral mucosal membrane, wherein the device when in operation in the oral cavity imbibes the aqueous fluid through the wall into the compartment, thereby initiating a chemical reaction between the nicotine salt and the aqueous fluid to produce nicotine base which is delivered from the compartment through the passageway and into the oral cavity over time.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×