Systems and methods for controlling dual mode negative pressure wound therapy apparatus

US11559619B2 · kind B2 · utility

Assignee

• SMITH & NEPHEW ASIA PACIFIC PTE. LIMITED · SG

Inventors

• Eric Edward Adams · Pittsboro, US
• Ben Alan Askem · Kirkby Stephen, GB
• Kevin Bendele · Adkins, US
• Aaron Michael Husz · Cary, US
• David Edward Lee · Durham, US
• Nisha Mistry · Pune, IN
• Lee Michael Rush · St. Petersburg, US
• Hannah Bailey Sidebottom · Lincoln, GB
• David Ronald Upton · New Hill, US
• Gareth Walker · Hull, GB
• William Jacob Ward · Apex, US

Key dates

• Filing date: Apr 29, 2019
• Grant date: Jan 24, 2023
• Expiry date: Apr 29, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/14
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In some embodiments, a negative pressure wound therapy device includes a negative pressure source and a controller configured to, in response to determining that the negative pressure source is directly fluidically connected to a wound dressing without a canister between the two, operate the negative pressure source in a first mode; otherwise, operate the negative pressure source in a second, different mode. The controller can be further configured to, in response to determining that a level of activity of the negative pressure source over a first time duration satisfies at least one of a leak or blockage condition, provide an indication of at least one of a leak or blockage and, in response to determining that the level of activity does not satisfy the at least one of the leak or blockage condition over a second time duration subsequent to the first time duration, discontinue providing the indication.