The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2022
Filed:
May. 03, 2017
Smith & Nephew Plc, Watford, GB;
Ben Alan Askem, Leeds, GB;
Victoria Beadle, Hull, GB;
John Philip Gowans, Hessle, GB;
Mark Hesketh, Royston, GB;
Allan Kenneth Frazer Grugeon Hunt, Beverley, GB;
William Kelbie, Inverness, GB;
Damyn Musgrave, Cottenham, GB;
Joseph William Robinson, Papworth Everard, GB;
Smith & Nephew PLC, Watford, GB;
Abstract
Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a source of negative pressure, a coupling circuit, a driving circuit, and a controller. The driving circuit supplies a driving signal to the source of negative pressure via the coupling circuit to cause the source of negative pressure to provide negative pressure to a wound dressing. The coupling circuit includes an inductive reactance that limits a rate of change over time of the driving signal. The controller controls the driving signal supplied by the driving circuit.