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:
Nov. 16, 2021
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 driving circuit that supplies a driving signal to a negative pressure source to cause the negative pressure source to provide negative pressure via a fluid flow path to a wound dressing. The apparatus furthers include a controller that adjusts a frequency of the driving signal supplied by the driving circuit according to a comparison of a previous magnitude and a subsequent magnitude of the driving signal while the negative pressure source provides negative pressure. The transfer of power to the negative pressure source can thereby be tuned to maximize an amount of power transferred to the negative pressure source.