Smith + Nephew

Stephen Jacob

Jake Turner

Max Middleton

Edward Yerbury Hartwell

Edward William Vernon-Harcourt

David Stuart Harris

Nathan Wrench

Benjamin Gordon

Methods and apparatuses for detecting full waste canister and/or fluid flow path blockage conditions are disclosed. Also disclosed are methods and apparatuses for controlling a pump. In some embodiments, flow of fluid can be restricted in a portion of the fluid flow path. A controller can be configured to compare a difference in pressure values upstream and downstream of a fluid flow restrictor to a pressure difference threshold, and determine based on the comparison whether to activate an alarm indicating the full waste canister condition or the fluid flow path blockage condition. The controller can be additionally or alternatively configured to determine a fluid flow using a flow meter, open a selectable valve in response to a comparison of the fluid flow with a fluid flow threshold, determine fluid flow after opening the valve, and determine based on the fluid flow after opening the valve whether to activate the alarm.

Systems and methods for controlling operation of negative pressure wound therapy apparatus

Apparatus () for the provision of TNP therapy to a wound is described, the apparatus () including: a waste canister () into which fluid is aspirated from a wound by aspiration pump means () and a fluid flow path () for at least a part of said aspirated fluid on an outlet side of said aspiration pump means () wherein said fluid flow path () on the outlet side comprises a silencing system () having a plurality of silencing elements () therein.

Silencer for vacuum system of a wound drainage apparatus

A method and apparatus is disclosed for determining pressure provided by a pump of a topical negative pressure (TNP) system. The method includes the steps of determining a value associated with a measured pressure, determining a difference between the measured pressure value and a predetermined desired value and increasing or decreasing a speed of pumping of the pump responsive the to difference.

Pressure control

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Cambridgeshire, United Kingdom

Stephen Jacob