Abstract: 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.

Abstract: Apparatus (10, 200) for the provision of TNP therapy to a wound is described, the apparatus (10, 200) including: a waste canister (22, 204) into which fluid is aspirated from a wound by aspiration pump means (44, 248) and a fluid flow path (420, 422) for at least a part of said aspirated fluid on an outlet side of said aspiration pump means (44) wherein said fluid flow path (420, 422) on the outlet side comprises a silencing system (400) having a plurality of silencing elements (402, 404, 406) therein.

Abstract: 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.

Abstract: 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.

Abstract: Apparatus (10, 200) for the provision of TNP therapy to a wound is described, the apparatus (10, 200) including: a waste canister (22, 204) into which fluid is aspirated from a wound by aspiration pump means (44, 248) and a fluid flow path (420, 422) for at least a part of said aspirated fluid on an outlet side of said aspiration pump means (44) wherein said fluid flow path (420, 422) on the outlet side comprises a silencing system (400) having a plurality of silencing elements (402, 404, 406) therein.

Abstract: Apparatus (10, 200) for the provision of TNP therapy to a wound is described, the apparatus (10, 200) including: a waste canister (22, 204) into which fluid is aspirated from a wound by aspiration pump means (44, 248) and a fluid flow path (420, 422) for at least a part of said aspirated fluid on an outlet side of said aspiration pump means (44) wherein said fluid flow path (420, 422) on the outlet side comprises a silencing system (400) having a plurality of silencing elements (402, 404, 406) therein.

Abstract: 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.

Abstract: 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.

Abstract: Apparatus (10, 200) for the provision of TNP therapy to a wound is described, the apparatus (10, 200) including: a waste canister (22, 204) into which fluid is aspirated from a wound by aspiration pump means (44, 248) and a fluid flow path (420, 422) for at least a part of said aspirated fluid on an outlet side of said aspiration pump means (44) wherein said fluid flow path (420, 422) on the outlet side comprises a silencing system (400) having a plurality of silencing elements (402, 404, 406) therein.

Abstract: Apparatus (10, 200) for the provision of TNP therapy to a wound is described, the apparatus (10, 200) including: a waste canister (22, 204) into which fluid is aspirated from a wound by aspiration pump means (44, 248) and a fluid flow path (420, 422) for at least a part of said aspirated fluid on an outlet side of said aspiration pump means (44) wherein said fluid flow path (420, 422) on the outlet side comprises a silencing system (400) having a plurality of silencing elements (402, 404, 406) therein.

Abstract: Apparatus (10, 200) for the provision of TNP therapy to a wound is described, the apparatus (10, 200) including: a waste canister (22, 204) into which fluid is aspirated from a wound by aspiration pump means (44, 248) and a fluid flow path (420, 422) for at least a part of said aspirated fluid on an outlet side of said aspiration pump means (44) wherein said fluid flow path (420, 422) on the outlet side comprises a silencing system (400) having a plurality of silencing elements (402, 404, 406) therein.

Abstract: Apparatus (10, 200) for the provision of TNP therapy to a wound is described, the apparatus (10, 200) including: a waste canister (22, 204) into which fluid is aspirated from a wound by aspiration pump means (44, 248) and a fluid flow path (420, 422) for at least a part of said aspirated fluid on an outlet side of said aspiration pump means (44) wherein said fluid flow path (420, 422) on the outlet side comprises a silencing system (400) having a plurality of silencing elements (402, 404, 406) therein.

Abstract: 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.

Abstract: 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.

Abstract: Apparatus and methods for alerting a user of topical negative pressure therapy apparatus to a non-flow condition of aspirant fluid in the apparatus are described, the apparatus comprising: a device having vacuum pump means and a waste canister connected to the device; the waste canister being operably connected to a wound dressing by aspiration conduit means for aspirating fluid from the wound; the aspiration conduit means, the waste canister and the device providing a fluid flow path therethrough and the vacuum pump means providing for fluid flow therethrough; the device having first pressure sensing means at an upstream position between an outlet port for aspirated fluid from said waste canister and said pump means; said waste canister having further provision selected from one of, selectable vent means for admission of ambient air to said waste canister and selectable second pressure sensing means for sensing pressure in said waste canister; and, a control system for receiving signals from said sensors and

Abstract: A method and apparatus is disclosed for determining pressure provided by a pump element of a topical negative pressure (TNP) system. The method includes the steps of determining a current pressure provided by a pump element of a TNP system, comparing the determined pressure with a predetermined pressure and selecting a target pressure intermediate the current and predetermined pressure and increasing or decreasing pump speed to respectively increase or decrease pressure until the current pressure matches the target pressure.

Abstract: 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.

Abstract: Apparatus (10, 200) for the provision of TNP therapy to a wound is described, the apparatus (10, 200) including: a waste canister (22, 204) into which fluid is aspirated from a wound by aspiration pump means (44, 248) and a fluid flow path (420, 422) for at least a part of said aspirated fluid on an outlet side of said aspiration pump means (44) wherein said fluid flow path (420, 422) on the outlet side comprises a silencing system (400) having a plurality of silencing elements (402, 404, 406) therein.

Abstract: A method of plugging a pipeline includes the steps of welding onto the exterior of the pipeline (10) first (12) and second (14) spaced apart collars, each having a sealing face (26,26A) in a plane perpendicular the pipeline (10) axis. A containment housing (34,36) is affixed by welding to the collars (12,14) to fully encompass a section of the pipeline (10) between the collars (12,14). A tapping (60) machine is then removably attached to an open top of the containment housing (34). Using the tapping machine (60) a short length of the pipeline (10) is cut and removed from between the collars (12,14) leaving two open exposed pipe ends (78,80). First and second seal elements (92,94) are positioned between the collars (12,14), Each having a forward sealing face. The seal elements (92,94) are forced apart from each other into sealing engagement with the collar sealing faces thereby closing the open, exposed ends (78,80) of the pipe (10).

Abstract: An embodiment includes a connector element that comprises a connector body and a fiber optic ferrule slidably positioned inside the connector body. The ferrule holds at least one optical fiber. The connector element carries an optical sub-assembly including a photonic device and a spacer and includes a connector sleeve for receiving the connector element. The sleeve includes a ridge that operates as a first stop for the connector body and includes an alignment projection that coarsely aligns the fiber optic ferrule. The ferrule includes a pair of openings configured to receive a pair of alignment pins to provide fine alignment of optical fibers with corresponding photonic devices. The connector element is engaged with the connector sleeve to position the ferrule with respect to the optical sub-assembly such that the optical fiber is correctly positioned relative to a corresponding photonic device.