A system for connection to a catheter to aspirate clot from the vasculature of a patient includes a vacuum console and a canister assembly which can be removably mounted in a mounting region of the vacuum console. The canister assembly includes a clear canister with an interior and an open top. A lid is removably attachable over the open top of the clear canister, and the clear canister has a vacuum port and a pressure sensing port each formed in a wall of the canister. The vacuum port aligns with a vacuum connector on the enclosure and the pressure sensing port aligns with a pressure sensing connector on the enclosure when the canister assembly is mounted on the mounting region of the vacuum console. The clear canister has a filter plate configured to be suspended in the interior of the clear canister at a location mid-way between the open top and a bottom to separate clot from blood as they are aspirated from the catheter.

A collection device and a collection process provide the capability of receiving secretions, which have been suctioned out of a patient (P). A collecting unit including a bag (3) and a cover (2) encloses a collecting unit interior space (In1). The suctioned secretions flow through a patient-side fluid connection and through a patient-side port (4) in the cover into the collecting unit interior space. A backflow barrier includes a blocking body, which is fastened to a surface of the cover of the collecting unit interior space. In a blocking state, the blocking body closes the patient-side port. A restoring force generator exerts a restoring force on the blocking body, to hold the backflow barrier in the blocking state. A flow of secretions through the patient-side port into the collecting unit interior space brings about a transference of the backflow barrier into a flow stat e against the restoring force.

A wound treatment apparatus is provided for treating tissue damage, which comprises a fluid impermeable wound cover sealed over a site for purposes of applying a reduced pressure to the site. The apparatus also can include a cover with protrusions on its surface for purposes of monitoring pressure at the site. One or more sensors can be positioned under the cover to provide feedback to a suction pump controller. The apparatus can have a miniature and portable vacuum source connected to the wound cover.

Some embodiments comprise a pump assembly for reduced pressure wound therapy, comprising a housing, a flow pathway through the pump, one or more valves in communication with the flow pathway, a pump supported within or by the housing, and a one-way flow valve in fluid communication with the pump. The pump assembly can have a pressure sensor in communication with the flow pathway through the pump, and at least one switch or button supported by the housing, the at least one switch or button being accessible to a user and being in communication with the controller. The one-way flow valve can be configured to substantially prevent a flow of gas through the one-way flow valve in a direction of flow away from the pump. The pump assembly can have a controller supported within or by the housing, the controller being configured to control an operation of the pump. The pump has been sterilized following the assembly of the pump such that an inside and an outside of the housing, the flow pathway, the one or more valves, the pump, the controller, the battery compartment, and the at least one switch or button have been sterilized.

In some embodiments, a negative pressure wound therapy system can detect and classify one or more operational conditions, including detection of a wound bleeding. The system can react to detection of blood by providing an indication, reducing the intensity or stopping therapy, releasing negative pressure, etc. In certain embodiments, the system can detect one or more additional operational conditions, such as change in vacuum pressure, gas leak rate change, exudate flow rate change, water flow rate change, presence of exudate, presence of water, etc. The system can detect and distinguish between different operational conditions and provide indication or take remedial action.

A dressing for treating a tissue site with negative pressure may include a core having a first surface, a second surface, and an absorbent between the first surface and the second surface, a cover disposed over the first surface of the core, a pressure indicator configured to change shape under negative pressure, and a fluid conductor coupling the pressure indicator to the second surface of the core.

An indicator configured to be attached to a wound dressing includes first and second parts. The wound dressing is configured to collapse in response to an applied negative pressure. The first and second indicator parts are configured to move relative to one another as the wound dressing is collapsed. The movement of the first and second indicator parts is configured to allow a user to easily visualize the compression of the wound dressing and monitor the application of the negative pressure to the wound dressing. A marker is provided along a top surface of the first part and a window is formed on the second part. The changes in the portion of the marker that is visible in the window as the first part is slid into or under the second part are configured to provide for easier detection of the collapse of the wound dressing by the user.

A fluid collection system includes a vacuum source, a collection vessel, and a surgical drape. A fluid outflow line is connected between the surgical drape and the collection vessel. The fluid outflow line provides a path for fluid to the collection vessel. A suction line is connected with the collection vessel. The suction line provides suction to draw fluid through the fluid outflow line to the collection vessel. The suction line branches into a first suction line and a second suction line parallel with the first suction line. The first suction line and the second suction line are each connected with the vacuum source. A flow restrictor is disposed along the first suction line. A valve is disposed along the second suction line. The valve is opened in a pulsatile fashion when fluid is present in the surgical drape to increase a level of suction provided to the surgical drape.

Devices, systems, and methods used to drain a body cavity under a vacuum are disclosed. The devices include a vacuum container, a cap, and a vacuum indicator. The vacuum indicator is configured to indicate a vacuum status of the container. The vacuum indicator includes one or more of an expandable member, a flexible membrane, a linear pressure gauge, a digital pressure gauge, a retractable member, a vacuum gauge, a displaceable seal member, a deflectable membrane, or a deflectable member.

A wound treatment apparatus is provided for treating tissue damage, which comprises a fluid impermeable wound cover sealed over a site for purposes of applying a reduced pressure to the site. The apparatus also can include a cover with protrusions on its surface for purposes of monitoring pressure at the site. One or more sensors can be positioned under the cover to provide feedback to a suction pump controller. The apparatus can have a miniature and portable vacuum source connected to the wound cover.