A monitoring device may include a housing, which may include a distal end, a proximal end, and a fluid pathway extending through the proximal end and distal end. The distal end may include a connector configured to couple to a catheter assembly. The monitoring device may include one or more sensors disposed within the fluid pathway. The sensors may facilitate identification of an occlusion within the catheter assembly.

Embodiments of negative pressure wound therapy systems and methods for operating the systems are disclosed. In one embodiment, a negative pressure wound therapy apparatus can include a wound dressing, a negative pressure source, and a controller. The negative pressure source can provide negative pressure via a fluid flow path to the wound dressing. The controller can monitor a rate of fluid removal from the wound, wirelessly communicate the rate of fluid removal to a remote device, and output an indication when the rate of fluid removal meets a threshold.

An extension conduit for use with a system for aspirating thrombus includes a passageway extending between a distal end and a proximal end of the extension conduit, and a combined hydraulic and electrical control carried on the extension conduit and configured to be activated by a user to activate an electric switch while opening a valve to allow flow through the passageway.

A gas collection unit for use in monitoring and tracking a discharge of air from a patient includes a housing, a set of valves, and a plurality of tubes. The housing contains a first chamber, a second chamber, and a third chamber wherein the chambers are in fluid communication with one another. The housing includes a fluid in the first chamber and the second chamber. The first valve regulates the passage of air flow from the patient into the first chamber and is located within a first tube coupled to the housing. The second valve is in communication with the second chamber. The second valve being configured to regulate the passage of air exiting the first chamber. The second chamber is subjected to a suction. The gas collection unit is operable with an air collection device as a retrofitted item.

A method for identifying saline solution in an aspirated fluid mixture during vitrectomy or another vitreoretinal surgery includes estimating a fluid property value of the mixture via an electronic control unit (ECU). The mixture includes saline solution and either vitreous or silicone oil. The method includes identifying the saline solution as a primary constituent fluid of the fluid mixture, via the ECU, based on the fluid property value, and activating an indicator device in response to the primary constituent fluid being the saline solution. An automated system for identifying saline solution in the aspirated fluid mixture includes the indicator device and the ECU. A computer-readable medium includes instructions, executable by a processor to identify an aspirated fluid mixture during a vitreoretinal surgery, with execution of the instructions by the processor causing the processor to perform the method.

Fluid collection systems and methods are disclosed which may utilize suction to draw fluids into containers for storage and eventual disposal. The system may utilize rigid or semi-rigid canisters to provide a chamber in which fluids may be collected under negative pressure, stored, and transported. The system may utilize disposable or reusable flexible, semi-rigid, or rigid liners for isolating fluid and liquid waste from the walls of the canister. In various embodiments, either a single canister assembly or multiple canister assemblies are mounted to a manifold, the manifold being configured to support each canister assembly and/or provide a connection to a source of suction for each canister assembly.

A filtration system for use in connection with a central vacuum system in a hospital or other medical facility. In certain aspects, the filtration system comprises a removable filter for removing contaminants; a fitting adapted for connection to a central vacuum source/system which provides constant suction, which fitting is positioned between the filter and the central vacuum source; a flow control valve positioned between the filter and the fitting; wherein the relative positions of the fitting, flow valve and filter prevent contaminants from being discharged into the central vacuum system. In other aspects, the system provides variable filter life based upon variable flow.

A medical drain sensor is provided located in a region of a drain tube which has turbulent or re-circulatory exudate flow. Means are provided in some embodiments to promote or enhance such flow.

Devices and methods for collecting and sensing fluid flow are provided.

An automatic drainage device comprises a drainage container separated by a partition plate into a fluid storage cavity provided with a connecting pipe and a fluid discharge channel provided with a fluid discharge outlet. The partition plate is provided with a fluid drainage outlet that connects the fluid storage cavity to the fluid discharge channel. The device further comprises a movable gasket disposed below the partition plate for closing the fluid drainage outlet, and a control device comprising a remote control receiving module or a control device configured to monitor a liquid level in the fluid storage cavity, to move the movable gasket to open or close the fluid drainage outlet. The automatic drainage device remotely activates the control device by a remote control receiving module or by monitoring the status of the liquid level, to control the opening and closing of the fluid drainage outlet.