A volume of a wound is estimated using a dynamic pressure response measured during instillation of fluid to the wound using a negative pressure wound therapy system. A previously estimated wound volume may be used to detect and prevent overfill of fluid to the wound during future instillation events. For example, real-time pressure measurements may be compared to model data representative of expected pressure at a wound having a volume equal to the previously estimated wound volume, with instillation being stopped if the observed pressure varies from the expected pressure. A comparison of a total volume of fluid instilled to the wound may also be compared to the previously estimated wound volume to prevent overfill. The comparison of wound volume estimated based on an instillation event may also be compared to a wound volume estimated using other methods to provide a higher confidence wound volume estimate.

A dressing may include a manifold and a spacer fabric. The manifold may have a first side configured to face the tissue site, a second side opposite the first side, a thickness between the first side and the second side, a first portion, and a second portion. The spacer fabric may extend between the first portion and the second portion and may comprise a first layer coupled to the first portion, a second layer coupled to the second portion, and a spacer layer extending between the first layer and the second layer. The first layer and the second layer may be perpendicular to the first side of the manifold. The dressing may be configured to contract more in a first direction than in a second direction, wherein the first direction is perpendicular to an extension direction of the spacer fabric. Other dressings, apparatus, systems, and methods are disclosed.

Urine collection systems and associated methods and devices are disclosed herein. A representative system can include a urine collection device, a flow control assembly configured to direct a urine flow from the patient to the urine collection device, and a urine measurement device including a first sensor and a second sensor. The first sensor is configured to generate first sensor data based on a weight of the container, and the second sensor is configured to generate second sensor data based on the urine flow from the patient to the container. The system can further include non-transitory computer readable media having instructions that, when executed by one or more processors, cause the system to perform operations comprising determining a first patient urine output based on the first sensor data; and determining a second patient urine output based on the second sensor data.

A surgical instrument comprises a housing and a valve mounted in the housing. The valve is configured to control a flow of a fluid into or out of a surgical site in response to either a robotic actuation of the valve or a manual actuation of the valve. The valve comprises a valve shaft, a receiving member structurally coupled to the valve shaft, and a manual actuation component structurally coupled to the valve shaft and extending from the housing. The receiving member is configured to releasably couple to a driver of a robotic manipulator to receive the robotic actuation from the driver remotely controlled by a surgeon to adjust a state of the valve. The manual actuation component is configured to receive the manual actuation to adjust the state of the valve.

A wound therapy device is disclosed. The wound therapy device may include a housing for covering at least a portion of a wound and for sealing to a body surface of a patient. The housing may also include a liquid collector for retaining liquid therein and a vacuum connection for coupling to a vacuum source. The vacuum connection may be in gaseous communication with the liquid collector. The vacuum connection may be separated from the liquid collector by a liquid barrier.

The wound dressing apparatus facilitates administration of combined negative pressure and positive pressure treatment at a wound site. The wound dressing apparatus includes a wound dome having a substantially hollow dome interior, a manifold that is in fluid communication with the dome interior, a first passage adapted to connect to a negative pressure source to the dome interior, and a second passage adapted to connect to a positive pressure source to the manifold.

An irrigation fluid dispensing tool well suited for use in a combination suction and irrigation tool has a frame carrying a surge flow pump formed of a flow controller of a manipulable handgrip of the tool handle, compressible irrigation fluid reservoir, and frame where the flow controller preferably is formed of a handle lever of the handgrip that is displaceable, preferably pivotable, between one or more of a surge flow actuation position, flow obstructing actuation position, and flow initiating position. The lever actuates a valve, preferably a pinch valve, when displaced toward the flow obstructing actuation position. The lever actuates the surge pump by compressing the reservoir, preferably squeeze bulb, against the frame when the handgrip is squeezed. The lever can be assembled to the frame in a protective shipping and storage position and is movable to a tool operating position providing irrigation fluid flow control during tool operation.

The present invention relates to a negative pressure wound closure system and methods for using such a system. Preferred embodiments of the invention facilitate closure of the wound by preferentially contracting to provide for movement of the tissue. Preferred embodiments can utilize tissue grasping elements to apply a wound closing force to the tissue.

A moisture trap for removing liquid from a fluid drawn from a tissue site treated with reduced pressure and systems and methods for using the same are described. The moisture trap may include a barrier adapted to be fluidly coupled to and define an indirect fluid path between a fluid reservoir and a reduced-pressure source. The barrier may have a hydrophilic surface. The moisture trap also may include a sump adapted to receive condensation from the barrier.

A treatment system for debriding a treatment area of a tissue site and applying negative pressure is disclosed. In some embodiments, the treatment system may include an ultrasonic bubble generator fluidly coupled to a negative-pressure source, fluid source, and a dressing. Fluid may be drawn from the fluid source to the ultrasonic bubble generator, whereby micro-bubbles and ultrasonic waves may be generated in the fluid before the fluid is instilled to the dressing.