The present invention relates to a negative pressure wound therapy device, system and method. The negative pressure wound therapy device is connected with a dressing, and comprises a housing, a control circuit board, a pump, and an aspiration conduit. The pump generates negative pressure. The pump may comprise a voltage-actuated deformation element (such as piezoelectric vibration element) to push fluid from an aspiration end to a discharge end. The aspiration conduit has a pump end and a dressing end. The pump end is fluidly connected to the aspiration end of the pump, and the dressing end is fluidly connected to the dressing used for covering a wound. The control circuit board is disposed in the housing, controls the pump to generate the negative pressure in the aspiration conduit, and applies negative pressure to the wound covered by the dressing via the aspiration conduit.

Embodiments of a reduced pressure system and methods for operating the system are disclosed. In some embodiments, the system can include one or more processors responsible for various functions associated with various levels of responsiveness, such as interfacing with a user, controlling a vacuum pump, providing network connectivity, etc. The system can present GUI screens for controlling and monitoring its operation. The system can determine and monitor flow of fluid in the system by utilizing one or more of the following: monitoring the speed of a pump motor, monitoring flow of fluid in a portion of a fluid flow path by using a calibrated fluid flow restrictor, and monitoring one or more characteristics of the pressure pulses. The system can provide external connectivity for accomplishing various activities, such as location tracking of the system, compliance monitoring, tracking of operational data, remote selection and adjustment of therapy settings, etc.

Fluid introduction into the patient during surgery can be tracked more accurately. For example, saline is often introduced to a patient to clean an operating site. The saline is taken from a sterile bucket and introduced to the patient. In one described approach, the system senses the volume or weight of fluid in the sterile bucket and determines any decrease in the volume or weight to be an introduction of fluid to the patient. If, however, additional saline is added to the bucket, that addition is not counted in the fluid tracking and the further decrements from that new fluid amount is what is used to track fluid addition to the patient.

A surgical drain tray assembly includes a fluid impermeable first layer and a porous second layer positioned on the fluid impermeable first layer. The fluid impermeable first layer includes a drain outlet, a basin, and a sloping surface angled toward the basin, the drain outlet being positioned within the basin. The porous second layer may be formed of a foam material and includes a top work surface. Fluids spilled onto the work surface pass through the porous second layer to the fluid impermeable first layer. The sloping surface of the fluid impermeable first layer conveys the fluids toward the basin for draining through the drainage outlet.

A skin cleansing device has a base body and a removable cleansing head. The base body houses a vacuum pump and has a mount for connecting to the removable cleansing head. The mount has an opening into the base body and a support surface. The removable cleansing head has a collection portion and a mounting portion. The collection portion defines an inlet and an internal cavity. The mounting portion has a stem defining a channel fluidly connected to the internal cavity. The cleansing head is removably connectable to the base body with the stem being configured to be received in the opening of the mount. The vacuum pump is configured to generate a fluid flow through the internal cavity and the channel into the base body such that a suction force is generated at the inlet.

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.

Disclosed is a covering/lid assembly having a separate first compartment, a second compartment, or both a first and a second compartment, and a button and/or dimple situated on the top side of each compartment. Each compartment will comprise a top side and a bottom side, the bottom side of at least one of the compartments comprising a frangible material. The first or second compartment may comprise a first or a second material. The first material may comprise a red blood cell or blood coagulant or a red blood cell flocculant. Where the first compartment comprises a red blood cell or blood coagulant material, the second compartment will comprise a red blood cell flocculant material. The material from each compartment may be selectively released upon compressing the dimple and/or button of the top side of the respective compartment. A collection and/or biological waste management and disposal system is presented, comprising a covering/lid assembly as described, and a collection container. The covering/lid may include a perimeter having a threaded and/or snap-on assembly suitable for securely attaching the covering/lid assembly to a collection canister. The collection and/or biological waste management and disposal system may include a container comprising a red blood cell flocculant and saline solution. This container may be detachably secured to the canister or provided as a separate accessory to the system.

Systems and methods for pumping milk from a breast, wherein the milk is expressed from the breast under suction and milk is expulsed from the pumping mechanism to a collection container under positive pressure.

Systems and methods for pumping milk from a breast, wherein the milk is expressed from the breast under suction and milk is expulsed from the pumping mechanism to a collection container under positive pressure.

A breast pump system comprises at least one wearable milk collection hub connected via an air line to a combined external air pump and control unit. Each milk collection hub comprises: (a) a breast shield made up of a breast flange and a nipple tunnel; (b) a flexible diaphragm that is configured to prevent milk from reaching the external air pump; (c) an outer shell that is configured to removably attach to the breast shield, such that, when attached, the breast shield and outer shell form a vessel for collecting milk; and (d) a diaphragm cap that is configured to be secured over the diaphragm, forms part of the front face of the outer shell, and includes a port connected to the air line.