A system includes a flow sensor contained within a flow sensor housing, a base, and a seal. The base houses a controller that generates at least one operation modification signal, and the flow sensor is separable from and mountable onto the base. A bottom surface of the flow sensor housing includes the seal. The seal forms a liquid-tight engagement between the flow sensor housing and the base when the flow sensor is mounted onto the base.

Gas recirculation systems for use in endoscopic surgical procedures including a gas recirculation pump are disclosed. The gas recirculation pump may work in conjunction with an insufflator used to inflate a patient's peritoneal cavity during surgery. The gas recirculation system may recirculate a high flow rate of gas from and to the patient while filtering particulate matter out of the gas and while maintaining an adequate moisture content in the gas. The gas recirculation pump may include a disposable pump cartridge releasably connected to a pump motor. A controller may detect a fault or safety condition in the gas recirculation system based on the load placed on the pump motor.

Systems and methods for managing the pH of a dialysate fluid during hemodialysis therapy. The systems and methods adjust dialysate pH and buffer concentration to generate a predetermined total bicarbonate buffer concentration in a dialysate entering a dialyzer.

A roller clamp assembly for adjusting the fluid flow rate in a flexible infusion tube is provided. The roller clamp assembly includes a housing to receive the flexible tube, a plate slideably engaged with the housing and configured to rapidly compress the flexible tube to provide a coarse fluid flow adjustment, and a roller wheel moveable engaged with the housing and configured to provide a gradual fluid flow adjustment. The plate may be a slide plate received by grooves in an exterior wall of the housing, where the plate moves orthogonally to the flexible tube, or the plate may be a shim plate that moves along an interior wall of the housing in parallel to the flexible tube. Infusion sets and methods of adjusting fluid flow rates are also provided.

Ambulatory medical devices that provide therapy to a subject, such as blood glucose control, are disclosed. Disclosed systems and devices can transmit a request to modify blood glucose control therapy delivered to a subject. The request can be transmitted via a voice-activated control system, the ambulatory medicament pump can include a medicament reservoir, a pump controller, a wireless data interface, and/or other elements. The device can receive an indication that the request to modify therapy is approved and, in response to the indication that the request to modify the blood glucose control therapy is approved, instruct the pump controller to modify the blood glucose control therapy delivered to the subject.

A method of dialysis is provided that includes sensing the concentration of potassium in a patient's blood serum, in used dialysate resulting from treating the patient, or in both. The method involves generating a sensed value of the concentration of potassium, comparing the sensed value with one or more values stored in a memory, and generating a control signal based on the comparison. Supplemental potassium solution is infused into the treatment dialysate, based on the control signal. The comparison can be made to patient-historical data, population data, or both.

An ultrasonic medicine application device that strongly promotes medicine absorption, having a housing, a control panel and a circuit board inside the housing, a medicine supply mechanism and an ultrasonic massage mechanism on a bottom surface of the housing. The ultrasonic massage mechanism has a base panel having massage projections, and also an electrical ultrasonic vibration element, which drives the projections make high frequency ultrasonic vibration. The medicine supply mechanism is positioned between the ultrasonic massage mechanism and the circuit board, and is configured to supply medicine towards the ultrasonic massage mechanism.

Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.

A pharmaceutical product including a housing that defines a cavity, wherein the cavity stores a pharmaceutical material, and wherein the housing comprises a material configured to dissolve based on contact with a fluid, an ingestible device to encode information in a current signature, wherein the ingestible device is positioned within the housing, and a protective material that encompasses the ingestible device. The ingestible device may be attached to a flexible component, wherein the flexible component is configured to releasably secure the ingestible device within the housing.

A moisture removal and condensation and humidity management apparatus for a breathing circuit comprises a breathing circuit tubing defining a breathing gas conduit. The breathing gas has a first humidity level and a level of moisture therein. A dry gas conduit is adjacent at least a portion of the breathing gas conduit. The dry gas flow is configured to have a second humidity level lower than the first humidity level. A moisture transmission pathway is provided between the breathing gas conduit and the dry gas conduit, such that humidity in the flow of breathing gas is lowered and moisture is transferred to the dry gas flow. The moisture transmission pathway may be provided by a permeable portion which is permeable to water vapor but impermeable to liquid water, or by one or more perforations which permit drainage of liquid water from the breathing gas conduit to the dry gas conduit.