A method of determining the status of a fluid cooled microwave ablation system is provided including providing an electrical current to a pump to pump fluid through an ablation system along a fluid path to cool the ablation system, measuring an electrical current drawn by the pump, and determining a status of the ablation system based on the measured electrical current. In another aspect of the disclosure, an ablation system is provided including an ablation probe defining a fluid path for circulation of fluid therethrough, a generator configured to supply energy to the ablation probe for treating tissue, a pump configured to pump fluid through the fluid path of the ablation probe to cool the ablation probe, a sensor configured to measure an electrical current drawn by the pump, and a computing device configured to determine a status of the ablation system based on the measured electrical current.

Methods and systems for automatically pulsing different aspiration levels to an ocular probe are disclosed. The probe may be a phacoemulsification probe. A first aspiration level, supplied by a first pump, may be applied to the probe simultaneously with ultrasonic energy. A second aspiration level, supplied by a second pump, may be automatically switched from the first aspiration level, and applied to the probe in a pulsed manner.

Ambulatory medicament devices that provide therapy to a subject, such as blood glucose control, are disclosed. Disclosed systems and methods can implement one or more features that improve the user experience, by modifying delivery of therapy to a subject after determining that a possible occlusion exists in a medicament delivery system, monitoring the status of an ambulatory medical device and the health condition of a subject that receives therapy from the ambulatory medical device and annunciating alarm condition when necessary, selectively muting alarm annunciations while a Do Not Disturb mode is activated, implementing various power saving modes to save power, controlling operation of the device and medicament delivery based on the user gesture controls, and controlling medicament delivery based on a condition of the ambulatory medicament device.

A unilaterally driven drug infusion device with multiple infusion modes includes a reservoir, a piston, a screw, a driving unit, at least one driving wheel provided with teeth, a linear actuator, a reset unit, and a control unit. The piston is arranged in the reservoir. The driving unit includes a rotating shaft and a driving member, and the driving member includes a driving end. The linear actuator and the reset unit are respectively connected to the driving member. The control unit controls the linear actuator or the reset unit to apply different driving powers on the driving member to make the driving member have a variety of different operating modes.

A system for monitoring a patient includes one or more processors and a sensor device implemented in circuitry. The system is configured to measure, using the sensor device, a blood glucose status of the patient, and determine, using one or more processors, an initial insulin dose for the patient based on the blood glucose status of the patient. The system is further configured to optimize the initial insulin dose for the patient, based at least in part on a correction factor, to create an optimized insulin dose for the patient. The system is configured to facilitate therapy, using the one or more processors, based on the determined optimized insulin dose.

A controller assembly of a fluid delivery apparatus includes a body component and a plunger component slidably coupled to the body component. The plunger is positionable between a first position in which the plunger is nearest to the body component, and a second position in which the plunger component is furthest from the body component. A bias assembly positioned between the body component and the plunger component applies a two stage force profile to the plunger component. The bias assembly includes a first and a second biasing member. In the first position, the first and second biasing members apply first and second forces profiles, respectively, to the plunger component. In the second position, the first biasing member is prevented from applying the first force profile to the plunger component, and the second biasing member applies the second force profile to the plunger component.

A system for regulating fluid flow having a processor configured to reduce image noise is provided. The system includes an image sensor to capture an image of the drip chamber. The processor captures the image of the drip chamber using the image sensor, performs an edge detection on the image to generate a first processed image, and performs an AND-operation on a pixel on a first side of an axis of the first processed image with a corresponding mirror pixel on a second side of the axis of the first processed image to generate a second processed image.

A flow control apparatus includes a body, a door, a drip chamber holster, and a valve. The door is pivotally coupled to the body. The drip chamber holster is coupled to one of the body or the door to retain a drip chamber. The valve is disposed within the body and is configured to receive a fluid line coupled to the drip chamber when the door is in an open position. The valve is operatively coupled to the door to secure the fluid line within the valve when the door is in a closed position.

A sensor for use in a fluid flow application is provided. The sensor includes an inlet chamber configured to receive a fluid flow from a first conduit, an outlet chamber configured to provide the fluid flow to a second conduit, and a membrane separating the inlet chamber from the outlet chamber, the membrane including a fluid passage to allow the fluid flow from the inlet chamber to the outlet chamber. The sensor also includes a circuit component disposed on the membrane, having an electrical property configured to change according to a deformation of the membrane, and a conductor formed on a substrate and coupled with the circuit component, to provide an electrical signal based on a change in the electrical property of the circuit component. The membrane includes an epitaxial layer formed on the substrate. Methods for fabricating and using the above sensor are also presented.

A dispenser includes a container with an endwall and a cap covering the endwall. The cap has an aperture and a first film covering the aperture. A hood over the cap has a barrel defining a bore which is coaxially aligned with the aperture, a second film sealing the bore, and a gasket compressed behind the second film. A spike is carried for movement in the barrel between retracted and advanced positions. The dispenser has first and second conditions. In the first condition, the first and second films are against each other and seal the aperture and barrel, and in the second condition, the first and second films are away, unsealing the aperture and the barrel. When the dispenser is in the second condition and the spike moves from the retracted position to the advanced position, the spike pierces the endwall.