In one embodiment, a phacoemulsification system includes a phacoemulsification probe configured to be inserted into an eye, and including a needle, a horn configured to support the needle, and an ultrasonic actuator connected to the horn and configured to vibrate the needle to emulsify a lens of the eye, an aspiration line partially disposed in the needle, a pumping sub-system connected to the aspiration line and configured to remove fluid and waste matter from the eye via the aspiration line, a valve disposed in the aspiration line and configured to control fluid connectivity in the aspiration line, a sensor configured to provide a signal indicative of a fluid metric in the aspiration line, and a controller configured to find an activation status of the ultrasonic actuator, and selectively control the valve responsively to the fluid metric and the activation status of the ultrasonic actuator.

The present invention relates to a system, method and corresponding computer program for milk ejection reflex (MER) determination, the system comprising a breast shield arrangement (1) for a breast pump (2) configured to be attached on a first breast of a female, a physiological sensor unit (4) for receiving a physiological reception signal from the second breast, which is opposite to the first breast, wherein the physiological reception signal is indicative of fluid contents in the second breast, and wherein the system is configured to determine a milk ejection reflex based on a change in fluid contents in the second breast. It finds particular application during and in connection with breastfeeding and allows for direct detection of the beginning of the milk flow in the breast, i.e. the occurrence of the MER, without delay and with a high degree of precision.

A blood-purification-treatment support system is capable of making an accurate judgement of whether or not any treatment conditions for blood purification treatment should be changed. The blood-purification-treatment support system is capable of supporting blood purification treatment. The system includes a storage device that stores patient-specific patient data that are acquired on a plurality of days including at least no-treatment days on which blood purification treatment is not conducted, an estimating device that compares the patient data for the plurality of days stored in the storage device with one another and estimates a pre-treatment patient state regarding blood purification treatment, and a judging device that judges from the pre-treatment patient state estimated by the estimating device whether or not any treatment conditions for blood purification treatment should be changed.

Dressings for treating a tissue site with negative pressure are disclosed, which may include a dressing having at least three layers assembled in a stacked relationship. In one example embodiment, a first film may comprise a non-porous material and a plurality of fluid restrictions. A first manifold layer may be adjacent to the first film and may comprise a second film of a transparent material having blisters and a manifold area. The first manifold layer may further comprise apertures configured to allow fluid transfer through the second film. A second manifold layer may be adjacent to the first manifold layer and may comprise foam having a contact area that is less than the manifold area of the first manifold layer.

Devices and methods for allowing for improved assisted ventilation of a patient. The methods and devices provide a number of benefits over conventional approaches for assisted ventilation. For example, the methods and devices described herein permit blind insertion of a device that can allow ventilation regardless of whether the device is positioned within a trachea or an esophagus.

Connectors and devices for flexible negative pressure systems are described.

This application describes a method and device for safely, effectively, perfusing distal to occluded arteries, based on diagnostic information from the catheter-perfusion-system based on sensors, effectors, controllers and algorithms included, with particular attention to the specific characteristics of the tissue and the fluid. Key actionable physiological values for the tissue can be calculated and derived. They include the auto-regulatory curve, with Upper and Lower limits of Auto regulation, vascular reserve, and collateral flow reserve and as auto-regulation exhaustion.

A system for modulating delivery of a fluid medium includes an injector for injecting the fluid medium during an injection cycle, a delivery catheter including a conduit for delivering the fluid medium, a manifold disposed in a fluid medium flow path between the injector and the delivery catheter, and a pulsatile generator. The pulsatile generator is configured to apply a pulsatile force to the fluid medium defined by a plurality of duty cycles during the injection cycle, each of the duty cycles including a first pressure level and a second pressure level that is lower than the first pressure level.

A blood filtration system can reduce the amount of plasma constituents (e.g., water and/or electrolytes) in the blood of the patient, and accordingly increase the hematocrit value of the patient. The blood filtration system (e.g., a controller, or the like) can determine a hematocrit value of a patient. The blood filtration system can determine a venous pressure of vasculature of a patient. The blood filtration system can compensate for pressure head in a component of a blood circuit (e.g., a withdrawal line of a catheter), for example to improve the accuracy of the venous pressure determination. The blood filtration system can determine one or more resistance characteristics of a blood circuit for the blood filtration system. The resistance characteristics can correspond to a resistance to a flow of blood through a component of the blood circuit.

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.