Ophthalmic surgical devices, systems, and methods for regulating aspiration from a patient's eye are provided. A vacuum pump in fluid communication with an aspiration line provides fluid aspiration from a vitreous chamber of the eye through the aspiration line. A sensor disposed adjacent to or inside the eye determines sensor data relating to an intraocular pressure (IOP). The controller receives the sensor data and regulates the aspiration in response to changes in the IOP, such as by controlling the vacuum pump. The controller may determine whether a fluid infusion to the vitreous chamber through an infusion line is below a maximum infusion level, regulate the infusion in response to the IOP being below a threshold value and the infusion being below the maximum infusion level, and regulate the aspiration in response to the IOP being below the threshold value and the infusion being at or above the maximum infusion level.

A reduced pressure treatment system includes a compressible chamber positionable beneath a foot of a user and being movable between an expanded position and a compressed position. The compressible chamber includes an inlet and an outlet. An inlet valve is in fluid communication with the inlet to prevent fluid within the compressible chamber from exiting the inlet, and an outlet valve is in fluid communication with the outlet to prevent fluid from entering the compressible chamber through the outlet. A biasing member is disposed within the compressible chamber to bias the compressible chamber toward the expanded position, and a manifold is positionable at a tissue site and in fluid communication with the inlet of the compressible chamber.

The invention relates to an ergonomic foot pedal and to apparatuses for manual ventilation. In an embodiment, the invention provides a compact and integrated foot pedal that enables a care provider to provide positive pressure ventilation to a subject's airways and lungs, and to optionally apply suction for the purpose of aspirating mucous, secretions, meconium, blood, fluids or other such materials from a patientspecifically from airways.

A process for ventilating a patient as well as a devicepatient module (20)operating according to the process, wherein, for example, a body weight value concerning an estimated body weight of the patient is transmitted to a patient module (20) intended for ventilating the patient, wherein the patient module (20) automatically selects ventilation parameters (52) fitting the body weight value on the basis of the body weight value and wherein the ventilation of the patient is carried out with the selected ventilation parameters (52).

A dual fluid injection device is provided that includes at least two syringes. A hub is provided, to which a first syringe and a second syringe are simultaneously connected. The hub includes a fluid delivery member at an end thereof for injection at a site. The first syringe and the second syringe are actuated independently at a directional control valve.

Certain aspects of the present disclosure provide a surgical system comprising a fluid output device capable of connecting to a syringe comprising a material for delivery to a body part through a cannula connected to the syringe and a controller configured to adjust a pressure of the fluid output to enable a controlled delivery of the material within the syringe at a target flow rate.

A process for ventilating a patient as well as a devicepatient module (20)operating according to the process, wherein, for example, a body weight value concerning an estimated body weight of the patient is transmitted to a patient module (20) intended for ventilating the patient, wherein the patient module (20) automatically selects ventilation parameters (52) fitting the body weight value on the basis of the body weight value and wherein the ventilation of the patient is carried out with the selected ventilation parameters (52).

A respiratory device includes a blower having an inlet and an outlet, a patient interface, and a valve including a valve member that is rotatable from a first position to a second position. The outlet of the blower is coupled to the patient interface so that positive pressure is provided to a patient's airway via the patient interface when the valve member is in the first position. The inlet of the blower is coupled to the patient interface so that negative pressure is provided to the patient's airway via the patient interface when the valve member is in the second position. The valve member is rotatably oscillated back and forth when the valve member is in the first position and when the valve member is in the second position so that oscillations in the positive pressure and negative pressure, respectively, are provided to the patient's airway.

In one exemplary mode, a phacoemulsification system includes a phacoemulsification probe to be inserted into an eye, an irrigation line to provide irrigation fluid into the eye, an aspiration line to convey aspiration fluid from the eye, an aspiration pump to pump the aspiration fluid from the eye, a pump controller to control a flow direction and rate of the aspiration pump, and an aspiration rate user input device to provide a signal indicative of user actuation of the aspiration rate user input device, wherein the pump controller is configured to receive the signal provided by the aspiration rate user input device, and reverse the flow direction and set the flow rate of the aspiration pump at which to pump the aspiration fluid into the eye, the flow rate in the reverse flow direction being set responsively to an actuation rate at which the aspiration rate user input device is actuated.

A respiratory device includes a blower having an inlet and an outlet, a patient interface, and a valve including a valve member that is rotatable through a first angular displacement in a first direction from a first position to a second position. The outlet of the blower is coupled to the patient interface so that positive pressure is provided to a patient's airway via the patient interface when the valve member is in the first position. The inlet of the blower is coupled to the patient interface so that negative pressure is provided to the patient's airway via the patient interface when the valve member is in the second position. The valve member is rotatably oscillated back and forth when the valve member is in the first position and when the valve member is in the second position so that oscillations in the positive pressure and negative pressure, respectively, are provided to the patient's airway.