A device for placing a lung in a variety of different inflation states using positive air pressure. An exemplary device includes a housing and an air supply component. The housing includes a platform receives at least one of a synthetic lung or a real lung. The platform is at the same air pressure as a surrounding environment. The air supply component is located within the one or more internal cavities of the housing. The air supply component inflates the synthetic lung or the real lung with positive pressure.

To reduce the suffering of the patient and enable easier removal of excess fluid such as pleural effusion fluid from the chest space, the disclosure provides a catheter for chest drainage intended for removal of excess fluid from a chest space of a living body and to be placed in the living body in such a manner as to extend from an inside of the chest space to an outside of the living body. The catheter includes a passage member formed of a flexible sheet and having a passage through which the excess fluid is to be drained, and an indwelling member formed of an elastic body and provided at a proximal end of the passage member. The indwelling member has an inlet that allows the excess fluid to flow through. The indwelling member includes a retaining portion spreading in a flange shape and being retainable at a chest wall.

This disclosure describes devices, systems, and methods related to therapy devices including pumps that are operable in multiple operating modes. An exemplary wound therapy device includes a pump configured to be worn by a user and a controller coupled to the pump and configured to transition the pump from operating in a first operating mode to operating in a second operating mode responsive to a pressure of the wound therapy device satisfying a first pressure threshold. The first operating mode is associated with a first drive voltage that is different from a second drive voltage associated with the second operating mode.

Medical implants including sensors are described. The implant may have a flexible shell with a base, wherein the plurality of sensors may be incorporated onto and/or into the shell. The plurality of sensors may be distributed at different locations of the shell. Each sensor of the plurality of sensors may be configured to measure one or more parameters such as, e.g., temperature and/or pressure, and may comprise an electromagnetic coil useful for wireless transmission of data. Each sensor may be configured to transmit data at a frequency different from the frequency of one or more of the other sensors, may be configured to transmit data at a time different from a time data is transmitted by one or more of the other sensors, and/or may include a device identifier different from the device identifier of one or more of the other sensors.

A system comprising a multi-sensor catheter for monitoring a cardiac hemodynamic condition, e.g. heart failure. The multi-sensor catheter comprises multi-lumen catheter tubing, first and second optical pressure sensors, and respective optical fibers and connectors. For right heart and pulmonary artery catheterization, a flow-directed multi-sensor catheter comprises a guidewire lumen, inflatable balloon tip, and sensor locations are configured for placement of a sensor in each of the right atrium and pulmonary artery, for measurement of central venous pressure in the right atrium and a pulmonary artery pressure. An optical fiber for oximetry may be included. The outside diameter is small enough for insertion through a vein of the arm. For monitoring of a cardiac shunt, sensors are configured for measuring pressures upstream and downstream of the cardiac shunt, e.g. in left and right atria, or left atrium and coronary sinus.

The present invention discloses a technique for determining a position of a distal end of a probe relative to a blood vessel. The method comprises receiving a first pressure pattern comprising a plurality of pressure values being indicative of a pressure of a fluid when the distal end of the probe is located inside the blood vessel, processing the first pressure pattern, and determining at least one adaptive threshold and/or a tendency indication. The adaptive threshold is indicative of a transition from a first position state to a second position state, or vice versa. The tendency indication is indicative of a certain trend of the pressure pattern. The first position state defines an in-blood vessel condition in which the distal end of the probe is located inside the blood vessel and the second position state defines at least one exit condition in which the distal end of the probe is located at least partially outside the blood vessel.

A dressing for treating a tissue site with negative pressure may comprise a cover having an adhesive, a manifold, a perforated polymer film, and a perforated silicone gel having a treatment aperture. The cover, the manifold, the perforated polymer film, and the perforated silicone gel may be assembled in a stacked relationship with the cover and the perforated silicone gel enclosing the manifold. The perforated polymer film may be at least partially exposed through the treatment aperture, and at least some of the adhesive may be exposed through the perforated silicone around the treatment aperture.

A system includes (i) a solenoid valve, positioned between a handle of a probe, and an aspiration line coupled with the handle for aspirating fluids from the probe, the solenoid valve includes at least a solenoid coil and a plunger movable by the solenoid coil, (ii) a sensor, positioned between the handle and the aspiration line and configured to produce a signal indicative of a fluid metric in the aspiration line, and (iii) a controller, configured to identify, based on the signal, a vacuum surge in the aspiration line, and, in response to identifying the vacuum surge, to apply at least one current to the solenoid coil to selectively move the plunger between a first position and a second position, and to selectively maintain the plunger in the first position and the second position.

A method includes receiving, from a primary pressure sensor, a pressure measurement indicative of a pressure of a patient cavity and controlling, by an insufflator, a supply of the insufflation fluid to the patient cavity based on the pressure measurement from the primary pressure sensor. The method further includes delivering, by a trocar, the supplied insufflation fluid to the patient cavity via an access port, wherein: the access port comprises a seal and a retractor; and the access port facilitates access therethrough to the patient cavity.

A hemostasis pressure device is disclosed. In one embodiment, the hemostasis pressure device includes a reusable component and a disposable cuff. The disposable cuff includes a pre-inflated pad configured to be placed at an access site on a patient. A knob secured to the reusable component is configured to control the pressure applied to the pre-inflated pad, providing incremental, fine-tuned control of pressure applied to the access site to achieve patent hemostasis.