A method for protecting a pressure transducer from fluid pressure damage using a pressure isolation mechanism is disclosed. The method includes associating the pressure transducer with an isolation port of the pressure isolation mechanism, placing a pressurizing device for delivering fluid under pressure in fluid connection with an inlet port of the pressure isolation mechanism, and actuating the pressurizing device to cause fluid flow in the inlet port such that a free floating, fluid flow responsive valve member positioned in an internal cavity of the pressure isolation mechanism engages a seal seat therein to attain a closed position, preventing fluid flow between the inlet port and the isolation port and thus prevent overpressure in the isolation port. Hemodynamic pressure signals read with the pressure transducer may be transmitted at least in part through a body of the valve member, or a portion thereof, when in the closed position.

A fluid injection system and a fluid verification system for confirming that a syringe, containing a fluid for injection, is fully filled with fluid and neither has free space (i.e., air) near the distal end thereof when the syringe is provided in an upright position nor contains air bubbles. Imaging processing techniques and systems are also provided to determine various injection parameters and to verify the type and certain properties of fluid that is present within a syringe.

An infusion device (1) for acting onto a tube set (2) to transport a medical fluid through the tube set (2) comprises a first housing element (10) constituted to receive a tube section (200, 201) of the tube set (2) and a second housing element (11) being movable with respect to the first housing element (10) such that, in a closed position of the second housing element (11), the first housing element (10) and the second housing element (11) are constituted to receive the tube section (200, 201) in between each other. A sensor device (3) is arranged on the first housing element (10) and having a sensor element (30) for measuring a force on the tube section (200, 201) of the tube set (2). Herein it is provided that the sensor device (3) is arranged on the first housing element (10) in an elastically displaceable manner, wherein the sensor device (3) is supported on the first housing element (10) via at least one spring element (33). In this way an infusion device is obtained which may be less prone to variations in the squeezing of a tube section in between the sensor element and a movable housing element, potentially reducing the effort for calibrating infusion devices and increasing the reliability of pressure measurements on a tube section.

A fluid injection system and a fluid verification system for confirming that a syringe, containing a fluid for injection, is fully filled with fluid and neither has free space (i.e., air) near the distal end thereof when the syringe is provided in an upright position nor contains air bubbles. Imaging processing techniques and systems are also provided to determine various injection parameters and to verify the type and certain properties of fluid that is present within a syringe.

A fluid injection system and a fluid verification system for determining the operating status of the fluid injection system, for example by confirming that a fluid reservoir, containing a fluid for injection, is fully filled with fluid and has free space (i.e., air) near the distal end thereof when the syringe is provided in an upright position nor contains air bubbles. Imaging processing techniques, methods, and systems are also provided to determine various injection parameters and to verify the type and certain properties of fluid that is present within the fluid reservoir.

A fluid tube is disclosed herein. The breathing circuit tube has a wall which comprises a hollow geometry. The wall defines a passageway with a central longitudinal axis therethrough. The wall is expandable and contractible to adjust a diameter and a length of the passageway. The wall includes a partition and one or more corrugations that expand and contract to adjust the diameter and length of the passageway. The corrugations extend between terminal end portions of the wall.

A fluid tube is disclosed herein. The breathing circuit tube has a wall which comprises a hollow geometry. The wall defines a passageway with a central longitudinal axis therethrough. The wall is expandable and contractible to adjust a diameter and a length of the passageway. The wall includes one or more corrugations that expand and contract to adjust the diameter and length of the passageway. The corrugations extend between terminal end portions of the wall.

A fluid injection system and a fluid verification system for confirming that a syringe, containing a fluid for injection, is fully filled with fluid and neither has free space (i.e., air) near the distal end thereof when the syringe is provided in an upright position nor contains air bubbles. Imaging processing techniques and systems are also provided to determine various injection parameters and to verify the type and certain properties of fluid that is present within a syringe.

An infusion pump determines whether a pressure change is due to backpressure associated with a patient infusion line set associated with the intravenous infusion line or due to static pressure associated with a fluid container providing a fluid to the intravenous infusion line, determines that the pressure change did not result from an occlusion event based on the pressure change occurring over the first threshold period of time and, after determining that the pressure increase did not result from an occlusion event, the pump provides an indication that the pressure change is associated with the medical container or patient infusion line set and adjusts a motor speed of the pump or an amount of compression provided to the intravenous infusion line.

A fluid tube is disclosed herein. The breathing circuit tube has a wall which comprises a hollow geometry. The wall defines a passageway with a central longitudinal axis therethrough. The wall is expandable and contractible to adjust a diameter and a length of the passageway. The wall includes one or more corrugations that expand and contract to adjust the diameter and length of the passageway. The corrugations extend between terminal end portions of the wall.