Device for simulating variable lung compliance

摘要

Device for simulating variable lung compliance, comprising a structure having two main components (3, 4) between which an artificial lung (1) is situated, the main components (3, 4) being adapted to be moved away from each other by the lung (1) when the lung is inflated and are adapted to move towards one another to force air out of the lung (1) in an exhalation phase; and a biasing means (17, 18) acting to provide a force that acts to move the two main parts (3, 4) towards one another. The biasing means comprises at least one spring (17, 18), which is selectively attachable to impose the force, upon actuation by a spring holding mechanism (22, 32).

主权项

1. A device for simulating variable lung compliance comprising:
a structure having two main components between which an artificial lung is situated; the two main components being adapted to be moved away from each other by the artificial lung when the artificial lung is inflated and adapted to move towards one another to force air out of the artificial lung in an exhalation phase; a biasing member selectively attachable between the two main components to provide a force that acts to move the two main components towards one another; a holding mechanism comprising a gripper actuatable by an actuator to move the gripper between a gripping position attaching the biasing member to the two main components and a release position disconnecting the biasing member from the two main components; and wherein the gripper comprises a hook with an inclined face facing a spring and an undercut adjacent to the inclined face, and the inclined face is adapted to abut a loop on the biasing member and guide the loop into the undercut so that the loop is caught in the undercut.