A system for rupturing a vacuum in a medical imaging device. The system includes a vacuum plug attached to the medical imaging device and configured to retain a vacuum in the medical imaging device. A puncture tool is configured to puncture the vacuum plug to rupture the vacuum in the medical imaging machine. A puncture tool retainer removably couples the puncture tool to the medical imaging device.

A compressed gas storage system that includes a pressure vessel. The pressure vessel includes a first vessel portion and a second vessel portion in fluid communication with the first vessel portion. The pressure vessel includes a third vessel portion in fluid communication with the second vessel portion. The compressed gas storage system includes a first valve positioned between the first vessel portion and the second vessel portion and a second valve positioned between the second vessel portion and the third vessel portion. The first valve allows and impedes fluid flow between the first and the second vessel portions. The second valve allows and impedes fluid flow between the second and the third vessel portions.

Fluid channel sealing devices, frangible seals, fluid circuits, associated controllers and methods of using the same are provided for controlling fluid distribution using a reconfigurable blocking element having first and second portions to establish a first configuration free of any open channels such that fluid is prevented from flowing through the channel and a second configuration where the first and second portions are separated to establish an open channel and allow fluid to pass.

A membrane puncturing mechanism comprises a first element and a second element arranged with opposing surfaces. At least one opposing surface comprises a sloping region inclined relative to the other opposing surface. The first element is moveable towards and away from the second element. A pin for puncturing a membrane is coupled to the first element such that movement of one of the pin and first element causes movement of both. A spring is operable to bias the first element towards the second element. An actuator is removably positioned between the opposing surfaces, the actuator being withdrawable from between and moveable along the opposing surfaces such that, as the actuator is withdrawn, the actuator progressively moves the first and second elements apart against the bias of the spring so as to load the spring and such that the actuator being fully withdrawn from between the opposing surfaces.

The technology disclosed herein relates to, at least in part, an enclosure vent assembly. A vent body defines a vent cavity, a first axial end, a second axial end, circumferential threads positioned towards the second axial end, and a sealing surface. The sealing surface surrounds the vent cavity and faces the second axial end. A vent is disposed in the vent body, wherein the vent extends across the vent cavity. A vent mount defines a mount opening, mating threads configured to releasably engage the circumferential threads, a facing surface about the mount opening configured to oppose the sealing surface, and a fastening feature. The fastening feature is configured to rotatably fix the vent mount to a housing.

Fluid channel sealing devices, frangible seals, fluid circuits, associated controllers and methods of using the same are provided for controlling fluid distribution using a reconfigurable blocking element having first and second portions to establish a first configuration free of any open channels such that fluid is prevented from flowing through the channel and a second configuration where the first and second portions are separated to establish an open channel and allow fluid to pass.

A blood pressure measurement system is provided that includes an inflatable cuff, a valve assembly and chamber assembly. The chamber assembly can house a gas canister for providing gas to the inflatable cuff. The valve assembly can include a valve having a high pressure cavity, a low pressure cavity, and a channel providing a gas pathway between the high pressure cavity and the low pressure cavity. The valve assembly can further include a channel cover and spring in the high pressure cavity. The spring can exert a force on the channel cover to create a seal between the high pressure cavity and the channel. The valve assembly can further include a rod extending through the channel and exerting a force on the channel cover to create a gas pathway between the high pressure cavity and the channel.

A valve assembly is provided, the valve assembly comprising a body that defines a fluid flow path between an inlet and an outlet with a frangible member between the inlet and the outlet across the fluid flow path so as to block fluid flow The valve assembly also includes a member for rupturing the frangible member, a spring biasing the rupturing member into contact with the frangible member and a member for retaining the rupturing member away from the frangible member. A magnet is spaced apart from the retaining member, and a non-magnetic sleeve is disposed between the magnet and the retaining member. The non-magnetic sleeve blocks a magnetic field provided by the magnet. Also included is a trigger for removing the non-magnetic sleeve, wherein, when the non-magnetic sleeve is removed, in use, the magnetic field attracts the retaining member to release the rupturing member to cause rupture of the frangible member.

A coupler that separates a unitary valve stem into two separate but coupled sections to isolates the thrust load from the torque load.

A valve includes a valve body having a gas inlet and a gas outlet. The valve body has an internal circumferential wall defining a gas passageway between the gas inlet and gas outlet. The inlet of the valve body is connectable to a source of pressurized gas. The valve also includes a rupture disc provided adjacent said gas inlet, wherein the ruptured disc is configured to prevent flow of gas through said inlet when intact and to allow flow of gas through said inlet when ruptured. The valve includes ribs radially extending from the internal circumferential wall, said ribs extending longitudinally in the direction to the gas outlet and from the gas inlet in a maze-type pattern. The ribs may be formed in a printed pattern to form a maze with dead-ends.