摘要:
The invention pertains to flexible devices used for zero-heat-flux, deep tissue temperature measurement, especially to disposable temperature measurement devices. Such a device is constituted of a flexible substrate. An electrical circuit is disposed on a side of the substrate. The electrical circuit includes first and second thermal sensors disposed, respectively, on first and second substrate layers. A heater trace is disposed on the first substrate layer with the first thermal sensor. The first and second substrate layers are separated by a flexible layer of insulation disposed between the first and second substrate layers. The heater trace defines a heater with a central portion that operates with a first power density and a peripheral portion around the central portion that operates with a second power density greater than the first power density.
摘要:
A forced air warming unit has a casing with inlet and outlet openings. The casing encloses a scroll housing with a curved inside surface in which a blower is disposed. A circuit board in the casing encloses the blower in the scroll housing. At least one opening penetrates the circuit board. A heater plate is disposed between the circuit board and the blower. The blower draws air through the inlet opening, along a first side of the circuit board through the at least one opening into the scroll housing. The blower also forces air along a second side of the circuit board which faces the scroll housing, through air passages in the circuit board, along the first side through the at least one opening, into the scroll housing. The blower accelerates air along the curved inside surface and past the heater plate. Heated, pressurized air exits through the outlet opening.
摘要:
An infusion unit includes a heating unit with opposed heating plates. A heat exchanger has a fluid flow path receivable between the heating plates to which heat is conducted by contact with the heating plates. Infusate flowing under pressure through the fluid flow path is heated by conduction from the heating plates through the fluid container. When the flow of infusate is stopped or interrupted, infusate trapped in the heat exchanger is displaced to a reservoir in the heat exchanger. Displacement of the trapped infusate reduces friction between the fluid container and the heating plates, which assists in extraction of the heat exchanger from the heating unit.
摘要:
A warming device includes a clinical garment having an inside surface supporting a convective apparatus with separately-inflatable sections, each adapted to enable a particular mode of warming. Each section has a surface or region with a permeability that varies from the permeability of a surface or region in another section.
摘要:
A bubble trap for separating and collecting air and bubbles from a high flow rate stream of infusate includes multiple flow chambers to collect air, a sensor support mounted to one of the chambers, an air vent disposed in one of the chambers, and a valve in fluid communication with the chambers to control the flow of infusate therethrough.
摘要:
A high flow rate infusion unit includes a heating unit with opposing, electrically-operated heating plates that contact a heat exchanger to heat infusate flowing therethrough. Pressure infusers on the infusion unit are operable to provide infusate at a high flow rate. A flat, elongate heat exchanger has a laminar fluid flow path receivable between the heating plates to which heat is conducted by contact with the heating plates. A bubble trap and a valve are disposed within the heat exchanger. The bubble trap collects bubbles and vents air from infusate exiting the fluid flow path, and the valve shuts off the flow of infusate if the volume of air in the bubble trap exceeds a predefined limit.
摘要:
A forced air warming unit has a casing that encloses a scroll housing with a curved inside surface. A blower is disposed in the scroll housing inside the curved surface. Inlet and outlet openings are provided in the casing. A circuit board is mounted in the casing, against the scroll housing so that the blower is enclosed in space between the scroll housing and the circuit board. At least one opening is provided through the circuit board into the space in which the blower is disposed. A tapered, elongate, arcuate heater plate is disposed in the scroll housing between the circuit board and the blower, with a relatively wide end near the outlet opening and a second, relatively narrower end near the curved inside surface. Air is conducted in response to operation of the blower through the inlet opening, along a first side of the circuit board through the one or more openings in the circuit board into the scroll housing. Air is also conducted in response to operation of the blower along a second side of the circuit board which faces the scroll housing, through air passages in the circuit board to and along the first side through the one or more openings, into the scroll housing. Air entering the scroll housing in response to operation of the blower is accelerated by the blower along the curved inside surface while being heated in response to operation of the heater plate. Heated, pressurized air exits the forced air warming unit through the outlet opening. Provision is made for connecting an air hose to the outlet opening for conducting the pressurized, heated air to a pneumatic, convective device.
摘要:
A pliable respiratory mask is provided according to the invention. The pliable respiratory mask includes a mask shell adapted to fit over a portion of a face of a person, the mask shell being formed of a pliable material selected from the group consisting of a woven fabric, a non-woven fabric, a non-woven paper, or a pliable foam material, a hose connector extending through the pliable material of the mask shell and fastened to the pliable material, and an attachment for securing the shell over a portion of the person's face.
摘要:
A device for positioning a breathing apparatus over a breathing orifice in the head of a person, the person having an occipital lobe and an axis of symmetry, includes an occipital anchor for anchoring against the head of the person beneath the occipital lobe of the person. The device further includes a forward anchor for anchoring against a forward portion of the person's head. A spring connector connects the forward anchor and the occipital anchor, and biases the occipital anchor against the head of the person beneath the occipital lobe and the forward anchor against the corresponding portion of the person's head so as to attach the device to the person's head. The occipital anchor, the forward anchor and the spring connector are substantially aligned along the axis of symmetry of the person's head. The mount is connected to the spring connector for mounting the apparatus so as to locate the apparatus over the orifice.
摘要:
An impulse compensated continuous rod warhead including a pair of end pla; an annular or cylindrical explosive charge mounted between the end plates for providing an outward exploding impulse; a plurality of continuous rods mounted about the charge, and an annular buffer assembly disposed between the charge and the rods wherein a portion of said buffer assembly has varying mass between its ends so that the explosive impulse variation from end to end is substantially evened out before accelerating the rods.