摘要:
A disposable respiratory mask is provided according to the invention. The disposable respiratory mask includes a bag having a first opening and a second opening and may have an optional vent hole, adhesive strips around a perimeter of the first opening, the adhesive strips being capable of attaching the mask to a face region around a nose, an interface tube having an optional vent hole, the proximal end of the interface tube capable of being inserted into the second opening of the bag, the distal end of the interface tube capable of connecting to a gas supply hose, and a retainer ring capable of being positioned over the bag and the interface tube to hold the bag on an outer surface of the interface tube when the interface tube is inserted into the second opening of the bag, wherein a gas is supplied to the mask through the gas supply hose, with the bag being inflated by the gas and the bag is therefore positioned away from a wearer's face.
摘要:
A continuous positive airway pressure (CPAP) system in combination with 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, the device including an occipital anchor for anchoring against the head of the person beneath the occipital lobe of the person. The device further including 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:
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:
A respirator mask seal and shell are provided according to one embodiment of the invention. The respirator mask seal and shell includes a mask shell having a face opening, a slot for air passage, and at least one attachment portion spaced around the face opening. They also include a movable interface having a hose connector and a contoured opening adapted to fit against the mask shell. The contoured opening is slidable over the slot and is capable of being positioned on the mask shell. The mask seal has a flexible sidewall having distal and proximal ends and includes a rounded outer seal portion located on the distal end of the sidewall, a rounded inner seal portion located between the distal and proximal ends, and a support ring embedded in the sidewall. The inner seal portion is thicker than the outer seal portion and is non-continuous. The support ring includes at least one attachment portion adapted to engage the at least one attachment portion of the mask shell. The mask seal is capable of being removably affixed to the mask shell. The movable interface is capable of being positionally adjusted on the mask shell and the mask seal is capable of being inwardly deformed by contact with a face region of the user.
摘要:
A heat exchanger has a laminar fluid flow path receivable between the heating plates of a high flow rate infusion unit to which heat is conducted by contact with the heating plates. A bubble trap and a valve are integrated with the heat exchanger. The bubble trap collects air from the infusate exiting the laminar flow path, and includes an air vent in contact with the infusate that vents the air from the bubble trap. The valve shuts off the flow of infusate if air is detected in the bubble trap.
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:
A respiratory mask is provided according to the invention. The respiratory mask includes a respiratory interface adapted to input and output a gas to a respiratory system of a person, a hat having a substantially semi-hemispheric portion adapted to fit over a head of the person and a brim extending outwardly from at least a front portion of the semi-hemispheric portion, and a hose having a proximal end connected to the respiratory interface and passing through the brim and attached to the semi-hemispheric portion, wherein the brim positions and retains the hose, with a distal end of the hose capable of being connected to a gas supply.
摘要:
A method and apparatus for calculating the area of an image, including the steps of selecting an image and determining a first radial line segment from the center of the image. The second step is locating at least one local minima along the first radial line segment, the minima being located by measuring the average brightness for a region immediately adjacent to it. The darkest region of the image is followed through a plurality of angles theta covering 360 degrees about the center by finding the local minimum on a ruler which is closest to the local minimum of a radial line segment adjacent to the segment for angle theta -1. The area is determined by summing the areas of individual wedge shaped slices defined by theta and theta -1.
摘要:
A zero-heat-flux, deep tissue temperature measurement system measures internal body temperature by way of a probe having a heater and thermal sensors arranged in a zero-heat-flux construction. The measurement system includes control mechanization that determines heater and skin temperatures based upon data obtained from the probe and uses those temperatures to calculate a deep tissue temperature. The measurement system includes a signal interface cable having a connector where a probe can be releasably connected to the system. The cable and attached connector are a removable and replaceable part of the system, separate from the probe. The measurement system provides an output signal imitating a standard input signal configuration used by other equipment.