Abstract: A warming device includes a poncho-type patient gown having a major body portion with inside and outside surfaces, a central panel in the major body portion, opposing sleeve portions in the central panel, and a head opening in the central panel, between the sleeve portions. An inflatable convective warming apparatus is supported on a surface of the patient gown, extending from a lower edge of the patient gown at least to the head opening.

Abstract: An underbody convective warming blanket includes a duct that is separate from, but in fluid communication with, interior space of the underbody convective warming blanket. The duct may be deployed to provide an air circulation conduit to shunt air around the air distribution structure in the interior space. The duct may be a flexible tube having a first end coupled to a first duct port in the underbody convective warming blanket near a first end of the underbody convective warming blanket and a second end to be coupled to a second duct port in the underbody convective warming blanket near a second end of the underbody convective warming blanket. An underbody convective warming blanket may include a midsection with an elongate columnar configuration which transitions at an end, or at each end, to a plinth-like configuration.

Abstract: 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.

Abstract: A warming device includes a clinical garment having an inside surface supporting one or more convective apparatuses disposed to warm a patient perioperatively. The warming device may include an upper body convective apparatus supported on the inside of the clinical garment between its sleeves. The construction of the upper body convective apparatus includes pulling elements that draw folded components of the apparatus from sleeves of the clinical garment when pulled. The warming device may include a multi-section convective apparatus disposed longitudinally in a lower portion of the clinical garment and having separately inflatable sections, each for enabling a particular mode of warming. The construction of the multi-section convective apparatus includes a therapeutic warming section with an inlet port positioned for convenient and safe access when the lower portion of the warming device is disposed to drape over the lower limbs of a person while the therapeutic warming section is being operated.

Abstract: A clinical garment having a lower hem and sleeves includes permeable surfaces inside near peripheral portions, a duct in communication with the permeable surfaces, and at least one inlet port opening into the duct. When worn by a patient, the permeable surfaces are positioned adjacent the patient's limbs. Warmed pressurized air may be introduced into the duct and conducted to the permeable surfaces. The warmed pressurized air circulates through the permeable surfaces to warm the adjacent limbs.

Abstract: A perioperative warming device includes a clinical garment having an inside surface supporting a convective apparatus with stacked sections. One section of the convective apparatus is adapted to provide comfort warming by convection. Another section of the convective apparatus is adapted to provide therapeutic warming by convection.

Abstract: A surgical barrier device includes an inflatable thermal blanket with an attached surgical drape. The inflatable thermal blanket is inflatable through an inlet by a thermally-controlled inflating medium. An aperture array on the undersurface of the inflatable thermal blanket exhausts the thermally controlled inflating medium from the inflatable thermal blanket. The surgical drape extends from the inflatable thermal blanket and is sized to substantially cover the entirety of the patient's body. Where patient access is required, that drape has an opening to provide access to a surgical site.

Abstract: A warming device includes a clinical garment having an inside surface supporting a convective apparatus with an inflatable dog-bone shaped section framed by an outline section.

Abstract: A warming device includes a clinical garment having an inside surface supporting one or more convective apparatuses disposed to warm a patient perioperatively. The warming device may include an upper body convective apparatus supported on the inside of the clinical garment between its sleeves. The construction of the upper body convective apparatus includes pulling elements that draw folded components of the apparatus from sleeves of the clinical garment when pulled. The warming device may include a multi-section convective apparatus disposed longitudinally in a lower portion of the clinical garment and having separately inflatable sections, each for enabling a particular mode of warming. The construction of the multi-section convective apparatus includes a therapeutic warming section with an inlet port positioned for convenient and safe access when the lower portion of the warming device is disposed to drape over the lower limbs of a person while the therapeutic warming section is being operated.

Abstract: Both the flow rate and the temperature of the air exiting a forced air warming unit are regulated in response to a single act or operation of a single element of control on a manually-operated remote control.

Abstract: A warming device includes a clinical garment having an inside surface supporting a convective apparatus with multiple separately inflatable sections, each adapted to enable a particular mode of warming.

Abstract: 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.

Abstract: A warming device includes a clinical garment having an inside surface supporting a convective apparatus with comb-shaped, interleaved, separately inflatable sections, each adapted to enable a particular mode of warming.

Abstract: A zero-heat-flux DTT measurement device is constituted of a flexible substrate supporting an electrical circuit including a heater trace defining a heater, thermal sensors, and a thermal sensor calibration circuit.

Abstract: 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.

Abstract: A method for warming a person perioperatively using a warming device including a clinical garment having an inside surface supporting a convective apparatus with stacked, separately-inflatable sections includes inflating one of the stacked sections of the convective apparatus to provide comfort warming by convection or inflating another of the stacked sections of the convective apparatus to provide therapeutic warming by convection.

Abstract: 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.

Abstract: Both the flow rate and the temperature of the air exiting a forced air warming unit are regulated in response to a single act or operation of a single element of control on a manually-operated remote control.

Abstract: A surgical barrier device includes an inflatable thermal blanket with an attached surgical drape. The inflatable thermal blanket is inflatable through an inlet by a thermally-controlled inflating medium. An aperture array on the undersurface of the inflatable thermal blanket exhausts the thermally controlled inflating medium from the inflatable thermal blanket. The surgical drape extends from the inflatable thermal blanket and is sized to substantially cover the entirety of the patient's body. Where patient access is required, that drape has an opening to provide access to a surgical site.

Abstract: An inflatable convective pad for warming a person during surgery has two ends, two sides, and at least two openings, each located in an area of the pad between the two ends and between a respective side and the center of the pad. The openings, which may be in the form of slits, allow the threading of a sheet or the person's arms through the pad to restrain the arms during surgery.