Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/44—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media
  • A61M5/445—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media the media being heated in the reservoir, e.g. warming bloodbags
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M2205/00—General characteristics of the apparatus
  • A61M2205/33—Controlling, regulating or measuring
  • A61M2205/3368—Temperature
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M2205/00—General characteristics of the apparatus
  • A61M2205/36—General characteristics of the apparatus related to heating or cooling
  • A61M2205/3653—General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance

Definitions

• the invention relates to a heating device for an infusion liquid in a dispensing packaging.
• an infusion liquid to be administered to a patient has a temperature which is no lower than the body temperature of this patient.
• a heating device of the type specified in the preamble which comprises according to the invention a first container of a thermally insulating material for the packaging and a low-voltage heating element.
• the low-voltage heating element is arranged in the second container.
• the low-voltage heating element comprises for instance a resistance wire.
• the first container is for instance a sleeve of textile which is at least partially closable on at least one side and which in an advantageous embodiment is closable with hook and loop fastening tape.
• An advantageous embodiment of a heating device further comprises a second container for accommodating therein at least a first container with a dispensing packaging, which second container is provided with a temperature regulator and a first temperature sensor for placing in contact with the dispensing packaging, wherein the first temperature sensor is connected to the temperature regulator, and with connecting means for the low-voltage heating element and the temperature regulator.
• This second container is for instance embodied as a thermally insulated carrying case in which one or more infusions can be transported in thermally insulated first containers. If a plurality of infusions can be transported in such a carrying case, the case is provided, if desired but not necessarily, with a plurality of temperature regulators and associated temperature sensors connected in parallel.
• the temperature regulator has for instance a range of about 30 °C to about 90 °C, and preferably has a range of about 30 °C to about 70 °C.
• the temperature regulator has an accuracy of about 2 °C.
• the heating device preferably comprises a respective second temperature sensor for placing in contact with the respective dispensing packaging and a respective display device for displaying the temperature of the respective dispensing packaging.
• the respective display device is for instance arranged on the respective first container or, if a second container is present, on the second container.
• Fig. 1 shows the diagram of a circuit of a first embodiment of a heating device according to the invention
• Fig. 2 shows in perspective view a dispensing packaging with an infusion liquid in a sleeve of a thermally insulating textile
• Fig. 3 shows in perspective view a carrying case provided with a second embodiment of a heating device according to the invention.
• Fig. 1 shows a series connection 1 having successively a 12-volt power supply 2, wiring 3, 4, 5, a resistance wire 6 and a temperature regulator 7 which acts as on/off switch and which operates in combination with a vapour pressure thermometer applied as control thermometer or a liquid thermometer, of which a capillary 8 and a liquid reservoir 9 are shown.
• Resistance wire 6 is provided with an electrically insulating outer sheath and is stitched in a meander pattern onto a layer of thermally insulating, for instance wadded textile and then covered with a second layer of textile, from which layers of textile is then manufactured a sleeve (not shown) for a dispensing packaging of an infusion liquid for keeping warm.
• the liquid reservoir 9 is placed in close contact with the infusion liquid between the dispensing packaging and the sleeve.
• the figure further shows a temperature sensor 10 for placing in contact with the dispensing packaging and a digital read-out device 11.
• FIG. 2 shows a dispensing packaging 12 with a suspension lip 13 and an outlet 14 for an infusion liquid in a sleeve 15 of a thermally insulating textile into which a resistance wire 6 is stitched in a meander pattern, the outer ends of which are connected outside sleeve 15 to a connecting plug 16.
• the figure further shows hook and loop fastening tape 17 on the top and bottom side of sleeve 15 with which this latter can be fixed round the dispensing packaging while leaving clear respectively suspension lip 13 and outlet 24.
• Fig. 3 shows a carrying case 18 covered with foam rubber which provides space for two dispensing packagings 12, 12' in respective sleeves 15, 15'.
• Carrying case 18 is provided with temperature regulators 7, 7' with adjusting units 23, 23' and read-out units 24, 24', and a connecting plug 20 for power supply to temperature regulators 7, 7'.
• Temperature regulators 7, 7' can be coupled using cables 25, 25' and coupling sockets 21, 21' to respective connecting plugs 16, 16', which are connected to resistance wires (not shown) in sleeves 15, 15', and to control thermometers 26, 26', which are likewise arranged in the sleeves in good thermal contact with the respective packagings 12, 12'.
• thermosensor 10, 10' for arranging between packagings 12, 12' and sleeves 15, 15', which sensors co-act with displays 11, 11' which are arranged on packagings 12, 12' and which are also visible via a transparent part 22 of the cover of carrying case 18 when the case is closed.
• the heating device provides the advantage that via connecting plug 20 it can be connected in simple manner to the electrical circuit of an ambulance.
• the carrying case Upon arrival at the place of destination the carrying case is disconnected from the circuit of the ambulance by removing plug 20, and the carrying case can be taken to a patient in order to administer an infusion.
• the connecting plug 16 respectively 16' and coupling socket 21 respectively 21' are disconnected, whereupon the relevant infusion is ready to be administered.
• 12' remains accommodated in the sleeve 15, 15', so that the temperature of the infusion liquid is maintained, or at least only falls negligibly.

Landscapes

• Health & Medical Sciences (AREA)
• Vascular Medicine (AREA)
• Engineering & Computer Science (AREA)
• Anesthesiology (AREA)
• Biomedical Technology (AREA)
• Heart & Thoracic Surgery (AREA)
• Hematology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Infusion, Injection, And Reservoir Apparatuses (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=19771797

Family Applications (1)

Country Status (4)

Families Citing this family (4)

Family Cites Families (6)

• 2000
  • 2000-07-25 NL NL1015794A patent/NL1015794C2/nl not_active IP Right Cessation
• 2001
  • 2001-06-29 WO PCT/NL2001/000492 patent/WO2002013894A1/en not_active Application Discontinuation
  • 2001-06-29 AU AU2001269624A patent/AU2001269624A1/en not_active Abandoned
  • 2001-06-29 EP EP01948142A patent/EP1303325A1/de not_active Withdrawn

Non-Patent Citations (1)

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