EP1788319A1 - Système de chauffage pour substances fluides - Google Patents

Système de chauffage pour substances fluides Download PDF

Info

Publication number
EP1788319A1
EP1788319A1 EP05425819A EP05425819A EP1788319A1 EP 1788319 A1 EP1788319 A1 EP 1788319A1 EP 05425819 A EP05425819 A EP 05425819A EP 05425819 A EP05425819 A EP 05425819A EP 1788319 A1 EP1788319 A1 EP 1788319A1
Authority
EP
European Patent Office
Prior art keywords
heating
heating system
sheath
electrically
flowing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05425819A
Other languages
German (de)
English (en)
Inventor
Ezio Giraudo
Narciso Festini
Andrea Festini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP05425819A priority Critical patent/EP1788319A1/fr
Publication of EP1788319A1 publication Critical patent/EP1788319A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/121—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using electric energy supply

Definitions

  • the present invention refers to a heating system for flowing sybstances, in a liquid or gaseous state, particularly for medical/sanitary use.
  • blood, plasma and products derived therefrom are generally refrigerated at about 1-6 °C. Consequently, the infusion of such fluids in a patient at a lower temperature than the body one could create serious problems, such as ipothermy or hearth disorders.
  • physiologically cold flowing substances Another problem which the use of physiologically cold flowing substances has is the one occurring when such substances are rinsing liquids necessary in surgical interventions, for example in endoscopy interventions. Under such situations, in fact, the seepage of a physiologically cold rinsing liquid (in this case at a temperature which is substantially equal to the ambient one, which, in a surgical room, is around 20°C) inside the intervention cavity would generate its condensation, particularly on lenses of the visor used by medical personnel, consequently preventing the intervention from going on correctly, unless probes are afterwards extracted and lenses are cleaned.
  • a physiologically cold rinsing liquid in this case at a temperature which is substantially equal to the ambient one, which, in a surgical room, is around 20°C
  • the prior art proposes different solutions which allow heating, more or less efficiently, the flowing substances before they are infused into a patient.
  • the prior art further does not propose a heating system which can be easily wound around a bag for containing the substance when this latter one is placed in order to be able to proceed with its infusion into the patient.
  • object of the present invention is solving the above prior art problems, providing a heating system for flowing substances, in a liquid or gaseous state, particularly for medical/sanitary use, comprising at least one heating sheath which guarantees heating of the substances along at least one part of a distribution duct to the patient, thereby allowing to arrange the means for supplying the substances itself, such as for example pumps, tanks or bags, also at a remote distance from the patient without impairing its heating.
  • another object of the present invention is providing a heating system comprising at least one heating sheath which allows a progressive heating of a substance flowing inside a distribution duct to the patient.
  • a further object of the present invention is providing a heating system comprising a heating bag for bags or ampullas containing a flowing substance during infusion from a patient realised with the heating sheath.
  • such flowing substances can be those used in the medical and sanitary field, adapted to be infused in a patient, such as, for example, blood, plasma, physiologic substances, venous and gastric soups, or substances helping surgical interventions. It is clear that its uses can be several other ones, such as, for example, in the veterinary field.
  • the heating system according to the present invention comprises at least one heating sheath in a flexible and electrically insulating material, such as, for example, plastics, rubber or adequate fabric, comprising inside it an electrically resisting material forming at least one electrically closed circuit, preferably made as a 12 V filament.
  • the heating system according to the present invention further comprises electrical supply means to which the electrically closed circuit is connected, adapted to supply with current the electrically resisting material which inductively heats the fluid substance due to Joule effect.
  • the electric supply means provide 12V direct current, both for use practicality reasons, and to guarantee a minimum electromagnetic safety level within hospital environments.
  • the heating system according to the present invention can be easily supplied independently through electric supply means realised as a simple and scarcely encumbrant battery, avoiding a connection to the electric network supply, and allowing an extremely practical use, also under situations in which the network supply should not be present or be difficult to reach (such as for example in field hospitals or ambulances).
  • the heating system can comprise electric supply control means which, by interacting with the electric supply means, manage and allow automatically or manually changing the amount of current supplied to the electrically closed circuit, allowing to adjust the amount of heat transmitted to the flowing substance and, consequently, its temperature.
  • the control means can obviously be equipped with all those known devices, such as for example displays for displaying the set and obtained temperature and known service commands, which allow an easy use by a user.
  • the control means can further comprise at least one temperature sensor for the flowing substance, which, by detecting its temperature, allows the comparison with a set temperature and manages reaching and keeping such temperature by operating on electric supply means.
  • the minimum acceptable infusion temperature of the flowing substance will depend on the patient condition, on the infusion length, on the volume of substance which must be administered to the patient, and in some cases on the volume of patient blood before the infusion. In the majority of cases, the infusion temperature will anyway be at least near the patient body temperature.
  • the filament 12 can obviously be arranged inside the heating sheath in an extremely wide variety of ways: the filament 12 can for example be arranged straight or so that it is arranged as a spiral.
  • the heating sheath according to the present invention can be wound around a known distribution duct 10, along at least one portion of its length, adapted to distribute a flowing substance to a patient, both through infusion and through surgical use.
  • the heating sheath can be equipped with securing means, such as for example Velcro(R) bands, buttons, constituoirs or specific adhesives, to allow their securing around the distribution duct 10.
  • the heating sheath can already have a tubular shape, so that it allows inserting inside it the distribution duct 10. In such case, it can be provided to equip the heating sheath with inserts made of elastic material which allow adapting its sizes to a variable number of distribution duct 10 diameters.
  • the distribution duct 10 equipped at one end thereof with a known insertion probe 16, is applied as an example to a supply and heating device 14 for a rinsing fluid for endoscopic interventions, but it is clearly evident that the same distribution duct 10 can be used in wholly different applications, depending on the used flowing substance, such as, for example, for infusions of blood, plasma or other physiologic solutions.
  • the heating sheath of the heating system according to the present invention can be shaped as a heating distribution duct: in such embodiment, therefore, the filament 12 is substantially immersed inside the peripheral wall of the duct itself. It is clear that, in such case, along the heating distribution duct, only one circuit can be realised, which is electrically closed along the whole or part of its length, or many electrically closed circuits can be provided, which are controlled independently by the control means.
  • the filament 12 can be further composed of a plurality of segments having mutually different diameters and/or electric and resistive characteristics, in such a way as to realise a certain temperature distribution inside the distribution duct 10 of the heating distribution duct: in this way, it is possible to provide for the progressive heating of the flowing substance during its transit.
  • a further variation of the heating system according to the present invention can provide that the distribution duct 10 equipped with the heating sheath or the heating distribution duct according to the present invention can be directly inserted inside a bag or an ampule 22 containing the flowing substance to be withdrawn: in this way, the filament 12, in addition to heating the flowing substance in transit, directly pre-heats, inside the bag or ampule 22, as regards the immersed portion of the filament 12, the substance itself.
  • the heating sheath according to the present invention is shaped as a heating bag 20 adapted to be arranged around a bag or an ampule 22 containing the flowing substance during its infusion to a patient.
  • a heating bag 20 can be made of various materials, from gel to polythene, with specific and different thicknesses.
  • the filament 12 can be arranged inside the heating sheath in a spiral way, while in the embodiment in FIG. 3b, the filament 12 is circularly arranged around the bag or ampule 22.
  • the electrically closed circuit is then supplied with current by the electric supply means, possibly managed by the control means, it is heated due to Joule effect owing to its electric resistance, transferring heat by induction to the flowing substance inside the distribution duct 10, the heating distribution duct or the bag or ampule 22.
  • the heating system according to the present invention thereby allows arranging the means for supplying the substance, such as for example pumps, tanks or bags, also at a relevant distance from the patient without impairing its heating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • External Artificial Organs (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP05425819A 2005-11-21 2005-11-21 Système de chauffage pour substances fluides Withdrawn EP1788319A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05425819A EP1788319A1 (fr) 2005-11-21 2005-11-21 Système de chauffage pour substances fluides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05425819A EP1788319A1 (fr) 2005-11-21 2005-11-21 Système de chauffage pour substances fluides

Publications (1)

Publication Number Publication Date
EP1788319A1 true EP1788319A1 (fr) 2007-05-23

Family

ID=36283886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05425819A Withdrawn EP1788319A1 (fr) 2005-11-21 2005-11-21 Système de chauffage pour substances fluides

Country Status (1)

Country Link
EP (1) EP1788319A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4934336A (en) * 1989-05-26 1990-06-19 White Steven J Apparatus and method for warming intravenous equipment
DE4444180A1 (de) * 1993-12-14 1995-06-22 Volker Barkey Temperiervorrichtung für Infusionslösungen
DE10020489A1 (de) * 2000-02-25 2001-12-13 Thomas Freiberger Flächiges Heizelement
DE10104344A1 (de) * 2001-02-01 2002-08-14 Frank-Ulrich Straus Vorrichtung zum Erwärmen von Infusionsbehältern
DE20311150U1 (de) * 2003-03-14 2004-02-26 Wenzel, Nicolaus, Dr. Dipl.-Ing., Dipl.Wirt.-Ing.(FH) REFA-Ing. EUR-Ing. Textil beheizbarer Infusionswärmer
WO2005056089A2 (fr) * 2003-12-05 2005-06-23 Paolo Passarello Appareil

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4934336A (en) * 1989-05-26 1990-06-19 White Steven J Apparatus and method for warming intravenous equipment
DE4444180A1 (de) * 1993-12-14 1995-06-22 Volker Barkey Temperiervorrichtung für Infusionslösungen
DE10020489A1 (de) * 2000-02-25 2001-12-13 Thomas Freiberger Flächiges Heizelement
DE10104344A1 (de) * 2001-02-01 2002-08-14 Frank-Ulrich Straus Vorrichtung zum Erwärmen von Infusionsbehältern
DE20311150U1 (de) * 2003-03-14 2004-02-26 Wenzel, Nicolaus, Dr. Dipl.-Ing., Dipl.Wirt.-Ing.(FH) REFA-Ing. EUR-Ing. Textil beheizbarer Infusionswärmer
WO2005056089A2 (fr) * 2003-12-05 2005-06-23 Paolo Passarello Appareil

Similar Documents

Publication Publication Date Title
EP1113770B1 (fr) Systeme portable de rechauffage de fluide intraveineux
AU2004235777B2 (en) Method and system for warming a fluid
ES2220310T3 (es) Sistema de irrigacion para cirugia endoscopica.
JP6488074B2 (ja) エネルギー送達装置用の再循環冷却システム
CN101742977B (zh) 通过对金属管的电加热用于加热流动液体的设备
CA2280781A1 (fr) Systemes d'injection et procedes d'administration de fluides dans le corps dans une plage de temperatures desiree
EP1977173A2 (fr) Procede et systeme de chauffage ou de refroidissement d'un liquide
US20030004470A1 (en) Method and apparatus for managing temperature and flow of medical fluids
US10363381B2 (en) Medical infusion fluid heat exchange apparatus and warming systems
EP1837047A1 (fr) Dispositif de support pour conteneurs de fluides biomédicaux pour une administration parentérale, spécialement les bouteilles et fioles pour fluides médicaux, ou fluides sanguins similaires
AU2016383497B2 (en) Thermal conditioning device for an injection system
EP1788319A1 (fr) Système de chauffage pour substances fluides
CN108969090B (zh) 用于能量输送装置的冷却系统
CN109069197B (zh) 与能量输送装置一起使用的再循环冷却系统
WO2015147901A1 (fr) Élément chauffant de tubulure de fluide néonatal
WO2014139535A1 (fr) Ensemble d'injection de fluide médical avec chauffage par induction du fluide
WO1996011027A1 (fr) Dispositif d'administration de liquides chauffes a un patient a l'aide d'une injection intraveineuse
EP2997994A1 (fr) Ensemble de tuyau pour injection de fluide médical
US7276046B1 (en) Liquid conductive cooling/heating device and method of use
WO2001056638A1 (fr) Systeme de chauffage pour un fluide physiologique destine a une perfusion
JP2007130236A (ja) 薬液の加温装置
CN215840956U (zh) 一种手术室护理输液保温装置
CN214970425U (zh) 一种输液加热器
CN216169177U (zh) 一种可拼装管道的药液加热装置
US20110315669A1 (en) Systems and methods for heating fluids

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20071124