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WO2015060478A1 - Dispositif médical chauffant - Google Patents

Dispositif médical chauffant Download PDF

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Publication number
WO2015060478A1
WO2015060478A1 PCT/KR2013/009547 KR2013009547W WO2015060478A1 WO 2015060478 A1 WO2015060478 A1 WO 2015060478A1 KR 2013009547 W KR2013009547 W KR 2013009547W WO 2015060478 A1 WO2015060478 A1 WO 2015060478A1
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WO
WIPO (PCT)
Prior art keywords
cartridge
air
outside
heater
liquid
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.)
Ceased
Application number
PCT/KR2013/009547
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English (en)
Korean (ko)
Inventor
조용일
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 PCT/KR2013/009547 priority Critical patent/WO2015060478A1/fr
Publication of WO2015060478A1 publication Critical patent/WO2015060478A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
    • 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

Definitions

  • the present invention relates to a medical heating device, and more specifically, the heating effect is when the inside of the body in a positive pressure state, the bubble is discharged, but the liquid is not discharged, and in the negative pressure state it can prevent the outside air flow into the body. It relates to a medical heating device.
  • the fluid or blood When fluid or blood is injected into a patient, the fluid or blood is heated by means of a heating device to prevent the fluid or blood from having a possible temperature difference from the body temperature.
  • the infusion of cold sap or blood directly to the patient may be dangerous.
  • the warming fluid or blood is generated in the sap or blood can be injected into the human body because the warming device is given a bubble removing means.
  • the heating apparatus disclosed by Korean Patent No. 10-1012535 includes a heater; A partition member and a cover member disposed on the front and rear surfaces of the heater to form a flow path to surround the heater and move a fluid; An air filter unit disposed on the flow path to remove air; As a configuration including a first connecting portion for the fluid flows into the flow path and a second connecting portion for the fluid flow out from the flow path, it can heat the sap or blood and can remove bubbles generated during the heating process.
  • bubbles generated inside the cartridge may be removed through the air filter to the outside of the cartridge having a lower pressure than the inside of the cover member.
  • the inflow of air into the cartridge may have a fatal effect of inflowing air into the blood vessels of the patient who has been supplied with the fluid or blood through the blood vessels.
  • the heating devices proposed so far can prevent the inflow of air. There are no means.
  • an object of the present invention is to warm the fluid or blood and at the same time medical warming having a means for preventing air from flowing back into the cartridge from the outside of the cartridge even under negative pressure To provide a device.
  • the heating device for realizing the object of the present invention
  • First and second cartridge covers having inlets and outlets through which liquid is introduced and discharged, and segment flow paths are respectively formed on inner surfaces thereof and are coupled to allow liquids to pass through therein;
  • Air bubble discharging means for discharging air bubbles in a positive pressure state generated from the liquid heated by the heater to the outside of the cartridge
  • a check valve means provided to the air bubble discharge means to block the outside air from entering the cartridge from the outside of the cartridge when the inside of the cartridge is changed from a positive pressure to a negative pressure.
  • the air bubble discharge means includes an A filter positioned adjacent to an end of the heater.
  • the check valve means the fixture is located on the upper side of the air filter is a hole through which the air bubble can pass and has a valve seat;
  • a check member provided above the fixture and supported by the valve seat;
  • spacers disposed on an outer region of the check member and provided on the fixture at a plurality.
  • a cover is formed on the outside of the check member so that the atmosphere acts on the outside of the check member.
  • the air bubble discharging means is provided in the integrated area where the liquid, which is formed in the first and second cartridge covers and passes through the last segment channel among the segment channels, is stored.
  • First and second cartridge covers having inlets and outlets through which liquid is introduced and discharged, and segment flow paths are respectively formed on inner surfaces thereof and are coupled to allow liquids to pass through therein;
  • An air bubble discharge port for discharging air bubbles in a positive pressure state generated from a liquid heated by the heater to the outside of the case, the case being connected to the discharge port and connected to a pipe and formed independently of the first and second cartridge covers; Means; includes.
  • the air bubble discharging means includes a check valve means for blocking external air from flowing into the case from the outside of the case when the inside of the cartridge is changed from positive pressure to negative pressure.
  • the air bubble discharge means includes a case forming a chamber in which the liquid heated by the heater can be accommodated;
  • a fixing plate fixed to an upper side of the case and having a plurality of slits formed therein;
  • an air filter provided under the slits to block the outflow of liquid and to discharge only air.
  • the check valve means may include a cover provided above the case and having a plurality of holes through which air bubbles can pass, and a valve seat formed outside these holes;
  • a check member positioned inside the partition walls and supported by the valve seat; And a cover positioned outside the check member and having a plurality of holes and fixed to the partition wall.
  • the air filter applied to the present embodiment is formed of a hydrophobic membrane disposed in parallel to the flow direction of the fluid.
  • the supply of blood or fluid is heated by a heater, and when the supply is started, the inside of the cartridge becomes positive pressure and the air bubble is discharged.
  • the check valve is Prevents air from entering the cartridge from the outside.
  • the heating unit and the bubble removing unit are separately provided and these components are connected to the pipe, the heating unit may facilitate the experiment during the leakage test of the cartridge body, and the bubble removing unit may be a heater. Because it is separated from, it can prevent malfunction due to thermal change.
  • FIG. 1 is an exploded perspective view of a heating apparatus according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the heating apparatus according to an embodiment of the present invention.
  • Figure 3 is an enlarged cross-sectional view of the fluid flow control means according to an embodiment of the present invention.
  • FIG. 4 is a view for explaining the operation of the fluid flow control means according to an embodiment of the present invention.
  • FIG. 5 is an exploded perspective view of a heating unit of a heating apparatus according to another embodiment of the present invention.
  • Figure 6 is a cross-sectional view of the heating portion of the heating apparatus according to another embodiment of the present invention.
  • Figure 7 is an exploded perspective view of the bubble removing unit of the heating apparatus according to another embodiment of the present invention.
  • Figure 8 is a cross-sectional view of the bubble removing unit of the heating apparatus according to another embodiment of the present invention.
  • FIG. 9 is a view for explaining the operation of the bubble removing unit according to another embodiment of the present invention.
  • the fluid refers to the fluid or blood.
  • FIG. 1 is an exploded perspective view of a heating apparatus according to an embodiment of the present invention
  • Figure 2 is a cross-sectional view of the coupling of the heating device of Figure 1
  • Figure 3 is an enlarged cross-sectional view of a portion provided with a check valve means, the heating means and the fluid flow It shows that the control means are provided in a single cartridge.
  • the first cartridge cover 2 and the second cartridge cover 4 are each independently made and joined in such a manner as adhesive or heat fusion.
  • a heater 6 is provided between the first cartridge cover 2 and the second cartridge cover 4.
  • the heater 6 is for heating the fluid passing between the first and second cartridge covers 2 and 4.
  • the heater 6 may be a well-known PCB type flat plate heater.
  • the inner surface of the first cartridge cover 2 and the inner surface of the second cartridge cover 4 are formed with a passage for guiding the fluid in one direction.
  • the passage is formed with segment channels 8 in a substantially hemispherical shape on the inner surface of the first cartridge cover 2.
  • segment flow paths 10 are formed on an inner surface of the second cartridge cover 4.
  • the segment flow path 8 and the segment flow path 10 have a shape of a semicircular groove, but as shown in FIG. 1, if the segment flow paths 8 are inclined toward the right direction, as shown in FIG.
  • the segment flow paths 10 are formed to be inclined toward the left direction.
  • segment flow paths 8 and the segment flow paths 10 are formed to be inclined in different directions so that the end portions of the segment flow paths 8 communicate with the ends of the segment flow paths 10.
  • the inlet 12 and the outlet 14 of the fluid are formed in the first and second cartridge covers 2 and 4, and the inlets and outlets 12 and 14 are semi-cylindrical, respectively.
  • 2 may be formed in the cartridge cover (2) (4), or may be formed in any one of the first, second cartridge cover (2) (4) as shown in FIG.
  • the fluid flowing into the inlet 12 is heated by the heater 6 while flowing from the right side to the left side as seen in the drawing while entering the segment flow path 10.
  • the heater 6 is provided only up to an area where the segment flow paths 8 and 10 are formed.
  • the fluid may have a means for discharging the air bubbles generated in the process.
  • the opening 16 is formed in a state where the segment flow path 10 ends in the first cartridge cover 2 in communication with the flow path 10.
  • the air filter 18 is provided in the opening 16.
  • the air filter according to the present embodiment is formed of a hydrophobic membrane disposed in parallel with the flow direction of the fluid.
  • the opening 16 defines an end 17 for positioning the air filter 18.
  • the edge of the air filter 18 is positioned at this end 17 and fixed by an adhesive or the like.
  • Bubbles generated in the heated fluid exiting the segment flow path 10 through the air filter 18 may escape.
  • An end portion of the heater 6 may extend to a position adjacent to the air filter 18 to reduce heat loss in the process of discharging the air bubble through the air filter.
  • An upper side of the air filter 18 is provided with a fastener 20 for fixing the filter to the opening 16 of the first cartridge cover 2.
  • the fastener 20 is also positioned on the air filter 18 on the end 17.
  • the fixture 20 is provided with a check valve means.
  • the check valve means according to the present embodiment includes a check member 22 positioned above the fixture 20, and the check member 22 is inside the first and second cartridge covers 2 and 4, respectively. To prevent fresh air from entering. Outside the check member 22 is provided a cover 24 which fixes the components to the opening 16 of the first cartridge cover 2.
  • the check member 22 is a plate-shaped type made of a material having an elastic force to allow gas inside the first and second cartridge covers 2 and 4 to exit the cartridge.
  • Spacers 26 protrude upward from the surface of the fixture 20 as a means for forming a gap between the fixture 20 and the check member 22.
  • the spacers 26 have a constant length and are spaced apart from each other at intervals 29.
  • a valve seat 27 is formed in the fixture 20 so that the check member 22 is positioned in the valve seat 27, and a hole 28 is formed in the valve seat 27 to form the air.
  • the air flows from the filter 18 side to the check member 22 side.
  • the air can also flow from the check member 22 side to the air filter 18 side through the hole 28.
  • the check member 22 is provided in an inner region of the spacers 26 to be supported by the valve seat 27.
  • the cover 24 has a hole 30 for discharging the air bubble to allow the flow of air.
  • the last flow path 9 is configured to send a heated fluid to the integrated region 32 formed in the second cartridge cover 4,
  • the integrated area 32 is a structure capable of sending a fluid to the outlet 14 side.
  • the integrated region 32 is formed to face the opening 16 and the fluid flowing through the segment flow paths 8 and 10 formed in the first and second cartridge covers 8 and 10 is discharged from the outlet port. (14) is a congruent place before exiting.
  • a flow path 34 communicating with the outlet 14 is formed.
  • the heating apparatus may generally use a method of supplying fluid or blood to a patient.
  • the fluid flowing into the inlet 12 is introduced into the first and second cartridge covers 2 and 4 while passing through the segment flow paths 8 and 10 and the outlet ( 14) to exit.
  • the fluid is heated by the heater 6 to a temperature similar to the body temperature.
  • the pressure inside the first and second cartridge covers 2 and 4 is lowered from the positive pressure to the negative pressure.
  • the atmosphere outside the cartridge is A flow of air to be introduced into the cartridge cover is generated through the hole 30 drilled in the cover 24.
  • FIG 5 and 6 are views showing a heating apparatus according to another embodiment of the present invention, showing a structure in which the cartridge cover and the air bubble removing means are made separately to communicate by a pipeline.
  • the first and second cartridge covers 2 and 4 are bonded and fixed with the heater 6 interposed therebetween, and the first cartridge cover 2 does not have an opening as in the first embodiment, and the second cartridge cover There is no integral region in 4, and only the heater 6 exists as a means for heating the fluid.
  • the outlet 14 is connected to the pipe (P) is connected to the air bubble discharge means 40. Therefore, the air bleeding generated when warmed from the first and second cartridge covers 2 and 4 enters the air bubble discharging means 40 through the conduit P and is discharged therefrom.
  • the air bubble discharge means 40 is shown in FIGS. 7 and 8.
  • the case 42 connected to the conduit P has an open structure at one side thereof, and forms a fluid chamber 44, and a discharge port 46 for discharging the fluid of the fluid chamber 44 is formed.
  • the support 42 is formed in the case 42 so that the air filter 18 can be settled, and the fixing plate 50 is positioned above the air filter 18 to bond with the case 42. It is fixed.
  • a plurality of slits 52 are formed in the fixed plate 50 so that the gas passing through the air filter 18 can pass therethrough.
  • the cover 54 is fixedly coupled to the upper side of the fixing plate 50, and the cover 54 is provided with a check valve means.
  • a plurality of holes 56 are formed in the cover 54, and the valve sheet 58 protrudes in a shape surrounding the holes 56.
  • the valve seat 58 is formed at the central portion of the cover 54, the check member 60 is positioned at the valve seat 58, and the partition wall 62 surrounding the valve seat 58 is provided. This prevents the check member 60 from being separated.
  • the partitions 62 are spaced apart from each other with a gap 63.
  • the check member 60 is made of a material having an elastic force and the diameter is formed smaller than the inner diameter of the partition (62).
  • a cover 24 is adhesively fixed to the partition 62, and a plurality of holes 30 for discharging gas are formed in the cover 24.
  • the check valve means formed in this way is in the positive pressure state, so that the air bubble contained in the fluid is It goes out through the air filter 18.
  • the heating device according to the present invention can block the air from being discharged through the filter in the state where the inside of the device is positive, but not the liquid, and the outside air from entering the inside of the device in the negative pressure state. .

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

Abstract

L'invention concerne un dispositif médical chauffant permettant d'interrompre un écoulement d'entrée d'air extérieur dans une cartouche lorsque la pression à l'intérieur du corps de cartouche passe d'une pression positive à une pression négative. Le dispositif chauffant médical, comprend : un premier et un second couvercle de cartouche dotés d'entrées et de sorties à travers lesquelles un liquide est respectivement introduit et évacué, et des canaux à segments formés respectivement sur les surfaces intérieures, et couplés les aux autres de telle sorte qu'un liquide traverse l'intérieur de ces derniers ; un dispositif de chauffage pour chauffer un liquide qui traverse les canaux à l'intérieur des premier et un second couvercles de cartouche ; un moyen d'évacuation de bulles d'air pour évacuer les bulles sous pression positive, qui sont générées à partir du liquide chauffé par le dispositif de chauffage, vers l'extérieur de la cartouche ; et un moyen de clapet de non retour disposé sur le moyen d'évacuation de bulles d'air afin d'interrompre l'écoulement d'entrée d'air extérieur dans la cartouche depuis l'extérieur de cette dernière lorsque la pression à l'intérieur de la cartouche passe d'une pression positive à une pression négative.
PCT/KR2013/009547 2013-10-25 2013-10-25 Dispositif médical chauffant Ceased WO2015060478A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2013/009547 WO2015060478A1 (fr) 2013-10-25 2013-10-25 Dispositif médical chauffant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2013/009547 WO2015060478A1 (fr) 2013-10-25 2013-10-25 Dispositif médical chauffant

Publications (1)

Publication Number Publication Date
WO2015060478A1 true WO2015060478A1 (fr) 2015-04-30

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PCT/KR2013/009547 Ceased WO2015060478A1 (fr) 2013-10-25 2013-10-25 Dispositif médical chauffant

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110935082A (zh) * 2019-11-20 2020-03-31 董志强 一种神经外科导管装置
CN113975549A (zh) * 2021-10-21 2022-01-28 佛山市奇汇医疗器械有限公司 输血输液排气盒

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5290237A (en) * 1992-01-17 1994-03-01 Verkaart Wesley H Orientation-independent device for removal of gas from a cellular fluid
US5420962A (en) * 1993-10-25 1995-05-30 Bakke; Allan P. Convection blood warming system with disposable flattened tube envelope having vent incorporating a hydrophobic filter
KR20070014258A (ko) * 2005-07-28 2007-02-01 박재상 공기주입방지수액세트의 제작방법
KR101012535B1 (ko) * 2008-07-22 2011-02-07 박재상 의료용 가온장치
KR20120081543A (ko) * 2011-01-11 2012-07-19 박재상 의료용 가온 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5290237A (en) * 1992-01-17 1994-03-01 Verkaart Wesley H Orientation-independent device for removal of gas from a cellular fluid
US5420962A (en) * 1993-10-25 1995-05-30 Bakke; Allan P. Convection blood warming system with disposable flattened tube envelope having vent incorporating a hydrophobic filter
KR20070014258A (ko) * 2005-07-28 2007-02-01 박재상 공기주입방지수액세트의 제작방법
KR101012535B1 (ko) * 2008-07-22 2011-02-07 박재상 의료용 가온장치
KR20120081543A (ko) * 2011-01-11 2012-07-19 박재상 의료용 가온 장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110935082A (zh) * 2019-11-20 2020-03-31 董志强 一种神经外科导管装置
CN113975549A (zh) * 2021-10-21 2022-01-28 佛山市奇汇医疗器械有限公司 输血输液排气盒

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