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WO2002081010A1 - Appareil de transfusion de fluide oxygene - Google Patents

Appareil de transfusion de fluide oxygene Download PDF

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Publication number
WO2002081010A1
WO2002081010A1 PCT/CN2002/000079 CN0200079W WO02081010A1 WO 2002081010 A1 WO2002081010 A1 WO 2002081010A1 CN 0200079 W CN0200079 W CN 0200079W WO 02081010 A1 WO02081010 A1 WO 02081010A1
Authority
WO
WIPO (PCT)
Prior art keywords
oxygen
infusion set
oxygenated
infusion
set according
Prior art date
Application number
PCT/CN2002/000079
Other languages
English (en)
Chinese (zh)
Inventor
Shengyin Han
Original Assignee
Shengyin Han
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
Priority claimed from CN 01248847 external-priority patent/CN2502708Y/zh
Application filed by Shengyin Han filed Critical Shengyin Han
Publication of WO2002081010A1 publication Critical patent/WO2002081010A1/fr

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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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/1407—Infusion of two or more substances
    • A61M5/1409—Infusion of two or more substances in series, e.g. first substance passing through container holding second substance, e.g. reconstitution systems
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0208—Oxygen

Definitions

  • the invention relates to a medical device, in particular to a closed oxygenated infusion set. It belongs to the field of medical devices.
  • the disposable transfusion set and transfusion set currently used in hospitals for blood transfusion is a completely open transfusion process. Regardless of whether the liquid is in a glass bottle or a large infusion bag, its transfusion process requires the natural air in the place to fill the space in the bottle (or bag) with negative pressure after gravity drainage to maintain the liquid level of the liquid. Balance with external atmospheric pressure to maintain the normal infusion. Under normal circumstances, infusion or blood transfusion is performed in the injection room or home bed of the hospital. Different types of bacteria and viruses are contained in the air in these places. It is called a bacterial gas. When filling the space for infusion (or blood transfusion), the gas must bring bacteria and viruses into the medicinal solution or blood, and then enter the body, reflecting the clinical manifestations or the human body's heat, or cross infection.
  • the disposable infusion sets and disposable blood transfusion sets currently used have filter membranes (not real biochemical membranes), which can only filter the dust in the air and cannot block viruses and bacteria. Therefore, the infusion (or Blood transfusion) should be defined as a bacterial transfusion (or blood transfusion).
  • Oxygen is the basis of many lives. Human healthy cells or virus cells will be activated with sufficient oxygen, and hypoxia will shrink, degenerate, and even die. During the treatment of the disease, the drug can only play a sufficient role in activating the cells, and it can only play a small role in the atrophic and dormant cells (including viruses). Therefore, the implementation of oxygen in the body during the treatment process will fully activate the cells and exert the effect of the drug. For healthy cells, giving oxygen can increase its vitality, and for viral cells, giving oxygen can make the cell actively receive drugs and accelerate its death.
  • Oxygen is necessary for the normal metabolism of blood vessels in human tissues. Acute severe hypoxia can directly lead to death, and can also cause serious damage to important blood vessels, such as brain death (vegetative), heart, liver, and kidney failure, leading to a series of serious pathophysiological changes. . Oxygen is the initiating factor for the repair and proliferation of vascular endothelial cells. Hypoxia can easily cause endothelial cell damage. After endothelial cell injury, platelet aggregation and extensive arteriovenous thrombosis can result, leading to severe circulatory disorders and severe ischemic fatigue of tissues and organs. Oxygen causes necrosis and dysfunction of tissues and organs. Under normal circumstances, the oxygen content in the liquid (including the medicinal solution and blood) is 4.0-4.2%, and in most cases the test results are about 3. 8-4. 0%, the reason is atmospheric Low oxygen content.
  • the infusions and blood transfusion devices currently in use have lower levels of both liquid and oxygen in the blood.
  • the main purpose of the present invention is to provide an oxygenated infusion set, which can realize a sterile infusion during the infusion and blood transfusion by oxygenation.
  • Another object of the present invention is to provide an oxygenated infusion set, which increases the oxygen content in the medicinal solution and blood by oxygenation, and can conveniently control the amount of oxygen and the rate of oxygen supply during oxygen supply to ensure Consistent amount of oxygen:
  • Yet another object of the present invention is to provide an oxygenated infusion set, which can eliminate air bubbles formed in the infusion or oxygen remaining at the end of the infusion at any time, to ensure that the gas does not enter the vein, does not form air plugs, and is safe to use.
  • the present invention provides the following technical solutions to achieve the foregoing objectives:
  • An oxygenated infusion set consists of an oxygen source device and a disposable infusion set; wherein the oxygen source device includes an oxygen storage device, an oxygen supply control device, and an air inlet device, and is used for infusion or infusion to the disposable infusion set. Oxygen with a certain pressure is provided in the blood transfusion container; the oxygen source device and the disposable infusion set are integrated or separated.
  • the oxygen source device refers to an independent oxygen storage device and an oxygen supply pipeline; the oxygen storage device is an oxygen cylinder or an oxygen bag with elastic deformation.
  • the integrated oxygen source device and the disposable infusion set are combined into a unified structure through a connecting member.
  • the oxygen source device is composed of an oxygen storage device, an oxygen supply control device, and an air inlet tube.
  • the disposable infusion set consists of a bottle infusion needle, an upper infusion tube, a drip pot, an infusion tube, and a self-discharge device disposed between the lower infusion tube and the flesh needle.
  • An air filter and a flesh needle are formed; the connecting piece is arranged at the end of the air inlet pipe and the inlet of the infusion needle of the bottle; oxygen is added to the liquid and the infusion container through the valve; or the bottleneck outlet of the oxygen source device is directly and disposable
  • the drip pot of the infusion set is tightly screwed or sleeved into one body.
  • the separated oxygen source device and the disposable infusion set have separate delivery pipes as separate structures;
  • the oxygen source device is composed of an oxygen storage device, an opening / closing control block, an air inlet pipe, and a plug-in air inlet needle;
  • a disposable infusion set The utility model is composed of a bottle insertion infusion needle, an upper infusion tube, a drip pot, an infusion tube, a self-venting filter and a meat needle which are arranged between the lower infusion tube and the flesh needle.
  • the bottleneck outlet of the oxygen source device is directly tightly screwed or sleeved with the drip pot of the disposable infusion set into one body.
  • a self-venting filter is provided between the infusion tubes on the disposable infusion set.
  • the self-exhaust filter is composed of a filter base and a filter upper cover; wherein a plurality of liquid tanks are processed on the base, and an output port is provided below; a high-density liquid phase membrane is arranged on the base of the filter and Between the upper covers, there is an input port above the upper screen of the filter, with an exhaust hole on it, and a gas phase membrane is provided at the exhaust hole;
  • the self-exhaust filter consists of the filter body and the filter The cover of the filter is formed; It has a cylindrical structure with a plurality of bosses, a ring-shaped W groove in the middle part, and a liquid collecting hole on the CI groove.
  • the liquid collecting hole is connected to the medical liquid output port below, and the upper part is provided with an inlet.
  • the air port is provided with an exhaust port and a chemical liquid output port below, and a gas phase membrane is provided at the air inlet; a high-density liquid phase membrane is provided between the filter main body and the cover, and a filter cover is provided above the filter cover Liquid medicine input port.
  • the oxygen cylinder is composed of a bottle body and a bottleneck, and an oxygen supply control device is provided at the position of the bottleneck.
  • the top of the oxygen bag is provided with an oxygen supply control device, and the lower end is clamped with a clamping hoop to prevent air leakage.
  • the oxygen supply control device is composed of an on-off control valve and a pressure reducing valve; the on-off control valve is used to control the opening and closing of the oxygen supply path of the oxygen source device; the pressure reducing valve is arranged between the upper part of the control valve and the end of the oxygen outlet channel, Used to automatically adjust the pressure and flow of oxygen.
  • the opening and closing control valve is composed of a switch component and a control valve group; wherein the switch component is arranged in the middle of the oxygen outlet channel of the oxygen storage device, the upper part of the control valve, the lower part of the switch component abuts the upper part of the control valve, and the control valve is arranged in the oxygen outlet channel of the oxygen storage device.
  • the end is elastically plugged at the oxygen outlet of the oxygen storage device.
  • a rubber seal is provided between the lower part of the switch part, the inner wall of the bottle neck and the upper part of the control valve.
  • control valve is a valve core structure, which is composed of a valve core, a spring, and a gasket with a through hole in the center; wherein the valve core is disposed at the lower end of the switch part, and the spring and the gasket are sequentially set on the extension of the valve core.
  • a gasket is plugged at the oxygen outlet of the oxygen storage device.
  • the gasket is composed of two components, the lower component is concave, and the upper component fits into the concave groove.
  • the control valve is composed of a valve body with an air inlet communicating with the central through hole on the side and a deformable pressure pad with a through hole in the center; wherein the top of the gang body touches the pressure pad, and the pressure pad is arranged at the oxygen outlet of the oxygen storage device . There are more than one air inlet.
  • the control valve is integrally provided with the valve body of the switching component.
  • control valve is a piston-type structure, which is composed of a sealing hoop, an inverted "T" shaped valve core provided with an air inlet communicating with the central through hole on the side of the proximal end, a spring bracket and a return spring;
  • the return spring is set in the spring bracket.
  • the spring bracket and the spring are provided with a valve core. The valve core passes through the sealing ring.
  • the bottom of the inverted "T" shape is sealed at the oxygen outlet of the oxygen storage device, and the air inlet seal ring
  • the hoop is arranged on the boss of the inner wall of the oxygen storage device outlet, the spring bracket is fixedly connected to the inner wall of the port of the oxygen storage device, the valve core passes through the sealing ring, and the upper part abuts the lower part of the switch part.
  • the side of the control valve is provided with an air inlet that communicates with the central through hole, and the lower end of the control valve is tapered and is arranged at the oxygen outlet of the oxygen storage device.
  • the oxygen outlet of the oxygen storage device corresponding to the tapered end is provided with a rigid sealing ring.
  • the control valve is a structure of a lower gasket, which is composed of a valve core, a sealing rubber gasket, a spring, and a spring bracket; wherein the lower part of the valve core passes through the oxygen outlet of the oxygen storage device and abuts on the sealing rubber gasket.
  • the spring on the spring bracket is fixedly provided with the inner wall of the oxygen storage device, and the upper part of the valve core contacts the switch part.
  • the center of the valve core is provided with a shoulder ring part, and the switch part abuts on the shoulder ring part, and the Gang core guide bar on the valve core shoulder ring part is sleeved in the oxygen outlet channel of the switch part.
  • the lower part of the switch part is sleeved in the oxygen outlet channel of the oxygen storage device, and an oxygen through hole is set in the center.
  • the switch part The lower part is screwed or clamped in the middle of the inner wall of the bottleneck of the oxygen outlet channel.
  • the pressure reducing valve of the present invention is composed of an inverted "T" shaped guide seat with a guide rod, a rubber pad with a sleeve hole in the center, and a reducing buffer body; wherein the guide seat is provided at the port of the oxygen outlet channel, and the rubber pad
  • the guide rod sleeve is sleeved and combined with the upper surface of the guide seat; the upper part of the guide rod guide rod passes through the end through hole of the reducing buffer body, and a buffer cavity is opened inside the reducing buffer body.
  • a pressure reducing valve is arranged in the oxygen outlet hole of the switch part.
  • the oxygenated transfusion blood transfusion device uses non-toxic and sterile oxygen in the bottle instead of air, so that the transfusion blood is sealed in a state of resistance from virus-free bacteria. The bacteria and viruses in the air have no chance to enter the drug solution and blood. The purpose of sterile infusion and blood transfusion during the whole process is achieved.
  • the filter membrane used on the oxygenated transfusion transfusion device is a biochemical membrane, which can not only filter the dust in the air, but also block viruses and bacteria, so aseptic transfusion is achieved.
  • the process of filling the medicinal solution or blood with the oxygenated transfusion transfusion device is also the process of oxygenation.
  • oxygen is absorbed by the liquid.
  • a high-concentration oxygen environment is formed in the liquid bottle (or bag).
  • gas diffusion gas diffuses from a high-concentration state to a low-concentration state, so oxygen gradually diffuses into the liquid, and the oxygen content in the liquid continues to increase until it reaches saturation.
  • the experiment proves that the dissolved oxygen content of the liquid reaches 15% after 15 minutes, and the saturated oxygen content reaches 14.6% after 30 minutes.
  • Infusion (or blood transfusion) under oxygenated state can directly dissolve more than 2% of the oxygen content (4%) in the normal state of the liquid with the liquid directly into the human veins, that is, oxygen in the body.
  • Oxygen infusion has a certain therapeutic effect on various diseases, specifically as follows: (1) When the human body cannot normally supply oxygen to the body due to obstructive respiratory diseases, oxygenation can be used as a direct relief of symptoms and relieve Patient suffering, one of the direct treatments that help physical recovery. (2) It has certain assistance for heart failure, coronary atherosclerotic heart disease, arrhythmia, cardiac surgery, cardiac insufficiency, coronary heart disease, myocardial infarction, myocarditis, rheumatic heart disease, high altitude heart disease and other diseases. Therapeutic effect.
  • the device is used to give oxygen to the body, which can improve the ventilation of patients, correct hypoxia and acidosis, open the lung microvessels, reduce blood viscosity, improve the lung ⁇ : circulatory perfusion, so that symptoms caused by respiratory diseases can be obtained Lighten.
  • the high-efficiency filter for infusion can absorb insoluble particles and heat sources that are harmful to the human body in the medicinal solution, and the self-venting holes on it can at any time exclude bubbles formed in the infusion or oxygen remaining at the end of the infusion to ensure that the gas cannot enter Veins, no air plugs.
  • FIG. 1 is a schematic diagram of the overall structure of a separate oxygen cylinder and a disposable infusion set of the present invention
  • FIG. 2 is a schematic diagram of the overall structure of the present invention through the oxygen supply pipe and the disposable infusion set;
  • FIG. 3 is a schematic diagram of the overall structure of the independent oxygen bottle and the disposable infusion set of the present invention;
  • 4 is a schematic diagram of the overall structure of the present invention through the integration of an oxygen supply pipe and a disposable infusion set;
  • FIG. 5 is a schematic plan view of the bottom cover of the flat exhaust filter of the present invention;
  • FIG. 6 is a schematic cross-sectional structure view taken along A-A of FIG. 5;
  • FIG. 7 is a schematic plan view of a flat cover of the flat exhaust filter of the present invention.
  • FIG. 8 is a schematic cross-sectional view taken along the line B-B in FIG. 7;
  • FIG. 9 is a schematic cross-sectional structure diagram of a cylindrical exhaust filter according to the present invention.
  • FIG. 10 is a schematic plan view of the internal structure of a filtering column inside a cylindrical exhaust filter according to the present invention.
  • FIG. 11 is a cross-sectional structure diagram of FIG. 10A-A;
  • FIG. 12 is a schematic cross-sectional structure diagram of a pressure reducing valve according to the present invention.
  • FIG. 13 is a schematic exploded structure view of a valve core control valve according to the present invention.
  • FIG. 14 is a schematic diagram of an overall assembly structure of an oxygen cylinder in which a valve core type control valve is installed according to the present invention
  • FIG. 15 is a schematic diagram of an overall assembly structure of an oxygen bag in which a valve core type control valve is installed according to the present invention
  • FIG. 16 is a schematic exploded structure diagram of a piston type control valve according to the present invention
  • FIG. 17 is a schematic diagram of the overall assembly structure of an oxygen cylinder with a piston-type control valve installed according to the present invention.
  • FIG. 18 is a schematic structural diagram of a poppet-type control valve according to the present invention.
  • FIG. 19 is a schematic diagram of the overall assembly structure of an oxygen cylinder with a poppet-type control valve according to the present invention.
  • FIG. 20 is a schematic exploded view of the pressure pad control valve according to the present invention.
  • FIG. 21 is a schematic diagram of an overall assembly structure of an oxygen cylinder in which a pressure pad type control valve is installed according to the present invention.
  • FIG. 22 is a schematic diagram of the exploded structure of the under-cushion control block according to the present invention.
  • FIG. 23 is a schematic diagram of the overall assembly structure of an oxygen cylinder with a bottom-cushion control valve installed according to the present invention.
  • the oxygen source device 1 and the disposable infusion set 2 of the present invention have a split structure, and the oxygen storage device 11 of the oxygen> device 1 is an independent oxygen cylinder.
  • the oxygen source device 1 is composed of an oxygen cylinder, an oxygen supply control device 4, an air inlet tube 14, and a bottle insertion needle 15;
  • the disposable infusion set 2 is composed of a bottle insertion needle 21, an upper infusion tube 22, a drip pot 23, and an infusion tube 24
  • the self-exhaust filter 3 and the flesh needle 25 are arranged between the infusion tube 24 and the flesh needle 25, wherein the oxygen source device 1 is used to provide a certain amount of liquid to the infusion or blood transfusion container connected to the disposable infusion set 2. Pressured oxygen.
  • the functions of the components of the disposable infusion set 2 are the same as those in the prior art; the oxygen cylinder is used to store oxygen, and the oxygen supply control device 4 can control and regulate the discharge of oxygen; the oxygen from the oxygen supply control device 4 passes through the oxygen filter 13 and the intake pipe 14. Insert the air inlet needle 15 into the infusion or blood transfusion container.
  • the gas inlet needle 15 and disposable infusion set of the oxygen source device When in use, insert the gas inlet needle 15 and disposable infusion set of the oxygen source device 1. Insert the gas inlet needle 25 of the bottle 2 into the infusion or blood transfusion container, and the oxygen passes through the oxygen cylinder, the oxygen supply control device 4, and the oxygen filter. 13.Intake Tube 14, the insertion needle I 5 into the infusion or blood transfusion container, the liquid medicine or blood passes the disposable infusion set 2 the infusion needle 21, the upper infusion tube 22, the drip pot 23, the infusion tube 24, the self-exhaust filter The organ 3 and the flesh needle 25 enter the patient. In this way, it is guaranteed that there is no air in the infusion or blood transfusion container, but oxygen, which ensures sterility, and at the same time, the oxygen component also penetrates into the liquid medicine or blood.
  • this embodiment is different from the first embodiment in that the oxygen storage device of the oxygen source device 1 is an oxygen supply pipe 12.
  • the oxygen pipeline facilities of the hospital can be used instead of the oxygen cylinders.
  • the connection joint 121 and the connection pipe 122 of the oxygen source device 1 and the oxygen pipeline can use the oxygen connection joints and connection pipes used by existing patients for oxygen absorption, other structures and working mechanisms. This is the same as the embodiment.
  • the oxygen source device 1 and the disposable infusion set 2 of the present invention have an integrated structure, and the two are connected through a communication valve 5, and the oxygen storage device 12 is an oxygen supply pipe.
  • the oxygen storage device 12 does not have a gas inlet needle.
  • the oxygen in the oxygen storage device 12 does not directly enter the infusion or blood transfusion container, but enters through the communication valve 5 sharing the channel of the disposable infusion set 2. Infusion or blood transfusion container.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the oxygen source device 1 and the disposable infusion set 2 are also integrated.
  • the oxygen storage device includes an oxygen cylinder, an oxygen supply control device 4 'provided at the mouth of the oxygen cylinder, and a connector.
  • the connector of the oxygen bottle mouth and the secondary infusion set 2 pin 21 is tightly screwed or fitted together to ensure that oxygen enters the disposable infusion set 2 pin 21 inlet.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • a self-exhaust filter 3 is provided between the infusion tubes 24. If there is a gas in the liquid, This self-exhaust filter 3 can be completely eliminated.
  • the self-exhaust filter 3 is a flat exhaust filter 31. It is composed of a filter base 311 and a filter upper cover 312. Among them, a plurality of liquid tanks 31 3 are processed on the base 311, and an output port 314 is provided under the high density liquid phase membrane. Between the covers 312, an input port 3 1 5 is provided above the filter upper cover 31 2 , an exhaust hole 316 is provided on the upper side, and a gas phase membrane is provided at the exhaust hole 316.
  • the chemical liquid enters the filter from the input port 315 provided above the filter upper cover 312, and the harmful insoluble particles and heat sources are filtered through the high-density liquid membrane.
  • the chemical liquid is then collected through the liquid tank processed on the base. After 31 3, it is discharged into the human body through the output port 314. Bubbles formed during the infusion or oxygen remaining at the end of the infusion can be removed at any time from the gas vent hole 316 provided with a gas phase membrane, thereby ensuring that the gas cannot enter the vein and will not form. Air plug.
  • Embodiment 6 is a diagrammatic representation of Embodiment 6
  • the self-exhaust filter 3 of the present invention is a cylindrical exhaust gas filter.
  • the filter 32 is composed of a filter main body 321 and a filter cover 322; wherein the filter main body 321 is a cylindrical structure with a plurality of raised bosses thereon, and a middle portion is provided with an annular groove 324,
  • the tank 324 is provided with a liquid collecting hole 323.
  • the liquid collecting hole 323 is connected to the lower liquid medicine outlet 325, the filter cover 322 is provided with an air inlet 326, and the lower is provided with an exhaust port 327 and a liquid medicine outlet 325.
  • a gas phase membrane is disposed at the air inlet 326.
  • a high-density liquid phase membrane is disposed between the filter body 321 and the sleeve 322.
  • a medicinal liquid input port 328 is provided above the filter sleeve 322.
  • the chemical liquid enters the filter 32 from the chemical liquid input port 328 above the filter sleeve 322, and then passes through a high-density liquid film disposed between the filter body 321 and the sleeve 322 to filter out harmful insoluble particles and heat sources.
  • the bubbles formed in the infusion or the remaining oxygen at the end of the infusion can be taken from the air inlet provided with the gas phase membrane Port 326 enters and is removed from exhaust port 327, completing the entire infusion process.
  • Embodiment 7 is a diagrammatic representation of Embodiment 7:
  • FIG. 12 it is a schematic structural diagram of the pressure reducing valve 42 of the present invention.
  • a pressure reducing valve 42 is provided on the oxygen outlet channel, which can effectively adjust and limit the pressure of the oxygen flow rate.
  • the specific structure is composed of an inverted "T" shaped guide seat 421 with a guide rod 424, a rubber pad 422 with a sleeve hole in the center, and a reducing buffer body 423.
  • the guide seat 421 is provided at the port of the oxygen outlet channel.
  • the rubber pad 422 passes through the guide rod 424 and is sleeved on the guide seat 421.
  • the upper portion of the guide seat guide rod 424 penetrates through the end of the reducing buffer body 423, and a buffer cavity 425 is set inside the reducing buffer body 423.
  • the pressure reducing valve 42 may be designed as a separate device provided between the upper part of the control valve and the end of the oxygen outlet passage.
  • the pressure reducing valve 42 is provided in the oxygen outlet hole of the switch member 41, the upper part of the control valve and the end of the oxygen outlet channel. Between departments.
  • oxygen passes through the gap between the end hole 426 of the reducing buffer body 423 and the upper part of the guide post 424 to the buffer cavity 425, so that the oxygen can be adjusted to a certain extent; when the oxygen pressure is high At this time, the oxygen from the port of the oxygen outlet channel pushes the guide seat 421 upward, and the rubber pad 422 will block the gap between the end hole 425 of the reducing buffer body 423 and the upper part of the guide seat guide 424; After a certain amount of oxygen is released, due to the gravity and pressure difference of the guide seat 421, the guide seat 421 is displaced downward, and the oxygen in the oxygen cylinder can be released to the buffer cavity 423 through the gap again, thereby achieving oxygen production. Automatic adjustment of pressure and flow.
  • Embodiment 8 is a diagrammatic representation of Embodiment 8
  • the oxygen supply control device 4 of the present invention is installed on an oxygen cylinder and is used to control the opening and closing of the oxygen supply path of the oxygen source device.
  • the switch member 41 is provided in the middle of the oxygen outlet channel of the oxygen storage device 11 and the upper part of the control valve 43.
  • the lower part of the switch member 41 abuts the upper part of the control valve 43.
  • the control valve 43 is provided in the oxygen outlet channel of the oxygen storage device 11. The end bullet is blocked at the oxygen outlet of the oxygen storage device 11.
  • FIG. 4 It is a structural diagram of a valve core type control valve according to the present invention, which is composed of a valve core 431, a spring 432, and a gasket 433 with a through hole 434 in the center; Set at the lower end of the switch part 41, a spring 432 and a gasket 433 are sequentially placed on the top of the extension of the valve core 431, and the gasket 433 is blocked at the oxygen outlet of the oxygen storage device 11.
  • the gasket 433 is composed of two upper and lower components, The lower assembly is a concave groove, and the upper assembly fits into the concave groove.
  • the working principle is: Rotate the opening and closing member 41 to move the valve core 431 downward, and then the gasket 433 will open the oxygen outlet of the oxygen storage device 11 as it moves downward, and the oxygen will pass through the oxygen outlet channel 16 of the oxygen storage device 11 To be output.
  • components such as the oxygen supply control device 4 of the present invention are the same as those of the above embodiment. The difference is that it is used instead of an oxygen cylinder with an elastically deformed oxygen bag 17.
  • the elastically deformed oxygen gas bag 17 is like an air bladder and can squeeze out the remaining gas.
  • Embodiment 10 is a diagrammatic representation of Embodiment 10:
  • control valve 44 has a piston-type structure. Specifically, it is composed of a sealing hoop 441, an inverse "T" -shaped wide core 442 provided with an air inlet 445 in communication with the central through hole 446 on the side of the proximal end, a spring bracket 444, and a return spring 443;
  • the spring 443 is arranged in the spring bracket 444.
  • the spring bracket 444 and the spring 443 are provided with a valve core 442, the valve core 442 passes through the sealing hoop 441, and the bottom of the "T" shape is sealed at the oxygen outlet of the oxygen storage device 11.
  • the air inlet sealing hoop 441 is provided on the inner wall boss of the oxygen outlet of the oxygen storage device 11, and the spring bracket 444 is fixed to the inner wall of the port of the oxygen storage device 11 and passes through the upper part of the sealing ring 441 at the core 442.
  • the lower part of the switch member 41 is abutted.
  • the working principle is: Rotate the opening and closing member 41 to move the inverted "T" shaped valve core downward. At this time, the air inlet hole 445 under the valve core 442 will be separated from the sealing hoop 441, and the oxygen in the oxygen cylinder will pass through. The air hole 445 and the central hole 446 on the valve core 442 are released through the bottle mouth oxygen outlet channel 16.
  • Embodiment 11 is a diagrammatic representation of Embodiment 11:
  • control valve 45 of this embodiment is a poppet-type structure, an overall control structure, and the side of the control valve 45 is provided with an air inlet 452 communicating with the central through hole 453, and the control valve 45
  • the top end is a tapered 451, which is provided at the oxygen outlet of the oxygen storage device 11.
  • the oxygen outlet of the oxygen storage device 11 corresponding to the tapered end 451 is provided with a PI'j seal 454, which has better air tightness.
  • the switch part 41 When in use, the switch part 41 is rotated upward, and the top end of the control valve 45 is moved upward to conical end 451 to disengage the seal ring 454. At this time, the oxygen in the oxygen cylinder 11 will be released through the oxygen outlet channel 16 of the bottle mouth.
  • Embodiment 12 is a diagrammatic representation of Embodiment 12
  • control valve 46 of this embodiment is a pressure pad type structure, and the valve body 465 provided with an air inlet 461 communicating with the central through hole 463 on the side and a deformable through hole 464 in the center
  • the pressure pad 463 is configured; the valve body 11 contacts the pressure pad, and the pressure pad 463 is disposed at the oxygen outlet of the oxygen storage device.
  • the control valve 47 of the present invention has a down-sealed pressure structure. It consists of a valve core 471, a sealing rubber pad 472, a spring 473, and a spring bracket 474. The lower portion of the valve core 471 passes through the oxygen outlet 111 of the oxygen storage device 11 and abuts on the sealing rubber pad 472.
  • the lower portion of the sealing rubber pad 472 is A spring 473 provided on the spring bracket 474, the spring bracket 474 is fixedly provided with the inner wall of the oxygen storage device 11, the valve core 471 is provided with a shoulder ring portion 475 in the center, the switch member 41 abuts on the shoulder ring portion 475, and the valve core shoulder ring portion The valve core guide rod 476 above the 475 is sleeved in the oxygen outlet channel of the switch part 41.
  • the working principle is: When the switch member 41 is rotated downward, the control valve 47 will move the valve core 471 downward through the shoulder 475 on the valve core 471, so that the sealing rubber pad 472 is separated from the oxygen outlet 111 of the bottle end, forming an inlet. Gas gap, 'At this time, the oxygen in the oxygen cylinder 11 will be released through the gap and the oxygen outlet channel 16 of the bottle mouth.
  • the invention can also be used as an oxygenated blood transfusion device.

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  • 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)

Abstract

Cette invention se rapporte à un appareil de transfusion de fluide oxygéné, qui comprend un appareil source d'oxygène et un appareil de transfusion de fluide jetable. L'appareil source d'oxygène, qui fournit de l'oxygène gazeux à une pression donnée dans un récipient de fluide ou de sang raccordé à l'appareil de transfusion jetable, comporte un appareil de régulation de l'amenée d'oxygène et un tube de gaz. Grâce à l'oxygénation, cette invention permet de réaliser une transfusion aseptisée.
PCT/CN2002/000079 2001-04-10 2002-02-09 Appareil de transfusion de fluide oxygene WO2002081010A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN01241094.2 2001-04-10
CN01241094 2001-04-10
CN01248847.X 2001-07-26
CN 01248847 CN2502708Y (zh) 2001-07-26 2001-07-26 充氧输液器套装

Publications (1)

Publication Number Publication Date
WO2002081010A1 true WO2002081010A1 (fr) 2002-10-17

Family

ID=25740892

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2002/000079 WO2002081010A1 (fr) 2001-04-10 2002-02-09 Appareil de transfusion de fluide oxygene

Country Status (1)

Country Link
WO (1) WO2002081010A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2309841Y (zh) * 1997-04-01 1999-03-10 王冶 无菌充氧器
CN2440524Y (zh) * 2000-10-12 2001-08-01 韩生印 充氧输液器
US20010016729A1 (en) * 1999-09-30 2001-08-23 Vincent Divino Apparatus and method for blood oxygenation
CN2467114Y (zh) * 2000-12-26 2001-12-26 刘世远 高密封无菌氧疗器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2309841Y (zh) * 1997-04-01 1999-03-10 王冶 无菌充氧器
US20010016729A1 (en) * 1999-09-30 2001-08-23 Vincent Divino Apparatus and method for blood oxygenation
CN2440524Y (zh) * 2000-10-12 2001-08-01 韩生印 充氧输液器
CN2467114Y (zh) * 2000-12-26 2001-12-26 刘世远 高密封无菌氧疗器

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