WO2022142769A1 - 流体通断体及部件、壳体和装置、通气治疗设备和氧气供给控制方法 - Google Patents

流体通断体及部件、壳体和装置、通气治疗设备和氧气供给控制方法 Download PDF

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Publication number
WO2022142769A1
WO2022142769A1 PCT/CN2021/130309 CN2021130309W WO2022142769A1 WO 2022142769 A1 WO2022142769 A1 WO 2022142769A1 CN 2021130309 W CN2021130309 W CN 2021130309W WO 2022142769 A1 WO2022142769 A1 WO 2022142769A1
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WIPO (PCT)
Prior art keywords
fluid
channel
fluid channel
oxygen
sliding plate
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PCT/CN2021/130309
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English (en)
French (fr)
Inventor
陈允敬
刘久重
庄志
郑芳
张安军
Original Assignee
北京怡和嘉业医疗科技股份有限公司
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Application filed by 北京怡和嘉业医疗科技股份有限公司 filed Critical 北京怡和嘉业医疗科技股份有限公司
Priority to EP21913512.6A priority Critical patent/EP4245339A4/en
Publication of WO2022142769A1 publication Critical patent/WO2022142769A1/zh

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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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/206—Capsule valves, e.g. mushroom, membrane valves
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0666—Nasal cannulas or tubing
    • A61M16/0672—Nasal cannula assemblies for oxygen therapy
    • A61M16/0677—Gas-saving devices therefor
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • 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 the technical field of fluid on-off, in particular to a fluid on-off body, a fluid on-off component, a fluid on-off housing, a fluid on-off device, an oxygen supply control method and a Ventilation therapy equipment.
  • ventilation treatment equipment is a vital medical device for patients with respiratory failure to maintain breathing, ensure ventilation, save and prolong the life of patients.
  • the ventilation treatment method based on ventilation treatment equipment is currently an effective method to replace artificial autonomous ventilation. It is widely used in respiratory failure caused by various reasons, anesthesia and respiratory management during major surgery, respiratory support treatment and emergency resuscitation.
  • the oxygen source is connected to the flowmeter, and the flowmeter is set outside the ventilation therapy equipment.
  • the knob on the flowmeter By adjusting the knob on the flowmeter, the opening and closing of the oxygen of the whole machine can be controlled, and the flow rate of oxygen can be set at the same time.
  • the present invention provides a fluid on-off body, which has a simple structure and can drive the on-off member to switch on and off fluids safely and reliably in actual use. For example, when used in ventilation therapy equipment, it can significantly improve ventilation. Safety of oxygen supply to therapeutic equipment.
  • the present invention provides a fluid on-off body, the fluid on-off body includes a sliding plate and a flexible connecting member, wherein the flexible connecting member is connected to the sliding plate, and the flexible connecting member is used for Connected to the first channel wall of the first fluid channel of the fluid on-off device, the sliding plate is used for being able to move under the pressure of the fluid in the first fluid channel to drive the flexible connector to deform flexibly.
  • the flexible connector is used to connect to the first channel wall of the first fluid channel of the fluid on-off device, and the sliding plate is used to be able to move under the pressure of the fluid in the first fluid channel to move to Drive the flexible connector to deform flexibly, so that in actual use of the fluid on-off body, the flexible connector can be connected to the first channel wall of the first fluid channel of the fluid on-off device, and the on-off component can be connected to the sliding
  • the on-off member can extend from the first fluid channel of the fluid on-off device into the second fluid channel isolated from the first fluid channel in the fluid on-off device and can move, so that the first fluid When the channel is not supplied with the first fluid, the on-off member can cut off the flow of the second fluid channel to stop supplying the second fluid.
  • the first fluid When the first fluid is supplied through the first fluid channel, the first fluid will apply pressure to the sliding plate. Under the flexible deformation of the member, the pressure applied by the first fluid to the sliding plate will drive the sliding plate to move, thereby driving the on-off member to move to pass through the second fluid channel, so that the second fluid channel can supply the second fluid.
  • the supply of the second fluid can be controlled by whether the first fluid is supplied, so that the safety and reliability of the supply of the second fluid can be improved.
  • the first fluid when the fluid on-off body is applied to a ventilation therapy device, the first fluid can be the air flow supplied by the fan, and the second fluid can be the oxygen supplied by the oxygen source, so that the waste of oxygen can be avoided and the ventilation can be significantly improved Safety of use of oxygen in therapeutic equipment.
  • the present invention provides a fluid on-off component
  • the fluid on-off component includes a on-off member and the fluid on-off body described in the first aspect above, wherein the on-off member is connected with the sliding plate ; wherein, the on-off member is used to extend from the first fluid channel of the fluid on-off device into the second fluid channel isolated from the first fluid channel in the fluid on-off device and can move; wherein, the on-off device
  • the breaker is used to cut off the flow of the second fluid channel, and the sliding plate can move under the pressure of the fluid in the first fluid channel, so as to drive the on-off piece to move, so that the second fluid channel is moved.
  • the fluid channel is in flow.
  • the flexible connector can be connected to the first channel wall of the first fluid channel of the fluid on-off device, and the on-off member can be connected from the first channel of the fluid on-off device.
  • a fluid channel protrudes into a second fluid channel isolated from the first fluid channel in the fluid on-off device and can move, so that when the first fluid channel does not supply the first fluid, the on-off member can connect the second fluid channel Stop the flow to stop supplying the second fluid; when the first fluid is supplied through the first fluid channel, the first fluid will apply pressure to the sliding plate, and under the flexible deformation of the flexible connector, the pressure applied by the first fluid to the sliding plate will drive the The sliding plate moves, thereby driving the on-off member to move to make the second fluid channel flow through, so that the second fluid can be supplied through the second fluid channel, so that the supply of the second fluid can be controlled by whether the first fluid is supplied or not,
  • the safety and reliability of the second fluid supply can be improved.
  • the first fluid can be the air flow supplied by the fan
  • the second fluid can be the oxygen supplied by the oxygen source
  • the present invention provides a fluid on-off housing, wherein the fluid on-off housing is provided with an isolated first fluid channel and a second fluid channel, wherein the first channel wall of the first fluid channel is A flexible connector for connecting the fluid on-off components described in the second aspect above; an open port is formed on the first channel wall, and the edge of the open port is used to connect the fluid described in the second aspect above
  • the flexible connector of the on-off part so that the fluid on-off body of the fluid on-off part described in the second aspect above serves as a part of the channel wall of the first channel wall.
  • the fluid on-off housing can connect the flexible connector of the fluid on-off component described in the second aspect above to the mouth edge of the open port, so that the fluid on-off body acts as the first channel A part of the channel wall of the wall, and the on-off member can protrude from the first fluid channel of the fluid on-off device into the second fluid channel isolated from the first fluid channel in the fluid on-off device and can move, so that the first When a fluid channel does not supply the first fluid, the on-off member can cut off the flow of the second fluid channel to stop supplying the second fluid; when the first fluid is supplied through the first fluid channel, the first fluid will apply pressure to the sliding plate.
  • the pressure applied by the first fluid to the sliding plate will drive the sliding plate to move, thereby driving the on-off member to move to make the second fluid channel pass through, so that the second fluid can be supplied through the second fluid channel
  • the supply of the second fluid can be controlled by whether the first fluid is supplied, so that the safety and reliability of the supply of the second fluid can be improved.
  • the first fluid can be the air flow supplied by the blower
  • the second fluid can be the oxygen supplied by the oxygen source. In this way, the waste of oxygen can be avoided and the improvement can be significantly improved. Safety in the use of oxygen for ventilation therapy equipment.
  • the present invention provides a fluid on-off device, the fluid on-off device includes: a fluid on-off housing, wherein an isolated first fluid channel and a second fluid channel are arranged in the fluid on-off housing;
  • the fluid on-off part includes a fluid on-off body and a on-off part, the fluid on-off body is movably arranged in the first fluid channel, and the on-off part is connected with the fluid on-off body,
  • the on-off member protrudes from the first fluid channel into the second fluid channel and can move; wherein, the pressure in the first fluid channel received by the fluid on-off body is less than that of making the fluid on and off When the active pressure of the body is active, the on-off member cuts off the flow of the second fluid channel; wherein, when the fluid on-off body is subjected to the pressure exerted by the first fluid in the first fluid channel is greater than the active pressure , the fluid on-off body can move and drive the on-off member to move so as to communicate with the second fluid channel.
  • the on-off member is connected with the fluid on-off body, and the on-off member extends from the first fluid channel into the second fluid channel and can move,
  • the on-off member causes the second fluid channel to stop flowing,
  • the fluid on-off body can move when the pressure exerted by the first fluid in the first fluid channel is greater than the active pressure.
  • the on-off member drives the on-off member to move to make the second fluid channel flow to supply the second fluid.
  • the supply of the second fluid can be controlled by whether the first fluid is supplied, so that the safety and reliability of the second fluid supply can be improved.
  • the first fluid can be the air flow supplied by the fan
  • the second fluid can be the oxygen supplied by the oxygen source, so that the waste of oxygen can be avoided and the ventilation therapy can be significantly improved Oxygen use safety of equipment.
  • the present invention provides an oxygen supply control method, the oxygen supply control method is used for oxygen supply control of ventilation therapy equipment, the oxygen supply control method comprises: movably disposing an oxygen valve in the oxygen supply channel and In the air supply channel communicated with the fan; when the ventilation therapy device is turned on and the fan is running, the air flow provided by the fan exerts pressure on the oxygen valve, so that the oxygen valve opens the oxygen supply channel to supply oxygen; when the ventilation therapy device is turned off, or ventilation During the operation of the treatment equipment, when the fan is abnormal or the circuit is abnormal and the fan stops running, the oxygen valve is made to close the oxygen supply channel to stop supplying oxygen.
  • the oxygen supply can be stably and reliably controlled by the oxygen valve movably arranged in the oxygen supply channel and the air supply channel communicated with the fan, and by the pressure exerted by the air flow supplied by the fan, so that the waste of oxygen can be avoided. And can significantly improve the safety of the use of oxygen in the ventilation treatment equipment.
  • the present invention provides a ventilation therapy device, the ventilation therapy device comprising a fan and the fluid on-off device described in the fourth aspect above, wherein the first fluid channel is used as an air delivery channel, and the first fluid channel The inlet end of a fluid channel communicates with the outlet end of the blower, and the second fluid channel serves as an oxygen delivery channel.
  • the ventilation therapy device can implement the oxygen supply control method described in the fifth aspect above. In this way, as mentioned above, the oxygen use safety of the ventilation therapy device is significantly improved.
  • FIG. 1 is a schematic structural diagram of a first fluid on-off device provided by a specific embodiment of the present invention, wherein the on-off member cuts off the flow of the second fluid channel;
  • FIG. 2 is a schematic diagram of the on-off member passing through the second fluid channel in the fluid on-off device of FIG. 1;
  • FIG. 3 is a schematic structural diagram of a second fluid on-off device provided by a specific embodiment of the present invention, wherein the on-off member cuts off the flow of the second fluid channel;
  • FIG. 4 is a schematic diagram of the second fluid channel passing through the on-off member in the fluid on-off device of FIG. 3;
  • FIG. 5 is a schematic structural diagram of a third fluid on-off device provided by a specific embodiment of the present invention, wherein the on-off member cuts off the flow of the second fluid channel;
  • FIG. 6 is a schematic diagram of the on-off member passing through the second fluid channel in the fluid on-off device of FIG. 5;
  • FIG. 7 is a schematic structural diagram of a fourth fluid on-off device provided by a specific embodiment of the present invention, wherein the on-off member cuts off the flow of the second fluid channel;
  • FIG. 8 is a schematic diagram of the on-off member passing through the second fluid channel in the fluid on-off device of FIG. 7 ;
  • FIG. 9 is a schematic structural diagram of a fifth fluid on-off device provided by a specific embodiment of the present invention, wherein the on-off member cuts off the flow of the second fluid channel;
  • Fig. 10 is a schematic diagram of the on-off member passing through the second fluid channel in the fluid on-off device of Fig. 9;
  • FIG. 11 is a schematic structural diagram of a sixth fluid on-off device provided by a specific embodiment of the present invention, wherein the on-off member cuts off the flow of the second fluid channel;
  • FIG. 12 is a schematic diagram of the on-off member passing through the second fluid channel in the fluid on-off device of FIG. 11 ;
  • Fig. 13 is a schematic diagram of a ventilation therapy device provided by a specific embodiment of the present invention in actual use.
  • the fluid on-off body 4 provided by the present invention such as a pressurized movable member, includes a sliding plate 7 and a flexible connecting member, wherein the flexible connecting member is connected to the sliding The plate 7, the flexible connector is used to connect to the first channel wall 11 of the first fluid channel 1 of the fluid on-off device, and the sliding plate 7 can move under the pressure of the fluid in the first fluid channel 1 to drive the flexible connection Flexible deformation of the piece.
  • the flexible connector is used to connect to the first channel wall 11 of the first fluid channel 1 of the fluid on-off device, and the sliding plate 7 can move under the pressure of the fluid in the first fluid channel 1 to drive the flexible connector
  • the flexible connector can be connected to the first channel wall 11 of the first fluid channel 1 of the fluid on-off device, and the on-off member 5 can be connected to the sliding On the plate 7, the on-off member 5 can extend from the first fluid channel 1 of the fluid on-off device into the second fluid channel 2 isolated from the first fluid channel 1 in the fluid on-off device and can move, so that , when the first fluid channel 1 does not supply the first fluid, the on-off member 5 can cut off the second fluid channel 2 to stop supplying the second fluid; when the first fluid is supplied through the first fluid channel 1, the first fluid will The sliding plate 7 exerts pressure, and under the flexible deformation of the flexible connector, the pressure applied by the first fluid to the sliding plate 7 will drive the sliding plate 7 to move,
  • the first fluid can be the air flow supplied by the fan
  • the second fluid can be the oxygen supplied by the oxygen source
  • the flexible connecting member can have various structural forms, for example, the flexible connecting member can be a flexible strip, one end of the flexible strip in the length direction can be connected to the sliding plate 7 , and the other end is used to connect to the first channel wall 11 .
  • the flexible strips may be arranged along the circumferential direction of the sliding plate 7 , that is, the flexible strips extend circumferentially and are connected at the edges of the sliding plate 7 .
  • the flexible connecting member is an annular flexible connecting member and is connected to the peripheral edge of the sliding plate 7, so that the flexible connecting member can be flexibly deformed in the entire circumferential direction of the sliding plate 7, so that the sliding plate 7 can be flexibly deformed. 7 moves more evenly and smoothly.
  • annular flexible connecting piece can be connected to the peripheral edge of the sliding plate 7 to form a flexible skirt, so that the flexible connecting piece can be easily formed and connected with the first channel wall 11 .
  • the flexible connecting member may not have elasticity, so that after the supply of the first fluid is stopped, the sliding plate 7 can be returned to the position manually, or the elastic member connected with the sliding plate 7 can be realized. , or can be realized by an elastic piece connected to the on-off piece 5 .
  • the flexible connector is an elastic skirt 8 .
  • the elastic skirt 8 can be automatically returned under the action of its own elastic force, and after the elastic skirt 8 is returned, it can also be used to apply a pre-pressure to the on-off member 5 connected to the sliding plate 7, so that the The interrupter 5 maintains the state of blocking the flow of the second fluid passage 2 under this pre-pressure.
  • the pressure exerted by the first fluid on the sliding plate 7 needs to overcome the pre-pressure of the elastic skirt 8, and then the elastic skirt 8 is elastically deformed to allow the sliding plate 7 to move, thereby driving the on-off The member 5 is moved so that the second fluid channel 2 flows through.
  • either side plate surface of the sliding plate 7 can be used as the pressure plate surface of the first fluid.
  • the first channel wall 11 may be provided with various structures to connect the flexible connecting pieces.
  • a cylindrical body protrudes inward from the first channel wall 11
  • a fluid inlet opening is formed on the cylindrical wall of the cylindrical body
  • the flexible connecting piece can be connected to the radially inner cylindrical opening of the cylindrical body, In this way, the first fluid can enter into the cylinder from the fluid inlet opening to apply pressure to the plate surface of the sliding plate 7 which faces the interior of the cylinder.
  • the flexible connector is used to connect the mouth rim 14 of the open port formed on the first channel wall 11 , so that the fluid on-off body 4 serves as a part of the channel wall of the first channel wall 11 .
  • an open port is formed on the first channel wall 11, and the flexible connecting piece can be connected to the mouth edge 14 of the open port, so that the sliding plate 7 is located in the open port, so that the fluid on-off body 4 will form the first channel wall 11, so that when the first fluid flows in the first fluid channel, pressure can be applied to the inner surface of the sliding plate 7 facing the first fluid channel 1, and the pressure can drive the sliding plate 7 to move outward, And when the pressure is removed, for example, when the normal atmospheric pressure is restored, the sliding plate 7 is moved inward and returned to its original position.
  • the flexible connecting member in order to make it easier for the sliding plate 7 to have a larger moving stroke, includes a U-shaped wall 9 for protruding into the first fluid channel 1 , so that the U-shaped wall 9 can The stroke of the sliding plate 7 is effectively improved by using the side wall formed by bending.
  • the U-shaped wall 9 can also store a larger elastic return energy, so that the sliding plate 7 can be more easily returned, and can be connected to the sliding plate 7.
  • the on-off member 5 applies a larger pre-pressure, so that the on-off member 5 can more stably and reliably cut off the flow of the second fluid channel 2 .
  • the flexible connector can be connected to the first channel wall 11 in various ways, for example, the flexible connector can be connected to the first channel wall 11 by screw connection, welding connection or snap connection.
  • a connecting body 13 is connected to the peripheral edge of the flexible connecting member, and a radial clamping groove 10 is formed on the outer peripheral surface of the connecting body 13 .
  • the card slot 10 can be easily snapped onto the mouth edge 14 of the open mouth.
  • the present invention provides a fluid on-off component
  • the fluid on-off component includes a on-off member 5 and the fluid on-off body 4 described in the first aspect above, wherein the on-off member 5 is connected with the sliding plate 7 ;
  • the on-off member 5 is used to extend from the first fluid channel 1 of the fluid on-off device into the second fluid channel 2 isolated from the first fluid channel 1 in the fluid on-off device and can move;
  • the breaking member 5 is used to cut off the flow of the second fluid channel 2 , and the sliding plate 7 can move under the pressure of the fluid in the first fluid channel 1 to drive the on-off member 5 to move to make the second fluid channel 2 flow through.
  • the flexible connector can be connected to the first channel wall 11 of the first fluid channel 1 of the fluid on-off device, and the on-off member 5 can be connected from the fluid
  • the first fluid channel 1 of the disconnecting device extends into the second fluid channel 2 in the fluid disconnecting device, so that when the first fluid channel 1 does not supply the first fluid, the on-off member 5 can disconnect the second fluid channel 2 flow to stop the supply of the second fluid; when the first fluid is supplied through the first fluid channel 1, the first fluid will apply pressure to the sliding plate 7, and under the flexible deformation of the flexible connector, the first fluid will exert pressure on the sliding plate 7
  • the sliding plate 7 is driven to move, thereby driving the on-off member 5 to move to communicate the second fluid channel, so that the second fluid channel can supply the second fluid.
  • the second fluid can be controlled by whether the first fluid is supplied or not. Therefore, the safety and reliability of the second fluid supply can be improved.
  • the first fluid can be the air flow supplied by the fan
  • the second fluid can be the oxygen supplied by the oxygen source, so that waste of oxygen can be avoided and ventilation can be significantly improved Safety of use of oxygen in therapeutic equipment.
  • the on-off member 5 can be a plate member or a column member.
  • the on-off member 5 is connected at the center position of the plate surface of the sliding plate 7 , so that the on-off member 5 can be driven to move more smoothly when the sliding plate 7 moves.
  • the on-off member 5 and the sliding plate 7 are detachably connected, so that in actual use, the on-off member 5 or the sliding plate 7 can be easily replaced according to the damage situation.
  • the on-off member 5 and the sliding plate 7 can also be integrally formed and connected.
  • the present invention provides a fluid on-off housing.
  • the fluid on-off housing 3 is provided with an isolated first fluid channel 1 and a second fluid channel 2, wherein the first fluid
  • the first channel wall 11 of the channel 1 is used to connect the flexible connector of the fluid on-off component described in the second aspect above; an open port is formed on the first channel wall 11, and the mouth edge 14 of the open port is used to connect the above-mentioned first channel.
  • the flexible connector of the fluid on-off component described in the second aspect, so that the fluid on-off body 4 of the fluid on-off component described in the second aspect above serves as a part of the channel wall of the first channel wall 11 .
  • the flexible connector of the fluid on-off component described in the second aspect above can be connected to the mouth edge 14 of the open port, so that the fluid on-off body 4 acts as the first A part of the channel wall of a channel wall 11, and the on-off member 5 can extend from the first fluid channel 1 of the fluid on-off device into the second fluid channel 2 in the fluid on-off device, so that through the first fluid channel 1 When the first fluid is not supplied, the on-off member 5 can cut off the second fluid channel 2 to stop supplying the second fluid.
  • the first fluid When the first fluid is supplied through the first fluid channel 1, the first fluid will apply pressure to the sliding plate 7 , under the flexible deformation of the flexible connector, the pressure applied by the first fluid to the sliding plate 7 will drive the sliding plate 7 to move, thereby driving the on-off member 5 to move to pass through the second fluid channel, so that the second fluid channel can
  • the supply of the second fluid can be controlled by whether the first fluid is supplied, so that the safety and reliability of the supply of the second fluid can be improved.
  • the first fluid when the fluid on-off housing is applied to a ventilation therapy device, the first fluid can be the air flow supplied by the blower, and the second fluid can be the oxygen supplied by the oxygen source. In this way, the waste of oxygen can be avoided and the improvement can be significantly improved. Safety in the use of oxygen for ventilation therapy equipment.
  • the on-off member 5 may protrude into the second fluid channel 2 through the other fluid channels.
  • the common channel wall 16 between the first fluid channel 1 and the second fluid channel 2 includes a through channel, and the through channel is used to install the fluid on-off component described in the second aspect above. On-off part 5. In this way, the internal structure of the fluid channel housing can be simplified accordingly, and the reliability of the movement of the on-off member 5 can be improved.
  • the present invention provides a fluid on-off device, referring to different embodiments shown in FIGS. 1-12 , the fluid on-off device includes a fluid on-off housing 3 and a fluid on-off component, and the fluid on-off housing 3 3 is provided with an isolated first fluid channel 1 and a second fluid channel 2, the fluid on-off component includes a fluid on-off body 4 and a on-off member 5, and the fluid on-off body 4 is movably arranged in the first fluid channel 1, and the The disconnecting member 5 is connected with the fluid on-off body 4, and the on-off member 5 extends from the first fluid channel 1 into the second fluid channel 2 and can move; When the pressure is less than the active pressure that makes the fluid on-off body move, the on-off member 5 cuts off the flow of the second fluid channel 2; wherein, the fluid on-off body 4 is subjected to the pressure exerted by the first fluid in the first fluid channel 1 when the pressure is greater than the active pressure , the fluid on-off body 4 can move and drive
  • the on-off member 5 is connected with the fluid on-off body 4, and the on-off member 5 extends from the first fluid channel 1 to the second fluid
  • the pressure in the first fluid channel 1 received by the fluid on-off body 4 is less than the active pressure that makes the fluid on-off body 5 move, for example, when the supply of the first fluid in the first fluid channel 1 is stopped.
  • the on-off member 5 cuts off the flow of the second fluid channel 2 to stop the second fluid channel 2 from supplying the second fluid; and when the first fluid channel 1 supplies the first fluid, the fluid on-off body is affected by the first fluid in the first fluid channel.
  • the fluid on-off body 4 can move and drive the on-off member 5 to move to pass through the second fluid channel 2 to supply the second fluid. In this way, it can be controlled by whether the first fluid is supplied or not.
  • the supply of the second fluid can improve the safety and reliability of the supply of the second fluid.
  • the first fluid can be the air flow supplied by the fan
  • the second fluid can be the oxygen supplied by the oxygen source, so that the waste of oxygen can be avoided and the ventilation therapy can be significantly improved Oxygen use safety of equipment.
  • the fluid on-off body 4 may be arranged inside the first fluid channel 1 .
  • the fluid on-off body 4 is used as a part of the channel wall of the first channel wall 11 of the first fluid channel 1 , which can be achieved in various ways, for example, in one way , a cylindrical body is formed on the first channel wall 11, and the fluid on-off body 4 can be slidably and sealedly arranged in the cylindrical body. In this way, the fluid on-off body 4 is encapsulated in the cylindrical body, and also acts as a part of the first channel wall 11. channel wall.
  • the fluid on-off device includes an elastic member 6.
  • the elastic member 6 can move toward the on-off member. 5 applies an elastic pre-pressure, so that the on-off element 5 blocks the flow of the second fluid channel 2 . In this way, through the elastic pre-pressure applied by the elastic member 6 to the on-off member 5, the on-off member 5 can cut off the flow of the second fluid channel 2 more stably and reliably.
  • the elastic member 6 may have various structures and arrangements.
  • the fluid on-off body 4 includes an elastic member 6 , for example, the elastic member 6 can be connected between the sliding plate 7 and the channel wall of the first fluid channel 1 , as long as it can be switched on and off.
  • the elastic pre-pressure can be applied to the member 5.
  • the elastic member 6 may be a spring or an elastic strip.
  • the fluid on-off member may have various structural forms, but no matter what structural form the fluid on-off member adopts, as long as the above functions can be achieved.
  • the fluid on-off component may include a base plate, a switch-off member 5 and a spring, the spring being connected between the base plate and the channel wall of the first fluid channel 1 .
  • the fluid on-off component is the fluid on-off component described in the second aspect above, wherein the flexible connector is connected to the first channel wall 11 of the first fluid channel 1, so that through the flexible deformation of the flexible connector, The sliding plate 7 can drive the on-off member 5 to move.
  • the elastic skirt 8 when the flexible connecting member is the elastic skirt 8, the elastic skirt 8 can function as the elastic member 6, and at this time, the elastic skirt 8 can be regarded as the elastic member. In this way, the elastic skirt 8 can be automatically returned under the action of its own elastic force, and after the elastic skirt 8 is returned, it can also be used to apply a pre-pressure to the on-off member 5 connected to the sliding plate 7, so that the The interrupter 5 maintains the state of blocking the flow of the second fluid passage 2 under this pre-pressure.
  • the pressure exerted by the first fluid on the sliding plate 7 needs to overcome the pre-pressure of the elastic skirt 8, and then the elastic skirt 8 is elastically deformed to allow the sliding plate 7 to move to drive the on-off member 5 moves so that the second fluid channel 2 flows through.
  • the fluid on-off housing 3 may have various structural forms.
  • the fluid on-off housing 3 is the fluid channel housing 3 described in the third aspect above, wherein the flexible connector is connected to the mouth edge 14 of the open port, so that the fluid on-off body 4 acts as the first A portion of a channel wall 11 .
  • the flexible connector includes a U-shaped wall 9 that protrudes into the first fluid channel 1 , and the opening of the U-shaped wall 9 faces the outside of the first fluid channel 1 .
  • the U-shaped wall 9 can effectively improve the stroke of the sliding plate 7 by using the side wall formed by bending.
  • the flexible connecting member is the elastic skirt 8
  • the sliding plate 7 when the sliding plate 7 moves outward under the pressure of the first fluid, it will drive the bottom wall and both side walls of the U-shaped wall 9 to deform, so that it can store more Large elastic return energy, so that the sliding plate 7 is easier to return, and can apply a greater pre-pressure to the on-off member 5 connected to the sliding plate 7, so that the on-off member 5 can be more stable and reliable.
  • the second fluid channel 2 is interrupted.
  • the elastic member 6 may be disposed between the second channel wall 12 of the second fluid channel 2 and the on-off section 15 of the on-off member 5 extending into the second fluid channel 2 , in this way, in the structure in which the fluid on-off body 4 includes a flexible connector, the flexible connector may not have elasticity or may have substantially negligible elasticity, so as to facilitate the formation of the flexible connector of the fluid on-off body 4.
  • the flexible connector may Use bellows sections.
  • the flexible connector may also have elasticity.
  • the common channel wall 16 between the first fluid channel 1 and the second fluid channel 2 includes a guide mounting cylinder 17 having a through channel, and the on-off member 5 is axially movably penetrated in the guide mounting cylinder 17 .
  • the moving guide stroke of the on-off member 5 can be extended, thereby making the movement of the on-off member 5 more stable.
  • the guide installation cylinder 17 may include a second cylinder section 22 extending into the second fluid channel 2 and a first cylinder section 21 extending into the first fluid channel 1 , which can further extend the on-off The movement of the piece 5 guides the stroke, so that the movement of the on-off piece 5 is more stable.
  • the fluid on-off device includes an elastic member 6 , which is sleeved on the on-off member 5 and abuts against the elastic member 6 and the stop flange in the guide installation cylinder 17
  • the stop flange can be located in the first barrel section 21, or can be located in the second barrel section 22, wherein the pressure in the first fluid channel 1 received by the fluid on-off body 4 is less than that in the fluid on-off body
  • the elastic member 6 can apply an elastic pre-pressure to the on-off member 5, so that the on-off member 5 blocks the flow of the second fluid channel 2.
  • the elastic member 6 can be positioned stably and reliably, and the elastic member 6 can be prevented from shaking during the elastic deformation process.
  • the first fluid discharge check valve 18 can prevent the second fluid in the second fluid channel 2 from entering the first fluid when the pressure of the second fluid is greater than the pressure of the first fluid in the first fluid channel 1. in fluid channel 1.
  • the first fluid discharge one-way valve 18 may be opened after the on-off member 5 passes the second fluid passage 2 through, for example, the opening pressure of the first fluid discharge one-way valve 18 is greater than the active pressure, thus, When the first fluid applies pressure to the fluid on-off body 4, the first fluid discharge one-way valve 18 remains closed until the on-off member 5 passes through the second fluid channel 2, and as the pressure of the first fluid increases, the first fluid discharge check valve 18 remains closed. A fluid discharge check valve 18 is opened to allow the passage of the first fluid. In another embodiment, the opening of the first fluid discharge check valve 18 and the passage of the second fluid passage 2 can be performed simultaneously.
  • the first fluid discharge one-way valve 18 may be opened before the second fluid passage passes through, for example, as the pressure of the first fluid increases, for example, as the rotational speed of the fan increases, the A fluid discharge check valve 18 is opened first, and then when the pressure reaches a certain value, the pressure can drive the on-off member 5 to pass through the second fluid channel.
  • the second fluid channel 2 is provided with a blocking cylinder 20 having a fluid inlet 19, and the internal flow channel of the blocking cylinder 20 is used as a part of the fluid channel segment of the fluid channel 2,
  • the on-off member 5 can be sealed and pressed on the end surface of the cylinder mouth of the blocking cylinder 20 to block the fluid inlet 19, and/or the on-off member 5 can extend into the blocking cylinder 20 to block the fluid inlet 19, so as to block the second fluid inlet 19. Fluid channel 2 is blocked.
  • a smaller flow cross section can be used to realize the flow-through and cut-off of the second fluid channel, thereby making the structure compact.
  • the fluid inlet 19 includes an inner diameter tapered port section 23
  • the on-off member 5 includes an outer diameter tapered plug 24 that cooperates with the inner diameter tapered port section 23 .
  • the outer diameter tapered plug 24 can enter into the inner diameter tapered opening section 23 and be in sealing contact with a shape-adaptive shape, so that the shut-off of the second fluid channel 2 can be made more stable and reliable.
  • a fluid mixing channel 25 is provided in the fluid on-off housing 3 , and the outlet end of the first fluid channel 1 and the outlet end of the second fluid channel 2 communicate with the fluid mixing channel 25 . In this way, the first fluid and the second fluid can be mixed within the fluid mixing channel 25 and flow out from the outlet of the fluid mixing channel 25 .
  • the fluid on-off device can be used for on-off control of any fluid supply.
  • the first fluid channel 1 serves as an air delivery channel
  • the inlet end of the first fluid channel 1 serves as the fan connection end 26
  • the second fluid channel 2 serves as an oxygen delivery channel.
  • the present invention provides an oxygen supply control method
  • the oxygen supply control method is used for oxygen supply control of ventilation therapy equipment
  • the oxygen supply control method comprises: movably disposing an oxygen valve in the oxygen supply channel and communicating with a fan In the air supply channel of the device; when the ventilation therapy device is turned on and the fan is running, the air flow provided by the fan exerts pressure on the oxygen valve, so that the oxygen valve opens the oxygen supply channel to supply oxygen; when the ventilation therapy device is turned off, or the ventilation therapy device is running
  • the oxygen valve can close the oxygen supply channel under the elastic restoring force of the elastic member to stop the supply of oxygen.
  • the oxygen supply can be stably and reliably controlled by the oxygen valve movably arranged in the oxygen supply channel and the air supply channel communicated with the fan, and by the pressure exerted by the air flow supplied by the fan, so that the waste of oxygen can be avoided. And can significantly improve the safety of the use of oxygen in the ventilation treatment equipment.
  • the oxygen valve can be oscillated and includes an oxygen baffle extending into the oxygen supply channel and an air baffle extending into the air supply channel, and the air flow provided by the fan can push the air baffle to swing, Thereby, the oxygen valve plate is driven to swing, so as to flow through the oxygen supply channel to supply oxygen.
  • the oxygen supply control method can be implemented by the above-mentioned fluid on-off device.
  • the present invention provides a ventilation treatment device.
  • the ventilation treatment device includes a fan 27 and the fluid on-off device 28 described in the fourth aspect above, wherein , the first fluid channel 1 serves as an air delivery channel, and the inlet end of the first fluid channel 1 communicates with the outlet end of the fan 27 , and the second fluid channel 2 serves as an oxygen delivery channel.
  • the oxygen use safety of the ventilation treatment device is significantly improved, and thus, the overall performance of the ventilation treatment device is improved.
  • the ventilation therapy device can implement the oxygen supply control method described in the fifth aspect above. In this way, as described above, the oxygen use safety of the ventilation treatment device is significantly improved, and thus, the overall performance of the ventilation treatment device is improved.
  • the ventilation therapy equipment can be a ventilator or a high-flow oxygen therapy device.

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Abstract

一种流体通断体（4）及部件、壳体和装置、通气治疗设备和氧气供给控制方法。流体通断体（4）包括滑动板（7）和柔性连接件，其中，柔性连接件连接于滑动板（7），柔性连接件用于连接在流体通断装置的第一流体通道（1）的第一通道壁（11）上，滑动板（7）用于在第一流体通道（11）内的流体的压力驱动下能够移动以带动柔性连接件柔性变形。该流体通断体（4）结构简单，在实际使用中能够带动通断件（5）安全可靠地通断流体，在通气治疗设备中时能够显著提升通气治疗设备的氧气供给的安全性。

Description

流体通断体及部件、壳体和装置、通气治疗设备和氧气供给控制方法
相关申请的交叉引用
本申请要求2020年12月30日提交的中国专利申请202011607982.2的权益，该申请的内容通过引用被合并于本文。
技术领域
本发明涉及流体通断技术领域，具体地涉及一种流体通断体、一种流体通断部件、一种流体通断壳体、一种流体通断装置、一种氧气供给控制方法和一种通气治疗设备。
背景技术
目前，通气治疗设备是呼吸衰竭患者维持呼吸、保证通气、挽救及延长病人生命至关重要的医疗设备，基于通气治疗设备的通气治疗方法是目前能替代人工的自主通气功能的有效方法，已被普遍使用于各种原因所致的呼吸衰竭、大手术期间的麻醉呼吸管理、呼吸支持治疗和急救复苏中。
通气治疗设备中，氧气源连接流量计，流量计设置在通气治疗设备的外部，通过调节流量计上的旋钮可以控制整机氧气的开启、关闭，同时设置氧气的流量。
在实际使用中，如果机器使用完成后操作者由于疏忽忘记关闭外接氧气，或者使用过程中机器出现故障导致停机的情况下，在流量计未关闭的情形下，外接氧气将会持续给机器内部供氧，这不但造成氧气浪费，还会引发其他事故。如果由于机器内部起火，不能关闭氧气的风险就会更严重。
发明内容
第一方面，本发明提供一种流体通断体，该流体通断体结构简单，在实际使用中能够带动通断件安全可靠地通断流体，例如应用在通气治疗设备中时能够显著提升通气治疗设备的氧气供给的安全性。
为了实现上述目的，本发明提供一种流体通断体，所述流体通断体包括滑动板和柔性连接件，其中，所述柔性连接件连接于所述滑动板，所述柔性连接件用于连接在流体通断装置的第一流体通道的第一通道壁上，所述滑动板用于在所述第一流体通道内的流体的压力驱动 下能够移动以带动所述柔性连接件柔性变形。
在该技术方案中，由于柔性连接件用于连接在流体通断装置的第一流体通道的第一通道壁上，并且滑动板用于在第一流体通道内的流体的压力驱动下能够移动以带动柔性连接件柔性变形，这样，该流体通断体在实际使用中，可以将柔性连接件连接在流体通断装置的第一流体通道的第一通道壁上，可以将通断件连接在滑动板上，而通断件则可以从流体通断装置的第一流体通道伸入到流体通断装置内的与第一流体通道隔离的第二流体通道内并能够活动，这样，通过第一流体通道未供给第一流体时，通断件可以将第二流体通道断流以停止供给第二流体，通过第一流体通道供给第一流体时，第一流体将向滑动板施加压力，在柔性连接件的柔性变形下，第一流体施加到滑动板的压力将驱动滑动板移动，从而带动通断件移动以将第二流体通道通流，以使得第二流体通道能够供给第二流体，这样，可以通过第一流体的是否供给来控制第二流体的供给，从而可以提升第二流体供给的安全可靠性。例如当该流体通断体应用到通气治疗设备中时，第一流体可以为风机供给的空气流，第二流体可以为氧气源供给的氧气，这样，可以避免造成氧气浪费，并能够显著提升通气治疗设备的氧气的使用安全性。
第二方面，本发明提供一种流体通断部件，该流体通断部件包括通断件和以上第一方面中所述的流体通断体，其中，所述通断件和所述滑动板连接；其中，所述通断件用于从流体通断装置的第一流体通道伸入到流体通断装置内的与第一流体通道隔离的第二流体通道内并能够活动；其中，所述通断件用于将所述第二流体通道断流，所述滑动板能够在所述第一流体通道内的流体的压力驱动下移动，以带动所述通断件活动，从而使得所述第二流体通道通流。
这样，如上第一方面中所述，在实际使用中，可以将柔性连接件连接在流体通断装置的第一流体通道的第一通道壁上，通断件则可以从流体通断装置的第一流体通道伸入到流体通断装置内的与第一流体通道隔离的第二流体通道内并能够活动，这样，第一流体通道未供给第一流体时，通断件可以将第二流体通道断流以停止供给第二流体；通过第一流体通道供给第一流体时，第一流体将向滑动板施加压力，在柔性连接件的柔性变形下，第一流体施加到滑动板的压力将驱动滑动板移动，从而带动通断件移动以使得第二流体通道通流，以能够通过该第二流体通道供给第二流体，这样，可以通过第一流体的是否供给来控制第二流体的供给，从而可以提升第二流体供给的安全可靠性。例如当该流体通断部件应用到通气治疗设备中时，第一流体可以为风机供给的空气流，第二流体可以为氧气源供给的氧气，这样，可以避免造成氧气浪费，并能够显著提升通气治疗设备的氧气的使用安全性。
第三方面，本发明提供一种流体通断壳体，所述流体通断壳体内设置有隔离的第一流体通道和第二流体通道，其中，所述第一流体通道的第一通道壁用于连接以上第二方面中所述的流体通断部件的柔性连接件；所述第一通道壁上形成有敞开口，所述敞开口的口边沿用于连接以上第二方面中所述的流体通断部件的柔性连接件，以使得以上第二方面中所述的流体通断部件的流体通断体作为所述第一通道壁的一部分通道壁。
这样，在实际使用中，该流体通断壳体可以将以上第二方面中所述的流体通断部件的柔性连接件连接在敞开口的口边沿上，这样，流体通断体作为第一通道壁的一部分通道壁，而通断件则可以从流体通断装置的第一流体通道伸入到流体通断装置内的与第一流体通道隔离的第二流体通道内并能够活动，这样，第一流体通道未供给第一流体时，通断件可以将第二流体通道断流以停止供给第二流体；通过第一流体通道供给第一流体时，第一流体将向滑动板施加压力，在柔性连接件的柔性变形下，第一流体施加到滑动板的压力将驱动滑动板移动，从而带动通断件移动以使得第二流体通道通流，以能够通过该第二流体通道供给第二流体，这样，可以通过第一流体的是否供给来控制第二流体的供给，从而可以提升第二流体供给的安全可靠性。例如当该流体通断壳体应用到通气治疗设备中时，第一流体可以为风机供给的空气流，第二流体可以为氧气源供给的氧气，这样，可以避免造成氧气浪费，并能够显著提升通气治疗设备的氧气的使用安全性。
第四方面，本发明提供一种流体通断装置，该流体通断装置包括：流体通断壳体，所述流体通断壳体内设置有隔离的第一流体通道和第二流体通道；流体通断部件，所述流体通断部件包括流体通断体和通断件，所述流体通断体活动地设置于所述第一流体通道，所述通断件和所述流体通断体连接，所述通断件从所述第一流体通道伸入到所述第二流体通道内并能够活动；其中，所述流体通断体受到的所述第一流体通道内的压力小于使流体通断体活动的活动压力时，所述通断件将所述第二流体通道断流；其中，所述流体通断体受到所述第一流体通道内第一流体施加的压力大于所述活动压力时，所述流体通断体能够活动并带动所述通断件活动以将所述第二流体通道通流。
在该技术方案中，由于流体通断体活动地设置于第一流体通道，通断件和流体通断体连接，通断件从第一流体通道伸入到第二流体通道内并能够活动，当流体通断体受到的第一流体通道内的压力小于使流体通断体活动的活动压力时，例如第一流体通道内停止供给第一流体时，通断件使得第二流体通道断流，以停止第二流体通道供给第二流体，而当第一流体通道供给第一流体时，流体通断体受到第一流体通道内第一流体施加的压力大于活动压力时，流体通断体能够活动并带动通断件活动以使得第二流体通道通流以供给第二流体，这样，可 以通过第一流体的是否供给来控制第二流体的供给，从而可以提升第二流体供给的安全可靠性。例如该流体通断装置应用在通气治疗设备中时，第一流体可以为风机供给的空气流，第二流体可以为氧气源供给的氧气，这样，可以避免造成氧气浪费，并能够显著提升通气治疗设备的氧气的使用安全性。
第五方面，本发明提供一种氧气供给控制方法，所述氧气供给控制方法用于通气治疗设备的氧气供给控制，所述氧气供给控制方法包括：将氧气阀门能够活动地设置在氧气供给通道和与风机连通的空气供给通道中；在通气治疗设备开机并且风机运转时，风机提供的空气流向氧气阀门施加压力，以使得氧气阀门将氧气供给通道打开以供给氧气；在通气治疗设备关机、或者通气治疗设备运行过程中风机异常或电路异常风机停止运行时，使得氧气阀门将氧气供给通道关闭以停止供给氧气。
这样，通过活动地设置在氧气供给通道和与风机连通的空气供给通道中的氧气阀门，并通过风机供给的空气流施加的压力，可以稳定可靠地控制氧气的供给，从而可以避免造成氧气浪费，并能够显著提升通气治疗设备的氧气的使用安全性。
第六方面，本发明提供一种通气治疗设备，该通气治疗设备包括风机和以上第四方面中所述的流体通断装置，其中，所述第一流体通道作为空气输送通道，并且所述第一流体通道的入口端和所述风机的出口端连通，所述第二流体通道作为氧气输送通道。这样，如上所述，该通气治疗设备的氧气使用安全性得到显著提升。或者，该通气治疗设备能够实现以上第五方面中所述的氧气供给控制方法。这样，如上所述，该通气治疗设备的氧气使用安全性得到显著提升。
本发明的其它特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
附图是用来提供对本发明的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明，但并不构成对本发明的限制。在附图中：
图1是本发明具体实施方式提供的第一种流体通断装置的结构示意图，其中，通断件将第二流体通道断流；
图2是图1的流体通断装置中，通断件将第二流体通道通流的示意图；
图3是本发明具体实施方式提供的第二种流体通断装置的结构示意图，其中，通断件将第二流体通道断流；
图4是图3的流体通断装置中，通断件将第二流体通道通流的示意图；
图5是本发明具体实施方式提供的第三种流体通断装置的结构示意图，其中，通断件将第二流体通道断流；
图6是图5的流体通断装置中，通断件将第二流体通道通流的示意图；
图7是本发明具体实施方式提供的第四种流体通断装置的结构示意图，其中，通断件将第二流体通道断流；
图8是图7的流体通断装置中，通断件将第二流体通道通流的示意图；
图9是本发明具体实施方式提供的第五种流体通断装置的结构示意图，其中，通断件将第二流体通道断流；
图10是图9的流体通断装置中，通断件将第二流体通道通流的示意图；
图11是本发明具体实施方式提供的第六种流体通断装置的结构示意图，其中，通断件将第二流体通道断流；
图12是图11的流体通断装置中，通断件将第二流体通道通流的示意图；
图13是本发明具体实施方式提供的一种通气治疗设备在实际使用中的示意图。
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
参考图1-图12所示的六种不同实施例，第一方面，本发明提供的流体通断体4例如受压活动件包括滑动板7和柔性连接件，其中，柔性连接件连接于滑动板7，柔性连接件用于连接在流体通断装置的第一流体通道1的第一通道壁11上，滑动板7能够在第一流体通道1内的流体的压力驱动下移动以带动柔性连接件柔性变形。
由于柔性连接件用于连接在流体通断装置的第一流体通道1的第一通道壁11上，并且滑动板7能够在第一流体通道1内的流体的压力驱动下移动以带动柔性连接件柔性变形，这样，该流体通断体4在实际使用中，可以将柔性连接件连接在流体通断装置的第一流体通道1的第一通道壁11上，可以将通断件5连接在滑动板7上，而通断件5则可以从流体通断装置的第一流体通道1伸入到流体通断装置内的与第一流体通道1隔离的第二流体通道2内并能够活动，这样，第一流体通道1未供给第一流体时，通断件5可以将第二流体通道2断流以停止供给第二流体；通过第一流体通道1供给第一流体时，第一流体将向滑动板7施加压力，在柔性连接件的柔性变形下，第一流体施加到滑动板7的压力将驱动滑动板7 移动，从而带动通断件5移动以将第二流体通道通流，以使得第二流体通道能够供给第二流体，这样，可以通过第一流体的是否供给来控制第二流体的供给，从而可以提升第二流体供给的安全可靠性。例如当该流体通断体应用到通气治疗设备中时，第一流体可以为风机供给的空气流，第二流体可以为氧气源供给的氧气，这样，可以避免造成氧气浪费，并能够显著提升通气治疗设备的氧气的使用安全性。
柔性连接件可以具有多种结构形式，例如，柔性连接件可以为柔性条，该柔性条的在其长度方向上的一端可以连接于滑动板7，另一端用于连接于第一通道壁11。或者，柔性条可以沿着滑动板7的周向方向布置，也就是，柔性条的周向延伸并连接在滑动板7的边缘处。
或者，可选择的实施例中，柔性连接件为环形的柔性连接件并且连接于滑动板7的四周边缘，这样，柔性连接件可以在滑动板7的整个周向方向柔性变形，以使得滑动板7的移动更均衡平稳。
另外，环形的柔性连接件可以连接于滑动板7的四周边缘以形成柔性裙边，这样，可以易于柔性连接件成型并易于与第一通道壁11连接。
另外，在该流体通断体4中，柔性连接件可以不具有弹性，这样，停止供给第一流体后，可以手动实现滑动板7的回位，或者通过和滑动板7连接的弹性件来实现，或者可以通过连接在通断件5上的弹性件来实现。
另外，在可选择的实施例中，参考图1和图2，柔性连接件为弹性裙边8。这样，弹性裙边8在自身回复弹性力的作用下可以自动回位，并且，弹性裙边8回位后，还可以用于向连接在滑动板7上的通断件5施加预压力，通断件5在这种预压力下保持将第二流体通道2断流的状态。此时，第一流体供给时，第一流体施加到滑动板7上的压力需要克服弹性裙边8的这种预压力，然后弹性裙边8弹性变形以允许滑动板7移动，从而带动通断件5移动以使得第二流体通道2通流。
另外，在实际使用中，可以根据流体通断体的不同布置结构，滑动板7的任一侧板面可以作为第一流体的施压板面。
另外，在实际使用中，第一通道壁11上可以设置有多种不同的结构以连接柔性连接件。例如，一种实施例中，第一通道壁11上向内伸出有筒体，该筒体的筒壁上形成有流体进入开口，柔性连接件可以连接在筒体的径向内筒口上，这样，第一流体可以从流体进入开口进入到筒体内以向滑动板7的朝向筒体内部的板面施加压力。或者，另一种实施例中，柔性连接件用于连接在第一通道壁11上形成的敞开口的口边沿14，以使得流体通断体4作为第一通道壁11的一部分通道壁。也就是，第一通道壁11上形成有敞开口，柔性连接件可以连接 在敞开口的口边沿14上，使得滑动板7位于敞开口内，这样，该流体通断体4将形成第一通道壁11的一部分通道壁，这样，第一流体在第一流体通道内流动时，可以向滑动板7的朝向第一流体通道1的内侧板面施加压力，该压力可以驱使滑动板7向外移动，并在压力取消后例如恢复到正常大气压时，滑动板7向内移动回位。
另外，参考图1和图2，为了更易于滑动板7具有较大的移动行程，柔性连接件包括用于伸入到第一流体通道1内的U形壁9，这样，U形壁9可以利用弯曲形成的侧壁来有效提高滑动板7的行程。例如，在柔性连接件为弹性裙边8时，这种U形壁9还可以储存更大的弹性回位能，以使得滑动板7更易于回位，并能够向连接在滑动板7上的通断件5施加更大的预压力，以使得通断件5能够更稳定可靠地对第二流体通道2进行断流。
另外，在实际使用中，柔性连接件可以通过多种方式连接于第一通道壁11，例如，柔性连接件可以螺钉连接、熔接连接或卡接连接于第一通道壁11。例如，参考图1，柔性连接件的四周边缘连接有连接体13，连接体13的外周面上形成有径向的卡槽10。这样，通过便捷地将卡槽10卡入到第一通道壁11上的相应卡边上，例如在图1中，可以便捷地将卡槽10卡入到敞开口的口边沿14上。
第二方面，本发明提供一种流体通断部件，该流体通断部件包括通断件5和以上第一方面中所述的流体通断体4，其中，通断件5和滑动板7连接；其中，通断件5用于从流体通断装置的第一流体通道1伸入到流体通断装置内的与第一流体通道1隔离的第二流体通道2内并能够活动；其中，通断件5用于将第二流体通道2断流，滑动板7能够在第一流体通道1内的流体的压力驱动下移动，以带动通断件5活动为使得第二流体通道2通流。
这样，如上第一方面中所述的，在实际使用中，可以将柔性连接件连接在流体通断装置的第一流体通道1的第一通道壁11上，通断件5则可以从流体通断装置的第一流体通道1伸入到流体通断装置内的第二流体通道2内，这样，第一流体通道1未供给第一流体时，通断件5可以将第二流体通道2断流以停止供给第二流体；通过第一流体通道1供给第一流体时，第一流体将向滑动板7施加压力，在柔性连接件的柔性变形下，第一流体施加到滑动板7的压力将驱动滑动板7移动，从而带动通断件5移动以将第二流体通道通流，以使得第二流体通道能够供给第二流体，这样，可以通过第一流体的是否供给来控制第二流体的供给，从而可以提升第二流体供给的安全可靠性。例如当该流体通断部件应用到通气治疗设备中时，第一流体可以为风机供给的空气流，第二流体可以为氧气源供给的氧气，这样，可以避免造成氧气浪费，并能够显著提升通气治疗设备的氧气的使用安全性。
另外，通断件5可以为板件或柱件。
另外，参考图1，通断件5连接在滑动板7的板面中心位置处，这样，滑动板7移动时可以带动通断件5更平稳移动。
另外，通断件5和滑动板7可拆卸连接，这样，在实际使用中，根据损坏情况，可以便捷地更换通断件5或滑动板7。当然，通断件5和滑动板7也可以一体成型连接。
第三方面，本发明提供一种流体通断壳体，参考图1和图2，流体通断壳体3内设置有隔离的第一流体通道1和第二流体通道2，其中，第一流体通道1的第一通道壁11用于连接以上第二方面中所述的流体通断部件的柔性连接件；第一通道壁11上形成有敞开口，敞开口的口边沿14用于连接以上第二方面中所述的流体通断部件的柔性连接件，以使得以上第二方面中所述的流体通断部件的流体通断体4作为第一通道壁11的一部分通道壁。
这样，该流体通断壳体在实际使用中，可以将以上第二方面中所述的流体通断部件的柔性连接件连接在敞开口的口边沿14上，这样，流体通断体4作为第一通道壁11的一部分通道壁，而通断件5则可以从流体通断装置的第一流体通道1伸入到流体通断装置内的第二流体通道2内，这样，通过第一流体通道1未供给第一流体时，通断件5可以将第二流体通道2断流以停止供给第二流体，通过第一流体通道1供给第一流体时，第一流体将向滑动板7施加压力，在柔性连接件的柔性变形下，第一流体施加到滑动板7的压力将驱动滑动板7移动，从而带动通断件5移动以将第二流体通道通流，以使得第二流体通道能够供给第二流体，这样，可以通过第一流体的是否供给来控制第二流体的供给，从而可以提升第二流体供给的安全可靠性。例如当该流体通断壳体应用到通气治疗设备中时，第一流体可以为风机供给的空气流，第二流体可以为氧气源供给的氧气，这样，可以避免造成氧气浪费，并能够显著提升通气治疗设备的氧气的使用安全性。
另外，在该流体通道壳体中，第一流体通道1和第二流体通道2之间可以设置有其他流体通道，通断件5可以穿过其他流体通道伸入到第二流体通道2内。或者，参考图1和图2，第一流体通道1和第二流体通道2之间的共用通道壁16上包括贯通通道，贯通通道用于安装以上第二方面中所述的流体通断部件的通断件5。这样，可以相应地简化该流体通道壳体的内部结构，并提升通断件5移动的可靠性。
第四方面，本发明提供一种流体通断装置，参考图1-图12所示的不同实施例，该流体通断装置包括流体通断壳体3和流体通断部件，流体通断壳体3内设置有隔离的第一流体通道1和第二流体通道2，流体通断部件包括流体通断体4和通断件5，流体通断体4活动地设置于第一流体通道1，通断件5和流体通断体4连接，通断件5从第一流体通道1伸入到第二流体通道2内并能够活动；其中，流体通断体4受到的第一流体通道1内的压力小于使 流体通断体活动的活动压力时，通断件5将第二流体通道2断流；其中，流体通断体4受到第一流体通道1内第一流体施加的压力大于活动压力时，流体通断体4能够活动并带动通断件5活动以将第二流体通道2通流。
在该技术方案中，由于流体通断体4活动地设置于第一流体通道1，通断件5和流体通断体4连接，通断件5从第一流体通道1伸入到第二流体通道2内并能够活动，当流体通断体4受到的第一流体通道1内的压力小于使流体通断体5活动的活动压力时，例如第一流体通道1内停止供给第一流体时，通断件5将第二流体通道2断流，以停止第二流体通道2供给第二流体；而当第一流体通道1供给第一流体时，流体通断体受到第一流体通道内第一流体施加的压力大于活动压力时，流体通断体4能够活动并带动通断件5活动以将第二流体通道2通流以供给第二流体，这样，可以通过第一流体的是否供给来控制第二流体的供给，从而可以提升第二流体供给的安全可靠性。例如该流体通断装置应用在通气治疗设备中时，第一流体可以为风机供给的空气流，第二流体可以为氧气源供给的氧气，这样，可以避免造成氧气浪费，并能够显著提升通气治疗设备的氧气的使用安全性。
另外，在该流体通断装置中，一种实施例中，如上所述的，流体通断体4可以设置在第一流体通道1的内部。或者，另一种实施例中，参考图1，流体通断体4作为第一流体通道1的第一通道壁11的一部分通道壁，这可以通过多种方式来实现，例如，一种方式中，第一通道壁11上形成有筒体，而流体通断体4可以滑动密封地设置在筒体内，这样，流体通断体4由于封装在筒体内，也就作为第一通道壁11的一部分通道壁。
此外，参考图3，流体通断装置包括弹性件6，流体通断体4受到的第一流体通道1内的压力小于使流体通断体活动的活动压力时，弹性件6能够向通断件5施加弹性预压力，以使得通断件5将第二流体通道2断流。这样，通过弹性件6向通断件5施加的弹性预压力，通断件5则可以更稳定可靠地将第二流体通道2断流。
当然，弹性件6可以具有多种结构和布置形式。例如，参考图1、图5和图9，流体通断体4包括弹性件6，例如，弹性件6可以连接在滑动板7和第一流体通道1的通道壁之间，只要能够向通断件5施加弹性预压力即可。弹性件6可以为弹簧或弹性条。
另外，在该流体通断装置中，流体通断部件可以具有多种结构形式，但流体通断部件不论采用何种结构形式，只要能够实现上述作用即可。例如，该流体通断部件可以包括基板、通断件5和弹簧，弹簧连接在基板和第一流体通道1的通道壁之间。或者，该流体通断部件为以上第二方面中所述的流体通断部件，其中，柔性连接件连接于第一流体通道1的第一通道壁11，这样，通过柔性连接件的柔性变形，可以使得滑动板7带动通断件5移动。
另外，如上所述的，在柔性连接件为弹性裙边8时，弹性裙边8能够起到弹性件6的作用，此时，弹性裙边8可以视作为该弹性件。这样，弹性裙边8在自身回复弹性力的作用下可以自动回位，并且，弹性裙边8回位后，还可以用于向连接在滑动板7上的通断件5施加预压力，通断件5在这种预压力下保持将第二流体通道2断流的状态。此时，第一流体供给时，第一流体施加到滑动板7上的压力需要克服弹性裙边8的这种预压力，然后弹性裙边8弹性变形以允许滑动板7移动以带动通断件5移动以使得第二流体通道2通流。
另外，在该流体通断装置中，流体通断壳体3可以具有多种结构形式。一种实施例中，流体通断壳体3为以上第三方面中所述的流体通道壳体3，其中，柔性连接件连接于敞开口的口边沿14，以使得流体通断体4作为第一通道壁11的一部分通道壁。
此外，参考图1和图2，柔性连接件包括的U形壁9伸入到第一流体通道1内，U形壁9的开口朝向第一流体通道1的外部。这样，U形壁9可以利用弯曲形成的侧壁来有效提高滑动板7的行程。例如，在柔性连接件为弹性裙边8时，滑动板7在第一流体的压力下向外移动时，将带动U形壁9的底壁和两侧侧壁都发生变形，从而能够储存更大的弹性回位能，以使得滑动板7更易于回位，并能够向连接在滑动板7上的通断件5施加更大的预压力，以使得通断件5能够更稳定可靠地对第二流体通道2进行断流。
另外，参考图3、图7和图11，弹性件6可以设置在第二流体通道2的第二通道壁12和通断件5伸入到第二流体通道2内的通断段15之间，这样，流体通断体4包括柔性连接件的结构中，柔性连接件可以不具有弹性或具有可以基本忽略的弹性，从而便于成型流体通断体4的柔性连接件，例如，柔性连接件可以采用波纹管段。当然，可选择地，柔性连接件也可以具有弹性。
另外，参考图1，第一流体通道1和第二流体通道2之间的共用通道壁16包括具有贯通通道的导向安装筒17，通断件5轴向移动地穿设在导向安装筒17内。这样，通过导向安装筒17，可以延长通断件5的移动导向行程，从而使得通断件5的移动更平稳。
另外，参考图3，导向安装筒17可以包括伸入到第二流体通道2内的第二筒段22和伸入到第一流体通道1内的第一筒段21，这样可以进一步延长通断件5的移动导向行程，从而使得通断件5的移动更进一步平稳。
此外，参考图3，一种实施例中，流体通断装置包括弹性件6，弹性件6套设在通断件5上并抵接在弹性件6和导向安装筒17内的止挡凸缘之间，止挡凸缘可以位于第一筒段21内，或者可以位于第二筒段22内，其中，流体通断体4受到的第一流体通道1内的压力小于使流体通断体活动的活动压力时，弹性件6能够向通断件5施加弹性预压力，以使得通断 件5将第二流体通道2断流。这样，通过第二筒段22，可以为弹性件6进行稳定可靠的定位，避免弹性件6在弹性变形过程中发生晃动。
此外，参考图1和图2，顺着流体流动方向，如图1和图2中的虚线和实线箭头所示，第一流体通道1设置有位于通断件5和流体通断体4下游的第一流体排出单向阀18，第一流体排出单向阀18可以防止第二流体通道2内的第二流体的压力大于第一流体通道1内的第一流体的压力时进入到第一流体通道1内。一种实施例中，第一流体排出单向阀18可以在通断件5将第二流体通道2通流后再开启，比如第一流体排出单向阀18的开启压力大于活动压力，这样，第一流体向流体通断体4施加压力时，第一流体排出单向阀18保持关闭，直到通断件5将第二流体通道2通流后，随着第一流体的压力增大，第一流体排出单向阀18开启，以使得第一流体通过。另一种实施例中，第一流体排出单向阀18开启和第二流体通道2通流可以同时进行。再一种实施例中，第一流体排出单向阀18可以在第二流体通道通流前开启，比如，随着第一流体的压力增大比如随着风机转速的增加，压力增大，第一流体排出单向阀18先打开，然后当压力达到一定的值时，该压力可以驱使通断件5将第二流体通道通流。
此外，参考图1-图12所示的不同实施例，第二流体通道2设置有具有流体入口19的封堵筒20，封堵筒20的内部流道作为流体通道2的一部分流体通道段，通断件5能够封压在封堵筒20的筒口端面上以封堵流体入口19，和/或，通断件5能够伸入封堵筒20中以封堵流体入口19，以将第二流体通道2断流。这样，通过封堵筒20，可以采用较小的流通截面来实现第二流体通道的通流和断流，从而使得结构紧凑。
此外，参考图9和图10，流体入口19包括内径渐缩口段23，通断件5包括与内径渐缩口段23配合的外径渐缩堵头24。这样，外径渐缩堵头24可以进入到内径渐缩口段23并且形状适配地密封接触，从而可以使得第二流体通道2的断流更稳定可靠。
此外，参考图1和图2，流体通断壳体3内设置有流体混合通道25，第一流体通道1的出口端和第二流体通道2的出口端与流体混合通道25连通。这样，第一流体和第二流体可以在流体混合通道25内混合并从流体混合通道25的出口流出。
另外，该流体通断装置可以用于任何流体供给的通断控制。例如，一种实施例中，参考图1，第一流体通道1作为空气输送通道，并且第一流体通道1的入口端作为风机连接端26，第二流体通道2作为氧气输送通道。这样，如上所述，可以稳定可靠地控制氧气的供给，从而可以避免造成氧气浪费，并能够显著提升通气治疗设备的氧气的使用安全性。
第五方面，本发明提供一种氧气供给控制方法，该氧气供给控制方法用于通气治疗设备 的氧气供给控制，氧气供给控制方法包括：将氧气阀门能够活动地设置在氧气供给通道和与风机连通的空气供给通道中；在通气治疗设备开机并且风机运转时，风机提供的空气流向氧气阀门施加压力，以使得氧气阀门将氧气供给通道打开以供给氧气；在通气治疗设备关机、或者通气治疗设备运行过程中风机异常或电路异常风机停止运行时，氧气阀门能够在弹性件的弹性恢复力下将氧气供给通道关闭以停止供给氧气。
这样，通过活动地设置在氧气供给通道和与风机连通的空气供给通道中的氧气阀门，并通过风机供给的空气流施加的压力，可以稳定可靠地控制氧气的供给，从而可以避免造成氧气浪费，并能够显著提升通气治疗设备的氧气的使用安全性。
在该氧气供给控制方法中，氧气阀门可以摆动设置并包括伸入到氧气供给通道的氧气挡片和伸入到空气供给通道内的空气挡片，风机提供的空气流可以推动空气挡片摆动，从而带动氧气阀片摆动，以将氧气供给通道通流以供给氧气。或者，该氧气供给控制方法可以通过以上所述的流体通断装置来实现。
第六方面，本发明提供一种通气治疗设备，参考图13所示的该通气治疗设备的使用示意图，该通气治疗设备包括风机27和以上第四方面中所述的流体通断装置28，其中，第一流体通道1作为空气输送通道，并且第一流体通道1的入口端和风机27的出口端连通，第二流体通道2作为氧气输送通道。这样，如上所述，该通气治疗设备的氧气使用安全性得到显著提升，这样，该通气治疗设备的整体性能得到提升。
或者，通气治疗设备能够实现以上第五方面所述的氧气供给控制方法。这样，如上所述，该通气治疗设备的氧气使用安全性得到显著提升，这样，该通气治疗设备的整体性能得到提升。
该通气治疗设备可以为呼吸机或高流量氧疗仪。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合。为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。

Claims (28)

  1. 一种流体通断体，其特征在于，所述流体通断体(4)包括滑动板(7)和柔性连接件，其中，所述柔性连接件连接于所述滑动板(7)，所述柔性连接件用于连接在流体通断装置的第一流体通道(1)的第一通道壁(11)上，所述滑动板(7)用于在所述第一流体通道(1)内的流体的压力驱动下移动以带动所述柔性连接件柔性变形。
  2. 根据权利要求1所述的流体通断体，其特征在于，所述柔性连接件为环形的柔性连接件并且连接于所述滑动板(7)的四周边缘；
    和/或，
    所述柔性连接件为弹性裙边(8)。
  3. 根据权利要求1或2所述的流体通断体，其特征在于，所述柔性连接件用于连接在所述第一通道壁(11)上形成的敞开口的口边沿(14)，以使得所述流体通断体(4)作为所述第一通道壁(11)的一部分通道壁。
  4. 根据前述任意一项权利要求所述的流体通断体，其特征在于，所述柔性连接件包括用于伸入到所述第一流体通道(1)内的U形壁(9)。
  5. 根据前述任意一项权利要求所述的流体通断体，其特征在于，所述柔性连接件的四周边缘连接有连接体(13)，所述连接体(13)的外周面上形成有径向的卡槽(10)。
  6. 一种流体通断部件，其特征在于，包括通断件(5)和权利要求1-5中任意一项所述的流体通断体(4)，其中，所述通断件(5)和所述滑动板(7)连接；
    其中，所述通断件(5)用于从流体通断装置的第一流体通道(1)伸入到流体通断装置内的与第一流体通道(1)隔离的第二流体通道(2)内并能够活动；
    其中，所述通断件(5)用于将所述第二流体通道(2)断流，所述滑动板(7)用于在所述第一流体通道(1)内的流体的压力驱动下移动，以带动所述通断件(5)活动以将所述第二流体通道(2)通流。
  7. 根据权利要求6所述的流体通断部件，其特征在于，所述通断件(5)连接在所述滑动板(7)的板面中心位置处；和/或，所述通断件(5)和所述滑动板(7)可拆卸连接。
  8. 一种流体通断壳体，其特征在于，所述流体通断壳体(3)内设置有隔离的第一流体通道(1)和第二流体通道(2)，其中，
    所述第一流体通道(1)的第一通道壁(11)用于连接权利要求6或7所述的流体通断部件的柔性连接件；
    所述第一通道壁(11)上形成有敞开口，所述敞开口的口边沿(14)用于连接权利要求6或7所述的流体通断部件的柔性连接件，以使得权利要求6或7所述的流体通断部件的流体通断体(4)作为所述第一通道壁(11)的一部分通道壁。
  9. 根据权利要求8所述的流体通断壳体，其特征在于，所述第一流体通道(1)和所述第二流体通道(2)之间的共用通道壁(16)上包括贯通通道，所述贯通通道用于安装权利要求6或7所述的流体通断部件的通断件(5)。
  10. 一种流体通断装置，其特征在于，包括：
    流体通断壳体(3)，所述流体通断壳体(3)内设置有隔离的第一流体通道(1)和第二流体通道(2)；
    流体通断部件，所述流体通断部件包括流体通断体(4)和通断件(5)，所述流体通断体(4)活动地设置于所述第一流体通道(1)，所述通断件(5)和所述流体通断体(4)连接，所述通断件(5)从所述第一流体通道(1)伸入到所述第二流体通道(2)内并能够活动；
    其中，所述流体通断体(4)受到的所述第一流体通道(1)内第一流体施加的压力小于使流体通断体活动的活动压力时，所述通断件(5)将所述第二流体通道(2)断流；
    其中，所述流体通断体(4)受到所述第一流体通道(1)内第一流体施加的压力大于所述活动压力时，所述流体通断体(4)能够活动并带动所述通断件(5)活动以将所述第二流体通道(2)通流。
  11. 根据权利要求10所述的流体通断装置，其特征在于，所述流体通断体(4)作为所述第一流体通道(1)的第一通道壁(11)的一部分通道壁。
  12. 根据权利要求10或11所述的流体通断装置，其特征在于，所述流体通断装置包括弹性件(6)，所述流体通断体(4)受到的所述第一流体通道(1)内的压力小于使流体通断体活动的活动压力时，所述弹性件(6)能够向所述通断件(5)施加弹性预压力，以使得所述通断件(5)将所述第二流体通道(2)断流。
  13. 根据权利要求12所述的流体通断装置，其特征在于，所述流体通断体(4)包括所述弹性件。
  14. 根据权利要求13所述的流体通断装置，其特征在于，所述流体通断部件为权利要求6或7所述的流体通断部件，其中，所述柔性连接件连接于所述第一流体通道(1)的第一通道壁(11)。
  15. 根据权利要求14所述的流体通断装置，其特征在于，在所述柔性连接件为弹性裙 边(8)时，所述弹性裙边(8)作为所述弹性件。
  16. 根据权利要求14所述的流体通断装置，其特征在于，所述流体通断壳体(3)为权利要求8或9所述的流体通道壳体(3)，其中，所述柔性连接件连接于所述敞开口的口边沿(14)，以使得所述流体通断体(4)作为所述第一通道壁(11)的一部分通道壁。
  17. 根据权利要求16所述的流体通断装置，其特征在于，所述柔性连接件包括的U形壁(9)伸入到所述第一流体通道(1)内，所述U形壁(9)的开口朝向所述第一流体通道(1)的外部。
  18. 根据权利要求12-17中任意一项所述的流体通断装置，其特征在于，所述弹性件(6)设置在所述第二流体通道(2)的第二通道壁(12)和所述通断件(5)伸入到所述第二流体通道(2)内的通断段(15)之间。
  19. 根据权利要求10-18中任意一项所述的流体通断装置，其特征在于，所述第一流体通道(1)和所述第二流体通道(2)之间的共用通道壁(16)包括具有贯通通道的导向安装筒(17)，所述通断件(5)轴向移动地穿设在所述导向安装筒(17)内。
  20. 根据权利要求19所述的流体通断装置，其特征在于，所述导向安装筒(17)包括伸入到所述第一流体通道(1)内的第一筒段(21)和伸入到所述第二流体通道(2)内的第二筒段(22)。
  21. 根据权利要求20所述的流体通断装置，其特征在于，所述流体通断装置包括弹性件(6)，所述弹性件(6)套设在所述通断件(5)上并抵接在所述弹性件(6)和所述导向安装筒(17)内的止挡凸缘之间，其中，所述流体通断体(4)受到的所述第一流体通道(1)内的压力小于使流体通断体活动的活动压力时，所述弹性件(6)能够向所述通断件(5)施加弹性预压力，以使得所述通断件(5)将所述第二流体通道(2)断流。
  22. 根据权利要求10-21中任意一项所述的流体通断装置，其特征在于，顺着流体流动方向，所述第一流体通道(1)设置有位于所述通断件(5)和所述流体通断体(4)下游的第一流体排出单向阀(18)。
  23. 根据权利要求10-22中任意一项所述的流体通断装置，其特征在于，所述第二流体通道(2)设置有具有流体入口(19)的封堵筒(20)，所述封堵筒(20)的内部流道作为所述流体通道(2)的一部分流体通道段，所述通断件(5)能够封压在所述封堵筒(20)的筒口端面上以封堵所述流体入口(19)，和/或，所述通断件(5)能够伸入所述封堵筒(20)中以封堵所述流体入口(19)，以将所述第二流体通道(2)断流。
  24. 根据权利要求23所述的流体通断装置，其特征在于，所述流体入口(19)包括内 径渐缩口段(23)，所述通断件(5)包括与所述内径渐缩口段(23)配合的外径渐缩堵头(24)。
  25. 根据权利要求10-23中任意一项所述的流体通断装置，其特征在于，所述流体通断壳体(3)内设置有流体混合通道(25)，所述第一流体通道(1)的出口端和所述第二流体通道(2)的出口端均与所述流体混合通道(25)连通。
  26. 根据权利要求10-25中任意一项所述的流体通断装置，其特征在于，所述第一流体通道(1)作为空气输送通道，并且所述第一流体通道(1)的入口端作为风机连接端(26)，所述第二流体通道(2)作为氧气输送通道。
  27. 一种氧气供给控制方法，其特征在于，所述氧气供给控制方法用于通气治疗设备的氧气供给控制，所述氧气供给控制方法包括：
    将氧气阀门能够活动地设置在氧气供给通道和与风机连通的空气供给通道中；
    在通气治疗设备开机并且风机运转时，风机提供的空气流向氧气阀门施加压力，以使得氧气阀门将氧气供给通道打开以供给氧气；
    在通气治疗设备关机、或者通气治疗设备运行过程中风机异常或电路异常风机停止运行时，使得氧气阀门将氧气供给通道关闭以停止供给氧气。
  28. 一种通气治疗设备，其特征在于，包括风机(27)和权利要求10-26中任意所述的流体通断装置(28)，其中，所述第一流体通道(1)作为空气输送通道，并且所述第一流体通道(1)的入口端和所述风机(27)的出口端连通，所述第二流体通道(2)作为氧气输送通道；
    或者，
    所述通气治疗设备能够实现权利要求27所述的氧气供给控制方法。
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