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WO2025031062A1 - Dispositif de brume douce - Google Patents

Dispositif de brume douce Download PDF

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Publication number
WO2025031062A1
WO2025031062A1 PCT/CN2024/102828 CN2024102828W WO2025031062A1 WO 2025031062 A1 WO2025031062 A1 WO 2025031062A1 CN 2024102828 W CN2024102828 W CN 2024102828W WO 2025031062 A1 WO2025031062 A1 WO 2025031062A1
Authority
WO
WIPO (PCT)
Prior art keywords
groove
soft mist
mist device
rotating body
protrusion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/102828
Other languages
English (en)
Chinese (zh)
Inventor
张飞
孙小元
赵光涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Xinmaide Medical Device Technology Co Ltd
Original Assignee
Suzhou Xinmaide Medical Device Technology Co Ltd
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 CN202311003765.6A external-priority patent/CN116920217B/zh
Priority claimed from CN202421274379.0U external-priority patent/CN222955767U/zh
Priority claimed from CN202410723186.7A external-priority patent/CN118340968A/zh
Priority claimed from CN202421297561.8U external-priority patent/CN222955768U/zh
Application filed by Suzhou Xinmaide Medical Device Technology Co Ltd filed Critical Suzhou Xinmaide Medical Device Technology Co Ltd
Publication of WO2025031062A1 publication Critical patent/WO2025031062A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes

Definitions

  • the present application relates to the field of drug delivery devices, and in particular to a soft mist device.
  • inhalation drug delivery is a better treatment method.
  • Traditional technology, inhalation drug delivery devices mainly convert liquid preparations such as drugs, nutrients or nicotine liquid into tiny particles that can be inhaled by the human body through atomization, thereby achieving the purpose of painless, rapid and effective treatment.
  • a soft mist device including an upper shell and a main rotor, the upper shell is rotatably connected to the main rotor, a counting assembly is provided on the outer wall of the main rotor, the counting assembly includes a screw connected to the main rotor and a slider moving along the screw; a first groove is provided on the inner wall of the upper shell, the first groove is configured to drive the screw to rotate, thereby driving the slider to move to realize the counting function.
  • a soft mist device comprises a spray assembly arranged inside an upper shell, the spray assembly comprising a matching piece, an elastic piece and a nozzle, the matching piece and the elastic piece are sealed by inclined interference to form a chamber for containing a fluid, and the nozzle is fixed in the chamber by the elastic piece; wherein the upper shell can trigger the nozzle to spray once every half a turn.
  • a soft mist device includes a tube rack assembly arranged inside a main rotating body, the tube rack assembly includes a fixing frame and an infusion tube passing through the fixing frame; wherein the fixing frame is used to be clamped and fixed with a medicine bottle, one end of the infusion tube is inserted into the medicine bottle, and the other end is used to be connected to a spray assembly.
  • FIG1 is a schematic diagram of the structure of a soft mist device according to some embodiments of one or more embodiments.
  • FIG. 2 is a schematic diagram of the assembly structure of the upper housing and the main swivel according to some embodiments of one or more embodiments.
  • FIG. 3 is an exploded view of the upper housing and the main rotating body according to some embodiments of one or more embodiments. Schematic diagram.
  • FIG. 4 is a schematic diagram of the structure of a counting component according to some embodiments of one or more embodiments.
  • FIG. 5 is a schematic diagram of the structure inside the upper housing according to some embodiments of one or more embodiments.
  • 6a to 6c are schematic diagrams showing the distribution of first grooves according to some embodiments of one or more embodiments.
  • FIG. 7 is a schematic diagram of a locking structure between an upper housing and a main rotating body according to some embodiments of one or more embodiments.
  • FIG. 8 is a schematic diagram of cooperation between a counting component and a locking member according to some embodiments of one or more embodiments.
  • FIG. 9 is a schematic diagram of the installation structure of the locking member in FIG. 8 .
  • FIG. 10 is a schematic diagram of another locking structure between the upper housing and the main rotating body according to some embodiments of one or more embodiments.
  • FIG. 11 is a schematic diagram of cooperation between a counting component and another locking member according to some embodiments of one or more embodiments.
  • FIG. 12 is a schematic diagram of the installation position of the torsion spring in FIG. 11 .
  • FIG. 13 is a schematic diagram of the installation structure of the locking member in FIG. 11 .
  • FIG. 14 is a schematic diagram of the structure of a jetting assembly according to some embodiments of one or more embodiments.
  • FIG. 15 is a schematic diagram of a partial structure of a spray assembly according to some embodiments of one or more embodiments.
  • FIG. 16 is a schematic diagram of the exploded structure of FIG. 15 .
  • FIG. 17 is a schematic diagram of a partial structure of another injection assembly according to some embodiments of one or more embodiments.
  • FIG. 18 is a schematic diagram of the exploded structure of FIG. 17 .
  • FIG. 19 is a schematic diagram of the structure of the infusion tube when the bottle cap is not pierced according to some embodiments of one or more embodiments.
  • FIG. 20 is a schematic diagram of the structure after the infusion tube pierces the bottle cap according to some embodiments of one or more embodiments.
  • FIG. 21 is a schematic diagram showing the cooperation between a spike structure and an inclined cavity bottom according to some embodiments of one or more embodiments.
  • FIG. 22 is a schematic diagram of the connection structure between the infusion tube and the injection assembly according to some embodiments of one or more embodiments.
  • FIG. 23 is a schematic diagram of the structure of a pump unit according to some embodiments of one or more embodiments.
  • the present application discloses a soft mist device, which includes an upper shell 1 , a main rotating body 2 and a counting assembly 3 .
  • the upper shell 1 and the main rotating body 2 are both roughly cylindrical structures, which are assembled up and down, and the upper shell 1 and the main rotating body 2 can rotate relative to each other. It should be noted that the device can release soft mist once every half turn of the upper shell 1 relative to the main rotating body 2. This is a prior art and will not be described in detail.
  • the counting assembly 3 is arranged on the outer wall of the main rotating body 2, and the assembly includes a screw 31 connected to the main rotating body 2 and a slider 32 moving along the screw 31.
  • the screw 31 extends along the axial direction of the device and can rotate circumferentially, and the slider 32 is sleeved on the screw 31 and threadedly connected thereto.
  • a first groove 11 is arranged on the inner wall of the upper shell 1, and the groove is configured to drive the screw 31 to rotate.
  • the counting function can be realized in conjunction with the scale line 23 on the side, so that the patient can clearly understand information such as drug consumption and the remaining life of the device.
  • a trigger unit 33 is provided at one end of the screw rod 31 close to the main rotor 2, and the trigger unit 33 can be integrally formed at the top of the screw rod 31, and the trigger unit 33 only partially contacts and cooperates with the first groove 11, so as to control the rotation of the screw rod 31 within a constant range. For example, each time the first groove 11 contacts part of the trigger unit 33, the screw rod 31 can only rotate half a circle.
  • the touch unit 33 includes a first touch portion 331 and a second touch portion 332.
  • the first touch portion 331 is a flat plate structure arranged along the central axis of the screw 31, and has teeth on both sides thereof that match the first groove 11.
  • the first touch portion 331 is used to mesh with the first groove 11.
  • the second touch portion 332 is also a flat plate structure arranged along the central axis of the screw 31, but is not in contact with the first touch portion 331.
  • the second touch portion 332 is vertically crossed, and is used to abut against the inner wall of the upper housing 1 to prevent the top of the screw 31 from shaking, swaying, and other problems during the rotation of the screw 31, thereby improving the stability of the transmission between the touch unit 33 and the screw 31.
  • the second touch portion 332 does not contact the first groove 11, so as not to interfere with the transmission between the first groove 11 and the first touch portion 331.
  • the length of the second touch portion 332 can be set to be smaller than the length of the first touch portion 331, so as to avoid contact with the first groove 11.
  • the number of the first grooves 11 is one or N, where N is a positive integer.
  • FIG6b is a standard counting design, in which there are two first grooves 11, one of which is distributed on a half circle of the inner wall of the upper shell 1, and the other first groove 11 is distributed on the other half circle of the inner wall of the upper shell 1. Therefore, each half turn of the upper shell 1 will cause the screw 31 to rotate half a circle, and the slider 32 will move a section and count once, and the corresponding device will release soft mist once.
  • each rotation of the upper shell 1 causes the screw 31 to rotate half a circle, and causes the slider 32 to move a section and count once, but the device actually releases the soft mist twice. That is to say, without changing the counting component 3, by reducing the number of first grooves 11, the counting component 3 can be used for more doses or more actuation counts (when releasing the same number of soft mists, the stroke of the slider 32 is halved).
  • each half circle of the upper shell 1 actuates the screw 31 to rotate one circle, and causes the slider 32 to count twice, but the device actually releases soft mist once. It can be understood that, on the basis of not changing the counting component 3, by increasing the number of first grooves 11, the counting component 3 can be used for fewer doses or fewer actuation counts (when releasing the same number of soft mists, the stroke of the slider 32 is doubled).
  • the upper shell 1 can adjust the movement stroke of the slider 32 by setting different numbers of first grooves 11, so as to meet the design requirements of different dosages of medicine bottles 9 or actuation counting, thereby reducing the modification cost of counting devices of different batches or models and improving the scope of application.
  • the outer wall of the main rotating body 2 is provided with a first mounting portion 21 and a second mounting portion 22 in sequence along the axial direction of the device, and the screw rod 31 is rotatably connected to the first and second mounting portions 22, respectively.
  • the first mounting portion 21 may be an axial hole seat
  • the second mounting portion 22 may be a C-shaped card seat, one end of the screw rod 31 is inserted into the axial hole seat, and the other end is directly inserted into the C-shaped card seat, and this design enables the screw rod 31 to be quickly installed and removed.
  • the screw rod 31 is provided with a limiting portion 311 close to the second mounting portion 22 for limiting its own axial movement, thereby preventing the transmission between the first groove 11 and the trigger unit 33 from being affected, thereby improving the counting stability of the device.
  • a scale line 23 is provided on one side of the counting component 3 for the slider 32 to move and count. Taking 120 sprays as an example, the bottom of the scale line 23 is marked as 120, corresponding to the full dose of the drug in the device, and the top of the scale line 23 is marked as 0, corresponding to the empty dose of the drug in the device.
  • the counting assembly 3 further includes a push arm 34 integrally formed on one side of the slider 32, and the push arm 34 extends toward the upper housing 1. Due to the use cycle of the device or to meet the requirements of hygiene and safety, when the counting function of the device fails, part of the push arm 34 enters between the upper housing 1 and the main rotating body 2 to limit the relative rotation of the two, thereby achieving the purpose of the locking device.
  • a second groove 12 is further provided on the inner wall of the upper shell 1.
  • the second groove 12 is located in the bottom area of the upper shell 1 and is continuous in the circumferential direction, so as to rotate with the first protrusion 25 on the main rotating body 2 to form an anti-slip structure.
  • a third groove 13 is provided on the second groove 12, and the third groove 13 is located above the second groove 12, and is used to cooperate with the locking member 4 to achieve a locking function.
  • the number of the third grooves 13 is preferably two, distributed at 180° on both sides of the inner wall of the upper shell 1, so as to form an effective cooperation with the action of releasing soft mist of the device.
  • a fourth groove 24 is provided on the portion where the main swivel 2 overlaps with the upper shell 1, and the groove extends to the top of the main swivel 2, so that the main swivel 2 can be injection molded (the difficulty and cost of molding the straight-through fourth groove 24 are relatively low).
  • a first protrusion 25 is provided on the portion where the main swivel 2 overlaps with the upper shell 1, and the first protrusion 25 is similar to a bridge structure and is horizontally connected to the outside of the fourth groove 24, and forms a hollow area with the fourth groove 24, for installing the compressed locking member 4.
  • the locking member 4 is arranged in the fourth groove 24, and is pressed and limited by the first protrusion 25 assembled in the second groove 12.
  • the locking member 4 can be a U-shaped spring piece, which includes a straight section located in the fourth groove 24, a clamping section located inside the first protrusion 25, and a connecting section connecting the straight section and the clamping section.
  • the first protrusion 25 presses the clamping section in the hollow area (it can also be said to be a static position), and the connecting section is deformed to accumulate elastic force; when the counting function of the device fails, the push arm 34 can push the spring piece out from the inside of the first protrusion 25 to release the pressure on the clamping section.
  • the clamping section actively clamps into the third groove 13, thereby limiting the relative rotation of the upper shell 1 and the main rotating body 2, so that the device is locked.
  • the straight section of the locking member 4 is provided with an opening 41, and the opening 41 is provided near the meter.
  • a bending portion 42 is provided at one end of the digital component 3, and a limit block 26 and a stop block 27 are provided in the fourth groove 24.
  • the limit block 26 passes through the opening 41 and cooperates with the stop block 27 to hold the bending portion 42, thereby fixing the locking member 4 in the fourth groove 24, thereby improving the stability of the installation of the locking member 4.
  • the curved portion 42 has a certain ability to deform and guide.
  • the curved portion 42 can enhance the interference with the stopper 27 through slight deformation, thereby ensuring its own installation effect.
  • the curved portion 42 can guide the straight section of the locking member 4 to disengage from the limit block 26, thereby smoothly moving out from the inner side of the first protrusion 25.
  • the stopper 26 is provided with a stopper surface 261 and a curved surface 262 on one side facing the stopper 27, and the stopper surface 261 and the curved surface 262 are sequentially connected from the inside to the outside.
  • the stopper surface 261 is used to limit the axial movement of the locking member 4, and the curved surface 262 is used to guide the locking member 4 to jump over the stopper 26.
  • the thickness dimension of the stopper surface 261 is less than or equal to the thickness dimension of the straight section of the locking member 4, and the radius dimension of the curved surface 262 is greater than the thickness dimension of the stopper surface 261, so that the locking member 4 can smoothly jump over the stopper 26 with the help of the push arm 34.
  • the front end of the push arm 34 has a lifting surface 341 that fits with the curved portion 42, and the lifting surface is used to lift the curved portion 42 outward from the fourth groove 24, so as to separate it from the stop block 26.
  • the lifting surface 341 is an inclined surface integrally formed at the front end of the push arm 34, and the included angle thereof is about 10°-30°, so as to be inserted between the curved portion 42 and the fourth groove 24.
  • a third groove 13 is also provided on the inner wall of the upper shell 1, which is also used to cooperate with the locking piece 4 to achieve the locking function, and the number of the third grooves 13 is preferably two, distributed at 180° on both sides of the inner wall of the upper shell 1.
  • a fourth groove 24 is provided on the overlapping part of the main swivel 2 and the upper shell 1, and the groove extends straight to the top of the main swivel 2, and a clamping block 28 is provided on each side of the fourth groove 24.
  • the clamping block 28 can be integrally formed in the middle position of the fourth groove 24, and is used to press the locking piece 4 to make it stationary in the groove.
  • the locking member 4 is still arranged in the fourth groove 24, but the locking member 4 is connected to the fourth groove 24 by rotation through the torsion spring 5 and is clamped and limited by the clamping block 28.
  • the locking member 4 can be a plate, the top of which can be connected to the fourth groove 24 through a rotating shaft structure, so that it can be rotated and fixed in the groove, and the plate is clamped and laid flat by the clamping blocks 28 on both sides, while the torsion spring 5 is in a compressed and force-storing state. As the number of counts increases, the push arm 34 gradually approaches the plate.
  • the push arm 34 is inserted between the plate and the fourth groove 24, so that the plate is freed from the compression of the clamping block 28, and is clamped into the third groove 13 under the action of the torsion spring 5, thereby limiting the relative rotation of the upper shell 1 and the main rotating body 2, so that the device is locked.
  • the locking member 4 since the locking member 4 is rotatably installed in the groove, its own position will not be offset, and it can only be expanded to realize the locking function after the push arm 34 is in place, which avoids the influence of external factors on the stability and reliability of the locking function of the device.
  • the torsion spring 5 has stable elasticity. Compared with the U-shaped spring in the prior art, even if it is in a compressed state for a long time, the torsion spring 5 can still provide stable elastic force for the locking member 4, thereby ensuring that the locking member 4 is fully in contact with the third groove 13, further improving the stability and reliability of the locking function.
  • the bottom of the locking member 4 has a protruding snap-in portion, which forms a hook-shaped structure to expand the contact range with the third groove 13 and improve the locking effect.
  • a notch is provided at one end of the fourth groove 24 away from the counting assembly 3, and the rotation point of the locking member 4 is located in the notch, so as to avoid interference between the groove bottom and the locking member 4 and the flipping. It can be understood that in other embodiments, the notch can be replaced by deepening the groove bottom or raising the position of the rotation connection, which can also avoid interference.
  • a fifth groove 241 is provided on the fourth groove 24
  • a sixth groove 43 is provided on the locking member 4
  • both ends of the torsion spring 5 are respectively arranged in the fifth groove 241 and the sixth groove 43 , so as to improve the stability of the position of the torsion spring 5 .
  • the locking member 4 is provided with a seventh groove 44 on both sides, so that the block 28 can better restrict the locking member 4, and the seventh groove 44 has an inclined contact surface 441, which slopes downward from the middle of the locking member 4 to the side, so that it has a certain guiding effect, and can be used to guide the locking member 4 to separate from the block 28.
  • the radial cross section of the block 28 is an arc, and this structure is conducive to the installation and separation of the locking member 4. The block 28 presses the locking member 4 into the fourth groove 24 by abutting against the contact surface 441.
  • the soft mist device further includes a spray assembly 6 disposed inside the upper housing 1 and/or a pipe rack assembly 7 disposed inside the main rotating body 2 .
  • the present application further discloses a soft mist device, comprising a spray assembly 6 disposed inside an upper shell 1 , the assembly being used to atomize the fluid in the device and release the soft mist outwardly.
  • the spray assembly 6 includes a matching piece 61, an elastic piece 62 and a nozzle 63.
  • the matching piece 61 is configured to be a shape that matches the main body of the spray assembly 6 (i.e., the flow guide member 66), such as a circular structure, for ease of installation and sealing.
  • the elastic piece 62 is a truncated cone structure, with a customized hole in the center that matches the size of the nozzle 63, and a customized flared opening at the bottom that matches the matching piece 61.
  • the nozzle 63 has a multi-stage filtering structure (not shown) in it, and the fluid can be decomposed into tiny liquid particles under high pressure after passing through the multi-stage filtering structure.
  • the nozzle 63 is held in the chamber 64 by the elastic member 62 and is kept at a certain distance from the bottom of the chamber 64.
  • the nozzle 63 is held in the chamber 64 by the elastic member 62 and is kept at a certain distance from the bottom of the chamber.
  • the nozzle 63 can be triggered to spray once every half turn of the upper shell 1.
  • the upper end surface of the matching member 61 is provided with a downwardly inclined sealing surface 611 from the outside to the inside, and the bottom of the elastic member 62 interferes with the sealing surface 611.
  • the prior art e.g., the Chinese patent with patent number CN 220917888 U
  • the present application eliminates the convex part of the matching member 61 in the sealing structure, and adopts the downwardly inclined sealing surface 611 to directly cooperate with the bottom of the elastic member 62, thereby sealing the chamber 64.
  • the nozzle 63 (the nozzle 63 is a consumable part) from colliding with the convex part during assembly and ensure its normal atomization function; on the other hand, the design of the sealing surface 611 gradually tilting downward from the outside to the inside can limit the bottom of the elastic member 62 from turning outward, avoid the sealing performance of the fluid chamber 64 from being reduced or failing due to high pressure, and improve the reliability of the seal.
  • the upper end surface of the matching member 61 is further provided with a step 612, which is located outside the sealing surface 611 and is used to limit the bottom of the elastic member 62 from everting outward.
  • the step 612 can further limit the bottom of the elastic member 62 from everting outward, thereby improving the matching effect between the bottom of the elastic member 62 and the sealing surface 611.
  • the step 612 can also form a new seal with the bottom of the elastic member 62, further enhancing the sealing performance of the flow chamber 64.
  • an arc-shaped third protrusion 621 is provided at the bottom of the elastic member 62, and the third protrusion 621 forms a surface seal and a line seal with the sealing surface 611 and the step 612 respectively.
  • the surface seal is the main seal
  • the line seal is the secondary seal, and the two cooperate to further improve the sealing performance between the elastic member 62 and the matching member 61.
  • the angle between the sealing surface 611 and the horizontal plane is 5° to 45°, and/or the interference between the sealing surface 611 and the elastic member 62 is 0.05mm to 0.5mm.
  • the sealing surface 611 can better limit the bottom eversion of the elastic member 62, while increasing the interference between the two to achieve a better sealing effect.
  • the angle between the sealing surface 611 and the horizontal plane is preferably 10° to 30°.
  • the angle can be 20°, 22°, 24°, 30°, and so on.
  • the bottom of the elastic member 62 can be fully pressed against the sealing surface 611.
  • the interference amount between the bottom of the elastic member 62 and the sealing surface 611 is preferably 0.1 mm to 0.4 mm, for example, the interference amount can be 0.2 mm, 0.3 mm, 0.4 mm, etc.
  • the injection assembly 6 further includes a pressing piece 65 for pressing the elastic piece 62 onto the matching piece 61, and the pressing piece 65 is preferably a hard metal set to accommodate and fasten the elastic piece 62.
  • the pressing piece 65 can be directly welded to the matching piece 61, for example, the pressing piece 65 and the matching piece 61 are circumferentially sealed and welded in a full welding manner (not shown), or a locking piece such as a threaded sleeve or a ferrule is provided on the pressing piece 65, and the locking piece can be connected to the main body of the injection assembly 6, so that the pressing piece 65 can be detachably fixed to the matching piece 61 (see Figures 15 and 17).
  • a concave corner 651 is provided at the bottom of the pressing piece 65, and a second protrusion 613 is provided at the upper edge of the matching piece 61.
  • the pressing piece 65 and the matching piece 61 are assembled together through the concave corner 651 and the second protrusion 613, which plays a role of pre-positioning.
  • the spray assembly 6 further includes a flow guide member 66 disposed in the upper housing 1.
  • the flow guide member 66 is a tubular structure, and a fluid channel 661 is disposed inside the flow guide member 66 for guiding the fluid in the infusion tube 72 to flow to the chamber 64.
  • the top of the flow guide member 66 is used to install the chamber 64, and an upper sealing ring is disposed between the matching piece 61 and the top of the flow guide member 66.
  • the bottom of the flow guide member 66 is used to install a sealing unit, and the unit includes a lower sealing ring disposed at the bottom of the flow guide member 66.
  • the soft mist device further includes a counting assembly 3 disposed on the outer wall of the main rotating body 2 and/or a pipe rack assembly 7 disposed inside the main rotating body 2 .
  • a soft mist device includes a pipe rack assembly 7 arranged inside the main rotating body 2, and the assembly includes a fixing frame 71 and an infusion tube 72 passing through the fixing frame 71.
  • the fixing frame 71 is used to be clamped and fixed with the medicine bottle 9 so that the medicine bottle 9 can be quickly loaded and unloaded.
  • One end of the infusion tube 72 is inserted into the medicine bottle 9, and the other end is used to connect with the injection assembly 6.
  • the fluid in the flow guide member 66 When the pipe rack assembly 7 moves toward the upper shell 1 (upward), the fluid in the flow guide member 66 will be squeezed into the chamber 64, and then sprayed outward after being atomized by the nozzle 63 to form soft mist, which is called the injection state; when the pipe rack assembly 7 moves away from the upper shell 1 (downward), a vacuum environment is formed in the flow guide member 66, and the fluid in the medicine bottle 9 is sucked into the fluid channel 661 under the action of negative pressure, which is called the upper liquid state.
  • a bottle cap 91 is provided at the mouth of the medicine bottle 9, and the bottle cap 91 has an extension portion 911 extending into the interior of the medicine bottle 9, thereby reserving sufficient depth to accommodate or cooperate with Infusion tube 72, so as to facilitate the assembly operation of medicine bottle 9 and tube rack assembly 7.
  • a cavity 912 with a sealed bottom is provided in the extension part 911 to seal the medicine bottle 9 and prevent the fluid in the bottle from contacting with air, impurities, etc. to cause contamination or failure.
  • the bottom of the cavity 912 is thick in the middle and thin at the edge, so that when the bottom of the cavity 912 is punctured, the edge is most easily separated from the extension part 911, and the bottom of the cavity 912 is not easy to deform to affect the puncture effect.
  • the bottom of the infusion tube 72 is inclined and partially extends downward to form a spike structure 721.
  • the spike structure 721 can improve the puncture effect and reduce the puncture operation force.
  • the lowest point of the spike structure 721 will first puncture and open a gap, avoiding the problem of debris contamination and clogging of the infusion tube 72 caused by instantaneous complete destruction of the bottom of the cavity 912.
  • the vertical section of the spike structure 721 is triangular and the surface where its hypotenuse is located is connected to the bottom of the infusion tube 72.
  • the outer peripheral surface of the spike structure 721 is a curved surface 262, thereby forming an arc-shaped cutting line adapted to the bottom of the cavity 912, thereby improving the puncture effect.
  • the bottom inclination angle of the infusion tube 72 is 20° to 60°. If the inclination angle is less than 20°, the bottom guiding performance of the infusion tube 72 is poor, and the infusion tube 72 is easy to cause vertical shear force to the bottom of the cavity 912, resulting in complete destruction of the bottom of the cavity 912; if the inclination angle is greater than 60°, the bottom of the infusion tube 72 is too sharp and long, and it is easy to bend or break when punctured, affecting the use effect.
  • the bottom inclination angle of the infusion tube 72 can be 30°, 40°, 45°, 50°, etc.
  • a seal 10 is provided on the outer periphery of the infusion tube 72, which is used to seal the cavity 912 after puncture and fix the infusion tube 72.
  • the seal 10 is generally a truncated cone structure with a larger upper portion and a smaller lower portion, so as to perform surface sealing with the cavity 912 and ensure the fixing effect of the infusion tube 72.
  • the seal 10 can be made of rubber material, such as medical grade fluororubber.
  • the infusion tube 72 is accommodated in the extension part 911, and the seal 10 is in gap with the cavity 912 to reduce the resistance of the infusion tube 72 to move downward and puncture.
  • the spike structure 721 and part of the infusion tube 72 extend from the bottom of the cavity 912, and the seal 10 is in seal with the cavity 912 to prevent fluid leakage or contamination, and the seal 10 will also squeeze the infusion tube 72 to fix it, so that its position is stable, avoiding displacement or loosening, and ensuring the reliability of infusion.
  • the cavity 912 includes a straight section 9121 and a narrowing section 9122 arranged in sequence from top to bottom, with a smooth transition between the two.
  • the bottom and top of the seal 10 are respectively provided with a fifth protrusion 101 and a sixth protrusion 102.
  • the vertical cross-sections of the fifth protrusion 101 and the sixth protrusion 102 are arc-shaped, and the size of the fifth protrusion 101 is smaller than that of the sixth protrusion 102, so that the fifth protrusion 101 and the sixth protrusion 102 can both interfere with the narrowing section 9122 to form two tighter seals, thereby improving the sealing effect between the infusion tube 72 and the cavity 912.
  • the spike structure 721 is located in the narrowing section 9122, and the fifth and sixth protrusions 101 and 102 are respectively provided with a fifth protrusion 101 and a sixth protrusion 102.
  • the six protrusions 101 and 102 are all in clearance with the straight section 9121, so that the bottle cap 91 can accommodate the infusion tube 72 before being punctured, and the infusion tube 72 can move flexibly in the cavity 912.
  • the spike structure 721 is located outside the constricted section 9122, and the fifth and sixth protrusions 101 and 102 are both sealed with the constricted section 9122, thereby further enhancing the sealing effect on the cavity 912 and the fixing effect on the infusion tube 72.
  • the bottom of the cavity 912 is horizontally arranged to facilitate molding.
  • the bottom of the cavity 912 can also be tilted and its highest point can first contact the spike structure 721 to obtain a better puncturing effect.
  • the bottom thickness of the cavity 912 is not less than 0.04 mm. If the thickness is less than 0.04 mm, the structural strength is poor, and the bottom of the cavity 912 is easily completely destroyed and produces debris when punctured.
  • the bottom thickness of the cavity 912 is preferably between 0.06 mm and 0.15 mm.
  • the thickness can be 0.06 mm, 0.08 mm, 0.1 mm or 0.15 mm, etc., but try not to exceed 0.2 mm. Too thick a size will increase the difficulty of puncturing the infusion tube 72.
  • a connecting belt 913 connected to the extension portion 911 is provided at the bottom of the cavity 912.
  • the connecting belt 913 can fix it to the extension portion 911, thereby preventing it from falling off.
  • a pump unit 8 is provided in the infusion tube 72, and the pump unit 8 is constructed such that: the leakage amount does not exceed 200ml/min in the closed state, the ventilation amount is not less than 1000ml/min in the open state, and it is suitable for actuating the fluid under a pressure of at least 20bar, so as to ensure that sufficient fluid enters the fluid channel 661 in the upper liquid state, and in the spraying state, the circulation leakage is reduced as much as possible, thereby improving the dosage stability of the soft mist released by the nozzle 63 each time.
  • the pump unit 8 includes a valve cavity 81 and a valve core 82.
  • the valve cavity 81 can be integrally formed at the top of the infusion tube 72, and can move up and down in the fluid channel 661 of the flow guide member 66 along with the infusion tube 72, and cooperate with the valve core 82 movably arranged in the valve cavity 81 to achieve the flow stopping and flow passing functions.
  • a columnar chamber 64 adapted to the valve core 82 is provided in the valve cavity 81, and the clearance between the valve cavity 81 and the valve core 82 is matched, and the clearance between the two is about 0.06 mm to 0.2 mm, preferably 0.1 mm to 0.15 mm, so as to form a suitable fluid path between the infusion tube 72 and the fluid channel 661.
  • the bottom of the valve cavity 81 is provided with a mating surface 811 which gradually slopes downward from the outside to the inside.
  • the bottom of the valve core 82 is provided with a rounded surface 821.
  • the rounded surface 821 can contact with the mating surface 811 by its own weight to form a line seal or a surface seal, thereby preventing the backflow or leakage of the fluid during the liquid filling process, which may cause a decrease in the amount of soft mist released each time by the nozzle 63.
  • the mating surface 811 may be an inclined plane, and the angle between the inclined plane and the horizontal plane is The angle of the convex surface 262 is 20° to 45°, preferably 30° to 40°, so as to better contact with the fillet surface 821 at the bottom of the valve core 82 to form a surface seal, thereby ensuring the sealing effect.
  • the mating surface 811 can also be a convex surface 262, and the curvature radius of the convex surface 262 is 0.1mm to 0.2mm, preferably 0.14mm to 0.16mm, so that the mating surface 811 and the fillet surface 821 always maintain a linear seal, and the sealing performance is better.
  • an interference structure is provided between the mating surface 811 and the fillet surface 821, and the interference structure includes a fourth protrusion 83 provided on the mating surface 811 and an eighth groove 84 provided on the fillet surface 821.
  • the fourth protrusion 83 When the pump unit 8 is in a closed state, the fourth protrusion 83 will be inserted into the eighth groove 84 to seal with it, and the interference amount between the two is about 0.02mm to 0.2mm, thereby forming a new seal on one side of the original seal.
  • the double sealing design greatly improves the sealing and service life of the pump unit 8. After multiple tests, the pump unit 8 provided with the interference structure has a leakage of no more than 60ml/min in the closed state.
  • the interference structure may also include an eighth groove 84 provided on the mating surface 811 and a fourth protrusion 83 provided on the fillet surface 821 (not shown), and the principles are similar and will not be repeated here.
  • At least two guide portions 85 are evenly spaced circumferentially between the outer periphery of the valve core 82 and the inner wall of the valve cavity 81 to play a balanced guiding role, thereby preventing the valve core 82 from tilting or deviating in the valve cavity 81, and avoiding the poor contact between the fillet surface 821 and the first sealing surface 611 caused by the deviation of the valve core 82 during the switching process of the pump unit 8, thereby ensuring the sealing effect of the pump unit 8.
  • the number of the guide portions 85 can be 2 to 6, and more preferably 3 or 4, so as to minimize the impact on the ventilation volume of the pump unit 8 while maintaining the guiding balance.

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  • Health & Medical Sciences (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)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

La présente invention concerne un dispositif de brume douce, comprenant un boîtier supérieur et un corps rotatif principal. Le boîtier supérieur est relié de façon rotative au corps rotatif principal, un ensemble de comptage est disposé sur la paroi externe du corps rotatif principal, et l'ensemble de comptage comprend une vis reliée au corps rotatif principal et un bloc coulissant se déplaçant le long de la vis ; une première rainure est formée sur la paroi interne du boîtier supérieur, et la première rainure est configurée pour entraîner la tige de vis en rotation, entraînant ainsi le bloc coulissant à se déplacer pour obtenir une fonction de comptage.
PCT/CN2024/102828 2023-08-10 2024-07-01 Dispositif de brume douce Pending WO2025031062A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN202311003765.6A CN116920217B (zh) 2023-08-10 2023-08-10 一种刺破密封结构及雾化装置
CN202311003765.6 2023-08-10
CN202410723186.7 2024-06-05
CN202421274379.0U CN222955767U (zh) 2024-06-05 2024-06-05 一种喷嘴固持机构
CN202421274379.0 2024-06-05
CN202410723186.7A CN118340968A (zh) 2024-06-05 2024-06-05 一种喷射组件及雾化器
CN202421297561.8 2024-06-07
CN202421297561.8U CN222955768U (zh) 2024-06-07 2024-06-07 一种计数锁定装置及雾化器

Publications (1)

Publication Number Publication Date
WO2025031062A1 true WO2025031062A1 (fr) 2025-02-13

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ID=94533439

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/102828 Pending WO2025031062A1 (fr) 2023-08-10 2024-07-01 Dispositif de brume douce

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Country Link
WO (1) WO2025031062A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103272730A (zh) * 2005-08-24 2013-09-04 贝林格尔.英格海姆国际有限公司 雾化器
EP3498326A1 (fr) * 2017-12-18 2019-06-19 Boehringer Ingelheim International GmbH Compteur partiel pour nébulisateur, nébulisateur et système pourvu d'un nébulisateur et d'une station d'accueil
CN113967299A (zh) * 2020-07-22 2022-01-25 苏州天健云康信息科技有限公司 雾化装置以及用于雾化装置的计数模块
US20220080133A1 (en) * 2019-01-03 2022-03-17 Aptar Radolfzell Gmbh Nozzle unit, liquid dispenser comprising such a nozzle unit, and methods for producing such nozzle units
CN115068754A (zh) * 2022-07-19 2022-09-20 苏州新劢德医疗器械科技有限公司 一种喷雾器的计数自停结构
CN218607633U (zh) * 2022-07-20 2023-03-14 艾特美(苏州)医药科技有限公司 吸嘴组件及流体雾化递送装置
CN116036424A (zh) * 2021-10-28 2023-05-02 艾特申博(苏州)医药科技有限公司 一种匹配雾化器使用的药瓶

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103272730A (zh) * 2005-08-24 2013-09-04 贝林格尔.英格海姆国际有限公司 雾化器
EP3498326A1 (fr) * 2017-12-18 2019-06-19 Boehringer Ingelheim International GmbH Compteur partiel pour nébulisateur, nébulisateur et système pourvu d'un nébulisateur et d'une station d'accueil
US20220080133A1 (en) * 2019-01-03 2022-03-17 Aptar Radolfzell Gmbh Nozzle unit, liquid dispenser comprising such a nozzle unit, and methods for producing such nozzle units
CN113967299A (zh) * 2020-07-22 2022-01-25 苏州天健云康信息科技有限公司 雾化装置以及用于雾化装置的计数模块
CN116036424A (zh) * 2021-10-28 2023-05-02 艾特申博(苏州)医药科技有限公司 一种匹配雾化器使用的药瓶
CN115068754A (zh) * 2022-07-19 2022-09-20 苏州新劢德医疗器械科技有限公司 一种喷雾器的计数自停结构
CN218607633U (zh) * 2022-07-20 2023-03-14 艾特美(苏州)医药科技有限公司 吸嘴组件及流体雾化递送装置

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