CN115591067A - Automatic drug delivery device for asthma patients - Google Patents

Automatic drug delivery device for asthma patients Download PDF

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Publication number
CN115591067A
CN115591067A CN202211245065.3A CN202211245065A CN115591067A CN 115591067 A CN115591067 A CN 115591067A CN 202211245065 A CN202211245065 A CN 202211245065A CN 115591067 A CN115591067 A CN 115591067A
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CN
China
Prior art keywords
energy storage
patient
automatic
sealing cavity
medicine bottle
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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
CN202211245065.3A
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Chinese (zh)
Inventor
傅骏
桑凌峰
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.)
Zhejiang Youxin Intelligent Medical Technology Co ltd
Shanghai Chengyu Medical Technology Co ltd
Original Assignee
Zhejiang Youxin Intelligent Medical Technology Co ltd
Shanghai Chengyu Medical Technology Co ltd
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Publication date
Application filed by Zhejiang Youxin Intelligent Medical Technology Co ltd, Shanghai Chengyu Medical Technology Co ltd filed Critical Zhejiang Youxin Intelligent Medical Technology Co ltd
Priority to CN202211245065.3A priority Critical patent/CN115591067A/en
Publication of CN115591067A publication Critical patent/CN115591067A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0091—Inhalators mechanically breath-triggered
    • 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
    • A61M15/00—Inhalators
    • A61M15/0001—Details of inhalators; Constructional features thereof
    • A61M15/0021—Mouthpieces 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
    • A61M15/00—Inhalators
    • A61M15/0086—Inhalation chambers
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/27—General characteristics of the apparatus preventing use
    • A61M2205/276—General characteristics of the apparatus preventing use preventing unwanted use
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/82—Internal energy supply devices
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0625—Mouth

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an automatic drug delivery device for asthma patients. This automatic device of dosing does not need the patient to press the action to the device when inhaling the action, only need press the energy storage button in advance, make automatic press device energy storage, the patient inhales the action and will inhale the cavity, go up the sealed chamber, the air suction in the sealed chamber down, utilize the inside and outside negative pressure difference of cavity, under gasbag, drive mechanism and automatic press device's combined action, realize that the action of inhaling of patient and the action of pressing to the internal medicine bottle go on simultaneously, only rely on patient's action of inhaling, do not need the patient to press the medicine bottle, realize the automation of pressing to the internal medicine bottle, the effectual patient of having avoided pressing to the internal medicine bottle with the patient inhale the action asynchronous and make the unable medicine of inhaling of patient or inhale the unsatisfied condition of medicine dose, the degree of danger of asthma patient when asthma attack has been reduced to a great extent, patient's life safety has been ensured.

Description

Automatic drug delivery device for asthma patients
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an automatic drug delivery device for asthma patients.
Background
Asthma is a common respiratory disease, and is clinically manifested by symptoms such as recurrent wheezing, shortness of breath, chest distress or cough, and the like, and the emergency condition often attacks or aggravates at night and in the early morning, and the patient needs to inhale the medicament by himself to relieve the emergency condition, so that the household administration medicine bottle is one of indispensable articles for the asthma patient.
When asthma patient uses the inhalation medicament, need the patient to press the medicine bottle of dosing in the action of inhaling, only the patient inhales and goes on simultaneously with pressing, just can be accurate with the medicament, satisfy the respiratory track that enters into the human body of requirement, and in the use of reality, because of the patient is under emergency, the pressing device that can not be accurate or do not have strength to press the device of dosing, the patient inhales the action and presses the device of dosing and can't reach the synchronization, make the medicament unable timely, accurate entering into in the respiratory track of human body, put the patient in the dangerous condition, can injure life seriously.
Disclosure of Invention
The invention aims to overcome the defects that the inhalation action of a patient and the pressing of a medicine bottle can not be ensured to be carried out simultaneously and the life safety of the patient is endangered in the prior art, and provides a medicine bottle for automatically administering medicine to an asthma patient, which can realize the simultaneous inhalation and pressing only depending on the inhalation action of the patient, and a using method thereof.
The technical scheme adopted by the invention for solving the technical problem is as follows: an automatic drug delivery device for asthma patients comprises a lower end shell and an upper end shell which is hermetically arranged with the lower end shell; the upper end shell and the lower end shell respectively form an upper sealing cavity and a lower sealing cavity; the lower end shell is provided with a medicine suction nozzle for sucking medicine by a patient and an outer medicine bottle which penetrates through the upper sealing cavity and the lower sealing cavity and is arranged inside the upper sealing cavity and the lower sealing cavity, and the outer medicine bottle is communicated with a gas circuit of the medicine suction nozzle; an inhalation cavity is arranged in the outer medicine bottle, and an inner medicine bottle for loading medicine is arranged in the inhalation cavity;
the suction cavity is communicated with the upper sealing cavity through an air passage; the lower sealing cavity is communicated with the upper sealing cavity through a gas circuit;
an automatic pressing device for pressing the inner medicine bottle is arranged in the upper sealing cavity, and an air bag is arranged on the lower sealing cavity; a transmission mechanism for controlling the automatic pressing device to press the inner medicine bottle is arranged between the air bag and the automatic pressing device;
when a patient holds the medicine suction nozzle to suck, the automatic pressing device automatically presses the inner medicine bottle through the air bag and the transmission of the transmission mechanism.
Furthermore, the automatic pressing device comprises a gland sleeved at the bottom of the inner medicine bottle, a groove formed in the gland and used for arranging a pressing spring, and an energy storage plate symmetrically and rotatably mounted on the support frame in the upper sealing cavity; one end of the energy storage plate is mounted at a position matched with the transmission mechanism, and the other end of the energy storage plate is abutted against the lower end face of the gland; the pressing spring is arranged between the groove and the inner wall of the upper end shell.
Furthermore, the transmission mechanism comprises an energy storage assembly and a connecting rod crank transmission assembly which are arranged on a support frame which penetrates through the upper sealing cavity and the lower sealing cavity and is fixedly arranged on the bottom plate of the lower sealing cavity;
the energy storage component comprises an energy storage button which is arranged on the upper end shell and exposed out of the outer side of the upper end shell, and a return spring for automatic return is arranged on the energy storage button;
the connecting rod crank transmission assembly comprises a connecting rod, a crank and a locking plate, wherein one end of the connecting rod is fixedly arranged on the gland, the crank is fixedly connected with the other end of the connecting rod, and the locking plate is used for being matched with the crank;
the crank and the locking plate are both rotatably mounted on the support frame and are positioned in the lower sealing cavity; a locking disc abutted against a valve core of the air bag is arranged at one end, far away from the support frame, of the locking plate in a rotating installation mode, and an arc-shaped locking block used for locking the crank is arranged at one end, far away from the support frame, of the locking plate in a rotating installation mode; the end face of the crank, which is close to the connecting rod, is an arc-shaped end face which is matched with the arc-shaped locking block.
Further, when the arc-shaped locking block and the arc-shaped end face are locked, the axis of the crank and the axis of the connecting rod are not on the same straight line.
Further, when the energy storage button is in a reset state, the energy storage button is in sealing connection with the upper end shell;
and when the energy storage button is in a pressed state, a gap for air to enter is formed between the energy storage button and the upper end shell.
Furthermore, a medicine spraying opening facing the outlet of the medicine suction nozzle is formed in the suction cavity, and the medicine spraying opening is communicated with the medicine path of the inner medicine bottle.
The energy storage self-locking device comprises ratchet teeth arranged on the edge of the crank and ratchet claws arranged on the support frame and connected with the ratchet teeth in a matching manner; and a shifting lever for shifting the ratchet pawl and the ratchet gear apart is rotatably arranged on the support frame corresponding to the lock plate.
Further, when the energy storage button is in a pressed state, the lower end face of the energy storage button is abutted to the energy storage plate; when the energy storage button is in a reset state, the energy storage plate is separated from the energy storage button.
Furthermore, a fixed shaft is arranged at one end of the energy storage plate, which is positioned below the energy storage button, and at least one bearing is sleeved on the fixed shaft; when the energy storage button is in a pressed state, the energy storage button is abutted to the energy storage plate through the bearing.
Furthermore, the driving lever and the ratchet pawl are automatically reset through the spring column and the spring plate.
The automatic drug delivery device for the asthma patient has the advantages that:
1. this automatic device of dosing does not need the patient to press the action to the device when inhaling the action, only need press the energy storage button in advance, make automatic press device energy storage, the patient inhales the action and will inhale the cavity, go up the sealed chamber, the air suction in the sealed chamber down, utilize the inside and outside negative pressure difference of cavity, under gasbag, drive mechanism and automatic press device's combined action, realize that the action of inhaling of patient and the action of pressing to the internal medicine bottle go on simultaneously, only rely on patient's action of inhaling, need not press the medicine bottle when the patient inhales the action, realize the automation of pressing to the medicine bottle, the effectual patient of having avoided pressing to the internal medicine bottle with the patient inhale the action asynchronous and make the unable medicine of inhaling of patient or inhale the unsatisfied condition of medicine dose, the dangerous degree of asthma patient when asthma attack has been reduced to a great extent, patient's life safety has been ensured.
2. The automatic pressing device adopts the energy storage plate and the energy storage button to store energy for the automatic pressing device, and the transmission mechanism is provided with the energy storage self-locking device and the locking plate, so that the automatic pressing device can ensure that the automatic pressing device does not press the inner medicine bottle when a patient does not inhale, the stability of the automatic pressing device is ensured, and the waste of the medicine in the inner medicine bottle is avoided.
3. The automatic drug delivery device can set the automatic pressing device to be in an energy storage state in advance, and when the internal drug bottle cannot be pressed under the emergency condition of a patient, the patient can timely and accurately spray the drug to the respiratory tract only by taking an inhalation action, so that the safety of the patient is effectively ensured.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a perspective view of an automatic drug delivery device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an automatic drug delivery device according to an embodiment of the present invention;
FIG. 3 is a partial exploded view of an automatic medication delivery device according to an embodiment of the present invention;
FIG. 4 is an exploded view of an energy storage assembly according to an embodiment of the invention
FIG. 5 is a schematic view of the structure of the suction chamber portion of an embodiment of the present invention;
FIG. 6 is a schematic view of the transmission mechanism in an initial state according to the embodiment of the present invention;
FIG. 7 is a schematic diagram of the transmission mechanism according to the embodiment of the present invention in the energy storage state;
FIG. 8 is a schematic structural view of the embodiment of the present invention in a locked state in which the lock plate is engaged with the crank;
FIG. 9 is an installation view of the energy storage self-locking device and the crank of the embodiment of the invention;
FIG. 10 is a schematic view of the engagement of the lock plate and crank of an embodiment of the present invention;
FIG. 11 is a schematic structural view of a lock plate of an embodiment of the present invention;
fig. 12 is a schematic structural view of a crank according to an embodiment of the present invention.
In the figure, the medicine bottle cap comprises a base 1, a base 2, a lower end shell 3, an upper end shell 4, an upper sealing cavity 5, a lower sealing cavity 6, a medicine suction nozzle 7, an outer medicine bottle 8, an inner medicine bottle 9, a suction cavity 10, an air bag 11, a valve core 12, a support frame 13, a medicine spraying opening 100, an automatic pressing device 101, a pressing cover 102, a groove 103, an energy storage plate 104, a pressing spring 105, a bearing 200, a transmission mechanism 201, an energy storage assembly 2011, an energy storage button 2012, a reset spring 2013, a reset shaft 202, a connecting rod crank transmission assembly 2022, a connecting rod 2023, a crank 2024, a locking plate 2025, a locking disc 2026, an arc-shaped locking block 2027, an arc-shaped end face 300, an energy storage self-locking device 301, ratchet teeth 302, a ratchet claw, 303 and a driving lever.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1 to 12, in an embodiment of an automatic drug delivery device for an asthmatic patient according to the present invention, an automatic drug delivery device for an asthmatic patient comprises a base 1, a lower case 2 slidably mounted on the base 1, and an upper case 3 hermetically sealed with the lower case 2; the upper end shell 3 and the lower end shell 2 respectively form an upper sealing cavity 4 and a lower sealing cavity 5; the lower end shell 2 is provided with a medicine suction nozzle 6 for a patient to suck medicine, and an outer medicine bottle 7 which penetrates through the upper sealing cavity 4 and the lower sealing cavity 5 and is arranged inside the upper sealing cavity 4 and the lower sealing cavity 5, and the outer medicine bottle 7 is communicated with the air passage of the medicine suction nozzle 6; an inhalation cavity 9 is arranged in the outer medicine bottle 7, and an inner medicine bottle 8 for loading medicine is arranged in the inhalation cavity 9. Wherein, the suction cavity 9 is communicated with the upper sealing cavity 4 through a gas circuit; the lower sealing cavity 5 is communicated with the upper sealing cavity 4 through a gas circuit.
An automatic pressing device 100 for pressing the inner medicine bottle 8 is arranged in the upper sealing cavity 4, and an air bag 10 is arranged on the lower sealing cavity 5; a transmission mechanism 200 for controlling the automatic pressing device 100 to press the inner medicine bottle 8 is arranged between the air bag 10 and the automatic pressing device 100; when the patient holds the medicine suction nozzle 6 for inhalation, the automatic pressing device 100 automatically presses the inner medicine bottle 8 through the deformation of the air bag 10 and the transmission of the transmission mechanism 200.
It should be noted that, when the automatic drug delivery device is used, the air in the inhalation cavity 9, the upper sealed cavity 4 and the lower sealed cavity 5 is inhaled by the inhalation action of the patient, and the inhalation action of the patient and the pressing action of the medicine bottle 8 are simultaneously performed under the combined action of the air bag 10, the transmission mechanism 200 and the automatic pressing device 100 by utilizing the negative pressure difference between the inside and the outside of the cavity, so that the inhalation action of the patient and the pressing action of the medicine bottle 8 are simultaneously performed, the device only depends on the inhalation action of the patient, the patient does not need to press the medicine bottle, the automation of pressing the medicine bottle 8 is realized, the situation that the medicine cannot be inhaled by the patient or the medicine dose cannot meet the requirement due to the asynchronization of the pressing of the medicine bottle 8 and the inhalation action of the patient is effectively avoided, the risk degree of the asthma patient during the asthma attack is greatly reduced, and the life safety of the patient is ensured.
Energy storage subassembly 201 is including installing on upper end casing 3 and exposing in the energy storage button 2011 in the upper end casing 3 outside, install the reset spring 2012 who is used for automatic re-setting on the energy storage button 2011, wherein, reset spring 2012 overlaps and establishes on the axle 2013 that resets, at upper end casing 3, under lower extreme casing 2 and the sealing washer effect between the two, reset spring 2012 is the shrink and is expanded the motion on the axle 2013 that resets, realize when energy storage button 2011 is in the state that resets, energy storage button 2011 and upper end casing 3 sealing connection. When the energy storage button 2011 is in a pressed state, a gap for air to enter is formed between the energy storage button 2011 and the upper end shell 3, so that air outside the upper end shell 3 can enter the upper sealing cavity 4, the lower sealing cavity (5) and the suction cavity 9.
The automatic pressing device 100 comprises a gland 101 sleeved at the bottom of the inner medicine bottle 8, a groove 102 formed on the gland 101 and used for arranging a pressing spring 104, and an energy storage plate 103 symmetrically and rotatably mounted on the support frame 12 in the upper sealing cavity 4; one end of the energy storage plate 103 is located in the extending direction of the pressing direction of the energy storage button 2011 in the transmission mechanism, and the other end thereof abuts against the lower end of the pressing direction of the gland 101; when the energy storage button 2011 is in a pressed state, the lower end of the energy storage button 2011 abuts against the energy storage plate 103, and when the energy storage button 2011 is in a reset state, the energy storage plate 103 is separated from the energy storage button 2011.
The transmission mechanism 200 in the embodiment of the invention comprises an energy storage component 201 for storing energy for the automatic pressing device 100 and a connecting rod crank transmission component 202 which is matched and connected with the air bag 10 and is used for enabling the stored energy automatic pressing device 100 to release energy and realize the pressing effect on the medicine bottle 8; the connecting rod crank transmission assembly 202 comprises a connecting rod 2022 with one end fixedly mounted on the gland 101, a crank 2023 fixedly connected with the other end of the connecting rod 2022, and a locking plate 2024 matched with the crank 2023. As shown in fig. 2 to 8, the crank 2023 and the lock disk 2025 are both rotatably mounted on the support frame 12 and located in the lower sealed chamber 5; a lock disc 2025 abutted against a valve core 11 of the air bag 10 is arranged at one end, far away from the support frame 12, of the lock plate 2024 in a rotating mode, and an arc-shaped lock block 2026 used for locking a crank 2023 is arranged at one end, far away from the support frame 12, of the lock plate 2024 in a rotating mode; the end surface of the crank 2023 close to the connecting rod 2022 is an arc end surface 2027 which is installed in match with the arc locking block 2026.
One end of the energy storage plate 103, which is positioned below the energy storage button 2011, is provided with a fixed shaft, and at least one bearing 105 is sleeved on the fixed shaft; when the charge button 2011 is pressed, the charge button 2011 abuts against the charge plate 103 via the bearing 105. Bearing 105 is two in this embodiment, and the one end that energy storage board 103 is close to energy storage button 2011 is provided with fixed axle and bearing 105 and energy storage button 2011 and rotates the contact, when preventing to press energy storage button 2011, and the power between energy storage board 103 and the energy storage button 2011 is too big, causes wearing and tearing or harm between them. The automatic drug delivery device can set the automatic pressing device 100 to be in an energy storage state in advance, and when a patient is in an emergency and cannot press the drug bottle 8, the patient can timely and accurately spray the drug into the respiratory tract by only inhaling the drug, so that the safety of the patient is effectively ensured, and the timely and accurate injection of the drug into the respiratory tract is a guarantee for the life of the patient.
As shown in fig. 2, the automatic drug administration device in this embodiment further includes an energy storage self-locking device 300, when a part of the energy storage button 2011 is pressed, the energy storage button 2011 is released, the energy storage button 2011 automatically resets upward under the action of the return spring 2012, so as to prevent the automatic pressing device 100 from releasing energy when no patient inhales, and thus, the internal medicine bottle 8 is pressed, which causes waste of medicine.
Specifically, as shown in fig. 8, the energy-accumulating self-locking device 300 comprises ratchet teeth 301 formed on the edge of a crank 2023, and a ratchet claw 302 mounted on the support frame 12 and connected with the ratchet teeth 301 in a matching manner; a lever 303 for moving the ratchet pawl 302 and the ratchet gear apart is rotatably attached to the support frame 12 corresponding to the lock plate 2024. The ratchet pawl 302 and the shift lever 303 are mounted on the support frame 12 through a spring plate and a spring post, and when the energy of the automatic pressing device 100 is released, the ratchet pawl 302 automatically resets under the action of the spring plate and the spring post to perform the next operation.
When the arc-shaped locking block 2026 and the arc-shaped end face 2027 on the crank 2023 are in a locked state, referring to fig. 9, the axis of the crank 2023 and the axis of the connecting rod 2022 are not on the same straight line, and the axis of the crank 2023 and the axis of the connecting rod 2022 have a small offset angle a, so that the crank 2023 and the connecting rod 2022 are prevented from being locked, the automatic pressing device 100 is ensured to normally release energy, and the inner medicine bottle 8 is automatically pressed.
As shown in fig. 1 to 12, the valve core 11 of the air bag 10 pushes the lock disk 2025 abutted against it to rotate along the support frame 12, the lock plate 2024 rotates to drive the crank 2023 matched with the arc-shaped lock block 2026 on the lock plate 2024 to rotate by using the friction force between the arc-shaped lock block 2026 and the arc-shaped end face 2027 on the crank 2023, the crank 2023 drives the end of the connecting rod 2022 fixedly mounted with the crank 2023 to rotate around the mounting point of the crank 2023 rotatably mounted on the support frame 12, so that the gland 101 fixedly mounted at the other end of the connecting rod 2022 moves up and down, it should be noted that when the pressure in the lower seal cavity 5 is the same as the external pressure, the valve core 11 of the air bag 10 automatically retracts, and the lock plate 2024 resets by using the torsion spring. When the energy storage button 2011 is in a pressed state, a gap is formed between the energy storage button 2011 and the upper end shell 3, air can enter the upper sealing cavity 4, the lower sealing cavity (5) and the suction cavity 9, the air pressure in the lower sealing cavity 5 is the same as the air pressure outside the lower end shell 2, and the air bag 10 is reset to wait for the next action.
A shift lever 303 for shifting the ratchet claw from the ratchet tooth 301 on the crank 2023 is rotatably mounted on the support frame 12 at a position corresponding to the lock plate 2024, specifically referring to fig. 8, when the valve element 11 of the air bag 10 pushes the lock plate 2025 of the lock plate 2024 to move in a direction close to the shift lever 303, the plate body of the lock plate 2024 contacts with one end of the shift lever 303 and pushes the shift lever 303 to rotate along the mounting point of the shift lever 303 and the support frame 12, so that the other end of the shift lever 303 pushes the ratchet claw 302 to disengage from the ratchet tooth 301 on the crank 2023, and the energy storage self-locking device 300 can perform a self-locking function on the crank 2023 and the connecting rod 2022 of the crank 2023 without affecting the normal movement of the connecting rod 2022 of the crank 2023.
As shown in fig. 5, in the inhalation chamber 9 of the present embodiment, a medicine spraying port 13 is provided toward the outlet of the medicine inhalation nozzle 6, the medicine spraying port 13 communicates with the entire medicine path of the inner medicine bottle 8, and when the automatic pressing device 100 presses the inner medicine bottle 8, the medicine in the inner medicine bottle 8 is sprayed from the medicine spraying port 13 and enters the respiratory tract of the patient.
The working principle is as follows:
the initial state of the automatic drug delivery device is a state that the automatic pressing device 100 is in a state of releasing energy, at this time, the arc-shaped end face 2027 of the crank 2023 is located at a position close to the air bag 10, and the locking plate 2024 is in a state of naturally resetting, as shown in fig. 2 and 4, when a patient uses the automatic drug delivery device, only a small force is needed to press the energy storage button 2011, the energy storage button 2011 moves downwards, the energy storage plate 103 drives the gland 101 of the automatic pressing device 100 to move upwards, so that the pressing spring 104 is compressed between the gland 101 and the upper end housing 3 to store energy for the automatic pressing device 100, and after the energy storage button 2011 is pressed, the energy storage button 2011 resets to keep a sealing state with the upper end housing 3 under the action of the reset spring 2012.
When the automatic pressing device 100 is in the energy storage state, the arc-shaped end surface 2027 of the crank 2023 and the arc-shaped locking block 2026 of the locking plate 2024 are in the locked state, and the ratchet pawl 302 and the ratchet teeth 301 on the crank 2023 are in the matched and abutted state.
The medicine is sucked by the medicine sucking mouth 6 of the patient, because the upper sucking cavity, the upper sealing cavity 4 and the lower sealing cavity 5 are communicated with the air passages, and no air flows exist between the three sealing cavities and the outer side of the shell, when the patient inhales, the air in the three sealing cavities is sucked into the patient, at the moment, the air pressure in the lower sealing cavity 5 is smaller than the air pressure in the outer side of the lower end shell 2, the valve core 11 of the air bag 10 moves towards the locking disc 2025 close to the locking plate 2024 by utilizing the internal and external negative pressure difference, the valve core 11 pushes the locking disc 2025 to rotate, the locking disc 2025 is separated from the crank 2023, when the locking plate 2024 rotates for a certain angle, the lock body of the locking plate 2024 pushes the shift lever 303 to rotate, the shift lever 303 rotates, the fluctuating ratchet claw 302 is separated from the crank 2023, and the pressing spring 104 releases energy in the non-resistance state to press the inner medicine bottle 8, so that the medicine in the inner medicine bottle 8 is sprayed into the respiratory tract of the patient.
According to the automatic administration device, a patient does not need to press the device when inhaling, only the energy storage button 2011 needs to be pressed in advance, the automatic pressing device 100 is enabled to store energy, air sucked into the cavity 9, the upper sealed cavity 4 and the lower sealed cavity 5 is sucked by using the inhaling action of the patient, negative pressure difference inside and outside the cavity is used, under the combined action of the air bag 10, the crank 2023 and the connecting rod 2022 assembly and the automatic pressing device 100, the inhaling action of the patient and the pressing action on the medicine bottle 8 are simultaneously carried out, only the inhaling action of the patient is depended on, the medicine bottle does not need to be pressed by large force, the automation of pressing the medicine bottle 8 is realized, the condition that the medicine bottle 8 is pressed and the inhaling action of the patient is asynchronous and the medicine cannot be inhaled or cannot be inhaled by the patient is effectively avoided, the danger degree of the asthma patient during asthma attack is reduced, and the life safety of the patient is guaranteed.
It should be understood that the specific embodiments described above are only for illustrating the present invention and are not to be construed as limiting the present invention. Obvious variations or modifications which are within the spirit of the invention are possible within the scope of the invention.

Claims (10)

1. An automatic drug delivery device for an asthmatic patient, characterized by: comprises a lower end shell (2) and an upper end shell (3) which is hermetically arranged with the lower end shell (2); the upper end shell (3) and the lower end shell (2) form an upper sealing cavity (4) and a lower sealing cavity (5) respectively; the lower end shell (2) is provided with a medicine suction nozzle (6) for a patient to suck medicine, and an outer medicine bottle (7) which penetrates through the upper sealing cavity (4) and the lower sealing cavity (5) and is arranged inside the upper sealing cavity (4) and the lower sealing cavity (5), and the outer medicine bottle (7) is communicated with the air passage of the medicine suction nozzle (6); a suction cavity (9) is arranged in the outer medicine bottle (7), and an inner medicine bottle (8) for loading medicine is arranged in the suction cavity (9);
the suction cavity (9) is communicated with the upper sealing cavity (4) through an air path; the lower sealing cavity (5) is communicated with the upper sealing cavity (4) through an air path;
an automatic pressing device (100) for pressing the inner medicine bottle (8) is arranged in the upper sealing cavity (4), and an air bag (10) is arranged on the lower sealing cavity (5); a transmission mechanism (200) for controlling the automatic pressing device (100) to press the inner medicine bottle (8) is arranged between the air bag (10) and the automatic pressing device (100);
when a patient holds the medicine suction nozzle (6) for inhalation, the automatic pressing device (100) automatically presses the inner medicine bottle (8) through the transmission of the air bag (10) and the transmission mechanism (200).
2. An automatic drug delivery device for an asthmatic patient according to claim 1, wherein: the automatic pressing device (100) comprises a gland (101) sleeved at the bottom of the inner medicine bottle (8), a groove (102) formed in the gland (101) and used for arranging a pressing spring (104), and an energy storage plate (103) symmetrically and rotatably mounted on the support frame (12) in the upper sealing cavity (4); one end of the energy storage plate (103) is mounted at a matching position with the transmission mechanism (200), and the other end of the energy storage plate is abutted against the lower end face of the gland (101); the pressing spring (104) is arranged between the groove (102) and the inner wall of the upper end shell (3).
3. An automatic drug delivery device according to claim 2, wherein: the transmission mechanism (200) comprises an energy storage assembly (201) and a connecting rod crank transmission assembly (202), wherein the energy storage assembly (201) and the connecting rod crank transmission assembly (202) are arranged on a support frame (12) which penetrates through the upper sealing cavity (4) and the lower sealing cavity (5) and is fixedly arranged on a bottom plate of the lower sealing cavity (5);
the energy storage assembly (201) comprises an energy storage button (2011) which is installed on the upper end shell (3) and exposed out of the upper end shell (3), and a return spring (2012) for automatic return is installed on the energy storage button (2011);
the connecting rod crank transmission assembly (202) comprises a connecting rod (2022) with one end fixedly mounted on the gland (101), a crank (2023) fixedly connected with the other end of the connecting rod (2022) and a locking plate (2024) matched with the crank (2023);
the crank (2023) and the lock plate (2024) are both rotatably mounted on the support frame (12) and located in the lower sealed cavity (5); a lock disc (2025) abutted against a valve core (11) of the air bag (10) is arranged at one end, far away from the support frame (12), of the lock plate (2024) in a rotary mounting manner, and an arc-shaped lock block (2026) used for locking the crank (2023) is arranged at one end, far away from the support frame (12), of the lock plate (2024); the end face of the crank (2023) close to the connecting rod (2022) is an arc-shaped end face (2027) which is installed in a matching way with the arc-shaped locking block (2026).
4. An automatic drug delivery device according to claim 3, wherein: when the arc-shaped locking block (2026) and the arc-shaped end surface (2027) are locked, the axis of the crank (2023) and the axis of the connecting rod (2022) are not on the same straight line.
5. An automatic drug delivery device according to claim 3, wherein: when the energy storage button (2011) is in a reset state, the energy storage button (2011) is in sealing connection with the upper end shell (3);
when energy storage button (2011) is in a pressing state, a gap for air to enter is formed between energy storage button (2011) and upper end shell (3).
6. An automatic drug delivery device according to claim 1, wherein: a medicine spraying opening (13) facing the outlet of the medicine suction nozzle (6) is arranged in the suction cavity (9), and the medicine spraying opening (13) is communicated with the medicine path of the inner medicine bottle (8).
7. An automatic drug delivery device according to claim 3, wherein: the energy-storage self-locking device (300) comprises ratchet teeth (301) arranged on the edge of the crank (2023) and ratchet claws (302) which are arranged on the support frame (12) and are connected with the ratchet teeth (301) in a matching manner; a shift lever (303) for shifting the ratchet pawl (302) and the ratchet gear apart is rotatably mounted on the support frame (12) corresponding to the lock plate (2024).
8. An automatic drug delivery device for an asthmatic patient according to claim 3, wherein: when the energy storage button (2011) is in a pressed state, the lower end face of the energy storage button (2011) is abutted against the energy storage plate (103); when the energy storage button (2011) is in a reset state, the energy storage plate (103) is separated from the energy storage button (2011).
9. An automatic drug delivery device according to claim 8, wherein: a fixed shaft is arranged at one end, located below the energy storage button (2011), of the energy storage plate (103), and at least one bearing (105) is sleeved on the fixed shaft; when the energy storage button (2011) is in a pressing state, the energy storage button (2011) is abutted to the energy storage plate (103) through the bearing (105).
10. An automatic drug delivery device according to claim 7 for an asthmatic patient, wherein: the shifting rod (303) and the ratchet pawl (302) are automatically reset through a spring column and a spring plate.
CN202211245065.3A 2022-10-12 2022-10-12 Automatic drug delivery device for asthma patients Pending CN115591067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211245065.3A CN115591067A (en) 2022-10-12 2022-10-12 Automatic drug delivery device for asthma patients

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211245065.3A CN115591067A (en) 2022-10-12 2022-10-12 Automatic drug delivery device for asthma patients

Publications (1)

Publication Number Publication Date
CN115591067A true CN115591067A (en) 2023-01-13

Family

ID=84846636

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211245065.3A Pending CN115591067A (en) 2022-10-12 2022-10-12 Automatic drug delivery device for asthma patients

Country Status (1)

Country Link
CN (1) CN115591067A (en)

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