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CN-114470448-B - Mechanical counting inhalation aerosol drug feeder

CN114470448BCN 114470448 BCN114470448 BCN 114470448BCN-114470448-B

Abstract

The invention discloses a mechanical counting inhalation aerosol drug feeder, which comprises a driver, wherein one end of the driver is provided with an upward opening, the other end of the driver is provided with a nozzle, and the opening and the nozzle have a certain included angle. A canister storing a medicinal aerosol is inserted into the driver from the opening, and a sealing valve provided at one end of the canister is fixed in a receptacle of the driver at an end near the spout. The medicine storage tank is nested with a circular digital wheel. The opening side is provided with fixed lid, firmly overlaps on the medicine storage jar through the sleeve in the fixed lid, the fixed lid embeds has disc ten digit number wheels. The front panel of the driver is provided with a number display window, and the number wheel can be driven to rotate to achieve the counting function by pressing the medicine storage tank to take medicine.

Inventors

  • SHI LEI
  • XU YUN

Assignees

  • 亿索智能科技（上海）有限公司

Dates

Publication Date
20260505
Application Date
20201027

Claims (7)

  1. 1. A mechanical counting inhalation aerosol drug feeder comprises a driver, wherein one end of the driver is provided with an upward opening, the other end of the driver is provided with a nozzle, a certain included angle is formed between the opening and the nozzle, a drug storage tank for storing drug aerosol is inserted into the driver from the opening, a sealing valve arranged at one end of the drug storage tank is fixed inside one end of the driver, which is close to the nozzle, annular unit digital wheels are nested on the drug storage tank, a fixed cover is arranged at the side of the opening, disc-shaped ten-digit wheels are firmly sleeved on the drug storage tank through a sleeve in the fixed cover, a display window is arranged on a front panel of the driver, the digital wheels can be driven to rotate to achieve the counting function by pressing the drug storage tank, two sets of digits 0-9 are arranged at the outer edge of the annular unit digital wheels along the circumferential direction, the distance between each adjacent digit is the same, two bosses perpendicular to the top surface of the annular unit digital wheels are arranged at the digital wheels, the ten-digit wheels are fixedly sleeved on the drug storage tank through sleeves in the fixed cover, the position of the fixed cover, the ten-digit wheels are arranged at the positions of the opposite sides of the corresponding disc-shaped digital wheels, and the two bosses are arranged at the positions of the same angle, and the two bosses are arranged at the positions of the corresponding to the disc-shaped round-shaped digital wheels, and can rotate to the corresponding angle to the ten digits are arranged at the positions of the round-shaped boss.
  2. 2. The mechanical counting aerosol inhaler of claim 1, wherein the canister has portions of different outer diameters for providing rotational support for the single digit wheel, the single digit wheel being nested on the canister for rotation about the axis of the canister.
  3. 3. The mechanical counting inhalation aerosol dispenser according to claim 1, wherein a fixing cover is nested at one end of the medicine storage tank, two fixing holes are formed in the fixing cover for fixing the rotating shaft of the tens wheel, and the tens wheel can rotate along the axis formed by the two fixing holes.
  4. 4. A mechanical counter inhalation aerosol dispenser according to claim 3 in which the single digit wheel is rotatable along the axis of the canister by means of a space defined by the nesting of the fixed cover and the canister.
  5. 5. The mechanical counting aerosol dispenser according to claim 1, wherein two groups of driven dials are arranged on the outer surface of the ring of the single digit wheel along the axis of the ring, each group of driven dials is uniformly arranged along the circumferential direction, the distance between adjacent driven dials of each group of driven dials is equal to the distance between adjacent digits on the single digit wheel, the two groups of driven dials are arranged in a staggered manner, each driven dial has an inclination angle, the inclination angles of the two groups of driven dials are opposite, driving dials are arranged on the inner side wall of the driver, the driving dials have symmetrically arranged inclined side surfaces along the axis direction of the single digit wheel, the inclined side surfaces are gradually close along the rotation direction of the single digit wheel, the inclined side surfaces can be selectively engaged with the driven dials on the corresponding side, when the medicine storage tank moves along the axis direction, the driving dials on the driver can move relatively to the driven dials on the single digit wheel through the inclined side surfaces, so that the single digit wheel is pushed to rotate along the axial direction, and each time the medicine storage tank pushes the single digit wheel to rotate.
  6. 6. The mechanical counting inhalation aerosol dispenser according to claim 1, wherein a number display window is provided on the front panel of the driver, and the combined number of the tens number wheel and the units number wheel located at the position of the number display window can be read through the number display window.
  7. 7. The mechanical counting inhalation aerosol dispenser according to claim 1, wherein the fixed cover is provided with a pointed boss, the back side of the tens wheel is provided with a groove, and the pointed boss is matched with the groove, so that the tens wheel cannot freely rotate when no driving force is applied.

Description

Mechanical counting inhalation aerosol drug feeder Technical Field The invention relates to an aerosol dispenser, in particular to a mechanical counting inhalation aerosol dispenser. Background With the increasing severity of air pollution, patients suffering from respiratory diseases in China and abroad are increasingly growing, and respiratory system medicines are also gradually introduced into the fields of medicine enterprises, doctors and patients. Asthma (Asthma), chronic obstructive pulmonary disease (ChornicObstractivePlumonary Disease, COPD) are two of the respiratory diseases most severely affected for patients, and world health organization statistics in 2013 show that respiratory diseases have risen to the third highest mortality, with mortality as high as 14.09%. However, with the development of new technologies in pulmonary inhalation administration, a great number of patients prefer to treat pulmonary diseases and bronchial diseases by inhalation administration. More recently, inhaled administration from metered dose aerosol inhalers (MDI) has become the primary route of choice for drugs involved in the treatment of respiratory diseases. MDI type inhalers typically include an aerosol canister container, a metered dose dispensing valve, and an inhalation actuator. The inhalation driver typically comprises a nozzle block, an interface for a dosage-dispensing valve and a user port. A metered dose dispensing valve is inserted into the actuator with the valve stem engaged with the nozzle block of the actuator. In use, the patient places their lips around the user port and presses against the bottom of the aerosol container, causing the container to move relative to the valve stem, thereby ejecting a dose of medicament through the nozzle block orifice. In the prior art, some dose indicators or counters are designed to require electronics that increase cost, deter users from washing the device, may have battery life issues, and in the case of dose counters their use may be difficult to obtain regulatory approval. Furthermore, many of these dose indicators are complex, requiring a large number of small mechanical parts, which results in high costs, assembly difficulties, and the need for complex dimensional tolerances. In some cases, it is desirable to redesign the dose indicator to a larger, more bulky and more cumbersome shape for the standard shape and size of a metered dose aerosol inhaler. In addition, the character size and definition of the display of such devices may be poor, and difficult for a user to read and recognize. Still others have been designed with the indicator at the bottom, but their digital wheels require a specific angle and have relatively many parts and are complex to design. Some are designed as separate counting assemblies, which are not integrated in the drive, resulting in a corresponding increase in production and matching costs. Disclosure of Invention The main object of the present invention is to provide a mechanical counting inhalation aerosol dispenser. In order to achieve the purpose, the technical scheme includes that the mechanical counting inhalation aerosol drug feeder comprises a driver, wherein one end of the driver is provided with an upward opening, the other end of the driver is provided with a nozzle, and the opening and the nozzle form a certain included angle. A canister storing a medicinal aerosol is inserted into the driver from the opening, and a sealing valve provided at one end of the canister is fixed in a receptacle of the driver at an end near the spout. The medicine storage tank is nested with a circular digital wheel. The opening side is provided with fixed lid, firmly overlaps on the medicine storage jar through the sleeve in the fixed lid, the fixed lid embeds has disc ten digit number wheels. The front panel of the driver is provided with a number display window, and the number wheel can be driven to rotate to achieve the counting function by pressing the medicine storage tank to take medicine. Preferably, rotational support is provided for the unit number wheel at portions of the canister having different outer diameters. The single digit wheel is nested on the medicine storage tank and rotates by taking the axle center of the medicine storage tank as the center. Preferably, a fixing cover is nested at one end of the medicine storage tank, two fixing holes are formed in the fixing cover and used for fixing the rotating shaft of the tens digit wheel, and the tens digit wheel can rotate along the axis formed by the two fixing holes. Preferably, the single digit wheel can rotate along the axis of the medicine storage tank through a space formed by the nesting of the fixed cover and the medicine storage tank. Preferably, the outer edge of the annular position digital wheel is provided with two groups of numbers 0-9 along the circumferential direction, and the distance between each two adjacent numbers is the same. The special digital position