A tablet driver and a medicine dispensing device

Abstract

This invention discloses a tablet driver and drug dispensing device, including a drive unit, a shaft, a hub, and a spring arm. The shaft extends perpendicularly to the drive unit and defines a rotation axis. The hub is disposed on one side of the drive unit and can rotate around the shaft. The surface of the hub is configured to receive a target tablet. The spring arm extends from the outer periphery of the shaft towards the inner wall of the hub and is connected to the hub via a quick-connect structure. When the hub rotates relative to the shaft, the spring arm can deflect clockwise / counterclockwise, thereby providing tension compensation. This tablet driver and drug dispensing device, through its tablet driver compensation design, ensures that the drug carrier is subjected to stable tension and is evenly spaced, thus guaranteeing accurate drug delivery. The tablet driver has a simple structure and is easy to assemble, contributing to cost reduction and efficiency improvement in device assembly.

Description

[0001] This application is a divisional application of Chinese patent application CN202410521041.9, filed on April 25, 2024, entitled "A tablet driver and drug dispensing device". Technical Field

[0002] This invention relates to the field of medical device technology, and in particular to a tablet driver and a drug dispensing device. Background Technology

[0003] In drug administration, such as in bronchodilator therapy, the use of inhalation devices is well-known. Such devices typically include a body or shell in which a drug carrier is disposed. Known inhalation devices include those in which the drug carrier is a blister pack containing multiple discontinuous doses of powdered drug. These devices typically include mechanisms for obtaining these doses, usually including a puncture device or a device for peeling a cover from a substrate, thereby obtaining and inhaling the powdered drug. Such mechanisms can also be used to dispense tablet-type drugs, where the tablet is exposed after the cover is peeled from the substrate for removal and subsequent consumption.

[0004] The applicant has learned that such devices typically deliver medication by rotating an outer cap to actuate its internal mechanism. The applicant is also aware of the potential problems with the design: the outer cap is intended to provide a stable pulling force and evenly distribute the drug carrier during opening, and to automatically close after use rather than requiring manual reset. Summary of the Invention

[0005] The purpose of this invention is to provide a tablet driver and a drug dispensing device, which at least solves the problem that the drug carrier cannot be uniformly divided due to unstable tension, so that the drug can be accurately dispensed.

[0006] A chip driver, comprising:

[0007] Drive unit;

[0008] The shaft extends perpendicularly to the drive unit and defines the axis of rotation;

[0009] A hub is disposed on one side of the drive unit and is rotatable around the shaft, and the surface of the hub is configured to receive the target sheet;

[0010] A spring arm extends from the outer periphery of the shaft toward the inner wall of the hub, and the spring arm is connected to the hub via a quick-connect structure;

[0011] When the hub rotates relative to the shaft, the elastic arm can deflect clockwise or counterclockwise to provide tension compensation.

[0012] In some embodiments, the driving unit is a driving wheel or a driving gear.

[0013] In some embodiments, the shaft portion is integrally formed with the drive portion and / or the elastic arm.

[0014] In some embodiments, the shaft portion is provided with a central hole extending to the drive portion.

[0015] In some embodiments, a mounting hole is provided at the end of the hub away from the drive unit, and the hub is fitted onto the shaft through the mounting hole.

[0016] In some embodiments, a flange is provided on the outer periphery of the shaft portion, the outer diameter of the flange is larger than the diameter of the mounting hole, and the distance from the flange to the drive portion is greater than or equal to the distance from the mounting hole to the drive portion.

[0017] In some embodiments, the drive unit is provided with a boss on the side near the hub; the inner wall of the hub is provided with a plurality of vertical ribs at intervals, and the vertical ribs are provided with corners that ride on the boss.

[0018] In some embodiments, the hub has a groove along its side edge to form a hook portion, the hook portion being configured to receive the front end portion of the target piece.

[0019] In some embodiments, the outer periphery of the hub is provided with at least one cross-section; and / or, the surface of the hub is provided with texture or coating.

[0020] In some embodiments, the drive unit is provided with an observation port, the position of which is directly opposite to the position of the quick-connect structure.

[0021] In some embodiments, the quick-connect structure includes a fixing member disposed within the hub and a counter member disposed on the elastic arm; wherein the counter member is engaged with the fixing member.

[0022] In some embodiments, the fixing member is a cross rib integrally formed on the inner top of the hub, and the counter member is a clamp, which is detachably sleeved on the cross rib.

[0023] A drug dispensing device comprising at least one drug carrier having multiple pouches, the pouches being defined between a substrate and a cover sheet adhered together and separable from each other under tension, the drug dispensing device comprising:

[0024] A receiving station for receiving drug powder from the capsule of the drug carrier;

[0025] A dispensing mechanism is configured to open and deliver the capsules of the drug carrier one by one to the receiving station, while simultaneously winding up the peeled-out substrate and the cover sheet, wherein the dispensing mechanism includes the aforementioned sheet driver;

[0026] The outlet connects to the receiving station, allowing the user to inhale at least one drug powder each time for treatment.

[0027] In some embodiments, the dispensing mechanism further includes an indexing wheel having a groove for receiving the pouch;

[0028] The indexing wheel is connected to the plate driver, and the groove can deliver the drug carrier bags one by one to the receiving station as the indexing wheel rotates.

[0029] In some embodiments, the drug dispensing device further includes a flip cover that is continuously movable from a first position of the device through a second position to a third position and is mechanically connected to the tablet driver.

[0030] In the first position, the flip cover completely covers the outlet;

[0031] When moving from the first position to the second position, the flip cover exposes at least part of the outlet, but its movement does not actuate the chip driver;

[0032] When moving from the second position to the third position, the flip cover fully exposes the outlet, and its movement actuates the chip driver.

[0033] Compared with the prior art, the beneficial effects of the present invention include at least the following:

[0034] 1. Through the compensation design of the tablet driver, the drug carrier can be subjected to stable tension and be evenly divided, thereby ensuring that the drug can be accurately delivered.

[0035] 2. The chip driver has a simple structure and is easy to assemble, which plays a role in reducing costs and increasing efficiency in device assembly.

[0036] 3. The flip cover has a locking function when in position and an automatic reset function, which makes it convenient for users.

[0037] 4. The twisting mechanism makes it less likely for the flip cover to be accidentally opened, and it also promotes the full reset of the flip cover, thereby reducing the possibility of accidental contact with the outlet and contamination.

[0038] 5. The ratchet assembly's free-spinning design and the locking mechanism's torsion component both have anti-misoperation functions, which can prevent ineffective drug release.

[0039] 6. The sliding stop unit ensures that the ratchet assembly remains in the reference position after each actuation, thereby guaranteeing that the capsule on the drug carrier can be accurately positioned and improving the reliability of drug delivery.

[0040] 7. The flip-top linkage distribution mechanism simplifies the device structure and facilitates user operation. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of the drug carrier used in the drug dispensing device of the present invention.

[0042] Figure 2 This is a schematic diagram of the structure of the drug dispensing device of the present invention in the first position.

[0043] Figure 3 This is a schematic diagram of the structure of the drug dispensing device of the present invention in the second position.

[0044] Figure 4 This is a schematic diagram of the structure of the drug dispensing device of the present invention in the third position.

[0045] Figure 5 This is a schematic diagram of the dispenser housing of the drug dispensing device of the present invention.

[0046] Figure 6 This is a schematic diagram of the internal structure of the drug dispensing device of the present invention after the second housing is hidden.

[0047] Figure 7 This is a schematic diagram showing the cooperation between the receiving station, the dispensing mechanism, and the outlet of the drug dispensing device of the present invention.

[0048] Figure 8 This is a schematic diagram of the automatic spring-back structure of the drug dispensing device of the present invention.

[0049] Figure 9 This is a partially enlarged view of the inner side of the first housing of the drug dispensing device of the present invention.

[0050] Figure 10 This is a schematic diagram of the flip-top structure of the drug dispensing device of the present invention.

[0051] Figure 11 This is a front structural schematic diagram of the dispensing mechanism of the drug dispensing device of the present invention.

[0052] Figure 12 This is a schematic diagram of the rear structure of the dispensing mechanism of the drug dispensing device of the present invention.

[0053] Figure 13 This is a schematic diagram of the ratchet assembly of the drug dispensing device of the present invention in the first position.

[0054] Figure 14 This is a schematic diagram of the ratchet assembly of the drug dispensing device of the present invention in the second position.

[0055] Figure 15 This is a schematic diagram of the ratchet assembly of the drug dispensing device of the present invention in the third position.

[0056] Figure 16a This is a schematic diagram of the ratchet assembly in the reference position.

[0057] Figure 16b This is a schematic diagram of the ratchet assembly deviating from the reference position.

[0058] Figure 17 This is a schematic diagram of the ratchet assembly of the drug dispensing device of the present invention.

[0059] Figure 18 yes Figure 17 A sectional view along AA.

[0060] Figure 19 This is a schematic diagram of the first wheel of the ratchet assembly of the drug dispensing device of the present invention.

[0061] Figure 20 This is a schematic diagram of the second wheel of the ratchet assembly of the drug dispensing device of the present invention.

[0062] Figure 21 This is a schematic diagram of the structure of the tablet driver of the drug dispensing device of the present invention.

[0063] Figure 22 This is a schematic diagram of the tablet driver of the drug dispensing device of the present invention from another perspective.

[0064] Figure 23 This is a schematic diagram of the connection structure between the shaft, drive unit, and elastic arm of the tablet driver of the drug dispensing device of the present invention.

[0065] Figure 24 This is a schematic diagram of the structure of the hub of the tablet driver of the drug dispensing device of the present invention.

[0066] Figure 25 This is a schematic diagram of the substrate winding shaft and counter transmission connection of the drug dispensing device of the present invention.

[0067] In the figure: 1. Distributor housing; 11. First housing; 12. Second housing; 13. Air grille; 14. Protruding portion; 141. Opening; 142. First retaining groove; 143. Assembly cavity opening;

[0068] 2. Export;

[0069] 3. Flip cover; 31. Rotating part; 311. Interface; 312. Guide groove; 313. Second retaining groove; 32. Anti-slip texture;

[0070] 4. Distribution mechanism; 41. Mounting bracket; 411. Main shaft; 42. Ratchet assembly; 421. First wheel; 4211. Ratchet; 42111. First guide section; 42112. Friction contact section; 42113. Internal gear structure; 42114. Second guide section; 42115. External gear structure; 4212. Main gear; 4213. Mounting hole; 4214. Recessed area; 422. Second wheel; 4221. Pawl arm; 4222. Positioning protrusion; 4223. Protruding key; 423. Sliding stop unit; 4231. Slide groove; 4232. Stop block; 43. Transmission assembly; 431. Indexing wheel; 4311. Groove; 44. Peeling assembly; 441. Plate driver; 4411. Drive unit; 44 111, Observation port; 44112, Boss; 4412, Shaft; 44121, Center hole; 44122, Flange; 4413, Shaft hub; 44131, Assembly hole; 44132, Groove; 44133, Hook; 44134, Vertical rib; 44135, Fixing element; 4414, Elastic arm; 44141, Hand piece; 442, Substrate winding shaft; 45, Holding plate; 451, Elastic hook; 452, Arc groove;

[0071] 5. Receiving station; 51. Receiving port;

[0072] 6. Locking mechanism; 61. Torsion member; 62. Locking tongue; 63. Button;

[0073] 7. Counter;

[0074] 8. Drug carrier; 81. Encapsulation bag; 82. Substrate; 83. Cover plate. Detailed Implementation

[0075] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided to make the invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0076] The terms used to express position and direction in this invention are illustrated with reference to the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this invention.

[0077] This application discloses a drug dispensing device, which has at least one drug carrier 8 having multiple sacs 81 inside. For example... Figure 1 As shown, the drug carrier 8 is strip-shaped and presented in a coiled form, while the capsule 81 extends relative to the length and lateral direction of the drug carrier 8, so that a large number of capsules 81 can deliver the drug at equal intervals along a given length.

[0078] The drug carrier 8 includes a substrate 82 and a cover plate 83. A blister is formed on the substrate 82, which, when bonded to the cover plate 83, forms the capsule 81. The capsule 81 is confined between the substrate 82 and the cover plate 83, which are bonded together. The substrate 82 and the cover plate 83 can be appropriately adhered to each other by heat sealing, but except for the front ends of the substrate 82 and the cover plate 83, this allows the front ends of the drug carrier 8 to separate from each other, facilitating their separation under tension, thereby opening the capsule 81 on the drug carrier 8.

[0079] Each capsule 81 on the drug carrier 8 has the same type and / or contains the same dose value (e.g., mass or volume) of drug powder, or in other embodiments, each capsule 81 on the drug carrier 8 also uses different types and / or contains different dose values ​​of drug powder.

[0080] join Figures 2 to 7 As shown, the drug dispensing device includes a dispenser housing 1, an outlet 2, a flip cover 3, and a dispensing mechanism 4.

[0081] The distributor housing 1 can take any suitable shape or form to accommodate other parts or mechanisms of the device, such as the receiving station 5, the dispensing mechanism 4, etc.

[0082] like Figure 5 As seen in a specific embodiment, the dispenser housing 1 includes a first housing 11 and a second housing 12, which can be symmetrically distributed from left to right and cannot be disassembled after being connected. For example, the first housing 11 and the second housing 12 can be connected by means of heat fusion, snap fasteners, etc., to form the dispenser housing 1, making the device a disposable consumable, thereby improving the safety of use.

[0083] The outlet 2 is located on the dispenser housing 1. For example, the outlet 2 can be fixed to the top of the dispenser housing 1 by snap-fit, and the outlet 2 has a raised fitting part that is constructed in a relatively flat oval shape to fit the human lips.

[0084] In addition, exit 2 connects to receiving station 5. See Figure 7 As shown, the receiving station 5 is disposed inside the dispenser housing 1 and can be detachably connected to the dispensing mechanism 4. The receiving station 5 is provided with at least one receiving hole 51 at the end away from the outlet 2. The receiving hole 51 can be connected to the indexing wheel 431 in the dispensing mechanism 4. The dispensing mechanism 4 is operated to administer medication so that the user can take at least one drug powder for treatment each time.

[0085] Furthermore, Figures 3 to 5An air grille 13 communicating with a receiving station 5 is shown on the dispenser housing 1. The air grille 13 allows air to enter the receiving station 5, thereby providing an auxiliary airflow to disperse the drug powder when the device is used, so that it can be fully absorbed by the user.

[0086] Still see Figures 2 to 4 As shown, the flip cover 3 is mounted on the dispenser housing 1, and the two are rotatably connected. The flip cover 3 can move continuously from the first position of the device through the second position to the third position. By controlling the movement of the flip cover 3, the user can flexibly control the opening and closing of the outlet 2 and selectively link the dispensing mechanism 4 to perform the drug delivery action, thereby improving the convenience of operation. The linkage relationship between the flip cover 3 and the dispensing mechanism 4 is detailed below.

[0087] It should be noted that during the above-mentioned movement process, the first position corresponds to the initial position, at which point the flip cover 3 can cover and protect the outlet 2. The second position is a transitional position. Before reaching the second position, the outlet 2 is at least partially exposed, and the dispensing mechanism 4 inside the device is not activated. This design aims to prevent the user from activating the dispensing mechanism 4 and wasting medication when cleaning the outlet 2, and also to provide an ineffective movement path to avoid the dispensing mechanism 4 directly administering medication due to misoperation. The third position corresponds to the final position, at which point the outlet 2 is fully exposed, and the dispensing mechanism 4 opens the pouch 81 and delivers it to the receiving port 51 of the receiving station 5, indicating that the device is ready for use.

[0088] See Figures 8 to 10 As shown, in a preferred embodiment, a locking mechanism 6 is provided between the flip cover 3 and the dispenser housing 1, thereby forming an automatic flip-top structure. In this automatic flip-top structure, when the flip cover 3 moves from the first position to the third position of the device, it can be limited to the third position by the locking mechanism 6, and automatically reset to the first position after being triggered.

[0089] The locking mechanism 6 includes a torsion member 61, a locking tongue 62, and a button 63. The torsion member 61 connects the distributor housing 1 and the flip cover 3, and can twist around the rotation axis of the flip cover 3. For example, the torsion member 61 can be a torsion spring, providing the necessary torque for the flip cover 3 to reset. The locking tongue 62 is disposed on the rotating portion 31 of the flip cover 3. For example, the locking tongue 62 can be integrally formed on the rotating portion 31, and its shape is generally hook-shaped, which facilitates elastic deformation along the direction perpendicular to the flip cover 3. The button 63 is disposed on the protruding portion 14 of the distributor housing 1, which protrudes outward from the center of the surface of the distributor housing 1 and has an opening 141 opposite to the button 63.

[0090] In the aforementioned automatic cover return structure, when the flip cover 3 moves to the third position of the device, the locking tongue 62 engages with the opening 141, thereby limiting the flip cover 3. Compared to existing cover structures, the flip cover 3 of this application will not move when the user uses the device, thus avoiding accidental movement that could cause changes in drug dosage and affect treatment, while also reducing the impact on the patency of the outlet 2 and the engagement with the lip. Furthermore, after the user triggers button 63, i.e., after the pressing operation, the locking tongue 62 can separate from the opening 141, and the flip cover 3 is reset to the first position under the drive of the torsion member 61, thus replacing the manual pushing of the flip cover 3 to reset in the existing cover structure, making the operation simpler and more efficient.

[0091] It is understandable that when the flip cover 3 is moved from the first position of the device to the second or third position, the user needs to overcome the torque of the torsion member 61 to achieve this. This means that when the flip cover 3 is in the first position, it is actually restricted by the torsion member 61. However, this restriction makes the torsion member 61 have a better anti-misoperation function, thereby avoiding problems caused by the device being opened by the user without their subjective intention, such as the outlet 2 being contaminated or the dispensing mechanism 4 dispensing medication.

[0092] In this automatic spring-back mechanism, Figures 2 to 4 Both show that the flip cover 3 has anti-slip texture 32 at least at the operating end (the end of the flip cover 3 near the user's thumb) to increase friction and facilitate the user's opening operation.

[0093] See Figure 6 and Figure 10 As shown, the rotating part 31 of the flip cover 3 is provided with an interface 311, which is used for mechanically connecting target components, such as the ratchet assembly 42 of the dispensing mechanism 4. This allows the flip cover 3 to actuate the dispensing mechanism 4 to perform the drug dispensing function. Compared to some other devices where the flip cover 3 can only control the opening and closing of the outlet 2, and the dispensing mechanism 4 is actuated by additional parts such as a drive rod or motor, this application, by linking the flip cover 3 with the ratchet assembly 42 of the dispensing mechanism 4, simplifies the device structure while allowing the flip cover 3 to selectively actuate the dispensing mechanism 4, thus improving ease of use.

[0094] Furthermore, the interface 311 has a guide groove 312 extending toward the edge of the rotating portion 31 to better guide the interface 311 to engage with the mating portion on the ratchet assembly 42, for example, guiding the protruding key 4223 on the second wheel 422 of the ratchet assembly 42 to slide toward the interface 311.

[0095] See you later Figure 2 and Figure 4 As shown, when the flip cover 3 is in the first position of the device, the flip cover 3 can block the air grille 13 to prevent the receiving station 5 from being contaminated, and when the device is in the third position, the air grille 13 is fully exposed to provide sufficient auxiliary airflow to the inside of the receiving station 5.

[0096] like Figure 9 and Figure 10 As shown, the protruding part 14 of the dispenser housing 1 is provided with a first retaining groove 142, the rotating part 31 of the flip cover 3 is provided with a second retaining groove 313, one end of the torsion member 61 is connected to the first retaining groove 142, and the other end is connected to the second retaining groove 313.

[0097] Figure 5 The convex portion 14 is shown to have an assembly cavity 143 that limits the rotation angle of the rotating portion 31 to 0°-110°, preferably to 0°-108°. Within this angle range, the ratchet assembly 42 connected to the flip cover 3 can smoothly complete one actuation without overtravel.

[0098] See Figure 6 , Figure 11 and Figure 12 As shown, the dispensing mechanism 4 is disposed within the dispenser housing 1. The dispensing mechanism 4 includes a mounting frame 41 and a ratchet assembly 42, a transmission assembly 43, and a peeling assembly 44 disposed on the mounting frame 41. The mounting frame 41 is fixedly disposed within the dispenser housing 1. The ratchet assembly 42 can selectively engage with the transmission assembly 43 depending on the position of the flip cover 3, thereby causing the peeling assembly 44 to perform relevant actions to open the capsule 81 on the drug carrier 8 and roll up the peeled substrate 82 and cover 83 respectively.

[0099] Figure 17 The ratchet assembly 42 is shown to include a first wheel 421 and a second wheel 422. Wherein, as... Figures 13 to 15 and Figure 19 As shown, the first wheel 421 is rotatably mounted on the main shaft 411 of the mounting bracket 41, and the second wheel 422 is rotatably mounted on the first wheel 421. The second wheel 422 can rotate freely from the first position of the device to the second position. During this process, the second wheel 422 rotates freely by 20°, while the first wheel 421 remains stationary. After the second wheel 422 engages with the first wheel 421 in the second position of the device, it rotates to the third position. During this process, the second wheel 422 drives the first wheel 421 to rotate synchronously by 88°. At the same time, the first wheel 421 drives the wafer driver 441 toward the target device, namely the stripping assembly 44, thereby causing the wafer driver 441 to perform the stripping and winding functions. Compared to other devices where the chip driver 441 is directly actuated to perform corresponding actions, this application links the ratchet assembly 42 with the chip driver 441 (via the transmission assembly 43). This facilitates operation while the ratchet assembly 42's idle rotation design provides a safety measure for the action of the peeling assembly 44 chip driver 441, effectively preventing unintended peeling actions caused by the small movement of the flip cover 3. This gives the device a function to prevent misoperation and improves the reliability of use.

[0100] Specifically, the first wheel 421 is circumferentially provided with at least one ratchet 4211, and the second wheel 422 is circumferentially provided with at least one pawl arm 4221. As an example, the first wheel 421 is circumferentially provided with five ratchet 4211s, and the second wheel 422 is also circumferentially provided with five pawl arms 4221s. The pawl arms 4221 correspond one-to-one with the ratchet 4211s and engage to ensure stable transmission and uniform force distribution. Furthermore, the pawl arms 4221 engage with the ratchet 4211 only during the transition from the second position to the third position of the device, thereby driving the first wheel 421 to rotate unidirectionally and providing power to the peeling assembly 44.

[0101] Figure 16a The diagram shows the state of the first wheel 421 and the second wheel 422 in the reference position. Under normal circumstances, as the flip cover 3 resets, the first wheel 421 and the second wheel 422 of the ratchet assembly 42 will also be positioned by the retaining plate 45. That is, in the reference position, the first wheel 421 abuts against the elastic hook 451 on the retaining plate 45 through the external tooth structure 42115 of the ratchet member 4211, and the second wheel 422 engages with the arc groove 452 on the retaining plate 45 through the positioning protrusion 4222.

[0102] In this ratchet assembly 42, the second wheel 422 can reset the first wheel 421 to the reference position through the static friction damping force generated with the first wheel 421. That is, during the rotation of the second wheel 422 from the third position to the first position of the device, the pawl arm 4221 can engage with the ratchet 4211 and generate static friction damping force to rotate the first wheel 421 clockwise. The external tooth structure 42115 of the ratchet 4211 abuts against the elastic hook 451 on the retaining plate 45, thereby holding the first wheel 421 in the reference position. However, as the device is used more times, the static friction damping force will gradually become less than the torque required for the calibration of the first wheel 421, causing the first wheel 421 to still deviate from the reference position after the second wheel 422 rotates to the first position. Figure 16b As shown, there is a gap between the external tooth structure 42115 of the ratchet 4211 and the elastic hook 451 on the retaining plate, which causes an error in the positional accuracy of the first wheel 421. This results in the drug carrier 8's capsule 81 being unable to be accurately distributed to the receiving station 5 during the next actuation, affecting the user's inhalation or preventing the inhalation of an accurate dose, which is not what the design intended.

[0103] For this reason, see Figures 18 to 20 As shown, in a preferred embodiment, a sliding unit 423 is provided between the first wheel 421 and the second wheel 422. The sliding unit 423 is configured to form a mechanical rigid connection with the first wheel 421 before the second wheel 422 rotates from the third position of the device to the first position, thereby forcibly resetting the first wheel 421 to the reference position, thereby improving the accuracy and reliability of the ratchet assembly 42 actuation.

[0104] The sliding unit 423 includes a groove 4231 on the first wheel 421 and a stop 4232 on the second wheel 422. As an example, the upper surface of the first wheel 421 has five grooves 4231 evenly spaced circumferentially, and the lower surface of the second wheel 422 has five stops 4232 evenly spaced circumferentially, with each stop 4232 slidably disposed within its corresponding groove 4231. Before the second wheel 422 rotates from the third position to the first position of the device, the stop 4232 first abuts against the end of its current groove 4231, forming a... Figure 18 The rigid connection structure shown is characterized by very small components, including the stop 4232 and the slide 4231. The interference force generated by their interaction is less than the restraining force of the retaining plate 45 on the first wheel 421, but still stronger than the static friction damping force mentioned above. As the second wheel 422 continues to rotate, the first wheel 421 is pushed back to its reference position and restrained by the retaining plate 45, while the stop 4232 is forced to cross the current slide 4231 and enter the adjacent slide 4231, waiting for the next actuation of the ratchet assembly 42. The addition of the stop unit 423 ensures that the position of the first wheel 421 is precisely controllable after each actuation of the ratchet assembly 42, thereby ensuring that the capsule 81 on the drug carrier 8 can be effectively positioned, improving the reliability of drug delivery by the dispensing mechanism 4. Of course, in some alternatives, the positions of the slide 4231 and the stop 4232 can also be interchanged. For example, the slide unit 423 can also include the stop 4232 set on the first wheel 421 and the slide 4231 set on the second wheel 422, which will not be repeated here.

[0105] like Figure 19 As shown, in the above-mentioned ratchet assembly 42, the main shaft 411 for mounting the first wheel 421 is preferably a toothed shaft to reduce the rotational friction between it and the first wheel 421. Correspondingly, the first wheel 421 is provided with a mounting hole 4213 that mates with the main shaft 411, and a plurality of recessed areas 4214 are spaced apart on the outer periphery of the mounting hole 4213. The recessed areas 4214 are arranged close to the inner side of the slide groove 4231. In this application, the recessed areas 4214 make the wall thickness of the mounting hole 4213 tend to be uniform, avoiding shrinkage deformation of the first wheel 421 during molding due to uneven wall thickness, ensuring that the structural quality and precision of the mounting hole 4213 meet the requirements. On the other hand, the recessed areas also reduce the weight and raw materials of the first wheel 421, thereby reducing its molding cost.

[0106] exist Figures 13 to 17In the ratchet assembly 42 shown, the ratchet 4211 of the first wheel 421 has a stepped inner surface, which includes a first guide section 42111 and a friction engagement section 42112. The first guide section 42111 guides the pawl arm 4221 into the engaged position during the second wheel 422's rotation from the first position to the second position. An internal tooth structure 42113 is formed at the connection between the first guide section 42111 and the friction engagement section 42112. This internal tooth structure 42113 engages with the pawl arm 4221 when the second wheel 422 rotates to the second position, thereby forcing the first wheel 421 to rotate unidirectionally by a certain angle, for example, the first wheel 421 rotates counterclockwise by 88°.

[0107] The friction-fitting section 42112 is closer to the pawl arm 4221 than the first guide section 42111. This allows the pawl arm 4221 to engage with the friction-fitting section 42112 during the portion of the second wheel 422's transition from the third position to the first position, generating static friction damping force. This causes the first wheel 421 to reset to the reference position and remain confined. As the second wheel 422 continues to rotate toward the first position, the torque applied to the second wheel 422 when the flip cover 3 resets and closes is greater than the static friction damping force. The pawl arm 4221 separates from the friction-fitting section 42112, ultimately causing the first wheel to rotate to the first position of the device.

[0108] Furthermore, the ratchet 4211 also has an outer surface extending outwardly circumferentially, which includes a second guide section 42114. The second guide section 42114 guides the movement of the outer surface of the ratchet 4211 during the rotation of the second wheel 422 from the second position to the third position of the device, and forces the elastic hook 451 on the retaining plate 45 to expand outward. Furthermore, an external tooth structure 42115 is formed at the connection between the outermost end of the second guide section 42114 and the edge of the first wheel 421. When the second wheel 422 rotates to the third position of the device, the external tooth structure 42115 can pass over the elastic hook 451 and, under the rigid connection of the sliding unit 423 and / or the static friction damping force generated by the engagement of the pawl arm 4221 with the ratchet 4211, abuts against the elastic hook 451, thereby holding the first wheel 421 in the reference position. Figure 16a .

[0109] Correspondingly, a positioning protrusion 4222 is also provided on the outer periphery of the second wheel 422. When the second wheel 422 returns to the first position of the device, the positioning protrusion 4222 can engage with the arc groove 452 on the retaining plate 45, thereby keeping the second wheel 422 in the reference position. Figure 16a .

[0110] See Figure 12 and Figure 18As shown, in this ratchet assembly 42, the first wheel 421 serves as a power output component, and a main gear 4212 is provided on the side away from the second wheel 422. Preferably, the main gear 4212 is coaxial with the first wheel 421 and integrally formed, which effectively ensures the concentricity and engagement strength of the main gear 4212 and the first wheel 421, and the lateral arrangement of the main gear 4212 facilitates meshing and installation with the transmission assembly 43.

[0111] The second wheel 422 has a protruding key 4223 on the side away from the first wheel 421, such as Figure 6 and Figure 17 As shown, the protruding key 4223 matches the interface 311 at the rotating part 31 of the flip cover 3, and can slide quickly and embed into the interface 311 under the guidance of the guide groove 312, so that the flip cover 3 is mechanically connected to the second wheel 422.

[0112] See Figures 12 to 15 As shown, the transmission assembly 43 is disposed between the ratchet assembly 42 and the stripping assembly 44, and serves to transmit power and deliver the drug carrier 8. In some embodiments, the transmission assembly 43 is a gear assembly composed of several gear components, which connect the ratchet assembly 42 and the stripping assembly 44 respectively in a tooth-meshing manner.

[0113] Figure 7 , Figure 11 and 12 A partial structure of the transmission assembly 43 is shown, which is the indexing wheel 431 in the transmission assembly 43. The indexing wheel 431 has circumferentially arranged grooves 4311 for receiving pouches 81; exemplaryly, the number of grooves 4311 can be 2-6. When the ratchet assembly 42 is actuated, the second wheel 422 moves from the second position to the third position of the device. The previous groove 4311 on the indexing wheel 431 delivers the previous pouch 81 on the drug carrier 8 to the receiving station 5, and the next groove 4311 on the indexing wheel 431 engages with the next pouch 81 on the drug carrier 8. This sequential delivery continues, and the peeling assembly 44 opens the pouches 81, allowing the drug powder to enter the receiving station 5.

[0114] Figures 11 to 12 The peeling assembly 44 is shown to include a stripper driver 441. The stripper driver 441 is located at the top of the dispenser body and is arranged near the receiving station 5. The stripper driver 441 is used to connect to the front end of the cover 83, provide the main power for peeling off the drug carrier 8 and opening the capsule 81, and reel in the peeled-off waste cover 83.

[0115] See Figures 21 to 24As shown, in a preferred embodiment, the chip driver 441 includes a drive portion 4411, a shaft portion 4412, a hub 4413, and a spring arm 4414. The shaft portion 4412 extends perpendicularly to the drive portion 4411; the hub 4413 is disposed on one side of the drive portion 4411 and is rotatable around the shaft portion 4412; the spring arm 4414 extends from the outer periphery of the shaft portion 4412 toward the inner wall of the hub 4413, and is connected to the hub 4413 via a quick-connect structure. When the hub 4413 rotates relative to the shaft portion 4412, the corresponding flip cover 3 / second wheel 422 moves from a second position to a third position of the device. During this time, the spring arm 4414 can deflect clockwise / counterclockwise to provide tension compensation, ensuring that the uniform indexing of the drug carrier 8 is not affected even if the effective winding surface diameter of the hub 4413 is arbitrarily increased.

[0116] It should be noted that existing plate drive components (distinguishing between left and right) typically use built-in torsion springs to achieve tension compensation, with each drive component only able to rotate in one direction to provide tension compensation. However, the plate driver 441 of this application uses a spring arm 4414 to achieve tension compensation through clockwise / counterclockwise deflection. Only one spring arm 4414 is needed to simultaneously meet left and right (i.e., clockwise / counterclockwise) deflection requirements. It integrates the left and right plate drive components into a single device, offering better versatility. Especially during installation, the plate driver 441 eliminates the need to distinguish between left and right, effectively improving production efficiency and assembly convenience.

[0117] In addition, such as Figure 23 As shown, in the aforementioned chip driver 441, the shaft portion 4412 extends perpendicularly to the drive portion 4411. The shaft portion 4412 and the drive portion 4411 can be integrally formed. The elastic arm 4414 extends from the outer periphery of the shaft portion 4412 toward the inner wall of the hub 4413. The shaft portion 4412 and the elastic arm 4414 can also be integrally formed. This makes the drive portion 4411, shaft portion 4412, and elastic arm 4414 a single part, while the hub 4413 is a separate part. During assembly, the hub 4413 is directly fitted onto the shaft portion 4412, and the elastic arm 4414 is connected to the hub 4413 via a quick-connect structure. Compared to existing chip drivers, the chip driver 441 of this application has fewer parts and is quicker to assemble. Especially in mass production, this chip driver 441 can effectively reduce production costs and improve assembly efficiency.

[0118] See Figure 23 and Figure 24As shown, the quick-connect structure includes a fixing member 44135 disposed within the hub 4413 and a counter member 44141 disposed on the spring arm 4414114. By engaging the counter member 44141 with the fixing member 44135, the assembly of the plate driver 441 can be quickly completed. The shape and structure of the fixing member 44135 and the counter member 44141 are not limited. For example, they could be... Figure 24 As shown, the fixing member 44135 is a cross-shaped rib integrally formed on the inner top of the shaft hub 4413, and the clamping member 44141 is a sleeve formed by extending and bending the elastic arm 4414. The clamping member is detachably fitted onto the cross-shaped rib, thereby realizing the quick connection between the shaft hub 4413 and the elastic arm 4414 and facilitating the replacement of faulty parts. Alternatively, the fixing member 44135 can also be a slot integrally formed on the inner top of the shaft hub 4413, and the clamping member 44141 can be a buckle extending from the elastic arm 4414. The buckle is detachably inserted into the slot (not shown).

[0119] Furthermore, Figure 22 The drive unit 4411 shown is provided with an observation port 44111, which is positioned directly opposite the quick-connect structure. During assembly, the positions of the fixing member 44135 and the matching member 44141 can be determined through the observation port 44111. Alignment can be completed by simply adjusting the angle, thus facilitating the assembly of the plate driver 441.

[0120] In the aforementioned plate driver 441, the drive unit 4411 is preferably a drive gear. The first wheel 421 of the ratchet assembly 42 can be linked to the drive unit 4411 via the indexing wheel 431 of the transmission assembly 43, and the plate driver 441 can be controlled by moving the flip cover 3. Compared to some other devices where the plate driver 441 is actuated by additional parts, this application simplifies operation by linking the plate driver 441 with the flip cover 3, and allows the user to control the plate driver 441 to perform related actions via the flip cover 3. Of course, in some alternative embodiments, the drive unit 4411 can also be a drive wheel, and the first wheel 421 of the ratchet assembly 42 can be linked to the indexing wheel 431 of the transmission assembly 43 and / or the drive unit 4411 of the plate driver 441 via belt drive, friction drive, or other means (not shown).

[0121] Or as Figure 22 As shown, a central hole 44121 extending to the drive unit 4411 is provided in the shaft portion 4412. On the one hand, the central hole 44121 can reduce the overall weight of the plate driver 441, so that the power transmitted to the drive unit 4411 can drive the shaft hub 4413 to peel off and wind the cover plate 83 more smoothly; on the other hand, the central hole 44121 can play a positioning role during molding, which is beneficial to the integral molding of the shaft portion 4412 and the drive unit 4411.

[0122] See Figure 21 As shown, the end of the hub 4413 away from the drive part 4411 is provided with a mounting hole 44131, through which the hub 4413 is fitted onto the shaft part 4412. Further, as... Figure 23 As shown, an annular flange 44122 is provided on the outer periphery of the shaft portion 4412. The outer diameter of the flange 44122 is larger than the diameter of the mounting hole 44131, and the distance from the flange 44122 to the drive portion 4411 is greater than or equal to the distance from the mounting hole 44131 to the drive portion 4411. This stabilizes the shaft hub 4413 on the shaft portion 4412, preventing it from slipping off and ensuring the stability of the rotation of the shaft hub 4413.

[0123] The surface of the hub 4413 is configured to receive the target piece; for example, in this application, the surface of the hub 4413 is used to receive the front end portion of the cover piece 83. Further, Figure 21 The hub 4413 shown has a groove 44132 at its automatic edge, forming a hook 44133, which can better receive the front end of the cover plate 83. Preferably, the front end of the cover plate 83 is a block structure or annular structure, so as to better connect and cooperate with the groove 44132 or the hook 44133.

[0124] Furthermore, the outer periphery of the hub 4413 is provided with at least one cross-section; and / or, the surface of the hub 4413 is provided with texture or coating (to increase surface roughness). The cross-section and / or texture and coating can enhance the winding connection between the surface of the hub 4413 and the cover plate 83, thereby ensuring that the cover plate 83 can be tightly wound on the hub 4413 and avoid affecting the peeling of the drug carrier 8.

[0125] See Figure 23 and Figure 24 As shown, the inner wall of the hub 4413 is provided with a plurality of vertical ribs 44134 at intervals. The drive part 4411 is provided with a boss 44112 on the side near the hub 4413, and the vertical ribs 44134 are provided with corners that ride on the boss 44112. On the one hand, the vertical ribs 44134 can enhance the structural strength of the hub 4413. On the other hand, after the corners of the vertical ribs 44134 cooperate with the boss 44112, they can limit the rotation of the hub 4413, ensuring that it does not deflect when rotating around the shaft part 4412, thereby improving the stability of the operation of the plate driver 441.

[0126] See Figure 11 , Figure 12The stripping assembly 44 also includes a substrate winding shaft 442. Located at the bottom of the dispenser housing 1 and away from the receiving station 5, the substrate winding shaft 442 is used to connect the front end portion of the substrate 82 and wind up the stripped waste substrate 82. This substrate winding shaft 442 is also driven and controlled by the first wheel 421 of the ratchet assembly 42 via the transmission assembly 43, and its winding action on the substrate 82 is always synchronized with the winding action of the sheet driver 441 on the cover sheet 83. In some other embodiments, the sheet driver 441 may be used instead of the substrate winding shaft 442 to wind the substrate 82 (not shown).

[0127] Furthermore, a counter 7 is also connected to the substrate winding spool 442, such as... Figure 25 As shown, the counter 7 is preferably a mechanical counter, which is installed inside the dispenser housing 1 and allows the counting part to be exposed. When the flip cover 3 moves from the second position to the third position of the device, the ratchet assembly 42 is actuated, thereby driving the substrate to rotate around the reel 442, which in turn causes the counter 7 to perform a counting action to display the remaining number of uses of the device for user convenience.

[0128] The aforementioned drug dispensing device can be designed to receive a single drug carrier 8 to form a "single-active" drug therapy, or it can be designed to receive multiple drug carriers 8, with different drug carriers 8 providing different drug powders, which, when mixed together, form a "multi-active" drug therapy.

[0129] by Figure 7For example, in this application, the drug dispensing device preferably has two drug carriers 8, which are symmetrically arranged about the central axis of the device. The dispensing mechanism 4 also has two indexing wheels 431 and two peeling components 44, each symmetrically arranged about the central axis of the device. In use, the flip cover 3 is first moved from the first position to the second position of the device. Correspondingly, the second wheel 422 of the ratchet assembly 42 rotates counterclockwise by 20° and then engages with the first wheel 421. However, this process does not activate the peeling component 44. As the flip cover 3 moves from the second position to the third position and is confined there, the second wheel 422 of the ratchet assembly 42 drives the first wheel 421 to rotate 88° counterclockwise. The first wheel 421 delivers the capsule 81 on the drug carrier 8 to the receiving station 5 via the indexing wheel 431 of the transmission assembly 43. During this time, the transmission assembly 43 actuates the plate driver 441 and the substrate to rotate synchronously around the reel 442 to reel the cover 83 and the substrate 82 respectively, thereby opening the capsule 81 and exposing the two drug powders to the receiving hole 51 of the receiving station 5, indicating that the device is ready for use. The user can place the outlet 2 at the mouth and draw up the mixed drug powder for treatment. After use, the user can use the button 63 to automatically reset the flip cover 3 from the third position to the first position. The corresponding second wheel 422 of the ratchet assembly 42 rotates 108° clockwise to reset, while the first wheel 421 is held in the reference position. This process does not actuate the peeling assembly 44 until the flip cover 3 covers the outlet 2, awaiting the next use of the device.

[0130] This drug dispensing device is suitable for dispensing pharmaceutical products, particularly for treating respiratory diseases such as asthma and chronic obstructive pulmonary disease (COPD), bronchitis, and chest infections. Furthermore, it can also be used to treat diseases requiring systemic drug circulation, such as migraines and diabetes.

[0131] Therefore, suitable medications can be selected from the following, such as analgesics, such as codeine, dihydromorphine, ergotamine, fentanyl, or morphine; angina preparations, such as dithiazoline; antiallergics, such as cromoglycate (e.g., as a sodium salt), meperetin, or nalorome (e.g., as a sodium salt); anti-infectives, such as cephalosporin antibiotics, penicillins, streptomycin, sulfonamides, tetracyclines, and pentanemidine; antihistamines, such as mesafilin; and anti-inflammatory drugs, such as beclomethasone (e.g., as a dipropionate), fluticasone (e.g., as a propionate), deflufenone, budesonide, roponide, mometasone (e.g., as a furoate), ciroxonide, and triamcinolone acetate (e.g., as a propionate). Ketone compounds) or 6α,9α-difluoro-11β-hydroxy-16α-methyl-3-oxo-17α-propionic acid-androst-1,4-diene-17β-thiohydroxy acid S-(2-oxo-tetrahydro-furan-3-yl) ester; antitussives, such as noscapine; bronchodilators, such as salbutamol (e.g., as a free base or sulfate), salmeterol (e.g., as neonaftifine), ephedrine, adrenaline, fentetrol (e.g., as a hydrobromide), formoterol (e.g., as a fumarate), salbutamol, dihydroxyphenylisopropylaminoethanol, phenylphenol, phenylpropanolamine, pibuterol (e.g., as an acetate), tebufenozide (e.g., as a hydrochloride), hydroxypiperylbenzene, Terbutaline (e.g., as sulfate), neo-isoproterenol, tobutol, or 4-hydroxy-7-[[2-[[3-(2-phenethoxy)propyl]sulfonyl]ethyl]amino]ethyl-2(3H)-benzothiazolidinone; adenosine 2a agonists, such as 2R,3R,4S,5R)-2-[6-amino-2-(1S-hydroxymethyl-2-phenyl-ethylamino)-caffeine-9-yl]-5-(2-ethyl-2H-tetrazole-5-yl)-tetrahydro-furan-3,4-diol (e.g., as maleate); α4 integrin inhibitors, such as (2S)-3-[4-({[4-(aminocarbonyl)-1-linear urea]carbonyl}oxy)phenyl]-2-[((2S)-4-methyl-2-{[2-(2- [-methylphenoxy]acetyl]amino]valeryl]amino]propionic acid (e.g., as a free acid or potassium salt); diuretics, such as ampicillin; anticholinergic drugs, such as dextrose (e.g., as bromide), tiotropium, atropine, or oxytropium bromide; hormones, such as cortisone, hydrocortisone, or prednisolone; xanthines, such as aminophylline, theophylline-choline, lysine-theophylline, or theophylline; therapeutic proteins and peptides, such as insulin or glucagon; vaccines, diagnostics, and gene therapy. It will be apparent to those skilled in the art that, where appropriate, drugs may be used in the form of salts (e.g., as alkali metal or amine salts or as acid-added salts) or as esters (e.g., low-hydrocarbon esters) or as solvents (hydrates) to preferably enhance efficacy and / or drug stability.

[0132] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the invention without departing from the principles and spirit of the invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A drug dispensing device, characterized in that, include: The plate driver (441) includes a shaft portion (4412), a hub (4413) rotatably disposed on the shaft portion (4412), and an elastic arm (4414) extending from the shaft portion (4412) to the hub (4413) and connected thereto. The ratchet assembly (42) includes a first wheel (421) that is drive-connected to the shaft (4412), a second wheel (422) that is rotatably disposed on the first wheel (421), and a slide unit (423) disposed between the first wheel (421) and the second wheel (422). The sliding unit (423) includes a sliding groove (4231) disposed on the first wheel (421) and a stop block (4232) disposed on the second wheel (422). The drug dispensing device is configured to control the tablet driver (441) to perform a winding action by a ratchet assembly (42), wherein the second wheel (422) can idle from the first position to the second position, and engage the first wheel (421) in the second position and then rotate together to the third position, thereby driving the hub (4413) to wind up the target tablet, while the elastic arm (4414) can swing clockwise / counterclockwise to provide tension compensation for its winding; Before the second wheel (422) rotates from the third position to the first position, the stop block (4232) can abut against the end of the slide groove (4231), causing the first wheel (421) and the second wheel (422) to form a mechanical rigid connection, thereby forcibly resetting the first wheel (421) to the reference position.

2. The drug dispensing device according to claim 1, characterized in that, The chip driver (441) also includes a drive unit (4411) which is perpendicularly connected to the shaft unit (4412).

3. The drug dispensing device according to claim 2, characterized in that, The outer periphery of the shaft portion (4412) is provided with a flange (44122), and the center of the shaft hub (4413) is provided with a mounting hole (44131). Wherein, the outer diameter of the flange (44122) is greater than the diameter of the mounting hole (44131), and the distance from the flange (44122) to the drive part (4411) is greater than or equal to the distance from the mounting hole (44131) to the drive part (4411).

4. The drug dispensing device according to claim 2, characterized in that, The elastic arm (4414) and the hub (4413) are connected by a quick-connect structure, the quick-connect structure comprising: A fastener (44135) is provided on the inner top of the hub (4413), and the fastener (44135) is a cross-shaped rib. A countersleeve (44141) is disposed on the elastic arm (4414), the countersleeve (44141) being a clip and being detachably fitted onto the cross rib.

5. The drug dispensing device according to claim 1, characterized in that, There are two plate drivers (441), which are symmetrically distributed on the left and right sides of the central axis of the device, and the winding directions of the hubs (4413) of the two plate drivers (441) are opposite.

6. The drug dispensing device according to claim 4, characterized in that, The shaft (4412), the elastic arm (4414) and the opponent (44141) are integrally formed, and the shaft hub (4413) and the fixing member (44135) are integrally formed.

7. The drug dispensing device according to claim 2, characterized in that, A main gear (4212) is provided on the side of the first wheel (421) away from the second wheel (422), and the main gear (4212) is connected to the drive unit (4411) through the indexing wheel (431).

8. The drug dispensing device according to claim 1, characterized in that, The outer periphery of the first wheel (421) is provided with a ratchet (4211), and the outer periphery of the second wheel (422) is provided with a pawl arm (4221). During the transition of the second wheel (422) from the second position to the third position, the pawl arm (4221) engages with the ratchet (4211), and the shaft (4412) is rotated by the first wheel (421).

9. The drug dispensing device according to claim 8, characterized in that, During the period when the second wheel (422) rotates from the third position to the first position, the inner side of the ratchet (4211) can abut against the outer side of the pawl arm (4221), thereby generating static friction damping force.

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