Administration device for inhalation type medicine

Abstract

The invention relates to the technical field of medical equipment, and discloses an inhalation type medicine administration device which comprises a main machine, a base and an ultrasonic table are installed on the main machine, and an atomizing cup is installed on the ultrasonic table; the medicine storage assembly is used for storing medicines; the medicine feeding assembly is used for quantitatively feeding the medicine into the atomizing cup; and the shaking assembly is used for periodically shaking the stored medicament. Through the arrangement of the medicine feeding assembly, a medical worker can pump medicine in a medicine tank into a medicine injection pipe by rotating a rotary knob, the medical worker can control the rotating angle of the rotary knob according to the dosage scale indicated on a scale ring by a pointer on the rotary knob, and after the medical worker loosens the rotary knob, the medicine is fed into the medicine feeding pipe. And the medicament in the medicament injection pipe is automatically conveyed into the atomizing cup for the atomizing operation, so that medical staff can flexibly adjust the dosage of the medicament added each time according to different patients, and the operation is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a drug delivery device for inhaled drugs. Background Art

[0002] Respiratory diseases have a high incidence rate. Inhaled drug administration can directly reach the lesions in the respiratory tract, with advantages such as rapid onset, small dosage, and low side effects, making it the preferred treatment method, which has greatly promoted the development of drug delivery devices for inhaled drugs. Nebulizing devices are an important type among them, including ultrasonic nebulizers. Its working principle is to utilize ultrasonic energy to vibrate the liquid medicine violently, and then convert it into tiny aerosol particles. The fog volume can be adjusted and it is applicable to a variety of drugs.

[0003] Chinese Patent CN213374467U discloses "a nebulizing drug delivery device for oral and nasal diseases", which includes a nebulizing device main body. The nebulizing device main body includes a nebulizing mechanism. The bottom of the nebulizing mechanism is connected with a liquid medicine holding cylinder. A detachable mask is installed on the circumferential surface at the top of the nebulizing mechanism. One side of the mask main body connected to the nebulizing mechanism is provided with a connecting sleeve. The structure of this patent is simple, the layout is flexible, the volume is small and the operation is simple. When the ultrasonic nebulizer works, the mask main body can be fixed through the provided wearing ring without the need to hold it by hand. At the same time, the provided rotating shaft can adjust the angle of the annular belt. When used outdoors, the nebulizing device main body can be lifted for easy carrying and convenient drug administration to users; different models of mask main bodies can be replaced according to different users through the connecting sleeve, which is convenient for popularization and use.

[0004] However, in the prior art, the following problems exist:

[0005] When medical staff perform nebulizing treatment on patients, every time a patient is changed, the medicine needs to be re-added. And because the dosage of medicine required by different patients is different, when medical staff re-add the medicine each time, they also need to use measuring tools to measure the amount of added medicine, and the operation is relatively cumbersome, affecting the treatment efficiency. Summary of the Invention

[0006] The purpose of the present invention is to provide a drug delivery device for inhaled drugs to solve the above problems and overcome the defects of the prior art, as elaborated below.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] An administration device for an inhaled drug provided by the present invention includes a main body, on which a base and an ultrasonic stage are installed, and an atomization cup is installed on the ultrasonic stage; it further includes a medicine storage assembly for storing the medicine; a medicine dosing assembly for quantitatively dosing the medicine into the atomization cup; and a shaking assembly for periodically shaking the medicine in storage. The medicine storage assembly includes two mounting brackets, both of which are installed on the base. Mounting shafts are rotatably connected to the two mounting brackets respectively. An installation ring is connected between the two mounting shafts. The inner wall of the installation ring is connected with a medicine tank, and a telescopic tube is connected to the bottom of the medicine tank. The medicine dosing assembly includes a mounting cover installed on the top surface of the main body. A medicine injection tube penetrates and is connected to the left side of the mounting cover. A liquid inlet tube and a liquid outlet tube are installed at the bottom of the medicine injection tube. One end of the liquid inlet tube away from the medicine injection tube is connected to one end of the telescopic tube away from the medicine tank. A connection port is formed at the edge of the atomization cup, and one end of the liquid outlet tube away from the medicine injection tube is connected to the connection port of the atomization cup.

[0009] Preferably, a hollow shaft is rotatably connected through the mounting cover. A knob is rotatably connected to the front outer wall of the mounting cover. The knob is connected to the front end of the hollow shaft. A gear is connected to the outer wall of the hollow shaft. A rack is slidably connected to the outer wall of the medicine injection tube. The rack meshes with the gear. A piston rod penetrates and slides through the top of the medicine injection tube.

[0010] Preferably, a piston is provided at the bottom end of the piston rod. The piston of the piston rod is slidably connected to the inner wall of the medicine injection tube. The top end of the piston rod is connected to the rack. Check valves are respectively arranged in the telescopic tube, the liquid inlet tube and the liquid outlet tube.

[0011] Preferably, a scale ring is connected to the outer wall of the mounting cover. Dose scales are provided on the scale ring. The scale ring is located outside the knob. A pointer is provided on the knob. An observation window is provided on the medicine injection tube. Dose scales are provided at a position on the medicine injection tube close to the observation window.

[0012] Preferably, a ratchet ring is connected to the rear inner wall of the mounting cover. A spring winding ring is connected to the front side of the ratchet ring. Both the ratchet ring and the spring winding ring are located outside the hollow shaft. A spring is arranged between the inner wall of the spring winding ring and the outer wall of the hollow shaft. A square groove is arranged on the outer wall of the hollow shaft. A convex block is slidably connected in the square groove of the hollow shaft. An inner shaft is slidably connected to the inner wall of the hollow shaft. A connecting rod is hinged between the inner shaft and the convex block. A rotating cylinder is rotatably connected to the inner wall of the knob.

[0013] Preferably, an annular inclined groove is arranged on the inner wall of the rotating cylinder. One end of the inner shaft away from the connecting rod is located in the inner wall of the rotating cylinder. A sliding shaft is connected to the outer wall of the inner shaft. The sliding shaft is slidably connected to the annular inclined groove of the rotating cylinder. A turning handle is provided on the outer wall of the rotating cylinder.

[0014] Preferably, a plurality of pawls are rotatably mounted on the inner wall of the ratchet ring, the plurality of pawls are arranged in a circular array, a plurality of limit rods are arranged inside the ratchet ring, the plurality of pawls are respectively abutted against the plurality of limit rods of the ratchet ring, a leaf spring is arranged on the pawl, and the plurality of pawls are all located on the movement trajectory of the protrusion.

[0015] Preferably, the shaking assembly includes a sawtooth rod, which is slidably connected to the top inner wall of the mounting cover, and the sawtooth rod passes through the right side of the mounting cover when it moves. The left end of the sawtooth rod is hinged with a push-pull rod, and the end of the push-pull rod away from the sawtooth rod is hinged to the top of the rack, the outer walls of the two mounting shafts are respectively connected with bent rods, and a shift rod is connected between the two bent rods. The top surface of the base is connected with a support block, and the support block abuts against the lower left outer wall of the medicine tank. The outer wall of the base is connected with a spring seat, and an elastic block is connected to the spring seat through a spring, and the elastic block abuts against the lower right outer wall of the medicine tank.

[0016] Preferably, the bottom of the medicine tank is connected to a base plate via a spring, a side of the base plate close to the medicine tank is connected to a plurality of touch balls, an outer wall of the base plate is connected to two resistance rods, and two mounting frames are connected to arc blocks on one side close to the medicine tank, and the ends of the two resistance rods away from the base plate are in sliding contact with the two arc blocks respectively.

[0017] The beneficial effects are:

[0018] 1. The drug delivery device for inhaled drugs, through the setting of the drug storage component, enables medical staff to prepare and store a large amount of drugs at one time, and store them in the drug tank, which is convenient for continuous treatment; through the setting of the drug delivery component, the medical staff can pump the drugs in the drug tank into the drug injection tube by turning the knob, and the medical staff can control the rotation angle of the knob according to the dosage scale indicated by the pointer on the knob on the scale ring. After the medical staff releases the knob, the drugs in the drug injection tube are automatically transported to the nebulizer cup for this nebulization operation, which is convenient for the medical staff to flexibly adjust the dosage of each drug according to different patients. The operation is convenient, and the observation window on the drug injection tube is also convenient for observing the dosage and dosage of the drugs.

[0019] 2. The drug delivery device for inhaled drugs, through the cooperation of the rotating drum, the inner shaft, the connecting rod and the protrusion, enables the medical staff to rotate the rotating drum to realize the extension and retraction of the protrusion. When the protrusion shrinks into the square groove of the hollow shaft, the hollow shaft can be normally reset. When the protrusion protrudes a part of the way out of the square groove, the protrusion and a plurality of ratchets limit the hollow shaft, so that the hollow shaft cannot be reset temporarily, so that the medical staff can stop the drug addition process at any time after quantitatively extracting the drug, which is convenient for the medical staff to perform other operations temporarily. At the same time, it can also prevent the knob from being reset prematurely due to hand slipping when extracting the drug, thereby improving the flexibility and convenience in actual operation.

[0020] 3. The drug delivery device for inhalation type, through the setting of the shaking component, enables the medical staff to indirectly drive the medicine tank to shake for a period of time through two bent rods every time the medicine is added, so as to maintain the uniformity of the medicine in the medicine tank; through the setting of the bottom plate and multiple touch balls, the multiple touch balls can repeatedly impact the bottom of the medicine tank when the medicine tank shakes, causing the bottom of the medicine tank to vibrate, thereby further promoting the uniformity of the medicine in the medicine tank and preventing the medicine from precipitating. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is the overall structural schematic diagram of the present invention;

[0023] Figure 2 is the structural schematic diagram of the medicine storage component of the present invention;

[0024] Figure 3 is the structural schematic diagram of the medicine delivery component of the present invention;

[0025] Figure 4 is the structural schematic diagram of the medicine injection tube of the present invention;

[0026] Figure 5 is the structural schematic diagram of the rack of the present invention;

[0027] Figure 6 is the structural schematic diagram of the rotating cylinder of the present invention;

[0028] Figure 7 is the structural schematic diagram of the inner shaft of the present invention;

[0029] Figure 8 is the structural schematic diagram of the ratchet ring of the present invention;

[0030] Figure 9 is the structural schematic diagram of the scale ring of the present invention;

[0031] Figure 10 is the structural schematic diagram of the shaking component of the present invention;

[0032] Figure 11 is the structural schematic diagram of the lever of the present invention;

[0033] Figure 12 is the structural schematic diagram of the bottom plate of the present invention.

[0034] The description of the reference numerals in the drawings is as follows: 1. Main machine; 2. Base; 3. Medicine storage assembly; 31. Mounting frame; 32. Mounting shaft; 33. Mounting ring; 34. Medicine tank; 35. Telescopic tube; 4. Medicine dispensing assembly; 41. Mounting cover; 42. Hollow shaft; 43. Knob; 44. Gear; 45. Rack; 46. Medicine injection tube; 47. Piston rod; 48. Liquid inlet pipe; 49. Liquid outlet pipe; 410. Ratchet ring; 411. Ratchet pawl; 412. Spring winding ring; 413. Rotating cylinder; 414. Inner shaft; 415. Slide shaft; 416. Connecting rod; 417. Bump; 418. Scale ring; 419. Observation window; 5. Shaking assembly; 51. Push-pull rod; 52. Serrated rod; 53. Bent rod; 54. Poking rod; 55. Support block; 56. Spring seat; 57. Elastic block; 58. Base plate; 59. Touch ball; 510. Contact rod; 511. Arc-shaped block; 6. Ultrasonic table; 7. Atomizing cup. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts shall fall within the scope protected by the present invention.

[0036] Embodiment 1

[0037] Please refer to Figure 1 - Figure 12 , a drug delivery device for inhaled drugs, including a main machine 1, a base 2 and an ultrasonic table 6 are installed on the main machine 1, an atomizing cup 7 is installed on the ultrasonic table 6, an operation switch is arranged on the main machine 1, when the switch on the main machine 1 is started, the ultrasonic table 6 is started to atomize the medicine in the atomizing cup 7, a connector is arranged on the atomizing cup 7 for connecting a disposable breathing mask, and a patient wears the breathing mask for atomization treatment; it further includes a medicine storage assembly 3 for storing medicine; a medicine dispensing assembly 4 for quantitatively dispensing the medicine into the atomizing cup 7; a shaking assembly 5 for periodically shaking the medicine in storage; the medicine storage assembly 3 includes two mounting frames 31, both of the two mounting frames 31 are installed on the base 2, mounting shafts 32 are respectively rotatably connected to the two mounting frames 31, a mounting ring 33 is connected between the two mounting shafts 32, the inner wall of the mounting ring 33 is connected with a medicine tank 34, the bottom of the medicine tank 34 is connected with a telescopic tube 35, the telescopic tube 35 can enable the medicine tank 34 to have a certain movement space, a medicine adding port is arranged on the medicine tank 34, the medicine is added into the medicine tank 34 through the medicine adding port, the medicine tank 34 can be detached separately for cleaning and disinfection, through the arrangement of the medicine storage assembly 3, medical staff can prepare and store more medicine at one time and store it in the medicine tank 34, which is convenient for continuous treatment.

[0038] Furthermore, the drug delivery assembly 4 includes a mounting cover 41 which is mounted on the top surface of the main body 1. A medicine injection tube 46 is connected through the left side of the mounting cover 41. The bottom of the medicine injection tube 46 is provided with a liquid inlet tube 48 and a liquid outlet tube 49. One end of the liquid inlet tube 48 away from the medicine injection tube 46 is connected to one end of the telescopic tube 35 away from the medicine tank 34. The telescopic tube 35 and the liquid inlet tube 48 can be separated. A connection port is formed at the edge of the atomizing cup 7. One end of the liquid outlet tube 49 away from the medicine injection tube 46 is connected to the connection port of the atomizing cup 7. A hollow shaft 42 is rotatably connected through the mounting cover 41. A knob 43 is rotatably connected to the front outer wall of the mounting cover 41. The knob 43 is connected to the front end of the hollow shaft 42. When the knob 43 is rotated clockwise, the knob 43 drives the hollow shaft 42 to rotate when it rotates. A gear 44 is connected to the outer wall of the hollow shaft 42. A rack 45 is slidably connected to the outer wall of the medicine injection tube 46. The rack 45 meshes with the gear 44. A piston rod 47 is slidably connected through the top of the medicine injection tube 46. A piston is provided at the bottom end of the piston rod 47. The piston of the piston rod 47 is slidably connected to the inner wall of the medicine injection tube 46. The top end of the piston rod 47 is connected to the rack 45. The hollow shaft 42 drives the rack 45 to move upward through the gear 44. The rack 45 drives the piston rod 47 to move upward, so that when the piston at the bottom of the piston rod 47 moves upward, the medicine in the medicine tank 34 is pumped into the medicine injection tube 46 through the liquid inlet tube 48 and the telescopic tube 35. Check valves are respectively arranged in the telescopic tube 35, the liquid inlet tube 48 and the liquid outlet tube 49. The check valves in the telescopic tube 35, the liquid inlet tube 48 and the liquid outlet tube 49 enable the medicine to only flow in one direction and cannot flow back. A ratchet ring 410 is connected to the rear inner wall of the mounting cover 41. A spring winding ring 412 is connected to the front side of the ratchet ring 410. Both the ratchet ring 410 and the spring winding ring 412 are located outside the hollow shaft 42. A spring is arranged between the inner wall of the spring winding ring 412 and the outer wall of the hollow shaft 42. When the knob 43 is released, the hollow shaft 42 rotates counterclockwise and resets under the elastic force of the spring inside the spring winding ring 412. The piston rod 47 extrudes the medicine inside the medicine injection tube 46 through the piston, so that the medicine enters the atomizing cup 7 through the connection port at the edge of the atomizing cup 7 through the liquid outlet tube 49.

[0039] Furthermore, a scale ring 418 is connected to the outer wall of the installation cover 41. Dose scales are provided on the scale ring 418. The scale ring 418 is located outside the knob 43. A pointer is provided on the knob 43. An observation window 419 is provided on the medicine injection tube 46. Dose scales are provided on the medicine injection tube 46 near the observation window 419. The observation window 419 of the medicine injection tube 46 can observe the liquid level of the medicine in the medicine injection tube 46. By observing the dose scales on the medicine injection tube 46, the dose of the medicine in the medicine injection tube 46 can be seen. The dose scales on the scale ring 418 correspond to the dose scales on the medicine injection tube 46. When the knob 43 rotates, the pointer rotates and moves on the scale ring 418. The dose scale indicated by the pointer is consistent with the dose scale where the upper liquid level of the medicine in the medicine injection tube 46 is located. Since different patients require different doses of medicine, when operating, when the pointer of the knob 43 moves to the dose scale required for this treatment, at this time, the medicine in the medicine injection tube 46 also reaches the dose required for this treatment, which is convenient for medical staff to observe and control the dose of the medicine, enabling medical staff to complete the extraction of the medicine during the process of rotating the knob 43 to the specified dose scale. Through the setting of the medicine delivery assembly, medical staff can pump the medicine in the medicine tank into the medicine injection tube by rotating the knob. Medical staff can control the rotation angle of the knob according to the dose scale indicated by the pointer on the knob. After the medical staff releases the knob, the medicine in the medicine injection tube is automatically delivered to the atomization cup for this atomization operation, which is convenient for medical staff to flexibly adjust the dose of the medicine added each time according to different patients, with convenient operation. The observation window on the medicine injection tube also facilitates observing the dose of the medicine and the addition situation.

[0040] In addition, a square groove is provided on the outer wall of the hollow shaft 42. A convex block 417 is slidably connected in the square groove of the hollow shaft 42. The square groove of the hollow shaft 42 limits the convex block 417. The convex block 417 can only slide in the square groove along a direction perpendicular to the axis of the hollow shaft 42. An inner shaft 414 is slidably connected to the inner wall of the hollow shaft 42. A connecting rod 416 is hinged between the inner shaft 414 and the convex block 417. A rotating cylinder 413 is rotatably connected to the inner wall of the knob 43. An annular inclined groove is provided on the inner wall of the rotating cylinder 413. One end of the inner shaft 414 away from the connecting rod 416 is located in the inner wall of the rotating cylinder 413. A sliding shaft 415 is connected to the outer wall of the inner shaft 414. The sliding shaft 415 is slidably connected to the annular inclined groove of the rotating cylinder 413. A turning handle is provided on the outer wall of the rotating cylinder 413. When the rotating cylinder 413 rotates, it drives the sliding shaft 415 to move backward a certain distance through the annular inclined groove. The sliding shaft 415 drives the inner shaft 414 to move backward inside the hollow shaft 42. When the sliding shaft 415 moves backward, it drives the convex block 417 to move away from the hollow shaft 42 through the connecting rod 416. A plurality of ratchet claws 411 are rotatably installed on the inner wall of the ratchet ring 410. The plurality of ratchet claws 411 are arranged in a circumferential array. A plurality of limiting rods are provided inside the ratchet ring 410. The plurality of ratchet claws 411 are respectively in contact with the plurality of limiting rods of the ratchet ring 410. A leaf spring is provided on the ratchet claw 411. The plurality of ratchet claws 411 are all located on the movement track of the convex block 417. The ratchet claw 411 can only swing unidirectionally and reset through the elastic force of the leaf spring after swinging. The plurality of ratchet claws 411 can cooperate to limit the convex block 417 unidirectionally, so that when the convex block 417 contacts the ratchet claw 411, the hollow shaft 42 can only rotate clockwise and cannot rotate counterclockwise. When the staff rotates the rotating cylinder 413 to retract and reset the convex block 417, the hollow shaft 42 can rotate counterclockwise to reset. This enables medical staff to stop the process of adding medicine at any time by rotating the rotating cylinder 413 after twisting the knob 43 clockwise to complete the extraction of medicine, facilitating other temporary operations by medical staff. Moreover, when the convex block 417 extends and the knob 43 is rotated clockwise, it can prevent the knob 43 from resetting in advance due to hand slippage, improving the accuracy and flexibility of the operation; through the cooperation of the rotating cylinder 413, the inner shaft 414, the connecting rod 416 and the convex block 417, medical staff can rotate the rotating cylinder 413 to realize the expansion and contraction of the convex block 417. When the convex block 417 retracts into the square groove of the hollow shaft 42, the hollow shaft 42 can be normally reset. When a part of the convex block 417 protrudes out of the square groove, the convex block 417 and the plurality of ratchet claws 411 limit the hollow shaft 42, making the hollow shaft 42 temporarily unable to reset. This enables medical staff to stop the process of adding medicine at any time after quantitatively extracting medicine, facilitating other temporary operations by medical staff. At the same time, it can also prevent the knob 43 from resetting in advance due to hand slippage during the extraction of medicine, improving the flexibility and convenience in actual operation.

[0041] It should be noted that the shaking component 5 includes a serrated rod 52. The serrated rod 52 is slidably connected to the inner wall of the top of the mounting cover 41. When the serrated rod 52 moves, it penetrates through the right side of the mounting cover 41. The left end of the serrated rod 52 is hinged with a push-pull rod 51. One end of the push-pull rod 51 away from the serrated rod 52 is hinged to the top end of the rack 45. Bent rods 53 are respectively connected to the outer walls of the two mounting shafts 32. A lever 54 is connected between the two bent rods 53. A support block 55 is connected to the top surface of the base 2. The support block 55 abuts against the lower left outer wall of the medicine tank 34. A spring seat 56 is connected to the outer wall of the base 2. A resilient block 57 is connected to the spring seat 56 through a spring. The resilient block 57 abuts against the lower right outer wall of the medicine tank 34. In the normal state, the bottom of the medicine tank 34 is clamped between the support block 55 and the resilient block 57. When the serrated rod 52 moves, it contacts the lever 54 and drives the lever 54 to move up and down reciprocally. The lever 54 drives the two mounting shafts 32 to swing reciprocally through the two bent rods 53. The two mounting shafts 32 drive the mounting ring 33 and the medicine tank 34 to swing reciprocally, achieving the shaking effect. By shaking the medicine tank 34, the texture of the medicine inside it can be made more uniform, avoiding the preparation of too much medicine, which may cause precipitation and stratification during storage, thus affecting the treatment effect. Through the setting of the shaking component 5, every time a medical staff adds medicine, the lever 54 can indirectly drive the medicine tank 34 to shake for a period of time through the two bent rods 53, so as to maintain the uniformity of the medicine in the medicine tank 34.

[0042] It should be noted that the bottom of the medicine tank 34 is connected with a bottom plate 58 through a spring. A plurality of touch balls 59 are connected to the surface of the bottom plate 58 close to the medicine tank 34. Two abutting rods 510 are connected to the outer wall of the bottom plate 58. Arc-shaped blocks 511 are connected to one side of the two mounting frames 31 close to the medicine tank 34. The ends of the two abutting rods 510 away from the bottom plate 58 are respectively in sliding contact with the two arc-shaped blocks 511. The bottom surface of the arc-shaped block 511 is arc-shaped. When the two abutting rods 510 slide along the bottom surface of the arc-shaped block 511, they drive the bottom plate 58 to move away from the bottom of the medicine tank 34. When the two abutting rods 510 disengage from the two arc-shaped blocks 511, the bottom plate 58 rebounds upward under the elastic force of the spring. The plurality of touch balls 59 on the bottom plate 58 impact the bottom of the medicine tank 34, causing a certain degree of vibration at the bottom of the medicine tank 34. When the medicine tank 34 shakes and cooperates with the vibration at the bottom, the anti-precipitation effect can be further improved. Through the setting of the bottom plate 58 and the plurality of touch balls 59, the plurality of touch balls 59 can impact the bottom of the medicine tank 34 multiple times when the medicine tank 34 shakes, causing vibration at the bottom of the medicine tank 34, thereby further promoting the uniformity of the medicine in the medicine tank 34 and preventing the precipitation of the medicine.

[0043] With the above structure, the working principle of this case is as follows: a medicine adding port is provided on the medicine tank 34, and medicine is added into the medicine tank 34 through the medicine adding port. The medicine tank 34 can be detached separately for cleaning and disinfection. The telescopic tube 35 and the liquid inlet tube 48 can be separated. When administering medicine, the medical staff rotates the knob 43 clockwise. When the knob 43 rotates, it drives the hollow shaft 42 to rotate. The hollow shaft 42 drives the rack 45 to move upward through the gear 44. The rack 45 drives the piston rod 47 to move upward, so that when the piston at the bottom of the piston rod 47 moves upward, the medicine in the medicine tank 34 is pumped into the medicine injection tube 46 through the liquid inlet tube 48 and the telescopic tube 35. The liquid level of the medicine in the medicine injection tube 46 can be observed through the observation window 419 of the medicine injection tube 46. By observing the dose scale on the medicine injection tube 46, the dose of the medicine in the medicine injection tube 46 can be seen. The dose scale on the scale ring 418 corresponds to the dose scale on the medicine injection tube 46. When the knob 43 rotates, it drives the pointer to rotate, and the pointer moves on the scale ring 418. The dose scale indicated by the pointer is consistent with the dose scale where the upper liquid level of the medicine in the medicine injection tube 46 is located. Since different patients require different doses of medicine, when the medical staff operates, when the pointer of the knob 43 moves to the dose scale required for this treatment, at this time, the medicine in the medicine injection tube 46 also reaches the dose required for this treatment. At this time, release the knob 43, and the hollow shaft 42 rotates counterclockwise and resets under the elastic force of the internal spring of the spring ring 412. When the hollow shaft 42 rotates counterclockwise, it drives the rack 45 to move downward through the gear 44. The check valves in the telescopic tube 35, the liquid inlet tube 48 and the liquid outlet tube 49 enable the medicine to only flow in one direction and cannot flow back. When the rack 45 moves downward, it drives the piston rod 47 to move downward. The piston rod 47 squeezes the medicine inside the medicine injection tube 46 through the piston, so that the medicine enters the atomizing cup 7 through the liquid outlet tube 49 and the connection port on the edge of the atomizing cup 7. An operation switch is provided on the main machine 1. When the switch on the main machine 1 is started, the ultrasonic table 6 is started to atomize the medicine in the atomizing cup 7. A connector is provided on the atomizing cup 7 for connecting a disposable breathing mask, and the patient wears the breathing mask for atomization treatment. During the process of the medical staff rotating the knob 43 to the specified dose scale, the extraction of the medicine is completed. After releasing the knob 43, the medicine can be added to the atomizing cup 7, and the operation is convenient; through the setting of the medicine storage assembly 3, the medical staff can prepare and store more medicine at one time and store it in the medicine tank 34, which is convenient for continuous treatment; through the setting of the medicine administration assembly 4, the medical staff can pump the medicine in the medicine tank 34 into the medicine injection tube 46 by rotating the knob 43. The medical staff can control the rotation angle of the knob 43 according to the dose scale indicated by the pointer on the knob 43 on the scale ring 418. After the medical staff releases the knob 43, the medicine in the medicine injection tube 46 is automatically transported to the atomizing cup 7 for the current atomization operation, which is convenient for the medical staff to flexibly adjust the dose of the medicine added each time according to different patients, and the operation is convenient. The observation window 419 on the medicine injection tube 46 is also convenient for observing the dose of the medicine and the addition situation.

[0044] The handle on the outer wall of the rotary drum 413 is located outside the knob 43. The medical staff rotates the handle by 180 degrees, causing the rotary drum 413 to rotate by 180 degrees. When the rotary drum 413 rotates, it drives the sliding shaft 415 to move backward a certain distance through the annular inclined groove. The sliding shaft 415 drives the inner shaft 414 to move backward inside the hollow shaft 42. Since the square groove of the hollow shaft 42 limits the convex block 417, the convex block 417 can only slide in the square groove along the direction perpendicular to the axis of the hollow shaft 42. Therefore, when the sliding shaft 415 moves backward, the sliding shaft 415 drives the convex block 417 to move away from the hollow shaft 42 through the connecting rod 416. After the convex block 417 moves away from the hollow shaft 42, a part of the convex block 417 protrudes out of the square groove. The convex block 417 contacts multiple pawls 411 inside the ratchet ring 410. The multiple pawls 411 and the multiple limiting rods are arranged alternately. There is a limiting rod on each side of each pawl 411. The pawl 411 abuts against one limiting rod, and a leaf spring is connected between the pawl 411 and the limiting rod on the other side. Therefore, the pawl 411 can only swing unidirectionally and is reset by the elastic force of the leaf spring after swinging. When the convex block 417 rotates clockwise with the hollow shaft 42, the convex block 417 slides along the surfaces of the multiple pawls 411. During this process, the pawl 411 in contact with the convex block 417 swings along the moving direction of the convex block 417 and is reset by the leaf spring, without affecting the rotation process of the convex block 417 and the hollow shaft 42. When the medical staff releases the knob 43, a counterclockwise rotational force is generated on the convex block 417 and the hollow shaft 42. At this time, the convex block 417 gets stuck on one of the pawls 411, and this pawl 411 abuts against the limiting rod and cannot swing, causing the convex block 417 and the hollow shaft 42 to temporarily stop rotating, and the piston rod 47 stops moving downward; The medical staff rotates the rotary drum 413 counterclockwise by 180 degrees to reset the rotary drum 413. The rotary drum 413 drives the sliding shaft 415 and the inner shaft 414 to move forward and reset through the annular inclined groove. The inner shaft 414 drives the convex block 417 to move toward the hollow shaft 42 through the connecting rod 416, causing the convex block 417 to be reset into the square groove again. At this time, the convex block 417 does not contact the multiple pawls 411, and the hollow shaft 42 can rotate counterclockwise and reset normally. Through the setting of the convex block 417, after the medical staff twists the knob 43 clockwise to complete the extraction of the medicine, they can stop the process of adding medicine at any time by rotating the rotary drum 413, which is convenient for the medical staff to perform other operations temporarily. And when the convex block 417 extends, rotating the knob 43 clockwise can prevent the knob 43 from being reset in advance due to slippery hands, improving the accuracy and flexibility of the operation;Through the cooperation of the rotary drum 413, the inner shaft 414, the connecting rod 416 and the convex block 417, when the medical staff rotates the rotary drum 413, the telescopic movement of the convex block 417 can be realized. When the convex block 417 retracts into the square groove of the hollow shaft 42, the hollow shaft 42 can be normally reset. When a part of the convex block 417 protrudes outside the square groove, the convex block 417 and multiple pawls 411 limit the hollow shaft 42, so that the hollow shaft 42 cannot be reset temporarily. After the medical staff quantitatively extracts the medicine, the addition process of the medicine can be stopped at any time, which is convenient for the medical staff to perform other operations temporarily. At the same time, it can also prevent the knob 43 from being reset in advance due to slippery hands during the extraction of the medicine, improving the flexibility and convenience in actual operation.

[0045] Under normal conditions, the bottom of the medicine tank 34 is clamped between the support block 55 and the elastic block 57. When the rack 45 moves up, the push-pull rod 51 drives the sawtooth rod 52 to slide to the right on the top inner wall of the mounting cover 41. When the rack 45 moves down, the push-pull rod 51 drives the sawtooth rod 52 to slide to the left. When the sawtooth rod 52 moves, it contacts the lever 54. The sawtooth rod 52 is provided with a plurality of saw teeth. Since the medicine tank 34 and the mounting ring 33 rotate around the two mounting shafts 32, when one of the saw teeth of the sawtooth rod 52 contacts the lever 54, the saw teeth press the lever 54 downward, and the lever 54 drives the two mounting shafts 32 to rotate on the two mounting frames 31 through the two bent rods 53. When the two mounting shafts 32 rotate, they drive the medicine tank 34 and the mounting ring 33 to rotate, so that the medicine tank 34 The bottom of the medicine tank 34 swings to the right. Due to the elastic force of the spring between the elastic block 57 and the spring seat 56, the elastic block 57 always applies a leftward thrust to the right bottom of the medicine tank 34. When the lever 54 leaves the tip of the sawtooth, the elastic block 57 pushes the bottom of the medicine tank 34 to the left, causing the lever 54 to slide to the position between the bottom ends of the two sawtooths. In this process, the bottom of the medicine tank 34 swings to the left and resets, so that the left bottom of the medicine tank 34 abuts against the supporting block 55. Subsequently, the lever 54 slides on the next sawtooth and repeats the above steps, thereby achieving the effect of indirectly driving the medicine tank 34 to shake through the lever 54 when the sawtooth rod 52 moves. By shaking the medicine tank 34, the texture of the medicine inside it can be made more uniform, avoiding the configuration of a larger When the medicine tank 34 is shaken, the bottom plate 58 is driven to move synchronously by the spring. When the bottom plate 58 moves from right to left, the two abutting rods 510 on the bottom plate 58 contact the bottom surfaces of the two arc blocks 511. The bottom surfaces of the arc blocks 511 are set as arc surfaces. When the two abutting rods 510 slide along the bottom surfaces of the arc blocks 511, the bottom plate 58 is driven to move away from the bottom of the medicine tank 34. When the medicine tank 34 contacts the supporting block 55, the bottom plate 58 moves to the lowest point. When the medicine tank 34 and the bottom plate 58 swing to the right again, the two abutting rods 510 gradually separate from the two arc blocks 511, and the bottom plate 58 rebounds upwards due to the elastic force of the spring. During the process, the multiple touch balls 59 on the bottom plate 58 hit the bottom of the medicine tank 34, causing the bottom of the medicine tank 34 to vibrate to a certain extent. The vibration of the bottom of the medicine tank 34 when shaking can further enhance the anti-sedimentation effect. By setting the shaking assembly 5, the medical staff can use the lever 54 to indirectly drive the medicine tank 34 to shake for a period of time through the two bent rods 53 each time the medicine is added, thereby maintaining the uniformity of the medicine in the medicine tank 34. By setting the bottom plate 58 and the multiple touch balls 59, the multiple touch balls 59 can hit the bottom of the medicine tank 34 multiple times when the medicine tank 34 is shaken, causing the bottom of the medicine tank 34 to vibrate, thereby further promoting the uniformity of the medicine in the medicine tank 34 and preventing the precipitation of the medicine.

[0046] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claimed rights.

Claims

1. A drug delivery device for inhaled drugs, comprising a main unit (1), characterized in that: The host (1) is provided with a base (2) and an ultrasonic platform (6), and the ultrasonic platform (6) is provided with an atomizing cup (7); It also includes a medicine storage component (3) for storing medicine; A dosing assembly (4) for quantitatively dosing a medicine into the atomizing cup (7); A shaking assembly (5) for periodically shaking the stored medicine; The medicine storage assembly (3) comprises two mounting frames (31), the two mounting frames (31) are both mounted on the base (2), the two mounting frames (31) are rotatably connected with mounting shafts (32), a mounting ring (33) is connected between the two mounting shafts (32), the inner wall of the mounting ring (33) is connected with a medicine tank (34), and the bottom of the medicine tank (34) is connected with a telescopic tube (35); The dosing assembly (4) comprises a mounting cover (41), wherein the mounting cover (41) is mounted on the top surface of the main unit (1), a drug injection tube (46) is connected through the left side of the mounting cover (41), a liquid inlet tube (48) and a liquid outlet tube (49) are mounted at the bottom of the drug injection tube (46), an end of the liquid inlet tube (48) away from the drug injection tube (46) is connected to an end of the telescopic tube (35) away from the medicine tank (34), a connection port is provided on the edge of the atomizing cup (7), and an end of the liquid outlet tube (49) away from the drug injection tube (46) is connected to the connection port of the atomizing cup (7).

2. The drug delivery device for inhalation drugs according to claim 1, characterized in that: A hollow shaft (42) is rotatably connected to the mounting cover (41), a knob (43) is rotatably connected to the front outer wall of the mounting cover (41), the knob (43) is connected to the front end of the hollow shaft (42), the outer wall of the hollow shaft (42) is connected to a gear (44), the outer wall of the injection tube (46) is slidably connected to a rack (45), the rack (45) is meshed with the gear (44), and a piston rod (47) is slidably connected to the top of the injection tube (46).

3. The drug delivery device for inhalation drugs according to claim 2, characterized in that: A piston is provided at the bottom end of the piston rod (47), the piston of the piston rod (47) is slidably connected to the inner wall of the injection tube (46), the top end of the piston rod (47) is connected to the rack (45), and check valves are respectively provided in the telescopic tube (35), the liquid inlet pipe (48) and the liquid outlet pipe (49).

4. The drug delivery device for inhalation drugs according to claim 3, characterized in that: The outer wall of the mounting cover (41) is connected to a scale ring (418), and a dosage scale is arranged on the scale ring (418). The scale ring (418) is located outside the knob (43), and a pointer is arranged on the knob (43). The injection tube (46) is provided with an observation window (419), and a dosage scale is arranged on the injection tube (46) near the observation window (419).

5. The drug delivery device for inhalation drugs according to claim 4, characterized in that: The rear inner wall of the mounting cover (41) is connected to a ratchet ring (410), and the front side of the ratchet ring (410) is connected to a coil spring ring (412). Both the ratchet ring (410) and the coil spring ring (412) are located outside the hollow shaft (42). A coil spring is provided between the inner wall of the coil spring ring (412) and the outer wall of the hollow shaft (42). The outer wall of the hollow shaft (42) is provided with a square groove. A protrusion (417) is slidably connected in the square groove of the hollow shaft (42). The inner wall of the hollow shaft (42) is slidably connected to an inner shaft (414). A connecting rod (416) is hinged between the inner shaft (414) and the protrusion (417). The inner wall of the knob (43) is rotatably connected to a rotating cylinder (413).

6. The drug delivery device for inhalation drugs according to claim 5, characterized in that: The inner wall of the rotating cylinder (413) is provided with an annular bevel groove, one end of the inner shaft (414) away from the connecting rod (416) is located in the inner wall of the rotating cylinder (413), the outer wall of the inner shaft (414) is connected with a sliding shaft (415), the sliding shaft (415) is slidably connected to the annular bevel groove of the rotating cylinder (413), and the outer wall of the rotating cylinder (413) is provided with a turning handle.

7. The drug delivery device for inhalation drugs according to claim 6, characterized in that: The inner wall of the ratchet ring (410) is rotatably mounted with a plurality of ratchet pawls (411), which are arranged in a circular array. A plurality of limit rods are arranged inside the ratchet ring (410), and the plurality of ratchet pawls (411) are respectively abutted against the plurality of limit rods of the ratchet ring (410). A leaf spring is arranged on the ratchet pawl (411), and the plurality of ratchet pawls (411) are all located on the movement trajectory of the protrusion (417).

8. The drug delivery device for inhalation drugs according to claim 7, characterized in that: The shaking assembly (5) comprises a sawtooth rod (52), the sawtooth rod (52) is slidably connected to the top inner wall of the mounting cover (41), and the sawtooth rod (52) penetrates the right side of the mounting cover (41) when moving. The left end of the sawtooth rod (52) is hinged with a push-pull rod (51), and the end of the push-pull rod (51) away from the sawtooth rod (52) is hinged to the top of the rack (45). The outer walls of the two mounting shafts (32) are respectively connected There is a bent rod (53), a lever (54) is connected between the two bent rods (53), a support block (55) is connected to the top surface of the base (2), the support block (55) abuts against the lower left outer wall of the medicine tank (34), the outer wall of the base (2) is connected to a spring seat (56), the spring seat (56) is connected to an elastic block (57) via a spring, and the elastic block (57) abuts against the lower right outer wall of the medicine tank (34).

9. The drug delivery device for inhalation drugs according to claim 8, characterized in that: The bottom of the medicine tank (34) is connected to a bottom plate (58) via a spring, a side of the bottom plate (58) close to the medicine tank (34) is connected to a plurality of contact balls (59), an outer wall of the bottom plate (58) is connected to two abutment rods (510), a side of the two mounting frames (31) close to the medicine tank (34) is connected to an arc surface block (511), and ends of the two abutment rods (510) away from the bottom plate (58) are in sliding contact with the two arc surface blocks (511) respectively.

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