Medical atomizer capable of preventing liquid medicine from being wasted

Abstract

The invention discloses a medical nebulizer capable of preventing liquid medicine waste, which belongs to the field of medical instruments, is used for nebulization of a patient, can prevent liquid medicine waste, and comprises a medicine mist channel assembly, a liquid medicine bin, a single-piece one-way valve, a liquid medicine bin cover, a Venturi tube and an umbrella-shaped retaining cap. The atomizing channel assembly is composed of a mouthpiece, a corrugated pipe and an atomizing cup shell, a single-piece one-way valve is embedded in the mouthpiece, a vent hole is formed in the atomizing cup shell, a medical waterproof breathable film is attached to the inner wall of the atomizing cup shell, and a sleeve is arranged on the outer wall of the atomizing cup shell in a sleeved mode and used for closing or opening or adjusting the air amount. The atomizing cup shell is provided with internal threads connected with the liquid medicine bin. The liquid medicine bin is provided with a liquid medicine opening which is provided with an opening plug. And the upper port of the liquid medicine conduit is provided with external threads which are in threaded connection with the upper end cover of the liquid medicine bin. And the upper end cover of the liquid medicine bin is inserted with the umbrella-shaped blocking cap above the upper end cover. And the venturi tube is arranged in the liquid medicine conduit.

Description

[0001] The technology of the invention belongs to the field of medical devices, and specifically relates to a medical atomizer for preventing liquid medicine from being wasted. Background Art

[0002] With the continuous development of medical technology, the use of drug atomization to treat respiratory diseases has become an indispensable technical means. The quality of atomization equipment directly affects the treatment effect. In the current atomization treatment, gas compression atomization is the mainstream, but its disadvantages are: because the drug liquid and drug mist are mixed in one space, the medicine cup is mostly handheld, and the tilt angle of the medicine cup is slightly larger when used, and the drug liquid leaks out from the mist volume adjustment port or enters the oral cavity from the mouthpiece. In addition, due to the imperfect existing drug atomization technology, the amount of atomized drug discharged from the mist volume adjustment port or the mouthpiece accounts for as much as 50% of the total amount. The reason is that during the patient's inhalation and exhalation cycle, the atomization cup continuously produces drug mist, and the patient only uses drug mist half of the time when completing a breathing cycle, and the drug mist produced in the other half of the time is discharged into the air or filtered out, which not only seriously wastes drug resources, but also affects the treatment effect.

[0003] In order to solve the shortcomings of the prior art, the present invention provides a medical nebulizer with a simple structure, easy to use, more suitable for disposable use, easy to process and produce, and capable of adjusting the amount of medicine liquid and preventing the leakage of medicine liquid and medicine mist. The medical nebulizer is characterized in that a separate medicine liquid tank with controllable medicine amount is set up, and the effect of the air pressure difference inside and outside the medicine liquid tank is utilized to control the medicine amount and prevent leakage; a medical waterproof and breathable membrane which is different from the filtering material used in the prior art is used, and the functional characteristics of the waterproof and breathable membrane are utilized to block the medicine liquid particles in the medicine mist to be discharged in the nebulizer cup for continued use instead of filtering them out, thereby solving the problem of serious waste of medicine liquid and greatly improving the treatment effect. Summary of the invention

[0004] The present invention discloses a medical nebulizer for preventing liquid medicine from being wasted, comprising a medicine mist channel assembly, which is composed of a mouthpiece, a bellows, and an atomizer cup shell, which are three-in-one and are synthesized at one time. The mouthpiece is embedded with a single-piece one-way valve. An internal thread is provided at the edge of the atomizer cup shell, a plurality of through holes are provided on the atomizer cup shell, a medical waterproof and breathable membrane is attached to the inner wall of the shell, and a sleeve is sleeved on the shell, the atomizer cup shell is tightly combined with the sleeve thereon and can rotate, and can be closed or opened or the gas volume can be adjusted.

[0005] There is a liquid medicine bin under the atomizer cup shell, and the upper port of the liquid medicine bin is provided with an external thread connected to the atomizer cup shell. The outer wall of the liquid medicine bin is provided with a liquid medicine port, and an air inlet is provided on the mouth wall of the liquid medicine port. The liquid medicine port is blocked with a hollow mouth plug, and a medical waterproof and breathable membrane is attached to the inner port of the liquid medicine port of the hollow mouth plug to prevent liquid medicine from leaking out; the hollow mouth plug is blocked with a circular baffle on the port outside the liquid medicine port. The hollow mouth plug wall is provided with an air inlet corresponding to the air inlet of the liquid medicine port wall, which is used to adjust the air intake in the liquid medicine bin. The mouth wall of the liquid medicine port and the hollow mouth plug are provided with marking lines to observe the air intake.

[0006] There is a liquid medicine bin under the atomizer cup shell, and the upper port of the liquid medicine bin is provided with an external thread connected to the atomizer cup shell. The outer wall of the liquid medicine bin is provided with a liquid medicine port, and an air inlet is provided on the mouth wall of the liquid medicine port. The liquid medicine port is blocked with a hollow mouth plug, and a medical waterproof and breathable membrane is attached to the inner port of the liquid medicine port of the hollow mouth plug to prevent liquid medicine from leaking out; the hollow mouth plug is blocked with a circular baffle on the port outside the liquid medicine port. The hollow mouth plug wall is provided with an air inlet corresponding to the air inlet of the liquid medicine port wall, which is used to adjust the air intake in the liquid medicine bin. The mouth wall of the liquid medicine port and the hollow mouth plug are provided with marking lines to observe the air intake.

[0007] The hollow liquid medicine conduit has a plurality of through holes around the tube wall at the bottom end in the liquid medicine bin, serving as a passage for the liquid medicine to enter the hollow liquid medicine conduit from the liquid medicine bin.

[0008] The upper port of the drug liquid conduit is provided with an external thread, and the inner diameter thereof is a small hole with a variable diameter.

[0009] The upper port of the medicine liquid warehouse is sealed and combined with the upper end cover of the medicine liquid warehouse. The end cover of the medicine liquid warehouse is in a funnel shape, with a larger diameter at the top and a smaller diameter at the bottom. The small diameter port is provided with an internal thread and is threadedly connected with the hollow medicine liquid conduit in the medicine liquid warehouse, which plays a role in tightening and positioning the sealing of the port of the medicine liquid warehouse and the end cover of the medicine liquid warehouse.

[0010] A medicine liquid impact plate is arranged on the medicine liquid bin end cover, and an umbrella-shaped baffle cap is arranged on the medicine liquid impact plate. The two are plugged together, and large-particle medicine mist is collected by the umbrella-shaped baffle cap and returned to the atomization port for re-atomization. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an exploded view of the present invention.

[0012] Figure 2 For the present invention Figure 1 Partial enlarged image.

[0013] Figure 3 For the present invention Figure 1 or Figure 2 Schematic diagram of the internal structure of Chinese medicine liquid tank-4.

[0014] Figure 4 For the present invention Figure 1 or Figure 2 Schematic diagram of the upper cover structure of the Chinese medicine liquid tank.

[0015] Figure 5 It is a schematic diagram of the open state of the single-piece one-way valve-2 of the present invention.

[0016] Figure 6 For the present invention Figure 3 A cross-sectional view of the Chinese medicine liquid conduit-7 in the medicine liquid chamber-4.

[0017] In the figure, 1-medicine mist channel assembly; 11-mouthpiece; 12-bellows; 13-atomizer cup shell; 2-single-piece one-way valve; 3-casing; 4-medicine liquid tank; 41-medicine liquid port; 5-Venturi tube; 6-hollow mouth plug; 7-medicine liquid conduit; 8-upper end cover of the medicine liquid tank; 81-impact plate; 82-small-diameter upper end cover of the medicine liquid tank; 9-umbrella-shaped baffle cap; 10-tail pipe. DETAILED DESCRIPTION

[0018] In order to explain the specific structure of the embodiment of the present invention in more detail, the function of each component, the relationship between each component, and the working principle, further details are given in conjunction with the accompanying drawings of this specification.

[0019] The words "upper", "lower", "inner", "outer", "bottom of mouth" and the like used in the present embodiment refer to the corresponding positional relationship between the various components when the present embodiment is working in a complete state.

[0020] The medical nebulizer for preventing waste of liquid medicine comprises a medicine mist channel assembly-1, a single-piece one-way valve-2, a medicine liquid bin-4, and a venturi tube-5. The medicine mist channel assembly-1 is composed of a mouthpiece-11, a bellows-12, and an atomizing cup shell-13. The three are integrated into one and synthesized at one time. The advantage is that it is easy to process and use. The single-piece one-way valve-2 is embedded in the mouthpiece-11 to prevent the patient's saliva and exhaust gas from entering the nebulizer during use.

[0021] The bellows 12 can be lengthened when in use to increase the storage capacity of the medicine mist, and the angle can also be adjusted in multiple directions to meet the needs of users in different body positions.

[0022] The atomizer cup shell 13 is provided with a plurality of ventilation holes penetrating the body wall thereof, and a medical waterproof breathable membrane is attached to the inner wall of the atomizer cup shell 13. The sleeve 3 is sleeved on the atomizer cup shell 13 and can rotate to close or open or adjust the gas volume.

[0023] When the patient does not use a mask for atomization (the mask is an additional item and will not be described here), the sleeve-3 on the atomizer cup housing-13 is in an open state. When the patient is in the inhalation state, the atomized gas stored in the atomization channel cannot meet the requirements, and the outside air enters the atomizer cup through the small holes in the atomizer cup housing-13 for replenishment. When the patient is in the exhalation state, if the atomizer cup is saturated with gas, the gas in the atomizer cup is discharged through the small holes on the atomizer cup housing. The liquid medicine particles in the atomized gas are blocked in the atomizer cup-13 for continued use because they are much larger than the aperture of the waterproof breathable membrane, instead of being filtered out.

[0024] When the patient needs to use the nebulizer mask, the sleeve-3 can be closed. At this time, the air pressure in the nebulizer channel assembly-1 increases to blow open the single-piece one-way valve-2 in the mouthpiece-11, and the nebulizer gas enters the nebulizer mask for the patient to use.

[0025] The upper end of the medicine liquid warehouse-4 is provided with an external thread connected with the thread of the atomizer cup shell-13, the medicine liquid warehouse-4 is provided with a medicine liquid port-41, the wall of the medicine liquid port-41 is provided with a vent, a hollow port plug-6 is inserted into the medicine liquid port-41, the hollow port plug-6 is hollow, and a medical waterproof breathable membrane is attached to its inner port to prevent the leakage of the medicine liquid and ensure air circulation. The outer end of the hollow port plug-6 is blocked with a circular baffle, and the hollow port plug-6 is provided with an air inlet corresponding to the air inlet on the wall of the medicine liquid port-41. The air intake of the medicine liquid warehouse is adjusted by rotating the hollow medicine liquid port plug to control the output of the medicine liquid, so as to achieve the purpose of controlling the medicine liquid.

[0026] The bottom of the liquid medicine bin-4 is funnel-shaped, which is convenient for collecting liquid medicine. A hollow liquid medicine conduit-7 is arranged in the liquid medicine bin, which runs through the bottom of the liquid medicine bin-4 and is coaxial with the liquid medicine bin. The part extending from the bottom of the liquid medicine bin-4 is provided with an internal thread. The venturi tube-5 is placed in the hollow liquid medicine conduit-7, and a gap is left between the two. The venturi tube-5 is provided with an external thread and is threadedly connected with the liquid medicine conduit-7 extending from the bottom of the liquid medicine bin-4.

[0027] The liquid medicine conduit-7 in the liquid medicine bin-4 has a plurality of through holes on the wall of the liquid medicine conduit-7 at the junction with the bottom of the liquid medicine bin, which serve as a passage for the liquid medicine to enter the liquid medicine conduit-7. The outlet at the upper end of the liquid medicine conduit-7 is a small hole with a reduced diameter, and the compressed gas connected to the venturi tube-5 carries the liquid medicine through the small hole with a reduced diameter and enters the atomizing cup. The upper end of the liquid medicine conduit-7 has an external thread.

[0028] The upper end cover-8 of the liquid medicine bin is in a funnel shape. The large diameter is facing upward, and the small diameter-82 at the lower position has an internal thread and is threadedly connected with the liquid medicine conduit-7. The upper end cover-8 of the liquid medicine bin is sealed and combined with the edge of the liquid medicine bin-4.

[0029] An impact plate 81 is arranged on the upper end cover 8 of the liquid medicine bin. The umbrella-shaped cap 9 is plugged into the impact plate 81. The umbrella-shaped cap can collect large particles of liquid medicine and send them back to the bottom of the atomizing cup for re-atomization, thereby improving the quality of the atomized gas.

[0030] The venturi tail pipe-10 is connected to an external gas source. Working principle:

[0031] Open the medicine liquid port plug-6 and pour the medicine liquid into the medicine liquid bin, close the medicine liquid port plug, connect the gas source, rotate the medicine liquid port plug-6 to the required position, and the compressed gas in the venturi tube-5 quickly enters the atomization chamber. Due to the Venturi effect, negative pressure is formed in the medicine liquid conduit. The medicine liquid in the medicine liquid bin-4 enters the medicine liquid conduit-7 through the small hole channel at the lower end of the medicine liquid conduit-7, and enters the atomization chamber with the gas. The fast gas atomizes the medicine liquid under the impact of the impact plate-81 to form medicine mist.

[0032] The air intake is controlled by adjusting the mouth plug-6 of the liquid medicine port-41, thereby adjusting the positive and negative pressure difference between the liquid medicine chamber-4 and the liquid medicine conduit-7 to determine the liquid medicine output.

[0033] When the patient does not need an atomizer mask, the sleeve-3 on the atomizer cup shell-13 is in an open state, and the single-piece one-way valve on the mouthpiece-11 is opened during the patient's inhalation process, and the drug mist is inhaled into the patient's body. At this time, if the patient's lung capacity is large and the amount of stored drug mist cannot meet the demand, the outside air enters the atomizer cup through the small holes on the atomizer cup shell for replenishment. When the patient is in the process of exhalation, the atomizer cup continuously produces atomized gas. When the drug mist gas in the atomizer cup is in a saturated state, the gas is discharged from the small holes in the atomizer cup shell. Because the drug liquid particles are much larger than the aperture of the medical waterproof breathable membrane, they are blocked in the atomizer cup for continued use instead of being filtered out.

[0034] When the patient needs to use the nebulizer mask, the sleeve-3 on the nebulizer cup shell-13 is closed. At this time, the pressure in the nebulizer channel increases, and the single-piece one-way valve-2 in the mouthpiece-11 is blown open, and the nebulized gas enters the nebulizer mask for the patient to use.

[0035] This embodiment is only one of the various embodiments of the present invention. It is intended to develop and produce, and its structural shape takes into account the technical advantages of the production link. Any improvements made on the basis of this technical solution without creative work by those skilled in the art will all fall within the scope of protection of the present invention.

[0036] After the present invention is realized, the waste of liquid medicine can be prevented, which will bring considerable economic benefits to the society.

Claims

1. A medical nebulizer for preventing liquid medicine from being wasted, comprising a nebulization channel assembly-1, a liquid medicine chamber-4, a venturi tube-5, characterized in that The medicine mist channel assembly -1 is composed of a mouthpiece -11, a bellows -12, and an atomizer cup shell -13 and is synthesized at one time. A single-piece one-way valve -2 is embedded in the mouthpiece -11. An internal thread is provided at the lower end of the atomizer cup shell -13. A vent is provided on the atomizer cup shell, and a medical waterproof and breathable membrane is attached to the inner wall of the shell. A sleeve -3 is provided on the atomizer cup shell -13. An external thread is provided at the upper end of the medicine liquid tank -4 to connect with the atomizer cup shell -13. A medicine liquid port -41 is provided on the medicine liquid tank shell. A hollow mouth plug -6 is provided in the medicine liquid port -41, and is plugged with and rotatable to the medicine liquid port -41. The bottom end of the medicine liquid tank -4 is funnel-shaped. A hollow medicine liquid conduit-7 is arranged in the medicine liquid warehouse, and a small hole channel is opened on the bottom tube wall of the hollow medicine liquid conduit-7. The hollow medicine liquid conduit-7 has an external thread at the medicine liquid outlet. The upper end cover-8 of the medicine liquid warehouse is funnel-shaped, with a large mouth facing upward and a small mouth facing downward, and the small diameter has an internal thread and is threadedly connected with the hollow medicine liquid conduit-7. The upper port of the medicine liquid warehouse-4 is sealed and combined with the upper end cover-8 of the medicine liquid warehouse. The upper end cover-8 of the medicine liquid warehouse is provided with a medicine liquid impact plate-81, and an umbrella-shaped stop cap-9 is inserted above the impact plate-81. The venturi tube-5 is inserted in the hollow medicine liquid conduit-7 with a gap between the two. The venturi tube-5 is provided with an external thread and is threadedly connected with the medicine liquid conduit-7 extending out of the bottom of the medicine liquid warehouse, and the venturi tube tail pipe-10 is connected to the air source.

2. A medical nebulizer for preventing liquid medicine from being wasted according to claim 1, characterized in that The waterproof and breathable membrane attached to the atomizer cup shell is a medical waterproof and breathable membrane.

3. A medical nebulizer for preventing liquid medicine from being wasted according to claim 1 or claim 2, characterized in that The sleeve-3 sleeved on the atomizer cup housing-13 is rotatable and can adjust the amount of air in the atomizer cup.

4. A medical nebulizer for preventing liquid medicine from being wasted according to claim 1, characterized in that The medicine liquid port 41 is provided with an air inlet hole on its port wall.

5. A medical nebulizer for preventing liquid medicine from being wasted according to claim 1, characterized in that The hollow medicine liquid port plug-6 has a medical waterproof and breathable membrane attached to the port at one end thereof extending into the medicine liquid port.

6. A medical nebulizer for preventing liquid medicine from being wasted according to claim 1 or claim 5, characterized in that The hollow medicine liquid mouth plug-6 has a small hole on its hollow tube wall.

7. A medical nebulizer for preventing liquid medicine from being wasted according to claim 1, characterized in that The bellows is retractable.

8. A medical nebulizer for preventing liquid medicine from being wasted according to claim 1, claim 5, claim 6, characterized in that The hollow medicine liquid port plug-6 is plugged into and matched with the medicine liquid port-41 and can rotate, and the air intake volume can be adjusted.

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