Spray head for medicine sprayer for respiratory medicine department and medicine sprayer

Abstract

The utility model discloses a spray head for a medicine sprayer for respiratory medicine, which comprises a catheter, an atomizing liquid spraying hole is arranged at the front end of the catheter, a plurality of lattice holes distributed around the atomizing liquid spraying hole are arranged at the rear part of the atomizing liquid spraying hole, a conical pad is arranged at the rear end of the lattice holes, the outer cone angle of the conical pad is larger than the inner cone angle, and the conical pad is formed by a plurality of fan-shaped air cushions which are tightly attached and converged at the tip end. And the fan-shaped air cushion is fixedly connected with the liquid guide pipe. The front part of the liquid guide pipe is provided with a return pipe which is fixedly connected, the return pipe sleeves the grid holes and the conical pad, and the return pipe and the liquid guide pipe form a gap with two closed ends. According to the sprayer for the medicine sprayer for the respiratory medicine department and the medicine sprayer, the conical pad is ingenious in design, the inclined face makes contact with front impact of liquid medicine, the material is soft and elastic, the center is easy to open, power consumption for spraying the liquid medicine is small, and therefore the spraying effect is not obviously influenced, the liquid guide pipe is automatically closed after medicine spraying to prevent backflow, and residual liquid medicine leaks from grid holes to be collected; and the residual liquid guide pipe is prevented from being blocked, and high practical value and popularization value are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzles and sprayers for respiratory medicine sprayers, and specifically refers to a nozzle and a sprayer for respiratory medicine sprayers. Background Technique

[0002] A sprayer is a medical device commonly used in clinical respiratory medicine to spray drugs for patients. It can directly spray drugs on the diseased part, and has the advantages of better drug absorption and convenient medication compared with oral administration and intravenous administration. Many of the drugs sprayed by existing respiratory medicine sprayers are highly viscous drugs. On the one hand, the sprayed drugs are prone to backflow and contaminate the drugs in the sprayer. On the other hand, they are prone to remain in the spraying tube, resulting in tube blockage. For example, the utility model CN204951863U introduces a sprayer for preventing drug backflow, including a liquid guide tube and a valve body. The valve body is connected to the liquid guide tube through a liquid inlet hole, and a core body for controlling the opening and closing of the liquid inlet hole is arranged in the valve body. The core body is connected to a return spring. Since the core body is a solid sphere, it relies on the positive linear pressing of the return spring against the liquid guide tube to achieve the function of blocking and preventing backflow. However, this design also directly blocks the spraying of the liquid medicine head-on, causing a significant attenuation of the power of the liquid medicine after being directly blocked by the front of the solid sphere, significantly affecting the spraying effect, and is also prone to remain in the tube and cause blockage. Content of the Utility Model

[0003] The purpose of the utility model is to provide a nozzle and a sprayer for respiratory medicine sprayers to solve the problems raised in the above background technique.

[0004] To solve the above technical problems, the utility model provides the following technical solutions:

[0005] A nozzle for a respiratory medicine sprayer of the utility model includes a liquid guide tube. The front end of the liquid guide tube is provided with an atomizing liquid spraying hole. A number of grid holes are distributed around the rear of the atomizing liquid spraying hole. A conical pad is arranged at the rear end of the grid holes. The outer cone angle of the conical pad is greater than the inner cone angle. The conical pad is formed by several fan-shaped air cushions closely attached and converging at the tip. The fan-shaped air cushions are fixedly connected to the liquid guide tube.

[0006] As an improvement, a fixed-connected return tube is arranged at the front part of the liquid guide tube. The return tube sleeves the grid holes and the conical pad and the front end is flush with the liquid guide tube. The return tube and the liquid guide tube form a closed interval at both ends. A rubber bladder is arranged at the lower part of the rear end of the return tube. The rubber bladder is communicated with the interval.

[0007] As an improvement, the return tube sleeves at least half of the liquid guide tube.

[0008] As an improvement, the grid holes are 5-20 millimeters long.

[0009] As an improvement, there are three fan-shaped air cushions.

[0010] As an improvement, the sector air cushion is made of silicone material.

[0011] A nebulizer for respiratory medicine, including a nozzle for a nebulizer for respiratory medicine, is characterized in that: it further includes a medicine bottle, the upper end of the medicine bottle is provided with a presser, the presser is fixedly connected to the rear end of a liquid guide tube, and the liquid guide tube is communicated with the medicine bottle.

[0012] The advantages of the present utility model compared with the prior art are as follows: The medicine bottle stores the liquid medicine, the liquid guide tube faces the oral cavity, and the presser is pressed to perform the spraying operation. The liquid medicine is ejected outward through the liquid guide tube to impact the conical pad, and the sector air cushion is pushed open from the tip, and then the liquid medicine continues to move forward and is atomized and ejected from the atomizing liquid spraying holes. After the spraying operation, the tip of the sector air cushion returns to its position and closely adheres adjacent to each other, and the conical pad closes the liquid guide tube to play a role in preventing backflow. The residual liquid medicine at the rear of the atomizing liquid spraying holes leaks through the grid holes and flows back through the interval into the rubber bag to be collected, avoiding blockage.

[0013] The nozzle and nebulizer for respiratory medicine of the present utility model have a clever design of the conical pad. It contacts the front impact of the liquid medicine with an inclined surface, the material is soft and elastic and the center is easily opened, and the power consumption for the ejection of the liquid medicine is very small, so there is no obvious impact on the spraying effect. It automatically closes the liquid guide tube to prevent backflow after spraying, and the residual liquid medicine leaks through the grid holes and is collected, avoiding blockage in the liquid guide tube, and has high practical value and popularization value. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following listed drawings are only some structural schematic diagrams of the present utility model, rather than all of them.

[0015] Figure 1 It is a structural schematic diagram of a nebulizer for respiratory medicine of the present utility model.

[0016] Figure 2 It is a side view of a nebulizer for respiratory medicine of the present utility model.

[0017] Figure 3 It is a cross-sectional view of the nozzle of a nebulizer for respiratory medicine of the present utility model.

[0018] Figure 4 It is a structural schematic diagram of the conical pad of the nozzle of a nebulizer for respiratory medicine of the present utility model.

[0019] Reference Signs:

[0020] Liquid guide tube 1; Grid holes 11; Atomizing liquid spraying holes 12; Conical pad 13; Sector air cushion 14;

[0021] Return pipe 2; Spacing 21; Rubber bladder 22;

[0022] Medicine bottle 3; Presser 31; Detailed implementation method

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. 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 embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] This embodiment combines the attached Figures 1 to 4 to elaborate in detail on a nozzle and a medicine sprayer for a respiratory medicine sprayer.

[0025] A nozzle for a respiratory medicine sprayer in this embodiment includes a liquid guide pipe 1. A atomizing liquid spray hole 12 is provided at the front end of the liquid guide pipe 1. A plurality of grid holes 11 are distributed around the rear of the atomizing liquid spray hole 12. A conical pad 13 is provided at the rear end of the grid holes 11. The outer cone angle of the conical pad 13 is greater than the inner cone angle. The conical pad 13 is formed by a plurality of fan-shaped air cushions 14 closely attached and converging at the tip. The fan-shaped air cushions 14 are fixedly connected to the liquid guide pipe 1.

[0026] A fixedly connected return pipe 2 is provided at the front part of the liquid guide pipe 1. The return pipe 2 sleeved the grid holes 11, the conical pad 13 and its front end is flush with the liquid guide pipe 1. The return pipe 2 and the liquid guide pipe 1 form a closed interval 21 at both ends. A rubber bladder 22 is provided at the lower part of the rear end of the return pipe 2. The rubber bladder 22 communicates with the interval 21.

[0027] The return pipe 2 sleeved at least half of the liquid guide pipe 1.

[0028] The grid holes 11 are 5-20 millimeters long.

[0029] There are three fan-shaped air cushions 14.

[0030] The fan-shaped air cushions 14 are made of silica gel.

[0031] During specific implementation, the liquid medicine is sprayed outward through the liquid guide pipe 1 to impact the conical pad 13. The fan-shaped air cushions 14 are pushed open starting from the tip. Then the liquid medicine continues to move forward and is atomized and sprayed out from the atomizing liquid spray hole 12. After the medicine spraying operation, the tips of the fan-shaped air cushions 14 return to their positions and are closely attached adjacent to each other. The conical pad 13 closes the liquid guide pipe 1 to play a role in preventing backflow. The residual liquid medicine at the rear of the atomizing liquid spray hole 12 leaks through the grid holes 11 and returns to the rubber bladder 22 through the interval 21 to be collected, avoiding blockage.

[0032] A nebulizer for respiratory medicine, including a nozzle for a nebulizer for respiratory medicine, characterized in that: it further includes a medicine bottle 3, the upper end of the medicine bottle 3 is provided with a presser 31, the presser 31 is fixedly connected to the rear end of the liquid guide tube 1, and the liquid guide tube 1 is communicated with the medicine bottle 3.

[0033] In specific implementation, the medicine bottle 3 stores the liquid medicine, the liquid guide tube 1 faces the oral cavity, and the presser 31 is pressed to perform the spraying operation.

[0034] The above description of the present invention and its implementation manners is not restrictive, and the actual protection scope is not limited thereto. Any changes or substitutions that can be easily conceived by any person skilled in the art within the technical scope disclosed by the present invention should 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 claims.

Claims

1. A nozzle for a nebulizer in the department of respiratory medicine, characterized in that: It includes a liquid guiding tube (1). A liquid atomizing spray hole (12) is provided at the front end of the liquid guiding tube (1). A number of grid holes (11) are distributed around the rear of the liquid atomizing spray hole (12). A conical pad (13) is provided at the rear end of the grid holes (11). The outer cone angle of the conical pad (13) is greater than the inner cone angle. The conical pad (13) is formed by several fan-shaped air cushions (14) closely attached and converging at the tip. The fan-shaped air cushions (14) are fixedly connected to the liquid guiding tube (1).

2. The nozzle of a nebulizer for respiratory medicine according to claim 1, wherein: A reflux tube (2) fixedly connected is provided at the front part of the liquid guiding tube (1). The reflux tube (2) sleeves the grid holes (11) and the conical pad (13), and its front end is flush with the liquid guiding tube (1). The reflux tube (2) and the liquid guiding tube (1) form a closed interval (21) at both ends. A rubber bladder (22) is provided at the lower part of the rear end of the reflux tube (2). The rubber bladder (22) communicates with the interval (21).

3. The nozzle of a nebulizer for the department of respiratory medicine according to claim 2, characterized in that: The reflux tube (2) sleeves at least half of the liquid guiding tube (1).

4. The nozzle of a nebulizer for respiratory medicine according to claim 1 or 2, characterized in that: The grid holes (11) are 5-20 millimeters long.

5. The nozzle of a nebulizer for the department of respiratory medicine according to claim 1, characterized in that: There are three fan-shaped air cushions (14).

6. The nozzle of a nebulizer for respiratory medicine according to claim 1 or 5, characterized in that: The fan-shaped air cushions (14) are made of silica gel material.

7. A nebulizer for the department of respiratory medicine, comprising a nozzle for a nebulizer for the department of respiratory medicine according to claim 2 or 3, characterized in that: It further includes a medicine bottle (3). A presser (31) is provided at the upper end of the medicine bottle (3). The presser (31) is fixedly connected to the rear end of the liquid guiding tube (1). The liquid guiding tube (1) communicates with the medicine bottle (3).

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