CN217339652U - Nasal cavity spraying device with limiting and ventilating mechanism - Google Patents
Nasal cavity spraying device with limiting and ventilating mechanism Download PDFInfo
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- CN217339652U CN217339652U CN202221066857.XU CN202221066857U CN217339652U CN 217339652 U CN217339652 U CN 217339652U CN 202221066857 U CN202221066857 U CN 202221066857U CN 217339652 U CN217339652 U CN 217339652U
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Abstract
A nasal spray device comprises a body with one or two spray heads disposed distally of the body. Wherein a spacing air-permeable member is provided on each spray head to limit the depth of insertion of the spray head into the nasal cavity, the spacing air-permeable member comprising at least one air-permeable structure to allow inhalation when the spray head is inserted into the nasal cavity. The structure of the nasal spray device can protect the nasal cavity from being damaged, and also enables the medicine mist to be sucked into the nasal cavity deeper, thereby improving the treatment or vaccination effect.
Description
Technical Field
The present invention relates to a drug delivery device, and in particular to a nasal spray device for delivering a medicament in the form of a spray into the nasal cavity for use in medical procedures such as nasal cavity treatment, vaccination and the like.
Background
Nasal spray devices are widely used in the medical field for non-invasive delivery of drugs in the form of a spray to the interior of the nasal cavity, such as drugs for the treatment of diseases of the nasal cavity, such as vaccines that can be absorbed through the nasal cavity, in particular vaccines for infectious diseases of the respiratory tract, and so on. Nasal spray devices are of various types, e.g., multiple dose, single dose, double dose, etc.
In use, existing nasal spray devices have been found to suffer from certain drawbacks. For example, when a nasal spray device is used to apply a drug to a nasal cavity, a spray head of the nasal spray device needs to be inserted into the nasal cavity, and at this time, the spray head easily blocks the nasal cavity, making breathing difficult, and particularly making inhalation impossible, so that the drug solution discharged from the nasal spray device cannot enter the nasal cavity deep enough.
Moreover, since the nasal spray device is shallow when it is inserted into the nasal cavity, the droplets formed by the mist can easily flow out of the nasal cavity, which may affect the therapeutic effect on the nasal cavity, the vaccine contact effect, etc.
On the other hand, if the medicament is to be applied as deep as possible into the nasal cavity, the spray head of the nasal spray device needs to be inserted as deep as possible into the nasal cavity, which in turn increases the risk of damage to the nasal mucosa.
Accordingly, there is a need in the art for further improvements in the construction of nasal spray devices that overcome the problems with existing nasal spray devices described above.
SUMMERY OF THE UTILITY MODEL
The present invention is made to solve the problems of the prior art. The utility model aims at providing a nasal cavity atomizer with improve structure, it can improve the treatment effect to the nasal cavity or this improves the effect of vaccination. In addition, the nasal spray device can protect the nasal cavity from being damaged.
The nasal cavity spraying device of the utility model comprises a body, and one or two spraying heads are arranged on the far side of the body. Wherein a spacing air-permeable member is provided on each spray head to limit the depth of insertion of the spray head into the nasal cavity, the spacing air-permeable member comprising at least one air-permeable structure to allow inhalation when the spray head is inserted into the nasal cavity.
In the structure of the nasal cavity spraying device, the limit air-permeable component is arranged, so that the depth of the spray head inserted into the nasal cavity can be limited, the nasal cavity is protected from being damaged, and the air-permeable structure of the limit air-permeable component allows air suction when the nasal cavity is sprayed, so that the applied medicine mist can be sucked into the nasal cavity more deeply, and the treatment or vaccination effect is improved.
In an exemplary embodiment, the air-permeable structure is at least one through hole formed in the stopper air-permeable member.
More specifically, a plurality of through holes are formed in the stopper air-permeable member, the through holes being equiangularly spaced about the longitudinal axis of the nasal spray device.
Preferably, a plurality of through holes are formed in the stopper vent-device, and a protrusion portion protruding toward the distal side is formed between at least two adjacent through holes. In the process of inserting into the nasal cavity, the convex edge part of the limiting and ventilating member is firstly contacted with the nose to stop inserting, and the convex edge part is structured to form a gap between the nose and the through hole, so that the breathing is smoother.
Preferably, the stopper vent member is formed in an umbrella shape that flares distally to proximally.
Alternatively, in another structure, at least a portion of the stopper vent member is formed in a wave shape, wherein the wave shape includes a peak portion protruding distally and a valley portion protruding proximally, and the through hole is provided in the valley portion. This undulating design, including peaks and valleys, also maintains a gap between the nose and the through-hole for smooth breathing.
In another exemplary structure, the stopper vent member has a plurality of tabs extending radially outward from the spray head, and the vent structure is a gap portion formed between adjacent two tabs.
In the present invention, a specific example of the nasal cavity spray device is an injector, which includes a cylinder and a push rod, the push rod is inserted into the inner cavity of the cylinder from the open end of the near side of the cylinder, and the spray head is disposed at the far side of the cylinder.
Alternatively, the nasal cavity spray device may be one of an aerosol canister, an ear wash, an ultrasonic atomization generator, a microgrid atomization generator, and a compressed air atomization generator.
Drawings
The embodiments of the invention will become more apparent from the structure illustrated in the accompanying drawings, in which:
fig. 1 shows a perspective view of a nasal spray device, in particular a syringe, according to a first embodiment of the invention.
Fig. 2 a-2 d show different views of the spray head with a stopper air-permeable member of the nasal spray device of fig. 1, wherein fig. 2a is a side view, fig. 2b is a cross-sectional view, fig. 2c is a front view, and fig. 2d is a perspective view.
Fig. 3 shows a perspective view of a nasal spray device according to a second embodiment of the present invention.
Fig. 4 a-4 c show different views of the spray head with a stopper air-permeable member of the nasal spray device of fig. 3, wherein fig. 4a is a side view, fig. 4b is a front view, and fig. 4c is a perspective view.
Fig. 5 shows a perspective view of a nasal spray device according to a third embodiment of the present invention.
Fig. 6 a-6 c show different views of the spray head with a stop vent member of the nasal spray device of fig. 5, wherein fig. 6a is a side view, fig. 6b is a front view, and fig. 6c is a perspective view.
Fig. 7 shows a front view of a fourth embodiment of the nasal spray device of the present invention, wherein the nasal spray device is a nasal spray pump.
Detailed Description
In order to facilitate understanding of the present invention, the following detailed description will be made of a specific embodiment of the nasal cavity spraying device according to the present invention with reference to the accompanying drawings. It is understood that only the preferred embodiment of the present invention has been shown in the drawings and should not be considered as limiting the scope of the invention. Various obvious modifications, variations and equivalents of the present invention can be made by those skilled in the art on the basis of the embodiments shown in the drawings, and the technical features in the different embodiments described below can be arbitrarily combined with each other without contradiction, and these are within the scope of the present invention.
Further, in the following description, the term "distal" is used to refer to the side away from the operator, and correspondingly, "proximal" is the side closer to the operator.
< first embodiment >
Fig. 1-2 d show the structure of a nasal spray device 100 and some of its components according to a first embodiment of the present invention.
Fig. 1 is a perspective view schematically showing the overall structure of a nasal spray device 100. It can be seen that the nasal spray device 100 shown in fig. 1 is in the form of a syringe, which includes a barrel 110. The syringe 110 is shown as being generally cylindrical, i.e., cylindrical with a generally circular cross-section, but those skilled in the art will appreciate that the syringe 110 may be designed with other shapes, such as oval, even rectangular, polygonal, etc., in cross-section, depending on the application.
A ram 121 is disposed proximally of the syringe 110, the ram 121 having a plunger (not shown) at one end thereof, the plunger-equipped end of the ram 121 projecting from an open proximal end of the syringe 110 into a cavity inside the syringe 110. The push rod 121 is movable along a longitudinal axis of the syringe 110 to enable inhalation of a medicament into the syringe 110 or ejection of a medicament out of the syringe 110.
The barrel 110 and ram 121 may be considered to collectively comprise the body of the nasal spray device 100 in the form of an injector.
A spray head 122 is provided on the distal side of barrel 110, and when ram 121 is pushed longitudinally in the distal direction, the medicament in barrel 110 will be pushed through spray head 122, atomized by spray head 122 and ejected as a mist of medicament.
In the nasal cavity spraying device 100 of the present invention, the air permeable member 130 is provided at the position on the spray head 122, and when the spray head 122 is inserted into the nasal cavity to administer the drug to the inside of the nasal cavity, the air permeable member 130 leaves a breathing passage and also plays a role in restricting the depth of the nasal cavity into which the spray head 122 is inserted.
Fig. 2 a-2 d show different views of the spray head 122 with the position-limiting air-permeable member 130 to more clearly show the structure of the position-limiting air-permeable member 130.
As can be seen in the figures, the stopper vent member 130 in the first embodiment of the nasal spray device 100 is in the form of a distally to proximally flared ramp, i.e., is generally umbrella-shaped. At least one through hole 131 is formed in the umbrella-shaped cover, for example, three through holes 131 are formed in the structure shown in the figure, and the three through holes 131 are preferably equally angularly spaced around the longitudinal axis of nasal spray device 100, or alternatively, the centers of two adjacent through holes 131 may be angularly spaced from each other by 120 degrees. Of course, the plurality of through holes 131 provided on the stopper ventilation member 130 may not be equally angularly spaced, which is also within the scope of the present invention.
When the spray head 122 of the nasal spray device 100 is inserted into the nasal cavity to spray the medicine mist to the inside of the nasal cavity, the stopper air-permeable member 130 provided on the spray head 122 comes into contact with the nose, thereby blocking the spray head 122 from further protruding into the nasal cavity. This prevents spray head 122 from being inserted too deeply into the nasal cavity and causing damage thereto. When the medical staff pushes the pusher 121 distally, the medicine in the cylinder 110 is atomized by the atomizing head 122 and ejected as a medicine mist. At this time, the through holes 131 of the position-limiting air-permeable member 130 allow the person receiving the spray to inhale, and the inhaled air can be entrained with the mist of the medicine and enter the nasal cavity deeper
Preferably, a ridge portion 132 is formed between two adjacent through holes 131, and the ridge portion 132 protrudes outward or distally with respect to the portion of the stopper ventilation member 130 where the through holes 131 are provided. Thus, when the spray head 122 of the nasal spray device 100 is inserted into the nasal cavity, the nose will first contact the protruding ridge 132, blocking the spray head 122 from extending further into the nasal cavity. Further, a certain gap is left between the nose and the through hole 131, thereby making it possible for a person receiving the mist to breathe smoothly.
In addition, as can be seen from the cross-sectional view shown in fig. 2b, the stopper vent member 130 is integrally formed on the spray head 122. However, it will be appreciated by those skilled in the art that the spacing vent 130 may be formed separately and then assembled to the spray head 122.
< second embodiment >
Fig. 3-4 c show a nasal spray device 200 according to a second embodiment of the present invention. The specific structure described above with respect to the first embodiment also applies to the second embodiment without a contrary description or conflict. The structure of the second embodiment different from the first embodiment will be specifically described below.
Fig. 3 shows a perspective view of the overall structure of a second embodiment of a nasal spray device 200. The nasal spray device 200 has a barrel 210, and a ram 221 is provided proximally of the barrel 210, the ram 221 having one end with a plunger (not shown) projecting into a cavity within the barrel 210. A spray head 222 is provided on the distal side of the barrel 210. A stopper air-permeable member 230 is provided on the spray head 222.
As shown in fig. 4a to 4c, the stopper vent-through member 230 has a wave-shaped structure, and at least one (four structures are shown) through hole 131 is formed in the wave-shaped stopper vent-through member 230.
The wave-shaped stopper ventilation member 230 has a peak 232 protruding distally and a valley 233 protruding proximally, and the through-hole 131 is provided in the valley 233.
When spray head 222 is inserted into the nasal cavity, the nose will first contact peak 232, thereby preventing further insertion of spray head 222 into the interior of the nasal cavity. When spraying, the person receiving the spray can inhale through the through-hole 231 to allow the mist to enter the nasal cavity deeper. In addition, when spraying, a certain gap is formed between the through-holes 231 located at the valley 233 and the nose, so that the breathing can be more smooth.
< third embodiment >
Fig. 5 to 6c show a nasal spray device 300 according to a third embodiment of the present invention. The specific structures described above with respect to the first and second embodiments also apply to the third embodiment without a contrary description or conflict. The structure of the third embodiment different from the first and second embodiments will be specifically described below.
As shown in fig. 5, the nasal cavity spray device 300 of the third embodiment has a cylinder 310, one end of a push rod 321 with a plunger is inserted into the cylinder 310 from the proximal side of the cylinder 310, and a spray head 322 is provided on the distal side of the cylinder 310. The atomizing head 322 is provided with a stopper air-permeable member 330.
As shown in fig. 6a to 6c, the position-limiting air-permeable member 330 includes a plurality of (four in the structure shown in the figure) protruding tabs 331 protruding radially outward from the spray head 322, and a notch 332 is formed between two adjacent tabs 331.
When spray head 322 is inserted into the nasal cavity, the nose will contact tab 331, thereby preventing further insertion of spray head 322 into the interior of the nasal cavity. The presence of the cut-out 332 allows the person receiving the spray to inhale so that the mist of medicine can enter the nasal cavity deeper.
< fourth embodiment >
Fig. 7 shows a fourth embodiment of the nasal spray device 400 of the present invention. The specific structures described above with respect to the first to third embodiments also apply to the fourth embodiment without a contrary description or conflict. The structure of the fourth embodiment different from the first to third embodiments will be specifically described below.
As shown in fig. 7, the nasal spray device 400 of the fourth embodiment is specifically a nasal spray pump that can be mounted on a container containing a medicament. A nasal spray device 400 in the form of a nasal spray pump has a pump body 410 with a spray head 422 disposed distally of the pump body 410. The spray head includes a spacing vent member 430.
The stopper vent-through member 430 shown in fig. 7 has substantially the same structure as the stopper vent-through member 130 in the first embodiment. However, it is contemplated that the stopper vent members 230, 330 of the second and third embodiments may also be applied to the structure of the fourth embodiment shown in fig. 7.
While the preferred embodiments of the invention have been described in detail, it will be apparent to those skilled in the art that various obvious modifications can be made based on the above disclosure.
For example, the number of through holes or notches on the stopper air-permeable member may be determined according to specific needs. In addition, the structure of the stop ventilation member for breathing may take other forms besides the through-holes and cut-out portions, for example a slot may be formed in the outer, or nose-facing side of the stop ventilation member, which slot need only extend beyond the nose to allow an airflow path to the nasal cavity.
In the embodiments described above, the injector, nasal spray pump, etc., as the structure of the nasal spray device, all include a single spray head. On the basis of this, a double spray head is also conceivable, so that both nasal cavities can be sprayed simultaneously.
In addition, in addition to the above described syringe and nasal spray pump, the nasal spray device of the present invention may also be other specific structures, such as aerosol canister, ear washing ball with nozzle, ultrasonic atomization generator, micro-mesh atomization generator, compressed air atomization generator, etc. In addition, the nasal spray device may also be a collapsible head type of spray device as is commercially available.
Claims (9)
1. A nasal spray device comprising a body with one or two spray heads disposed distally of the body, characterised in that,
a stop air-permeable member is provided on each spray head to limit the depth of insertion of the spray head into the nasal cavity, at least one air-permeable structure being provided on the stop air-permeable member to allow inhalation when the spray head is inserted into the nasal cavity.
2. The nasal spray device of claim 1, wherein the air-permeable structure is at least one through-hole formed in the stopper air-permeable member.
3. The nasal spray device as claimed in claim 2, wherein a plurality of the through holes are formed in the stopper air-permeable member, the through holes being equally angularly spaced around the longitudinal axis of the nasal spray device.
4. The nasal spray device of claim 2, wherein a plurality of said through holes are formed in said stopper air-permeable member, and a protrusion protruding distally is formed between at least two adjacent through holes.
5. The nasal spray device of claim 2, wherein the stop ventilation member is formed in an umbrella shape that opens distally to proximally.
6. The nasal spray device of claim 2, wherein at least a portion of the stopper vent member is formed in a wave shape, wherein the wave shape includes a peak portion projecting distally and a valley portion projecting proximally, and wherein the through-hole is provided in the valley portion.
7. The nasal spray device of claim 1, wherein the air-permeable stop member has a plurality of tabs extending radially outward from the spray head, and the air-permeable structure is a notch formed between adjacent two of the tabs.
8. The nasal spray device according to any one of claims 1 to 7, wherein the nasal spray device is an injector comprising a barrel and a plunger inserted into an inner cavity of the barrel from an open end of the proximal side of the barrel, the spray head being disposed distal to the barrel.
9. The nasal spray device of any one of claims 1-7, wherein the nasal spray device is one of an aerosol canister, an ear-washing bulb, an ultrasonic spray generator, a micro-mesh spray generator, and a compressed air spray generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221066857.XU CN217339652U (en) | 2022-05-06 | 2022-05-06 | Nasal cavity spraying device with limiting and ventilating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221066857.XU CN217339652U (en) | 2022-05-06 | 2022-05-06 | Nasal cavity spraying device with limiting and ventilating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217339652U true CN217339652U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221066857.XU Active CN217339652U (en) | 2022-05-06 | 2022-05-06 | Nasal cavity spraying device with limiting and ventilating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217339652U (en) |
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- 2022-05-06 CN CN202221066857.XU patent/CN217339652U/en active Active
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Address after: 215127 No. 95, Dongzhuang Road, Luzhi Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Tianzhou Medical (Suzhou) Co.,Ltd. Address before: No. 95, Dongzhuang Road, Wuzhong District, Suzhou City, Jiangsu Province 215127 Patentee before: Tianzhou packaging (Suzhou) Co.,Ltd. |