Ear hanging type non-power ear precise drug delivery device

Abstract

The invention provides an ear-hanging type non-power ear precise drug delivery device. The ear-hanging type non-power ear precise drug delivery device comprises an ear-hanging type shell, a drug storage pool, a pressurizing spring piece, a soft catheter and a flow control device. Wherein the medicine storage pool is fixed on the inner wall of the ear-hanging type shell; the pressurizing spring pieces are arranged on one side or two sides of the medicine storage pool and are used for pressurizing the storage pool by extruding the storage pool so as to promote the medicine in the storage pool to flow out; the first end of the soft catheter is connected with the storage pool, and the second end of the soft catheter extends out of the ear-hanging type shell, so that the medicine in the storage pool is fed into the ear hung on the ear-hanging type shell during use; moreover, the flow control device is embedded into the ear-hook type shell, the functional part of the flow control device is located in the ear-hook type shell, and the operating part of the flow control device is located on the outer side of the ear-hook type shell, so that a user controls the flow rate of liquid in the soft catheter through the functional part by operating the operating part.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an ear-hook type non-powered ear precision drug delivery device. Background Art

[0002] Tympanic administration is a local method for treating inner ear diseases, mainly used in otology, especially for deafness, tinnitus, vertigo, etc. This method delivers the drug directly to the tympanic cavity of the middle ear, allowing the drug to penetrate the round window membrane or oval window membrane and then enter the perilymph of the inner ear, directly affecting the cochlea and vestibular organs.

[0003] However, there is no precision drug delivery device designed specifically for tympanic cavity drug delivery on the market. Therefore, it is expected that a new type of ear-hook type non-powered ear precision drug delivery device can be developed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a non-powered ear precision drug delivery device that is easy to hang on the ear and fix in view of the above-mentioned defects in the prior art.

[0005] According to the present invention, an ear-hook type non-powered ear precision drug delivery device is provided, comprising: an ear-hook type shell, a drug storage tank, a pressurizing spring sheet, a soft conduit and a flow control device; wherein the drug storage tank is fixed on the inner wall of the ear-hook type shell; the pressurizing spring sheet is arranged on one side or both sides of the drug storage tank for pressurizing the storage tank by squeezing the storage tank to promote the outflow of the drug in the storage tank; the first end of the soft conduit is connected to the storage tank, and the second end of the soft conduit extends to the outside of the ear-hook type shell, so that when in use, the drug in the storage tank is delivered into the ear on which the ear-hook type shell is hung; and the flow control device is embedded in the ear-hook type shell, with its functional part being inside the ear-hook type shell and its operating part being outside the ear-hook type shell, so that the user controls the liquid flow rate in the soft conduit via the functional part by operating the operating part.

[0006] Preferably, the flow control device includes a snap-on switch, which includes a control unit and a fixing unit respectively arranged at corresponding positions on opposite sides of the inner wall of the ear-hook shell, and the soft tube passes through the position between the control unit and the fixing unit; the cross-sectional shape of the control unit is a wing-shaped structure, and one vertex of the wing-shaped structure is hingedly fixed on the ear-hook shell, so that the side of the wing-shaped structure on the outside of the ear-hook shell can be rotated close to or away from the outer wall of the ear-hook shell under the operation of the user, thereby controlling the squeezing of the soft tube by the vertex of the wing-shaped structure inside the ear-hook shell.

[0007] Preferably, the flow control device achieves drug administration in a microliter droplet manner, so that the flow rate is controlled at 0.5 to 2 ml per hour.

[0008] Preferably, the side of the wing-shaped structure outside the ear-hook housing is larger than the size of a gap formed in the ear-hook housing through which the wing-shaped structure passes, so that the side of the wing-shaped structure outside the ear-hook housing cannot pass through the ear-hook housing.

[0009] Preferably, the fixing unit is formed as a protrusion on the inner wall of the ear-hook housing, or is directly a region of the inner wall of the ear-hook housing opposite to the control unit.

[0010] Preferably, the flow control device comprises a microfluidic knob arranged on the soft catheter, wherein the microfluidic mechanical device is embedded in the ear-hook housing, and the fluidic control key of the ear-hook housing is formed on the outer side of the ear-hook housing.

[0011] Preferably, the soft catheter may include a first catheter portion between the drug reservoir and the microfluidic mechanical device and a second catheter portion extending from the microfluidic mechanical device to the outside of the ear-hook housing, and a diameter of the second catheter portion is smaller than a diameter of the first catheter portion.

[0012] Preferably, the medicine storage reservoir is fixed to the bottom inner wall of the ear-hook housing.

[0013] Also preferably, the drug reservoir is a vesicular drug reservoir.

[0014] Preferably, the drug storage reservoir is made of a deformable material and deforms under the pressure of the pressurizing spring sheet so as to squeeze the drug in the storage reservoir out of the storage reservoir.

[0015] Preferably, the pressurized spring sheet includes a baffle or a block, and a spring having one end connected to the baffle or the block and the other end fixed inside the ear-hook housing, wherein the baffle or the block squeezes and pressurizes the storage tank.

[0016] Preferably, the earhook housing comprises a curved earhook structure.

[0017] Preferably, the ear-hanging housing and the drug storage tank are made of plastic, silicone or metal foil, and the soft catheter is made of a medical catheter.

[0018] The precision drug delivery device of the present invention innovatively adopts an overall structure with an ear-hook appearance, so that users can take medicine without affecting their daily life. The present invention is easy to operate, easy to hang on the ear, and has no obvious adverse reactions such as discomfort, which greatly improves the patient's compliance and the accuracy of sustained-release targeted drug delivery. At the same time, the present invention has a low production cost and is suitable for large-scale production and promotion and application.

[0019] The present invention is particularly suitable for local drug delivery through the external auditory canal and tympanic cavity. It is a portable ear-hanging device, and in particular, it can accurately deliver drugs to the ear in a non-powered manner. It has good application prospects and economic benefits for treating inner ear diseases such as deafness, tinnitus and vertigo. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] A more complete understanding of the present invention and its attendant advantages and features will be more readily appreciated by reference to the following detailed description taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 The overall schematic diagram of an ear-hook type non-powered ear precision drug delivery device according to a preferred embodiment of the present invention is schematically shown.

[0022] Figure 2 The overall schematic diagram of an ear-hook type non-powered ear precision drug delivery device according to a further preferred embodiment of the present invention is schematically shown.

[0023] It should be noted that the drawings are used to illustrate the present invention, rather than to limit the present invention. Note that the drawings showing the structures may not be drawn to scale. In addition, in the drawings, the same or similar elements are marked with the same or similar reference numerals. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] Figure 1 The overall schematic diagram of the ear-hook type non-powered ear precision drug delivery device according to a preferred embodiment of the present invention is schematically shown. Figure 1 It is shown in perspective, ie some internal structures as well as some external structures are shown simultaneously.

[0029] like Figure 1 As shown, the ear-hook non-powered ear precision drug delivery device according to a preferred embodiment of the present invention includes: an ear-hook housing 10, a drug storage tank 20, a pressurized spring sheet 30, a soft catheter 40 and a flow control device 50.

[0030] For example, the earhook housing 10 includes a curved earhook structure 11 .

[0031] The drug storage pool 20 is fixed on the inner wall of the ear-hook housing 10; preferably, the drug storage pool 20 is fixed on the bottom inner wall of the ear-hook housing 10. And preferably, the drug storage pool 20 is a capsule-shaped drug storage pool.

[0032] The pressurizing spring sheet 30 is arranged on one side or both sides of the drug storage reservoir 20 , and is used to pressurize the storage reservoir 20 by squeezing the storage reservoir 20 to promote the outflow of the drug in the storage reservoir 20 .

[0033] For example, in the case where the pressurizing spring sheet 30 is disposed only on one side of the medicine storage reservoir 20 , the other side of the medicine storage reservoir 20 is against the inner wall of the ear-hook type housing 10 .

[0034] For another example, the drug storage reservoir 20 is made of a deformable material and deforms under the pressure of the pressurizing spring sheet 30 so as to squeeze the drug in the storage reservoir 20 out of the storage reservoir 20 .

[0035] For example, in a specific implementation, the pressurized spring sheet 30 may include a baffle or a block, and a spring having one end connected to the baffle or the block and the other end fixed inside the ear-hook housing 10; the baffle or the block squeezes and pressurizes the storage tank 20.

[0036] The first end of the soft tube 40 is connected to the storage tank 20, and the second end of the soft tube 40 extends to the outside of the ear-hook shell 10, so that when in use, the medicine in the storage tank 20 is delivered to the ear (such as the ear canal tympanic cavity) of the ear where the ear-hook shell 10 is hung.

[0037] Moreover, the flow control device 50 is embedded in the ear-hook housing 10, with its functional part inside the ear-hook housing 10 and its operating part outside the ear-hook housing 10, so that the user can control the flow rate of the liquid in the soft tube 40 through the functional part by operating the operating part. Preferably, the flow control device 50 implements microliter droplet administration, so that the flow rate is controlled at 0.5 to 2 ml per hour.

[0038] Specifically, Figure 1 As shown, the flow control device 50 is a snap-on switch, which includes a control unit 51 and a fixing unit 52, which are respectively arranged at corresponding positions on opposite sides of the inner wall of the ear-hook shell 10, and the soft tube 40 passes through the position between the control unit 51 and the fixing unit 52; the control unit 51 is shaped like a wing-shaped structure, and one vertex of the wing-shaped structure is hingedly fixed on the ear-hook shell 10, so that the side 53 of the wing-shaped structure on the outside of the ear-hook shell 10 can be rotated close to or away from the outer wall of the ear-hook shell 10 under the operation of the user, thereby controlling the squeezing of the soft tube 40 by the vertex of the wing-shaped structure inside the ear-hook shell 10.

[0039] For example, if Figure 1 As shown by the arrow in the figure, as the user presses down the side 53 of the wing-shaped structure on the outside of the ear-hook housing 10 in the direction indicated by the arrow, the vertex of the wing-shaped structure inside the ear-hook housing 10 is gradually squeezed toward the soft catheter 40 at the position between the control unit 51 and the fixing unit 52, thereby reducing the flow rate of the drug in the soft catheter 40.

[0040] On the contrary, if the user presses down the side 53 of the wing-shaped structure on the outside of the ear-hook housing 10 in the direction opposite to the direction indicated by the arrow, the vertex of the wing-shaped structure inside the ear-hook housing 10 gradually releases the squeezing of the soft catheter 40 at the position between the control unit 51 and the fixing unit 52, thereby increasing the flow rate of the drug in the soft catheter 40.

[0041] Preferably, the size of the side 53 of the wing-shaped structure located outside the ear-hook housing 10 is larger than the size of the gap formed in the ear-hook housing 10 through which the wing-shaped structure passes, so that the side 53 of the wing-shaped structure located outside the ear-hook housing 10 cannot pass through the ear-hook housing 10.

[0042] Preferably, the fixing unit 52 is formed as a protrusion on the inner wall of the ear-hook housing 10 , or is directly a region of the inner wall of the ear-hook housing 10 opposite to the control unit 51 (without forming a protrusion).

[0043] For example, the ear-hook housing 10 and the drug storage reservoir 20 are made of plastic, silicone or metal foil, and the soft catheter 40 is made of a medical catheter.

[0044] Figure 2 The overall schematic diagram of the ear-hook type non-powered ear precision drug delivery device according to a further preferred embodiment of the present invention is schematically shown. Figure 2 It is shown in perspective, ie some internal structures as well as some external structures are shown simultaneously.

[0045] Among them, a microfluidic knob 60 can be added to the above device, or the microfluidic knob 60 can be used to replace the snap switch as the flow control device. That is, in specific implementation, the flow control device can include one or both of the snap switch and the microfluidic knob 60.

[0046] like Figure 2 As shown, according to a further preferred embodiment of the present invention, the ear-hook non-powered ear precision drug delivery device also includes: a microfluidic knob 60 arranged on the soft catheter 40, wherein the microfluidic mechanical device 60 is embedded in the ear-hook housing 10, and the fluidic control key (such as a knob or button) of the ear-hook housing 10 is formed on the outside of the ear-hook housing 10.

[0047] Therefore, preferably, the soft catheter 40 may include a first catheter portion 41 between the drug storage reservoir 20 and the microfluidic mechanical device 60 and a second catheter portion 42 extending from the microfluidic mechanical device 60 to the outside of the ear-hook housing 10, and the diameter of the second catheter portion 42 is smaller than the diameter of the first catheter portion 41.

[0048] The precision drug delivery device of the present invention innovatively adopts an overall structure with an ear-hook appearance, so that users can receive drugs without affecting their daily lives. The present invention is easy to operate, easy to hang on the ear, and has no adverse reactions such as obvious discomfort, which greatly improves the patient's compliance and the accuracy of sustained-release targeted drug delivery. At the same time, the present invention has a low production cost and is suitable for large-scale production and promotion and application.

[0049] The present invention is particularly suitable for local drug delivery through the external auditory canal and tympanic cavity. It is a portable ear-hanging device, and in particular, it can accurately deliver drugs to the ear in a non-powered manner. It has good application prospects and economic benefits for treating inner ear diseases such as deafness, tinnitus and vertigo.

[0050] In addition, it should be noted that, unless otherwise specified, the terms "first", "second", "third", etc. in the specification are only used to distinguish the various components, elements, steps, etc. in the specification, and are not used to indicate the logical relationship or sequential relationship between the various components, elements, steps, etc.

[0051] It is to be understood that, although the present invention has been disclosed as a preferred embodiment, the above embodiment is not intended to limit the present invention. For any person skilled in the art, without departing from the scope of the technical solution of the present invention, the technical content disclosed above can be used to make many possible changes and modifications to the technical solution of the present invention, or modified into equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. An ear-hook type non-powered ear precision drug delivery device, characterized in that include: An ear-hook shell, a drug storage tank, a pressurizing spring sheet, a soft catheter and a flow control device; wherein the drug storage tank is fixed on the inner wall of the ear-hook shell; the pressurizing spring sheet is arranged on one side or both sides of the drug storage tank for pressurizing the storage tank by squeezing the storage tank to promote the outflow of the drug in the storage tank; the first end of the soft catheter is connected to the storage tank, and the second end of the soft catheter extends to the outside of the ear-hook shell, so that when in use, the drug in the storage tank is delivered to the ear on which the ear-hook shell is hung; and the flow control device is embedded in the ear-hook shell, with its functional part being inside the ear-hook shell and its operating part being outside the ear-hook shell, so that the user can control the liquid flow rate in the soft catheter through the functional part by operating the operating part.

2. The ear-hook type non-powered ear precision drug delivery device according to claim 1, characterized in that: The flow control device includes a snap-on switch, which includes a control unit and a fixing unit respectively arranged at corresponding positions on opposite sides of the inner wall of the ear-hook housing, and the soft conduit passes through the position between the control unit and the fixing unit; the cross-sectional shape of the control unit is a wing-shaped structure, and one vertex of the wing-shaped structure is hingedly fixed on the ear-hook housing, so that the side of the wing-shaped structure located outside the ear-hook housing can be rotated to approach or move away from the outer wall of the ear-hook housing under the operation of the user, thereby controlling the vertex of the wing-shaped structure located inside the ear-hook housing to squeeze the soft conduit; And / or the flow control device realizes micro-liter droplet administration, so that the flow rate is controlled at 0.5 to 2 ml per hour.

3. The ear-hook type non-powered ear precision drug delivery device according to claim 2, characterized in that: The side of the wing-shaped structure outside the ear-hook housing is larger than the size of the gap formed in the ear-hook housing through which the wing-shaped structure passes, so that the side of the wing-shaped structure outside the ear-hook housing cannot pass through the ear-hook housing.

4. The ear-hook type non-powered ear precision drug delivery device according to claim 2, characterized in that: The fixing unit is formed as a protrusion on the inner wall of the ear-hook housing, or is directly a region of the inner wall of the ear-hook housing opposite to the control unit.

5. The ear-hook type non-powered ear precision drug delivery device according to claim 1 or 2, characterized in that: The flow control device comprises a microfluidic knob arranged on the soft catheter, wherein the microfluidic mechanical device is embedded in the ear-hook shell, and the flow control key of the ear-hook shell is formed on the outer side of the ear-hook shell.

6. The ear-hook type non-powered ear precision drug delivery device according to claim 5, characterized in that: The soft catheter may include a first catheter portion between the drug reservoir and the microfluidic mechanical device and a second catheter portion extending from the microfluidic mechanical device to the outside of the ear-hook housing, and a diameter of the second catheter portion is smaller than a diameter of the first catheter portion.

7. The ear-hook type non-powered ear precision drug delivery device according to claim 1 or 2, characterized in that: The medicine storage tank is fixed to the bottom inner wall of the ear-hook type housing.

8. The ear-hook type non-powered ear precision drug delivery device according to claim 1 or 2, characterized in that: The drug reservoir is a cystic drug reservoir; and / or, The medicine storage pool is made of a deformable material and deforms under the pressure of the booster spring sheet so as to squeeze the medicine in the storage pool out of the storage pool; and / or, The pressurized spring sheet comprises a baffle or a stopper, and a spring whose one end is connected to the baffle or the stopper and the other end is fixed inside the ear-hook housing, wherein the baffle or the stopper squeezes and pressurizes the storage tank.

9. The ear-hook type non-powered ear precision drug delivery device according to claim 1 or 2, characterized in that: The earhook housing includes a curved earhook structure.

10. The ear-hook type non-powered ear precision drug delivery device according to claim 1 or 2, characterized in that: The ear-hanging shell and the medicine storage tank are made of plastic, silicone or metal sheets, and the soft catheter is made of a medical catheter.

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