CN219090788U

CN219090788U - Simple and easy adult external auditory canal deep and tympanic membrane surface drug delivery device

Info

Publication number: CN219090788U
Application number: CN202223014832.8U
Authority: CN
Inventors: 陈见清; 汪琪璇
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2022-11-12
Filing date: 2022-11-12
Publication date: 2023-05-30
Anticipated expiration: 2032-11-12

Abstract

A simple device for feeding medicine to the deep part of external auditory canal and the surface of tympanic membrane of adult is composed of container, medicine feeding handle, infusion tube, medicine feeding unit for external auditory canal, the first catheter, liquid storage cavity, medicine feeding valve and flow limiting valve. The container is used for containing liquid medicine, and the outer wall of the container is provided with a medicine feeding handle. The flow limiting valve group is positioned at the communication position of the liquid storage cavity and the first catheter, and two ends of the infusion tube are respectively connected with the container and the external auditory canal drug delivery piece. The dosing valve is arranged in the liquid storage cavity and comprises a connecting rod, and one end of the connecting rod is connected with the dosing handle. The simple device for feeding the medicine to the deep part of the external auditory canal and the surface of the tympanic membrane of the adult has the advantages of simple structure, convenient operation and strong practicability, can enable patients to realize self-administration to the deep part of the external auditory canal or the surface of the tympanic membrane, improves medication compliance of the patients, helps to recover the diseases difficult to feed, such as the external auditory canal inflammation, the external auditory canal eczema and the like, and is beneficial to realizing expected therapeutic effects clinically.

Description

Simple and easy adult external auditory canal deep and tympanic membrane surface drug delivery device

Technical Field

The utility model relates to a drug delivery device, in particular to a device for drug delivery of deep part of external auditory meatus and surface of tympanic membrane of adult.

Background

External otitis is one of the most common diseases in otorhinolaryngology outpatients, and has a particularly high incidence in damp and warm areas such as tropical and subtropical areas. An important way for treating the external auditory meatus is local administration of the external auditory meatus, and patients are usually ordered to drip the ears by themselves in clinic at present, so that the patients are inconvenient to operate by themselves, and liquid in the external auditory meatus can be stored after the ears are dripped, so that the patients feel uncomfortable such as ear distress, moist and the like. In addition, for diseases such as fungal external auditory meatus inflammation and external auditory meatus eczema, corresponding ointments are often needed to treat, and patients are generally prescribed to dip the ointments by using cotton swabs at present clinically, so that besides inconvenient operation, the medicines are difficult to reach the deep part of the external auditory meatus and the surface of the tympanic membrane, the treatment effect is greatly influenced, and the symptom relief and the disease recovery of the patients are hindered.

CN101528283a discloses a device for delivering therapeutic and/or other agents to the inner ear and other tissues, which may include a needle for continuously delivering drugs or other agents to the inner ear or other tissues of a human or animal. The needle may include an insertion stop and may be positioned through a round window septum or through a surgically prepared hole in the bone. The needle may be in fluid communication with the port and/or with a microinjection or osmotic pump. A cochlear implant electrode may be used instead of a needle. The inner ear is administered by surgery and therefore the device is not suitable for external ear administration.

Therefore, there is a need in the clinic for a simple and convenient drug delivery device that is self-administered by the patient and that can be used in the deep external auditory canal and on the surface of the tympanic membrane.

Disclosure of Invention

The utility model aims to provide a simple device for feeding medicine to the deep part of the external auditory canal and the surface of the tympanic membrane of an adult, which is beneficial to the patient to automatically feed medicine to the deep part of the external auditory canal or the surface of the tympanic membrane.

Another object of the present utility model is to provide a simple device for feeding medicine to the deep external auditory canal and the surface of the tympanic membrane of an adult, which can improve the effect of the patient on the medicine feeding to the deep external auditory canal or the surface of the tympanic membrane by himself.

A simple adult external auditory canal deep and tympanic membrane surface drug delivery device, comprising:

a container for containing a medicinal liquid;

one end of the drug delivery handle is fixed on the outer wall of the container and can rotate around the fixed position;

one end of the infusion tube is connected with the container and is used for conveying the liquid medicine from the container;

the external auditory canal administration piece is communicated with the infusion tube and comprises an administration end for penetrating into the deep part of the external auditory canal and the surface of the tympanic membrane to administer medicine;

one end of the first conduit is immersed in the liquid medicine page, and the other end of the first conduit is positioned at the opening of the container;

a liquid storage cavity which is arranged in the container and communicated with the first conduit;

the drug delivery valve is arranged in the liquid storage cavity and comprises a connecting rod, and one end of the connecting rod is connected with the drug delivery handle;

the flow limiting valve group comprises a first valve blade and a second valve blade, one end of the first valve blade is fixed on the inner wall of the first conduit, and the other end of the first valve blade is lapped on the inner wall of the first conduit; one end of the second valve blade is fixed on the inner wall of the first conduit, and the other end is lapped on the inner wall of the first conduit.

The utility model relates to a simple drug delivery device for the deep part of the external auditory canal and the surface of tympanic membrane of an adult, which comprises a first piston piece, a second piston piece and a spring, wherein the two ends of the spring are respectively connected with the first piston piece and the second piston piece, and a through hole is further arranged on the first piston piece and used for leading liquid medicine to enter or be discharged from a liquid storage cavity.

The utility model relates to a simple device for feeding medicine to the deep part of the external auditory canal and the surface of the tympanic membrane of an adult, and the medicine feeding end is made of flexible materials (such as silica gel, polyester, etc.) so as to avoid damaging the external auditory canal and the tympanic membrane.

The administration end is also provided with a plurality of liquid outlet holes so as to disperse the liquid medicine and reduce the force of the liquid medicine on tissues, and on the other hand, the liquid medicine is also beneficial to being uniformly distributed on the surfaces of auditory canal tissues or tympanic membranes, and the treatment effect of administration is improved.

The utility model relates to a simple device for feeding medicine to the deep part of the external auditory canal and the surface of the tympanic membrane of an adult, which is characterized in that a connecting piece is further arranged at the joint of an external auditory canal medicine feeding piece and an infusion tube, so that the external auditory canal medicine feeding piece and the infusion tube can be movably connected, for example: the external auditory canal drug delivery piece can be replaced by plugging or screwing, or can be used as a disposable component.

In order to control the depth of the external auditory canal administration piece entering the external auditory canal, the simple adult external auditory canal deep and tympanic membrane surface administration device also comprises a baffle ball with the diameter of 1cm, and is sleeved on the infusion tube.

By adopting the technical scheme, the beneficial effects of the utility model are as follows:

the simple device for feeding the medicine to the deep part of the external auditory canal and the surface of the tympanic membrane of the adult has the advantages of simple structure, convenient operation and strong practicability, not only can enable a patient to realize self-administration to the deep part of the external auditory canal or the surface of the tympanic membrane, improve the medication compliance of the patient, but also can enable the uniformity of local administration to be improved, enable the medicine to reach the deep part of the external auditory canal and the surface of the tympanic membrane, help the external auditory meatus, especially the fungal external auditory meatus, the eczema of the external auditory meatus and other difficult administration and easy recurrence diseases to recover as early as possible, and be beneficial to realizing the expected therapeutic effect clinically.

Compared with the traditional drug delivery device which adopts a hard drug delivery nozzle to extend into the external auditory canal to cause pain and discomfort of a patient and can not reach the surface of the eardrum to deliver drugs through physiological bending of the external auditory canal, the external auditory canal drug delivery piece adopts soft flexible materials, is matched with proper diameter and length, can be operated by a patient by himself, and can easily extend into the external auditory canal under the invisible condition to spray drugs on the deep part of the external auditory canal and the surface of the eardrum. The disposable requirement can be met by replacing the external auditory canal drug delivery piece.

On the other hand, when the patient operates the existing auditory canal drug delivery device by himself and is invisible, the drug delivery head is extremely easy to extend into the auditory canal too deeply, and pain and even damage to the tympanic membrane can be caused. In contrast, the utility model can prevent the drug delivery head from entering the external auditory canal too deeply by arranging the baffle ball to fill the baffle ball in the concha cavity part, and can also be used as a stress fulcrum of the drug delivery device.

Drawings

Fig. 1 is a schematic view of an embodiment of a drug delivery device according to the present utility model.

FIG. 2 is a schematic view of the drug delivery device of FIG. 1 in an operational state, with arrows indicating the direction of fluid flow;

fig. 3 is a schematic view of the drug delivery device of fig. 1 in another operational state, wherein arrows indicate the direction of liquid flow.

Detailed Description

The technical scheme of the utility model is described in detail below with reference to the accompanying drawings. The embodiments of the present utility model are only for illustrating the technical scheme of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical scheme of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Fig. 1 is a schematic structural view of an embodiment of the drug delivery device of the present utility model, fig. 2 is a schematic view of an operation state of the drug delivery device shown in fig. 1, in which arrows indicate a liquid flow direction, and fig. 3 is a schematic view of another operation state of the drug delivery device shown in fig. 1, in which arrows indicate a liquid flow direction. As shown in fig. 1, 2 and 3, the administration device of the present embodiment is used for administration of the deep external auditory meatus and the surface of tympanic membrane of an adult, and includes a container 100 for holding a medicinal liquid (not shown). A first conduit 200, a reservoir 400 and an administration valve 300 are disposed within the container. One end of the first conduit 200 is immersed below the liquid surface of the liquid medicine, and the other end is positioned in an upper opening of the container 100 and is communicated with the infusion tube 500, so that the liquid medicine in the container 100 is introduced into the infusion tube 500. A flow restricting valve block 800, including a first valve blade 810 and a second valve blade 820, is disposed within the lumen of the first conduit 200 where the reservoir 500 and the first conduit 200 communicate. One end of the first valve blade 810 is fixed to the inner wall of the first conduit 200, and rotates around the fixed end when the force is applied. The other end of the first valve blade 810 is mounted on the inner wall of the first conduit 200 to block the liquid medicine or air flow. One end of the second valve blade 820 is fixed to the inner wall of the first conduit 200, and rotates around the fixed end after being applied with force. The other end of the second valve blade 820 is mounted on the inner wall of the first conduit 200 to block the liquid medicine or air flow.

One end of the administration handle 800 is fixed to the outer wall of the container 100 and can rotate around the fixed position.

The external auditory canal administration member 600 communicates with the infusion tube 500, and includes an administration tip 610 penetrating into the deep part of the external auditory canal and the surface of the tympanic membrane to administer the drug, and is made of a flexible material (e.g., silica gel, polyester, etc.) so as not to damage the external auditory canal and the tympanic membrane. In order to avoid the impact force of the liquid medicine on the auditory canal tissue or the tympanic membrane tissue, the administration end 610 is further provided with a plurality of liquid outlet holes 611 to disperse the liquid medicine to reduce the force of the liquid medicine on the tissue, and on the other hand, the liquid medicine is also beneficial to being uniformly distributed on the surface of the auditory canal tissue or the tympanic membrane tissue, so that the therapeutic effect of administration is improved.

At the junction of the external auditory canal administration member 600 and the infusion tube 500, a connecting member 700 is further provided, so that the external auditory canal administration member 600 and the infusion tube 500 are movably connected, for example: the external auditory canal administration device 600 may be replaced by a plug or screw connection, or may be a disposable component.

The liquid storage cavity 400 is communicated with the first conduit 200, the administration valve 300 is arranged in the cavity, the administration valve comprises a first piston member 310, a second piston member 320, a connecting rod 340 and a spring 330, two ends of the spring 330 are respectively connected with the first piston member 310 and the second piston member 320, and a through hole 311 is further arranged on the first piston member 310 and used for allowing liquid medicine to enter or be discharged out of the liquid storage cavity 400.

The link 340 is connected at both ends to the administration handle 800 and the second piston member 320, respectively. When the administration handle 800 is pulled, the liquid medicine is sucked through the first conduit 200 by the action of the administration valve 300, and impacts the second valve blade 820, so that one end of the second valve blade is separated from the tube wall and rotates around the end fixed on the tube wall, and the liquid medicine enters and is stored in the liquid storage cavity 400 through the through hole 311. After stopping pulling the administration handle 800, the second valve blade 820 falls under gravity, and the other end thereof rides on the tube wall.

After the drug delivery handle 900 is released, the drug delivery valve 300 discharges the drug solution in the reservoir 400 through the through hole 311 by the elastic action of the spring 330, and at this time, the second valve blade 820 is closed by the impact of the drug solution, and the first valve blade 810 simultaneously delivers the drug solution into the infusion tube 500, and only the external auditory canal drug delivery member 600 is delivered to the deep part of the external auditory canal or the surface of the tympanic membrane.

To control the depth of the external auditory canal administration device 600 into the external auditory canal, a barrier ball 510 having a diameter of 1cm is fitted over the infusion tube 500. The barrier ball 510, when touching the entrance of the ear canal, is the maximum depth into which the external auditory canal administration member 600 enters. Thus, the external auditory canal administration member 600 is effectively prevented from being inserted too deeply into the auditory canal to damage the tympanic membrane under the condition that the patient does not operate the device by himself.

Claims

1. A simple device for feeding medicine to the deep part of the external auditory canal and the surface of the tympanic membrane of an adult, which is characterized by comprising:

a container for containing a medicinal liquid;

the flow limiting valve group is positioned at the communication position of the liquid storage cavity and the first conduit and comprises a first valve blade and a second valve blade, one end of the first valve blade is fixed on the inner wall of the first conduit, and the other end of the first valve blade is lapped on the inner wall of the first conduit; one end of the second valve blade is fixed on the inner wall of the first conduit, and the other end is lapped on the inner wall of the first conduit.

2. The simple adult external auditory canal deep and tympanic membrane surface drug delivery device according to claim 1, wherein the drug delivery valve further comprises a first piston member, a second piston member and a spring, wherein two ends of the spring are respectively connected with the first piston member and the second piston member.

3. The simple adult external auditory canal deep and tympanic membrane surface administration device according to claim 2, wherein a through hole is further provided in the first piston member for the liquid medicine to enter or exit the liquid storage chamber.

4. The simple adult external auditory canal deep and tympanic membrane surface drug delivery device according to claim 1, wherein a connecting piece is further arranged at the joint of the external auditory canal drug delivery piece and the infusion tube, so that the external auditory canal drug delivery piece and the infusion tube are movably connected.

5. The simple adult external auditory canal deep and tympanic membrane surface administration device according to claim 4, wherein the movable connection is a plug or screw connection.

6. The simple adult external auditory canal deep and tympanic membrane surface administration device according to claim 1, further comprising a baffle ball sleeved on the infusion tube.

7. The simple adult external auditory canal deep and tympanic membrane surface administration device according to claim 6, wherein the diameter of the barrier ball is 1cm.