Ear puncture aspirator

Abstract

The utility model discloses an ear puncture liquid extractor which comprises a needle tube, a puncture needle is arranged at one end of the needle tube, a piston rod is arranged in an inner cavity of the needle tube in a sliding mode, and an elastic medicine bag communicated with the inner cavity of the needle tube is connected to the outer side of the end, close to the puncture needle, of the needle tube. The upper end of the medicine bag is provided with a medicine injection port and a one-way exhaust port, the medicine injection port and the exhaust port are respectively provided with a sealing cover, a negative pressure drainage connector is arranged at the position, opposite to the medicine bag, of the outer side of the needle tube, the side, close to the needle tube, of the puncture needle is connected with the negative pressure drainage connector through an extension tube, and an opening and closing valve is arranged at the joint of the negative pressure drainage connector and the extension tube. And the puncture needle is made of a flexible material. The ear puncture liquid extractor has the advantages of improving operation efficiency, reducing wounds to patients, ensuring continuity and effectiveness of liquid medicine and the like, and is an effective tool for treating auricle pseudocyst.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, and particularly relates to an ear puncture liquid aspirator. BACKGROUND

[0002] The auricle false cyst refers to the non-purulent serous cyst in the cartilage sandwich of the auricle, is a common disease in the outpatient service of the otolaryngology department, and is mostly occurred on the upper half of the lateral side of the auricle (i.e. the concave surface of the auricle), contains light yellow serous exudate, and forms a cyst-like bulge. It is mostly occurred in 30-45 years old, and the male is more than the female, and the single side is mostly seen. The cyst is previously considered to be between the perichondrium and the cartilage, and the pathological view considers that it is more appropriate to be called intercartilaginous hydrops, and since the cyst wall has no epithelial layer, it is called false cyst, can gradually increase the auricle shape, and affects the appearance.

[0003] The treatment can usually use needle suction, the cyst fluid is sucked out after puncture, the perichondrium and the cartilage can be closely attached through local appropriate pressure, so that the exudation is no longer. The perichondrium and the cartilage can be healed after continuous pressure for about one week, and the exudation is usually not after healing. The key of treatment is suction and pressure dressing, and the treatment effect is relatively good. The traditional way is to puncture into the cyst with a disposable arterial and venous indwelling needle and fix, connect a 5ml syringe needle tube to aspirate the cyst fluid, remove the needle tube, replace another 5ml syringe needle tube, repeatedly inject and aspirate the mixed solution of gentamicin and dexamethasone into the cyst cavity, until the liquid is clear and there is no cyst fluid mixture. As much as possible, the drug in the cyst cavity is aspirated, and another 10ml syringe needle tube is connected, and the syringe piston is appropriately pulled out, so that the negative pressure is generated in the syringe, the piston is stuck in the vertical piston direction of the puncture needle, the piston is fixed, and the puncture needle tip is removed with the forceps.

[0004] The above operation is relatively complicated, therefore, an ear puncture liquid aspirator is urgently needed to meet the treatment needs of the auricle false cyst. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an ear puncture liquid aspirator, which can realize rapid and accurate cyst fluid aspiration, and can also realize negative pressure drainage and drug injection functions, so as to ensure efficient and safe treatment process, reduce the harm of repeated puncture to the patient's auricle, and improve the convenience of operation and the treatment effect.

[0006] The utility model solves the above problems by adopting the following technical scheme: an ear puncture liquid aspirator, comprising a needle tube, one end of the needle tube is provided with a puncture needle, a piston rod is slidably arranged in the inner cavity of the needle tube, and the outer side of the end of the needle tube close to the puncture needle is connected with an elastic medicine bag in communication with the inner cavity thereof.

[0007] Preferably, the medicine bag is provided with a medicine injection port and a one-way air outlet at the upper end.

[0008] Preferably, the injection port is equipped with a sealing cap.

[0009] Preferably, a negative pressure drainage connector is provided on the outer side of the needle tube at a position opposite to the drug capsule.

[0010] Preferably, the puncture needle is connected to a negative pressure drainage connector via an extension tube on the side near the needle tube.

[0011] Preferably, an opening and closing valve is provided at the connection between the negative pressure drainage connector and the extension tube.

[0012] Preferably, the puncture needle is made of a flexible material.

[0013] Compared with the prior art, this utility model has the following advantages and effects:

[0014] This invention, through its integrated drug capsule design on the syringe, eliminates the need for medical personnel to change syringes when drawing medication, reducing the risk of infection associated with syringe replacements. Furthermore, medical personnel no longer need to push or pull the piston rod; simply squeezing the drug capsule allows for irrigation of the patient's cyst cavity, avoiding hand fatigue caused by repeated piston rod movements. This simplifies the procedure and meets the current treatment needs for auricular pseudocysts. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an ear puncture and aspiration device according to an embodiment of this utility model.

[0016] Figure 2 This is a front view of an ear puncture and aspiration device according to an embodiment of this utility model.

[0017] Figure numbers: needle tube 11, puncture needle 12, piston rod 13, drug capsule 14, injection port 21, exhaust port 22, sealing cap 23, negative pressure drainage connector 31, extension tube 32, opening and closing valve 33. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0019] Example: See Figure 1 and Figure 2 In this embodiment, an ear puncture aspirator is used to treat auricular pseudocysts. Specifically, it includes a needle tube 11, a puncture needle 12 at one end of the needle tube 11, a piston rod 13 slidably disposed in the inner cavity of the needle tube 11, and an elastic drug capsule 14 connected to the outer side of the end of the needle tube 11 near the puncture needle 12 and communicating with its inner cavity.

[0020] Specifically, in the embodiment, for the convenience of operation, first, the auricle skin is conventionally disinfected with 0.5% iodophor, then a disposable arterial and venous indwelling needle is punctured and fixed at the most protruding position of the cyst, the puncture needle 12 of the needle cylinder is connected with the indwelling needle, the cyst cavity is cleaned by pulling the piston rod 13, the needle cylinder is removed, the piston rod 13 is pushed to exhaust the cyst liquid in the needle cylinder, the piston rod 13 is pulled and the medicine bag 14 is squeezed, a small amount of medicine liquid in the medicine bag 14 enters the needle cylinder to flush the inner cavity of the needle cylinder and is discharged again (the flushing can be repeated), the needle cylinder is connected with the indwelling needle again. The medicine bag 14 has elasticity and elastic recovery force after being squeezed and deformed, negative pressure effect is generated, the medicine liquid is repeatedly injected and pumped into the cyst cavity by squeezing the medicine bag 14, until the liquid is clear and free of cyst liquid mixture, and finally the medicine liquid in the cyst cavity is pumped as much as possible by the piston rod 13. The medicine liquid stored in the medicine bag 14 in the utility model can be a mixture of 0.9% physiological saline or gentamicin and dexamethasone. The utility model is designed with the medicine bag 14 on the needle cylinder, so that medical staff does not need to replace an additional syringe when pumping the medicine liquid, and the infection risk caused by replacing the syringe is reduced. In addition, medical staff does not need to push and pull the piston rod 13, but can flush the patient's cyst cavity by squeezing the medicine bag 14, so that hand soreness caused by repeatedly pushing and pulling the piston rod 13 is avoided, the operation steps are simplified, and the treatment demand of the current auricle pseudocyst can be met.

[0021] In the embodiment, the medicine bag 14 is provided with a medicine injection port 21 and a one-way air outlet 22 at the upper end. Since the medicine liquid storage capacity of the medicine bag 14 is limited, there may be a situation that the medicine liquid is not enough during flushing. When the medicine liquid in the medicine bag 14 is not enough, medical staff can connect a syringe to the medicine injection port 21 to supplement the medicine liquid in the medicine bag 14 at any time, so as to ensure that the medicine liquid supply will not be interrupted during the flushing process and the effectiveness and continuity of the medicine liquid are guaranteed. In addition, in order to avoid residual air in the medicine bag 14 affecting the injection of the medicine liquid during use, the one-way air outlet 22 is arranged at the upper end of the medicine bag 14. The air outlet 22 is controlled by a one-way valve, which can discharge the air in the medicine bag 14 at the same time of injecting the medicine liquid, so as to realize effective supplement of the medicine liquid in the medicine bag 14.

[0022] The medicine injection port 21 and the air outlet 22 are both provided with a sealing cover 23. The medicine injection port 21 and the air outlet 22 can be closed by the sealing cover 23 when the medicine liquid is not supplemented, so as to avoid leakage of the medicine liquid and prevent dust or other pollutants from entering the medicine bag 14 to cause pollution of the medicine liquid, maintain the sterile environment in the medicine bag 14 and improve the safety of treatment.

[0023] The negative pressure drainage connector 31 is connected with the negative pressure drainage device, and the cystic fluid in the inner cavity of the needle tube 11 can be directly extracted.

[0024] In addition, the puncture needle 12 on the side close to the needle tube 11 is connected with the negative pressure drainage connector 31 through the extension tube 32. Through the arrangement of the extension tube 32, on the one hand, the negative pressure drainage device can directly extract the cystic fluid in the cystic cavity of the patient through the puncture needle 12 when the negative pressure drainage connector 31 is connected with the negative pressure drainage device, and on the other hand, the cystic fluid or mixed liquid in the needle cylinder cannot be completely discharged after the negative pressure drainage connector 31 is blocked by the piston rod 13, and the residual cystic fluid or mixed liquid in the needle cylinder can be discharged from the puncture needle 12 through the extension tube 32. In the embodiment, the puncture needle 12 and the negative pressure drainage connector 31 can both be used for extracting the cystic fluid, and the efficiency of extracting the cystic fluid is further improved.

[0025] The connection part of the negative pressure drainage connector 31 and the extension tube 32 is provided with an open-close valve 33, the open-close valve 33 is used to realize the conduction or cut-off of the extension tube 32, the open-close valve 33 is opened during the process of extracting the cystic fluid through the negative pressure suction device, and the open-close valve 33 is closed after the extraction is completed, then the inner cavity of the needle cylinder is made to have a negative pressure by pulling the piston rod 13, the puncture needle 12 of the syringe is vertically inserted into the piston in the direction of the piston to be clamped, the puncture needle 12 is fixed, the puncture needle 12 is removed by using forceps, the puncture point is covered with sterile dressing, the front part of the auricle is appropriately pressed and bandaged, the syringe tube body is fixed on the back of the auricle, the indwelling needle is pulled out after 7-10 days, and antibiotics are given for 5-7 days after the operation to prevent infection.

[0026] In the embodiment, the puncture needle 12 is made of a flexible material, for example, nylon, silica gel, polyethylene or the like, and can replace the indwelling needle to puncture the cystic part of the auricle of the patient, in addition, the flexible material puncture needle 12 will not cause tissue tearing or trauma like the metal puncture needle 12 when puncturing, and has good biocompatibility and reduces the risk of infection.

[0027] The above description in the specification is only an example of the utility model. The person skilled in the art to which the utility model belongs can make various modifications or supplements or adopt similar ways to replace the described specific embodiments, as long as the content of the specification of the utility model is not deviated or the range defined by the claims is not exceeded, which shall belong to the protection range of the utility model.

Claims

1. An ear puncture aspirator, comprising: The needle tube is provided with a puncture needle at one end, and a piston rod is slidably arranged in the inner cavity of the needle tube.

2. An ear puncture aspirator according to claim 1, wherein: The upper end of the medicine bag is provided with a medicine injection port and a one-way air exhaust port.

3. An ear puncture aspirator according to claim 2, wherein: The medicine injection port and the air exhaust port are both provided with sealing covers.

4. An ear puncture aspirator according to claim 3, wherein: A negative pressure drainage connector is arranged at the position opposite to the medicine bag on the outer side of the needle tube.

5. An ear puncture aspirator according to claim 4, wherein: The puncture needle is connected with the negative pressure drainage connector through an extension tube.

6. An ear puncture aspirator according to claim 5, wherein: An opening and closing valve is arranged at the connection between the negative pressure drainage connector and the extension tube.

7. An ear puncture aspirator according to claim 6, wherein: The puncture needle is made of flexible material.

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