CN215273842U

CN215273842U - Middle ear tympanic membrane puncturing assembly

Info

Publication number: CN215273842U
Application number: CN202121234400.0U
Authority: CN
Inventors: 许胜恩; 袁野
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-12-24
Anticipated expiration: 2031-06-03

Abstract

The utility model discloses a middle ear tympanic membrane puncture assembly, including ear endoscope and puncture needle subassembly, wherein puncture needle subassembly includes metal needle tubing and is located the plastic envelope needle handle of this metal needle tubing tail end, and the front end of ear endoscope is equipped with the fixing base, has the block structure of mutually supporting between this fixing base and the plastic envelope needle handle, and puncture needle subassembly can be through block structure and fixing base block to make its metal needle tubing front end outburst to the place ahead of ear endoscope, plastic envelope needle handle intercommunication has main hose, and the trailing end connection of main hose has the three-way valve. The utility model has the advantages of simple operation, less puncture complications, disposable operation of sucking liquid and injecting medicine, and avoidance of repeated puncture to cause secondary damage.

Description

Middle ear tympanic membrane puncturing assembly

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to middle ear tympanic membrane puncture subassembly.

Background

Secretory otitis media is a common disease and frequently-occurring disease of ear, nose, throat, head and neck surgery, mainly suffers from hearing loss, earache, ear stuffiness and swelling feeling and tinnitus of ears, and is detected to be yellowish or amber when effusion occurs in eardrums or to be visible in an arc liquid plane. Secretory otitis media should be treated as soon as possible in time, complications are reduced, hearing is improved, transformation into chronic secretory otitis media and suppurative otitis media is avoided, and hearing is affected after long-term recovery, which can seriously cause speech development retardation of children patients. The treatment principle mainly comprises the following steps: clear away middle ear effusion, improve ventilation condition in the tympanic cavity, strengthen drainage of endocrine in the tympanic cavity, and promote recovery of movement of tympanic mucosa epithelium and cilia. The conservative treatment comprises the methods of middle ear antibiosis and antiphlogosis, antianaphylaxis, hormone, nasal cavity decongestant, eustachian tube blow-open and the like. But the disease is easy to recur, and some patients can develop adhesive ears and tympanum adhesion. The surgical treatment modes comprise: tympanocentesis, myringotomy and myringotomy catheterization.

In recent years, an otoscope is rapidly popularized and applied in otology, so that tympanocentesis liquid extraction becomes a common and simple and feasible treatment method for otology outpatient service. At present, most of the clinical ascending tympanic membrane puncture operations are completed by a 2.5 ml syringe and a No. 7 long needle under frontal endoscopic vision or otoendoscopy. During puncture, an operator holds the otoscope and the injector with one hand, pierces the needle into the tympanic cavity, extracts effusion in the tympanic cavity and injects medicine into the tympanic cavity. However, when liquid is pumped, the two hands operate simultaneously, the content of the narrow and tortuous external auditory canal is easy to shake, the puncture needle is easy to accidentally injure the wall and tympanic membrane of the external auditory canal, serious complications such as acute external otitis externa, tympanic membrane large perforation, secondary suppurative otitis media and the like can be caused, and the accuracy of operation is difficult to ensure; when the injection, need puncture injection again, constantly change the apparatus for complex operation is troublesome, wastes time and energy, and causes secondary damage easily.

Based on this, the applicant considered to design a middle ear tympanic membrane puncturing assembly to solve the above technical problem.

Disclosure of Invention

The utility model provides a not enough to above-mentioned prior art, the utility model provides a middle ear tympanic membrane puncture subassembly to solve the operation of middle ear tympanic membrane puncture in the prior art and need both hands cooperation, difficult operation, accidentally injures external auditory canal wall, tympanic membrane in the operation process, and need carry out the secondary puncture when annotating the medicine, troublesome poeration easily causes the problem of secondary damage.

In order to solve the technical problem, the utility model discloses a following technical scheme:

middle ear tympanic membrane puncture assembly, including ear endoscope and puncture needle subassembly, wherein puncture needle subassembly includes metal needle tubing and is located the plastic envelope needle handle of this metal needle tubing tail end, and the key lies in:

the front end of the otoscope is provided with a fixed seat, a mutually matched clamping structure is arranged between the fixed seat and the plastic package needle handle, the puncture needle assembly can be clamped with the fixed seat through the clamping structure, the front end of a metal needle tube of the puncture needle assembly protrudes to the front of the otoscope, the plastic package needle handle is communicated with a main hose, and the tail end of the main hose is connected with a three-way valve.

By adopting the scheme, the plastic-packaged needle handle of the puncture needle assembly is matched and fixed through the clamping structure on the fixing seat, so that the puncture needle assembly and the otoscope are integrated into a whole, a doctor can operate with one hand, and the otoscope and the puncture needle assembly are conveyed into an external auditory canal; the two ends of the main hose are respectively connected with the plastic package needle handle and the three-way valve, and the three-way valve can be respectively connected with an injector for sucking liquid in the tympanic cavity and an injector for injecting medicine into the tympanic cavity, so that the puncture needle assembly does not need to be pulled out, and the apparatus for injecting medicine is replaced again.

Preferably, the clamping structure comprises a clamping groove formed in the length direction of the fixed seat, the front end and the rear end of the clamping groove are open, a clamping inlet formed in the length direction of the clamping groove is formed in the fixed seat, and the diameter of the clamping groove is smaller than that of the plastic package needle handle; the plastic packaging needle comprises a plastic packaging needle handle, and is characterized in that a limiting ring groove concentrically arranged with the plastic packaging needle handle is arranged in the clamping groove, and when the puncture needle assembly is clamped into the clamping groove, the front end and the rear end of the plastic packaging needle handle are respectively abutted against two end faces of the limiting ring groove.

By adopting the scheme, during installation, the plastic-sealed needle handle is embedded into the limit ring groove through the clamping opening on the clamping groove by force, and the length direction and the circumferential direction of the needle handle are limited; the puncture needle assembly is fixed, and the operation is convenient.

Preferably, one side of the plastic package needle handle is provided with an anti-rotation plane, and the outer contour of the limiting ring groove is matched with the outer contour of the plastic package needle handle.

By adopting the scheme, the plastic package needle handle is further limited in the circumferential direction, so that the plastic package needle handle is prevented from rotating in the limiting groove, and the structure is simple.

Preferably, the clamping structure comprises a tapered hole formed in the length direction of the fixing seat, the diameter of the front end of the tapered hole is the smallest, the plastic package needle handle is in a tapered column shape, and the diameter of the front end of the tapered hole is smaller than the smallest diameter of the plastic package needle handle.

By adopting the scheme, when the puncture needle assembly is installed, the puncture needle assembly is embedded into the conical hole from one side of the rear end of the endoscope, and the plastic package needle handle is pushed forcefully to be embedded into the conical hole and clamped tightly due to the fact that the diameter of the front end of the conical hole is smaller than the minimum diameter of the plastic package needle handle, so that the puncture needle assembly is fixed; the structure is simpler.

Preferably, the fixing base is made of a metal material.

By adopting the scheme, the fixing seat adopts a structure similar to a metal hoop, so that the structure is more ideal, the cohesive force is larger, the service life is more durable, and the clinical sterile disinfection requirements are facilitated.

Preferably, the central axis of the metal needle tube is inclined towards the central axis of the fixing seat, and the front end of the metal needle tube is positioned right in front of the visual field of the otoendoscope.

By adopting the scheme, when the puncture needle assembly is fixed on the fixing seat through the clamping structure, the front end of the metal needle tube of the puncture needle assembly is ensured to be positioned right ahead of the visual field of the otoscope, so that the puncture needle assembly is convenient for a doctor to perform operations such as puncture, and the reliability during operation is ensured.

Preferably, when the lancet assembly is fixed to an otoscope, the distal edge of the lancet assembly faces the central axis of the otoscope.

By adopting the scheme, the puncture needle assembly can conveniently puncture into the tympanic cavity.

Preferably, the length of the main hose is 4-8 cm.

By adopting the scheme, the three-way valve connected with the main hose is positioned outside the external auditory canal, the damage to the external auditory canal by the three-way valve is avoided, and the normal use of the otoscope is not influenced.

Preferably, an extension pipe a and an extension pipe B are respectively connected to two valve ports of the three-way valve, and the ends of the extension pipe a and the extension pipe B are respectively provided with a joint capable of being matched with a syringe.

Scheme more than adopting, can be in advance with the syringe of preparing the suction and the syringe that is equipped with the medicine be connected with extension pipe A and the extension pipe B that corresponds through the joint, because extension pipe A and extension pipe B's setting is convenient for place the syringe on the workstation, the use of taking fast of convenient operation.

Preferably, the fixed seat is detachably connected with the ear endoscope.

By adopting the scheme, the position of the fixing seat can be adjusted along the length direction of the ear endoscope, so that the length of the front end of the metal needle tube protruding out of the ear endoscope can be adjusted, and different use requirements are met.

Compared with the prior art, the utility model discloses the beneficial technological effect who has:

the plastic package needle handle of the puncture needle assembly is matched and fixed through the clamping structure on the fixing seat, so that the puncture needle assembly and the otoscope are integrated into a whole, a doctor can operate with one hand, and the otoscope and the puncture needle assembly are conveyed into an external auditory canal; the two ends of the main hose are respectively connected with a plastic package needle handle and a three-way valve, two valve ports of the three-way valve are respectively connected with an extension pipe A and an extension pipe B, and both the two valve ports are provided with joints capable of being matched with an injector; thus, the syringe to be sucked and the syringe filled with the medicine are connected with the corresponding extension pipe A and the extension pipe B through the joints in advance, and the operations of sucking the liquid and injecting the medicine can be realized at one time by controlling the opening and closing of the corresponding valve ports of the three-way valve. The operation is convenient, the damage of the traditional long puncture needle to the external auditory canal wall and the tympanic membrane is reduced, and the secondary damage caused by multiple punctures is avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged view of fig. 1 at C.

Fig. 3 is an enlarged view of fig. 1 at D.

Fig. 4 is a schematic cross-sectional structure of fig. 2.

Fig. 5 is a schematic structural view of the fixing base of the present invention.

Fig. 6 is a schematic structural view of the puncture needle assembly of the present invention.

Fig. 7 is a schematic structural diagram of a second embodiment of the fastening structure of the present invention.

Fig. 8 is a schematic view of the overall structure of the present invention.

Fig. 9 is a schematic view of the usage state of the present invention.

Labeled as:

1, an ear endoscope; 2, a metal needle tube; 3 plastic packaging the needle handle; 4, fixing a base; 5 a main hose; 6, a three-way valve; 7, a clamping groove; 8, a card inlet; 9, limiting ring grooves; 10 anti-rotation plane; 11 a tapered hole; 12 an extension tube A; 13 an extension tube B; 14 mounting surface.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the specific implementation:

as shown in fig. 1 to 8, the middle ear tympanic membrane puncturing assembly comprises an ear endoscope 1 and a puncturing needle assembly, wherein the puncturing needle assembly comprises a metal needle tube 2 and a plastic package needle handle 3 located at the tail end of the metal needle tube 2, a fixing seat 4 is arranged at the front end of the ear endoscope 1, a mutually matched clamping structure is arranged between the fixing seat 4 and the plastic package needle handle 3, the puncturing needle assembly can be clamped with the fixing seat 4 through the clamping structure, the front end of the metal needle tube 2 protrudes to the front of the ear endoscope 1, the plastic package needle handle 3 is communicated with a main hose 5, and the tail end of the main hose 5 is connected with a three-way valve 6.

The clamping structure comprises a clamping groove 7 formed in the length direction of the fixed seat 4, the front end and the rear end of the clamping groove 7 are open, a clamping opening 8 formed in the length direction of the clamping groove 7 is formed in the fixed seat 4, and the diameter of the clamping groove 7 is smaller than that of the plastic package needle handle 3; the clamping groove 7 is internally provided with a limiting ring groove 9 which is concentric with the clamping groove, and when the puncture needle assembly is clamped into the clamping groove 7, the front end and the rear end of the plastic package needle handle 3 are respectively abutted against two end faces of the limiting ring groove 9. Meanwhile, one side of the plastic package needle handle 3 is provided with an anti-rotation plane 10 as shown in fig. 4 and 6, and the outer contour of the limiting ring groove 9 is matched with the outer contour of the plastic package needle handle 3, that is, the limiting ring groove 9 is provided with a mounting surface 14 (a shaded plane as shown in fig. 5) correspondingly matched with the anti-rotation plane 10.

Therefore, the plastic package needle handle 3 of the puncture needle assembly is matched and fixed through the clamping structure on the fixing seat 4, and during installation, the plastic package needle handle 3 is embedded into the limiting ring groove 9 through the clamping inlet 8 on the clamping groove 7 by force and is matched with the anti-rotation plane 10, namely the anti-rotation plane 10 is contacted with the installation surface 14; limiting the plastic package needle handle 3 in the length direction and the circumferential direction; namely, the puncture needle assembly is prevented from being separated and rotated, and the fixation of the puncture needle assembly is finally realized, so that the operation is convenient and fast. Thus, the puncture needle assembly and the otoscope 1 are integrated into a whole, a doctor can operate with one hand, and simultaneously the otoscope 1 and the puncture needle assembly are sent into an external auditory canal; the two ends of the main hose 5 are respectively connected with the plastic package needle handle 3 and the three-way valve 6, and the three-way valve 6 can be respectively connected with an injector for sucking liquid in the tympanic cavity and an injector for injecting medicine into the tympanic cavity, so that the puncture needle assembly does not need to be pulled out, the apparatus for injecting medicine is replaced again, and secondary damage caused by multiple punctures is avoided.

Meanwhile, the fixing seat 4 in the embodiment is made of a metal material with certain elasticity, so that the structure similar to a metal hoop is more ideal, the cohesive force is larger, the service life is longer, and the clinical sterile disinfection requirements can be conveniently met.

As another embodiment of the engaging structure, as shown in fig. 7, the engaging structure includes a tapered hole 11 formed along the length direction of the fixing base 4, the diameter of the front end of the tapered hole 11 is the smallest, the plastic encapsulated needle handle 3 is in a tapered column shape, and the diameter of the front end of the tapered hole 11 is smaller than the smallest diameter of the plastic encapsulated needle handle 3.

Therefore, when the puncture needle assembly is installed, the puncture needle assembly is embedded into the tapered hole 11 from one side of the rear end of the otoscope 1, and the plastic package needle handle 3 is pushed forcefully to be embedded into the tapered hole 11 and clamped to realize the fixation of the puncture needle assembly as the diameter of the front end of the tapered hole 11 is smaller than the minimum diameter of the plastic package needle handle 3; the clamping structure is simpler and more convenient to install due to the scheme structure; but the former mode of comparison, it is not good to the spacing effect of needle handle length direction, appears becoming flexible after the repetitious usage and drops easily, influences the reliability of using.

Meanwhile, for the embodiment of the second clamping structure, the fixing seat 4 is made of a plastic material better, so that the friction force between the tapered hole 11 and the plastic package needle handle 3 is larger, namely the puncture needle assembly can be effectively prevented from being disengaged and rotating.

In the scheme, as shown in fig. 8, when the puncture needle assembly is fixed on the fixing base 4 through the clamping structure, the central axis of the metal needle tube 2 is inclined towards the central axis of the fixing base 4, and the front end of the metal needle tube is positioned right in front of the visual field of the otoscope 1, so that the puncture needle assembly is convenient for a doctor to perform operations such as puncture, and the reliability during the operation is ensured. During implementation, the central axis of the metal needle tube 2 can incline towards the central axis of the fixing seat 4 by obliquely arranging the fixing seat 4. Meanwhile, when the puncture needle assembly is fixed on the otoscope 1 as shown in fig. 8, the front end cutting edge faces the central axis of the otoscope 1, so that a doctor can conveniently and accurately grasp the front end position of the puncture needle assembly from the visual field of the otoscope, the puncture accuracy is improved, and secondary damage is avoided. Besides the way of installing the fixed seat 4 in an inclined way, the clamping groove 7 or the tapered hole 11 can be directly arranged in an inclined way, so that the purpose is achieved.

In the scheme, the length of the main hose 5 is 4-8 cm, the three-way valve 6 connected with the main hose 5 is ensured to be positioned near the outer side of the external auditory canal, and during implementation, the length of the main hose 5 is slightly longer than the length of the external auditory canal, so that the normal use of the otoscope 1 is not influenced, and the operation of a doctor is facilitated. Meanwhile, as shown in fig. 1 and 8, an extension tube a12 and an extension tube B13 are connected to two valve ports of the three-way valve 6, respectively, and the ends of the extension tube a12 and the extension tube B13 are provided with connectors capable of being matched with a syringe. Thus, the syringe to be aspirated and the syringe containing the drug may be previously connected to the corresponding extension tube a12 and extension tube B13 through connectors, as shown in fig. 9; because the setting of extension A12 and extension B13 is convenient for place the syringe on the workstation, the use of taking fast of convenient operation.

In addition, in the present embodiment, the fixing base 4 is detachably connected to the ear endoscope 1 as a preferable mode. When the ear endoscope is implemented, the fixing seat 4 can be arranged on the plastic sleeve, the diameter of the plastic sleeve is smaller than that of the ear endoscope 1, namely, the plastic sleeve can be sleeved on the ear endoscope 1 by force, and the position of the plastic sleeve, namely the fixing seat 4 can be adjusted along the length direction of the ear endoscope 1 by force according to different use requirements, so that the length of the front end of the metal needle tube 2 protruding to the front of the ear endoscope 1 can be adjusted; meanwhile, the acting force for adjusting the plastic sleeve is required to be greater than the acting force generated when the puncture needle assembly punctures, so that the plastic sleeve is prevented from sliding on the otoscope 1 randomly during operations such as puncturing and the like.

The utility model discloses a theory of operation:

when in use, the plastic package needle handle 3 is firstly forcibly embedded into the limiting ring groove 9 through the clamping inlet 8 on the clamping groove 7 and matched with the anti-rotation plane 10, namely the anti-rotation plane 10 is contacted with the mounting surface 14; limiting the plastic package needle handle 3 in the length direction and the circumferential direction; the puncture needle assembly is prevented from falling off and rotating, and the fixation of the puncture needle assembly is finally realized, so that the operation is convenient and fast; then connecting the syringe to be sucked and the syringe filled with the medicine with the corresponding extension tube A12 and extension tube B13 through connectors;

then, the doctor can hold the otoscope 1 to extend into the external auditory canal of the patient to perform tympanocentesis, the puncture is finished, when liquid needs to be pumped, the doctor operates the three-way valve 6 to enable the extension pipe A12 to be communicated with the main hose 5, and then the suction is finished through the correspondingly connected injector; after the liquid is pumped out, the medicine can be injected only by controlling the three-way valve 6 to enable the extension tube B13 to be communicated with the main hose 5; the operation of sucking liquid and injecting medicine is realized at one time, the operation is convenient, and secondary damage caused by multiple times of puncture is avoided.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the technical scope of the present invention, and the technical scope of the present invention should also be considered as falling within the scope of the present invention.

Claims

1. Middle ear tympanic membrane puncture assembly, including ear endoscope and puncture needle subassembly, wherein puncture needle subassembly includes metal needle tubing and is located the plastic envelope needle handle of this metal needle tubing tail end, its characterized in that:

2. A middle ear tympanic membrane puncturing assembly according to claim 1, wherein: the clamping structure comprises a clamping groove formed in the length direction of the fixed seat, the front end and the rear end of the clamping groove are open, a clamping inlet formed in the length direction of the clamping groove is formed in the fixed seat, and the diameter of the clamping groove is smaller than that of the plastic package needle handle; the plastic packaging needle comprises a plastic packaging needle handle, and is characterized in that a limiting ring groove concentrically arranged with the plastic packaging needle handle is arranged in the clamping groove, and when the puncture needle assembly is clamped into the clamping groove, the front end and the rear end of the plastic packaging needle handle are respectively abutted against two end faces of the limiting ring groove.

3. A middle ear tympanic membrane puncturing assembly according to claim 2, wherein: one side of the plastic package needle handle is provided with an anti-rotation plane, and the outline of the limiting ring groove is matched with the outline of the plastic package needle handle.

4. A middle ear tympanic membrane puncturing assembly according to claim 1, wherein: the clamping structure comprises a tapered hole formed in the length direction of the fixing seat, the diameter of the front end of the tapered hole is the smallest, the plastic package needle handle is in a tapered column shape, and the diameter of the front end of the tapered hole is smaller than the smallest diameter of the plastic package needle handle.

5. A middle ear tympanic membrane puncturing assembly according to claim 2 or 3, wherein: the fixing seat is made of metal materials.

6. A middle ear tympanic membrane penetration assembly according to any one of claims 2-4, wherein: the central axis of the metal needle tube is inclined towards the central axis of the fixing seat, and the front end of the metal needle tube is positioned right in front of the visual field of the otoscope.

7. A middle ear tympanic membrane puncturing assembly according to claim 1, wherein: when the puncture needle assembly is fixed on the ear endoscope, the front end cutting edge faces to the central axis of the ear endoscope.

8. A middle ear tympanic membrane puncturing assembly according to claim 1, wherein: the length of the main hose is 4-8 cm.

9. A middle ear tympanic membrane puncturing assembly according to claim 1, wherein: two valve openings of the three-way valve are respectively connected with an extension pipe A and an extension pipe B, and the end parts of the extension pipe A and the extension pipe B are respectively provided with a joint which can be matched with an injector.

10. A middle ear tympanic membrane puncturing assembly according to claim 1, wherein: the fixed seat is detachably connected with the ear endoscope.