Disposable external auditory canal protective film

Abstract

The utility model provides a disposable external auditory canal protective film. The disposable external auditory canal protective film specifically comprises a peripheral part and an extensible central part, the peripheral part comprises an outer layer membrane and an adhesive layer arranged on the inner side of the outer layer membrane, the adhesive layer is used for adhering and fixing the auricle skin of a person to be operated, and the peripheral part is provided with a through hole allowing an ear rod on a neurosurgery operation head frame to penetrate through; the central part is a bag-shaped film with a first end and a second end, the first end is attached to the periphery of the through hole, and the second end forms a closed blind end which is used for wrapping an ear rod inserted through the through hole and extending into the ear of the patient to be operated. The auditory canal protection device can protect the external auditory canal of a patient, avoid cross infection caused by the ear rod, improve the sanitary level of the external auditory canal, and can perform buffering protection and control the insertion depth of the ear rod.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a disposable external auditory canal protective film. Background Art

[0002] Deep brain stimulation (DBS) is a neurosurgical operation widely used in the treatment of diseases such as Parkinson's disease and dystonia. Before the operation, the patient needs to wear a head frame for magnetic resonance imaging (MRI) scanning for intraoperative positioning. When wearing the head frame, the ear rod needs to be inserted into the patient's external auditory canal as a fulcrum to temporarily support the head frame, and then the head nails are fixed.

[0003] Although medical staff are relatively cautious during the operation of fixing the head nails, as the key fulcrum for stabilizing the head frame and positioning, the operation after inserting the ear rod will still cause great discomfort to the patient and even cause damage to the external auditory canal. And there is residual secretion on the ear rod after the patient uses it. If disinfection is neglected, it will pose a health hazard. When the skin and mucosa of the patient's external auditory canal are damaged, sharing the ear rod is likely to cause cross-infection, and daily disinfection cannot ensure the safety of the patient. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the related art. For this purpose, the utility model provides a disposable external auditory canal protective film.

[0005] The utility model provides a disposable external auditory canal protective film, including:

[0006] An outer peripheral part and an extendable central part;

[0007] The outer peripheral part includes an outer layer film and an adhesive layer provided on the inner side of the outer layer film. The adhesive layer is used for adhesively fixing the auricle skin of the patient to be operated on. The outer peripheral part is provided with a through hole for allowing the ear rod on the neurosurgical head frame to pass through;

[0008] The central part is a bag-shaped film having a first end and a second end. The first end is attached to the periphery of the through hole, and the second end forms a closed blind end for wrapping the ear rod inserted through the through hole and extending into the ear of the patient to be operated on.

[0009] According to the disposable external auditory canal protective film provided by the utility model, the adhesive layer is made of a medical pressure-sensitive adhesive material.

[0010] According to the disposable external auditory canal protective film provided by the utility model, a release paper is further provided on the inner side of the adhesive layer.

[0011] According to the disposable external auditory canal protective film provided by the utility model, the outer peripheral part is of a square structure.

[0012] According to a disposable external auditory canal protective film provided by the present utility model, the central axis of the through hole coincides with the central axis of the square structure.

[0013] According to a disposable external auditory canal protective film provided by the present utility model, the size of the outer peripheral part is 9 cm × 9 cm.

[0014] According to a disposable external auditory canal protective film provided by the present utility model, the outer surface of the central part is smooth.

[0015] According to a disposable external auditory canal protective film provided by the present utility model, the diameter of the through hole is 1 cm.

[0016] According to a disposable external auditory canal protective film provided by the present utility model, the outer layer film is a medical protective film made of polyethylene terephthalate.

[0017] A disposable external auditory canal protective film provided by the present utility model can be adhered to the patient's skin through the adhesive material of the adhesive layer for preliminary fixation. Subsequently, through the ductility of the central part, it wraps the ear rod and inserts it into the ear canal, and can establish a protective layer based on the disposable external auditory canal protective film provided by the present utility model between the ear rod and the patient's skin. It can not only improve the hygiene level of the external auditory canal and protect the patient's external auditory canal, but also the central part with ductility plays a role in buffering protection and depth control, and can improve the fixing accuracy of the ear rod and the headrest.

[0018] Some additional aspects and advantages of the present utility model will be given in the following description, some will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is a schematic three-dimensional structure diagram of a disposable external auditory canal protective film provided by an embodiment of the present utility model;

[0021] Figure 2 is a schematic top view structure diagram of a disposable external auditory canal protective film provided by an embodiment of the present utility model;

[0022] Figure 3 is a schematic diagram of the use state of a disposable external auditory canal protective film provided by an embodiment of the present utility model;

[0023] Figure 4It is a schematic diagram of the ear physiological structure provided by the embodiment of the present utility model.

[0024] Reference numerals:

[0025] 100, outer peripheral part; 200, central part; 300, ear rod;

[0026] 110, outer layer film; 120, adhesive layer; 130, through hole. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without making creative efforts shall fall within the protection scope of the present utility model. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0028] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0029] The following combines Figures 1 to 3 to describe the embodiments of the present utility model.

[0030] The present utility model provides a disposable external auditory canal protective film, including:

[0031] An outer peripheral part 100 and an extendable central part 200.

[0032] Furthermore, the central part is a bag-shaped film made of a stretchable elastic medical material. The elastic medical material can be traditional natural rubber, latex, and silicone materials. Preferably, medical polymer materials such as polyurethane (PU) and thermoplastic elastomer (TPE) with low bending modulus, high tensile strength, and high ductility, which have gradually replaced these traditional materials in recent years, are used. The bag-shaped film can elastically stretch. When the ear rod extends into the ear canal, it can wrap the ear rod to isolate the ear rod from the patient's external auditory canal and play a certain buffering and protective role. As Figure 1 and Figure 2 shown, the peripheral part 100 includes an outer layer film 110 and an adhesive layer 120 provided on the inner side of the outer layer film 110. The adhesive layer 120 is used to bond and fix the auricle skin of the patient to be operated on. The peripheral part 100 is provided with a through hole 130 for allowing the ear rod on the neurosurgical head frame to pass through.

[0033] In a specific embodiment, the neurosurgical head frame is a Mayfield three-point head frame.

[0034] Furthermore, the peripheral part is a double-layer structure. The adhesive layer is the layer in contact with the patient's skin during use, which plays a role in bonding the patient's skin to fix the overall external auditory canal protective film. The peripheral part is provided with a through hole penetrating the outer layer film and the adhesive layer. During use, the fixing ear rod is inserted through the through hole and enters the peripheral part provided at the connection of the through hole.

[0035] Among them, the adhesive layer 120 is made of a medical pressure-sensitive adhesive material, and a release paper is also provided on the inner side of the adhesive layer 120.

[0036] Furthermore, the adhesive layer can be made of a medical pressure-sensitive adhesive. The medical pressure-sensitive adhesive can be a natural rubber-based, synthetic rubber-based medical pressure-sensitive adhesive, or an olefin polymer pressure-sensitive adhesive (for example, polyvinyl phenyl ether and polyacrylate pressure-sensitive adhesives), etc. It can bond the patient's skin and fix the relative position of the overall external auditory canal protective film to the patient's skin, thereby fixing the position of the central film for more convenient, faster, and more accurate ear rod insertion and related fixing work.

[0037] Among them, the peripheral part 100 is a square structure.

[0038] Furthermore, the peripheral part in the external auditory canal protective film is generally a square structure. During use, it can be cut according to the patient's body posture, but it is necessary to ensure that the adhesive layer has sufficient contact area with the patient's skin for corresponding fixation.

[0039] Among them, the central axis of the through hole 130 coincides with the central axis of the square structure.

[0040] Furthermore, the center of the through hole is coincident with the center of the square structure, that is to say, the center of the through hole is coincident with the center of the outer layer film. Such a setting helps to determine the bonding position of the external auditory canal protective film more quickly, and further supports the improvement of the confirmation speed and accuracy of the insertion position of the ear rod and the fixing position of the head frame.

[0041] Among them, the size of the peripheral part 100 is 9 cm * 9 cm.

[0042] Furthermore, the peripheral part is set as a square structure with a side length of 9 cm, which is more suitable for patients of medium build. It is convenient to find the bonding position during bonding and fixing, and can make the bonding area of the adhesive layer larger.

[0043] Among them, the diameter of the through hole 130 is 1 cm.

[0044] Furthermore, the diameter of the through hole is set to be equivalent to the diameter of the ear rod, so as to accommodate the ear rod to insert into the central part through the through hole and extend into the patient's ear together.

[0045] Among them, the outer layer film 110 is a medical protective film made of polyethylene terephthalate.

[0046] Furthermore, the material of the outer layer film can be selected from a medical protective film made of polyethylene terephthalate (PET) or a high molecular polymer protective film made of medical grade high molecular weight poly-L-lactide-caprolactone (PLCL), polytetrafluoroethylene (PTFE) and ultra-high molecular weight polyethylene (UHMWPE). It has wear resistance on the premise of smoothness, not only ensures that it is not easy to break during long-term use, but also can effectively isolate the contact between the skin and the outside world, and reduce the irritation of the physical and chemical properties and biological bacteria of the ear rod to the skin.

[0047] The central part 200 is a bag-shaped film with a first end and a second end. The first end is attached to the periphery of the through hole 130, and the second end forms a closed blind end for wrapping the ear rod inserted through the through hole 130 and extending into the ear of the patient to be operated on.

[0048] Furthermore, the central part is a cylindrical structure in a tubular form. The bottom end of the central part, that is, the first end of the central part mentioned above, is a closed structure and is arc-shaped. The top end of the central part, that is, the second end of the central part mentioned above, is communicated with the through hole. The ear rod enters the central part through the through hole, and the ear rod is wrapped by the central part film body and the bottom end of the central part and extends into the patient's ear, which can play a certain role in buffer protection and insertion depth control.

[0049] Among them, the central part 200 is hung vertically.

[0050] Furthermore, the central part is generally a cylindrical structure in a tubular form and is suspended. After the adhesive layer adheres to and fixes the skin as described above, the central part can be placed in the position of the patient's external auditory canal in a forward direction, preventing damage to the human structures around the external auditory canal when the ear rod is inserted.

[0051] Among them, the outer surface of the central part 200 is smooth.

[0052] Furthermore, the skin of the cartilaginous part of the external auditory canal is rich in hair follicles and special sebaceous glands. The central part is set to have a smooth outer surface, that is, the surface in contact with the external auditory canal is a smooth surface, which can provide a certain lubricating effect when the central part wraps the ear rod and enters the external auditory canal, reducing the pain of the patient. Moreover, the smooth surface reduces the friction and irritation of external substances on the ear canal skin, reducing the risk of damage to the ear canal skin.

[0053] As Figure 3 shown, during the use of a disposable external auditory canal protective film provided by the present utility model, first, remove the adhesive protective film on the adhesive layer side of the external auditory canal protective film, bring the position of the central part close to the position of the patient's external auditory canal, and bond it, so that the central part initially extends into the patient's external auditory canal. When the entire external auditory canal protective film is fixed, that is, when the entire external auditory canal protective film does not change its relative position with the patient's skin and the central part does not change its relative position with the patient's external auditory canal, insert the ear rod into the through hole, and then insert the central part into the external auditory canal. The expanded central part will wrap the ear rod and enter the external auditory canal together with the inserted ear rod according to the shape and insertion length of the ear rod. When the ear rod is inserted into the designated position, fix the head frame, pull out the ear rod and discard the external auditory canal protective film.

[0054] As Figure 4 shown is a schematic diagram of the physiological and anatomical structure of the human ear, the use environment of a disposable external auditory canal protective film provided by the present utility model. From the outside to the inside, there are the outer ear, middle ear, and inner ear in sequence. During the use of the protective film of the present utility model, the expanded central part will wrap the ear rod and enter the external auditory canal together with the inserted ear rod according to the shape and insertion length of the ear rod. Limited by the length of the central part, the ear rod will enter an appropriate length into the external auditory canal without damaging the eardrum. And in the external auditory canal, the protective film of the present utility model will form a protective layer between the ear rod and the external auditory canal, preventing cross-infection and damage to the external auditory canal by the ear rod.

[0055] A disposable external auditory canal protective film provided by the present utility model can prevent the health hazards caused by incomplete disinfection of the ear rod, establish a protective barrier between the ear rod and the patient's external auditory canal, protect the patient's external auditory canal, improve the hygiene level of the external auditory canal. In addition, the central part can also provide a certain buffering effect and control the insertion depth of the ear rod, and can provide a basis for the positioning of the head frame that the patient needs to wear before deep brain stimulation surgery, fit the ear rod into the external auditory canal deeply, and reduce the discomfort of the patient.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A disposable external auditory canal protective membrane, characterized in that: include: The peripheral part and the extensible central part; The peripheral part includes an outer membrane and an adhesive layer arranged on the inner side of the outer membrane, the adhesive layer is used to adhere and fix the auricle skin of the patient to be operated, and the peripheral part is provided with a through hole for allowing the ear rod on the neurosurgery head frame to pass through; The central portion is a bag-shaped membrane having a first end and a second end, wherein the first end is attached to the periphery of the through hole, and the second end forms a closed blind end for wrapping the ear stem inserted through the through hole and extending into the ear of the patient.

2. A disposable external auditory canal protective membrane according to claim 1, characterized in that: The adhesive layer is made of medical pressure-sensitive adhesive material.

3. A disposable external auditory canal protective membrane according to claim 1, characterized in that: The adhesive layer is also provided with release paper.

4. The disposable external auditory canal protective membrane according to claim 1, characterized in that: The outer peripheral portion is a square structure.

5. A disposable external auditory canal protective membrane according to claim 4, characterized in that: The central axis of the through hole coincides with the central axis of the square structure.

6. A disposable external auditory canal protective membrane according to claim 4, characterized in that: The size of the outer periphery is 9cm*9cm.

7. The disposable external auditory canal protective membrane according to claim 1, characterized in that: The outer surface of the central portion is smooth.

8. The disposable external auditory canal protective membrane according to claim 1, characterized in that: The through hole has a diameter of 1 cm.

9. The disposable external auditory canal protective membrane according to claim 1, characterized in that: The outer film is a medical protective film made of polyethylene terephthalate.

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