Novel tympanic membrane electrode
By designing a new type of tympanic electrode with soft introduction cannula and pre-wet cotton ball electrode, the problem of deep identification of patients' pain and introduction is solved, and the operation is simplified and signal acquisition is reliable, avoiding eardrum damage and complex operations.
Patent Information
- Application Number
- CN202420784171.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-16
AI Technical Summary
Existing tympanic electrodes are prone to cause pain in the patient during use, complex operation and inability to identify the depth of the introduction, resulting in damage to the eardrum or poor signal acquisition.
A new type of tympanic membrane electrode including a soft introduction sleeve, a pre-wet cotton ball electrode and a scale mark is designed. The outer diameter of the introduction sleeve is larger than the inner diameter of the cap, the curved hook is connected to the conductor, and the introduction sleeve is wrapped outside the pin. The introduction depth is determined by the scale mark, and the fixed tube is tightened to form a sealed state.
It reduces the pain in the patient, simplifies the operation of medical staff, ensures the electrodes are introduced correctly, avoids damage to the eardrum and signal collection, and can be used without soaking sodium chloride solution.
Smart Images
Figure CN222172134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrodes, in particular to a novel tympanic membrane electrode. Background Art
[0002] Tympanic membrane electrodes are important medical devices used in electrocochlear electrography. Most tympanic membrane electrodes on the market usually use silver beads or other harder materials for contact electrodes, and the insulating sleeves are made of silicone but the tail is not processed. Since the tympanic membrane electrodes need to be placed in the patient's external auditory canal, they are prone to cause pain to the patient during use.
[0003] When using it, the head end collection electrode (such as cotton wool) needs to be soaked in sodium chloride saline before use, and even worse, it needs to be drained before use. The operation is complicated, time-consuming and laborious, and cannot meet the principle of medical staff to disassemble and use. Secondly, the depth of the existing eardrum electrode introduced into the external auditory canal cannot be identified. If the medical staff cannot observe the introduction depth, blind introduction will cause damage to the eardrum if it is introduced too deep, and will affect signal collection if it is introduced too shallowly.
[0004] In response to the problems in the above-mentioned background technology, the present application aims to provide a tympanic membrane electrode that can reduce the patient's pain or discomfort during examination, and at the same time allows medical staff to disassemble it for use and identify the insertion depth, with a simple and reliable structure and easy use. Utility Model Content
[0005] The utility model aims at the problems and shortcomings of the prior art and provides a novel tympanic membrane electrode.
[0006] The utility model solves the above technical problems through the following technical solutions:
[0007] The utility model provides a novel eardrum electrode, which is characterized in that it comprises an insertion pin, a conductor, a fixing tube, an introduction sleeve, a protective cap and a collection electrode, wherein the introduction sleeve is a soft introduction sleeve, the outer diameter of the introduction sleeve is larger than the inner diameter of the protective cap, the collection electrode is a pre-moistened cotton ball electrode, the right end of the insertion pin is welded to the left end of the conductor, a hook portion is provided at the right end of the conductor, the distance between the top and the bottom of the hook portion is equal to the inner diameter of the introduction sleeve, the introduction sleeve is wrapped around the outside of the conductor and extends to wrap around the outside of the right part of the insertion pin, and the collection electrode is a pre-moistened cotton ball electrode. The introduction sleeve is interference fit with the insertion pin, and the connection between the insertion pin and the introduction sleeve is wrapped and tightened by a fixing tube. The rightmost part of the hook portion is close to the right end opening of the introduction sleeve, and the collection electrode is hung on the hook portion and passed through the right end opening of the introduction sleeve and placed outside the introduction sleeve. The body of the introduction sleeve is provided with equally spaced scale marking portions and a smooth portion is formed at the right end. The introduction sleeve is squeezed along the smooth portion and extends into the interior of the protective cap to form a fixed connection through interference fit. At this time, the collection electrode is completely wrapped inside the protective cap to form a sealed state.
[0008] 1. Solve the pain and discomfort of the patient's examination site caused by the product itself during the examination:
[0009] a. The collection electrode is a pre-moistened cotton ball electrode, which is soft and smooth and will not cause pain or discomfort when touching the examination site;
[0010] b. The introduction cannula has a special processing technology to make one end of the R angle smoother, which will not cause pain or discomfort when it comes into contact with the patient's external auditory canal.
[0011] 2. Medical staff can observe the scale marks around the introduction sleeve to determine the position of the electrode entering the external auditory canal, to avoid too deep introduction causing damage to the eardrum, and too shallow introduction affecting signal collection.
[0012] 3. The collection electrode is a pre-moistened cotton ball electrode. When using it, just remove the protective cap and it can be used without soaking in sodium chloride solution. It is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is an assembly cross-sectional view of a novel tympanic membrane electrode according to a preferred embodiment of the utility model.
[0014] Figure 2 A partial schematic diagram of the introduction sleeve of the new tympanic membrane electrode according to a preferred embodiment of the utility model. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0016] like Figure 1-2 As shown, this embodiment provides a new type of tympanic membrane electrode, which includes a needle 1, a conductor 2, a fixing tube 3, an introduction sleeve 4, a protective cap 5 and a collection electrode 6.
[0017] The introduction sleeve 4 is a soft introduction sleeve made of soft material; the outer diameter of the introduction sleeve 4 is slightly larger than the inner diameter of the protective cap 5; the collection electrode 6 is elliptical, and the collection electrode 6 is a pre-wetted cotton ball electrode, and its wetting liquid is sodium chloride solution, which is sealed and preserved by the protective cap 5.
[0018] The right end of the pin 1 is welded to the left end of the conductor 2, and a hook portion 21 is provided at the right end of the conductor 2. The hook portion 21 is composed of a hook with an opening facing left. The distance between the top and the bottom of the hook portion 21 is equal to the inner diameter of the introduction sleeve 4. The introduction sleeve 4 is wrapped around the outside of the conductor 2 and extends to wrap around the outside of the right part of the pin 1. The introduction sleeve 4 and the pin 1 are interference fit. The connection between the pin 1 and the introduction sleeve 4 is wrapped and fastened by the fixing tube 3. The rightmost part of the hook portion 21 is arranged near the right end opening of the introduction sleeve 4. The collection electrode 6 is hung on the hook portion 21 and penetrates the right end opening of the introduction sleeve 4 and is placed outside the introduction sleeve 4. The body of the introduction sleeve 4 is provided with scale marking portions 41 at equal intervals, and the right end is specially treated to form a smooth portion 42. The introduction sleeve 4 is squeezed along the smooth portion 42 and extends into the inside of the protective cap 5, so as to form a fixed connection by interference fit. At this time, the collection electrode 6 is completely wrapped inside the protective cap 5 and forms a sealed state.
[0019] The fixing tube 3 can be formed by drying a hot-air tube, or by fixing an injection molded part with glue.
[0020] The unit of the pitch of the scale marking part 41 is 0.5 mm or 1 mm, and the marking length of the scale marking part is 30 to 50 mm.
[0021] In this solution, the collection electrode 6 is a pre-moistened cotton ball electrode, which is soft and smooth and will not cause pain or discomfort when touching the inspection site. Moreover, it can be used by removing the protective cap without soaking in sodium chloride solution, which is convenient to use.
[0022] In this solution, one end of the introduction sleeve 4 has a relatively smooth R angle after a special processing process, and will not cause pain or discomfort when it contacts the patient's external auditory canal.
[0023] In this solution, medical staff can observe the scale markings around the introduction sleeve 4 to determine the position of the electrode entering the external auditory canal, to avoid too deep introduction causing damage to the eardrum, and too shallow introduction affecting signal collection.
[0024] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.
Claims
1. A novel eardrum electrode, characterized in that: It includes a pin, a conductor, a fixing tube, an introduction sleeve, a protective cap and a collection electrode. The introduction sleeve is a soft introduction sleeve, the outer diameter of the introduction sleeve is larger than the inner diameter of the protective cap, the collection electrode is a pre-moistened cotton ball electrode, the right end of the pin is welded to the left end of the conductor, the right end of the conductor is provided with a hook portion, the distance between the top and the bottom of the hook portion is equal to the inner diameter of the introduction sleeve, the introduction sleeve is wrapped around the outside of the conductor and extends to wrap around the outside of the right part of the pin, and the introduction sleeve is interference fit with the pin The connection between the insertion pin and the introduction sleeve is wrapped and fastened by a fixing tube, the rightmost part of the hook portion is close to the right end opening of the introduction sleeve, the collection electrode is hung on the hook portion and penetrates the right end opening of the introduction sleeve and is placed outside the introduction sleeve, the body of the introduction sleeve is provided with equally spaced scale marking portions, and a smooth portion is formed at the right end, the introduction sleeve is squeezed along the smooth portion and extends into the interior of the protective cap, thereby forming an interference fit to form a fixed connection, at this time the collection electrode is completely wrapped inside the protective cap, and a sealed state is formed.
2. The novel tympanic membrane electrode according to claim 1, characterized in that: The fixed tube is formed by drying a hot-air-dried heat-supply tube.
3. The novel tympanic membrane electrode according to claim 1, characterized in that: The fixing tube is formed by fixing the injection molded part with glue.
4. The novel tympanic membrane electrode according to claim 1, characterized in that: The unit of the spacing of the scale marking parts is 0.5mm or 1mm.
5. The novel tympanic membrane electrode according to claim 1, characterized in that: The marking length of the scale marking portion is 30 to 50 mm.
6. The novel tympanic membrane electrode according to claim 1, characterized in that: The collecting electrode is elliptical.
7. The novel tympanic membrane electrode according to claim 1, characterized in that: The hook portion is composed of a hook opening to the left.