Inner ear model and head model

Abstract

The utility model discloses an inner ear model and a head model, which comprise an elliptical bag model and at least one semicircular canal model arranged on the outer side of the elliptical bag model, and an otolith model throwing device is arranged at the upper end of the elliptical bag model. The otolith model putting device comprises a putting base communicated with the semicircular canal model and further comprises a putting tail end movably connected with the putting base, and a putting opening is formed in the surface of the putting tail end. According to the utility model, the efficiency and accuracy of otolith model putting in the treatment and medical teaching process are improved, and the efficiency and accuracy of patient treatment and medical teaching are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical models, in particular to an inner ear model and a head model. Background Art

[0002] At present, it is generally believed that BPPV is caused by otoliths falling off from the macula and into the semicircular canals. After the head is subjected to the plane movement of the semicircular canals, the otoliths move under the action of gravity, driving the flow of endolymph, causing the top of the ampulla crest to shift, inducing an increase in the vestibular afferent electrical activity of the affected semicircular canals, thereby stimulating positional vertigo and nystagmus.

[0003] The otolith model is placed into the semicircular canal model to simulate the movement of the otoliths in the semicircular canal. During the treatment and teaching demonstration, the path and speed of the otolith movement can be observed intuitively to ensure the accuracy of the treatment and teaching demonstration.

[0004] During the demonstration, the otolith model is pre-placed in the utricle model. By flipping the inner ear model, the otolith model is controlled to enter the designated semicircular canal model, thereby achieving movement of the otolith model in the predetermined semicircular canal model to meet the needs of treatment and teaching.

[0005] However, in the actual treatment and demonstration process, the process of controlling the otolith model to enter the semicircular canal model by adjusting the inner ear model is relatively complicated, which consumes time for treatment and teaching; more importantly, the number of semicircular canals affected by the otolith model and the number of otolith models in the semicircular canal model are not the same, and the traditional model cannot achieve the expected placement control by adjusting the posture of the inner ear model; some inner ear models can achieve accurate placement of the otolith model by setting a detachable connection between the semicircular canal model and the utricle model; however, each placement requires disassembly control, the operation process is complicated, and the inner ear model is filled with lymph simulation liquid, the disassembly process is very cumbersome, causing many inconveniences in the otolith model teaching demonstration. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes an inner ear model and a head model, which improves the efficiency and accuracy of otolith model placement in the process of patient treatment simulation and medical student teaching.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An inner ear model comprises an utricle model and a semicircular canal model installed outside the utricle model, wherein at least one semicircular canal model is provided, and an otolith model delivery device is installed on the upper end of the utricle model, wherein the otolith model delivery device comprises a delivery base connected to the semicircular canal model, and also comprises a delivery end movably connected to the delivery base, wherein a delivery opening is provided on the surface of the delivery end, and the delivery of the otolith model is realized by adjusting the delivery opening relative to the semicircular canal model.

[0009] Through the above design, the placement position and number of otolith models can be quickly adjusted, which improves the efficiency and accuracy of otolith model placement during treatment and teaching, and ensures the efficiency and accuracy of patient treatment and teaching.

[0010] Preferably, the first end of the utricle model is provided with a delivery end, the second end is provided with a discharge end, the otolith model delivery device is installed on one side of the delivery end, and the discharge end is provided with a sealing device; the sealing device and the discharge end are in a sealed state, which can prevent otoliths and liquid from leaking.

[0011] Preferably, an elastic reset component is installed between the delivery end and the delivery base; the delivery end can be placed in an initial sealing state through the elastic reset component, thereby ensuring the stability of the seal on one side of the otolith model delivery device.

[0012] Preferably, a locking assembly is installed between the delivery end and the delivery base; the position of the delivery end can be locked by the locking assembly, so that the delivery end and the delivery base remain in a relatively fixed state, ensuring the stability of the delivery end in the sealed position and further avoiding leakage of the liquid.

[0013] Preferably, the side of the delivery end close to the delivery base is a sealing end, the outer wall of the sealing end is a truncated cone, and the inner wall of the top of the delivery base is adapted to the truncated cone of the sealing end; by squeezing the delivery end and the delivery base, the delivery end and the delivery base can be brought close to each other, thereby enhancing the sealing of the connection, and during the rotation process, the delivery end can be lifted to a certain height, thereby reducing the rotational friction between the delivery end and the delivery base, thereby avoiding friction failure between the delivery end and the delivery base, and ensuring the strength of the structures.

[0014] Preferably, the delivery base includes a first annular base, the outer wall of the first annular base is connected to at least one first guide pipe, and the delivery end includes a first annular delivery pipe rotatably connected to the first annular base; the above structure occupies a small space as a whole and has low structural processing difficulty; and it is adapted to the actual position of the semicircular canal model, and the otolith delivery position can be switched by rotating the delivery end, which is simple and convenient.

[0015] Preferably, the delivery base comprises a second annular base, the outer wall of the second annular base is connected to at least one second guide pipe, and the delivery end comprises a second annular delivery pipe slidably connected to the second annular base.

[0016] A head model comprises the inner ear model mentioned above and also comprises a head shell made of transparent material, wherein the inner ear model is detachably mounted at a predetermined position in the head shell.

[0017] Preferably, one side of the otolith model delivery device is detachably connected to the inner wall of the head shell.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The otolith model delivery device can quickly adjust the delivery position and quantity of the otolith model, thereby improving the efficiency and accuracy of otolith model delivery during treatment and teaching, and ensuring the efficiency and accuracy of patient treatment simulation and medical student teaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the three-dimensional structure of this inner ear model.

[0021] Figure 2 It is a schematic diagram of Example 1 of the inner ear model otolith model delivery device.

[0022] Figure 3 Inner ear model Figure 2 Schematic diagram of the explosion structure.

[0023] Figure 4 This is a schematic diagram of Example 2 of the inner ear model otolith model delivery device.

[0024] Figure 5 Inner ear model Figure 4 Schematic diagram of the explosion structure.

[0025] Figure 6 A schematic diagram of the three-dimensional structure of the head model.

[0026] In the figure: 100, head shell; 200, sealing device; 300, utricle model; 310, delivery end; 320, discharge end; 400, semicircular canal model; 500, otolith model delivery device; 510, delivery end; 511, first annular delivery pipe; 512, delivery port one; 513, second annular delivery pipe; 514, delivery port two; 520, delivery base; 521, first annular base; 522, first guide pipe; 523, second annular base; 524, second guide pipe. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] At present, it is generally believed that BPPV is caused by otoliths falling off from the macula and into the semicircular canals. After the head is subjected to the plane movement of the semicircular canals, the otoliths move under the action of gravity, driving the flow of endolymph, causing the top of the ampulla crest to shift, inducing an increase in the vestibular afferent electrical activity of the affected semicircular canals, thereby stimulating positional vertigo and nystagmus.

[0030] An inner ear model; comprising an utricle model 300 and a semicircular canal model 400 installed outside the utricle model 300, at least one semicircular canal model 400 is provided, an otolith model is placed into the semicircular canal model 400 to simulate the movement of otoliths in the semicircular canals, and the path and speed of otolith movement can be directly observed during treatment and teaching demonstration, thereby ensuring the accuracy of treatment and teaching demonstration.

[0031] The otolith model is pre-placed in the utricle model 300. During the demonstration, the otolith model is controlled to enter the designated semicircular canal model 400 by flipping the inner ear model, thereby realizing the movement of the otolith model in the predetermined semicircular canal model 400 to meet the needs of treatment and teaching.

[0032] However, in the actual treatment and demonstration process, the process of controlling the otolith model to enter the semicircular canal model 400 by adjusting the inner ear model is relatively complicated, which consumes time for treatment and teaching; more importantly, the number of otolith models and semicircular canal models 400 and the number of otolith models in the semicircular canal model 400 are not the same, and the traditional model cannot achieve the expected delivery control by adjusting the posture of the inner ear model; some inner ear models can achieve accurate delivery of the otolith model by setting a detachable connection between the semicircular canal model 400 and the utricle model 300, but each delivery requires disassembly control, the operation process is complicated, and the inner ear model is filled with lymph simulation liquid, the disassembly process is very inconvenient, causing many inconveniences in the delivery of the otolith model.

[0033] See attached Figure 1 -Attached Figure 6 An otolith model delivery device 500 is installed at the upper end of the utricle model 300. The otolith model delivery device 500 includes a delivery base 520 connected to the semicircular canal model 400, and also includes a delivery end 510 movably connected to the delivery base 520. A delivery opening is opened on the surface of the delivery end 510. The delivery opening is adjusted relative to the semicircular canal model 400 to achieve the delivery of the otolith model.

[0034] During the operation, after the delivery opening on the surface of the delivery terminal 510 is rotated to be aligned with the corresponding semicircular canal model 400, the otolith model is delivered into the delivery terminal 510, so that the otolith model can be delivered conveniently, and the delivery position and delivery quantity can be quickly adjusted; after the otolith delivery is completed, the delivery terminal 510 is rotated to a sealed position, which can block the otolith model and the liquid inside, thereby ensuring normal and efficient treatment and teaching.

[0035] In summary, through the above design, the placement position and number of otolith models can be quickly adjusted, which improves the efficiency and accuracy of otolith model placement during treatment and teaching, and ensures the efficiency and accuracy of patient treatment and teaching.

[0036] Furthermore, a delivery end 310 is provided at the first end of the utricle model 300, and a discharge end 320 is provided at the second end. An otolith model delivery device 500 is installed on one side of the delivery end 310, and a sealing device 200 is provided at the discharge end 320. The sealing device 200 is detachably connected to one end of the discharge end 320. In the installed state, the sealing device 200 and the discharge end 320 are in a sealed state, which can prevent otoliths and liquid from leaking out. When the sealing device 200 is in an open state, the otoliths and liquid at the bottom can be quickly discharged, thereby realizing a rapid resetting of the otolith model and facilitating the next demonstration of the model.

[0037] It should be noted here that when there is no need to discharge the liquid in the inner ear model, the entire model can be placed in the liquid, and after opening the sealing device 200, the otolith model is automatically discharged under the action of gravity.

[0038] An elastic reset component is installed between the delivery end 510 and the delivery base 520. The delivery end 510 can be placed in an initial sealing state through the elastic reset component to ensure the stability of the seal on one side of the otolith model delivery device 500. According to the movable connection method of the delivery end 510, the elastic reset component here can be selected as a torsion spring or a tension spring.

[0039] It should be noted here that the delivery end 510 has a sealing gasket at the position of the rotating seal, which can wrap the delivery opening to achieve sealing at the connection.

[0040] Furthermore, a locking assembly is installed between the delivery end 510 and the delivery base 520, through which the position of the delivery end 510 can be locked, so that the delivery end 510 and the delivery base 520 remain in a relatively fixed state, thereby ensuring the stability of the delivery end 510 in the sealed position and further avoiding leakage of the liquid.

[0041] The locking assembly mentioned above can be selected as a locking bolt, a locking buckle or other structures to increase the resistance to the rotation of the delivery end 510.

[0042] The side of the delivery end 510 close to the delivery base 520 is a sealing end, the outer wall of the sealing end is a truncated cone, and the inner wall of the top of the delivery base 520 is adapted to the truncated cone of the sealing end. By squeezing the delivery end 510 and the delivery base 520, the delivery end 510 and the delivery base 520 can be brought close to each other to enhance the sealing of the connection. In addition, during the rotation process, the delivery end 510 can be lifted to a certain height to reduce the rotational friction between the delivery end 510 and the delivery base 520, thereby avoiding friction failure between the delivery end 510 and the delivery base 520 and ensuring the strength of the structures.

[0043] It should be noted here that the above structure can also be selected as other types of rotating body structures to ensure that the delivery end 510 and the delivery base 520 can rotate freely and can be inserted for sealing.

[0044] As Example 1 of the otolith model delivery device 500, the delivery base 520 preferably includes a first annular base 521, the outer wall of the first annular base 521 is connected to at least one first guide pipe 522, the delivery end 510 includes a first annular delivery pipe 511 rotatably connected to the first annular base 521, and a delivery port 512 is opened on the side wall of the first annular delivery pipe 511, the delivery port 512 is rotated to a position opposite to the first guide pipe 522, and the otoliths can automatically roll into the corresponding first guide pipe 522 under the action of gravity, and the number of otoliths delivered can be controlled.

[0045] It should be noted here that when three first guide pipes 522 are selected, the three first guide pipes 522 are circumferentially arranged on the side wall of the first annular base 521, and their actual positions are determined according to the position of the semicircular canal model 400 and the volume of the inner ear model.

[0046] The above structure occupies a small space as a whole and has low difficulty in structural processing; and it is compatible with the actual position of the semicircular canal model 400, and the otolith placement position can be switched by rotating the placement end 510, which is simple and convenient.

[0047] As Example 2 of the otolith model delivery device 500, the delivery base 520 preferably includes a second annular base 523, the outer wall of the second annular base 523 is connected to at least one second guide pipe 524, the end of the second guide pipe 524 is connected to the corresponding semicircular canal model 400, and the delivery end 510 includes a second annular delivery pipe 513 slidably connected to the second annular base 523. Similarly, a delivery port 2 514 is opened on the side wall of the second annular delivery pipe 513. When multiple second guide pipes 524 are selected here, the second guide pipes 524 are arranged along the length direction of the second annular base 523, and the sliding delivery port 2 514 is relative to different second guide pipes 524 to ensure accurate delivery of otoliths.

[0048] Finally, it should be noted that the semicircular canal model 400 here is made of transparent material, and the otolith model is made of non-transparent material. The liquid inside the inner ear model can contrast with the color of the otolith model to highlight the trajectory of the movement of the otoliths; the semicircular canal model 400 is preferably set to 3, which is close to the actual inner ear position and length to ensure the accuracy of the otolith model simulation. Similarly, the semicircular canal model 400 here can be disassembled and connected to facilitate the replacement of different semicircular canal models 400.

[0049] Refer to the attached Figure 6A head model includes the above-mentioned inner ear model and a head shell 100 made of a transparent material. The inner ear model can be detachably installed at a predetermined position in the head shell 100. The installation position of the utricle model 300 is simulated according to the actual position of the human body, and the movement trajectory of the otoliths can be truly simulated. During the treatment process, the head model can be kept relatively consistent with the patient's head, which is convenient for the patient and the doctor to observe the movement trajectory of the otoliths in the patient's head according to the otolith model in the head model, so as to ensure that the otoliths fall into the predetermined position and achieve efficient and accurate treatment of otolith disease.

[0050] One side of the otolith model delivery device 500 is detachably connected to the inner wall of the head shell 100, and a plug-in structure can be selected at the connection of the otolith model delivery device 500, which can further ensure the sealing effect of the otolith model delivery device 500, avoid liquid leakage caused by the head model falling, and avoid accidents.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An inner ear model, comprising a utricle model (300) and a semicircular canal model (400) mounted outside the utricle model (300), wherein at least one semicircular canal model (400) is provided, characterized in that: An otolith model delivery device (500) is installed at the upper end of the utricle model (300), and the otolith model delivery device (500) comprises a delivery base (520) connected to the semicircular canal model (400), and also comprises a delivery end (510) movably connected to the delivery base (520), and a delivery opening is formed on the surface of the delivery end (510), and the otolith model is delivered by adjusting the delivery opening relative to the semicircular canal model (400).

2. An inner ear model according to claim 1, characterized in that: The utricle model (300) is provided with a delivery end (310) at a first end and a discharge end (320) at a second end; the otolith model delivery device (500) is installed on one side of the delivery end (310); and the discharge end (320) is provided with a sealing device (200).

3. An inner ear model according to claim 1, characterized in that: An elastic reset component is installed between the delivery end (510) and the delivery base (520).

4. An inner ear model according to claim 1, characterized in that: A locking assembly is installed between the delivery end (510) and the delivery base (520).

5. The inner ear model according to claim 1, characterized in that: The side of the delivery end (510) close to the delivery base (520) is a sealing end, the outer wall of the sealing end is in a truncated cone shape, and the inner wall of the top of the delivery base (520) is adapted to the truncated cone shape of the sealing end.

6. An inner ear model according to any one of claims 1 to 5, characterized in that: The delivery base (520) comprises a first annular base (521), the outer wall of the first annular base (521) is connected to at least one first guide pipe (522), and the delivery end (510) comprises a first annular delivery pipe (511) rotatably connected to the first annular base (521).

7. An inner ear model according to any one of claims 1 to 5, characterized in that: The delivery base (520) comprises a second annular base (523), the outer wall of the second annular base (523) is connected to at least one second guide pipe (524), and the delivery end (510) comprises a second annular delivery pipe (513) slidably connected to the second annular base (523).

8. A head model, characterized in that: The invention comprises the inner ear model according to any one of claims 1 to 7, and further comprises a head shell (100) made of a transparent material, wherein the inner ear model is detachably mounted at a predetermined position in the head shell (100).

9. A head model according to claim 8, characterized in that: One side of the otolith model delivery device (500) is detachably connected to the inner wall of the head shell (100).

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