Inner ear balancer demonstration teaching aid

A technology of a balancer and a teaching aid, which is applied in the field of medical teaching aids, can solve the problems of limited guidance of the reduction technique and the inability to see the movement trajectory of the patient's otolith reduction, and achieves the effects of strong clinical guidance, simple structure and clever conception.

Pending Publication Date: 2020-10-30
JIANGSU PROVINCE HOSPITAL THE FIRST AFFILIATED HOSPITAL WITH NANJING MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual clinical practice, doctors cannot see the trajectory of the patient's otolith reset, so the demonstration device has limited guidance in the teaching of reset techniques
At present, there is no teaching aid that can effectively guide doctors to learn reset techniques to meet the needs of clinical teaching

Method used

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  • Inner ear balancer demonstration teaching aid
  • Inner ear balancer demonstration teaching aid
  • Inner ear balancer demonstration teaching aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A demonstration teaching aid for an inner ear balancer, such as figure 2 and 3 As shown, including the inner ear model 1 and the eyeball model 2, the two are fixed on the bracket according to the anatomical position relationship of the human body;

[0052] The inner ear model 1 simulates the structure of the human inner ear, including the semicircular bone canal 11 and the utricle 12. The semicircular bone canal is made of transparent material and forms a closed cavity with the utricle, which is filled with liquid simulating human lymph, and placed in the utricle Simulated otolith particles made of magnets13;

[0053] The eyeball model 2 includes a simulated eyeball 21, a simulated extraocular muscle 22 and a support structure 23, the simulated eyeball 21 is fixedly connected to one end of the elastic simulated extraocular muscle 22, and the other end of the simulated extraocular muscle 22 is fixedly connected to the support structure 23 , the simulated extraocular m...

Embodiment 2

[0059] Embodiment 2 On the basis of the structure of Embodiment 1, the control mechanism 39 is changed from a spring to a limit groove, such as Figure 4-5 As shown, the limiting groove 39 is fixedly connected in the housing, and the conducting member 37 can slide freely in the limiting groove 39 along the direction of gravity. When the conducting member and the simulated otolith particles are attracted by magnetic force, the conducting member is separated from the on-off The contact of the contact element interrupts the circuit; when the magnetic attraction between the conductive element and the simulated otolith particles weakens or disappears, the conductive element returns to the first state of being in contact with the on-off contact element due to gravity traction, and the circuit is turned on;

Embodiment 3

[0061] Embodiment 3 On the structural basis of Embodiment 1, the control mechanism 39 is changed into a toggle member by a spring, such as Figure 6-9 As shown, the toggle member 39 includes a toggle switch 391, a toggle block 392, and a toggle groove 393. The housing of the electromagnetic tractor is provided with an opening 311 that can accommodate the toggle switch, and the toggle groove is fixedly connected in the housing. , the toggle switch protrudes from the opening 311, the toggle switch 391, the toggle block 392 and the conductive member 37 are fixedly connected in sequence, the toggle block 392 is engaged in the toggle groove 393, and can slide in the toggle groove, the toggle switch The shifting block can be driven in the opening to drive the conduction member to move, so that the conduction member has the first state of being in contact with the on-off contact element and conducting the circuit, and magnetically attracts the simulated otolith particles and interacts...

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PUM

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Abstract

The invention discloses an inner ear balancer demonstration teaching aid, which comprises an inner ear model and an eyeball model, and the inner ear model simulates an inner ear structure of a human body and comprises a bone semicircular canal and an elliptical sac and / or a balloon, and simulated otolith particles made of a magnetic material are placed in the elliptical sac and / or the balloon; theeyeball model comprises a simulated eyeball, a simulated extraocular muscle and a supporting structure; and the outer wall of the elliptical sac and / or the outer wall of the balloon are / is fixedly connected with an electromagnetic tractor. When the simulated otolith particles are separated from the normal position, the electromagnetic tractor tensions the simulated extraocular muscles to enable the eyeballs to vibrate, and when the simulated otolith particles are reset, the eyeballs return to normal. The demonstration teaching aid visually prompts a doctor to perform otolith reduction throughtremor of eyeballs, and has very strong clinical guidance.

Description

technical field [0001] The invention relates to the field of medical teaching aids, in particular to an inner ear balancer demonstration teaching aid. Background technique [0002] Otoliths are important organs that control the balance of the human body. Under normal physiological conditions, otoliths are attached to the balloon and utricle of the inner ear balancer bone labyrinth. When some pathogenic factors cause otoliths to detach, these shed otoliths will It will swim in the inner ear lymph fluid. When the position of the human head changes, the position of these semicircular canals will also change accordingly. The sinking otoliths will move with the flow of fluid, thereby stimulating the bony semicircular canal hair cells of the inner ear. cause severe vertigo to the body (such as figure 1 shown). [0003] Senile degenerative changes, trauma, ear diseases, such as middle ear mastoid infection such as viral labyrinthitis, chronic suppurative otitis media, perilymphat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/28
CPCG09B23/28
Inventor 史兆春顾萍沈飞飞黄琳武茜
Owner JIANGSU PROVINCE HOSPITAL THE FIRST AFFILIATED HOSPITAL WITH NANJING MEDICAL UNIV
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