CN108836330B - Magnetic stimulation vestibule function inspection instrument - Google Patents
Magnetic stimulation vestibule function inspection instrument Download PDFInfo
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- CN108836330B CN108836330B CN201810758474.0A CN201810758474A CN108836330B CN 108836330 B CN108836330 B CN 108836330B CN 201810758474 A CN201810758474 A CN 201810758474A CN 108836330 B CN108836330 B CN 108836330B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/113—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining or recording eye movement
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
- A61B3/145—Arrangements specially adapted for eye photography by video means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1101—Detecting tremor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/40—Detecting, measuring or recording for evaluating the nervous system
- A61B5/4005—Detecting, measuring or recording for evaluating the nervous system for evaluating the sensory system
- A61B5/4023—Evaluating sense of balance
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention discloses a magnetic stimulation vestibule function inspection instrument, which comprises an electromagnetic coil and a coil driving power supply for generating current in the electromagnetic coil, wherein the coil driving power supply is provided with a direct current generating circuit, and magnetic stimulation is adopted to induce eye vibration.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a magnetic stimulation vestibular function examination instrument.
Background
The body with perfect vestibule function can induce dizziness and eye shake under the action of a magnetic field with certain strength, and the larger the magnetic field is, the stronger the effect is; eye shake disappears a few minutes away from the magnetic field; healthy people can induce eye shake, but patients with vestibular dysfunction cannot induce eye shake; the eye shake intensity and the magnetic field are related to the relative direction of the head position and the intensity of the magnetic field; the characteristic of the eye shake is generally represented as horizontal eye shake, and other patients have vestibular function impaired and left and right eye shake imbalance conditions can occur.
The theory of strong magnetic field induced eye shake is explained by lorentz force generated by ion charge motion of potassium ions entering into the ampulla crest hair cells in the magnetic field to pull the ampulla crest to induce.
The action of potassium ions into the otolith also generates lorentz forces.
The existing vestibular function evaluation also has the problems of inconvenient examination operation, difficult interpretation of experimental results, insufficient sensitivity and specificity and the like.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a magnetic stimulation vestibular function examination instrument which can safely and quickly diagnose the vestibular function of a patient.
In order to achieve the above purpose, the present invention provides the following technical solutions: a magnetically stimulated vestibular function examination apparatus includes an electromagnetic coil and a coil drive power supply for generating an electric current in the electromagnetic coil, the coil drive power supply being provided with a direct current generating circuit.
As a further improvement of the invention, the electromagnetic coil is an 8-shaped coil.
As a further improvement of the invention, a direction guiding device is also included for guiding the placement direction of the electromagnetic coil, the direction guiding device is provided with a plurality of marking positions, the marking positions comprise a first marking position, a second marking position and a third marking position, and the first marking position, the second marking position and the third marking position are respectively parallel to the cutting directions of the ridges of the ampulla of the semicircular canal average model.
As a further improvement of the invention, the direction guiding device comprises a wearing piece fixed on the head, an indicating plate and an angle measuring device, wherein the indicating plate and the angle measuring device are arranged on the wearing piece, the wearing piece is correspondingly provided with a mounting seat at the position of the two side ears, the indicating plate is rotationally connected with the mounting seat, the angle measuring device is provided with a reference plane parallel to the sagittal plane, the angle measuring device is used for measuring the space angle of the indicating plate relative to the reference plane, and the marked azimuth is marked on the angle measuring device.
As a further improvement of the invention, the angle measuring device comprises a disc-shaped fourth protractor and distance measuring devices, the reference surface is a scale surface of the fourth protractor, the mounting seat is perpendicular to the reference surface, one end of the mounting seat is fixed with the wearing piece, the other end of the mounting seat penetrates through the center of the fourth protractor, the center point of the indicating plate is connected with the center point of the mounting seat, the indicating plate rotates randomly in a three-dimensional space by taking the center point as a fixed point, the number of the distance measuring devices is two, and the two distance measuring devices are respectively arranged on two end points of the indicating plate.
As a further improvement of the invention, one end of the mounting seat far away from the wearing piece is provided with a movable groove with a spherical surface, the indication board is provided with a spherical hinge joint at the center point, and the spherical hinge joint is movably connected in the movable groove.
As a further improvement of the invention, the mounting seat comprises a fixing seat, a rotating seat, a first hinging seat and a second hinging seat, one end of the fixing seat is fixedly connected with the wearing piece, the other end of the fixing seat passes through the center point of the fourth protractor, the rotating seat is provided with a rotating shaft, the rotating shaft is rotationally connected with the fixing seat, the rotating shaft and the fourth protractor are coaxially arranged, the first hinging seat is provided with a first hinging shaft, the first hinging seat is hinged with the rotating seat through the first hinging shaft, the second hinging seat is provided with a second hinging seat, the second hinging seat is hinged with the first hinging seat through the second hinging shaft, and the first hinging shaft is perpendicular to the second hinging shaft.
As a further improvement of the present invention, the angle measuring device includes a first protractor, a second protractor and a third protractor, the first protractor is disc-shaped, the reference surface is a scale surface of the first protractor, the second protractor and the third protractor are semicircular, the mounting seat is perpendicular to the reference surface, one end of the mounting seat is fixed to the wearing piece, the other end of the mounting seat passes through the center of the first protractor, the mounting seat includes a rotating seat, a first hinge seat and a second hinge seat, the rotating seat is provided with a rotating shaft, the rotating shaft is rotationally connected with the first protractor, the rotating shaft is coaxially arranged with the first protractor, the first hinge seat is provided with a first hinge shaft, the first hinge seat is hinged with the rotating seat through the first hinge shaft, the second hinge seat is provided with a second hinge shaft, the second hinge seat is hinged with the first hinge seat through the second hinge shaft, the first hinge shaft is perpendicular to the second hinge shaft, the second hinge seat is coaxially arranged with the second hinge shaft, and the second protractor is coaxially arranged with the first hinge shaft.
As a further improvement of the invention, the wearing piece is any one of a hat, a headband and an earframe.
The beneficial effects of the invention are as follows: the principle of the magnetic stimulation is that potassium ions enter into the ampulla crest hair cells along the ampulla crest plane direction, when the magnetic field direction is vertical to the ampulla crest plane, the Lorentz force direction generated by ion movement in the magnetic field is vertical to the ampulla crest plane, the ampulla crest is pulled to induce vertigo eye shake, the magnetic emitter adopts an electromagnetic coil, the structure is simple, the use is simple and convenient, the danger is not easy to induce by a patient in diagnosis, and the magnetic stimulation type electric eye shake generator is convenient and quick.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a direction guiding device according to embodiment 2 of the present invention;
FIG. 3 is a schematic view of a direction guiding device according to embodiment 3 of the present invention;
fig. 4 is a schematic structural view of a direction guide device according to embodiment 4 of the present invention.
1. An electromagnetic coil; 2. a coil driving power supply; 3. a direction guide device; 4. a wearing piece; 5. an indication board; 6. an angle measuring device; 611. a fourth protractor; 612. a distance measuring device; 621. a first protractor; 622. a second protractor; 623. a third protractor; 7. a mounting base; 711. a movable groove; 712. a spherical hinge joint; 721. a rotating seat; 722. a first hinge base; 723. the second hinge seat; 724. a rotating shaft; 725. a first hinge shaft; 726. a second hinge shaft; 727. a fixing seat; 8. a reference surface; 9. an eye shake recorder.
Detailed Description
The invention will be further described in detail with reference to examples of embodiments shown in the drawings.
Referring to fig. 1, a magnetic stimulation vestibular function examination apparatus disclosed in this embodiment 1 includes an electromagnetic coil 1 and a coil driving power source 2 for generating current in the electromagnetic coil 1, where the coil driving power source 2 is provided with a direct current generating circuit, the magnetic induction intensity excited by the direct current generating circuit is 2-8T, and the magnetic field direction in the magnetic stimulation process is consistent, the coil shape can be in a shape of circle, square, or '8', preferably in a shape of '8', so that the focusing degree of the magnetic field is better, the HPR area can be smaller, the influence on other parts can be avoided or reduced, the application is safer, and when in use, the eye shock can be induced by stimulating the ampulla ridges of different semicircular tubes by changing the orientation of the electromagnetic coil 1, and the eye shock intensity can reflect the ampulla ridge function. If the patient does not induce the eye shake under the magnetic stimulation, the vestibular function is judged to be lost, and the vestibular function can be judged to be damaged by the weakening of the eye shake or the asymmetry of the intensity of the eye shake induced by the left and right stimulation.
The principle of the magnetic stimulation is that potassium ions enter into the ampulla crest hair cells along the ampulla crest plane direction, when the magnetic field direction is vertical to the ampulla crest plane, the Lorentz force direction generated by ion movement in the magnetic field is vertical to the ampulla crest plane, the ampulla crest is pulled to induce vertigo eye shake, the magnetic emitter adopts an electromagnetic coil, the structure is simple, the use is simple and convenient, the danger is not easy to induce by a patient in diagnosis, and the magnetic stimulation type electric eye shake generator is convenient and quick.
As an improved embodiment, the device further comprises a direction guiding device 3, the direction guiding device 3 is used for guiding the placement direction of the electromagnetic coil 1, the direction guiding device 3 is provided with a plurality of marking positions, the marking positions comprise a first marking position, a second marking position and a third marking position, the first marking position, the second marking position and the third marking position are respectively parallel to the cutting directions of the ampulla ridges of the semicircular canal average model, and simply, three fixed indicating plates 5 are arranged, the positions of the indicating plates 5 are parallel to the cutting directions of the ampulla ridges of the semicircular canal average model, and in use, the electromagnetic coil 1 and the three indicating plates 5 can be sequentially parallel to stimulate the ampulla ridges in different positions.
By setting the direction guiding device 3, the direction guiding device plays a role in indication, so that a doctor can quickly adjust the electromagnetic coil 1 to be parallel to the ampulla crest tangential plane, when the electromagnetic coil 1 is aligned with each marking azimuth, the electromagnetic coil 1 is nearly parallel to the tangential plane of each ampulla crest of a patient, the direction guiding device can be used for fine adjustment through angles near the marking azimuth, the square point with the strongest eye vibration intensity of the patient is searched for recording the eye vibration frequency, by setting the eye vibration recorder 9, the eye vibration recorder 9 is used for recording the eye movement when the ampulla crest is magnetically stimulated, the eye vibration recorder 9 can adopt an image recorder, the eye vibration frequency is counted through image analysis,
one embodiment of the eye shock recorder 9 is as follows: including the infrared camera, still including the magazine of fixed infrared camera, the inside cavity of magazine sets up and forms the darkroom, and the camera end of infrared camera is arranged in the darkroom, be equipped with the window with eye adaptation on the one side of magazine orientation face, the camera end of infrared camera aligns with the window, and the magazine passes through the fastening band and wears at the eye.
In a modified specific embodiment, the wearing piece 4 is any one of a hat, a headband and an ear rack, and the hat, the headband or the ear rack are made of harder materials so as to prevent deflection in the wearing process.
As a specific embodiment of the improvement, the electromagnetic coil 1 is provided with a cooling system, and the cooling system can adopt the following modes;
or two stimulating coils are adopted to work in turn, the heating coil is taken down, the other stimulating coil is replaced, and meanwhile, ice water or a refrigerator is adopted to forcedly cool the heating stimulating coils. The method has obvious defects: the stimulation coil generates heat very fast, needs to be disassembled and assembled repeatedly, is very troublesome, increases the risk of poor contact of high-voltage discharge, and has poor cooling effect.
Or external air cooling is adopted, namely a fan is arranged on the surface of the stimulation coil. This method also has its drawbacks: firstly, the installation of the fan causes the stimulation coil to be too large and heavy, and manual operation is difficult to achieve in clinic; secondly, as the radiating fan is arranged on one surface of the stimulation coil, effective stimulation can be formed on the other surface of the stimulation coil, and double-sided effective stimulation of the stimulation coil cannot be achieved; thirdly, the cooling effect is not very good due to the external cooling mode;
or external water cooling, the characteristics are similar to external air cooling, namely, a water cooling circulation system is arranged on one surface of the stimulating coil. Its disadvantages are the same as air cooling. In addition, the external water cooling increases the risk of high-voltage electric leakage;
preferably, an inert liquid internal circulation cooling system is adopted, an internal cooling coil is adopted by the electromagnetic coil 1, a cooling device is arranged in the electromagnetic coil 1, and a cooling medium circulates in the internal cooling coil and the cooling device to take away heat, so that the whole stimulation beat can be continuously cooled, the working stability of the stimulation beat is improved, the stimulation beat can be continuously used in actual clinical application, the high-voltage electric leakage risk of external water cooling is avoided in use, and the safety of transcranial magnetic stimulation equipment is improved.
Referring to fig. 2, the magnetic stimulation vestibular function examination apparatus disclosed in this embodiment 2 is different from embodiment 1 in that: the direction guiding device 3 comprises a wearing piece 4 fixed on the head, an indicating plate 5 and an angle measuring device 6, wherein the indicating plate 5 is arranged on the wearing piece 4, the space azimuth coordinate of the indicating plate 5 is determined through the angle measuring device 6, the mark azimuth is determined through the space azimuth coordinate, the wearing piece 4 is correspondingly provided with a mounting seat 7 at the position of the two side ears, the indicating plate 5 is rotationally connected with the mounting seat 7, the angle measuring device 6 is provided with a datum plane 8 parallel to the sagittal plane, the angle measuring device 6 is used for measuring the space angle of the indicating plate 5 relative to the datum plane 8, the mark azimuth is marked on the angle measuring device 6, the angle measuring device 6 comprises a disc-shaped fourth protractor 611 and a distance measuring device 612, the datum plane 8 is the scale surface of the fourth protractor 611, the mounting seat 7 is vertically arranged with the datum plane 8, one end of the mounting seat 7 is fixed with the wearing piece 4, the other end passes through the center of the fourth protractor 611, the center point of the indicating plate 5 is connected with the center point of the mounting seat 7, the indicating plate 5 rotates randomly in three-dimensional space by taking the center point as a fixed point, the number of the distance measuring devices 612 is two, the two distance measuring devices 612 are respectively arranged on two endpoints of the indicating plate 5, the distance measuring devices 612 can adopt a winding tape measure, the holding groove is arranged on any two endpoints of the indicating plate 5, the tape measure is fixed in the holding groove, or the distance measuring devices 612 can adopt a range finder, the holding groove is arranged on any two endpoints of the indicating plate 5, the range finder is arranged in the holding groove, the range finder preferably adopts an ultrasonic range finder, the movable groove 711 with a spherical surface is arranged on one end of the mounting seat 7 far away from the wearing piece 4, the indication board 5 is provided with a spherical hinge 712 at the center point, the spherical hinge 712 is movably connected in the movable groove 711, and three positioning indication boards 5 are adopted relatively, the indication board 5 is provided with a freely rotatable hinge structure, so that the adjustment mode is simpler when in rotation adjustment, the indication boards 5 are sequentially rotated to be fine-adjusted near the first marking position, the second marking position and the third marking position by marking the cross section direction of each ampulla ridge of the semicircular canal average model on the fourth protractor 611 and the range finder together, the fine adjustment of the space positions of the indication boards 5 after fine adjustment is convenient, during recording, the angle of the central axis of the length direction of the indication boards 5 projected on the fourth protractor 611 is taken and the space positions of the ampulla ridges of the indication boards 5 are determined by taking the straight line distance between any two end points and the fourth protractor 611, and the space positions of the ampulla ridges of the other sides are determined by recording the space positions of the ampulla ridges of the left ear side and the right ear side, and the positioning time of the ampulla ridges of the other sides is greatly shortened.
Referring to fig. 3, the magnetic stimulation vestibular function examination apparatus disclosed in this embodiment 3 is different from embodiment 2 in that: the mounting seat 7 comprises a fixed seat 727, a rotating seat 721, a first hinge seat 722 and a second hinge seat 723, one end of the fixed seat 727 is fixedly connected with the wearing piece 4, the other end of the fixed seat passes through the center point of the fourth protractor 611, the rotating seat 721 is provided with a rotating shaft 724, the rotating shaft 724 is rotationally connected with the fixed seat 727, the rotating shaft 724 and the fourth protractor 611 are coaxially arranged, the first hinge seat 722 is provided with a first hinge shaft 725, the first hinge seat 722 is hinged with the rotating seat 721 through the first hinge shaft 725, the second hinge seat 723 is provided with a second hinge shaft 726 and is hinged with the first hinge seat 722, and the first hinge shaft 725 is vertically arranged with the second hinge shaft 726.
By providing the mounting block 7 as the rotating block 721, the first hinge block 722 and the second hinge block 723, the space adjustment of the indication plate 5 is decomposed into three steps, and the adjustment process is determined to be more accurate by rotating the rotating block 721.
Referring to fig. 4, the magnetic stimulation vestibular function examination apparatus disclosed in this embodiment 4 is different from embodiment 2 in that: the direction guiding device 3 comprises a wearing piece 4 fixed on the head, an indicating plate 5 and an angle measuring device 6 which are installed on the wearing piece 4, the wearing piece 4 is correspondingly provided with a mounting seat 7 at the position of two side ears, the indicating plate 5 is rotatably connected with the mounting seat 7, the angle measuring device 6 is provided with a reference surface 8 parallel to a sagittal plane, the angle measuring device 6 is used for measuring the space angle of the indicating plate 5 relative to the reference surface 8, the marked azimuth mark is arranged on the angle measuring device 6, the angle measuring device 6 comprises a first protractor 621, a second protractor 622 and a third protractor 623, the first protractor 621 is in a disc shape, the reference surface 8 is a scale surface of the first protractor 621, the second protractor 622 and the third protractor 623 are in a semicircle shape, the mounting seat 7 is vertically arranged with the reference surface 8, one end of the mounting seat 7 is fixed with the wearing piece 4, the other end passes through the center of the first protractor 621, the mounting seat 7 comprises a rotating seat 721, a second rotating shaft 724 and a third shaft 725 are coaxially arranged with a first shaft 726, a second shaft 725 and a second shaft 725, a first shaft 725 is coaxially arranged with the first shaft 722, a second shaft 722 is coaxially arranged with the first shaft 722 and a second shaft 722, a second shaft 722 is coaxially connected with the first shaft 722, a second shaft 722 is coaxially arranged with the second shaft 725, a first shaft 722 and a second shaft 722 is coaxially arranged.
The mounting seat 7 is set to be a rotating seat 721, a first hinging seat 722 and a second hinging seat 723, the direction guiding device 3 is composed of three protractors which are respectively and axially perpendicular to the rotating seat 721, the first hinging seat 722 and the second hinging seat 723, and when the indicating plate 5 is adjusted step by step, the rotating angles are directly read through the first protractor 621, the second protractor 622 and the third protractor 623, and the direction coordinates are recorded more intuitively and conveniently.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.
Claims (7)
1. A magnetically stimulated vestibular function examination instrument, characterized in that: comprises an electromagnetic coil (1) and a coil driving power supply (2) for generating current in the electromagnetic coil (1), wherein the coil driving power supply (2) is provided with a direct current generating circuit, and further comprises a direction guiding device (3), the direction guiding device (3) is used for guiding the placement direction of the electromagnetic coil (1), the direction guiding device (3) is provided with a plurality of mark positions, the mark positions comprise a first mark position, a second mark position and a third mark position, the first mark position, the second mark position and the third mark position are respectively parallel to the direction of each ampulla crest tangent plane of a semicircular canal average model, the direction guiding device (3) comprises a wearing piece (4) fixed on the head, an indicating plate (5) and an angle measuring device (6) which are arranged on the wearing piece (4), the wearing piece (4) is correspondingly provided with a mounting seat (7) at the double-side ear side position, the indicating plate (5) is rotationally connected with the mounting seat (7), the angle measuring device (6) is provided with an angle measuring device (8) which is parallel to a sagittal plane, the angle measuring device (6) is used for recording the angle measuring device (6) on a reference plane (8), the eye shock recorder (9) is used for recording eyeball movement when the ampulla ridge is magnetically stimulated.
2. A magnetically stimulated vestibular function examination apparatus according to claim 1, wherein: the electromagnetic coil (1) is an 8-shaped coil.
3. A magnetically stimulated vestibular function examination apparatus according to claim 1 or 2, wherein: the angle measuring device (6) comprises a disc-shaped fourth protractor (611) and a distance measuring device (612), the reference surface (8) is a scale surface of the fourth protractor (611), the mounting seat (7) is perpendicular to the reference surface (8), one end of the mounting seat (7) is fixed with the wearing piece (4), the other end of the mounting seat passes through the center of the fourth protractor (611), the center point of the indicating plate (5) is connected with the center point of the mounting seat (7), the indicating plate (5) rotates randomly in three-dimensional space by taking the center point as a fixed point, the number of the distance measuring devices (612) is two, and the two distance measuring devices (612) are respectively arranged on two end points of the indicating plate (5).
4. A magnetically stimulated vestibular function examination apparatus as claimed in claim 3, wherein: one end of the mounting seat (7) far away from the wearing piece (4) is provided with a movable groove (711) with a spherical surface, the indication plate (5) is provided with a spherical hinge joint (712) at the center point, and the spherical hinge joint (712) is movably connected in the movable groove (711).
5. A magnetically stimulated vestibular function examination apparatus as claimed in claim 4, wherein: the mounting seat (7) comprises a fixed seat (727), a rotating seat (721), a first hinging seat (722) and a second hinging seat (723), one end of the fixed seat (727) is fixedly connected with a wearing piece (4), the other end of the fixed seat passes through the center point of a fourth protractor (611), the rotating seat (721) is provided with a rotating shaft (724), the rotating shaft (724) is rotationally connected with the fixed seat (727), the rotating shaft (724) and the fourth protractor (611) are coaxially arranged, the first hinging seat (722) is provided with a first hinging shaft (725), the first hinging seat (722) is hinged with the rotating seat (721) through the first hinging shaft (725), the second hinging seat (723) is provided with a second hinging shaft (726), and the second hinging seat (723) is hinged with the first hinging seat (722) through the second hinging shaft (726), and the first hinging shaft (725) and the second hinging shaft (726) are vertically arranged.
6. A magnetically stimulated vestibular function examination apparatus as claimed in claim 5, wherein: the angle measuring device (6) comprises a first protractor (621), a second protractor (622) and a third protractor (623), the first protractor (621) is disc-shaped, the reference surface (8) is a scale surface of the first protractor (621), the second protractor (622) and the third protractor (623) are semicircular, the mounting seat (7) is perpendicular to the reference surface (8), one end of the mounting seat (7) is fixed with the wearing part (4), the other end passes through the center of the first protractor (621), the mounting seat (7) comprises a rotating seat (721), a first hinging seat (722) and a second hinging seat (723), the rotating seat (721) is provided with a rotating shaft (724), the rotating shaft (724) is rotationally connected with the first protractor (621), the rotating shaft (724) is coaxially arranged with the first protractor (621), the first hinging seat (722) is provided with a first hinging shaft (725), the first hinging seat (725) is perpendicularly hinged with the first hinging seat (723) through a first hinging seat (723) and a second hinging seat (726) through a first hinging shaft (723) and a second hinging seat (726), the second protractor (622) is arranged coaxially with the first hinge shaft (725), and the third protractor (623) is arranged coaxially with the second hinge shaft (726).
7. A magnetically stimulated vestibular function examination apparatus as claimed in claim 5, wherein: the wearing piece (4) is any one of a hat, a head band and an ear frame.
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| CN201810758474.0A CN108836330B (en) | 2018-07-11 | 2018-07-11 | Magnetic stimulation vestibule function inspection instrument |
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| CN201810758474.0A CN108836330B (en) | 2018-07-11 | 2018-07-11 | Magnetic stimulation vestibule function inspection instrument |
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| CN108836330B true CN108836330B (en) | 2023-08-29 |
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| CN101801453A (en) * | 2007-09-21 | 2010-08-11 | Ric投资有限责任公司 | Vestibular stimulation system |
| CN103784112A (en) * | 2013-10-10 | 2014-05-14 | 杨松 | Eye movement sensing method, flexible contact, external sensing coil and system |
| KR20160059078A (en) * | 2014-11-17 | 2016-05-26 | 한림대학교 산학협력단 | Apparatus for head mount vestibular function test using galvanic vestibular stimulation and method thereof |
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| US7933654B2 (en) * | 2002-12-17 | 2011-04-26 | Massachusetts Eye & Ear Infirmary | Vestibular stimulator |
| US10646723B2 (en) * | 2016-08-04 | 2020-05-12 | The Johns Hopkins University | Device for magnetic stimulation of the vestibular system |
| US20180178025A1 (en) * | 2016-12-27 | 2018-06-28 | Georgia Tech Research Corporation | System and Method for Intracochlear and Vestibular Magnetic Stimulation |
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| CN101801453A (en) * | 2007-09-21 | 2010-08-11 | Ric投资有限责任公司 | Vestibular stimulation system |
| CN103784112A (en) * | 2013-10-10 | 2014-05-14 | 杨松 | Eye movement sensing method, flexible contact, external sensing coil and system |
| KR20160059078A (en) * | 2014-11-17 | 2016-05-26 | 한림대학교 산학협력단 | Apparatus for head mount vestibular function test using galvanic vestibular stimulation and method thereof |
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