Desktop photostimulator and electrophysiological eye diagnostic equipment

Abstract

The utility model provides a desktop flash stimulator and an electrophysiological eye diagnosis device. The desktop flash stimulator includes a box, a jaw rest, a light source and an adjustment mechanism. The box is provided with a reflective cavity and an opening that are interconnected. The inner wall surface of the reflective cavity includes a reflective surface. The jaw rest is arranged at the bottom edge of the opening. The light source is located in the reflective cavity. The reflective surface can reflect the light emitted by the light source and emit the light from the opening. The adjustment mechanism is used to adjust the height of the jaw rest. The jaw rest of the desktop flash stimulator is adjustable, and the stimulator can be suitable for different patients. The stimulator has high versatility.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a desktop flash stimulator and eye electrophysiological diagnostic equipment. Background Art

[0002] Electrophysiological eye diagnosis is a diagnostic method that diagnoses whether the human visual system is abnormal by analyzing the bioelectric changes of the visual system in response to light stimulation. Electrophysiological eye diagnosis equipment usually includes a flash stimulator and a graphic stimulator. Among them, the flash stimulator can emit light to stimulate the human visual system. At present, the industry generally hopes that the flash stimulator has a high degree of versatility and the equipment can be suitable for different patients. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a desktop flash stimulator, the jaw support of which is adjustable, the stimulator can be suitable for different patients, and the stimulator has high versatility.

[0004] The utility model also provides an eye electrophysiological diagnosis device comprising the above-mentioned desktop flash stimulator.

[0005] The desktop flash stimulator according to the first aspect of the utility model comprises: a box body, the box body is provided with a reflective cavity and an opening which are interconnected, the inner wall surface of the reflective cavity comprises a reflective surface; a jaw rest, the jaw rest is arranged at the bottom edge of the opening; a light source, the light source is located in the reflective cavity, the reflective surface can reflect the light emitted by the light source and make the light emitted from the opening; an adjustment mechanism, the box body and the jaw rest are both connected to the adjustment mechanism, and the adjustment mechanism is used to adjust the height of the jaw rest.

[0006] The desktop flash stimulator according to the embodiment of the first aspect of the utility model has at least the following beneficial effects: although different patients have different body shapes, since the height of the chin rest is adjustable, the patient or doctor can adjust the chin rest to a suitable position so that the patient's head and eyes are at a suitable height, thereby enabling different patients to use the desktop flash stimulator well.

[0007] According to some embodiments of the utility model, the adjustment mechanism includes: a screw, the jaw support is fixedly connected to the top end of the screw; a constraint block, the constraint block is fixedly connected to the bottom end of the screw, the constraint block abuts against the box to prevent the constraint block and the screw from rotating relative to the box; an adjusting piece, the adjusting piece is sleeved on the outer periphery of the screw, the adjusting piece is threadably connected to the screw, and the adjusting piece can rotate relative to the box to lift and lower the screw.

[0008] According to some embodiments of the utility model, the outer surface of the box body includes a front end face, the opening is arranged on the front end face, the front end face is also provided with a first avoidance hole, the adjustment member is passed through the first avoidance hole, and a part of the adjustment member protrudes relative to the front end face.

[0009] According to some embodiments of the present utility model, the adjustment mechanism further includes a bearing block, the adjustment member is rotatably connected to the bearing block, and the bearing block is fixedly connected to the box body to prevent the bearing block from rising and falling relative to the box body.

[0010] According to some embodiments of the utility model, the box body also includes a baffle, the top end of the baffle is connected to the top edge of the opening, the bottom end of the baffle extends into the reflective cavity, and the bottom end of the baffle is spaced apart above the chin rest.

[0011] According to some embodiments of the present utility model, the baffle includes a shielding surface, the shielding surface faces outside the reflective cavity, and the shielding surface is a concave curved surface.

[0012] According to some embodiments of the present invention, the reflective surface is a concave spherical surface.

[0013] According to some embodiments of the utility model, the desktop flash stimulator also includes an indicator light, the reflective surface is provided with a second avoidance hole, a part of the indicator light is arranged in the second avoidance hole, the second avoidance hole is arranged opposite to the opening, and the position of the second avoidance hole is higher than the position of the jaw rest.

[0014] According to some embodiments of the utility model, the desktop flash stimulator also includes a camera, the reflective surface is provided with a third avoidance hole, the camera and the third avoidance hole are arranged opposite to each other, and the third avoidance hole and the opening are arranged opposite to each other.

[0015] The ocular electrophysiological diagnostic device according to the second embodiment of the utility model includes the desktop flash stimulator described in the first embodiment.

[0016] The beneficial effects of the ocular electrophysiological diagnostic equipment according to the second embodiment of the utility model are the same as those of the desktop flash stimulator according to the first embodiment, and are not described in detail here.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 A schematic diagram of a desktop flash stimulator according to an embodiment of the utility model;

[0020] Figure 2 for Figure 1 A cross-sectional view of a desktop flash stimulator;

[0021] Figure 3 for Figure 2 A magnified image of area A;

[0022] Figure 4 for Figure 2 Enlarged view of area B;

[0023] Figure 5 for Figure 2 Enlarged view of the middle C area;

[0024] Figure 6 A schematic diagram of an electrophysiological eye diagnosis device according to an embodiment of the present invention;

[0025] Reference numerals:

[0026] 100-equipment, 101-trolley, 102-desktop graphic stimulator, 103-chin support, 104-desktop flash stimulator, 105-main display, 107-printer, 110-handheld graphic stimulator, 111-roller, 113-table, 114-handheld flash stimulator, 115-box;

[0027] 201-box, 202-baffle, 203-reflective cavity, 204-opening, 205-support surface, 206-jaw rest, 207-adjusting member, 208-light source, 209-reflective surface, 210-shielding surface, 211-adjusting mechanism, 212-camera, 213-screw, 214-upper limit plate, 215-bearing block, 216-lower limit plate, 217-first avoidance hole, 218-constraint block, 219-front end surface, 220-indicator light, 221-second avoidance hole, 222-third avoidance hole. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] Figure 1 and Figure 2 The tabletop stroboscopic stimulator 104 of one embodiment of the utility model is shown, and the tabletop stroboscopic stimulator 104 includes a housing 201, a jaw rest 206, a light source 208, and an adjustment mechanism 211. The housing 201 is provided with a reflective cavity 203 and an opening 204 that are interconnected, and the inner wall surface of the reflective cavity 203 includes a reflective surface 209. Figure 1 As shown, the jaw support 206 is arranged at the bottom edge of the opening 204, and the jaw support 206 is used to support the patient's lower jaw. More specifically, the jaw support 206 is provided with a support surface 205, and the support surface 205 is used to contact the patient's lower jaw. In order to adapt to the shape of the lower jaw, the support surface 205 is a concave arc surface. Figure 2 As shown, the light source 208 is located in the reflective cavity 203, and the reflective surface 209 can reflect the light emitted by the light source 208 and make the light emitted from the opening 204. The light source 208 can be set as an LED light board, and the light source 208 can be located in the front half of the reflective cavity 203. The box body 201 and the jaw rest 206 are both connected to the adjustment mechanism 211, and the adjustment mechanism 211 is used to adjust the height of the jaw rest 206. In the present utility model, the height of the bottom end of the support surface 205 of the jaw rest 206 can be regarded as the height of the jaw rest 206.

[0033] The process of using the desktop flash stimulator 104 by the patient is roughly as follows: the patient sits in front of the desktop flash stimulator 104, the patient's head is located at the opening 204, and the patient's lower jaw is placed on the jaw rest 206; when the light source 208 is turned on, the light emitted by the light source 208 is reflected by the reflective surface 209 and then emitted to the patient's eyes. After the patient's eyes are stimulated by the light, the signal output by the electrode attached to the patient's head will change, and the ocular electrophysiological diagnostic equipment collects the signal of the electrode, and the collected signal can be used as one of the doctor's diagnosis bases.

[0034] When using the desktop flash stimulator 104 for testing, the patient's head and eyes need to be at a suitable height, the patient's line of sight cannot be blocked, the patient cannot look directly at the light source 208 (otherwise the patient's visual system will be overly stimulated), and the patient is preferably in a relatively loose and comfortable posture. Although different patients have different body shapes, since the height of the chin rest 206 is adjustable, the patient or doctor can adjust the chin rest 206 to a suitable position, so that the patient's head and eyes are at a suitable height, so that different patients can use the desktop flash stimulator 104 well.

[0035] like Figure 3As shown, in some embodiments, the adjustment mechanism 211 includes a screw 213, a constraint block 218 and an adjustment member 207. The jaw support 206 is fixedly connected to the top of the screw 213, and the jaw support 206 and the screw 213 can be connected by screws. The constraint block 218 is fixedly connected to the bottom of the screw 213, and the constraint block 218 and the screw 213 can also be connected by screws. The constraint block 218 abuts against the box 201, thereby preventing the constraint block 218 and the screw 213 from rotating relative to the box 201. For example, the front end surface of the constraint block 218 is a plane, and the plane fits the box 201, so that the constraint block 218 cannot rotate relative to the box 201, and the screw 213 fixed to the constraint block 218 cannot rotate relative to the box 201. The center of the adjustment member 207 is provided with a threaded hole, the adjustment member 207 is sleeved on the outer periphery of the screw 213, and the adjustment member 207 is threadedly connected to the screw 213. The adjusting member 207 is equivalent to a nut and also to a knob. The adjusting member 207 can rotate relative to the housing 201, so that the screw 213 can be raised and lowered, thereby adjusting the height of the jaw rest 206. Since the constraint block 218 and the screw 213 do not rotate relative to the housing 201, the constraint block 218 and the screw 213 can efficiently move up and down relative to the housing 201 when the adjusting member 207 rotates. This adjustment mechanism 211 drives the jaw rest 206 to rise and fall through the threaded fit between the adjusting member 207 and the screw 213, and the adjustment mechanism 211 can achieve stepless adjustment of the height of the jaw rest 206. Moreover, based on the self-locking function of the threaded fit, the jaw rest 206 can be maintained at the current height position as long as the adjusting member 207 is not rotated. Therefore, there is no need to additionally set a fixing mechanism for fixing the height position of the jaw rest 206 in the desktop flash stimulator 104, and the structural complexity and cost of the desktop flash stimulator 104 are relatively low. It should be noted that the screw 213 and the adjusting member 207 of this embodiment are arranged vertically, but in other embodiments, the adjusting member 207 and the screw 213 may also be inclined relative to the vertical direction, as long as the movement of the screw 213 has a movement component in the vertical direction.

[0036] The adjusting member 207 can be manually driven by the user (doctor or diagnostician), and the user can adjust the height of the jaw rest 206 by rotating the adjusting member 207. In other embodiments, the adjusting member 207 can also be driven by a motor in the desktop flash stimulator 104. When the adjusting member 207 is manually driven, the adjusting member 207 is exposed outside the box 201 so that the user can contact the adjusting member 207. More specifically, as Figure 3As shown, the outer surface of the box body 201 includes a front face 219, the opening 204 is disposed on the front face 219, the front face 219 is further provided with a first avoidance hole 217, the adjustment member 207 is passed through the first avoidance hole 217, and a portion of the adjustment member 207 protrudes relative to the front face 219. Since the opening 204 is disposed on the front face 219, when the patient uses the desktop flash stimulator 104, the patient's body is located near the front face 219, and a portion of the adjustment member 207 is exposed at the front face 219, so that the patient can contact the adjustment member 207 conveniently.

[0037] like Figure 3 As shown, the adjustment mechanism 211 also includes a bearing block 215, the adjustment member 207 is rotatably connected to the bearing block 215, and the bearing block 215 is fixedly connected to the box body 201 to prevent the bearing block 215 from rising and falling relative to the box body 201. For example, the box body 201 includes an upper limit plate 214 and a lower limit plate 216 that are spaced apart from each other, the upper limit plate 214 is located above the lower limit plate 216, the bearing block 215 is arranged between the upper limit plate 214 and the lower limit plate 216, the bearing block 215 can be fixedly connected to the upper limit plate 214 and the lower limit plate 216 by screws (the screws are not shown), a part of the adjustment member 207 is accommodated inside the bearing block 215, and the adjustment member 207 is rotatable. Since the lifting and lowering of the bearing block 215 is blocked, the adjustment member 207 is not easy to move up and down, which is convenient for the user to rotate the adjustment member 207. Of course, the box body 201 does not necessarily need to be provided with the upper limit plate 214 and the lower limit plate 216 , as long as a part of the box body 201 can be fixedly connected to the bearing block 215 .

[0038] In some embodiments, in order to make the light entering the patient's eyes more uniform and softer, the reflective surface 209 is a concave spherical surface (such as Figure 2 As shown in FIG. 1 ). Accordingly, the reflective cavity 203 is spherical. In addition, in order to make the light softer, the reflective surface 209 can be set as a diffuse reflection surface (for example, the reflective surface 209 can be made of plastic). In order to match the shape of the reflective cavity 203, the opening 204 can be circular (as shown in FIG. 1 ). Figure 1 shown).

[0039] like Figure 2As shown, the box 201 also includes a baffle 202, the top of which is connected to the top edge of the opening 204, the bottom of which extends into the reflective cavity 203, and the bottom of which is arranged above the chin rest 206 at intervals. When the patient's head is located at the opening 204, the baffle 202 is located near the patient's forehead and above the eyes. The baffle 202 is used to separate the patient's eyes from the light source 208 to prevent the light of the light source 208 from directly irradiating the patient's eyes, thereby preventing the patient's eyes from being stimulated by excessive light. The baffle 202 includes a shielding surface 210, which faces the outside of the reflective cavity 203 and is a concave curved surface. The shielding surface 210, which is set as a curved surface, is close to the shape of the patient's forehead, and the shielding surface 210 is set as a curved surface to facilitate the patient's head to extend to the opening 204.

[0040] like Figure 4 As shown, the desktop flash stimulator 104 also includes an indicator light 220, and the reflective surface 209 is provided with a second avoidance hole 221. A portion of the indicator light 220 is disposed in the second avoidance hole 221, and the second avoidance hole 221 is disposed opposite to the opening 204, and the position of the second avoidance hole 221 is higher than the position of the jaw rest 206. When the desktop flash stimulator 104 is used to test a patient, the patient needs to look in a specific direction to ensure that the patient's eyes can receive enough light and receive appropriate stimulation. For example, since the light source 208 is located at the top of the reflective cavity 203, if the patient's line of sight is facing downward, the visual stimulation received by the patient may be insufficient. After the indicator light 220 is lit, the doctor can guide the patient to focus the patient's line of sight on the indicator light 220, thereby ensuring that the patient's line of sight or viewing angle meets the requirements of the test.

[0041] In order to facilitate the patient to identify whether the indicator light 220 is on, the color of the light emitted by the indicator light 220 and the color of the reflective surface 209 may be the same, and the color of the light emitted by the indicator light 220 and the color of the light emitted by the light source 208 may be different. For example, in some embodiments, the color of the light emitted by the light source 208 is white, the color of the reflective surface 209 is white, and the color of the light emitted by the indicator light 220 is red.

[0042] In some embodiments, multiple indicator lights 220 may be provided. For example, when the desktop flash stimulator 104 is provided with three indicator lights 220, the three indicator lights 220 may be distributed on a horizontal plane. For example, a vertical reference plane and a horizontal reference plane are defined, and the two reference planes satisfy: the axis of the circular opening 204 is the intersection of the vertical reference plane and the horizontal reference plane. The middle indicator light 220 is located on the axis of the opening 204, the indicator light 220 on the left is passed through by the horizontal reference plane and is located on the left side of the vertical reference plane, and the indicator light 220 on the right is passed through by the horizontal reference plane and is located on the right side of the vertical reference plane. When the test is performed, only one indicator light 220 is lit. When the user looks at different indicator lights 220, the user's line of sight is different, and the light emitted by the light source 208 may also stimulate the user differently. Providing multiple indicator lights 220 is conducive to more comprehensive testing of patients.

[0043] like Figure 5 As shown, the desktop flash stimulator 104 also includes a camera 212, and the reflective surface 209 is provided with a third avoidance hole 222. The camera 212 is arranged opposite to the third avoidance hole 222, and the third avoidance hole 222 is arranged opposite to the opening 204. The camera 212 can capture an image of the patient's eyeball, and this image can be used as one of the doctor's diagnosis bases. In this embodiment, the camera 212 is located at the lower side of the indicator light 220; in other embodiments, the camera 212 can also be arranged at the lower side of the indicator light 220, as long as the camera 212 can capture an image of the patient's eyeball.

[0044] Figure 6An electrophysiological eye diagnosis device 100 in one embodiment of the utility model is shown, and the electrophysiological eye diagnosis device 100 includes the above-mentioned desktop flash stimulator 104. The electrophysiological eye diagnosis device 100 also includes a trolley 101, a desktop graphic stimulator 102, a handheld flash stimulator 114, a handheld graphic stimulator 110, a chin support 103, a main display 105 and a printer 107. The trolley 101 includes a table 113, a box body 115 and rollers 111. The box body 115 is installed on the bottom surface of the table 113, and the power supply for powering various stimulators, the host and cables of the device 100 are contained in the box body 115. The desktop graphic stimulator 102, the desktop flash stimulator 104 and the main display 105 are all fixed on the top surface of the table 113. Both the handheld flash stimulator 114 and the handheld graphic stimulator 110 can be removed from the trolley 101. Both the handheld flash stimulator 114 and the desktop flash stimulator 104 can emit light, and both stimulate the patient's eyes through light. Both the handheld graphic stimulator 110 and the desktop graphic stimulator 102 have a display screen that can display graphics, and the graphic stimulator stimulates the patient's eyes through specific graphics (such as a checkerboard pattern). The jaw support bracket 103 is arranged in front of the desktop graphic stimulator 102, and the jaw support bracket 103 is used to support the user's jaw when the user observes the graphics of the desktop graphic stimulator 102. The doctor can view the patient's data and reports through the main display 105, and the printer 107 can print the patient's report. The electrophysiological eye diagnostic device 100 is provided with a variety of stimulators, and the device 100 can perform a large number of test items, which is conducive to comprehensive testing and diagnosis of patients.

[0045] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does 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.

Claims

1. Desktop flash stimulator, characterized in that, include: A box body, wherein the box body is provided with a reflective cavity and an opening which are interconnected, and an inner wall surface of the reflective cavity includes a reflective surface; a chin rest, the chin rest being arranged at a bottom edge of the opening; A light source, the light source is located in the reflective cavity, the reflective surface is capable of reflecting the light emitted by the light source and allowing the light to be emitted from the opening; An adjusting mechanism, the box body and the chin rest are both connected to the adjusting mechanism, and the adjusting mechanism is used to adjust the height of the chin rest.

2. The desktop photostimulator according to claim 1, characterized in that: The regulating mechanism comprises: A screw rod, the jaw support being fixedly connected to the top end of the screw rod; A restraining block, wherein the restraining block is fixedly connected to the bottom end of the screw rod, and the restraining block abuts against the box body to prevent the restraining block and the screw rod from rotating relative to the box body; An adjusting member is sleeved on the outer circumference of the screw rod, the adjusting member is threadedly connected to the screw rod, and the adjusting member can rotate relative to the box body to make the screw rod rise and fall.

3. The desktop photostimulator according to claim 2, characterized in that: The outer surface of the box body includes a front end surface, the opening is arranged on the front end surface, the front end surface is also provided with a first avoidance hole, the adjustment member is passed through the first avoidance hole, and a part of the adjustment member protrudes relative to the front end surface.

4. The desktop photostimulator according to claim 2, characterized in that: The adjustment mechanism further comprises a bearing block, the adjustment member is rotatably connected to the bearing block, and the bearing block is fixedly connected to the box body to prevent the bearing block from rising and falling relative to the box body.

5. The desktop photostimulator according to claim 1, characterized in that: The box body also includes a baffle, the top end of the baffle is connected to the top edge of the opening, the bottom end of the baffle extends into the reflective cavity, and the bottom end of the baffle is arranged above the jaw rest at intervals.

6. The desktop photostimulator according to claim 5, characterized in that: The baffle comprises a shielding surface, the shielding surface faces outside the reflective cavity, and the shielding surface is a concave curved surface.

7. The desktop photostimulator according to claim 1, characterized in that: The reflecting surface is a concave spherical surface.

8. The desktop photostimulator according to claim 1, characterized in that: The desktop flash stimulator also includes an indicator light. The reflective surface is provided with a second avoidance hole. A part of the indicator light is arranged in the second avoidance hole. The second avoidance hole is arranged opposite to the opening. The position of the second avoidance hole is higher than the position of the jaw rest.

9. The desktop photostimulator according to claim 1, characterized in that: The desktop flash stimulator also includes a camera, the reflective surface is provided with a third avoidance hole, the camera and the third avoidance hole are arranged opposite to each other, and the third avoidance hole and the opening are arranged opposite to each other.

10. An electrophysiological eye diagnostic device, characterized in that: Comprising a desktop flash stimulator as described in claim 1.

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