Handheld graphic stimulator and electrophysiological eye diagnostic equipment

Abstract

The utility model provides a handheld graphic stimulator and an electrophysiological eye diagnosis device. The handheld graphic stimulator comprises a shell, a graphic display module and a connecting ring. The shell comprises a handle and a head. One end of the handle is connected to the head. The head comprises a cavity and abutment ribs. The abutment ribs are arranged on the inner wall surface of the cavity. The cavity has an opening. The graphic display module is arranged at the opening. The connecting ring is clamped with the head. The connecting ring and the abutment ribs clamp the graphic display module. The connecting ring comprises a central hole. A part of the graphic display module is exposed from the central hole. The handheld graphic stimulator has a simple structure, is easy to assemble and has a low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a handheld graphic 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, while the graphic stimulator can display specific graphics on its display screen to stimulate the human visual system.

[0003] At present, some electrophysiological eye diagnostic equipment has a handheld graphic stimulator, and the doctor can pick up the handheld graphic stimulator and put it in front of the patient's eyes to apply graphic stimulation to the patient. Since the electrophysiological eye diagnostic equipment has a handheld graphic stimulator, the device has high flexibility and convenience in use. However, the current handheld graphic stimulator has a complex structure, is not easy to assemble, and has a high cost. Utility Model Content

[0004] 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 handheld graphic stimulator, which has a simple structure, is easy to assemble and has a low cost.

[0005] The utility model also provides an eye electrophysiological diagnosis device comprising the handheld graphic stimulator.

[0006] The handheld graphic stimulator according to the first aspect of the utility model comprises: a shell, comprising a handle portion and a head, one end of the handle portion is connected to the head, the head comprises a cavity and abutment ribs, the abutment ribs are arranged on the inner wall surface of the cavity, and the cavity has an opening; a graphic display module, the graphic display module is arranged at the opening; a connecting ring, the connecting ring is clamped with the head, the connecting ring and the abutment ribs clamp the graphic display module, the connecting ring comprises a center hole, a part of the graphic display module is exposed from the center hole.

[0007] According to the handheld graphic stimulator of the first embodiment of the utility model, at least the following beneficial effects are achieved: after the connecting ring is clamped with the head, the connecting ring and the abutting ribs can clamp and fix the graphic display module, and the graphic display module does not need to be fixed by a complicated fixing structure. And because the connecting ring is connected to the head by clamping, the assembly and disassembly of the connecting ring do not require the use of a screwdriver to tighten the screws. Therefore, the handheld graphic stimulator has a simple structure, high assembly convenience, and low cost.

[0008] According to some embodiments of the utility model, the graphic display module includes: a light board, including a substrate and a plurality of light sources, the light sources are connected to the substrate, and the plurality of light sources are distributed in a rectangular array; a grille, the grille is connected to the substrate, the grille includes a plurality of light-transmitting through holes, the light-transmitting through holes are rectangular, and the plurality of light-transmitting through holes are distributed in a rectangular array, the light sources are arranged in the light-transmitting through holes, and the light sources and the light-transmitting through holes are arranged in a one-to-one correspondence; a panel, the panel is capable of transmitting light, and the grille is sandwiched between the substrate and the panel.

[0009] According to some embodiments of the utility model, a side surface of the substrate facing away from the light source abuts against the abutment rib, and a side surface of the panel facing away from the grille abuts against the connecting ring; and / or, the inner wall surface of the chamber includes a step surface, and the step surface abuts against the panel.

[0010] According to some embodiments of the utility model, the head includes a first positioning column, the first positioning column is arranged on the inner wall surface of the chamber, the outer peripheral edge of the panel is provided with a first positioning notch, and the first positioning column is arranged in the first positioning notch; and / or, the head includes a second positioning column, the second positioning column is arranged on the inner wall surface of the chamber, the outer peripheral edge of the grille is provided with a second positioning notch, the outer peripheral edge of the substrate is provided with a third positioning notch, the second positioning notch and the third positioning notch overlap, a part of the second positioning column is arranged in the second positioning notch, and another part of the second positioning column is arranged in the third positioning notch.

[0011] According to some embodiments of the utility model, the head includes an annular clamping rib, the clamping rib is arranged around the opening, the connecting ring includes an annular clamping groove, and the clamping rib is clamped with the clamping groove.

[0012] According to some embodiments of the utility model, the handheld graphic stimulator also includes a key switch, which is electrically connected to the graphic display module, and is used to turn on and off the graphic display module. The key switch is connected to the handle portion, and the key switch includes a key that can move relative to the handle portion, and the key is exposed outside the handle portion.

[0013] According to some embodiments of the present invention, two grooves spaced apart from each other are formed on the outer surface of the handle portion, and the two grooves are located on different sides of the key switch.

[0014] According to some embodiments of the utility model, the handheld graphic stimulator also includes a cable, a portion of which is arranged inside the shell, and the two ends of the handle portion are respectively a first connection end and a second connection end, the first connection end is connected to the head, and the cable passes through the second connection end to the outside of the shell, one end of the cable located inside the shell is electrically connected to the graphic display module, and one end of the cable located outside the shell is used to connect to a power supply so that the power supply can power the graphic display module.

[0015] According to some embodiments of the present invention, the handheld graphic stimulator also includes a wire harness fixing part, the cable fixing part is located inside the handle part, the cable fixing part is detachably connected to the handle part, the cable fixing part and the handle part jointly define a wire passing hole, and the cable is passed through the wire passing hole.

[0016] The ocular electrophysiological diagnostic device according to the second embodiment of the utility model includes the handheld graphic stimulator as described in the first embodiment.

[0017] The ocular electrophysiological diagnostic device according to the embodiment of the second aspect of the utility model has at least the following beneficial effects: since the handheld graphic stimulator of the device has a simple structure, the device has a simple structure and low cost.

[0018] 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

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 A three-dimensional diagram of a handheld graphic stimulator according to an embodiment of the utility model;

[0021] Figure 2 for Figure 1 An exploded view of the handheld graphic stimulator shown;

[0022] Figure 3 for Figure 1 A cross-sectional view of a handheld graphic stimulator is shown;

[0023] Figure 4 for Figure 3 A magnified image of area A;

[0024] Figure 5 This is the main view of the light board;

[0025] Figure 6 is the front view of the grille;

[0026] Figure 7 is a schematic diagram of the internal structure of the shell;

[0027] Figure 8 is a schematic diagram of the head of the shell;

[0028] Fig. 9 This is a three-dimensional diagram of an eye electrophysiological diagnostic device according to an embodiment of the present utility model.

[0029] Reference numerals:

[0030] 100-eye electrophysiological diagnostic 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;

[0031] 201-housing, 202-head, 203-handle, 204-button switch, 205-graphic display module, 206-connecting ring, 207-button, 208-chamber, 209-opening, 210-light board, 211-grille, 212-panel, 213-substrate, 214-light source, 215-light-transmitting through hole, 216-clamping rib, 217-clamping groove, 218-step surface, 219-third positioning notch, 220-second positioning notch, 221-first positioning notch, 222-wiring harness fixing part, 223-wire hole, 224-abutting rib, 225-first positioning column, 226-second positioning column, 227-cable, 228-connector, 229-center hole. DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Figures 1 to 3 FIG. 1 shows a handheld graphic stimulator 110 according to an embodiment of the present invention. Figures 1 to 3 As shown, the handheld graphic stimulator 110 includes a housing 201, a graphic display module 205 and a connecting ring 206. The housing 201 includes a handle portion 203 and a head portion 202. The head portion 202 is hemispherical. One end of the handle portion 203 is connected to the head portion 202. The head portion 202 includes a cavity 208 and abutment ribs 224. The abutment ribs 224 are arranged on the inner wall surface of the cavity 208 (such as Figure 8 As shown). The abutting rib 224 can be annular or arc-shaped. The chamber 208 has an opening 209, and the graphic display module 205 is arranged at the opening 209. The graphic displayed by the graphic display module 205 is used to stimulate the patient's visual system. Figure 4 As shown, the connecting ring 206 is clamped with the head 202, and the connecting ring 206 and the abutting rib 224 jointly clamp the graphic display module 205. A part of the graphic display module 205 is exposed from the central hole 229 of the connecting ring 206. After the connecting ring 206 is clamped with the head 202, the connecting ring 206 and the abutting rib 224 can clamp and fix the graphic display module 205, and the graphic display module 205 does not need to be fixed by a complex fixing structure. And because the connecting ring 206 is connected to the head 202 in a clamping manner, the assembly and disassembly of the connecting ring 206 do not require the use of a screwdriver to tighten the screws. Therefore, the handheld graphic stimulator 110 has a simple structure, high assembly convenience, and low cost.

[0037] like Figure 2 As shown, in some embodiments, the graphic display module 205 includes a light board 210, a grille 211, and a panel 212. The light board 210 includes a substrate 213 and a plurality of light sources 214. The substrate 213 may be a PCB, and the light sources 214 may be LED lamp beads. Figure 5As shown, the light source 214 is connected to the substrate 213, and the multiple light sources 214 are distributed in a rectangular array. The multiple objects are distributed in a rectangular array, which means that the number of rows of objects is not less than 2, the number of columns of objects is not less than 2, and the rows and columns are perpendicular to each other. The grid 211 and the substrate 213 are connected to each other, for example, the two can be connected by screws. Figure 6 As shown, the grille 211 includes a plurality of light-transmitting through holes 215, the light-transmitting through holes 215 are rectangular, and the plurality of light-transmitting through holes 215 are distributed in a rectangular array. The light source 214 is disposed in the light-transmitting through holes 215 (eg, Figure 3 As shown), the light source 214 and the light-transmitting through hole 215 are arranged in a one-to-one correspondence. "The light source 214 and the light-transmitting through hole 215 are arranged in a one-to-one correspondence" means that one light source 214 is arranged in one light-transmitting through hole 215, and one light-transmitting through hole 215 only accommodates one light source 214. The panel 212 is made of a light-transmitting material (such as glass, transparent plastic), and the panel 212 is light-transmitting so that the light emitted by the light source 214 can pass through the panel 212 and be emitted outward. The grid 211 is sandwiched between the substrate 213 and the panel 212. In addition, in order to prevent the light emitted by the light source 214 from damaging the patient's eyes, the panel 212 can be set to be translucent, or the panel 212 can be black.

[0038] The principle of displaying graphics by the above-mentioned graphic display module 205 is as follows: some light sources 214 emit light and other light sources 214 do not emit light, the area corresponding to the light sources 214 that emit light in the panel 212 is brighter, and the area corresponding to the light sources 214 that do not emit light in the panel 212 is darker; in some display modes, a non-light source 214 is provided between two light-emitting light sources 214, and a light-emitting light source 214 is provided between two non-light-emitting light sources 214, and the graphics displayed on the panel 212 are checkerboard graphics. The graphic display module 205 has a simple structure and low cost. In other embodiments, the graphic display module 205 can also use a liquid crystal display screen or other types of display screens, as long as the graphic display module 205 can display graphics.

[0039] In some embodiments, the handheld graphic stimulator 110 further includes a cable 227, and the direction of the cable 227 is generally as follows: Figure 7 As shown by the dotted line in FIG. 2 , a portion of the cable 227 is disposed inside the housing 201, and another portion of the cable 227 is disposed outside the handle portion 203. The two ends of the handle portion 203 are respectively a first connection end and a second connection end. Figure 7 In the embodiment, the first connection end is the top of the handle portion 203, the second connection end is the bottom of the handle portion 203, the first connection end is connected to the head portion 202, and the cable 227 passes through the second connection end to the outside of the housing 201. One end of the cable 227 located inside the housing 201 is electrically connected to the graphic display module 205. More specifically, as Figure 3 As shown, the light board 210 also includes a connector 228, and the connector 228 is located on the side surface of the substrate 213 facing away from the lamp beads, and the cable 227 can be connected to the connector 228. One end of the cable 227 located outside the housing 201 is used to connect to a power source (the power source is not shown). The power source can supply power to the graphic display module 205, so that the light source 214 emits light, and then the graphic display module 205 displays graphics. In other embodiments, the handheld graphic stimulator 110 may not be provided with a cable 227 that passes through the outside of the housing, and the handheld graphic stimulator 110 can have its own power source (such as a battery), and the power source is located inside the housing.

[0040] like Figure 7 As shown, in some embodiments, the handheld graphic stimulator 110 further includes a harness fixture 222, which is located inside the handle portion 203, and the harness fixture 222 is detachably connected to the handle portion 203. The harness fixture 222 and the handle portion 203 jointly define a wire hole 223, and the cable 227 is passed through the wire hole 223. More specifically, the harness fixture 222 and the handle portion 203 can be connected by screws, and the handle portion 203 is provided with a notch, and the harness fixture 222 covers the notch to form the wire hole 223. The harness fixture 222 is used to constrain the position of the cable 227 to prevent the cable 227 from being pulled or wound, thereby reducing the risk of damage to the cable 227.

[0041] like Figure 1 As shown, the handheld graphic stimulator 110 further includes a key switch 204, and the key switch 204 is electrically connected to the graphic display module 205 (the electrical connection can be achieved through a wire, which is not shown). Figure 2 As shown, the key switch 204 is connected to the handle portion 203, and the key switch 204 includes a key 207 that can move relative to the handle portion 203, and the key 207 is exposed outside the handle portion 203 so that the user can press the key 207. The key switch 204 is used to turn on and off the graphic display module 205. The user can turn on the graphic display module 205 by pressing the key 207. There are different settings for turning off the graphic display module 205. For example, in some embodiments, after the user presses the key 207 once, the graphic display module 205 is turned on; after the user presses the key 207 again, the graphic display module 205 is turned off. For another example, in other embodiments, after the user releases the key 207, the graphic display module 205 is turned off.

[0042] like Figure 7 As shown, the outer surface of the handle portion 203 is formed with two grooves spaced apart from each other, and the two grooves are located on different sides of the key switch 204. Figure 7In the embodiment, one groove is located on the upper side of the key switch 204, and the other groove is located on the lower side of the key switch 204. The groove can accommodate the user's fingers. The handle portion 203 with the groove is convenient for the user to hold and can reduce the risk of the handle portion 203 slipping from the user's hand.

[0043] like Figure 4 As shown, the side surface of the substrate 213 facing away from the light source 214 abuts against the abutting rib 224 , and the side surface of the panel 212 facing away from the grille 211 abuts against the connecting ring 206 , so that the connecting ring 206 and the abutting rib 224 can fix the graphic display module 205 .

[0044] like Figure 4 As shown, the diameter of the panel 212 is greater than the diameter of the grille 211, and the outer peripheral edge of the panel 212 protrudes relative to the outer peripheral edge of the grille 211. The panel 212 and the grille 211 abut against each other, and the panel 212 and the grille 211 are not connected by screws or glue. The inner wall surface of the chamber 208 of the panel 212 includes a step surface 218, and the step surface 218 abuts against the panel 212, so as to position the panel 212. In addition, the head 202 includes a first positioning column 225 (such as Figure 8 As shown), the outer peripheral edge of the panel 212 is provided with a first positioning notch 221 (as shown Figure 2 As shown in FIG. 2 , the first positioning post 225 is disposed in the first positioning notch 221, thereby realizing the positioning of the panel 212. In addition, the first positioning post 225 and the first positioning notch 221 have a foolproof effect, thereby preventing the user from making mistakes when assembling the handheld graphic stimulator 110. The first positioning post 225 is disposed on the inner wall surface of the chamber 208, and the cross section of the first positioning post 225 is semicircular, and the first positioning notch 221 can be semicircular.

[0045] Similarly, in order to achieve the effect of foolproofing and positioning the graphic display module 205, the head 202 further includes a second positioning column 226 (eg, Figure 8 The outer peripheral edge of the grille 211 is provided with a second positioning notch 220 (as shown in FIG. Figure 6 The outer peripheral edge of the substrate 213 is provided with a third positioning notch 219 (as shown in FIG. Figure 5 The second positioning notch 220 and the third positioning notch 219 overlap, a portion of the second positioning post 226 is disposed in the second positioning notch 220, and another portion of the second positioning post 226 is disposed in the third positioning notch 219. The cross section of the second positioning post 226 may be semicircular, and the second positioning notch 220 and the third positioning notch 219 may be semicircular.

[0046] like Figure 8 As shown, the head 202 further includes an annular clamping rib 216, which is disposed around the opening 209. Figure 4 As shown, the connecting ring 206 includes an annular snap-fit ​​groove 217, and the snap-fit ​​rib 216 is snap-fitted with the snap-fit ​​groove 217. In order to achieve the snap-fit ​​between the head 202 and the connecting ring 206, in other embodiments, the positions of the snap-fit ​​rib 216 and the snap-fit ​​groove 217 can also be interchanged, that is, the connecting ring 206 is provided with the snap-fit ​​rib 216, and the head 202 is provided with the snap-fit ​​groove 217.

[0047] The utility model also provides an electrophysiological eye diagnosis device, which includes the handheld graphic stimulator described in any of the above embodiments. Fig. 9 As shown, 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 jaw support 103, a main display 105 and a printer 107. The trolley 101 includes a table 113, a box 115 and rollers 111. The box 115 is installed on the bottom surface of the table 113. The power supply for powering various stimulators and the host of the device 100 are contained in the box 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. The handheld flash stimulator 114 and the handheld graphic stimulator 110 can be removed from the trolley 101. The handheld flash stimulator 114 and the desktop flash stimulator 104 can both 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 capable of displaying graphics, and the graphic stimulator stimulates the patient's eyes through specific graphics (e.g., checkerboard graphics). The jaw support 103 is disposed in front of the desktop graphic stimulator 102, and the jaw support 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.

[0048] 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. A handheld graphic stimulator, characterized in that, include: The housing comprises a handle portion and a head portion, one end of the handle portion is connected to the head portion, the head portion comprises a cavity and abutment ribs, the abutment ribs are arranged on the inner wall surface of the cavity, and the cavity has an opening; A graphic display module, wherein the graphic display module is arranged at the opening; A connecting ring is clamped with the head, the connecting ring and the abutting rib clamp the graphic display module, the connecting ring comprises a center hole, a part of the graphic display module is exposed from the center hole.

2. The handheld graphic stimulator according to claim 1, characterized in that The graphic display module comprises: A light board, comprising a substrate and a plurality of light sources, wherein the light sources are connected to the substrate and the plurality of light sources are distributed in a rectangular array; A grid, the grid is connected to the substrate, the grid includes a plurality of light-transmitting through holes, the light-transmitting through holes are rectangular, and the plurality of light-transmitting through holes are distributed in a rectangular array, the light sources are arranged in the light-transmitting through holes, and the light sources and the light-transmitting through holes are arranged in a one-to-one correspondence; The panel is light-transmissive, and the grille is sandwiched between the substrate and the panel.

3. The handheld graphic stimulator according to claim 2, characterized in that A surface of the substrate facing away from the light source abuts against the abutting rib, and a surface of the panel facing away from the grille abuts against the connecting ring; and / or, The inner wall surface of the chamber includes a step surface, and the step surface abuts against the panel.

4. The handheld graphic stimulator according to claim 2, characterized in that The head includes a first positioning column, the first positioning column is arranged on the inner wall surface of the chamber, the outer peripheral edge of the panel is provided with a first positioning notch, and the first positioning column is arranged in the first positioning notch; and / or, The head includes a second positioning column, which is arranged on the inner wall surface of the chamber, the outer peripheral edge of the grille is provided with a second positioning notch, the outer peripheral edge of the substrate is provided with a third positioning notch, the second positioning notch and the third positioning notch overlap, a part of the second positioning column is arranged in the second positioning notch, and another part of the second positioning column is arranged in the third positioning notch.

5. The handheld graphic stimulator according to claim 1, characterized in that The head includes an annular clamping rib, which is arranged around the opening; the connecting ring includes an annular clamping groove, and the clamping rib is clamped with the clamping groove.

6. The handheld graphic stimulator according to claim 1, characterized in that The handheld graphic stimulator also includes a key switch, which is electrically connected to the graphic display module and is used to turn on and off the graphic display module. The key switch is connected to the handle portion and includes a key that can move relative to the handle portion, and the key is exposed outside the handle portion.

7. The handheld graphic stimulator according to claim 6, characterized in that: Two grooves spaced apart from each other are formed on the outer surface of the handle portion, and the two grooves are located at different sides of the key switch.

8. The handheld graphic stimulator according to claim 1, characterized in that The handheld graphic stimulator also includes a cable, a portion of which is arranged inside the shell, and the two ends of the handle are respectively a first connection end and a second connection end, the first connection end is connected to the head, and the cable passes through the second connection end to the outside of the shell, one end of the cable located inside the shell is electrically connected to the graphic display module, and the other end of the cable located outside the shell is used to connect to a power source so that the power source can power the graphic display module.

9. The handheld graphic stimulator according to claim 8, characterized in that The handheld graphic stimulator also includes a wire harness fixing part, the cable fixing part is located inside the handle part, the cable fixing part is detachably connected to the handle part, the cable fixing part and the handle part jointly define a wire passing hole, and the cable is passed through the wire passing hole.

10. An electrophysiological eye diagnostic device, characterized in that: Comprising a handheld graphic stimulator as claimed in any one of claims 1 to 9.

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