Auxiliary stent for fluorescein fundus angiography examination

Abstract

The present invention discloses an auxiliary bracket for fluorescein fundus angiography examination, comprising a base, support rods fixedly connected to two symmetrical positions on both sides of the base, and a clamping mechanism for fixing the head of the examinee on the support rods. The clamping mechanism comprises two U-shaped shells fixedly connected to the opposite surfaces near the top of the two support rods, a moving rod is penetrated through the top center position of the U-shaped shell and is limitedly slidably connected, the top of the moving rod is fixedly connected to an arc plate for placing the head of the examinee, and both sides of the arc plate are rotatably connected to arc clamping plates for clamping the head of the examinee through pin shafts, and an auxiliary mechanism for rotating the arc clamping plates toward or away from each other is provided on the U-shaped shell, and the auxiliary mechanism comprises columnar rods penetrated through the top of the U-shaped shell near the edge positions on both sides and are limitedly slidably connected to push the arc clamping plates for clamping.

Description

Technical Field

[0001] The invention relates to the technical field of fundus angiography examination auxiliary brackets, in particular to a fluorescein fundus angiography examination auxiliary bracket. Background Art

[0002] FFA is a commonly used and important examination method in contemporary ophthalmology for diagnosing fundus diseases. It is crucial for the diagnosis, differential diagnosis, treatment selection, and prognosis of fundus diseases. FFA uses a camera equipped with a special filter combination to record the dynamic changes in the fundus, using the fluorescence emitted by intravenously injected fluorescein as it circulates in the bloodstream of the eye. This technology aids in the diagnosis of diseases. For example, different forms of visual field defects can occur in brain tumors, brain trauma, glaucoma, and optic nerve atrophy. This can be used to determine the location of the tumor or injury, providing a basis for further treatment. It also helps in the differential diagnosis of various diseases with varying degrees of visual field defects.

[0003] When fluorescein fundus angiography is performed on a person being examined, it is difficult to fix the person's head with the existing auxiliary bracket, making it difficult for the camera to aim at the person's eyes, and the images taken by the camera are easily blurred, resulting in inaccurate test data and poor use effect.

[0004] Therefore, we proposed a fluorescein fundus angiography examination auxiliary stent. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary bracket for fluorescein fundus angiography examination, which has the advantage of fixing the patient's head and solves the problems in the background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an auxiliary bracket for fluorescein fundus angiography examination, comprising a base, support rods fixedly connected to two symmetrical positions on both sides of the base, the support rods being provided with a clamping mechanism for fixing the head of the examinee, the clamping mechanism comprising two support rods fixedly connected to opposite surfaces near the top, a moving rod pierced through the top center position of the U-shaped shell and connected with a limited sliding connection, an arc-shaped plate for placing the head of the examinee on the top of the moving rod being fixedly connected, both sides of the arc-shaped plate being rotatably connected to arc-shaped clamping plates for clamping the head of the examinee through pin shafts, and an auxiliary mechanism for rotating the arc-shaped clamping plates toward or away from each other is provided on the U-shaped shell.

[0007] Preferably, the auxiliary mechanism includes a top of the U-shaped shell that is penetrated near the edges of both sides and is limitedly slidably connected to a columnar rod that pushes the arc-shaped clamp for clamping, the bottoms of the two columnar rods are fixedly connected to a U-shaped rod that enables the columnar rod to move up and down and reciprocate, the end of the U-shaped rod away from the columnar rod penetrates the bottom of the U-shaped shell and is limitedly slidably connected, and the inner wall of the U-shaped shell is connected to both sides of the moving rod through a pin shaft to enable the moving rod and the U-shaped rod to move toward or away from each other.

[0008] Preferably, a first rectangular groove is provided on both sides symmetrical positions near the bottom of the moving rod, and the same second rectangular groove is provided on the opposite surface near the top of the U-shaped rod, and the two adjusting blocks are movably connected to the inner wall of the first rectangular groove near one end of the moving rod, and the two adjusting blocks are movably connected to the inner wall of the second rectangular groove near one end of the U-shaped rod, and the moving rod and the opposite surface of the U-shaped rod are fixedly connected to a second return spring that pushes the moving rod and the U-shaped rod to move backwards, and the opposite surface of the U-shaped rod near the top is fixedly connected to a limiting plate, and the upper surface of the limiting plate and the opposite surface of the U-shaped shell are fixedly connected to the first return spring that pushes the U-shaped rod to move downward.

[0009] Preferably, the support rod is also provided with a transmission mechanism that pushes the movable rod and the U-shaped rod to move toward each other, and the transmission mechanism includes a rectangular shell fixedly connected on opposite surfaces of the two support rods and located below the U-shaped shell, and screws are passed through both sides of the rectangular shell and are limited in rotation. One end of the screw passes through the support rod and is driven by the power mechanism to rotate back and forth, and the upper limit rotation of the screw is connected to an internal threaded sleeve for horizontal reciprocating movement, and an inclined surface is provided on the top of the internal threaded sleeve, and inclined surfaces adapted to the internal threaded sleeve are provided on both sides of the bottom of the U-shaped rod. The internal threaded sleeve is movably connected to the U-shaped rod and pushes the U-shaped rod to move upward.

[0010] Preferably, a track plate is fixedly connected to the end of the base away from the support rod near the center of the edge, and the inner wall of the track plate is slidingly connected to a lifting rod that performs lifting and reciprocating motion. The top of the lifting rod is fixedly connected to a placement plate, and the upper surface of the placement plate is fixedly connected to the imaging device body for taking pictures of the eyes of the examinee, and a lens is fixedly connected to the side of the imaging device body close to the moving rod.

[0011] Preferably, the rectangular shell is provided with an adjustment mechanism that enables the track plate to move up and down and reciprocate, and the adjustment mechanism includes an elliptical hole groove on the end of the rectangular shell away from the track plate, and the end of the internal threaded sleeve close to the elliptical hole groove passes through the elliptical hole groove through a pin shaft and is rotatably connected to a Y-shaped rod, and a rotating rod is passed through and limitedly rotated on the support rod on the side away from the internal threaded sleeve near the bottom position, and the end of the rotating rod close to the Y-shaped rod is fixedly connected to a fixed plate that slides on the inner wall of the Y-shaped rod.

[0012] Preferably, the rectangular shell is fixedly connected to an adjusting plate on one side away from the fixed plate, the adjusting plate is fixedly connected to a first connecting seat on one end away from the rotating rod, the first connecting seat is rotatably connected to a second connecting seat on one end away from the adjusting plate via a pin shaft, the second connecting seat is fixedly connected to an insertion rod on one end away from the first connecting seat, the insertion rod is slidingly connected to a sleeve rod on one end away from the second connecting seat, and the sleeve rod is fixedly connected to the lifting rod on one end away from the insertion rod.

[0013] Preferably, the track plate is provided with a cleaning mechanism for cleaning the lens, and the cleaning mechanism includes a storage box for storing cleaning liquid, which is arranged on the same side of the lens near the top of the track plate, and a connecting pipe is penetrated and fixedly connected to the side of the storage box away from the track plate, and the end of the connecting pipe away from the storage box is fixedly connected to a nozzle for spraying cleaning liquid onto the lens for cleaning, and the end of the connecting pipe close to the nozzle is fixedly connected to a micro pump, and the top of the storage box is fixedly connected to a push switch for turning the micro pump on and off, and the push switch is electrically connected to the micro pump.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The U-shaped rod is fixedly connected to the U-shaped rod by the adjusting block, and the adjusting block is movably connected to the first rectangular slot and the second rectangular slot. As the U-shaped rod moves upward, the adjusting block pulls the moving rod and the U-shaped rod to move toward each other, and the column rod is fixedly connected to the U-shaped rod by the column rod, and the column rod moves axially upward on the U-shaped housing. As the arc clamping plate is rotated on the arc plate, the column rod pushes the two arc clamping plates to move toward each other to clamp the head of the inspected person, and the moving rod drives the arc plate to move axially downward, so that the two arc clamping plates can better move toward each other, avoiding the problem that the camera is difficult to align with the eyes of the inspected person and the shooting picture is easily blurred.

[0016] The internal threaded sleeve pushes the Y-shaped rod to drive the rotating rod to rotate on the fixed axis, and the adjusting plate is swung upward on the rotating rod, so that the inserting rod and the sleeve rod drive the lifting rod to move axially upward, so that the lens on the imaging device body can be stably aligned with the examinee to take eye photos.

[0017] The coordinated use of the above-mentioned structure solves the problem that when fluorescein fundus angiography is used to examine the person, the existing auxiliary bracket makes it difficult to fix the person's head, making it difficult for the camera to aim at the person's eyes, and the image taken by the camera is easily blurred, thereby leading to inaccurate test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic front view of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a rear view schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 3 It is a front cross-sectional view of the three-dimensional structure of the U-shaped shell and the rectangular shell of the present invention;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention;

[0022] Figure 5 For the present invention Figure 3 Schematic diagram of the structure at A in the middle;

[0023] Figure 6 For the present invention Figure 2 Schematic diagram of the structure at B in the middle;

[0024] Figure 7 For the present invention Figure 1 Schematic diagram of the structure at C in the middle;

[0025] Figure 8 This is a schematic diagram of the three-dimensional structure of the curved plate and the curved splint of the present invention;

[0026] Figure 9 It is a schematic diagram of the three-dimensional structure of the U-shaped rod structure of the present invention.

[0027] In the figure: 1. base; 2. support rod; 3. U-shaped shell; 4. moving rod; 41. first rectangular groove; 42. second return spring; 5. arc plate; 6. arc clamping plate; 7. U-shaped rod; 71. second rectangular groove; 72. limit plate; 73. first return spring; 8. cylindrical rod; 9. adjustment block; 10. rectangular shell; 101. elliptical hole groove; 11. screw; 12. internal thread sleeve; 13. track plate; 14. lifting rod; 15. placement plate; 16. imaging device body; 161. lens; 18. Y-shaped rod; 19. rotating rod; 20. fixing plate; 21. adjustment plate; 22. insertion rod; 23. sleeve rod; 201. first connecting seat; 202. second connecting seat; 24. storage box; 25. connecting pipe; 26. nozzle; 27. micro pump; 28. press switch. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0029] See also Figures 1 to 9 The present invention provides a technical solution: an auxiliary stent for fluorescein fundus angiography examination.

[0030] It includes a base 1, with support rods 2 fixedly connected to the symmetrical positions on both sides of the base 1, and a clamping mechanism for fixing the head of the examinee on the support rods 2. The clamping mechanism includes two U-shaped shells 3 fixedly connected to the opposite surfaces near the top of the two support rods 2, and a moving rod 4 is penetrated and limitedly slidably connected to the top center of the U-shaped shell 3. The top of the moving rod 4 is fixedly connected to an arc-shaped plate 5 for placing the head of the examinee, and both sides of the arc-shaped plate 5 are rotatably connected to an arc-shaped clamping plate 6 for clamping the head of the examinee through a pin shaft. The U-shaped shell 3 is provided with an auxiliary mechanism for rotating the arc-shaped clamping plates 6 toward or away from each other.

[0031] The auxiliary mechanism includes a columnar rod 8 that penetrates the top of the U-shaped shell 3 near the two side edges and is limitedly slidably connected to push the arc-shaped clamping plate 6 for clamping. The bottoms of the two columnar rods 8 are fixedly connected to U-shaped rods 7 that enable the columnar rods 8 to move up and down. The end of the U-shaped rod 7 away from the columnar rod 8 penetrates the bottom of the U-shaped shell 3 and is limitedly slidably connected. The inner wall of the U-shaped shell 3 near both sides of the moving rod 4 is rotatably connected to an adjustment block 9 through a pin shaft to enable the moving rod 4 and the U-shaped rod 7 to move toward or away from each other.

[0032] The moving rod 4 is provided with a first rectangular groove 41 at symmetrical positions on both sides near the bottom, and the opposite surface of the U-shaped rod 7 near the top is provided with the same second rectangular groove 71. The two adjusting blocks 9 are movably connected to the inner wall of the first rectangular groove 41 near one end of the moving rod 4, and the two adjusting blocks 9 are movably connected to the inner wall of the second rectangular groove 71 near one end of the U-shaped rod 7. The moving rod 4 and the opposite surface of the U-shaped rod 7 are fixedly connected to a second return spring 42 that pushes the moving rod 4 and the U-shaped rod 7 to move away from each other. The opposite surface of the U-shaped rod 7 near the top is fixedly connected to a limit plate 72. The upper surface of the limit plate 72 and the opposite surface of the U-shaped shell 3 are fixedly connected to a first return spring 73 that pushes the U-shaped rod 7 to move downward;

[0033] The support rod 2 is also provided with a transmission mechanism for pushing the movable rod 4 and the U-shaped rod 7 to move toward each other. The transmission mechanism includes a rectangular shell 10 fixedly connected on the opposite surfaces of the two support rods 2 and below the U-shaped shell 3. Screws 11 are passed through both sides of the rectangular shell 10 and are connected for limited rotation. One end of the screw 11 passes through the support rod 2 and is driven by the power mechanism to rotate reciprocatingly. The screw 11 is connected for limited rotation with an internal threaded sleeve 12 for horizontal reciprocating movement. The top of the internal threaded sleeve 12 is provided with an inclined surface, and both sides of the bottom of the U-shaped rod 7 are provided with inclined surfaces adapted to the internal threaded sleeve 12. The internal threaded sleeve 12 is movably connected to the U-shaped rod 7 and pushes the U-shaped rod 7 to move upward.

[0034] By providing the base 1, the support rod 2 can be better placed on the base 1, and the U-shaped shell 3 provided on the support rod 2 can make the U-shaped shell 3 more stably placed on the support rod 2, and the moving rod 4 provided on the U-shaped shell 3 can make the moving rod 4 rotate on a fixed axis on the U-shaped shell 3, and the curved plate 5 provided on the moving rod 4 can make the head of the examinee more conveniently placed on the curved plate 5, and the curved splint 6 provided on the curved plate 5, as the curved splint 6 rotates on a fixed axis on the curved plate 5, the two curved splints 6 can clamp and fix the head of the examinee;

[0035] The auxiliary mechanism provided on the U-shaped shell 3 enables the two arc-shaped clamping plates 6 to move back and forth toward or away from each other. The columnar rod 8 provided on the U-shaped shell 3 enables the columnar rod 8 to move up and down and reciprocate on the U-shaped shell 3, and the U-shaped rod 7 provided on the columnar rod 8 enables the U-shaped rod 7 to be placed more stably on the columnar rod 8. The adjusting block 9 provided on the U-shaped shell 3 enables the adjusting block 9 to rotate back and forth on a fixed axis on the U-shaped shell 3. The first rectangular slot 41 provided on the moving rod 4 and the first rectangular slot 42 provided on the U-shaped rod 7 are provided. The two rectangular grooves 71, along with the fixed-axis reciprocating rotation of the adjustment block 9, enable the movable rod 4 and the adjustment block 9 to better reciprocate toward or away from each other. The second return spring 42 provided on the movable rod 4 enables the second return spring 42 to push the U-shaped rod 7 to return to its opposite position. The limiting plate 72 provided on the U-shaped rod 7 and the first return spring 73 provided on the limiting plate 72, along with the fixed connection between the limiting plate 72 and the U-shaped rod 7, enable the first return spring 73 to return to its position and better push the U-shaped rod 7 to move downward.

[0036] Through the rectangular shell 10 provided on the support rod 2 and the screw 11 provided on the rectangular shell 10, the screw 11 is made to rotate reciprocatingly on a fixed axis on the rectangular shell 10, and the internal threaded sleeve 12 provided on the rectangular shell 10, along with the reciprocating rotation of the screw 11, makes the internal threaded sleeve 12 perform axial reciprocating movement on the screw 11, through the internal threaded sleeve 12 and the inclined surface provided on the U-shaped rod 7, and the internal threaded sleeve 12 is movably connected to the U-shaped rod 7, as the internal threaded sleeve 12 and the U-shaped rod 7 move toward each other, the internal threaded sleeve 12 can more conveniently push the U-shaped rod 7 to move upward.

[0037] The above-mentioned mechanism drives the screw 11 to rotate reciprocatingly on a fixed axis through the power mechanism, so that the internal threaded sleeve 12 performs axial reciprocating movement on the screw 11, and as the internal threaded sleeve 12 and the U-shaped rod 7 move toward each other, the internal threaded sleeve 12 better pushes the U-shaped rod 7 to move axially, through the adjusting block 9 provided on the U-shaped shell 3, and the adjusting block 9 is movably connected with the first rectangular slot 41 and the second rectangular slot 71, as the U-shaped rod 7 moves upward, the adjusting block 9 pulls the moving rod 4 and the U-shaped rod 7 to move toward each other, and is fixedly connected to the U-shaped rod 7 through the columnar rod 8, and the columnar rod 8 performs upward axial movement on the U-shaped shell 3, as the arc clamping plate 6 is rotated and connected on the arc plate 5, the columnar rod 8 pushes the two arc clamping plates 6 to move toward each other to clamp and fix the head of the examinee, as the moving rod 4 drives the arc plate 5 to move downward axially, the two arc clamping plates 6 can better move toward each other, avoiding the problem that the camera is difficult to align with the examinee's eyes and the shooting picture is easily blurred. Example 2

[0038] On the basis of the first embodiment, further steps are as follows:

[0039] A track plate 13 is fixedly connected to the end of the base 1 away from the support rod 2 near the center of the edge. A lifting rod 14 for lifting and reciprocating motion is slidably connected to the inner wall of the track plate 13. A placement plate 15 is fixedly connected to the top of the lifting rod 14. The upper surface of the placement plate 15 is fixedly connected to the imaging device body 16 for photographing the examinee's eyes. A lens 161 is fixedly connected to the imaging device body 16 on the side near the moving rod 4.

[0040] The rectangular housing 10 is provided with an adjustment mechanism that enables the track plate 13 to move up and down and reciprocate. The adjustment mechanism includes an elliptical hole 101 on the end of the rectangular housing 10 away from the track plate 13, and an end of the internal threaded sleeve 12 close to the elliptical hole 101 passes through the elliptical hole 101 through a pin and is rotatably connected to a Y-shaped rod 18. A rotating rod 19 is passed through the support rod 2 on the side away from the internal threaded sleeve 12 near the bottom position and is limitedly rotatably connected. The end of the rotating rod 19 close to the Y-shaped rod 18 is fixedly connected to a fixed plate 20 that slides on the inner wall of the Y-shaped rod 18;

[0041] The rectangular shell 10 is fixedly connected to an adjusting plate 21 on one side away from the fixed plate 20, and the adjusting plate 21 is fixedly connected to a first connecting seat 201 on one end away from the rotating rod 19. The first connecting seat 201 is rotatably connected to a second connecting seat 202 on one end away from the adjusting plate 21 through a pin shaft, and the second connecting seat 202 is fixedly connected to an inserting rod 22 on one end away from the first connecting seat 201. The inserting rod 22 is slidingly connected to a sleeve rod 23 on one end away from the second connecting seat 202, and the sleeve rod 23 is fixedly connected to the lifting rod 14 on one end away from the inserting rod 22.

[0042] The track plate 13 provided on the base 1 allows the lifting rod 14 to be lifted and reciprocated on the track plate 13, and the placement plate 15 provided on the lifting rod 14 allows the imaging device body 16 and the lens 161 to be placed more stably on the placement plate 15. The elliptical hole 101 provided on the rectangular shell 10 and the Y-shaped rod 18 provided on the internal threaded sleeve 12 are movably connected with the Y-shaped rod 18, so that the Y-shaped rod 18 is rotated on a fixed axis on the internal threaded sleeve 12. The rotating rod 19 provided on the support rod 2 allows the rotating rod 19 to be rotated on a fixed axis on the support rod 2, and the fixed plate 20 provided on the rotating rod 19 is accompanied As the internal threaded sleeve 12 moves axially back and forth, the Y-shaped rod 18 drives the fixed plate 20 and the rotating rod 19 to rotate on the support rod 2, and an adjustment plate 21 is provided on the rotating rod 19, so that the adjustment plate 21 can be placed more stably on the rotating rod 19, and the first connecting seat 201 provided on the adjustment plate 21 is used to make the second connecting seat 202 rotate on the first connecting seat 201, and the insertion rod 22 provided on the second connecting seat 202 and the sleeve rod 23 provided on the insertion rod 22, accompanied by the axial reciprocating movement of the insertion rod 22 and the sleeve rod 23, the sleeve rod 23 can better pull the lifting rod 14 to perform lifting and reciprocating movement on the track plate 13.

[0043] The imaging device 16, fluorescein fundus angiography, injects fluorescein contrast agent into the elbow vein and uses a specific filter and fundus camera to capture fundus images. It can clearly show the microscopic structure of the microcirculation, down to the capillary level. It can also fully and systematically describe the normal or abnormal state of the living body's circulation in a dynamic manner, and can record it continuously and rapidly.

[0044] In the above structure, the internal threaded sleeve 12 moves back and forth on the screw rod 11, so that the Y-shaped rod 18 drives the rotating rod 19 to rotate on the support rod 2, and the adjusting plate 21 provided on the rotating rod 19, along with the rotating rod 19 rotating back and forth on the support rod 2, drives the adjusting plate 21 to swing back and forth on the fixed axis, through the first connecting seat 201 provided on the adjusting plate 21, and the second connecting seat 202 provided on the first connecting seat 201, along with the first connecting seat 201 and the second connecting seat 202 rotating and connected by the pin shaft, so that the insertion rod 2 2 and the sleeve rod 23 can better drive the lifting rod 14 to move up and down and reciprocate, and can push the U-shaped rod 7 and the moving rod 4 to move toward each other through the internal threaded sleeve 12, so that the two arc-shaped clamping plates 6 clamp and fix the head of the examinee. At the same time, the internal threaded sleeve 12 pushes the Y-shaped rod 18 to drive the rotating rod 19 to rotate on a fixed axis, and the adjustment plate 21 swings upward on the rotating rod 19 on a fixed axis, so that the insertion rod 22 and the sleeve rod 23 drive the lifting rod 14 to move axially upward, so that the lens 161 on the imaging device body 16 can be stably aligned with the examinee to take eye photos. Example 3

[0045] On the basis of the second embodiment, further steps are as follows:

[0046] A cleaning mechanism for cleaning the lens 161 is provided on the track plate 13. The cleaning mechanism includes a storage box 24 for storing cleaning liquid, which is arranged on the same side of the lens 161 near the top of the track plate 13. A connecting pipe 25 is penetrated and fixedly connected to the side of the storage box 24 away from the track plate 13. The end of the connecting pipe 25 away from the storage box 24 is fixedly connected to a nozzle 26 for spraying cleaning liquid onto the lens 161 and cleaning it. A micro pump 27 is fixedly connected to the end of the connecting pipe 25 close to the nozzle 26. A press switch 28 for turning the micro pump 27 on and off is fixedly connected to the top of the storage box 24. The press switch 28 is electrically connected to the micro pump 27.

[0047] The storage tank 24 provided on the track plate 13 allows the cleaning liquid to be better stored on the inner wall of the storage tank 24. The connecting pipe 25 provided on the storage tank 24 and the nozzle 26 provided on the connecting pipe 25 allow the cleaning liquid inside the storage tank 24 to be sprayed through the connecting pipe 25 and the nozzle 26. The micro pump 27 provided on the connecting pipe 25 allows the nozzle 26 to spray the cleaning liquid better. The push switch 28 provided on the storage tank 24 and the push switch 28 are electrically connected to the micro pump 27. The lifting rod 14 drives the placement plate 15 to move downward, pressing the push switch 28, turning on the micro pump 27. At the same time, the lens 161 and the nozzle 26 are aligned with each other, so that the cleaning liquid in the storage tank 24 can be better sprayed and rinsed by the nozzle 26 on the lens 161, making the pictures taken by the camera clearer. The cleaning liquid is S-530 environmentally friendly cleaning agent, which cleans dirt quickly, is easy to evaporate, and has a strong ability to disperse or dissolve dirt.

[0048] The micro pump 27 is an existing MZR-2505 micro gear pump. This micro gear pump features high precision, pulse-free operation, a compact size, and lightweight design. It can be used to precisely deliver trace amounts of liquids, including non-lubricating liquids, with a pressure differential of up to 30 bar. This compact design, configurable microcontroller, boasts a viscosity range of up to 25,000 mPas and is primarily used in process and scientific research applications requiring precise delivery of trace amounts of liquids, such as fully automatic blood typing analyzers, DNA research, fuel cells, medical equipment, bioprocessing, tubular reactors, flavors and fragrances, aerospace, and advanced chemical industry production and process treatment. It can be used for the continuous delivery and dripping of a variety of liquids, including highly corrosive liquids, various solutions, solvents, methanol, oils, lubricants, adhesives, reagents, flavors, coolants, silicone, resins, and high-viscosity liquids.

[0049] Furthermore, the auxiliary bracket for fluorescein fundus angiography examination can fix the head of the examinee, is easy to use, and is better than traditional products.

[0050] Working principle: When the auxiliary bracket for fluorescein fundus angiography examination is used, the base 1 is provided so that the support rod 2 can be better placed on the base 1, and the U-shaped shell 3 provided on the support rod 2 can be more stably placed on the support rod 2, and the moving rod 4 provided on the U-shaped shell 3 can make the moving rod 4 rotate on a fixed axis on the U-shaped shell 3, and the curved plate 5 provided on the moving rod 4 can make the head of the person being examined more conveniently placed on the curved plate 5, and the curved splint 6 provided on the curved plate 5, as the curved splint 6 rotates on a fixed axis on the curved plate 5, the two curved splints 6 can clamp and fix the head of the person being examined, and the auxiliary mechanism provided on the U-shaped shell 3 can make the two The arc-shaped splints 6 can be reciprocated toward or away from each other. The columnar rod 8 provided on the U-shaped shell 3 allows the columnar rod 8 to be lifted and reciprocated on the U-shaped shell 3, and the U-shaped rod 7 provided on the columnar rod 8 allows the U-shaped rod 7 to be placed more stably on the columnar rod 8. The adjusting block 9 provided on the U-shaped shell 3 allows the adjusting block 9 to reciprocate on a fixed axis on the U-shaped shell 3. The first rectangular groove 41 provided on the moving rod 4 and the second rectangular groove 71 provided on the U-shaped rod 7 allow the adjusting block 9 to reciprocate on a fixed axis, so that the moving rod 4 and the adjusting block 9 can better reciprocate toward or away from each other. The second return spring 42 provided on the moving rod 4 pushes the U-shaped rod 7 to move relative to each other. The back is reset and moved, through the limit plate 72 provided on the U-shaped rod 7, and the first reset spring 73 provided on the limit plate 72, accompanied by the fixed connection between the limit plate 72 and the U-shaped rod 7, so that the reset movement of the first reset spring 73 can better push the U-shaped rod 7 to move downward, through the rectangular shell 10 provided on the support rod 2, and the screw 11 provided on the rectangular shell 10, so that the screw 11 performs a fixed-axis reciprocating rotation on the rectangular shell 10, and the internal threaded sleeve 12 provided on the rectangular shell 10, along with the reciprocating rotation of the screw 11, so that the internal threaded sleeve 12 performs an axial reciprocating movement on the screw 11, through the internal threaded sleeve 12 and the inclined surface provided on the U-shaped rod 7, and the internal threaded sleeve 12 is movably connected to the U-shaped rod 7, along with the internal threaded sleeve 12 and the U The U-shaped rods 7 move toward each other, so that the internal threaded sleeve 12 can more conveniently push the U-shaped rod 7 to move upward. The above-mentioned mechanism drives the screw rod 11 to rotate back and forth on a fixed axis through the power mechanism, so that the internal threaded sleeve 12 moves axially back and forth on the screw rod 11. As the internal threaded sleeve 12 and the U-shaped rod 7 move toward each other, the internal threaded sleeve 12 better pushes the U-shaped rod 7 to move axially. Through the adjusting block 9 provided on the U-shaped shell 3, and the adjusting block 9 is movably connected to the first rectangular groove 41 and the second rectangular groove 71, as the U-shaped rod 7 moves upward, the adjusting block 9 pulls the moving rod 4 and the U-shaped rod 7 to move toward each other, and is fixedly connected to the U-shaped rod 7 through the columnar rod 8, and the columnar rod 8 moves axially upward on the U-shaped shell 3.As the curved clamping plate 6 rotates and connects to the curved plate 5, the cylindrical rod 8 pushes the two curved clamping plates 6 to move toward each other to clamp and fix the examinee's head. As the moving rod 4 drives the curved plate 5 to move axially downward, the two curved clamping plates 6 can better move toward each other, avoiding the problem of the camera having difficulty aligning with the examinee's eyes and the easy blurring of the captured image.

[0051] Furthermore, the auxiliary bracket for fluorescein fundus angiography examination can fix the head of the examinee, is easy to use, and is better than traditional products.

[0052] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A fluorescein fundus angiography examination auxiliary stent, characterized by: The apparatus comprises a base (1), support rods (2) are fixedly connected to two symmetrical positions on both sides of the base (1), a clamping mechanism for fixing the head of the person being examined is provided on the support rods (2), the clamping mechanism comprising two support rods (2) having opposite surfaces near the top fixedly connected to U-shaped shells (3), and a moving rod (4) is penetrated and limitedly slidably connected to the top center position of the U-shaped shell (3); The top of the moving rod (4) is fixedly connected to an arc-shaped plate (5) for placing the head of the examinee, and both sides of the arc-shaped plate (5) are rotatably connected to arc-shaped clamping plates (6) for clamping the head of the examinee through pins, and an auxiliary mechanism for rotating the arc-shaped clamping plates (6) toward or away from each other is provided on the U-shaped shell (3); the auxiliary mechanism includes a columnar rod (8) that is penetrated and limitedly slidably connected to the top of the U-shaped shell (3) near the edge of both sides and pushes the arc-shaped clamping plates (6) for clamping; the bottoms of the two columnar rods (8) are fixedly connected to U-shaped rods (7) for lifting and reciprocating the columnar rods (8), and the U-shaped rods (7) are far One end of the columnar rod (8) passes through the bottom of the U-shaped shell (3) and is limitedly slidably connected; the inner wall of the U-shaped shell (3) is connected to both sides of the moving rod (4) through a pin shaft to rotate with an adjustment block (9) for moving the moving rod (4) and the U-shaped rod (7) to move toward or away from each other; the moving rod (4) is provided with a first rectangular groove (41) at a symmetrical position on both sides near the bottom, and the U-shaped rod (7) is provided with an identical second rectangular groove (71) on the opposite surface near the top; the two adjustment blocks (9) are connected to the inner wall of the first rectangular groove (41) at one end near the moving rod (4), and the two adjustment blocks (9) are connected to the U-shaped rod (7) One end is movably connected to the inner wall of the second rectangular groove (71), the opposite surface of the moving rod (4) and the U-shaped rod (7) is fixedly connected to a second return spring (42) for pushing the moving rod (4) and the U-shaped rod (7) to move in opposite directions, the opposite surface of the U-shaped rod (7) near the top is fixedly connected to a limit plate (72), the upper surface of the limit plate (72) and the opposite surface of the U-shaped shell (3) are fixedly connected to a first return spring (73) for pushing the U-shaped rod (7) to move downward; the support rod (2) is also provided with a transmission mechanism for pushing the moving rod (4) and the U-shaped rod (7) to move in opposite directions, and the transmission mechanism includes two support rods. A rectangular shell (10) is fixedly connected on the opposite side of the rod (2) and below the U-shaped shell (3), and screw rods (11) are passed through and limitedly rotated on both sides of the rectangular shell (10), one end of the screw rod (11) passes through the support rod (2) and is driven by a power mechanism to rotate back and forth, and an internal threaded sleeve (12) for horizontal reciprocating movement is connected to the upper limit rotation of the screw rod (11), an inclined surface is provided on the top of the internal threaded sleeve (12), and inclined surfaces matching the internal threaded sleeve (12) are provided on both sides of the bottom of the U-shaped rod (7), and the internal threaded sleeve (12) is movably connected to the U-shaped rod (7) and pushes the U-shaped rod (7) to move upward; The base (1) is fixedly connected to a track plate (13) at one end away from the support rod (2) near the edge center position, the inner wall of the track plate (13) is limitedly slidably connected to a lifting rod (14) for lifting and reciprocating motion, the top of the lifting rod (14) is fixedly connected to a placement plate (15), the upper surface of the placement plate (15) is fixedly connected to an imaging device body (16) for photographing the eyes of the examinee, and a lens (161) is fixedly connected to the imaging device body (16) on the side close to the moving rod (4); the rectangular shell (10) is provided with an adjustment mechanism for making the track plate (13) lift and reciprocate, the adjustment mechanism includes an elliptical hole (101) on the end of the rectangular shell (10) away from the track plate (13), and an end of the internal threaded sleeve (12) close to the elliptical hole (101) passes through the elliptical hole (101) through a pin shaft and is rotatably connected to a Y-shaped rod (18), away from the track plate (13). A rotating rod (19) is passed through and limitedly rotated on the support rod (2) on one side of the internal threaded sleeve (12) near the bottom position, and is connected to the rotating rod (19). The rotating rod (19) is fixedly connected to a fixed plate (20) that slides on the inner wall of the Y-shaped rod (18) at one end thereof. An adjusting plate (21) is fixedly connected to the side of the rectangular shell (10) away from the fixed plate (20). The adjusting plate (21) is fixedly connected to a first connecting seat (201) at one end thereof away from the rotating rod (19). The first connecting seat (201) is rotatably connected to a second connecting seat (202) at one end thereof away from the adjusting plate (21) via a pin shaft. The second connecting seat (202) is fixedly connected to an inserting rod (22) at one end thereof away from the first connecting seat (201). The inserting rod (22) is limitedly slidably connected to a sleeve rod (23) at one end thereof away from the second connecting seat (202). The sleeve rod (23) is fixedly connected to the lifting rod (14) at one end thereof away from the inserting rod (22).

2. The auxiliary stent for fluorescein fundus angiography examination according to claim 1, characterized in that: The track plate (13) is provided with a cleaning mechanism for cleaning the lens (161), the cleaning mechanism comprising a storage box (24) for storing a cleaning liquid, which is provided on the track plate (13) near the top and on the same side as the lens (161), a connecting pipe (25) is passed through and fixedly connected to the side of the storage box (24) away from the track plate (13), and a nozzle (26) for spraying the cleaning liquid onto the lens (161) for cleaning is fixedly connected to the end of the connecting pipe (25) away from the storage box (24).

3. The auxiliary stent for fluorescein fundus angiography examination according to claim 2, characterized in that: A micro pump (27) is fixedly connected to one end of the connecting pipe (25) near the nozzle (26), and a push switch (28) for turning the micro pump (27) on and off is fixedly connected to the top of the storage box (24), and the push switch (28) is electrically connected to the micro pump (27).

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