Examination auxiliary support for fluorescein fundus angiography

Abstract

The invention discloses a fluorescein fundus angiography examination auxiliary support which comprises a base, supporting rods are fixedly connected to the symmetrical positions of the two sides of the base, and clamping mechanisms for fixing the head of an examined person are arranged on the supporting rods. The clamping mechanism comprises two supporting rods, the opposite faces, close to the tops, of the two supporting rods are fixedly connected with U-shaped shells, the center positions of the tops of the U-shaped shells are connected with moving rods in a penetrating and limiting sliding mode, and the tops of the moving rods are fixedly connected with an arc-shaped plate for placing the head of a detected person; the two sides of the arc-shaped plate are rotationally connected with arc-shaped clamping plates for clamping the head of a detected person through pin shafts, and the U-shaped shell is provided with an auxiliary mechanism enabling the arc-shaped clamping plates to rotate in the opposite directions or in the opposite directions. The auxiliary mechanism comprises cylindrical rods which penetrate through the positions, close to the edges of the two sides, of the top of the U-shaped shell and are in limited sliding connection with the cylindrical rods for pushing the arc-shaped 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 one of the most commonly used and important examination methods in contemporary ophthalmology for diagnosing fundus diseases. It is of great significance for the diagnosis, differential diagnosis, treatment selection and prognosis of fundus diseases. FFA is a technology that uses a camera equipped with a special filter combination to record the dynamic changes of fundus conditions through the fluorescence emitted by intravenous injection of fluorescein when it circulates in the blood of the eye. It helps in the diagnosis of diseases. For example, when vision is damaged by brain tumors or brain trauma, or when glaucoma or optic nerve atrophy occurs, different forms of visual field defects will appear. This can be used to determine the location of the tumor or trauma, providing a basis for further treatment. It helps in the differential diagnosis of various diseases with different visual field defects and ranges.

[0003] When fluorescein fundus angiography is performed on a person under examination, it is difficult to fix the person's head with the existing auxiliary bracket, so that the camera is difficult 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 purpose, the present invention provides the following technical solutions: an auxiliary bracket for fluorescein fundus angiography examination, comprising a base, support rods are fixedly connected to the base at symmetrical positions on both sides, the support rods are provided with a clamping mechanism for fixing the head of the examinee, the clamping mechanism comprises a U-shaped shell 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 connected with a limited sliding connection, an arc plate for placing the head of the examinee is fixedly connected to the top of the moving rod, both sides of the arc plate are rotatably connected with arc clamping plates for clamping the head of the examinee through pins, and the U-shaped shell is provided with an auxiliary mechanism for rotating the arc clamping plates toward or away from each other.

[0007] Preferably, the auxiliary mechanism includes a top of the U-shaped shell that is penetrated and slidably connected near the edges of both sides with a columnar rod that pushes the arc-shaped clamp for clamping, the bottoms of the two columnar rods are fixedly connected with 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 slidably connected, and the inner wall of the U-shaped shell near both sides of the moving rod is rotatably connected with adjustment blocks through pins that enable the moving rod and the U-shaped rod to move toward or away from each other.

[0008] Preferably, the moving rod is provided with a first rectangular groove at two symmetrical positions on both sides near the bottom, and the opposite surfaces of the U-shaped rod near the top are provided with the same second rectangular groove, 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, the moving rod and the opposite surface of the U-shaped rod are fixedly connected with a second return spring that pushes the moving rod and the U-shaped rod to move away from each other, the opposite surface of the U-shaped rod near the top is fixedly connected with a limit plate, and the upper surface of the limit plate and the opposite surface of the U-shaped shell are fixedly connected with a first return spring that pushes the U-shaped rod to move downward.

[0009] Preferably, the support rod is also provided with a transmission mechanism for pushing the movable rod and the U-shaped rod to move toward each other, the transmission mechanism includes a rectangular shell fixedly connected on opposite surfaces of the two support rods and located below the U-shaped shell, both sides of the rectangular shell are penetrated by and connected with screws for limited rotation, one end of the screw penetrates the support rod and is driven by a power mechanism for reciprocating rotation, the upper limit rotation connection of the screw is connected with an internal threaded sleeve for horizontal reciprocating movement, the top of the internal threaded sleeve is provided with an inclined surface, and both sides of the bottom of the U-shaped rod are provided with inclined surfaces compatible with the internal threaded sleeve, 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 limitedly slidably connected to a lifting rod for lifting and reciprocating motion, and 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 an 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 be lifted and reciprocated, the adjustment mechanism including an elliptical hole groove on the end of the rectangular shell away from the track plate, an 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, a supporting rod on the side away from the internal threaded sleeve is penetrated by a rotating rod near the bottom position and is rotatably connected thereto, and the end of the rotating rod close to the Y-shaped rod is fixedly connected to a fixing 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 at one end away from the rotating rod, the first connecting seat is rotatably connected to a second connecting seat at one end away from the adjusting plate via a pin shaft, the second connecting seat is fixedly connected to an insertion rod at one end away from the first connecting seat, the insertion rod is limitedly slidably connected to a sleeve rod at one end away from the second connecting seat, and the sleeve rod is fixedly connected to a lifting rod at one end away from the insertion rod.

[0013] Preferably, the track plate is provided with a cleaning mechanism for cleaning the lens, the cleaning mechanism includes a storage box for storing cleaning liquid, which is arranged on the same side of the track plate as the lens near the top, a connecting pipe penetrates and is fixedly connected to the side of the storage box away from the track plate, an 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, an end of the connecting pipe close to the nozzle is fixedly connected to a micro pump, a push switch for turning the micro pump on and off is fixedly connected to the top of the storage box, 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: The power mechanism drives the screw to rotate reciprocatingly on a fixed axis, so that the internal threaded sleeve performs axial reciprocating movement on the screw, and the internal threaded sleeve and the U-shaped rod move toward each other, so that the internal threaded sleeve can better push the U-shaped rod to move axially, and an adjusting block is provided on the U-shaped shell, and the adjusting block is movably connected to the first rectangular slot and the second rectangular slot. With the upward movement of the U-shaped rod, 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, and the column rod moves axially upward on the U-shaped shell, and the arc clamping plate is rotatably connected on the arc plate, so that the column rod pushes the two arc clamping plates to move toward each other to clamp and fix the head of the examinee, 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 examinee and the captured picture is easily blurred.

[0015] The inner thread sleeve is used to reciprocate on the screw rod, so that the Y-shaped rod drives the rotating rod to rotate on the support rod, and the adjusting plate arranged on the rotating rod reciprocates on the fixed axis on the support rod, so that the rotating rod drives the adjusting plate to swing back and forth on the fixed axis. Through the first connecting seat arranged on the adjusting plate and the second connecting seat arranged on the first connecting seat, the first connecting seat and the second connecting seat are rotated and connected by the pin shaft, so that the insertion rod and the sleeve rod can better drive the lifting rod to lift and reciprocate, and can push the U-shaped rod and the moving rod to move toward each other through the inner thread sleeve, so that the two arc clamps clamp and fix the head of the examinee, and at the same time, the inner thread sleeve pushes the Y-shaped rod to drive the rotating rod to rotate on the fixed axis, and the adjusting plate swings upward on the rotating rod on the fixed axis, so that the insertion rod and the sleeve rod drive the lifting rod to move upward axially, so that the lens on the imaging equipment body can be stably aligned with the examinee to take eye photos.

[0016] The 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 eyes of the person, and the picture taken by the camera is easily blurred, thus leading to inaccurate test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a rear view schematic diagram of the three-dimensional structure of the present invention; 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; Figure 4 It is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention; Figure 5 For the present invention Figure 3 Schematic diagram of the structure at A in the middle; Figure 6 For the present invention Figure 2 Schematic diagram of the structure at B in the middle; Figure 7 For the present invention Figure 1 Schematic diagram of the structure at C in the middle; Figure 8 It is a schematic diagram of the three-dimensional structure of the arc plate and the arc clamping plate of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the U-shaped rod structure of the present invention.

[0018] 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, push switch. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention. Embodiment 1

[0020] See also Figures 1 to 9 The present invention provides a technical solution: an auxiliary stent for fluorescein fundus angiography examination. It comprises a base 1, and support rods 2 are fixedly connected at symmetrical positions on both sides of the base 1, and a clamping mechanism for fixing the head of the examinee is provided on the support rods 2, and the clamping mechanism comprises 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 position of the U-shaped shell 3, and an arc-shaped plate 5 for placing the head of the examinee is fixedly connected to the top of the moving rod 4, and arc-shaped clamping plates 6 for clamping the head of the examinee are rotatably connected to both sides of the arc-shaped plate 5 through pin shafts, and an auxiliary mechanism for rotating the arc-shaped clamping plates 6 towards or away from each other is provided on the U-shaped shell 3; The auxiliary mechanism includes a columnar rod 8 that penetrates and is limitedly slidably connected to the top of the U-shaped shell 3 near the edge positions on both sides thereof, and is used to push the arc-shaped clamping plate 6 for clamping; the bottoms of the two columnar rods 8 are fixedly connected to a U-shaped rod 7 that enables the columnar rod 8 to move up and down and reciprocate; one 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, which enables 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 first rectangular grooves 41 at symmetrical positions on both sides near the bottom, and the opposite surfaces of the U-shaped rod 7 near the top are provided with identical second rectangular grooves 71, and two adjusting blocks 9 are movably connected to limit positions on the inner wall of the first rectangular groove 41 near one end of the moving rod 4, and two adjusting blocks 9 are movably connected to limit positions on the inner wall of the second rectangular groove 71 near one end of the U-shaped rod 7, and the opposite surfaces of the moving rod 4 and the U-shaped rod 7 are fixedly connected with a second return spring 42 that pushes the moving rod 4 and the U-shaped rod 7 to move backwards, and the opposite surfaces of the U-shaped rod 7 near the top are fixedly connected with a limit plate 72, and the upper surface of the limit plate 72 and the opposite surface of the U-shaped shell 3 are fixedly connected with a first return spring 73 that pushes the U-shaped rod 7 to move downward; 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 located below the U-shaped shell 3. Screws 11 are passed through and connected to the two sides of the rectangular shell 10 for limited rotation. One end of the screw 11 passes through the support rod 2 and is driven by the power mechanism to reciprocate. The screw 11 is connected to an internal threaded sleeve 12 for horizontal reciprocating movement in a limited rotation. 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. The internal threaded sleeve 12 is movably connected to the U-shaped rod 7 and pushes the U-shaped rod 7 to move upward.

[0021] 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 be more stably placed on the support rod 2, and the moving rod 4 provided on the U-shaped shell 3 can be rotated 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 under examination more conveniently placed on the curved plate 5, and the curved clamping plate 6 provided on the curved plate 5 can be rotated on a fixed axis on the curved plate 5 by the two curved clamping plates 6 to clamp and fix the head of the person under examination; Through the auxiliary mechanism provided on the U-shaped shell 3, the two arc-shaped clamping plates 6 can be reciprocated toward or away from each other, through the columnar rod 8 provided on the U-shaped shell 3, the columnar rod 8 is lifted and reciprocated on the U-shaped shell 3, and the U-shaped rod 7 provided on the columnar rod 8 makes the U-shaped rod 7 more stably placed on the columnar rod 8, through the adjustment block 9 provided on the U-shaped shell 3, the adjustment block 9 is reciprocated on the U-shaped shell 3 with a fixed axis, and through the first rectangular groove 41 provided on the moving rod 4, and the first rectangular groove 42 provided on the U-shaped rod 7 The second rectangular groove 71, along with the fixed axis reciprocating rotation of the adjusting block 9, enables the moving rod 4 and the adjusting block 9 to better reciprocate toward or away from each other, and through the second return spring 42 provided on the moving rod 4, the second return spring 42 pushes the U-shaped rod 7 to return and move away from each other, and through the limit plate 72 provided on the U-shaped rod 7, and the first return spring 73 provided on the limit plate 72, along with the fixed connection between the limit plate 72 and the U-shaped rod 7, the return movement of the first return spring 73 can better push the U-shaped rod 7 to move downward; By means of 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 reciprocate on the rectangular shell 10 along with the fixed axis, and the internal threaded sleeve 12 provided on the rectangular shell 10 is made to reciprocate along with the screw 11, so that the internal threaded sleeve 12 is made to reciprocate axially on the screw 11, and by means of the inclined surfaces provided on the internal threaded sleeve 12 and the U-shaped rod 7, and the internal threaded sleeve 12 is movably connected with the U-shaped rod 7, the internal threaded sleeve 12 is made to more conveniently push the U-shaped rod 7 to move upward along with the internal threaded sleeve 12 and the U-shaped rod 7 moving toward each other.

[0022] The above mechanism drives the screw rod 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 rod 11, and the internal threaded sleeve 12 and the U-shaped rod 7 move toward each other, so that the internal threaded sleeve 12 better pushes the U-shaped rod 7 to move axially, through the adjustment block 9 set on the U-shaped shell 3, and the adjustment block 9 is movably connected with the first rectangular groove 41 and the second rectangular groove 71, and the upward movement of the U-shaped rod 7 makes the adjustment block 9 pull the moving rod 4 and the U-shaped rod 7 to move toward each other, and the columnar rod 8 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, and the arc clamping plate 6 is rotatably connected on the arc plate 5, so that 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, and the moving rod 4 drives the arc plate 5 to move downward axially, so that the two arc clamping plates 6 can better move toward each other, avoiding the problem that the camera is difficult to align with the eyes of the examinee and the shooting picture is easily blurred. Embodiment 2

[0023] On the basis of the first embodiment, further: 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, and a lifting rod 14 for lifting and reciprocating motion is limitedly slidably connected to the inner wall of the track plate 13, and a placement plate 15 is fixedly connected to the top of the lifting rod 14, and a radiographic device body 16 for taking pictures of the eyes of the examinee is fixedly connected to the upper surface of the placement plate 15, and a lens 161 is fixedly connected to the side of the radiographic device body 16 near the moving rod 4; The rectangular housing 10 is provided with an adjustment mechanism for enabling the track plate 13 to move up and down and reciprocate. The adjustment mechanism includes an elliptical hole groove 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 groove 101 passes through the elliptical hole groove 101 through a pin shaft and is rotatably connected to a Y-shaped rod 18, and a rotating rod 19 is passed through and limitedly rotatably connected to the support rod 2 near the bottom position on the side away from the internal threaded sleeve 12, and 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; An adjusting plate 21 is fixedly connected to one side of the rectangular shell 10 away from the fixed plate 20, and an end of the adjusting plate 21 away from the rotating rod 19 is fixedly connected to a first connecting seat 201, and an end of the first connecting seat 201 away from the adjusting plate 21 is rotatably connected to a second connecting seat 202 via a pin shaft, and an end of the second connecting seat 202 away from the first connecting seat 201 is fixedly connected to an insert rod 22, and an end of the insert rod 22 away from the second connecting seat 202 is limitedly slidably connected to a sleeve rod 23, and an end of the sleeve rod 23 away from the insert rod 22 is fixedly connected to the lifting rod 14.

[0024] The track plate 13 provided on the base 1 allows the lifting rod 14 to perform lifting and reciprocating movements 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, along with the Y-shaped rod 18 and the elliptical hole 101 being movably connected, the Y-shaped rod 18 is allowed to perform fixed-axis rotation on the internal threaded sleeve 12, and the rotating rod 19 provided on the support rod 2 is allowed to perform fixed-axis rotation on the support rod 2, and the fixed plate 20 provided on the rotating rod 19, along with As the internal threaded sleeve 12 performs axial reciprocating movement, the Y-shaped rod 18 drives the fixed plate 20 and the rotating rod 19 to perform fixed-axis rotation on the support rod 2, and an adjusting plate 21 is provided on the rotating rod 19, so that the adjusting plate 21 can be placed more stably on the rotating rod 19, and the first connecting seat 201 provided on the adjusting plate 21 allows the second connecting seat 202 to perform fixed-axis rotation 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.

[0025] The above-mentioned imaging device body 16, fluorescein fundus angiography is to inject fluorescein contrast agent from the elbow vein, and use a specific filter and fundus camera to take fundus photos. It can clearly show the fine structure of microcirculation, even to the level of capillaries. It can also fully and systematically explain the normal or abnormal state of living body circulation in a dynamic way, and can record it by continuous and rapid photography. In the above structure, the internal thread sleeve 12 reciprocates 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 arranged on the rotating rod 19, along with the rotating rod 19 reciprocating on the support rod 2, so that the rotating rod 19 drives the adjusting plate 21 to swing back and forth on the fixed axis, through the first connecting seat 201 arranged on the adjusting plate 21, and the second connecting seat 202 arranged on the first connecting seat 201, along with the first connecting seat 201 and the second connecting seat 202 rotating and connecting through the pin shaft, so that the plug 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, and 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 aimed at the examinee to take eye photos. Embodiment 3

[0026] On the basis of the second embodiment, further: A cleaning mechanism for cleaning the lens 161 is provided on the track plate 13, and the cleaning mechanism includes a storage box 24 for storing cleaning liquid, which is arranged on the same side of the track plate 13 as the lens 161 near the top position. A connecting pipe 25 penetrates and is fixedly connected to the side of the storage box 24 away from the track plate 13. An end of the connecting pipe 25 away from the storage box 24 is fixedly connected to a nozzle 26 for spraying the cleaning liquid onto the lens 161 for cleaning. A micro pump 27 is fixedly connected to the end of the connecting pipe 25 close to the nozzle 26. 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.

[0027] By means of the storage box 24 provided on the track plate 13, the cleaning liquid can be better stored on the inner wall of the storage box 24. By means of the connecting pipe 25 provided on the storage box 24 and the nozzle 26 provided on the connecting pipe 25, the cleaning liquid inside the storage box 24 is sprayed through the connecting pipe 25 and the nozzle 26. By means of the micro pump 27 provided on the connecting pipe 25, the nozzle 26 can better spray the cleaning liquid. By means of the push switch 28 provided on the storage box 24, and the push switch 28 and the micro pump 27 are electrically connected, the lifting rod 14 drives the placement plate 15 to move downward to press the push switch 28, so that the micro pump 27 is in an open state. At the same time, the lens 161 and the nozzle 26 are on the same horizontal line, so that the cleaning liquid in the storage box 24 can be better sprayed and rinsed on the lens 161 through the nozzle 26, so that the pictures taken by the camera are clearer. The cleaning liquid is S-530 environmentally friendly cleaning agent, which cleans dirt quickly, is easy to volatilize, and has a strong ability to disperse or dissolve and remove dirt.

[0028] The above-mentioned micro pump 27 is an existing structure mzr-2505 micro gear pump, which has high precision, no pulse, small size and light weight. It can be used to accurately transport trace liquids, including non-lubricating liquids, with a pressure difference of up to 30bar. The compact design and configurable microcontroller product has a viscosity range of up to 25,000mPas. It is mainly used in process and scientific research units that need to accurately transport trace liquids, such as: fully automatic blood type analyzers, DNA research, fuel cells, medical equipment, biotechnology, tubular reactors, flavors and fragrances, aerospace, advanced chemical industry production and process treatment. It can be used for continuous delivery and dripping of a variety of liquids including highly corrosive liquids, various solutions, solvents, methanol, oil, lubricants, adhesives, reagents, fragrances, coolants, silica gel, resins, high-viscosity liquids, etc.

[0029] Furthermore, the auxiliary bracket for fluorescein fundus angiography examination can fix the head of the person being examined, is easy to use, and is better than traditional products.

[0030] 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 placed more stably on the support rod 2, and the moving rod 4 provided on the U-shaped shell 3 can be made to rotate on a fixed axis on the U-shaped shell 3, and the arc plate 5 provided on the moving rod 4 can make the head of the examinee more conveniently placed on the arc plate 5, and the arc clamping plate 6 provided on the arc plate 5, along with the arc clamping plate 6 rotating on the arc plate 5, can make the two arc clamping plates 6 clamp and fix the head of the examinee, and the auxiliary mechanism provided on the U-shaped shell 3 can make the two arc clamping plates The arc-shaped clamping plates 6 can move back and forth 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 allows the second return spring 42 to push the U-shaped rod 7 to move back and forth. 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, accompanied by 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, accompanied by the internal threaded sleeve 12 and the U The U-shaped rod 7 moves toward each other, so that the internal threaded sleeve 12 can more conveniently push the U-shaped rod 7 to move upward. The above mechanism drives the screw rod 11 to reciprocate on a fixed axis through the power mechanism, so that the internal threaded sleeve 12 performs axial reciprocating movement on the screw rod 11, and the internal threaded sleeve 12 and the U-shaped rod 7 move toward each other, so that the internal threaded sleeve 12 better pushes the U-shaped rod 7 to move axially, through the adjustment block 9 provided on the U-shaped shell 3, and the adjustment block 9 is movably connected with the first rectangular groove 41 and the second rectangular groove 71, with the upward movement of the U-shaped rod 7, the adjustment 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 axial upward 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 person under examination. As the moving rod 4 drives the arc plate 5 to move axially downward, the two arc clamping plates 6 can move toward each other better, avoiding the problem that the camera is difficult to align with the eyes of the person under examination and the picture is easily blurred.

[0031] Furthermore, the auxiliary bracket for fluorescein fundus angiography examination can fix the head of the person being examined, is easy to use, and is better than traditional products.

[0032] 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 the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0033] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluorescein fundus angiography examination auxiliary stent, characterized in that: The invention 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 under examination is provided on the support rods (2), the clamping mechanism comprises two support rods (2) having opposite surfaces near the top fixedly connected to a U-shaped shell (3), and a moving rod (4) is penetrated through the top center position of the U-shaped shell (3) and is limitedly slidably connected thereto.

2. The auxiliary stent for fluorescein fundus angiography examination according to claim 1, characterized in that: The top of the moving rod (4) is fixedly connected to an arc-shaped plate (5) for placing the head of the person under examination, and both sides of the arc-shaped plate (5) are rotatably connected to arc-shaped clamping plates (6) for clamping the head of the person under examination via pins, and the U-shaped housing (3) is provided with an auxiliary mechanism for rotating the arc-shaped clamping plates (6) towards or away from each other.

3. The auxiliary stent for fluorescein fundus angiography examination according to claim 2, characterized in that: The auxiliary mechanism comprises a columnar rod (8) which penetrates through the top of the U-shaped housing (3) near the edges on both sides and is limitedly slidably connected to push the arc-shaped clamping plate (6) for clamping.

4. The auxiliary stent for fluorescein fundus angiography examination according to claim 3, characterized in that: The bottoms of the two columnar rods (8) are fixedly connected with a U-shaped rod (7) which enables the columnar rods (8) to move up and down and back and forth. One end of the U-shaped rod (7) away from the columnar rod (8) passes through the bottom of the U-shaped housing (3) and is connected in a limited sliding manner.

5. The auxiliary stent for fluorescein fundus angiography examination according to claim 4, characterized in that: Both sides of the inner wall of the U-shaped housing (3) near the moving rod (4) are rotatably connected to adjustment blocks (9) through pins, which enable the moving rod (4) and the U-shaped rod (7) to move toward or away from each other; first rectangular grooves (41) are provided at symmetrical positions on both sides near the bottom of the moving rod (4); and the opposite surfaces of the U-shaped rod (7) near the top are provided with identical second rectangular grooves (71); one end of the two adjustment blocks (9) near the moving rod (4) is movably connected to the inner wall of the first rectangular groove (41); and one end of the two adjustment blocks (9) near the U-shaped rod (7) is fixed to the inner wall of the second rectangular groove (71). The inner wall of the U-shaped housing (71) is limit-movably connected, the moving rod (4) and the U-shaped rod (7) are fixedly connected to the opposite surface of the moving rod (4) and the U-shaped rod (7) with 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 housing (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 The invention relates to a rectangular shell (10) fixedly connected to the two support rods (2) on opposite sides and located below the U-shaped shell (3); screw rods (11) are passed through and are limitedly rotatably connected 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 reciprocate; the screw rod (11) is limitedly rotatably connected to an internal thread sleeve (12) for horizontal reciprocating movement; the top of the internal thread 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 matching the internal thread sleeve (12); the internal thread sleeve (12) and the U-shaped rod (7) are connected to each other. (7) is movably connected and pushes the U-shaped rod (7) to move upward; 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, the inner wall of the track plate (13) is limitedly slidably connected to a lifting rod (14) that performs 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 one side close to the moving rod (4).

6. The auxiliary bracket for fluorescein fundus angiography examination according to claim 5, characterized in that: The rectangular housing (10) is provided with an adjustment mechanism for enabling the track plate (13) to move up and down and reciprocate, the adjustment mechanism comprising an elliptical hole (101) formed on one end of the rectangular housing (10) away from the track plate (13); 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); a rotating rod (19) passes through the supporting rod (2) at a position close to the bottom and is rotatably connected thereto; an end of the rotating rod (19) close to the Y-shaped rod (18) is fixedly connected to a fixing plate (20) that slides on the inner wall of the Y-shaped rod (18); an adjustment plate (21) is fixedly connected to the side of the rectangular housing (10) away from the fixing plate (20); the adjustment plate (21) is away from the rotating rod (19) and is fixedly connected to the inner wall of the Y-shaped rod (18). One end of the rod (19) is fixedly connected to a first connection seat (201); one end of the first connection seat (201) away from the adjustment plate (21) is rotatably connected to a second connection seat (202) via a pin shaft; one end of the second connection seat (202) away from the first connection seat (201) is fixedly connected to an insertion rod (22); a cleaning mechanism for cleaning the lens (161) is provided on the track plate (13); the cleaning mechanism comprises a storage box (24) for storing cleaning liquid, which is arranged on the track plate (13) near the top and on the same side as the lens (161); a connecting pipe (25) is penetrated and fixedly connected to a side of the storage box (24) away from the track plate (13); and a nozzle (26) for spraying cleaning liquid onto the lens (161) and cleaning the lens is fixedly connected to the end of the connection pipe (25) away from the storage box (24).

7. The auxiliary stent for fluorescein fundus angiography examination according to claim 6, characterized in that: One end of the insertion rod (22) away from the second connection seat (202) is limitedly slidably connected to a sleeve rod (23), and one end of the sleeve rod (23) away from the insertion rod (22) is fixedly connected to the lifting rod (14).

8. The auxiliary bracket for fluorescein fundus angiography examination according to claim 6, characterized in that: A micro pump (27) is fixedly connected to one end of the connecting tube (25) close to 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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