Intelligent fundus angiography auxiliary device capable of automatically adjusting height
Through the fundus imaging auxiliary device that intelligently adjusts the height of the intelligent and automatic height, using hydraulic push rods, electric push rods and stepper motors and other technologies, the problem of manual adjustment of the support rod height in the existing technology is solved, improving the inspection efficiency and ensuring the comfortable experience of the patient. .
Patent Information
- Application Number
- CN202411401262.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2024-12-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The height of the support rod of the existing fundus imaging assistive device needs to be manually adjusted, resulting in repeated adjustments between different patients, wasting time for medical staff, and the patient may have a head upward or arched back due to height differences.
Design an intelligent and automatic height adjustment fundus imaging auxiliary device, using hydraulic push rods, electric push rods, stepper motors and pressure sensors, and the support rod height and pallet position are monitored and adjusted in real time through the PLC controller to ensure the patient's comfort status. And hold the head through the airbag.
Automatic adjustment of support rod height is achieved, reducing operating time of medical staff, improving inspection efficiency, ensuring the patient's comfortable experience, and avoiding discomfort caused by height differences.
Smart Images
Figure CN119097272A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of medical devices, and in particular relates to an intelligent and automatic height-adjustable fundus angiography auxiliary device. Background Art
[0002] Fundus angiography, whose full name is fundus angiography, is an ophthalmic examination method. The main goal of fundus angiography is to observe and evaluate the fundus tissue structure, check whether there are diseases of the retina and choroid, and clarify the nature and extent of the disease. Through this examination, doctors can visually observe the filling and circulation of fundus blood vessels, so as to determine whether there are problems such as fundus vascular stenosis and retinal leakage, and then evaluate the health of the retina and choroid and the severity of the disease. Fundus angiography plays an irreplaceable role in ophthalmic diagnosis and treatment. It can accurately diagnose a variety of eye diseases such as retinal lesions, macular lesions, choroidal diseases, etc., and provide important basis for subsequent treatment plans. Before fundus angiography, medical staff use a support rod to support and adjust the position of the human head to ensure that the patient can remain comfortable during a long examination time and that the patient's eyes are facing the fundus angiography device. In the prior art, the height adjustment of the support rod is manually adjusted by medical staff. The examinees may be children or adults, tall or short, which causes medical staff to waste a lot of time on adjusting the height of the support rod to a suitable height. In addition, during the examination, the heights of patients vary greatly. Shorter patients may need to stand or stretch their heads upward during the examination; taller patients may need to arch their backs, which makes the patients extremely uncomfortable during fundus angiography. In summary, the problems existing in the prior art fundus angiography auxiliary device are as follows: The prior art fundus angiography auxiliary device completely relies on manual adjustment of the support rod height, which repeatedly switches between patients of different heights, wasting medical staff time and reducing examination efficiency. In the prior art fundus angiography auxiliary device, after the patient's head is adjusted to different heights along with the support rod, the patient's body will be in a state of stretching the head upward or hunching the back due to the height, causing discomfort to the patient during the examination; Therefore, the present invention provides an intelligent and automatic height-adjustable fundus angiography auxiliary device to solve the problems existing in the fundus angiography auxiliary devices in the prior art. Summary of the invention
[0003] In order to solve the defects of the prior art fundus angiography auxiliary device, the present invention is implemented by the following technical scheme: an intelligent and automatic height-adjustable fundus angiography auxiliary device, comprising: a base, a fundus angiography instrument; The upper end of the base is symmetrically provided with a square plate with a limit groove in the middle connected to the support plate, and the middle of the base is provided with a hydraulic push rod connected to the lower end of the support plate; An electric push rod is arranged on one side of the upper part of the support plate, and a seat is arranged on the other side; a square hollow sleeve is arranged on the output shaft of the electric push rod, the lower part of the square hollow sleeve is a square cavity, a through groove is arranged on the upper end for slidingly installing the support rod, and a slide groove connecting the locking member is symmetrically provided at the upper end of the square hollow sleeve; the locking member comprises a first lock member and a second lock member; the first lock member is an annular plate, an electromagnet is arranged at the front end of the annular plate, a flat thread groove is arranged on the inner wall of the annular plate, a slider first is arranged at the lower end of the annular plate to be inserted into the slide groove, and an elastic element is arranged on the slider first to connect the slide groove wall; the second lock member is an annular plate, an electromagnet is arranged at the front end of the annular plate, and a flat thread groove is arranged on the inner wall of the annular plate; a slider second is arranged at the lower end of the annular plate to be inserted into the slide groove, and an elastic element is arranged on the slider second to connect the slide groove wall; The support rod is a flat threaded screw, with protrusions on both sides of the flat threaded screw, a support plate on the upper end of the support rod, a square groove starting from the middle of the support plate, symmetrically arranged fixing elements in the square groove, a stepper motor on one side of the square groove, and an elastic element on the lower end of the support rod connected to a square hollow sleeve; the output shaft of the stepper motor extends into the square groove, the output shaft of the stepper motor is a threaded rod, the threads on both sides of the threaded rod are in opposite directions, and the fixing elements are symmetrically arranged on the threaded rod; the fixing element includes a clamping plate, the clamping plate is a trapezoidal plate, a slider is arranged at the lower end of the trapezoidal plate, a threaded hole is provided on the slider to connect the output shaft of the stepper motor, a universal ball groove is provided on the front inclined surface of the trapezoidal plate to connect the airbag, an air pump is provided on one side of the trapezoidal plate, and the air pump is connected to the airbag through a catheter; A pressure sensor is arranged on the seat, and a PLC controller is arranged at the rear of the seat; the PLC controller is connected with the pressure sensor, the hydraulic push rod, the electric push rod, the stepping motor and the fundus angiography device through a circuit; Furthermore, a square hollow sleeve is arranged on the output shaft of the electric push rod, the lower part of the square hollow sleeve is a square cavity, a through slot is arranged on the upper end to slide and install the support rod, and a clamping slot is symmetrically arranged on both sides of the through slot, and the protrusions on both sides of the support rod are slidably clamped in the clamping slot to limit the rotation of the support rod; Furthermore, a slide groove is symmetrically provided at the upper end of the square hollow sleeve, and a freely sliding lock piece is arranged in the slide groove; the lock piece includes a lock piece 1 and a lock piece 2, and the lock piece 1 and the lock piece 2 are both annular plates with an electromagnet arranged at the front end, and a flat thread groove is arranged on the inner wall of the annular plate, and a slider 1 and a slider 2 are respectively arranged at the lower end of the annular plate to be clamped in the slide groove, and elastic elements are arranged on the slider 1 and the slider 2 to respectively connect the slide groove walls on both sides; the electromagnet works to make the lock piece 1 and the lock piece 2 move toward each other in the slide groove to fit and press the support rod, and the flat thread on the support rod is clamped in the flat thread groove on the lock piece to limit the up and down sliding of the support rod, and the support rod is locked in cooperation with the clamping groove on the square hollow sleeve; Furthermore, the support rod is a flat-threaded screw, protrusions are arranged on both sides of the flat-threaded screw, a support plate is arranged at the upper end of the support rod, a square groove starts in the middle of the support plate, fixing elements are symmetrically arranged in the square groove, a stepping motor is arranged on one side of the square groove, and an elastic element is arranged at the lower end of the support rod to connect the square hollow sleeve; Furthermore, a square groove is provided in the middle of the support plate, and fixed elements are symmetrically arranged in the square groove, and a stepper motor is arranged on one side of the square groove; the output shaft of the stepper motor extends into the square groove, and a threaded rod is provided on the output shaft of the stepper motor, and the threads on both sides of the threaded rod rotate in opposite directions, and fixed elements are symmetrically arranged on the threaded rod, and by controlling the forward and reverse rotation of the stepper motor, the fixed elements on both sides are driven to synchronously approach or move away in the square groove, and the symmetrically arranged fixed elements are controlled to clamp and relax the human head; Further, the fixing element includes a clamping plate, which is a trapezoidal plate, a slider is arranged at the lower end of the trapezoidal plate, a threaded hole is provided on the slider to connect the output shaft of the stepper motor, a universal ball groove is provided on the front inclined surface of the trapezoidal plate to connect the airbag, an air pump is arranged on one side of the trapezoidal plate, the air pump is connected to the airbag through a catheter, an electromagnet is arranged at the front end of the airbag, and the airbags on both sides are fitted to form a circular airbag ringed on the human neck by controlling the electromagnet on the airbag to work, and after the air pump inflates the airbag, the airbag expands to support the human head; Furthermore, the PLC controller is connected to the pressure sensor, the hydraulic push rod, the electric push rod, the stepping motor and the fundus angiography device through a circuit.
[0004] The beneficial effects of the present invention are: The invention designs an intelligent and automatically height-adjustable fundus angiography auxiliary device, which is provided with a base and a fundus angiography instrument. A hydraulic push rod is provided on the base, and a support plate which can slide up and down along the square plates on both sides of the base is provided on the upper end of the hydraulic push rod. An electric push rod is provided on one side of the support plate, and a chair is provided on the other side. A pressure sensor and a PLC controller are provided on the chair. A square hollow sleeve is provided on the output shaft of the electric push rod to connect the support rod, and a locking piece is provided to control the locking of the support rod. A support plate is provided on the upper end of the support rod, and clamps are symmetrically provided on the upper end of the support plate to fix the human head. A support plate is provided, an electric push rod is provided on one side of the support plate, a square hollow sleeve is provided on the electric push rod to connect the support rod, and a lock is provided at the upper end of the square hollow sleeve to control the locking of the support rod, a support plate is provided at the upper end of the support rod, and a chair is provided on the other side, and a pressure sensor is provided at the seat cushion position of the chair. When the human body sits down naturally, the lower jaw part first contacts the upper end of the support plate, pressing the support rod to move downward, until the human body sits down naturally on the chair, the pressure sensor senses the pressure, and immediately feeds back to the PLC controller to control the electromagnets on the lock piece 1 and the lock piece 2 to work, and the flat thread groove on the lock piece is inserted into the flat thread on the support rod to limit the up and down sliding of the support rod, and the support rod is locked in cooperation with the card groove on the square hollow sleeve; the support rod cooperates with the lock piece and the pressure sensor on the chair to achieve a distance from the upper end of the support plate to the chair that is just comfortable for the patient, so as to solve the problem in the prior art that after the patient's head is adjusted to different heights with the support rod, the patient's body will be in a state of stretching the head upward or arching the back due to the height, causing discomfort to the patient during the examination; An electric push rod, a hydraulic push rod, a PLC controller and a fundus angiography instrument are provided. The fundus angiography instrument monitors the position of human eyes in real time and feeds back to the PLC controller. The PLC controller controls the hydraulic push rod to drive the chair, and the support plate rises synchronously to a suitable observation position of the fundus angiography instrument. After reaching the position, the PLC controller controls the electric push rod to extend and retract to fine-tune the height of the support plate, adjust the pitch angle of the human mandible, and adjust to the best detection angle of the fundus angiography instrument. The PLC controller controls the stepper motor to rotate and drive the splint to approach synchronously, and stick to the human head from both sides to limit the left and right rotation of the head, and control the airbags on both sides to approach. The electromagnet works to make the airbags on both sides fit together to form a circular airbag ringed on the human neck. After the air pump inflates the airbag, the airbag expands to support the human head. The fundus angiography instrument cooperates with the PLC controller to control the electric push rod and the hydraulic push rod to automatically adjust the height of the support plate, thereby solving the problem that the height of the support rod in the prior art is completely manually adjusted, and the patient is repeatedly switched between patients with different heights, which wastes the time of medical staff and reduces the inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0005] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for describing the embodiment are briefly introduced below.
[0006] Figure 1 It is a schematic diagram of the overall structure of a fundus angiography auxiliary device with intelligent automatic height adjustment; Figure 2 It is a schematic diagram of the cross-sectional structure of a fundus angiography auxiliary device with intelligent automatic height adjustment; Figure 3 It is a schematic diagram of the structure of a support rod of a fundus angiography auxiliary device with intelligent automatic height adjustment; Figure 4 It is a structural schematic diagram of a lock component 1 of a fundus angiography auxiliary device with intelligent automatic height adjustment; Figure 5 It is a schematic diagram of the structure of the second locking member of an intelligent and automatic height-adjusting fundus angiography auxiliary device; Figure 6 The present invention is a schematic diagram of the structure of a splint of a fundus angiography auxiliary device with intelligent and automatic height adjustment.
[0007] In the accompanying drawings, the components represented by the reference numerals are listed as follows: Base, 101-square plate, 1011-limiting groove, 2-hydraulic push rod, 301-support plate, 302-electric push rod, 3021-square hollow sleeve, 303-chair, 3031-pressure sensor, 304-lock, 3041-lock one, 30411-slider one, 3042-lock two, 30421-slider two, 401-support rod, 402-support plate, 4021-square groove, 403-stepping motor, 5-plywood, 501-trapezoidal plate, 5011-air pump, 502-air bag, 6-PLC controller. DETAILED DESCRIPTION
[0008] The present invention discloses an intelligent fundus angiography auxiliary device with automatic height adjustment, which solves the problems in the prior art that the height of a support rod 401 is completely manually adjusted, and the patient has to repeatedly switch between patients of different heights, which wastes the time of medical staff and reduces the efficiency of examination. In addition, after the patient's head is adjusted to different heights with the support rod 401, the patient's body will be in a state of stretching the head upward or hunching the back due to the height, which causes discomfort to the patient during the examination.
[0009] The intelligent automatic height-adjustable fundus angiography auxiliary device of the present invention comprises: a base 1, a fundus angiography instrument; The upper end of the base 1 is symmetrically provided with a square plate 101 with a limiting groove 1011 in the middle connected to the support plate 301, and the middle of the base 1 is provided with a hydraulic push rod 2 connected to the lower end of the support plate 301; An electric push rod 302 is arranged on one side of the upper part of the support plate 301, and a seat is arranged on the other side; a square hollow sleeve 3021 is arranged on the output shaft of the electric push rod 302, the lower part of the square hollow sleeve 3021 is a square cavity, a through groove is arranged on the upper end for slidingly installing the support rod 401, and a slide groove is symmetrically arranged on the upper end of the square hollow sleeve 3021 to connect the lock member 304; the lock member 304 includes a lock member 1 3041 and a lock member 2 3042; the lock member 1 3041 is an annular plate, an electromagnet is arranged at the front end of the annular plate, a flat thread groove is arranged on the inner wall of the annular plate, a slider 1 30411 is arranged at the lower end of the annular plate to be clamped in the slide groove, and an elastic element is arranged on the slider 1 30411 to connect the slide groove wall; the lock member 2 3042 is an annular plate, an electromagnet is arranged at the front end of the annular plate, and a flat thread groove is arranged on the inner wall of the annular plate; a slider 2 30421 is arranged at the lower end of the annular plate to be clamped in the slide groove, and an elastic element is arranged on the slider 2 30421 to connect the slide groove wall; The support rod 401 is a flat threaded screw with protrusions on both sides. A support plate 402 is provided at the upper end of the support rod 401. A square groove 4021 starts in the middle of the support plate 402. Fixed elements are symmetrically arranged in the square groove 4021. A stepper motor 403 is arranged on one side of the square groove 4021. An elastic element is arranged at the lower end of the support rod 401 to connect with a square hollow sleeve 3021. The output shaft of the stepper motor 403 extends into the square groove 4021. The upper part is a threaded rod, the threads on both sides of the threaded rod are in opposite directions, and the threaded rod is symmetrically provided with fixing elements; the fixing elements include a clamping plate 5, the clamping plate 5 is a trapezoidal plate 501, a slider is provided at the lower end of the trapezoidal plate 501, a threaded hole is provided on the slider to connect the output shaft of the stepping motor 403, a universal ball groove is provided on the front inclined surface of the trapezoidal plate 501 to connect the airbag 502, an air pump 5011 is provided on one side of the trapezoidal plate 501, and the air pump 5011 is connected to the airbag 502 through a catheter; The seat is provided with a pressure sensor 3031, and the rear part of the seat is provided with a PLC controller 6; the PLC controller 6 is connected to the pressure sensor 3031, the hydraulic push rod 2, the electric push rod 302, the stepping motor 403 and the fundus angiography device through a circuit; The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example
[0010] like Figure 1The figure shows the overall structure schematic diagram of the intelligent automatic height-adjusting fundus angiography auxiliary device of the present invention. In this embodiment, the fundus angiography device, hydraulic push rod 2, air pump 5011, electric push rod 302, pressure sensor 3031 and other electronic components selected by the present invention are all prior art. Their role in the present invention is to ensure the integrity of the scheme and to ensure that the functions of fundus angiography detection and auxiliary fundus angiography detection can be realized in accordance with the implementation method of the present scheme in combination with the common models of the above-mentioned electronic components. Therefore, the above-mentioned electronic components can be selected according to actual needs and replaced in the present invention. Example
[0011] like Figure 2 The figure shows a schematic diagram of the cross-sectional structure of the present invention. In the prior art, after the patient's head is adjusted to different heights with the support rod 401, the patient's body, due to the height, will be in a state where the head is stretched upward or the back is arched, causing discomfort to the patient during the examination. In response to this technical problem, the inventor has prioritized a functional solution in which the initial position of the support rod 401 is at a higher position, and the support rod 401 can be adjusted to the height of the seat with the natural movement of the lower jaw when the human body sits down, so that the human body sits upright naturally on the seat in a comfortable state. According to the decoupling stocks around, it is conceived to rely on the telescopic fixation on the infusion stand of the hospital or to adopt the electric push rod 302 to achieve it. However, considering that the bolts need to be manually screwed when the infusion stand is fixed, the electric push rod 302 moves relatively slowly, which still wastes time and is still not in line with practical use. Finally, the inventor has come up with a method of clamping the flat threaded rod with the flat threaded groove used in the present invention to limit the upward and downward sliding of the support rod 401. In this embodiment, a support rod 401 is provided; the support rod 401 is a flat threaded screw, protrusions are provided on both sides of the flat threaded screw, a support plate 402 is provided at the upper end of the support rod 401, a square groove 4021 starts in the middle of the support plate 402, and fixing elements are symmetrically provided in the square groove 4021. A stepper motor 403 is provided on one side of the square groove 4021, and an elastic element is provided at the lower end of the support rod 401 to connect the square hollow sleeve 3021. The structural schematic diagram can be referred to Figure 3 As shown; in the natural state, under the action of the elastic element, the height of the support plate 402 at the upper end of the support rod 401 is relatively high, and when the human body sits down naturally, the lower jaw falls on the support plate 402, which will press the support rod 401 to slide downward along the lower square hollow sleeve 3021. When the human body sits on the chair 303, the height from the support plate 402 to the chair 303 is just the appropriate height from the lower jaw to the chair 303 when the human body sits down naturally. At this time, the present invention is provided with a lock 304 and a pressure sensor 3031 to limit the up and down sliding of the support rod 401; In this embodiment, the lock 304 includes a lock 1 3041 and a lock 2 3042. The lock 1 3041 and the lock 2 3042 are both annular plates with electromagnets at the front end, and a flat thread groove is provided on the inner wall of the annular plate. A slider 1 30411 and a slider 2 30421 are respectively provided at the lower end of the annular plate to be clamped in the slide groove, and elastic elements are provided on the slider 1 30411 and the slider 2 30421 to connect the slide groove walls on both sides. The structural schematic diagram of the lock 1 3041 and the lock 2 3042 can be referred to Figure 4 and Figure 5 As shown; through the operation of the electromagnet, the lock piece 1 3041 and the lock piece 2 3042 move toward each other in the slide groove to fit and press the support rod 401, and the flat thread groove on the lock piece 304 is inserted into the flat thread on the support rod 401 to limit the up and down sliding of the support rod 401, and the support rod 401 is locked in cooperation with the card slot on the square hollow sleeve 3021; the support rod 401 cooperates with the lock piece 304 and the pressure sensor 3031 on the chair 303 to achieve a distance from the upper end of the support plate 301 to the chair 303 that is just comfortable for the patient, thereby solving the problem in the prior art that after the patient's head is adjusted to different heights with the support rod 401, the patient's body will be in a state of stretching the head upward or hunching the back due to the height, causing discomfort to the patient during the examination.
[0012] In summary, the present invention provides an intelligent fundus angiography auxiliary device with automatic height adjustment, wherein a support plate 301 is provided, an electric push rod 302 is provided on one side of the support plate 301, a square hollow sleeve 3021 is provided on the electric push rod 302 to connect with the support rod 401, and a lock 304 is provided at the upper end of the square hollow sleeve 3021 to control the locking of the support rod 401, a support plate 402 is provided at the upper end of the support rod 401, and a chair 303 is provided on the other side, and a pressure sensor 3031 is provided at the seat cushion position of the chair 303. When a human body sits down naturally, the lower jaw first contacts the upper end of the support plate 402, pressing the support rod 401 to move downward, until the human body sits down naturally on the chair 303, and the pressure sensor 3031 senses the pressure and immediately feeds back to the user. The PLC controller 6 controls the electromagnets on the lock piece 1 3041 and the lock piece 2 3042 to work, and the flat thread groove on the lock piece 304 is inserted into the flat thread on the support rod 401 to limit the up and down sliding of the support rod 401, and the support rod 401 is locked in cooperation with the card slot on the square hollow sleeve 3021; the support rod 401 cooperates with the lock piece 304 and the pressure sensor 3031 on the chair 303 to achieve a distance from the upper end of the support plate 301 to the chair 303 that is just the comfortable state for the patient, so as to solve the problem in the prior art that after the patient's head is adjusted to different heights with the support rod 401, the patient's body will be in a state of stretching the head upward or hunching the back due to the height, causing discomfort to the patient during the examination; An electric push rod 302, a hydraulic push rod 2, a PLC controller 6 and a fundus angiogram are provided. The fundus angiogram monitors the position of human eyes in real time and feeds back to the PLC controller 6. The PLC controller 6 controls the hydraulic push rod 2 to drive the chair 303, and the support plate 402 rises synchronously to a suitable observation position for the fundus angiogram. After reaching the position, the PLC controller 6 controls the electric push rod 302 to extend and retract the support plate 402 for fine adjustment of the height, and adjusts the pitch angle of the human mandible. After adjusting to the optimal detection angle of the fundus angiogram, the PLC controller 6 controls the stepping motor 403 to rotate and drive the splint 5 to approach synchronously, so as to move the two The side is close to the human head to limit the left and right rotation of the head and control the air bags 502 on both sides to get closer. The electromagnet works to make the air bags 502 on both sides fit together to form a circular air bag 502 ringed on the human neck. After the air pump 5011 inflates the air bag 502, the air bag 502 expands and supports the human head. The fundus angiography instrument cooperates with the PLC controller 6 to control the electric push rod 302 and the hydraulic push rod 2 to automatically adjust the height of the support plate 402, thereby solving the problem in the prior art that the height of the support rod 401 is completely dependent on manual adjustment, and repeated switching between patients of different heights wastes the time of medical staff and reduces the efficiency of examination.
[0013] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described.
Claims
1. An intelligent and automatic height-adjustable fundus angiography auxiliary device. It is characterized in that include: Base, fundus angiography device; The upper end of the base is symmetrically provided with a square plate with a limit groove in the middle connected to the support plate, and the middle of the base is provided with a hydraulic push rod connected to the lower end of the support plate; An electric push rod is arranged on one side of the upper part of the support plate, and a seat is arranged on the other side; a square hollow sleeve is arranged on the output shaft of the electric push rod, the lower part of the square hollow sleeve is a square cavity, a through groove is arranged on the upper end for slidingly installing the support rod, and a slide groove connecting the locking member is symmetrically provided at the upper end of the square hollow sleeve; the locking member comprises a first lock member and a second lock member; the first lock member is an annular plate, an electromagnet is arranged at the front end of the annular plate, a flat thread groove is arranged on the inner wall of the annular plate, a slider first is arranged at the lower end of the annular plate to be inserted into the slide groove, and an elastic element is arranged on the slider first to connect the slide groove wall; the second lock member is an annular plate, an electromagnet is arranged at the front end of the annular plate, and a flat thread groove is arranged on the inner wall of the annular plate; a slider second is arranged at the lower end of the annular plate to be inserted into the slide groove, and an elastic element is arranged on the slider second to connect the slide groove wall; The support rod is a flat threaded screw, with protrusions on both sides of the flat threaded screw, a support plate on the upper end of the support rod, a square groove starting from the middle of the support plate, symmetrically arranged fixing elements in the square groove, a stepper motor on one side of the square groove, and an elastic element on the lower end of the support rod connected to a square hollow sleeve; the output shaft of the stepper motor extends into the square groove, the output shaft of the stepper motor is a threaded rod, the threads on both sides of the threaded rod are in opposite directions, and the fixing elements are symmetrically arranged on the threaded rod; the fixing element includes a clamping plate, the clamping plate is a trapezoidal plate, a slider is arranged at the lower end of the trapezoidal plate, a threaded hole is provided on the slider to connect the output shaft of the stepper motor, a universal ball groove is provided on the front inclined surface of the trapezoidal plate to connect the airbag, an air pump is provided on one side of the trapezoidal plate, and the air pump is connected to the airbag through a catheter; A pressure sensor is arranged on the seat, and a PLC controller is arranged at the rear of the seat; the PLC controller is connected with the pressure sensor, a hydraulic push rod, an electric push rod, a stepping motor and a fundus angiography device through a circuit.
2. According to claim 1, an intelligent and automatic height-adjustable fundus angiography auxiliary device, It is characterized in that A square hollow sleeve is arranged on the output shaft of the electric push rod, the lower part of the square hollow sleeve is a square cavity, the upper end is provided with a through slot for slidingly installing the support rod, and symmetrical card slots are provided on both sides of the through slot, and the protrusions on both sides of the support rod are slidably engaged in the card slot to limit the rotation of the support rod.
3. According to claim 1, an intelligent and automatic height-adjustable fundus angiography auxiliary device, It is characterized in that A sliding groove is symmetrically provided at the upper end of the square hollow sleeve, and a freely sliding locking piece is arranged in the sliding groove; the locking piece comprises a locking piece 1 and a locking piece 2, and both the locking piece 1 and the locking piece 2 are annular plates with an electromagnet arranged at the front end, and a flat thread groove is arranged on the inner wall of the annular plate, and a slider 1 and a slider 2 are respectively arranged at the lower end of the annular plate to be clamped in the sliding groove, and elastic elements are arranged on the slider 1 and the slider 2 to connect the sliding groove walls on both sides respectively; the electromagnet works to make the locking piece 1 and the locking piece 2 move toward each other in the sliding groove to fit and press the support rod, and the flat thread on the support rod is clamped in the flat thread groove on the locking piece to limit the up and down sliding of the support rod, and the support rod is locked in cooperation with the clamping groove on the square hollow sleeve.
4. According to claim 1, an intelligent and automatic height-adjustable fundus angiography auxiliary device, It is characterized in that The support rod is a flat threaded screw, and protrusions are arranged on both sides of the flat threaded screw. A support plate is arranged at the upper end of the support rod, a square groove starts in the middle of the support plate, and fixing elements are symmetrically arranged in the square groove. A stepping motor is arranged on one side of the square groove, and an elastic element is arranged at the lower end of the support rod to connect with a square hollow sleeve.
5. According to claim 1, an intelligent and automatic height-adjustable fundus angiography auxiliary device, It is characterized in that A square groove is provided in the middle of the support plate, and fixing elements are symmetrically arranged in the square groove. A stepper motor is arranged on one side of the square groove. The output shaft of the stepper motor extends into the square groove, and a threaded rod is arranged on the output shaft of the stepper motor. The threads on both sides of the threaded rod rotate in opposite directions, and fixing elements are symmetrically arranged on the threaded rod. By controlling the forward and reverse rotation of the stepper motor, the fixing elements on both sides are driven to synchronously approach or move away in the square groove, and the symmetrically arranged fixing elements are controlled to clamp and relax the human head.
6. According to claim 1, an intelligent and automatic height-adjustable fundus angiography auxiliary device, It is characterized in that The fixing element includes a splint, which is a trapezoidal plate. A slider is arranged at the lower end of the trapezoidal plate. A threaded hole is provided on the slider to connect to the output shaft of the stepper motor. A universal ball groove is provided on the inclined surface at the front end of the trapezoidal plate to connect to the airbag. An air pump is arranged on one side of the trapezoidal plate. The air pump is connected to the airbag through a catheter. An electromagnet is arranged at the front end of the airbag. The electromagnet on the airbag is controlled to work so that the airbags on both sides are fitted to form a circular airbag ringed on the human neck. After the air pump inflates the airbag, the airbag expands to support the human head.
7. According to claim 1, an intelligent and automatic height-adjustable fundus angiography auxiliary device, It is characterized in that The PLC controller is connected to the pressure sensor, the hydraulic push rod, the electric push rod, the stepping motor and the fundus angiography instrument through a circuit.