CN116869767A - Medical chair for eye surgery for head adjustment and correction - Google Patents
Medical chair for eye surgery for head adjustment and correction Download PDFInfo
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- CN116869767A CN116869767A CN202311154972.1A CN202311154972A CN116869767A CN 116869767 A CN116869767 A CN 116869767A CN 202311154972 A CN202311154972 A CN 202311154972A CN 116869767 A CN116869767 A CN 116869767A
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- rotating
- seat
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- 238000001356 surgical procedure Methods 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 230000002441 reversible effect Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 210000003128 head Anatomy 0.000 description 32
- 241000219098 Parthenocissus Species 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- 210000001217 buttock Anatomy 0.000 description 6
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 230000007306 turnover Effects 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 208000010412 Glaucoma Diseases 0.000 description 1
- 206010061323 Optic neuropathy Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 210000001508 eye Anatomy 0.000 description 1
- 208000030533 eye disease Diseases 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000020911 optic nerve disease Diseases 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/02—Chairs with means to adjust position of patient; Controls therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/10—Parts, details or accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/10—Parts, details or accessories
- A61G15/12—Rests specially adapted therefor, e.g. for the head or feet
- A61G15/125—Head-rests
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The application provides a medical chair for eye surgery for head adjustment and correction, which comprises a base, wherein a seat body is obliquely arranged on the base, an adjusting device for adjusting the inclination angle of the seat body is arranged on the base, and the adjusting device comprises: the mounting seat is internally provided with a cavity, a plurality of through grooves are uniformly formed in the top along the radial direction in a penetrating way, and the baffle is assembled in the through grooves through rotation of the torsion springs; the rotating plate is arranged in the cavity of the mounting seat in a rotating mode along the horizontal direction, a plurality of arc limiting blocks are uniformly arranged on the top of the rotating plate along the radial direction, and when the arc limiting blocks are abutted against the lower portion of the baffle, the upper portion of the baffle is abutted against the U-shaped frame so as to limit the U-shaped frame; the pedal block is arranged on the mounting seat in a sliding manner along the vertical direction, a third spring is arranged between the pedal block and the mounting seat, and the pedal block is in transmission connection with the rotating plate through the transmission mechanism. According to the application, the inclination angle of the seat body can be adjusted step by using the operation mode of stepping the pedal block, so that the operation is convenient, time-saving and labor-saving.
Description
Technical Field
The application belongs to the technical field of medical auxiliary instruments, and particularly relates to a medical chair for an ophthalmic surgery for head adjustment and correction.
Background
The general term "eye disease department" refers to the discipline of studying diseases related to the visual system, including the eyeball and its associated tissues. Ophthalmic diseases such as vitreous and retina diseases, ocular optics, glaucoma, optic neuropathy, cataract and the like are commonly studied by ophthalmology. Ophthalmic surgery is a therapeutic operation for these ophthalmic diseases. In the course of ophthalmic disease treatment surgery, it is necessary to position the patient with the aid of a medical chair, and then examine the patient and perform surgical treatment with an ophthalmic medical instrument.
The present chinese patent of application with bulletin number CN114712144B discloses a surgical chair (medical chair), which comprises a supporting base, a mounting seat is arranged above the supporting base, a groove is arranged on the mounting seat, a rotating arm is rotationally arranged in the groove, an angle adjusting device for adjusting the inclination angle of the rotating arm is arranged on the mounting seat, one end of the rotating arm, which is far away from the mounting seat, is rotationally provided with a second cross rod, a seat frame is fixed on the second cross rod, the angle adjusting device comprises a U-shaped frame, the U-shaped frame is hinged on one side, which is far away from the seat frame, of the rotating arm, a strip-shaped slideway is arranged on the supporting base, a positioning component is arranged on the strip-shaped slideway in a sliding way, and a driving component for adjusting the position of the positioning component is arranged on the supporting base. The operation chair can realize the adjustment of lying angle.
However, in the above technical scheme, in the process of rapidly adjusting the overall angle of the chair through the positioning assembly, the rotating arm needs to be manually lifted, then the U-shaped frame is manually moved to a proper stop block, and the U-shaped frame is limited through the stop block. This adjustment process requires manual operation by medical staff, which is time-consuming and laborious.
Disclosure of Invention
In order to solve the problems in the background art, the application provides the medical chair for the ophthalmic surgery, which is convenient to operate, time-saving and labor-saving, and the inclination angle of the chair body can be adjusted step by using the operation mode of stepping the pedal block.
In order to achieve the above object, the present application provides the following technical solutions:
the utility model provides a medical chair for ophthalmic surgery of correction is adjusted to head, includes the base, and the slope sets up the seat body on the base, and the bottom and the base of seat body are articulated, and the downside movable assembly U type frame of seat body sets up the adjusting device in order to adjust the inclination of seat body through adjusting the spacing position to U type frame on the base, adjusting device includes:
the mounting seat is arranged on the base and is internally provided with a cavity, the top of the mounting seat is uniformly penetrated and provided with a plurality of through grooves along the radial direction, and the through grooves are internally provided with baffle plates through torsion spring rotation assembly;
the rotating plate rotates in the cavity of the mounting seat along the horizontal direction, the rotating plate rotates by taking the central axis as the center, a plurality of arc limiting blocks are uniformly arranged at the top of the rotating plate along the radial direction, the arc limiting blocks correspond to the baffle plates one by one, and when the arc limiting blocks are abutted against the lower parts of the baffle plates, the upper parts of the baffle plates are abutted against the U-shaped frame so as to limit the U-shaped frame;
the pedal piece, it slides along vertical direction and sets up on the mount pad, set up the third spring that is used for making pedal piece reset between pedal piece and the mount pad, pedal piece passes through drive mechanism and is connected with the rolling plate transmission to the drive rolling plate is rotatory, and then makes a plurality of arc stopper break away from corresponding baffle in proper order.
The beneficial effects are as follows: when the inclination angle of the seat body needs to be adjusted, the rotating plate can be driven to drive the plurality of arc-shaped limiting blocks to rotate together only by stepping on the pedal blocks, so that the plurality of arc-shaped limiting blocks are separated from the corresponding baffle plates in sequence; every time the pedal block is stepped on, one baffle plate is added and is not limited by the abutting of the corresponding arc limiting block, the U-shaped frame can slide from the baffle plate until the U-shaped frame is limited by the abutting of the next baffle plate, and therefore the aim of adjusting the inclination angle of the seat body step by step according to the gear is achieved; the whole adjusting process is free of manual operation of medical staff, convenient to operate and time-saving and labor-saving.
Furthermore, a ratchet wheel is fixedly sleeved on the peripheral side wall of the outer periphery of the rotating plate, and pawls matched with the ratchet wheel are assembled on the inner side wall of the mounting seat through torsion springs; the rotating plate is rotationally connected with the mounting seat through the rotating seat; the transmission mechanism comprises:
the gear is rotationally sleeved on the peripheral side wall of the rotating seat through a one-way bearing;
the rack penetrates through the side wall of the mounting seat in the horizontal direction and is meshed with the gear, and a second spring for resetting the rack is arranged between the rack and the inner side wall of the mounting seat;
inclined planes are formed at the ends, close to the racks, of the pedal blocks, and the two inclined planes are matched; the user steps on the pedal block to enable the pedal block to slide downwards, the two inclined planes are abutted and slide relatively to push the rack to slide along the horizontal direction, and then the driving gear drives the rotating seat and the rotating plate to rotate, so that one arc-shaped limiting block is separated from the corresponding baffle plate, and the U-shaped frame slides to the next baffle plate; the user loosens the foot, and the third spring promotes pedal piece and resets upwards, and the reverse sliding of second spring pulling rack resets, and the gear counter-rotation does not take place to rotate under ratchet and pawl's cooperation.
The beneficial effects are as follows: the pedal block can be driven to slide downwards in an operation mode of stepping on the pedal block, so that the rack is pushed to slide horizontally, and the aim of driving the rotating plate to rotate is achieved due to the meshing of the rack and the gear, and the driving is stable and reliable; the rotating plate rotates to drive the arc-shaped limiting block to complete one-time gear shifting limiting, the foot is loosened, the third spring can push the pedal block upwards to reset, the blocking of the pedal block is omitted, the second spring pulls the rack to reversely slide to reset, the gear reversely rotates, the rotating plate is limited in one direction by the ratchet wheel and the pawl due to the fact that the gear is installed through the one-way bearing, the rotating plate is prevented from reversely rotating, next gear adjustment is prevented from being influenced, and smooth gear adjustment is guaranteed.
Further, set up the torsional spring between rotation seat and the mount pad, set up the sleeve along vertical direction on the rotation seat, the rectangle pole is established to the slip cap in the sleeve, the top and the rotation board of rectangle pole are connected, the gear passes through one-way bearing and rotates the cover and establish on the rectangle pole, set up first spring along vertical direction in the sleeve, the upper and lower both ends of first spring respectively with the bottom of rectangle pole and the top looks butt of rotation seat, the pedal piece passes through drive assembly and is connected with the rectangle pole transmission to the drive rectangle pole slides downwards, and then makes arc stopper and baffle totally break away from.
The beneficial effects are as follows: the mode of stepping on the pedal block by further feet can enable the arc-shaped limiting block to be completely separated from the baffle plate, so that the inclination angle of the seat body can be conveniently and rapidly adjusted, and the U-shaped frame can be conveniently and reversely moved to the initial position.
Further, the transmission assembly comprises a sliding block which is arranged on the mounting seat in a sliding manner along the vertical direction and is matched with the pedal block, a traction channel which is arranged on the mounting seat, and a traction rope which is movably arranged in the traction channel and two ends of which are respectively connected with the sliding block and the rectangular rod; the pedal block pushes the sliding block downwards and pulls the rectangular rod to slide downwards through the traction rope.
The beneficial effects are as follows: the purpose of pushing the sliding block is achieved by further stepping on the pedal block, and then the rectangular rod is pulled to slide downwards through the traction rope, so that the purposes of enabling the heights of all arc-shaped limiting blocks to descend and be separated from all baffles are achieved, the operation is convenient, and the driving is stable and reliable.
Further, the height of the rack is higher than that of the sliding block.
The beneficial effects are as follows: the operation mode of the pedal block is ensured, the aim of adjusting the inclination angle of the seat body according to the gear can be achieved, the aim of quickly adjusting the inclination angle of the seat body and reversely moving the U-shaped frame to the initial position can be achieved only by further downwards stepping the pedal block on the basis, the function separation operation is facilitated, and confusion is avoided.
Further, when the pedal block slides downwards until the top of the pedal block is in the same horizontal plane with the top of the mounting seat, the pedal block is in contact with the sliding block.
The beneficial effects are as follows: the pedal block is limited in stepping depth through the top of the mounting seat, so that the operation is more convenient.
Further, the side wall of the baffle plate, which is abutted against the arc-shaped limiting block, is provided with an arc surface matched with the bending radian of the arc-shaped limiting block.
The beneficial effects are as follows: when the arc-shaped limiting block rotates along with the rotating plate, the arc-shaped limiting block is attached to the baffle plate and slides smoothly, and the influence on operation caused by overlarge friction force between the arc-shaped limiting block and the baffle plate is avoided.
Further, the top of mount pad is fixed with the corresponding position of logical groove and is set up the U template, the U template is used for preventing that the U frame from breaking away from the top of mount pad.
The beneficial effects are as follows: the U-shaped plate is arranged to limit the U-shaped frame, so that the U-shaped frame is prevented from being separated from the top of the mounting seat, and the U-shaped frame is ensured to slide at the top of the mounting seat all the time.
Further, the seat body includes the service creeper, holds in the palm buttockss board and head backup pad, the bottom and the base of service creeper are articulated, hold in the palm buttockss board and set up in the upside of service creeper with overturning, the head backup pad sets up in the top of service creeper with overturning.
The beneficial effects are as follows: through the turnover buttock board that holds in the palm, adjust the contained angle between buttock board and the service creeper, through the turnover head backup pad, adjust the contained angle between head backup pad and the service creeper to adapt to the patient of different sizes and use.
Further, the upper side of the head supporting plate is provided with a clamping mechanism for fixing the head of a patient, and the clamping mechanism comprises two clamping plates which are arranged on the head supporting plate in a sliding manner and an electric sliding rail for driving the two clamping plates to approach/separate.
The beneficial effects are as follows: the two clamping plates are adjusted to be close to/far away from each other so as to clamp and fix the cranium of patients with different body types.
The application has the following beneficial effects:
1. the rotating plate can be driven to drive the plurality of arc-shaped limiting blocks to rotate together only by stepping on the pedal blocks, so that the plurality of arc-shaped limiting blocks are separated from the corresponding baffle plates in sequence; every time the pedal block is stepped on, one baffle plate is added and is not limited by the abutting of the corresponding arc limiting block, the U-shaped frame can slide from the baffle plate until the U-shaped frame is limited by the abutting of the next baffle plate, and therefore the aim of adjusting the inclination angle of the seat body step by step according to the gear is achieved; the whole adjusting process is free of manual operation of medical staff, convenient to operate and time-saving and labor-saving.
2. The pedal block is stepped on and is meshed with the gear through the rack for transmission, so that the purpose of driving the rotating plate to rotate is achieved, and the driving is stable and reliable; the unidirectional bearing, the ratchet wheel and the pawl are unidirectional in limiting, so that the rotating plate is prevented from rotating reversely, next gear adjustment is prevented from being influenced, and smooth gear adjustment is ensured.
3. The mode of stepping down the pedal block is further realized on the basis of gear adjustment, all the arc limiting blocks and the baffle plates can be completely separated from each other, the inclination angle of the seat body can be conveniently and rapidly adjusted, and the U-shaped frame can be conveniently and reversely moved to the initial position.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the application are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 is a perspective view of an ophthalmic surgical chair for head adjustment correction in an embodiment of the present application;
FIG. 2 is a schematic perspective sectional view of an adjusting device according to an embodiment of the present application;
fig. 3 is a schematic perspective view illustrating a positional relationship between a plurality of arc-shaped limiting blocks and a plurality of baffles in an embodiment of the present application;
FIG. 4 is a perspective layout of a plurality of baffles in an embodiment of the present application;
FIG. 5 is a schematic perspective sectional view of another angle of the adjusting device according to the embodiment of the present application;
FIG. 6 is a schematic diagram of a linkage connection structure of a pedal block and a rack in an embodiment of the present application;
fig. 7 is a schematic diagram illustrating an operation of a foot pedal in an embodiment of the present application.
Reference numerals illustrate:
1. a base; 2. a lying plate; 3. a head support plate; 4. a clamping plate; 5. a hip-rest plate; 6. a cylinder; 7. a U-shaped frame; 8. a mounting base; 9. a U-shaped plate; 10. a through groove; 11. a baffle; 12. a cambered surface; 13. a rotating plate; 14. an arc-shaped limiting block; 15. a ratchet wheel; 16. a pawl; 17. a rectangular bar; 18. a sleeve; 19. a rotating seat; 20. a first spring; 21. a one-way bearing; 22. a gear; 23. a rack; 24. a second spring; 25. a traction rope; 26. a sliding block; 27. a pedal block; 28. a connecting block; 29. and a third spring.
Detailed Description
The following description of the embodiments of the present application will be made more complete and clear to those skilled in the art by reference to the figures of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1, the medical chair for ophthalmic surgery for head adjustment and correction comprises a base 1, wherein a seat body is obliquely arranged on the base 1. The seat body comprises a lying plate 2, a hip-supporting plate 5 and a head supporting plate 3, wherein the lying plate 2 is obliquely arranged, and the left end of the lying plate is higher than the right end of the lying plate.
The hip-rest board 5 is installed in the middle of the upper side of the lying board 2 in a reversible manner. The hip-rest plate 5 is hinged with the lying plate 2, so that the hip-rest plate 5 can be turned over on the lying plate 2 to adjust the supporting angle. Two cylinders 6 are arranged between the hip-supporting plate 5 and the lying plate 2, two ends of each cylinder 6 are hinged with the hip-supporting plate 5 and the lying plate 2 respectively, the cylinders 6 are opened, the overturning angle of the hip-supporting plate 5 on the lying plate 2 can be adjusted, and the hip-supporting plate 5 can be stably and reliably supported. The head support plate 3 is rotatably mounted at the left end of the lying plate 2. The head supporting plate 3 is hinged with the lying plate 2 through two hinges. An electric push rod for driving the head support plate 3 to turn over is arranged between the back surface of the head support plate 3 and the lying plate 2, and the electric push rod is opened, so that the turning angle of the head support plate 3 on the lying plate 2 can be adjusted, and the head support plate 3 can be stably and reliably supported. Through the turnover buttock-supporting plate 5, adjust the contained angle between buttock-supporting plate 5 and the service creeper 2, through the turnover head backup pad 3, adjust the contained angle between head backup pad 3 and the service creeper 2 to adapt to the patient of different sizes and use.
The upper side of the head support plate 3 is provided with a clamping mechanism for fixing the head of the patient. The head support plate 3 is provided with a mounting chute, and the clamping mechanism comprises two clamping plates 4 which are slidably mounted in the mounting chute, and an electric sliding rail which is mounted on the back of the head support plate 3 and is used for driving the two clamping plates 4 to approach/depart from each other, wherein the electric sliding rail is a piece of prior art equipment and is not further described herein. In another embodiment, the clamping mechanism comprises a mounting frame mounted on the back of the head support plate 3, a bidirectional screw rod which is arranged along the length direction of the mounting frame and is rotationally connected with the mounting frame through a bearing, a motor which is mounted at one end of the mounting frame and is connected with the end part of the bidirectional screw rod through a coupler, two sleeves which are sleeved on the bidirectional screw rod through threads, a connecting plate which is welded on the sleeves and penetrates through the mounting sliding groove and is in sliding connection with the mounting sliding groove, and a clamping plate 4 which is connected with the other end of the connecting plate through a bolt. The motor is started to drive the bidirectional screw rod to rotate, so that the two clamping plates 4 can be driven to approach/separate from each other, and the driving effect is stable and reliable. The two clamping plates 4 are adjusted to be close to/far away from each other so as to clamp and fix the cranium of patients with different body types.
The right-hand member of service creeper 2 is articulated with base 1, ensures that the right-hand member of service creeper 2 rotates throughout and connects on base 1, only need adjust the height of service creeper 2 left end like this, can reach the purpose of adjusting the inclination of service creeper 2. The U-shaped frame 7 is assembled on the lower side surface of the lying plate 2 in a rotating mode, and the U-shaped frame 7 can be turned over on the lying plate 2. The adjusting device is installed on the base 1 and is located on the left side of the lying plate 2, one end, far away from the lying plate 2, of the U-shaped frame 7 is lapped on the adjusting device, and the adjusting device achieves the purpose of adjusting the inclination angle of the lying plate 2 by adjusting the limiting position of the end part of the U-shaped frame 7.
As shown in fig. 1, the adjusting device comprises an installation seat 8 fixed on a base 1, a cavity is formed in the installation seat 8, six through grooves 10 are uniformly formed in the top of the installation seat 8 in a penetrating manner along the radial direction (the extending direction of the lying plate 2), and a baffle 11 is assembled in the through grooves 10 through torsion springs in a rotating manner. When the torsion spring is not stressed, the baffle 11 is in a vertical state. The U-shaped frame 7 is limited by fixedly welding the U-shaped plate 9,U plate 9 at the position, corresponding to the through groove 10, of the top of the mounting seat 8, so that the U-shaped frame 7 is prevented from being separated from the top of the mounting seat 8, and the U-shaped frame 7 is ensured to slide at the top of the mounting seat 8 all the time.
As shown in fig. 2, a rotating plate 13 is rotatably mounted in the cavity of the mounting seat 8 along the horizontal direction, the rotating plate 13 rotates around the central axis thereof, and six arc-shaped limiting blocks 14 are uniformly mounted on the top of the rotating plate 13 along the radial direction. The six arc-shaped limiting blocks 14 are in one-to-one correspondence with the six baffles 11, and when the arc-shaped limiting blocks 14 are abutted against the lower parts of the baffles 11, the upper parts of the baffles 11 are abutted against the U-shaped frame 7 and cannot rotate, so that the effect of limiting the U-shaped frame 7 is achieved.
As shown in fig. 3, in the initial state, the positions of the six arc-shaped limiting blocks 14 and the six baffles 11 are in an equi-differential relationship in sequence, that is, the radian of the arc-shaped limiting block 14 at the rightmost side is 25 degrees, the second is 50 degrees, … …, and the leftmost side is 150 degrees.
As shown in fig. 4, a cambered surface 12 matched with the bending radian of the arc-shaped limiting block 14 is arranged on the side wall of the baffle 11, which is abutted against the arc-shaped limiting block 14. The follow-up arc limiting block 14 is guaranteed to be attached to the baffle 11 and slide smoothly when rotating along with the rotating plate 13, and the influence on the operation effect caused by overlarge friction force between the follow-up arc limiting block and the baffle is avoided.
As shown in fig. 3, a ratchet 15 is fixedly sleeved on the outer circumferential side wall of the rotating plate 13, and a pawl 16 matched with the ratchet 15 is assembled on the inner side wall of the mounting seat 8 through a torsion spring.
As shown in fig. 5, a rectangular rod 17 is welded at the center of the bottom end of the rotating plate 13 in the vertical direction, a sleeve 18 is slidably sleeved on the lower portion of the rectangular rod 17, a rotating seat 19 is welded at the bottom end of the sleeve 18, the rotating seat 19 is rotatably connected with the mounting seat 8, and a torsion spring is mounted at the rotating connection. A first spring 20 is arranged in the sleeve 18 along the vertical direction, and the upper end and the lower end of the first spring 20 are respectively abutted with the bottom of the rectangular rod 17 and the top of the rotating seat 19. The gear 22 is rotatably sleeved on the rectangular rod 17 through the one-way bearing 21, the rack 23 penetrates through the side wall of the mounting seat 8 in the horizontal direction and is slidably mounted, the rack 23 is meshed with the gear 22, and a second spring 24 for resetting the rack 23 is mounted between the rack 23 and the inner side wall of the mounting seat 8. The inside of mount pad 8 has offered the gliding traction channel of confession haulage rope 25, and the centre of a circle department of rotating seat 19 has offered the through-hole, sliding block 26 and mount pad 8 sliding connection, and the one end and the sliding block 26 fixed connection of haulage rope 25, the other end of haulage rope 25 pass the through-hole on rotating seat 19 and with rectangular bar 17 fixed connection. The pedal block 27 is slidably arranged on the mounting seat 8 along the vertical direction, and a third spring 29 for resetting the pedal block 27 is arranged between the pedal block 27 and the mounting seat 8.
As shown in fig. 6, a connecting block 28 is fixedly connected to one side of the pedal block 27. Inclined planes are formed at the end parts of the racks 23, which are close to the connecting blocks 28, and at the end parts of the pedal blocks 27, which are close to the sliding blocks 26, respectively, the inclined planes of the end parts of the racks 23 are matched with the inclined planes of the bottom ends of the connecting blocks 28, and the inclined planes of the top ends of the sliding blocks 26 are matched with the inclined planes of the bottom ends of the pedal blocks 27. The pedal block 27 is stepped on, and when the pedal block 27 slides downwards until the top of the pedal block 27 is at the same level with the top of the mounting seat 8, the gear-pressing adjustment is completed once, and at the moment, the pedal block 27 just contacts with the sliding block 26.
When the inclination angle of the lying plate 2 needs to be adjusted, the rotating plate 13 can be driven to drive the six arc-shaped limiting blocks 14 to rotate together only by stepping on the pedal blocks 27, so that the six arc-shaped limiting blocks 14 are separated from the corresponding baffle plates 11 in sequence; every time the pedal block 27 is stepped on, one baffle plate 11 is added and is not limited by the abutting of the corresponding arc limiting block 14, the U-shaped frame 7 can slide from the baffle plate 11 until the U-shaped frame is limited by the abutting of the next baffle plate 11, and therefore the aim of adjusting the inclination angle of the seat body step by step according to the gear is achieved; the whole adjusting process is free of manual operation of medical staff, convenient to operate and time-saving and labor-saving.
As shown in fig. 7, the user steps on the pedal block 27 to slide downwards until the top of the pedal block 27 and the top of the mounting seat 8 are at the same horizontal plane, in this process, the inclined plane at the bottom end of the connecting block 28 and the inclined plane at the end of the rack 23 are relatively displaced to push the rack 23 to slide along the horizontal direction, and then the driving gear 22 drives the rotating seat 19 and the rotating plate 13 to rotate, so that one arc-shaped limiting block 14 is separated from the corresponding baffle 11, the baffle 11 is not blocked, and the U-shaped frame 7 slides to the next baffle 11. The user releases the foot, the third spring 29 pushes the pedal block 27 upwards to reset, the second spring 24 pulls the rack 23 to slide reversely to reset, the gear 22 rotates reversely, the rotating plate 13 does not rotate under the cooperation of the ratchet wheel 15 and the pawl 16, the next gear adjustment is prevented from being influenced, and smooth gear adjustment is ensured.
After the pedal block 27 is stepped on by foot, the top of the pedal block 27 is flush with the top of the mounting seat 8, the pedal tip continuously presses the pedal block 27 downwards, the pedal block 27 continuously slides downwards, the inclined plane at the top end of the sliding block 26 and the inclined plane at the bottom end of the pedal block 27 are relatively displaced, and then the rectangular rod 17 is pulled to slide downwards through the traction rope 25, so that the purposes that all the arc limiting blocks 14 descend along with the rotating plate 13 and are completely separated from all the baffle plates 11 are achieved, the operation is convenient, and the driving is stable and reliable. In this way, the inclination angle of the seat body can be conveniently and quickly adjusted, and the U-shaped frame 7 can be conveniently and reversely moved to the initial position.
The operation mode of the pedal block 27 can achieve the purpose of adjusting the inclination angle of the lying plate 2 according to the gear, and the purpose of rapidly adjusting the inclination angle of the lying plate 2 and reversely moving the U-shaped frame 7 to the initial position can be achieved only by further downwards stepping the pedal block 27 on the basis, so that the function separation operation is facilitated, and confusion is avoided.
The working principle of the application is as follows:
in the initial state, as shown in fig. 3, because torsion springs are installed at the rotating connection positions of the six baffles 11 and the six through grooves 10, the six baffles 11 are in a vertical state, and the torsion springs are not stressed at the moment. The cambered surfaces 12 at the bottoms of the six baffles 11 are in one-to-one correspondence with the six arc limiting blocks 14 and are in sliding contact with each other. The ratchet 15 is now at the same level as the pawl 16, and the rotating plate 13 can only rotate clockwise under the limit of the ratchet 15 and the pawl 16.
In use, as shown in fig. 1, a patient lies on the lying plate 2, the head is placed on the head support plate 3, the buttocks are seated on the buttocks support plate 5, and the head position of the patient is adjusted by adjusting the angle of the head support plate 3; by the movement of the two splints 4, to clamp and fix the head of the patient; the cylinder 6 works to adjust the angle of the hip-rest plate 5. The gravity action of patient can make the bottom of U type frame 7 have the trend of sliding left on the mount pad, and U type frame 7 exerts the thrust left to the top of baffle 11, makes baffle 11 have the trend of anticlockwise rotation (fig. 2), but the bottom of baffle 11 is stopped by arc stopper 14 and can not anticlockwise rotation this moment, so the position state of baffle 11 can not change, and then stops U type frame 7 to slide left at the top of mount pad 8, and the angle of service creeper 2 just can not change like this.
When the angle of the lying plate 2 needs to be adjusted, the foot is stepped on the pedal block 27, as shown in fig. 7, the foot presses the pedal block 27 downwards with force, the pedal block 27 drives the connecting block 28 to move downwards, the connecting block 28 pushes the rack 23 to slide in a translational manner, the rack 23 is meshed with the gear 22, the gear 22 can drive the rectangular rod 17 to rotate together through the one-way bearing 21, the rectangular rod 17 rotates through the sleeve 18 and the rotating seat 19, the rotating seat 19 rotates to enable the torsion spring at the rotating joint of the rotating seat 19 and the mounting seat 8 to bear force, the rectangular rod 17 drives the rotating plate 13 to rotate clockwise (fig. 3), and the rotating plate 13 drives the six arc limiting blocks 14 to rotate.
When the top surface of the pedal block 27 is flush with the top surface of the mounting seat 8, the sole is blocked by the mounting seat 8, and the pedal block 27 cannot continuously move downwards, at this time, the pedal block 27 is just in contact with the sliding block 26, and the rotating plate 13 is just rotated clockwise by 25 degrees, that is, the rightmost arc-shaped limiting block 14 is not in contact with the rightmost baffle 11 any more, but the other baffles 11 are still in contact with the arc-shaped limiting block 14, so that the bottom end of the rightmost baffle 11 is not blocked by the arc-shaped limiting block 14, and the U-shaped frame 7 can move leftwards, the U-shaped frame 7 pushes the rightmost baffle 11 to rotate anticlockwise, and when the baffle 11 rotates to the horizontal position, the U-shaped frame 7 passes over the rightmost baffle 11, is in contact with the second baffle 11 and is blocked, and cannot continuously move leftwards, and after the rightmost baffle 11 is not in contact with the U-shaped frame 7 any more, the baffle 11 is rotated to the vertical state under the action of the torsion spring.
After the foot is removed from the pedal block 27, the pedal block 27 moves upwards to reset under the elastic action of the third spring 29, meanwhile, the rack 23 also resets under the elastic action of the second spring 24, namely, the rack 23 moves leftwards (fig. 5), the rack 23 drives the gear 22 to rotate anticlockwise, because of the arrangement of the unidirectional bearing 21, the gear 22 does not drive the rectangular rod 17 to rotate anticlockwise together when rotating anticlockwise, but under the action of the torsion spring at the rotating joint of the rotating seat 19 and the mounting seat 8, the rotating seat 19, the sleeve 18, the rectangular rod 17 and the rotating plate 13 have a tendency to rotate anticlockwise, but under the limit of the ratchet 15 and the pawl 16, the rotating seat 19, the sleeve 18, the rectangular rod 17 and the rotating plate 13 cannot rotate anticlockwise, so that the rotating seat 19, the sleeve 18, the rectangular rod 17 and the rotating plate 13 are in a static state in the resetting process of the rack 23. Therefore, when the pedal block 27 is stepped on once, one baffle plate 11 is not limited by the corresponding arc limiting block 14, the bottom end of the U-shaped frame 7 moves leftwards by a certain distance to the position of the next baffle plate 11, and the purpose of adjusting the inclination angle of the lying plate 2 according to the gear is achieved.
If the tilting angle of the lying plate 2 needs to be quickly adjusted, or the U-shaped frame 7 needs to be moved rightwards to the initial position to be limited. The foot is put on the foot block 27, as shown in fig. 7, the foot presses the foot block 27 downward to move downward, and when the top surface of the foot block 27 is flush with the top surface of the mounting seat 8, the sole is blocked by the mounting seat 8 from moving downward. At this time, the foot is rotated about the top edge of the sliding groove where the foot block 27 is located, and the foot tip continues to push down the foot block 27. In the process that the pedal block 27 and the connecting block 28 continue to move downwards, the end part of the rack 23 moves along the plane of the side surface of the connecting block 28, namely, in the process, the connecting block 28 moves downwards and does not push the rack 23 to move further, the bottom end of the pedal block 27 pushes the sliding block 26 to move downwards, the sliding block 26 pulls the rectangular rod 17 to move downwards through the traction rope 25, the rectangular rod 17 drives the gear 22 and the rotating plate 13 to move downwards, the baffle 11 is further prevented from being contacted with the arc-shaped limiting block 14, the ratchet 15 is no longer positioned on the same horizontal plane with the pawl 16, and the gear 22 is disengaged from the rack 23.
At this time, the rotating plate 13 is no longer limited by the ratchet 15 and the pawl 16, so that the rotating seat 19, the sleeve 18, the rectangular rod 17 and the rotating plate 13 can rotate counterclockwise to an initial position state under the action of the torsion spring at the rotating joint of the rotating seat 19 and the mounting seat 8. At this time, the six baffles 11 are not limited by the arc limiting blocks 14, and the bottom of the U-shaped frame 7 can be quickly moved to a proper position. Then the foot is moved away from the pedal block 27, the pedal block 27 moves upwards to reset under the elastic action of the third spring 29, so that the sliding block 26 is not pressed downwards by the pedal block 27, the rectangular rod 17 is pushed to move upwards to reset under the elastic action of the first spring 20, the rectangular rod 17 pulls the sliding block 26 to move upwards to reset through the traction rope 25, then the six arc limiting blocks 14 are contacted with the six baffles 11 again, the ratchet 15 moves to the same horizontal plane with the pawl 16, the gear 22 and the rack 23 are restored to the meshed state, the six baffles 11 are all in the limited state, and the U-shaped frame 7 is blocked by the baffles 11 and cannot move.
Claims (10)
1. The utility model provides a medical chair for ophthalmic surgery that correction was adjusted to head, includes base (1) and seat body, and seat body's bottom is articulated with base (1), and seat body's downside movable assembly U type frame (7) set up the adjusting device who is used for adjusting seat body's inclination on base (1), a serial communication port, adjusting device includes:
the mounting seat (8) is arranged on the base (1) and is internally provided with a cavity, a plurality of through grooves (10) are uniformly formed in the top of the mounting seat (8) in a penetrating way along the radial direction, and a baffle (11) is rotationally assembled in the through grooves (10) through torsion springs;
the rotating plate (13) is arranged in the mounting seat (8) in a rotating mode along the horizontal direction, a plurality of arc limiting blocks (14) are uniformly arranged on the top of the rotating plate (13) along the radial direction, the arc limiting blocks (14) are abutted with the lower portion of the baffle plate (11), and the upper portion of the baffle plate (11) is abutted with the U-shaped frame (7) to limit the U-shaped frame (7);
the pedal block (27) is arranged on the mounting seat (8) in a sliding manner along the vertical direction, a third spring (29) for resetting the pedal block (27) is arranged between the pedal block (27) and the mounting seat (8), the pedal block (27) drives the rotating plate (13) to rotate through the transmission mechanism, and then the arc limiting blocks (14) are sequentially separated from the corresponding baffle plates (11).
2. The medical chair for ophthalmic surgery for head adjustment and correction according to claim 1, characterized in that the ratchet wheel (15) is fixedly sleeved on the outer circumferential side wall of the rotating plate (13), and a pawl (16) matched with the ratchet wheel (15) is assembled on the inner side wall of the mounting seat (8) through a torsion spring; the rotating plate (13) is rotationally connected with the mounting seat (8) through a rotating seat (19); the transmission mechanism comprises:
the gear (22) is rotationally sleeved on the outer circumferential side wall of the rotating seat (19) through a one-way bearing (21);
a rack (23) which is arranged to penetrate through the side wall of the mounting seat (8) in a sliding manner along the horizontal direction, wherein the rack (23) is meshed with the gear (22), and a second spring (24) for resetting the rack (23) is arranged between the rack (23) and the inner side wall of the mounting seat (8);
the end parts of the pedal blocks (27) close to the racks (23) are provided with inclined planes, and the two inclined planes are matched; the user steps on the pedal block (27) to enable the pedal block to slide downwards, the two inclined planes are abutted and slide relatively, the rack (23) is pushed to slide along the horizontal direction, the driving gear (22) drives the rotating seat (19) and the rotating plate (13) to rotate, one arc-shaped limiting block (14) is separated from the corresponding baffle plate (11), and the U-shaped frame (7) slides to the next baffle plate (11); the user releases the foot, the third spring (29) pushes the pedal block (27) upwards to reset, the second spring (24) pulls the rack (23) to slide reversely to reset, the gear (22) rotates reversely, and the rotating plate (13) does not rotate under the cooperation of the ratchet wheel (15) and the pawl (16).
3. The medical chair for the eye surgery for head adjustment and correction according to claim 2, characterized in that a torsion spring is arranged between the rotating seat (19) and the mounting seat (8), a sleeve (18) is arranged on the rotating seat (19) along the vertical direction, a rectangular rod (17) is sleeved in the sleeve (18) in a sliding manner, the top of the rectangular rod (17) is connected with the rotating plate (13), a gear (22) is sleeved on the rectangular rod (17) in a rotating manner through a one-way bearing (21), a first spring (20) is arranged in the sleeve (18) along the vertical direction, the upper end and the lower end of the first spring (20) are respectively abutted to the bottom of the rectangular rod (17) and the top of the rotating seat (19), and the pedal block (27) is in transmission connection with the rectangular rod (17) through a transmission assembly so as to drive the rectangular rod (17) to slide downwards, and further enable the arc-shaped limiting block (14) to be completely separated from the baffle plate (11).
4. A medical chair for ophthalmic surgery for head adjustment and correction according to claim 3, characterized in that the transmission assembly comprises a sliding block (26) which is arranged on the mounting seat (8) in a sliding way along the vertical direction and is matched with the pedal block (27), a traction channel which is arranged on the mounting seat (8), and a traction rope (25) which is movably arranged in the traction channel and is respectively connected with the sliding block (26) and the rectangular rod (17) at two ends; the pedal block (27) pushes the sliding block (26) downwards and pulls the rectangular rod (17) to slide downwards through the traction rope (25).
5. The medical chair for ophthalmic surgery for head adjustment correction according to claim 4, characterized in that the height of the rack (23) is higher than the height of the slide (26).
6. The medical chair for ophthalmic surgery for head adjustment and correction according to claim 4, characterized in that the foot block (27) slides down until its top is at the same level as the top of the mounting seat (8), the foot block (27) being in contact with the sliding block (26).
7. The medical chair for ophthalmic surgery for head adjustment and correction according to claim 1, characterized in that the side wall of the baffle (11) abutting against the arc-shaped limiting block (14) is provided with an arc surface (12) matched with the bending radian of the arc-shaped limiting block (14).
8. The medical chair for ophthalmic surgery for head adjustment and correction according to claim 1, characterized in that the top of the mounting seat (8) is fixedly provided with a U-shaped plate (9) at a position corresponding to the through groove (10), and the U-shaped plate (9) is used for preventing the U-shaped frame (7) from being separated from the top of the mounting seat (8).
9. The medical chair for ophthalmic surgery for head adjustment correction according to any one of claims 1-8, characterized in that the chair body comprises a lying plate (2), a hip-rest plate (5) and a head support plate (3), the bottom end of the lying plate (2) is hinged with the base (1), the hip-rest plate (5) is arranged on the upper side of the lying plate (2) in a reversible manner, and the head support plate (3) is arranged on the top end of the lying plate (2) in a reversible manner.
10. The medical chair for ophthalmic surgery for head adjustment and correction according to claim 9, characterized in that the upper side of the head support plate (3) is provided with a clamping mechanism for fixing the head of the patient, and the clamping mechanism comprises two clamping plates (4) arranged on the head support plate (3) in a sliding manner, and an electric sliding rail for driving the two clamping plates (4) to approach/separate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311154972.1A CN116869767B (en) | 2023-09-08 | 2023-09-08 | Medical chair for eye surgery for head adjustment and correction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311154972.1A CN116869767B (en) | 2023-09-08 | 2023-09-08 | Medical chair for eye surgery for head adjustment and correction |
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| Publication Number | Publication Date |
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| CN116869767A true CN116869767A (en) | 2023-10-13 |
| CN116869767B CN116869767B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311154972.1A Active CN116869767B (en) | 2023-09-08 | 2023-09-08 | Medical chair for eye surgery for head adjustment and correction |
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| CN116869767B (en) | 2023-11-24 |
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