Beach chair position operating bed specially used for shoulder joint surgery

Abstract

Beach chair position operating table dedicated for shoulder joint surgery, comprising a base, four universal wheels are arranged at the bottom of the base, the upper surface of the base is connected with a hip seat plate through two groups of lifting hydraulic cylinders, the two groups of lifting hydraulic cylinders are arranged side by side front and back, an outer box body is fixed on the upper surface of the base, the two groups of lifting hydraulic cylinders are located inside the outer box body, and the top of the outer box body is connected with the bottom surface of the hip seat plate through a telescopic sleeve; In summary, the present invention can change the body position support of the operating table according to the situation to meet the surgical needs. The hip seat plate, backrest plate, axilla support, arm support plate, leg support plate and foot support plate can be adjusted at multiple angles, and the use is flexible and convenient. The overall structure is reasonably designed, providing convenience for arthroscopic shoulder surgery.

Description

Technical Field

[0001] The present invention belongs to the field of medical technology, and particularly relates to an operating table in a beach chair position dedicated to shoulder joint surgery. Background Art

[0002] Due to the special anatomical structure of the shoulder joint, patients with shoulder arthritis, biceps brachii rupture, osteoarthritis, etc. usually need to adopt the beach position during arthroscopic shoulder surgery. The beach position, namely the beach chair position, is a supine position with the upper body higher than the operating table plane. Generally, the human torso is lifted to form a certain angle with the lower limbs, the hip is flexed by 90 - 110 degrees, and the knee joint is flexed by 20 - 30 degrees, so that the buttocks are at the lowest point; this position first appeared in the surgical procedures of the AO school (an academic organization researching internal fixation of fractures). The concept of the AO school has been widely communicated, and the "beach position" is also widely used during surgery. It is found that using the "beach position" in orthopedic arthroscopic shoulder surgery is convenient for exposing the surgical field and moving the affected limb during the operation.

[0003] The existing position holders commonly used in arthroscopic shoulder surgery only rely on the support frame to traction the upper limb of the patient, and the adjustment of the beach position also depends on the adjustable hospital bed for assistance, but using the hospital bed for assistance makes it inconvenient for medical staff to operate. Therefore, there is an urgent need for an operating table that is convenient to adjust the beach position and is convenient for medical staff to perform arthroscopic shoulder surgery. Summary of the Invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides an operating table in a beach chair position dedicated to shoulder joint surgery that is convenient for doctors to adjust the beach chair position.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: An operating table in a beach chair position dedicated to shoulder joint surgery includes a base. Four universal wheels are provided at the bottom of the base. The upper surface of the base is connected with a hip seat plate through two groups of lifting hydraulic cylinders. The two groups of lifting hydraulic cylinders are arranged side by side front and back. An outer box body is fixed on the upper surface of the base. The two groups of lifting hydraulic cylinders are located inside the outer box body. The top of the outer box body is connected with the bottom surface of the hip seat plate through a telescopic sleeve. The front part of the hip seat plate is connected with a backrest plate through a first angle adjustment component. The first angle adjustment component can adjust the angle between the hip seat plate and the backrest plate. The outer shape of the backrest plate is T-shaped. Two shoulder plates are provided on the backrest plate. The two shoulder plates are symmetrically arranged left and right. The lower end of each shoulder plate is hinged to the backrest plate through a pin shaft. The upper end back of each shoulder plate is hinged with a movable bolt. Two card sleeves are fixed on the upper end back of the backrest plate. The movable bolts on the backs of the two shoulder plates correspond to the two card sleeves respectively. The movable bolt can rotate around the hinge point into the card sleeve.

[0006] The upper part of the backrest board is connected with a headrest component through a connecting piece. The headrest component includes a rear headrest. The left and right sides of the rear headrest are respectively connected with temporal side plates. A forehead strap is connected to one of the temporal side plates, and the end of the forehead strap is connected to the other temporal side plate through a magic tape. A mandibular strap is connected between the two temporal side plates;

[0007] The rear part of the hip seat board is connected with a leg support board through a second angle adjustment component; the left and right sides of the outer box body are respectively connected with arm support boards through lifting components. The lifting components are used to adjust the height of the arm support boards, and two arm straps are connected to the arm support boards;

[0008] Sponge soft pads are arranged on the hip seat board, backrest board, shoulder board, rear headrest, temporal side plates, leg support board and arm support board.

[0009] A lumbar pillow soft pad is provided on the upper surface of the backrest board.

[0010] The first angle adjustment component includes a reduction motor and a rotating shaft. The reduction motor is installed on the front bottom surface of the hip seat board. A first gear is installed on the main shaft of the reduction motor. The two ends of the rotating shaft are rotatably installed on the front bottom surface of the hip seat board. The length of the rotating shaft is equal to the width of the hip seat board. A second gear is fixed in the middle of the rotating shaft. The first gear meshes with the second gear. The two ends of the rotating shaft are respectively connected with the rear bottom surface of the backrest board through a set of hinge pieces. The hinge pieces include a vertical rod and an arc rod. The vertical rod is fixedly connected with the arc rod. The end of the vertical rod is fixed at the end of the rotating shaft. The end of the arc rod is fixed at the rear bottom surface of the backrest board;

[0011] The second angle adjustment component has the same structure as the first angle adjustment component. The reduction motor of the second angle adjustment component is installed on the rear bottom surface of the hip seat board.

[0012] The connecting piece includes a mounting sleeve. The mounting sleeve is vertically fixed on the front bottom surface of the backrest board. A jack is opened on the mounting sleeve. The jack is arranged along the radial direction of the mounting sleeve. A vertical square tube is inserted into the jack. The mounting sleeve has an internal thread. A first handle bolt is threadedly connected to the mounting sleeve. The inner end of the first handle bolt is in pressing contact with the vertical square tube;

[0013] The upper end of the vertical square tube is connected with a connecting rod through a second handle bolt and a nut. The end of the connecting rod is connected with the rear headrest through a ball hinge.

[0014] The lifting assembly includes a lifting rod, a first electric cylinder, and a second electric cylinder. The lifting rod is composed of a straight rod portion and an arc rod portion. The lifting rod is hinged to the outer box body through a short shaft, and the short shaft is arranged at the connection of the straight rod portion and the arc rod portion. The upper end of the straight rod portion is hinged to the bottom surface of the arm support plate. The cylinder end of the first electric cylinder is hinged to the outer box body, and the push rod end of the first electric cylinder is hinged to the end of the arc rod portion. A first storage groove is formed on the upper surface of the straight rod portion. The cylinder end of the second electric cylinder is hinged in the first storage groove, and the push rod end of the second electric cylinder is hinged to the bottom surface of the arm support plate.

[0015] A foot support plate is arranged on the leg support plate, and the foot support plate is perpendicular to the leg support plate.

[0016] A second storage groove is formed on the leg support plate, and the foot support plate is located in the second storage groove. The foot support plate is adapted to the second storage groove, and a rack is arranged on the back surface of the foot support plate; An installation cavity is arranged in the leg support plate, and a first installation shaft, a second installation shaft, and a third installation shaft are rotatably installed in the installation cavity. A third gear is installed on the first installation shaft, a fourth gear is installed on the second installation shaft, and a fifth gear is installed on the third installation shaft. The fourth gear meshes with the third gear and the fifth gear respectively, and the fifth gear meshes with the rack. The first installation shaft penetrates out of the leg support plate outward, and a handwheel is installed at the end of the first installation shaft;

[0017] A limiting member is further arranged on the leg support plate. The limiting member includes a limiting rod and two circular hole plates. The two circular hole plates are fixed on the leg support plate. The limiting rod passes through the two circular hole plates. A retaining ring is fixed on the limiting rod, and the retaining ring is located between the two circular hole plates. A first compression spring is sleeved on the limiting rod. An operating handle is arranged at one end of the limiting rod, and the other end of the limiting rod presses against the tooth groove of the rack under the elastic force of the first compression spring.

[0018] Two fixing sleeves are fixed on the back surface of the backrest plate. The two fixing sleeves are arranged side by side left and right. A square tube passes through the two fixing sleeves. One end of the square tube is connected with an armpit support through a third angle adjustment assembly, and the third angle adjustment assembly is used to adjust the included angle between the armpit support and the horizontal plane. A top pressure bolt is threadedly connected to each fixing sleeve, and the end of the top pressure bolt is in top pressure cooperation with the square tube.

[0019] The third angle adjustment component includes a mounting post and a mounting plate. The mounting plate is fixed to the rear end face of the armpit support. A ratchet ring is provided on the mounting plate. The mounting post is fixed to the end of the square tube. Two slots are provided in the mounting post, and the two slots are arranged oppositely. A ratchet is correspondingly inserted into each slot. Two long holes are provided on the end face of the mounting post, and the two long holes are correspondingly communicated with the two slots. A short rod is fixed to each ratchet. The short rod passes through the long hole. A connecting rod is connected to each short rod. A pinch handle is fixed to the end of the connecting rod. A circular hole is provided on the pinch handle. A guide rod is inserted between the two pinch handles. Limit heads are provided at both ends of the guide rod. The guide rod passes through the circular hole of the pinch handle. A second compression spring is sleeved on the guide rod;

[0020] The said mounting post is inserted into the ratchet ring of the mounting plate, and the two ratchets are correspondingly stuck in the ratchet ring.

[0021] Adopting the above technical solution, the present invention has the following beneficial effects:

[0022] (1) By operating the two groups of lifting hydraulic cylinders, the first angle adjustment component and the second angle adjustment component, the leg support plate, the hip seat plate and the backrest plate reach the surgical beach chair position for arthroscopic shoulder surgery. The first angle adjustment component is used to connect the hip seat plate and the backrest plate, and the inclination of the backrest plate can be adjusted by relying on the first angle adjustment component. The second angle adjustment component is used to connect the hip seat plate and the leg support plate, and the inclination of the leg support plate can be adjusted by relying on the second angle adjustment component; the overall structure is reasonably designed and convenient to adjust;

[0023] (2) To prevent the patient's waist from hanging in the air when in the beach chair position, a lumbar pillow soft pad is also provided on the upper surface of the backrest plate to support and protect the patient's waist;

[0024] (3) To enable the headrest to better provide support and fixation for the patient's head, the present invention provides a connecting piece that can adjust the height and inclination of the headrest;

[0025] (4) When not in use, the two arm support plates of the present invention are in a lower position and can be raised by the lifting component when needed;

[0026] (5) To prevent the patient's body from sliding and moving and to provide support for the patient's feet during the operation, a foot support plate is provided on the leg support plate in this embodiment;

[0027] (6) The present invention also designs an armpit support to support the armpit of the patient during the operation, and the support angle of the armpit support can be adjusted by the third angle adjustment component;

[0028] In summary, the present invention can change the body position support of the operating table according to the situation to meet the surgical needs. The hip seat plate, backrest plate, axilla support, arm support plate, leg support plate, and foot support plate can be adjusted at multiple angles, which is flexible and convenient to use. The overall structure is reasonably designed, providing convenience for arthroscopic shoulder surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of the present invention;

[0030] Figure 2 is Figure 1 the enlarged view at A in

[0031] Figure 3 is a schematic connection diagram of the hip seat plate, backrest plate, and leg support plate;

[0032] Figure 4 is Figure 3 the enlarged view at B in

[0033] Figure 5 is a schematic installation diagram of the third gear, fourth gear, fifth gear, and foot support plate;

[0034] Figure 6 is Figure 5 the enlarged view at C in

[0035] Figure 7 is a schematic structural diagram of the third angle adjustment assembly;

[0036] Figure 8 is a schematic structural diagram of the mounting plate;

[0037] Figure 9 is an end view of the mounting post;

[0038] Figure 10 is an end view of the mounting post with the connecting rod removed;

[0039] Figure 11 is a cross-sectional view of the mounting post. DETAILED DESCRIPTION OF THE INVENTION

[0040] As Figure 1-11As shown in the figure, the beach chair position operating bed for shoulder joint surgery of the present invention includes a base 1. Four universal wheels 2 are provided at the bottom of the base 1, and the universal wheels 2 facilitate the use of the moving device. The upper surface of the base 1 is connected to a hip seat plate 4 through two groups of lifting hydraulic cylinders 3. The two groups of lifting hydraulic cylinders 3 are arranged side by side front and back. An outer box body 5 is fixed on the upper surface of the base 1, and the two groups of lifting hydraulic cylinders 3 are located inside the outer box body 5. The top of the outer box body 5 is connected to the bottom surface of the hip seat plate 4 through a telescopic sleeve 6; the hip seat plate 4 is used to support the patient's buttocks and thighs. The two groups of lifting hydraulic cylinders 3 work synchronously to complete the raising and lowering actions of the hip seat plate 4. When one group of lifting hydraulic cylinders 3 works, the tilting adjustment of the hip seat plate 4 is completed, and finally the patient's buttocks and thighs reach the appropriate surgical position;

[0041] The front part of the hip seat plate 4 is connected to a backrest plate 7 through a first angle adjustment component. The first angle adjustment component can adjust the angle between the hip seat plate 4 and the backrest plate 7. The first angle adjustment component is used to connect the hip seat plate 4 and the backrest plate 7 on the one hand, and to adjust the tilting angle of the backrest plate 7 on the other hand; the backrest plate 7 is in the shape of a T. Two shoulder plates 8 are provided on the backrest plate 7. The two shoulder plates 8 are symmetrically arranged left and right. The lower end of each shoulder plate 8 is hinged to the backrest plate 7 through a pin shaft 9. The upper end back surface of each shoulder plate 8 is hinged with a movable bolt 10. Two card sleeves 11 are fixed on the upper end back surface of the backrest plate 7. The movable bolts 10 on the back surfaces of the two shoulder plates 8 correspond to the two card sleeves 11 respectively, and the movable bolt 10 can rotate around the hinge point into the card sleeve 11; for example, when performing surgery on the patient's left shoulder, the left shoulder plate 8 is lowered around the pin shaft 9, and the right shoulder plate 8 is fixed to the backrest plate 7 through the cooperation of the movable bolt 10 and the card sleeve 11, and the right shoulder plate 8 plays a supporting role for the patient's right shoulder;

[0042] The upper part of the backrest plate 7 is connected to a headrest component through a connecting piece. The headrest component includes a posterior brain support 12. The left and right sides of the posterior brain support 12 are respectively connected to temporal side plates 13. A forehead strap 14 is connected to one of the temporal side plates 13. The end of the forehead strap 14 is connected to the other temporal side plate 13 through a magic tape. A mandibular strap 15 is connected between the two temporal side plates 13; during use, the patient's head is placed on the posterior brain support 12, the temporal side plates 13 are closely attached to the patient's temples, and then the patient's head is fixed with the forehead strap 14, and the mandibular strap 15 fixes the patient's mandibular part; the headrest component is used to support the patient's head to avoid fatigue damage to the patient's cervical spine caused by long-term surgery, and the forehead strap 14 and the mandibular strap 15 are used to limit the patient's forehead and mandibular parts to avoid the patient's head swaying left and right during the operation;

[0043] The rear part of the hip seat plate 4 is connected with a leg support plate 17 through a second angle adjustment component 16. The second angle adjustment component 16 is used for connecting the hip seat plate 4 and the leg support plate 17 on the one hand, and for adjusting the inclination angle of the leg support plate 17 on the other hand; the left and right sides of the outer box body 5 are respectively connected with an arm support plate 18 through a lifting component. The arm support plate 18 is used for supporting the patient's arms, and the lifting component is used for adjusting the height of the arm support plate 18 to reach the optimal support height. Two arm straps 19 are connected to the arm support plate 18;

[0044] By operating two groups of lifting hydraulic cylinders 3, the first angle adjustment component and the second angle adjustment component 16, the leg support plate 17, the hip seat plate 4 and the backrest plate 7 are adjusted to the surgical beach chair position for arthroscopic shoulder surgery;

[0045] Sponge cushions are provided on the hip seat plate 4, the backrest plate 7, the shoulder plate 8, the back of the head support 12, the temporal side plates 13, the leg support plate 17 and the arm support plate 18. The provision of the sponge cushions can increase the comfort of using the device.

[0046] Furthermore, to prevent the patient's waist from hanging in the beach chair position, the present invention also provides a lumbar pillow cushion 20 on the upper surface of the backrest plate 7 to support and protect the patient's waist and prevent it from being damaged.

[0047] Furthermore, to achieve the function of connecting the first angle adjustment component and adjusting the inclination angle of the backrest plate 7, the first angle adjustment component of this embodiment includes a reduction motor 21 and a rotating shaft 22. The reduction motor 21 is installed on the front bottom surface of the hip seat plate 4. A first gear 23 is installed on the main shaft of the reduction motor 21. The two ends of the rotating shaft 22 are rotatably installed on the front bottom surface of the hip seat plate 4. The length of the rotating shaft 22 is equal to the width of the hip seat plate 4. A second gear 24 is fixed in the middle of the rotating shaft 22. The first gear 23 meshes with the second gear 24. The two ends of the rotating shaft 22 are respectively connected to the rear bottom surface of the backrest plate 7 through a set of hinge components. The hinge components include a vertical rod 25 and an arc rod 26. The vertical rod 25 is fixedly connected with the arc rod 26. The end of the vertical rod 25 is fixed to the end of the rotating shaft 22. The end of the arc rod 26 is fixed to the rear bottom surface of the backrest plate 7; by using the cooperation of the hinge components, the rotating shaft 22, the first gear 23 and the second gear 24, the connection between the hip seat plate 4 and the backrest plate 7 is realized, and the reduction motor 21 is started. The reduction motor 21 drives the rotating shaft 22 to rotate through the first gear 23 and the second gear 24, so that the hinge components rotate with the rotating shaft 22, and finally the adjustment of the angle of the backrest plate 7 is realized;

[0048] Similarly, the second angle adjustment component 16 has the same structure as the first angle adjustment component. The reduction motor 21 of the second angle adjustment component 16 is installed on the rear bottom surface of the hip seat plate 4. When the reduction motor 21 is started, it drives the rotation of the hinge member through the first gear 23, the second gear 24, and the rotating shaft 22 to adjust the angle of the leg support plate 17.

[0049] Further, the connecting member includes an installation sleeve 27. The installation sleeve 27 is vertically fixed on the front bottom surface of the backrest plate 7. A jack is provided on the installation sleeve 27. The jack is arranged along the radial direction of the installation sleeve 27. A vertical square tube 28 is inserted into the jack. The installation sleeve 27 has internal threads, and a first handle bolt 29 is threadedly connected to the installation sleeve 27. The inner end of the first handle bolt 29 is in pressing contact with the vertical square tube 28. The upper end of the vertical square tube 28 is connected to a connecting rod 32 through a second handle bolt 30 and a nut 31. The end of the connecting rod 32 is connected to the back of the head support 12 through a ball hinge 33. By using the cooperation of the first handle bolt 29, the installation sleeve 27, and the jack, the raising and lowering actions of the vertical square tube 28 can be realized, and finally the height of the back of the head support 12 can be adjusted to support the back of the patient's head. In addition, by using the cooperation of the second handle bolt 30 and the nut 31, the inclination angle of the connecting rod 32 can be adjusted to change the inclination angle of the back of the head support 12. The back of the head support 12 is connected to the connecting rod 32 through a ball hinge 33. When the back of the patient's head is supported on the back of the head support 12, the ball hinge 33 can be adjusted according to the situation to achieve the best comfortable support.

[0050] Further, to realize the height adjustment of the arm support plate 18, the lifting component of this embodiment includes a lifting rod, a first electric cylinder 34, and a second electric cylinder 35. The lifting rod is composed of a straight rod portion 36 and an arc rod portion 37. The lifting rod is hinged to the outer box body 5 through a short shaft 38. The short shaft 38 is arranged at the connection of the straight rod portion 36 and the arc rod portion 37. The upper end of the straight rod portion 36 is hinged to the bottom surface of the arm support plate 18. The cylinder end of the first electric cylinder 34 is hinged to the outer box body 5, and the push rod end of the first electric cylinder 34 is hinged to the end of the arc rod portion 37. A first storage groove 39 is provided on the upper surface of the straight rod portion 36. The cylinder end of the second electric cylinder 35 is hinged in the first storage groove 39, and the push rod end of the second electric cylinder 35 is hinged to the bottom surface of the arm support plate 18. In the initial state, the push rod portion of the first electric cylinder 34 extends, the push rod portion of the second electric cylinder 35 contracts, and the second electric cylinder 35 is located in the first storage groove 39. The arm support plate 18 is lower than the hip seat plate 4. When it is necessary to raise the arm support plate 18 for use, the push rod portion of the first electric cylinder 34 contracts, pulling the arc rod portion 37, so that the lifting rod rotates around the short shaft 38, and the arm support plate 18 rises. Then, the second electric cylinder 35 is started, and the push rod portion of the second electric cylinder 35 extends to jack up the arm support plate 18 until the arm support plate 18 reaches the best supporting angle for the arm, and then the second electric cylinder 35 is stopped.

[0051] Furthermore, to prevent the patient's body from sliding down during the operation, the patient's feet are supported. In this embodiment, a foot support plate 40 is provided on the leg support plate 17, and the foot support plate 40 is arranged perpendicular to the leg support plate 17.

[0052] Furthermore, in this embodiment, the foot support plate 40 can be stored in the leg support plate 17 when not in use. The specific structure is as follows: a second storage groove 41 is formed on the leg support plate 17, the foot support plate 40 is located in the second storage groove 41, the foot support plate 40 is adapted to the second storage groove 41, and a rack 42 is arranged on the back surface of the foot support plate 40; an installation cavity is arranged in the leg support plate 17, a first installation shaft, a second installation shaft and a third installation shaft are rotatably installed in the installation cavity, a third gear 43 is installed on the first installation shaft, a fourth gear 44 is installed on the second installation shaft, a fifth gear 45 is installed on the third installation shaft, the fourth gear 44 is respectively engaged with the third gear 43 and the fifth gear 45, the fifth gear 45 is engaged with the rack 42, the first installation shaft penetrates out of the leg support plate 17, and a handwheel 46 is installed at the end of the first installation shaft;

[0053] A limiting member is further arranged on the leg support plate 17. The limiting member includes a limiting rod 47 and two circular hole plates 48. The two circular hole plates 48 are fixed on the leg support plate 17. The limiting rod 47 passes through the two circular hole plates 48. A retaining ring 49 is fixed on the limiting rod 47. The retaining ring 49 is located between the two circular hole plates 48. A first compression spring 50 is sleeved on the limiting rod 47. An operating handle 51 is arranged at one end of the limiting rod 47. The other end of the limiting rod 47 is pressed against the tooth groove of the rack 42 under the elastic force of the first compression spring 50; the limiting rod 47 is used to limit the rack 42. When it is necessary to raise the foot support plate 40, pull the operating handle 51 backward to release the restriction of the limiting rod 47 on the rack 42, rotate the handwheel 46, drive the rack 42 on the back surface of the foot support plate 40 to move upward through the transmission of the third gear 43, the fourth gear 44 and the fifth gear 45, so as to raise the foot support plate 40. Finally, release the operating handle 51. Under the elastic force of the first compression spring 50, the limiting rod 47 is inserted into the tooth groove of the rack 42 again to limit the movement of the rack 42; when the foot support plate 40 is not in use, rotate the handwheel 46 in the reverse direction, and the foot support plate 40 can be retracted into the second storage groove 41, which is convenient to use.

[0054] Further, this embodiment provides an axilla support 52 for supporting the axilla of a patient during surgery. Two fixing sleeves 53 are fixed to the back surface of the backrest plate 7. The two fixing sleeves 53 are arranged side by side left and right. A square tube 54 is inserted through the two fixing sleeves 53. One end of the square tube 54 is connected to the axilla support 52 through a third angle adjustment assembly 55. The third angle adjustment assembly 55 is used to adjust the angle between the axilla support 52 and the horizontal plane. A pressing bolt 56 is threadedly connected to each fixing sleeve 53. The end of the pressing bolt 56 is in pressing cooperation with the square tube 54. The square tube 54 is fixed to the two fixing sleeves 53 on the back surface of the backrest plate 7. The axilla support 52 is installed at one end of the square tube 54 through the third angle adjustment assembly 55. The third angle adjustment assembly 55 plays a role in connection and angle adjustment.

[0055] Further, to realize the installation of the axilla support 52 and the square tube 54, and the adjustment of the support angle of the axilla support 52, the third angle adjustment assembly 55 is designed. The third angle adjustment assembly 55 includes a mounting post 57 and a mounting plate 58. The mounting plate 58 is fixed to the rear end surface of the axilla support 52. A ratchet ring 59 is formed on the mounting plate 58. The mounting post 57 is fixed to the end of the square tube 54. Two slots 60 are formed in the mounting post 57. The two slots 60 are arranged oppositely. A ratchet 61 is correspondingly inserted into each slot 60. Two long holes 62 are formed in the end surface of the mounting post 57. The two long holes 62 are respectively in corresponding communication with the two slots 60. A short rod 63 is fixed to each ratchet 61. The short rod 63 passes through the long hole 62. A connecting rod 64 is connected to each short rod 63. A pinch handle 65 is fixed to the end of the connecting rod 64. A round hole is formed in the pinch handle 65. A guide rod 66 is inserted through the two pinch handles 65. Limiting heads 67 are arranged at both ends of the guide rod 66. The guide rod 66 passes through the round hole of the pinch handle 65. A second compression spring 68 is sleeved on the guide rod 66. The mounting post 57 is inserted into the ratchet ring 59 of the mounting plate 58, and the two ratchets 61 are correspondingly stuck in the ratchet ring 59. During use, the axilla support 52 is installed on the mounting post 57 through the mounting plate 58. The mounting post 57 is fixed to the end of the square tube 54. Due to the cooperation between the ratchet 61 and the ratchet ring 59, when the axilla support 52 is rotated upward, the ratchet 61 does not restrict the ratchet ring 59 of the mounting plate 58. When the axilla support 52 is pressed downward, the ratchet 61 restricts the ratchet ring 59 of the mounting plate 58. Finally, the axilla support 52 can be freely lifted upward and cannot be rotated downward to support the axilla of the patient. When it is necessary to rotate the axilla support 52 downward, it is necessary to manually release the restriction of the ratchet 61 on the ratchet ring 59 of the mounting plate 58, that is, press the two pinch handles 65 toward the middle. The two pinch handles 65 pull the two ratchets 61 through the connecting rods 64. The ratchets 61 retract into the slots 60, and then the axilla support 52 can be rotated downward. After releasing the two pinch handles 65, under the action of the second compression spring 68, the pinch handles 65 and the connecting rods 64 return to their positions, and the ratchets 61 are reset and stuck in the ratchet ring 59.

[0056] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the present invention. Any simple modifications, equivalent changes, and decorations made to the above embodiments based on the technical essence of the present invention all fall within the protection scope of the technical solution of the present invention.

Claims

1. The operating table in beach chair position for shoulder joint surgery is characterized in that: It includes a base. Four universal wheels are provided at the bottom of the base. The upper surface of the base is connected to a hip seat plate through two groups of lifting hydraulic cylinders. The two groups of lifting hydraulic cylinders are arranged side by side front and back. An outer box body is fixed on the upper surface of the base. The two groups of lifting hydraulic cylinders are located inside the outer box body. The top of the outer box body is connected to the bottom surface of the hip seat plate through a telescopic sleeve. The front part of the hip seat plate is connected to a backrest plate through a first angle adjustment component. The first angle adjustment component can adjust the angle between the hip seat plate and the backrest plate. The outer shape of the backrest plate is T-shaped. Two shoulder plates are provided on the backrest plate. The two shoulder plates are symmetrically arranged left and right. The lower end of each shoulder plate is hinged to the backrest plate through a pin shaft. The upper end back surface of each shoulder plate is hinged with a movable bolt. Two card sleeves are fixed on the upper end back surface of the backrest plate. The movable bolts on the back surfaces of the two shoulder plates correspond to the two card sleeves respectively. The movable bolt can rotate around the hinge point into the card sleeve; The upper part of the backrest plate is connected to a headrest component through a connecting piece. The headrest component includes a rear headrest. The left and right sides of the rear headrest are respectively connected with temporal side plates. A forehead strap is connected to one of the temporal side plates. The end of the forehead strap is connected to the other temporal side plate through a magic tape. A mandibular strap is connected between the two temporal side plates; The rear part of the hip seat plate is connected to a leg support plate through a second angle adjustment component; the left and right sides of the outer box body are respectively connected with arm support plates through lifting components. The lifting components are used to adjust the height of the arm support plates. Two arm straps are connected to the arm support plates; Sponge cushions are provided on the hip seat plate, the backrest plate, the shoulder plates, the rear headrest, the temporal side plates, the leg support plate and the arm support plates; A lumbar cushion is provided on the upper surface of the backrest plate; Two fixed sleeves are fixed on the back surface of the backrest plate. The two fixed sleeves are arranged side by side left and right. A square tube is inserted into the two fixed sleeves. One end of the square tube is connected to an armpit support through a third angle adjustment component. The third angle adjustment component is used to adjust the included angle between the armpit support and the horizontal plane. A top pressure bolt is threadedly connected to each fixed sleeve. The end of the top pressure bolt is in top pressure cooperation with the square tube; The third angle adjustment component includes a mounting post and a mounting plate. The mounting plate is fixed on the rear end face of the armpit support. A ratchet ring is provided on the mounting plate. The mounting post is fixed on the end of the square tube. Two slots are provided in the mounting post. The two slots are arranged oppositely. Each slot is correspondingly inserted with a ratchet. Two long holes are provided on the end face of the mounting post. The two long holes are respectively corresponding and communicated with the two slots. A short rod is fixed on each ratchet. The short rod passes through the long hole. Each short rod is connected with a connecting rod. The end of the connecting rod is fixed with a pinch handle. A round hole is provided on the pinch handle. A guide rod is inserted between the two pinch handles. Limiting heads are provided at both ends of the guide rod. The guide rod passes through the round hole of the pinch handle. A second compression spring is sleeved on the guide rod; The mounting post is inserted into the ratchet ring of the mounting plate, and the two ratchets are correspondingly clamped in the ratchet ring.

2. The beach chair position operating table for shoulder joint surgery according to claim 1, wherein: The first angle adjustment component includes a reduction motor and a rotating shaft. The reduction motor is installed on the front bottom surface of the hip seat plate. A first gear is installed on the main shaft of the reduction motor. The two ends of the rotating shaft are rotatably installed on the front bottom surface of the hip seat plate. The length of the rotating shaft is equal to the width of the hip seat plate. A second gear is fixed in the middle of the rotating shaft. The first gear meshes with the second gear. The two ends of the rotating shaft are respectively connected to the rear bottom surface of the backrest plate through a set of hinge members. The hinge member includes a vertical rod and an arc rod. The vertical rod is fixedly connected to the arc rod. The end of the vertical rod is fixed to the end of the rotating shaft. The end of the arc rod is fixed to the rear bottom surface of the backrest plate; The second angle adjustment component has the same structure as the first angle adjustment component. The reduction motor of the second angle adjustment component is installed on the rear bottom surface of the hip seat plate.

3. The beach chair position operating table for shoulder joint surgery according to claim 1, characterized in that: The connecting member includes a mounting sleeve. The mounting sleeve is vertically fixed to the front bottom surface of the backrest plate. A jack is opened on the mounting sleeve. The jack is arranged along the radial direction of the mounting sleeve. A vertical square tube is inserted into the jack. The mounting sleeve has internal threads. A first hand-operated bolt is threadedly connected to the mounting sleeve. The inner end of the first hand-operated bolt is in pressing contact with the vertical square tube; The upper end of the vertical square tube is connected to a connecting rod through a second hand-operated bolt and a nut. The end of the connecting rod is connected to the rear headrest through a ball hinge.

4. The beach chair position operating table for shoulder surgery according to claim 1, wherein: The lifting component includes a lifting rod, a first electric cylinder, and a second electric cylinder. The lifting rod is composed of a straight rod portion and an arc rod portion. The lifting rod is hinged to the outer box body through a short shaft. The short shaft is arranged at the connection of the straight rod portion and the arc rod portion. The upper end of the straight rod portion is hinged to the bottom surface of the armrest plate. The cylinder end of the first electric cylinder is hinged to the outer box body. The push rod end of the first electric cylinder is hinged to the end of the arc rod portion. A first receiving groove is opened on the upper surface of the straight rod portion. The cylinder end of the second electric cylinder is hinged in the first receiving groove. The push rod end of the second electric cylinder is hinged to the bottom surface of the armrest plate.

5. The beach chair position operating table for shoulder joint surgery according to claim 1, wherein: A foot support plate is arranged on the leg support plate. The foot support plate is perpendicular to the leg support plate.

6. The beach chair position operating table for shoulder joint surgery according to claim 5, characterized in that: A second receiving groove is opened on the leg support plate. The foot support plate is located in the second receiving groove. The foot support plate is adapted to the second receiving groove. A rack is arranged on the back surface of the foot support plate; An installation cavity is arranged inside the leg support plate. A first installation shaft, a second installation shaft, and a third installation shaft are rotatably installed in the installation cavity. A third gear is installed on the first installation shaft. A fourth gear is installed on the second installation shaft. A fifth gear is installed on the third installation shaft. The fourth gear meshes with the third gear and the fifth gear respectively. The fifth gear meshes with the rack. The first installation shaft extends out of the leg support plate. A handwheel is installed at the end of the first installation shaft; A limiting member is also arranged on the leg support plate. The limiting member includes a limiting rod and two round hole plates. The two round hole plates are fixed to the leg support plate. The limiting rod passes through the two round hole plates. A retaining ring is fixed on the limiting rod. The retaining ring is located between the two round hole plates. A first compression spring is sleeved on the limiting rod. An operating handle is arranged at one end of the limiting rod. The other end of the limiting rod presses against the tooth groove of the rack under the elastic force of the first compression spring.

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