Adjustable lithotomy position bed structure

Abstract

The invention provides an adjustable lithotomy position bed structure which comprises a support, a bed board is arranged at the upper end of the support, two rotary connecting seats are arranged on the lower side of one section of the bed board, the rotary connecting seats are rotationally connected with horizontal rotary seats capable of horizontally rotating, and horizontal rotation limiting assemblies used for limiting rotation of the horizontal rotary seats are arranged on the horizontal rotary seats. The horizontal rotating seat is rotationally connected with a thigh supporting plate capable of rotating vertically, and the free end of the thigh supporting plate is rotationally connected with a shank supporting plate capable of rotating vertically; a connecting telescopic rod is arranged between the free end of the thigh supporting plate and the lower side of the shank supporting plate, a supporting frame is downwards arranged at the free end of the horizontal rotating seat, and a supporting telescopic rod capable of vertically rotating is rotationally connected between the supporting frame and the shank supporting plate; the shank supporting plate is provided with a bending limiting assembly used for limiting stretching and retracting of the connecting telescopic rod and stretching and retracting of the supporting telescopic rod. The device can be quickly adjusted, locked and positioned, is simple to operate, and contributes to improving the operation efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical auxiliary equipment, and relates to an adjustable lithotomy position bed structure. BACKGROUND

[0002] In modern clinical medicine, especially in the fields of urology, gynecology and anorectal surgery, in order to obtain the best surgical field and operation space, patients often need to adopt a specific body position for surgery. Among them, the lithotomy position is a widely used surgical position, that is, the patient is placed supine on the operating bed, the legs are placed on adjustable leg supports respectively, the hip joint is flexed and abducted and externally rotated, and the knee joint is flexed, so that the perineum is fully exposed, facilitating the surgeon to perform surgery on the urethra, vagina or rectum, etc.

[0003] To meet the requirements of the lithotomy position, a specially designed lithotomy position bed or a multifunctional operating bed with lithotomy position function is widely used in the above-mentioned surgical scenarios. Taking urological surgery as an example, such as transurethral resection of the prostate, cystoscopy and lithotripsy, etc., the patient needs to maintain a stable lithotomy position. Such operating beds are usually equipped with independently adjustable leg support assemblies, including thigh supports and calf supports, which realize flexible adjustment of the leg supports in multiple degrees of freedom through multiple rotary joints, such as abduction / adduction, flexion / extension, and height and angle adjustment, to adapt to patients of different body types and different surgical needs, ensure patient comfort and safety, and ensure smooth surgery.

[0004] However, the existing lithotomy position bed still has significant defects in actual use. Specifically, in order to fix the adjusted leg support position, a locking mechanism usually needs to be provided at each movable joint, and most devices currently use a bolt-type mechanical clamping structure. When placing the body position before surgery or needing fine adjustment during surgery, medical staff must manually tighten the locking bolts of each joint one by one, which is tedious and time-consuming. In addition, the existing leg support adjustment mechanism often lacks effective limiting devices, and over-rotation or accidental loosening may occur during adjustment, which not only affects the efficiency of surgery, but also may cause harm to the patient. Especially in complex surgeries that require frequent adjustment of leg support angles, the existing locking mechanism is difficult to achieve rapid and accurate adjustment, and cannot maintain a stable support force during adjustment. In view of the above problems, the existing technology needs to be improved. SUMMARY

[0005] The purpose of the present application is to provide an adjustable lithotomy position bed structure, which adopts a completely new structure design, can quickly adjust and lock the position, is simple to operate, and helps to improve the efficiency of surgery.

[0006] To solve the above technical problems, the present invention provides an adjustable lithotomy bed structure, including a support, a bed board at the upper end of the support, two opposing rotating connecting seats at the lower side of a section of the bed board, each rotating connecting seat being rotatably connected to a horizontally rotating seat, each horizontally rotating seat being provided with a horizontal rotation limiting component for limiting its rotation, each horizontally rotating seat being rotatably connected to a thigh support plate capable of vertical rotation, and each thigh support plate being rotatably connected to a lower leg support plate capable of vertical rotation at its free end;

[0007] Each thigh support plate has a connecting telescopic rod between its free end and the lower side of the corresponding calf support plate. Each connecting telescopic rod includes a telescopic inner rod that is rotatably connected to the free end of the corresponding thigh support plate and can rotate vertically, and a telescopic sleeve that is located on the lower side of the corresponding calf support plate and covers the corresponding telescopic inner rod. Each horizontal rotating seat has a support frame that is set downward at its free end. Each support frame is rotatably connected to the corresponding calf support plate with a support telescopic rod that can rotate vertically. Each support telescopic rod includes a support inner rod that is rotatably connected to the corresponding support frame and a support sleeve that is connected to the corresponding telescopic sleeve and covers the corresponding support inner rod. Each calf support plate is provided with a bending limiting component for limiting the extension and retraction of the corresponding connecting telescopic rod and the corresponding support telescopic rod.

[0008] Each thigh support plate has multiple thigh fixing straps connected to one long side, and each calf support plate has a calf fixing strap on one long side.

[0009] By adopting the above technical solution, when the patient uses the lithotomy position bed, the patient lies on the bed board with the thighs placed on the thigh support board and the lower legs placed on the lower leg support board, and is fixed with thigh fixation straps and lower leg fixation straps. When it is necessary to adjust the position of the lower leg support board according to the patient's leg length, simply open the bending limiting component to allow the connecting telescopic rod to extend and retract freely. The arc-shaped sealing sleeve is pulled by the second pull rope to slide and compress the support spring, so that when the second vent is opened, gas can freely enter and exit the support sleeve through the second vent, allowing the support telescopic rod to extend and retract freely, thereby adjusting the position of the lower leg support board.

[0010] When the patient's leg is outwardly spread and bent, first open the horizontal rotation limiting assembly, at this time the horizontal rotation seat can rotate, then rotate the patient's leg horizontally outward, after releasing the horizontal rotation limiting assembly, the telescopic limiting strip resets under the action of the supporting elastic sheet, the telescopic clamping tooth extends and clamps with the limiting clamping tooth, so that the horizontal rotation seat cannot rotate, when the patient's leg needs to be bent, similarly open the bending limiting assembly, so that the connecting telescopic rod can freely extend and retract, the arc-shaped sealing sleeve slides and compresses the supporting spring through the second pull rope, so that the supporting telescopic rod can freely extend and retract, then vertically rotate the calf support plate, so that the patient's leg is in a bent state, after releasing the bending limiting assembly, the arc-shaped sealing sleeve covers the first air hole, so that the connecting telescopic rod cannot freely extend and retract, the sealing sleeve pipe resets under the action of the supporting spring to cover the second air hole, so that the supporting telescopic rod cannot freely extend and retract, then the bending degree of the patient's leg can be fixed.

[0011] The application is further provided that each horizontal rotation limiting assembly comprises a sliding connection sleeve arranged on the lower side of the corresponding horizontal rotation seat and along the length direction thereof, one end of each sliding connection sleeve towards the bed plate is an arc-shaped rotation head, the lower side of each rotation connection seat is provided with an inner arc-shaped limiting groove matched with the corresponding arc-shaped rotation head, each sliding connection sleeve is slidably connected with a telescopic limiting strip, one end of each telescopic limiting strip towards the bed plate is matched with the arc-shaped shape of the corresponding arc-shaped rotation head, the inner wall of each inner arc-shaped limiting groove is provided with a plurality of limiting clamping teeth, each arc-shaped rotation head is provided with a plurality of telescopic limiting grooves corresponding to the limiting clamping teeth, and the arc-shaped end of each telescopic limiting strip is provided with a plurality of telescopic clamping teeth slidably connected with the corresponding telescopic limiting grooves and capable of being clamped with the corresponding limiting clamping teeth.

[0012] One end of each sliding connection sleeve away from the corresponding arc-shaped rotation head is inwardly provided with a limiting sliding groove with a smaller inner diameter, each telescopic limiting strip is connected with a telescopic connecting strip extending out of the limiting sliding groove, and a supporting elastic sheet is arranged between the bottom of each sliding connection sleeve close to the corresponding limiting sliding groove and the corresponding telescopic limiting strip, the elastic force of each supporting elastic sheet drives the corresponding telescopic limiting strip to move towards the corresponding arc-shaped rotation head, the lower side of each horizontal rotation seat is rotationally connected with a handle, and a first pull rope is connected between each handle and the free end of the corresponding telescopic connecting strip, rotating the handle can make the first pull rope displace the telescopic limiting strip, so that the telescopic clamping tooth retracts into the telescopic limiting groove.

[0013] The application is further provided that the rotating end of each handle is an arc-shaped pulling head, and one end of each first pull rope is connected with one end of the corresponding arc-shaped pulling head.

[0014] The application is further provided that the outward side of each horizontal rotation seat is downwardly provided with a handrail matched with the corresponding handle.

[0015] Further, each bending limiting component comprises an arc-shaped sealing sleeve rotationally connected to the free end of the corresponding telescopic sleeve, each arc-shaped sealing sleeve rotates away from the bed board, each arc-shaped sealing sleeve is sealingly attached to the outer wall of the corresponding telescopic sleeve, each telescopic sleeve is provided with a first air hole at the corresponding arc-shaped sealing sleeve, each support sleeve is provided with a sealing sleeve that is sealingly and slidably connected to the corresponding telescopic sleeve at one end of the telescopic sleeve, each support sleeve is provided with a support ring at one end of the telescopic sleeve, each support sleeve is provided with a support spring between the corresponding sealing sleeve and the support ring, each support sleeve is provided with a second air hole at the corresponding sealing sleeve, and each sealing sleeve is connected to the corresponding arc-shaped sealing sleeve at one end of the arc-shaped sealing sleeve that is close to the bed board, when the arc-shaped sealing sleeve rotates outward, the first air hole is leaked, and the sealing sleeve is pulled to slide out of the second air hole.

[0016] Further, each arc-shaped sealing sleeve is provided with a handle at one end of the arc-shaped sealing sleeve that is away from the bed board.

[0017] Further, each sealing sleeve is provided with a blocking ring at one end of the sealing sleeve that is away from the corresponding telescopic sleeve, and each support spring is provided between the corresponding blocking ring and the corresponding support ring.

[0018] Further, the upper end of the bed board is provided with a mattress, the upper end of each thigh support plate is provided with a thigh support pad with a concave middle portion, and the upper end of each calf support plate is provided with a calf support pad with a concave middle portion.

[0019] Further, the outer edge of each thigh support plate is provided with a plurality of first pull rings corresponding to the corresponding thigh fixing belts, each thigh fixing belt is connected by a magic tape from end to end through the corresponding first pull ring, and the outer edge of each calf support plate is provided with a plurality of second pull rings corresponding to the corresponding calf fixing belts, each calf fixing belt is connected by a magic tape from end to end through the corresponding second pull ring.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] The adjustable lithotomy position bed structure, the horizontal rotation limiting component and the bending limiting component provided by the present application realize quick locking and stable support after multi-degree-of-freedom adjustment of the leg support, avoid the cumbersome operation of traditional bolt locking, and ensure accurate positioning and reliable fixing of each joint in the adjustment process through the synergistic effect of the limiting clamping teeth and the air hole, so that the present application has the advantages of convenient adjustment, reliable fixing and avoidance of accidental loosening. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 Bottom structure for showing thigh support plate and calf support plate;

[0024] Figure 3 For showing the connection of the rotating connecting seat and the horizontal rotating seat;

[0025] Figure 4 For showing the connection of the telescopic limiting strip and the sliding connecting sleeve;

[0026] Figure 5 For showing the connection of the telescopic rod and the support telescopic rod and the calf support plate;

[0027] Figure 6 For showing the first air hole on the telescopic rod;

[0028] Figure 7 For showing the second air hole on the support telescopic rod.

[0029] 1, support; 2, bed plate; 3, rotating connecting seat; 4, horizontal rotating seat; 5, thigh support plate; 6, calf support plate; 7, mattress; 8, thigh support pad; 9, calf support pad; 10, sliding connecting sleeve; 11, arc-shaped rotating head; 12, inner arc-shaped limiting groove; 13, telescopic limiting strip; 14, limiting clamping tooth; 15, telescopic limiting groove; 16, telescopic clamping tooth; 17, limiting sliding groove; 18, telescopic connecting strip; 19, support elastic sheet; 20, handle; 21, arc-shaped pulling head; 22, first pulling rope; 23, support strip; 24, telescopic inner rod; 25, telescopic sleeve; 26, support frame; 27, support inner rod; 28, support sleeve; 29, arc-shaped sealing sleeve; 30, handle; 31, first air hole; 32, sealing sleeve; 33, support ring; 34, blocking ring; 35, support spring; 36, second air hole; 37, second pulling rope; 38, thigh fixing belt; 39, first pull ring; 40, calf fixing belt; 41, second pull ring. DETAILED DESCRIPTION

[0030] The present application will be further described below in conjunction with the drawings and specific embodiments. According to the following description, the advantages and features of the present application will be more apparent. It should be noted that the drawings are in a very simplified form and all use non-precise proportions, only for the purpose of facilitating and clarifying the purpose of assisting the description of the embodiments of the present application. The same or similar reference numerals in the drawings represent the same or similar parts.

[0031] Embodiment, refer to Figures 1-7The utility model provides a kind of adjustable lithotomy position bed structure, including support 1, the upper end of support 1 is provided with a bed board 2, the lower side of the section of bed board 2 is provided with two opposite rotation connecting seat 3, each rotation connecting seat 3 is rotatably connected with a horizontal rotation seat 4 capable of horizontal rotation, each horizontal rotation seat 4 is provided with a horizontal rotation limiting component for limiting its rotation.Each horizontal rotation seat 4 is rotatably connected with a large leg support plate 5 capable of vertical rotation, the free end of each large leg support plate 5 is rotatably connected with a small leg support plate 6 capable of vertical rotation. The upper end of bed board 2 is provided with a mattress 7, the upper end of each large leg support plate 5 is provided with a large leg support pad 8 with downwardly concave middle part, and the upper end of each small leg support plate 6 is provided with a small leg support pad 9 with downwardly concave middle part.

[0032] Each horizontal rotation limiting component includes a sliding connection sleeve 10 arranged on the lower side of the corresponding horizontal rotation seat 4 and along the length direction thereof, one end of each sliding connection sleeve 10 towards the bed board 2 is an arc-shaped arc-shaped rotating head 11, the lower side of each rotation connecting seat 3 is provided with an inner arc-shaped limiting groove 12 matched with the corresponding arc-shaped rotating head 11, each sliding connection sleeve 10 is slidably connected with a telescopic limiting strip 13, the end of each telescopic limiting strip 13 towards the bed board 2 is matched with the arc-shaped shape of the corresponding arc-shaped rotating head 11, the inner wall of each inner arc-shaped limiting groove 12 is provided with a plurality of limiting clamping teeth 14, each arc-shaped rotating head 11 is provided with a plurality of telescopic limiting grooves 15 corresponding to the corresponding limiting clamping teeth 14, and the arc-shaped end of each telescopic limiting strip 13 is provided with a plurality of telescopic clamping teeth 16 slidably connected with the corresponding telescopic limiting grooves 15 and capable of being clamped with the corresponding limiting clamping teeth 14, and the telescopic clamping teeth 16 can be clamped with the limiting clamping teeth 14 after extending out of the telescopic limiting groove 15, so that the horizontal rotation seat 4 cannot be rotated.

[0033] One end of each sliding connection sleeve 10 away from the corresponding arc-shaped rotating head 11 is inwardly provided with a limiting sliding groove 17 with smaller inner diameter, each telescopic limiting strip 13 is connected with a telescopic connecting strip 18 extending out of the limiting sliding groove 17, and two support elastic sheets 19 are arranged between the bottom of each sliding connection sleeve 10 close to the corresponding limiting sliding groove 17 and the corresponding telescopic limiting strip 13, the elastic force of each support elastic sheet 19 drives the corresponding telescopic limiting strip 13 to move towards the corresponding arc-shaped rotating head 11, the lower side of each horizontal rotation seat 4 is rotatably connected with a handle 20, the rotating end of each handle 20 is an arc-shaped pulling head 21, each arc-shaped pulling head 21 and the free end of the corresponding telescopic connecting strip 18 are connected with a first pulling rope 22, and one side of each horizontal rotation seat 4 outwardly is downwardly provided with a handrail 23 matched with the corresponding handle 20. Rotating the handle 20 can make the first pulling rope 22 displace the telescopic limiting strip 13, so that the telescopic clamping teeth 16 are retracted into the telescopic limiting groove 15, and at this time the horizontal rotation seat 4 can continue to rotate.

[0034] A connecting telescopic rod is arranged between the free end of each thigh support plate 5 and the lower side of the corresponding calf support plate 6, each connecting telescopic rod comprising a telescopic inner rod 24 rotatably connected to the free end of the corresponding thigh support plate 5 and capable of vertical rotation, and a telescopic sleeve 25 arranged on the lower side of the corresponding calf support plate 6 and sleeving the corresponding telescopic inner rod 24, the free end of each horizontal rotation seat 4 is downwardly provided with a support frame 26, a support telescopic rod capable of vertical rotation is rotatably connected between each support frame 26 and the corresponding calf support plate 6, each support telescopic rod comprising a support inner rod 27 rotatably connected to the corresponding support frame 26, and a support sleeve 28 connected to the corresponding telescopic sleeve 25 and sleeving the corresponding support inner rod 27, a bending limiting assembly for limiting the extension and retraction of the corresponding connecting telescopic rod and the corresponding support telescopic rod is arranged on each calf support plate 6.

[0035] Each bending limiting assembly comprises an arc-shaped sealing sleeve 29 rotatably connected to the free end of the corresponding telescopic sleeve 25, each arc-shaped sealing sleeve 29 rotates away from the bed plate 2, each arc-shaped sealing sleeve 29 is sealingly attached to the outer wall of the corresponding telescopic sleeve 25, one end of each arc-shaped sealing sleeve 29 beyond the bed plate 2 is downwardly provided with a T-shaped handle 30, each telescopic sleeve 25 is provided with a first air hole 31 at the position of the corresponding arc-shaped sealing sleeve 29, when the first air hole 31 is open, the connecting telescopic rod can freely extend and retract because the gas can freely enter and exit the telescopic sleeve 25 through the first air hole 31. One end of each support sleeve 28 close to the corresponding telescopic sleeve 25 is sleeved with a sealing sleeve 32 sealingly connected thereto, one end of each support sleeve 28 close to the corresponding telescopic sleeve 25 is provided with a support ring 33, one end of each sealing sleeve 32 away from the corresponding telescopic sleeve is outwardly provided with a blocking ring 34, a support spring 35 is arranged between each blocking ring 34 and the corresponding support ring 33, each support sleeve 28 is provided with a second air hole 36 at the position of the corresponding sealing sleeve 32, when the second air hole 36 is open, the support telescopic rod can freely extend and retract because the gas can freely enter and exit the support sleeve 28 through the second air hole 36. Two second pull ropes 37 are connected between one end of each sealing sleeve 32 close to the bed plate 2 and the corresponding arc-shaped sealing sleeve 29, when the arc-shaped sealing sleeve 29 rotates outwardly, the first air hole 31 can be leaked and the sealing sleeve 32 can be pulled to slide out of the second air hole 36.

[0036] Each long edge of each thigh support plate 5 is connected with three thigh fixing belts 38, and each outer edge of each thigh support plate 5 is provided with three first pull rings 39 corresponding to the thigh fixing belts 38 respectively, and each thigh fixing belt 38 is connected by magic tape from head to tail through the corresponding first pull ring 39. Each long edge of each calf support plate 6 is provided with two calf fixing belts 40, and each outer edge of each calf support plate 6 is provided with two second pull rings 41 corresponding to the calf fixing belts 40 respectively, and each calf fixing belt 40 is connected by magic tape from head to tail through the corresponding second pull ring 41.

[0037] Usage: When the patient uses the lithotomy bed, the patient lies on the bed plate 2, the thighs are placed on the thigh support plate 5, the calves are placed on the calf support plate 6, and are fixed by the thigh fixing belt 38 and the calf fixing belt 40, and when the position of the calf support plate 6 needs to be adjusted according to the leg length of the patient, only the arc-shaped sealing sleeve 29 is pulled outward by the pull handle 30 to open the first air hole 31 to make the gas freely in and out of the telescopic sleeve pipe 25 through the first air hole 31, so that the connecting telescopic rod can freely extend and retract, the arc-shaped sealing sleeve 29 slides the sealing sleeve pipe 32 to compress the supporting spring 35 through the second pull rope 37, so that the second air hole 36 is opened, the gas can freely in and out of the supporting sleeve pipe 28 through the second air hole 36, so that the supporting telescopic rod can freely extend and retract, and the position of the calf support plate 6 can be adjusted.

[0038] When the patient's leg is outwardly opened and bent, first pinch the handrail 23, hold the handle 20 and turn it outward, and when turning, the arc-shaped pulling head 21 winds the first pull rope 22, and the telescopic limiting strip 13 is displaced to compress the supporting spring sheet 19, so that the telescopic clamping tooth 16 is retracted into the telescopic limiting slot 15, at this time the horizontal rotating seat 4 can be rotated, and the patient's leg is horizontally turned outward, after the handle 20 is released, the telescopic limiting strip 13 is reset under the action of the supporting spring sheet 19, so that the telescopic clamping tooth 16 is extended and clamped with the limiting clamping tooth 14, so that the horizontal rotating seat 4 cannot be rotated, when the patient's leg needs to be bent, the arc-shaped sealing sleeve 29 is pulled outward by the pull handle 30, so that the connecting telescopic rod can freely extend and retract, the arc-shaped sealing sleeve 29 slides the sealing sleeve pipe 32 to compress the supporting spring 35 through the second pull rope 37, so that the supporting telescopic rod can freely extend and retract, and the calf support plate 6 can be vertically rotated, so that the patient's leg is in a bent state, after the arc-shaped sealing sleeve 29 is released, the arc-shaped sealing sleeve 29 covers the first air hole 31, so that the connecting telescopic rod cannot freely extend and retract, the sealing sleeve pipe 32 is reset under the action of the supporting spring 35 to cover the second air hole 36, so that the supporting telescopic rod cannot freely extend and retract, and the bending degree of the patient's leg can be fixed.

[0039] It should be further explained that all the "arranged" and similar descriptions in the present application (especially the specification) express that there is a connection between two structures, but the specific connection means is not limited too much, and is usually a conventional connection means, that is, it should be understood that the means is the prior art, and does not need to be described too much. For example, "m is arranged with n", only expresses that there is n structure on m structure, and the specific connection between the two is through welding, riveting, adhesive connection or one-piece forming, which is within the protection scope of the present application. For example, "x is arranged with y", only expresses that y and x can rotate relative to each other, and as for whether the two are connected through a bearing to rotate, or y directly penetrates x to rotate with x, or other realizable modes, which are within the protection scope of the present application.

[0040] The above description is only a description of the preferred embodiments of the present application, and is not any limitation on the scope of the present application. Any modification and modification of the present application by a person skilled in the art according to the above disclosure is within the protection scope of the claims.

Claims

1. An adjustable lithotomy position bed structure comprising a support (1), the upper end of which is provided with a bed plate (2), characterized in that, The lower side of the bed board (2) is provided with two opposite rotating connecting seats (3), each rotating connecting seat (3) is rotatably connected with a horizontal rotating seat (4) capable of horizontal rotation, each horizontal rotating seat (4) is provided with a horizontal rotation limiting assembly for limiting the rotation thereof, each horizontal rotating seat (4) is rotatably connected with a thigh supporting plate (5) capable of vertical rotation, and the free end of each thigh supporting plate (5) is rotatably connected with a calf supporting plate (6) capable of vertical rotation; The free end of each thigh supporting plate (5) and the lower side of the corresponding calf supporting plate (6) are provided with a connecting telescopic rod, each connecting telescopic rod comprises a telescopic inner rod (24) rotatably connected to the free end of the corresponding thigh supporting plate (5) and capable of vertical rotation, and a telescopic sleeve (25) provided on the lower side of the corresponding calf supporting plate (6) and sleeving the corresponding telescopic inner rod (24), the free end of each horizontal rotating seat (4) is downwardly provided with a supporting frame (26), each supporting frame (26) and the corresponding calf supporting plate (6) are rotatably connected with a supporting telescopic rod capable of vertical rotation, each supporting telescopic rod comprises a supporting inner rod (27) rotatably connected with the corresponding supporting frame (26), and a supporting sleeve (28) connected with the corresponding telescopic sleeve (25) and sleeving the corresponding supporting inner rod (27), and each calf supporting plate (6) is provided with a bending limiting assembly for limiting the expansion and contraction of the corresponding connecting telescopic rod and the corresponding supporting telescopic rod; One long side of each thigh supporting plate (5) is connected with a plurality of thigh fixing belts (38), and one long side of each calf supporting plate (6) is provided with a calf fixing belt (40).

2. An adjustable lithotomy position bed structure as claimed in claim 1, wherein, Each horizontal rotation limiting assembly comprises a sliding connection sleeve (10) provided on the lower side of the corresponding horizontal rotating seat (4) and arranged along the length direction thereof, one end of each sliding connection sleeve (10) towards the bed board (2) is an arc-shaped rotating head (11), the lower side of each rotating connecting seat (3) is provided with an inner arc-shaped limiting groove (12) matched with the corresponding arc-shaped rotating head (11), each sliding connection sleeve (10) is slidably connected with a telescopic limiting strip (13), one end of each telescopic limiting strip (13) towards the bed board (2) is matched with the arc-shaped rotating head (11) in shape, the inner wall of each inner arc-shaped limiting groove (12) is provided with a plurality of limiting clamping teeth (14), each arc-shaped rotating head (11) is provided with a plurality of telescopic limiting grooves (15) corresponding to the limiting clamping teeth (14), and the arc-shaped end of each telescopic limiting strip (13) is provided with a plurality of telescopic clamping teeth (16) slidably connected with the corresponding telescopic limiting grooves (15) and capable of being clamped with the corresponding limiting clamping teeth (14). Each sliding connection sleeve (10) is provided with a smaller inner diameter limiting sliding groove (17) inwardly away from one end of the corresponding arc-shaped rotating head (11), each telescopic limiting strip (13) is connected with a telescopic connecting strip (18) extending from the limiting sliding groove (17), a supporting elastic sheet (19) is arranged between the bottom of each sliding connection sleeve (10) close to the corresponding limiting sliding groove (17) and the corresponding telescopic limiting strip (13), the elastic force of each supporting elastic sheet (19) drives the corresponding telescopic limiting strip (13) to move towards the corresponding arc-shaped rotating head (11), the lower side of each horizontal rotating seat (4) is rotationally connected with a handle (20), a first pull rope (22) is connected between each handle (20) and the free end of the corresponding telescopic connecting strip (18), rotating the handle (20) can make the first pull rope (22) pull the telescopic limiting strip (13) to displace, so that the telescopic clamping tooth (16) is retracted into the telescopic limiting groove (15).

3. An adjustable lithotomy position bed structure as claimed in claim 2, wherein, The rotating end of each handle (20) is an arc-shaped pulling head (21), one end of each first pull rope (22) is connected with one end of the corresponding arc-shaped pulling head (21).

4. The adjustable lithotomy position bed structure of claim 2, wherein, The outward side of each horizontal rotating seat (4) is downwardly provided with a supporting strip (23) matched with the corresponding handle (20).

5. The adjustable lithotomy position bed structure of claim 1, wherein, Each bending limiting assembly comprises an arc-shaped sealing sleeve (29) rotationally connected to the free end of the corresponding telescopic sleeve (25), each arc-shaped sealing sleeve (29) rotates away from the bed plate (2), each arc-shaped sealing sleeve (29) is sealingly attached to the outer wall of the corresponding telescopic sleeve (25), each telescopic sleeve (25) is provided with a first air hole (31) at the corresponding arc-shaped sealing sleeve (29), one end of each supporting sleeve (28) close to the corresponding telescopic sleeve (25) is externally sleeved with a sealing sleeve (32) sealingly and slidingly connected therewith, one end of each supporting sleeve (28) close to the corresponding telescopic sleeve (25) is provided with a supporting ring (33), a supporting spring (35) is arranged between each sealing sleeve (32) and the corresponding supporting ring (33), each supporting sleeve (28) is provided with a second air hole (36) at the corresponding sealing sleeve (32), a second pull rope (37) is connected between each sealing sleeve (32) and the end of the corresponding arc-shaped sealing sleeve (29) close to the bed plate (2), when the arc-shaped sealing sleeve (29) rotates outwardly, the first air hole (31) can be leaked, and the sealing sleeve (32) can be pulled to slide out of the second air hole (36).

6. An adjustable lithotomy position bed structure as claimed in claim 5, wherein, One end of each arc-shaped sealing sleeve (29) away from the bed plate (2) is downwardly provided with a pull handle (30).

7. An adjustable lithotomy position bed structure as claimed in claim 5, wherein, One end of each sealing sleeve (32) away from the corresponding telescopic sliding sleeve is outwardly provided with a blocking ring (34), each supporting spring (35) is arranged between the corresponding blocking ring (34) and the corresponding supporting ring (33).

8. The adjustable lithotomy position table structure of claim 1, wherein, The upper end of the bed plate (2) is provided with a mattress (7), the upper end of each thigh support plate (5) is provided with a thigh support pad (8) with a downwardly recessed middle part, and the upper end of each calf support plate (6) is provided with a calf support pad (9) with a downwardly recessed middle part.

9. The adjustable lithotomy position table structure of claim 1, wherein, The outer edge of each thigh support plate (5) is provided with a plurality of first pull rings (39) corresponding to the corresponding thigh fixing belts (38) one by one, each thigh fixing belt (38) is connected head to tail by Velcro through the corresponding first pull ring (39), and the outer edge of each calf support plate (6) is provided with a plurality of second pull rings (41) corresponding to the corresponding calf fixing belts (40) one by one, each calf fixing belt (40) is connected head to tail by Velcro through the corresponding second pull ring (41).

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