A non-disassembly lithotomy leg-rest bed and its operation method

Abstract

The present invention belongs to the field of medical devices, and more particularly to a disassembly-free lithotomy position leg-rest bed and an operation method thereof, wherein the leg-rest bed comprises an upper body bed and two deformable leg rests located on the same plane; wherein the deformable leg rest comprises a thigh support plate, a calf support plate, and an arc-shaped retractable kit connected therebetween, so that the calf support plate moves along an arc-shaped motion trajectory with a certain point as the center of the circle, and the calf support plate is an anti-reverse-slip drawer structure, and the two thigh support plates are respectively connected to the upper body bed by a lockable rotating shaft assembly, so that the two thigh support plates can be opened and locked at a certain angle. The present invention eliminates the inconvenience of disassembling the original bed and requiring an external leg-rest kit for lithotomy position surgery in the past, and during the deformation process, structures such as the thigh support plate and the calf support plate can always fit the patient's legs, thereby ensuring the patient's comfort, reducing the risk of fractures, making clinical work more convenient, and improving efficiency and reducing risks.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a disassembly-free lithotomy leg-rest bed and an operation method thereof. Background Art

[0002] The lithotomy position is a commonly used surgical position. Because it can expose the perineum to the maximum extent, it can be used for surgeries on the perineum, external genitalia and anus. It is particularly important and commonly used in urology and obstetrics and gynecology. During the specific operation, the patient's upper body needs to lie flat or at a certain angle, with the buttocks close to the edge of the operating table, the lower limbs are abducted and raised, and the raised lower limbs are fixed with external fixation devices. The process is relatively cumbersome and requires the patient's own cooperation. In most cases, the patient first needs to move or be carried to the operating table by himself. During this process, the external fixation device of the legs fixed to the side of the bed will affect the patient's movement. Therefore, the leg fixation device is generally external and installed by the surgeon and assistant after the patient is placed on the operating table. After the legs are raised, the excess bed below the patient's buttocks needs to be removed again to leave space for the surgeon to perform the operation. After the operation is completed, the legs need to be laid flat and the leg fixation device removed. If it is a general anesthesia operation, the assistant needs to move the patient's legs by himself. During any of the above-mentioned processes of moving the legs, the patient's waist, hip, or even knee joint may be fractured due to adjustment of the leg fixation device and the relative position of the legs, thereby increasing injuries that are completely unrelated to the surgery.

[0003] Therefore, based on these problems, a non-disassembly lithotomy position leg bed and an operation method thereof are provided, which have important practical significance. Summary of the invention

[0004] In order to reduce the hidden dangers mentioned above and simplify the overall operation process, the present invention uses a disassembly-free lithotomy position leg frame bed that integrates the previous external leg fixing device with the lower half of the operating table that needs to be disassembled. When adjusting the patient's position, the lower half of the bed body of the leg frame is always in close contact with the patient's lower limbs, and the position is placed without disassembling any parts. In addition, because the thigh support plate, calf support plate and other structures are already in close contact with the legs, there is no need to adjust the relative position of the legs and the leg frame, which reduces the risk of fractures caused by excessive activity of the patient and reduces the manpower in the posture placement process. At the same time, when it is not deformed, it can be used as a normal operating table for other operations.

[0005] The technical solution adopted by the present invention to solve this problem is:

[0006] A non-disassembly lithotomy position leg frame bed, comprising an upper body bed body and two deformable leg frames located on the same plane;

[0007] Among them, the deformable leg support includes a thigh support, a calf support and an arc-shaped retractable kit connected therebetween, so that the calf support moves along an arc-shaped motion trajectory with a certain point as the center of the circle, and the calf support is an anti-slip drawer structure. The two thigh supports are respectively connected to the upper body bed body through a lockable rotating shaft assembly, so that the two thigh supports can be opened and locked at a certain angle.

[0008] Preferably, when the two deformable leg racks are in a non-deformed state, the two deformable leg racks are installed side by side on the foot side of the upper body bed, and the upper end surface of the upper body bed is located on the same plane as the upper end surfaces of the thigh support plate and the calf support plate.

[0009] Further preferably, a headrest is fixed on the head side of the upper body bed, and handrails are fixed on both sides.

[0010] Further preferably, the calf support plate comprises a drawer support plate and a sliding support plate slidably installed in the drawer support plate, the upper end surface of the drawer support plate is provided with a ratchet layer along its length direction, and the foot side of the sliding support plate is rotatably provided with an anti-slip block piece, and when the anti-slip block piece abuts against one of the ratchets on the ratchet layer, the sliding support plate cannot move toward the foot side of the drawer support plate.

[0011] Further preferably, a leg pad is integrally provided at the upper end of the sliding support plate, and an upper end surface of the leg pad is provided with a concave surface along its length direction to match the patient's calf area.

[0012] Further preferably, the retractable kit includes an arc-shaped inner tube, an arc-shaped outer tube matched with the outer side of the arc-shaped inner tube, and a first threaded locking member for fixing the position between the arc-shaped inner tube and the arc-shaped outer tube, the free end of the arc-shaped inner tube is connected to the lower end of the drawer support plate through a lockable movable shaft assembly, and the free end of the arc-shaped outer tube is fixedly connected to the lower end of the thigh support plate.

[0013] Further preferably, the movable shaft assembly comprises:

[0014] A connecting piece, which is an n-shaped metal piece, and the connecting piece is fixed to the lower end of the drawer support plate;

[0015] The connecting shaft is integrally formed at the free end of the arc-shaped inner tube, and the connecting shaft is inserted into the connecting piece and movably connected and locked through a second threaded locking piece.

[0016] Further preferably, the rotating shaft assembly comprises:

[0017] A rotating shaft, which is fixed to the lower end of the upper body bed;

[0018] The rotating rod is a metal bending rod, which is located below the upper body bed body. One end of the rotating rod is rotatably mounted on the rotating shaft through a shaft sleeve, and the other end is fixed to the lower end of the thigh support plate through a screw.

[0019] Further preferably, the rotating shaft assembly also includes a control handle rod for locking the position between the sleeve and the rotating shaft, a third threaded locking piece is fixed to one end of the control handle rod, a through screw hole is opened on the sleeve along its radial direction, and the third threaded locking piece is threadedly installed on the through screw hole and abuts against the rotating shaft.

[0020] The second invention object of the present invention is to provide an operation method of a non-disassembly lithotomy leg support bed, comprising the following steps:

[0021] Step 1: When the two deformable leg frames are in a non-deformed state, the leg frame bed is used as a normal operating bed;

[0022] Step 2: Before the operation, the patient lies on the leg support bed, with the head above the headrest, the upper body above the upper body bed, the legs on two deformable leg supports, the thighs above the thigh support board, and the calves above the calf support board;

[0023] Step 3: The two thigh support plates can be adjusted to open at a certain angle on the plane where the cross section of the upper body bed is located by the rotating shaft assembly, and the opening angle can be locked by controlling the handle rod;

[0024] Step 4: The calf support plate can be adjusted to rotate in the sagittal plane by the movable shaft assembly and locked in position by the second threaded locking member;

[0025] Step 5: The calf support plate can be adjusted by the telescopic kit to move along an arc motion trajectory with a certain point as the center on the plane where the longitudinal section of the thigh support plate is located, and the position is locked by the first threaded locking member, so that the calf support plate is suspended and lifted up, so that the patient raises his legs to maintain the lithotomy position;

[0026] Step 6: Adjust the position of the sliding support plate in the drawer support plate according to the patient's leg length. By pushing the sliding support plate, the sliding support plate can be pushed toward the head side of the drawer support plate. After reaching a suitable position, the anti-slip block piece abuts against one of the ratchet teeth on the ratchet layer, and the sliding support plate cannot move toward the foot side of the drawer support plate. When the patient is in the lithotomy position with the lower leg raised and the thigh suspended, the sliding support plate can be pushed toward the head side of the patient to press against the popliteal fossa.

[0027] Step 7: The leg bed is deformed and the operation begins;

[0028] Step 8: After the operation is completed, reduction is performed;

[0029] First, manually rotate the anti-skid barrier sheet, the anti-skid barrier sheet is separated from the ratchet layer, and the sliding support plate moves toward the foot side of the drawer support plate to reset;

[0030] Then, unlock the first threaded locking member and adjust the calf support plate to reset through the telescopic kit, and lock the position again through the first threaded locking member after the reset is completed;

[0031] Afterwards, unlock the second threaded locking member and adjust the calf support plate to reset through the movable shaft assembly, and lock the position again through the second threaded locking member after the reset is completed;

[0032] Finally, the control handle bar is turned to adjust the two thigh support plates to reset through the rotating shaft assembly. After the reset is completed, the position is locked through the control handle bar, and the leg bed can continue to be used as a normal operating bed.

[0033] The advantages and positive effects of the present invention are:

[0034] 1. The present invention eliminates the inconvenience of disassembling the original bed and the need for an external leg support kit for previous lithotomy surgery, and during the deformation process, structures such as the thigh support and the calf support can always fit the patient's legs, ensuring the patient's comfort, reducing the risk of fractures, making clinical work more convenient, improving efficiency and reducing risks.

[0035] 2. In the present invention, the upper part of the deformable leg frame is a thigh support plate for placing the patient's thighs, and this part is connected to the upper body bed through a rotating shaft assembly, so that the deformable leg frame can help the patient's legs to be fixed at any time when they are abducted to any angle.

[0036] 3. In the present invention, the lower part of the deformable leg frame is an anti-slip drawer structure. Due to the different thigh lengths of different patients, when the calf is raised and the thigh is suspended in the lithotomy position, the sliding support plate can be pushed toward the patient's head to fit the popliteal fossa and lock it, which can fit the patient's legs so that the legs are suspended and fixed more firmly and the patient's comfort is improved.

[0037] 4. In the present invention, the thigh support plate and the calf support plate are connected by a retractable kit. When the retractable kit is extended, the calf support plate can be suspended and lifted up, so as to help the patient raise his legs to maintain the lithotomy position. At the same time, the purpose of designing the retractable kit as a semicircle is to ensure that the arc-shaped inner tube can move around a fixed center of circle during the extension process, which is in line with the physiological characteristics of rotating around the hip joint as the center of circle when the thigh is raised.

[0038] 5. In the present invention, the arc-shaped inner tube is connected to the drawer support plate by a movable shaft assembly, which allows the drawer support plate to rotate in the sagittal plane, helping to improve the sagittal plane rotation of the calf when the calf is placed in a posture. The movable shaft assembly is provided with a locking piece to fix the position when it is rotated to a satisfactory position. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it should be understood that these drawings are designed only for explanation purposes and are not intended to limit the scope of the present invention. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

[0040] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0041] Figure 2 It is a three-dimensional structural schematic diagram of a calf support plate;

[0042] Figure 3 It is a three-dimensional structural schematic diagram of a drawer support plate;

[0043] Figure 4 It is a three-dimensional structural schematic diagram of a sliding pallet;

[0044] Figure 5 It is a schematic diagram of the top view of the structure of the present invention;

[0045] Figure 6 yes Figure 5 A schematic diagram of the structure of the deformable leg frame in the open state;

[0046] Figure 7 It is a bottom-up structural schematic diagram of the present invention;

[0047] Figure 8 yes Figure 7 A schematic diagram of the enlarged structure of the middle part A;

[0048] Fig. 9 yes Figure 7 The enlarged structural diagram of the middle B part;

[0049] Fig.10 yes Figure 6 Schematic diagram of the structure viewed from above;

[0050] Fig.11 It is a side structural schematic diagram of the present invention;

[0051] Fig.12 yes Fig.11 Schematic diagram of the structure of the calf support plate in a deformed state;

[0052] Fig.13 yes Fig.12 Schematic diagram of the enlarged structure of part C in the middle.

[0053] In the figure: 1. upper body bed, 2. deformable leg frame, 201. thigh support plate, 202. calf support plate, 2021. drawer support plate, 2022. sliding support plate, 2023. slideway, 2024. ratchet layer, 2025. anti-slip grid plate, 203. retractable kit, 2031. arc inner tube, 2032. arc outer tube, 2033. first thread locking member, 3. rotating shaft assembly, 301. rotating shaft, 302. rotating rod, 303. shaft sleeve, 304. control handle rod, 305. third thread locking member, 4. headrest, 5. handrail, 6. movable shaft assembly, 601. connecting member, 602. connecting shaft, 603. second thread locking member. DETAILED DESCRIPTION

[0054] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below by way of example, but all descriptions are only for illustration and should not be understood as limiting the present invention in any way. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature displayed or implied in the drawings, can still be combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned in this document. In addition, in order to simplify the drawings, the same or similar technical features may be marked only in one place in the same drawing.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", "fixation", "screwing" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The present invention is described in detail below with reference to the accompanying drawings.

[0056] Embodiment 1:

[0057] A non-disassembly lithotomy leg bed comprises an upper body bed 1 and two deformable leg frames 2 located on the same plane; wherein the deformable leg frames 2 comprise a thigh support plate 201, a calf support plate 202 and an arc-shaped retractable kit 203 connected therebetween, the retractable kit 203 is preferably semicircular, so that the calf support plate 202 moves along an arc-shaped trajectory with a certain point as the center on the plane where the longitudinal section of the thigh support plate 201 is located, the calf support plate 202 is an anti-slip drawer structure, and the two thigh support plates 201 are respectively connected to the upper body bed 1 through a lockable rotating shaft assembly 3, so that the two thigh support plates 201 can be opened and locked at a certain angle on the plane where the cross section of the upper body bed 1 is located.

[0058] In this embodiment, Figure 1-13 As shown, the leg bed includes an upper body bed body 1 and two deformable leg frames 2 located on the same plane. When the two deformable leg frames 2 are in a non-deformed state, the leg bed can be used as a normal operating bed.

[0059] Wherein: the deformable leg frame is divided into two parts, the upper part is a thigh support plate 201 for placing the patient's thigh, this part is connected to the upper body bed body 1 by a rotating shaft assembly 3, the axis of the rotating shaft assembly is perpendicular to the horizontal plane, with a locking member, and can be rotated in the horizontal plane, so that the deformable leg frame of the lower body can be fixed at any time when helping the patient's legs to abduct at any angle. The lower part of the calf support plate 202 is an anti-reverse sliding drawer structure, which is composed of a drawer support plate 2021 with a ratchet layer (sawtooth slide rail) at the bottom and a sliding support plate 2022 at the top. The sliding support plate 2022 at the top can be pushed toward the patient's head side, and its end (i.e., the foot side) is provided with an anti-slip grid block, which can be rotated in the sagittal plane. When the sliding support plate 2022 slides, the anti-slip grid block can withstand the sawtooth of the slide rail to prevent reverse sliding, and when the sliding support plate 2022 needs to be restored, the anti-slip grid block is rotated to disengage the anti-slip grid block from the sawtooth. Due to the different thigh lengths of different patients, when the calf is raised in the lithotomy position and the thigh is suspended, the sliding support plate 2022 can be pushed toward the patient's head to resist the popliteal fossa, and the fit to the patient's leg can make the leg suspended and fixed more firmly and improve the patient's comfort. The thigh support plate 201 and the calf support plate 202 are connected by a semicircular retractable kit. The retractable kit mainly includes two parts, the outer part is a hollow arc outer tube, which is welded to the bottom of the thigh support plate, and the inner part is an arc inner tube connected to the drawer support plate 2021 by a movable shaft assembly, which allows the drawer support plate to rotate in the sagittal plane, helping the calf to rotate in the sagittal plane when the body is placed, and the movable shaft assembly is provided with a locking member, so that the position can be fixed when it is rotated to a satisfactory position. The arc-shaped inner tube is inserted into the inner side of the arc-shaped outer tube. When it is needed, the inner arc-shaped inner tube part is pulled out from the outer arc-shaped outer tube part, and the semicircular retractable kit is extended, so that the calf tray is suspended and raised, so as to help the patient raise his legs to maintain the lithotomy position. The purpose of designing the retractable kit as a semicircle is to ensure that the arc-shaped inner tube can move around a fixed center of circle during the extension process, which is in line with the physiological characteristics of rotating around the hip joint as the center of the circle when the thigh is raised. A locking piece is also provided between the arc-shaped inner tube and the arc-shaped outer tube to fix the relative position. This leg-rest bed eliminates the inconvenience of disassembling the original bed body and requiring an external leg-rest kit for previous lithotomy surgery. In addition, the bed body can always fit the patient's legs during the deformation process, ensuring the patient's comfort, reducing the risk of fractures, making clinical work more convenient, improving efficiency and reducing risks.

[0060] The specific operation steps are as follows: when surgery is required, the patient lies on the leg support bed, with the upper body located above the upper body bed body, the legs respectively located on two deformable leg supports, the thighs located above the thigh support boards, and the calves located above the calf support boards. First, the two thigh support boards are adjusted to open at a certain angle on the plane where the cross-section of the upper body bed body 1 is located through the rotating shaft assembly 3 and the opening angle is locked. Then the calf support board is adjusted to rotate in its sagittal plane and lock the position. After that, the calf support board can be adjusted through the arc-shaped retractable kit. The support plate moves along an arc-shaped motion trajectory with a certain point as the center on the plane where the longitudinal section of the thigh support plate is located and passes through the locking position, so that the calf support plate is suspended and lifted up, so that the patient raises his legs to maintain the lithotomy position. Finally, the position of the sliding support plate in the drawer support plate is adjusted according to the patient's leg length, so that the sliding support plate 2022 is against the popliteal fossa, that is, when the patient is in the lithotomy position with his calf raised and his thigh suspended in the air, the sliding support plate can be pushed toward the patient's head to press against the popliteal fossa, the leg bed is deformed, and the operation begins.

[0061] Furthermore, in the present embodiment, it can be considered that when the two deformable leg racks 2 are in a non-deformed state, the two deformable leg racks 2 are installed side by side on the foot side of the upper body bed 1, and the upper end surface of the upper body bed 1 is located on the same plane as the upper end surfaces of the thigh support plate 201 and the calf support plate 202. At this time, the leg rack bed can be used as a normal operating bed.

[0062] Furthermore, in the present embodiment, it can be considered that a headrest 4 is fixed to the head side of the upper body bed 1, and handrails 5 are fixed to both sides. The handrails 5 can be used to clamp and install equipment.

[0063] Furthermore, in the present embodiment, it can be considered that the calf support plate 202 includes a drawer support plate 2021 and a sliding support plate 2022 slidably installed in the drawer support plate 2021, and the sliding support plate 2022 is slidably connected to the drawer support plate 2021 through a slide 2023, and the slide 2023 extends along the length direction of the drawer support plate 2021. The upper end surface of the drawer support plate 2021 is provided with a ratchet layer 2024 along its length direction, and the foot side of the sliding support plate 2022 is rotatably provided with an anti-slip baffle plate 2025. When the anti-slip baffle plate 2025 is against one of the ratchets on the ratchet layer 2024, the sliding support plate 202 cannot move toward the foot side of the drawer support plate 2021.

[0064] In this embodiment, Figure 1-4As shown, the calf support plate 202 includes a drawer support plate 2021 and a sliding support plate 2022 slidably mounted in the drawer support plate 2021. The sliding support plate 2022 on the top can be pushed toward the patient's head side, and the foot side thereof is provided with an anti-slip grid block 2025, which can rotate in the sagittal plane. When the sliding support plate 2022 slides, the anti-slip grid block 2025 can resist one of the ratchets on the ratchet layer 2024, thereby preventing reverse sliding. When the position of the sliding support plate 2022 needs to be restored, the anti-slip grid block 2025 is rotated to disengage the anti-slip grid block 2025 from the ratchet layer 2024. This design allows the sliding support plate 2022 to be pushed toward the patient's head side to resist and fit the popliteal fossa when the calf is raised and the thigh is suspended in the lithotomy position according to the different thigh lengths of different patients. Fitting the patient's legs can make the suspended legs more firmly fixed and improve the patient's comfort.

[0065] Furthermore, in the present embodiment, it can be considered that the upper end of the sliding support plate 202 is integrally provided with a leg pad, and the upper end surface of the leg pad is provided with a recessed surface 2026 along its length direction that is adapted to the patient's calf part, which can fit the patient's leg so that the leg can be suspended and fixed more firmly and the patient's comfort is improved.

[0066] Embodiment 2:

[0067] Embodiment 2 of the present invention is further improved on the basis of embodiment 1 so as to give full play to the technical advantages of the present invention, which is described below by way of example.

[0068] For example: Figure 11-13 As shown, the retractable kit 203 includes an arc-shaped inner tube 2031, an arc-shaped outer tube 2032 matched with the outer side of the arc-shaped inner tube 2031, and a first threaded locking member 2033 for fixing the position between the arc-shaped inner tube 2031 and the arc-shaped outer tube 2032. The free end of the arc-shaped inner tube 2031 is connected to the lower end of the drawer support plate 2021 through a lockable movable shaft assembly 6, and the free end of the arc-shaped outer tube 2032 is fixedly connected to the lower end of the thigh support plate 201.

[0069] In this embodiment, the thigh support 201 and the calf support 202 are connected by a semicircular retractable kit 203, which mainly includes two parts. The outer part is a hollow arc-shaped outer tube welded to the bottom of the thigh support, and the inner part is an arc-shaped inner tube connected to the drawer support 2021 by a movable shaft assembly 6. The movable shaft assembly 6 can make the drawer support 2021 rotate in the sagittal plane, which helps to improve the sagittal plane rotation of the calf when the body is placed. The movable shaft assembly is provided with a locking piece, so that the position can be fixed when it is rotated to a satisfactory position.

[0070] like Figure 11-12As shown, the arc-shaped inner tube is inserted into the inner side of the arc-shaped outer tube. When the position of the calf support plate needs to be adjusted, the inner arc-shaped inner tube 2031 is partially pulled out from the outer arc-shaped outer tube 2032, and the semicircular telescopic kit is extended, so that the calf support plate is suspended and lifted up, thereby helping the patient to raise his legs and maintain the lithotomy position. The purpose of designing the telescopic kit as a semicircle is to ensure that the arc-shaped inner tube moves around a fixed center of the circle during the extension process, which is in line with the physiological characteristics of rotating around the hip joint when the thigh is raised. A locking piece is also provided between the arc-shaped inner tube and the arc-shaped outer tube to fix the relative position.

[0071] It should be noted that there are multiple implementation schemes for locking the position between the arc-shaped inner tube 2031 and the arc-shaped outer tube 2032 through the first threaded locking member 2033. For example, one implementation form is: a pair of sliding grooves are opened along the circumferential direction of the arc-shaped outer tube, and the end of the arc-shaped inner tube extending into the arc-shaped outer tube is opened with an inner tube threaded hole that penetrates, and the first threaded locking member 2033 can be but not limited to a large bolt, and the first threaded locking member 2033 penetrates the sliding groove and the inner tube threaded hole and is locked by a nut. Or another implementation form is: a plurality of outer tube threaded holes are opened at intervals along the circumferential direction of the arc-shaped outer tube, and the end of the arc-shaped inner tube extending into the arc-shaped outer tube is opened with an inner tube threaded hole that penetrates, and the first threaded locking member 2033 can be but not limited to a large bolt, and the first threaded locking member 2033 penetrates the outer tube threaded hole and the inner tube threaded hole and is locked by a nut.

[0072] Furthermore, in this embodiment, it can be considered that the movable shaft assembly 6 includes:

[0073] A connecting piece 601, which is an n-shaped metal piece, and the connecting piece 601 is fixed to the lower end of the drawer support plate 2021;

[0074] The connecting shaft 602 is integrally formed at the free end of the arc-shaped inner tube 2031 . The connecting shaft 602 is inserted into the connecting member 601 and is movably connected and locked through the second threaded locking member 603 . The second threaded locking member 603 can be, but is not limited to, a bolt.

[0075] In this embodiment, Figure 12-13 As shown, when it is necessary to adjust the inclination angle of the calf support plate in its sagittal plane, loosen the second threaded locking member 603. At this time, the arc-shaped inner tube 2031 can rotate with the connecting shaft 602 in the connecting member 601, so that the drawer support plate 2021 rotates in the sagittal plane, which helps to improve the sagittal plane rotation of the calf when the calf is placed in a posture. When it is rotated to a satisfactory position, it is tightened on its nut through the second threaded locking member. The n-shaped connecting member 601 is deformed and squeezed on the connecting shaft 602, so that the position between the arc-shaped inner tube and the calf support plate 202 is fixed, thereby fixing the position of the calf support plate.

[0076] Embodiment 3:

[0077] Embodiment 3 of the present invention is further improved on the basis of Embodiment 1 / 2 so as to give full play to the technical advantages of the present invention, which is described below by way of example.

[0078] For example: Figure 5-10 As shown, the rotating shaft assembly 3 includes:

[0079] A rotating shaft 301 is fixed to the lower end of the upper body bed 1, and the axis of the rotating shaft 301 is perpendicular to the upper body bed 1;

[0080] The rotating rod 302 is a metal bending rod, which is located below the upper body bed 1. One end of the rotating rod 302 is rotatably mounted on the rotating shaft 301 through a sleeve 303, and the other end is fixed to the lower end of the thigh support plate 201 through a screw.

[0081] In this embodiment, the axis of the rotating shaft 301 of the rotating shaft assembly 3 is perpendicular to the horizontal plane and fixed to the lower end of the upper body bed body 1. One end of the rotating rod 302 is integrally formed with a sleeve 303 and the sleeve 303 is rotatably mounted on the rotating shaft 301. The other end of the rotating rod 302 is fixed to the lower end of the thigh support plate 201 by a screw. By rotating the sleeve on the rotating shaft, the rotating rod and the deformable leg frame can be driven to rotate in the horizontal plane, so that the deformable leg frame of the lower body can help the patient's legs to be abducted at any angle. In this embodiment, as a preferred embodiment, the rotation angle of the deformable leg frame 2 in the horizontal plane is between 0-120 degrees.

[0082] It should be noted that the two sleeves 303 can also be connected by a transmission assembly so that they can rotate in opposite directions synchronously, so that when the sleeve 303 rotates, the other sleeve 303 will also rotate in opposite directions at the same angle. The transmission assembly can be, but is not limited to, mutually meshing transmission gears, and the two transmission gears are respectively mounted on the outsides of the two sleeves; the transmission assembly can also be a transmission sprocket and a transmission chain, and the two transmission sprockets are respectively mounted on the outsides of the two sleeves and mesh with the transmission chain at the same time, and one of the transmission sprockets is on the inside of the transmission chain, and the other transmission sprocket is on the outside of the transmission chain.

[0083] Furthermore, in the present embodiment, it can be considered that the rotating shaft assembly 3 also includes a control handle rod 304 for locking the position between the sleeve 303 and the rotating shaft 301, and a third threaded locking member 305 is fixed to one end of the control handle rod 304. The third threaded locking member 305 can be but is not limited to a threaded rod. A through screw hole is opened on the sleeve 303 along its radial direction. The third threaded locking member 305 is threadedly installed on the through screw hole and abuts against the rotating shaft 301, so that the deformable leg frame 2 can be fixed at any time when helping the patient's legs to be abducted at any angle.

[0084] In this embodiment, when it is necessary to adjust the opening angle between the two deformable leg frames 2, the control handle rod 304 is reversed to allow the third threaded locking piece 305 to be screwed out toward the outside of the sleeve 303. At this time, the third threaded locking piece 305 does not abut against the rotating shaft 301. The control handle rod 304 is swung back and forth to drive the sleeve to rotate on the rotating shaft, and then drive the rotating rod and the deformable leg frame to rotate in the horizontal plane. After adjusting to a satisfactory position, the control handle rod 304 is turned forward to allow the third threaded locking piece 305 to be screwed inwardly of the sleeve 303. The third threaded locking piece 305 abuts against the rotating shaft 301, so that the deformable leg frame 2 can be fixed at any time when helping the patient to abduct his legs at any angle.

[0085] Embodiment 4:

[0086] An operating method of a disassembly-free lithotomy leg bed comprises the following steps:

[0087] Step 1: When the two deformable leg frames 2 are in a non-deformed state, the leg frame bed is used as a normal operating bed;

[0088] Step 2: Before the operation, the patient lies on the leg support bed, with the head located above the headrest 4, the upper body located above the upper body bed body 1, the legs located on the two deformable leg supports 2, the thighs located above the thigh support board 201, and the calves located above the calf support board 202;

[0089] Step 3: The two thigh support plates 201 can be adjusted to open at a certain angle on the plane where the cross section of the upper body bed body 1 is located by rotating the shaft assembly 3 and the opening angle can be locked by controlling the handle bar 304;

[0090] Step 4: The calf support plate 202 can be adjusted to rotate in the sagittal plane through the movable shaft assembly 6 and locked in position through the second threaded locking member 603;

[0091] Step 5: The calf support plate 202 is adjusted by the telescopic kit 203 to move along an arc motion trajectory with a certain point as the center on the plane where the longitudinal section of the thigh support plate 201 is located, and the position is locked by the first threaded locking member 2033, so that the calf support plate 202 is suspended and lifted up, so that the patient raises his legs to maintain the lithotomy position;

[0092] Step 6: The position of the sliding support plate 2022 in the drawer support plate 2021 is adjusted according to the patient's leg length. By pushing the sliding support plate 2022, the sliding support plate 2022 can be pushed toward the head side of the drawer support plate 2021. After reaching a suitable position, the anti-slip blocking piece 2025 abuts against one of the ratchet teeth on the ratchet layer 2024, and the sliding support plate 2022 cannot move toward the foot side of the drawer support plate 2021, so that when the patient is in the lithotomy position with the lower leg raised and the thigh suspended, the sliding support plate 2022 can be pushed toward the head side of the patient to press against the popliteal fossa;

[0093] Step 7: The leg bed is deformed and the operation begins;

[0094] Step 8: After the operation is completed, reduction is performed;

[0095] First, the anti-skid blocking piece 2025 is manually rotated, the anti-skid blocking piece 2025 is separated from the ratchet layer 2024, and the sliding support plate 202 moves toward the foot side of the drawer support plate 2021 to reset;

[0096] Then, unlock the first thread locking member 2033 and adjust the calf support plate 202 to reset through the telescopic kit 203. After the reset is completed, the position is locked again through the first thread locking member 2033.

[0097] Afterwards, the second threaded locking member 603 is unlocked and the calf support plate 202 is adjusted to reset through the movable shaft assembly 6, and the position is locked again through the second threaded locking member 603 after the reset is completed;

[0098] Finally, the control handle bar 304 is turned to adjust the two thigh support plates 201 to reset through the rotating shaft assembly 3. After the reset is completed, the position is locked by the control handle bar 304, and the leg bed can continue to be used as a normal operating bed.

[0099] The above embodiments describe the present invention in detail, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A non-disassembly lithotomy leg bed, characterized in that: It comprises an upper body bed (1) and two deformable leg frames (2) located on the same plane; The deformable leg support (2) comprises a thigh support plate (201), a calf support plate (202) and an arc-shaped retractable kit (203) connected therebetween, the retractable kit (203) being semicircular, so that the calf support plate (202) moves along an arc-shaped motion trajectory with a certain point as the center of the circle, so that the calf support plate (202) is suspended and lifted up; The calf support plate (202) is an anti-reverse-slip drawer structure, and the calf support plate (202) comprises a drawer support plate (2021) and a sliding support plate (2022) slidably mounted in the drawer support plate (2021). The upper end surface of the drawer support plate (2021) is provided with a ratchet layer (2024) along its length direction. The foot side of the sliding support plate (2022) is provided with an anti-slip barrier plate (2025) for rotation. The sliding support plate (2022) can be pushed toward the head side of the patient. When the legs are raised and the thighs are suspended in the air, the sliding support plate (2022) can be pushed toward the patient's head side to press against the popliteal fossa; when the anti-slip blocking piece (2025) abuts against one of the ratchets on the ratchet layer (224), the sliding support plate (2022) cannot move toward the foot side of the drawer support plate (2021); when it is necessary to restore the position of the sliding support plate (222), the anti-slip blocking piece (2025) is rotated to disengage the anti-slip blocking piece (2025) from contact with the ratchet layer (224); The two thigh support plates (201) are respectively connected to the upper body bed body (1) via lockable rotating shaft assemblies (3), so that the two thigh support plates (201) can be opened and locked at a certain angle; The telescopic kit (203) comprises an arc-shaped inner tube (2031), an arc-shaped outer tube (2032) matched and sleeved on the outside of the arc-shaped inner tube (2031), and a first threaded locking member (2033) for fixing the position between the arc-shaped inner tube (2031) and the arc-shaped outer tube (2032); the free end of the arc-shaped inner tube (2031) is connected to the lower end of the drawer support plate (2021) via a lockable movable shaft assembly (6); and the free end of the arc-shaped outer tube (2032) is fixedly connected to the lower end of the thigh support plate (201); The movable shaft assembly (6) comprises: A connecting piece (601), which is an n-shaped metal piece, and the connecting piece (601) is fixed to the lower end of the drawer support plate (2021); A connecting shaft (602) is integrally formed at the free end of the arc-shaped inner tube (2031); the connecting shaft (602) is inserted into the connecting piece (601) and is movably connected and locked via a second threaded locking piece (603).

2. The non-disassembly lithotomy leg-rest bed according to claim 1, characterized in that: When the two deformable leg frames (2) are in a non-deformed state, the two deformable leg frames (2) are installed side by side on the foot side of the upper body bed (1), and the upper end surface of the upper body bed (1) and the upper end surfaces of the thigh support plate (201) and the calf support plate (202) are located on the same plane.

3. The non-disassembly lithotomy leg-rest bed according to claim 2, characterized in that: A headrest (4) is fixed on the head side of the upper body bed (1), and handrails (5) are fixed on both sides.

4. The non-disassembly lithotomy leg-rest bed according to claim 1, characterized in that: A leg pad is integrally provided at the upper end of the sliding support plate (2022), and a concave surface (2026) adapted to the patient's calf is provided on the upper end surface of the leg pad along its length direction.

5. A non-disassembly lithotomy leg-rest bed according to any one of claims 1 to 4, characterized in that: The rotating shaft assembly (3) comprises: A rotating shaft (301) fixed to the lower end of the upper body bed (1); The rotating rod (302) is a metal bent rod, and is located below the upper body bed (1). One end of the rotating rod (302) is rotatably mounted on the rotating shaft (301) via a shaft sleeve (303), and the other end is fixed to the lower end of the thigh support plate (201) via a screw.

6. The non-disassembly lithotomy leg-rest bed according to claim 5, characterized in that: The rotating shaft assembly (3) further comprises a control handle rod (304) for locking the position between the shaft sleeve (303) and the rotating shaft (301); a third threaded locking member (305) is fixed to one end of the control handle rod (304); a through screw hole is provided on the shaft sleeve (303) along its radial direction; the third threaded locking member (305) is threadedly mounted on the through screw hole and abuts against the rotating shaft (301).

7. An operating method of the non-disassembly lithotomy leg rest as claimed in claim 1, characterized in that: The following steps are involved: Step 1: when the two deformable leg frames (2) are in a non-deformed state, the leg frame bed is used as a normal operating bed; Step 2: Before the operation, the patient lies on the leg support bed, with the head located above the headrest, the upper body located above the upper body bed body (1), the legs respectively located on the two deformable leg supports (2), the thighs located above the thigh support board (201), and the calves located above the calf support board (202); Step 3: The two thigh support plates (201) can be adjusted to open at a certain angle on the plane where the cross-section of the upper body bed (1) is located by the rotating shaft assembly (3) and the opening angle can be locked by controlling the handle bar (304); Step 4: The calf support plate (202) can be adjusted to rotate in its sagittal plane through the movable shaft assembly (6) and locked in position through the second threaded locking member (603); Step 5: The calf support plate (202) is adjusted by the retractable kit (203) to move along an arc-shaped motion trajectory with a certain point as the center on the plane where the longitudinal section of the thigh support plate (201) is located, and the position is locked by the first threaded locking member (2033), so that the calf support plate (202) is suspended and lifted up, so that the patient raises his legs to maintain the lithotomy position; Step 6: The position of the sliding support plate (222) inside the drawer support plate (221) is adjusted according to the patient's leg length. By pushing the sliding support plate (222), the sliding support plate (222) can be pushed toward the head side of the drawer support plate (2021). After reaching a suitable position, the anti-slip blocking piece (225) abuts against one of the ratchet teeth on the ratchet layer (224), and the sliding support plate (222) cannot move toward the foot side of the drawer support plate (2021). When the patient is in the lithotomy position with the lower leg raised and the thigh suspended, the sliding support plate (222) can be pushed toward the head side of the patient to press against the popliteal fossa; Step 7: The leg bed is deformed and the operation begins; Step 8: After the operation is completed, reduction is performed; First, the anti-slip barrier sheet (2025) is manually rotated, the anti-slip barrier sheet (2025) is disengaged from the ratchet layer (224), and the sliding support plate (222) moves toward the foot side of the drawer support plate (2021) to reset; Then, the first threaded locking member (2033) is unlocked and the calf support plate (202) is adjusted to reset through the telescopic kit (203), and after the reset is completed, the position is locked again through the first threaded locking member (2033); Afterwards, the second threaded locking member (603) is unlocked and the calf support plate (202) is adjusted to reset through the movable shaft assembly (6), and after the reset is completed, the position is locked again through the second threaded locking member (603); Finally, the control handle bar (304) is rotated to adjust the two thigh support plates (201) to reset through the rotating shaft assembly (3). After the reset is completed, the position is locked through the control handle bar (304), and the leg bed can continue to be used as a normal operating bed.

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