Rapid operation pose adjusting device

Abstract

The invention relates to an operating bed. The invention aims to provide a quick operation pose adjusting device which comprises a bed body composed of a plurality of functional sections, and each functional section is composed of a frame body and a surface layer arranged on the surface of the frame body; the frame bodies of every two adjacent functional sections are in running fit through a rotating head, and the angle between the functional sections is adjusted through the rotating heads. The rotating head comprises two rotating cylinders, the two rotating cylinders are perpendicular to each other, and the middle sections of the two rotating cylinders are connected through a middle cylinder; a rotating body is coaxially arranged in the center of the rotating cylinder, and a center shaft of the rotating body penetrates out of the two ends of the rotating cylinder and is in rotating fit with the rotating cylinder. By means of the simple structure, large-range rapid adjustment between the functional sections can be achieved, and the adjusting speed can be effectively controlled.

Description

Technical Field

[0001] The invention relates to an operating table, in particular to a lithotomy position operating table. Background Art

[0002] The lithotomy position is a very common surgical position in general surgery, gynecology, urology and other departments. The patient lies on his back on the operating table and is anesthetized first. The operating nurse places T-shaped leg rests on both sides of the rear end of the operating table. The leg rests are used to lift and support the patient's legs separately. After the legs are placed, a section of the rear end of the operating table that was originally used to support the legs in the supine position is removed to avoid obstructing the operation and to fully expose the patient's perineum for surgery.

[0003] Since lithotomy surgery is performed under anesthesia, the patient loses part or all of his consciousness and is unable to actively cooperate with medical staff to adjust his posture. In the process of adjusting his posture from supine to lithotomy position, he relies on nurses to perform manual operations. Since the leg rest, the tail section of the operating table, etc. have a certain weight, during multiple surgeries, this frequent posture switching will generate a large amount of physical workload, and in order to improve work efficiency, at least two nurses are often required to cooperate in the operation.

[0004] At present, there are some operating tables for lithotomy position surgery in the prior art. The tail section of the operating table is installed in a hinged manner, and can be driven by a motor or manually rotated to drive the screw, gear, rack and other drive systems and transmission systems to achieve the position and angle adjustment of the tail section (leg support section) of the operating table. However, since the leg support section has at least two-way freedom adjustment of left and right swing and up and down swing, its drive system and transmission system are often more complicated, which also leads to the high cost of the operating table.

[0005] Therefore, how to achieve effective support for the patient's legs and rapid switching between lithotomy position and supine position in a simple and effective way is still an important issue in this field. Summary of the invention

[0006] The object of the present invention is to provide a surgical posture rapid adjustment device with high adjustment freedom and convenient operation.

[0007] To achieve the above-mentioned invention object, the technical solution adopted by the present invention is: a surgical posture rapid adjustment device, comprising a bed body composed of a plurality of functional segments, wherein the functional segments are composed of a frame body and a surface layer arranged on the surface of the frame body; the frames of two adjacent functional segments are rotationally matched through a rotating head, and the angle between the functional segments is adjusted through the rotating head;

[0008] The rotating head comprises two rotating cylinders, which are perpendicular to each other and connected in the middle sections by an intermediate cylinder; a rotating body is coaxially arranged at the center of the rotating cylinder, and the central axis of the rotating body passes through the two ends of the rotating cylinder and forms a rotational fit with the rotating cylinder; a fixed partition extending along the radial direction of the rotating cylinder is arranged inside the rotating cylinder close to the intermediate cylinder, and a first sealing strip is arranged on the inner edge of the fixed partition, and a sliding fit is formed with the rotating body through the first sealing strip; a movable partition extending along the radial direction of the rotating cylinder is arranged on the side of the rotating body facing away from the intermediate cylinder, and a second sealing strip is arranged on the outer edge of the movable partition, and a second sealing strip is formed through the second sealing strip. The two sealing strips form a sliding fit with the rotating cylinder; the fixed partition and the movable partition divide the inner cavity of the rotating cylinder into two liquid cavities, and the liquid cavities are filled with resistance liquid; the fixed partition is provided with a main through hole that penetrates the two liquid cavities, and the fixed partition is also provided with a slot connected to the intermediate cylinder, and the slot is adapted to be equipped with a plug plate that forms a sliding fit with the slot, and the intermediate cylinder is provided with a driving mechanism, and the plug plate can slide in the slot under the drive of the driving mechanism; the plug plate is also provided with an adjustment hole, and by adjusting the overlapping area of ​​the main through hole and the adjustment hole, the flow speed of the resistance liquid in the two liquid cavities can be changed to adjust the adjustment speed.

[0009] Preferably, the driving mechanism includes two driving pistons arranged in the intermediate cylinder and slidingly matched with the intermediate cylinder, a driving cylinder is arranged on the side wall of the intermediate cylinder between the driving pistons, the intermediate cylinder between the driving pistons and the driving cylinder are filled with driving liquid, and the driving cylinder is connected to the driving member through an oil circuit; the plug plate is fixedly arranged on the side of the driving piston facing the rotating cylinder.

[0010] Preferably, a return spring is further arranged in the middle cylinder on the side of the driving piston facing the rotating cylinder, and the return spring is clamped between the driving piston and the outer side wall of the rotating cylinder.

[0011] Preferably, a gas exhaust hole is further provided on the side wall of the intermediate cylinder, and the gas exhaust hole is used to exhaust the gas in the intermediate cylinder when the piston is driven to move toward the rotating cylinder.

[0012] Preferably, the functional section includes a trunk support section, a thigh support section and a calf support section; the frames at the end of the trunk support section and the front end of the thigh support section are connected to each other through a first rotating head; the frames of the thigh support section and the calf support section are connected to each other through a second rotating head.

[0013] Preferably, the adjustment hole is in the shape of a water drop that gradually becomes smaller from one end to the other end.

[0014] Preferably, the driving member is a foot-operated oil pump, a multi-way reversing valve is provided on the oil circuit, and the multi-way reversing valve is respectively connected to the driving cylinders of the first rotating head and the second rotating head.

[0015] Preferably, a U-shaped clip is provided at the end of the frame of the functional section, and two ends of the U-shaped clip are respectively sleeved on two ends of the central axis of the rotating body and are fixedly connected to the central axis.

[0016] Preferably, a section of the center axis located outside the rotating cylinder is in the shape of a hexagonal prism, and a threaded column is provided at the center of the end; the end of the U-shaped clip is provided with a bite that matches the section of the hexagonal prism of the center axis, and snap-ons are also provided on both sides of the bite, and a wedge is provided in the snap-on; the wedge and the root of the bite together form a hexagonal enclosed area for the center axis to be inserted; and it also includes a clamping nut that matches the threaded column, and the end of the U-shaped clip and the wedge are clamped on the center axis by the clamping nut.

[0017] Preferably, a concave buttocks positioning groove is further provided at a position of the trunk supporting section opposite to the patient's buttocks.

[0018] The beneficial effects of the present invention are concentrated in that a large range of rapid adjustments between functional segments can be achieved through a simple structure, and the adjustment speed can be effectively controlled. Specifically, during the use of the present invention, the patient first lies on the operating table in a supine position to make preoperative preparations and anesthesia. After the preoperative preparations are ready, when it is necessary to switch to the lithotomy position, the drive mechanism drives the plug plate to move in the slot so that the adjustment hole is connected to the main through hole. At this time, since the resistance liquid in the two liquid chambers can flow between the two liquid chambers through the adjustment hole and the main through hole, the rotating body is in a rotatable state relative to the rotating cylinder and can be rotated and adjusted; the nurse can support and drag the functional segment by hand until the functional segment moves to the position required for the lithotomy position. Release the drive mechanism, and the plug plate retreats to the position where the adjustment hole and the main through hole are staggered. At this time, the resistance liquid in the liquid chamber can no longer flow, forming a lock on the rotating head. During the adjustment process, since the resistance fluid can maintain the counter-resistance in real time, the counter-resistance forces such as the equipment's own gravity and the patient's body gravity are mainly offset by the resistance fluid, and the nurse is more relaxed and convenient when making adjustments. Only a small external force is required to adjust the angle of the functional segment. After adopting the posture adjustment device of the present invention, there is no need to set up a leg stand separately, and the operating table can be directly used to quickly adjust the patient's posture, which is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view structural schematic diagram of the present invention;

[0020] Figure 2 for Figure 1 A side view of the structure described in;

[0021] Figure 3 It is a structural schematic diagram of the rotating head of the present invention;

[0022] Figure 4for Figure 3 AA sectional view of the structure shown in;

[0023] Figure 5 It is a structural schematic diagram of a preferred combination of an adjustment hole and a main through hole;

[0024] Figure 6 It is the oil circuit block diagram of the present invention. DETAILED DESCRIPTION

[0025] like Figure 1-5 As shown, a surgical posture rapid adjustment device is mainly used for lithotomy surgery, so as to realize posture switching adjustment from the supine position prepared before surgery to the lithotomy position. Of course, it is not limited to the application in the surgical posture adjustment of the lithotomy position, and any angle adjustment between two or more functional segments can use a similar structure of the present invention.

[0026] Specifically, the present invention includes a bed body composed of multiple functional segments, each of which is composed of a frame 1 and a surface layer 2 arranged on the surface of the frame 1. The frame 1 is generally made of a lightweight high-strength alloy, such as aluminum alloy, and the surface layer 2 is used as a contact layer with the patient, which generally includes a base plate made of lightweight high-strength plastic and a flexible layer attached to the surface of the base plate to improve the comfort of contact. The frames 1 of two adjacent functional segments are rotatably matched through a rotating head, and the angle between the functional segments is adjusted by the rotating head. The rotating head has dual rotation functions of horizontal lateral rotation and vertical pitch rotation at the same time, and has a wide range of adjustable performance.

[0027] When used in lithotomy position, Figure 1 and 2 As shown in , the functional segment usually includes a trunk support segment 21, a thigh support segment 22 and a calf support segment 23. As the name implies, the trunk support segment 21 is used to support the patient's trunk part. As the main load-bearing structure, the thigh support segment 22 and the calf support segment 23 are used to support the patient's thigh and calf respectively. Of course, due to certain differences in the body shape of patients, the thigh support segment 22 usually adopts a two-section structure, and the two sections have the function of telescopic adjustment, which is usually achieved through a two-section frame. Since this structure is relatively conventional, it will not be repeated in the present invention. The frame 1 at the end of the trunk support segment 21 and the front end of the thigh support segment 22 is connected to each other through a first rotating head 24. The frame 1 of the thigh support segment 22 and the calf support segment 23 is connected to each other through a second rotating head 25. The two groups of thigh support segments 22 and calf support segments 23 correspond to the two legs of the patient respectively.

[0028] A concave buttocks positioning groove 30 can also be provided at the position of the trunk supporting section 21 relative to the patient's buttocks to make the patient more comfortable and stable when lying down, and straps for restraining and binding the patient's legs are generally provided on the calf and calf supporting sections to improve stability in various postures.

[0029] As the core point of the present invention, combined with Figure 3 and 4 As shown in , the rotating head includes two rotating cylinders 3, the projections of the two rotating cylinders 3 in the length direction of the rotating head are perpendicular to each other, and the middle sections of the two rotating cylinders are connected by an intermediate cylinder 4. The intermediate cylinder 4 serves as a connecting section between the two on the one hand, and also as a mounting area for the driving mechanism on the other hand.

[0030] The rotation of the present invention is realized in the following manner: a rotating body 5 is coaxially arranged at the center of the rotating cylinder 3, and the central axis 6 of the rotating body 5 passes through both ends of the rotating cylinder 3 and forms a rotational fit with the rotating cylinder 3. The functional section is connected to the rotating body 5, and the angle is adjusted by the relative rotation of the rotating body 5 and the rotating cylinder 3.

[0031] The rotation control form (i.e. locking or speed regulation form) is as follows: Figure 4 As shown in the figure, a fixed partition 7 extending radially along the rotating cylinder 3 is arranged on the side of the rotating cylinder 3 close to the intermediate cylinder 4, a first sealing strip 8 is arranged on the inner edge of the fixed partition 7, and a sliding fit is formed with the rotating body 5 through the first sealing strip 8. A movable partition 9 extending radially along the rotating cylinder 3 is arranged on the side of the rotating body 5 facing away from the intermediate cylinder 4, a second sealing strip 10 is arranged on the outer edge of the movable partition 9, and a sliding fit is formed with the rotating cylinder 3 through the second sealing strip 10. The fixed partition 7 and the movable partition 9 divide the inner cavity of the rotating cylinder 3 into two liquid cavities, and the liquid cavities are filled with resistance liquid 11.

[0032] The fixed partition plate 7 is provided with a main through hole 12 penetrating through the two liquid chambers, and the fixed partition plate 7 is also provided with a slot 13 communicating with the intermediate tube 4, and the slot 13 is adapted with a plug plate 14 which forms a sliding fit with the slot 13, and the intermediate tube 4 is provided with a driving mechanism, and the plug plate 14 can slide in the slot 13 under the drive of the driving mechanism. The plug plate 14 is also provided with an adjustment hole 15, and by adjusting the overlapping area of ​​the main through hole 12 and the adjustment hole 15, the flow speed of the resistance liquid 11 in the two liquid chambers can be changed to adjust the adjustment speed.

[0033] During the use of the present invention, the patient first lies on the operating table in a supine position to make preoperative preparations and anesthesia. After the preoperative preparations are ready, when it is necessary to switch to the lithotomy position, the plug plate 14 is driven by the driving mechanism to move in the slot 13, so that the adjustment hole 15 is connected with the main through hole 12. At this time, since the resistance liquid 11 in the two liquid chambers can flow between the two liquid chambers through the adjustment hole 15 and the main through hole 12, the rotating body 5 is in a rotatable state relative to the rotating cylinder 3 and can be rotated and adjusted; the nurse can support and drag the functional segment by hand until the functional segment moves to the position required for the lithotomy position. The driving mechanism is released, and the plug plate 14 retreats to the position where the adjustment hole 15 and the main through hole 12 are staggered. At this time, the resistance liquid in the liquid chamber can no longer flow, forming a lock on the rotating head.

[0034] In the process of adjustment of the present invention, since the resistance liquid can maintain the counter-resistance in real time, the counter-resistance forces such as the equipment's own gravity and the patient's body gravity are mainly offset by the resistance liquid. When the nurse makes the adjustment, it is easier and more convenient as a whole. Only a small external force is needed to adjust the angle of the functional segment. After adopting the posture adjustment device described in the present invention, there is no need to set up a leg stand separately. The operating bed can be directly used to achieve rapid adjustment of the patient's posture, which is more efficient. The resistance liquid 11 is used as the key ring for locking and speed bar holes in the present invention. It generally adopts a non-Newtonian fluid with a higher viscosity. When it is subjected to instantaneous impact, it does not have fluidity, that is, it cannot flow under sudden impact, so that the rotating head is in a locked state as a whole to prevent collision or accidental touch.

[0035] Regarding the driving mechanism of the present invention, its function is mainly to drive the movement of the plug plate 14 to achieve unlocking and locking. The driving mechanism includes two driving pistons 16 arranged in the intermediate cylinder 4 and forming a sliding fit with the intermediate cylinder 4. A driving cylinder 17 is arranged on the side wall of the intermediate cylinder 4 between the driving pistons 16. The intermediate cylinder 4 between the driving pistons 16 and the driving cylinder 17 are filled with driving liquid 18. The driving cylinder 17 is connected to the driving member through an oil circuit. The plug plate 14 is fixedly arranged on the side of the driving piston 16 facing the rotating cylinder 3. When in use, the driving member pumps the driving liquid 18 into the driving cylinder 17 to push the driving piston 16 to move, thereby driving the movement of the plug plate 14. The present invention is in a locked state under normal conditions, that is, when the driving member is not working, the position of the plug plate 14 is at the initial position, and the adjustment hole 15 and the main through hole 12 are in a staggered state. When unlocking, the driving member needs to pump the driving liquid 18, and the driving liquid 18 pushes the driving piston 16, so that the plug plate 14 reaches the working position (that is, the position where the adjustment hole 15 and the main through hole 12 have overlapping conduction). And by changing the size of the overlapping range, the upper limit speed of the adjustment can be changed, so as to achieve fine adjustment or preliminary adjustment. A better double hole matching form is that the adjustment hole 15 is in the shape of a water drop that gradually becomes smaller from one end to the other end, and the main through hole 12 is a simple round hole, so that the adjustable range of the overlapping connection range of the two is larger.

[0036] Of course, in order to maintain the position of the plug plate 14 under normal conditions so that it can be stably in the locked position, in a preferred embodiment of the present invention, a reset spring 19 is further provided in the intermediate cylinder 4 on the side of the driving piston 16 facing the rotating cylinder 3. The reset spring 19 is clamped between the driving piston 16 and the outer wall of the rotating cylinder 3. The driving piston 16 can be driven to reset by the reset spring 19, thereby driving the plug plate 14 to reset. In order to prevent the driving piston 16 from forming a dead air cavity in the inner cavity of the intermediate cylinder 4 between it and the rotating cylinder 3 during the movement, thereby hindering the movement, the present invention further provides an exhaust hole 20 on the side wall of the intermediate cylinder 4. The exhaust hole 20 is used to exhaust the gas in the intermediate cylinder 4 when the driving piston 16 moves toward the rotating cylinder 3.

[0037] Regarding the specific form of the driving member of the present invention, it can be either an electric oil pump or a pedal oil pump. A multi-way reversing valve is provided on the oil circuit, and the multi-way reversing valve is respectively connected to the driving cylinder 17 of the first rotating head 24 and the second rotating head 25. Through the setting of the multi-way reversing valve, in conjunction with the oil pump, one oil pump can control multiple rotating heads. Of course, under the premise of satisfying the functions, it is also feasible to replace the entire set of oil circuits and driving fluids with gas circuits or high-pressure gas.

[0038] In addition, in order to ensure the connection stability between the frame 1 of the functional segment and the rotating body 5, as shown in FIG. Figure 3As shown in the figure, the end of the frame 1 of the functional section is provided with a U-shaped card 26, and the two ends of the U-shaped card 26 are respectively sleeved on the two ends of the central axis 6 of the rotating body 5, and are fixedly connected with the central axis 6, and can be directly locked by a nut after being sleeved. However, in order to facilitate assembly and subsequent maintenance and care, a section of the central axis 6 located outside the rotating cylinder 3 is in the shape of a hexagonal prism, and a threaded column 27 is provided at the center of the end. The end of the U-shaped card 26 is provided with a bite 28 that matches a section of the hexagonal prism of the central axis 6, and the two sides of the mouth of the bite 28 are also provided with a bayonet, and a wedge 29 is provided in the bayonet. The wedge 29 and the root of the bite 28 together form a hexagonal enclosure for the central axis 6 to be inserted. It also includes a clamping nut that matches the threaded column 27, and the end of the U-shaped card 26 and the wedge 29 are clamped on the central axis 6 through the clamping nut. Since the structure of the clamping nut is relatively simple, it is not shown in the figure to avoid interference with the illustration. In essence, it is a nut that clamps and fixes the wedge block 29 and the U-shaped clip 26 on the hexagonal prism segments at both ends of the central axis 6.

Claims

1. A surgical posture rapid adjustment device, characterized in that: The invention comprises a bed body composed of a plurality of functional segments, wherein the functional segments are composed of a frame body (1) and a surface layer (2) arranged on the surface of the frame body (1); the frames (1) of two adjacent functional segments are rotationally matched through a rotating head, and the angle between the functional segments is adjusted through the rotating head; The rotating head comprises two rotating cylinders (3), the two rotating cylinders (3) are perpendicular to each other, and the middle sections of the two rotating cylinders are connected by an intermediate cylinder (4); a rotating body (5) is coaxially arranged at the center of the rotating cylinder (3), and the central axis (6) of the rotating body (5) passes through the two ends of the rotating cylinder (3) and forms a rotational fit with the rotating cylinder (3); a fixed partition (7) extending radially along the rotating cylinder (3) is arranged inside the side of the rotating cylinder (3) close to the intermediate cylinder (4), and a first sealing strip (8) is arranged on the inner edge of the fixed partition (7), and a sliding fit is formed with the rotating body (5) through the first sealing strip (8); a movable partition (9) extending radially along the rotating cylinder (3) is arranged on the side of the rotating body (5) facing away from the intermediate cylinder (4), and a second sealing strip (10) is arranged on the outer edge of the movable partition (9), and a second sealing strip (10) is formed on the outer edge of the movable partition (9), and a second sealing strip (10) is formed on the outer edge of the movable partition (9), and a second sealing strip (10) is formed on the outer edge of the movable partition (9). 10) forms a sliding fit with the rotating cylinder (3); the fixed partition (7) and the movable partition (9) divide the inner cavity of the rotating cylinder (3) into two liquid cavities, and the liquid cavities are filled with resistance liquid (11); the fixed partition (7) is provided with a main through hole (12) penetrating the two liquid cavities, and the fixed partition (7) is also provided with a slot (13) connected to the intermediate cylinder (4), and the slot (13) is adapted to be equipped with a plug plate (14) that forms a sliding fit with the slot (13), and the intermediate cylinder (4) is provided with a driving mechanism, and the plug plate (14) can slide in the slot (13) under the drive of the driving mechanism; the plug plate (14) is also provided with an adjustment hole (15), and by adjusting the overlapping area of ​​the main through hole (12) and the adjustment hole (15), the flow speed of the resistance liquid (11) in the two liquid cavities can be changed to form an adjustment of the adjustment speed.

2. The surgical posture rapid adjustment device according to claim 1, characterized in that: The driving mechanism comprises two driving pistons (16) arranged in the intermediate cylinder (4) and forming a sliding fit with the intermediate cylinder (4); a driving cylinder (17) is arranged on the side wall of the intermediate cylinder (4) between the driving pistons (16); the intermediate cylinder (4) between the driving pistons (16) and the driving cylinder (17) are both filled with driving liquid (18); the driving cylinder (17) is connected to the driving member through an oil circuit; and the plug plate (14) is fixedly arranged on a surface of the driving piston (16) facing the rotating cylinder (3).

3. The surgical posture rapid adjustment device according to claim 2, characterized in that: A return spring (19) is also arranged in the middle cylinder (4) on the side of the driving piston (16) facing the rotating cylinder (3), and the return spring (19) is clamped between the driving piston (16) and the outer side wall of the rotating cylinder (3).

4. The surgical posture rapid adjustment device according to claim 3, characterized in that: An exhaust hole (20) is also provided on the side wall of the intermediate cylinder (4). The exhaust hole (20) is used to exhaust the gas in the intermediate cylinder (4) when the piston (16) is driven to move toward the rotating cylinder (3).

5. The surgical posture rapid adjustment device according to claim 4, characterized in that: The functional section comprises a trunk support section (21), a thigh support section (22) and a calf support section (23); the frame (1) at the end of the trunk support section (21) and the front end of the thigh support section (22) are connected to each other via a first rotating head (24); the frame (1) of the thigh support section (22) and the frame (1) of the calf support section (23) are connected to each other via a second rotating head (25).

6. The surgical posture rapid adjustment device according to claim 5, characterized in that: The regulating hole (15) is in the shape of a water drop that gradually becomes smaller from one end to the other end.

7. The surgical posture rapid adjustment device according to claim 6, characterized in that: The driving member is a pedal-type oil pump. A multi-way reversing valve is provided on the oil circuit, and the multi-way reversing valve is respectively connected to the driving cylinders (17) of the first rotating head (24) and the second rotating head (25).

8. The surgical posture rapid adjustment device according to claim 7, characterized in that: A U-shaped clip (26) is provided at the end of the frame (1) of the functional section, and the two ends of the U-shaped clip (26) are respectively sleeved on the two ends of the central axis (6) of the rotating body (5) and are fixedly connected to the central axis (6).

9. The surgical posture rapid adjustment device according to claim 8, characterized in that: The section of the central axis (6) located outside the rotating cylinder (3) is in the shape of a hexagonal prism, and a threaded column (27) is arranged at the center of the end; the end of the U-shaped clamp (26) is provided with a bite (28) matching with the section of the hexagonal prism of the central axis (6), and the two sides of the mouth of the bite (28) are also provided with a snap-in, and a wedge (29) is arranged in the snap-in; the wedge (29) and the root of the bite (28) together form a hexagonal enclosure area for the central axis (6) to be snapped in; and it also includes a clamping nut matching with the threaded column (27), and the end of the U-shaped clamp (26) and the wedge (29) are clamped on the central axis (6) through the clamping nut.

10. The surgical posture rapid adjustment device according to claim 9, characterized in that: A concave buttocks positioning groove (30) is also provided at a position of the trunk supporting section opposite to the patient's buttocks.

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