Examination bed for urodynamic examination

Abstract

The invention provides an examination bed for urodynamic examination. The examination bed comprises a bed frame, a bottom supporting plate, a back supporting plate, leg supporting pieces and a driving device. The bottom supporting plate is arranged on the bed frame and used for supporting the buttocks and the thighs of the patient. The end of the back supporting plate is rotationally connected with the end of the bottom supporting plate, and the back supporting plate is used for supporting the back and the head of the patient. The two leg supporting pieces are located on the outer side of the end, away from the back supporting plate, of the bottom supporting plate, and the leg supporting pieces can move transversely and vertically. The leg supporting piece is lower than the bottom supporting plate when not used. The driving device is used for driving the two leg supporting pieces to move and further used for driving the back supporting plate to rotate. Through driving of the driving device, the back supporting plate rotates relative to the bottom supporting plate, so that a patient is gradually converted into a lying posture from a sitting posture, meanwhile, after the driving device drives the leg supporting piece to ascend, the height of the leg supporting piece is higher than that of the bottom supporting plate, the private part and the anus of the patient are exposed, and convenience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to an examination bed for urodynamic examination. Background Art

[0002] Urodynamics is a branch of urology that is used to detect pressure, flow rate, and bioelectric activity in various parts of the urinary tract.

[0003] In practice, urodynamic examinations use a corresponding examination bed. Patients drink 500 ml of boiled water before the examination. When the bladder is swollen and the patient is in a hurry to urinate, the patient needs to lie on his back on the examination bed in the lithotomy position, that is, lift both legs to the support frames on both sides of the examination bed to fully expose the genitals and anus, so that the doctor can insert the two pressure measuring tubes used for the examination into the patient's bladder and rectum respectively. During this process, when the patient is lying on his back, it is not very convenient to raise the calf to the support frame position on his own, and medical staff are needed to assist. In addition, the bladder is swollen at this time, and the thigh will bend and compress the bladder when the calf is lifted. The patient is uncomfortable when completing this action, which makes it more difficult and inconvenient to complete the action. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an examination bed for urodynamic examination, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems in the prior art.

[0005] The present invention provides an examination bed for urodynamic examination, comprising:

[0006] bedstead;

[0007] A bottom support plate, arranged on the bed frame, for supporting the buttocks and thighs of the patient;

[0008] A back support plate, the ends of which are rotatably connected to the ends of the bottom support plate, for supporting the back and head of the patient;

[0009] Two leg supports are provided, located outside one end of the bottom support plate away from the back support plate, used to support the patient's calves, and the leg supports can move laterally and vertically; and

[0010] The driving device is used for driving the two leg supports to move and also for driving the back support plate to rotate.

[0011] Preferably, the driving device comprises:

[0012] A driving block is disposed on the bed frame in a transversely sliding manner and is located below the bottom support plate;

[0013] Two back support arms are symmetrically arranged on both sides of the bottom support plate, one end of each back support arm is rotatably connected to the driving block, and the other end of each back support arm is rotatably connected to the side surface of the back support plate;

[0014] A driven ring connected to the lower end of the driving block;

[0015] A motor, arranged on the bed frame; and

[0016] The rotating shaft has one end connected to the output end of the motor and the other end passing through the driven ring and being threadedly connected thereto.

[0017] Preferably, the driving device further comprises two symmetrically arranged driving mechanisms; the two driving mechanisms are located on both sides of the bottom support plate;

[0018] The driving mechanism comprises:

[0019] A first rod, connected to the driving block, with its axis perpendicular to the moving direction of the driving block;

[0020] A second rod connected to an end of the first rod away from the driving block and arranged vertically;

[0021] a connecting arm, one end of which is rotatably connected to the end of the second rod away from the first rod, and the other end of which is connected to the leg support member; and

[0022] The third rod is rotatably connected to the middle part of the connecting arm, arranged vertically, and can move up and down.

[0023] Preferably, the driving block is provided with a first mounting hole and a second mounting hole; a first rotating rod is coaxially rotatably arranged in the first mounting hole; a second rotating rod is coaxially rotatably arranged in the second mounting hole; and the third rod is located between the first rotating rod and the second rotating rod;

[0024] The driving mechanism further comprises:

[0025] A first gear coaxially sleeved on the first rotating rod;

[0026] A first rack, arranged on the bed frame, located below the first gear and meshing with the first gear;

[0027] A second rack is vertically arranged on the corresponding side surface of the third rod;

[0028] A second gear is coaxially sleeved on the second rotating rod and meshes with the second rack; and

[0029] The linkage mechanism can drive the second rotating rod to rotate by virtue of the rotation of the first rotating rod, and can also keep the second rotating rod stationary relative to the driving block.

[0030] Preferably, the linkage mechanism comprises:

[0031] A driving cylinder is coaxially connected to the end of the first rotating rod, and a plurality of evenly distributed first tooth grooves are formed on the outer circumference of the driving cylinder, and a third mounting hole is formed on both sides of each of the first tooth grooves;

[0032] A driving ring, sleeved outside the first rotating rod, and movable in the axial direction;

[0033] A plurality of sliders are connected to the driving ring, and the sliders are slidably arranged in the first tooth grooves correspondingly, and a surface of the sliders away from the bottom of the first tooth groove is coplanar with the outer wall curved surface of the driving cylinder;

[0034] A plurality of driving rods are connected to the driving ring, each of the driving rods is slidably matched with the corresponding third mounting hole, and a driving space is formed when the two driving rods between each two first tooth grooves slide out of the third mounting hole;

[0035] A driven cylinder coaxially connected to the end of the second rotating rod;

[0036] a plurality of first gear teeth connected to the outer wall of the driven cylinder and distributed along the outer circumference of the driven cylinder, wherein the first gear teeth can mesh with the corresponding first tooth grooves, and the first gear teeth can abut against the corresponding slider; and

[0037] A plurality of second gear teeth are connected to the outer wall of the driven cylinder and distributed along the outer circumference of the driven cylinder. The second gear teeth can be inserted into the corresponding driving space.

[0038] Preferably, the linkage mechanism further comprises:

[0039] A sliding ring, which is slidably sleeved on the first rotating rod;

[0040] One or more connecting plates, one end of which is connected to the outer wall of the sliding ring and the other end of which is connected to the inner wall of the driving ring;

[0041] a retaining ring, sleeved on the first rotating rod and slidable along the axial direction of the first rotating rod; and

[0042] The spring is sleeved on the first rotating rod, one end of which is connected to the retaining ring, and the other end of which is connected to the connecting plate.

[0043] Preferably, the driving block is further connected to a fixing ring; a control rod is rotatably arranged inside the fixing ring; and a coaxial control ring is connected to the outside of the retaining ring;

[0044] The linkage mechanism also includes:

[0045] A square column connected to a side surface of the driving block;

[0046] A square cylinder is slidably mounted on the square column; and

[0047] A limiter, one end of which is threadedly sleeved on the control rod through an opening, and the other end of which is provided with a vertical control groove;

[0048] The control ring is located in the control groove.

[0049] Preferably, the end of the connecting arm is rotatably connected to the middle portion of the leg support.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] In the technology of the present invention, the back support plate rotates relative to the bottom support plate through the drive of the driving device, so that the patient gradually changes from a sitting position to a lying position. At the same time, after the driving device drives the leg support to rise, the height of the leg support is higher than the bottom support plate, so that the patient's genitals and anus are exposed, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0053] Figure 1 It is a stereoscopic diagram of an examination bed for urodynamic examination in one embodiment of the present invention;

[0054] Figure 2 for Figure 1 Another stereogram of (looking up);

[0055] Figure 3 for Figure 1 Another stereogram of (without bottom support plate);

[0056] Figure 4 for Figure 3 Another stereogram of (retaining the driving mechanism on one side);

[0057] Figure 5 for Figure 3 Enlarged schematic diagram of the middle drive block;

[0058] Figure 6 for Figure 4 Another stereogram of (without back support board);

[0059] Figure 7 for Figure 6 Another stereogram of

[0060] Figure 8 for Figure 7 A stereogram of ;

[0061] Fig. 9 for Figure 8 Another stereogram of

[0062] Fig.10 for Figure 8 Another stereogram of

[0063] Fig.11 for Figure 8 Another stereogram of (cut at the retaining ring);

[0064] Fig.12 for Figure 1 Another three-dimensional image of (including pedals and handrails).

[0065] Reference numerals:

[0066] 101. bed frame; 102. bottom support plate; 103. back support plate; 104. leg support member;

[0067] 201, driving device; 201, driving block; 202, back support arm; 203, driven ring; 204, motor; 205, rotating shaft; 206, first mounting hole; 207, second mounting hole; 208, first rotating rod; 209, second rotating rod; 210, fixing ring; 211, control rod;

[0068] 301, driving mechanism; 302, first rod; 303, second rod; 304, connecting arm; 305, third rod; 306, first gear; 307, first rack; 308, second rack; 309, second gear;

[0069] 401, linkage mechanism; 402, driving cylinder; 403, first tooth groove; 404, third mounting hole; 405, driving ring; 406, slider; 407, driving rod; 408, driven cylinder; 409, first gear teeth; 410, second gear teeth; 411, sliding ring; 412, connecting plate; 413, retaining ring; 414, spring; 415, control ring; 416, square column; 417, square tube; 418, limiter; 419, control groove;

[0070] 501. Handrail; 502. Pedal. DETAILED DESCRIPTION

[0071] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0072] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0073] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0074] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0075] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0077] See also Figures 1 to 12 This embodiment provides an examination bed for urodynamic examination, including a bed frame 101, a bottom support plate 102, a back support plate 103, a leg support 104 and a driving device 201.

[0078] The bottom support plate 102 is arranged on the bed frame 101, and the bottom support plate 102 is used to support the patient's buttocks and thighs. The end of the back support plate 103 is rotatably connected to the end of the bottom support plate 102, and the back support plate 103 is used to support the patient's back and head. Two leg supports 104 are provided, and the leg supports 104 are located on the outer side of one end of the bottom support plate 102 away from the back support plate 103. The leg supports 104 are used to support the patient's calves, and the leg supports 104 can move laterally and vertically. When the leg supports 104 are not in use, the height is lower than the bottom support plate 102. The driving device 201 is used to drive the two leg supports 104 to move, and the driving device 201 is also used to drive the back support plate 103 to rotate (the back support plate 103 rotates around the end of the bottom support plate 102). In addition, the driving device 201 can be wrapped with an outer covering to improve its aesthetics.

[0079] In this embodiment, during the examination, the patient sits on the bottom support board 102, leans on the back support board 103, and places the two calves on the two leg supports 104 respectively. Driven by the driving device 201, the back support board 103 rotates relative to the bottom support board 102, so that the patient gradually changes from a sitting position to a lying position. At the same time, after the driving device 201 drives the leg support board 104 to rise, the height of the leg support board 104 is higher than the bottom support board 102, so that the patient's genitals and anus are exposed, which is more convenient to use. Furthermore, the driving device 201 also pushes the leg support board 104 to move horizontally toward the back support board 103, thereby driving the patient's thighs to move closer to the abdomen, increasing the exposure of the patient's genitals and anus.

[0080] Compared with ordinary examination beds, this examination bed can assist patients in completing related movements and exposing the genitals and anus. To use it, the patient only needs to relax and cooperate, which is more convenient.

[0081] In one embodiment, the driving device 201 includes a driving block 201 , two back support arms 202 , a driven ring 203 , a motor 204 and a rotating shaft 205 .

[0082] The driving block 201 is arranged on the bed frame 101 for transverse sliding, and the driving block 201 is located below the bottom support plate 102, and the driving block 201 can slide close to or away from the back support plate 103. The driving block 201 is slidably matched on the bed frame 101 by means of a guide rail.

[0083] Two back support arms 202 are symmetrically arranged on both sides of the bottom support plate 102, one end of the back support arm 202 is rotatably connected to the driving block 201, and the other end of the back support arm 202 is rotatably connected to the side of the back support plate 103. The driven ring 203 is connected to the lower end of the driving block 201. The motor 204 is arranged on the bed frame 101. One end of the rotating shaft 205 is connected to the output end of the motor 204, and the other end of the rotating shaft 205 passes through the driven ring 203 and is threadedly connected thereto.

[0084] In this embodiment, driven by the motor 204, the driving block 201 slides close to the back support plate 103, and with the traction of the back support arm 202, the back support plate 103 rotates relative to the end of the bottom support plate 102, thereby allowing the patient to change from a sitting position to a lying position.

[0085] In one embodiment, the driving device 201 further includes two symmetrically arranged driving mechanisms 301 , and the two driving mechanisms 301 are located on both sides of the bottom support plate 102 .

[0086] The driving mechanism 301 includes a first rod 302 , a second rod 303 , a connecting arm 304 and a third rod 305 .

[0087] The first rod 302 is connected to the driving block 201, and its axis is perpendicular to the moving direction of the driving block 201. The end of the back support arm 202 is rotatably connected to the first rod 302 through the opening, thereby realizing the rotatable connection between the back support arm 202 and the driving block 201, that is, the back support arm 202 is rotatably connected to the driving block 201 through the first rod 302.

[0088] The second rod 303 is connected to one end of the first rod 302 away from the driving block 201 , and the second rod 303 is arranged vertically.

[0089] One end of the connecting arm 304 is rotatably connected to the end of the second rod 303 away from the first rod 302, and the other end of the connecting arm 304 is connected to the leg support 104. The third rod 305 is rotatably connected to the middle part of the connecting arm 304, and is arranged vertically. The third rod 305 can move up and down. Specifically, a guide block is connected to the side of the driving block 201, and a dovetail block is provided on the side of the guide block away from the driving block 201. A dovetail groove that vertically slides with the dovetail block is provided on the side of the third rod 305 facing the driving block 201, so that the third rod 305 can only move vertically.

[0090] In this embodiment, when the motor 204 drives the driving block 201 to move toward the back support board 103, the driving block 201 drives the leg support 104 to move simultaneously through the first rod 302, the second rod 303, and the connecting arm 304. At the same time, the third rod 305 moves upward, so that the leg support 104 moves toward the back support board 103 and also moves upward. After moving, the leg support 104 lifts the patient's calf, and drives the calf to move toward the back support board 103 when the patient is lying on his back, so that the angle between the calf and the thigh becomes smaller, and the thigh moves closer to the patient's abdomen, thereby exposing the patient's genitals and anus, which is convenient for subsequent doctor operations.

[0091] In one embodiment, the driving block 201 is provided with a first mounting hole 206 and a second mounting hole 207. A first rotating rod 208 is coaxially arranged in the first mounting hole 206. A second rotating rod 209 is coaxially arranged in the second mounting hole 207. The third rod 305 is located between the first rotating rod 208 and the second rotating rod 209.

[0092] The driving mechanism 301 further includes a first gear 306 , a first rack 307 , a second rack 308 , a second gear 309 and a linkage mechanism 401 .

[0093] The first gear 306 is coaxially sleeved on the first rotating rod 208. The first rack 307 is arranged on the bed frame 101, the first rack 307 is located below the first gear 306, and the first rack 307 is meshed with the first gear 306. The second rack 308 is vertically arranged on the side of the corresponding third rod 305. The second gear 309 is coaxially sleeved on the second rotating rod 209, and the second gear 309 is meshed with the second rack 308. The linkage mechanism 401 can drive the second rotating rod 209 to rotate by the rotation of the first rotating rod 208, and can also keep the second rotating rod 209 stationary relative to the driving block 201.

[0094] In this embodiment, during the movement of the driving block 201, the first gear 306 on the first rotating rod 208 and the first rack 307 on the bed frame 101 always remain in meshing, so that the first rotating rod 208 rotates when the driving block 201 moves, and the second rotating rod 209 can also rotate through the linkage mechanism 401, thereby driving the third rod 305 to move vertically up and down through the second gear 309 and the second rack 308, and finally achieving that during the lateral movement of the driving block 201, the leg support 104 on the connecting arm 304 can also move horizontally.

[0095] In one embodiment, the linkage mechanism 401 includes a driving cylinder 402 , a driving ring 405 , a plurality of sliders 406 , a plurality of driving rods 407 , a driven cylinder 408 , a plurality of first gear teeth 409 , and a plurality of second gear teeth 410 .

[0096] The driving cylinder 402 is coaxially connected to the end of the first rotating rod 208. A plurality of evenly distributed first tooth grooves 403 are formed on the outer circumference of the driving cylinder 402. A third mounting hole 404 is formed on both sides of each first tooth groove 403. Both ends of the first tooth groove 403 are open, and the first tooth groove 403 extends along the axial direction of the driving cylinder 402. The number of the third mounting holes 404 is twice that of the first tooth grooves 403.

[0097] The driving ring 405 is sleeved outside the first rotating rod 208 and can move along the axial direction.

[0098] Multiple sliders 406 are connected to the drive ring 405. The sliders 406 are correspondingly slidably arranged in the first tooth groove 403. The side of the slider 406 away from the bottom of the first tooth groove 403 is coplanar with the outer wall curved surface of the drive cylinder 402, that is, the outer surface of the slider 406 is also a curved surface. Specifically, the slider 406 and the drive ring 405 are connected by a relatively thin connection block. Compared with the depth of the first tooth groove 403, the connection block is relatively thin. Even if the connection block is located in the first tooth groove 403, it does not affect the function of the first tooth groove 403.

[0099] A plurality of driving rods 407 are connected to the driving ring 405 , and each driving rod 407 is slidably matched with the corresponding third mounting hole 404 . When the two driving rods 407 between each two first tooth grooves 403 slide out of the third mounting hole 404 , a driving space is formed.

[0100] The driven cylinder 408 is coaxially connected to the end of the second rotating rod 209 .

[0101] A plurality of first gear teeth 409 are connected to the outer wall of the driven cylinder 408 and are distributed along the outer circumference of the driven cylinder 408. The first gear teeth 409 can mesh with the corresponding first tooth grooves 403, and the first gear teeth 409 can abut against the corresponding slider 406. Specifically, the slider 406 fills the first tooth grooves 403, and when the first gear teeth 409 abut against the slider 406, the first gear teeth 409 cannot enter the first tooth grooves 403. After the slider 406 slides along the first tooth grooves 403 to give way, the first gear teeth 409 can be inserted into the corresponding first tooth grooves 403, and the ends of the first gear teeth 409 abut against the above-mentioned connection blocks.

[0102] A plurality of second gear teeth 410 are connected to the outer wall of the driven cylinder 408 and are distributed along the outer circumference of the driven cylinder 408. The second gear teeth 410 can be inserted into the corresponding driving space. A circle of first gear teeth 409 and a circle of second gear teeth 410 are respectively at different axial positions of the driven cylinder 408.

[0103] In this embodiment, Figure 4 and Fig. 9 At this time, the driving block 201 moves left to drive the driving cylinder 402 to rotate counterclockwise. The slider 406 is in the first tooth groove 403. When the driving cylinder 402 rotates, the two first gear teeth 409 abut against the outer wall of the driving cylinder 402. Due to the existence of the slider 406, the first gear teeth 409 will not be inserted into the first tooth groove 403, so the driving cylinder 402 rotates, and the driven cylinder 408 cannot rotate, so that the driven cylinder 408 remains stationary relative to the driving block 201.

[0104] See also Fig.10At this time, the driving ring 405 moves, so that the slider 406 in the first tooth groove 403 moves, so that the first gear teeth 409 can be inserted into the first tooth groove 403. At the same time, the driving rod 407 extends from the third mounting hole 404, and the second gear teeth 410 can be inserted into the corresponding driving space, so that the driving cylinder 402 drives the driven cylinder 408 to rotate. From the axial direction of the driving cylinder 402, the driving space is similar to a tooth groove, and multiple driving spaces and multiple first tooth grooves 403 form all the tooth grooves of a gear. From the axial direction of the driven cylinder 408, the first gear teeth 409 and the second gear teeth 410 together form all the gear teeth of a gear.

[0105] When in use, click to drive the driving block 201 to move, at this time, the back support plate 103 gradually rotates and moves downward, under the control of the driving ring 405, the driving cylinder 402 drives the driven cylinder 408 to rotate, so that the third rod 305 moves upward, and the leg support 104 on the connecting arm 304 drives the calf to complete the action. Since the length of each person's thigh is different, the rising height of the leg support 104 is different. When the patient's calf reaches a suitable height, the driving ring 405 moves away from the driving cylinder 402, the driving rod 407 retreats to the third mounting hole 404, and the slider 406 slides to the other end of the first tooth groove 403, so that the first gear 409 cannot be inserted into the first tooth groove 403 again, and the driven cylinder 408 cannot rotate again, so as to achieve locking. However, it does not affect the back support plate 103 from rotating downward to a suitable position.

[0106] In one embodiment, the linkage mechanism 401 further includes a sliding ring 411 , one or more connecting plates 412 , a retaining ring 413 and a spring 414 .

[0107] The sliding ring 411 is slidably mounted on the first rotating rod 208. One end of the connecting plate 412 is connected to the outer wall of the sliding ring 411, and the other end of the connecting plate 412 is connected to the inner wall of the driving ring 405. The retaining ring 413 is mounted on the first rotating rod 208, and the retaining ring 413 can slide along the axial direction of the first rotating rod 208. The outer ring of the retaining ring 413 is connected to a coaxial cylinder, and the spring 414 is located in the cylinder, and the cylinder plays a certain guiding role for the spring 414. The spring 414 is mounted on the first rotating rod 208, and one end of the spring 414 is connected to the retaining ring 413, and the other end of the spring 414 is connected to the connecting plate 412.

[0108] In this embodiment, the movement of the retaining ring 413 on the first rotating rod 208 can drive the spring 414 to press or pull the driving ring 405, thereby changing the position of the slider 406 in the first tooth groove 403, and can also drive the driving rod 407 to move. Due to the existence of the spring 414, when the driven cylinder 408 needs to remain stationary, the spring 414 pulls the driving ring 405. At this time, the first gear 409 has not yet rotated out of the first tooth groove 403. The spring 414 can give the corresponding slider 406 a pulling trend. When the first gear 409 is separated from the first tooth groove 403, the slider 406 can move to the corresponding position of the first tooth groove 403 in the first time, so as to prevent the first gear 409 from entering the first tooth groove 403 again. Similarly, when the driving cylinder 402 needs to drive the driven cylinder 408, the spring 414 can also give the slider 406 and the driving rod 407 a trend, so that the slider 406 and the driving rod 407 can move in the first time when allowed.

[0109] In one embodiment, a fixed ring 210 is further connected to the driving block 201; a control rod 211 is rotatably arranged inside the fixed ring 210. A coaxial control ring 415 is connected to the outside of the baffle ring 413. Specifically, the control ring 415 can be directly connected to the baffle ring 413, or the control ring 415 can be indirectly connected to the baffle ring 413 by connecting to a cylinder. One end of the control rod 211 is connected to a Z-shaped rocker arm.

[0110] The linkage mechanism 401 further includes a square column 416 , a square tube 417 and a stopper 418 .

[0111] The square column 416 is connected to the side of the driving block 201. The square tube 417 is slidably sleeved on the square column 416.

[0112] One end of the stopper 418 is threadedly sleeved on the control rod 211 through an opening, and the other end of the stopper 418 is provided with a vertical control groove 419. Specifically, the threaded sleeve is provided with a hole in the stopper 418, and the hole is threadedly connected to the outer wall of the control rod 211. The control ring 415 is located in the control groove 419. The square column 416 and the control rod 211 are both arranged horizontally.

[0113] In this embodiment, the rotation of the control rod 211 can drive the limit members 418 in the two linkage mechanisms 401 to move closer to or farther from each other, that is, the threads at both ends of the control rod 211 rotate in opposite directions. In other words, the rotation of the control rod 211 can control the retaining ring 413 to move closer to or farther from the driving ring 405.

[0114] In one embodiment, the end of the connecting arm 304 is rotatably connected to the middle portion of the leg support 104 .

[0115] In this embodiment, the calf is placed on the leg support 104. The angle between the calf and the leg support 104 will change during the movement of the leg support 104. In order to ensure that the leg support 104 provides better support for the calf, the leg support 104 can also rotate on the connecting arm 304.

[0116] In addition, a pedal 502 is connected to the bed frame 101, and the pedal 502 is located below the leg support to provide support for the patient's feet during examination, making it easier for the patient to get on and off. Armrests 501 with arc-shaped contours are respectively provided on both sides of the upper end of the bottom support plate 102 to provide protection for both sides of the patient when the patient lies down.

[0117] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0118] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An examination bed for urodynamic examination, characterized in that: include: Bed frame (101); A bottom support plate (102) is arranged on the bed frame (101) and is used to support the buttocks and thighs of the patient; A back support plate (103), the ends of which are rotatably connected to the ends of the bottom support plate (102), and are used to support the back and head of the patient; Two leg supports (104) are provided, located outside one end of the bottom support plate (102) away from the back support plate (103), and are used to support the patient's calves. The leg supports (104) can move laterally and vertically; and The driving device (201) is used to drive the two leg support members (104) to move, and is also used to drive the back support plate (103) to rotate.

2. The examination bed for urodynamic examination according to claim 1, characterized in that: The driving device (201) comprises: A driving block (201) is arranged on the bed frame (101) in a transversely sliding manner and is located below the bottom support plate (102); Two back support arms (202) are symmetrically arranged on both sides of the bottom support plate (102), one end of the back support arm (202) is rotatably connected to the driving block (201), and the other end of the back support arm (202) is rotatably connected to the side of the back support plate (103); A driven ring (203) connected to the lower end of the driving block (201); A motor (204) is arranged on the bed frame (101); and The rotating shaft (205) has one end connected to the output end of the motor (204) and the other end passing through the driven ring (203) and being threadedly connected thereto.

3. The examination bed for urodynamic examination according to claim 2, characterized in that: The driving device (201) further comprises two symmetrically arranged driving mechanisms (301); the two driving mechanisms (301) are located on both sides of the bottom support plate (102); The driving mechanism (301) comprises: A first rod (302) connected to the driving block (201), with its axis being perpendicular to the moving direction of the driving block (201); A second rod (303) connected to an end of the first rod (302) away from the driving block (201) and arranged vertically; a connecting arm (304), one end of which is rotatably connected to the end of the second rod (303) away from the first rod (302), and the other end of which is connected to the leg support member (104); and The third rod (305) is rotatably connected to the middle portion of the connecting arm (304), arranged vertically, and can move up and down.

4. The examination bed for urodynamic examination according to claim 3, characterized in that: The driving block (201) is provided with a first mounting hole (206) and a second mounting hole (207) penetrating therethrough; a first rotating rod (208) is coaxially rotatably arranged in the first mounting hole (206); a second rotating rod (209) is coaxially rotatably arranged in the second mounting hole (207); and the third rod (305) is located between the first rotating rod (208) and the second rotating rod (209); The driving mechanism (301) further comprises: A first gear (306) is coaxially sleeved on the first rotating rod (208); A first rack (307), arranged on the bed frame (101), located below the first gear (306), and meshing with the first gear (306); A second rack (308) is vertically arranged on a corresponding side of the third rod (305); a second gear (309) coaxially sleeved on the second rotating rod (209) and meshing with the second rack (308); and The linkage mechanism (401) can drive the second rotating rod (209) to rotate by virtue of the rotation of the first rotating rod (208), and can also keep the second rotating rod (209) stationary relative to the driving block (201).

5. The examination bed for urodynamic examination according to claim 4, characterized in that: The linkage mechanism (401) comprises: A driving cylinder (402) is coaxially connected to the end of the first rotating rod (208), and a plurality of evenly distributed first tooth grooves (403) are formed on the outer circumference thereof, and a third mounting hole (404) is formed on both sides of each first tooth groove (403); A driving ring (405) is sleeved outside the first rotating rod (208) and can move in the axial direction; A plurality of sliders (406), each connected to the driving ring (405), the sliders (406) being slidably disposed in the first tooth groove (403) correspondingly, and a surface of the sliders (406) away from the bottom of the first tooth groove (403) being coplanar with the outer wall curved surface of the driving cylinder (402); A plurality of driving rods (407) are connected to the driving ring (405), each of the driving rods (407) is slidably matched with the corresponding third mounting hole (404), and a driving space is formed when the two driving rods (407) between each two first tooth grooves (403) slide out of the third mounting hole (404); A driven cylinder (408) coaxially connected to the end of the second rotating rod (209); a plurality of first gear teeth (409) connected to the outer wall of the driven cylinder (408) and distributed along the outer circumference of the driven cylinder (408); the first gear teeth (409) can mesh with the corresponding first tooth grooves (403); and the first gear teeth (409) can abut against the corresponding slider (406); and A plurality of second gear teeth (410) are connected to the outer wall of the driven cylinder (408) and are distributed along the outer circumference of the driven cylinder (408). The second gear teeth (410) can be inserted into the corresponding driving space.

6. The examination bed for urodynamic examination according to claim 5, characterized in that: The linkage mechanism (401) further comprises: A sliding ring (411) is slidably mounted on the first rotating rod (208); One or more connecting plates (412), one end of which is connected to the outer wall of the sliding ring (411), and the other end of which is connected to the inner wall of the driving ring (405); a retaining ring (413), sleeved on the first rotating rod (208), and capable of sliding along the axial direction of the first rotating rod (208); and A spring (414) is sleeved on the first rotating rod (208), one end of which is connected to the retaining ring (413) and the other end of which is connected to the connecting plate (412).

7. An examination bed for urodynamic examination according to claim 6, characterized in that: The driving block (201) is also connected to a fixing ring (210); a control rod (211) is rotatably arranged inside the fixing ring (210); and a coaxial control ring (415) is externally connected to the retaining ring (413); The linkage mechanism (401) further comprises: A square column (416) connected to a side surface of the driving block (201); A square cylinder (417) is slidably mounted on the square column (416); and A limiter (418), one end of which is threadedly sleeved on the control rod (211) through an opening, and the other end of which is provided with a vertical control groove (419); The control ring (415) is located in the control groove (419).

8. An examination bed for urodynamic examination according to claim 7, characterized in that: The end of the connecting arm (304) is rotatably connected to the middle of the leg support (104).

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