Clinical patient transfer device for intensive care medicine

Abstract

The invention belongs to the technical field of medical auxiliary instruments. In order to solve the problems that when an existing transfer device is used, the labor amount of medical workers is large, and the working efficiency of the medical workers is reduced, the clinical patient transfer device for the intensive care medicine is provided and comprises a transfer bed frame, a conveying ring pad and a lifting and transfer combined mechanism. By means of the lifting and transferring combined mechanism, a patient can be lightly lifted up intermittently while the patient is transferred, pushing force can be conveniently applied to the patient in the patient transferring process, so that a conveying ring pad can be smoothly moved out of the position below the patient, and the patient can be conveniently moved to the conveying ring pad from a sickbed; in the whole transferring process, medical workers do not need to lift the patient, the labor amount of the medical workers is reduced, and the working efficiency of the medical workers is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical auxiliary equipment, and in particular relates to a patient transfer device for clinical use in critical care medicine. Background Art

[0002] In critical care medicine, patient transport is a critical component in ensuring continuity of care, encompassing scenarios such as intra-hospital inter-departmental examinations, surgical transfers, and inter-hospital emergency referrals. Data shows that approximately 30% of critically ill patients experience fluctuations in their condition during transport, and performance deficiencies in transport equipment are a significant contributing factor to these risks. With the accelerated aging of our society, the proportion of critically ill patients with obesity and mobility impairments continues to rise. Traditional transport devices, when used with patients of complex body types, present challenges such as cumbersome operation and poor safety, making them unable to meet the urgent clinical need for efficient and accurate transport.

[0003] The patent with publication number CN115212048A discloses a multifunctional transfer bed for nursing, comprising: a bed body, rectangular grooves are provided at the four corners of the bed body, a transfer device is inserted into the rectangular groove, the transfer device comprises an outer frame, rectangular blocks matching the rectangular grooves are fixed to the lower sides of the two ends of the two outer frames, a convex pad is fixed to the inner side wall of one of the outer frames, a concave pad is fixed to the inner side wall of the other outer frame, and holes are provided at the outer ends of the concave pad that pass through the convex pad, an insertion rod is inserted into the insertion hole, a handle is fixed to the outer end of the insertion rod, and a lifting handle is fixed to the outer ends of the two outer frames. The lower ends of the convex pad and the lower ends of the concave pad are both fixed. An auxiliary sliding assembly is provided, and a storage device is fixed to the lower end of the bed; when in use, the convex cushion and the concave cushion are lifted by the lifting handle when transferring the patient, and the convex cushion and the concave cushion can lift and transfer the patient under the action of the insertion rod. After the patient is transferred to the bed, the handles at both ends are pulled outward to drive the insertion rod to be pulled out from the insertion holes on the convex cushion and the concave cushion, and then the lifting handle is lifted upward to tilt the convex cushion and the concave cushion inward, and the patient is lifted and slid onto the bed; in this way, the patient can be lifted rigidly by the convex cushion and the concave cushion during the transfer process, and the patient can be lifted and transferred more labor-savingly by the lifting handle that expands outward.

[0004] When the above technical solution is used, although the two convex pads and the concave pads can be tilted inward to save manpower, multiple doctors are required to be located on both sides of the convex pad and the concave pad respectively, and then lift the pads to achieve the patient's transfer. The workload of medical staff is large, which reduces the work efficiency of medical staff. Summary of the Invention

[0005] The purpose of the present invention is to overcome the problem that the existing transfer device has a large workload for medical staff when in use, which reduces the work efficiency of medical staff.

[0006] To achieve the above-mentioned objectives, the technical concept adopted by the present invention is to provide a patient transfer device for critical care clinical use, comprising a transfer bed frame, a transfer ring mat, and a lifting and transfer combined mechanism. The present invention can, through the lifting and transfer combined mechanism, intermittently and gently lift the patient while transferring the patient, facilitating the application of a thrust to the patient during the transfer process, so that the transfer ring mat can be smoothly moved out from under the patient and facilitates the movement of the patient from the bed to the transfer ring mat. During the entire transfer process, medical staff do not need to lift the patient, saving their workload and improving their work efficiency.

[0007] Based on the above technical ideas, the technical solution adopted by the present invention is: A patient transfer device for critical care clinical use, comprising a transfer bed frame and a fence rotatably connected to the transfer bed frame, and further comprising: conveyor ring pads; The lifting and transporting combined mechanism is arranged on the transfer bed frame and connected with the conveying ring pad.

[0008] In order to achieve the purpose of lifting the patient upward intermittently while moving the patient, so as to reduce the friction between the patient and the bed or the transfer ring mat, and to quickly transfer the patient, in the above technical solution, as a preferred embodiment, the lifting and transfer combined mechanism includes: The extension assembly is slidably connected to the transfer bed frame; A transmission assembly is connected to the transmission ring washer and the extension assembly respectively; The lifting assembly is connected to the transmission assembly.

[0009] In order to improve the comfort of the patient while lifting the patient upward, the above technical solution is further defined as follows: the lifting component includes: Lifting elastic member; A first rotating shaft is connected to the transmission assembly via a first conveyor belt; A plurality of cams are all arranged on the first rotating shaft, and each cam is in contact with and connected to the lifting elastic member.

[0010] In order to facilitate the removal of the transfer ring mat to transfer the patient from the transfer ring mat to the bed, or transfer the patient from the bed to the transfer ring mat, the above technical solution is further defined, and the extending component includes: Two sliders are symmetrically arranged on the transfer bed frame, and each slider is connected to the transfer bed frame and the transmission assembly respectively; two rotating rods, each rotating rod being connected to a corresponding slider; The two telescopic rods are both arranged on the transfer bed frame, and a C-shaped block is provided at the movable end of each telescopic rod, and the C-shaped block is rotatably connected to the corresponding rotating rod.

[0011] In order to provide a thrust to the patient during the transfer process to achieve the transfer of the patient, the above technical solution is further defined as follows: the transmission assembly includes: A plurality of second rotating shafts are sleeved with the protective ring pad, and both ends of each second rotating shaft are rotatably connected to the corresponding slider; Wherein, the second rotating shaft located at the outermost side of the transfer bed frame is connected to the first rotating shaft through the first conveyor belt; The two second conveyor belts are symmetrically arranged at two ends of the plurality of second rotating shafts, and each second conveyor belt is connected to each second rotating shaft.

[0012] In order to prevent the entire device from tipping over due to uneven force on both ends of the transfer bed frame during patient transfer, the above technical solution is further limited to include a balancing mechanism for maintaining the stability of the transfer bed frame; the balancing mechanism includes: The pushing assembly is arranged between the transfer bed frame and the lifting base, and the upper end of the pushing assembly passes through the transfer bed frame and contacts and connects with the extending assembly, and the lower end is connected to the lifting base; The counterweight box is in contact with the push assembly and is provided with a plurality of slope slideways; Multiple counterweight balls, each counterweight ball is located in a corresponding slope slide.

[0013] In order to adjust the counterweight of the transfer bed frame according to the weight of different patients so that the force on both ends of the transfer bed frame is balanced, the above technical solution is further limited. A limit block is provided in each slope slide, and a plurality of limit rods are provided at the bottom of the counterweight box, which respectively match the limit blocks.

[0014] In order to balance the transfer bed frame in time according to the patient's movement, the above technical solution is further limited, and the propulsion component includes: The piston is arranged inside the transfer bed frame, and the lower end of the piston is in contact with the extension assembly; A hydraulic cylinder is provided on the lifting base, and includes a first hydraulic chamber and a second hydraulic chamber; the first hydraulic chamber is connected to the interior of the transfer bed frame through a hydraulic pipe, and the first hydraulic chamber is connected to the second hydraulic chamber; A first hydraulic rod, one end of which is connected to the first hydraulic chamber, and the other end of which is provided with a first pushing block, and the first pushing block is in contact with and connected to the bottom surface of the counterweight box; One end of the second hydraulic rod is connected to the second hydraulic chamber, and the other end is provided with a second pushing block, and the second pushing block is in contact with the limiting rod.

[0015] In order to facilitate the adjustment of the height of the transfer ring pad so as to adapt to different heights of hospital beds, the above technical solution is further limited to include a lifting base for adjusting the height of the transfer bed frame; the lifting base includes: A connecting plate connected to the bottom surface of the transfer bed frame; Two movable brackets are respectively arranged at both ends of the connecting plate, and each movable bracket is slidably connected to the connecting plate; The lifting assembly is arranged on the connecting plate and is connected with the two movable brackets.

[0016] In order to ensure that the conveying ring pad can move normally, the above technical solution is further limited to include a flipping mechanism for flipping the fence downward; the flipping mechanism includes: Two locking rods are cross-arranged on the sides of the transfer bed frame, and each locking rod is slidably connected to the transfer bed frame; The adjusting knob is arranged on the side of the transfer bed frame and is engaged with the two locking rods. Beneficial effects

[0017] 1. The present invention adopts the combined design of the transfer ring cushion, the lifting and transporting combined mechanism and the balancing mechanism. When transferring the patient above the hospital bed, the lifting and transporting combined mechanism can be used. During the process of withdrawing the transfer ring cushion from under the patient's body, the patient can be gently lifted up intermittently while applying a thrust to the patient, so as to quickly transfer the patient to the transfer end of the transfer bed until the patient is completely located on the bed or the patient is moved from the bed to the center position of the transfer ring cushion. This avoids the situation in which the friction between the patient and the transfer ring cushion or the surface of the hospital bed is too large during the process of moving the patient, and the patient cannot be smoothly transferred to the bed. At the same time, during the process of transferring the patient, the center of gravity of the transfer bed frame shifts, thereby triggering the balancing mechanism to counterweight the end of the transfer bed frame away from the patient, so as to keep the transfer bed frame balanced, thereby improving the safety of the overall device during use.

[0018] Second, the present invention utilizes a combined design of a transfer rotating rod, a slider, counterweight balls, and a limit block. The end of the slider away from the transfer bed frame will tilt downward under the action of the patient's own gravity. At this time, the rotating rod at the other end of the slider will rotate upward, thereby contacting the piston in the balancing mechanism. Therefore, when the patient is heavy, the greater the upward rotation angle of the rotating rod, the greater the distance the piston is displaced, and the more counterweight balls are released by the limit block, so that the counterweight balls provide more counterweight to the transfer bed frame away from the patient, thus achieving adaptive counterweighting according to the patient's weight, so that both sides of the transfer bed frame always remain balanced, that is, the center of gravity position of the transfer bed frame remains unchanged.

[0019] 3. Through the combined design of the lifting elastic member, cam and transmission assembly, the present invention can use the cam to indirectly squeeze the end of the lifting elastic member upward during the process of the transmission assembly transferring the patient, so that the lifting elastic member moves in a wave-like manner, thereby gently lifting the patient while improving the patient's comfort during use.

[0020] Fourth, the present invention adopts the combined design of the locking rod and the adjusting knob to adjust the position of the clearance groove of the locking rod so as to flip the fence downward, thereby facilitating the lifting and transfer combined mechanism to transfer the patient to the bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic structural diagram of a patient transfer device for critical care clinical use provided by an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a structural diagram of the lifting and transporting combined mechanism; Figure 4 for Figure 3 a perspective view of the device shown; Figure 5 Schematic diagram of the connection between the slider and the rotating rod; Figure 6 for Figure 3 a half-section view of the device shown; Figure 7 It is a structural diagram of the lifting component; Figure 8 This is a schematic diagram of the connection between the lifting base and the transfer bed frame; Figure 9 for Figure 8 Half-section view of the device shown Figure 10 for Figure 9 Enlarged view of point B in the middle; Figure 11 for Figure 1 A schematic structural diagram of the device shown from another perspective; Figure 12 is a cross-sectional view of the connecting plate; Figure 13 for Figure 1 A half-section view of the piston in the device shown; Figure 14 for Figure 13 Enlarged view of point C in the middle; Figure 15 for Figure 1 A cross-sectional view of the hydraulic cylinder in the device shown; Figure 16 for Figure 15 Enlarged view of point D in the middle; Figure 17 for Figure 15 Schematic diagram of the mechanism of the device from another perspective Figure 18 for Figure 17 Enlarged view of point E in the middle; Figure 19 It is a half-section diagram of the counterweight box; Figure 20 for Figure 19 A schematic structural diagram of the device shown from another perspective; Figure 21 for Figure 20 Enlarged view of point F in the middle; Figure 22 for Figure 1 Schematic diagram of the structure of the device when not in use.

[0023] Among them, 1. conveyor ring pad; 2. Lifting and transporting combined mechanism; 21. Extension assembly; 21a. Slider; 21b. Rotating rod; 21c. Telescopic rod; 21d. C-shaped block; 22. Transmission assembly; 22a. Second rotating shaft; 22b. Second conveyor belt; 22c. Dual-axis motor; 23. Lifting assembly; 23a. Lifting elastic member; 23b. First rotating shaft; 23c. Cam; 23d. First conveyor belt; 23e. Mounting frame; 3. Balancing mechanism; 31. Pushing assembly; 31a. Piston; 31b. Hydraulic cylinder; 31b-1. First hydraulic chamber; 31b-2. Second hydraulic chamber; 31c. First hydraulic rod; 31c-1. First pushing block; 31d. Second hydraulic rod; 31d-1. Second pushing block; 31e. First return spring; 32, counterweight box; 32a, slope slide; 32b, third push block; 32c, second return spring; 33. Counterweight ball; 34. Limit block; 35. Limit rod; 4. Lifting base; 41. Connecting plate; 42. Movable bracket; 42a. Support rod; 42b. Adjusting rod; 43. Lifting assembly; 43a. Driver; 43b. Rotating gear; 43c. Transmission rack; 43d. Push rod; 44. Connecting column; 5. Transfer bed frame; 51. Internal cavity; 6. Fence; 7. Flipping mechanism; 71. Positioning rod; 72. Adjustment knob. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "length direction", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. In addition, features limited to "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0027] The inventors have found that when the current transfer device is in use, although the two convex pads and the concave pad can be tilted inward to save manpower, multiple doctors are required to be located on both sides of the convex pad and the concave pad respectively, and then lift the pads to achieve the patient's transfer. The workload of medical staff is large, which reduces the work efficiency of medical staff.

[0028] Based on the above findings, the present application provides a patient transfer device for critical care clinical use, which includes a transfer ring pad 1, a lifting and transfer combined mechanism 2, a balancing mechanism 3, a lifting base 4, a transfer bed frame 5, a fence 6, and a turning mechanism 7. The present application uses the following designs to achieve a better anti-leakage effect of the overall device, specifically: 1. The lifting and transporting combined mechanism 2 can intermittently lift the patient upward while providing thrust to the patient through the transfer ring pad 1. This can reduce the friction between the patient and the bed or the transfer ring pad 1, and avoid the situation in which the patient cannot be smoothly transferred to the bed due to excessive friction between the patient and the transfer ring pad or the bed surface during the patient's movement; 2. When the patient on the transfer ring mat 1 is moving, the balancing mechanism 3 can adaptively counterweight the end of the mobile bed frame 5 away from the patient according to the patient's weight, so that the forces on both ends of the mobile bed frame 5 are evenly distributed, thereby improving the stability of the entire device and the safety of the patient during use; 3. The turning mechanism 7 can turn the fence 6 downward so that the transfer ring pad 1 can be extended and moved above the bed to transfer the patient.

[0029] Example 1 This embodiment provides a patient transport device for critical care clinical use, such as Figure 1-22 As shown, it includes a conveying ring pad 1, a lifting and transferring combined mechanism 2, a balancing mechanism 3, a lifting base 4, a transfer bed frame 5, a fence 6 and a turning mechanism 7.

[0030] The conveying ring pad 1 is an annular belt structure, and the conveying ring pad 1 is connected to the lifting and transporting combined mechanism 2, and the lifting and transporting combined mechanism 2 is slidably connected to the transfer bed frame 5.

[0031] The transfer bed frame 5 is a plate-like structure, and fences 6 are provided on both sides of the transfer bed frame 5. The fences 6 near the lifting and transporting combined mechanism 2 are rotatably connected to the transfer bed frame 5 via a rotating rod, so that the lifting and transporting combined mechanism 2 can be extended to the patient or the center of the bed during the patient's movement. A slide groove is provided on the fence 6 and is used to connect with the turning mechanism 7 .

[0032] In practical applications, the fence 6 can be flipped or fixed by the flipping mechanism 7 ; the flipping mechanism 7 includes two cross-arranged positioning rods 71 and an adjustment knob 72 arranged between the two positioning rods 71 .

[0033] Specifically, each locking rod 71 includes a locking portion, a rack, and a sliding portion; the lower end of the rack is fixedly connected to the locking portion, and the upper end of the rack is fixedly connected to the sliding portion, and the locking portion and the sliding portion are respectively located on both sides of the rack; wherein the locking portion and the sliding portion are both L-shaped structures, and the sliding portion of each locking rod 71 is located in a slide groove provided on the side of the transfer bed frame 5; The adjusting knob 72 is rotatably connected to the side of the transfer bed frame 5, and the adjusting knob 72 is located between the two locking rods 71 and is respectively engaged with the racks of the two locking rods 71; The working principle of the flip mechanism 7 provided in the embodiment of the present invention is: The adjusting knob 72 is rotated clockwise, and the adjusting knob 72 drives the two locking rods 71 to move away from each other, so that the two locking rods 71 move outward until they leave the fence 6, so as to flip the fence 6 downward, so that the fence 6 switches from a vertical state to a horizontal state, so as to lift the transport combined mechanism 2 to move; After use, the medical staff can manually flip the fence 6 upwards to switch the fence 6 from a horizontal state to a vertical state, and then rotate the adjustment knob 72 counterclockwise. Driven by the adjustment knob 72, the two locking rods 71 approach each other, so that the two locking rods 71 are located on the outside of the fence 6, thereby fixing the fence 6.

[0034] In actual use, the adjusting knob 72 is connected to the side damping of the transfer bed frame 5, that is, the adjusting knob 72 will only rotate when the adjusting knob 72 is turned by external force. In order to further prevent the locking rod 71 from rotating, a structure for fixing the adjusting knob 72 can be added in actual use.

[0035] A U-shaped groove is provided on the transfer bed frame 5, and slides are provided on both sides of the U-shaped groove. The two slides are used to be slidably connected to the lifting and transferring combined mechanism 2; wherein, a cavity is provided at the upper end of each slide, and the two cavities are used to be connected to the balancing mechanism 3.

[0036] In order to facilitate the adjustment of the height of the transfer ring pad 1 so as to match it with beds of different heights, an embodiment of the present invention is provided with a lifting base 4 under the transfer mattress 5. The lifting base 4 includes a connecting plate 41, two sets of movable brackets 42 and a lifting assembly 43.

[0037] The connecting plate 41 is fixedly connected to the transfer mattress 5 via the connecting column 44; The lifting assembly 43 is fixedly disposed in the connecting column 44 , and the lifting assembly 43 passes through the connecting plate 41 and is connected to the movable bracket 42 .

[0038] Specifically, the lifting assembly 43 includes a driver 43a, a rotating gear 43b, two transmission racks 43c and two push rods 43d; The driver 43a is fixedly disposed in the connecting column 44, and the output shaft of the driver 43a is fixedly connected to the rotating gear 43b; it should be noted that the driver 43a provided in the embodiment of the present invention is the existing technology, and the embodiment of the present invention does not improve it. Preferably, the driver 43a is a rotating motor.

[0039] The two transmission racks 43c are respectively located at both ends of the rotating gear 43b, and each transmission rack 43c is meshed with the rotating gear 43b.

[0040] The two push rods 43 d are both perpendicularly arranged to the transmission rack 43 c , and each push rod 43 d is correspondingly connected to the transmission rack 43 c and to the corresponding movable bracket 42 .

[0041] The two groups of movable brackets 42 are symmetrically arranged, each group of movable brackets includes two Y-shaped legs, and each Y-shaped leg includes a support rod 42a and an adjustment rod 42b rotatably connected to the support rod 42a; One end of the adjustment rod 42b is rotatably connected to the support rod 42a, and the other end is rotatably connected to the corresponding push rod 43d; The upper end of the support rod 42 a is rotatably connected to the connecting plate 41 .

[0042] The working principle of the lifting assembly 43 provided in the embodiment of the present invention is: Start the driver 43a, the driver 43a drives the rotating gear 43b to rotate, the rotating gear 43b drives the two transmission racks 43c to move closer to or away from each other, and then the transmission rack 43c drives the corresponding push rod 43d to move, so that the two push rods 43d move closer to or away from each other, so that the two push rods 43d drive their respective adjustment rods 42b to rotate, and the adjustment rod 42b drives the support rod 42a to rotate downward or upward, thereby realizing the height adjustment of the conveying ring pad 1.

[0043] The lifting and transporting combined mechanism 2 includes: an extending component 21, a transmission component 22 and a lifting component 23.

[0044] The extension assembly 21 includes two sliders 21a, two rotating rods 21b, two telescopic rods 21c and two C-shaped blocks 21d; Specifically, the two sliders 21a are respectively slidably disposed in the two slideways of the transfer bed frame 5, and one end of each slider 21a close to the transfer bed frame 5 is fixedly connected to the corresponding rotating rod 21b; The two telescopic rods 21c are respectively arranged at the two slide ends of the transfer bed frame 5, and the movable end of each telescopic rod 21c is fixedly connected to the corresponding two C-shaped blocks 21d, and the end of each C-shaped block 21d away from the telescopic rod 21c is rotatably connected to the rotating rod 21bd; it should be noted that the telescopic rod 21c provided in the embodiment of the present invention is the existing technology, and the embodiment of the present invention does not improve it. For example, the telescopic rod 21c is an electric push rod.

[0045] Thus, when the end of the slider 21 a away from the rotating rod 21 b is subjected to downward pressure, the rotating rod 21 b tilts upward, thereby contacting the balancing mechanism 3 provided in the inner cavity 51 of the transfer bed frame 5 .

[0046] The transmission assembly 22 includes a plurality of second transmission shafts 22a, two second conveyor belts 22b and a dual-axis motor 22c; The dual-axis motor 22c and the plurality of second transmission shafts 22a are located between the two sliders 21a, and the two output shafts of the dual-axis motor 22c and the two ends of the plurality of second transmission shafts 22a are respectively connected to the corresponding second conveyor belts 22b; The ends of the dual-axis motor 22c and each of the second transmission shafts 22a are rotatably connected to the corresponding slider 21a. The conveyor ring pad 1 is mounted on the plurality of second transmission shafts 22a. It should be noted that the dual-axis motor 22c provided in this embodiment of the present invention is prior art and is not improved upon in this embodiment of the present invention. For example, the model of the dual-axis motor 22c is 1LE0001-1DA33-3AA4-Z.

[0047] In this way, after the dual-axis motor 22c is started, the two output shafts of the dual-axis motor 22c drive each second transmission shaft 22a to rotate through the second transmission belt 22b, and then the second transmission shaft 22a drives the transmission ring pad 1 to transmit, so as to realize the transfer of the patient.

[0048] The lifting assembly 23 includes a lifting elastic member 23a, a first rotating shaft 23b, a plurality of cams 23c, two first conveying belts 23d and a mounting frame 23e.

[0049] The mounting frame 23e is disposed at the end of the transmission assembly 22, and both ends of the mounting frame 23e are fixedly connected to the corresponding sliders 21a; The first rotating shaft 23b is disposed in the mounting frame 23e, and both ends of the first rotating shaft 23b are rotatably connected to the slider 21a; The two first conveyor belts 23d are respectively mounted on the first rotating shaft 23b and the second transmission shaft 22a located on one side of the first rotating shaft 23b; A plurality of cams 23 c are vertically disposed on the first rotating shaft 23 , and an outer surface of each cam 23 c contacts an outer surface of the lifting elastic member 23 a .

[0050] The lifting elastic member 23a is an elongated structure. Specifically, the lifting elastic member 23a is disposed in the mounting frame 23e and is located below the first rotation axis 23b. It should be noted that the embodiment of the present invention does not limit the lifting elastic member 23a. Preferably, the lifting elastic member 23a is an airbag.

[0051] Taking the transfer of a patient from the transfer ring mat 1 to the hospital bed as an example, the working principle of the critical care clinical patient transfer device provided by the embodiment of the present invention is as follows: Start the dual-axis motor 22c, and the two output shafts of the dual-axis motor 22c drive the second rotating shaft 22a and the first rotating shaft 23b to rotate clockwise through the second conveyor belt 22b, and the second rotating shaft 22a drives the conveying ring pad 1 to rotate, and at the same time the first rotating shaft 23b drives the cam 23c to rotate, and then the cam 23c squeezes the outer surface of the lifting elastic member 23a, so that one end of the lifting elastic member 23a is squeezed upward from the mounting frame 23e to lift the patient, and the other end retracts under the action of its own elastic force. In this way, during the continuous circulation of the cam 23c, the end of the lifting elastic member 23a is continuously squeezed by the cam 23c, and intermittently lifts the patient, so as to achieve rapid transfer of the patient.

[0052] If the patient is transferred from the hospital bed to the conveying ring pad 1, the operation process is the same as the above-mentioned operation process of transferring the patient from the conveying ring pad 1 to the hospital bed. The difference is that the output shaft of the dual-axis motor 22c needs to rotate counterclockwise to provide a thrust to the patient in the opposite direction of the hospital bed, so that the patient is moved to the conveying ring pad 1. While moving the patient, similar to the above-mentioned operation of transferring the patient from the conveying ring pad 1, the lifting elastic member 23a continuously lifts the patient intermittently under the squeezing action of the cam 23c.

[0053] The balancing mechanism 3 is used to flexibly balance the ends of the transfer bed frame according to the patient's weight during the patient's movement. In actual application, two balancing mechanisms 3 can be installed between the lifting base 4 and the transfer bed frame 5. The two balancing mechanisms 3 are symmetrically arranged so as to contact and connect with the ends of the corresponding rotating rods 21b.

[0054] Each balancing mechanism 3 includes a pushing assembly 31 , a counterweight box 32 , a plurality of counterweight balls 33 , a plurality of limiting blocks 34 and a plurality of limiting rods 35 .

[0055] The pushing assembly 31 includes a piston 31 a , a hydraulic cylinder 31 b , a first hydraulic rod 31 c , and a second hydraulic rod 31 d .

[0056] Specifically, the piston 31a is disposed in the internal cavity 51 of the transfer bed frame 5, and the lower end of the piston 31a is fixedly connected to the transfer bed frame 5 via a first return spring 31e; During actual use, the internal cavity 51 of the transfer bed frame 5 is pre-filled with hydraulic oil; in this way, the rotating rod 21b rotates upward and contacts the bottom surface of the piston 31a, thereby pushing the piston 31a to move upward, and the piston 31a squeezes the hydraulic oil out of the internal cavity 51 of the transfer bed frame 5, and then the hydraulic oil enters the hydraulic cylinder 31b through the hydraulic pipe.

[0057] The hydraulic cylinder 31b is fixedly mounted on the lifting base 4. Specifically, the hydraulic cylinder 31b includes two interconnected hydraulic chambers, namely a first hydraulic chamber 31b-1 and a second hydraulic chamber 31b-2. The upper end of the first hydraulic chamber 31b-1 is connected to the internal cavity 51 of the transfer bed frame 5 through a hydraulic pipe, and the lower end is connected to the first hydraulic rod 31c; the second hydraulic chamber 31b-2 is connected to the second hydraulic rod 31d; Among them, the movable end of the first hydraulic rod 31c is provided with a first pushing block 31c-1, and the movable end of the second hydraulic rod 31d is provided with a second pushing block 31d-1; specifically, the first pushing block 31c-1 and the second pushing block 31d-1 are both triangular block structures, and the first pushing block 31c-1 and the second pushing block 31d-1 are both located below the counterweight box 32.

[0058] The working principle of the pushing assembly 31 provided in the embodiment of the present invention is: After the piston 31a is pushed upward by the rotating rod 21b, the hydraulic oil in the internal cavity 51 of the transfer bed 5 is squeezed into the hydraulic pipe, and then the hydraulic oil passes through the hydraulic pipe and enters the first hydraulic chamber 31b-1, and then the hydraulic oil pushes the first hydraulic rod 31c to extend until the first hydraulic rod 31c is fully extended, and then the hydraulic oil in the first hydraulic chamber 31b-1 continues to accumulate until it is squeezed into the second hydraulic chamber 31b-2, and then the hydraulic oil drives the second hydraulic rod 31d to extend.

[0059] The counterweight box 32 has a square structure and is internally provided with a plurality of parallel, sloped slideways 32a. Each sloped slideway 32a in the counterweight box 32 has a square through-hole for slidingly engaging with a corresponding stop block 34. Furthermore, a trapezoidal cavity is provided below each sloped slideway 32a in the counterweight box 32. Within this cavity, a third pusher block 32b is located for longitudinally moving the stop block 34. This trapezoidal cavity communicates with the square through-holes in the counterweight box 32. In actual use, the counterweight box 32 is rotatably connected to the connecting plate 41 via a rotating rod.

[0060] Each weighted ball 33 is located in the corresponding slope slide 32 a and is located at the upper end of the slope slide 32 a by the limiting block 34 .

[0061] Each limiting rod 35 is an L-shaped structure. Specifically, one end of the limiting rod 53 is located outside the counterweight box 32, and the other end is inserted into the trapezoidal through hole of the counterweight box 32 and connected to the third push block 32b. A second return spring 32c is also provided between the third push block 32b and the inner wall of the counterweight box 32. In the initial state, the end of the second push block 31d-1 is located at the corner of the limit rod 35 at its end, and the limit block 34 is located above the slope slide 32a under the limiting action of the limit rod 35, and each counterweight ball 33 is located between the limit block 34 and the counterweight box 32.

[0062] The working principle of the balancing mechanism 3 provided in the embodiment of the present invention is: During the patient transfer process, one side of the transfer bed frame 5 is subjected to the patient's own weight, causing the two sliders 21a to tilt downward. At this time, one end of the rotating rod 21b of each slider 21a tilts upward, thereby pushing the respective pistons 31a of the two balancing mechanisms 3 upward. After the piston 31a is pushed upward by the rotating rod 21b, the hydraulic oil in the internal cavity 51 of the transfer bed frame 5 is squeezed into the hydraulic pipe, and then the hydraulic oil enters the first hydraulic chamber 31b-1 through the hydraulic pipe, and then the hydraulic oil pushes the first hydraulic rod 31c to extend until the first hydraulic rod 31c is fully extended. At this time, the first hydraulic rod 31c drives the first pushing block 31c-1 to move toward the end away from the counterweight box 32 until the counterweight box 32 is in a horizontal state; Then, the hydraulic oil in the first hydraulic chamber 31b-1 continues to accumulate until it is squeezed into the second hydraulic chamber 31b-2, and then the hydraulic oil drives the second hydraulic rod 31d to extend, and the second hydraulic rod 31d drives the second push block 31d-1 to move. At this time, each limit rod 35 extends from the trapezoidal cavity of the counterweight box 32 in sequence along the inclined surface of the second push block 31d-1. At this time, the corresponding limit block 34 loses the supporting force of the third push block 32b and enters the trapezoidal cavity. At this time, the counterweight ball 33 is released, and the counterweight ball 33 rolls along the slope slide 32a, thereby realizing the transfer of the counterweight of the bed frame 5.

[0063] After use, when the patient is located at the center of the transfer ring mat 1 or when the patient is transferred from the transfer mat 1 to the hospital bed, the transfer bed frame 5 is in a balanced state. At this time, the piston 31a is no longer squeezed by the rotating rod 21b, so that the piston 31a returns to the initial position under the drive of the first return spring 31e, and the hydraulic oil in the first hydraulic chamber 31b-1 flows back into the internal cavity 51 of the transfer bed frame 5. At this time, the first hydraulic rod 31c drives the first pushing block 31c-1 to retreat. At this time, the counterweight box 32 is gradually tilted along the inclined surface of the first pushing block 31c-1, so that each counterweight ball 33 returns to its initial position. The hydraulic oil level in the first hydraulic chamber 31b-1 gradually decreases until it is located below the connecting port between the first hydraulic chamber 31b-1 and the second hydraulic chamber 31b-2. The hydraulic oil in the second hydraulic chamber 31b-2 flows back to the first hydraulic chamber 31b-1. At this time, the second hydraulic rod 31d retreats at the same time, so that the third push block 32b returns to its initial position under the action of the second return spring 32c, so that the corresponding limit block 34 moves upward along the inclined surface of the third push block 32b, thereby fixing the position of the counterweight ball 33 to prevent the counterweight ball 33 from shaking.

[0064] It should be noted that when the hydraulic oil in the first hydraulic chamber 31b-1 drops to the connecting port between the first hydraulic chamber 31b-1 and the second hydraulic chamber 31b-2, the first pushing block 31c-1 is located below the counterweight box 32, and the counterweight box 32 is in an inclined state under the action of the inclined surface of the first pushing block 31c-1. At this time, the slope slide 32a is in an inclined state, and the counterweight ball 33 returns to its initial position along the slope slide 32a.

[0065] Application Cases: Taking the transfer of a patient from a bed to the transfer ring mat 1 as an example, the following steps are included: S1: Flip the fence 6 from a vertical state to a horizontal state; Specifically, the adjusting knob 72 is rotated clockwise, and the adjusting knob 72 drives the two locking rods 71 to move away from each other. At this time, the two locking rods 71 move outward until they leave the fence 6, thereby turning the fence 6 downward, so that the fence 6 is switched from a vertical state to a horizontal state; S2: Start the telescopic rod 21c, which drives the conveying ring pad 1 and the transmission assembly 22 to extend until the outer edge of the conveying ring pad 1 is located below the side of the patient's body; S3: Start the dual-axis motor 22c. The two output shafts of the dual-axis motor 22c drive the second rotating shaft 22a and the first rotating shaft 23b to rotate clockwise through the second conveyor belt 22b. The second rotating shaft 22a drives the conveying ring pad 1 to rotate. At the same time, the first rotating shaft 23b drives the cam 23c to rotate, and then the cam 23c squeezes the outer surface of the lifting elastic member 23a, so that one end of the lifting elastic member 23a is squeezed upward from the mounting frame 23e to lift the patient, and the other end retracts under the action of its own elastic force. In this way, during the continuous circulation of the cam 23c, the end of the lifting elastic member 23a is continuously squeezed by the cam 23c, and the patient is intermittently lifted, so as to achieve rapid transfer of the patient. During the patient transfer process, one end of the slider 21a is tilted downward by the patient's own weight, and at this time, the other end of the slider 21a is tilted upward. At this time, the rotating rod 21b at the other end of the slider 21a is tilted upward, thereby contacting the piston 31a. After the piston 31a is pushed upward by the rotating rod 21b, the hydraulic oil in the internal cavity 51 of the transfer bed frame 5 is squeezed into the hydraulic pipe, and then the hydraulic oil enters the first hydraulic chamber 31b-1 through the hydraulic pipe, and then the hydraulic oil pushes the first hydraulic rod 31c to extend until the first hydraulic rod 31c is fully extended. At this time, the first hydraulic rod 31c drives the first pushing block 31c-1 to move toward the end away from the counterweight box 32 until the counterweight box 32 is in a horizontal state; Then, the hydraulic oil in the first hydraulic chamber 31b-1 continues to accumulate until it is squeezed into the second hydraulic chamber 31b-2, and then the hydraulic oil drives the second hydraulic rod 31d to extend, and the second hydraulic rod 31d drives the second push block 31d-1 to move. At this time, each limit rod 35 extends out from the trapezoidal cavity of the counterweight box 32 in sequence along the inclined surface of the second push block 31d-1. At this time, the corresponding limit block 34 loses the supporting force of the third push block 32b and enters the trapezoidal cavity. At this time, the counterweight ball 33 is released, and the counterweight ball 33 rolls along the slope slide 32a, thereby realizing the counterweight of the transfer bed frame 5, thereby maintaining the uniform and stable force of the entire device during the patient transfer process.

[0066] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A patient transfer device for critical care clinical use, comprising a transfer bed frame (5) and a fence (6) rotatably connected to the transfer bed frame (5), characterized in that: Also includes: Conveyor ring pad (1); The lifting and transporting combined mechanism (2) is arranged on the transfer bed frame (5) and is connected to the conveying ring pad (1).

2. A patient transfer device for critical care clinical use according to claim 1, characterized in that: The lifting and transporting joint organization (2) includes: An extension assembly (21) is slidably connected to the transfer bed frame (5); A transmission assembly (22) is connected to the transmission ring washer (1) and the extension assembly (21) respectively; The lifting assembly (23) is connected to the transmission assembly (22).

3. A patient transfer device for critical care clinical use according to claim 2, characterized in that: The lifting assembly (23) includes: A lifting elastic member (23a); A first rotating shaft (23b) is connected to the transmission assembly (22) via a first conveyor belt (23d); A plurality of cams (23c) are all arranged on the first rotating shaft (23b), and each cam (23c) is in contact with and connected to the lifting elastic member (23a).

4. A patient transfer device for critical care clinical use according to claim 3, characterized in that: The extension assembly (21) comprises: Two sliders (21a) are symmetrically arranged on the transfer bed frame (5), and each slider (21a) is connected to the transfer bed frame (5) and the transmission assembly (22). Two rotating rods (21b), each rotating rod (21b) is connected to a corresponding slider (21a); Two telescopic rods (21c) are both arranged on the transfer bed frame (5), and a C-shaped block (21d) is provided at the movable end of each telescopic rod (21c), and the C-shaped block (21d) is rotatably connected to the corresponding rotating rod (21b).

5. A patient transfer device for critical care clinical use according to claim 4, characterized in that: The transmission assembly (22) includes: A plurality of second rotating shafts (22a) are sleeved with the protective ring pad (1), and both ends of each second rotating shaft (22a) are respectively rotatably connected to a corresponding slider (21a); Wherein, the second rotating shaft (22a) located at the outermost side of the transfer bed frame (5) is connected to the first rotating shaft (23b) via a first conveyor belt (23d); Two second conveyor belts (22b) are symmetrically arranged at both ends of the plurality of second rotating shafts (22a), and each second conveyor belt (22b) is connected to each second rotating shaft (22a).

6. A patient transfer device for critical care clinical use according to claim 4, characterized in that: It also includes a balancing mechanism (3) for maintaining the stability of the transfer bed frame; the balancing mechanism (3) includes: A pushing component (31) is arranged between the transfer bed frame (5) and the lifting base (4), and the upper end of the pushing component (31) passes through the transfer bed frame (5) and is in contact with the extending component (21), and the lower end is connected to the lifting base (4); A counterweight box (32) is in contact with and connected to the push assembly (31), and a plurality of slope slideways (32a) are provided in the counterweight box (32); A plurality of counterweight balls (33), each counterweight ball (33) is located in a corresponding slope slideway (32a).

7. A patient transfer device for critical care clinical use according to claim 6, characterized in that: A limit block (34) is provided in each slope slideway (32a), and a plurality of limit rods (35) respectively matching the limit blocks (34) are provided at the bottom of the counterweight box (32).

8. A patient transfer device for critical care clinical use according to claim 7, characterized in that: The push assembly (31) includes: A piston (31a) is disposed inside the transfer bed frame (5), and a lower end of the piston (31a) is in contact with and connected to the extension assembly (21); A hydraulic cylinder (31b) is provided on the lifting base (4), and the hydraulic cylinder (31b) includes a first hydraulic chamber (31b-1) and a second hydraulic chamber (31b-2); the first hydraulic chamber (31b-1) is connected to the interior of the transfer bed frame (5) via a hydraulic pipe, and the first hydraulic chamber (31b-1) is connected to the second hydraulic chamber (31b-2); A first hydraulic rod (31c) has one end connected to the first hydraulic chamber (31b-1) and a first pushing block (31c-1) provided at the other end, and the first pushing block (31c-1) is in contact with and connected to the bottom surface of the counterweight box (32); The second hydraulic rod (31d) has one end connected to the second hydraulic chamber (31b-2) and the other end provided with a second pushing block (31d-1), and the second pushing block (31d-1) is in contact with and connected to the limiting rod (35).

9. The patient transfer device for critical care clinical use according to claim 1, characterized in that: It also includes a lifting base (4) for adjusting the height of the transfer bed frame (5); the lifting base (4) includes: A connecting plate (41) connected to the bottom surface of the transfer bed frame (5); Two movable brackets (42) are respectively arranged at two ends of the connecting plate (41), and each movable bracket (42) is slidably connected to the connecting plate (41); The lifting assembly (43) is arranged on the connecting plate (41) and is connected to the two movable brackets (42).

10. The patient transfer device for critical care clinical use according to claim 1, characterized in that: It also includes a turning mechanism (7) for turning the fence downward; the turning mechanism (7) includes: Two locking rods (71) are cross-arranged on the sides of the transfer bed frame (5), and each locking rod (71) is slidably connected to the transfer bed frame (5); The adjusting knob (72) is arranged on the side of the transfer bed frame (5) and is engaged with the two positioning rods (71).

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