Medical patient transfer bed
Through the combination of movable bed frame and roller conveyor belt driven by the power mechanism, the problem of the hard work and adverse effects of existing medical handling beds during patient transfer is solved, and the independent movement of the upper and lower surfaces of the movable bed is achieved, simplified the structure and reduced the Manufacturing costs improve the smoothness and safety of patient transfer.
Patent Information
- Application Number
- CN201911061440.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-11-01
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2039-11-01
AI Technical Summary
The existing medical handling bed requires several people to operate during the patient transfer process, which is difficult and easy to have adverse effects on the patients. In addition, the traditional rollers and conveyor belts cannot achieve independent movement of the upper and lower surfaces of the movable bed, making it difficult to achieve smooth patient transfer.
A movable bed frame with power mechanism drive is designed, using a combination of rollers and transmission belts, and the rollers and lower transmission belts are driven by independent power mechanisms, partitions are installed to reduce friction, and transmission is carried out by gears and racks. The system simplifies the structure and controls the movement of the rollers and conveyor belts to achieve independent movement of the upper and lower surfaces of the movable bed.
It achieves smooth transfer of patients, reduces the intensity and impact on patients during the handling process, simplifies the equipment structure, reduces manufacturing costs, and avoids unnecessary movement of the conveyor belt.
Smart Images
Figure CN110623798B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a medical device. Background Art
[0002] The existing medical transport bed generally includes a vehicle body and a bed mounted on the vehicle body, and the bed cannot be moved on the vehicle body. When in use, since the patient needs to be transferred from the bed to the medical transport bed or vice versa, several people are required to carry the bed by the four corners, which is laborious and easily causes adverse effects on the patient. In order to solve this problem, the bed needs to be designed to be movable left and right, and at the same time, the bed needs to have the ability to transport, so as to assist in transferring the patient from the bed or into the bed. Since the movable bed needs to be inserted between the patient and the hospital bed or the operating table, the lower surface of the movable bed cannot move relative to the hospital bed or the operating table during the insertion process of the movable bed between the patient and the hospital bed or the operating table. At the same time, the upper surface of the movable bed cannot move relative to the patient, so that the patient can be smoothly transferred to the movable bed or from the movable bed to the hospital bed or the operating table without lifting the patient significantly. If the traditional roller and conveyor belt method is used, since the direction of the upper side of the conveyor belt must be opposite to the direction of the lower side of the conveyor belt, and they must be linked, therefore, simply using rollers and conveyor belts is obviously unable to achieve the requirement of transferring patients. Summary of the invention
[0003] The object of the present invention is to provide a movable bed for medical patient transfer, which can realize the movement of the upper surface and the lower surface of the movable bed separately.
[0004] The present invention is implemented as follows: it includes a movable bed frame arranged on the bed frame and driven by a power mechanism to move left and right, and a bed arranged on the movable bed frame, wherein the bed includes rollers arranged on the left and right sides of the movable bed frame, transmission belts (belts or cloth belts) wound around the rollers on the left and right sides, a power for driving the rollers to rotate, lower rollers arranged on the left and right sides of the movable bed frame and located below the rollers, and a lower transmission belt (belts or cloth belts) wound around the lower rollers, wherein the lower front end of the lower transmission belt is fixed on the bed frame.
[0005] During operation, when the power mechanism drives the movable bed to move toward the hospital bed or the operating table, since the lower front end of the lower conveyor belt is fixed on the bed frame, even if the movable bed continues to move forward against the hospital bed or the operating table, the lower conveyor belt and the hospital bed or the operating table will not move relative to each other, thereby preventing the sheets on the hospital bed or the operating table from moving during the movement of the movable bed, thereby ensuring smooth patient transfer. The conveyor belt driven by the roller is driven by a power independent of the lower conveyor belt. Therefore, the power can be started as needed to drive the roller to rotate, thereby driving the conveyor belt to move, so as to meet the needs of moving patients when the movable bed moves.
[0006] In order to avoid the conveyor belt and the lower conveyor belt from affecting each other when they move, a partition is set between the conveyor belt and the lower conveyor belt. The partition is made of a material with a small friction coefficient with the conveyor belt and the lower conveyor belt to reduce the friction force when the partition conveyor belt and the lower conveyor belt move relative to each other.
[0007] Here, the power that drives the roller to rotate is a power mechanism. A gear is rotatably arranged under the roller on the outer side of one side of the movable bed frame. A transmission gear that can mesh with the gear is arranged on the shaft of the roller on the movable bed frame above the gear. The transmission gear slides along the axis of the roller and drives the roller to rotate. A rack guiding the bed side is arranged on the bed frame below the gear, and the gear meshes with the rack.
[0008] During operation, the power mechanism drives the movable bed frame to move left and right, causing the gear to rotate along the rack, driving the transmission gear to rotate, and then driving the conveyor belt to move through the roller. If the conveyor belt is required not to move with the movable bed frame, it is only necessary to make the transmission gear not mesh with the gear.
[0009] Racks, gears and transmission gears are used to transmit the moving power of the movable bed to the rollers and transmission belt of the bed, and the transmission gear that drives the rollers can move axially along the axis of the rollers so that the transmission gear can be set to mesh with the gears as needed. In this way, there is no need to set up an additional power mechanism to drive the rollers, thereby simplifying the overall structure of the movable bed and reducing the manufacturing cost. At the same time, the rotation of the rollers can be conveniently controlled.
[0010] A spring is arranged on the shaft of the roller to press the transmission gear toward the gear. A circular rotating part is connected to the outside of the transmission gear. A circular groove is arranged on the outer surface of the rotating part. A shift fork with a shift lever is arranged in the groove. The width of the groove is greater than the thickness of the shift fork so that the shift fork can move left and right along the groove. The shift lever is connected to the electric push rod. Under normal circumstances, the spring presses the transmission gear toward the gear, so that the gear and the transmission gear are meshed. In this way, the rotating gear drives the transmission gear to rotate, and drives the transmission belt to move through the roller; when the transmission gear needs to leave the gear, the shift lever is pushed by the electric push rod, and the shift lever drives the transmission part to move outward through the shift fork, and drives the transmission gear through the transmission part to overcome the pressure of the spring and separate it from the gear. In this way, the rotation of the gear will not be transmitted to the transmission gear, so that the belt on the movable bed will not move.
[0011] Compared with the prior art, the present invention has the advantage of being able to realize the movement of the upper surface and the lower surface of the movable bed separately. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of the present invention;
[0013] Figure 2 for Figure 1 Right side view of the gear and rack part;
[0014] Figure 3 A flowchart for moving a patient from a hospital bed or operating table to a transfer bed of the present invention;
[0015] Figure 4 The present invention is a flowchart for moving a patient from the transfer bed of the present invention to a hospital bed or an operating table. DETAILED DESCRIPTION
[0016] The present invention is now described in further detail with reference to the accompanying drawings and embodiments:
[0017] like Figure 1 As shown, the movable bed 2 of the present invention includes a movable bed frame 2a arranged on the bed frame 1 and driven by a power mechanism 3 to move left and right, and a bed 2b arranged on the movable bed frame 2a. The bed 2b includes rollers 2b1 arranged on the left and right sides of the movable bed frame 2a, transmission belts 2b2 (belts or cloth belts) wound around the rollers 2b1 on the left and right sides, a power for driving the rollers 2b2 to rotate, lower rollers 2b5 arranged on the left and right sides of the movable bed frame 2a and located below the rollers 2b1, and a lower transmission belt 2b6 (belts or cloth belts) wound around the lower rollers 2b5, and the lower front end of the lower transmission belt 2b6 is fixed on the bed frame 1.
[0018] like Figure 1As shown, a partition plate 2b7 is provided between the upper conveyor belt 2b2 and the lower conveyor belt 2b6, and the partition plate 2b7 is a nylon lubricating plate. The partition plate 2b7 plays the role of isolation and lubrication, so that the movement of the upper conveyor belt 2b2 and the lower conveyor belt 2b6 will not be affected by each other.
[0019] like Figure 1 As shown, the power that drives the roller 2b2 to rotate is the power mechanism 3. A gear 4 is rotatably arranged under the roller 2b1 on the outer side of one side of the movable bed frame 2a. A transmission gear 5 that can mesh with the gear 4 is arranged on the shaft of the roller 2b1 on the movable bed frame 2a above the gear 4. The transmission gear 5 slides along the axis of the roller 2b1 (a key or flange is arranged on the shaft of the roller 2b1, and a guide groove is arranged on the transmission gear 5 corresponding to the key or flange) to move and drive the roller 2b1 to rotate. A rack 6 guiding the bed side is arranged on the bed frame 1 below the gear 4, and the gear 4 meshes with the rack 6.
[0020] like Figure 1 As shown, the diameter of one of the rollers 2b1 connected to the transmission gear 5 is larger than that of the other transmission gear 5. An upper guide roller 2b3 and a lower guide roller 2b4 are provided on the movable bed frame 2a at one of the rollers 2b1. Under the pressure of the upper guide rollers 2b3 and the lower guide rollers 2b4, the transmission belt 2b2 is in a horizontal state. In this way, since the diameter of the other roller 2b1 is small, the thickness of the movable transmission 2 is small, and it is easy to extend between the patient and the bed or the operating table. Since the diameter of one of the rollers 2b1 connected to the transmission gear 5 is large, there is enough space to install the transmission gear 5, the gear 4 and other components.
[0021] like Figure 1 As shown, a cover 2d fixedly connected to the movable bed frame 2a is provided on one of the rollers 2b1 connected to the transmission gear 5, and the cover 2d shields the upper guide roller 2b3 to prevent the upper guide roller 2b3 from affecting objects or patients on the bed 2b.
[0022] like Figure 1 , 2 As shown, a spring 7 for pressing the transmission gear 5 toward the gear 4 is arranged on the shaft 2b11 of the roller 2b1 (a screw 8 is screwed on the shaft end of the shaft 2b11 of the roller 2b1, and the spring 7 is located between the screw 8 and the transmission gear 5), and an annular rotating member 9 is connected to the outer side of the transmission gear 5 (the rotating member 9 is fixedly connected to the transmission gear 5 or is integrally processed), and an annular groove 9a is arranged on the outer surface of the rotating member 9, and a shift fork 11 with a shift rod 10 is arranged in the groove 9a, and the width of the groove 9a is greater than the thickness of the shift fork 11, and the shift rod 10 is connected to an electric push rod 12 arranged on the movable bed frame 2a.
[0023] like Figure 1As shown, the power mechanism 3 includes a motor 3a arranged on the bed frame 1, a screw rod 3c arranged on the bed frame 1 and driven by the motor 3a through a transmission mechanism 3b (a transmission wheel / transmission belt transmission mechanism or a sprocket / chain transmission mechanism) to rotate, and a nut 3d screwed on the screw rod 3c, and the nut 3d is connected to the movable bed frame 2a.
[0024] like Figure 3 As shown, when patient A needs to be transferred from the hospital bed or operating table B to the movable bed 2, the movable bed 2 is first driven by the power mechanism 3 to move out of the side of the bed from the bed frame 1 and lean against the hospital bed or operating table B, and then continues to move forward under the patient A. As the movable bed 2 moves forward, the rack 6 drives the gear 4 to rotate, and the gear 4 drives the transmission gear 5 to rotate in the opposite direction, and drives the conveyor belt 2b2 to move toward the movable bed 2 through the roller 2b1. As the movable bed 2 moves under the patient A, the conveyor belt 2b2 and the patient A will not move relative to each other due to the forward movement of the movable bed 2, so that the patient A moves onto the movable bed 2, thereby effectively reducing the work of transporting the patient A and making it easier for the patient A to move onto the movable bed 2. At the same time, as the movable bed 2 moves forward, the lower conveyor belt 2b6 rotates counterclockwise, and the lower conveyor belt 2b6 and the hospital bed Or there is no relative movement between the two operating tables B, which is conducive to the movable bed 2 to move forward against the hospital bed or the operating table B, and at the same time, it will not pull the bed sheet and affect the movement of patient A to the movable bed; after patient A moves onto the movable bed 2, the electric push rod 12 is used to make the transmission gear 5 leave the gear 4, and then the movable bed 2 is driven to reset by the power mechanism 3. Since the transmission gear 5 leaves the gear 4, the gear 4 will not drive the transmission gear 5 to rotate, so that the transmission belt 2b2 will not move until the movable bed 2 is reset. During this process, the transmission gear 5 always leaves the gear 4. In this way, patient A is transferred from the hospital bed or the operating table B to the medical patient transfer bed of the present invention. During this process, since there is no need to transport the patient over a long distance and at a high level, the patient is transferred with less effort, avoiding the adverse effects of the transportation process on the patient.
[0025] like Figure 4As shown, when it is necessary to transfer the patient A from the movable bed 2 of the present invention to the sickbed or operating table B, the electric push rod 12 is used to make the transmission gear 5 leave the gear 4, and the movable bed 2 is first driven by the power mechanism 3 to move from the bed frame 1 to the side of the bed frame 1 and lean against the sickbed or operating table B, so that the patient A is located above the sickbed or operating table B, then the electric push rod 12 is reset, so that the transmission gear 5 is always meshed with the gear 4, and then the power mechanism 3 is used to drive the movable bed 2 to move from the sickbed or operating table B back to the bed frame 1. In this process, since the transmission gear 5 moves to the gear 4, it is always meshed with the gear 4. In this way, the movable bed 2 When the bed 2 moves back, the rack 6 drives the gear 4 to rotate, and the gear 4 drives the transmission gear 5 to rotate. The transmission gear 5 drives the conveyor belt 2b2 to move toward the bed or operating table B through the roller 2b1. The patient A and the bed or operating table B will not move relative to each other due to the resetting of the movable bed 2, so that the patient A will not move back with the movable bed 2. As the movable bed 2 is transferred from the bed or operating table B to the medical patient transfer bed of the present invention, the patient A is transferred to the bed or operating table B. Since there is no need to transport the patient over long distances and at high and low altitudes, the patient can be transferred with less effort, and the adverse effects of the transportation process on the patient can be avoided.
[0026] In order to show the structure clearly, the roller 2b1 and the lower roller 2b5 in the attached drawings are enlarged. In fact, the diameters of the roller 2b1 and the lower roller 2b5 are very small, so that the thickness of the movable bed 2 is small and it is easy to extend between the patient A and the bed or the operating table B.
Claims
1. A movable bed for medical patient transfer, including a movable bed frame that is arranged on a bed frame and is driven by a power mechanism to move left and right, and a bed arranged on the movable bed frame, It is characterized in that The bed comprises rollers arranged on the left and right sides of the movable bed frame, transmission belts wound around the rollers on the left and right sides, a power for driving the rollers to rotate, lower rollers arranged on the left and right sides of the movable bed frame and located below the rollers, and a lower transmission belt wound around the lower rollers, the lower front end of the lower transmission belt is fixed on the bed frame, a partition is arranged between the transmission belt and the lower transmission belt, the power for driving the rollers to rotate is a power mechanism, a gear is arranged to rotate under the roller on the outer side of one side of the movable bed frame, a transmission gear that can mesh with the gear is arranged on the shaft of the roller on the movable bed frame above the gear, the transmission gear slides and moves along the axis of the roller and drives the roller to rotate, a rack guiding the bed side is arranged on the bed frame below the gear, the gear meshes with the rack, a spring for pressing the transmission gear toward the gear is arranged on the shaft of the roller, an annular rotating member is connected to the outer side of the transmission gear, an annular groove is arranged on the outer surface of the rotating member, a shift fork with a shift lever is arranged in the groove, the width of the groove is greater than the thickness of the shift fork, and the shift lever is connected to an electric push rod arranged on the movable bed frame; When it is necessary to transfer the patient from the hospital bed or operating table to the mobile bed, the power mechanism is first used to drive the mobile bed to move out of the side of the bed frame and lean against the hospital bed or operating table, and then continue to move forward under the patient. As the mobile bed moves forward, the rack drives the gear to rotate, and the gear drives the transmission gear to rotate in the opposite direction, driving the transmission belt to move toward the mobile bed through the roller, and then as the mobile bed moves under the patient, the transmission belt and the patient will not move relative to each other due to the forward movement of the mobile bed, thereby moving the patient onto the mobile bed; after the patient is moved to the mobile bed, the transmission gear is separated from the gear, and then the power mechanism is used to drive the mobile bed to reset. Since the transmission gear is separated from the gear, the gear will not drive the transmission gear to rotate, and thus the transmission belt will not move until the mobile bed is reset, thus transferring the patient from the hospital bed or operating table to the medical patient transfer bed; when it is necessary to transfer the patient When transferring from a movable bed to a hospital bed or an operating table, the transmission gear leaves the gear, and the movable bed is first driven by a power mechanism to move from the bed frame out of the side of the bed frame and against the hospital bed or the operating table, so that the patient is located above the hospital bed or the operating table, and then the transmission gear is always engaged with the gear, and then the movable bed is driven by the power mechanism to move from the hospital bed or the operating table back to the bed frame. During this process, the transmission gear moves to the gear so that it is always engaged with the gear. In this way, when the movable bed moves back, the rack drives the gear to rotate, and the gear drives the transmission gear to rotate. The transmission gear drives the transmission belt to move toward the hospital bed or the operating table through the roller. The patient and the hospital bed or the operating table will not move relative to each other due to the resetting of the movable bed, so that the patient will not move back with the movable bed. As the movable bed is transferred from the hospital bed or the operating table to the movable bed, the patient is transferred to the hospital bed or the operating table.
2. The movable bed for medical patient transfer according to claim 1, It is characterized in that The partition is a nylon lubricated plate.
3. The movable bed for medical patient transfer according to claim 1 or 2, It is characterized in that The diameter of one of the rollers connected with the transmission gear is larger than that of the other transmission gear, and an upper guide roller and a lower guide roller are arranged on the movable bed frame at the position of one of the rollers.
4. The movable bed for medical patient transfer according to claim 1 or 2, It is characterized in that A cover fixedly connected to the movable bed frame is arranged on one of the rollers connected to the transmission gear, and the cover shields the upper guide roller.
5. The movable bed for medical patient transfer according to claim 3, It is characterized in that A cover fixedly connected to the movable bed frame is arranged on one of the rollers connected to the transmission gear, and the cover shields the upper guide roller.