Multifunctional shifting bed

Abstract

The invention relates to a multifunctional moving bed which comprises a plurality of body moving devices, a bed frame, supporting legs and a moving system. Wherein the plurality of body shifting devices are respectively arranged at main bearing positions of the bed board when the body of a patient lies on the bed board, and are used for shifting body parts at the main bearing positions at different controllable speeds; the bed frame is used for mutually connecting the plurality of body shifting devices and providing support for the body shifting devices so as to form a planar bed board; the supporting legs are arranged below the bed frame and are used for supporting the bed frame; the moving system is arranged at the bottoms of the supporting legs and provides a moving function for the supporting legs. When a patient lies on the bed board, the independent body shifting devices are arranged at different main bearing positions of the bed board respectively, the body parts of the main bearing positions are shifted at different controllable speeds, and the safety of postoperative weak and weak patients during transferring is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of hospital beds, and particularly relates to a multifunctional transfer bed. Background Art

[0002] When treating patients in a hospital, it is usually necessary to transfer the patient's position to cooperate with the use of medical instruments. Especially after surgery, it is usually necessary to transfer the patient from a nursing hospital bed to a multifunctional transfer chair bed. However, since the patient's physical functions are greatly affected after surgery and their mobility is limited, the transfer process usually relies on the assistance of multiple people to complete.

[0003] The existing publicly disclosed patent document CN116549225A discloses a surgical patient transfer device and method for clinical use, which discloses that when loading a patient: fix this device to the edge of the operating bed, align it along the long side, and make the upper surface of the translation plate slightly higher than the upper surface of the operating bed; then, through jog control, insert the translation plate under the patient, lift the patient, and then fix the patient with straps at different positions according to the specific situation. After that, the translation plate moves horizontally back to the starting position. When unloading the patient: fix this device to the edge of the hospital bed, align it along the long side, and make the upper surface of the translation plate slightly higher than the upper surface of the hospital bed; then extend the translation plate to gently place the patient on the hospital bed. After releasing the straps, the translation plate retracts. Although this method can reduce the labor input, it cannot achieve independent segmented control of each body part. When the translation plate moves horizontally, due to the different load-bearing conditions of each body part and the speed changes caused by acceleration and deceleration when starting and ending the translation, the patient's body tilts (it is estimated that the body position offset before and after the displacement of the existing product can reach 2 - 5°). This rapid speed change and body position change will cause discomfort to postoperative or weak patients during the displacement. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multifunctional transfer bed that can achieve non-tilting translation based on the differential transmission speed and weight matching of each body part.

[0005] The technical solution adopted by the present invention to solve its technical problems is: to provide a multifunctional transfer bed, including: a plurality of body displacement devices, respectively arranged at the main load-bearing positions of the bed board when the patient's body lies flat on the bed board, for displacing each body part at the main load-bearing positions at controllable different speeds; a bed frame, connecting the plurality of body displacement devices to each other and providing support for the body displacement devices to form a flat bed board; legs, arranged under the bed frame for supporting the bed frame; a moving system, arranged at the bottom of the legs to provide a moving function for the legs.

[0006] Preferably, the main load-bearing positions include the back region, the hip region, and the calf region, and the body displacement device includes a back displacement device corresponding to the back region, a hip displacement device corresponding to the hip region, and a calf displacement device corresponding to the calf region.

[0007] Preferably, the body displacement device includes: a retractable bed board for moving the patient's body out of or into the multifunctional displacement bed; a flat conveyor belt arranged around the main load-bearing positions of the bed board, with the conveying direction being the width direction of the multifunctional displacement bed; a transmission mechanism including a driving wheel and a driven wheel that match the flat conveyor belt, where the driving wheel is used to drive the flat conveyor belt to move forward or backward; and a first driving motor for driving the driving wheel to rotate forward or backward.

[0008] Preferably, the retractable bed board is slidably mounted on the bed frame along the width direction of the multifunctional displacement bed through a slide rail, and the retractable bed board is driven by a second driving motor to move forward and backward. One end of the second driving motor is fixed on the bed frame, and the telescopic end is connected to the retractable bed board through a connecting plate to control the retraction and extension of the retractable bed board along the slide rail.

[0009] Preferably, the transmission mechanism further includes a tensioning wheel.

[0010] Preferably, the body displacement device further includes: a positioning system for obtaining the current position of the flat conveyor belt and for confirming the travel distance of the flat conveyor belt; a pressure sensor array for determining the center of gravity position of the flat conveyor belt corresponding to different main load-bearing positions when the patient lies flat; and a control system for collecting data from the positioning system and the pressure sensor array and respectively controlling the rotation speeds of different driving motors according to the data.

[0011] Preferably, the rotation speed of the driving motor of the flat conveyor belt with a rearward center of gravity position is higher than the rotation speed of the driving motor of the flat conveyor belt with a forward center of gravity position.

[0012] Preferably, the bed frame is provided with: a retractable bed board on which the body displacement device is provided; and inter-frame connectors for connecting the two long sides of adjacent bed frames.

[0013] Preferably, a lifting system is provided inside the support legs for controlling the height of the top plane of the bed frame.

[0014] Preferably, the moving system includes universal wheels provided at the bottom of the support legs.

[0015] The beneficial effects are as follows: Compared with the prior art, in the present invention, when the patient lies flat on the bed board, separate body displacement devices are respectively arranged at different main load-bearing positions of the bed board, and each body part at the main load-bearing positions is displaced at controllable different speeds, ensuring the safety of postoperative weak and physically weak patients during transfer.

[0016] In addition, the body displacement device is additionally provided with a positioning system and a pressure sensor array, enabling the present invention to achieve tilt-free translation with different transmission speeds and weight matching based on different body parts. In practice, it is measured that the body position offset of the patient during the movement process is <1°. Further, the body displacement device controls the servo motor through a control system to drive the flat conveyor belt to move with a variable-speed acceleration curve, so as to avoid impact during the start-up and stop processes, ensure the smoothness of postoperative weak and physically weak patients during transfer, and improve the use comfort of the patients. Description of the Drawings

[0017] Figure 1 It is a three-dimensional view of a multifunctional transfer bed.

[0018] Figure 2 It is a front view of a multifunctional transfer bed.

[0019] Figure 3 It is Figure 1 An enlarged structural schematic diagram of the middle back displacement device.

[0020] Figure 4 It is Figure 3 An enlarged sectional view.

[0021] Among them, 1 - body displacement device; 101 - back displacement device; 102 - hip displacement device; 103 - calf displacement device; 104 - flat conveyor belt; 105 - first driving motor; 106 - driving wheel; 107 - driven wheel; 108 - tensioning wheel; 109 - second driving motor; 1010 - slide rail; 2 - bed frame; 201 - telescopic bed board; 202 - inter-frame connecting piece; 3 - leg; 301 - lifting system; 4 - moving system; 401 - universal wheel.

[0022] The same reference numerals in each figure represent the same component. Detailed Embodiments

[0023] The following further elaborates the present invention in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0024] Such as Figures 1 - 2As shown in the figure, the present invention provides a multi-functional transfer bed, which includes a plurality of body transfer devices 1, a bed frame 2, legs 3 and a moving system 4. Among them, the plurality of body transfer devices 1 are respectively arranged at the main load-bearing positions of the bed board when the patient's body lies flat on the bed board, and are used to transfer each body part at the main load-bearing position at controllable different speeds; the bed frame 2 connects the plurality of body transfer devices 1 to each other and provides support for the body transfer devices 1 to form a flat bed board; the legs 3 are arranged under the bed frame 2 and are used to support the bed frame 2; the moving system 4 is arranged at the bottom of the legs 3 to provide a moving function for the legs 3.

[0025] In a specific embodiment as Figure 2 shown, the main load-bearing positions include the back area, the buttocks area and the calf area. The body transfer device 1 includes a back transfer device 101 corresponding to the back area, a buttocks transfer device 102 corresponding to the buttocks area and a calf transfer device 103 corresponding to the calf area. The length of the body transfer device 1 is longer than the length of the main load-bearing position.

[0026] In other embodiments, body transfer devices 1 can be added to the thigh area and the foot area, or the back area can be split into a head area, the thigh area and the calf area can be combined into a leg area, and the calf area and the foot area can be combined into a lower limb area, etc., to respectively increase or decrease the body transfer devices 1.

[0027] In a specific embodiment as Figures 3 - 4 shown, the body transfer device includes a telescopic bed board, a flat conveyor belt 104, a transmission mechanism and a first driving motor 105. The telescopic bed board is used to move the patient's body out of or into the multi-functional transfer bed; the flat conveyor belt 104 is arranged around the main load-bearing position of the bed board, and the conveying direction is the width direction of the multi-functional transfer bed; the transmission mechanism includes a driving wheel 106 and a driven wheel 107 that match the flat conveyor belt 104, and the driving wheel 106 is used to drive the flat conveyor belt 104 to move forward or backward; the first driving motor 105 is a rotating motor and is used to drive the driving wheel 106 to rotate forward or backward, and the driven wheel 107 plays a role in supporting the other end of the flat conveyor belt.

[0028] The telescopic bed board is slidably installed on the bed frame 2 through a slide rail 1010. One end of the first driving motor 105 is fixed on the bed board 2, and the output end is connected to the driving wheel 106; the second driving motor 109 is a telescopic motor, one end of which is fixed on the bed frame 2, and the telescopic end is connected to the telescopic bed board through a connecting plate to control the telescopic movement of the telescopic bed board along the slide rail 1010.

[0029] In addition, the transmission mechanism further includes a tension pulley 108. The tension pulley 108 ensures that the flat conveyor belt 104 remains in an appropriate taut state during operation by adjusting the tension of the flat conveyor belt 104. The appropriate tension can prevent the slipping phenomenon caused by the over-looseness of the flat conveyor belt 104, thereby ensuring the effective transmission of power.

[0030] The body displacement device 1 further includes a positioning system, a pressure sensor array, and a control system. The positioning system is a gyroscope + grating scale composite positioning system with an accuracy of up to ±0.5 mm, which is used to obtain the current position of the flat conveyor belt 104 and confirm the travel distance of the flat conveyor belt 104. The pressure sensor array is used to determine the center of gravity position of the flat conveyor belt 104 corresponding to different main load-bearing positions when the patient lies flat. The control system is used to collect data from the positioning system and the pressure sensor array and control the rotation speeds of different first drive motors 105 according to the data.

[0031] In a general embodiment, the rotation speed of the first drive motor 105 of the flat conveyor belt 104 with the center of gravity position at the rear is higher than that of the first drive motor 105 of the flat conveyor belt 104 with the center of gravity position at the front, so that the rear body part moves forward faster, ensuring that the patient's body does not tilt when the whole body arrives in place.

[0032] In another specific embodiment, the output power of the first drive motor 105 can be further adjusted in detail through the control system. For example, it is controlled that the flat conveyor belt 104 has a slow speed at startup, a fast speed during operation, and a slow speed again when reaching the position, and the flat conveyor belt 104 is driven to move with a variable speed acceleration curve to avoid impact during startup and stop, ensure the smoothness of the transfer of postoperative weak and physically weak patients, and improve the comfort of the patient's use.

[0033] In one such Figure 1In the specific embodiment shown, in order to achieve separate control of different main load-bearing positions, the bed frame 2 is arranged in sections, and is provided with a telescopic bed board 201 and an inter-frame connecting member 202. The telescopic bed board 201 is provided with the body displacement device 1, the first drive motor 105 and the transmission system are arranged below the telescopic bed board 201, the upper half section of the flat conveyor belt 104 is laid on the upper surface of the telescopic bed board 201, one end of the flat conveyor belt 104 passes through the opening on the surface of the telescopic bed board 201 and bypasses the drive wheel 106 downward, and the other end winds back to the upper surface of the telescopic bed board 201 from the end of the telescopic bed board 201 far away from the opening to form a conveyor belt loop; the inter-frame connecting member 202 is used to connect the long sides of two adjacent bed frames 2. In this embodiment, the inter-frame connecting member 202 is a hinge, so that the telescopic bed board 201 can achieve a folding function. In other embodiments, a connecting rod can also be directly adopted, so that the telescopic bed board 201 cannot be folded.

[0034] In a specific embodiment as Figure 2 shown, a lifting system 301 is arranged in the leg 3 for controlling the height of the top plane of the bed frame 2, which can be adjusted according to the height of the ward hospital bed and the height of the medical equipment after transfer during use. The lifting system 301 is an electric telescopic leg. When the inter-frame connecting member 202 is a connecting rod, the number of the electric telescopic legs is one, which is arranged below the bed frame 2 of the hip displacement device 102; when the inter-frame connecting member 202 is a hinge, the number of the electric telescopic legs is arranged according to the number of partitions of the main load-bearing positions divided, so as to lift the entire bed surface simultaneously.

[0035] An example of the use steps of the present invention is as follows: When transferring a patient from the displacement bed to the hospital bed, first, the lower surface of the flat conveyor belt is lifted to the height position of the upper surface of the hospital bed through the lifting system 301; the telescopic bed board is driven by the second drive motor 109 to extend to the hospital bed; then, while the telescopic bed board is driven by the second drive motor 109 to retract, the first drive motor 105 controls the flat conveyor belt 104 to extend outwards at a controllable speed to slowly and stably place the patient's body on the hospital bed.

[0036] In a specific embodiment as Figure 2 shown, the moving system 4 includes universal wheels 401 arranged at the bottom of the legs 3, and the number of the universal wheels 401 is four, which are respectively arranged at the four corners of the bottom of the legs 3. The moving system 4 facilitates an assistant to push the multifunctional displacement bed to transfer the patient from the ward to other areas such as a CT room.

Claims

1. A multifunctional transfer bed, characterized in that: include: A plurality of body shifting devices, respectively arranged at the main load-bearing positions of the bed board when the patient's body lies flat on the bed board, for shifting various body parts at the main load-bearing positions at controllable different speeds; A bed frame, connecting a plurality of the body shifting devices to each other and providing support for the body shifting devices to form a flat bed board; A leg, disposed below the bed frame, for supporting the bed frame; The moving system is arranged at the bottom of the supporting leg and provides a moving function for the supporting leg.

2. The multifunctional transfer bed according to claim 1, characterized in that: The main load-bearing positions include a back area, a buttocks area and a calf area, and the body displacement device includes a back displacement device corresponding to the back area, a buttocks displacement device corresponding to the buttocks area and a calf displacement device corresponding to the calf area.

3. The multifunctional transfer bed according to claim 1, characterized in that: The body displacement device comprises: A retractable bed board is used to move the patient's body out of or into the multifunctional transfer bed; A flat conveyor belt is arranged around the main load-bearing position of the bed board, and the conveying direction is the width direction of the multifunctional shift bed; a transmission mechanism includes a driving wheel and a driven wheel matched with the flat conveyor belt, and the driving wheel is used to drive the flat conveyor belt to move forward or reverse; The first driving motor is used to drive the driving wheel to rotate forward or reverse.

4. The multifunctional transfer bed according to claim 3, characterized in that: The retractable bed board can be slidably installed on the bed frame along the width direction of the multifunctional shift bed through a slide rail. The retractable bed board is driven forward and backward by a second drive motor. One end of the second drive motor is fixed to the bed frame, and the retractable end is connected to the retractable bed board through a connecting plate to control the retractable bed board along the slide rail.

5. The multifunctional transfer bed according to claim 3, characterized in that: The transmission mechanism also includes a tensioning wheel.

6. The multifunctional transfer bed according to claim 3, characterized in that: The body displacement device further comprises: a positioning system for acquiring the current position of the planar conveyor belt and for confirming the travel distance of the planar conveyor belt; A pressure sensor array for determining the position of the center of gravity of the planar conveyor belt corresponding to different main load-bearing positions when the patient lies flat; The control system collects data from the positioning system and the pressure sensor array and controls the rotation speeds of different drive motors according to the data.

7. The multifunctional transfer bed according to claim 6, characterized in that: The rotation speed of the driving motor of the planar conveyor belt with the center of gravity at the rear is higher than the rotation speed of the driving motor of the planar conveyor belt with the center of gravity at the front.

8. The multifunctional transfer bed according to claim 1, characterized in that: The bed frame is provided with: a retractable bed board on which the body shifting device is provided; Inter-frame connector, used to connect the two long sides of adjacent bed frames.

9. The multifunctional transfer bed according to claim 1, characterized in that: A lifting system is arranged inside the supporting legs to control the height of the top plane of the bed frame.

10. The multifunctional transfer bed according to claim 1, characterized in that: The moving system comprises a universal wheel arranged at the bottom of the supporting leg.

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