Nursing bed for cardiothoracic surgery rehabilitation

Abstract

The invention relates to the field of medical equipment, in particular to a nursing bed for cardiothoracic surgery rehabilitation and a patient rollover assisting method. The nursing bed comprises a bed frame body and a bed board body, the bed board body is composed of a plurality of bed board strips connected through connecting belts, and a lifting mechanism and a locking mechanism are arranged between the bed frame and the bed board. The lifting mechanism is used for pulling the bed battens upwards, and the locking mechanism is used for temporarily fixing the bed battens. In addition, a plurality of frame battens with trapezoidal sections are arranged below the bed frame body, and the bed battens are also designed into trapezoidal sections. The contact surfaces of the bed battens and the frame battens are provided with the ventilation grooves and the balls, so that comfort is improved, and friction is reduced. The lifting mechanism comprises a lifting box and a lifting cable, and precise control is achieved through a walking rod and a walking drive. When the patient turns on one side, the bed battens at the fulcrum positions are fixed through the locking mechanisms, the heights of other bed battens are adjusted through the lifting mechanisms, and stable turning on one side of the patient is achieved. And the rollover safety, comfort and convenience of the patient are improved.

Description

Technical Field

[0001] The present application relates to the field of nursing beds, and in particular to a nursing bed for rehabilitation of cardiothoracic surgery. Background Art

[0002] Patients who have undergone cardiothoracic surgery need to change their body positions regularly during the recovery period to reduce complications caused by long-term bed rest, such as pressure sores and lung infections. The traditional way is to rely on the help of family members or medical staff to make the patient lie on his side, which is done by pulling and supporting by hand. This method can easily cause damage to the patient's wound if the hand is loose. Therefore, some nursing beds have the function of mechanically supporting the patient on one side, which can provide more stable auxiliary support for the patient and help the patient adjust to a side-lying position.

[0003] The existing Chinese patent with publication number CN111150581A discloses a postoperative nursing bed for thoracic surgery, which includes a support shell, and the upper surface of the support shell near the middle thereof is fixedly connected to two support seats, and the opposite sides of the two support seats are hingedly connected to a first bed board and a second bed board, and the inner wall of the support shell is fixedly installed with a rollover mechanism and an adjustment mechanism, and the patient's rollover is achieved by controlling the two bed boards to flip.

[0004] With respect to the above-mentioned related technologies, the inventors believe that there are the following defects. In actual use, patients often sleep near the middle of the entire nursing bed, that is, their backs just cover the hinge position of the first bed board and the second bed board, so that during the rollover process, the patient's back is in a vacant state and cannot be effectively supported, so it needs to be improved. Summary of the invention

[0005] In order to allow the patient's back to be effectively supported during the side-rolling process, the present application provides a nursing bed for cardiothoracic surgery rehabilitation.

[0006] In the first aspect, the present application provides a cardiothoracic surgery rehabilitation nursing bed adopts the following technical solution: A nursing bed for rehabilitation of cardiothoracic surgery comprises a bed frame body and a bed board body, the bed board body comprises a plurality of bed board strips, the plurality of bed board strips are connected by connecting belts, a lifting mechanism for pulling the bed board strips upwards is connected between the bed frame body and the bed board body, and a locking mechanism for temporarily fixing the bed board strips relative to the bed frame body is connected between the bed frame body and the bed board strips.

[0007] By adopting the above technical solution: 1. By designing the bed board body to be composed of a number of bed board strips and connecting them through connecting belts, a "flexible" bed board body is formed, which enables the bed board strips and connecting belts to better fit the patient's back during the lifting process, thereby improving the patient's comfort and safety and reducing the discomfort caused by the stiffness of the bed board.

[0008] 2. The design of the lifting mechanism allows for precise upward traction of specific bed slats, achieving personalized support for different parts of the patient. Especially during rollover, it ensures that all parts of the patient's back are effectively supported, preventing pain or injury caused by uneven local force.

[0009] 3. The introduction of the locking mechanism can fix the key bed slats in a specific position during the rollover process to prevent them from moving with other bed slats, thereby ensuring the stability and reliability of the rollover process, reducing the risk of patients slipping during the rollover process, and improving the safety performance of the nursing bed.

[0010] Optionally, the bed frame body is further provided with a plurality of frame slats below the bed board body, the cross-section of the frame slats is a trapezoid that is small at the top and large at the bottom, and the cross-section of the bed board slats is a trapezoid that is large at the top and small at the bottom, and there is a gap between any two adjacent frame slats for the bed board slats to be inserted.

[0011] By adopting the above technical solution, the arrangement of several frame slats allows the bed slats to be inserted at different positions, thereby realizing flexible adjustment of the bed slats. The cross-sections of the bed slats and the frame slats are designed to be matched with each other in a trapezoidal shape, which ensures the stability of the bed slats after being inserted into the gap, while reducing the friction between the bed slats and the frame slats, making it easier to lift and bend the bed slats. This design not only improves the flexibility of the bed slats, but also ensures that the patient's back can be effectively supported at all parts during the rollover process, preventing discomfort or injury caused by the instability of the bed slats.

[0012] Optionally, the locking mechanism includes a connected bed board locking rod and a frame board locking rod, the bed board strips are provided with bed board locking holes for the bed board locking rod to be inserted, and the frame board strips are provided with frame board locking holes for the frame board locking rod to be inserted.

[0013] By adopting the above technical solution, this design allows specific bed slats to be locked when needed to prevent them from moving unnecessarily during the assisted rollover process, ensuring the safety and comfort of the patient. At the same time, this locking mechanism can also prevent the entire bed body from being lifted when the lifting mechanism fails unexpectedly, further improving the reliability of the system.

[0014] Optionally, the bed frame body is provided with a slide groove, and a plurality of the frame slats are slidably connected to the slide groove, and the bed frame body is provided with a frame plate drive for driving the plurality of frame slats to slide.

[0015] By adopting the above technical solution, the frame slats can be flexibly adjusted, so that the frame slats can slide in the slide groove, thereby adjusting the support position of the bed slats according to the needs of different patients. In addition, through the setting of the frame drive, the movement of the frame slats can be accurately controlled to ensure that the patient's back can obtain stable support during the assisted rollover process, reduce the risk of slippage, and improve the safety and comfort of the rollover process. At the same time, this design also helps to optimize the air permeability of the bed. By adjusting the relative position between the frame slats and the bed slats, the vertical space for air circulation can be adjusted to improve the comfort of patients during rehabilitation.

[0016] Optionally, the side walls where the bed slats and the frame slats are in contact are provided with ventilation grooves.

[0017] The above technical solutions can help improve the comfort of patients during long periods of bed rest. The design of the ventilation groove increases air circulation, reduces the accumulation of moisture and heat between the patient's back and the bed board, reduces the risk of pressure sores, and also helps keep the skin dry and reduce the possibility of infection.

[0018] Optionally, a ball is rotatably arranged in the ventilation groove, and the ball extends out of the ventilation groove.

[0019] By adopting the above technical solution, the friction between the bed slats and the frame slats is further reduced, the service life of the bed slats and the frame slats is extended, and at the same time the stability and reliability of the movement of the bed slats during the lifting process are improved.

[0020] Optionally, the lifting mechanism includes a lifting box and a lifting cable, the lifting cable is connected between the bed board body and the lifting box, the bed frame body is provided with a pair of walking rods, the lifting box is provided with a pair of walking holes, the two walking rods are threadedly connected to the corresponding walking holes, and the bed frame body is provided with a walking drive for driving the two walking rods to rotate.

[0021] By adopting the above technical solution, the setting of the lifting mechanism enables the bed slats to be accurately pulled upward, thereby realizing the bending of the bed body and helping the patient to roll over. The cooperation between the lifting box and the walking rod enables the traction point of the lifting cable to move on the bed frame body, thereby adapting to different rollover requirements. At the same time, the setting of the walking drive makes the movement of the lifting box more stable and controllable, improving the safety and comfort of the rollover operation.

[0022] Optionally, the lifting box is rotatably provided with a wire cup, the lifting cable is wound around the wire cup, and the lifting box is provided with a winding drive for driving the wire cup to rotate.

[0023] By adopting the above technical solution, the orderly retraction and release of the lifting cables is achieved, ensuring the smoothness and reliability of the cables during the lifting process, avoiding the jamming or breakage caused by improper cable winding, and improving the working efficiency and stability of the lifting mechanism. At the same time, the setting of the winding drive makes the retraction and release of the cables more precise and controllable, which is convenient for flexible adjustment according to the needs of different patients, further improving the safety and comfort of the nursing bed.

[0024] In the second aspect, the present application provides a patient rollover assisting method based on a nursing bed for cardiothoracic surgery rehabilitation, which adopts the following technical solution: A patient rollover assisting method based on a nursing bed for cardiothoracic surgery rehabilitation, characterized in that: The position of the fulcrum is determined according to the patient's current position and the direction in which the patient is about to roll over, and the bed slats closest to the fulcrum are temporarily fixed relative to the bed frame body through a locking mechanism, and the other bed slats are released from the temporary fixed state; The lifting mechanism is used to lift the bed slats at the edge of the side opposite to the patient's rollover direction. The bed slats are divided into two states: Several bed slats with the fulcrum facing the patient's rollover direction remain stationary; A number of bed slats with the fulcrum facing away from the patient's rollover direction move upward under the action of the lifting mechanism, and the relevant bed slats are distributed in a curve and fit with the patient's back to support the patient's back to tilt; Ultimately, stable support is achieved at all parts of the patient's back and the patient can eventually lie on his side.

[0025] By adopting the above technical solution, the patient's back is stably supported during the rollover process, avoiding the problem of the patient's back being in the air during the rollover process in the traditional method, and improving the safety and comfort of the rollover process. At the same time, the locking mechanism temporarily fixes the specific bed slats to ensure the stability of the fulcrum, prevent the patient from slipping during the rollover process, and further enhance the reliability of the rollover assistance.

[0026] A patient rollover assisting method based on a nursing bed for cardiothoracic surgery rehabilitation, characterized in that: In the initial state, the top surfaces of some bed slats are higher than the top surfaces of some rack slats; After the position of the fulcrum is determined according to the patient's current position and the direction in which the patient is about to roll over, the bed slat closest to the fulcrum is used as the position for supporting the patient during the actual rollover; The frame board drive is used to separate the frame board strips on both sides of the bed board strips closest to the fulcrum. During the separation process, the bed board strips closest to the fulcrum move downward relative to the frame board strips. Finally, the top surface height of the bed board strips closest to the fulcrum is less than the top surface height of the frame board strips and less than the top surface heights of the remaining bed board strips, so that a concave area is formed at the fulcrum. During the subsequent rollover, the patient's shoulder or the side edge of the body can rest against the concave area, making it less likely to slip.

[0027] By adopting the above technical solution, the frame board drives the frame board to separate the frame board strips on both sides of the bed board strips closest to the fulcrum, so that the bed board strips closest to the fulcrum move downward relative to the frame board strips, and finally form a concave area. The concave area can be used as a fulcrum during the patient's rollover, effectively preventing the patient from slipping during the rollover process, and improving the safety and stability of the rollover process. At the same time, this design can also flexibly adjust the fulcrum position according to the specific position and needs of different patients, further improving the applicability and comfort of the nursing bed.

[0028] In summary, the present application includes at least one of the following beneficial effects: 1. By dividing the bed board body into several bed board strips and connecting them with connecting belts to form a "flexible" bed board body, the bed board strips can better fit the patient's back during the lifting process, providing more stable support and preventing the patient from being injured due to the back hanging in the air during the rollover process; 2. Use the locking mechanism to temporarily fix specific bed slats to form a "depression" as a rollover fulcrum. The patient's shoulder or body side can rest against the "depression", effectively preventing slippage during rollover and improving the safety and stability of the rollover process; 3. By adjusting the spacing between the frame slats, the height difference between the top surfaces of the bed slats and the frame slats can be adjusted, thereby enhancing the breathability of the bed and reducing the risk of pressure sores caused by long-term bed rest. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application. In this state, the bed board body is in a horizontal state so that the patient can lie flat; Figure 2 This is a schematic diagram for illustrating the internal structure of the lifting mechanism in the embodiment of the present application; Figure 3 This is a structural schematic diagram for reflecting the connection relationship between the wire cup and the lifting box in the embodiment of the present application; Figure 4 This is a structural diagram for illustrating the connection relationship between the lifting cable and the bed slats in the embodiment of the present application; Figure 5 This is a structural schematic diagram for illustrating the connection between the bed board body and the frame board strips in the horizontal state in the embodiment of the present application; Figure 6 This is a structural schematic diagram for illustrating the connection between the bed board body and the frame board strips in the embodiment of the present application in a bent state; Figure 7 This is a structural schematic diagram for reflecting the positional relationship between the bed slats at the recessed position and the adjacent frame slats in the embodiment of the present application; Figure 8 This is a structural schematic diagram for reflecting the positional relationship between the bed slats at the recessed position and the adjacent frame slats in the embodiment of the present application; Fig. 9 This is a structural diagram for illustrating the connection relationship between the locking mechanism and the bed slats and the frame slats in the embodiment of the present application; Fig.10 This is a schematic diagram of the structure of an embodiment of the present application. In this state, the bed board body is in a bent state so that the patient can lie on his side.

[0030] In the figure: 1. Bed frame body; 11. Frame strips; 110. Slide; 12. Guardrail; 13. Roller; 14. Walking rod; 15. Walking drive; 16. Frame drive; 2. Bed board body; 21. Bed board strips; 22. Connecting belt; 23. Depression; 24. Hanging ring; 3. Lifting mechanism; 31. Lifting box; 310. Walking hole; 32. Wire cup; 33. Lifting cable; 34. Winding drive; 35. Lock; 36. Protective cover; 4. Locking mechanism; 41. Bed board locking rod; 410. Bed board locking hole; 42. Shelf board locking rod; 420. Shelf board locking hole; 51. Ball bearing. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.

[0032] The inventor of this application found that during the recovery period after cardiothoracic surgery, patients need to lie on their side intermittently to relieve back pressure, but the patient's back is easily in the air during the side-turning process of traditional nursing beds and cannot be effectively supported. To this end, this application mainly adopts the following technical solutions: The present application embodiment discloses a nursing bed for cardiothoracic surgery rehabilitation. Figure 1A nursing bed for rehabilitation of cardiothoracic surgery includes a bed frame body 1, which has a guardrail 12 around it and a roller 13 at the bottom to facilitate the turnover of patients. The bed frame body 1 has a plurality of frame slats 11, and the plurality of frame slats 11 are slidably connected to the bed frame body 1 through a slide groove 110, and the plurality of frame slats 11 form a stable support structure for supporting a bed board body 2. The bed board body 2 includes a plurality of bed board slats 21, and the plurality of bed board slats 21 are connected by a connecting belt 22, and the connecting belt 22 is a flexible cloth belt. When actually installed, the bed board slats 21 are located between two adjacent frame slats 11 to achieve a layout in which the bed board slats 21 are spaced apart from the frame slats 11. The frame slats 11 can be made of aluminum alloy material, and the bed board slats 21 can be made of high-strength plastic, both of which have good strength and lightness.

[0033] Reference Figure 1 and Figure 2 The head and foot of the bed frame body 1 are both provided with a lifting mechanism 3. Under normal conditions, a protective cover 36 is provided outside the lifting mechanism 3 to increase safety protection. The two lifting mechanisms 3 are used to cooperate with each other to pull a certain bed board slat 21 upward, thereby driving the entire bed board body 2 to bend, and then assisting the patient to roll over.

[0034] Reference Figure 2 and Figure 3 The lifting mechanism 3 includes a lifting box 31, a wire cup 32, a lifting cable 33 and a winding drive 34. The wire cup 32 is rotatably connected to the middle part of the lifting box 31 through a bearing. The lifting cable 33 is wound into the wire cup 32. The winding drive 34 is used to drive the wire cup 32 to rotate forward / reverse. The head and bed of the bed frame body 1 are also provided with a pair of walking rods 14 through the bracket and the bearing rotation. The lifting box 31 is provided with a pair of walking holes 310, and the two walking rods 14 are threadedly connected with the corresponding walking holes 310. The bed frame body 1 is also provided with a walking drive 15 for driving the two walking rods 14 to rotate. The walking drive 15 is a driving component composed of a motor, a gear and a chain. The walking drive 15 drives the walking rods 14 to rotate and thus realizes the movement of the lifting mechanism 3. Thereby, the traction position (force angle) can be adjusted during the lifting process, and the effective length of the lifting cable 33 can also be adjusted, so that a more sophisticated lifting scheme can be realized in conjunction with the control system. For example, during the lifting process, the lifting box 31 can be moved in the rollover direction while the lifting cable 33 is retracted to bend the bed board body 2 faster; the lifting box 31 can also be moved in the rollover direction without retracting the lifting cable 33 to slow down the bending speed of the bed board body 2; the lifting box 31 can also not move in the rollover direction but only retract the lifting cable 33 to reduce the bending angle of the bed board body 2, and so on.

[0035] Reference Figure 4The bottom of the lifting cable 33 has a lock buckle 35, and the ends of several bed slats 21 are provided with hanging rings 24. The lifting cable 33 and the bed slats 21 are detachably connected by hanging the lock buckle 35 in the hanging ring 24. In actual use, the lifting cable 33 can be selected to be connected to a specific bed slat 21 as needed to achieve flipping to the left or right or adjust the specific lifting position.

[0036] Reference Figure 5 and Figure 6 The cross-sections of several frame slats 11 are trapezoidal in shape, which is small at the top and large at the bottom, while the cross-section of the bed slats 21 is trapezoidal in shape, which is large at the top and small at the bottom. There is a gap between any two adjacent frame slats 11 for the bed slats 21 to be inserted, and the depth of the bed slats 21 inserted into the gap between two adjacent frame slats 11 can be adjusted as needed.

[0037] The specific scheme for achieving the adjustable function is as follows: the bed frame body 1 is symmetrically provided with a pair of slide grooves 110, and the ends of several frame slats 11 are inserted into the slide grooves 110 to achieve sliding connection. The bed frame body 1 is provided with a frame plate drive 16 corresponding to each frame slat 11, and the frame plate drive 16 is used to drive the frame slat 11 to slide relative to the bed frame plate body. In this embodiment, the frame plate drive 16 uses a motor and a screw to realize the movement of the frame slat 11. This method can make the movement of the frame slat 11 slower and the moving position more precise. In other embodiments, the frame plate drive 16 can be a structure such as a cylinder, a hydraulic cylinder, etc., and any driving mechanism that can realize linear reciprocating motion is acceptable.

[0038] Reference Figure 7 and Figure 8 In this embodiment, five bed slats 21 are provided, and six frame slats 11 are provided. Taking the case where the patient lies on his back in the middle position and occupies the width of the two middle bed slats 21 and three frame slats 11 as an example, when the patient needs to roll over, some frame slats 11 can be moved to increase the gap between the second and third frame slats 11 at the edge, so that the second bed slat 21 automatically moves downward under the action of gravity until it is again against the sides of the two frame slats 11 (the downward movement in this state is limited by the length of the connecting belt 22, so in actual application scenarios, the length of the connecting belt 22 can be customized according to actual needs). In this state, the top surface height of the descending bed slat 21 is lower than the top surface height of the frame slat 11 and lower than the top surface height of other bed slats 21, so that a "depression 23" is formed at the descending bed slat 21. Furthermore, the "depression 23" can be used as a fulcrum for the patient in the subsequent rollover process. After the patient's side is pushed into the formed "depression 23", the bed slat 21 body is lifted, so that the position of the patient near the fulcrum is not easily slipped during the subsequent auxiliary rollover process, further improving the stability during the auxiliary rollover process.

[0039] Reference Figure 8 The side wall where the bed slats 21 and the frame slats 11 are in contact is also provided with a ventilation groove to facilitate ventilation of the patient's back under normal conditions. In addition, in the initial state, the top surface height of the bed slats 21 is higher than the top surface height of the frame slats 11, that is, there is a height difference between the top surface of the frame slats 11 and the bedding, further improving the overall breathability. In addition, a ball 51 is provided inside the ventilation groove through a rotating shaft, and a portion of the ball 51 extends out of the ventilation groove and abuts against the bed slats 21 / frame slats 11, so that the side surfaces of the bed slats 21 and the frame slats 11 are not in direct contact. This structure reduces the friction when the bed slats 21 and the frame slats 11 are relatively displaced, which is conducive to extending the service life of the bed slats 21 and the frame slats 11. In addition, after reducing the friction, in actual use, the distance between the two frame slats 11 can be actively reduced to realize the upward movement of the bed slats 21, and the side surfaces of the two frame slats 11 are used to squeeze the side surfaces of the bed slats 21 to realize the upward movement of the bed slats 21, thereby adjusting the height difference between the top surface of the bed slats 21 and the top surface of the frame slats 11. The greater the height difference, the more sufficient the vertical ventilation space under the bedding, and thus the theoretical ventilation effect is smaller.

[0040] Reference Fig. 9 In addition, a locking mechanism 4 for temporarily fixing a bed board slat 21 is connected between the bed frame body 1 and the bed board slat 21. The locking mechanism 4 includes a connected bed board locking rod 41 and two frame board locking rods 42, and the bed board locking rod 41 and the frame board locking rod 42 can be made of stainless steel to ensure its corrosion resistance and strength. The bed board locking rod 41 is located between the two frame board locking rods 42 to form a "mountain" shape. Correspondingly, the end surface of the bed board slat 21 is provided with a bed board locking hole 410 for the bed board locking rod 41 to be inserted, and the end surface of the frame board slat 11 is provided with a frame board locking hole 420 for the frame board locking rod 42 to be inserted. Before the auxiliary rollover is performed, the position of the fulcrum can be determined according to the actual position of the patient, and the bed board slat 21 at the corresponding position is selected and moved downward to form a "depression 23", and then the locking mechanism 4 is inserted, so as to use the adjacent frame board slat 11 to limit the height of the bed board slat 21 serving as the fulcrum, so that when the entire bed board body 2 is lifted subsequently, the locked bed board slat 21 will not be lifted, thereby avoiding the problem that the entire bed board body 2 may be lifted due to an unexpected failure of the lifting mechanism 3, resulting in an unexpected situation for the patient, and the safety is higher.

[0041] The implementation principle of a nursing bed for rehabilitation of cardiothoracic surgery in an embodiment of the present application is as follows: the traditional bed board is divided into a plurality of frame slats 11 and bed slats 21, and the bed slats 21 are connected by connecting belts 22 to form a "flexible" bed board body 2. In this way, in the actual process of lifting the bed board body 2, the "flexible" bed board body 2 can fit the patient's back more closely, thereby providing stable support for the patient's back and preventing accidents. In addition, in the present application, a certain bed slat 21 can be moved downward to form a "depression 23" for the patient's side to support, which further improves the stability during the subsequent auxiliary rollover process and prevents slippage. Furthermore, the height difference between the top surfaces of a plurality of bed slats 21 and a plurality of frame slats 11 can be adjusted to actively adjust the air permeability of the bed body itself.

[0042] The present application also discloses a patient rollover assisting method based on a nursing bed for cardiothoracic surgery rehabilitation: The position of the fulcrum is determined according to the patient's current position and the direction in which the patient is about to roll over, and the bed slat 21 closest to the fulcrum is temporarily fixed relative to the bed frame body 1 through the locking mechanism 4, and the other bed slats 21 are released from the temporary fixed state; The lifting mechanism 3 is used to lift the bed slats 21 at the edge of the side opposite to the patient's rollover direction. The bed slats 21 are divided into two states: Several bed slats 21 with the fulcrum facing the patient's rollover direction remain stationary; A plurality of bed slats 21 with the fulcrum facing away from the patient's rollover direction move upward under the action of the lifting mechanism 3, and the relevant bed slats 21 are distributed in a curve and fit with the patient's back to support the patient's back to tilt; Ultimately, stable support is achieved at all parts of the patient's back and the patient can eventually lie on his side.

[0043] In addition, in the initial state, the top surfaces of the plurality of bed slats 21 are higher than the top surfaces of the plurality of rack slats 11; After the position of the fulcrum is determined according to the patient's current position and the direction in which the patient is about to roll over, the bed slat 21 closest to the fulcrum is used as the position for supporting the patient during the actual rollover process; The frame board drive 16 is used to separate the frame board strips 11 on both sides of the bed board strip 21 closest to the fulcrum. During the separation process, the bed board strip 21 closest to the fulcrum moves downward relative to the frame board strip 11. Finally, the top surface height of the bed board strip 21 closest to the fulcrum is less than the top surface height of the frame board strip 11 and less than the top surface height of the remaining bed board strips 21, so that a concave area is formed at the fulcrum. During the subsequent rollover, the patient's shoulder or the side edge of the body can rest against the concave area, making it less likely to slip.

[0044] The air permeability in daily state can also be actively adjusted: the distance between several frame slats 11 is reduced by using the frame drive 16, so that all the bed slats 21 are pushed up, thereby increasing the height difference between the top surface of the bed slats 21 and the top surface of the frame slats 11, thereby improving the air permeability of the bed itself, and thus appropriately reducing the frequency of the patient's need to roll over to achieve back ventilation.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A nursing bed for rehabilitation of cardiothoracic surgery, comprising a bed frame body (1) and a bed board body (2), characterized in that: The bed board body (2) comprises a plurality of bed board strips (21), wherein the plurality of bed board strips (21) are connected to each other via a connecting belt (22); a lifting mechanism (3) for pulling the bed board strips (21) upwards is connected between the bed frame body (1) and the bed board body; and a locking mechanism (4) for temporarily fixing the bed board strips (21) relative to the bed frame body (1) is connected between the bed frame body (1) and the bed board body (2).

2. A nursing bed for cardiothoracic surgery rehabilitation according to claim 1, characterized in that: The bed frame body (1) is located below the bed board body (2) and is further provided with a plurality of frame board strips (11). The cross section of the frame board strips (11) is a trapezoid with a small top and a large bottom. The cross section of the bed board strips (21) is a trapezoid with a large top and a small bottom. There is a gap between any two adjacent frame board strips (11) into which the bed board strips (21) can be inserted.

3. A nursing bed for cardiothoracic surgery rehabilitation according to claim 2, characterized in that: The locking mechanism (4) comprises a connected bed board locking rod (41) and a frame board locking rod (42); the bed board strip (21) is provided with a bed board locking hole (410) for the bed board locking rod (41) to be inserted into; and the frame board strip (11) is provided with a frame board locking hole (420) for the frame board locking rod (42) to be inserted into.

4. A nursing bed for cardiothoracic surgery rehabilitation according to claim 2, characterized in that: The bed frame body (1) is provided with a slide groove (110), and a plurality of the frame strips (11) are slidably connected to the slide groove (110). The bed frame body (1) is provided with a frame plate drive (16) for driving the plurality of frame strips (11) to slide.

5. A nursing bed for cardiothoracic surgery rehabilitation according to claim 2, characterized in that: The side walls of the bed slats (21) and the frame slats (11) that are in contact with each other are both provided with ventilation grooves (5).

6. A nursing bed for rehabilitation of cardiothoracic surgery according to claim 5, characterized in that: A ball (51) is rotatably arranged in the ventilation groove (5), and the ball (51) extends out of the ventilation groove (5).

7. The nursing bed for cardiothoracic surgery rehabilitation according to claim 1, characterized in that: The lifting mechanism (3) comprises a lifting box (31) and a lifting cable (33), wherein the lifting cable (33) is connected between the bed board body (2) and the lifting box (31), the bed frame body (1) is provided with a pair of walking rods (14), the lifting box (31) is provided with a pair of walking holes (310), the two walking rods (14) are both threadedly connected to the corresponding walking holes (310), and the bed frame body (1) is provided with a walking drive (15) for driving the two walking rods (14) to rotate.

8. The nursing bed for cardiothoracic surgery rehabilitation according to claim 7, characterized in that: The lifting box (31) is rotatably provided with a wire cup (32), the lifting cable (33) is wound around the wire cup (32), and the lifting box (31) is provided with a winding drive (34) for driving the wire cup (32) to rotate.

9. A patient rollover assisting method for a nursing bed for cardiothoracic surgery rehabilitation according to any one of claims 1 to 8, characterized in that: The position of the fulcrum is determined according to the patient's current position and the direction in which the patient is about to roll over, and the bed slats (21) closest to the fulcrum are temporarily fixed relative to the bed frame body (1) via a locking mechanism (4), and the other bed slats (21) are released from the temporary fixed state; The lifting mechanism (3) is used to lift the bed slats (21) at the edge of the side opposite to the patient's rollover direction, and the bed slats (21) are divided into two states: A plurality of bed slats (21) whose fulcrums face the patient's side-turning direction remain stationary; A plurality of bed slats (21) with the fulcrum facing away from the patient's side-turning direction move upward under the action of the lifting mechanism (3), and the relevant bed slats (21) are distributed in a curve and fit with the patient's back to support the patient's back to tilt; Ultimately, stable support is achieved at all parts of the patient's back and the patient can eventually lie on his side.

10. A patient rollover assisting method for a nursing bed for cardiothoracic surgery rehabilitation according to claim 4, characterized in that: In the initial state, the top surfaces of the plurality of bed slats (21) are higher than the top surfaces of the plurality of rack slats (11); After the position of the fulcrum is determined according to the patient's current position and the direction in which the patient is about to roll over, the bed slat (21) closest to the fulcrum is used as the position for supporting the patient during the actual rollover process; The frame strips (11) on both sides of the bed strip (21) closest to the fulcrum are separated by using the frame strip drive (16). During the separation process, the bed strip (21) closest to the fulcrum moves downward relative to the frame strip (11). Finally, the top surface height of the bed strip (21) closest to the fulcrum is less than the top surface height of the frame strip (11) and less than the top surface height of the remaining bed strips (21), so that a concave area is formed at the fulcrum. During the subsequent rollover, the patient's shoulder or the side edge of the body can rest against the concave area, making it less likely to slip.

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