Bone marrow aspiration patient bed sheet changing device

Abstract

This invention provides a bed sheet changing device for bone marrow aspiration patients, comprising a bed frame, a drive mechanism, and a lifting mechanism. The bed frame has an internal cavity, and a strip-shaped groove is formed at the top of the bed frame. A support belt is positioned at the top of the strip-shaped groove, and rods are positioned on both sides of the support belt. The two rods can respectively roll up both sides of the support belt to the underside of the support belt. Moving blocks are slidably installed on both sides of the support belt within the cavity. Each of the two moving blocks has a bearing plate on its top, and the two bearing plates are connected to their adjacent rods through connecting parts. The drive mechanism is used to drive the two moving blocks to move closer to or away from each other. The lifting mechanism is used to lift the support belt above the bed frame. This invention utilizes the drive mechanism in combination with the lifting mechanism to simultaneously raise or lower the support belt when unfolding or retracting it. This facilitates quick bed sheet changing for medical staff, eliminating the need for the patient to get out of bed, effectively reducing patient discomfort and the workload of medical staff.

Description

Technical Field

[0001] This invention relates to the field of clinical nursing technology, specifically to a bed sheet changing device for bone marrow aspiration patients. Background Technology

[0002] Bone marrow aspiration is a commonly used diagnostic technique for obtaining bone marrow fluid. The examination includes cytology, protozoology, and bacteriology. Bone marrow aspiration is suitable for the diagnosis, differential diagnosis, and treatment follow-up of various hematological diseases; unexplained increases or decreases in red blood cell, white blood cell, and platelet counts and morphological abnormalities; diagnosis and differential diagnosis of unexplained fever; and bone marrow culture and smear examination for parasites. Patients undergoing bone marrow aspiration need to rest in bed after the procedure to promote wound healing at the puncture site.

[0003] To protect patients' health, it is necessary to maintain the hygiene of the ward and change bed sheets and other ward supplies in a timely manner. Currently, changing bed sheets requires patients to get out of bed. However, patients who have undergone bone marrow aspiration have limited mobility and find it difficult to get out of bed independently. They need assistance from medical staff or family members. In addition, there are usually many beds with patients needing bed sheet changes, which consumes a lot of time in the process of getting patients out of bed. This results in low efficiency in changing bed sheets, increases patients' suffering, and increases the workload of medical staff. Summary of the Invention

[0004] In view of the shortcomings of existing technologies, this invention proposes a bed sheet changing device for bone marrow aspiration patients, which improves the efficiency of bed sheet changing while reducing patient pain and the workload of medical staff.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] The bone marrow aspiration patient bed sheet changing device provided by the present invention includes:

[0007] The bed has an internal cavity. The top of the bed has a strip-shaped groove extending to both ends. A support belt is provided on the top of the strip-shaped groove. Rods are provided on both sides of the support belt. The two rods can respectively roll up the two sides of the support belt to the underside of the support belt. Movable blocks are slidably installed on both sides of the support belt in the cavity. Each of the two movable blocks has a bearing plate on its top. The two bearing plates are respectively connected to their adjacent rods through connecting parts.

[0008] A drive mechanism for driving the two moving blocks closer to or further away from each other; and

[0009] A lifting mechanism is used to lift the support belt above the bed.

[0010] Furthermore, the drive mechanism includes a rotating seat, a screw, and a drive source. The rotating seat is installed inside the cavity, and the screw is rotatably mounted on the rotating seat. The screw is divided into two threaded sections with opposite directions of rotation, which are respectively connected to two moving blocks for transmission. One end of the screw passes through the bed body and is provided with a drive source.

[0011] Furthermore, the driving source is a rotating handle, which is connected to a screw.

[0012] Furthermore, the drive source is a motor, which is mounted on the bed and its motor shaft is axially connected to the screw.

[0013] Furthermore, the connecting part is provided at each end of the two support plates on the side close to each other. The connecting part includes a connecting block and a U-shaped stop. The U-shaped stop is connected to the end of the support plate through the connecting block. The two ends of the U-shaped stop extend upward and the end of the rod is movably disposed in the U-shaped stop.

[0014] Furthermore, one lifting mechanism is provided at each end of the bed. The lifting mechanism includes a frame and a guide plate. The frame is installed at the end of the bed. The guide plate is provided with a guide groove. The two guide plates are symmetrically arranged on the frame so that the ends of the two guide grooves that are away from each other are inclined upwards. The ends of the two rods are respectively movably inserted into the two guide grooves.

[0015] Furthermore, each guide plate is provided with a rack on the upper side of the guide groove, and each rod end is provided with a gear that meshes with the rack.

[0016] Furthermore, it also includes a fixing mechanism, which includes a rotating plate and a card holder. The two rotating plates are rotatably installed on the top sides of the bed. The two ends of the rotating plate are provided with card posts, and the top of the card holder is provided with a card slot. Multiple card holders are provided on the top of the bed corresponding to each card post. The rotating plate has fixing teeth arranged linearly on the side near the card holder.

[0017] Furthermore, a strip pad is adhered to the top surface of the support belt.

[0018] As can be seen from the above technical solution, the bone marrow aspiration patient bed sheet changing device provided by the present invention utilizes a rollable and unfoldable support belt, which reduces the space loss on the top surface of the bed. After the bed sheet is laid, only the rolled-up support belt is located above the bed sheet, which can maintain the patient's comfort and enable the bed sheet to be changed without the patient getting out of bed. When the support plate moves with the moving block, the bed sheet is spaced between the support plate and the patient's body, which can avoid friction between the support plate and the patient's body when the support plate moves, and prevent the patient from getting abrasions. The fixing mechanism can effectively prevent the bed sheet from shifting. The driving mechanism can drive the two moving blocks to move closer or further away at the same time, which improves the efficiency of bed sheet changing. Combined with the lifting mechanism, when the support belt is unfolded or rolled up, the support belt can be driven to rise or fall at the same time, which further improves the work efficiency and helps medical staff to quickly change the patient's bed sheet. At the same time, the patient does not need to get out of bed, but only needs to move horizontally, which can effectively reduce the patient's pain and reduce the workload of medical staff. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of one embodiment of the bone marrow aspiration patient bed sheet changing device of the present invention;

[0021] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 3 This is a front view schematic diagram of an embodiment of the bone marrow aspiration patient bed sheet changing device of the present invention;

[0023] Figure 4 This is a schematic diagram of the main structure of one embodiment of the bone marrow aspiration patient bed sheet changing device of the present invention, after concealing the lifting mechanism;

[0024] Figure 5 This is a cross-sectional view of a front view of an embodiment of the bone marrow aspiration patient bed sheet changing device of the present invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the fixing mechanism in one embodiment of the bone marrow aspiration patient bed sheet changing device of the present invention.

[0026] Figure label:

[0027] Bed body 1, cavity 11, strip groove 12, support belt 13, strip pad 131, rod 14, gear 141, moving block 15, bearing plate 16, connecting part 17, connecting block 171, U-shaped stop 172;

[0028] Drive mechanism 2, rotating seat 21, screw 22, drive source 23;

[0029] Lifting mechanism 3, frame 31, guide plate 32, guide groove 321, rack 322;

[0030] Fixed mechanism 4, rotating plate 41, locking post 411, fixing tooth 412, locking seat 42, locking groove 421. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention; therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0034] like Figure 1-6 As shown, the bone marrow aspiration patient bed sheet changing device provided in this embodiment includes a bed body 1, a drive mechanism 2, and a lifting mechanism 3.

[0035] Please see Figures 1-5The bed body 1 has an internal cavity 11. A strip-shaped groove 12 extending to both ends is formed at the top of the bed body 1, extending through both ends and sinking downwards. A support strap 13, made of flexible fabric, is provided at the top of the strip-shaped groove 12 for supporting the patient. Rods 14 are provided on both sides of the support strap 13, and the two rods 14 can respectively roll up both sides of the support strap 13 to the underside of the support strap 13, specifically by rolling the rods 14. Movable blocks 15 are slidably installed on both sides of the support belt 13 inside the cavity 11. The movable blocks 15 are slidably connected to the inside of the cavity 11 via slide rails and grooves. The two movable blocks 15 can move closer to or further away from each other. Each of the two movable blocks 15 is provided with a support plate 16 on its top. When the movable blocks 15 move so that the support plate 16 is in the position of the strip groove 12, the support plate 16 can serve as a platform to support the patient's body. The two support plates 16 are respectively connected to their adjacent rods 14 via connecting parts 17 to provide support for the support belt 13, so that the support belt 13 provides support for the patient in the gap between the two support plates 16. It should be noted that the rods 14 and the connecting parts 17 are movably connected so that the support belt 13 can be lifted.

[0036] like Figures 1-4 As shown, a connecting part 17 is provided at each end of the two support plates 16 on the side close to each other. The connecting part 17 includes a connecting block 171 and a U-shaped stop 172. The U-shaped stop 172 is connected to the end of the support plate 16 through the connecting block 171. The two ends of the U-shaped stop 172 extend upward and the end of the rod 14 is movably disposed in the U-shaped stop 172. The end of the rod 14 can be placed at the bottom of the U-shaped stop 172 or can move up and down in the U-shaped stop 172. When the two moving blocks 15 approach or move away from each other, the rod surfaces at both ends of the U-shaped stop 172 will push and pull the rod 14 to move, thereby driving the support belt 13 to rewind or unwind.

[0037] In practical use, first lift the support belt 13, place the sheet on top of the bed frame 1, and insert the sheet above the strip groove 12 into the bottom of the strip groove 12. Lower the support belt 13 so that the entire support belt 13 is above the sheet, and bring the two moving blocks 15 together to clamp the sheet against the support belt 13. Of course, to improve patient comfort, a soft mattress can also be added.

[0038] It is important to note that the top surface height of the support belt 13 should be approximately equal to the top surface height of the support plate 16 after the bed sheet is placed, in order to reduce the feeling of a chasm and improve patient comfort. Preferably, a strip pad 131 is adhered to the top surface of the support belt 13. The strip pad 131 is specifically adhered to the portion of the support belt 13 exposed outside the strip groove 12, and can be attached using Velcro. This improves patient comfort when lying down and facilitates hygienic protection of the portion of the support belt 13 exposed outside the strip groove 12. The strip pad 131 is removable and can be replaced promptly when it becomes soiled.

[0039] It should be noted that the specific positions of the strip groove 12 and the support belt 13 can be selected in the middle of the top surface of the bed 1 or on a side biased towards the top surface of the bed 1. The specific positions can be set according to actual use needs. Patients can also choose to lie on the top surface of the bed 1 or on the support belt 13 as needed. The present invention does not limit this.

[0040] Please see Figure 1 as well as Figures 3-6 To facilitate securing the sides of the bed sheet and prevent it from shifting due to patient movement, one embodiment includes a fixing mechanism 4. The fixing mechanism 4 includes a rotating plate 41 and a retainer 42. Two rotating plates 41 are rotatably mounted on the top sides of the bed frame 1. Each end of the rotating plate 41 has a retaining post 411, and the retainer 42 has a retaining groove 421 on its top. Multiple retainers 42 are positioned on the top of the bed frame 1 corresponding to each retaining post 411. Rotating the rotating plate 41 towards the inside of the bed frame 1 allows the retaining post 411 to engage with the corresponding retaining groove 421, leaving a small gap between the rotating plate 41 and the top surface of the bed frame 1 to hold the bed sheet. The retainer 42 is made of elastic plastic, and the retaining groove 421 can deform slightly under force to facilitate the retaining post 411 engaging. Furthermore, the rotating plate 41 has linearly arranged fixing teeth 412 on the side near the retainer 42 to further enhance the fixing ability of the rotating plate 41 on the bed sheet.

[0041] Please see Figure 5 The drive mechanism 2 is used to drive the two moving blocks 15 to move closer or further away from each other. In one embodiment, the drive mechanism 2 includes a rotating seat 21, a screw 22, and a drive source 23. The rotating seat 21 is installed inside the cavity 11, and the screw 22 is rotatably mounted on the rotating seat 21. The screw 22 is divided into two threaded sections with opposite directions of rotation, which are respectively connected to the two moving blocks 15 for transmission. One end of the screw 22 passes through the outside of the bed 1 and is provided with the drive source 23. By rotating the screw 22, the two moving blocks 15 can be moved closer or further away synchronously, improving the adjustment efficiency. When the two moving blocks 15 move closer or further away from each other, the rods 14 on both sides of the support belt 13 will also be pulled, causing the support belt 13 to wind up or unwind.

[0042] Specifically, the drive source 23 is a rotary handle, which is connected to the screw 22. Medical staff can manually rotate the rotary handle for adjustment. Of course, in order to reduce the burden on medical staff and further improve adjustment efficiency, preferably, the drive source 23 is a motor (not shown in the figure), which is mounted on the bed 1 and its motor shaft is axially connected to the screw 22.

[0043] Please see Figures 1-3 The lifting mechanism 3 is used to lift the support belt 13 above the bed body 1 so as to lift the patient and change the bed sheet. In one embodiment, one lifting mechanism 3 is provided at each end of the bed body 1. The lifting mechanism 3 includes a frame 31 and a guide plate 32. The frame 31 is installed at the end of the bed body 1. The guide plate 32 is provided with a guide groove 321. The guide groove 321 is strip-shaped and its width is adapted to the diameter of the rod 14. The two guide plates 32 are symmetrically arranged on the frame 31 so that the ends of the two guide grooves 321 that are away from each other are inclined upwards. The ends of the two rods 14 are respectively movably inserted into the two guide grooves 321.

[0044] It should be noted that when the two moving blocks 15 approach each other, the connecting part 17 will push the two rods 14 closer together and retract the support belt 13, so that the support belt 13 is located within the guide groove 321, and both rods 14 are located at the lower position of the U-shaped stop 172 and the guide groove 321. When the two moving blocks 15 move away from each other, the connecting part 17 will pull the two rods 14 away from each other and unfold the support belt 13, so that the two rods 14 rise continuously with the guide groove 321, eventually placing the support belt 13 above the bed frame 1 for changing the bed sheet.

[0045] Furthermore, each guide plate 32 is provided with a rack 322 on the upper side of the guide groove 321, and each rod 14 is provided with a gear 141 at its end that meshes with the rack 322. Through the transmission action of the gear 141 and the rack 322, the rod 14 will rotate when it moves with the moving block 15. This allows the rod 14 to rotate and unfold the support belt 13 when the two moving blocks 15 are far apart, and the rod 14 can also rotate and rewind the support belt 13 when the two moving blocks 15 are close to each other. This helps to improve the stability of the rewinding and unfolding of the support belt 13 and prevents the support belt 13 from collapsing due to the patient's excessive weight.

[0046] The bone marrow aspiration patient bed sheet changing device provided by the present invention is used as follows: When bed sheet changing is required, the patient is moved above the support belt 13, the drive source 23 is activated to drive the screw 22 to rotate, causing the two moving blocks 171 to move away from each other, and the connecting part 17 drives the rod 14 to move, thereby pulling the support belt 13 to unfold, so that the support belt 13 lifts the patient's body. As the support belt 13 unfolds, the rod 14 continuously rises along the guide groove 321, and the support belt 13 also continuously lifts the patient's body up until the support belt 13 completely lifts the patient. The bed sheet can only be changed after the bed is fully raised above the top surface of the bed frame 1. After the bed sheet is laid out, the drive source 23 is restarted to drive the screw to rotate, so that the two moving blocks 171 move closer to each other and drive the rod 14 to move through the connecting part 17 to pull the support belt 13 to roll up. The support belt 13 lowers the patient's body. As the support belt 13 rolls up, the rod 14 continues to descend along the guide groove 321, and the support belt 13 also continuously lowers the patient's body until the support belt 13 is completely rolled up and placed in the strip groove 12, and the bed sheet change is completed.

[0047] This invention utilizes a retractable support belt 13, reducing space loss on the top surface of the bed 1. After the bed sheet is laid, only the retracted support belt 13 is located above the sheet, maintaining patient comfort and allowing for sheet changes without the patient getting out of bed. When the support plate 16 moves with the moving block 15, the sheet separates the support plate 16 from the patient's body, preventing friction and abrasions. The fixing mechanism 4 effectively prevents the sheet from shifting. The driving mechanism 2 drives the two moving blocks 15 to move closer or further away simultaneously, improving sheet changing efficiency. Combined with the lifting mechanism 3, the support belt 13 can be raised or lowered simultaneously during unfolding or retracting operations, further improving work efficiency. This helps medical staff quickly change patient sheets without the patient needing to get out of bed, requiring only a slight lateral movement, effectively reducing patient discomfort and the workload of medical staff.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A bone marrow puncture patient sheet changing device, characterized by, include: The bed has an internal cavity. The top of the bed has a strip-shaped groove extending to both ends. A support belt is provided on the top of the strip-shaped groove. Rods are provided on both sides of the support belt. The two rods can respectively roll up the two sides of the support belt to the underside of the support belt. Movable blocks are slidably installed on both sides of the support belt in the cavity. Each of the two movable blocks has a bearing plate on its top. The two bearing plates are respectively connected to their adjacent rods through connecting parts. A drive mechanism is used to drive the two moving blocks closer to or further away from each other; A lifting mechanism is used to lift the support belt above the bed. The connecting portion is provided at each end of one side of the two bearing plates closest to each other. The connecting portion includes a connecting block and a U-shaped stop. The U-shaped stop is connected to the end of the bearing plate via the connecting block. Both ends of the U-shaped stop extend upwards, and the end of the rod is movably disposed within the U-shaped stop. One lifting mechanism is provided at each end of the bed. The lifting mechanism includes a frame and a guide plate. The frame is installed at the end of the bed. The guide plate has a guide groove. The two guide plates are symmetrically arranged on the frame so that the ends of the two guide grooves that are away from each other are inclined upward. The ends of the two rods are respectively movably inserted into the two guide grooves.

2. The bone penetrating patient sheet changing device of claim 1, wherein, The drive mechanism includes a rotating seat, a screw, and a drive source. The rotating seat is installed inside the cavity, and the screw is rotatably mounted on the rotating seat. The screw is divided into two threaded sections with opposite directions of rotation, which are respectively connected to two moving blocks. One end of the screw passes through the bed body and is provided with a drive source.

3. The bone penetrating patient sheet changing device of claim 2, wherein, The driving source is a rotating handle, which is connected to a screw.

4. The bone penetrating patient sheet changing device of claim 2, wherein, The drive source is a motor, which is mounted on the bed and its motor shaft is axially connected to the screw.

5. The bone penetrating patient sheet changing device of claim 1, wherein, Each guide plate is provided with a rack on the upper side of the guide groove, and each rod end is provided with a gear that meshes with the rack.

6. The bone penetrating patient sheet changing device of claim 1, wherein, It also includes a fixing mechanism, which includes a rotating plate and a card holder. The two rotating plates are rotatably installed on the top sides of the bed. The two ends of the rotating plate are provided with card posts. The top of the card holder is provided with a card slot. Multiple card holders are provided on the top of the bed corresponding to each card post. The rotating plate is provided with fixing teeth arranged linearly on the side near the card holder.

7. The bone penetrating patient sheet changing device of claim 1, wherein, A strip pad is adhered to the top surface of the support belt.

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