Conveniently pass through bed and can weigh lifting stretcher bed

Abstract

The application discloses a convenient over-bed weighing lifting stretcher bed and belongs to the technical field of medical devices. The convenient over-bed weighing lifting stretcher bed comprises a stretcher bed body, wherein the stretcher bed body comprises a bed base and a bed plate; an over-bed moving assembly, a horizontal conveying belt and a conveying transformation assembly are arranged on the stretcher bed body; the over-bed moving assembly is arranged on the bed plate; the conveying transformation assembly is arranged on the over-bed moving assembly; the horizontal conveying belt is sleeved on the conveying transformation assembly; a head placing seat, a head height adjusting assembly, a head angle adjusting assembly and a head limiting assembly are arranged on the over-bed moving assembly; the head placing seat is slidably connected to the over-bed moving assembly; the head height adjusting assembly is arranged in the head placing seat; the head angle adjusting assembly is arranged in the head height adjusting assembly; and the head limiting assembly is arranged on the head angle adjusting assembly. The application can keep the stability of the head and neck of a patient when the patient is over-bedded.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a stretcher bed which is convenient for bed transfer and can be weighed and lifted. Background Art

[0002] Intravenous thrombolysis for acute ischemic stroke refers to a treatment method in which thrombolytic drugs are infused intravenously within a certain time window after the onset of acute ischemic stroke to dissolve the blood clots blocking the cerebral blood vessels, restore cerebral blood flow, save the dying brain tissue, and thus improve the patient's neurological dysfunction symptoms.

[0003] The time window for intravenous thrombolysis in acute ischemic stroke in neurology department is within 4.5 hours. In order to shorten the thrombolysis time window, accurately calculate the drug dosage, and reduce the inconvenience caused to patients and their families by moving patients back and forth, this stretcher is designed.

[0004] Most of the stretchers currently used in clinical practice do not have the function of measuring weight. However, in emergency intravenous thrombolysis for ischemic stroke in neurology, the dosage of drugs is first calculated according to body weight and then used.

[0005] During transport for patients undergoing intravenous thrombolysis for acute ischemic stroke, maintaining head and neck stability is crucial. Blood circulation in acute ischemic stroke patients is already poor, and head and neck movement can cause distortion and compression of the carotid and vertebral arteries in the neck. Distortion of these two vital blood vessels can obstruct blood flow, preventing adequate blood flow to the brain. This further decrease in blood supply exacerbates the already ischemic and hypoxic brain tissue, potentially leading to further damage or even death of brain cells due to nutrient deprivation. This can severely impact the effectiveness of subsequent treatment and increase the risk of disability or death. As noted in the document, excessive head movement can cause distortion of the carotid arteries, potentially reducing blood flow from a normal 30-50 cm / s to 10-20 cm / s. Such a significant decrease in blood flow has a significant negative impact on brain blood flow.

[0006] Causes abnormal blood pressure fluctuations: Shaking the head and neck stimulates the body's pressure receptors, which in turn causes blood pressure fluctuations. For patients with acute ischemic stroke, unstable blood pressure is extremely harmful. A sudden increase in blood pressure can cause already damaged cerebral blood vessels to rupture and bleed, rapidly worsening the condition. A sudden drop in blood pressure further reduces brain perfusion and expands the area of ​​cerebral infarction. Studies have shown that during transport, patients with significant head shaking may experience blood pressure fluctuations exceeding ±20 mmHg for systolic pressure and ±10 mmHg for diastolic pressure. These large fluctuations seriously threaten the patient's life and health.

[0007] During the bed transfer process, the hospital bed and the stretcher are at the same horizontal plane. When the patient moves from the hospital bed to the stretcher or from the stretcher to the hospital bed, the patient will be located on the horizontal moving end of the stretcher. When moving relative to each other, there will be a drop to facilitate the transfer of the patient's position. Due to the existence of the drop between the two, the patient's neck and head will shake during the transfer process, affecting the safety of the patient's transfer.

[0008] Therefore, the device provides a stretcher bed which is convenient for use and can be weighed and lifted. Summary of the Invention

[0009] The embodiment of the present invention provides a stretcher bed that is easy to move around and can be weighed and lifted to solve the above-mentioned technical problems.

[0010] The embodiment of the present invention adopts the following technical solution: a stretcher bed that is easy to pass through and can be weighed and lifted, comprising a stretcher bed body, the stretcher bed body comprising a bed base and a bed board, the stretcher bed body being provided with a bed passing moving component, a horizontal conveyor belt and a conveying conversion component, the bed passing moving component being arranged on the bed board, the conveying conversion component being arranged on the bed passing moving component and being rotatably connected with the bed passing moving component, the horizontal conveyor belt being sleeved on the conveying conversion component, the bed passing moving component being provided with a head placement seat, a head height adjustment component, a head angle adjustment component and a head limiting component, the head placement seat being slidably connected to the bed passing moving component, the horizontal conveyor belt being able to drive the head placement seat to move on the bed passing moving component, the head height adjustment component being arranged in the head placement seat, the head angle adjustment component being arranged in the head height adjustment component, the head limiting component being arranged on the head angle adjustment component, and the head limiting component being slidably matched with the head angle adjustment component.

[0011] Furthermore, the bed moving assembly includes a moving frame and two horizontal electric slides, the two horizontal electric slides are symmetrically arranged at one end of the bed board, the two ends of the moving frame are respectively connected to the moving ends of the two horizontal electric slides, one side of the moving frame is provided with two slide grooves, the head placement seat is provided with two sliders, the head placement seat is slidably connected in the two slide grooves through the two sliders, and horizontally connected corrugated soft plates are provided on both sides of the head placement seat.

[0012] Furthermore, the conveying conversion assembly includes a conveying motor, two conveying rollers, two conversion rollers and two conversion parts. The two conveying rollers are symmetrically connected to the mobile frame in an upper and lower rotation manner. The mobile frame is provided with two conversion grooves. The conveying motor is located in the mobile frame and is transmission-connected to one of the conveying rollers. The two conversion parts are respectively arranged in the two conversion grooves. Each of the conversion parts includes a conversion motor and a conversion plate. The conversion motor is located in the conversion groove. The conversion plate is connected to the main shaft of the conversion motor. The two ends of the two conversion rollers are respectively rotatably connected to the two conversion plates. The horizontal conveyor belt is sleeved on the two conveying rollers and the two conversion rollers. The horizontal conveyor belt is connected to the head placement seat.

[0013] Furthermore, a rotating box is provided in the head placement seat, and the rotating box is rotatably connected to the head placement seat. A rotating motor is provided on the side wall of the head placement seat, which is transmission-connected to the rotating box. The rotating motor is located on the mobile frame, and the mobile frame is provided with a sliding groove for the rotating motor to slide.

[0014] Furthermore, the head height adjustment assembly includes a lifting plate, a lifting motor, a cross plate, a first adjustment plate, a second adjustment plate and four limit rods. The cross plate is horizontally arranged in a rotating box, the lifting motor is located on the cross plate, the first adjustment plate is connected to the main shaft of the lifting motor, and the four limit rods are respectively arranged at the four corners of the lifting plate. The limit rods are hinged to the lifting plate, and a limit seat that slides with the limit rod is provided in the rotating box. The two ends of the second adjustment plate are respectively hinged to the bottom of the first adjustment plate and the lifting plate.

[0015] Furthermore, the head angle adjustment assembly includes a mounting seat, an adjustment motor, an adjustment block, an adjustment base, an adjustment screw and two rotating plates, the mounting seat is connected to the top of the lifting plate, the adjustment base is arranged in the mounting seat, the adjustment screw is rotatably connected to the adjustment base, the adjustment motor is located on the adjustment base and the adjustment motor is transmission-connected to the adjustment screw, the adjustment base is provided with two symmetrically arranged sliding rods, the adjustment block slides with the two sliding rods, the adjustment block is threadedly connected to the adjustment screw, the mounting seat is provided with a head and neck cushion, the head and neck cushions are hinged to the mounting seat, one end of the two rotating plates is rotatably connected to both sides of the adjustment block, and the other end of the two rotating plates is hinged to the bottom of the head and neck cushion.

[0016] Furthermore, the head limiting assembly includes a movable cushion, a movable motor, a movable gear and a movable gear plate frame. A movable groove is provided at one end of the top of the mounting seat. The movable motor is located in the mounting seat. The movable gear is connected to the main shaft of the movable motor. The movable gear plate frame is vertically arranged at the bottom of the movable cushion. The movable gear is engaged with the movable gear plate frame, and the movable cushion is slidably connected in the movable groove.

[0017] Furthermore, the head limit assembly also includes a fixed plate, an upper locking electric cylinder and a lower locking electric cylinder. The fixed plate is located in the mounting seat and is located beside the movable groove. The upper locking electric cylinder and the lower locking electric cylinder are respectively provided with an upper locking rod and a lower locking rod. The upper locking electric cylinder and the lower locking electric cylinder are symmetrically arranged on the fixed plate, and the movable gear plate frame is provided with a socket hole for connecting with the upper locking rod or the lower locking rod.

[0018] Furthermore, a body weight sensor is provided on the horizontal conveyor belt.

[0019] Furthermore, the bed base is provided with two symmetrically arranged lifting electric cylinders, the bed board is connected to the telescopic ends of the two lifting electric cylinders, and the outer sides of the lifting electric cylinders are provided with corrugated protective sleeves.

[0020] The at least one technical solution adopted in the embodiment of the present invention can achieve the following beneficial effects:

[0021] First, when the head and neck of the patient are raised, the lifting motor drives the first adjustment plate to rotate, thereby driving the second adjustment plate to rotate on the lifting plate, so that the lifting plate moves up and down on the limit seat through four limit rods, thereby driving the position of the lifting plate to move on the head placement seat, so that the patient's neck or head position is lifted upward during the process of crossing the bed, so that the head or neck position is kept flush with the patient's torso position without shaking; keeping the patient's head and neck position flush with the torso without shaking has the following benefits: improving cerebral blood circulation; keeping the airway unobstructed; reducing neck pressure; and reducing intracranial pressure.

[0022] Secondly, in the present invention, when the patient is located on the horizontal conveyor belt, the rotating motor will drive the rotating box to rotate on the head placement seat, and tilt the position of the rotating box toward the patient's head side, so that the head and neck cushions can be moved to the patient's head and neck position, preventing the patient's head or neck from shaking during the bed transfer process, thereby preventing subsequent complications; and when the patient is located on the bed and transferred to the horizontal conveyor belt, the head and neck cushions can also limit and fix the position of the patient's neck and head; and when the horizontal conveyor belt moves horizontally, the rotating motor will drive the rotating box to rotate to a horizontal position, so that the temperature of the patient's head and neck can be maintained; limiting and fixing the position of the patient's neck and head has the following advantages: protecting blood vessels; avoiding secondary injuries; maintaining normal intracranial pressure; and facilitating operation and transfer.

[0023] Thirdly, when the present invention adjusts the angular position of one end of the head and neck cushion, the adjustment motor drives the adjustment screw to rotate on the adjustment base, thereby driving the adjustment block to move horizontally on the adjustment screw and the two sliding rods, and the position movement of the adjustment block will drive the two rotating plates to rotate, thereby driving the head and neck cushion to rotate on the mounting seat, which will cause one end of the head and neck cushion to tilt upward and rotate. During the process of transferring the patient to the bed, it is ensured that the patient's head and neck position remains stable and motionless, compensates for the difference between the horizontal conveyor belt and the bed, and keeps the patient's neck and head position flush with the body; prevents the neck blood vessels and nerves from being excessively compressed, ensures the normal flow of blood in the neck blood vessels, avoids the impact of blood supply to the brain due to blood vessel compression, and also reduces the discomfort or damage caused by nerve compression; prevents the tongue root from falling back and blocking the airway, ensures the patency of the respiratory tract, maintains normal gas exchange, provides sufficient oxygen to the brain, and avoids aggravation of brain damage due to hypoxia. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 is a side view of the present invention;

[0027] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the stretcher bed body in the present invention;

[0028] Figure 4It is a schematic diagram of the three-dimensional structure of the bed moving component and the conveying conversion component in the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0030] Figure 6 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0031] Figure 7 Schematic diagram of the three-dimensional structure of the head height adjustment component of the present invention;

[0032] Figure 8 Schematic diagram of the three-dimensional structure of the head angle adjustment component in the present invention Figure 1 ;

[0033] Figure 9 Schematic diagram of the three-dimensional structure of the head angle adjustment component in the present invention Figure 2 ;

[0034] Figure 10 for Figure 9 Enlarged view of point B in the middle;

[0035] Figure 11 Schematic diagram of the three-dimensional structure of the head angle adjustment component in the present invention Figure 3 ;

[0036] Figure 12 for Figure 11 Enlarged view of point C in the middle;

[0037] Figure 13 The state of the horizontal conveyor belt in the present invention Figure 1 ;

[0038] Figure 14 The state of the horizontal conveyor belt in the present invention Figure 2 ;

[0039] Reference numerals

[0040] Stretcher bed body 1, bed base 11, bed board 12, lifting electric cylinder 13, corrugated protective cover 14, bed moving component 2, moving frame 21, horizontal electric slide 22, slide 23, slide 24, horizontal conveyor belt 3, conveying conversion component 4, conveying motor 41, conveying roller 42, conversion roller 43, conversion motor 44, conversion plate 45, head placement seat 5, slider 51, rotating box 52, rotating motor 53, head height adjustment component 6, lifting plate 61, lifting motor 62, cross plate 63, first adjustment Whole plate 64, second adjustment plate 65, limit rod 66, head angle adjustment assembly 7, mounting seat 71, adjustment motor 72, adjustment block 73, adjustment base 74, adjustment screw 75, rotating plate 76, head and neck placement cushion 77, sliding rod 78, head limit assembly 8, movable gear plate frame 80, movable cushion 81, movable motor 82, movable gear 83, fixed plate 84, upper locking cylinder 85, lower locking cylinder 86, upper locking rod 87, lower locking rod 88, plug hole 89, corrugated soft plate 9. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0043] An embodiment of the present invention provides a stretcher bed that is convenient for passing over the bed and can be weighed and lifted, comprising a stretcher bed body 1, the stretcher bed body 1 comprising a bed base 11 and a bed board 12, the stretcher bed body 1 being provided with a bed passing moving component 2, a horizontal conveyor belt 3 and a conveying conversion component 4, the bed passing moving component 2 being arranged on the bed board 12, the conveying conversion component 4 being arranged on the bed passing moving component 2 and being rotatably connected with the bed passing moving component 2, the horizontal conveyor belt 3 being sleeved on the conveying conversion component 4, the bed passing moving component 2 being provided with a head placement seat 5, a head height adjustment component 6, a head angle adjustment component 7 and a head limiting component 8, the head placement seat 5 being slidably connected to the bed passing moving component 2, the horizontal conveyor belt 3 being able to drive the head placement seat 5 to move on the bed passing moving component 2, the head height adjustment component 6 being arranged in the head placement seat 5, the head angle adjustment component 7 being arranged in the head height adjustment component 6, the head limiting component 8 being arranged on the head angle adjustment component 7, and the head limiting component 8 being slidably matched with the head angle adjustment component 7.

[0044] Preferably, the bed moving assembly 2 includes a moving frame 21 and two horizontal electric slides 22. The two horizontal electric slides 22 are symmetrically arranged at one end of the bed board 12. The two ends of the moving frame 21 are respectively connected to the moving ends of the two horizontal electric slides 22. Two slide grooves 23 are provided on one side of the moving frame 21. Two sliders 51 are provided on the head placement seat 5. The head placement seat 5 is slidably connected in the two slide grooves 23 through the two sliders 51. Horizontally connected corrugated soft plates 9 are provided on both sides of the head placement seat 5.

[0045] When the head rest seat 5 moves with the horizontal conveyor belt 3, the corrugated soft plate 9 can be squeezed and stretched to prevent the patient's hair or other objects from being squeezed and damaged when the head rest seat 5 moves.

[0046] During the process of transferring the patient to the bed, when the patient is on the horizontal conveyor belt 3, the two horizontal electric slides 22 work simultaneously to drive the position of the moving frame 21 to move from the stretcher bed body 1 to the bed;

[0047] When the patient is on the bed, the two horizontal electric slides 22 work simultaneously to drive the movable frame 21 to move from the bed to the stretcher body 1;

[0048] During the process of moving the patient across the bed, the horizontal conveyor belt 3 can assist in the movement of the patient across the bed.

[0049] Preferably, the conveying conversion assembly 4 includes a conveying motor 41, two conveying rollers 42, two conversion rollers 43 and two conversion pieces. The two conveying rollers 42 are symmetrically connected to the mobile frame 21 in an upper and lower rotation manner. The mobile frame 21 is provided with two conversion grooves. The conveying motor 41 is located in the mobile frame 21 and is transmission-connected to one of the conveying rollers 42. The two conversion pieces are respectively arranged in the two conversion grooves. Each of the conversion pieces includes a conversion motor 44 and a conversion plate 45. The conversion motor 44 is located in the conversion groove. The conversion plate 45 is connected to the main shaft of the conversion motor 44. The two ends of the two conversion rollers 43 are respectively rotatably connected to the two conversion plates 45. The horizontal conveyor belt 3 is sleeved on the two conveying rollers 42 and the two conversion rollers 43. The horizontal conveyor belt 3 is connected to the head placement seat 5.

[0050] When the patient is on the horizontal conveyor belt 3, the two transition rollers 43 are in a vertically symmetrical state (refer to Figure 13 As shown), the conveying motor 41 drives the conveying roller 42 to rotate on the movable frame 21, which drives the horizontal conveyor belt 3 to rotate on the two conveyor rollers 42 and the two transfer rollers 43. The horizontal conveyor belt 3 rotates to move the patient horizontally from the stretcher bed body 1 to the bed;

[0051] When the patient is on the bed, the conversion motor 44 drives the conversion plate 45 to rotate, and the conversion rollers 43 (refer to Figure 13 As shown) rotates to the horizontal symmetrical transition roller 43 (refer to Figure 14 The horizontal conveyor belt 3 in the flat state can form a smoother transition between the patient and the bed, thereby reducing the possibility of the patient getting stuck, tripping or sliding off the horizontal conveyor belt 3 during the movement, which helps to ensure the safety of the patient, especially for ischemic stroke patients with more serious conditions and weaker bodies, and reduces the risk of secondary injury during the bed transfer process; it is convenient for medical staff to make flexible adjustments according to the patient's specific situation and the position of the bed, whether it is adjusting the angle of the horizontal conveyor belt 3 or fine-tuning the patient's body position, thereby improving the bed transfer efficiency and saving time, which is particularly important for situations where patients need to be quickly placed in emergency situations.

[0052] Preferably, a rotating box 52 is provided in the head placement seat 5, and the rotating box 52 is rotatably connected in the head placement seat 5. A rotating motor 53 is provided on the side wall of the head placement seat 5, which is transmission-connected to the rotating box 52. The rotating motor 53 is located on the mobile frame 21, and the mobile frame 21 is provided with a sliding groove 24 for the rotating motor 53 to slide.

[0053] When the patient is on the horizontal conveyor belt 3, the rotating motor 53 drives the rotating box 52 to rotate on the head placement seat 5, and tilts the position of the rotating box 52 toward the side of the patient's head, so that the head and neck placement cushion 77 can be moved to the patient's head and neck position to prevent the patient's head or neck from shaking during the bed transfer process, thereby preventing subsequent complications. When the patient is on the bed and transfers to the horizontal conveyor belt 3, the head and neck placement cushion 77 can also limit and fix the position of the patient's neck and head. When the horizontal conveyor belt 3 moves horizontally, the rotating motor 53 drives the rotating box 52 to rotate to a horizontal position, so that the head and neck of the patient can be kept stable.

[0054] Limiting and fixing the position of the patient's neck and head has the following benefits:

[0055] Protect blood vessels: Patients with acute ischemic stroke often have lesions or blockages in the brain's blood vessels. Limiting and fixing the neck and head can prevent excessive shaking of the head or twisting of the neck when moving in bed, which may cause traction and compression of the neck blood vessels, thereby avoiding further damage to the blood vessels or affecting blood supply to the brain, and reducing the risk of aggravating cerebral ischemia due to vascular problems.

[0056] Avoid secondary injury: The brain of a stroke patient is in a fragile state of ischemia and hypoxia. Stabilizing the head and neck helps prevent shaking or displacement of brain tissue due to improper body position changes, reducing further traction and impact on damaged brain tissue, thereby reducing the possibility of secondary brain injury.

[0057] Maintaining normal intracranial pressure: A stable head and neck position helps maintain relatively stable intracranial pressure. Excessive or rapid changes in head position during bed transfer can cause fluctuations in intracranial pressure. Positioning can keep intracranial pressure relatively stable, stabilizing the patient's condition and reducing the risk of serious complications such as cerebral edema and brain herniation caused by abnormal intracranial pressure fluctuations.

[0058] Easy to operate and transfer: After the neck and head are limited and fixed, the position of the patient's head is relatively fixed, which allows medical staff to operate more conveniently and safely during the bed transfer process, improves bed transfer efficiency, reduces bed transfer time, and better protects patients during transfer, preventing head injuries caused by bumps, shaking, etc., thereby ensuring the safety of the transfer process.

[0059] Preferably, the head height adjustment assembly 6 includes a lifting plate 61, a lifting motor 62, a cross plate 63, a first adjustment plate 64, a second adjustment plate 65 and four limit rods 66. The cross plate 63 is horizontally arranged in the rotating box 52, the lifting motor 62 is located on the cross plate 63, the first adjustment plate 64 is connected to the main shaft of the lifting motor 62, and the four limit rods 66 are respectively arranged at the four corners of the lifting plate 61. The limit rods 66 are hinged to the lifting plate 61, and a limit seat that slides with the limit rods 66 is provided in the rotating box 52. The two ends of the second adjustment plate 65 are respectively hinged to the bottom of the first adjustment plate 64 and the lifting plate 61.

[0060] When the patient's head and neck are raised, the lifting motor 62 drives the first adjustment plate 64 to rotate, thereby driving the second adjustment plate 65 to rotate on the lifting plate 61, so that the lifting plate 61 moves up and down on the limiting seat through the four limiting rods 66, thereby driving the position of the lifting plate 61 to move on the head placement seat 5, so that the patient's neck or head is lifted upward during the process of crossing the bed, so that the head or neck position is kept flush with the patient's torso position without shaking;

[0061] Keeping the patient's head and neck level with the torso without shaking has the following benefits:

[0062] Improves cerebral blood circulation: Properly elevating the head and neck can place cerebral blood vessels in a more favorable position, promoting blood flow back to the heart and reducing pressure on cerebral blood vessels. This helps improve cerebral blood circulation and reduce brain tissue damage caused by ischemia. At the same time, maintaining a flat and stable position can avoid blood pressure fluctuations caused by the head being too low or too high, as well as shaking, and prevent adverse effects on blood supply to the brain.

[0063] Maintaining an open airway: Properly elevating and stabilizing the head and neck can help keep the patient's airway more open. This prevents the tongue from falling back and blocking the airway, facilitates drainage of oral and respiratory secretions, reduces the risk of aspiration and respiratory infection, and ensures normal respiratory function, providing adequate oxygen to the brain.

[0064] Reducing neck pressure: Aligning the head and neck with the torso allows the neck muscles and cervical spine to be in a more natural, relaxed state, reducing pressure on the neck. For patients with acute ischemic stroke, especially those with cervical vascular disease or cervical spine problems, this helps prevent excessive local pressure on the neck from affecting blood circulation, or from compressing the spinal cord and nerves due to cervical spine instability, further aggravating the condition.

[0065] Lowering intracranial pressure: A properly positioned and stable head and neck helps maintain a balance of intracranial pressure. Avoiding increased intracranial pressure due to improper head positioning or shaking reduces the risk of serious complications such as cerebral edema and brain herniation, which is crucial for the patient's condition and prognosis.

[0066] Preferably, the head angle adjustment assembly 7 includes a mounting seat 71, an adjustment motor 72, an adjustment block 73, an adjustment base 74, an adjustment screw 75 and two rotating plates 76. The mounting seat 71 is connected to the top of the lifting plate 61, the adjustment base 74 is arranged in the mounting seat 71, the adjustment screw 75 is rotatably connected to the adjustment base 74, the adjustment motor 72 is located on the adjustment base 74 and the adjustment motor 72 is transmission-connected to the adjustment screw 75, the adjustment base 74 is provided with two symmetrically arranged sliding rods 78, the adjustment block 73 slides with the two sliding rods 78, the adjustment block 73 is threadedly connected to the adjustment screw 75, the mounting seat 71 is provided with a head and neck placement cushion 77, the head and neck placement cushion 77 is hinged to the mounting seat 71, one end of the two rotating plates 76 is rotatably connected to the two sides of the adjustment block 73, and the other end of the two rotating plates 76 is hinged to the bottom of the head and neck placement cushion 77.

[0067] When the angular position of one end of the head and neck cushion 77 is adjusted, the adjustment motor 72 drives the adjustment screw 75 to rotate on the adjustment base 74, thereby driving the adjustment block 73 to move horizontally on the adjustment screw 75 and the two sliding rods 78, and the position movement of the adjustment block 73 will drive the two rotating plates 76 to rotate, thereby driving the head and neck cushion 77 to rotate on the mounting seat 71, which will cause one end of the head and neck cushion 77 to tilt upward and rotate. During the process of transferring the patient to the bed, the patient's head and neck position are ensured to remain stable and immobile, the difference between the horizontal conveyor belt 3 and the bed is compensated, and the patient's neck and head position are kept flush with the body; the neck blood vessels and nerves are prevented from being excessively compressed, the normal blood flow in the neck blood vessels is ensured, the blood supply to the brain is avoided from being affected by the compression of the blood vessels, and the discomfort or damage caused by the compression of the nerves is also reduced; the tongue root is prevented from falling back and blocking the airway, the airway is ensured to be unobstructed, normal gas exchange is maintained, sufficient oxygen is provided to the brain, and brain damage is avoided from being aggravated by hypoxia.

[0068] Preferably, the head limiting assembly 8 includes a movable cushion 81, a movable motor 82, a movable gear 83 and a movable tooth plate frame 80. A movable groove is provided at one end of the top of the mounting seat 71. The movable motor 82 is located in the mounting seat 71. The movable gear 83 is connected to the main shaft of the movable motor 82. The movable tooth plate frame 80 is vertically arranged at the bottom of the movable cushion 81. The movable gear 83 is engaged with the movable tooth plate frame 80, and the movable cushion 81 is slidably connected in the movable groove.

[0069] Preferably, the head limit assembly 8 also includes a fixed plate 84, an upper locking electric cylinder 85 and a lower locking electric cylinder 86. The fixed plate 84 is located in the mounting seat 71 and is located next to the movable groove. The upper locking electric cylinder 85 and the lower locking electric cylinder 86 are respectively provided with an upper locking rod 87 and a lower locking rod 88. The upper locking electric cylinder 85 and the lower locking electric cylinder 86 are symmetrically arranged on the fixed plate 84. The movable tooth plate frame 80 is provided with a socket hole 89 for connecting with the upper locking rod 87 or the lower locking rod 88.

[0070] When the horizontal conveyor belt 3 rotates horizontally, the moving motor 82 drives the moving gear 83 to rotate on the moving gear plate frame 80, so that the position of the moving cushion 81 moves up and down in the moving groove, and the position of the moving cushion 81 is moved to a position flush with the head and neck cushion 77, thereby fixing the patient's head and neck.

[0071] At this time, the upper locking electric cylinder 85 drives the upper locking rod 87 to move, and moves the position of the upper locking rod 87 to the insertion hole 89 on the movable tooth plate frame 80, thereby fixing the position of the movable tooth plate frame 80 and the position of the movable cushion 81;

[0072] When the horizontal conveyor belt 3 stops rotating and the patient is moved from the horizontal conveyor belt 3 to the bed, or when the patient is moved from the bed to the horizontal conveyor belt 3, the position of the movable cushion 81 moves downward away from the head and neck cushion 77, providing space for the subsequent downward movement of the patient's head and neck;

[0073] At this time, the lower locking electric cylinder 86 works to drive the lower locking rod 88 to move, and moves the position of the lower locking rod 88 to the plug hole 89 on the movable tooth plate frame 80, thereby fixing the position of the movable tooth plate frame 80 and the position of the movable cushion 81.

[0074] Preferably, a body weight sensor is provided on the horizontal conveyor belt 3. The model of the body weight sensor is YZC-1616B.

[0075] The weight sensor can weigh the weight of patients who have passed the bed. The dosage of drugs for intravenous thrombolysis in neurology ischemic stroke can be configured according to the patient's weight, so that the dosage of drugs for intravenous thrombolysis can be calculated during the treatment process.

[0076] Preferably, two symmetrically arranged lifting cylinders 13 are provided on the bed base 11 , the bed board 12 is connected to the telescopic ends of the two lifting cylinders 13 , and the outer sides of the lifting cylinders 13 are provided with a corrugated protective cover 14 .

[0077] When the patient passes from the stretcher bed body 1 to the hospital bed, or from the hospital bed to the stretcher bed body 1, it is necessary to keep the height between the stretcher bed body 1 and the hospital bed consistent. At this time, the two lifting cylinders 13 can work simultaneously to drive the height position of the bed board 12 to move, so that the stretcher bed body 1 and the hospital bed maintain the same height, ensuring the connection between the stretcher bed body 1 and the hospital bed.

[0078] The foregoing is merely an embodiment of the present invention and is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A stretcher bed that is easy to move over and can be weighed and lifted, characterized in that: It comprises a stretcher bed body (1), wherein the stretcher bed body (1) comprises a bed base (11) and a bed board (12); The stretcher bed body (1) is provided with a bed moving assembly (2), a horizontal conveyor belt (3) and a conveying conversion assembly (4); The bed-passing moving assembly (2) is arranged on the bed board (12), the conveying conversion assembly (4) is arranged on the bed-passing moving assembly (2), and the conveying conversion assembly (4) and the bed-passing moving assembly (2) are rotatably connected, and the horizontal conveyor belt (3) is sleeved on the conveying conversion assembly (4); The bed moving assembly (2) is provided with a head placement seat (5), a head height adjustment assembly (6), a head angle adjustment assembly (7) and a head limit assembly (8); The head placement seat (5) is slidably connected to the bed moving assembly (2), and the horizontal conveyor belt (3) can drive the head placement seat (5) to move on the bed moving assembly (2); The head height adjustment component (6) is arranged in the head placement seat (5), and the head angle adjustment component (7) is arranged in the head height adjustment component (6); The head limiting assembly (8) is arranged on the head angle adjustment assembly (7), and the head limiting assembly (8) and the head angle adjustment assembly (7) are slidably matched; The bed moving assembly (2) comprises a moving frame (21) and two horizontal electric slides (22), the two horizontal electric slides (22) are symmetrically arranged at one end of the bed board (12), the two ends of the moving frame (21) are respectively connected to the moving ends of the two horizontal electric slides (22), one side of the moving frame (21) is provided with two slide grooves (23), the head placement seat (5) is provided with two sliders (51), the head placement seat (5) is slidably connected in the two slide grooves (23) through the two sliders (51), and the two sides of the head placement seat (5) are provided with horizontally connected corrugated soft plates (9); The conveying conversion assembly (4) includes a conveying motor (41), two conveying rollers (42), two conversion rollers (43) and two conversion members. The two conveying rollers (42) are symmetrically connected to the mobile frame (21) in an upper and lower rotation manner. The mobile frame (21) is provided with two conversion slots. The conveying motor (41) is located in the mobile frame (21) and is transmission-connected to one of the conveying rollers (42). The two conversion members are respectively arranged in the two conversion slots. Each of the conversion members includes a conversion motor (44) and a conversion plate (45). The conversion motor (44) is located in the conversion slot. The conversion plate (45) is connected to the main shaft of the conversion motor (44). The two ends of the two conversion rollers (43) are rotationally connected to the two conversion plates (45). The horizontal conveyor belt (3) is sleeved on the two conveying rollers (42) and the two conversion rollers (43). The horizontal conveyor belt (3) is connected to the head placement seat (5). A rotating box (52) is provided in the head placement seat (5), and the rotating box (52) is rotatably connected to the head placement seat (5). A rotating motor (53) is provided on the side wall of the head placement seat (5) and is transmission-connected to the rotating box (52). The rotating motor (53) is located on the moving frame (21), and the moving frame (21) is provided with a sliding groove (24) for the rotating motor (53) to slide. A body weight sensor is provided on the horizontal conveyor belt (3).

2. The stretcher bed that is convenient for bed transfer and can be weighed and lifted according to claim 1, characterized in that: The head height adjustment assembly (6) comprises a lifting plate (61), a lifting motor (62), a cross plate (63), a first adjustment plate (64), a second adjustment plate (65) and four limit rods (66), wherein the cross plate (63) is horizontally arranged in the rotating box (52), the lifting motor (62) is located on the cross plate (63), the first adjustment plate (64) is connected to the main shaft of the lifting motor (62), the four limit rods (66) are respectively arranged at the four corners of the lifting plate (61), the limit rods (66) are hinged to the lifting plate (61), a limit seat slidably matched with the limit rods (66) is provided in the rotating box (52), and the two ends of the second adjustment plate (65) are respectively hinged to the bottom of the first adjustment plate (64) and the lifting plate (61).

3. The stretcher bed that is easy to move over and can be weighed and lifted according to claim 2, characterized in that: The head angle adjustment assembly (7) comprises a mounting seat (71), an adjustment motor (72), an adjustment block (73), an adjustment base (74), an adjustment screw (75) and two rotating plates (76), wherein the mounting seat (71) is connected to the top of the lifting plate (61), the adjustment base (74) is arranged in the mounting seat (71), the adjustment screw (75) is rotatably connected to the adjustment base (74), the adjustment motor (72) is located on the adjustment base (74) and the adjustment motor (72) is transmission-connected to the adjustment screw (75), and the adjustment base ( 74) is provided with two symmetrically arranged sliding rods (78), the adjustment block (73) is slidably matched with the two sliding rods (78), the adjustment block (73) is threadedly connected to the adjustment screw (75), the mounting seat (71) is provided with a head and neck placement cushion (77), the head and neck placement cushion (77) is hinged to the mounting seat (71), one end of the two rotating plates (76) is rotatably connected to the two sides of the adjustment block (73), and the other end of the two rotating plates (76) is hinged to the bottom of the head and neck placement cushion (77).

4. The stretcher bed that is easy to move over and can be weighed and lifted according to claim 3, characterized in that: The head limiting assembly (8) includes a movable cushion (81), a movable motor (82), a movable gear (83) and a movable tooth plate frame (80); a movable groove is provided at one end of the top of the mounting seat (71); the movable motor (82) is located in the mounting seat (71); the movable gear (83) is connected to the main shaft of the movable motor (82); the movable tooth plate frame (80) is vertically arranged at the bottom of the movable cushion (81); the movable gear (83) is engaged with the movable tooth plate frame (80); and the movable cushion (81) is slidably connected in the movable groove.

5. The stretcher bed that is easy to move over and can be weighed and lifted according to claim 4, characterized in that: The head limiting assembly (8) further includes a fixed plate (84), an upper locking electric cylinder (85) and a lower locking electric cylinder (86), wherein the fixed plate (84) is located in the mounting seat (71) and is located beside the movable groove, and the upper locking electric cylinder (85) and the lower locking electric cylinder (86) are respectively provided with an upper locking rod (87) and a lower locking rod (88), and the upper locking electric cylinder (85) and the lower locking electric cylinder (86) are symmetrically arranged on the fixed plate (84), and the movable tooth plate frame (80) is provided with a plug hole (89) for plugging with the upper locking rod (87) or the lower locking rod (88).

6. The stretcher bed that is easy to move over and can be weighed and lifted according to claim 1, characterized in that: Two symmetrically arranged lifting electric cylinders (13) are provided on the bed base (11); the bed plate (12) is connected to the telescopic ends of the two lifting electric cylinders (13); and the outer sides of the lifting electric cylinders (13) are provided with corrugated protective sleeves (14).

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