Transfer device for ultrasound contrast of abdominal injury patient

Abstract

The invention discloses a transfer device for ultrasound contrast of an abdominal injury patient, the transfer device comprises a self-propelled base, a bearing support, a lifting support and a bed board, a slope level self-adaptive adjusting mechanism is arranged between the self-propelled base and the bearing support, and the slope level self-adaptive adjusting mechanism can keep the bearing support in a horizontal state; a pushing mechanism and a locking mechanism are arranged between the lifting support and the bed board, the locking mechanism can lock the bed board in the lifting support to prevent the bed board from being disengaged from the lifting support, and the pushing mechanism can horizontally push the bed board to push the bed board out of or push the bed board into the lifting support after the locking mechanism is unlocked. The transferring device is higher in intelligent degree, the patient can be autonomously conveyed to a corresponding department according to a planned route, the inclination angle of the bed board can be automatically adjusted according to the gradient so as to keep the patient horizontal, and the patient is prevented from inclining or shaking along with the gradient to cause secondary injury.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to a transfer device for ultrasound contrast imaging of patients with abdominal injuries. Background Technology

[0002] Abdominal injury refers to damage to internal organs or tissues within the abdominal cavity caused by external force or pathological factors. Treatment must be tailored to the type and severity of the injury, and timely medical attention is crucial. Common types include blunt force trauma, sharp force trauma, and penetrating injuries, which may be accompanied by dangerous situations such as internal bleeding and organ rupture; improper treatment can be life-threatening. Contrast-enhanced ultrasound of the abdomen can be used to assess the condition following an abdominal injury. Abdominal trauma can lead to damage to internal organs, hematomas, or other lesions. Contrast-enhanced ultrasound can show abnormal accumulation of contrast agent in the damaged area, thus helping to determine the location and severity of the injury.

[0003] Patients with minor abdominal injuries can usually walk independently or with the assistance of family members to seek medical attention. However, patients with severe abdominal injuries often require a patient transport stretcher to travel between different departments in the hospital for diagnosis and treatment, as well as to undergo ultrasound examinations of the abdominal injury. Currently used transport stretchers mainly consist of a trolley and a portable bed board. The portable bed board can be lifted from the trolley and placed on the ground so that the patient can lie on it. Then, paramedics lift the bed board and place it back on the trolley before pushing it to the examination room and ultrasound imaging room for diagnosis and treatment. During ultrasound examinations, medical personnel lift the patient again and place them on a CT scan table for the ultrasound examination. After the examination, the patient is lifted back onto the bed board for further transport.

[0004] The current transport vehicles have the following drawbacks: 1. The transport vehicles have a low level of intelligence, requiring manual pushing and cannot autonomously navigate and transport patients to the appropriate departments for diagnosis and treatment; 2. During the movement of the transport vehicles, they often pass through areas such as slopes, and the existing transport beds cannot adjust the bed board according to the slope to keep the bed board in a horizontal position to prevent secondary injury to the patient; 3. At the same time, the existing transport vehicles have difficulties in transferring patients to other beds, especially some overweight patients, which often require multiple people to complete the patient transfer operation. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a transfer device for ultrasound imaging of patients with abdominal injuries. This transfer device is more intelligent and can autonomously transport patients to the appropriate department according to a planned route without manual pushing. When walking on slopes, the device can automatically adjust the inclination angle of the bed board according to the slope to maintain a horizontal position, preventing secondary injury caused by tilting or shaking of the patient. The height of the device can be adjusted over a wide range, making it convenient for medical staff to raise and lower the bed board, reducing their burden, and also facilitating the alignment of the bed board with the ultrasound examination bed for easy patient placement. The device can automatically push the bed board onto the examination bed, and after the examination, it can pull the bed board back to its original position and automatically lock the bed board after resetting to prevent bedside wobbling.

[0006] To achieve the above-mentioned technical effects, the present invention is implemented through the following technical solution: A transfer device for ultrasound contrast imaging of patients with abdominal injuries includes a self-propelled base, a support, a lifting support, and a bed board. A slope level adaptive adjustment mechanism is provided between the self-propelled base and the support, ensuring the support remains horizontal. A lifting mechanism is provided between the support and the lifting support, allowing adjustment of the lifting support's height. The bed board is placed on top of the lifting support. A pushing mechanism and a locking mechanism are provided between the lifting support and the bed board. The locking mechanism locks the bed board within the lifting support to prevent it from detaching. After the locking mechanism is released, the pushing mechanism horizontally pushes the bed board out or in from the lifting support. A second battery and a controller are fixed to the support. The lifting mechanism, pushing mechanism, and locking mechanism are all connected to the controller, which has an operating panel extending from it.

[0007] Furthermore, the slope level adaptive adjustment mechanism includes a planar X-axis rotation adjustment mechanism and a planar Y-axis rotation adjustment mechanism. A walking wheel is fixed to one side of the bottom of the self-propelled base, and a steering wheel is fixed to the other side. Inside the self-propelled base are a walking drive motor, a steering motor, a first battery, several first relays, and a control circuit board. The X-axis rotation adjustment mechanism, the planar Y-axis rotation adjustment mechanism, the walking drive motor, the steering motor, and the control circuit board are all connected to the first battery. The X-axis rotation adjustment mechanism, the planar Y-axis rotation adjustment mechanism, the walking drive motor, and the steering motor are all connected to the control circuit board via relays. The control circuit board is equipped with a first microcontroller, a first power module, a first analog-to-digital converter module, a gyroscope, an IoT module, and a GPS positioning module. The first battery is connected to the first microcontroller via the first power module. The first relays, the first analog-to-digital converter module, the gyroscope, the IoT module, and the GPS positioning module are all connected to the first microcontroller.

[0008] Furthermore, the planar X-axis rotation adjustment mechanism includes a front-to-back deflection U-shaped groove and a front-to-back deflection drive motor, and the planar Y-axis rotation adjustment mechanism includes a left-to-right deflection U-shaped groove and a left-to-right deflection drive motor. The left-to-right deflection U-shaped groove is rotatably connected to the groove of the front-to-back deflection U-shaped groove and is fixedly connected to the rotating shaft of the front-to-back deflection drive motor. When the front-to-back deflection drive motor rotates forward or backward, it drives the left-to-right deflection U-shaped groove to rotate forward or backward, thereby driving the bearing support and the bed board to deflect forward or backward. The bearing support is rotatably connected to the left-to-right deflection U-shaped groove and is fixedly connected to the rotating shaft of the left-to-right deflection drive motor. When the left-to-right deflection drive motor rotates forward or backward, it drives the bed board to rotate left or right, thereby driving the bed board to deflect left or right. The planar X-axis rotation adjustment mechanism, including the front-to-back deflection U-shaped groove and the front-to-back deflection drive motor, can adjust the posture of the bed board to keep it in a horizontal state when working simultaneously.

[0009] Furthermore, the bearing support has a first groove on its left side, a lifting working groove in the middle of the movable base plate, and a second groove on its right side. The lifting mechanism includes a lifting drive motor, a lead screw, a lifting traction slider, a first cross-type shear lifting rod, and a second cross-type shear lifting rod. The lifting drive motor is fixed in the first groove. A lead screw is rotatably connected to the central axis of the lifting working groove. One end of the lead screw is fixedly connected to the rotating shaft of the lifting drive motor. Sliding limit rods are fixed on both sides of the lead screw. A lifting traction slider is threaded onto the lead screw. The sliding limit rods on both sides of the lead screw pass through the lifting traction slider. Movable hinge seats are fixed on both sides of the top of the lifting traction slider. The bearing support is located on the right side of the second groove. A pair of fixed hinge seats are fixed on the upper part. The first cross-type shear lifting rod is hinged to the movable hinge seat and the fixed hinge seat on the same side at the rear. The second cross-type shear lifting rod is hinged to the movable hinge seat and the fixed hinge support on the same side at the front. A connecting beam is provided between the first cross-type shear lifting rod and the second cross-type shear lifting rod. Both the first cross-type shear rod and the second cross-type shear rod can rotate on the connecting beam. The bottom of the lifting support has two sliding grooves. A sliding hinge seat is slidably arranged in the sliding grooves. Sliding columns are fixed on both sides of the top of the sliding hinge seat. The sliding columns are locked in the sliding grooves of the lifting support and can slide in the sliding grooves. The tops of the first cross-type shear lifting rod and the second cross-type shear lifting rod are hinged to the sliding hinge seats.

[0010] Furthermore, the lifting support has a pushing working groove, and rotating slots are formed on the upper sides of the front and rear sides of the pushing working groove. A retractable groove is formed on the front left side of the lifting support. The pushing mechanism includes a pushing drive motor, a pushing roller, and a chain. The pushing drive motor is fixed in the retractable groove. The two ends of the pushing roller are fixed with rotating shafts. The rotating shafts are engaged in the rotating slots and can rotate in the rotating slots. A sprocket is fixed on the front rotating shaft of the pushing roller. Several pushing rollers are connected to each other by a chain to form a rotating whole. The rotating shaft of the pushing drive motor is fixedly connected to the rotating shaft of the left pushing roller. The roller surface of the pushing roller is a gear surface, and the bottom plane of the bed board is a rack surface. The bed board and the pushing roller are connected by meshing of the gear surface and the rack surface.

[0011] Furthermore, the locking mechanism includes an electric push rod, a locking plate, and locking pins fixed to the left and right ends of the lifting support. A pair of locking pins are fixed to the locking plate, the locking plate is fixed to the piston end of the electric push rod, the electric push rod is fixed to the locking support, and locking grooves are opened on both sides of the left and right ends of the bed board. The locking pins can be inserted into the locking grooves to form a lock.

[0012] Furthermore, push-limiting plates are fixed on both sides of the middle part of the lifting support.

[0013] Furthermore, the controller includes a housing and a base plate. A PCB circuit board and several second relays are fixed on the base plate. A second microcontroller, a second power module, an analog-to-digital converter (ADC), and a second digital-to-analog converter (DAC) are fixed on the PCB circuit board. The second relays are connected to the second microcontroller through the DAC. The second battery is connected to the second microcontroller through the ADC. The operation panel is connected to the ADC through wires. The lifting mechanism, the pushing mechanism, and the locking mechanism are all connected to the second relays.

[0014] The beneficial effects of this invention are as follows: The transfer device has a higher degree of intelligence and can autonomously transport patients to the corresponding departments according to the planned route without manual pushing; the device can automatically adjust the inclination angle of the bed board according to the slope to maintain horizontality when walking on slopes, preventing secondary injury caused by tilting or shaking of the patient due to the slope; the height of the device can be adjusted over a wide range, making it convenient for medical staff to raise and lower the bed board, reducing the burden on the back of medical staff to stand up completely, and at the same time, it is convenient to align the bed board with the ultrasound examination bed so that the bed board can be pushed onto the examination bed; the device can automatically push the bed board onto the examination bed, and after the examination is completed, it will pull the bed board back to its original position, and automatically lock the bed board after resetting to prevent the bed from shaking. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a transfer device for ultrasound contrast imaging in patients with abdominal injuries. Figure 2 This is a schematic diagram of the assembly structure of the slope level adaptive adjustment mechanism; Figure 3 This is a schematic diagram of the internal structure of the self-propelled base; Figure 4 This is a structural schematic diagram of the bearing support and lifting mechanism; Figure 5 This is a structural schematic diagram of the lifting support, pushing mechanism, and locking mechanism. Figure 6 This is a schematic diagram of the internal structure of the controller.

[0017] The attached diagram lists the components represented by each number as follows: 1-Bearing support, 2-Self-propelled base, 3-Lifting support, 4-Bed board, 5-Lifting mechanism, 6-Pushing mechanism, 7-Locking mechanism, 8-Second battery, 9-Controller, 10-Operation panel, 21-Slope level adaptive adjustment mechanism, 22-Walking wheel, 23-Steering wheel, 24-First battery, 25-Control circuit board, 31-Pushing working groove, 32-Rotating slot, 33-Pushing limit plate, 34-Handrail, 41-Rack surface, 42-Locking groove, 43-Constraint belt, 51-Lifting drive motor, 52-Screw screw, 53-Lifting traction slider, 54-Sliding limit rod, 55-First cross-type shear lifting rod, 56-Connecting beam, 57-Moving hinge seat, 58-Fixed hinge seat, 59-Sliding hinge seat, 61-Pushing drive motor, 62-Pushing roller. 63-Chain, 71-Locking support, 72-Electric push rod, 73-Locking plate, 74-Locking pin, 91-Base plate, 92-PCB circuit board, 93-Second microcontroller, 94-Second power module, 95-Analog-to-digital converter module, 96-Second digital-to-analog converter module, 97-Second relay, 101-First groove, 102-Lifting working groove, 103-Second groove, 211-Front and rear deflection U-shaped groove, 212-Left and right deflection U-shaped groove, 213-Front and rear deflection drive motor, 214-Left and right deflection drive motor, 221-Walking drive motor, 231-Steering motor, 251-First microcontroller, 252-First power module, 253-First digital-to-analog converter module, 254-Gyroscope, 255-Communication module, 256-Positioning module, 621-Sprocket, 622-Shaft. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figure 1As shown, a transfer device for ultrasound contrast imaging of patients with abdominal injuries includes a self-propelled base 2, a support 1, a lifting support 3, and a bed board 4. A restraint strap 43 is fixed to the top of the bed board. A slope level adaptive adjustment mechanism 21 is provided between the self-propelled base 2 and the support 1, which keeps the support 1 horizontal. A lifting mechanism 5 is provided between the support 1 and the lifting support, which can adjust the height of the lifting support. The bed board is placed on top of the lifting support, and a pusher is provided between the lifting support and the bed board. Mechanism 6 and locking mechanism 7 are provided. The locking mechanism can lock the bed board in the lifting support to prevent the bed board from coming out of the lifting support. After the locking mechanism is released, the pushing mechanism can horizontally push the bed board to push or push the bed board out of the lifting support. The support is fixed with a second battery 8 and a controller 9. The lifting mechanism, pushing mechanism and locking mechanism are all connected to the controller. The controller 9 has an operation panel 10. The operation panel 10 is provided with an up button, a down button, a push button, a reset button, a lock button and an unlock button.

[0020] like Figure 2 As shown, the planar X-axis rotation adjustment mechanism includes a front-to-back deflection U-shaped groove 211 and a front-to-back deflection drive motor 213. The planar Y-axis rotation adjustment mechanism includes a left-to-right deflection U-shaped groove 212 and a left-to-right deflection drive motor 214. The left-to-right deflection U-shaped groove is rotatably connected to the groove of the front-to-back deflection U-shaped groove and is fixedly connected to the rotating shaft of the front-to-back deflection drive motor. When the front-to-back deflection drive motor rotates forward or backward, it drives the left-to-right deflection U-shaped groove to rotate forward or backward, thereby driving the bearing support and the bed board to deflect forward or backward. The bearing support is rotatably connected to the left-to-right deflection U-shaped groove and is fixedly connected to the rotating shaft of the left-to-right deflection drive motor. When the left-to-right deflection drive motor rotates forward or backward, it drives the bed board to rotate left or right, thereby driving the bed board to deflect left or right. The planar X-axis rotation adjustment mechanism, including the front-to-back deflection U-shaped groove and the front-to-back deflection drive motor, can adjust the posture of the bed board to keep it in a horizontal state when working simultaneously.

[0021] like Figure 3As shown, the slope level adaptive adjustment mechanism includes a planar X-axis rotation adjustment mechanism and a planar Y-axis rotation adjustment mechanism. A walking wheel 22 is fixed to one side of the bottom of the self-propelled base, and a steering wheel 23 is fixed to the other side. Inside the self-propelled base are a walking drive motor 221, a steering motor 231, a first battery 24, several first relays 26, and a control circuit board 25. The X-axis rotation adjustment mechanism, the planar Y-axis rotation adjustment mechanism, the walking drive motor, the steering motor, and the control circuit board are all connected to the first battery. The walking drive motor and steering motor are both connected to the control circuit board via relays. The control circuit board is equipped with a first microcontroller 251, a first power module 252, a first digital-to-analog converter 253, a gyroscope 254, an Internet of Things (IoT) module 255, and a GPS positioning module 256. The first battery is connected to the first microcontroller via the first power module. The first relay, the first digital-to-analog converter, the gyroscope, the IoT module, and the GPS positioning module are all connected to the first microcontroller. The gyroscope 254 is used to detect the road slope when the self-propelled base 2 is walking and feeds it back to the first microcontroller. The first microcontroller drives the slope level adaptive adjustment mechanism to adjust the posture of the bed board to keep it level.

[0022] like Figure 4As shown, the support 1 has a first groove 101 on its left side, a lifting working groove 102 in the middle of the movable base plate, and a second groove 103 on its right side. The lifting mechanism 5 includes a lifting drive motor 51, a lead screw 52, ​​a lifting traction slider 53, a first cross-type shear lifting rod 55, and a second cross-type shear lifting rod. The lifting drive motor 51 is fixed in the first groove 101. The lead screw 52 is rotatably connected to the central axis of the lifting working groove 102. One end of the lead screw is fixedly connected to the rotating shaft of the lifting drive motor. Sliding limit rods 54 are fixed on both sides of the lead screw. The lifting traction slider 53 is threaded onto the lead screw 52. The sliding limit rods on both sides of the lead screw 52 pass through the lifting traction slider 53. Movable... A pair of fixed hinge seats 58 are fixed on the bearing support to the right of the second groove. The first cross-type shear lifting rod is hinged to the movable hinge seat and the fixed hinge seat on the same side at the rear. The second cross-type shear lifting rod is hinged to the movable hinge seat and the fixed hinge support on the same side at the front. A connecting beam 56 is provided between the first cross-type shear lifting rod and the second cross-type shear lifting rod. Both the first cross-type shear rod and the second cross-type shear rod can rotate on the connecting beam. The bottom of the lifting support 3 has two sliding grooves. A sliding hinge seat 59 is slidably arranged in the sliding grooves. Sliding columns are fixed on both sides of the top of the sliding hinge seat. The sliding columns are stuck in the sliding grooves of the lifting support and can slide in the sliding grooves. The tops of the first cross-type shear lifting rod and the second cross-type shear lifting rod are hinged to the sliding hinge seat.

[0023] like Figure 5 As shown, the lifting support 3 has a pushing working groove 31, and a rotating slot 32 is opened on the upper part of the front and rear side walls of the pushing working groove. A handrail 34 is fixed to the right end of the lifting support 3, and a retractable groove is opened on the front left side of the lifting support 3. The pushing mechanism 6 includes a pushing drive motor 61, a pushing roller 62, and a chain 63. The pushing drive motor 61 is fixed in the retractable groove. The two ends of the pushing roller are fixed with rotating shafts 622. The rotating shafts are inserted into the rotating slots and can rotate in the rotating slots. A sprocket 621 is fixed on the rotating shaft on the front side of the pushing roller. Several pushing rollers are connected to each other by the chain 63 to form a rotating whole. The rotating shaft of the pushing drive motor is fixedly connected to the rotating shaft of the left pushing roller. The roller surface of the pushing roller 62 is a gear surface, and the bottom plane of the bed board 4 is a rack surface 41. The bed board 4 and the pushing roller 62 are connected by meshing of the gear surface and the rack surface.

[0024] The locking mechanism 7 includes an electric push rod 72, a locking plate 73, and a locking pin 74 fixed to the left and right ends of the lifting support. A pair of locking pins are fixed to the locking plate, and the locking plate is fixed to the piston end of the electric push rod. The electric push rod is fixed to the locking support 71. Locking grooves 42 are opened on both sides of the left and right ends of the bed board 4, and the locking pins can be inserted into the locking grooves to form a lock.

[0025] Push limiting plates 33 are fixed on both sides of the middle part of the lifting support 3.

[0026] like Figure 6 As shown, the controller 9 includes a housing and a base plate 91. A PCB circuit board 92 and several relays 97 are fixed on the base plate. A microcontroller 93, a power module 94, an analog-to-digital converter 95, and a digital-to-analog converter 96 are fixed on the PCB circuit board. The relays are connected to the microcontroller through the digital-to-analog converter module. The battery is connected to the microcontroller through the power module. The operation panel is connected to the analog-to-digital converter module through wires. The lifting mechanism, the pushing mechanism, and the locking mechanism are all connected to the relays.

[0027] In this embodiment, the first and second microcontrollers are 51 series microcontrollers, the first and second power modules are AMS1117-3.3V power chips, the first and second digital-to-analog converters are DAC0832 digital-to-analog converters, the analog-to-digital converter is ADC0864 analog-to-digital converter, the first and second relays are J5V-1 miniature relays, and the Internet of Things module is a 4G communication module.

[0028] One specific application of this device is as follows: The control circuit board inside the self-propelled base 2 is connected to the host computer via an Internet of Things (IoT) module and receives route planning information from the host computer. The positioning module uses a GPS positioning module to obtain the current position of the device and feed it back to the first microcontroller. The first microcontroller transmits the current position to the host computer. The first microcontroller will simultaneously compare the position deviation between the current position and the planned path and make real-time adjustments. During the adjustment, the first microcontroller will output walking and / or turning commands to the walking drive motor and the turning motor to control the walking route of the device, thereby achieving the task of transporting the patient to the target location. During the movement of the self-propelled base, the gyroscope will detect the slope information of the self-propelled base in real time and transmit it to the first microcontroller. The first microcontroller will then output forward, backward, left, and right deflection commands to the first relay. The first relay controls the forward and reverse rotation of the forward and backward deflection drive motor and the left and right deflection drive motor, thereby adjusting the posture of the support base to maintain the horizontal state of the support base.

[0029] After pressing the up or down button on the operation panel, the microcontroller outputs a command to the relay via the digital-to-analog converter module. The relay will then connect the forward or reverse rotation circuit of the lifting drive motor 51, causing the lifting drive motor 51 to rotate forward or reverse. When the lifting drive motor 51 rotates forward or reverse, it will drive the lead screw 52 to rotate forward or reverse accordingly. The lifting pull slider 53, which is threaded to the lead screw 52, ​​slides to the left or right along the lifting working groove 102 under the restriction of the sliding limit rod 54. The lifting pull slider 53 will pull the first cross shear lifting rod and the second cross shear lifting rod to the left via the movable hinge seat 57. The two cross-type shear lifts, or by pushing the first and second cross-type shear lifts to the right, will rotate and lower or raise. At the same time, the lifting supports fixed to the top of the first and second cross-type shear lifts will also lower or raise, and the bed board will also lower or raise accordingly. This makes it easier for medical staff to remove the bed board, lift it back, or directly lift the patient onto the bed board, adjusting the bed board height to reduce the burden on the lower back when bending over, squatting, or standing up. When the patient is transferred to the... After the ultrasound imaging room, this device can be pushed to the rear of the ultrasound examination table. Adjusting the height of the bed board allows it to be directly pushed onto the ultrasound examination table. Pressing the push button activates the second microcontroller, which outputs a command to the second relay via the second analog-to-digital converter. The second relay then activates the forward rotation circuit of the push drive motor 61, causing the push drive motor 61 to rotate forward and drive the left-end push roller 62 to rotate counter-clockwise. The rotation of the left-end push roller, via a chain, drives all the push rollers to rotate counter-clockwise. The bed board 4, which meshes with the push roller, slides out from the left side, thus pushing the bed board onto the ultrasound examination table. After the inspection is completed, press the reset button. The push drive motor 61 reverses and drives the push roller to rotate clockwise. The medical staff pushes the bed board to the right, so that the bed board overlaps the push roller at the left end. The bed board slides to the right as the push roller rotates clockwise until it is reset. After the bed board is reset, press the lock button. The second microcontroller connects the power supply circuit of the electric push rod through the relay. The electric push rod then extends the piston rod outward, and the locking pin is inserted into the locking groove 42 of the bed board, thereby fixing both ends of the bed board to the lifting support to prevent the bed board from shaking or falling off, so as to fix the patient.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A transfer device for ultrasound contrast imaging of patients with abdominal injuries, characterized in that, The device includes a self-propelled base, a support bracket, a lifting bracket, and a bed board. A slope level adaptive adjustment mechanism is provided between the self-propelled base and the support bracket to keep the support bracket level. A lifting mechanism is provided between the support bracket and the lifting bracket to adjust the height of the lifting bracket. The bed board is placed on top of the lifting bracket. A pushing mechanism and a locking mechanism are provided between the lifting bracket and the bed board. The locking mechanism locks the bed board in the lifting bracket to prevent it from coming out. The pushing mechanism can horizontally push the bed board out or in after the locking mechanism is released. A second battery and a controller are fixed on the support bracket. The lifting mechanism, pushing mechanism, and locking mechanism are all connected to the controller, which has an operation panel extending from it.

2. The transfer device for ultrasound contrast imaging of patients with abdominal injuries according to claim 1, characterized in that, The slope level adaptive adjustment mechanism includes a planar X-axis rotation adjustment mechanism and a planar Y-axis rotation adjustment mechanism. A walking wheel is fixed to one side of the bottom of the self-propelled base, and a steering wheel is fixed to the other side. Inside the self-propelled base are a walking drive motor, a steering motor, a first battery, several first relays, and a control circuit board. The X-axis rotation adjustment mechanism, the planar Y-axis rotation adjustment mechanism, the walking drive motor, the steering motor, and the control circuit board are all connected to the first battery. The X-axis rotation adjustment mechanism, the planar Y-axis rotation adjustment mechanism, the walking drive motor, and the steering motor are all connected to the control circuit board via relays. The control circuit board is equipped with a first microcontroller, a first power module, a first analog-to-digital converter module, a gyroscope, an IoT module, and a GPS positioning module. The first battery is connected to the first microcontroller via the first power module. The first relays, the first analog-to-digital converter module, the gyroscope, the IoT module, and the GPS positioning module are all connected to the first microcontroller.

3. The transfer device for ultrasound contrast imaging of patients with abdominal injuries according to claim 2, characterized in that, The planar X-axis rotation adjustment mechanism includes a front-to-back deflection U-shaped groove and a front-to-back deflection drive motor. The planar Y-axis rotation adjustment mechanism includes a left-to-right deflection U-shaped groove and a left-to-right deflection drive motor. The left-to-right deflection U-shaped groove is rotatably connected to the groove of the front-to-back deflection U-shaped groove and is fixedly connected to the shaft of the front-to-back deflection drive motor. When the front-to-back deflection drive motor rotates forward or backward, it drives the left-to-right deflection U-shaped groove to rotate forward or backward, thereby driving the bearing support and the bed board to deflect forward or backward. The bearing support is rotatably connected to the left-to-right deflection U-shaped groove and is fixedly connected to the shaft of the left-to-right deflection drive motor. When the left-to-right deflection drive motor rotates forward or backward, it drives the bed board to rotate left or right, thereby driving the bed board to deflect left or right. The planar X-axis rotation adjustment mechanism, including the front-to-back deflection U-shaped groove and the front-to-back deflection drive motor, can adjust the posture of the bed board to keep it in a horizontal state when working simultaneously.

4. The transfer device for ultrasound contrast imaging of patients with abdominal injuries according to claim 3, characterized in that, The support has a first groove on its left side, a lifting working groove in the middle of the movable base plate, and a second groove on its right side. The lifting mechanism includes a lifting drive motor, a lead screw, a lifting traction slider, a first cross-type shear lifting rod, and a second cross-type shear lifting rod. The lifting drive motor is fixed in the first groove. A lead screw is rotatably connected to the central axis of the lifting working groove. One end of the lead screw is fixedly connected to the rotating shaft of the lifting drive motor. Sliding limit rods are fixed on both sides of the lead screw. A lifting traction slider is threaded onto the lead screw. The sliding limit rods on both sides of the lead screw pass through the lifting traction slider. Movable hinge seats are fixed on both sides of the top of the lifting traction slider. A support is fixed on the right side of the second groove. There is a pair of fixed hinge seats. The first cross-type shear lifting rod is hinged to the movable hinge seat and the fixed hinge seat on the same side at the rear. The second cross-type shear lifting rod is hinged to the movable hinge seat and the fixed hinge support on the same side at the front. A connecting beam is provided between the first cross-type shear lifting rod and the second cross-type shear lifting rod. Both the first cross-type shear rod and the second cross-type shear lifting rod can rotate on the connecting beam. The bottom of the lifting support has two sliding grooves. A sliding hinge seat is slidably arranged in the sliding grooves. Sliding columns are fixed on both sides of the top of the sliding hinge seat. The sliding columns are locked in the sliding grooves of the lifting support and can slide in the sliding grooves. The tops of the first cross-type shear lifting rod and the second cross-type shear lifting rod are hinged to the sliding hinge seat.

5. The transfer device for ultrasound contrast imaging of patients with abdominal injuries according to claim 4, characterized in that, The lifting support has a pushing working groove, and rotating slots are formed on the upper sides of the front and rear sides of the pushing working groove. A retractable groove is formed on the front left side of the lifting support. The pushing mechanism includes a pushing drive motor, a pushing roller, and a chain. The pushing drive motor is fixed in the retractable groove. The two ends of the pushing roller are fixed with rotating shafts, which are engaged in the rotating slots and can rotate within them. A sprocket is fixed on the front rotating shaft of the pushing roller. Several pushing rollers are connected by a chain to form a rotating whole. The rotating shaft of the pushing drive motor is fixedly connected to the rotating shaft of the left-end pushing roller. The roller surface of the pushing roller is a gear surface, and the bottom plane of the bed board is a rack surface. The bed board and the pushing roller are connected by meshing of the gear surface and the rack surface.

6. The transfer device for ultrasound contrast imaging of patients with abdominal injuries according to claim 5, characterized in that, The locking mechanism includes an electric push rod, a locking plate, and locking pins fixed to the left and right ends of the lifting support. A pair of locking pins are fixed to the locking plate, and the locking plate is fixed to the piston end of the electric push rod. The electric push rod is fixed to the locking support. Locking grooves are opened on both sides of the left and right ends of the bed board, and the locking pins can be inserted into the locking grooves to form a lock.

7. The transfer device for ultrasound contrast imaging of patients with abdominal injuries according to claim 6, characterized in that, Push limit plates are fixed on both sides of the middle part of the lifting support.

8. The transfer device for ultrasound contrast imaging of patients with abdominal injuries according to claim 7, characterized in that, The controller includes a housing and a base plate. A PCB circuit board and several second relays are fixed on the base plate. A second microcontroller, a second power module, an analog-to-digital converter (ADC), and a second digital-to-analog converter (DAC) are fixed on the PCB circuit board. The second relays are connected to the second microcontroller through the DAC. The second battery is connected to the second microcontroller through the ADC. The operation panel is connected to the ADC through wires. The lifting mechanism, the pushing mechanism, and the locking mechanism are all connected to the second relays.

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