Electric hydraulic operating bed

Abstract

The invention relates to the technical field of operating beds, in particular to an electric hydraulic operating bed which comprises a base and a hydraulic adjusting component fixedly mounted at the top of the base. The bed body is composed of a back supporting plate, a hip supporting plate and a leg supporting plate which are hinged to one another and three mattresses which are fixedly installed on the tops of the back supporting plate, the hip supporting plate and the leg supporting plate respectively, and through holes are jointly formed between the back supporting plate, the hip supporting plate and the corresponding mattresses and between the leg supporting plate and the corresponding mattresses. The back of a patient is continuously ventilated through the first-stage ventilation assembly and the second-stage ventilation assembly, the situation that the part, making contact with the mattress for a long time, of the body of the patient is overheated and sweats due to lack of air circulation, and pressure sores or bedsores occur is avoided, and the patient is jacked up through the jacking and pulling block so that an enough gap can be formed between the body of the patient and the mattress; through the two-stage ventilation design, comprehensive ventilation of the body of the patient is achieved, and it is ensured that air can freely circulate in all parts of the body of the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of operating tables, and more specifically, it relates to an electric-hydraulic operating table. Background Art

[0002] An electric-hydraulic operating table is a highly automated and multi-functional medical device, which is widely used in various surgical procedures. It combines electric and hydraulic systems to achieve multi-directional adjustment of the operating table to meet different surgical needs and patient position adjustments.

[0003] In hip replacement, knee replacement, and complex spinal surgeries, patients need to maintain a specific position for a long time, and the surgical time is usually long. This easily causes the patient's back skin to be compressed for a long time, which is prone to skin breakage, infection and other problems. Therefore, it is necessary to slightly adjust the patient's position regularly to ventilate the patient's back without affecting the surgical operation.

[0004] In the prior art, for ventilating the patient's back, a ventilation mattress or a micro-gap ventilation system is generally added inside the mattress. The ventilation mattress will have built-in air channels or holes. For example, a surgical bed with high comfort disclosed in the Chinese invention patent with the publication number CN214180989U realizes the ventilation function by installing fans in the front and rear bed boards, and makes the air circulate inside the mattress through the built-in fan or air pump system. The micro-gap ventilation system creates a small gap between the mattress and the patient by setting a plurality of small air bags inside the mattress and periodically inflating and deflating the air bags to make the surface of the mattress produce small undulations. However, the above ventilation methods still have certain defects: 1. When using a ventilation mattress for ventilation, the patient's back is always in contact with the mattress, and the air circulation effect is poor, resulting in poor ventilation effect; 2. When using a micro-gap ventilation system, the air bags therein can usually only produce small undulations in specific areas and cannot lift multiple parts at the same time. Therefore, it is necessary to alternately inflate and deflate to achieve whole-body ventilation operation. Although the effect of creating a small gap and generating air circulation is improved compared with using a ventilation mattress, the ventilation effect still needs to be improved. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides an electric-hydraulic operating table, which includes a base and a hydraulic adjustment component fixedly installed on the top of the base. A bed body is fixedly installed on the top of the hydraulic adjustment component, and the bed body is composed of a back support plate, a hip support plate, a leg support plate that are hinged to each other and three mattresses fixedly installed on the tops of the back support plate, the hip support plate, and the leg support plate respectively. Through holes are jointly opened between the back support plate, the hip support plate, the leg support plate and the corresponding mattresses, and the through holes are of an up-and-down through structure.

[0006] A top-drawing switching unit and a self-switching overall ventilation unit are provided between the bed body and the base. The top-drawing switching unit includes a top-drawing component and a driving component for driving the top-drawing component. There are three top-drawing components and three driving components, which correspond to each other one by one. The three top-drawing components are respectively arranged in three through holes. The self-switching overall ventilation unit includes a primary ventilation component, a secondary ventilation component, two two-stage switching components, and a control component for controlling the two-stage switching components. The primary ventilation component and the secondary ventilation component are arranged opposite to each other front and back at the bottom of the bed body, and the two-stage switching components and the control component are located between the primary ventilation component and the secondary ventilation component.

[0007] The top-drawing component includes a top-drawing block slidably installed in the through hole and a top-drawing rod fixedly installed at the bottom of the top-drawing block and fixedly connected to the driving component. The three top-drawing blocks are respectively used to support the back, buttocks, and legs of the patient. The three top-drawing blocks are simultaneously connected to the secondary ventilation component, and the primary ventilation component is connected to the bed body.

[0008] Further, the driving component includes a cylinder fixedly installed at the bottom of the bed body and a driving plate fixedly installed at the output end of the cylinder. The top of the driving plate is fixedly connected to the bottom end of the corresponding top-drawing rod.

[0009] Further, the self-switching overall ventilation unit further includes a blower fixedly installed on the top of the base. An air inlet and an air outlet are provided on the left side of the blower, and a T-shaped shunt pipe is fixedly installed on the left side of the air outlet of the blower.

[0010] Further, the primary ventilation component includes an air outlet pipe 1 fixedly installed at the front end of the T-shaped shunt pipe and a connecting pipe 1 fixedly installed at the top end of the air outlet pipe 1. Folding hoses 1 are fixedly installed at both the left and right ends of the connecting pipe 1, and spray nozzles 1 are fixedly installed at the opposite ends of the folding hoses 1 and at the top of the connecting pipe 1.

[0011] Further, air cavities 1 are provided at the tops of the back support plate, the buttocks support plate, and the leg support plate. A plurality of air outlet holes 1 communicating with the corresponding air cavities 1 are provided at the top of the mattress. The three spray nozzles 1 are fixedly connected to the back support plate, the buttocks support plate, and the leg support plate from left to right respectively and communicate with the corresponding air cavities 1.

[0012] Further, the secondary ventilation component includes an air outlet pipe 2 fixedly installed at the rear end of the T-shaped shunt pipe and a connecting pipe 2 fixedly installed at the top end of the air outlet pipe 2. Folding hoses 2 are fixedly installed at both the left and right ends of the connecting pipe 2, and spray nozzles 2 are fixedly installed at the opposite ends of the folding hoses 2 and at the top of the connecting pipe 2.

[0013] Further, air cavities 2 are provided inside the top-drawing blocks, and a plurality of air outlet holes 2 fixedly communicating with the air cavities 2 are provided at the tops of the top-drawing blocks. The three spray nozzles 2 are fixedly connected to the corresponding top-drawing blocks respectively and communicate with the corresponding air cavities 2.

[0014] Further, two two-stage switching components are respectively fixedly installed between the corresponding ends of the second air outlet pipe and the T-shaped shunt pipe, and between the corresponding ends of the first air outlet pipe and the T-shaped shunt pipe, and the two two-stage switching components are centrosymmetric with the central axis between the front and rear ports of the T-shaped shunt pipe as the axis of symmetry.

[0015] Further, the two-stage switching component includes a splitter fixedly installed at the port of the T-shaped shunt pipe. A round hole and a cavity communicating with the round hole and the T-shaped shunt pipe are provided inside the splitter. A connecting sleeve is fixedly and communicatively installed on the splitter. A sliding rod is slidably connected inside the connecting sleeve. The sliding rod slidably penetrates the connecting sleeve, and a sealing plug matching the round hole is fixedly installed at one end of the sliding rod close to the round hole. The lengths of the front connecting sleeve and the sliding rod are greater than those of the rear connecting sleeve and the sliding rod.

[0016] Further, the control component includes a lifting rod and a lifting plate respectively fixedly installed on the front and rear sides of the driving plate located in the middle. A lifting plate matching the lifting rod is fixedly installed at the top end of the front sliding rod, and a lower pressing plate matching the lower pressing rod is fixedly installed at the bottom end of the rear sliding rod. A return spring is jointly installed between the lower pressing plate and the rear connecting sleeve, and the return spring covers the outside of the rear sliding rod.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention continuously ventilates the patient's back through the primary ventilation component and the secondary ventilation component, avoiding the situation that the parts of the patient's body in long-term contact with the mattress overheat and sweat due to lack of air circulation, resulting in pressure sores or bedsores. And the patient is lifted by the top-drawing block to form a sufficient gap between the patient's body and the mattress, completely exposing the patient's body to the air, thereby significantly improving air circulation. Subsequently, the top-drawing block can also be withdrawn from the through hole to allow air circulation in the parts of the patient's body that previously contacted the top-drawing block.

[0018] 2. The present invention realizes comprehensive ventilation of the patient's body through the design of two-stage ventilation, ensuring that air can freely circulate in all parts of the patient's body, thereby greatly improving the ventilation effect and ventilation efficiency, and reducing the proportion of ventilation time in the total surgical time.

[0019] 3. The present invention uses the stroke of driving the movement of the top-drawing block by the up-and-down movement of the driving plate to synchronously drive the control component to drive the self-switching component to automatically and coherently switch between the primary ventilation component and the secondary ventilation component. The entire switching process does not require manual intervention, improving the automation degree and integrated correlation degree of the system. Description of the Drawings

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0021] Figure 2It is a schematic perspective view of the two - stage switching component, connecting pipe, folding hose and nozzle part of the present invention.

[0022] Figure 3 It is a schematic perspective view of the second air chamber, second air outlet hole, top extraction block and fan part of the present invention.

[0023] Figure 4 It is a schematic perspective view of the lower pressing plate, return spring, T - shaped shunt pipe and round hole part of the present invention.

[0024] Figure 5 It is a schematic perspective view of the first air chamber, first air outlet hole, bed body, shunt body and first part of the air outlet pipe of the present invention.

[0025] Figure 6 It is a schematic perspective view of the T - shaped shunt pipe, shunt body, sealing plug, sliding rod and lifting plate part of the present invention.

[0026] In the figure: 1. Base; 2. Hydraulic adjustment component; 3. Bed body; 301. Back support plate; 302. Hip support plate; 303. Leg support plate; 304. Mattress; 4. Top extraction and switching unit; 5. Self - switching whole - body ventilation unit; 6. Through - hole; 401. Top extraction component; 402. Driving component; 4011. Top extraction rod; 4012. Top extraction block; 4021. Cylinder; 4022. Driving plate; 501. First - stage ventilation component; 502. Second - stage ventilation component; 503. Two - stage switching component; 504. Control component; 505. Fan; 506. T - shaped shunt pipe; 507. Return spring; 5011. First air outlet pipe; 5012. First connecting pipe; 5013. First folding hose; 5014. First nozzle; 5015. First air chamber; 5016. First air outlet hole; 5021. Second air outlet pipe; 5022. Second connecting pipe; 5023. Second folding hose; 5024. Second nozzle; 5025. Second air chamber; 5026. Second air outlet hole; 5031. Shunt body; 5032. Connecting sleeve; 5033. Sliding rod; 5034. Sealing plug; 5035. Round hole; 5041. Lifting rod; 5042. Lifting plate; 5043. Lower pressing rod; 5044. Lower pressing plate. Detailed implementation manners

[0027] Now, the subject matter described herein will be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed so that those skilled in the art can better understand and thus implement the subject matter described herein. The functions and arrangements of the elements discussed can be changed without departing from the scope of protection of the content of this specification. Each example can omit, substitute or add various processes or components as needed. Additionally, the features described for some examples can also be combined in other examples.

[0028] Refer to Figure 1 、Figure 2 , Figure 3 , Figure 5 and Figure 6 , an electro - hydraulic operating table, comprising a base 1 and a hydraulic regulating component 2 fixedly installed on the top of the base 1. The hydraulic regulating component 2 realizes the lifting and tilting actions of the bed body 3 through the internal hydraulic system. A bed body 3 is fixedly installed on the top of the hydraulic regulating component 2, which is composed of a back support plate 301, a hip support plate 302, a leg support plate 303 that are hinged to each other, and three mattresses 304 fixedly installed on the tops of the back support plate 301, the hip support plate 302, and the leg support plate 303 respectively. Through holes 6 are commonly opened between the back support plate 301, the hip support plate 302, the leg support plate 303 and the corresponding mattresses 304. The through holes 6 are of an up - and - down through - hole structure. A top - extraction switching unit 4 and a self - switching all - body ventilation unit 5 are provided between the bed body 3 and the base 1. The top - extraction switching unit 4 includes a top - extraction assembly 401 and a driving assembly 402 for driving the top - extraction assembly 401. There are three top - extraction assemblies 401 and three driving assemblies 402, which are arranged in one - to - one correspondence. The three top - extraction assemblies 401 are respectively arranged in the three through holes 6. The self - switching all - body ventilation unit 5 includes a primary ventilation assembly 501, a secondary ventilation assembly 502, two two - stage switching assemblies 503, and a control assembly 504 for controlling the two - stage switching assemblies 503. The primary ventilation assembly 501 and the secondary ventilation assembly 502 are arranged opposite to each other front - to - back at the bottom of the bed body 3. The two - stage switching assemblies 503 and the control assembly 504 are located between the primary ventilation assembly 501 and the secondary ventilation assembly 502.

[0029] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the top - extraction assembly 401 includes a top - extraction block 4012 slidably installed in the through hole 6 and a top - extraction rod 4011 fixedly installed at the bottom of the top - extraction block 4012 and fixedly connected to the driving assembly 402. The three top - extraction blocks 4012 are respectively used to support the back, hip, and legs of the patient. The three top - extraction blocks 4012 are simultaneously connected to the secondary ventilation assembly 502. The primary ventilation assembly 501 is connected to the bed body 3. The top surface of the top - extraction block 4012 is made of soft silicone material to reduce the discomfort of the patient lying for a long time and during lifting. The self - switching all - body ventilation unit 5 further includes a blower 505 fixedly installed on the top of the base 1. An air inlet and an air outlet are provided on the left side of the blower 505. A T - shaped shunt pipe 506 is fixedly installed on the left side of the air outlet of the blower 505.

[0030] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, the driving component 402 includes a cylinder 4021 fixedly installed at the bottom of the bed body 3 and a driving plate 4022 fixedly installed at the output end of the cylinder 4021. The top of the driving plate 4022 is fixedly connected to the bottom end of the corresponding top extraction rod 4011.

[0031] During specific use, in the initial state, the top extraction block 4012 is located inside the through hole 6 and the top surface height is flush with the top surface of the mattress 304. During complex surgeries such as hip replacement and knee replacement, when the patient's back is in contact with the mattress 304 for a long time and ventilation of the patient's back is required, the cylinder 4021 is started. The output end of the cylinder 4021 contracts, driving the driving plate 4022 to move upward. Thus, the top extraction block 4012 is pushed upward through the top extraction rod 4011, causing the three top extraction blocks 4012 supporting the patient's back, buttocks, and legs to synchronously lift the patient upward until a small distance away from the mattress 304. At the same time, during the upward movement of the driving plate 4022 corresponding to the buttocks, it will drive the control component 504 to drive the two-stage switching component 503 to move, making the primary ventilation component 501 unobstructed and starting the fan 505. External air is sent into the primary ventilation component 501 through the air inlet and ejected through the air outlet to continuously ventilate the patient's body, avoiding skin problems such as pressure sores or bedsores caused by overheating and sweating in the areas where the patient's body is in contact with the mattress 304 for a long time. And by lifting the patient with the top extraction block 4012, a certain gap is formed between the patient's body and the mattress 304, thereby significantly improving air circulation, reducing local overheating and sweat accumulation, and thus achieving the effect of primary ventilation.

[0032] After the primary ventilation is completed, the control cylinder 4021 is started to push the driving plate 4022 downward, thereby driving the top extraction block 4012 to move downward through the top extraction rod 4011 to make the patient re-contact the mattress 304. At the same time, the primary ventilation component 501 is closed. Then, as the output end of the cylinder 4021 continues to push, it will drive the top extraction block 4012 to be pulled out downward from the through hole 6. At this time, the part of the patient that was previously in contact with the top extraction block 4012 will be aligned with the through hole 6, and the extraction of the top extraction block 4012 from the through hole 6 can make the inside of the through hole 6 communicate with the outside air. At the same time, the downward movement of the output end of the cylinder 4021 to push the driving plate 4022 will also drive the control component 504 to drive the two-stage switching component 503 to control the secondary ventilation component 502 to be unobstructed. At this time, the air inlet will send external air into the secondary ventilation component 502 through the air outlet and eject it to ventilate the position of the patient's body aligned with the through hole 6, achieving the effect of secondary ventilation; thus, through the design of two-stage ventilation, comprehensive ventilation of the patient's body is realized, ensuring that air can freely circulate in all parts of the patient's body, and greatly improving the ventilation effect and ventilation efficiency.

[0033] After the two-stage ventilation is completed, the output end of the cylinder 4021 contracts to drive the driving plate 4022 to move upward, thereby pushing the top extraction block 4012 upward through the top extraction rod 4011 and returning it to the through hole 6 to be flush with the mattress 304 again. At the same time, it will also drive the control assembly 504 to drive the two-stage switching assembly 503 to control the closing of the secondary ventilation assembly 502, and finally turn off the fan 505.

[0034] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 , the primary ventilation assembly 501 includes an air outlet pipe one 5011 fixedly installed at the front end of the T-shaped shunt pipe 506 and a connecting pipe one 5012 fixedly installed at the top end of the air outlet pipe one 5011. Folding hoses one 5013 are fixedly installed at both the left and right ends of the connecting pipe one 5012. Spray nozzles one 5014 are fixedly installed at both the opposite ends of the folding hoses one 5013 and the top of the connecting pipe one 5012. Air cavities one 5015 are provided at the tops of the back support plate 301, the hip support plate 302, and the leg support plate 303. A number of air outlet holes one 5016 communicating with the corresponding air cavities one 5015 are provided at the top of the mattress 304. The three spray nozzles one 5014 are fixedly connected to the back support plate 301, the hip support plate 302, and the leg support plate 303 from left to right respectively and are in communication with the corresponding air cavities one 5015.

[0035] Refer to Figure 2 , Figure 3 and Figure 4 , the secondary ventilation assembly 502 includes an air outlet pipe two 5021 fixedly installed at the rear end of the T-shaped shunt pipe 506 and a connecting pipe two 5022 fixedly installed at the top end of the air outlet pipe two 5021. Folding hoses two 5023 are fixedly installed at both the left and right ends of the connecting pipe two 5022. Spray nozzles two 5024 are fixedly installed at both the opposite ends of the folding hoses two 5023 and the top of the connecting pipe two 5022. An air cavity two 5025 is provided inside the top extraction block 4012, and a number of air outlet holes two 5026 fixedly communicating with the air cavity two 5025 are provided at the top of the top extraction block 4012. The three spray nozzles two 5024 are fixedly connected to the corresponding top extraction blocks 4012 respectively and are in communication with the corresponding air cavities two 5025.

[0036] Refer to Figure 2 , Figure 3 , Figure 4 and Figure 6, two two-stage switching components 503 are respectively fixedly installed between the corresponding ends of the second air outlet pipe 5021 and the T-shaped shunt pipe 506, and between the corresponding ends of the first air outlet pipe 5011 and the T-shaped shunt pipe 506. The two two-stage switching components 503 are centrosymmetric with the center line between the front and rear ports of the T-shaped shunt pipe 506 as the axis of symmetry. The two-stage switching component 503 includes a splitter 5031 fixedly installed at the port of the T-shaped shunt pipe 506. A round hole 5035 and a cavity communicating with both the round hole 5035 and the T-shaped shunt pipe 506 are provided inside the splitter 5031. A connecting sleeve 5032 is fixedly and communicatively installed on the splitter 5031. A sliding rod 5033 is slidably connected inside the connecting sleeve 5032. The sliding rod 5033 slidably penetrates through the connecting sleeve 5032. A sealing plug 5034 matching the round hole 5035 is fixedly installed at one end of the sliding rod 5033 close to the round hole 5035. The lengths of the front connecting sleeve 5032 and the sliding rod 5033 are greater than those of the rear connecting sleeve 5032 and the sliding rod 5033.

[0037] Refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the control component 504 includes a lifting rod 5041 and a lifting plate 5042 respectively fixedly installed on the front and rear sides of the driving plate 4022 in the middle. A lifting plate 5042 matching the lifting rod 5041 is fixedly installed at the top of the front sliding rod 5033. A lower pressing plate 5044 matching the lower pressing rod 5043 is fixedly installed at the bottom of the rear sliding rod 5033. A return spring 507 is jointly installed between the lower pressing plate 5044 and the rear connecting sleeve 5032. The return spring 507 covers the outside of the rear sliding rod 5033.

[0038] During specific use, as the top extraction block 4012 lifts the patient, the lifting rod 5041 gradually approaches and finally lifts the lifting plate 5042, so that the front slide rod 5033 drives the front sealing plug 5034 to move upward and be pulled out from the front round hole 5035, thereby connecting the cavity in the front fluid divider 5031 with the round hole 5035 to the air outlet pipe 5011 and the T-shaped flow divider pipe 506. At this time, the blower 505 is started, and external air is sent into the air outlet pipe 5011 through the air inlet and then through the connecting pipe 5012, the air flow is distributed to the left and right folding hoses 5013 and the three nozzles 5014, and then air is sent into the three air cavities 5015 at the same time. Finally, the air flow uniformly sprays out from the air outlet holes 5016 densely distributed on the top of the mattress 304 in the air cavity 5015. The sprayed air flow can be evenly distributed on the patient's body, providing a continuous ventilation effect, avoiding overheating and sweating in the areas where the patient's body is in contact with the mattress 304 for a long time due to lack of air circulation, causing pressure sores or bedsores. And by lifting the patient with the top extraction block 4012, a sufficient gap is formed between the patient's body and the mattress 304, so that the air circulation can be significantly improved, local overheating and sweat accumulation can be reduced, and the effect of primary ventilation can be achieved.

[0039] As the driving plate 4022 drives the top extraction block 4012 to move downward, the patient comes into contact with the mattress 304 again. At the same time, during the downward movement of the driving plate 4022, the lifting rod 5041 is gradually driven to move downward, and the lifting plate 5042 also moves downward under the action of gravity and finally drives the front sealing plug 5034 to be inserted back into the front circular hole 5035 through the front sliding rod 5033, thereby closing the front fluid splitter 5031 and truncating the connection between the first air outlet pipe 5011 and the T-shaped flow dividing pipe 506. Then, the output end of the cylinder 4021 continues to push and drives the top extraction block 4012 to be pulled out downward from the through hole 6. At this time, the part of the patient that previously contacted the top extraction block 4012 will be aligned with the through hole 6, and the extraction of the top extraction block 4012 from the through hole 6 enables the inside of the through hole 6 to communicate with the outside air. At the same time, the downward movement of the output end of the cylinder 4021 to drive the driving plate 4022 downward will also drive the downward pressure rod 5043 to move downward. After the top extraction block 4012 is pulled out from the through hole 6, the continuous downward movement of the driving plate 4022 will continue to drive the downward pressure rod 5043 to move downward and squeeze the lower pressing plate 5044. The lower pressing plate 5044 moves downward and stretches the return spring 507, thereby driving the rear sealing plug 5034 to move downward through the rear sliding rod 5033 and being pulled out from the circular hole 5035 of the rear fluid splitter 5031, further enabling the rear fluid splitter 5031 to connect the second air outlet pipe 5021 and the T-shaped flow dividing pipe 506. Subsequently, the air outlet will send external air into the second air outlet pipe 5021, and then through the connecting pipe 5022, the folding hose 5023 and the three nozzles 5024, and send air into the three air cavities 5025 at the same time. Finally, the air flow evenly sprays out from the air outlet holes 5026 densely distributed on the top of the top extraction block 4012 in the air cavity 5025. The sprayed air flow enters the through hole 6 to ventilate the part of the patient's body aligned with the through hole 6, and thus realizes the overall ventilation of the patient's body through the two-stage ventilation design, ensuring that air can freely circulate in all parts of the patient's body.

[0040] While the top extraction rod 4011 pushes the top extraction block 4012 to move upward and return to be flush with the mattress 304 in the through hole 6, the corresponding driving plate 4022 will drive the downward pressure rod 5043 to move upward. As the downward pressure rod 5043 moves upward, the tensile force on the return spring 507 gradually decreases, thereby driving the lower pressing plate 5044 to reset, so that the rear sliding rod 5033 drives the rear sealing plug 5034 to move upward and be inserted back into the rear circular hole 5035, thereby closing the rear fluid splitter 5031 and truncating the connection between the second air outlet pipe 5021 and the T-shaped flow dividing pipe 506.

[0041] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly illustrating the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. An electric-hydraulic operating table, characterized in that, Comprising: A base and a hydraulic adjustment component fixedly installed on the top of the base; At the top of the hydraulic adjustment component, a bed body is fixedly installed, which consists of a back support plate, a hip support plate, and a leg support plate that are hinged to each other, and three mattresses fixedly installed on the tops of the back support plate, hip support plate, and leg support plate respectively. Through holes are jointly provided between the back support plate, hip support plate, leg support plate and the corresponding mattresses, and the through holes are of a vertically penetrating structure; A top extraction switching unit and a self-switching overall ventilation unit are provided between the bed body and the base. The top extraction switching unit includes a top extraction component and a driving component for driving the top extraction component. There are three top extraction components and driving components respectively, and they are in one-to-one correspondence. The three top extraction components are respectively arranged in the three through holes; The self-switching overall ventilation unit includes a primary ventilation component, a secondary ventilation component, two two-stage switching components, and a control component for controlling the two-stage switching components. The primary ventilation component and the secondary ventilation component are arranged opposite to each other front and back at the bottom of the bed body, and the two-stage switching components and the control component are located between the primary ventilation component and the secondary ventilation component; The top extraction component includes a top extraction block slidably installed in the through hole and a top extraction rod fixedly installed at the bottom of the top extraction block and fixedly connected to the driving component. The three top extraction blocks are respectively used to support the back, hip, and legs of the patient. The three top extraction blocks are simultaneously connected to the secondary ventilation component, and the primary ventilation component is connected to the bed body.

2. The electric hydraulic operating table according to claim 1, characterized in that, The driving component includes a cylinder fixedly installed at the bottom of the bed body and a driving plate fixedly installed at the output end of the cylinder. The top of the driving plate is fixedly connected to the bottom end of the corresponding top extraction rod.

3. An electric hydraulic operating table according to claim 1, characterized in that, The self-switching overall ventilation unit further includes a blower fixedly installed on the top of the base. An air inlet and an air outlet are provided on the left side of the blower, and a T-shaped shunt pipe is fixedly installed on the left side of the air outlet of the blower.

4. An electric hydraulic operating table according to claim 3, characterized in that, The primary ventilation component includes an air outlet pipe 1 fixedly installed at the front end of the T-shaped shunt pipe and a connecting pipe 1 fixedly installed at the top end of the air outlet pipe 1. Folding hoses 1 are fixedly installed at both the left and right ends of the connecting pipe 1, and spray nozzles 1 are fixedly installed at the opposite ends of the folding hoses 1 and at the top of the connecting pipe 1.

5. The electro-hydraulic operating table according to claim 4, wherein, Air cavities 1 are respectively provided at the tops of the back support plate, hip support plate, and leg support plate. A plurality of air outlet holes 1 communicating with the corresponding air cavities 1 are provided at the top of the mattress. The three spray nozzles 1 are fixedly connected to the back support plate, hip support plate, and leg support plate respectively from left to right and communicate with the corresponding air cavities 1.

6. An electric hydraulic operating table according to claim 3, wherein, The secondary ventilation component includes an air outlet pipe 2 fixedly installed at the rear end of the T-shaped shunt pipe and a connecting pipe 2 fixedly installed at the top end of the air outlet pipe 2. Folding hoses 2 are fixedly installed at both the left and right ends of the connecting pipe 2, and spray nozzles 2 are fixedly installed at the opposite ends of the folding hoses 2 and at the top of the connecting pipe 2.

7. The electric hydraulic operating table according to claim 6, characterized in that, An air cavity 2 is provided inside the top extraction block, and a plurality of air outlet holes 2 fixedly communicating with the air cavity 2 are provided at the top of the top extraction block. The three spray nozzles 2 are fixedly connected to the corresponding top extraction blocks respectively and communicate with the corresponding air cavities 2.

8. The electric hydraulic operating table according to claim 6, wherein, The two two-stage switching components are respectively fixedly installed between the corresponding ends of the air outlet pipe 2 and the T-shaped shunt pipe, and between the corresponding ends of the air outlet pipe 1 and the T-shaped shunt pipe, and the two two-stage switching components are centrosymmetric with the center line between the front and rear two ports of the T-shaped shunt pipe as the axis of symmetry.

9. The electric hydraulic operating table according to claim 8, wherein, The two-stage switching component includes a fluid splitter fixedly installed at the port of the T-shaped flow splitter pipe. A round hole and a cavity communicating with the round hole and the T-shaped flow splitter pipe are provided inside the fluid splitter. A connecting sleeve is fixedly and communicatively installed on the fluid splitter. A sliding rod is slidably connected inside the connecting sleeve. The sliding rod slidably penetrates through the connecting sleeve, and a sealing plug matched with the round hole is fixedly installed at one end of the sliding rod close to the round hole. The lengths of the front connecting sleeve and the sliding rod are greater than those of the rear connecting sleeve and the sliding rod.

10. The electric hydraulic operating table according to claim 9, characterized in that, The control component includes a lifting rod and a lifting plate respectively and fixedly installed on the front and rear sides of the driving plate located in the middle. A lifting plate matched with the lifting rod is fixedly installed at the top end of the front sliding rod. A lower pressing plate matched with the lower pressing rod is fixedly installed at the bottom end of the rear sliding rod. A return spring is jointly installed between the lower pressing plate and the rear connecting sleeve. The return spring covers the outside of the rear sliding rod.

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