ECMO system lifting device

Abstract

The embodiment of the application provides an ECMO system lifting device, which comprises a supporting device, a lifting device, a first guide device and a second guide device. The supporting device comprises a base and a vertical rod. The lifting device comprises a support and a lifting rod. The first guide device comprises a first adjusting mechanism and a first guide wheel set. The first guide wheel set comprises a first guide wheel and a second guide wheel. The first adjusting mechanism can relatively move the first guide wheel and the second guide wheel in a first direction, so that the circumferential surfaces of the first guide wheel and the second guide wheel abut against the vertical rod respectively. The second guide device comprises a second adjusting mechanism and a second guide wheel set. The second guide wheel set comprises a third guide wheel and a fourth guide wheel, so that the circumferential surfaces of the third guide wheel and the fourth guide wheel abut against the vertical rod respectively. The first direction, the second direction and the length direction of the vertical rod are perpendicular to each other in pairs. The ECMO system lifting device in the application can solve the problem of stable and convenient lifting of the ECMO system in the prior art.

Description

Technical Field

[0001] The embodiments of this application belong to the field of medical devices, and in particular relate to a lifting device for an ECMO system. Background Technology

[0002] Extracorporeal membrane oxygenation (ECMO) is primarily used to provide continuous extracorporeal respiration and circulation for patients with severe cardiopulmonary failure, thus sustaining their lives. The core components of an ECMO system are the membrane lung (artificial lung) and the blood pump (artificial heart). During operation, the system draws blood from the patient's body through tubing, oxygenates it through the membrane lung, and then returns it to the body. In clinical use, because the blood pump needs to draw blood, it is usually positioned as low as possible from the patient's heart to ensure adequate blood flow. However, this makes it inconvenient for medical staff to operate the blood pump and membrane lung during pre-filling. Therefore, an adjustment mechanism is needed in the ECMO system to raise and lower the membrane lung and blood pump, improving the ease of operation during use.

[0003] When a normal patient lies in bed, the height of their heart from the ground is more than 0.5 meters. To ensure sufficient negative pressure drainage, the height adjustment should be at least 0.5 meters.

[0004] Meanwhile, patients using ECMO systems require frequent turning due to prolonged bed rest. This necessitates longer tubing connecting the blood pump and membrane lung to the patient. Increased tubing leads to increased circulatory resistance and priming volume, which is detrimental to patient care. Therefore, the height of the membrane lung and blood pump needs adjustment. During turning, the membrane lung and blood pump can be adjusted to a higher position and then lowered back to a lower position for continued operation. This requires a convenient and safe lifting device to ensure reliable operation by medical staff, preventing accidental adjustments or malfunctions that could cause the lifting device to rise or fall abnormally, potentially pulling on the tubing and injuring the patient.

[0005] In addition, since the blood pump uses magnetic coupling to transmit torque, its fixing device must be stable during operation and cannot shake violently. Otherwise, the internal rotor of the blood pump may be damaged or its lifespan may be reduced due to impact. Therefore, the lifting device must operate smoothly and not produce violent shaking. Summary of the Invention

[0006] To address or alleviate the issues of stability and ease of lifting / lowering in existing ECMO systems, this invention provides an ECMO system lifting / lowering device, comprising:

[0007] A support device, comprising a base and a vertical rod, wherein the base is disposed at the bottom of the vertical rod, the vertical rod is hollow to form a cavity, and the surface of the vertical rod is provided with an opening disposed along the axial direction of the vertical rod, the opening communicating with the cavity;

[0008] A lifting device, comprising a bracket and a lifting rod, wherein the lifting rod is disposed within the cavity, the bracket extends into the opening and is fixedly connected to the lifting rod, and the bracket rises and falls along with the lifting rod.

[0009] A first guiding device is disposed in the cavity and connected to the bracket. The first guiding device includes a first adjusting mechanism and a first guide wheel assembly. The first guide wheel assembly includes a first guide wheel and a second guide wheel. The first adjusting mechanism enables the first guide wheel and the second guide wheel to move relative to each other in a first direction so that the circumferential surfaces of the first guide wheel and the second guide wheel respectively abut against the upright.

[0010] The second guide device is disposed in the cavity and connected to the bracket. The second guide device includes a second adjustment mechanism and a second guide wheel group. The second guide wheel group includes a third guide wheel and a fourth guide wheel. The second adjustment mechanism enables the third guide wheel and the fourth guide wheel to move relative to each other in a second direction so that the circumferential surfaces of the third guide wheel and the fourth guide wheel respectively abut against the upright.

[0011] The first direction, the second direction, and the length direction of the pole are all perpendicular to each other.

[0012] In a preferred embodiment of this application, the first adjustment mechanism and / or the second adjustment mechanism include an elastic element, which causes the first guide wheel and the second guide wheel to move relative to each other in a first direction and / or the third guide wheel and the fourth guide wheel to move relative to each other in a second direction.

[0013] As a preferred embodiment of this application, the opening can be passed through along the first direction. The first adjustment mechanism includes a first adjustment frame and a first screw. The first guide wheel is disposed on the bracket and always abuts against the upright. The second guide wheel is disposed on the first adjustment frame. The first adjustment frame is slidably connected to the bracket through the first screw. Rotating the first screw can change the distance between the first adjustment frame and the bracket in the first direction.

[0014] The second adjustment mechanism includes a second adjustment frame, a second screw, and a slider sleeved on the second screw. The second adjustment frame is slidably connected to the bracket. The second adjustment frame is provided with the third guide wheel, and the bracket is provided with the fourth guide wheel that is always in contact with the upright. The slider is provided with a first inclined surface, and the adjustment frame is provided with a second inclined surface corresponding to the first inclined surface. Rotating the second screw can move the slider and push the second adjustment frame to move in a second direction.

[0015] At least one end of the first screw and the second screw is exposed in the opening.

[0016] In a preferred embodiment of this application, the lifting rods are provided in multiple manner, and the multiple lifting rods are stacked together so that the total lifting stroke of the ECMO system lifting device is the sum of the strokes of the multiple lifting rods.

[0017] In a preferred embodiment of this application, the lifting device further includes a fixing frame, which is used to fix two adjacent lifting rods.

[0018] As a preferred embodiment of this application, a safety braking device is also included. The safety braking device is disposed in the cavity and fixedly connected to the bracket. The safety braking device can abut against the upright to prevent the lifting rod from rising or falling.

[0019] As a preferred embodiment of this application, it also includes a control device capable of unlocking the safety braking device to separate the safety braking device from the pole.

[0020] In a preferred embodiment of this application, the control device can also be linked to the lifting rod. When the control device controls the safety braking device to separate from the upright, the lifting rod begins to extend.

[0021] In a preferred embodiment of this application, the control device is fixedly mounted on the upright, and the control device includes a gripping member. Moving the gripping member simultaneously links the lifting rod and the safety braking device.

[0022] As a preferred embodiment of this application, it also includes a support platform, which is disposed outside the upright and fixedly connected to the bracket.

[0023] Compared with existing technologies, the ECMO system lifting device of this invention has a first guide device and a second guide device, and the lifting device, the first guide device, and the second guide device are all set in the cavity of the upright, with an opening only on the surface of the upright along the axial direction of the upright. Therefore, the ECMO system lifting device of this invention is safe, and parts will not fly out and injure people due to malfunction of the lifting device, the first guide device, and the second guide device. Furthermore, because the first guide device, the second guide device, and the upright are arranged perpendicularly to each other in the length direction, the first guide device and the second guide device can ensure that the support remains stable when pushed up and down by the lifting rod. The lifting rod extends and lowers automatically, avoiding excessive operation by medical personnel. Therefore, implementing the ECMO system lifting device of this invention can solve the problems of stable and convenient lifting of ECMO systems in existing technologies. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. Some specific embodiments of this application will be described in detail below with reference to the accompanying drawings in an exemplary and non-limiting manner. The same reference numerals in the drawings designate the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0025] Support device-10; Base-110; Upright pole-120; Cavity-1110; Opening-1120; Lifting device-20; Bracket-210; Lifting rod-220; First guide device-30; First guide wheel assembly-320; First guide wheel-3210; Second guide wheel-3220; Second guide device-40; Second guide frame-410; Second guide wheel assembly-430; Third guide wheel-4310; Fourth guide wheel-4320; First adjusting frame-3110; First screw-3120; Second adjusting frame-4210; Second screw-4220; Slider-4230; Fixing frame-230; Safety braking device-50; Control device-60; Gripper-610; Support platform-70; Elastic element-80.

[0026] Figure 1 A schematic diagram of the overall structure of an ECMO system lifting device according to an embodiment of the present invention is shown;

[0027] Figure 2 An exploded view of the lifting device of an ECMO system according to an embodiment of the present invention is shown.

[0028] Figure 3 This invention illustrates a rear view of the structure of an ECMO system lifting device after the support device has been removed, according to an embodiment of the invention.

[0029] Figure 4 This invention shows a rear view of the structure of an ECMO system lifting device after the support device has been removed, according to another embodiment of the invention.

[0030] Figure 5 It shows Figure 4 A magnified view of a section at point A in the middle;

[0031] Figure 6 A cross-sectional schematic diagram of an ECMO system lifting device at the first guide device is shown in an embodiment of the present invention.

[0032] Figure 7 A cross-sectional schematic diagram of an ECMO system lifting device at the second guide device is shown in an embodiment of the present invention;

[0033] Figure 8 This diagram illustrates the structure of the lifting rod in the first assembly state according to an embodiment of the present invention.

[0034] Figure 9 A structural schematic diagram of the second assembly state of the lifting rod in an embodiment of the present invention is shown;

[0035] Figure 10 A structural schematic diagram of the third assembly state of the lifting rod in an embodiment of the present invention is shown. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0037] To address the issues of stability and ease of deployment in existing ECMO systems, please refer to... Figures 1-3 The present invention provides an ECMO system lifting device 20, comprising:

[0038] The support device 10 includes a base 110 and a vertical rod 120. The base 110 is disposed at the bottom of the vertical rod 120. The vertical rod 120 is hollow to form a cavity 1110, and the surface of the vertical rod 120 is provided with an opening 1120 arranged along the axial direction of the vertical rod 120. The opening 1120 communicates with the cavity 1110.

[0039] The lifting device 20 includes a bracket 210 and a lifting rod 220. The lifting rod 220 is disposed in the cavity 1110. The bracket 210 extends into the opening 1120 and is fixedly connected to the lifting rod 220. The bracket 210 rises and falls along with the lifting rod 220.

[0040] A first guide device 30 is disposed in the cavity 1110 and connected to the bracket 210. The first guide device 30 includes a first adjustment mechanism and a first guide wheel assembly (not shown in the figure). The first guide wheel assembly (not shown in the figure) includes a first guide wheel 3210 and a second guide wheel 3220. The first adjustment mechanism (not shown in the figure) enables the first guide wheel 3210 and the second guide wheel 3220 to move relative to each other in a first direction so that the circumferential surfaces of the first guide wheel 3210 and the second guide wheel 3220 respectively abut against the upright 120.

[0041] The second guide device 40 is disposed in the cavity 1110 and connected to the bracket 210. The second guide device 40 includes a second adjustment mechanism and a second guide wheel group (not shown in the figure). The second guide wheel group (not shown in the figure) includes a third guide wheel 4310 and a fourth guide wheel 4320. The second adjustment mechanism (not shown in the figure) enables the third guide wheel 4310 and the fourth guide wheel 4320 to move relative to each other in a second direction so that the circumferential surfaces of the third guide wheel 4310 and the fourth guide wheel 4320 respectively abut against the upright 120.

[0042] The first direction, the second direction, and the length direction of the pole 120 are all perpendicular to each other.

[0043] Compared with the prior art, the ECMO system lifting device 20 of the present invention has a first guide device 30 and a second guide device 40, and the lifting device 20, the first guide device 30 and the second guide device 40 are all set in the cavity 1110 of the upright 120, with an opening 1120 provided only on the surface of the upright 120 along the axial direction of the upright 120. Therefore, the ECMO system lifting device 20 of the present invention is safe, and parts will not fly off and injure people due to malfunction of the lifting device 20, the first guide device 30 and the second guide device 40. Furthermore, because the first guide device 30, the second guide device 40 and the upright 120 are arranged perpendicularly to each other in the length direction, the first guide device 30 and the second guide device 40 can ensure that the support 210 remains stable when pushed up and down by the lifting rod 220. The lifting rod 220 extends and descends automatically, avoiding excessive operation by medical personnel. Therefore, implementing the ECMO system lifting device 20 of the present invention can solve the problem of stable and convenient lifting of the ECMO system in the prior art.

[0044] Generally, the support device 10 includes a base 110 and a vertical pole 120, wherein the vertical pole 120 is typically made of a single piece of metal. Due to considerations of mass production, the dimensions of the vertical pole 120 cannot be made uniform. The ECMO system lifting device 20 is a precision and important medical device, and it must maintain stable lifting; therefore, it is equipped with guide devices to ensure stability during lifting. The first guide device 30 and the second guide device 40 respectively ensure the stability of the lifting device 20 on a single plane; their combined effect ensures that the lifting device 20 can only move along the length of the vertical pole 120.

[0045] In this embodiment, the bracket 210 has two main functions. First, it is used for mounting external medical devices to enable the raising and lowering of these devices. Second, the bracket 210 is used to mount the first guide device 30 and the second guide device 40.

[0046] It should be noted that in the first guide device 30, there may be multiple sets of first guide wheels (not shown in the figure), arranged along the length of the upright 120. The first guide wheel set (not shown in the figure) includes a first guide wheel 3210 and a second guide wheel 3220, wherein a first adjustment mechanism enables the first guide wheel 3210 and the second guide wheel 3220 to move relative to each other in a first direction. That is, adjusting the distance between the first guide wheel 3210 and the second guide wheel 3220, so that the first guide wheel 3210 and the second guide wheel 3220 respectively abut against the inner wall of the upright 120, ultimately realizing the upper limit lifting device 20 in the first direction.

[0047] In the second guide device 40, there may be multiple sets of second guide wheels (not shown) arranged along the length of the upright 120. The second guide wheel set (not shown) includes a third guide wheel 4310 and a fourth guide wheel 4320, wherein a second adjustment mechanism enables the third guide wheel 4310 and the fourth guide wheel 4320 to move relative to each other in the second direction. That is, adjusting the distance between the third guide wheel 4310 and the fourth guide wheel 4320 allows them to abut against the inner wall of the upright 120, ultimately achieving the upper limit lifting device 20 in the second direction.

[0048] The first guide wheel group (not shown) and the second guide wheel group (not shown) are generally arranged at intervals. In some cases, the first guide device 30 and the second guide device 40 can be modularized to facilitate mass production and assembly.

[0049] In a more preferred embodiment, please refer to Figure 4 and Figure 5The first adjustment mechanism and / or the second adjustment mechanism include an elastic element 80, which causes the first guide wheel 3210 and the second guide wheel 3220 to move relative to each other in a first direction and / or the third guide wheel 4310 and the fourth guide wheel 4320 to move relative to each other in a second direction.

[0050] The first adjustment mechanism (not shown) and the second adjustment mechanism (not shown) can also adjust the distance between the guide wheels in other ways. The relative movement between the first guide wheel 3210 and the second guide wheel 3220 can be that the first guide wheel 3210 and the second guide wheel 3220 move simultaneously, or one of them is fixed and the other moves. Correspondingly, the third guide wheel 4310 and the fourth guide wheel 4320 have the same movement relationship.

[0051] In this embodiment, the elastic element 80 is generally disposed between the first guide wheel 3210 and the second guide wheel 3220, or between the third guide wheel 4310 and the fourth guide wheel 4320, or both. The elastic element is preferably a spring, and the spring tension causes the two connected guide wheels to abut against the inner wall of the upright 120.

[0052] In a more preferred embodiment, please refer to Figures 3-5 The first adjustment mechanism includes a first adjustment frame 3110 and a first screw 3120. A first guide wheel 3210 is mounted on the bracket 210 and always abuts against the upright 120. A second guide wheel 3220 is mounted on the first adjustment frame 3110. The first adjustment frame 3110 is slidably connected to the bracket 210 through the first screw 3120. Rotating the first screw 3120 can change the distance between the first adjustment frame 3110 and the bracket 210 in the first direction.

[0053] The second adjustment mechanism includes a second adjustment frame 4210, a second screw 4220, and a slider 4230 sleeved on the second screw 4220. The second adjustment frame 4210 is slidably connected to the support 210. The second adjustment frame 4210 is provided with a third guide wheel 4310. The support 210 is provided with a fourth guide wheel 4320 that is always in contact with the upright 120. The slider 4230 is provided with a first inclined surface. The adjustment frame is provided with a second inclined surface corresponding to the first inclined surface. Rotating the second screw 4220 can move the slider 4230 and push the second adjustment frame 4210 to move in the second direction.

[0054] At least one end of the first screw 3120 and the second screw 4220 is exposed in the opening 1120.

[0055] In this embodiment, the first adjustment mechanism is used to adjust the distance between the first guide wheel 3210 and the second guide wheel 3220, and the second adjustment mechanism is used to adjust the distance between the third guide wheel 4310 and the fourth guide wheel 4320. Generally, the ECMO system lifting device 20 in this invention undergoes a trial run before leaving the factory to ensure that the ECMO system lifting device 20 in this invention can lift and lower smoothly.

[0056] The first adjustment mechanism (not shown) includes a first adjustment frame 3110 and a first screw 3120. The second guide wheel 3220 is not directly connected to the bracket 210, but is connected to the bracket 210 through the first adjustment frame 3110. Therefore, the first guide wheel 3210 and the second guide wheel 3220 can move in a first direction so that the circumferential surfaces of the first guide wheel 3210 and the second guide wheel 3220 abut against the inner wall of the upright 120. The first screw 3120, the first adjustment frame 3110, and the bracket 210 are equivalent to a lead screw structure. The first direction allows passage through the opening 1120, ensuring that the adjustment end of the first screw 3120 can be exposed in the opening 1120 for easy operation by production personnel.

[0057] The second adjustment mechanism (not shown) includes a second adjustment frame 4210, a second screw 4220, and a slider 4230 sleeved on the second screw 4220. The second screw 4220, slider 4230, and bracket 210 also function as a lead screw structure. However, this only allows the second screw 4220 to be positioned along the second direction, which necessitates an additional opening 1120 on the upright 120.

[0058] By adjusting the second adjustment bracket 4210 and the slider 4230 to make a rotation, the second screw 4220 can be set in the first direction, while ensuring that the distance between the third guide wheel 4310 and the fourth guide wheel 4320 in the second direction can be changed.

[0059] Specifically, the slider 4230 has a first inclined surface, and the second adjusting frame 4210 has a second inclined surface. The first and second inclined surfaces abut against each other and can slide relative to each other. When the second screw 4220 is rotated, the slider 4230 moves along the length of the second screw 4220, and the first inclined surface presses against the second inclined surface. Because the second adjusting frame 4210 cannot move in the first direction, it is pressed by the first inclined surface, causing the second adjusting frame 4210 to drive the third guide wheel 4310 to move in the second direction.

[0060] Generally speaking, before factory calibration, the fourth guide wheel 4320 and the first guide wheel 3210 will be pre-attached to the inner wall of the upright 120.

[0061] In a preferred embodiment, multiple lifting rods 220 are provided, and the multiple lifting rods 220 are stacked together so that the total lifting stroke of the ECMO system lifting device 20 is the sum of the strokes of the multiple lifting rods 220.

[0062] In this embodiment, the lifting rod 220 is generally a standard part. Sometimes a single lifting rod 220 cannot achieve a sufficient lifting distance. Therefore, multiple lifting rods 220 need to be stacked to ensure that the ECMO system lifting device 20 in this invention can have a sufficient lifting height.

[0063] In a preferred embodiment, the lifting device 20 further includes a fixing frame 230 for fixing two adjacent lifting rods 220.

[0064] In this embodiment, the fixing frame 230 is used to connect two adjacent lifting rods 220. Please refer to... Figure 6 A typical lifting boom 220 has a fixed rod and a telescopic rod, with the fixed rods of two lifting booms 220 being fixedly connected to each other. Please refer to [reference needed]. Figure 7 Connect the fixed pole and the telescopic pole end to end. Please refer to [the above instructions]. Figure 8 By means of a fixed bracket 230, the fixed rod of one lifting rod 220 is connected in parallel with the telescopic rod of another lifting rod 220, thereby avoiding the inability of the lifting device 20 to lower to a lower height.

[0065] In a more preferred embodiment, a safety braking device 50 is also included. The safety braking device 50 is disposed in the cavity 1110 and fixedly connected to the bracket 210. The safety braking device 50 can abut against the upright 120 to prevent the lifting rod 220 from rising or falling.

[0066] The safety brake device 50 is designed to ensure safety and prevent sudden medical accidents during treatment due to malfunctions of the lifting rod 220. Normally, the safety brake device 50 is fixedly installed on the lifting device 20 and always prevents the lifting rod 220 from rising or falling.

[0067] In a more preferred embodiment, a control device 60 is also included, which is capable of unlocking the safety brake device 50 to separate the safety brake device 50 from the pole 120.

[0068] When height adjustment is required, the safety brake device 50 needs to be unlocked. The control device 60 can separate the safety brake device 50 from the pole 120. The control device 60 can be electrically controlled or mechanically controlled, as long as it can control the safety brake device 50 to brake or unlock.

[0069] In a preferred embodiment, the control device 60 can also be linked to the pneumatic lifting rod. When the control device 60 controls the safety braking device 50 to separate from the pole 120, the pneumatic lifting rod begins to extend.

[0070] A pneumatic lifting rod is a common lifting device 20. When the safety braking device 50 separates from the upright 120, the pneumatic lifting rod can automatically rise and fall. Its principle is similar to that of an office chair. When an ECMO system is in place, the pneumatic lifting rod will be lowered under the gravity of the ECMO system; when the ECMO system is not in place, the pneumatic lifting rod will extend.

[0071] In a preferred embodiment, the control device 60 is fixedly mounted on the pole 120. The control device 60 includes a grip 610. Moving the grip 610 simultaneously activates the pneumatic lifting rod and the safety braking device 50.

[0072] In this embodiment, the grip 610 is linked to both the pneumatic lifting rod and the safety brake device 50. Therefore, after the grip 610 is moved, the safety brake device 50 is directly unlocked, and the pneumatic lifting rod also starts to work.

[0073] In a more preferred embodiment, a support platform 70 is also included, which is disposed outside the upright 120 and fixedly connected to the bracket 210.

[0074] The primary function of the support platform 70 is to support medical devices, providing a location for their installation. Specifically, the support platform 70 is mainly used to mount the membrane lung and blood pump in the ECMO system. The membrane lung and blood pump are important components of the ECMO system; the membrane lung is mainly used to supply oxygen to the blood, while the blood pump's function is to keep the blood flowing, similar to the pacing action of the heart.

[0075] The blood pump is located roughly where the heart is, so its height largely determines blood pressure levels. The raising and lowering of the support platform 70 adjusts the height of the blood pump, ultimately regulating blood pressure.

[0076] The first direction generally refers to the plane perpendicular to the opening at 1120°, and the second direction generally refers to the plane parallel to the opening at 1120°.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An ECMO system hoist apparatus, characterized by, The ECMO system comprises: a support device comprising a base and a vertical rod, the base being arranged at the bottom of the vertical rod, the vertical rod being hollow and formed with a cavity, and the surface of the vertical rod being provided with an opening arranged in the axial direction of the vertical rod, the opening being communicated with the cavity; a lifting device comprising a support and a lifting rod, the lifting rod being arranged in the cavity, the support extending into the opening and being fixedly connected with the lifting rod, the support being lifted along with the lifting rod; a first guide device arranged in the cavity and connected with the support, the first guide device comprising a first adjusting mechanism and a first guide wheel set, the first guide wheel set comprising a first guide wheel and a second guide wheel, the first adjusting mechanism being capable of moving the first guide wheel and the second guide wheel relative to each other in a first direction so that the peripheral surfaces of the first guide wheel and the second guide wheel abut against the vertical rod; a second guide device arranged in the cavity and connected with the support, the second guide device comprising a second adjusting mechanism and a second guide wheel set, the second guide wheel set comprising a third guide wheel and a fourth guide wheel, the second adjusting mechanism being capable of moving the third guide wheel and the fourth guide wheel relative to each other in a second direction so that the peripheral surfaces of the third guide wheel and the fourth guide wheel abut against the vertical rod; the first direction, the second direction and the length direction of the vertical rod are perpendicular to each other.

2. The ECMO system lifting device of claim 1, wherein, The first adjusting mechanism and / or the second adjusting mechanism comprises an elastic member, the elastic member enabling the first guide wheel and the second guide wheel to move relative to each other in the first direction and / or the third guide wheel and the fourth guide wheel to move relative to each other in the second direction.

3. The ECMO system lifting device of claim 1, wherein, The first adjusting mechanism comprises a first adjusting frame, a first screw, the first guide wheel being arranged on the support and always abutting against the vertical rod, the second guide wheel being arranged on the first adjusting frame, the first adjusting frame being slidably connected with the support through the first screw, and the distance between the first adjusting frame and the support in the first direction being changed by rotating the first screw. The second adjusting mechanism comprises a second adjusting frame, a second screw and a slider sleeved on the second screw, the second adjusting frame being slidably connected with the support, the third guide wheel being arranged on the second adjusting frame, the fourth guide wheel always abutting against the vertical rod being arranged on the support, the slider being provided with a first inclined surface, the adjusting frame being provided with a second inclined surface corresponding to the first inclined surface, and the second adjusting frame being moved in the second direction by rotating the second screw and moving the slider. At least one end of the first screw and the second screw is exposed to the opening.

4. The ECMO system lifting device of claim 3, wherein, The lifting rod is provided with a plurality of lifting rods, and the plurality of lifting rods are arranged in a stacked manner so that the total lifting stroke of the ECMO system lifting device is the sum of the respective strokes of the plurality of lifting rods.

5. The ECMO system lifting device of claim 4, wherein, The lifting device further comprises a fixing frame for fixedly connecting two adjacent lifting rods.

6. The ECMO system lift of claim 4, wherein, The safety brake device is arranged in the cavity and fixedly connected with the support, and can abut against the vertical rod to prevent the lifting rod from lifting.

7. The ECMO system lifting device of claim 5 or 6, wherein The control device can also unlock the safety brake device to separate the safety brake device from the vertical rod.

8. The ECMO system lift of claim 7, wherein, The control device can also drive the lifting rod, and when the control device controls the safety brake device to separate from the vertical rod, the lifting rod starts to extend.

9. The ECMO system lifting device of claim 8, wherein, The control device is fixedly arranged on the vertical rod, and comprises a holding member, and when the holding member is actuated, the lifting rod and the safety brake device are driven simultaneously.

10. The ECMO system lift of claim 1, wherein, The bearing table is arranged outside the vertical rod and fixedly connected with the support.

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