Cardiopulmonary bypass system

Abstract

The application discloses a cardiopulmonary bypass system, comprising: a consumable kit comprising a pre-charging device and an extracorporeal circulation line; and the control host is detachably connected with the consumable sleeve bag, the control host is further provided with a power output part, and after the consumable sleeve bag and the control host are assembled, the power output part is in butt joint with the pre-filling device and can be used for controlling the pre-filling device to conduct pipeline pre-filling on the extracorporeal circulation pipeline. By arranging the pre-charging device in the consumable sleeve bag, the extracorporeal circulation pipeline can be directly pre-charged and is driven by the control host, automatic control over pipeline pre-charging of the extracorporeal circulation pipeline can be achieved, the operation procedures of operators are simplified, and the pre-charging efficiency and safety are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical equipment, and particularly relates to a cardiopulmonary bypass system. BACKGROUND

[0002] A cardiopulmonary bypass (CPB) system is generally composed of a control host, a centrifugal pump and a membrane oxygenator. The control host controls and monitors the operation of the cardiopulmonary bypass system, the centrifugal pump is used to circulate blood in and out of the body, and the membrane oxygenator is used to provide oxygen and exchange carbon dioxide in the blood discharged from the body. The centrifugal pump and the membrane oxygenator can be integrated in a consumable package. The pipeline pre-charging of the cardiopulmonary bypass (CPB) system is an important step in the extracorporeal circulation operation, which aims to ensure that there is no gas remaining in the pipeline, reduce the risk of gas embolism, and prepare for subsequent blood circulation. Therefore, how to realize effective pipeline pre-charging is a problem to be solved. CONTENT OF THE UTILITY MODEL

[0003] The application provides a cardiopulmonary bypass system to solve the technical problem of low pipeline pre-charging efficiency of the prior art.

[0004] To solve the above technical problem, one technical scheme adopted by the application is: a cardiopulmonary bypass system, comprising: a consumable package, comprising a pre-charging device and an extracorporeal circulation pipeline; a control host, which is detachably connected with the consumable package, the control host further has a power output, after the consumable package and the control host are assembled, the power output is docked with the pre-charging device, and the pre-charging device can be used to control the pre-charging of the extracorporeal circulation pipeline.

[0005] According to an embodiment of the application, the extracorporeal circulation pipeline has a first pipe end and a second pipe end arranged oppositely, the pre-charging device comprises: a pre-charging liquid bin, which stores pre-charging liquid, the pre-charging liquid bin is communicated with the first pipe end through a first pipeline; a recovery bin, which is communicated with the second pipe end through a second pipeline; a driving member, which is docked with the power output, and is used to change the internal pressure of the pre-charging liquid bin and / or the recovery bin, so as to drive the pre-charging liquid to enter the extracorporeal circulation pipeline and discharge the gas in the extracorporeal circulation pipeline.

[0006] According to an embodiment of the application, the first pipeline is communicated to the bottom of the pre-charging liquid bin; the driving member comprises: an air charging pipeline, which is communicated to the top of the pre-charging liquid bin, and is used to at least charge air into the pre-charging liquid bin to increase the internal air pressure of the pre-charging liquid bin; and an air extraction pipeline, which is communicated to the top of the recovery bin, and is used to at least extract the gas in the recovery bin to reduce the internal air pressure of the recovery bin.

[0007] According to an embodiment of the present application, the pre-filling device further comprises: a communication pipe, which communicates the pre-filling liquid tank and the recovery tank; a first valve, which is arranged on the first pipe to control the opening and closing of the first pipe; a second valve, which is arranged on the second pipe to control the opening and closing of the second pipe; and a communication valve, which is arranged on the communication pipe to control the opening and closing of the communication pipe.

[0008] According to an embodiment of the present application, the driving member comprises: a push plate, which is movably arranged in the pre-filling liquid tank in a first direction, and the pre-filling liquid is located between the push plate and the first pipe; and a pushing mechanism, which is connected to the push plate and pushes the push plate to move in the first direction to push the pre-filling liquid to flow to the first pipe; and the pushing mechanism is used to be connected to the power output member.

[0009] According to an embodiment of the present application, the outer periphery of the push plate is attached to the inner wall of the pre-filling liquid tank.

[0010] According to an embodiment of the present application, a pre-filling bag is arranged in the pre-filling liquid tank, the pre-filling liquid is filled in the pre-filling bag, the pre-filling bag is communicated with the first pipe, and the push plate is located outside the pre-filling bag to slide and extrude the pre-filling bag.

[0011] According to an embodiment of the present application, the pushing mechanism comprises: a push rod, which extends into the pre-filling liquid tank and is connected to the push plate to drive the push plate to move; a linear driving member, which is arranged outside the pre-filling liquid tank and is fixed opposite to the push rod; and a rotary driving member, which is rotatably arranged outside the pre-filling liquid tank, is used to be connected to the power output member, and drives the linear driving member to move in the first direction.

[0012] According to an embodiment of the present application, the extracorporeal circulation pipeline further comprises a centrifugal pump and a membrane oxygenator between the first pipe end and the second pipe end, and the pre-filling liquid is pre-filled to the centrifugal pump and enters the membrane oxygenator to realize pre-filling and exhaust.

[0013] According to an embodiment of the present application, the heart-lung bypass system further comprises a trolley assembly, which comprises: a support frame, on which the control host is laminated; a trolley chassis, which is arranged at the bottom of the support frame and is provided with universal casters at the bottom; and a trolley stand, which is arranged on the trolley chassis, and when the control host and the consumable sleeve are laminated and placed on the support frame, the side of the control host and the consumable sleeve abuts against the trolley stand, and the trolley stand is provided with a trolley handle.

[0014] The beneficial effects of the present application are: by setting the pre-filling device in the consumable kit, the extracorporeal circulation pipeline can be directly pre-filled, and the control host can drive to realize the automatic control of the pipeline pre-filling of the extracorporeal circulation pipeline, simplify the operation process of the operator, and improve the pre-filling efficiency and safety. The whole pre-filling process is completed by the system itself, which saves the traditional complicated manual pre-filling process and pipeline docking of the heart-lung bypass system, reduces the possibility of human error and the risk of insufficient exhaust during the pre-filling process, and single pre-filling can completely avoid re-pre-filling, so that the heart-lung bypass system can be applied in time and effectively. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a structural schematic diagram of a heart-lung bypass system according to an embodiment of the present application;

[0017] Figure 2 is a structural schematic diagram of a consumable kit of a heart-lung bypass system according to an embodiment of the present application;

[0018] Figure 3 is a structural schematic diagram of the internal structure of a consumable kit of a heart-lung bypass system according to an embodiment of the present application;

[0019] Figure 4 is a partial structural schematic diagram of a pre-filling device of a heart-lung bypass system according to an embodiment of the present application;

[0020] Figure 5 is a partial perspective structural schematic diagram of a pre-filling device of a heart-lung bypass system according to another embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. It can be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. In addition, it should be noted that only the parts related to the present application are shown in the drawings, not all the structures. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood that embodiments described herein can be combined with each other, unless otherwise indicated.

[0023] Cardiopulmonary bypass system generally consists of three parts: control host, centrifugal pump and membrane oxygenator. The control host controls and monitors the operation of the cardiopulmonary bypass system, the centrifugal pump is used to circulate blood in and out of the body, and the membrane oxygenator is used to provide oxygen and exchange carbon dioxide in the blood discharged from the body. The centrifugal pump and the membrane oxygenator can be integrated into a consumable kit. In clinical use, the control host in the cardiopulmonary bypass system is a very critical component, which needs to drive the normal operation of the centrifugal pump, monitor the parameters such as the centrifugal pump speed, extracorporeal circuit flow, extracorporeal circuit pressure, extracorporeal circuit temperature, and blood gas indexes of arteriovenous in the cardiopulmonary bypass system, and issue an alarm and take safety protection action when the system parameters are abnormal.

[0024] In addition, the circuit priming of cardiopulmonary bypass (CPB) system is an important step in extracorporeal circulation surgery, which aims to ensure that there is no gas residue in the circuit, reduce the risk of gas embolism, and prepare for subsequent blood circulation. An embodiment of the present application provides a cardiopulmonary bypass system that can effectively prime the circuit.

[0025] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a cardiopulmonary bypass system according to an embodiment of the present application; Figure 2 is a structural schematic diagram of a consumable kit of a cardiopulmonary bypass system according to an embodiment of the present application.

[0026] An embodiment of the present application provides a heart-lung bypass system 10, which comprises a consumable package 100, a control host 200 and a trolley assembly 300. The control host 200 is configured to control the consumable package 100. The consumable package 100 is detachably connected to the control host 200, and the control host 200 is detachably connected to the trolley assembly 300. The consumable package 100 comprises a priming device 110 and an extracorporeal circulation pipeline 120. The control host 200 further has a power output (not shown in the figure). When the consumable package 100 and the control host 200 are relatively assembled, the power output is connected to the priming device 110, and can be used to control the priming device 110 to perform pipeline priming on the extracorporeal circulation pipeline 120. The control host 200 can also perform other basic control on the priming device 110 and the extracorporeal circulation pipeline 120. The consumable package 100 and the control host 200 can be sequentially installed on the trolley assembly 300, so as to realize the operation and convenient transfer of the heart-lung bypass system 10.

[0027] By arranging the priming device 110 in the consumable package 100, the extracorporeal circulation pipeline 120 can be directly primed, and the priming device 110 can be driven by the control host 200, so as to realize the automatic control of the pipeline priming on the extracorporeal circulation pipeline 120, simplify the operation process of the operator, and improve the priming efficiency and safety.

[0028] Please continue to refer to Figures 2 to 4 , Figure 3 is a schematic view of an internal structure of a consumable package of a heart-lung bypass system according to an embodiment of the present application; Figure 4 is a schematic view of a part of a priming device of a heart-lung bypass system according to an embodiment of the present application.

[0029] In some embodiments, the extracorporeal circulation pipeline 120 has a first pipeline end 121 and a second pipeline end 122 arranged oppositely. The priming device 110 comprises a priming liquid bin 111, a recovery bin 112 and a driving member 113. The priming liquid bin 111 stores priming liquid. The priming liquid bin 111 is connected to the first pipeline end 121 through a first pipeline 114. The recovery bin 112 is connected to the second pipeline end 122 through a second pipeline 115. When pipeline priming is needed to be performed on the extracorporeal circulation pipeline 120, the first pipeline end 121 in the consumable package 100 has been connected to the first pipeline 114, and the second pipeline end 122 has been connected to the second pipeline 115. The driving member 113 is connected to the power output, and is configured to change the internal pressure of the priming liquid bin 111 and / or the recovery bin 112, so as to drive the priming liquid to enter the extracorporeal circulation pipeline 120, and drive the gas in the extracorporeal circulation pipeline 120 to be discharged.

[0030] In some embodiments, the driving member 113 increases the pressure of the priming liquid in the priming liquid tank 111, drives the priming liquid in the priming liquid tank 111 to flow out through the first pipe 114 and enter the extracorporeal circulation pipeline 120 through the first pipe end 121. The priming liquid gradually wets the components such as the membrane oxygenator 126 and the centrifugal pump 123, and discharges the gas in the extracorporeal circulation pipeline 120; the priming liquid is discharged through the second pipe end 122 and enters the recovery tank 112 through the second pipe 115, thereby achieving the priming of the extracorporeal circulation pipeline 120. In addition, the recovery tank 112 can discharge excess gas to balance the gas pressure and ensure smooth flow of the priming liquid.

[0031] In other embodiments, the driving member 113 decreases the internal pressure of the recovery tank 112 and transmits the low pressure to the priming liquid tank 111 through the second pipe 115, the extracorporeal circulation pipeline 120 and the first pipe 114 in sequence, so as to suck the priming liquid in the priming liquid tank 111 into the extracorporeal circulation pipeline 120 through the first pipe 114. The priming liquid gradually wets the components such as the membrane oxygenator 126 and the centrifugal pump 123, and carries part of the gas to the recovery tank 112 through the second pipe 115, thereby achieving the priming of the extracorporeal circulation pipeline 120. In addition, the priming liquid tank 111 can supplement the gas to balance the gas pressure reduced by the discharge of the priming liquid, thereby ensuring the smooth flow of the priming liquid.

[0032] In yet other embodiments, the driving member 113 can increase the pressure of the priming liquid in the priming liquid tank 111 and simultaneously decrease the internal pressure of the recovery tank 112, so as to drive the priming liquid to enter the extracorporeal circulation pipeline 120 and achieve the pipeline priming.

[0033] In some embodiments, the driving member 113 can also decrease the pressure of the priming liquid tank 111 and increase the pressure of the recovery tank 112 according to needs, so as to achieve the flow of the priming liquid from the recovery tank 112 into the extracorporeal circulation pipeline 120 and achieve the discharge of the gas bubbles. On the one hand, by changing the flow direction of the priming liquid, the residual gas in the extracorporeal circulation pipeline 120 can also be back-flushed, thereby avoiding the residual gas bubbles and improving the discharge efficiency and effect of the gas bubbles. On the other hand, the priming liquid can flow from the priming liquid tank 111 into the extracorporeal circulation pipeline 120 for pipeline priming, and also can flow from the recovery tank 112 into the extracorporeal circulation pipeline 120 for pipeline priming, thereby effectively recycling the priming liquid in the priming device 110, and further reducing the storage amount of the priming liquid and the overall volume of the priming device 110.

[0034] The application can realize effective and controllable pipeline pre-charging by controlling the power output of the host 200 to automatically drive the driving part 113, changing the internal pressure of the pre-charging liquid tank 111 and / or the recovery tank 112 to drive the pre-charging liquid into the extracorporeal circulation pipeline 120 and discharge the gas in the extracorporeal circulation pipeline 120, and the gas discharge efficiency is high, which meets the use demand in emergency. In addition, by controlling the host 200 to control the change speed of the pressure in the pre-charging process, the flow rate of the pre-charging liquid can also be changed to achieve better pre-charging efficiency. The host 200 can slow down the pre-charging liquid flow rate in the initial stage of pipeline pre-charging, so that the pre-charging liquid can first fully wet the components such as the membrane oxygenator 126 and the centrifugal pump 123, and the release of micro-bubbles caused by the "dry membrane effect" is avoided. Subsequently, the pressure can be gradually increased, and the pressure in the whole pipeline can be changed intermittently during the pre-charging process to generate alternating high and low pressure waves and form pulsed flow, so as to fully discharge the bubbles in the extracorporeal circulation pipeline 120.

[0035] Specifically, the pre-charging liquid can comprehensively consider the individual condition of the patient, the type of operation and the characteristics of the pre-charging liquid and other factors to select a suitable solution, such as crystalloid solution, colloid solution or blood products.

[0036] Specifically, the first pipe end 121 can be a venous end, and the second pipe end 122 can be an arterial end.

[0037] It should be noted that the consumable kit 100 includes a shell 130, and the extracorporeal circulation pipeline 120 further includes components such as the membrane oxygenator 126, the magnetic suspension pump head, the blood sampling tube, the temperature sensor 124, the pressure sensor 125 and the membrane oxygenator 126 between the first pipe end 121 and the second pipe end 122. The components are arranged in the shell 130 and are pre-assembled, so that the consumable kit 100 is designed as an integrated design, the docking steps between the components are reduced, the connection between the consumable kit 100 and the control host 200 is facilitated, and then the plug-and-play is realized, the risk of falling off of the external flow / pressure sensor during the use of the heart-lung bypass system is reduced, and the heart-lung bypass system is safer and more convenient. The pre-charging liquid is pre-charged into the centrifugal pump 123, and then enters the membrane oxygenator 126 to realize pre-charging and gas discharge, and other gases in the pipeline can also be carried by the pre-charging liquid and discharged to the recovery tank 112. The whole pre-charging process is completed by the system itself, which saves the complicated manual pre-charging process and pipeline docking of the traditional heart-lung bypass system 10, reduces the possibility of human error and the risk of insufficient gas discharge during the pre-charging process, and single pre-charging can completely avoid re-pre-charging, so that the heart-lung bypass system 10 can be applied in time and effectively.

[0038] Please continue to refer to Figure 4 In some embodiments, changing the internal pressure of the pre-charging liquid tank 111 and / or the recovery tank 112 can be realized by inflating the pre-charging liquid tank 111 and / or deflating the recovery tank 112.

[0039] The first pipeline 114 is connected to the bottom of the pre-liquid storage bin 111. The driving member 113 includes an air charging pipeline 1131 connected to the top of the pre-liquid storage bin 111, which is used at least for charging air to the pre-liquid storage bin 111 to increase the internal air pressure of the pre-liquid storage bin 111. The driving member 113 further includes an air extraction pipeline 1132 connected to the top of the recovery bin 112, which is used at least for extracting air in the recovery bin 112 to reduce the internal air pressure of the recovery bin 112.

[0040] The air pressure in the pre-liquid storage bin 111 can be increased by using the air charging pipeline 1131 to push the pre-liquid into the extracorporeal circulation pipeline 120. The air pressure of the recovery bin 112 can be reduced by using the air extraction pipeline 1132 to suck the pre-liquid into the extracorporeal circulation pipeline 120.

[0041] The power output member includes an air pump (not shown in the figure), an air storage tank (not shown in the figure), and a main connector (not shown in the figure), and the air pump and the air storage tank can be located in the control host 200. The consumable package 100 has a shell 130, and a secondary connector (not shown in the figure) can be arranged on the shell 130. The air charging pipeline 1131 and the air extraction pipeline 1132 are respectively connected to the secondary connector. When the consumable package 100 is assembled with the control host 200, the main connector is inserted into the corresponding secondary connector, and the air charging pipeline 1131 and the air extraction pipeline 1132 are respectively connected to the corresponding secondary connector to realize air charging and air extraction. Of course, in other embodiments, the air storage tank and the air pump can also be consumables and be assembled in the consumable package 100 to be pre-assembled with the air charging pipeline 1131 and the air extraction pipeline 1132. The power output member is the power source of the air pump, and when the consumable package 100 is assembled with the control host 200, the power output member is used to provide power for starting the air pump.

[0042] Since it takes a period of time for the pre-liquid to continuously flow into the extracorporeal circulation pipeline 120 until the air in the extracorporeal circulation pipeline 120 is completely discharged, a sufficient amount of pre-liquid can be stored in the pre-liquid storage bin 111, or the pre-liquid in the recovery bin 112 can be supplemented into the pre-liquid storage bin 111 in order to reduce the overall volume of the pre-liquid device 110. Specifically, the pre-liquid device 110 further includes a connecting pipeline 116, a connecting valve 1161, a first valve 1141, and a second valve 1151. The first valve 1141 is arranged on the first pipeline 114 to control the opening and closing of the first pipeline 114. The second valve 1151 is arranged on the second pipeline 115 to control the opening and closing of the second pipeline 115. The connecting pipeline 116 connects the pre-liquid storage bin 111 and the recovery bin 112. The connecting valve 1161 is arranged on the connecting pipeline 116. After the first valve 1141 and the second valve 1151 are closed, the connecting valve 1161 can be opened to adjust the pressure difference between the pre-liquid storage bin 111 and the recovery bin 112, so that the pressure in the recovery bin 112 is greater than the pressure in the pre-liquid storage bin 111, and the pre-liquid in the recovery bin 112 is supplemented into the pre-liquid storage bin 111.

[0043] When the pre-priming liquid in the pre-priming liquid tank 111 is insufficient, the first valve 1141 and the second valve 1151 can be closed, and then the communication valve 1161 is opened. The gas in the pre-priming liquid tank 111 is extracted by the gas charging pipeline 1131 and / or the gas in the recovery tank 112 is supplemented by the gas extraction pipeline 1132, so that a pressure difference is generated between the recovery tank 112 and the pre-priming liquid tank 111 to drive the pre-priming liquid to flow from the recovery tank 112 to the pre-priming liquid tank 111, and the pre-priming liquid can be supplemented in the pre-priming liquid tank 111 for recycling. When the pre-priming liquid tank 111 stores enough pre-priming liquid, the communication valve 1161 can be closed, the pre-priming liquid tank 111 can be pressurized by the gas charging pipeline 1131 and / or the recovery tank 112 can be depressurized by the gas extraction pipeline 1132, and the first valve 1141 and the second valve 1151 can be opened in time, so that the pipeline pre-priming of the extracorporeal circulation pipeline 120 can be continued.

[0044] Specifically, the end of the communication pipeline 116 connected to the recovery tank 112 is located at the bottom or near the bottom of the recovery tank 112, so that more pre-priming liquid can be supplemented into the pre-priming liquid tank 111.

[0045] Please refer to Figure 5 , Figure 5 is a partial perspective structural schematic diagram of a pre-priming device of a cardiopulmonary bypass system according to another embodiment of the present application.

[0046] In some other embodiments, the internal pressure of the pre-priming liquid tank 111 and / or the recovery tank 112 can be changed by moving the push plate 1133 in the pre-priming liquid tank 111 and / or the recovery tank 112 to simulate the piston movement to compress or expand the fluid, so as to generate a pressure difference to drive the pre-priming liquid to flow.

[0047] For example, the driving member 113 is arranged in the pre-priming liquid tank 111. The driving member 113 includes a push plate 1133 and a pushing mechanism 1134. The push plate 1133 is movably arranged in the pre-priming liquid tank 111 in the first direction X, and the pre-priming liquid is located between the push plate 1133 and the first pipeline 114. The pushing mechanism 1134 is used to be connected with the power output member, and the pushing mechanism 1134 is connected with the push plate 1133 and pushes the push plate 1133 to move in the first direction X. The push plate 1133 can push the pre-priming liquid to flow out of the first pipeline 114 and enter the extracorporeal circulation pipeline 120 through the first pipe end 121. The pre-priming liquid gradually wets the components such as the membrane oxygenator 126 and the centrifugal pump 123, and discharges the gas in the extracorporeal circulation pipeline 120; the pre-priming liquid carrying the discharged gas is discharged through the second pipe end 122 and enters the recovery tank 112 through the second pipeline 115, so as to pre-priming the extracorporeal circulation pipeline 120. In addition, the recovery tank 112 can discharge excess gas through the exhaust structure 1122 to accommodate the pre-priming liquid.

[0048] In some embodiments, the outer periphery of the push plate 1133 is in contact with the inner wall of the pre-liquid filling container 111, so as to fully push the pre-liquid and ensure that the pre-liquid is isolated from the outside world, thereby further avoiding pre-liquid leakage or contamination from the outside world. The outer periphery of the push plate 1133 can be provided with a sealing ring (not shown in the figure), which is in contact with the inner wall of the pre-liquid filling container 111.

[0049] In other embodiments, a pre-liquid bag 1111 is arranged in the pre-liquid filling container 111. The pre-liquid is filled in the pre-liquid bag 1111, the pre-liquid bag 1111 is in communication with the first pipeline 114, and the push plate 1133 is located outside the pre-liquid bag 1111 to slide and extrude the pre-liquid bag 1111. By arranging the pre-liquid bag 1111, the pre-liquid can be isolated from the push plate 1133, and the sealing property of the pre-liquid in the pre-liquid bag 1111 is ensured; the outer periphery of the push plate 1133 can also not be in contact with the inner wall of the pre-liquid filling container 111, so as to reduce the movement resistance of the push plate 1133.

[0050] The push mechanism 1134 includes a push rod 1135, a linear driving member 1136 and a rotary driving member 1137. The push rod 1135 extends into the pre-liquid filling container 111 and is connected with the push plate 1133 to drive the push plate 1133 to move. The linear driving member 1136 is arranged outside the pre-liquid filling container 111 and is fixed opposite to the push rod 1135. The rotary driving member 1137 is rotatably arranged outside the pre-liquid filling container 111 and is used to be connected with the power output member. The rotary driving member 1137 converts the rotary output of the power output member into linear driving force, drives the linear driving member 1136 to move along the first direction X, and then drives the push rod 1135 to move along the first direction X.

[0051] Further, the housing 130 of the consumable kit 100 is provided with a driving connection member. When the consumable kit 100 is assembled with the control host 200, the power output member of the control host 200 can be connected with the driving connection member. The driving connection member can transmit the rotary output to the rotary driving member 1137 through a gear set or other transmission structure.

[0052] Specifically, the rotary driving member 1137 is a self-rotating screw, the linear driving member 1136 is a threaded block threadedly connected with the self-rotating screw, and the threaded block is fixed opposite to the part of the push rod 1135 extending out of the pre-liquid filling container 111. The self-rotating screw extends along the first direction X and is rotatably arranged in the consumable kit 100. When the consumable kit 100 is assembled with the control host 200, the end of the self-rotating screw is connected with the power output member. The power output member drives the self-rotating screw to rotate, thereby driving the threaded block and the push rod 1135 to reciprocate along the first direction X. The push rod 1135 can push the push plate 1133 to extrude the pre-liquid and make it enter the extracorporeal circulation pipeline 120 along the first direction X.

[0053] Of course, in other embodiments, the rotating driving member 1137 can also be a gear, and the linear driving member 1136 is a rack, which is fixed relative to the push rod 1135. The power output driving gear rotates, which can drive the rack and the push rod 1135 to move in the first direction X. The rotating driving member 1137 and the linear driving member 1136 can also be a crank linkage mechanism, so that the rotation output of the power output member can be converted into linear motion. Of course, in other embodiments, the power output member can be a linear driving mechanism, and the pushing mechanism 1134 includes a push rod 1135, which is directly used to interface with the power output member to drive the push plate 1133. Here, no limitation is made.

[0054] In some embodiments, referring to Figure 1 , the consumable kit 100 is stacked on the control host 200, and the joint of the structure for the interface between the inside of the consumable kit 100 and the control host 200 can be located at the bottom of the consumable kit 100. The consumable kit 100 can be more stably docked with the control host 200 under the action of gravity; when it is necessary to disassemble and replace the consumable kit 100, the consumable kit 100 only needs to be removed from above the control host 200, and the operation is more convenient.

[0055] Referring to Figure 1 , the trolley assembly 300 can facilitate the operation and convenient transfer of the heart-lung bypass system 10. In some embodiments, the trolley assembly 300 includes a support frame 310, a trolley chassis 311, and a trolley column 312. The control host 200 can be stacked on the support frame 310. The trolley chassis 311 is arranged at the bottom of the support frame 310. The trolley chassis 311 is provided with universal casters 313 at the bottom, which facilitates the movement of the overall device. The trolley column 312 is arranged on the trolley chassis 311, and when the control host 200 and the consumable kit 100 are stacked on the support frame 310, the side of the control host 200 and the consumable kit 100 abuts against the trolley column 312. The trolley column 312 can support the consumable kit 100 and the control host 200 on the side to avoid disengagement due to shaking during transportation. The trolley column 312 is provided with a trolley handle 314, which facilitates the holding of the staff.

[0056] It should be noted that the terms "horizontal", "vertical", and the like, do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined; the terms "parallel", "perpendicular", and the like, also do not mean that the fittings must be absolutely parallel or perpendicular, but can form a certain angular deviation. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In addition, the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the products of the present application are usually placed during use, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0057] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A heart-lung bypass system, characterized in that include: Consumables kit, including pre-fill device and extracorporeal circulation tubing; The control host is detachably connected to the consumable kit. The control host also has a power output component. After the consumable kit is assembled with the control host, the power output component is connected to the pre-charging device and can be used to control the pre-charging device to pre-charge the extracorporeal circulation pipeline.

2. The cardiopulmonary bypass system of claim 1, wherein, The extracorporeal circulation tubing has a first end and a second end disposed opposite to each other, and the pre-filling device includes: A pre-filled liquid tank stores pre-filled liquid, and the pre-filled liquid tank is connected to a first pipe end through a first pipeline; The recovery chamber is connected to the end of the second pipe via a second pipeline; A drive unit, which interfaces with the power output unit, is used to change the internal pressure of the pre-filled liquid tank and / or the recovery tank, so as to drive the pre-filled liquid into the extracorporeal circulation pipeline and discharge the gas in the extracorporeal circulation pipeline.

3. The cardiopulmonary bypass system of claim 2, wherein, The first pipeline is connected to the bottom of the pre-filled liquid tank; the driving component includes: An inflation line is connected to the top of the pre-filled liquid tank and is used at least to inflate the pre-filled liquid tank to increase the internal air pressure of the pre-filled liquid tank. An exhaust pipe is connected to the top of the recovery chamber and is used at least to extract gas from the recovery chamber to reduce the internal air pressure of the recovery chamber.

4. The cardiopulmonary bypass system of claim 2, wherein, The pre-charging device also includes: A connecting pipe, which connects the pre-filled liquid tank and the recovery tank; A first valve is installed in the first pipeline to control the opening and closing of the first pipeline; A second valve is installed in the second pipeline to control the opening and closing of the second pipeline; A connecting valve is installed in the connecting pipe to control the opening and closing of the connecting pipe.

5. The heart-lung bypass system of claim 2, wherein, The driving component includes: A pusher plate is movably disposed within the pre-filled liquid tank along a first direction, and the pre-filled liquid is located between the pusher plate and the first pipeline; A pushing mechanism is connected to the push plate and pushes the push plate to move along the first direction to push the pre-filled liquid to flow into the first pipeline; the pushing mechanism is used to dock with the power output component.

6. The heart-lung bypass system of claim 5, wherein, The outer periphery of the pusher plate is in contact with the inner wall of the pre-filled liquid tank.

7. The cardiopulmonary bypass system of claim 5, wherein, The pre-filled liquid tank is provided with a pre-filled bag, the pre-filled liquid is filled in the pre-filled bag, the pre-filled bag is connected to the first pipeline, and the push plate is located outside the pre-filled bag to slide and squeeze the pre-filled bag.

8. The cardiopulmonary bypass system of claim 5, wherein, The propulsion mechanism includes: A push rod extends into the pre-filled liquid tank and connects to the push plate to drive the push plate to move; A linear drive component is disposed outside the pre-filled liquid tank and fixed relative to the push rod; A rotary drive component is rotatably disposed outside the pre-filled liquid tank for docking with the power output component and driving the linear drive component to move along the first direction.

9. The cardiopulmonary bypass system of claim 2, wherein, The extracorporeal circulation tubing also includes a centrifugal pump and a membrane oxygenator between the first tube end and the second tube end. The pre-filling liquid is pre-filled into the centrifugal pump and enters the membrane oxygenator to achieve pre-filling and venting.

10. The cardiopulmonary bypass system of claim 1, wherein, The cardiopulmonary bypass system also includes a trolley assembly, which includes: A support frame, on which the control host is stacked; A trolley chassis is located at the bottom of the support frame, and swivel casters are provided at the bottom of the trolley chassis. A trolley column is arranged on the trolley chassis. When the control host and the consumable sleeve are placed on the support frame, the side of the control host and the consumable sleeve abuts against the trolley column. The trolley column is provided with a trolley handle.

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