Extracorporeal circulation system and method of assembling the same

Abstract

The present application relates to the technical field of medical devices, and discloses an extracorporeal circulation system and an assembling method thereof, wherein the extracorporeal circulation system comprises a heart-lung machine and a cardioplegic solution device, and the present application limits the bubble catcher to have a first state of being clamped on the pipeline of the heart-lung machine and a second state of being separated from the pipeline of the heart-lung machine, so that when the bubble catcher is in the second state, the bubble catcher can be installed on the pipeline of the cardioplegic solution device to detect the bubbles in the pipeline of the cardioplegic solution device. Since the bubble catcher on the heart-lung machine is a clip structure, the bubble catcher on the heart-lung machine is used on the cardioplegic solution device, which not only does not increase the pre-charge of the cardioplegic solution device, but also avoids the bubbles from entering the patient's body, thereby achieving the technical effect of improving the reliability of the use of the cardioplegic solution device.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an extracorporeal circulation system and its assembly method. Background Technology

[0002] Existing extracorporeal circulation systems have at least the following problems in practical use: The extracorporeal circulation system includes a cardioplegic resuscitation device. Since the cardioplegic resuscitation device directly perfuses the coronary arteries, it is absolutely forbidden to allow air to enter. Therefore, some existing cardioplegic resuscitation devices are equipped with a Murphy's pot to act as a bubble trap. However, the Murphy's pot increases the pre-fill volume of the extracorporeal circulation system, resulting in an increase in non-patient-derived fluid in the extracorporeal circulation circuit, which can easily increase the risks of blood dilution and circulatory overload.

[0003] Therefore, there is an urgent need for a bubble trap for stop-jump fluid devices that does not require additional structure or pre-filling of the extracorporeal circulation system. Summary of the Invention

[0004] This invention provides an extracorporeal circulation system and its assembly method to address the problem that the extracorporeal circulation system includes a cardioplegic resuscitation device. Since the cardioplegic resuscitation device directly perfuses the coronary arteries, it is absolutely forbidden to allow air in. Therefore, some existing cardioplegic resuscitation devices are equipped with a Murphy's pot to act as a bubble trap. However, the Murphy's pot increases the pre-fill volume of the extracorporeal circulation system, resulting in an increase in non-patient-derived fluid in the extracorporeal circulation circuit, which can easily increase the risks of blood dilution and circulatory overload.

[0005] In a first aspect, the present invention provides an extracorporeal circulation system, comprising: The cardiopulmonary bypass machine has an air bubble trap on its tubing. The air bubble trap has a clamp structure and has a first state in which it is clamped to the tubing of the cardiopulmonary bypass machine and a second state in which it is separated from the tubing of the cardiopulmonary bypass machine. A cardiopulmonary bypass device is located on one side of the cardiopulmonary bypass machine. The cardiopulmonary bypass device is connected to the desired location. The tubing of the cardiopulmonary bypass device is detachably connected to the bubble trap. When the tubing of the cardiopulmonary bypass device is connected to the bubble trap, the bubble trap is in the second state.

[0006] Beneficial Effects: By defining the bubble trap as having a first state where it is clamped onto the tubing of the cardiopulmonary bypass machine (CPR) and a second state where it is disconnected from the CPR tubing, the bubble trap, in its second state, can be placed on the tubing of the cardiopulmonary bypass device to detect air bubbles within the tubing. Since the bubble trap on the CPR machine has a clamp structure, using it on the cardiopulmonary bypass device not only does not increase the perfusion of the cardiopulmonary bypass device but also improves its reliability. This enhances the safety and reliability of the cardiopulmonary bypass device without adding any extra structure to the extracorporeal circulation system, thereby improving its ease of use. Furthermore, since the planar monitoring function of the extracorporeal circulation system is the same as that of the bubble trap on the CPR machine, placing the bubble trap on the cardiopulmonary bypass device further addresses the functional redundancy issue of the bubble trap on the CPR machine, thus improving the reliability of the extracorporeal circulation system.

[0007] In one alternative embodiment, the bubble trap is clamped and fixed to the piping of the stop-jump fluid device.

[0008] Beneficial effects: By limiting the tubing of the anti-skid fluid device and clamping and fixing the bubble trap, the ease of detachable connection between the tubing of the anti-skid fluid device and the bubble trap can be improved, thereby achieving the technical effect of improving the ease of use of the extracorporeal circulation system.

[0009] In one alternative implementation, the bubble trap is clamped and secured to the tubing of the cardiopulmonary bypass machine.

[0010] Beneficial effects: By limiting the clamping and fixing of the tubing and bubble trap of the cardiopulmonary bypass machine, the ease of detachable connection between the tubing and bubble trap can be improved, thereby achieving the technical effect of improving the ease of use of the extracorporeal circulation system.

[0011] In one alternative implementation, the extracorporeal circulation system includes: A fixing bracket is provided on one side of the bubble trap and connected to the bubble trap. The fixing bracket is used to support and fix the position of the bubble trap.

[0012] Beneficial effects: By defining a first state where the bubble trap is clamped onto the tubing of the cardiopulmonary bypass machine and a second state where it is disconnected from the tubing, the bubble trap, in its second state, can be installed on the tubing of the cardiopulmonary bypass device to detect bubbles within the tubing. Since the bubble trap on the cardiopulmonary bypass machine has a clamp structure, using it on the cardiopulmonary bypass device not only does not increase the pre-fill volume of the device but also prevents bubbles from entering the patient's body, thereby improving the reliability of the cardiopulmonary bypass device.

[0013] Based on this, the safety and reliability of the cardiopulmonary bypass device are improved without adding any additional structure to the extracorporeal circulation system, thereby enhancing the ease of use of the device. Furthermore, since the planar monitoring function on the extracorporeal circulation system is identical to the air bubble trap on the cardiopulmonary bypass machine, placing the air bubble trap on the cardiopulmonary bypass device further resolves the issue of functional redundancy in the cardiopulmonary bypass machine, thus improving the structural simplicity of the extracorporeal circulation system.

[0014] In one alternative embodiment, the mounting bracket is detachably connected to the bubble trap.

[0015] Beneficial effects: The retaining bracket and the air bubble trap are detachably connected. This allows for easy installation and removal of the retaining bracket and air bubble trap according to the actual usage of the extracorporeal circulation system, thereby improving the reliability of the extracorporeal circulation system.

[0016] In one optional embodiment, the trip-stopping fluid device includes: A stop-jump fluid supply structure includes a receiving cavity for receiving stop-jump fluid; The power structure is located between the stop-jump fluid supply structure and the bubble catcher, and is connected to the pipeline of the stop-jump fluid device.

[0017] Beneficial effects: By defining the stop-jump fluid device as including a stop-jump fluid supply structure and a power structure, the stop-jump fluid in the stop-jump fluid supply structure can be driven to the required position by the power structure, thereby improving the automation of the stop-jump fluid entering the required position and the ease of operation.

[0018] In one alternative implementation, the power structure is a circulating pump.

[0019] In one alternative embodiment, the power structure is detachably connected to the stop-jump fluid supply structure via a pipeline of the stop-jump fluid device.

[0020] Beneficial effects: The piping of the de-energizing fluid device allows for a detachable connection between the power structure and the de-energizing fluid supply structure. This improves the ease of replacement of either the power structure or the de-energizing fluid supply structure. If a problem occurs, only the power structure or only the de-energizing fluid supply structure needs to be replaced, thus enhancing the ease of use of the extracorporeal circulation system.

[0021] In one alternative embodiment, the power structure is threadedly connected to the pipeline of the stop-jump fluid device, and / or the pipeline of the stop-jump fluid device is threadedly connected to the stop-jump fluid supply structure.

[0022] Beneficial effects: By ensuring that the pipelines between the power structure and the stop-shutdown fluid device, as well as the pipelines between the stop-shutdown fluid device and the stop-shutdown fluid supply structure, are all threaded connections, this not only achieves a detachable connection between the power structure and the stop-shutdown fluid supply structure, but also ensures the reliability of the connection between them.

[0023] Secondly, the present invention also provides a method for assembling an extracorporeal circulation system, for assembling the extracorporeal circulation system described above, the method comprising: Disconnect the air bubble trap from the cardiopulmonary bypass machine's tubing; Connect the bubble trap to the piping of the stop-jump fluid device. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the extracorporeal circulation system in this embodiment; Figure 2 This is a schematic diagram of the bubble trap in the extracorporeal circulation system of this embodiment; Figure 3 This is a flowchart of the extracorporeal circulation system assembly method in this embodiment.

[0026] Explanation of reference numerals in the attached figures: 1. Cardiopulmonary bypass machine; 101. Tubing of the cardiopulmonary bypass machine; 102. Air bubble trap; 2. Stop-shutdown fluid device; 201. Piping of the stop-shutdown fluid device; 202. Stop-shutdown fluid supply structure; 203. Power structure; 3. Mounting bracket; 4. Required location. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The following is combined Figures 1 to 3 The following describes embodiments of the present invention.

[0029] According to an embodiment of the present invention, in one aspect, an extracorporeal circulation system is provided, comprising: The cardiopulmonary machine 1 has a bubble trap 102 on its tubing 101. The bubble trap 102 is a clamp structure and has a first state where it is clamped on the tubing 101 of the cardiopulmonary machine and a second state where it is separated from the tubing 101 of the cardiopulmonary machine. The cardiopulmonary bypass device 2 is located on one side of the cardiopulmonary bypass machine 1. The cardiopulmonary bypass device 2 is connected to the required position 4. The tubing 201 of the cardiopulmonary bypass device is detachably connected to the bubble trap 102. When the tubing 201 of the cardiopulmonary bypass device is connected to the bubble trap 102, the bubble trap 102 is in the second state.

[0030] In the extracorporeal circulation system of this embodiment, by defining a first state in which the bubble trap 102 is clamped onto the tubing 101 of the cardiopulmonary bypass machine and a second state in which it is separated from the tubing 101 of the cardiopulmonary bypass machine, the bubble trap 102 can be installed on the tubing 201 of the cardiopulmonary bypass device when it is in the second state, so as to detect bubbles in the tubing 201 of the cardiopulmonary bypass device. Since the bubble trap 102 on the cardiopulmonary bypass machine 1 has a clamp structure, the use of the bubble trap 102 on the cardiopulmonary bypass machine 1 on the cardiopulmonary bypass device 2 not only does not increase the pre-filling volume of the cardiopulmonary bypass device 2, but also prevents bubbles from entering the patient's body, thereby achieving the technical effect of improving the reliability of the cardiopulmonary bypass device 2.

[0031] Based on this, the safety and reliability of the cardiopulmonary bypass device 2 are improved without adding any additional structure to the extracorporeal circulation system, thereby enhancing the ease of use of the cardiopulmonary bypass device 2. Simultaneously, since the planar monitoring function on the extracorporeal circulation system is the same as the function of the bubble trap 102 on the cardiopulmonary bypass machine 1, placing the bubble trap 102 on the cardiopulmonary bypass machine 1 on the cardiopulmonary bypass device 2 further solves the problem of functional redundancy of the bubble trap 102 on the cardiopulmonary bypass machine 1, thus achieving the technical effect of improving the structural simplicity of the extracorporeal circulation system.

[0032] It should be noted that the bubble trap 102, also known as a bubble sensor, is used to detect whether there are air bubbles in the tubing. If air bubbles are found, an alarm is triggered, facilitating the handling of the air bubbles by medical personnel. The bubble trap 102 has a clip structure, meaning it is clip-shaped and can be clamped onto the tubing 101 of the cardiopulmonary bypass machine or the tubing 201 of the stop-flow fluid device during use.

[0033] In addition, it should be noted that position 4 is for the patient.

[0034] In addition, combined Figure 1 As shown, in this embodiment, the bubble trap 102 is clamped and fixed to the tubing 201 of the stop-jump fluid device, and the bubble trap 102 is clamped and fixed to the tubing 101 of the cardiopulmonary bypass machine.

[0035] Of course, in other embodiments, depending on the design of the extracorporeal circulation system, adjusting the detachable connection between the tubing 201 of the stop-flow fluid device and the bubble trap 102, and between the tubing 101 of the cardiopulmonary bypass machine and the bubble trap 102, such as a threaded connection, is all within the scope of protection of this invention.

[0036] In addition, combined Figure 2 As shown, in this embodiment, the extracorporeal circulation system includes: The fixing bracket 3 is located on one side of the bubble trap 102 and connected to the bubble trap 102. The fixing bracket 3 is used to support and fix the position of the bubble trap 102.

[0037] By defining the extracorporeal circulation system, including the mounting bracket 3, which can be placed on the ground and supports the position of the bubble trap 102, the position of the bubble trap 102 is defined, thereby improving the positional reliability of the bubble trap 102 and thus improving the reliability of the extracorporeal circulation system.

[0038] Preferably, the mounting bracket 3 is detachably connected to the bubble trap 102.

[0039] Based on this, it is convenient to install and remove the fixture 3 and the bubble trap 102 according to the actual use of the extracorporeal circulation system, thereby achieving the technical effect of improving the ease of use of the extracorporeal circulation system.

[0040] Alternatively, the mounting bracket 3 can be fixedly connected to the bubble trap 102.

[0041] Furthermore, combined Figure 1 and Figure 2As shown, the mounting bracket 3 is snapped into the bubble trap 102, for example, by means of a ball joint buckle, so as to achieve a detachable connection between the mounting bracket 3 and the bubble trap 102.

[0042] As an alternative implementation, the fixing frame 3 and the bubble trap 102 can be threaded together, which also enables a detachable connection between the fixing frame 3 and the bubble trap 102. In other embodiments, the detachable connection method between the fixing frame 3 and the bubble trap 102 can be adjusted according to the different designs of the extracorporeal circulation system.

[0043] Of course, in other embodiments, depending on the design of the extracorporeal circulation system, the extracorporeal circulation system may not include the fixation frame 3, all of which are within the protection scope of this invention.

[0044] Combination Figure 1 As shown, in this embodiment, the stop-jump fluid device 2 includes: The stop-jump fluid supply structure 202 includes a receiving cavity for containing stop-jump fluid; The power structure 203 is located between the stop fluid supply structure 202 and the bubble catcher 102, and is connected to the pipeline 201 of the stop fluid device. The power structure 203 is used to drive the stop fluid into the required position 4.

[0045] By defining the stop-jump fluid device 2 as including a stop-jump fluid supply structure 202 and a power structure 203, the stop-jump fluid in the stop-jump fluid supply structure 202 can be driven to the required position 4 by the power structure 203, thereby improving the ease of automated operation of the stop-jump fluid entering the required position 4.

[0046] The cardioplegic respiration fluid supply structure 202 is a bottle-shaped structure, and the power structure 203 is a circulation pump. Simultaneously, the oxygenated blood required for extracorporeal circulation is also delivered to the desired location 4 via the power structure 203. Specifically, the oxygenated blood and cardioplegic respiration fluid required for extracorporeal circulation are mixed before entering the bubble trap 102 and then injected into the patient's body.

[0047] In addition, in this embodiment, a clamping structure is provided on the pipeline 201 of the stop fluid device between the stop fluid supply structure 202 and the power structure 203. The stop fluid can be temporarily clamped by the clamping structure. When the stop fluid needs to flow out, the clamping structure is opened to avoid waste of the stop fluid and save the cost of the stop fluid, thereby achieving the technical effect of improving the cost of using the extracorporeal circulation system.

[0048] The clamping mechanism is a pair of pliers. Pliers are readily available, thus improving the ease of use of the extracorporeal circulation system.

[0049] Of course, in other embodiments, the specific structure of the clamping structure can be adjusted according to the different designs of the extracorporeal circulation system; for example, the clamping structure can be a flow regulating valve. Compared to other embodiments, the forceps in this embodiment can be reused and are essential medical instruments in most surgeries, thus achieving the technical effect of saving the cost of using the extracorporeal circulation system.

[0050] Of course, in other embodiments, the shape of the stop-shutdown fluid supply structure 202 can be adjusted according to the different designs of the extracorporeal circulation system. For example, the stop-shutdown fluid supply structure 202 can be a box-shaped structure. Alternatively, the specific type of the power structure 203 can be adjusted, for example, the power structure 203 can be a liquid pump. All of these are within the protection scope of the present invention.

[0051] In other embodiments, the structure of the stop-jump fluid device 2 may be adjusted according to the different designs of the extracorporeal circulation system. For example, the stop-jump fluid device 2 may not include the stop-jump fluid supply structure 202, all of which are within the protection scope of the present invention.

[0052] Furthermore, in this embodiment, the power structure 203 is detachably connected to the de-energizing fluid supply structure 202 via a pipeline 201 of the de-energizing fluid device. Based on this, the ease of replacing either the power structure 203 or the de-energizing fluid supply structure 202 can be improved. If a problem occurs with either the power structure 203 or the de-energizing fluid supply structure 202, only the power structure 203 or only the de-energizing fluid supply structure 202 needs to be replaced, thereby achieving the technical effect of improving the ease of use of the extracorporeal circulation system.

[0053] In this configuration, the power structure 203 and the pipeline 201 of the trip fluid device, as well as the pipeline 201 of the trip fluid device and the trip fluid supply structure 202, are all threadedly connected. This not only enables a detachable connection between the power structure 203 and the trip fluid supply structure 202, but also ensures the reliability of the connection between them.

[0054] Of course, in other embodiments, depending on the design of the extracorporeal circulation system, the detachable connection method between the power structure 203 and the stop-jump fluid supply structure 202 can be adjusted. For example, the power structure 203 and the stop-jump fluid device pipeline 201, and the stop-jump fluid device pipeline 201 and the stop-jump fluid supply structure 202 can be connected by inserts, all of which are within the protection scope of this invention. Alternatively, the power structure 203 and the stop-jump fluid supply structure 202 can be connected by threads, and the stop-jump fluid device pipeline 201 and the stop-jump fluid supply structure 202 can be connected by inserts, all of which are within the protection scope of this invention.

[0055] As an alternative implementation, it is also possible to limit the threaded connection between the power structure 203 and the pipeline 201 of the stop-jump device, or to limit the threaded connection between the pipeline 201 of the stop-jump device and the stop-jump supply structure 202, both of which are within the protection scope of the present invention.

[0056] According to an embodiment of the present invention, in combination Figure 3 As shown, on the other hand, an extracorporeal circulation system assembly method is also provided for assembling the extracorporeal circulation system of this embodiment. The extracorporeal circulation system assembly method includes: Step S101: Disconnect the connection between the bubble trap 102 and the tubing 101 of the cardiopulmonary bypass machine; Step S201: Connect the bubble trap 102 to the pipeline 201 of the stop-jump liquid device.

[0057] By using the above assembly method, the air bubble trap 102 clamped on the tubing 101 of the cardiopulmonary bypass machine can be moved to the tubing 201 of the cardiopulmonary bypass device, avoiding functional redundancy of the air bubble trap 102 on the cardiopulmonary bypass machine 1, thereby achieving the technical effect of improving the reliability of the extracorporeal circulation system. When air bubbles are present in the tubing 201 of the cardiopulmonary bypass device, it can alert medical staff to handle the air bubbles.

[0058] Meanwhile, by applying the bubble trap 102 on the cardiopulmonary bypass machine 1 to the cardiopulmonary bypass device 2, not only is the pre-fill volume of the cardiopulmonary bypass device 2 not increased, but the risk of bubbles entering the patient's body can also be avoided. This improves the assembly method of the extracorporeal circulation system from both the perspectives of pre-fill volume and safety, thereby achieving the technical effect of improving the reliability of the cardiopulmonary bypass device 2, and thus improving the reliability of the extracorporeal circulation system and the safety of its clinical application.

[0059] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An extracorporeal circulation system, characterized in that, include: The cardiopulmonary machine (1) has a bubble trap (102) on its tubing (101). The bubble trap (102) is configured as a clamp structure and has a first state of being clamped on the tubing (101) of the cardiopulmonary machine and a second state of being separated from the tubing (101) of the cardiopulmonary machine. The cardiopulmonary bypass device (2) is located on one side of the cardiopulmonary bypass machine (1). The cardiopulmonary bypass device (2) is connected to the desired location (4). The pipeline (201) of the cardiopulmonary bypass device is detachably connected to the bubble trap (102). When the pipeline (201) of the cardiopulmonary bypass device is connected to the bubble trap (102), the bubble trap (102) is in the second state.

2. The extracorporeal circulation system according to claim 1, characterized in that, The bubble trap (102) is clamped and fixed to the pipeline (201) of the stop-jump liquid device.

3. The extracorporeal circulation system according to claim 1, characterized in that, The bubble trap (102) is clamped and fixed to the tubing (101) of the cardiopulmonary machine.

4. The extracorporeal circulation system according to any one of claims 1-3, characterized in that, The extracorporeal circulation system includes: A fixing frame (3) is provided on one side of the bubble trap (102) and connected to the bubble trap (102). The fixing frame (3) is used to support and fix the position of the bubble trap (102).

5. The extracorporeal circulation system according to claim 4, characterized in that, The mounting bracket (3) is detachably connected to the bubble trap (102).

6. The extracorporeal circulation system according to any one of claims 1-3, characterized in that, The stop-jump fluid device (2) includes: The stop-jump fluid supply structure (202) includes a receiving cavity for receiving stop-jump fluid; The power structure (203) is located between the stop liquid supply structure (202) and the bubble trap (102) and is connected to the pipeline (201) of the stop liquid device. The power structure (203) is used to drive the stop liquid into the required position (4).

7. The extracorporeal circulation system according to claim 6, characterized in that, The power structure (203) is a circulating pump.

8. The extracorporeal circulation system according to claim 6, characterized in that, The power structure (203) is detachably connected to the stop-jump fluid supply structure (202) through the pipeline (201) of the stop-jump fluid device.

9. The extracorporeal circulation system according to claim 8, characterized in that, The power structure (203) is threadedly connected to the pipeline (201) of the stop-jump fluid device, and / or the pipeline (201) of the stop-jump fluid device is threadedly connected to the stop-jump fluid supply structure (202).

10. A method for assembling an extracorporeal circulation system, characterized in that, For assembling the extracorporeal circulation system according to any one of claims 1-9, the extracorporeal circulation system assembly method includes: Disconnect the bubble trap (102) from the tubing (101) of the cardiopulmonary machine; Connect the bubble trap (102) to the pipeline (201) of the stop-jump fluid device.

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