Container for circulation loop, circulation loop assembly and circulation loop system

Abstract

The utility model relates to the technical field of medical instruments, and particularly discloses a container for a circulation loop, a circulation loop assembly and a circulation loop system. According to the container for the circulation loop, the containing cavity is used for being filled with the liquid for circulation, and in the circulation loop, the liquid can enter the containing cavity through the liquid inlet and then is discharged out of the containing cavity through the liquid outlet; the outer side of the container body is provided with the connecting interface, the connecting interface is used for being detachably connected with the control host, and during experiment, demonstration or training, the connecting interface is connected with the control host to fix the container body, so that the container is fixed, the container does not topple over, and the experiment, demonstration or training effect is improved; the container is fixed on the control host of the circulation loop, no extra placing space is needed, and the whole structure is compact; and after the experiment, demonstration or training is finished, the container body can be detached, so that the container can be recycled, and meanwhile, the container is convenient to carry.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a container, a circulation loop assembly, and a circulation loop system for a circulation loop. Background Technology

[0002] An external ventricular assist device (VAD) is a circulatory support device that assists or replaces ventricular function. During experiments, demonstrations, or training on VADs, a circulatory loop assembly is required. Existing circulatory loop assemblies include a blood pump unit, circulation tubing, a three-way valve, a regulating valve, and a container for infusing fluid. The fluid in the container circulates within the tubing under the action of the blood pump unit. In existing technologies, during experiments, demonstrations, or training, the container lacks a fixed position, making it prone to tipping over. The entire circulatory loop system occupies a large space, is not compact enough, and negatively impacts the effectiveness of experiments, demonstrations, or training. Utility Model Content

[0003] The purpose of this invention is to provide a container, a circulation loop assembly, and a circulation loop system for use in circulation loops, so as to at least partially solve the above-mentioned technical problems.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] In a first aspect, a container for a circulation loop is provided, comprising a container body having a receiving cavity for filling liquid, the container body having a connection interface for detachably connecting to a control host of the circulation loop, the container body having an inlet and an outlet, the inlet and the outlet being respectively connected to the receiving cavity.

[0006] As an alternative technical solution for the container used in the circulation loop described above, the connection interface is located at the bottom of the outer side of the container body.

[0007] As an alternative technical solution for the container used in the circulation loop described above, a quick-release connector is connected to the liquid inlet and / or the liquid outlet.

[0008] As an alternative technical solution for the container used in the circulation loop described above, the inlet and the outlet are arranged facing each other radially along the container body.

[0009] As an optional technical solution for the container used in the circulation loop mentioned above, the container body includes a container body and a container lid. The container lid is detachably connected to the container body. A handle is provided on the container lid in the radial direction. When the container lid is connected to the container body, the radial extension direction of the handle is consistent with the direction of the line connecting the liquid inlet and the liquid outlet.

[0010] As an alternative technical solution for the container used in the circulation loop described above, the inlet is located within the lower third of the receiving cavity; and / or, the outlet is located within the lower third of the receiving cavity.

[0011] As an alternative technical solution for the container used in the circulation loop, the containment cavity is provided with a baffle.

[0012] As an alternative technical solution for the container used in the circulation loop described above, the container body includes a container body, and the spoiler is connected to the container body.

[0013] As an alternative technical solution for the container used in the circulation loop, the container body includes a container body and a container lid, the container lid is detachably connected to the container body, and the baffle is connected to the container lid. When the container lid is connected to the container body, the baffle is located inside the receiving cavity.

[0014] In a second aspect, a circulation loop assembly is provided, comprising a first support arm and a container for circulation loop as described above, wherein one end of the first support arm is detachably connected to the connection interface, and the other end of the first support arm is detachably connected to the control host.

[0015] As an optional technical solution for the above-mentioned circulation loop assembly, the circulation loop assembly further includes a blood pump unit, a second support arm, and a circulation pipeline. The blood pump unit is connected to the inlet and outlet of the container through the circulation pipeline. One end of the second support arm is detachably connected to the blood pump unit, and the other end of the second support arm is detachably connected to the control host.

[0016] As an optional technical solution for the aforementioned loop assembly, the first support arm and the second support arm have the same structure.

[0017] As an optional technical solution for the aforementioned circulation loop assembly, a temperature indicator sticker is provided on the pump housing of the blood pump unit, and the temperature indicator sticker is used to indicate the liquid temperature.

[0018] Thirdly, a circulation loop system is provided, including the control host and the circulation loop assembly described in any one of the above, wherein the control host is provided with a first plug-in portion for detachably connecting to a first support arm.

[0019] As an optional technical solution for the aforementioned loop system, the control host is further provided with a second plug-in part, which is used for detachable connection with the second support arm.

[0020] The beneficial effects of this utility model are:

[0021] This invention provides a container for a circulation loop. The container cavity is used to fill with circulating liquid. In the circulation loop, the liquid enters the container cavity through the inlet and then exits through the outlet. The container body has a connection interface on its outer side for detachable connection to a control host. During experiments, demonstrations, or training, the connection interface is used to fix the container body to the control host, thus preventing it from tipping over and improving the effectiveness of the experiment, demonstration, or training. The container is fixed to the control host of the circulation loop without requiring additional space, resulting in a compact overall structure. After the experiment, demonstration, or training, the container body can be detached for recycling and is also easy to carry.

[0022] The circulating loop assembly and circulating loop system provided by this utility model allow the container to be connected to the control host via a first support arm, facilitating the connection between the container and the control host. The first support arm, the connection interface, and the control host are detachably connected, making it convenient to install and remove the container, and it is easy to carry after removal. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the loop system provided in this embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the connection between the container and the first support arm provided in an embodiment of the present invention;

[0025] Figure 3 This is an axonometric view of the container and the first support arm provided in this embodiment of the utility model;

[0026] Figure 4 This is a cross-sectional view of the connection structure between the container and the first support arm provided in this embodiment of the utility model;

[0027] Figure 5 yes Figure 4 A magnified schematic diagram of the local structure at point A;

[0028] Figure 6 This is a schematic diagram of the structure of the baffle plate installed on the container body according to an embodiment of the present invention;

[0029] Figure 7 This is a cross-sectional view of the spoiler installed on the container body according to an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the spoiler installed on the container lid according to an embodiment of the present invention;

[0031] Figure 9 This is a cross-sectional view of the spoiler installed on the container lid according to an embodiment of the present invention.

[0032] In the picture:

[0033] 100. Control unit; 101. First connector; 102. Second connector; 201. First support arm; 202. Blood pump unit; 203. Second support arm; 204. Circulation pipeline; 205. Temperature indicator sticker; 206. Flow sensor; 207. Regulating valve;

[0034] 1. Container body; 2. Connection interface; 3. Spoiler; 4. Quick-release connector; 5. Connecting parts;

[0035] 11. Liquid inlet; 12. Liquid outlet; 13. Container body; 14. Container lid; 15. Handle; 17. Mounting plate. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] like Figure 1 As shown, this application provides a circulation loop system, specifically relating to a circulation loop system for a ventricular assist device. This circulation loop system can be used for experiments, demonstrations, training, or other suitable applications. The circulation loop system includes a control host 100 and a circulation loop assembly. The circulation loop assembly includes a container for the circulation loop. In the prior art, this container does not have a specific fixed position, is easily tipped over, and the entire circulation loop system occupies a large space, is not compact enough, and affects the effectiveness of experiments, demonstrations, or training.

[0041] like Figures 1 to 3 As shown, to solve the above problems, this embodiment proposes a container for a circulation loop. The container includes a container body 1, which has a receiving cavity for filling with liquid. The container body 1 is provided with a connection interface 2 for detachable connection with the control host 100 of the circulation loop. The container body 1 is provided with a liquid inlet 11 and a liquid outlet 12, which are respectively connected to the receiving cavity.

[0042] The container cavity is used to fill the circulating liquid. In the circulation loop, the liquid can enter the container cavity through the inlet 11 and then exit the container cavity through the outlet 12. The container body 1 is provided with a connection interface 2, which is used to detachably connect to the control host 100. When conducting experiments, demonstrations or training, the connection interface 2 is connected to the control host 100 to fix the container body 1, thereby fixing the container and preventing it from tipping over, thus improving the effectiveness of the experiment, demonstration or training. The container is fixed on the control host 100 of the circulation loop without the need for additional placement space, and the overall structure is compact. After the experiment, demonstration or training is completed, the container body 1 can be detached to realize the recycling of the container, and it is also easy to carry.

[0043] In some embodiments, the connection interface 2 is located at the bottom of the outer side of the container body 1, so that when the container body 1 is connected to the control host 100, it will not interfere with other operations or components, thereby making experiments, demonstrations or training more convenient.

[0044] In some embodiments, a foot pad is provided on the bottom of the outer side of the container body 1. The foot pad is spaced apart around the bottom of the container body 1. When the container is placed on a table, the foot pad can make the container more stable and also play a role in preventing slipping.

[0045] In some embodiments, a quick-release connector 4 is connected to the inlet 11, which enables quick insertion and removal from the circulation pipeline 204 and facilitates storage; at the same time, the quick-release connector 4 replaces the Luer connector in the prior art, which is less likely to be damaged or fail to seal under the action of external forces such as impact and twisting.

[0046] In some embodiments, a quick-release connector 4 is connected to the outlet 12, which enables quick insertion and removal from the circulation pipeline 204 and facilitates storage; at the same time, the quick-release connector 4 replaces the Luer connector in the prior art, which is less likely to be damaged or fail to seal under the action of external forces such as impact and twisting.

[0047] The aforementioned quick-release connector 4 includes a male and a female connector. One of the male and female connectors is connected to the inlet 11 or the outlet 12, and the other of the male and female connectors is connected to the circulation pipeline 204. The specific structure of the quick-release connector 4 is prior art and is not specifically limited here. For example, the structure of the quick-release connector 4 can be found in patent CN117717665A.

[0048] In some embodiments, the inlet 11 and outlet 12 are arranged facing each other radially along the container body 1. When the circulation flow rate is large, the liquid entering the containment cavity from the inlet 11 has a high velocity and high energy. The dissipation of fluid energy easily generates a vortex effect, which can entrain gas above the liquid surface into the liquid. By arranging the inlet 11 and outlet 12 facing each other radially along the container body 1, the dissipation of fluid energy can be reduced, thereby reducing the intensity of the generated vortex, reducing or avoiding the entrainment of gas above the liquid surface into the liquid, and preventing bubbles from entering the circulation pipeline 204 through the outlet 12, triggering the bubble detection device to generate an alarm or even shut down.

[0049] Optionally, the container body 1 includes a container body 13 and a container lid 14. The container lid 14 is detachably connected to the container body 13. A handle 15 is provided on the container lid 14 in the radial direction. When the container lid 14 is connected to the container body 13, the radial direction of the handle 15 is consistent with the line connecting the liquid inlet 11 and the liquid outlet 12 to indicate that the container lid 14 is installed in place. After the container lid 14 is installed in place, the radial direction of the handle 15 is consistent with the line connecting the liquid inlet 11 and the liquid outlet 12, resulting in a good appearance.

[0050] In some embodiments, the inlet 11 is located within the lower third of the receiving cavity, such that the inlet 11 is positioned close to the bottom of the receiving cavity, thereby keeping the inlet 11 away from the liquid surface and reducing the possibility of air above the liquid surface being drawn into the liquid.

[0051] In some embodiments, the outlet 12 is located within the lower third of the receiving cavity, such that the outlet 12 is positioned close to the bottom of the receiving cavity, thereby keeping the outlet 12 away from the liquid surface and preventing air bubbles that have been trapped in the upper layer of the liquid from being discharged from the outlet 12 and entering the circulation pipeline 204.

[0052] In some embodiments, the container cap 14 is threadedly connected to the container body 13. The container cap 14 has a first thread, and the container body 13 has a second thread. After the container cap 14 and the container body 13 are threadedly connected, they can seal the container body 13. Further, the container cap 14 has a sealing groove, and a sealing ring is provided in the sealing groove. When the container cap 14 is installed on the container body 13, the sealing ring abuts against the container body 13. In other possible embodiments, the container cap 14 and the container body 13 are snap-fitted or inserted.

[0053] like Figures 6 to 9 As shown, in some embodiments, a baffle plate 3 is provided inside the accommodating cavity. The baffle plate 3 is provided with several through holes. The energy of the formed eddy is dissipated under the action of the baffle plate 3, thereby weakening the intensity of the eddy and reducing or avoiding the entrainment of gas above the liquid surface into the liquid.

[0054] like Figure 6 and Figure 7 As shown, optionally, the spoiler 3 is connected to the container body 13 of the container body 1. For example, the spoiler 3 is connected to the bottom of the inner side of the container body 13. The spoiler 3 and the container body 13 can be plugged in or glued together, and no specific limitation is made here.

[0055] like Figure 8 and Figure 9 As shown, optionally, the spoiler 3 is connected to the container lid 14 of the container body 1. When the container lid 14 is connected to the container body 13, the spoiler 3 is located inside the receiving cavity. The spoiler 3 and the container lid 14 can be inserted or glued together, which is not specifically limited here.

[0056] Continue to refer to Figure 1 As shown, the circulation loop assembly provided in this application also includes a first support arm 201. One end of the first support arm 201 is detachably connected to the connection interface 2, and the other end of the first support arm 201 is detachably connected to the control host 100. The container is connected to the control host 100 through the first support arm 201, facilitating the connection between the container and the control host 100. The first support arm 201 is detachably connected to both the connection interface 2 and the control host 100, facilitating the installation and removal of the container, and making it easy to carry after removal.

[0057] like Figures 3 to 5As shown, in some embodiments, the connection interface 2 is a threaded interface, more specifically, the connection interface 2 is a threaded hole, which is used to thread the connection with the connector 5 at one end of the first support arm 201; in other feasible embodiments, the connection interface 2 can also be a bolt, or it can be a snap-fit ​​interface, plug-in interface or other types of connection interface, or it can be a combination of multiple interfaces; correspondingly, the connector 5 is a connection structure adapted to the connection interface 2.

[0058] In some embodiments, a mounting plate 17 is fixed to the bottom of the outer side of the container body 1. The mounting plate 17 has sufficient thickness and a threaded interface is formed on the mounting plate 17. In other feasible embodiments, the threaded interface or other types of connection interfaces may also be formed directly on the container body 1 without the aid of the mounting plate 17 or other structures.

[0059] The circulation loop assembly also includes a blood pump unit 202, a second support arm 203, and a circulation pipeline 204. The blood pump unit 202 is connected to the inlet 11 and outlet 12 of the container via the circulation pipeline 204. One end of the second support arm 203 is detachably connected to the blood pump unit 202, and the other end is detachably connected to the control host 100. The blood pump unit 202 is detachably connected to the control host 100 via the second support arm 203. The overall structure is compact, easy to assemble, disassemble, and carry.

[0060] Optionally, the control host 100 is provided with a first plug-in portion 101 and a second plug-in portion 102. The first plug-in portion 101 is used for detachable connection with the first support arm 201, and the second plug-in portion 102 is used for detachable connection with the second support arm 203. During experiments, demonstrations, or training, the first support arm 201 is plugged into the first plug-in portion 101, and the second support arm 203 is plugged into the second plug-in portion 102. Since in actual products, even when there is no need to fix the container, the control host 100 is also provided with the first plug-in portion 101 and the second plug-in portion 102 to facilitate medical personnel to selectively fix the blood pump unit to the first plug-in portion 101 or the second plug-in portion 102 according to the patient's position, this application does not need to change the structure of the control host 100; simply adding an additional first support arm 201 is sufficient to fix the container position.

[0061] Optionally, both the first plug-in portion 101 and the second plug-in portion 102 include a plug-in interface disposed on the control host 100, and the first support arm 201 or the second support arm 203 is plugged into the plug-in interface.

[0062] Under the action of the blood pump unit 202, the liquid in the container enters the circulation pipeline 204 through the outlet 12, flows through the blood pump unit 202, and then returns to the container through the inlet 11 via the circulation pipeline 204, thereby realizing the circulation of liquid in the circulation loop assembly.

[0063] During experiments, demonstrations, or training, remove the container, blood pump unit 202, circulation tubing 204, first support arm 201, and second support arm 203. One circulation tubing 204 connects the container's inlet 11 to the blood pump unit 202's outlet, and the other circulation tubing 204 connects the container's outlet 12 to the blood pump unit 202's inlet. Pour liquid into the container, shake the container to expel gas from the circulation loop, then install the blood pump unit 202 onto the second support arm 203, which is then mounted on the control host 100. Connect the container to the first support arm 201, which is also mounted on the control host 100, and adjust the orientation of the container and blood pump unit 202. The circulation loop assembly also includes a flow sensor 206 and a regulating valve 207. After adjusting the orientation of the container and the blood pump unit 202, the flow sensor 206 is installed on the circulation pipeline 204 between the container's outlet 12 and the blood pump unit 202, and the regulating valve 207 is installed on the circulation pipeline 204 between the container's inlet 11 and the blood pump unit 202. The flow sensor 206 also serves as a bubble detection device. Optionally, two regulating valves 207 can be provided, one near the blood pump unit 202 and the other near the container, to achieve precise regulation of the liquid flow rate in the circulation loop. After the experiment, demonstration, or training is completed, all components can be disassembled and the liquid in the container can be poured out.

[0064] The blood pump unit 202 can be an implantable blood pump or an external blood pump. The blood pump unit 202 can be a separate structure with a detachable connection between the motor and the pump head, or it can be an integrated structure. The specific structure of the blood pump unit 202 is prior art and will not be described in detail here.

[0065] With the help of the first support arm 201 and the second support arm 203, the position and orientation of the blood pump unit 202 and the container can be flexibly adjusted as needed. The specific structures of the first support arm 201 and the second support arm 203 are also existing technologies and will not be described in detail here. For example, the structure of the first support arm 201 and the second support arm 203 can be referred to patents CN113464805A or CN111473224A.

[0066] Preferably, the first support arm 201 and the second support arm 203 have the same structure, so that they do not need to be specially distinguished when connected to the control host 100, the blood pump unit 202 and the container body 1.

[0067] Both ends of the circulation tubing 204 connected to the container and blood pump unit 202 are wrapped with rigid tubing. The rigid tubing is harder than the circulation tubing 204 to prevent bending at the connection between the circulation tubing 204 and the container or blood pump unit 202, which would affect the experimental, demonstration or training results.

[0068] A temperature indicator sticker 205 is installed on the pump housing of the blood pump unit 202 to indicate the liquid temperature. When the liquid temperature exceeds the threshold, the temperature indicator sticker 205 will change color to indicate that the pump is slowing down or stopping operation. This is to prevent the tubing from softening, the connections from loosening, and the seals from failing due to excessive temperature. It also prevents air bubbles from forming in the liquid due to excessive temperature, which could trigger an alarm.

[0069] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A container for a circulating loop, characterized in that, The container includes a container body (1), which has a receiving cavity for filling liquid. The container body (1) is provided with a connection interface (2) for detachably connecting to the control host (100) of the circulation loop. The container body (1) is provided with a liquid inlet (11) and a liquid outlet (12), which are respectively connected to the receiving cavity.

2. The container for a circulation loop according to claim 1, characterized in that, The connection interface (2) is located at the bottom of the outer side of the container body (1).

3. The container for a circulation loop according to claim 1, characterized in that, A quick-release connector (4) is connected to the liquid inlet (11) and / or the liquid outlet (12).

4. The container for a circulation loop according to claim 1, characterized in that, The inlet (11) and the outlet (12) are arranged facing each other radially along the container body (1).

5. The container for a circulation loop according to claim 4, characterized in that, The container body (1) includes a container body (13) and a container lid (14). The container lid (14) is detachably connected to the container body (13). A handle (15) is provided on the container lid (14) in the radial direction. When the container lid (14) is connected to the container body (13), the radial direction of the handle (15) is consistent with the direction of the line connecting the liquid inlet (11) and the liquid outlet (12).

6. The container for a circulation loop according to claim 1, characterized in that, The inlet (11) is located within the lower third of the receiving cavity; and / or the outlet (12) is located within the lower third of the receiving cavity.

7. The container for a circulation loop according to any one of claims 1-4, 6, characterized in that, The cavity is equipped with a baffle (3).

8. The container for a circulation loop according to claim 7, characterized in that, The container body (1) includes a container body (13), and the spoiler (3) is connected to the container body (13).

9. The container for a circulation loop according to claim 7, characterized in that, The container body (1) includes a container body (13) and a container lid (14). The container lid (14) is detachably connected to the container body (13). The spoiler (3) is connected to the container lid (14). When the container lid (14) is connected to the container body (13) in place, the spoiler (3) is located inside the receiving cavity.

10. The container for a circulation loop according to claim 5, characterized in that, The cavity is equipped with a baffle (3).

11. The container for a circulation loop according to claim 10, characterized in that, The spoiler (3) is connected to the container lid (14). When the container lid (14) is connected to the container body (13) in place, the spoiler (3) is located inside the receiving cavity.

12. A circulating loop assembly, characterized in that, Includes a first support arm (201) and a container for a circulation loop according to any one of claims 1-11, one end of the first support arm (201) being detachably connected to the connection interface (2), and the other end of the first support arm (201) being detachably connected to the control host (100).

13. The loop assembly according to claim 12, characterized in that, The circulation loop assembly also includes a blood pump unit (202), a second support arm (203), and a circulation pipeline (204). The blood pump unit (202) is connected to the inlet (11) and outlet (12) of the container through the circulation pipeline (204). One end of the second support arm (203) is detachably connected to the blood pump unit (202), and the other end of the second support arm (203) is detachably connected to the control host (100).

14. The loop assembly according to claim 13, characterized in that, The first support arm (201) and the second support arm (203) have the same structure.

15. The loop assembly according to claim 13 or 14, characterized in that, The blood pump unit (202) has a temperature indicator sticker (205) on its pump housing, which is used to indicate the liquid temperature.

16. A loop system, characterized in that, The system includes the control host (100) and the loop assembly according to any one of claims 12-15. The control host (100) is provided with a first plug-in portion (101) for detachably connecting to a first support arm (201).

17. The loop system according to claim 16, characterized in that, The control host (100) is also provided with a second plug-in part (102), which is used to detachably connect with the second support arm (203).

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