Ventricular assist system and connection assembly thereof

Abstract

The utility model provides a ventricular assist system and a connecting assembly thereof, the connecting assembly comprises a main body, a first connecting piece connected with a first blood pump, a second connecting piece connected with a second blood pump and a sealing assembly, the main body can be electrically connected with an external device, and the main body is provided with a first electric connecting end and a second electric connecting end; the first connecting piece can be detachably connected with the main body, and when the first connecting piece is connected with the main body, the first connecting piece is electrically communicated with the first electric connecting end and is hermetically connected with the first electric connecting end; the second connecting piece can be detachably connected with the main body, and when the second connecting piece is connected with the main body, the second connecting piece is electrically communicated with the second electric connecting end and is hermetically connected with the second electric connecting end; the sealing assembly can be detachably connected with the main body, and when the sealing assembly is connected with the main body, the sealing assembly covers at least one of the first electric connection end and the second electric connection end and seals at least one of the first electric connection end and the second electric connection end. The ventricular assist system and the connecting assembly thereof can be used in various scenes.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a ventricular assist system and its connecting components. Background Technology

[0002] Heart failure caused by insufficient heart pumping capacity can seriously affect a patient's life. Insufficient heart pumping capacity can be addressed by implanting a blood pump in the patient's body. However, this usually requires an external device to be electrically connected to the blood pump for monitoring. Moreover, it is subject to the different constraints of the internal and external environments. Connectors are usually needed to connect the external device to the blood pump, but the current connectors have relatively limited applicable scenarios and cannot meet the multi-scenario use of blood pumps. Utility Model Content

[0003] Therefore, this application provides a ventricular assist system and its connecting components that can meet the needs of various scenarios.

[0004] A first aspect of this application provides a connection component for a ventricular assist system, the connection component comprising:

[0005] The main body is capable of being electrically connected to an external device, and the main body has a first electrical connection terminal and a second electrical connection terminal;

[0006] A first connector connected to a first blood pump, the first connector being detachably connected to the main body, and when the first connector is connected to the main body, the first connector is electrically connected to the first electrical connection terminal, and the first connector is sealed to the first electrical connection terminal;

[0007] A second connector connected to the second blood pump, the second connector being detachably connected to the main body, and when the second connector is connected to the main body, the second connector is electrically connected to the second electrical connection terminal, and the second connector is sealed to the second electrical connection terminal;

[0008] A sealing assembly is detachably connected to the body, and when connected to the body, the sealing assembly covers at least one of the first electrical connection end and the second electrical connection end, thereby sealing at least one of the first electrical connection end and the second electrical connection end.

[0009] A second aspect of this application provides a ventricular assist system, the ventricular assist system including a first blood pump, a second blood pump, an external device, and the aforementioned connecting components;

[0010] One of the first blood pump and the second blood pump can be installed in the left ventricle of the heart, and the other can be installed in the right ventricle of the heart; the external device is used to supply power to the blood pump connected thereto and / or monitor the blood pump electrically connected thereto;

[0011] The connection component includes:

[0012] The main body is capable of being electrically connected to the external device, and the main body has a first electrical connection terminal and a second electrical connection terminal;

[0013] A first connector connected to a first blood pump, the first connector being detachably connected to the main body, and when the first connector is connected to the main body, the first connector is electrically connected to the first electrical connection terminal, and the first connector is sealed to the first electrical connection terminal;

[0014] A second connector connected to the second blood pump, the second connector being detachably connected to the main body, and when the second connector is connected to the main body, the second connector is electrically connected to the second electrical connection terminal, and the second connector is sealed to the second electrical connection terminal;

[0015] A sealing assembly is detachably connected to the body, and when connected to the body, the sealing assembly covers at least one of the first electrical connection end and the second electrical connection end, thereby sealing at least one of the first electrical connection end and the second electrical connection end.

[0016] Because the main body of the connecting component of the aforementioned ventricular assist system has a first electrical connection terminal and a second electrical connection terminal, the first connector connected to the first blood pump, the second connector connected to the second blood pump, and the sealing component capable of sealing at least one of the first and second electrical connection terminals can all be detachably connected to the main body. This allows the main body to be simultaneously connected to any two of the first connector connected to the first blood pump, the second connector connected to the second blood pump, and the sealing component. Therefore, the connecting component in this application is suitable for applications where, during use, it is necessary to connect the first connector and the second connector to the main body, connect the sealing component to the first connector or the second connector to the main body, or connect only the sealing component. The ventricular assist system's connecting components can meet various usage scenarios, including left ventricular assist only, right ventricular assist only, and dual-heart assist. Therefore, the blood pump can be implanted according to the patient's physical condition, such as implanting a blood pump only in the left heart, only in the right heart, simultaneously implanting blood pumps in both hearts, implanting blood pumps in the left and right hearts sequentially, or removing the blood pumps from the left and right hearts sequentially according to the patient's recovery. Only the corresponding connecting parts (first connecting part or second connecting part) and sealing components need to be replaced, making it more flexible to use. Moreover, the sequential implantation or removal of blood pumps in the left and right hearts does not require replacing the entire blood pump and / or connecting components, which helps to improve the protection of the patient's life safety. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of a first ventricular assist system provided in some embodiments of this application;

[0019] Figure 2 This is a schematic diagram of the structure of a second ventricular assist system provided in some embodiments of this application;

[0020] Figure 3 This is a three-dimensional structural diagram of the connection component for the first combination according to the first embodiment of this application;

[0021] Figure 4 This is a three-dimensional structural diagram of the connecting component for the second combination according to the first embodiment of this application;

[0022] Figure 5 for Figure 4 Exploded view;

[0023] Figure 6 for Figure 5 A sectional view of the main body;

[0024] Figure 7 for Figure 5 The first exploded view of the main structure in the image;

[0025] Figure 8 A second exploded view of the main body from a first perspective, provided for some embodiments of this application;

[0026] Figure 9 This application provides a second exploded view of the main body from a second perspective for some embodiments;

[0027] Figure 10 This is a schematic diagram of the structure of the first connector and the first socket assembly provided in some embodiments of this application;

[0028] Figure 11 Exploded view of the structure of the first connector and the first socket assembly provided in some embodiments of this application;

[0029] Figure 12 An exploded cross-sectional view of a plug, sealing ring, second cable, and first socket assembly provided in some embodiments of this application;

[0030] Figure 13Cross-sectional views of the plug, sealing ring, second cable, and first socket assembly in different connection states according to some embodiments of this application;

[0031] Figure 14 This is a schematic diagram of the structure of the connector provided in some embodiments of this application;

[0032] Figure 15 This is a schematic diagram of the structure of the inner connecting sleeve provided in some embodiments of this application;

[0033] Figure 16 This is a cross-sectional view of the connection between the inner connecting sleeve and the plug provided in some embodiments of this application;

[0034] Figure 17 This is a schematic diagram of the structure of the outer connecting sleeve provided in some embodiments of this application;

[0035] Figure 18 for Figure 17 A sectional view;

[0036] Figure 19 A cross-sectional view showing the connection between a first connector and a first socket assembly provided in some embodiments of this application;

[0037] Figure 20 for Figure 19 A magnified view of part A1 in the middle;

[0038] Figure 21 A cross-sectional view of a second housing provided for some embodiments of this application;

[0039] Figure 22 This is a schematic diagram of the structure of the main body and sealing assembly provided in some embodiments of this application;

[0040] Figure 23 for Figure 22 A sectional view;

[0041] Figure 24 for Figure 23 A magnified view of part A2 in the middle;

[0042] Figure 25 This is a structural diagram of the soft rubber parts and the hard parts;

[0043] Figure 26 This is a schematic diagram of the structure of one combination of the connecting components according to the second embodiment of this application;

[0044] Figure 27 for Figure 26 An exploded view of the connecting components shown;

[0045] Figure 28 for Figure 26 A cross-sectional view of the connecting components shown;

[0046] Figure 29 This is a schematic diagram of the structure of the soft rubber part and the hard part provided in the second embodiment of this application.

[0047] Ventricular assist system 100, first blood pump 1, connecting assembly 2, external device 3, second blood pump 4, main body 10, first connector 20, sealing assembly 30, second connector 40, first electrical connection terminal 10a, second electrical connection terminal 10b, middle shell 11, main shell 101, first cable 12, circuit board 13, first socket assembly 14, second socket assembly 15, first plug interface 11a, second plug interface 11b, horizontal AA, first connecting shell 141, first inner shell base 142, first conductive post 143, second Connecting shell 151, second inner shell seat 152, second conductive post 153, first socket 1420, second socket 134, third socket 1520, fourth socket 135, connector 21, conductive sleeve 22, second cable 23, inner connecting sleeve 24, sealing ring 25, outer connecting sleeve 26, second outer shell 27, fifth socket 210, connecting hole 1421, end stop face 1422, annular groove 211, first groove side surface 211a, inner stop groove 1410, connecting end face 1411, fixing groove 2120, inner flip block 240 Internal protrusion 271, first outer shell 31, first open end O1, second open end O2, sealing plug 301, closed end 3101, soft rubber part 32, hard part 33, first connecting part 311, second connecting part 16, first stop part 312, first stop surface 3120, first inner surface 3110, connecting end surface 1411, first ring body 321, first support column 331, first outer peripheral surface 3310, groove wall surface 141a, groove stop surface 141b, second support column 332, second outer peripheral surface 3320, and so on. One end face 3311, second ring body 322, third support column 333, third outer peripheral surface 3330, second end face 3320, second end face 3321, sealing ring 34, fourth support column 334, abutting end face 3331, fourth outer peripheral surface 3340, limiting protrusion 144, limiting surface 144b, hole wall surface 144c, third ring body 323, third end face 3312, connecting surface 3121, second stop part 313, second stop surface 3130, extension column 3011, protrusion 301a, groove 3230. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0049] In the description of this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal connection of two components; it can be a communication connection; or it can be an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] In the description of this application, the terms "first," "second," "third," etc., are used to distinguish different objects, not to describe a specific order. In addition, the terms "upper," "lower," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.

[0051] Please see Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a first ventricular assist system provided in some embodiments of this application; Figure 2 This is a schematic diagram of the structure of a second ventricular assist system provided in some embodiments of this application.

[0052] like Figure 1 and Figure 2 As shown, in some embodiments, the ventricular assist system 100 includes a first blood pump 1, a connection assembly 2, an external device 3, and a second blood pump 4; the first blood pump 1 may be installed in the left ventricle of the heart, and the second blood pump may be installed in the right ventricle of the heart; the connection assembly 2 connects the external device 3, the first blood pump 1, and / or the second blood pump 4, and the external device 3 is used to supply power to the blood pump connected thereto and / or monitor the blood pump electrically connected thereto.

[0053] The external device 3 can be a power supply, monitoring device, or controller, etc. The external device 3 can be used to power the blood pump, monitor the blood pump's status, and control the blood pump's operation. Specifically, the external device 3 can power the blood pump and / or adjust the blood pump's parameters, and / or display the blood pump's operating parameters. The external device 3 can include at least one of a display screen, buttons, a circuit board, and an integrated circuit.

[0054] Please refer to the following: Figures 1-6 , Figure 3 A three-dimensional structural schematic diagram of the connection component for a first combination provided in some embodiments of this application; Figure 4 A three-dimensional structural schematic diagram of the connection component for a second combination provided in some embodiments of this application; Figure 5 for Figure 4 Exploded view; Figure 6 for Figure 5 A sectional view of the main body.

[0055] like Figures 1-6 As shown, the connecting assembly 2 includes a main body 10, a first connector 20 connected to the first blood pump 1, and a sealing assembly 30 (such as...). Figure 4 (as shown) and the second connector 40 connected to the second blood pump 4 (as shown) Figure 3 (As shown). The main body 10 can be electrically connected to the external device 3, such as... Figure 6 As shown, the main body 10 has a first electrical connection terminal 10a and a second electrical connection terminal 10b. A first connector 20 is detachably connected to the main body 10, and when connected, the first connector 20 is electrically connected to the first electrical connection terminal 10a and is sealed to it. A second connector 40 is detachably connected to the main body 10, and when connected, it is electrically connected to the second electrical connection terminal 10b and is sealed to it. A sealing assembly 30 is detachably connected to the main body 10, and when connected, it covers at least one of the first electrical connection terminal 10a and the second electrical connection terminal 10b, sealing at least one of them.

[0056] Since the main body 10 of the connecting component 2 of the ventricular assist system 100 has a first electrical connection terminal 10a and a second electrical connection terminal 10b, the first connector 20 connected to the first blood pump 1, the second connector 40 connected to the second blood pump 4, and the sealing component 30 capable of sealing at least one of the first electrical connection terminal 10a and the second electrical connection terminal 10b can all be detachably connected to the main body 10. This allows the main body 10 to be simultaneously connected to any two of the first connector 20 connected to the first blood pump 1, the second connector 40 connected to the second blood pump 4, and the sealing component 30. Therefore, the connecting component 2 in this application can be applied to situations where it is necessary to connect the first connector 20 and the second connector 40 to the main body 10, or the sealing component 30 to the first connector 20 or the second connector 40 during use. The ventricular assist system 100 can be connected to the main body 10 in multiple scenarios, such as the connector 40 being connected to the main body 10 and the sealing component 30 being connected to the main body 10. That is, the connecting component 2 of the ventricular assist system 100 can meet various usage scenarios such as left ventricular assist only, right ventricular assist only, and dual-heart assist. Therefore, the blood pump can be implanted according to the patient's physical condition, such as implanting a blood pump only in the left heart, implanting a blood pump only in the right heart, implanting a blood pump in both hearts at the same time, implanting a blood pump in the left and right hearts one after the other, or removing the blood pump in the left and right hearts one after the other according to the patient's recovery. Only the corresponding connector (first connector 20 or second connector 40) and sealing component 30 need to be replaced. It is more flexible to use, and the blood pump does not need to be replaced with the entire blood pump and / or connecting component 2 when the left and right hearts are implanted or removed one after the other, which helps to improve the protection coefficient of the patient's life safety.

[0057] Specifically, when a patient's diagnosis indicates that only one ventricle has insufficient pumping capacity and requires the implantation of a blood pump, such as a second blood pump 4, the second blood pump 4 can be electrically connected to an external device 3 via a second connector 40 and a second electrical connection terminal 10b of the main body 10, while the first connector 20 is sealed to the first electrical connection terminal 10a. At the same time, the sealing component 30 is connected to the main body 10 to seal the second electrical connection terminal 10b of the main body 10, thereby preventing body fluids from contacting the second electrical connection terminal 10b and causing short circuits, leakage, or other situations that could endanger the patient's life. When the pumping capacity of the other ventricle of the patient is also insufficient in the later stage and another blood pump needs to be implanted, such as the first blood pump 1, the sealing component 30 can be removed from the main body 10, and the first connector 20 can be connected to the first electrical connection terminal 10a of the main body 10, so that the first blood pump 1 is electrically connected to the external device 3. Compared with the main body 10 with only one electrical connection terminal when the patient only has one blood pump implanted, and the main body 10 with two electrical connection terminals when the patient has another blood pump implanted, in this application, whether one or two blood pumps are implanted in the patient's body, it is not necessary to replace the main body 10. Moreover, the second blood pump 4 that was originally working still maintains a connection relationship with the main body 10. Therefore, it is not necessary to spend time replacing the main body 10 during the operation, nor is it necessary to spend time connecting the second blood pump 4 to the replaced main body. This helps to reduce the pumping time of the second blood pump 4 that was originally working, or even eliminates the need to stop pumping, thereby improving the protection coefficient of the patient's life safety.

[0058] Furthermore, for some patients, the diagnosis indicates that the pumping capacity of one ventricle has decreased to the point where a blood pump needs to be implanted, while the pumping capacity of the other ventricle is slightly weakened compared to the normal level but can still be treated with medication. In this case, a blood pump can be implanted initially. However, it is expected that the pumping capacity of the other ventricle will also decrease to the point where another blood pump needs to be implanted later. When the blood pump is implanted for the first time, it is connected to the blood pump and the external device 3 through the connecting component 2 in this application. When implanting another blood pump later, it is not necessary to replace the entire connecting component 2, but only to replace the sealing component 30 with the corresponding connector, thereby helping to reduce the treatment cost for the patient.

[0059] Alternatively, if the patient's diagnosis indicates that both a first blood pump 1 and a second blood pump 4 need to be implanted simultaneously, the first connector 20, which is electrically connected to the first blood pump 1, and the second connector 40, which is electrically connected to the second blood pump 4, can be connected to the main body 10, which is electrically connected to the external device 3. During subsequent treatment, if the pumping capacity of one of the patient's ventricles has recovered, the corresponding blood pump and the connector connected to it can be removed, for example, by removing the first blood pump 1 and the first connector 20. In this case, the sealing component 30 can be connected to the main body 10 and placed over the first electrical connection end 10a, sealing the first electrical connection end 10a. This eliminates the need to replace the main body 10 during surgery, reducing the downtime of the first blood pump 1, which is already in operation and needs to continue operating, or even eliminating the need to stop it altogether. This improves the safety of the patient and reduces treatment costs because the main body 10 does not need to be replaced.

[0060] In some scenarios where the connecting component 2 can also be used in this application, during the process of inserting the main body 10 into the patient's body, in order to prevent the first electrical connection end 10a and the second electrical connection end 10b of the main body from coming into contact with body fluids, the sealing component 30 can be connected to the main body 10 and cover the first electrical connection end 10a and the second electrical connection end 10b to seal the first electrical connection end 10a and the second electrical connection end 10b. At this time, neither the first connector 20 nor the second connector 40 can be connected to the main body 10. In this case, one sealing component 30 can be covered on the first electrical connection end 10a and the second electrical connection end 10b at the same time, or two sealing components 30 can be covered on the first electrical connection end 10a and the second electrical connection end 10b respectively.

[0061] In some embodiments, such as Figures 4-6 As shown, when the sealing assembly 30 is connected to the main body 10, the sealing assembly 30 covers the first electrical connection end 10a or the second electrical connection end 10b, thereby sealing the first electrical connection end 10a or the second electrical connection end 10b.

[0062] The sealing assembly 30 is connected to the body 10 to seal the first electrical connection end 10a or the second electrical connection end 10b, which can prevent bodily fluids from contacting the first electrical connection end 10a or the second electrical connection end 10b, thereby allowing a scenario in which one of the electrical connection ends of the body 10 is not connected to the connector.

[0063] like Figure 7 and Figure 8As shown, the main body 10 includes a middle shell 11, a first cable 12, a circuit board 13, a first socket assembly 14, and a second socket assembly 15. The middle shell 11 has a first insertion interface 11a and a second insertion interface 11b; the middle shell 11 can be cylindrical or spherical. The circuit board 13 is disposed within the middle shell 11. One end of the first cable 12 is housed within the middle shell 11 and electrically connected to the circuit board 13, while the other end is connected to the external device 3. The first socket assembly 14 and the second socket assembly 15 are respectively inserted into the first insertion interface 11a and the second insertion interface 11b of the middle shell 11.

[0064] When the first socket assembly 14 and the second socket assembly 15 are respectively plugged into the first plug interface 11a and the second plug interface 11b of the middle shell 11, the first socket assembly 14 and the second socket assembly 15 are respectively connected to the circuit board 13. The first socket assembly 14 and the second socket assembly 15 are arranged in a straight line along the transverse AA of the middle shell 11, and the first socket assembly 14 and the second socket assembly 15 are respectively located on opposite sides of the middle shell 11.

[0065] It should be noted that in other embodiments, the main body 10 may be other structures and is not limited to the examples in this application.

[0066] like Figure 8 and Figure 9 As shown, the first socket assembly 14 includes a first connecting shell 141, a first inner shell base 142, and a first conductive post 143. The first connecting shell 141 is connected to the middle shell 11, which can be a fixed connection, such as welding, or a detachable connection, such as snap-fit. The first inner shell base 142 is disposed inside the first connecting shell 141 and is connected to the circuit board 13. The connection method can be, but is not limited to, plug-in, screw connection, adhesive bonding, etc. The first inner shell base 142 and the circuit board 13 are respectively provided with corresponding first socket 1420 and second socket 134 (e.g., ...). Figure 9 As shown, the first conductive post 143 is inserted into the first socket 1420 and the second socket 134, and is electrically connected to the circuit board 13. The first electrical connection end 10a in this document can be the portion of the first conductive post 143 located within the first inner housing 142, or it can be the end of the first conductive post 143 away from the circuit board 13. The first inner housing 142 can be an open cylindrical shape, and it can be a rigid insulating material, such as a plastic part. It should be noted that in other embodiments, the first socket assembly 14 can also have other structures and is not limited to the examples given herein.

[0067] The second socket assembly 15 includes a second connecting shell 151, a second inner shell base 152, and a second conductive post 153. The second connecting shell 151 is connected to the middle shell 11, which can be a fixed connection, such as welding, or a detachable connection, such as snap-fit. The second inner shell base 152 is disposed inside the second connecting shell 151 and is connected to the circuit board 13. The connection method can be, but is not limited to, plug-in, screw connection, adhesive bonding, etc. The second inner shell base 152 and the circuit board 13 are respectively provided with corresponding third sockets 1520 and fourth sockets 135 (e.g., ...). Figure 8 As shown, the second conductive post 153 is inserted into the third socket 1520 and the fourth socket 135, and is electrically connected to the circuit board 13. The second electrical connection end 10b in this document can be the portion of the second conductive post 153 located within the second inner housing 152, or it can be the end of the second conductive post 153 away from the circuit board 13. The second inner housing 152 can be a rigid insulating material, such as a plastic component. It should be noted that in other embodiments, the second socket assembly 15 can also have other structures and is not limited to the examples given herein.

[0068] The middle shell 11, the first connecting shell 141 and the second connecting shell 151 are connected to form the main shell 101.

[0069] In some embodiments, the first socket assembly 14 is the same as or similar to the second socket assembly 15, and the first connector 20 is the same as or similar to the second connector 40. The first connector 20 can be connected to the second socket assembly 15 or the first socket assembly 14. Similarly, the second connector 40 can be connected to the second socket assembly 15 or the first socket assembly 14.

[0070] In some embodiments, such as Figure 10 As shown, the first connector 20 is connected to the first socket assembly 14. Figure 11 As shown, the first connector 20 includes a plug 21, a conductive sleeve 22, a second cable 23, an inner connecting sleeve 24, a sealing ring 25, an outer connecting sleeve 26, and a second outer shell 27. The second outer shell 27 is detachably connected to the first connecting shell 141, for example, but not limited to, a threaded connection. The plug 21 has a fifth insertion hole 210, and the conductive sleeve 22 is inserted into the fifth insertion hole 210. The conductive sleeve 22 is used for the insertion of the first conductive post 143, and the conductive sleeve 22 is also electrically connected to the second cable 23; for example... Figure 12 As shown, the first inner housing 142 is provided with a connecting hole 1421, which can be a blind hole. One end of the plug 21 is inserted into the connecting hole 1421 of the first inner housing 142 and connected to the first inner housing 142; as shown Figure 13As shown, when the connector 21 is inserted into the first inner housing 142, the first conductive post 143 is inserted into the conductive sleeve 22, thereby realizing the sequential electrical connection of the circuit board 13, the first conductive post 143, the conductive sleeve 22, and the second cable 23.

[0071] Please refer to the following: Figure 12 and Figure 14 To improve the sealing performance at the connection between the first socket assembly 14 and the first connector 20, the first inner shell seat 142 of the first socket assembly 14 has an end stop surface 1422 located at the periphery of the opening of the connection hole 1421; the outer peripheral surface of the plug 21 is provided with an annular groove 211, the annular groove 211 has a first groove side surface 211a opposite to the end stop surface 1422; the sealing ring 25 is disposed in the annular groove 211, and the sealing ring 25 abuts against the first groove side surface 211a and the end stop surface 1422 on both sides of the transverse direction AA of the housing 110, respectively.

[0072] like Figure 12 and Figure 13 As shown, when the connector 21 is inserted into the connection hole 1421 of the first socket assembly 14, the sealing ring 25 is clamped by the end stop surface 1422 and the side surface 211a of the first groove, thereby blocking the opening of the connection hole 1421 and sealing the connection between the connector 21 and the second conductive post 153 in the connection hole 1421.

[0073] like Figure 15 and Figure 16 As shown, the inner connecting sleeve 24 partially loops around the connector 21. Specifically, the outer circumferential surface of the connector 21 is provided with a fixing groove 2120 (e.g., Figure 14 As shown), the inner connecting sleeve 24 has an inwardly turned block 240, which is inserted into the fixing groove 2120.

[0074] Optionally, such as Figure 17 and Figure 18 As shown, the first connector 20 also includes an outer connecting sleeve 26, such as Figure 19 and Figure 20 As shown, the first part of the outer connecting sleeve 26 is fitted around the outer periphery of the inner connecting sleeve 24, and the second part extends and is fitted around the outer periphery of the plug 21. Figure 13 As shown, the inner side of the first connecting shell 141 of the first socket assembly 14 is recessed with an inner stop groove 1410, such as... Figure 20 As shown, the second part of the outer connecting sleeve 26 extends into the inner stop groove 1410 and is located on the outer periphery of the sealing ring 25.

[0075] Optionally, such as Figure 20As shown, the two ends of the first part of the outer connecting sleeve 26 abut against the connecting end face 1411 of the second connecting shell 151 and the inner protrusion 271 of the second outer shell 27, respectively, thereby fixing the outer connecting sleeve 26 between the first socket assembly 14, the second outer shell 27, and the inner connecting sleeve 24, preventing the outer connecting sleeve 26 from moving, and at the same time playing a sealing role.

[0076] The outer connecting sleeve 26 can be a soft rubber part, such as a silicone part.

[0077] In some embodiments, such as Figure 20 As shown, the inner circumferential surface of the connecting hole 1421 of the first inner housing 142 is provided with a limiting protrusion 144; as Figure 14 As shown, the outer peripheral surface of the plug 21 of the first connector 20 is provided with a stop protrusion 214. When the plug 21 is inserted into the connection hole 1421, the stop protrusion 214 of the plug 21 abuts against the limiting protrusion 144 of the first inner shell seat 142.

[0078] Considering the high stability of the connection between the second outer shell 27 and the first connecting shell 141, and the small outer diameter of the second outer shell 27, making it difficult to rotate manually, an installation tool is typically used to rotate the second outer shell 27 for removal or installation. This installation tool generally includes a collar and a handle connected to the collar. The collar can be fitted around the outer circumference of the second outer shell 27; turning the handle rotates the second outer shell 27.

[0079] To improve the secure fit between the installation tool's collar and the second housing 27, such as Figure 11 As shown, a positioning fin 273 protrudes from the outer peripheral surface of the second housing 27, and the collar of the installation tool has a contour groove. The contour groove and the positioning fin 273 are approximately the same in outline and size, allowing the positioning fin 273 to be embedded into the contour groove of the installation tool. This prevents the collar of the installation tool from slipping against the outer peripheral surface of the second housing 27, thus improving the stability between the collar of the installation tool and the second housing 27 and facilitating the rotation of the second housing 27 by the installation tool.

[0080] It should be noted that in other embodiments, the first connector 20 may be other structures and is not limited to the examples in this application.

[0081] Please see Figure 22 , Figure 22 The diagram shows the structure of the main body and sealing assembly provided in some embodiments of this application.

[0082] In some embodiments, such as Figure 22As shown, the sealing assembly 30 includes a first outer shell 31, and the main body 10 includes a main shell 101. The main shell 101 and the first outer shell 31 are detachably and sealingly connected. The first outer shell 31 has a first open end O1 and a second open end O2. When the main body 10 is connected to the sealing assembly 30, the first outer shell 31 is connected to the main shell 101 through the first open end O1. The sealing assembly 30 also includes a sealing plug 301, which is inserted into the second open end O2. The first electrical connection end 10a (e.g., ...) Figure 6 (as shown) and the second electrical connection terminal 10b (as shown) Figure 6 At least one of the components shown can be located within the first sealing cavity (not shown) formed by the main housing 101 and the sealing plug 301.

[0083] Since the sealing plug 301 of the sealing assembly 30 is plugged at the second opening end O2, when the first outer shell 31 is connected to the second connecting shell 151, the first sealing cavity formed by the first outer shell 31, the main shell 101 and the sealing plug 301 can form a first double seal for at least one of the first electrical connection end 10a and the second electrical connection end 10b, so as to reduce the possibility of at least one of the first electrical connection end 10a and the second electrical connection end 10b coming into contact with liquid.

[0084] Specifically, the first outer shell 31 is connected to the first connecting shell 141 or the second connecting shell 151 of the main shell 101. Figure 22 The first outer shell 31 is connected to the second connecting shell 151 in the main shell 101 as an example.

[0085] The first outer shell 31 and the sealing plug 301 are made of different materials. For example, the first outer shell 31 can be a titanium alloy part, and the sealing plug 301 can be a silicone part.

[0086] like Figure 22 As shown, the sealing assembly 30 also includes a soft rubber component 32. When the first outer shell 31 is connected to the main shell 101, the soft rubber component 32 is at least partially disposed between the first outer shell 31 and the main shell 101 so that the main shell 101 and the first outer shell 31 are sealed together.

[0087] The soft rubber part 32 can be, but is not limited to, silicone or rubber. The first outer shell 31 and the main shell 101 can be connected by a thread or by other sleeve connection methods. The soft rubber part 32 can be disposed in the thread gap, or between the end face of the first outer shell 31 and the main shell 101. The soft rubber part 32 can also be disposed between the end face of the main shell 101 and the first outer shell 31.

[0088] Both the first outer shell 31 and the main shell 101 are rigid shells.

[0089] Since the soft plastic part 32 is more easily deformed than the rigid part, when the soft plastic part 32 is at least partially disposed between the first outer shell 31 and the main shell 101, it is more conducive to filling the gap between the first outer shell 31 and the main shell 101, thereby making the main shell 101 and the first outer shell 31 sealed together.

[0090] Figure 22 The example given is that the soft rubber component 32 is at least partially disposed between the first outer shell 31 and the second connecting shell 151. In other embodiments, the soft rubber component 32 may also be at least partially disposed between the first outer shell 31 and the first connecting shell 141.

[0091] like Figure 22 and Figure 23 As shown, the sealing assembly 30 also includes a rigid component 33, and a soft component 32 is at least partially fitted around the outer periphery of the rigid component 33. When the first outer shell 31 is connected to the main shell 101, the soft component 32 and at least part of the rigid component 33 are located in the first sealing cavity, and part of the soft component 32 is clamped between the rigid component 33 and the first outer shell 31, and part is clamped between the rigid component 33 and the main shell 101.

[0092] Among them, the hardness of the rigid part 33 is greater than that of the soft rubber part 32, and the rigid part 33 can be, but is not limited to, a plastic part.

[0093] Since components that come into contact with bodily fluids need to meet biocompatibility requirements, compared to placing the soft rubber component 32 between the end face of the first outer shell 31 and the main shell 101 (with the first outer shell 31 partially fitted onto the outer periphery of the main shell 101), the soft rubber component 32 and the rigid component 33 are located within the first sealing cavity. This allows the soft rubber component 32 to not meet biocompatibility requirements, making its fabrication easier. Furthermore, due to the presence of the first sealing cavity, compared to the case where no rigid component 33 is inserted within the soft rubber component 32, the rigid component 33 can provide better support and positioning, thereby forming a better physical contact surface and resulting in a better sealing effect at the corresponding location.

[0094] In some embodiments, such as Figure 22 and Figure 23 As shown, the first outer shell 31 includes a first connecting portion 311, and the main shell 101 includes a second connecting portion 16 (both the first connecting shell 141 and the second connecting shell 151 include the second connecting portion 16). The first connecting portion 311 can be detachably fitted onto the outer periphery of the second connecting portion 16. The first outer shell 31 and the main shell 101 are connected through the first connecting portion 311 and the second connecting portion 16. The connection between the first connecting portion 311 and the second connecting portion 16 can be, but is not limited to, a threaded connection or other fitting method. Figure 23 and Figure 24As shown, the first outer shell 31 also includes a first stop portion 312, which is connected to the first connecting portion 311. The first stop portion 312 has a first stop surface 3120, and the first connecting portion 311 has a first inner surface 3110. The first stop surface 3120 is connected to the first inner surface 3110. The side of the first connecting portion 311 away from the first stop portion 312 forms a first open end O1. The second connecting portion 16 has a connecting end surface 1411. When the first outer shell 31 is connected to the main shell 101, the first stop surface 3120 and the connecting end surface 1411 are spaced apart and opposite to each other. The soft rubber part 32 includes a first ring body 321, and the hard part 33 includes a first support post 331. The first support post 331 has a first outer peripheral surface 3310. The first ring body 321 is sleeved on the first outer peripheral surface 3310 of the first support post 331. When the first outer shell 31 is connected to the main shell 101, the first support post 331 is located in the first sealing cavity. The first ring body 321 is located radially between the first inner side surface 3110 of the first connecting part 311 and the first outer peripheral surface 3310 of the first support column 331, and the first ring body 321 abuts axially between the connecting end face 1411 of the second connecting part 16 and the first stop face 3120 of the first stop part 312, so that the main shell 101, the first ring body 321 and the first support column 331 together form a second sealing cavity (not shown), and the first electrical connection end 10a or the second electrical connection end 10b is located in the second sealing cavity.

[0095] When the first outer shell 31 is connected to the main shell 101, the first outer shell 31 is connected to the main shell 101 through the first open end O1. The first connecting part 311 of the first outer shell 31 is sleeved on the outer periphery of the second connecting part 16 of the main shell 101. The first ring body 321 is sleeved on the outer periphery of the first support column 331. The first opening end O1 is formed on the side of the first connecting part 311 away from the first stop part 312. The first support column 331 supports the first ring body 321 inside the first ring body 321. The first electrical connection end 10a or the second electrical connection end 10b is located in the second sealing cavity, which is axially abutted between the connecting end face 1411 of the second connecting part 16 and the first stop face 3120 of the first stop part 312. This reduces the possibility of liquid in the gap between the first connecting part 311 and the second connecting part 16 entering the second sealing cavity and coming into contact with the first electrical connection end 10a or the second electrical connection end 10b, thus providing a second sealing for the first electrical connection end 10a or the second electrical connection end 10b.

[0096] The second sealing cavity is smaller than the first sealing cavity.

[0097] The first ring body 321 may not contact the first inner side surface 3110 of the first connecting part 311 radially, or it may only partially contact the first inner side surface 3110 of the first connecting part 311. This helps to reduce the friction between the first outer shell 31 and the first ring body 321 when the first outer shell 31 and the second connecting shell 151 are connected, thereby facilitating the screwing of the first outer shell 31 and the second connecting shell 151.

[0098] The first stop portion 312 and the first connecting portion 311 can be integrally formed or connected by welding or other fixed methods.

[0099] In this article, the axial direction can refer to the axial direction of the first ring body 321, and the radial direction can refer to the radial direction of the first ring body 321.

[0100] In some embodiments, such as Figure 23 and Figure 24 As shown, the inner side of the second connecting part 16 is also provided with an inner stop groove 1410. The opening of the inner stop groove 1410 is located at the connecting end face 1411 of the second connecting part 16. The inner stop groove 1410 has a groove wall surface 141a and a groove stop surface 141b. The groove stop surface 141b is opposite to the opening of the inner stop groove 1410, and the groove wall surface 141a is located between the groove stop surface 141b and the opening of the inner stop groove 1410. The first support column 331 also has a first end face 3311. The rigid part 33 also includes a second support column 332. The second support column 332 is connected to the first end face 3311 of the first support column 331 and is coaxially arranged with the first support column 331. The outer diameter of the second support column 332 is smaller than the outer diameter of the first support column 331. The second support column 332 has a second outer peripheral surface 3320. The soft rubber part 32 also includes a second ring body 322. The second ring body 322 and the first ring body 332 are connected to the first ring body 331. The bodies 321 are connected and coaxially arranged. The outer diameter of the second ring body 322 is smaller than the outer diameter of the first ring body 321. The second ring body 322 is at least partially sleeved on the outer periphery of the second support column 332. When the first outer shell 31 is connected to the main shell 101, the second support column 332 is located in the second sealing cavity. The groove stop surface 141b is opposite to the first end face 3311. The second ring body 322 is located radially between the second outer peripheral surface 3320 of the second support column 332 and the groove wall surface 141a of the inner stop groove 1410. The second ring body 322 abuts axially between the groove stop surface 141b of the inner stop groove 1410 and the first end face 3311 of the first support column 331, so that the main shell 101, the second support column 332 and the second ring body 322 together form a third sealing cavity (not shown). The first electrical connection end 10a or the second electrical connection end 10b is located in the third sealing cavity.

[0101] Since the inner stop groove 1410 is located inside the second connecting part 16, the opening of the inner stop groove 1410 is located at the connecting end face 1411 of the second connecting part 16, the groove wall surface 141a of the inner stop groove 1410 is located between the groove stop surface 141b and the opening, the second ring body 322 is at least partially sleeved on the outer periphery of the second support column 332, when the first outer shell 31 is connected to the main shell 101, the groove stop surface 141b is opposite to the first end face 3311, and the second support column 332 is on the second ring body 322. The interior of 22 supports the second ring 322, and the second ring 322 abuts axially between the groove stop surface 141b of the inner stop groove 1410 and the first end face 3311 of the first support column 331. This helps to reduce the liquid entering the groove wall surface 141a of the inner stop groove 1410 from further entering the third sealing cavity, and contacting the first electrical connection end 10a or the second electrical connection end 10b to perform a third sealing on the first electrical connection end 10a or the second electrical connection end 10b.

[0102] The third sealing cavity is smaller than the second sealing cavity.

[0103] The first support column 331 and the second support column 332 can be integrally formed or connected by welding, gluing, or other methods. The first ring 321 and the second ring 322 can be integrally formed or connected by welding, gluing, or other methods.

[0104] The second ring 322 may not contact the groove wall 141a of the inner stop groove 1410 radially, or it may only partially contact the groove wall 141a of the inner stop groove 1410. This helps to reduce the friction between the second ring 322 and the inner stop groove 1410 when the second ring 322 and the second support column 332 are inserted into the inner stop groove 1410, thereby better inserting the second ring 322 and the second support column 332 into the inner stop groove 1410.

[0105] In some embodiments, such as Figure 22 and Figure 24 As shown, the main body 10 also includes an inner shell seat 150, which (including a first inner shell seat 142 and a second inner shell seat 152) is disposed within the main shell 101 and is at least partially located within the second connecting portion 16; as Figure 24 and Figure 25 As shown, the second support column 332 has a second end face 3321 away from the first support column 331. The rigid component 33 also includes a third support column 333, which is connected to the second end face 3321 of the second support column 332 and is coaxially arranged with the second support column 332. The outer diameter of the third support column 333 is smaller than the outer diameter of the second support column 332, and the third support column 333 has a third outer peripheral surface 3330. Figure 22 and Figure 24As shown, the sealing assembly 30 also includes a sealing ring 34, which is sleeved on the outer periphery of the third support column 333 and coaxially arranged with the third support column 333. The inner shell seat 150 has an end stop surface 1422. When the first outer shell 31 is connected to the main shell 101, the third support column 333 is located in the third sealing cavity. The sealing ring 34 abuts axially between the end stop surface 1422 of the inner shell seat 150 and the second end face 3321 of the second support column 332, and the sealing ring 34 is located radially between the inner peripheral surface of the second ring body 322 and the third outer peripheral surface 3330 of the third support column 333, so that the inner shell seat 150, the third support column 333 and the sealing ring 34 together form a fourth sealing cavity (not shown). The first electrical connection end 10a or the second electrical connection end 10b is located in the fourth sealing cavity.

[0106] When the first outer shell 31 is connected to the main shell 101, the sealing ring 34 is supported radially between the inner circumferential surface of the second ring 322 and the third outer circumferential surface 3330 of the third support column 333. The sealing ring 34 abuts axially between the end stop surface 1422 of the inner shell seat 150 and the second end face 3321 of the second support column 332. This helps to reduce the entry of liquids and other substances between the second ring 322 and the groove stop surface 141b into the fourth sealing cavity, thereby achieving a fourth seal for the first electrical connection end 10a or the second electrical connection end 10b.

[0107] The third support column 333 and the second support column 332 can be integrally formed or connected by welding, gluing or other fastening methods.

[0108] In some embodiments, such as Figure 23 and Figure 25 As shown, the rigid component 33 also includes a fourth support post 334. The fourth support post 334 is connected to the end of the third support post 333 away from the second support post 332, and the fourth support post 334 is coaxially arranged with the third support post 333. The fourth support post 334 can be inserted into the inner shell seat 150 to play a guiding and positioning role.

[0109] Among them, the end face of the third support column 333 away from the second support column 332 is the abutting end face 3331, the outer peripheral surface of the fourth support column 334 is the fourth outer peripheral surface 3340, the inner peripheral surface of the connecting hole 1421 of the first inner shell seat 142 is provided with a limiting protrusion 144, the limiting protrusion 144 has a limiting surface 144b and a hole wall surface 144c, the abutting end face 3331 abuts with the limiting surface 144b, and the fourth outer peripheral surface 3340 enters the connecting hole 1421 along the hole wall surface 144c.

[0110] Among them, the end of the fourth support column 334 away from the third support column 333 is a closed end, so that liquid cannot enter the fourth sealed cavity from the inside of the rigid component 33.

[0111] The fourth support column 334 and the third support column 333 can be integrally formed or connected by welding, gluing or other fastening methods.

[0112] In some embodiments, the first support column 331, the second support column 332, the third support column 333, and the fourth support column 334 are integrally formed structures, the first ring body 321 and the second ring body 322 are integrally formed structures, the inner circumferential surface of the first support column 331 contacts the outer circumferential surface of the first ring body 321, the inner circumferential surface of the second support column 332 contacts the outer circumferential surface of the second ring body 322, and the inner circumferential surface of the third support column 333 contacts the outer circumferential surface of the sealing ring 34, so that when the soft rubber part 32 is sleeved on the hard part 33, each part corresponds to the other.

[0113] Please see Figure 26 , Figure 26 This is a schematic diagram of one combination of the connecting components according to the second embodiment of this application. The structure of the connecting component in this embodiment is roughly the same as that of the connecting component in the first embodiment, except that the structure of the sealing component is different.

[0114] In this embodiment, as Figures 26-28 As shown, the sealing assembly 30 includes a first outer shell 31, and the main body 10 includes a main shell 101, which is detachably connected to the first outer shell 31. When the main body 10 is connected to the sealing assembly 30, the first outer shell 31 is connected to the main shell 101, and the end of the first outer shell 31 away from the main shell 101 is a closed end 3101. The first electrical connection end 10a (e.g., Figure 6 At least one of the first housing 31 and the second electrical connection terminal 10b is located within the first sealed cavity (not shown) formed by the first housing 31 and the main housing 101.

[0115] Since the end of the first outer shell 31 furthest from the first opening end O1 is a closed end 3101, when the first outer shell 31 is connected to the main shell 101, the first outer shell 31 and the main shell 101 form a first sealed cavity, which can form a first double seal for at least one of the first electrical connection end 10a and the second electrical connection end 10b, thereby reducing the possibility of at least one of the first electrical connection end 10a and the second electrical connection end 10b coming into contact with liquid. In addition, since devices that come into contact with bodily fluids need to consider biocompatibility, compared with the second opening end O2 of the first outer shell 31 being plugged by the sealing plug 301, the end of the first outer shell 31 furthest from the main shell 101 being a closed end 3101 can reduce the number of components that come into contact with bodily fluids, thereby reducing the manufacturing difficulty.

[0116] Specifically, the first outer shell 31 is connected to the first connecting shell 141 or the second connecting shell 151 of the main shell 101. Figure 23 The first outer shell 31 is connected to the second connecting shell 151 of the main shell 101 as an example.

[0117] In some embodiments, such as Figure 22 and Figure 23 As shown, the rigid component 33 also has an extension post 3011 extending from the end of the first support post 331 away from the second support post 332, and the extension post 3011 extends at least to the second opening end O2; the sealing plug 301 is a soft component, the sealing plug 301 is sleeved on the outside of the extension post 3011, and is fixed to the end of the first ring body 321 of the soft component 32 away from the second ring body 322. When the first outer shell 31 is connected to the main shell 101, part of the sealing plug 301 is clamped between the extension post 3011 and the hole wall of the second opening end O2 to seal the second opening end O2.

[0118] Since the extension post 3011 supports the sealing plug 301, and the sealing plug 301 is a soft part, when part of the sealing plug 301 is clamped between the extension post 3011 and the hole wall of the second opening end O2, the sealing plug 301 and the hole wall of the second opening end O2 have a better physical contact surface, thus providing a better sealing effect for the second opening end O2.

[0119] Among them, soft parts can be, but are not limited to, silicone parts.

[0120] In some embodiments, the first housing 31 of the sealing assembly 30 has the same shape as the second housing 27 of the first connector 20, so that when the first connector 20 is replaced with the sealing assembly 30, the second housing 27 of the first connector 20 can still be used; and when the sealing assembly 30 is replaced with the first connector 20, the first housing 31 of the sealing assembly 30 can still be used. The first housing 31 and the housing of the second connector 40 may also have the same shape. Therefore, when replacing the sealing assembly 30 with the second connector 40, the description of the replacement parts of the sealing assembly 30 and the first connector 20 can be referred to, and will not be repeated here.

[0121] In some embodiments, the extension post 3011 extends to the second opening end O2, and the sealing plug 301 is also partially located outside the first housing 31.

[0122] In some embodiments, the soft rubber part 32 further includes a third ring body 323, which is connected between the first ring body 321 and the sealing plug 301; the end face of the first support post 331 away from the second support post 332 is a third end face 3312; the first stop part 312 has a stepped structure and also has a connecting surface 3121 connected to the first stop surface 3120; the first outer shell 31 further includes a second stop part 313, which has a second stop surface 3130 connected to the connecting surface 3121; when the main shell 101 is connected to the first outer shell 31, the third ring body 323 at least partially abuts between the third end face 3312 of the first support post 331 and the second stop surface 3130 of the second stop part 313.

[0123] Since the first stop portion 312 has a stepped structure, and the first stop portion 312 also has a connecting surface 3121 that is connected to the first stop surface 3120, the second stop surface 3130 of the second stop portion 313 is connected to the connecting surface 3121, and the third ring body 323 at least partially abuts between the third end face 3312 of the first support column 331 and the second stop surface 3130 of the second stop portion 313, when the end of the first outer shell 31 away from the main shell 101 is the second opening end O2, it can also reduce the liquid entering from the second opening end O2 from further entering between the first connecting portion 311 and the first ring body 321, which is more conducive to sealing the first electrical connection end 10a or the second electrical connection end 10b.

[0124] In some embodiments, such as Figure 24 and Figure 25 As shown, the inner side of the partial sealing plug 301 located inside the first housing 31 is provided with a groove 3230, and the outer peripheral surface of the extension post 3011 located inside the first housing 31 is provided with a protrusion 301a, which cooperates with the groove 3230.

[0125] Compared to the extension post 3011 and the sealing plug 301 relying on friction to prevent them from falling off, the protrusion 301a and the groove 3230 are designed to cooperate, which can reduce the possibility of the sealing plug 301 falling off the extension post 3011.

[0126] In some embodiments, the protrusion 301a is coaxial with the second opening end O2, and the outer diameter of the protrusion 301a is larger than the port diameter of the second opening end O2.

[0127] This prevents the extension post 3011 and the sealing plug 301 located inside the first housing 31 from being pulled out from the second opening end O2.

[0128] In some embodiments, the first support column 331, the second support column 332, the third support column 333, the fourth support column 334, and the extension column 3011 are integrally formed, and the first ring 321, the second ring 322, and the sealing plug 301 are integrally formed. In other embodiments, the sealing plug 301 may also be a separate structure from the soft rubber part 32.

[0129] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0130] The above are the implementation methods of the embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the embodiments of this application, and these improvements and modifications are also considered to be within the protection scope of this application.

Claims

1. A connection component for a ventricular assist system, characterized in that, The connection component includes: The main body is capable of being electrically connected to an external device, and the main body has a first electrical connection terminal and a second electrical connection terminal; A first connector connected to a first blood pump, the first connector being detachably connected to the main body, and when the first connector is connected to the main body, the first connector is electrically connected to the first electrical connection terminal, and the first connector is sealed to the first electrical connection terminal; A second connector connected to the second blood pump, the second connector being detachably connected to the main body, and when the second connector is connected to the main body, the second connector is electrically connected to the second electrical connection terminal, and the second connector is sealed to the second electrical connection terminal; A sealing assembly that is detachably connected to the body, and when connected to the body, the sealing assembly covers at least one of the first electrical connection end and the second electrical connection end, thereby sealing at least one of the first electrical connection end and the second electrical connection end.

2. The connection component of the ventricular assist system according to claim 1, characterized in that, The sealing assembly includes a first outer shell, and the main body includes a main shell, wherein the main shell and the first outer shell are detachably and sealingly connected; wherein: The first outer shell has a first open end and a closed end. The first outer shell is connected to the main shell through the first open end. At least one of the first electrical connection end and the second electrical connection end can be located within a first sealed cavity formed by the first outer shell and the main shell; or The first housing has a first open end and a second open end. The first housing is connected to the main housing through the first open end. The sealing assembly further includes a sealing plug, which is disposed at the second open end. At least one of the first electrical connection end and the second electrical connection end can be located within a first sealing cavity formed by the first housing, the main housing, and the sealing plug.

3. The connection component of the ventricular assist system according to claim 2, characterized in that, The sealing assembly further includes a soft rubber component. When the first outer shell is connected to the main shell, the soft rubber component is at least partially disposed between the first outer shell and the main shell to achieve a sealed connection between the main shell and the first outer shell.

4. The connection assembly of the ventricular assist system according to claim 3, characterized in that, The sealing assembly further includes a rigid component, and the soft rubber component is at least partially fitted around the outer periphery of the rigid component. When the main shell is connected to the first outer shell, the soft rubber component and at least a portion of the rigid component are located within the first sealing cavity, and a portion of the soft rubber component is clamped between the rigid component and the first outer shell, and a portion is clamped between the rigid component and the main shell.

5. The connection assembly of the ventricular assist system according to claim 4, characterized in that, The first outer shell includes a first connecting portion, and the main shell includes a second connecting portion. The first connecting portion can be detachably fitted onto the outer periphery of the second connecting portion. The first outer shell and the main shell are connected through the first connecting portion and the second connecting portion. The first outer shell further includes a first stop portion connected to the first connecting portion. The first stop portion has a first stop surface, and the first connecting portion has a first inner surface. The first stop surface is connected to the first inner surface, and the side of the first connecting portion away from the first stop portion forms the first open end. The second connecting portion has a connecting end surface. When the main shell is connected to the first outer shell, the first stop surface and the connecting end surface are spaced apart and opposite to each other. The soft rubber component includes a first ring body, and the rigid component includes a first support column. The first support column has a first outer peripheral surface. The first ring body is sleeved on the first outer peripheral surface of the first support column. When the main shell is connected to the first outer shell, the first support column is located in the first sealing cavity. The first ring body is located radially between the first inner side surface of the first connecting part and the first outer peripheral surface of the first support column, and the first ring body abuts axially between the connecting end face of the second connecting part and the first stop face of the first stop part, so that the main shell, the first ring body, and the first support column together form a second sealing cavity, and the first electrical connection end or the second electrical connection end is located in the second sealing cavity.

6. The connection assembly of the ventricular assist system according to claim 5, characterized in that, The inner side of the second connecting part is also provided with an inner stop groove. The opening of the inner stop groove is located at the connecting end face of the second connecting part. The inner stop groove has a groove wall surface and a groove stop surface. The groove stop surface is opposite to the opening of the inner stop groove, and the groove wall surface is located between the groove stop surface and the opening of the inner stop groove. The first support column also has a first end face, and the rigid component further includes a second support column. The second support column is connected to the first end face of the first support column and is coaxially arranged with the first support column. The outer diameter of the second support column is smaller than the outer diameter of the first support column, and the second support column has a second outer peripheral surface. The soft rubber component also includes a second ring body, which is connected to and coaxially arranged with the first ring body, and the outer diameter of the second ring body is smaller than the outer diameter of the first ring body; The second ring is at least partially sleeved on the outer periphery of the second support column. When the main shell is connected to the first outer shell, the second support column is located in the second sealing cavity. The groove stop surface is opposite to the first end face. The second ring is located radially between the second outer peripheral surface of the second support column and the groove wall surface of the inner stop groove. The second ring abuts axially between the groove stop surface of the inner stop groove and the first end face of the first support column, so that the main shell, the second support column and the second ring together form a third sealing cavity. The first electrical connection end or the second electrical connection end is located in the third sealing cavity.

7. The connection assembly of the ventricular assist system according to claim 6, characterized in that, The main body also includes an inner shell seat, which is disposed inside the main shell and is at least partially located within the second connecting portion; The second support column has a second end face away from the first support column. The rigid component also includes a third support column, which is connected to the second end face of the second support column and is coaxially arranged with the second support column. The outer diameter of the third support column is smaller than the outer diameter of the second support column, and the third support column has a third outer peripheral surface. The sealing assembly further includes a sealing ring, which is sleeved on the outer periphery of the third support column and coaxially arranged with the third support column. The inner shell seat has an end stop surface. When the main shell is connected to the first outer shell, the third support column is located in the third sealing cavity. The sealing ring abuts axially between the end stop surface of the inner shell seat and the second end face of the second support column, and the sealing ring is located radially between the inner circumferential surface of the second ring body and the third outer circumferential surface of the third support column, so that the inner shell seat, the third support column and the sealing ring together form a fourth sealing cavity, and the first electrical connection end or the second electrical connection end is located in the fourth sealing cavity.

8. The connection assembly of the ventricular assist system according to claim 6 or 7, characterized in that, The rigid component further has an extension post extending from one end of the first support post away from the second support post, and the extension post extends at least to the second opening end. The sealing plug is a soft component. The sealing plug is sleeved on the outside of the extension post and fixed to the end of the first ring of the soft rubber component away from the second ring. When the main shell is connected to the first outer shell, part of the sealing plug is clamped between the extension post and the hole wall of the second opening end to seal the second opening end.

9. The connection assembly of the ventricular assist system according to claim 8, characterized in that, The soft rubber component also includes a third ring body, which is connected between the first ring body and the sealing plug; The end face of the first support column that is furthest from the second support column is the third end face; The first stop portion has a stepped structure and a connecting surface that is connected to the first stop surface. The first housing also includes a second stop portion, which has a second stop surface that is connected to the connecting surface. When the main shell is connected to the first outer shell, the third ring body at least partially abuts between the third end face of the first support column and the second stop face of the second stop portion.

10. A ventricular assist system, characterized in that, The ventricular assist system includes a first blood pump, a second blood pump, an external device, and a connection component as described in any one of claims 1 to 9; One of the first blood pump and the second blood pump can be installed in the left ventricle of the heart, and the other can be installed in the right ventricle of the heart; the external device is used to supply power to the blood pump connected thereto and / or monitor the blood pump electrically connected thereto; The connection component includes: The main body is capable of being electrically connected to the external device, and the main body has a first electrical connection terminal and a second electrical connection terminal; A first connector connected to the first blood pump, the first connector being detachably connected to the main body, and when the first connector is connected to the main body, the first connector is electrically connected to the first electrical connection terminal, and the first connector is sealed to the first electrical connection terminal; A second connector connected to the second blood pump, the second connector being detachably connected to the main body, and when the second connector is connected to the main body, the second connector is electrically connected to the second electrical connection terminal, and the second connector is sealed to the second electrical connection terminal; A sealing assembly is detachably connected to the body, and when connected to the body, the sealing assembly covers at least one of the first electrical connection end and the second electrical connection end, thereby sealing at least one of the first electrical connection end and the second electrical connection end.

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