Adapter, connecting assembly and ventricular assist system

Abstract

The invention relates to an adapter, a connecting assembly and a ventricular assist system. The adapter comprises a shell, a circuit board and a cable assembly. The shell is provided with an accommodating cavity and two connecting ends positioned on the shell, and the two connecting ends can be connected with a connector; the circuit board is arranged in the accommodating cavity of the shell, the circuit board comprises two side plate bodies which are spaced from each other, and the two side plate bodies correspond to the two connecting ends respectively and can be electrically connected with the connectors connected to the connecting ends; the cable assembly is fixedly connected with the shell, the cable assembly comprises a connecting line, and the connecting line is electrically connected with the circuit board. The adapter has high signal transmission performance, the operation stability of the ventricular auxiliary system can be improved, and then the operation reliability of the ventricular auxiliary system is improved.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to an adapter, a connection assembly, and a ventricular assist system. Background Art

[0002] To simultaneously control the operation of multiple VADs in a VAS, the VAS controller must be connected to the devices via an adapter. Traditionally, the adapter is electrically connected to the VAD connector via a cable to achieve continuity in the control circuit. However, this connection method suffers from poor signal transmission performance, resulting in poor VAS operational stability. Summary of the Invention

[0003] Based on this, the present application provides an adapter, a connection component and a ventricular assist system, aiming to improve the signal transmission performance of the adapter, so as to improve the operating stability of the ventricular assist system, and thereby improve the reliability of the operation of the ventricular assist system.

[0004] In one embodiment, the adapter of the present application includes a housing, a circuit board, and a cable assembly. The housing includes a receiving cavity and two connecting ends located on the housing, both of which are capable of being connected to a connector. The circuit board is located in the receiving cavity of the housing and includes two spaced-apart side panels, each corresponding to the two connecting ends and capable of being electrically connected to the connectors connected to the connecting ends. The cable assembly is fixedly connected to the housing and includes a connecting wire, which is electrically connected to the circuit board.

[0005] In one embodiment, the two connecting ends are respectively arranged on opposite sides of the shell, and the arrangement direction of the two connecting ends is recorded as the horizontal direction of the shell, and the two side plates of the circuit board are arranged along the horizontal direction of the shell; the circuit board also includes an inner plate, which is located between the two side plates to be arranged with intervals along the horizontal direction with the two side plates, and the inner plate is electrically connected to the two side plates.

[0006] In one embodiment, the inner plate has a first end portion and a first side portion and a second side portion located on both sides of the first end portion; one of the side plates has a first connecting portion corresponding to the first side portion, and the other side plate has a second connecting portion corresponding to the second side portion; the circuit board further includes at least one of a first connecting plate and a second connecting plate; wherein the first connecting plate connects the first side portion and the first connecting portion, and the first connecting plate is configured in an arc shape and convex outward relative to the spacing area between the inner plate and the side plate;

[0007] The second connecting plate connects the second side portion and the second connecting portion. The second connecting plate is configured to be arc-shaped and convex outward relative to the spacing area between the inner plate and the side plate.

[0008] In one embodiment, the arrangement direction of the two connecting ends is recorded as the horizontal direction of the shell, and the direction perpendicular to the horizontal direction is recorded as the longitudinal direction of the shell; the shell includes a bottom shell and a shell cover arranged along the longitudinal direction, the bottom shell has a first accommodating groove, the shell cover has a second accommodating groove, and the shell cover and the bottom shell are connected so that the first accommodating groove and the second accommodating groove enclose each other to form the accommodating cavity.

[0009] In one embodiment, the cable assembly is fixedly connected to the bottom shell, the connecting wire of the cable assembly passes through the bottom shell and extends into the receiving cavity, the circuit board has a first end and a second end opposite to each other, the first end is received in the first receiving groove of the bottom shell, and the second end is provided with a plurality of wiring portions, the wiring portions being electrically connected to the connecting wire;

[0010] And / or, the cable assembly has an outlet end for the connecting wire to pass through, the outlet end extends along the longitudinal direction of the shell, the bottom shell has a bottom surface and side surfaces located on opposite sides of the bottom surface, wherein the plane passing through the longitudinal axis and the transverse axis of the shell is recorded as the first plane, and the plane tangent to the side surface of the bottom shell is recorded as the second plane, the second plane is parallel to the first plane, the outlet end is connected to the side surface, and is located between the second plane and the first plane.

[0011] In one embodiment, the adapter further includes an insulating avoidance member, which is arranged on the outer periphery of the circuit board, and the insulating avoidance member separates the circuit board and the inner wall surface of the shell; and / or, the connection end is provided with a plug interface, the opening periphery of the plug interface is spaced apart from the side plate body by a first distance for the connector to be inserted and electrically connected to the side plate body, and the inner wall surface of the plug interface is provided with a snap-fitting portion, and the snap-fitting portion can be correspondingly snap-fitted with the mating portion provided on the connector.

[0012] In one embodiment, the adapter further includes at least one of the following four features:

[0013] The shell is configured to be cylindrical or spherical;

[0014] The diameter of the shell gradually decreases from the middle to the two ends;

[0015] The side plate of the circuit board is provided with a plurality of insertion holes for the conductive pins of the connector to be inserted for electrical connection;

[0016] A fixing glue is provided in the receiving cavity of the shell, and the fixing glue at least wraps a portion of the circuit board, wherein a portion of the fixing glue is filled between the circuit board and the inner wall surface of the shell, and another portion of the fixing glue is filled in the spacer area between the two side plates of the circuit board.

[0017] In one embodiment, the inner wall of the housing is provided with an insulating protective film. Optionally, the connection end is provided with an insertion port for inserting the connector; the inner wall of the housing is further provided with an annular groove, the annular groove being adjacent to the insertion port and separating the insulating protective film from the inner wall of the insertion port, so that the inner wall of the insertion port is not covered by the insulating protective film.

[0018] The present application also provides a connection component, which includes an adapter and two connectors; the adapter refers to any one of the above embodiments; the two connectors can be respectively connected to the two connection ends of the adapter to respectively electrically connect with the side plates of the circuit board in the adapter.

[0019] In one embodiment, the connector includes a socket assembly, which is fixedly connected to the connecting end of the adapter and electrically connected to the side plate body of the circuit board located inside the connecting end, and the socket assembly can be connected to the plug assembly.

[0020] In one embodiment, the connector further comprises the plug assembly and the locking sleeve; wherein the plug assembly is connected to the socket assembly on the connecting end; the locking sleeve connects the socket assembly and the plug assembly; the socket assembly comprises a conductive seat and a shell provided on the outer periphery of the conductive seat, the conductive seat can be inserted into the connecting end and electrically connected to the side plate body of the circuit board, the conductive seat is provided with a connecting hole, and the connecting hole can be inserted and matched with the plug assembly; the shell comprises an inserting section and a connecting section, the inserting section can be inserted into the connecting end along with the conductive seat to be fixedly connected to the shell; the connecting section can be provided with the locking sleeve ring.

[0021] In one embodiment, a mating portion is provided on the outer peripheral surface of the plug-in section, and the mating portion can be engaged with a snap-fit portion provided in the connecting end; and / or, the conductive seat is further provided with a conductive pin, and the conductive pin has an inner end located in the connecting hole, and an outer end located outside the connecting hole, the outer end of the conductive pin can be connected to the side plate body of the circuit board, and the inner end of the conductive pin can be inserted and connected with the plug assembly.

[0022] In one embodiment, the connecting end of the connector has a first end face; the outer peripheral surface of the housing is provided with an annular protrusion, and the annular protrusion divides the housing into the plug-in section and the connecting section; the annular protrusion has a first annular surface and a second annular surface, the first annular surface abuts against the first end face of the connecting end, and the second annular surface faces away from the first annular surface; the locking sleeve has a fourth end face opposite to the second annular surface, and the locking sleeve can be looped over the connecting section so that the fourth end face abuts against the second annular surface.

[0023] In one embodiment, the second annular surface is provided with a plurality of slots, and the plurality of slots are arranged along the circumference of the second annular surface; the inner wall surface of the locking sleeve and the connecting section are provided with mutually matching threads, and the fourth end surface of the locking sleeve is provided with a positioning protrusion, and the locking sleeve can be spirally approached toward the annular protrusion on the connecting section, so that the positioning protrusion is correspondingly engaged with one of the slots.

[0024] In one embodiment, the slot has a concave arc surface; a raised portion is formed between two adjacent slots, and the raised portion has a convex arc surface, and both sides of the convex arc surface are smoothly connected with the concave arc surfaces of the two adjacent slots.

[0025] In one embodiment, the conductive seat of the socket assembly has a second end face located at the periphery of the opening of the connecting hole; the plug assembly includes a plug connector, a sealing ring and an inner connecting sleeve; one end of the plug connector is fixedly connected to the inner connecting sleeve, and the other end can be inserted and matched with the connecting hole; the outer peripheral surface of the plug connector is provided with an annular groove, and the annular groove has a first groove side surface opposite to the second end face, and the sealing ring is arranged in the annular groove, and the two side surfaces of the sealing ring are respectively against the first groove side surface and the second end face.

[0026] In one embodiment, the inner wall surface of the shell of the socket assembly is provided with an engaging groove, which is located on the inner wall surface of the connecting section, and has an annular groove surface radially opposite to the annular groove; the plug assembly also includes an outer connecting sleeve, the outer connecting sleeve has a main body and an extension part, the main body is sleeved on the outer periphery of the inner connecting sleeve, the extension part is sleeved on the outer periphery of the plug connector and covers the sealing ring; the extension part has a first surface and a second surface, the first surface is opposite to the bottom surface of the annular groove and is against the sealing ring; the second surface is against the annular groove surface.

[0027] In one embodiment, the inner connecting sleeve has a sleeve portion that is looped around one end of the plug connector; the outer connecting sleeve also has an extrusion portion that is connected to the extension portion and protrudes relatively outward, and the extrusion portion is located on the outer periphery of the sleeve portion; the locking sleeve is looped around the outer connecting sleeve, and the locking sleeve has a receiving groove for accommodating the extrusion portion; wherein, the extrusion portion has a first table surface, a second table surface and a third table surface; the first table surface is opposite to and abuts the third end surface located on the outer shell of the socket assembly; the second table surface is back to the first table surface, and the third table surface connects the first table surface and the second table surface; the receiving groove has a first groove wall and a second groove wall, the first groove wall abuts the second table surface, the second groove wall is looped around the third table surface, and the second groove wall is provided with an expansion groove.

[0028] In one embodiment, the inner wall of the locking sleeve is provided with internal threads that mate with the connecting section of the socket assembly; the expansion groove is provided on the end of the second groove wall away from the internal threads. Optionally, the outer circumference of the locking sleeve is provided with positioning fins that can be inserted into an installation tool for adjusting the rotation of the locking sleeve.

[0029] The present application also provides a ventricular assist system, comprising a first blood pump, a second blood pump, and a connecting assembly; the connecting assembly is similar to the above-described embodiment. One connector of the connecting assembly connects the first blood pump to one connecting end of the adapter, and another connector of the connecting assembly connects the second blood pump to the other connecting end of the adapter. The first blood pump can be installed in the left ventricle of the heart; the second blood pump can be installed in the right ventricle of the heart.

[0030] The adapter of the present application has two connection terminals on its housing, both of which are capable of receiving connectors, thereby enabling the adapter to connect to two connectors. Furthermore, a circuit board is disposed within the housing of the adapter to filter out noise in the control circuit, thereby reducing interference with the control circuit. Thus, when the control circuit transmits signals through the adapter and connector, the noise in the control circuit is filtered out by the circuit board within the adapter, thereby improving the signal transmission performance of the adapter and enhancing the operational stability of the ventricular assist system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic structural diagram of a connection assembly provided in one embodiment of the present application.

[0032] Figure 2 for Figure 1 A partially exploded view of the connected assembly shown.

[0033] Figure 3 A schematic structural diagram of an adapter provided in one embodiment of the present application.

[0034] Figure 4 for Figure 3 Longitudinal section through the adapter shown.

[0035] Figure 5 for Figure 3 Assembly drawing of the circuit board and insulation relief of the adapter shown.

[0036] Figure 6 for Figure 1 Schematic diagram of the structure of the connecting component with the shell cover removed.

[0037] Figure 7 for Figure 6 A local enlarged view at P1.

[0038] Figure 8 for Figure 1 Another partially exploded view of the connection assembly shown.

[0039] Figure 9 for Figure 8 Front view of the connection assembly shown.

[0040] Figure 10 for Figure 9 Cross-section along the AA direction.

[0041] Figure 11 for Figure 10 Schematic diagram of the structure of the right half of the connection component shown.

[0042] Figure 12 for Figure 11 A schematic diagram of the structure of the plug assembly and the socket assembly of the connecting assembly after being matched.

[0043] Figure 13 for Figure 11 A local enlarged view at P2.

[0044] Figure 14 for Figure 1 Schematic diagram of the structure of the housing of the connection component shown.

[0045] Figure 15 for Figure 1 Schematic diagram of the structure of the plug assembly and locking sleeve of the connecting assembly shown.

[0046] Figure 16 for Figure 1 The schematic diagram of the structure of the conductive seat with conductive pins inserted in the connecting component is shown.

[0047] Figure 17 for Figure 16 Cross-section along direction BB.

[0048] Figure 18 for Figure 1 Schematic diagram of the plug connector structure of the connection component shown.

[0049] Figure 19 for Figure 18 Longitudinal section through the plug connector shown.

[0050] Figure 20 for Figure 8 Assembly diagram of the adapter and socket assembly.

[0051] Figure 21 for Figure 20 Schematic diagram of the structural decomposition of the midsole shell and shell cover.

[0052] Figure 22 for Figure 1 A side view of the provided connection assembly.

[0053] Figure 23 for Figure 22 Exploded view of a portion of the connected components.

[0054] Figure 24 A schematic structural diagram of a ventricular assist system provided in another embodiment of the present application.

[0055] Explanation of the reference numerals in the accompanying drawings: 100, adapter; 110, shell; 111, bottom shell; 111a, first receiving groove; 111b, bottom surface; 111c, side surface; 112, shell cover; 112a, second receiving groove; 101, receiving cavity; 102, connecting end; 102a, first connecting end; 102b, second connecting end; 103, plug interface; 104, locking portion; 105, first end surface; 106, annular groove; 106a, first semicircular groove; 106b, second semicircular groove; 107, wire hole; 120, circuit board; 121, side panel; 1211, first connecting portion; 1212, second connecting portion; 121a, first side panel; 121b, second side panel; 123, inner panel ; 1231, first end portion; 1232, second end portion; 1233, first side portion; 1234, second side portion; 124, first flexible side plate; 125, second flexible side plate; 126, jack; 127, wiring portion; 1201, first spacer; 1202, second spacer; 130, insulating avoidance member; 140, cable assembly; 141, connecting wire; 142, outlet terminal; 143, internal portion; 144, external portion; 145, fixing member; 146, fixing hole; 20, connector; 300, socket assembly; 310, housing; 311, plug section; 312, connecting section; 313, annular protrusion; 313a, first annular surface; 313b, second annular surface; 314, slot; 3 15. Raised portion; 316. Fitting groove; 316a. Annular groove wall; 317. Matching portion; 319. Third end face; 320. Conductive seat; 321. Connecting hole; 322. Second end face; 323. Stopping protrusion; 323a. First guide surface; 323b. Stopping surface; 324. Conductive pin; 324a. Outer end; 324b. Inner end; 400. Plug assembly; 410. Plug connector; 411. Annular groove; 411a. Groove bottom surface; 411b. First groove side surface; 411c. Second groove side surface; 412. Large diameter section; 413. Small diameter section; 414. Stopping protrusion; 414a. Second guide surface; 414b. Stopping surface; 415. Fixing groove; 420. Inner connecting sleeve; 421. Sleeve connection Part; 422, inner flange; 430, outer connecting sleeve; 431, main body; 432, extrusion part; 432a, first table; 432b, second table; 432c, third table; 433, extension part; 433a, first surface; 433b, second surface; 440, sealing ring; 500, locking sleeve; 510, fourth end face; 511, positioning protrusion; 520, receiving groove; 521, first groove wall; 522, second groove wall; 530, expansion groove; 540, positioning fin; 30, first blood pump; 40, second blood pump; 50, heart; D1, first spacing; D2, second spacing; S1, first plane; S2, second plane; O1, longitudinal axis; O2, transverse axis; O3, center axis. DETAILED DESCRIPTION

[0056] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0057] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting this application. In addition, if the terms "first" and "second" appear, these terms are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Features defined as "first" and "second" may explicitly or implicitly include at least one of such features. If the term "multiple" appears in this application, "multiple" means at least two, such as two, three, etc., unless otherwise clearly defined.

[0058] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0059] Unless otherwise specified or limited in this application, if a first feature is described as being "above" or "below" a second feature, or similar descriptions appear, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. When a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0060] If an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If terms such as "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions appear in this application for illustrative purposes only and do not represent the only implementation method.

[0061] See also Figure 1 An embodiment of the present application provides an adapter 100, which can be connected to two connectors 20 and can filter out noise in the control circuit to reduce the interference of noise on the control circuit, thereby improving the signal transmission performance of the adapter 100, improving the operating stability of the ventricular assist system, and further improving the reliability of the operation of the ventricular assist system. For example, the adapter 100 can be used to connect to the connectors 20 of the two blood pumps of the ventricular assist system. In other embodiments, the adapter 100 can also be used to connect to the connectors 20 of other electronic control devices, which are not listed here one by one. The following mainly introduces and explains the application of the adapter 100 to the connector 20 of the ventricular assist system as an example.

[0062] See also Figures 1 to 4 In some embodiments, the adapter 100 includes a shell 110, a circuit board 120 and a cable assembly 140; wherein the shell 110 is provided with a receiving cavity 101 and two connecting ends 102, and both connecting ends 102 can be connected to the connector 20; the circuit board 120 is arranged in the receiving cavity 101 of the shell 110, and the circuit board 120 includes two side panels 121 spaced apart from each other, and the two side panels 121 respectively correspond to the two connecting ends 102 and can be electrically connected to the connector 20 connected to the connecting ends 102; the cable assembly 140 is fixed to the shell 110, and the cable assembly 140 includes a connecting wire 141, and the connecting wire 141 is electrically connected to the circuit board 120.

[0063] Specifically, the circuit board 120 within the adapter 100 is a flexible circuit board. The circuitry on the circuit board 120 can selectively pass or suppress signals within a specific frequency range, thereby enabling the circuit board 120 to filter out noise in the control circuit and reduce interference with the control circuit caused by noise. The side panel 121 of the circuit board 120 is provided with a plurality of jacks 126, into which the conductive pins 324 of the connector 20 can be inserted for electrical connection. The two connection terminals 102 are respectively designated as the first connection terminal 102a and the second connection terminal 102b; the arrangement direction of the two connection terminals 102 is designated as the horizontal direction of the housing 110, and the direction perpendicular to the horizontal direction is designated as the longitudinal direction of the housing 110. The two side plates 121 are respectively recorded as the first side plate 121a and the second side plate 121b. The first side plate 121a and the second side plate 121b are arranged at intervals along the horizontal direction of the shell 110, and the first side plate 121a is adjacent to or located at the first connection end 102a; the second side plate 121b is adjacent to or located at the second connection end 102b.

[0064] For example, the two connectors 20 connected to the adapter 100 are designated as a first connector 21 and a second connector 22. The first connector 21 is connected to the first connection end 102a, electrically connecting the first connector 21 to the first side plate 121a of the circuit board 120. The second connector 22 is connected to the second connection end 102b, electrically connecting the second connector 22 to the second side plate 121b of the circuit board 120. Thus, the adapter 100 and the two connectors 20, when connected together, form part of the control circuit.

[0065] The adapter 100 of the present application is provided with two connection ends 102 on the housing 110 of the adapter 100, and a circuit board 120 is provided in the housing 110. The circuit board 121 has two side panels 121. The two side panels 121 correspond to the two connection ends 102 respectively and can be electrically connected to the connector 20 connected to the connection ends 102, thereby realizing that a total cable assembly 140 can be connected to the two connectors 20 through the circuit board 120 in the adapter 100. In addition, the circuit board 120 can filter out noise in the control circuit, thereby reducing the interference of noise on the control circuit. In this way, when the control circuit transmits signals through the adapter 100 and the connector 20, the noise in the control circuit will be filtered out by the circuit board 120 in the adapter 100, thereby improving the signal transmission performance of the adapter 100 and improving the operational stability of the ventricular assist system.

[0066] See also Figure 2 、 Figure 6 and Figure 8In some embodiments, the two connection ends 102 of the adapter 100 (i.e., the first connection end 102a and the second connection end 102b) are respectively arranged at opposite ends of the housing 110. The arrangement direction of the two connection ends 102 is recorded as the horizontal direction of the housing 110, that is, the two connection ends 102 are arranged at both ends of the housing 110 in the horizontal direction. Correspondingly, the two side panels 121 of the circuit board 120 (i.e., the first side panel 121a and the second side panel 121b) are arranged at intervals along the horizontal direction of the housing 110 to correspond one-to-one with the two connection ends 102. Figure 2 As shown, the adapter 100 has a longitudinal axis O1 and a transverse axis O2 passing through the shell 110, the longitudinal axis O1 is perpendicular to the transverse axis O2 and passes through the midpoint of the distance between the two connecting ends 102; wherein, the extension direction of the transverse axis O2 is the transverse direction of the shell 110, and the extension direction of the longitudinal axis O1 is the longitudinal direction of the shell 110.

[0067] When the two connectors 20 (i.e. Figure 2 When the first connector 21 and the second connector 22 in the housing 110 are connected to the two corresponding connection ends 102, the two connectors 20 are arranged in a straight line along the horizontal direction of the housing 110, and the two connectors 20 are located on opposite sides of the housing 110. The spacing between the two connectors 20 is large, and the installation or removal of the two connectors 20 does not interfere with each other. For example, when an assembler connects the first connector 21 to the first connection end 102a and then continues to connect the second connector 22 to the second connection end 102b, the first connector 21 will not block the assembler from connecting the second connector 22.

[0068] Furthermore, the cable assembly 140 is fixed to the housing 110. The cable assembly 140 has an outlet end 142, which extends in the longitudinal direction of the housing 110. The cable assembly 140 is fixed to the housing 110 via the outlet end 142. The connecting wire 141 passes through the outlet end 142 and enters the receiving cavity 101 of the housing 110, and is connected to the circuit board 120. When the socket assemblies 300 of the two connectors 20 (i.e., the first connector 21 and the second connector 22) are respectively fixed to the two connecting ends 102 of the adapter 100, they present a T-shape (see FIG. Figure 8 ). For traditional Y-shaped adapters, the angle between the two connecting ends of the Y-shaped adapter is relatively small. When each connecting end is connected to the plug assembly, it is easily interfered with or blocked by the other connecting end, making the connection operation difficult. However, the adapter 100 of the present application is T-shaped after being fixed to the socket assembly 300. This can increase the distance between the two socket assemblies 300. When one socket assembly 300 is plugged in and out of the plug assembly 400, it will not be interfered with or blocked by the other socket assembly 300, which facilitates the smooth and independent connection of the plug assembly 400 from both sides of the adapter 100.

[0069] See also Figures 3 to 5 In order to facilitate the adapter 100 to enter the human body, the diameter or volume of the shell 110 needs to be designed to be small. Only two side plates 121 may not be sufficient to meet the circuit design requirements. Therefore, in some embodiments, the circuit board 120 also includes an inner plate 123, which is located between the two side plates 121 so as to be arranged with the two side plates 121 along the said transverse spacing; the inner plate 123 is electrically connected to the two side plates 121. In other words, the first side plate 121a, the inner plate 123, and the second side plate 121b are arranged in the receiving cavity 101 along the transverse spacing of the shell 110. In this way, the inner plate 123 and any one of the side plates 121 are separated by a spacing area; wherein, the inner plate 123 and the first side plate 121a are separated by a first spacing area 1201; the inner plate 123 and the second side plate 121b are separated by a second spacing area 1202. This arrangement allows the circuit board 120 to obtain a larger board area to meet circuit design requirements; moreover, the circuit board 120 occupies less space, thereby reducing the size of the accommodating cavity 101 of the shell 110, and further reducing the volume of the shell 110, making it easier for the adapter 100 to be implanted into the human body.

[0070] Optionally, the first side plate 121a and the inner plate 123 and the second side plate 121b are parallel to each other. Alternatively, the first side plate 121a and the second side plate 121b are parallel, while the inner plate 123 is not parallel to the first side plate 121a and the second side plate 121b.

[0071] Please continue reading Figures 3 to 5 In some embodiments, the inner plate 123 has a first end 1231 fixedly connected to the housing 110, and a first side portion 1233 located on one side of the first end 1231. One of the side plates 121 has a first connecting portion 1211 corresponding to the first side portion 1233. The circuit board 120 further includes a first connecting plate 124 that connects the first side portion 1233 and the first connecting portion 1211. Specifically, the first side plate 121a has a first connecting portion 1211, and the first connecting plate 124 electrically connects the first connecting portion 1211 of the first side plate 121a to the first side portion 1233 of the inner plate 123.

[0072] Furthermore, the inner plate 123 further includes a second side portion 1234 located on the other side of the first end portion 1231; the other side plate 121 includes a second connecting portion 1212 corresponding to the second side portion 1234; and the circuit board 120 further includes a second connecting plate 125 that connects the second side portion 1234 and the second connecting portion 1212. Specifically, the second side plate 121b includes a second connecting portion 1212, and the second connecting plate 125 electrically connects the second connecting portion 1212 of the second side plate 121b to the second side portion 1234 of the inner plate 123.

[0073] Optionally, the first connecting plate body 124 is configured to be arc-shaped and convex outward relative to the spacer area (i.e., the first spacer area 1201) between the inward plate body 123 and the side plate body 121. The second connecting plate body 125 is configured to be arc-shaped and convex outward relative to the spacer area (i.e., the second spacer area 1202) between the inward plate body 123 and the side plate body 121. This configuration can make the entire circuit board 120 S-shaped, which not only allows the circuit board 120 to obtain a larger surface area to meet the circuit setting requirements; it can also reduce the risk of the circuit board 120 contacting the inner wall surface of the housing 110, thereby reducing static interference.

[0074] Theoretically, the first connecting plate body 124 and the second connecting plate body 125 are not necessary, and wires can be used to replace the first connecting plate body 124 or the second connecting plate body 125. However, compared to wires, the first connecting plate body 124 and the second connecting plate body 125 can be integrally formed with the inner plate body 123 and the side plate body 121 of the circuit board 120, and bent into an S shape after forming, thereby increasing the surface area of the circuit board 120 for setting the circuit. In addition, the strength of the first connecting plate body 124 and the second connecting plate body 125 is greater than the strength of the wire, so that the inner plate body 123 and the side plate body 121 can support each other through the first connecting plate body 124 and the second connecting plate body 125, ensuring that the inner plate body 123 and the side plate body 121 remain arranged in a horizontally spaced arrangement, thereby preventing the inner plate body 123 from contacting the side plate body 121 during the subsequent process of glue-filling and fixing the circuit board 120.

[0075] See also Figure 2 and Figure 4 In some embodiments, the shell 110 can be configured to be cylindrical or spherical. The shell 110 can include a bottom shell 111 and a shell cover 112 arranged in a longitudinal direction; the bottom shell 111 has a first receiving groove 111a inside, and the shell 110 has a second receiving groove 112a inside; after the shell cover 112 is connected to the bottom shell 111, the first receiving groove 111a of the shell cover 112 and the second receiving groove 112a of the bottom shell 111 cooperate to form the receiving cavity 101. The shell cover 112 and the bottom shell 111 can be detachably connected to enclose the receiving cavity 101. Alternatively, the shell cover 112 and the bottom shell 111 are formed separately and then welded and fixed into one body.

[0076] During assembly, the circuit board 120 can be first installed into the first receiving groove 111a of the bottom shell 111. Then, the assembler can electrically connect the circuit board 120 and the connecting wire 141 of the cable assembly 140 from the top of the bottom shell 111. This can obtain a larger operating space and make it easier for the assembler to connect the connecting wire 141 of the circuit board 120 and the cable assembly 140. Finally, the shell cover 112 can be connected to the bottom shell 111.

[0077] See also Figure 6 and Figure 7 In some embodiments, the cable assembly 140 is fixedly connected to the bottom shell 111. The connecting wire 141 of the cable assembly 140 passes through the bottom shell 111 and extends into the receiving cavity 101 to electrically connect with the circuit board 120 in the receiving cavity 101. The outlet end 142 of the cable assembly 140 extends longitudinally along the housing 110 and is fixedly connected to the bottom shell 111. Optionally, the outlet end 142 is a rigid structure and is welded to the bottom shell 111.

[0078] See also Figures 20 to 23 Furthermore, the bottom shell 111 also has a bottom surface 111b and side surfaces 111c located on opposite sides of the bottom surface 111b, and the outlet terminal 142 is connected to the side surfaces 111c of the bottom shell 111. Figure 8 ) is denoted as the front-to-back direction of the housing 110, and the side surface 111c refers to the front or rear surface of the bottom housing 111. This arrangement allows at least a portion of the outlet terminal 142 to be located on the side surface 111c of the bottom housing 111, thereby shortening the combined height of the housing 110 and the outlet terminal 142 in the longitudinal direction.

[0079] The height of the housing 110 along the longitudinal direction is defined as a first height H1, and the height of the outlet terminal 142 along the longitudinal direction is defined as a second height H2. If the outlet terminal 142 is connected to the bottom surface 111b of the bottom housing 111, then the sum of the longitudinal heights H0 of the housing 110 and the outlet terminal 142 is approximately equal to the sum of H1 and H2, i.e., H0 ≈ H1 + H2. However, in this embodiment, since the outlet terminal 142 is connected to the side surface 111c of the bottom housing 111, at least a portion of the outlet terminal 142 is located on the side surface 111c of the bottom housing 111. The space occupied by the two in the axial direction partially overlaps, and thus the sum of the longitudinal heights H0 of the housing 110 and the outlet terminal 142 is smaller, significantly smaller than the sum of H1 and H2, i.e., H0 < H1 + H2. Obviously, the smaller H0, the shorter the longitudinal length of the adapter 100, making it easier for the adapter 100 to fit into the body.

[0080] See also Figure 22 and Figure 23Furthermore, the plane passing through the longitudinal axis O1 and the transverse axis O2 of the housing 110 is denoted as the first plane S1, and the plane tangent to the side surface 111c of the bottom shell 111 is denoted as the second plane S2. The second plane S2 is parallel to the first plane S1. The outlet terminal 142 has a central axis O3 extending in the longitudinal direction. The central axis O3 is not colinear with the longitudinal axis O1 of the housing 110. The central axis O3 is located between the second plane S2 and the first plane S1, so that the majority of the outlet terminal 142 is located between the second plane S2 and the first plane S1. As a result, the majority of the end surface of the outlet terminal 142 is opposite to and fixedly connected to the side surface 111c of the bottom shell 111 in the longitudinal direction, effectively shortening the sum of the heights H0 of the housing 110 and the outlet terminal 142 in the longitudinal direction. Optionally, the entire outlet terminal 142 is located between the second plane S2 and the first plane S1. This not only shortens the sum H0 of the heights of the housing 110 and the outlet terminal 142 in the longitudinal direction, but also reduces the diameter of the outlet terminal 142 , the volume of the outlet terminal 142 , and the weight of the outlet terminal 142 .

[0081] See also Figure 20 、 Figure 21 and Figure 23 Specifically, a wire hole 107 is provided on the side surface 111c of the bottom shell 111, and the wire hole 107 is connected to the first receiving groove 111a; the wire outlet end 142 is connected to the periphery of the wire hole 107. A plurality of wire fixing holes 146 are provided inside the wire outlet end 142, and the plurality of wire fixing holes 146 are opposite to the wire hole 107. The protective cover of the cable assembly 140 is fixed to the wire outlet end 142, and the plurality of connecting wires 141 of the cable assembly 140 respectively pass through the plurality of wire fixing holes 146, so as to pass through the wire fixing holes 146 and extend into the first receiving groove 111a of the bottom shell 111. This arrangement allows the connecting wire 141 to be positioned by the wire outlet end 142, and the connecting wire 141 cannot easily move significantly, and the connection between the connecting wire 141 and the circuit board 120 is more stable.

[0082] See also Figures 5 to 7In some embodiments, the circuit board 120 is provided with a connection portion 127 for electrical connection of the connecting wire 141. The connection portion 127 may be a soldering groove or a soldering protrusion, allowing the connecting wire 141 to be soldered to the connection portion 127. Considering that after the circuit board 120 is installed in the first receiving groove 111a of the bottom case 111, the gap between the circuit board 120 and the inner wall of the first receiving groove 111a is small, making it difficult to solder the connecting wire 141 to the connection portion 127 of the circuit board 120 within this gap. In view of this situation, in this embodiment, the circuit board 120 has a first end 1231 and a second end 1232 opposite each other. The first end 1231 is fixedly connected to the bottom case 111, and the second end 1232 is provided with multiple connection portions 127, which are electrically connected to the connecting wire 141. Specifically, the first end 1231 and the second end 1232 of the circuit board 120 are both located on the inner plate 123.

[0083] When the circuit board 120 is mounted on the first receiving groove 111a of the bottom case 111, the first end portion 1231 is located in the first receiving groove 111a of the bottom case 111 (see FIG. Figure 2 ), and the second end portion 1232 extends above the first receiving groove 111a. Assemblers can electrically connect the circuit board 120 and the connecting wire 141 of the cable assembly 140 from above the bottom shell 111. This provides a larger operating space, making it easier for assemblers to solder the connecting wire 141 to the wiring portion 127 of the circuit board 120. Finally, the shell cover 112 is placed on and fixed to the bottom shell 111. Specifically, the shell cover 112 can be welded to the bottom shell 111.

[0084] See also Figures 3 to 5 In some embodiments, the adapter 100 further includes an insulating avoidance member 130, which is provided on the outer periphery of the circuit board 120. The insulating avoidance member 130 separates the circuit board 120 from the inner wall surface of the shell 110. The insulating avoidance member 130 can be a clip structure and can be detachably clamped on the outer periphery of the circuit board 120. Specifically, the insulating avoidance member 130 can be clamped on the periphery of the inner plate body 123, or the insulating avoidance member 130 can be clamped on the periphery of the side plate body 121. The insulating avoidance member 130 can separate the circuit board 120 and the inner wall surface of the shell 110, thereby preventing the inner wall surface of the shell 110 from contacting the circuit board 120 and reducing electrostatic interference. In addition, before the shell cover 112 is connected to the bottom shell 111, glue can be poured into the accommodating cavity 101 to further separate the circuit board 120 from the shell 110, reduce electrostatic interference, and enhance electrostatic protection.

[0085] See also Figure 3 、 Figure 4 and Figure 8In some embodiments, the connection end 102 is provided with an insertion port 103. The opening perimeter of the insertion port 103 is spaced apart from the side panel 121 by a first spacing D1, allowing the receptacle assembly 300 of the connector 20 to be inserted and electrically connected to the side panel 121. The connection end 102 also has a first end surface 105. The first end surface 105 refers to the end surface of the connection end 102 facing away from the other connection end 102. The first end surface 105 is disposed at the opening edge of the insertion port 103 and is annular in shape. The first end surface 105 is capable of mating with the connector 20, as described in detail later.

[0086] Exemplarily, the first connection end 102a is provided with a first plug interface 103a, and the socket assembly 300 of the first connector 21 can be inserted into the first plug interface 103a and electrically connected to the first side plate 121a. At this time, the outer peripheral surface of the first connector 21 fits with the inner wall surface of the first plug interface 103a to seal the first plug interface 103a; the second connection end 102b is provided with a second plug interface 103b, and the socket assembly 300 of the second connector 22 can be inserted into the second plug interface 103b and electrically connected to the second side plate 121b. At this time, the outer peripheral surface of the second connector 22 fits with the inner wall surface of the second plug interface 103b to seal the second plug interface 103b.

[0087] See also Figure 2 and Figure 3 Optionally, the inner wall surface of the plug interface 103 is provided with a snap-fit portion 104, and the snap-fit portion 104 can be correspondingly snap-fitted with the mating portion 317 provided on the connector 20. When the connector 20 is inserted into the plug interface 103 on the inner side of the connection end 102, the mating portion 317 on the connector 20 is correspondingly snap-fitted with the snap-fit portion 104 on the inner wall surface of the plug interface 103, so that the connector 20 cannot rotate relative to the plug interface 103, thereby making the socket assembly 300 of the connector 20 connected and fixed to the adapter 100, thereby improving the stability of the connection between the connector 20 and the adapter 100. The snap-fit portion 104 can be set as a protrusion, and the mating portion 317 can be correspondingly set as a groove. In addition, the snap-fit portion 104 can also be set as a groove, and the mating portion 317 can be correspondingly set as a protrusion.

[0088] See 3 and Figure 4 In some embodiments, the housing 110 is cylindrical. The diameter of the housing 110 gradually decreases from its center toward its ends. The first connecting end 102a and the second connecting end 102b are respectively disposed at the ends of the housing 110. This configuration, on the one hand, reduces the size of the housing 110 while also increasing the volume of the housing cavity 101 of the housing 110. On the other hand, it makes the outer surface of the housing 110 smoother, making it easier for the adapter 100 to enter the patient's body through an incision.

[0089] Please refer to 3 to Figure 5In some embodiments, a fixing glue (not shown in the figure) is provided in the receiving cavity 101 of the shell 110, and the fixing glue fixes the circuit board 120 in the receiving cavity 101. The fixing glue at least wraps a portion of the circuit board 120, so that a portion of the fixing glue is filled between the circuit board 120 and the inner wall surface of the shell 110, so as to separate the circuit board 120 and the inner wall surface of the shell 110; and another portion of the fixing glue is filled in the spacing area between the two side panels 121 of the circuit board 120 (such as the first spacing area 1201 and the second spacing area 1202), so as to separate the two side panels 121 of the circuit board 120 and ensure that the two side panels 121 do not contact and interfere with each other. Optionally, the fixing glue is an insulating glue to prevent peripheral interference signals from being transmitted to the circuit board 120 through the fixing glue.

[0090] See also Figure 5 、 Figure 10 and Figure 20 During manufacturing, the circuit board 120 is first placed in the bottom shell 111 of the housing 110, and the connecting wire 141 and the connection portion 127 of the circuit board 120 are welded and fixed. Next, the bottom shell 111 with the circuit board 120 is placed in a glue-filling mold, and glue is poured into the first receiving groove 111a of the bottom shell 111 so that the glue wraps around the circuit board 120, thereby bonding the circuit board 120 to the bottom shell 111. The glue solidifies to form a fixing glue, which includes a first portion of glue located in the first receiving groove 111a of the bottom shell 111 and a second portion of glue connected to the first portion and protruding above the bottom shell 111. The first portion of glue wraps around the lower half of the circuit board 120, and the second portion of glue wraps around the upper half of the circuit board 120. Then, the shell cover 112 is placed on the bottom shell 111, so that the second portion of the fixing glue is accommodated in the second receiving groove 111b of the shell cover 112. Finally, the bottom shell 111 and the shell cover 112 are connected and fixed.

[0091] Furthermore, the inner wall of the housing 110 is provided with an insulating protective film (not shown). This insulating protective film is used to provide insulation and protection, shielding against external interference signals. During manufacturing, the insulating protective film is first affixed to the inner wall of the housing 110, and then the housing cavity 101 of the housing 110 is filled with the fixing glue. The material of the insulating protective film can be, but is not limited to, PI material.

[0092] Considering that after the socket assembly 300 of the connector 20 is inserted into the plug port 103, the outer peripheral surface of the socket assembly 300 needs to be welded and fixed to the housing 110, the inner wall surface of the plug port 103 should not have an insulating protective film. Figure 3 and Figure 4As shown, an annular groove 106 is also provided on the inner wall of the housing 110. The annular groove 106 is adjacent to the plug port 103 and separates the insulating protective film from the inner wall of the plug port 103, so that the inner wall of the plug port 103 is not covered by the insulating protective film. Thus, when the insulating protective film is affixed to the inner wall of the housing 110, if a portion of the insulating protective film extends to the inner wall of the plug port 103, the insulating protective film can be cut along the annular groove 106 to remove the excess portion of the insulating protective film that extends to the inner wall of the plug port 103. This not only allows for smooth cutting of the insulating protective film, but also ensures a smooth cut edge.

[0093] Specifically, if Figure 3 As shown, the annular groove 106 includes a first semicircular groove 106a located on the bottom shell 111 and a second semicircular groove 106b located on the shell cover 112. After the shell cover 112 is placed on the bottom shell 111, the first semicircular groove 106a and the second semicircular groove 106b are correspondingly spliced to form the annular groove 106. In this way, the bottom shell 111 and the shell cover 112 both have corresponding semicircular grooves, so that the insulating protective film can be attached and cut to the inner wall surfaces of the bottom shell 111 and the shell cover 112 separately, reducing the difficulty of operation.

[0094] See also Figure 1 、 Figure 8 and Figure 9 The present application also provides a connection assembly, comprising an adapter 100 and two connectors 20; the two connectors 20 can be connected to the two connection ends 102 of the adapter 100, respectively, to respectively electrically connect to the side panels 121 of the circuit board 120 within the adapter 100. The specific structure of the adapter 100 refers to any of the above-mentioned embodiments. Since the connection assembly of the present application adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be detailed here.

[0095] See also Figures 8 to 10 In some embodiments, the connector 20 includes a receptacle assembly 300. The receptacle assembly 300 is fixedly connected to the connection end 102 of the adapter 100 and electrically connected to the side plate 121 of the circuit board 120 located within the connection end 102. The receptacle assembly 300 is capable of connecting to the plug assembly 400. Because the receptacle assembly 300 is fixedly connected to the connection end 102 of the adapter 100, the connection between the receptacle assembly 300 and the adapter 100 can be more secure and less likely to loosen. The receptacle assembly 300 and the connection end 102 of the adapter 100 can be fixedly connected by welding.

[0096] Please continue reading Figures 8 to 10In some embodiments, connector 20 further includes a plug assembly 400 and a locking sleeve 500. The plug assembly 400 is connected to the receptacle assembly 300 on the connection end 102, and the locking sleeve 500 connects the receptacle assembly 300 and the plug assembly 400. The locking sleeve 500 is detachable, with one portion of the locking sleeve 500 looped around the plug assembly 400 and the other portion looped around the receptacle assembly 300, thereby pressing the plug assembly 400 against the receptacle assembly 300 and improving the secure connection between the receptacle assembly 300 and the plug assembly 400.

[0097] The connection assembly consisting of the connector 20 and the adapter 100 can be manufactured and sold as a kit. In addition, since the socket assembly 300 of the connector 20 is fixedly connected to the connection end 102 of the adapter 100, the socket assembly 300 is equivalent to a part fixedly integrated on the connection end 102 of the adapter 100. In other words, two socket assemblies 300 are integrated on the adapter 100, and the two socket assemblies 300 can be connected to the two plug assemblies 400 respectively. For the convenience of subsequent introduction and description, the combined structure formed by fixing the socket assembly 300 of the connector 20 to the connection end 102 of the adapter 100 is called an integrated connector. The integrated connector is T-shaped, and this T-shaped integrated connector can be connected to the plug assembly 400 from both sides. The integrated connector can be manufactured and sold separately, and the user can provide the plug assembly 400 of the connector 20 by himself.

[0098] See also Figures 10 to 12 In some embodiments, the socket assembly 300 includes a conductive base 320 and a housing 310 disposed around the conductive base 320. The conductive base 320 can be inserted into the connection end 102 and electrically connected to the side plate 121 of the circuit board 120. The conductive base 320 has a connection hole 32, which can be inserted and matched with the plug assembly 400. The housing 310 includes an insertion section 311 and a connection section 312. The insertion section 311 can be inserted into the connection end 102 of the adapter 100 along with the conductive base 320, and the connection section 312 can be looped around the locking sleeve 500.

[0099] See also Figure 2 、 Figure 11 and Figure 14 Optionally, a mating portion 317 is provided on the outer peripheral surface of the plug-in section 311, and the mating portion 317 can be engaged with the locking portion 104 provided in the connecting end 102, so that the plug-in section 311 cannot rotate relative to the plug interface 103 of the connecting end 102, thereby improving the stability of the connection between the socket assembly 300 and the adapter 100.

[0100] See also Figure 11 、 Figure 12 and Figure 14In some embodiments, the connecting end 102 of the adapter 100 has a first end surface 105 (see Figure 4 ); the outer circumferential surface of the shell 310 is also provided with an annular protrusion 313, which divides the shell 310 into an insertion section 311 and a connecting section 312. The insertion section 311 can be inserted into the connecting end 102 of the adapter 100 along with the conductive seat 320; the annular protrusion 313 has a first annular surface 313a and a second annular surface 313b, the first annular surface 313a is against the first end face 105 of the connecting end 102, and the second annular surface 313b is away from the first annular surface 313a; the locking sleeve 500 has a fourth end face 510 opposite to the second annular surface 313b, and the locking sleeve 500 can be put on the connecting section 312, so that the fourth end face 510 is against the second annular surface 313b.

[0101] Specifically, the outer circumference of the connection section 312 of the housing 310 and the inner circumference of the locking sleeve 500 are provided with mating threads, allowing the locking sleeve 500 to be screwed onto the connection section 312. Specifically, the outer wall of the connection section 312 of the socket assembly 300 is provided with external threads, and the inner wall of the locking sleeve 500 is provided with internal threads that mate with the connection section 312 of the socket assembly 300. The internal threads of the locking sleeve 500 and the external threads of the connection section 312 mate, allowing the locking sleeve 500 to be rotatably attached to the connection section 312.

[0102] In the present application, the mating threads are trapezoidal threads, and the inner and outer threads of the trapezoidal threads are tightly attached to each other with a conical surface and are not easy to loosen, thereby improving the connection strength between the locking sleeve 500 and the socket assembly 300. In other embodiments, the mating threads can also be rectangular threads or other threads, which can be set according to actual conditions. After the conductive seat 320 of the socket assembly 300 is inserted into the plug interface 103 of the connection end 102, the outer peripheral surface of the plug section 311 of the shell 310 contacts and mates with the inner wall surface of the plug interface 103; the annular protrusion 313 of the shell 310 is located on the outside of the plug interface 103, and the first annular surface 313a of the annular protrusion 313 is against the first end face 105 of the connection end 102. Then, the locking sleeve 500 is screwed onto the connecting section 312 of the housing 310 until the fourth end surface 510 of the locking sleeve 500 contacts the second annular surface 313 b of the annular protrusion 313 . The plug assembly 400 is correspondingly inserted into the conductive base 320 and electrically connected to the conductive base 320 .

[0103] See also Figure 11 、 Figure 12 and Figure 14 In some embodiments, in order to improve the stability of the connection between the locking sleeve 500 and the connecting section 312, a plurality of slots 314 are provided on the second annular surface 313b, and the plurality of slots 314 are arranged along the circumference of the second annular surface 313b; the fourth end surface 510 of the locking sleeve 500 is provided with a positioning protrusion 511 (see Figure 15 ), the positioning protrusion 511 can be correspondingly engaged with one of the locking grooves 314. When the locking sleeve 500 is screwed onto the connecting section 312 of the housing 310, the locking sleeve 500 is rotated so that the locking sleeve 500 is screwed closer to the annular protrusion 313. When the fourth end surface 510 of the locking sleeve 500 just contacts the second annular surface 313b of the annular protrusion 313, the locking sleeve 500 is further slightly rotated, so that the positioning protrusion 511 on the fourth end surface 510 of the locking sleeve 500 can be correspondingly engaged with one of the locking grooves 314, thereby securing the locking sleeve 500. Without the application of external force, the locking sleeve 500 is unlikely to overcome the restraining force of the positioning protrusion 511 and the locking groove 314, so that the locking sleeve 500 is unlikely to reverse the screw and loosen from the connecting section 312, thereby improving the security of the locking sleeve 500 and the connecting section 312.

[0104] See also Figure 14 and Figure 15 Optionally, the slots 314 have concave arc surfaces; a raised portion 315 is formed between two adjacent slots 314. The raised portion 315 has a convex arc surface, with both sides of the convex arc surface smoothly connecting with the concave arc surfaces of the two adjacent slots 314, resulting in a corrugated second annular surface 313b. This arrangement allows both the slots 314 and the raised portion 315 to be relatively smooth. When the locking sleeve 500 is rotated, the positioning protrusion 511 on the locking sleeve 500 can easily pass from one slot 314 over the raised portion 315 and into the other adjacent slot 314, thereby facilitating removal or installation of the locking sleeve 500.

[0105] See also Figures 10 to 12 In some embodiments, the socket assembly 300 includes a conductive seat 320 and a shell 310 arranged on the outer periphery of the conductive seat 320; the conductive seat 320 has a connecting hole 321; the plug assembly 400 includes a plug connector 410 and an inner connecting sleeve 420; one end of the plug connector 410 is fixedly connected to the inner connecting sleeve 420, and the other end can be inserted and matched with the connecting hole 321.

[0106] Specifically, the connection hole 321 is a blind hole, and the conductive base 320 is provided with a conductive pin 324 in the connection hole 321. The conductive pin 324 passes through the bottom of the connection hole 321, so that the conductive pin 324 has an inner end 324b located in the connection hole 321 and an outer end 324a located outside the connection hole 321 (see Figure 16 and Figure 17 ), the outer end 324a of the conductive pin 324 can be connected to the socket 126 of the circuit board 120 (see Figure 3 and Figure 4 ) plug-in connection, the inner end 324b of the conductive pin 324 can be plug-in connected to the plug connector 410 of the plug assembly 400. In other words, the conductive base 320 is electrically connected to the plug connector 410 through the conductive pin 324.

[0107] Of course, in other embodiments, a conductive pin may be provided on the side panel 121 of the circuit board 120, and a socket may be provided at the bottom of the connection hole 321 of the conductive seat 320, so that the conductive pin on the side panel 121 of the circuit board 120 can pass through the socket into the connection hole 321 and be electrically connected to the plug assembly 400 inserted in the connection hole 321.

[0108] As described above, the adapter 100 can be fixedly connected with the socket assembly 300 to form an integrated connector. The integrated connector can be manufactured and sold separately, and the user can provide the plug assembly 400 that is compatible with the socket assembly 300 of the integrated connector. Figure 20 When manufacturing the integrated connector, firstly connect the outer end 324a (see Figure 11 ) and the jack 126 on the side plate 121 of the circuit board 120 (see Figure 5 ) and weld the conductive pins 324 to the side plate 121 to secure them together. Then, lower the circuit board 120 and the socket assembly 300 into the bottom shell 111. Then, weld the connecting wires 141 to the connection portions 127 of the circuit board 120. Next, weld the bottom shell 111 to the outer shell 310 of the socket assembly 300. Once welding is complete, glue is poured into the bottom shell 111 to secure the circuit board 120. Finally, close the cover 112 onto the bottom shell 111 and weld the cover 112, bottom shell 111, and outer shell 310 of the socket assembly 300 to secure them.

[0109] It will be appreciated that both the bottom shell 111 and the shell cover 112 are provided with engaging portions 104, and the shell 310 of the socket assembly 300 is provided with a plurality of mating portions 317. Some of the mating portions 317 correspond to the engaging portions 104 on the bottom shell 111, thereby securing the shell 310 of the socket assembly 300 to the bottom shell 111 and preventing rotational misalignment during subsequent welding of the shell 310 and the bottom shell 111. Other mating portions 317 correspond to the engaging portions 104 on the shell cover 112, thereby securing the shell 310 of the socket assembly 300 to the shell cover 112 and preventing rotational misalignment during subsequent welding of the shell 310 and the shell cover 112.

[0110] Please continue reading Figures 10 to 13In one embodiment, to improve the sealing performance at the connection between the socket assembly 300 and the plug assembly 400, the conductive base 320 of the socket assembly 300 has a second end face 322 located at the periphery of the opening of the connection hole 321; the outer peripheral surface of the plug connector 410 is provided with an annular groove 411, and the annular groove 411 has a first groove side face 411b opposite to the second end face 322; the plug assembly 400 also includes a sealing ring 440, which is disposed in the annular groove 411. The sealing ring 440 has two lateral side faces along the housing 110 that respectively abut against the first groove side face 411b and the second end face 322.

[0111] like Figure 18 and Figure 19 As shown, specifically, the plug connector 410 includes a large diameter section 412 and a small diameter section 413. The diameter of the large diameter section 412 is larger than that of the small diameter section 413. The large diameter section 412 is fixedly connected to the inner connecting sleeve 420, while the small diameter section 413 is inserted and engaged with the connecting hole 321. An annular groove 411 is provided in the small diameter section 413 adjacent to the large diameter section 412. The annular groove 411 includes a groove bottom surface 411a, a first groove side surface 411b, and a second groove side surface 411c opposite the first groove side surface 411b. The height of the first groove side surface 411b protruding radially outward relative to the groove bottom surface 411a is greater than the height of the second groove side surface 411c protruding radially outward relative to the groove bottom surface 411a, thereby enabling the first groove side surface 411b to face the second end surface 322.

[0112] When the small diameter section 413 of the plug connector 410 is inserted into the connection hole 321 of the socket assembly 300, the sealing ring 440 is clamped by the second end face 322 and the first groove side face 411b, thereby blocking the opening of the connection hole 321 and sealing the connection between the plug connector 410 and the conductive pin 324 in the connection hole 321.

[0113] See also Figures 10 to 13 Optionally, the plug assembly 400 further includes an outer connecting sleeve 430 having a main body 431 and an extension 433. The main body 431 is sleeved around the outer periphery of the inner connecting sleeve 420, and the extension 433 is sleeved around the outer periphery of the plug connector 410. The extension 433 is at least partially located around the outer periphery of the sealing ring 440, thereby pressing the sealing ring 440 into the annular groove 411 and preventing the sealing ring 440 from falling out of the annular groove 411. The inner wall surface of the housing 310 of the receptacle assembly 300 is provided with a recessed engagement groove 316. The engagement groove 316 is located on the inner wall surface of the connecting section 312. The extension 433 of the outer connecting sleeve 430 can extend into the engagement groove 316, thereby being embedded in the inner side of the housing 310 of the receptacle assembly 300. The housing 310 further compresses the sealing ring 440 through the extension 433, thereby improving the sealing performance of the sealing ring 440.

[0114] Furthermore, the connecting section 312 of the housing 310 of the socket assembly 300 has a third end surface 319, and the third end surface 319 is away from the annular protrusion 313; the second end surface 322 of the conductive seat 320 is spaced apart from the third end surface 319 by a second distance D2 (such as Figure 11 (as shown) to prevent the second end surface 322 from blocking the extension portion 433 from inserting into the fitting groove 316. The fitting groove 316 has an annular groove surface 316a that radially opposes the annular groove 411. The extension portion 433 has a first surface 433a and a second surface 433b that oppose each other. The first surface 433a opposes the bottom surface 411a of the annular groove 411 and abuts against the sealing ring 440. The second surface 433b abuts against the annular groove surface 316a. This arrangement further compresses the sealing ring 440 against the housing 310 through the extension portion 433, preventing the sealing ring 440 from deforming radially outward. In combination with the aforementioned sealing ring 440 being clamped by the second end face 322 and the first groove side face 411b, the sealing ring 440 cannot be deformed in the lateral direction, so that the sealing ring 440 can only deform toward the corners / slits in the annular groove 411, so that the deformed part of the sealing ring 440 fills the corners / slits in the annular groove 411, thereby greatly improving the sealing performance of the sealing ring 440.

[0115] See also Figure 12 、 Figure 18 and Figure 19 In one embodiment, the inner connecting sleeve 420 includes a sleeve portion 421 that is looped around one end of the plug connector 410. Specifically, a fixing groove 415 is defined on the outer circumference of the large diameter section 412 of the plug connector 410. The sleeve portion 421 includes an inner flange 422 that loops around the outer circumference of the large diameter section 412 of the plug connector 410, and the inner flange 422 of the sleeve portion 421 is inserted into the fixing groove 415.

[0116] See also Figures 11 to 13Optionally, the outer connecting sleeve 430 further includes an extrusion portion 432 connected between the main body 431 and the extension portion 433. The extrusion portion 432 is radially protruded relative to the main body 431 or the extension portion 433. The extrusion portion 432 is located on the outer periphery of the sleeve portion 421. The locking sleeve 500 is annularly sleeved on the outer connecting sleeve 430, and the locking sleeve 500 has a receiving groove 520 for accommodating the extrusion portion 432. Among them, the extrusion portion 432 has a first table 432a, a second table 432b and a third table 432c. The first table 432a is opposite to and abuts the third end surface 319 of the shell 310 of the socket assembly 300; the second table 432b is opposite to the first table 432a, and the third table 432c is connected between the first table 432a and the second table 432b; the receiving groove 520 has a first groove wall 521 and a second groove wall 522. The first groove wall 521 abuts against the second table 432b, and the second groove wall 522 is ringed on the third table 432c. This arrangement allows the extrusion portion 432 of the outer connecting sleeve 430 to be clamped by the third end face 319 of the shell 310 and the first groove wall 521 of the receiving groove 520 of the locking sleeve 500, thereby fixing the outer connecting sleeve 430 between the socket assembly 300, the locking sleeve 500 and the inner connecting sleeve 420 to prevent the outer connecting sleeve 430 from moving.

[0117] It is taken into consideration that when the extrusion portion 432 is clamped and deformed by the third end face 319 of the housing 310 and the first groove wall 521 of the receiving groove 520 of the locking sleeve 500, if the radial deformation of the extrusion portion 432 is too large, it may cause excessive friction between the external connecting sleeve 430 and the locking sleeve 500, thereby hindering the tightening of the locking sleeve 500. The external force required to rotate the locking sleeve 500 is relatively large, and the installation of the locking sleeve 500 is increased. In view of this, in the present embodiment, a capacity expansion groove 530 is provided in the second groove wall 522. The capacity expansion groove 530 can provide deformation space for the extrusion portion 432, so that the deformed portion of the extrusion portion 432 can be accommodated in the capacity expansion groove 530. As a result, the deformed portion of the extrusion portion 432 is not easily squeezed into between the outer connecting sleeve 430 and the locking sleeve 500, thereby avoiding the generation of large friction between the outer connecting sleeve 430 and the locking sleeve 500, reducing the external force required to rotate the locking sleeve 500, and thus reducing the difficulty of installing the locking sleeve 500.

[0118] It is understood that the second groove wall 522 is located between the first groove wall 521 and the internal threads of the locking sleeve 500. If the expansion groove 530 is located at the end of the second groove wall 522 adjacent to the internal threads of the locking sleeve 500, the expansion groove 530 will be closer to the internal threads of the locking sleeve 500. Therefore, when the extrusion portion 432 is clamped between the third end surface 319 of the housing 310 and the first groove wall 521 of the locking sleeve 500, the portion of the extrusion portion 432 located between the first land 432a and the third land 432c will arch and deform radially outward. A portion of this arched deformation may deviate from the expansion groove 530 and squeeze into the threads between the connecting section 312 of the housing 310 and the locking sleeve 500. Therefore, in this embodiment, to reduce the possibility of this, the expansion groove 530 is located at the end of the second groove wall 522 away from the internal threads of the locking sleeve 500. In this way, when the extrusion portion 432 is clamped by the third end face 319 of the shell 310 and the first groove wall 521 of the locking sleeve 500, the portion of the extrusion portion 432 located between the second table 432b and the third table 432c will arch and deform radially outward, and the arched and deformed portion can be accommodated in the expansion groove 530, while the portion of the extrusion portion 432 located between the first table 432a and the third table 432c is not easy to arch and deform radially outward.

[0119] Of course, in other embodiments, an extrusion protrusion may be further provided on the second groove wall 522. The second groove wall 522 abuts against the third table 432c of the extrusion portion 432 via the extrusion protrusion, thereby reducing the contact area between the locking sleeve 500 and the extrusion portion 432 and increasing the pressure of the locking sleeve 500 on the extrusion portion 432, thereby making the extrusion portion 432 easier to deform, further reducing the force required to rotate the locking sleeve 500, and further reducing the difficulty of tightening the locking sleeve 500.

[0120] See also Figure 11 and Figure 12 In some embodiments, the inner circumference of the connection hole 321 of the socket assembly 300 is provided with a limiting protrusion 323, and the limiting protrusion 323 has a first guide surface 323a facing the opening of the connection hole 321, and a limiting surface 323b facing away from the first guide surface 323a (see Figure 17 ); then combine Figure 18 and Figure 19 Referring to FIG. 4 , the outer peripheral surface of the plug connector 410 of the plug assembly 400 is provided with a stop protrusion 414, and the stop protrusion 414 has a second guide surface 414a and a stop surface 414b facing away from the second guide surface 414a (see FIG. 4 ). Figure 18 and Figure 19 ), the second guide surface 414a can go over the first guide surface 323a, so that the stopping surface 414b is against the limiting surface 323b.

[0121] During the process of inserting the plug connector 410 into the connecting hole 321, when the stop protrusion 414 of the plug connector 410 encounters the first guide surface 323a of the limiting protrusion 323, the second guide surface 414a of the stop protrusion 414 first contacts the first guide surface 323a of the limiting protrusion 323; at this time, an external force is used to push the plug connector 410 so that the second guide surface 414a of the stop protrusion 414 passes over the first guide surface 323a until the stop surface 414b of the stop protrusion 414 abuts against the limiting surface 323b of the limiting protrusion 323, thereby determining that the plug connector 410 has been inserted into the connecting hole 321 and has reached the position for connection with the conductive pin 324. At this time, because the stop protrusion 414 is blocked by the limiting protrusion 323, in the absence of a large external force, the plug connector 410 is not easy to overcome the restraining force of the limiting protrusion 323, and is not easy to loosen from the connecting hole 321, thereby improving the firmness of the connection between the plug connector 410 and the conductive seat 320.

[0122] Optionally, the first guide surface 323a and the limiting surface 323b of the limiting protrusion 323 are both inclined surfaces; the second guide surface 414a and the stopping surface 414b of the stopping protrusion 414 are also inclined surfaces.

[0123] Considering the high stability of the connection between the locking sleeve 500 and the connecting section 312, and the small outer diameter of the locking sleeve 500, which makes manual rotation of the locking sleeve 500 difficult, an installation tool is typically used to fit over the locking sleeve 500. The installation tool then rotates the locking sleeve 500 to remove or install the locking sleeve 500. This installation tool typically includes a collar and a handle attached to the collar. The collar fits around the outer circumference of the locking sleeve 500; turning the handle rotates the locking sleeve 500.

[0124] See also Figure 15 To enhance the secure connection between the installation tool's collar and locking sleeve 500, a positioning fin 540 is provided on the outer circumference of the locking sleeve 500. The collar of the installation tool is also provided with a contoured groove. The contoured groove and the positioning fin 540 have roughly the same profile and dimensions, and the positioning fin 540 fits into the contoured groove of the installation tool. This prevents slippage between the collar of the installation tool and the outer circumference of the locking sleeve 500, preventing the collar from sliding relative to the locking sleeve 500. This improves the secure connection between the collar and the locking sleeve 500 and facilitates the rotation of the locking sleeve 500 by the installation tool.

[0125] See also Figure 24The present application also provides a ventricular assist system, which includes a first blood pump 30, a second blood pump 40, and a connecting assembly. The specific structure of the connecting assembly refers to any of the above embodiments; the two connectors 20 of the connecting assembly are connected to the first blood pump 30 and the second blood pump 40 respectively; and the first blood pump 30 can be installed in the left ventricle of the heart 50; the second blood pump 40 can be installed in the right ventricle of the heart 50. Since the connecting assembly of the present application adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0126] See also Figure 24 The plug assembly 400 of one connector 20 is fixedly connected to the first blood pump 30 through a first cable 31 and can be implanted into the patient's body together with the first blood pump 30; the plug assembly 400 of the other connector 20 is fixedly connected to the second blood pump 40 through a second cable 41 and can be implanted into the patient's body together with the second blood pump 40.

[0127] Since the socket assembly 300 of the connector 20 is fixedly connected to the adapter 100 to form an integrated connector, during surgery, the plug assembly 400 of the connector 20 is first implanted into the body through an incision along with the first blood pump 30 and the second blood pump 40; then, the integrated connector is extended to the vicinity of the incision, and one of the socket assemblies 300 on the integrated connector is connected to the plug assembly 400 of the first blood pump 30 near the incision, and the other socket assembly 300 on the integrated connector is connected to the plug assembly 400 of the second blood pump 40, thereby completing the connection between the two blood pumps and the external controller.

[0128] See also Figure 24 In some embodiments, the connection assembly further includes a fixing member 145, which is disposed on the cable assembly 140. One end of the cable assembly 140 is fixedly connected to the housing 110, and the other end can extend outside the body to connect to an external controller. The fixing member 145 can be fixed to the human body, dividing the cable assembly 140 into an internal portion 143 and an external portion 144.

[0129] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The above-described embodiments only express several implementation methods of the present application, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present application, several variations and improvements can be made, which all fall within the scope of protection of the present application. Therefore, the scope of protection of the patent application of this application shall be based on the attached claims.

Claims

1. An adapter, characterized in that: The adapter comprises: The shell is configured as a cylinder, and the diameter of the shell gradually decreases from the middle to the ends thereof; the shell is provided with two connecting ends, the two connecting ends are respectively provided at the two ends of the shell, and the two connecting ends can be connected to the connector; a circuit board, the circuit board being disposed in the housing, the circuit board comprising two side plates spaced apart from each other, the two side plates corresponding to the two connection ends respectively and capable of being electrically connected to the connectors connected to the connection ends; and a cable assembly, wherein the cable assembly includes a connecting wire, and the connecting wire is electrically connected to the circuit board.

2. The adapter according to claim 1, wherein: The shell is provided with a receiving cavity, and the circuit board is arranged in the receiving cavity; the arrangement direction of the two connecting ends is recorded as the horizontal direction of the shell, and the direction perpendicular to the horizontal direction is recorded as the longitudinal direction of the shell. The cable assembly has an outlet end, and the outlet end extends along the longitudinal direction of the shell. The outlet end is fixed to the shell, and the connecting wire passes through the outlet end and extends into the receiving cavity to be connected to the circuit board.

3. The adapter according to claim 2, characterized in that The shell includes a bottom shell and a shell cover arranged in the longitudinal direction, and the bottom shell and the shell cover are connected to enclose the accommodating cavity; wherein, the bottom shell has a bottom surface and side surfaces located on opposite sides of the bottom surface, and the outlet end is connected to the side surfaces.

4. The adapter according to claim 3, characterized in that: A wire hole is provided on the side of the bottom shell, the wire outlet is connected to the periphery of the wire hole, and a plurality of wire fixing holes are provided inside the wire outlet, and the plurality of wire fixing holes are opposite to the wire hole; the plurality of connecting wires of the cable assembly pass through the plurality of wire fixing holes respectively to be connected to the circuit board; And / or, the plane passing through the longitudinal axis and the transverse axis of the shell is recorded as the first plane, and the plane tangent to the side of the bottom shell is recorded as the second plane, the second plane is parallel to the first plane, and the outlet terminal is located between the second plane and the first plane.

5. The adapter according to claim 3, characterized in that: The outlet end is a hard structure and is welded and fixed to the bottom shell; and / or the cable assembly further has a protective cover, and the protective cover is fixedly connected to the outlet end.

6. The adapter according to claim 1, wherein: The two connecting ends are respectively arranged at opposite ends of the shell, and the arrangement direction of the two connecting ends is recorded as the horizontal direction of the shell, and the two side plates of the circuit board are arranged along the horizontal direction of the shell; the circuit board also includes an inner plate body, which is located between the two side plates to be arranged with intervals along the horizontal direction with the two side plates, and the inner plate body is electrically connected to the two side plates.

7. The adapter according to claim 6, characterized in that The shell includes a bottom shell and a shell cover arranged in the longitudinal direction, and the bottom shell and the shell cover are connected to enclose a receiving cavity for accommodating the circuit board; the inner plate body has a first end and a second end, the first end is fixedly connected to the bottom shell, and the second end is provided with a plurality of wiring parts, and the plurality of wiring parts are electrically connected to the connecting wires.

8. The adapter according to claim 6, characterized in that: The inner plate has a first end portion and a first side portion and a second side portion located on both sides of the first end portion; one of the side plates has a first connecting portion corresponding to the first side portion, and the other side plate has a second connecting portion corresponding to the second side portion; The circuit board further includes at least one of a first connecting plate body and a second connecting plate body, wherein: The first connecting plate connects the first side portion and the first connecting portion, and the first connecting plate is configured to be arc-shaped and convex outward relative to the spacing area between the inner plate and the side plate. The second connecting plate connects the second side portion and the second connecting portion. The second connecting plate is configured to be arc-shaped and convex outward relative to the spacing area between the inner plate and the side plate.

9. The adapter according to any one of claims 1 to 8, characterized in that: The adapter further includes an insulating avoidance member, which is arranged on the outer periphery of the circuit board and separates the circuit board from the inner wall surface of the housing; And / or, the connection end is provided with a plug interface, the opening periphery of the plug interface is spaced apart from the side plate body by a first distance so that the connector can be inserted and electrically connected to the side plate body, and the inner wall surface of the plug interface is provided with a snap-fitting portion, which can be snap-fitted with the matching portion provided on the connector.

10. The adapter according to any one of claims 1 to 8, characterized in that: The adapter further includes at least one of the following four features: The circuit board is a flexible circuit board; The circuit board has a circuit capable of selectively passing or rejecting signals within a specific frequency range; The side plate of the circuit board is provided with a plurality of insertion holes for the conductive pins of the connector to be inserted for electrical connection; A fixing glue is provided in the receiving cavity of the shell, and the fixing glue at least wraps a portion of the circuit board, wherein a portion of the fixing glue is filled between the circuit board and the inner wall surface of the shell, and another portion of the fixing glue is filled in the spacer area between the two side plates of the circuit board.

11. The adapter according to any one of claims 1 to 8, characterized in that: The inner wall surface of the shell is provided with an insulating protective film; the connection end is provided with a plug interface for inserting the connector; the inner wall surface of the shell is also provided with an annular groove, which is adjacent to the plug interface, and the annular groove separates the insulating protective film and the inner wall surface of the plug interface so that the inner wall surface of the plug interface is not covered by the insulating protective film.

12. A connection assembly, characterized in that: The connection component includes: The adapter according to any one of claims 1 to 11; and Two connectors, the two connectors can be connected to the two connecting ends of the adapter respectively, so as to be electrically connected to the side plates of the circuit board in the adapter respectively.

13. The connection assembly according to claim 12, characterized in that The two connectors are arranged in a straight line along the transverse direction of the housing of the adapter.

14. The connection assembly according to claim 12, wherein: The connector includes a socket assembly, which is fixedly connected to the connecting end of the adapter and electrically connected to the side plate body of the circuit board located inside the connecting end. The socket assembly can be connected to the plug assembly.

15. The connection assembly according to claim 14, characterized in that The connector also includes the plug assembly and a locking sleeve; wherein the plug assembly is connected to the socket assembly on the connecting end; the locking sleeve connects the socket assembly and the plug assembly; the socket assembly includes a conductive seat and a shell provided on the outer periphery of the conductive seat, the conductive seat can be inserted into the connecting end and electrically connected to the side plate body of the circuit board, the conductive seat is provided with a connecting hole, and the connecting hole can be inserted and matched with the plug assembly; the shell includes an inserting section and a connecting section, the inserting section can be inserted into the connecting end along with the conductive seat to be fixedly connected to the shell; the connecting section can be provided with the locking sleeve ring.

16. A ventricular assist system, characterized in that: The ventricular assist system includes a first blood pump, a second blood pump, and a connecting assembly as described in any one of claims 12 to 15; one connector of the connecting assembly connects the first blood pump and one connecting end of the adapter, and another connector of the connecting assembly connects the second blood pump and the other connecting end of the adapter; wherein, the first blood pump can be installed in the left ventricle of the heart; and the second blood pump can be installed in the right ventricle of the heart.

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