Connector and blood pump system

Abstract

The application relates to a connector and a blood pump system, the connector comprising a female connector and a male connector; wherein the female connector comprises a female terminal seat and a socket installed on the female terminal seat; the male connector comprises a male terminal seat and a plug installed on the male terminal seat, the plug being capable of being inserted into the socket to be electrically connected with the socket; a plurality of pins for electrical connection of the socket are arranged on the outer peripheral wall of the plug, the pins are in strip shapes and extend along the length direction of the plug, and the plurality of pins are arranged at intervals along the circumference of the plug. In this way, by arranging the pins of the plug on the male connector in strip shapes and extending along the length direction of the plug, and by arranging the plurality of pins at intervals along the circumference of the plug, the length of the plug can be reduced, the size of the connector can be effectively reduced, and the implantation of the connector is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connectors, in particular to a connector and a blood pump system. BACKGROUND

[0002] A blood pump is usually applied to pump blood from a venous system or a heart into an arterial system to partially or wholly replace a ventricle to work as an artificial mechanical device. In the related art, in order to enhance the treatment effect, a plurality of blood pumps are usually implanted at the same time, and each blood pump is connected to a controller through a connector. However, the volume of the conventional connector is large, which is difficult to implant into a patient's body and is easy to cause serious health hazards to the patient. SUMMARY

[0003] The present application provides a connector and a blood pump system, aiming at the problem that the volume of the conventional connector is large and difficult to implant into a patient's body.

[0004] The connector provided by the present application, in one embodiment, comprises a female connector and a male connector; the female connector comprises a female terminal seat and a socket arranged on the female terminal seat; the male connector comprises a male terminal seat and a plug arranged on the male terminal seat, the plug being capable of being inserted into the socket to be electrically connected with the socket; wherein a plurality of pins for electrical connection of the socket are arranged on the outer peripheral wall of the plug, the pins are in strip shape and extend along the length direction of the plug, and the plurality of pins are arranged at intervals along the circumference of the plug.

[0005] In one embodiment, the plug comprises a center column, a contact connected to the end of the center column, and a mounting portion surrounding the outer periphery of the center column; a plurality of pins are arranged on the outer peripheral wall of the mounting portion.

[0006] In one embodiment, at least one convex pin protruding from the outer wall surface of the plug is included in the plurality of pins; the socket is provided with a plug-in hole for insertion of the plug, and the inner wall surface of the plug-in hole is provided with a pin groove extending along the depth direction of the plug-in hole for insertion and cooperation of the convex pin.

[0007] In one embodiment, the number of convex pins is at least two, and the width of at least one of the convex pins is different from the width of another convex pin.

[0008] In one embodiment, the outer peripheral wall of the plug is further provided with a guide protrusion extending along the length direction of the plug; the socket is provided with a plug-in hole for insertion of the plug, and the inner wall surface of the plug-in hole is further provided with a guide groove extending along the depth direction of the plug-in hole for insertion and cooperation of the guide protrusion.

[0009] In one of the embodiments, the guide protrusion is arranged on the outer wall surface of the plug between two adjacent pins.

[0010] In one of the embodiments, the connector further comprises a fixing sleeve having a first sleeve portion and a second sleeve portion axially connected along the fixing sleeve; the first sleeve portion is capable of sleeving the male terminal seat, and the second sleeve portion is capable of sleeving the socket to fix the male terminal seat and the socket.

[0011] In one of the embodiments, the male connector further comprises a male cable connected with the male terminal seat; the fixing sleeve further comprises a third sleeve portion connected with the end of the first sleeve portion away from the second sleeve portion, and the third sleeve portion is capable of sleeving the end of the male cable close to the male terminal seat.

[0012] In one of the embodiments, a stop step is arranged on the male terminal seat at the connection with the male cable, and the stop step protrudes radially along the male cable; an inner wall surface at the connection between the third sleeve portion and the first sleeve portion is provided with a stop matching portion for abutting the stop step.

[0013] In one of the embodiments, the inner diameter of the third sleeve portion is smaller than the inner diameter of the first sleeve portion.

[0014] In one of the embodiments, the inner diameter of the third sleeve portion gradually decreases from the first sleeve portion in the direction away from the second sleeve portion, so that the third sleeve portion is in interference fit with the male cable.

[0015] In one of the embodiments, the inner wall surface of the third sleeve portion forms an included angle with the axis of the fixing sleeve, and the included angle ranges from 1° to 10°.

[0016] In one of the embodiments, the outer peripheral surface of the male cable is provided with a limiting protrusion, and the limiting protrusion is arranged in the length direction of the male cable and spaced apart from the stop step, so that the end surface of the fixing sleeve is abutted.

[0017] In one of the embodiments, the female terminal seat of the female connector is provided with a mounting groove for mounting the socket, and an end surface surrounding the groove ring; after the second sleeve portion is sleeved with the socket, the end surface of the second sleeve portion is spaced apart from the end surface of the female terminal seat to form a gap.

[0018] In one of the embodiments, the connector further comprises a sealing ring; the socket has a plug hole for the plug to be inserted, and a plug end face surrounding the opening periphery of the plug hole and opposite to the end face of the male terminal seat; at least one of the plug end face and the end face of the male terminal seat is provided with a sealing groove for the sealing ring to be installed.

[0019] In one of the embodiments, the outer peripheral wall of the fixing sleeve is provided with an anti-skid structure.

[0020] The application further provides a blood pump system, which comprises a blood pump, a controller and a connector. The female connector of the connector is connected with one of the blood pump and the controller through a female end cable, and the male connector of the connector is connected with the other one of the blood pump and the controller through a male end cable. The connector comprises a female connector and a male connector; the female connector comprises a female terminal seat and a socket arranged on the female terminal seat; the male connector comprises a male terminal seat and a plug arranged on the male terminal seat, the plug being capable of being inserted into the socket to be electrically connected with the socket; the outer peripheral wall of the plug is provided with a plurality of pins for the socket to be electrically connected, the pins are in strip shape and extend along the length direction of the plug, and the plurality of pins are arranged at intervals along the circumference of the plug.

[0021] The technical scheme of the application, by setting the plurality of pins on the plug of the male connector in strip shape, extending along the length direction of the plug, and arranging the plurality of pins at intervals along the circumference of the plug, reduces the space occupied by the plurality of pins in the length direction of the plug, and accordingly the length of the plug can be shortened, and the size of the connector is effectively reduced, which not only greatly reduces the difficulty of implanting the connector into the patient's body, but also reduces the health risks of the connector to the patient. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The structure schematic view of the blood pump system provided by the application;

[0023] Figure 2 The overall structure schematic view of the connector provided by the application;

[0024] Figure 3 The Figure 2 The longitudinal sectional view of the connector shown in A;

[0025] Figure 4 The Figure 3 The local enlarged view at A;

[0026] Figure 5 The Figure 2 The exploded structure schematic view of the connector shown in B;

[0027] Figure 6 for Figure 5 A magnified view of the area at point B;

[0028] Figure 7 for Figure 5 A schematic diagram of another embodiment of the plug;

[0029] Figure 8 for Figure 5 The longitudinal sectional view of the connector shown;

[0030] Figure 9 for Figure 8 A magnified view of the area at point C;

[0031] Figure 10 for Figure 2 The longitudinal sectional view of the fixed sleeve shown.

[0032] Explanation of reference numerals in the attached figures:

[0033] Reference Name Reference Name 1000 Blood pump system 223 Mounting portion 100 Connector 2231 Guide protrusion 10 Female connector 2201 Pin 11 Female terminal block 23 Male cable 12 Socket 231 Limiting protrusion 121 Plug hole 30 Fixing sleeve 122 Pin slot 301 Anti-skid structure 123 Guide slot 31 First sleeving portion 124 Sealing groove 32 Second sleeving portion 13 Female cable 33 Third sleeving portion 20 Male connector 331 Stop matching portion 21 Male terminal block 40 Sealing ring 211 Stop step 50 Gap 22 Plug 200 Blood pump 221 Center column 300 Controller 222 Contact Detailed Implementation

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In related technologies, the blood pump is connected to a controller via a connector. This connector includes a female connector and a male connector; the male connector has a plug that can be inserted into the female connector, and this plug has multiple pins that can be electrically connected to the female connector. However, in conventional male connectors, the multiple pins are arranged in a ring around the outer periphery of the plug, and the multiple pins are spaced apart along the length of the plug. To ensure a sufficient number of pins, the plug must be designed to be long enough to provide sufficient installation space for these pins. This results in a long plug, and consequently, a long connector, leading to a large connector size. This not only makes it difficult to implant in the patient but also poses serious health risks to the patient.

[0038] Please see Figure 1 In view of the above problems, the present invention proposes a connector 100, which can connect the blood pump 200 to the controller 300. The connector 100 can shorten the length of the plug, thereby reducing the volume of the connector 100, effectively reducing the difficulty of implanting the connector 100 into the patient's body, and is less likely to cause health risks to the patient. The connector 100 of the present invention will be described in detail below.

[0039] Please see Figures 2-4 In one embodiment, the connector 100 includes a female connector 10 and a male connector 20. The female connector 10 includes a female terminal block 11 and a socket 12 disposed on the female terminal block 11; the male connector 20 includes a male terminal block 21 and a plug 22 disposed on the male terminal block 21, the plug 22 being able to be inserted into the socket 12 for electrical connection with the socket 12. For the plug 22, the outer peripheral wall of the plug 22 is provided with a plurality of pins 2201 for electrical connection with the socket 12. The pins 2201 are strip-shaped and extend along the length direction of the plug 22, and the plurality of pins 2201 are arranged at intervals around the circumference of the plug 22 (e.g., ...). Figure 5 and Figure 6 As shown in the figure, multiple pins 2201 are arranged at intervals along the perimeter of the plug 22.

[0040] Specifically, for the female connector 10, the female terminal block 11 of the female connector 10 is connected to the female end cable 13, and the female terminal block 11 is provided with a mounting groove; the socket 12 of the female connector 10 is installed in the mounting groove of the female terminal block 11, and extends from the opening of the mounting groove in a direction away from the female end cable 13, so as to allow the plug 22 of the male connector 20 to be inserted. For the male connector 20, the male terminal block 21 of the male connector 20 is connected to the male end cable 23, and the male terminal block 21 is also provided with a fixing groove; the plug 22 of the male connector 20 is installed in the fixing groove of the male terminal block 21, and the opening of the fixing groove extends in a direction away from the male end cable 23, so as to be inserted into the socket 12 of the female connector 10.

[0041] When using connector 100 to connect the blood pump and controller, the male connector 20 is connected to one of the blood pump or controller via male cable 23, and the female connector 10 is connected to the other of the blood pump or controller via female cable 13. Then, the male connector 20 is plugged into the socket 12 of the female connector 10 via plug 22, allowing for a pluggable connection between the two. At this time, pins 2201 on the plug 22 of the male connector 20 are electrically connected to the socket 12 of the female connector 10, enabling the transmission of electrical signals. Thus, the controller can control the blood pump through connector 100. Correspondingly, disconnecting the male connector 20 and the female connector 100 releases the controller's control over the blood pump.

[0042] For the pins 2201 on the plug 22 of the male connector 20, since multiple pins 2201 are arranged at intervals along the circumference of the plug 22, the length of the pins 2201 can be designed to be shorter, thereby reducing the space occupied by the pins 2201 in the length direction of the plug 22, thus shortening the length of the plug 22, and consequently shortening the overall length of the connector 100, achieving overall miniaturization of the connector 100. Furthermore, the multiple pins 2201 of the plug 22 have the same length, and the two ends of each pin 2201 are aligned with the two ends of any other pin 2201 along the circumference of the plug 22. This arrangement allows multiple pins 2201 to be arranged within the same circumferential area of ​​the plug 22, which is beneficial for reducing the length of the plug 22. Of course, in other embodiments, some of the multiple pins 2201 may not be aligned with the two ends of another portion of the pins 2201 along the circumference of the plug 22.

[0043] Theoretically, the shorter the length of pin 2201, the shorter the length of plug 22 can be, and thus the smaller the size of connector 100 can be. Therefore, without affecting the normal use of connector 100, the length of pin 2201 can be minimized, which in turn can shorten the length of plug 22 as much as possible, thereby making connector 100 smaller in size.

[0044] Regarding the spacing of the pins 2201 on the plug 22, the multiple pins 2201 can be arranged at equal intervals along the circumference of the plug 22; alternatively, the multiple pins 2201 can be arranged at non-equal intervals along the circumference of the plug 22. Specifically, the multiple pins 2201 are arranged at equal intervals along the circumference of the plug 22 to make the arrangement of the multiple pins 2201 more uniform, thereby arranging more pins 2201 on the outer peripheral wall of the plug 22. The shape and size of the multiple pins 2201 can be completely identical or not completely identical. For example, there are two pins 2201, and the two pins 2201 have the same length but different widths.

[0045] It is understood that the socket 12 of the female connector 10 may be provided with multiple mating pins (not shown), which can contact the multiple pins 2201 of the plug 22 to achieve electrical connection between the plug 22 and the socket 12. Of course, in other embodiments, the socket 12 may also be provided with other electrical connection structures for the multiple pins 2201 to be electrically connected, which will not be listed here.

[0046] The technical solution of the present invention sets multiple pins 2201 on the plug 22 of the male connector 20 into a strip shape, and makes the multiple pins 2201 extend along the length direction of the plug 22, and the multiple pins 2201 are arranged at intervals along the circumferential direction of the plug 22. That is, the space in the circumferential direction of the plug 22 is used to arrange multiple pins 2201. In this way, the space occupied by multiple pins 2201 in the length direction of the plug 22 can be reduced, and the length of the plug 22 can be shortened accordingly. This effectively reduces the size of the connector 100, which can not only greatly reduce the difficulty of implanting the connector 100 into the patient's body, but also reduce the health risks that the connector 100 may bring to the patient.

[0047] Please see Figures 3-6 In one embodiment, for the plug 22 of the male connector 20, the plug 22 includes a central post 221, a contact 222 connected to the end of the central post 221, and a mounting portion 223 surrounding the outer periphery of the central post 221; a plurality of pins 2201 are mounted on the outer peripheral wall of the mounting portion 223.

[0048] Specifically, contact 222 is configured to be electrically connected to socket 12 to enhance the electrical connection between socket 12 and plug 22 after they are connected. Since plug 22 surrounds the outer periphery of central post 221, the circumference of mounting portion 223 is greater than the circumference of central post 221, thus facilitating the arrangement of more pins 2201. There are various design options for fixing the pins 2201; for example, pins 2201 can be embedded in the outer peripheral wall of mounting portion 223; or, for another example, pins 2201 can be adhered to the surface of the outer peripheral wall of mounting portion 223.

[0049] Please see Figure 3 , Figure 5 and Figure 6 When the plug 22 is inserted into the socket 12, the pins 2201 on the plug 22 may not make good contact with the socket 12. To reduce this, optionally, the plurality of pins 2201 includes at least one protruding pin that protrudes from the outer wall surface of the plug 22; the socket 12 is provided with a insertion hole 121 for inserting the plug 22, and the inner wall surface of the insertion hole 121 is recessed with at least one pin groove 122 extending along the depth direction of the insertion hole 121 (e.g., Figure 8 and Figure 9(As shown), for the insertion and mating of the convex pin.

[0050] Specifically, multiple pins 2201 are disposed on the mounting portion 223 of the plug 22, with the protruding pins among the multiple pins 2201 protruding from the outer surface of the mounting portion 223. A pin groove 122 extends along the depth direction of the insertion hole 121 and penetrates the opening of the insertion hole 121 to allow the protruding pins to be inserted accordingly. When the plug 22 is inserted into the insertion hole 121 of the socket 12, the protruding pins on the plug 22 are also inserted into the pin groove 122 of the insertion hole 121, thereby limiting the insertion position of the multiple pins of the plug 22. This ensures that after the plug 22 is inserted into the insertion hole 121 of the socket 12, the connection between the plug 22 and the socket 12 is secure, and the pins 2201 on the plug 22 make good contact with the socket 12, ensuring circuit continuity.

[0051] It is understood that all of the multiple pins 2201 of the plug 22 can be configured as the protruding pins. Of course, in other embodiments, only a portion of the multiple pins 2201 of the plug 22 can be configured as the protruding pins, while the other portion of the pins 2201 may not protrude from the outer wall surface of the plug 22 (for example, the other portion of the pins 2201 may be flush with the outer wall surface of the plug 22, or embedded in the outer wall surface of the plug 22), as long as it is ensured that the multiple pins 2201 of the plug 22 can make good contact with the socket 12.

[0052] Please see Figure 5 and Figure 6 Furthermore, the plurality of pins 2201 includes at least two raised pins, at least one of which has a different width than the other. This allows at least two raised pins to have different shapes, ensuring that each of the two raised pins can only be inserted into its corresponding pin slot. This configuration serves to prevent incorrect insertion when the plug 22 is aligned with the socket 121 of the socket 12, ensuring that each pin of the plug 22 can be accurately inserted into the target position within the socket 121 of the socket 12, preventing incorrect insertion, and thus avoiding the problem of the controller 300 failing to accurately control the blood pump 200 due to mismatch between the plug 22 and the socket 12.

[0053] The width of at least one of the aforementioned protruding pins differs from the width of another protruding pin, and there are several possible scenarios. One scenario is that the width of one of the protruding pins is different from the widths of the remaining protruding pins; for example, the width of one of the protruding pins is A, and the width of the remaining protruding pins is B (B≠A). Another scenario is that two or more protruding pins have the same width, but their widths differ from the widths of the remaining protruding pins; for example, the width of two protruding pins is A, and the width of the remaining two or more protruding pins is B. Yet another scenario is that the widths of any two protruding pins are different; for example, there are eight protruding pins, and the widths of all eight protruding pins are different.

[0054] Please see Figure 5 and Figure 7 In one embodiment, the outer peripheral wall of the plug 22 is further provided with a guide protrusion 2231 extending along the length direction of the plug 22; the socket 12 is provided with a plug hole 121 for inserting the plug 22, and the inner wall surface of the plug hole 121 is further provided with a guide groove 123 extending along the depth direction of the plug hole 121 (e.g., Figure 8 and Figure 9 As shown), the guide protrusion 2231 is inserted to engage with the guide groove 123. With this configuration, the guide protrusion 2231 and the guide groove 123 work together to smoothly guide the plug 22 into the target position of the socket 121, providing a good guiding effect, and also to make the connection between the plug 22 and the socket 12 more secure.

[0055] Please see Figure 7 Considering that multiple pins 2201 are arranged at intervals around the circumference of the plug 22, and that there is space between adjacent pins 2201 on the outer peripheral wall of the plug 22, it is possible to optionally provide a guide protrusion 2231 on the outer wall surface of the plug 22 located between adjacent pins. This allows for the efficient use of the space between adjacent pins 2201 on the outer peripheral wall of the plug 22 to accommodate the guide protrusion 2231, reducing the space occupied by the guide protrusion 2231 in the length direction of the plug 22. This allows the plug 22 to be designed to be shorter, which is beneficial for miniaturization of the connector 100.

[0056] Furthermore, one end of the guide protrusion 2231 facing the contact 222 of the plug 22 protrudes beyond the other end of the pin 2201 facing the contact 222 of the plug 22. This enhances the guiding effect of the guide protrusion 2231 and provides a better foolproof effect. Of course, in other embodiments, the end of the guide protrusion 2231 facing the contact 222 of the plug 22 can be flush with the other end of the pin 2201 facing the contact 222 of the plug 22.

[0057] Please see Figure 3 , Figure 8 andFigure 10 In one embodiment, the connector 100 further includes a fixing sleeve 30 having a first fitting portion 31 and a second fitting portion 32 connected along its axial direction; the first fitting portion 31 can be ring-connected to the male terminal block 21, and the second fitting portion 32 can be ring-connected to the socket 12, so as to connect and fix the male terminal block 21 and the socket 12. When the blood pump is connected to the controller using connector 100, after the male connector 20 is inserted into the socket 12 of the female connector 10 via plug 22, the first sleeve portion 31 of the fixing sleeve 30 is looped around the male terminal block 21 of the male connector 20 to connect and fix it to the male terminal block 21, and the second sleeve portion 32 of the fixing sleeve 30 is looped around the socket 12 of the female connector 10 to connect and fix it to the socket 12. Thus, the fixing sleeve 30 locks and fixes the male connector 20 and the female connector 10, so that the plug 22 of the male connector 20 is tightly inserted into the socket 12 of the female connector 10, ensuring good contact between the plug 22 and the socket 12 and reducing the occurrence of the plug 22 coming loose.

[0058] Regarding the method of fixing the first sleeve portion 31 of the fixing sleeve 30 to the male terminal block 21 of the male connector 20, mating threads can be provided on the first sleeve portion 31 and the male terminal block 21, so that the two are fixed by threaded connection; or, the first sleeve portion 31 and the male terminal block 21 can be fixed by interference fit. Similarly, the method of fixing the second sleeve portion 32 of the fixing sleeve 30 to the socket 12 of the female connector 10 can also be achieved by providing mating threads on the second sleeve portion 32 and the socket 12, so that the two are fixed by threaded connection; or, the second sleeve portion 32 and the socket 12 can be fixed by interference fit. In this embodiment, the second sleeve portion 32 and the socket 12 are fixed by threaded connection. During assembly, the first sleeve portion 31 of the fixing sleeve 30 can be first looped and fixed onto the male terminal block 21 of the male connector 20, and then the fixing sleeve 30 can be rotated so that the second sleeve portion 32 of the fixing sleeve 30 is spirally fitted onto the socket 12 of the female connector 10.

[0059] Please see Figure 3 , Figure 8 and Figure 10 In one embodiment, the male connector 20 further includes a male cable 23 connected to the male terminal block 21; the fixing sleeve 30 further includes a third sleeve portion 33, which is connected to the end of the first sleeve portion 31 away from the second sleeve portion 32, and the third sleeve portion 33 can be looped around and connected to the end of the male cable 23 near the male terminal block 21. With this configuration, the connection strength between the plug 22 and the socket 12 can be further enhanced by the sleeve engagement of the third sleeve portion 33 and the male cable 23, that is, the connection strength between the male connector 20 and the female connector 10 can be enhanced.

[0060] Please continue reading. Figure 8 andFigure 10 Considering that during the assembly of the fixing sleeve 30, when the second fitting part 32 of the fixing sleeve 30 is screwed onto the socket 12 of the female connector 10, the operator may screw the fixing sleeve 30 towards the socket 12, causing the first fitting part 31 of the fixing sleeve 30 to move from the male terminal block 21 of the male connector 20 to the socket 12 of the female connector 10, making the connection between the fixing sleeve 30 and the male connector 20 unstable.

[0061] To reduce the occurrence of this situation, in one embodiment, a stop step 211 is formed at the connection between the male terminal 21 and the male end cable 23, which protrudes radially along the male end cable 23; the inner wall surface of the connection between the third sleeve portion and the first sleeve portion is provided with a stop mating portion 331 for the stop step 211 to fit and brake. When assembling the fixing sleeve 30, the fixing sleeve 30 is passed through the male end cable 23 of the male connector 20 and fitted onto the male terminal block 21. Then, the fixing sleeve 30 is screwed on so that the second fitting part 32 of the fixing sleeve 30 is screwed onto the socket 12 of the female connector 10. Until the stop mating part 331 between the third fitting part 33 and the first fitting part 31 abuts against the stop step 211, the stop step 211 restricts the fixing sleeve 30 from moving further toward the socket 12, so that the first fitting part 31 is wrapped around the male terminal block 21 of the male connector 20. At this time, it can be determined that the first fitting part 31, the second fitting part 32 and the third fitting part 33 of the fixing sleeve 30 are all wrapped around the corresponding parts, reducing the occurrence of misalignment of the various parts of the fixing sleeve 30 wrapped around other parts.

[0062] Furthermore, the inner diameter of the third sleeve portion 33 is smaller than the inner diameter of the first sleeve portion 31, so that the transition step formed between the third sleeve portion and the first sleeve portion constitutes the stop fitting portion 331. This arrangement facilitates the formation of the stop fitting portion 331. Of course, in other embodiments, a stop fitting portion 331 may be directly protruded from the inner wall surface between the third sleeve portion and the first sleeve portion.

[0063] Please see Figure 3 , Figure 4 and Figure 10 In one embodiment, the inner diameter of the third sleeve portion 33 gradually decreases from the first sleeve portion 31 toward the direction away from the second sleeve portion 32, so that the inner wall surface of the third sleeve portion 33 is in an interference fit with the outer peripheral surface of the male end cable 23. This configuration forms a slope on the inner peripheral wall of the third sleeve portion, which can inwardly compress the outer peripheral surface of the male end cable 23, resulting in an interference fit between the inner wall surface of the third sleeve portion 33 and the outer peripheral surface of the male end cable 23, thereby enhancing the connection strength between the third sleeve portion 33 and the male end cable 23.

[0064] Please see Figure 10In one embodiment, the inner wall surface of the third sleeve 33 forms an angle θ with the axial direction of the fixed sleeve 30. The angle θ ranges from 1° to 10°, meaning it can be any angle value between 1° and 10°, such as, but not limited to, 2°, 5°, 7°, 9°, etc. This configuration controls the inclination angle of the inner peripheral wall of the third sleeve 33 within a reasonable range, reducing damage to the male cable 23 when the inner wall surface of the third sleeve 33 is in an interference fit with the outer peripheral surface of the male cable 23.

[0065] Please see Figure 3 In one embodiment, the outer peripheral surface of the male cable 23 is further provided with a limiting protrusion 231 protruding radially therefrom. The limiting protrusion 231 and the stop step 211 are arranged at intervals along the length direction of the male cable 23 so that the end face of the fixing sleeve 30 abuts against it to restrict its movement away from the plug 22. With this configuration, when the connector 100 needs to be disassembled, after the fixing sleeve 30 is separated from the socket 12 of the female connector 10, if the fixing sleeve 30 moves away from the male terminal block 21 of the male connector 20 away from the plug 22 (i.e., moves towards the male cable 23), the end face of the fixing sleeve 30 located at one end of the third sleeve portion 33 will abut against the limiting protrusion 231 on the male cable 23, thereby limiting the further disengagement of the fixing sleeve 30, thus confining the fixing sleeve 30 between the stop step 211 and the limiting protrusion 231. In this way, the retaining sleeve 30 will not fall off the male connector 20, thus preventing the retaining sleeve 30 from shifting or being lost when idle.

[0066] It is worth mentioning that when the fixed sleeve 30 is locked, the distance between the limiting protrusion 231 and the third sleeve 33 should be greater than or equal to the length of the threaded connection between the second sleeve 32 and the socket 12, so as to ensure that the limiting protrusion 231 will not affect the unscrewing of the second sleeve 32 from the socket 12.

[0067] When the retaining sleeve 30 is first fitted onto the male connector 20, the retaining sleeve 30 must pass through the male cable 23 of the male connector 20 and overcome the resistance of the limiting protrusion 231 to reach the position between the stop step 211 and the limiting protrusion 231 of the retaining sleeve 30, in preparation for subsequent connection with the male terminal block 21 of the male connector 20 and the socket 12 of the female connector 10. To reduce the positional resistance of the limiting protrusion 231 on the retaining sleeve 30 as it passes through the stop step 211 and the limiting protrusion 231, the limiting protrusion 231 can be optionally configured as an elastic protrusion.

[0068] There are many ways to connect the limiting protrusion 231 to the male cable 23. It can be a fixed connection, which can be, but is not limited to, bonding, ultrasonic welding, etc. Of course, in other embodiments, the limiting protrusion 231 and the male cable 23 can also be integrally formed. Here, we do not limit the connection method between the limiting protrusion 231 and the male cable 23.

[0069] Please see Figure 3 , Figure 8 and Figure 10 In one embodiment, the female connector 10 has a female terminal block 11 for mounting the socket 12, and an end face 111 surrounding the opening of the mounting groove. After the second sleeve portion 32 of the fixing sleeve 30 is connected to the socket 12, the end face 321 of the second sleeve portion 32 and the end face 111 of the female terminal block 11 are spaced apart, forming a gap 50. By setting this gap 50, the tightness of the fit between the stop fitting portion 331 of the fixing sleeve 30 and the stop step 211 of the male connector 20 can be adjusted. For example, if there is a gap between the stop fitting part 331 of the fixed sleeve 30 and the stop step 211 of the male connector 20, preventing them from abutting, the fixed sleeve 30 can be screwed toward the socket 12, so that the stop fitting part 331 of the fixed sleeve 30 moves closer to the stop step 211 of the male connector 20 until the stop fitting part 331 and the stop step 211 abut tightly, that is, the fixed sleeve 30 and the female connector 10 are connected and locked, further preventing the fixed sleeve 30 from loosening.

[0070] Please see Figure 8 and Figure 9 In one embodiment, the connector 100 further includes a sealing ring 10; the socket 12 has a mating hole 121 for inserting a plug 22, and a mating end face surrounding the opening of the mating hole 121 and opposite to the end face of the male connector 21; at least one of the mating end face and the end face of the male connector 21 is provided with a sealing groove 124 for mounting the sealing ring 40.

[0071] Specifically, a sealing groove 124 is provided on the plug end face of the socket 12; a sealing ring 40 is embedded in the sealing groove 124. When the plug 22 of the male connector 20 is inserted into the plug hole 121 of the socket 12, the end face of the male connector 21 elastically abuts against the sealing ring 40, thereby pressing the sealing ring 40 tightly in the sealing groove 124, which can effectively seal the joint between the socket 12 and the male connector 21, thereby preventing external liquid from entering the plug 22 and the socket 12 plug-in mating position.

[0072] In other embodiments, a sealing groove 124 may be provided on the end face of the male connector 21, and the sealing ring 40 may be embedded in the sealing groove 124 on the male connector 21. Alternatively, both the plug end face and the end face of the male connector 21 may be provided with sealing grooves 124; during assembly, a portion of the sealing ring 40 may be embedded in the sealing groove 124 of the male connector 21, while the other portion of the sealing ring 40 may be embedded in the sealing groove 124 of the socket 12.

[0073] Please see Figure 5 In one embodiment of the present invention, the outer wall surface of the fixing sleeve 30 is provided with an anti-slip structure 301. This configuration increases the coefficient of friction of the outer peripheral wall of the fixing sleeve 30, thereby increasing the friction force when the operator holds the fixing sleeve 30, reducing the likelihood of the operator's hand slipping on the fixing sleeve 30, and thus facilitating the operator's assembly and disassembly of the fixing sleeve 30. The anti-slip structure 301 can be of many types. For example, the anti-slip structure 301 can be a rough surface on the outer wall surface of the fixing sleeve 30; or, the anti-slip structure 301 can be a pattern on the outer wall surface of the fixing sleeve 30; or, the anti-slip structure 301 can be a groove or rib on the outer wall surface of the fixing sleeve 30.

[0074] Please see Figure 1 and Figure 2 The present invention also provides a blood pump system 1000, which includes a blood pump 200, a controller 300, and a connector 100. The female connector 10 of the connector 100 is connected to one of the blood pump 200 and the controller 300 via a female cable 13, and the male connector 20 of the connector 100 is connected to the other of the blood pump 200 and the controller 300 via a male cable 23. The specific structure of the connector 100 is as described in the above embodiments. Since the blood pump system 1000 adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0075] Specifically, the male connector 20 has a male terminal block 21 connected to a male cable 23; the female connector 10 has a female terminal block 11 connected to a female cable 13. When connector 100 connects the blood pump 200 to the controller 300, the female connector 10 connects to one of the blood pump 200 and the controller 300 via the female cable 13, and the male connector 20 connects to the other of the blood pump 200 and the controller 300 via the male cable 23. Finally, the plug 22 of the male connector 20 and the socket 12 of the female connector 10 are inserted and connected. There can be multiple blood pumps 200, and correspondingly, there can be multiple connectors 100, with each blood pump 200 connected to the controller 300 via one connector 100. This configuration allows the controller 300 to selectively control one or two blood pumps 200 to operate according to the severity of the patient's condition, greatly improving the flexibility of treatment.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0077] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A connector, characterized in that, For implantation in a patient, the connector includes: The female connector includes a female terminal block and a socket disposed on the female terminal block; and A male connector, the male connector including a male terminal block and a plug disposed on the male terminal block, the plug being able to be inserted into the socket for electrical connection with the socket; The male connector has a plurality of pins on its outer peripheral wall for electrical connection to the socket. The pins are strip-shaped and extend along the length of the connector. The plurality of pins are spaced apart along the circumferential direction of the connector. The plurality of pins are of the same length, and the two ends of each pin are aligned with the two ends of any other pin along the circumferential direction of the connector. The connector includes a central post, a contact connected to the end of the central post, and a mounting portion surrounding the outer periphery of the central post. The plurality of pins are disposed on the outer peripheral wall of the mounting portion, and the contact is configured to be electrically connected to the socket. The connector further includes a retaining sleeve having a first fitting portion and a second fitting portion connected axially thereto; the first fitting portion can be looped around the male terminal block, and the second fitting portion can be looped around the socket to connect and fix the male terminal block and the socket. The female connector has a mounting groove for mounting the socket and an end face surrounding the groove opening; after the second sleeve is connected to the socket, the end face of the second sleeve is spaced apart from the end face of the female connector, thus forming a gap.

2. The connector according to claim 1, characterized in that, The plurality of pins includes at least one protruding pin that protrudes from the outer wall of the plug; the socket is provided with a plug hole for inserting the plug, and the inner wall of the plug hole is provided with a pin groove extending along the depth direction of the plug hole for inserting and engaging the protruding pin.

3. The connector according to claim 2, characterized in that, The number of the protruding pins is at least two, and the width of at least one of the protruding pins is different from the width of the other protruding pin.

4. The connector according to claim 1, characterized in that, The outer peripheral wall of the plug is also provided with a guide protrusion extending along the length direction of the plug; the socket is provided with a plug hole for inserting the plug, and the inner wall surface of the plug hole is also provided with a guide groove extending along the depth direction of the plug hole, so as to allow the guide protrusion to be inserted and engaged.

5. The connector according to claim 4, characterized in that, The guide protrusion is disposed on the outer wall surface of the plug located between two adjacent pins.

6. The connector according to claim 1, characterized in that, The male connector also includes a male cable connected to the male terminal block; the fixing sleeve also includes a third sleeve connected to the end of the first sleeve that is away from the second sleeve, the third sleeve being able to loop around and connect the end of the male cable that is close to the male terminal block.

7. The connector according to claim 6, characterized in that, The connection between the male connector and the male cable is provided with a stop step that protrudes radially along the male cable; the inner wall of the connection between the third sleeve and the first sleeve is provided with a stop fitting part for the stop step to abut.

8. The connector according to claim 6, characterized in that, The inner diameter of the third sleeve is smaller than the inner diameter of the first sleeve.

9. The connector according to claim 8, characterized in that, The inner diameter of the third sleeve portion gradually decreases from the first sleeve portion toward the direction away from the second sleeve portion, so that the third sleeve portion is interference-fitted with the male end cable.

10. The connector according to claim 9, characterized in that, The inner wall surface of the third sleeve portion forms an angle with the axial direction of the fixed sleeve, and the angle ranges from 1° to 10°.

11. The connector according to claim 7, characterized in that, The outer circumferential surface of the male end cable is provided with a limiting protrusion. The limiting protrusion and the stop step are arranged at intervals along the length direction of the male end cable so that the end face of the fixing sleeve can abut against it.

12. The connector according to claim 1, characterized in that, The outer peripheral wall of the fixed sleeve is provided with an anti-slip structure.

13. The connector according to any one of claims 1 to 5, characterized in that, The connector further includes a sealing ring; the socket has a mating hole for inserting the plug, and a mating end face surrounding the opening of the mating hole and opposite to the end face of the male connector; at least one of the mating end face and the end face of the male connector is provided with a sealing groove for mounting the sealing ring.

14. A blood pump system, characterized in that, The blood pump system includes: Blood pump; Controller; and The connector as described in any one of claims 1 to 13; The female connector of the connector is connected to one of the blood pump and the controller via a female cable, and the male connector of the connector is connected to the other of the blood pump and the controller via a male cable.

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