Controller, controller assembly, and ventricular assist system

Abstract

The application relates to a controller, a controller assembly and a ventricular assist system. The controller is electrically connectable with a connector having a connecting piece for detachable connection with the controller. The controller comprises a controller body, a shielding piece and a locking piece. The controller body is detachably connectable with the connecting piece, and is provided with an engaging piece. The shielding piece is rotatably arranged on the controller body. The locking piece is slidably arranged on the shielding piece. The locking piece is engaged with or separated from the engaging piece by sliding the locking piece. When the locking piece is engaged with the engaging piece, the shielding piece covers the controller body and can jointly shield the connecting piece with the controller body. The engagement of the locking piece with the engaging piece can prevent the shielding piece from rotating relative to the controller body. The controller can reduce the risk of disconnection of the controller from the blood pump due to misoperation of the connecting piece.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to controllers, controller assemblies, and ventricular assist systems. Background Technology

[0002] The controller is an important component used to control the operation of the blood pump in the body. The controller is usually electrically connected to the blood pump through a connector.

[0003] The controller of the relevant technology is prone to malfunction, which may cause the controller to disconnect from the connector, resulting in a high risk of the controller disconnecting from the blood pump, which seriously threatens the patient's life. Summary of the Invention

[0004] Therefore, it is necessary to provide a safer controller, controller components, and ventricular assist system.

[0005] In a first aspect, this application provides a controller capable of electrical connection to a connector, the connector having a connecting element for detachable connection to the controller, the controller comprising:

[0006] The controller body is detachably connected to the connector, and the controller body is provided with a locking component;

[0007] A blocking member, the blocking member being rotatably disposed on the controller body; and

[0008] A locking member is slidably disposed on the blocking member. By sliding the locking member, the locking member can be engaged or disengaged from the engaging member. When the locking member is engaged with the engaging member, the blocking member covers the controller body and can jointly block the connecting member with the controller body. The engagement of the locking member with the engaging member can prevent the blocking member from rotating relative to the controller body.

[0009] In one embodiment, the controller further includes an elastic element, one end of which is connected to the blocking element and the other end of which is connected to the locking element. The elastic element can provide an elastic force to the locking element to maintain the locking element and the engaging element in an engaged state.

[0010] In one embodiment, the engaging member has a latching groove and a guide surface. The latching groove has an opening, and the guide surface extends from the outside of the latching groove to the opening of the latching groove. The locking member includes a main body and a fastening part connected to the main body. The main body is slidably disposed on the blocking member. The fastening part can slide along the guide surface to the opening of the latching groove and enter the latching groove from the opening of the latching groove under the action of the elastic force to engage with the latching groove.

[0011] In one embodiment, the controller further includes at least one of the following features:

[0012] The guiding surface is an arc surface or a slope surface;

[0013] The elastic element is a spring;

[0014] When the shielding member is not covering the controller body, the position of the fastening part corresponds to the position of the guide surface, so that during the process of the shielding member rotating to cover the controller body, the fastening part can abut against the guide surface and slide along the guide surface.

[0015] In one embodiment, the controller body is further provided with a limiting post. The limiting post and the engaging member are spaced apart along the sliding path of the locking member. The limiting post has a first side and a second side opposite to each other. The first side and the second side are arranged along the sliding path of the locking member. The first side is closer to the engaging member than the second side. When the locking member engages with the engaging member, the locking member is positioned close to the first side of the limiting post. The locking member can pass over the limiting post and abut against the second side of the limiting post under the action of the elastic member. When the locking member abuts against the second side of the limiting post, the locking member separates from the engaging member.

[0016] In one embodiment, the locking member includes a main body, a fastening part connected to the main body, and an extension part connected to the fastening part. The main body is slidably disposed on the blocking member. The fastening part can engage with the locking member. When the fastening part engages with the locking member, the extension part is located between the first side of the limiting post and the locking member. The extension part can pass over the limiting post and abut against the second side of the limiting post under the action of the elastic member. Along the sliding path of the locking member, there is a gap between the limiting post and the locking member. When the blocking member does not cover the controller body, the position of the extension part corresponds to the position of the gap.

[0017] In one embodiment, the first side of the limiting post is provided with a first inclined surface, and the locking member can slide along the first inclined surface and pass over the limiting post; and / or, the side of the locking member opposite to the engaging member is provided with a second inclined surface, and the second inclined surface can abut against the limiting post.

[0018] In one embodiment, the controller further includes at least one of the following features:

[0019] The controller body has a mounting slot that can accommodate the connector, the engaging member is disposed in the mounting slot, and the blocking member can block the mounting slot.

[0020] The controller further includes a paddle, which is slidably disposed on the outside of the shield, and the latch is disposed on the inside of the shield. The paddle is connected to the latch and can drive the latch to slide on the shield.

[0021] The sliding direction of the locking element is parallel to the rotation axis of the blocking element.

[0022] Secondly, this application also provides a controller component, including:

[0023] Controller, wherein the controller is the controller of any of the above embodiments; and

[0024] The connector includes a connector and a connector. The connector is electrically connected to the controller body. The connector is rotatably disposed on the connector and can engage with the controller body. By rotating the connector, the connector can be engaged or disengaged from the controller body. The connector engages with the controller body to prevent the connector from detaching from the controller body.

[0025] In one embodiment, the controller assembly further includes an anti-rotation member connected to the connector. The anti-rotation member has a limiting protrusion that can rotate synchronously with the connector. A locking member is disposed on the rotation path of the limiting protrusion so that when the connector rotates relative to the joint in a direction separate from the controller body, the limiting protrusion can abut against the locking member.

[0026] In one embodiment, the controller body includes a mounting surface and a mating portion disposed on the mounting surface. The connector can engage with the mating portion, and the connector has a mating end face. The anti-rotation member further includes an annular body, a limiting protrusion disposed on the outer periphery of the annular body, one end of the annular body being detachably fitted onto the connector, the annular body being able to rotate synchronously with the connector, and the annular body having a buckle. The connector can be inserted into the mating portion. When the connector is inserted into the mating portion, the mating end face is spaced apart from and opposite to the mounting surface to form a limiting groove. The end of the annular body away from the connector abuts against the mounting surface. The buckle portion is received in the limiting groove and abuts against the mating end face to prevent the annular body from sliding axially on the connector.

[0027] Thirdly, this application also provides a ventricular assist system, including a blood pump and any of the above-mentioned controller components, wherein the connector electrically connects the blood pump and the controller body.

[0028] The controller of this application includes a controller body, a shield, and a locking component. By sliding the locking component, it can engage or disengage with a locking mechanism on the controller body. When the locking component is engaged with the locking mechanism, the shield covers the controller body and, together with the controller body, shields the connector, preventing the connector from being operated and thus preventing it from disengaging from the controller body. This makes it difficult for the user to operate the connector to separate the controller from the connector. The engagement of the locking component with the locking mechanism prevents the shield from rotating relative to the controller body, keeping it in place. The user needs to slide the locking component to disengage it from the locking mechanism to open the shield. This minimizes the risk of accidental disconnection of the controller from the blood pump due to user error, reducing the risk of disconnection and improving safety. Attached Figure Description

[0029] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:

[0032] Figure 1 A schematic diagram of the controller provided in this application.

[0033] Figure 2 A schematic diagram of the controller component provided in this application.

[0034] Figure 3 for Figure 2 The diagram shows the structure of the controller component after the obstruction is hidden.

[0035] Figure 4 for Figure 1 The diagram shows the structure of the shielding and locking components of the controller.

[0036] Figure 5 for Figure 2 The exploded view of the controller component shown is partially hidden behind the obscuring elements.

[0037] Figure 6 for Figure 5 A magnified view of a portion of P1.

[0038] Figure 7 for Figure 1 The diagram shows the controller in the locked position.

[0039] Figure 8 for Figure 7 A magnified view of a portion of P2.

[0040] Figure 9 for Figure 1 The diagram shows the controller in the unlocked position.

[0041] Figure 10 for Figure 9 A magnified view of a portion of P3.

[0042] Figure 11 for Figure 1 The diagram shows the structure of the locking mechanism of the controller.

[0043] Figure 12 for Figure 1 The exploded view shows a portion of the shielding and locking components of the controller.

[0044] Figure 13 for Figure 1 The diagram shows the structure of the locking mechanism and the lever of the controller.

[0045] Figure 14 for Figure 4 Another structural schematic diagram of the shielding and locking components shown.

[0046] Figure 15 for Figure 2 The diagram shows the structure of the connector for the controller component.

[0047] Figure 16 for Figure 15 The front view of the connector shown.

[0048] Figure 17 for Figure 16 A cross-sectional view along the AA direction.

[0049] Figure 18 for Figure 2 The diagram shows the structure of the anti-rotation component of the controller assembly.

[0050] Figure 19 for Figure 18 Another structural schematic diagram of the anti-rotation component is shown.

[0051] Figure 20 for Figure 2The diagram shows another structural schematic of the controller component after the obscuring element has been hidden.

[0052] Figure 21 for Figure 20 A magnified view at point P4.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. Controller assembly; 10. Controller; 11. Controller body; 111. Mounting slot; 1111. Mounting surface; 1112. Slot bottom; 112. Engaging part; 1120. Snap-on slot; 1121. First baffle; 1122. Second baffle; 1123. Third baffle; 1122a. Guide surface; 1124. Groove; 114. Mating part; 1141. Snap-on position; 115. Limiting groove; 116. Rotating arm; 1161. Guide groove; 117. Pin; 118. Limiting post; 118a. First side; 118b. Second side; 1181. First inclined surface; 119. Gap; 12. Covering part; 12a. First cover plate; 12b. Second cover plate; 13. Locking part; 131. Snap-on part; 131a. First surface; 131b. Second surface; 131 c. Third surface; 1342. Second inclined surface; 133. Main body; 134. Extension; 122. Paddle; 1221. Inner surface; 123. Elastic element; 1231. First connecting post; 1232. Second connecting post; 125. Fastener; 126. Mounting protrusion; 1261. Mounting channel; 1262. Mounting hole; 127. Slide groove; 1271. Slide bottom wall; 128. Through hole; 129. Anti-slip structure; 20. Connector; 21. Joint; 211. First end; 212. Second end; 23. Connector; 231. Hook; 232. Tooth; 233. Engaging end face; 24. Anti-rotation element; 24a. Annular body; 241. Limiting protrusion; 242. Buckle; 243. Elastic arm; 2431. Gap; 244. Notch; 245. Slot. Detailed Implementation

[0055] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0056] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0057] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0059] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0061] Please see Figures 1 to 4 This application provides a controller 10 that can be electrically connected to a connector 20. In one embodiment, the connector 20 can electrically connect the controller 10 and a blood pump to transmit current and control signals to the blood pump, enabling the controller 10 to control the operation of the blood pump. The connector 20 has a connector 23 for detachable connection to the controller 10.

[0062] The controller 10 includes a controller body 11, a blocking member 12, and a locking member 13. The controller body 11 is detachably connected to the connector 23. In the illustrated embodiment, the connector 23 can engage with the controller body 11. Specifically, the connector 23 is rotated relative to the controller body 11 to engage and disengage with the controller body 11. The blocking member 12 is rotatably disposed on the controller body 11, allowing the blocking member 12 to open or close relative to the controller body 11. The locking member 13 is slidably disposed on the blocking member 12, allowing the locking member 13 to engage or disengage with the controller body 11. When the locking member 13 is engaged with the controller body 11, the blocking member 12 remains closed relative to the controller body 11. Only when the locking member 13 is slidably detached from the controller body 11 can the user rotate the blocking member 12 to open it relative to the controller body 11.

[0063] The controller body 11 is provided with a locking member 112. A sliding locking member 13 can engage or disengage with the locking member 112. When the locking member 13 is engaged with the locking member 112, the blocking member 12 covers the controller body 11 and, together with the controller body 11, blocks the connector 23, preventing the connector 23 from being operated and thus preventing it from disengaging from the controller body 11. The blocking member 12 and the controller body 11 can partially or completely block the connector 23, ensuring that when the blocking member 12 covers the controller body 11, the user cannot operate the exposed portion of the connector 23, thus preventing the controller 10 from separating from the connector 20. In the illustrated embodiment, the blocking member 12 and the controller body 11 partially block the connector 23. The engagement of the locking element 13 and the engaging element 112 prevents the shielding element 12 from rotating relative to the controller body 11, allowing the shielding element 12 to remain covering the controller body 11. The user needs to slide the locking element 13 to separate it from the engaging element 112 in order to open the shielding element 12. This minimizes the risk of the controller 10 being disconnected from the blood pump due to accidental operation of the connector 23 during use.

[0064] The shield 12 has a closed state and an open state. When the shield 12 is in the closed state, the shield 12 is closed relative to the controller body 11. When the shield 12 is in the open state, the shield 12 is open relative to the controller body 11, at which time the connection or disconnection of the controller 10 and the connector 20 can be operated.

[0065] The locking member 13 has a locked position and an unlocked position. Specifically, the locking member 13 slides on the blocking member 12 to be in either the locked or unlocked position. When the locking member 13 is in the locked position, it engages with the engaging member 112 to lock the blocking member 12 in a closed state, preventing accidental opening. When the locking member 13 is in the unlocked position, it disengages from the engaging member 112 to release the lock on the blocking member 12, allowing the blocking member 12 to be opened.

[0066] The controller 10 of this application can engage or disengage the locking fastener 13 with the engaging member 112 of the controller body 11 via the sliding locking fastener 13. When the locking fastener 13 is engaged with the engaging member 112, the blocking member 12 covers the controller body 11 and can together with the controller body 11 block the connector 23, so that the connector 23 cannot be operated and cannot be disengaged from the controller body 11, thereby making it difficult for the user to operate the connector 23 to separate the controller 10 from the connector 20. By engaging the locking element 13 with the engaging element 112, the blocking element 12 is prevented from rotating relative to the controller body 11, allowing the blocking element 12 to remain covering the controller body 11. The user needs to slide the locking element 13 to separate it from the engaging element 112 in order to open the blocking element 12. This minimizes the risk of the controller 10 being disconnected from the blood pump due to accidental operation of the connector 23 during use, thus improving the safety of the controller 10.

[0067] Please see Figure 5 and Figure 6 In some embodiments, the controller body 11 has a mounting slot 111. The mounting slot 111 can accommodate the connector 23, and the engaging member 112 is disposed in the mounting slot 111. The blocking member 12 can block the mounting slot 111. Specifically, when the blocking member 12 is in the closed state, the blocking member 12 blocks the mounting slot 111 to block the connector 23, reducing the probability of accidental operation of the connector 23. When the blocking member 12 is in the open state relative to the controller body 11, the mounting slot 111 and the connector 23 are exposed to allow operation of the connector 23. In the illustrated embodiment, the blocking member 12 is disposed near the opening of the mounting slot 111, and the blocking member 12 can block the opening of the mounting slot 111.

[0068] The controller body 11 also includes a mounting surface 1111 and a mating part 114 disposed on the mounting surface 1111, and the connector 23 can engage or disengage with the mating part 114. Specifically, the connector 23 is engaged or disengaged from the controller body 11 by rotating the connector 23 relative to the mating part 114.

[0069] In this embodiment, the mounting surface 1111 is disposed in the mounting groove 111. The mounting surface 1111 is part of the groove wall of the mounting groove 111. The mounting groove 111 also has a groove bottom surface 1112, which is connected to the mounting surface 1111. The engaging member 112 is disposed on the groove bottom surface 1112.

[0070] In other embodiments, the controller body 11 may not have a mounting slot 111, as long as the shielding member 12 can cover the connector 23 when it is closed, thus preventing the user from accidentally operating the connector 23 during the use of the blood pump, which could cause the connector 23 to disengage from the controller 10. When the controller body 11 does not have a mounting slot 111, the mounting surface 1111 can be the outer surface of the controller body 11.

[0071] Please see Figure 4 , Figure 7 and Figure 8 The controller 10 also includes an elastic element 123. One end of the elastic element 123 is connected to the blocking element 12, and the other end is connected to the locking element 13, so that the sliding of the locking element 13 can cause the elastic element 123 to extend or shorten. The elastic element 123 can provide an elastic force to the locking element 13 to maintain the locking element 13 and the engaging element 112 in the engaged state, so as to keep the locking element 13 in the locked position and minimize the possibility of the locking element 13 separating from the controller body 11 due to external factors such as vibration, thereby improving the connection stability between the blocking element 12 and the controller body 11 in the closed state.

[0072] In the illustrated embodiment, when the blocking member 12 is in the closed state, the elastic member 123 is disposed on the side of the locking member 13 near the engaging member 112. At this time, the elastic force provided by the elastic member 123 is a tensile force, which pulls the locking member 13 toward the engaging member 112 to engage the locking member 13 with the engaging member 112. When the locking member 13 moves from the locked position toward the unlocked position, the elastic member 123 is stretched, and the movement of the locking member 13 toward the unlocked position needs to overcome the elastic force of the elastic member 123. That is, the elastic force of the elastic member 123 has a tendency to move the locking member 13 to the locked position in order to maintain the locking member 13 in the locked position. In other embodiments, when the blocking member 12 is in the closed state, the elastic member 123 can also be disposed on the side of the locking member 13 away from the engaging member 112. At this time, the elastic force provided by the elastic member 123 is a thrust to push the locking member 13 toward the engaging member 112 so that the locking member 13 engages with the engaging member 112.

[0073] In the illustrated embodiment, the elastic element 123 is a spring. In other embodiments, the elastic element 123 may also be an elastic sleeve.

[0074] Furthermore, the locking member 13 is provided with a first connecting post 1231, and the inner wall of the blocking member 12 is provided with a second connecting post 1232. One end of the elastic member 123 is fixed to the first connecting post 1231, and the other end of the elastic member 123 is fixed to the second connecting post 1232. The second connecting post 1232 can be fixed to the inner wall of the blocking member 12 by means of a threaded connection; specifically, the second connecting post 1232 can be a screw.

[0075] Please see Figure 6 , Figure 9 and Figure 10 The engaging member 112 has a locking groove 1120 and a guide surface 1122a. The locking groove 1120 has an opening 1124, and the guide surface 1122a extends from the outside of the locking groove 1120 to the opening 1124 of the locking groove 1120. During the process of closing the blocking member 12 relative to the controller body 11, the locking member 13 can slide along the guide surface 1122a to the opening 1124 of the locking groove 1120, and under the action of the elastic force of the elastic member 123, it enters the locking groove 1120 from the opening 1124 of the locking groove 1120 and engages with the locking groove 1120, so that the blocking member 12 maintains the closed state relative to the controller body 11. That is, during the process of the blocking member 12 rotating to the closed state, when the position of the locking member 13 corresponds to the position of the guide surface 1122a, it is not necessary to manually move the locking member 13. Simply press the blocking member 12 to make the locking member 13 engage with the engaging member 112, thereby realizing the automatic locking of the locking member 13 and improving the ease of operation of the controller 10.

[0076] Specifically, when the shielding member 12 is not covering the controller body 11, the position of the locking member 13 corresponds to the position of the guide surface 1122a. This allows the locking member 13 to abut against the guide surface 1122a and slide along it during the process of the shielding member 12 rotating to cover the controller body 11. This allows the locking member 13 to enter the latching groove 1120 from the opening 1124 and engage with the latching groove 1120. The guide surface 1122a is an arc-shaped surface or an inclined surface to guide the locking member 13 to slide on it. The correspondence between the position of the locking member 13 and the position of the guide surface 1122a means that the orthographic projection of the locking member 13 along a direction perpendicular to the bottom surface 1112 of the groove is located on the guide surface 1122a.

[0077] The engaging component 112 includes a first baffle 1121 and a second baffle 1122, which are connected. The first baffle 1121 is connected to the bottom surface 1112 of the groove and faces the mounting surface 1111. The second baffle 1122 faces the bottom surface 1112 of the groove and is spaced apart. The first baffle 1121 and the second baffle 1122 form a slot 1124.

[0078] The engaging component 112 also includes a third baffle 1123. The third baffle 1123 is connected to both the first baffle 1121 and the second baffle 1122, meaning that the first baffle 1121, the second baffle 1122, and the third baffle 1123 are connected in pairs. The first baffle 1121, the second baffle 1122, and the third baffle 1123 together form a locking groove 1120. The third baffle 1123 is connected to the bottom surface 1112 of the groove. The third baffle 1123 can abut against the locking component 13 to limit the engagement depth of the locking component 13 and the locking groove 1120, thereby affecting the connection strength between the locking component 13 and the controller body 11. Specifically, when the blocking member 12 is in the closed state and the third baffle 1123 is further away from the locking member 13, the locking member 13 engages with the locking groove 1120 more deeply, and the connection strength between the locking member 13 and the controller body 11 is also greater. Conversely, the connection strength between the locking member 13 and the controller body 11 is weaker. In the illustrated embodiment, the guide surface 1122a faces away from the bottom surface 1112 of the groove and is located on the side of the second baffle 1122 that faces away from the third baffle 1123.

[0079] Please see Figure 8 , Figure 11 and Figure 12 The shielding member 12 includes a first cover plate 12a and a second cover plate 12b connected at an angle. When the shielding member 12 is in the closed state, the first cover plate 12a faces the mounting surface 1111, and the second cover plate 12b faces the bottom surface 1112 of the groove. A locking member 13 is slidably disposed on the first cover plate 12a. A second connecting post 1232 is disposed on the second cover plate 12b. In this embodiment, the included angle between the first cover plate 12a and the second cover plate 12b is approximately 90°. In other embodiments, the included angle between the first cover plate 12a and the second cover plate 12b can also be 45°, 60°, or other angles.

[0080] The locking element 13 is slidably disposed on the blocking element 12. In this embodiment, the sliding direction of the locking element 13 is parallel to the rotation axis of the blocking element 12, making the locking process of the locking element 13 more convenient. In other embodiments, the sliding direction of the locking element 13 may intersect the rotation axis of the blocking element 12.

[0081] The locking member 13 includes a main body 133 and a fastening part 131 connected to the main body 133. The main body 133 is slidably disposed on the cover member 12. The fastening part 131 can engage with the locking member 112. Specifically, the fastening part 131 bends and extends from the main body 133 in a direction away from the first cover plate 12a, or in other words, when the cover member 12 is in the closed state, the fastening part 131 bends and extends from the main body 133 toward the mounting surface 1111. In the illustrated embodiment, the first connecting post 1231 is disposed on the main body 133.

[0082] The latching part 131 can engage or disengage with the latching groove 1120. When the locking member 13 is in the locked position, the latching part 131 engages with the latching groove 1120, and the locking member 13 engages with the engaging member 112, thereby locking the blocking member 12 in the closed state and preventing the blocking member 12 from being accidentally opened. When the locking member 13 is in the unlocked position, the latching part 131 disengages from the latching groove 1120, thereby releasing the lock on the blocking member 12, and the blocking member 12 can then be opened.

[0083] Please see Figure 6 , Figure 8 and Figure 10 During the closing process of the shielding member 12, the fastening part 131 can slide along the guide surface 1122a to the opening 1124 of the fastening groove 1120, and under the action of the elastic force of the elastic member 123, it enters the fastening groove 1120 from the opening 1124 and engages with the fastening groove 1120. When the shielding member 12 is not covering the controller body 11, the position of the fastening part 131 corresponds to the position of the guide surface 1122a, so that when the shielding member 12 rotates to cover the controller body 11, the fastening part 131 can abut against the guide surface 1122a and slide along the guide surface 1122a.

[0084] Please see Figure 6 , Figure 11 and Figure 12 The fastening part 131 has a first surface 131a, a second surface 131b, and a third surface 131c that are in contact with each other. The first surface 131a is disposed opposite to the first cover plate 12a, and the second surface 131b is disposed opposite to the second cover plate 12b. When the blocking member 12 is in the closed state, the first surface 131a is disposed on the side of the fastening part 131 that is away from the mounting surface 1111; the second surface 131b is disposed on the side of the fastening part 131 that is away from the bottom surface 1112 of the groove; and the third surface 131c is disposed on the side of the fastening part 131 that faces the engaging member 112.

[0085] When the fastening part 131 engages with the fastening groove 1120, the first surface 131a is opposite to the first baffle 1121, the second surface 131b is opposite to the second baffle 1122, and the second surface 131b can abut against the inner surface of the second baffle 1122.

[0086] When the fastening part 131 engages with the fastening groove 1120, the third surface 131c is opposite to the third baffle 1123, and the third surface 131c abuts against the third baffle 1123 under the elastic force of the elastic member 123. The first surface 131a is opposite to the first baffle 1121, so that the first baffle 1121 can stop the fastening part 131 from moving away from the mounting surface 1111; the second surface 131b is opposite to the second baffle 1122, so that the second baffle 1122 can stop the fastening part 131 from moving away from the bottom surface 1112 of the groove, thus preventing the blocking member 12 from rotating relative to the controller body 11; the third surface 131c is opposite to the third baffle 1123, so that the third baffle 1123 can limit the engagement depth of the fastening part 131, thereby confining the fastening part 131 within the fastening groove 1120, realizing the engagement of the locking member 13 and the engaging member 112, thereby locking the blocking member 12 in the closed state and preventing the blocking member 12 from being accidentally opened.

[0087] Please see Figure 6 , Figure 8 and Figure 10 Because the locking element 13 needs to overcome the elastic force of the elastic member 123 when it moves from the locked position to the unlocked position, in order to keep the locking element 13 stably in the unlocked position and prevent it from moving towards the locked position under the elastic force of the elastic member 123, in some embodiments, the controller body 11 is also provided with a limiting post 118. When the locking element 13 is in the unlocked position, the limiting post 118 abuts against the locking element 13 to prevent it from moving to the locked position. The limiting post 118 protrudes from the mounting surface 1111.

[0088] Specifically, the limiting post 118 and the engaging member 112 are spaced apart along the sliding path of the locking member 13. The limiting post 118 has a first side 118a and a second side 118b, which are arranged along the sliding path of the locking member 13, with the first side 118a closer to the engaging member 112 than the second side 118b. That is, the first side 118a and the second side 118b are spaced apart along the sliding path of the locking member 13. When the locking member 13 engages with the engaging member 112, the locking member 13 is positioned closer to the first side 118a of the limiting post 118.

[0089] The locking element 13 can pass over the limiting post 118 and abut against the second side 118b of the limiting post 118 under the action of the elastic element 123. When the locking element 13 abuts against the second side 118b of the limiting post 118, the locking element 13 separates from the engaging element 112. In this way, by using the limiting post 118 to limit the locking element 13, the locking element 13 can be stably maintained in the unlocked position, preventing the locking element 13 from moving to the locked position, so as to facilitate the operator (such as medical personnel) to open the cover 12 when changing the controller 10. Specifically, when the locking element 13 moves from the locked position to the unlocked position, the fastening part 131 separates from the engaging element 112, and at least a part of the locking element 13 is located on the second side 118b of the limiting post 118.

[0090] The locking member 13 also includes an extension 134 connected to the engaging portion 131. Specifically, the extension 134 extends from the engaging portion 131 in a direction away from the main body portion 133 so that the extension 134 can abut against the limiting post 118.

[0091] When the fastening part 131 engages with the engaging member 112, the extension part 134 is located between the first side 118a of the limiting post 118 and the engaging member 112. The extension part 134 can pass over the limiting post 118 and abut against the second side 118b of the limiting post 118 under the action of the elastic member 123. Along the sliding path of the locking member 13, there is a gap 119 between the limiting post 118 and the engaging member 112. When the blocking member 12 is not covering the controller body 11, the position of the extension part 134 corresponds to the position of the gap 119, so that during the process of the blocking member 12 rotating to the closed state, the extension part 134 will not abut against the limiting post 118 or the engaging member 112, and will not be stopped by the limiting post 118 and the engaging member 112, which facilitates the rotation of the blocking member 12 to the closed state. When the blocking member 12 is in the closed state, the extension 134 can be located at the gap 119 between the limiting post 118 and the engaging member 112.

[0092] In the illustrated embodiment, the first side 118a of the limiting post 118 is provided with a first inclined surface 1181, and the locking member 13 can slide along the first inclined surface 1181 and pass over the limiting post 118. The first inclined surface 1181 has a guiding function for the locking member 13, so as to guide the locking member 13 to pass over the limiting post 118, that is, the extension 134 can slide along the first inclined surface 1181 and pass over the limiting post 118, guiding the extension 134 of the locking member 13 to move from the first side 118a to the second side 118b. More specifically, the first inclined surface 1181 is provided on the side of the limiting post 118 facing the engaging member 112, and along the direction from the second side 118b to the first side 118a, the distance from the first inclined surface 1181 to the mounting surface 1111 gradually decreases. The direction of movement of the locking member 13 from the locked position to the unlocked position is the same as the direction of movement of the locking member 13 from the first side 118a to the second side 118b.

[0093] Specifically, during the movement of the locking member 13 from the locked position to the unlocked position, the extension 134 of the locking member 13 abuts against and slides relative to the first inclined surface 1181. Utilizing the guiding effect of the first inclined surface 1181, at least one of the limiting post 118 and the extension 134 undergoes elastic deformation, allowing the locking member 13 to pass over the limiting post 118. When the locking member 13 reaches the second side 118b of the limiting post 118, the elastically deformed structure returns to its original state. At this point, the locking member 13 abuts against the second side 118b under the elastic force of the elastic member 123, thereby restricting the locking member 13 to the unlocked position.

[0094] In the illustrated embodiment, both the limiting post 118 and the extension 134 have a certain degree of elasticity. The limiting post 118 is made of plastic, and the locking element 13 is made of POM (Polyformaldehyde) or nylon. In other embodiments, either the limiting post 118 or the extension 134 may be elastic.

[0095] Please see Figure 6 , Figure 10 and Figure 11 In the illustrated embodiment, the side of the locking member 13 facing away from the engaging member 112 is provided with a second inclined surface 1342. The second inclined surface 1342 can abut against the limiting post 118, so that the locking member 13 can pass over the limiting post 118. Specifically, during the process of the locking member 13 moving to the unlocked position, the second inclined surface 1342 can abut against and guide the limiting post 118 to slide relative to the second inclined surface 1342, so that the locking member 13 can pass over the limiting post 118. Specifically, the side of the extension 134 facing away from the engaging member 112 is provided with a second inclined surface 1342, and along the direction from the second side 118b to the first side 118a, the distance from the second inclined surface 1342 to the main body 133 gradually increases.

[0096] In the illustrated embodiment, during the process of the locking member 13 moving from the locked position to the unlocked position, the first inclined surface 1181 abuts against the second inclined surface 1342 and slides relative to the second inclined surface 1342. The first inclined surface 1181 can guide the extension 134 of the locking member 13 to move, and the second inclined surface 1342 can guide the limiting post 118 to slide relative to the second inclined surface 1342. Through the abutting cooperation of the first inclined surface 1181 and the second inclined surface 1342, the locking member 13 can pass over the limiting post 118 more smoothly.

[0097] In one embodiment, the first side 118a of the limiting post 118 has a first inclined surface 1181, and the locking member 13 does not have a second inclined surface 1342. In another embodiment, the first side 118a of the limiting post 118 does not have a first inclined surface 1181, and the locking member 13 has a second inclined surface 1342.

[0098] It is easy to understand that when the blocking member 12 is rotated to open relative to the controller body 11, the locking member 13 is no longer stopped by the limiting post 118, and therefore will move toward the locked position under the action of the elastic force of the elastic member 123 and engage with the engaging member 112.

[0099] Please see Figure 1 , Figure 13 and Figure 14 In some embodiments, the controller 10 further includes a lever 122, which is slidably disposed on the outer side of the blocking member 12. A locking member 13 is disposed on the inner side of the blocking member 12. The lever 122 is connected to the locking member 13 and can drive the locking member 13 to slide on the blocking member 12, allowing the locking member 13 to be in a locked or unlocked position. Thus, by moving the lever 122, the locking member 13 can be switched between the locked and unlocked positions, thereby locking or unlocking the blocking member 12, making operation more convenient. Specifically, the lever 122 and the locking member 13 are disposed on opposite sides of the blocking member 12. The outer side of the blocking member 12 refers to the exposed side when the blocking member 12 is in the closed state, and the inner side of the blocking member 12 refers to the blocked side when the blocking member 12 is in the closed state. The inner and outer sides of the blocking member 12 are disposed opposite to each other.

[0100] Specifically, the controller 10 also includes a fastener 125, which passes through the shield 12 and connects the lever 122 and the locking member 13. For example, the fastener 125 can be a screw, and the lever 122 and the locking member 13 are connected as one unit by the screw to ensure that the lever 122 and the locking member 13 move synchronously.

[0101] Furthermore, the blocking member 12 is provided with a groove 127 and a through hole 128. The groove 127 is located on the outer side of the blocking member 12 and extends along the length of the controller body 11. The through hole 128 is located at the bottom of the groove 127 and has a length along the extension direction of the groove 127 (or, the through hole 128 is a strip-shaped hole). A fastener 125 passes through the through hole 128 and is movable along the extension direction of the through hole 128. A lever 122 is slidably disposed in the groove 127 to drive the locking member 13 to the locked or unlocked position.

[0102] The inner surface 1221 of the lever 122 is adapted to the bottom wall 1271 of the slide groove 127, allowing the lever 122 to move more smoothly, thereby enabling the locking member 13 to move more smoothly between the locked and unlocked positions. In this embodiment, both the inner surface 1221 of the lever 122 and the bottom wall 1271 of the slide groove 127 are planar. In other embodiments, both the inner surface 1221 of the lever 122 and the bottom wall 1271 of the slide groove 127 may be arc-shaped surfaces. The inner surface 1221 of the lever 122 refers to the surface of the lever 122 facing the bottom wall 1271 of the slide groove 127.

[0103] In this embodiment, the outer surface of the paddle 122 is provided with an anti-slip structure 129 to reduce slippage during paddle movement and thus reduce the difficulty of moving the paddle 122. In one embodiment, the anti-slip structure 129 is a plurality of spaced protrusions. In other embodiments, the anti-slip structure 129 may also be a plurality of spaced grooves.

[0104] Please see Figure 4 , Figure 6 and Figure 12 In one embodiment, the controller 10 further includes a rotating arm 116, one end of which is rotatably connected to the controller body 11, and the rotating arm 116 is slidably connected to the blocking member 12. When it is necessary to open the blocking member 12, the blocking member 12 can be pushed outward along the rotating arm 116 a certain distance, and then the rotating arm 116 can be rotated relative to the controller body 11 to flip the blocking member 12 so that it is open relative to the controller body 11. This reduces the space required for flipping the blocking member 12 in the controller body 11, and can maintain the miniaturization of the controller 10 and the simplicity of its overall appearance. Pushing the blocking member 12 outward means pushing the blocking member 12 in a direction away from the mounting surface 1111. In this embodiment, the rotating arm 116 is rotatably disposed at the opening of the mounting groove 111.

[0105] In one embodiment, the inner surface of the shielding member 12 is provided with a mounting protrusion 126, and the mounting protrusion 126 has a mounting channel 1261. The rotating arm 116 is slidably inserted in the mounting channel 1261. Thus, the shielding member 12 can be slidably moved along the rotating arm 116 by slidingly engaging the rotating arm 116 with the mounting channel 1261.

[0106] Furthermore, the rotating arm 116 is provided with a guide groove 1161, the extension direction of which is the same as the extension direction of the mounting channel 1261; the channel wall of the mounting channel 1261 is also provided with a mounting hole 1262, which communicates with the mounting channel 1261. The controller 10 also includes a pin 117, which passes through the mounting hole 1262 and slides in engagement with the guide groove 1161. By limiting the rotating arm 116 with the pin 117, the rotating arm 116 can be prevented from dislodging from the mounting channel 1261. At the same time, by sliding in engagement between the pin 117 and the guide groove 1161, the relative sliding stability of the shielding member 12 and the rotating arm 116 can be further improved.

[0107] For example, the number of rotating arms 116 is at least two, such as two, three, four or more. Correspondingly, the number of mounting protrusions 126 is also at least two, and the rotating arms 116 are respectively inserted into the mounting channels 1261 of the mounting protrusions 126, which can improve the stability of the shield 12 when it is flipped.

[0108] Please see Figure 2 , Figure 3 and Figure 5 This application also provides a controller assembly 1. The controller assembly 1 includes a controller 10 having the above-described structure and a connector 20.

[0109] Connector 20 also includes a connector 21, which is electrically connected to controller 10. For example, connector 21 can be plugged into controller body 11 to achieve electrical connection with controller 10. In the illustrated embodiment, connector 23 is rotatably disposed on connector 21 and can engage with controller body 11. By rotating connector 23, connector 23 can be engaged or disengaged from controller body 11. When connector 23 is engaged with controller body 11, connector 21 cannot be pulled off controller body 11; when connector 23 is disengaged from controller body 11, connector 21 can be pulled off controller body 11. In one embodiment, connector 23 is rotatably disposed on connector 21 and can be threadedly connected to controller body 11. By rotating connector 23, connector 23 can be connected or disengaged from controller body 11.

[0110] Specifically, connector 21 includes a first end 211 and a second end 212 disposed opposite to each other. The first end 211 is used for electrical connection with the blood pump (e.g., via a wire). Connector 23 is movably disposed at the second end 212 of connector 21. The second end 212 of connector 21 can be plugged into controller body 11.

[0111] The connector 23 can engage with the mating part 114 to lock the connector 21 onto the controller 10 or to unlock the connector 21. Specifically, the connector 21 can be inserted into the mating part 114. The connector 23 can rotate relative to the mating part 114, so that the connector 23 engages or disengages from the mating part 114.

[0112] Please see Figures 15 to 17 Optionally, in some embodiments, the connector 23 is rotatably sleeved on the second end 212 of the connector 21, and the connector 23 can be separated from the controller body 11 when it rotates relative to the controller body 11. Specifically, in one embodiment, the end of the connector 23 is provided with a hook 231, and the mating part 114 is provided with a latch 1141. When the connector 21 is inserted into the mating part 114, the hook 231 can be engaged in the latch 1141, thereby realizing the connection between the connector 20 and the controller 10. When it is necessary to remove the connector 20, by rotating the connector 23, the hook 231 is disengaged from the latch 1141, and the connector 21 is pulled out from the mating part 114, thereby realizing the separation between the connector 20 and the controller 10. In the illustrated embodiment, rotating the connector 23 counterclockwise disengages the hook 231 from the latch 1141. Specifically, the outer peripheral surface of the connector 23 may be provided with a rotation mark to indicate the rotation direction of the connector 23, so that the connector 23 is disengaged from the mating part 114.

[0113] In some embodiments, the controller assembly 1 further includes an anti-rotation member 24, which is connected to and rotates synchronously with the connector 23. Specifically, the anti-rotation member 24 can engage with the connector 23. The anti-rotation member 24 can abut against the controller body 11 to prevent the connector 23 from continuing to rotate relative to the connector 21 in a direction separating from the controller body 11, thereby preventing the connector 23 from disengaging from the controller body 11, and thus preventing the connector 20 from separating from the controller 10.

[0114] The anti-rotation member 24 is provided with a limiting protrusion 241, which can rotate synchronously with the connector 23. The engaging member 112 is located on the rotation path of the limiting protrusion 241, so that when the connector 23 rotates relative to the joint 21 in a direction separating from the controller body 11, the limiting protrusion 241 can abut against the engaging member 112 to prevent the connector 23 from continuing to rotate in the direction separating from the controller body 11, thereby maintaining the connection between the connector 20 and the controller 10. Specifically, the limiting protrusion 241 is provided on the outer peripheral surface of the anti-rotation member 24. The limiting protrusion 241 can abut against the second baffle 1122 of the engaging member 112.

[0115] In other words, the engaging member 112 can not only abut against the limiting protrusion 241 of the anti-rotation member 24 to prevent the connector 23 from continuing to rotate relative to the joint 21 in the direction of separation from the controller body 11, thereby preventing the connector 23 from disengaging from the controller body 11, but also cooperate with the locking member 13 to keep the blocking member 12 in the closed state and prevent the blocking member 12 from being accidentally opened. This realizes the reuse of the stopping function and locking function of the engaging member 112, eliminating the need to set both a stopping structure and a structure that cooperates with the locking member 13 at the same time, saving space in the controller 10 and facilitating the miniaturization of the controller assembly 1.

[0116] See Figure 18 and Figure 19 In some embodiments, the anti-rotation member 24 is an annular structure with a notch 244 extending through opposite ends of the anti-rotation member 24 along its axial direction, i.e., the anti-rotation member 24 is an open ring. By providing the notch 244, the anti-rotation member 24 can have a certain elasticity and its inner diameter can be adjusted. The width of the notch 244 can also be adjusted, which facilitates the anti-rotation member 24 to be fitted into or removed from the connector 23 by enlarging the notch 244.

[0117] The anti-rotation element 24 is made of a rigid material. In this embodiment, the anti-rotation element 24 is made of plastic. In other embodiments, the anti-rotation element 24 may also be made of metal.

[0118] In this embodiment, the axial direction of the anti-rotation member 24 refers to the extension direction of the central axis of the anti-rotation member 24, and all axial directions in this embodiment refer to the axial direction of the anti-rotation member 24. The circumferential direction of the anti-rotation member 24 refers to the circumferential direction of the anti-rotation member 24. The radial direction of the anti-rotation member 24 refers to the direction of the radius or diameter of the anti-rotation member 24.

[0119] Please see Figure 5 , Figures 19 to 21After the connector 21 is inserted into the controller body 11, the anti-rotation member 24 can be fitted onto the connector 23 by enlarging the notch 244. If the connector 23 is rotated at this time, the limiting protrusion 241 on the anti-rotation member 24 will abut against the engaging member 112 on the controller body 11 to limit the continued rotation of the connector 23, thereby preventing the hook 231 from disengaging from the latch 1141 and avoiding the separation of the connector 20 from the controller 10. When it is necessary to remove the connector 20, first remove the anti-rotation member 24 from the connector 23, then rotate the connector 23 to disengage the hook 231 from the latch 1141, and then pull the connector 21 away from the mating part 114 to separate the connector 20 from the controller 10.

[0120] In some embodiments, the connector 23 has an engaging end face 233, which is the end face of the connector 23 facing away from the first end 211 of the connector 21. The connector 21 can be inserted into the mating portion 114. When the connector 21 is inserted into the mating portion 114, the engaging end face 233 and the mounting surface 1111 are spaced apart and opposite to each other to form a limiting groove 115. Specifically, when the connector 21 is inserted into the mating portion 114 of the controller body 11, there is a gap between the engaging end face 233 and the mounting surface 1111 of the controller body 11, which forms an annular limiting groove 115, wherein the engaging end face 233 and the mounting surface 1111 are the two groove walls of the limiting groove 115.

[0121] The anti-rotation component 24 also includes an annular body 24a, one end of which is detachably fitted onto the connector 23. The annular body 24a can rotate synchronously with the connector 23. A limiting protrusion 241 is provided on the outer periphery of the annular body 24a. A notch 244 is provided on the annular body 24a, extending through the opposite ends of the annular body 24a along its axial direction, so that the inner diameter of the annular body 24a is adjustable.

[0122] Furthermore, the annular body 24a is provided with a buckle 242. When the connector 21 is inserted into the controller body 11, the end of the annular body 24a away from the connector 23 abuts against the mounting surface 1111. The buckle 242 is partially received in the limiting groove 115 and abuts against the engaging end face 233 to prevent the annular body 24a from sliding axially on the connector 23. This allows operators and users to rotate the connector 23 only by removing the anti-rotation part 24, so that the connector 21 can be pulled away from the controller body 11. Because the end of the annular body 24a furthest from the connector 23 abuts against the mounting surface 1111, and the buckle 242 abuts against the engaging end face 233, the annular body 24a is prevented from sliding axially on the connector 23. This makes it impossible for operators and users to directly remove the anti-rotation part 24. Instead, professional tools are required to remove the anti-rotation part 24 from the connector 23. This design makes it almost impossible for the connector 23 to rotate relative to the joint 21 and disengage from the controller 10 due to misoperation without the aid of professional tools. This also minimizes the risk of the joint 21 disengaging from the controller 10.

[0123] Specifically, when the anti-rotation member 24 is to be removed from the connector 23, a special tool is first used to remove the buckle 242 from the limiting groove 115, and then the anti-rotation member 24 is moved away from the mating part 114 to remove the anti-rotation member 24 from the connector 23.

[0124] In some embodiments, the anti-rotation member 24 is further provided with two slits 2431, each slit 2431 penetrating one end of the anti-rotation member 24 along the axial direction of the annular body 24a. The two slits 2431 are spaced apart circumferentially along the annular body 24a to form an elastic arm 243 between the two slits 2431, and a latch 242 is disposed at the end of the elastic arm 243, the latch 242 protruding relative to the inner wall of the annular body 24a. It can be understood that each slit 2431 does not penetrate the end of the anti-rotation member 24 facing the connector 21.

[0125] It is easy to understand that the elastic arm 243 can deform radially along the anti-rotation member 24. When the anti-rotation member 24 is installed onto the connector 23, the anti-rotation member 24 can be first fitted onto the outer periphery of the connector 23 and pushed toward the limiting groove 115. During this process, the buckle 242 first abuts against the outer periphery of the connector 23, so that the elastic arm 243 deforms radially along the anti-rotation member 24. When the anti-rotation member 24 is pushed until the buckle 242 corresponds to the position of the limiting groove 115, the elastic arm 243 resets, so that the buckle 242 is engaged in the limiting groove 115 and engaged with the end face of the connector 23, thereby increasing the connection strength between the anti-rotation member 24 and the connector 23.

[0126] Furthermore, in some embodiments, the annular body 24a may not have a notch 244. The anti-rotation member 24 can be sleeved on the connector 23 along the direction from the second end 212 to the first end 211. When the buckle 242 abuts against the engaging end face 233, the anti-rotation member 24 and the connector 23 can be assembled. Then, the connector 21 is inserted into the controller body 11 to connect the connector 20 and the controller 10. When the connector 21 is not inserted into the controller body 11 and the anti-rotation member 24 and the connector 23 are assembled together, since the end of the annular body 24a away from the connector 23 does not abut against the mounting surface 1111, the operator can remove the anti-rotation member 24 from the connector 23 when moving it along the direction from the first end 211 to the second end 212.

[0127] Please see Figure 15 , Figure 18 and 20 In some embodiments, the anti-rotation member 24 is detachably sleeved on the connector 23. One of the outer peripheral surface of the connector 23 and the inner peripheral surface of the anti-rotation member 24 is provided with a locking tooth 232, and the other is provided with a locking groove 245. The locking tooth 232 and the locking groove 245 engage with each other so that the anti-rotation member 24 and the connector 23 rotate synchronously. That is, the rotation of the connector 23 can drive the anti-rotation member 24 to rotate, so that the limiting protrusion 241 of the anti-rotation member 24 can abut against the locking member 112 on the controller body 11 to prevent the connector 23 from continuing to rotate relative to the connector 21 in the direction of separation from the controller 10.

[0128] In this embodiment, the outer peripheral surface of the connector 23 is provided with a locking tooth 232, and the inner peripheral surface of the anti-rotation member 24 is provided with a locking groove 245. Optionally, the locking tooth 232 is a ratchet. In other embodiments, the locking tooth 232 can also be a straight tooth or a helical tooth, and the locking groove 245 can be a corresponding straight groove or a helical groove.

[0129] Furthermore, the outer peripheral surface of the connector 23 is provided with multiple locking teeth 232, and the inner peripheral surface of the anti-rotation member 24 is provided with multiple locking grooves 245. The locking teeth 232 are engaged with the locking grooves 245 in a one-to-one correspondence, thereby further improving the connection strength between the anti-rotation member 24 and the connector 23.

[0130] Understandably, in other embodiments, a groove 245 may be provided on the outer peripheral surface of the connector 23, and a tooth 232 may be provided on the inner peripheral surface of the anti-rotation member 24. The synchronous rotation of the connector 23 and the anti-rotation member 24 can also be achieved by the cooperation of the groove 245 and the tooth 232.

[0131] In other embodiments, the anti-rotation member 24 is detachably connected to the outer peripheral surface of the connector 23. For example, the anti-rotation member 24 can be connected to the outer peripheral surface of the connector 23 by adhesive or snap-fit, allowing the anti-rotation member 24 to rotate with the connector 23. When it is necessary to disconnect the controller assembly 1 from the blood pump, the anti-rotation member 24 is removed from the connector 23, and the connector 23 is rotated to separate the connector 23 from the controller 10. Specifically, the anti-rotation member 24 can be a protruding structure or a rod-shaped structure.

[0132] Optionally, in some embodiments, the number of connectors 20 is at least two, and each connector 20 is used to electrically connect the controller 10 and the blood pump. For example, if there are two connectors 20, and both connectors 20 are connected to the blood pump, then when replacing the controller assembly 1, the connector 21 of one of the connectors 20 can be unplugged first and connected to the new controller assembly 1, and then the connector 21 of the other connector 20 can be unplugged and connected to the new controller. During this process, the blood pump can always be connected to the controller assembly 1 through at least one connector 20, avoiding the controller assembly 1 from stopping control of the blood pump and reducing the risk of the blood pump stopping operation due to the replacement of the controller assembly 1.

[0133] This application also provides a ventricular assist system, including a blood pump and any of the above-mentioned controller components 1, wherein a connector 21 electrically connects the blood pump and the controller body 11 to realize the electrical connection between the controller 10 and the blood pump.

[0134] The ventricular assist system includes a controller 10, and therefore also has all the technical effects of the controller 10. Thus, the ventricular assist system can also prevent the controller 10 from being separated from the connector 20 due to accidental operation of the connector 23 by the user during use, thereby reducing the risk of the controller 10 being disconnected from the blood pump due to accidental operation of the connector 23 and improving the safety of the ventricular assist system.

[0135] In one embodiment, the controller component 1 is not limited to use in a ventricular assist system. For example, the controller component 1 can also be used in other systems such as endoscopic surgical instrument control systems, infusion monitoring systems, and ventilators.

[0136] Optionally, in some embodiments, the blood pump includes a left ventricular pump and a right ventricular pump, and the controller assembly 1 includes a controller 10 and two connectors 20, each connector 20 being electrically connected to both the left and right ventricular pumps simultaneously. This ensures that both the left and right ventricular pumps can always be connected to the controller body 11 via at least one connector 20, reducing the risk of the left or right ventricular pump stopping operation due to replacement of the controller 10. This allows the controller 10 to be adapted to biventricular assist devices that simultaneously have left and right ventricular pumps, expanding the applicability of the controller 10.

[0137] 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.

[0138] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A controller capable of electrical connection to a connector, said connector having a connecting element for detachable connection to the controller, characterized in that, The controller includes: The controller body is detachably connected to the connector, and the controller body is provided with a locking component; A blocking member, the blocking member being rotatably disposed on the controller body; and A locking member is slidably disposed on the blocking member. By sliding the locking member, the locking member can be engaged or disengaged from the engaging member. When the locking member is engaged with the engaging member, the blocking member covers the controller body and can jointly block the connecting member with the controller body. The engagement of the locking member with the engaging member can prevent the blocking member from rotating relative to the controller body.

2. The controller according to claim 1, characterized in that, The controller also includes an elastic element, one end of which is connected to the blocking element and the other end of which is connected to the locking element. The elastic element can provide an elastic force to the locking element to maintain the locking element and the engaging element in an engaged state.

3. The controller according to claim 2, characterized in that, The engaging member has a latching groove and a guide surface. The latching groove has an opening, and the guide surface extends from the outside of the latching groove to the opening of the latching groove. The locking member includes a main body and a fastening part connected to the main body. The main body is slidably disposed on the blocking member. The fastening part can slide along the guide surface to the opening of the latching groove and enter the latching groove from the opening of the latching groove under the action of the elastic force to engage with the latching groove.

4. The controller according to claim 3, characterized in that, The controller also includes at least one of the following features: The guiding surface is an arc surface or a slope surface; The elastic element is a spring; When the shielding member is not covering the controller body, the position of the fastening part corresponds to the position of the guide surface, so that during the process of the shielding member rotating to cover the controller body, the fastening part can abut against the guide surface and slide along the guide surface.

5. The controller according to claim 2, characterized in that, The controller body is also provided with a limiting post. The limiting post and the engaging member are spaced apart along the sliding path of the locking member. The limiting post has a first side and a second side opposite to each other. The first side and the second side are arranged along the sliding path of the locking member. The first side is closer to the engaging member than the second side. When the locking member engages with the engaging member, the locking member is positioned close to the first side of the limiting post. The locking member can pass over the limiting post and abut against the second side of the limiting post under the action of the elastic member. When the locking member abuts against the second side of the limiting post, the locking member separates from the engaging member.

6. The controller according to claim 5, characterized in that, The locking member includes a main body, a fastening part connected to the main body, and an extension part connected to the fastening part. The main body is slidably disposed on the blocking member. The fastening part can engage with the locking member. When the fastening part engages with the locking member, the extension part is located between the first side of the limiting post and the locking member. The extension part can pass over the limiting post and abut against the second side of the limiting post under the action of the elastic member. Along the sliding path of the locking member, there is a gap between the limiting post and the locking member. When the blocking member does not cover the controller body, the position of the extension part corresponds to the position of the gap.

7. The controller according to claim 5, characterized in that, The first side of the limiting post is provided with a first inclined surface, and the locking member can slide along the first inclined surface and pass over the limiting post; and / or, the side of the locking member opposite to the engaging member is provided with a second inclined surface, and the second inclined surface can abut against the limiting post.

8. The controller according to claim 1, characterized in that, The controller also includes at least one of the following features: The controller body has a mounting slot that can accommodate the connector, the engaging member is disposed in the mounting slot, and the blocking member can block the mounting slot. The controller further includes a paddle, which is slidably disposed on the outside of the shield, and the latch is disposed on the inside of the shield. The paddle is connected to the latch and can drive the latch to slide on the shield. The sliding direction of the locking element is parallel to the rotation axis of the blocking element.

9. A controller assembly, characterized in that, include: The controller is the controller according to any one of claims 1-8; as well as The connector includes a connector and a connector. The connector is electrically connected to the controller body. The connector is rotatably disposed on the connector and can engage with the controller body. By rotating the connector, the connector can be engaged or disengaged from the controller body. The connector engages with the controller body to prevent the connector from detaching from the controller body.

10. The controller assembly according to claim 9, characterized in that, The controller assembly also includes an anti-rotation member connected to the connector. The anti-rotation member has a limiting protrusion that can rotate synchronously with the connector. The engaging member is disposed on the rotation path of the limiting protrusion so that when the connector rotates relative to the joint in a direction separate from the controller body, the limiting protrusion can abut against the engaging member.

11. The controller assembly according to claim 10, characterized in that, The controller body includes a mounting surface and a mating part disposed on the mounting surface. The connector can engage with the mating part and has a mating end face. The anti-rotation member also includes an annular body. The limiting protrusion is disposed on the outer periphery of the annular body. One end of the annular body is detachably sleeved on the connector. The annular body can rotate synchronously with the connector and has a buckle. The connector can be inserted into the mating part. When the connector is inserted into the mating part, the mating end face is spaced apart from and opposite to the mounting surface to form a limiting groove. The end of the annular body away from the connector abuts against the mounting surface. The buckle portion is received in the limiting groove and abuts against the mating end face to prevent the annular body from sliding axially on the connector.

12. A ventricular assist system, characterized in that, Includes a blood pump and a controller assembly as described in any one of claims 9-11, wherein the connector electrically connects the blood pump and the controller body.

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