Separation assembly and puncture outfit

Abstract

The embodiment of the invention relates to a medical instrument, and discloses a partition assembly which comprises a partition lower base body, a partition upper base body and a partition lower base body. The multi-channel sealing valve is embedded in the hollow cavity of the first end part for separating the lower base body; the upper separating cover body is detachably connected to the first end part of the lower separating base body and covers the multi-channel sealing valve; wherein the lower separating base body is directly connected with the upper separating cover body, and one or both of the lower separating base body and the upper separating cover body are in positioning connection with the multi-channel sealing valve. Therefore, the lower separating base body is directly connected with the upper separating cover body, the structure is simplified, and the connecting stability and the assembling efficiency are improved; one or both of the lower separating base body and the upper separating cover body is / are connected with the multi-channel sealing valve in a positioning manner, so that accurate limiting can be realized, the multi-channel sealing valve is prevented from moving and shifting, and sealing and channel correspondence are ensured; and the upper cover body is detachable, so that the multi-channel sealing valve is convenient to replace. The invention further discloses a puncture outfit.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a separation assembly and a puncture device. Background Art

[0002] When performing single-port surgery with a laparoscopic surgical robot, a multi-channel trocar is typically used. This trocar is primarily used to separate the robotic system's surgical instruments from the endoscope, preventing interference and friction between the instruments and the endoscope. It typically consists of a trocar separator and a main body.

[0003] The separation assembly of the relevant puncture device is not only that the lower base and the upper cover are often indirectly connected through an intermediate piece, resulting in a complex structure, poor connection stability and low assembly efficiency; but also the multi-channel sealing valve lacks effective positioning and is prone to movement and displacement under instrument operation or pressure, affecting the sealing performance and channel correspondence. Summary of the Invention

[0004] An object of the present application is to provide a separation assembly and a puncture device to at least solve the above-mentioned problems.

[0005] To achieve the above objectives, some embodiments of the present application provide a separation assembly, including:

[0006] The lower base is separated, and the first end portion is a hollow cavity structure;

[0007] A multi-channel sealing valve is embedded in the hollow cavity at the first end portion of the separating lower base body;

[0008] The partition upper cover is detachably connected to the first end of the partition lower base and is covered with a multi-channel sealing valve;

[0009] The partitioned lower base is directly connected to the partitioned upper cover, and one or both of the partitioned lower base and the partitioned upper cover are positioned and connected to the multi-channel sealing valve.

[0010] Some embodiments of the present application further provide a puncture device comprising the separation assembly provided in the aforementioned embodiments.

[0011] Compared with the related art, in the solution provided in the embodiment of the present application, the partition lower base and the partition upper cover are directly connected, which can simplify the assembly structure, reduce the connecting intermediate parts, improve the stability and reliability of the connection between the two, avoid loosening or displacement caused by the indirect connection of multiple components, and shorten the assembly path and improve assembly efficiency; one or both of the partition lower base and the partition upper cover are positioned and connected to the multi-channel sealing valve, which can form precise limits on the multi-channel sealing valve from one direction or two directions, effectively preventing it from axial movement, circumferential rotation or radial displacement during instrument insertion and removal, pneumoperitoneum pressure or component rotation, ensuring the position stability of the sealing valve, and thus ensuring its sealing performance and correspondence with the upper and lower component channels; in addition, the partition upper cover can be detachably connected to the partition lower base, which is convenient for quick disassembly and assembly to replace the multi-channel sealing valve, meeting the clinical demand for high-frequency replacement of sealing valves (such as disposable use), and at the same time, combined with the positioning connection structure, the precise positioning of the multi-channel sealing valve can still be quickly restored after replacement, taking into account convenience and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0013] Figure 1 is a schematic structural diagram of a trocar provided by an embodiment of the present disclosure;

[0014] Figure 2 is an exploded schematic diagram of a main body and a rotating assembly provided by an embodiment of the present disclosure;

[0015] Figure 3 is a partial cross-sectional schematic diagram of a main body and a rotating assembly provided by an embodiment of the present disclosure;

[0016] Figure 4 1 is a schematic structural diagram of a ring cover of a turntable provided in an embodiment of the present disclosure;

[0017] Figure 5 is a schematic structural diagram of a fixing portion of a turntable provided in an embodiment of the present disclosure;

[0018] Figure 6 is an exploded schematic diagram of another structure of the main body and the rotating assembly provided by an embodiment of the present disclosure;

[0019] Figure 7 is a partial cross-sectional schematic diagram of another structure of the main body and the rotating assembly provided by an embodiment of the present disclosure;

[0020] Figure 8 is a schematic diagram of another structure of a turntable provided by an embodiment of the present disclosure;

[0021] Figure 9 Schematic diagram of the structure of a one-way valve body provided by an embodiment of the present disclosure;

[0022] Figure 10 This is a structural schematic diagram of the one-way valve body provided by an embodiment of the present disclosure from another perspective;

[0023] Figure 11 Schematic diagram of the structure of the one-way valve cover provided by an embodiment of the present disclosure;

[0024] Figure 12 is a partial cross-sectional schematic diagram of a main body, a one-way valve, and a rotating assembly provided by an embodiment of the present disclosure;

[0025] Figure 13 is a schematic diagram of another structure of a one-way valve cover provided by an embodiment of the present disclosure;

[0026] Figure 14 is a partial cross-sectional schematic diagram of another structure of a one-way valve and a rotating assembly provided in an embodiment of the present disclosure;

[0027] Figure 15 is an exploded schematic diagram of a partition assembly provided by an embodiment of the present disclosure;

[0028] Figure 16 is a partial cross-sectional schematic diagram of a partition assembly provided by an embodiment of the present disclosure;

[0029] Figure 17 is an exploded schematic diagram of another structure of a partition assembly provided by an embodiment of the present disclosure;

[0030] Figure 18 1 is a schematic diagram of the structure of the separated upper portion and the rotating cover provided by an embodiment of the present disclosure;

[0031] Figure 19 is an exploded schematic diagram of a partitioned upper portion provided by an embodiment of the present disclosure;

[0032] Figure 20 It is a schematic structural diagram of the separated upper portion provided by an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 10: Main body; 101: Flange; 102: Sealing groove;

[0035] 20: Turntable; 201: Ring cover; 2011: First ring portion; 2012: Second ring portion; 2013: Slot; 2014: Screw column structure; 2015: Connecting portion; 2016: Mounting portion; 202: Fixing portion; 2021: Ball groove; 2022: Ring groove; 2023: Screw hole structure; 203: Ball pressure cover; 2031: Ball matching groove; 204: Ball; 205: Separation buckle; 206: Elastic member;

[0036] 30: Partition assembly; 301: Partition lower base; 3011: First assembly portion; 3012: Screw cap; 3013: Raised structure; 3014: Lower assembly portion; 3015: First channel; 302: Multi-channel sealing valve; 3021: Second assembly portion; 3022: Sealing element; 3023: Second channel; 303: Partition upper cover; 3031: First assembly portion; 3032: Spiral groove; 3033: Upper body; 3034: Snap ring; 3035: Upper bottom cover; 3036: First opening;

[0037] 40: one-way valve; 401: valve body; 4011: groove; 4012: sealing skirt; 402: valve cover; 4021: connection part;

[0038] 50: Sealing ring. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0040] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0042] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0043] Unless otherwise stated, the term "plurality" means two or more.

[0044] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0045] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0047] Combine Figures 1 to 20 As shown, an embodiment of the present disclosure provides a trocar, comprising: a main body 10 and a rotating assembly. The main body 10 is a hollow structure, with a protruding flange portion 101 formed at the end. The rotating assembly is detachably connected to the main body 10 and can rotate relative to it. The rotating assembly includes a rotating disk 20 and a ball 204 disposed on the rotating disk 20. The rotating disk 20 is detachably connected to the flange portion 101, and the ball 204 is in rolling contact with the outer surface of the main body 10, so that the rotating disk 20 rotates relative to the main body 10 under the rolling action of the ball 204.

[0048] The puncture device provided by the embodiment of the present disclosure changes the traditional sliding friction into rolling friction by arranging balls between the main body and the rotating assembly, thereby significantly reducing the rotational resistance between the separation assembly 30 and the main body, avoiding torsional deformation of the instrument rod due to excessive resistance, and improving surgical accuracy and safety; the rolling contact mode of the balls ensures that the turntable 20 can rotate flexibly around the central axis of the main body, adapting to the circular motion requirements of instruments and endoscopes in single-port surgery of laparoscopic surgical robots; in addition, the rotating assembly and the main body are detachably connected, which is convenient for assembly and maintenance.

[0049] The flange at the end of the main body provides an axial limit for the turntable. Combined with the rolling contact between the ball bearings and the outer surface of the main body, this ensures precise rotation of the turntable around the main body's central axis, preventing radial deviation or shaking during rotation and improving the stability of the trocar's overall structure. Furthermore, the hollow structure of the main body meets the requirements for the insertion of surgical instruments and endoscopes. The flexible rotation of the rotating assembly is suitable for the circular motion of multiple instruments during single-port surgery, reducing interference between instruments and improving surgical efficiency.

[0050] This embodiment provides a solution for use with a separation assembly. The separation assembly 30 is inserted into the main body to separate surgical instruments. The rotating assembly is securely connected to the separation assembly 30. The turntable 20 is detachably connected to the flange 101, and the balls 204 roll in contact with the outer surface of the main body 10. The rolling action of the balls 204 causes the rotating assembly to rotate relative to the main body 10.

[0051] By arranging balls between the main body and the rotating component, the traditional sliding friction is changed to rolling friction, which significantly reduces the rotational resistance between the separation component 30 and the main body, avoids the torsional deformation of the instrument rod due to excessive resistance, and improves the surgical accuracy and safety; the rolling contact method of the balls ensures that the separation component 30 can rotate flexibly around the central axis of the main body, adapting to the circular motion requirements of instruments and endoscopes in single-port surgery of laparoscopic surgical robots.

[0052] This embodiment aims to reduce the rotational resistance between the partition assembly 30 and the main body of a surgical robot single-port trocar. A rotating assembly is added to the trocar body, and rolling friction between the rotating assembly and the trocar body is used to achieve low rotational resistance. The trocar partition assembly 30 is connected to the rotating assembly, enabling low-resistance rotation between the two.

[0053] Since pneumoperitoneum pressure will be built up after the trocar enters the abdominal cavity, in order to ensure that the pneumoperitoneum pressure does not leak during the rotation of the rotating assembly, an O-shaped sealing groove 102 is formed on the upper part of the trocar body 10. When in use, the O-shaped sealing ring 50 is inserted and cooperates with the inner wall of the ring cover 201 of the turntable 20 to achieve sealing.

[0054] Optionally, the inner sidewall of the ring cover 201 is stepped, and the ring cover 201 surrounds and overlaps the end of the main body 10. A sealing ring 50 is disposed between the ring cover 201 and the main body 10. The sealing ring 50 is installed in the O-ring sealing groove 102. After the sealing ring 50 is installed, the stepped ring cover 201 overlaps the end of the main body 10, further sealing the gap where the sealing ring 50 is located, thereby improving the sealing effect.

[0055] Optionally, there is a certain distance between the end surface of the flange portion 101 close to the edge of the first end portion of the main body and the edge of the first end portion of the main body.

[0056] This distance is designed as a reserved space for the installation of a rotating component (such as a turntable 20), which facilitates axial limitation of the turntable 20 and the flange portion 101, and provides a position for the installation of a sealing ring 50 (such as an O-ring) to ensure sealing under pneumoperitoneum pressure.

[0057] In some embodiments, a sealing groove 102 is configured on the outer wall of the main body between the end surface of the flange portion 101 and the edge of the first end for installing a sealing ring 50. The sealing ring 50 seals the connection gap between the first end of the main body and the turntable 20.

[0058] The gap between the turntable 20 and the main body is filled with a sealing ring 50 (such as an O-ring) to form a dynamic sealing structure to prevent gas leakage under pneumoperitoneum pressure, ensure the stability of the surgical environment, and at the same time not affect the flexible rotation of the rotating component.

[0059] Optionally, the turntable 20 includes: a ring cover 201, which is sleeved on the end of the main body 10 and covers the outside of the flange portion 101; a fixing portion 202, which is located below the flange portion 101 and is configured with multiple ball grooves 2021 for installing balls; wherein the ring cover 201 and the fixing portion 202 are detachably connected, or the fixing portion 202 extends from the ring cover 201 in a snap-fit ​​shape to form an axial limit with the flange portion 101.

[0060] The detachable connection (such as screw fixing) or snap-on structure facilitates the disassembly and maintenance of the rotating assembly. At the same time, the flange part 101 is clamped by the ring cover 201 and the fixing part 202 or the snap-on limit is used to ensure the axial positioning accuracy between the turntable 20 and the main body, avoid axial movement during rotation, and improve structural stability.

[0061] Optionally, the height of the ring cover 201 is greater than the distance from the end face of the flange portion 101 to the edge of the first end portion of the main body 10. The height of the ring cover 201 exceeds the end face of the flange portion 101, and can completely cover the outside of the flange portion 101, providing sufficient installation space for the sealing structure (such as the sealing ring 50) between the turntable 20 and the main body, while also enhancing the overall packaging of the rotating assembly and preventing external contaminants from entering the ball contact area.

[0062] Optionally, the ring cover 201 includes an annular first ring portion 2011 and a second ring portion 2012 that protrudes outward from the outer circumference of the first ring portion 2011 and bends and extends, wherein the second ring portion 2012 extends toward the side where the flange portion 101 is located and is arranged around the outer edge of the flange portion 101, that is, the cover is arranged on the outside of the flange portion 101.

[0063] The annular structure of the second ring portion 2012 forms protection and limitation for the flange portion 101, and cooperates with the ball guide turntable 20 to rotate precisely around the central axis of the main body, while providing an installation interface (such as the top thread of the ring cover 201) for the one-way valve 40 component (such as the valve cover 402) to achieve functional integration.

[0064] In some embodiments, the cross arm of the second ring portion 2012 is aligned with or spaced apart from the upper surface of the flange portion 101 by a predetermined distance, thereby defining a chamber between the second ring portion 2012 and the flange portion 101. This aligned design enhances the axial positioning accuracy of the turntable 20 and the flange portion 101; the chamber formed by the spacing design can accommodate other functional components (such as the U-shaped snap fastener of the valve cover 402 of the one-way valve 40), optimizing space utilization while allowing a slight rotational clearance between the turntable 20 and the main body to reduce frictional resistance.

[0065] Optionally, in the case where the ring cover 201 and the fixing portion 202 are detachably connected, the outer circumference of the ring cover 201 is constructed with a plurality of screw column structures 2014, and the outer circumference of the fixing portion 202 is constructed with a plurality of screw hole structures 2023. The screw column structures 2014 and the screw hole structures 2023 cooperate with each other to install screws, thereby realizing the detachable connection between the ring cover 201 and the fixing portion 202. In this way, the ring cover 201 and the fixing portion 202 clamp the flange portion 101, limiting the axial position of the turntable 20 and the flange portion 101. Figure 4 and Figure 5 shown.

[0066] Preferably, screw post structure 2014 and screw hole structure 2023 protrude from ring cover 201 and fixing portion 202, respectively, to facilitate a better connection between the two. The screw connection provides reliable mechanical fixing force, ensuring the structural stability of the rotating assembly during high-frequency rotation. The design of the clamping flange 101 evenly distributes the balls around the outer periphery of flange 101, providing more balanced force and further reducing the fluctuation of rotational resistance.

[0067] Optionally, the screw hole structure 2023 avoids the setting of the ball groove 2021 to avoid conflict between the screw installation and the ball groove 2021 position, ensure that the normal installation and rolling trajectory of the ball are not disturbed, and maintain the low resistance characteristics of the rotating component.

[0068] In this embodiment, the ball is located in the ball groove 2021, and the rolling range of the ball is limited by the ball groove 2021. When the fixing portion 202 and the flange portion 101 are axially limited, the ball is located between the fixing portion 202 and the flange portion 101, which not only enables rolling contact between the ball and the flange portion 101, but also prevents the ball from falling off the turntable 20 through the flange portion 101, thereby ensuring the rotational stability between the turntable 20 and the main body.

[0069] The ball groove 2021 limits the circumferential motion range of the ball, and the flange portion 101 serves as a stop structure to prevent the ball from falling off axially, forming a closed rolling contact system, avoiding component loss or jamming, and improving the reliability and service life of the puncture device.

[0070] When the fixing portion 202 extends from the ring cover 201 in a snap-fit ​​configuration, it snaps onto the lower edge of the flange portion 101, thereby limiting the axial position of the turntable 20 and the flange portion 101. This snap-fit ​​structure simplifies the assembly process, allowing for quick positioning of the turntable 20 and the main body without the need for additional fasteners. It also utilizes material elasticity (such as the deformation of plastic snaps) to accommodate minute tolerances, improving production efficiency.

[0071] The turntable 20 of this embodiment clamps the flange portion 101 through the ring cover 201 and the fixing portion 202 or is clamped to the lower edge of the flange portion 101 through the fixing portion 202, thereby achieving axial limitation of the turntable 20 and the flange portion 101, and then under the action of the ball, the turntable 20 can rotate around its axis relative to the flange portion 101 and the main body.

[0072] Optionally, when the fixing portion 202 is detachably connected to the ring cover 201, a ring groove 2022 is formed on the surface of the fixing portion 202 facing the flange portion 101, and the ball groove 2021 is located in the ring groove 2022, so that the ball is located in the ring groove 2022 after being separated from the ball groove 2021, thereby preventing the ball from being separated from the fixing portion 202. Figure 2 and Figure 3 shown.

[0073] The annular groove 2022 and the flange portion 101 form a closed space. Even if the ball escapes from the ball groove 2021 , it is still confined in the annular groove 2022 , thereby preventing the ball from falling off during surgery, causing instrument jamming or abdominal cavity contamination, and enhancing safety.

[0074] The fixing portion 202 is an annular structure, which is sleeved on the outside of the main body. The ring cover 201 and the fixing portion 202 clamp the flange portion 101 therebetween, thereby limiting the axial position of the turntable 20 and the flange portion 101 .

[0075] The ball groove 2021 is disposed within the annular groove 2022, with the annular groove 2022 facing the flange portion 101. After the ball exits the ball groove 2021, it remains within the annular groove 2022. Thus, a relatively closed space is defined by the flange portion 101 and the annular groove 2022 of the fixed portion 202, preventing the ball within the annular groove 2022 from falling out of the fixed portion 202. The annular groove 2022 is disposed around the circumference of the fixed portion 202. Thus, the ball can roll within the annular groove 2022, ensuring relative rotation between the turntable 20 and the main body.

[0076] Optionally, the joint and detachable connection between the ring cover 201 and the fixed portion 202 are arranged to avoid the annular groove 2022 and the ball groove 2021. For example, the outer edge of the fixed portion 202 is aligned and abutted with the outer edge of the ring cover 201. This structural avoidance design ensures that the movement of the ball is not interfered with by the connection portion 2015. The aligned and abutted outer edges smooth the outer surface of the turntable 20, reducing friction with other components (such as surgical instruments) and facilitating a uniform fit of sealing structures (such as O-rings).

[0077] Optionally, when the fixing portion 202 extends from the ring cover 201 and is configured in a buckle-like manner, the turntable 20 further includes: a ball pressure cover 203, which is provided at the end of the fixing portion 202 and is configured with a ball matching groove 2031 to prevent the ball from escaping from the fixing portion 202; wherein a portion of the ball protrudes from the ball matching groove 2031 to make rolling contact with the flange portion 101. Figures 6 to 8 shown.

[0078] The ball pressure cover 203 further limits the displacement of the ball, preventing the ball from being lost even when the turntable 20 is separated from the main body (such as during transportation or maintenance); the protruding mating groove of the ball part ensures effective contact with the flange part 101, maintaining the rolling friction characteristics.

[0079] For example, the fixing portion 202 is formed in a partial area of ​​the ring cover 201 and extends from the ring cover 201 to form a buckle shape. Part of the side edge of the fixing portion 202 is separated from the ring cover 201 to accommodate the buckle-shaped deformation of the fixing portion 202 and prevent the entire turntable 20 from deforming.

[0080] Optionally, when the fixing portion extends from the ring cover in a snap-fit ​​configuration, the first edge and / or second edge of the fixing portion are separated from the ring cover; wherein the first and second edges of the fixing portion are parallel to the axis of the ring cover. This structural design provides ample space for deformation of the fixing portion during the snap-fit ​​connection process.

[0081] Because the first and / or second edges are not connected to the ring cover, the fixing portion can freely bend, contract, and deform around the connection point with the ring cover during the snap-fit ​​operation without causing the ring cover to deform as well. The fact that the first and second edges are parallel to the ring cover axis further ensures the proper deformation direction of the fixing portion, precisely adapting it to the requirements of the snap-fit ​​connection. This ensures a secure snap-fit ​​while effectively preventing the ring cover from deforming as a result of the fixing portion's deformation.

[0082] The free end of the fixed portion 202 is constructed with a ball groove 2021. The ball is located within the groove 2021 and contacts the flange 101. The rotation of the ball enables the turntable 20 to rotate relative to the flange 101 and the main body. The provision of a ball pressure cover 203 further limits the displacement of the ball, preventing it from falling out of the fixed portion 202 when it is separated from the flange 101. This also facilitates transportation of the entire assembly and prevents the ball from being lost.

[0083] Optionally, the rotating assembly also includes: a partition buckle 205, which is rotatably connected to the outer wall of the turntable 20 for being clamped and fixed with the partition assembly 30; wherein, an elastic member 206 is provided at the rotating connection between the partition buckle 205 and the turntable 20, so that the partition buckle 205 can be reset under the elastic force of the elastic member 206, thereby keeping the turntable 20 and the partition assembly 30 fixed.

[0084] The elastic member 206 (torsion spring) automatically resets the separation buckle 205 and maintains the engagement state with the separation assembly 30. Even if there is a slight shake during the rotation of the puncture device, the connection reliability can still be maintained to prevent the separation assembly 30 from loosening and causing interference with the instrument.

[0085] The outer wall of the turntable 20 is protruding with a mounting portion 2016, and the partition buckle 205 is connected to the mounting portion 2016 through an axis rotation, and an elastic member 206 (such as a torsion spring) is sleeved on the axis. In this way, the partition buckle 205 is kept fixed with the partition assembly 30 under the action of the elastic member 206, thereby ensuring the fixing effect of the rotating assembly and the partition assembly 30.

[0086] In some embodiments, the ring cover 201 and the fixing portion 202 of the turntable 20 are made of metal or polymer, and the ball can be made of metal or a polymer with good self-lubricating properties (such as PTFE). The fixing portion 202 of the turntable 20 is annular, with multiple ball grooves 2021 evenly distributed around the circumference on one side. The outer circumference of the ring is evenly distributed with screw holes for fixing it to the ring cover 201 of the turntable 20 by screws. The outer circumference of the ring cover 201 of the turntable 20 is distributed with screw posts for connecting with the fixing portion 202 and a mounting portion 2016 connected to the separating clip 205. The upper portion of the ring cover 201 of the turntable 20 is threaded and can be matched with the valve cover 402 of the one-way valve 40 to facilitate replacement of the one-way valve 40 (cross valve) installed therein. When assembling the rotating assembly, first install the ball into the ball groove 2021 corresponding to the fixed part 202 of the turntable 20, then pass the fixed part 202 of the turntable 20 through the puncture body and connect it to the ring cover 201 of the turntable 20 by threading. At this time, the ring cover 201 of the turntable 20 and the fixed part 202 can be fixed on the flange part 101 protruding from the end of the puncture body and can rotate around the central axis of the puncture body.

[0087] In some embodiments, the rotating disc 20 ring cover 201 is uniformly provided with a buckle-shaped structure (i.e., the fixed part 202 is extended and configured from the ring cover 201), which can be matched with the flange part 101 protruding from the top of the puncture device body to axially limit the rotating disc 20, and a plurality of ball grooves 2021 are uniformly distributed on each fixed part 202 (buckle-shaped structure). After the rotating disc 20 is buckled with the puncture device body, the balls are loaded into the corresponding ball grooves 2021, and the ball gland 203 is covered on the ball grooves 2021 of the fixed part 202. The materials of the rotating disc 20 and the ball gland 203 are plastic materials, and the connection mode of the two can be welding or bonding. The ball material can be metal or plastic material with good self-lubricating property (such as PTFE, etc.).

[0088] The separation assembly 30 of the puncture device mainly functions to separate the robotic surgical instruments and the endoscope during single-hole surgery, preventing mutual interference and friction between the robotic surgical instruments and the endoscope.

[0089] In combination Figures 15 to 20 As shown, the separation assembly provided by the embodiments of the present disclosure is used for a puncture device. The separation assembly comprises a separation lower base 301, the first end of which is a hollow cavity structure; a multi-channel sealing valve 302 embedded in the first end hollow cavity of the separation lower base 301; and a separation upper cover 303 detachably connected to the first end of the separation lower base 301 and covering the multi-channel sealing valve 302. The separation lower base 301 is directly connected to the separation upper cover 303, and one or both of the separation lower base 301 and the separation upper cover 303 is / are positioned and connected to the multi-channel sealing valve 302.

[0090] By using the separation assembly provided by the embodiments of the present disclosure, the separation lower base is directly connected to the separation upper cover, which can simplify the assembly structure, reduce the intermediate connection parts, improve the stability and reliability of the connection between the two, avoid loosening or displacement caused by indirect connection between multiple parts, shorten the assembly path, and improve the assembly efficiency. One or both of the separation lower base and the separation upper cover is / are positioned and connected to the multi-channel sealing valve, which can precisely position the multi-channel sealing valve from a single direction or a double direction, effectively prevent the axial movement, circumferential rotation or radial deviation of the multi-channel sealing valve during the instrument insertion and removal, gas pressure action or assembly rotation, ensure the position stability of the sealing valve, and further ensure the sealing performance and the correspondence with the channels of the upper and lower parts. In addition, the separation upper cover is detachably connected to the separation lower base, which facilitates quick disassembly and replacement of the multi-channel sealing valve, meets the demand for high-frequency replacement (such as disposable use) of the sealing valve in clinical practice, and still quickly recovers the precise positioning of the sealing valve after replacement by combining the positioning and connecting structure, which takes into account the convenience and reliability.

[0091] In this embodiment, the partitioned lower base 301 is constructed with multiple first channels 3015 along the axial direction from the first end to the second end; the multi-channel sealing valve 302 is constructed with multiple second channels 3023; wherein, the partitioned upper cover 303 is constructed with multiple first openings 3036, and each first opening 3036, second channel 3023 and first channel 3015 are all connected in sequence along the axial direction.

[0092] The separation component 30 provided in this embodiment ensures that surgical instruments and endoscopes can smoothly pass through the separation component 30 through the combined structure of the separation lower base 301, the multi-channel sealing valve 302 and the separation upper cover 303, combined with the axial corresponding connection design of the first port 3036, the second channel 3023 and the first channel 3015, thereby achieving physical separation of surgical instruments and endoscopes, avoiding mutual interference and friction between instruments, and ensuring surgical safety; the detachable design of the separation upper cover 303 facilitates the rapid replacement of the multi-channel sealing valve 302, meets the clinical requirements for cleaning or disposable use of sealing components, and reduces the risk of cross infection.

[0093] Optionally, the partition lower base 301 is constructed with a first assembly portion 3011 at the first end, and the partition upper cover 303 is constructed with a first assembly matching portion 3031. The first assembly portion 3011 and the first assembly matching portion 3031 cooperate with each other to make the partition lower base 301 and the partition upper cover 303 detachably connected.

[0094] The mating structure of the first assembly portion 3011 and the first assembly mating portion 3031 provides precise connection and positioning between the lower base 301 and the upper cover, ensuring that the two will not deviate axially or radially after assembly, and maintaining a stable channel correspondence. The detachable feature simplifies the assembly and disassembly of the upper cover 303, allowing medical personnel to quickly replace or maintain the multi-channel sealing valve 302, thereby improving clinical efficiency.

[0095] The partition upper cover 303 is detachably connected to the first end of the partition lower base 301, thereby covering the multi-channel sealing valve 302. When the multi-channel sealing valve 302 needs to be replaced, the partition upper cover 303 is removed from the partition lower base 301, and the first assembly matching portion 3031 is separated from the first assembly portion 3011, and the multi-channel sealing valve 302 can be replaced.

[0096] Optionally, the first assembly portion 3011 is a planar slot structure or a buckle structure, and the first assembly matching portion 3031 is a buckle structure or a slot structure. The first assembly portion 3011 and the first assembly matching portion 3031 are connected by the buckle structure and the slot structure, so that the partition lower base 301 and the partition upper cover 303 are detachably connected. Figure 15 and Figure 16 shown.

[0097] The snap-fit ​​and slot-type connection ensures rapid assembly and disassembly, requiring no additional tools, making it ideal for emergency component replacement during surgery. The planar slot and snap-fit ​​structure effectively restrict the circumferential rotation of the upper cover 303 and lower base 301, ensuring consistent communication and preventing instrument insertion or distortion caused by relative rotation.

[0098] The multi-channel sealing valve 302 is a replaceable component whose main function is to ensure one-way air blocking when the instrument and endoscope are not inserted and to ensure sealing after the instrument and endoscope are inserted. The partition lower base 301, the partition upper cover 303 and the multi-channel sealing valve 302 all contain corresponding instrument channels and endoscope channels. During installation, the multi-channel sealing valve 302 is placed in the hollow cavity of the partition lower base 301. The partition upper cover 303 and the partition lower base 301 can be connected by a slot structure and a buckle structure, and the multi-channel sealing valve 302 is axially limited. When disassembling, the buckle of the partition upper cover 303 can be pressed to remove it and then the multi-channel sealing valve 302 therein can be replaced.

[0099] In some embodiments, the outer circumference of the separator lower base 301 is configured with an annular ring platform, and the clamping groove structure is configured on the ring platform or on the outer circumference of the ring platform and the separator lower base 301. One end of the separator buckle is rotatably connected to the turntable, and the other end can be clamped to the ring platform for positional fixation.

[0100] Optionally, the first assembly portion 3011 is a protrusion structure 3013 or a spiral groove 3032 structure, and the first assembly fitting portion is a spiral groove 3032 structure or a protrusion structure 3013. The first assembly portion 3011 and the first assembly fitting portion 3031 slide along the spiral groove 3032 structure through the protrusion structure 3013 to form a snap-on screw structure, so that the separated lower base 301 and the separated upper cover 303 can be detachably connected.

[0101] The snap-on, twist-lock mechanism generates an axial preload through spiral motion during connection, securing the upper cover 303 and lower base 301. This prevents loosening during frequent insertion and removal of surgical instruments or under pressure from pneumoperitoneum. The spiral-sliding assembly method allows for accurate connection based on the rotation angle, improving assembly accuracy. Disassembly requires only reverse rotation, making it easy to operate.

[0102] Exemplarily, the raised structure 3013 of the partitioned lower base 301 is aligned with the opening of the spiral groove 3032 of the partitioned upper cover 303, and the raised structure 3013 enters from the opening of the spiral groove 3032. The partitioned lower base 301 and the partitioned upper cover 303 rotate relative to each other so that the raised structure 3013 rotates to the bottom of the spiral groove 3032 and is fixed, thereby realizing the connection and fixation of the partitioned lower base 301 and the partitioned upper cover 303.

[0103] The rotational locking connection between the protrusion structure 3013 and the spiral groove 3032 provides a quick assembly experience of "rotate and lock", which can be completed without tools, and is suitable for quick operation in clinical emergencies; multiple sets of protrusion structures 3013 (such as two) can enhance the connection stability and prevent one-way rotation from loosening.

[0104] In some embodiments, the partitioned lower base 301 includes two protrusions 3013. Similarly, the partitioned upper cover 303 is configured with a spiral groove 3032 that matches the two protrusions 3013. Thus, the two protrusions 3013 are respectively slidably connected to the two spiral grooves 3032, further improving the firmness and stability of the connection between the partitioned upper cover 303 and the partitioned lower base 301.

[0105] In some embodiments, the protrusion structure 3013 is constructed on the outer side wall separating the lower base 301 , and the spiral groove 3032 is constructed on the inner side wall separating the upper cover 303 .

[0106] In some embodiments, the partition lower portion further includes a screw cap 3012, which is sleeved on the partition lower portion base 301 or integrally formed with the partition lower portion base 301. The screw cap 3012 has a protrusion structure 3013 formed therein, and a spiral groove 3032 is formed on the outer wall of the partition upper portion cover 303. In this way, the partition upper portion cover 303 is connected to the screw cap 3012, that is, the partition upper portion cover 303 is connected to the partition lower portion base 301.

[0107] In some embodiments, the upper separator cover 303 and the lower separator base 301 can be detachably connected via a threaded connection. The threaded connection provides a stable mechanical fastening force, preventing the separator assembly 30 from loosening under high-pressure pneumoperitoneum conditions. Disassembly requires only a rotation operation, allowing medical personnel to quickly replace the sealing valve and shorten surgical preparation time.

[0108] Optionally, the partition upper cover 303 includes: an upper body 3033, which is configured with a first opening 3036; in the case where the first assembly fitting portion 3031 is a snap-fit ​​structure, the first assembly fitting portion 3031 is formed by extending axially from the upper body 3033, or the first assembly fitting portion 3031 is a snap-fit ​​ring 3034 and is embedded in the upper body 3033. Figure 15 、 Figure 19 and Figure 20 shown.

[0109] The snap-fit ​​structure, extending axially from the upper body 3033, is tightly integrated with the main body, providing high structural strength and the ability to withstand the deformation stresses of repeated assembly and disassembly, extending its service life. The embedded snap ring 3034 allows the snap-fit ​​structure to be selected independently of the upper body 3033 (e.g., using a more elastic material), optimizing snap-fit ​​elasticity and resetting performance. It also facilitates the independent replacement of the snap ring 3034 if it becomes worn, reducing maintenance costs.

[0110] In some embodiments, the first assembly fitting portion 3031 extends axially from the upper main body 3033 to form a snap-fit ​​structure, wherein the side edge of the first assembly fitting portion 3031 is separately arranged from the upper main body 3033, which not only facilitates the deformation of the first assembly fitting portion 3031 to achieve the snap-fit ​​purpose, but also can avoid affecting the shape change of the upper main body 3033 when the first assembly fitting portion 3031 is deformed.

[0111] The split buckle design allows for independent buckle deformation, preventing the main structure from being affected by the clamping force and extending the buckle life. The axial extension structure provides a larger clamping stroke, ensuring a secure connection with the separated lower base 301.

[0112] In the case where the first assembly-fitting portion 3031 is a snap ring 3034 and is embedded in the upper body 3033, the first assembly-fitting portion 3031 (snap ring 3034) comprises not only a snap ring structure but also a button snap. The snap ring 3034 is embedded in the upper body 3033, and the sidewalls of the upper body 3033 are configured with a relief groove for the button snap to be embedded and installed. In this state, the button snap is separated from the upper body 3033, thereby avoiding being restricted by the upper body 3033 and thus affecting the snap connection.

[0113] Optionally, when the first assembly-fitting portion 3031 is a snap ring 3034, the partitioned upper cover 303 further includes an upper bottom cover 3035 embedded within the upper body 3033 and pressed against the snap ring 3034. The upper bottom cover 3035 is connected to the upper body 3033 via the upper bottom cover 3035, thereby securing the snap ring 3034 within the upper body 3033. This further strengthens the connection between the snap ring 3034 and the upper body 3033 and prevents the snap ring 3034 from falling off the upper body 3033. Similarly, the edge of the upper bottom cover 3035 is configured with a relief opening to allow the button buckle to pass through the relief opening of the upper bottom cover 3035 and snap into engagement with the partitioned lower base 301.

[0114] The upper bottom cover 3035 securely fastens the snap ring 3034 to the upper body 3033 through compression, preventing it from falling off during repeated engagement and enhancing structural stability. The connection (e.g., bonding or welding) between the bottom cover and the body creates a closed space, protecting the snap ring 3034 from external contaminants and ensuring uniform force distribution, extending its elastic life.

[0115] The upper bottom cover 3035 enhances the connection strength between the snap ring 3034 and the upper body 3033 to prevent the snap ring 3034 from falling off during long-term use; the avoidance design ensures that the button snap can be freely deformed and connected without affecting the operating feel, while keeping the outer surface of the partition component 30 smooth.

[0116] In some embodiments, the upper body 3033 and the upper bottom cover 3035 are made of plastic or metal. The snap ring 3034 is made of plastic and is annular, and can be embedded in the upper body 3033. The upper body 3033 and the upper bottom cover 3035 can be connected by bonding or welding. In actual use, the button buckle of the snap ring 3034 acts as an elastic body, and can be pressed to deform to achieve snap connection and removal with the separated lower base 301.

[0117] Optionally, the multi-channel sealing valve 302 is constructed with a second assembly portion 3021; ​​the lower base 301 is further constructed with a lower assembly fitting portion 3014 at the first end, and / or the upper cover 303 is constructed with an upper assembly fitting portion; wherein the second assembly portion 3021 cooperates with the lower assembly fitting portion 3014 and / or the upper assembly fitting portion to limit the circumferential rotation of the multi-channel sealing valve 302.

[0118] The multi-channel sealing valve 302 forms a circumferential limit structure through the second assembly portion 3021, the lower assembly fitting portion 3014, and / or the upper assembly fitting portion. This prevents the multi-channel sealing valve 302 from rotating due to the friction of instrument insertion and removal, ensuring that the second channel 3023 is always precisely aligned with the first channel 3015 and the first opening 3036, thus avoiding jamming or sealing failure during instrument insertion. The dual limit of the lower assembly fitting portion 3014 and / or the upper assembly fitting portion (for example, the multi-channel sealing valve 302 is simultaneously engaged with the partitioned lower base 301 and the partitioned upper cover 303) further enhances the stability of the multi-channel sealing valve 302, making it particularly suitable for high-frequency instrument operation scenarios.

[0119] For example, the second assembly part 3021 cooperates with the lower assembly cooperating part 3014 to limit the circumferential rotation of the multi-channel sealing valve 302. Alternatively, the second assembly part 3021 cooperates with the upper assembly cooperating part to limit the circumferential rotation of the multi-channel sealing valve 302. Alternatively, the second assembly part 3021 cooperates with both the upper assembly cooperating part and the lower assembly cooperating part 3014 to limit the circumferential rotation of the multi-channel sealing valve 302.

[0120] Alternatively, the second assembly part 3021 and the lower assembly cooperating part 3014 form a shaft hole structure, or the second assembly part 3021 cooperates with the upper assembly cooperating part to form a shaft hole structure, or the second assembly part 3021 and the lower assembly cooperating part 3014 form a protrusion and groove structure, or the second assembly part 3021 and the upper assembly cooperating part form a protrusion and groove structure, or the second assembly part 3021, the lower assembly cooperating part 3014 and the upper assembly cooperating part form a protrusion and groove structure.

[0121] The shaft hole structure is accurate in positioning and can limit both the circumferential rotation and the radial deviation, thereby ensuring the concentricity of the multi-channel sealing valve 302 and the lower base 301 and the upper cover 303, and ensuring the alignment accuracy of the channels.

[0122] The protrusion and groove structure is simple in structure and can provide reliable circumferential stop. In addition, in the case where the second assembly part 3021, the lower assembly cooperating part 3014 and the upper assembly cooperating part form a protrusion and groove structure, the protrusion and groove structure formed by the three parts together has a "up-down clamping" limiting effect, and the limiting strength is higher, so that the circumferential stability can be maintained even when the sealing valve is deviated by an axial force.

[0123] In some embodiments, the second assembly part 3021 and the lower assembly cooperating part 3014 are combined Figure 17 As shown, the second assembly part 3021 and the lower assembly cooperating part 3014 form a shaft hole structure, and the lower base 301 and the multi-channel sealing valve 302 are positioned and installed through the shaft hole structure. For example, the lower assembly cooperating part 3014 is a limiting column, and the second assembly part 3021 is a limiting hole. Alternatively, the lower assembly cooperating part 3014 is a limiting hole, and the second assembly part 3021 is a limiting column. The shaft hole positioning structure is simple and reliable, and the assembly can be quickly aligned through vision or touch during assembly, thereby improving the assembly efficiency and providing radial and axial limiting to ensure the stability of the sealing valve during the instrument insertion and extraction. Similarly, the shaft hole structure of the second assembly part 3021 and the upper assembly cooperating part can be referred to the above description.

[0124] In some embodiments, the second assembly portion 3021 can be configured as a stopper, with both the lower assembly mating portion 3014 and the upper assembly mating portion configured as stopper blocks. Either or both of the lower assembly mating portion 3014 and the upper assembly mating portion are embedded in the stopper of the second assembly portion 3021, thereby achieving circumferential positioning of the multi-channel sealing valve 302. This combined, convex structure creates a "top-and-bottom clamping" positioning effect, providing enhanced positioning strength and maintaining circumferential stability even when the sealing valve is deflected by axial forces.

[0125] In actual application, the installation angle and direction of the partition upper cover 303, the partition lower base 301 and the multi-channel sealing valve 302 can be determined by the axial hole structure, and the fixed connection between the partition upper cover 303 and the partition lower base 301 can be achieved by the rotating cover 3012.

[0126] Optionally, the end edge of the multi-channel sealing valve 302 overlaps the first end of the partition lower base 301, and a sealing element 3022 is provided between the outer peripheral surface of the side wall of the multi-channel sealing valve 302 and the inner annular surface of the first end of the partition lower base 301.

[0127] The overlapping ends of the multi-channel sealing valve 302 ensure axial positioning of the sealing valve, ensuring consistent installation depth and providing a foundation for alignment of the channels. A sealing element 3022 (e.g., an O-ring or elastic sealing ring) fills the gap between the sealing valve and the lower separating base 301, achieving a radial seal under the action of pneumoperitoneum pressure, preventing gas leakage and maintaining stable intra-abdominal pressure without affecting the replacement of the sealing valve.

[0128] The trocar provided in the present embodiment includes the partition assembly 30 provided in the above embodiment. The partition lower base 301 of the partition assembly 30 is inserted into the main body. The surgical instrument can be smoothly inserted into the partition assembly 30 without obstruction and installed into the main body along with the partition assembly 30.

[0129] Optionally, combined Figures 9 to 14 As shown, the main body also includes: a one-way valve 40, which is inserted into the turntable 20 and detachably connected to the turntable 20 for one-way gas blocking; wherein, the one-way valve 40 is arranged between the turntable 20 and the partition assembly 30, for sealing the channel of the partition assembly 30 in contact with it when the partition assembly 30 passes through the one-way valve 40.

[0130] The one-way valve 40 (such as a silicone rubber cross valve) achieves one-way air blocking under pneumoperitoneum pressure through a cross incision, ensuring stable air pressure in the abdominal cavity; the detachable design facilitates the replacement of worn parts during surgery, maintains the sealing performance of the puncture device, and adapts to the diameter requirements of different surgical instruments.

[0131] The valve body 401 is primarily made of silicone rubber, and its surface may be coated with a lubricating coating to ensure good self-lubrication. For example, the bottom of the valve body 401 has a cross-shaped cutout to provide a one-way air barrier. A raised groove 4011 is located on the outside for positioning during installation, and a raised sealing skirt 4012 is located inside to seal against the lower partition portion 301 of the partition assembly 30 after insertion. In actual clinical use, the one-way valve 40 (cross valve) is a replaceable component.

[0132] Optionally, the turntable 20 is constructed with a connecting portion 2015, and the one-way valve 40 includes: a valve body 401, which is inserted into the turntable 20, and a groove 4011 is constructed on the protruding edge, so that the top of the turntable 20 is embedded in the groove 4011 and fixed; a valve cover 402, which is an annular structure, is covered on the valve body 401, and is constructed with a connecting fitting portion 4021; wherein the connecting fitting portion 4021 is connected in cooperation with the connecting portion 2015, so that the one-way valve 40 and the turntable 20 are detachably connected.

[0133] In some embodiments, the connection portion 2015 of the turntable 20 is threaded, and the mating portion 4021 of the valve cover 402 is threaded. The valve cover 402 is threadedly connected to the top of the turntable 20 to secure the two. This allows the one-way valve 40 to rotate synchronously with the turntable 20, preventing friction between the partition assembly 30 and the one-way valve 40 and resistance when the partition assembly 30 rotates relative to the main body, thereby preventing twisting and deformation of the instrument shaft.

[0134] In some embodiments, the valve body 401 can be assembled and disassembled by rotating the valve cover 402. The valve cover 402 is annular in shape, with threads on the inner wall that can match the threads on the top of the ring cover 201 of the turntable 20. The outer wall is grooved to increase friction when tightened by hand. During actual installation, the protruding groove 4011 of the valve body 401 is inserted into the corresponding structure of the ring cover 201 of the turntable 20 to achieve positioning, and then the valve cover 402 and the ring cover 201 of the turntable 20 are tightened. The opposite is true when disassembling. Figure 11 and Figure 12 shown.

[0135] In some embodiments, the edge of the valve cover 402 is configured with a U-shaped snap fastener (connecting fitting portion 4021), and the outer edge of the snap fastener is configured with a protrusion, and the second ring portion 2012 of the ring cover 201 is configured with a slot 2013 (connecting portion 2015). The snap fastener of the valve cover 402 is inserted into the slot 2013 of the second ring portion 2012 from top to bottom, and the protrusion abuts against the lower surface of the second ring portion 2012 to achieve the fixation of the valve cover 402 relative to the turntable 20. Figure 13 and Figure 14 shown.

[0136] The threaded connection provides high-strength fixation. The U-shaped snap connection (e.g., a snap with a protrusion snapped to the slot 2013 of the turntable 20) enables quick manual disassembly and assembly, making it easier for medical staff to replace the one-way valve 40 without the aid of tools, thereby improving surgical efficiency.

[0137] In some embodiments, the valve cover 402 is annular, with U-shaped spring buckles on both sides to connect and disconnect with the turntable 20. At the same time, the side of the valve cover 402 that contacts the valve body 401 is set as an inclined surface to achieve a seal between the valve cover 402 and the valve body 401.

[0138] The above description and accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims, and the above embodiments should be regarded as exemplary and non-restrictive.

Claims

1. A partition assembly, characterized in that: include: The lower base is separated, and the first end portion is a hollow cavity structure; a multi-channel sealing valve embedded in the hollow cavity separating the first end portion of the lower base; The partition upper cover is detachably connected to the first end of the partition lower base and is covered with a multi-channel sealing valve; The partitioned lower base is directly connected to the partitioned upper cover, and one or both of the partitioned lower base and the partitioned upper cover are positioned and connected to the multi-channel sealing valve.

2. The partition assembly according to claim 1, characterized in that The partition lower base is configured with a first assembly portion at the first end portion, and the partition upper cover is configured with a first assembly matching portion. The first assembly portion and the first assembly matching portion cooperate to enable the partition lower base and the partition upper cover to be directly and detachably connected.

3. The partition assembly according to claim 2, characterized in that The first assembly portion is a slot structure, and the first assembly matching portion is a snap structure; or the first assembly portion is a snap structure, and the first assembly matching portion is a slot structure; the first assembly portion and the first assembly matching portion are snap-fitted via the snap structure and the slot structure, so that the partitioned lower base and the partitioned upper cover are directly and detachably connected.

4. The partition assembly according to claim 2, characterized in that The first assembly part is a protrusion structure, and the first assembly matching part is a spiral groove structure; or the first assembly part is a spiral groove structure, and the first assembly matching part is a protrusion structure; the first assembly part and the first assembly matching part slide along the spiral groove structure through the protrusion structure to form a snap-on screw structure, so that the separated lower base and the separated upper cover are directly and detachably connected.

5. The partition assembly according to claim 2, characterized in that The partitioned upper cover comprises: upper body; In the case where the first assembly fitting portion is a snap-fit ​​structure, the first assembly fitting portion is formed by extending axially from the upper body, or the first assembly fitting portion is a snap-fit ​​ring and is embedded in the upper body.

6. The partition assembly according to claim 5, characterized in that In the case where the first assembly fitting portion is a snap ring, the separating upper cover body further comprises: The upper bottom cover is embedded in the upper main body and pressed on the buckle ring to be connected with the upper main body through the upper bottom cover so that the buckle ring is fixed in the upper main body.

7. The partition assembly according to claim 1, characterized in that The multi-channel sealing valve is configured with a second assembly portion; The lower base body is further configured with a lower assembly fitting portion at the first end portion, and / or the upper cover body is further configured with an upper assembly fitting portion; The second assembly portion cooperates with the lower assembly fitting portion and / or the upper assembly fitting portion to limit the circumferential rotation of the multi-channel sealing valve.

8. The partition assembly according to claim 7, characterized in that The second assembly part and the lower assembly fitting part constitute an axial hole structure, or the second assembly part and the upper assembly fitting part constitute an axial hole structure, or the second assembly part and the lower assembly fitting part constitute a convex structure, or the second assembly part and the upper assembly fitting part constitute a convex structure, or the second assembly part, the lower assembly fitting part and the upper assembly fitting part constitute a convex structure.

9. The partition assembly according to any one of claims 1 to 8, characterized in that The end edge of the multi-channel sealing valve overlaps the first end of the partition lower base, and a sealing element is provided between the outer peripheral surface of the multi-channel sealing valve side wall and the inner annular surface of the first end of the partition lower base.

10. A trocar, characterized in that: Comprising the partition assembly according to any one of claims 1 to 9.

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