Surgical instrument quick release mechanism and surgical instrument

Abstract

The utility model provides a kind of surgical instruments quick release mechanism and surgical instruments, it is related to medical instrument technical field.The surgical instruments quick release mechanism includes: catheter, transmission part, handle joint, transmission joint and locking piece;Transmission part is movably cooperated in catheter;Catheter is detachably connected with handle joint, transmission part is detachably connected with transmission joint;Locking piece is connected in handle joint and transmission joint, and transmission joint is locked relative to catheter, transmission part is locked relative to transmission joint.It can realize to catheter and transmission part quick disassembly and installation, and then catheter, transmission part and working mechanism can be together as consumable instrument or instrument that can be sterilized separately, handle joint, transmission joint, locking piece and control mechanism can be recycled, it is favorable to realize the sustainability application of surgical instruments.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a quick-release mechanism for surgical instruments and a surgical instrument. Background Technology

[0002] Surgical instruments typically have their working mechanisms inserted into the lesion site via a catheter through the surgical incision, and are driven by a transmission assembly along the catheter to perform the required intraoperative procedures. After surgery, the working mechanisms and catheters may be contaminated with blood and other bodily fluids, requiring thorough cleaning and strict sterilization; in some cases, the entire surgical instrument may even need to be disposed of to render it harmless. This process not only increases the cost of using surgical instruments but also hinders their recycling and sustainable application. Utility Model Content

[0003] The purpose of this invention is to provide a quick-release mechanism for surgical instruments and surgical instruments to alleviate the technical problem that surgical instruments are difficult to recycle in the prior art.

[0004] In the first aspect, the quick-release mechanism for surgical instruments provided by this utility model includes: a catheter, a transmission component, a handle connector, a transmission connector, and a locking component;

[0005] The transmission component is movably fitted inside the conduit;

[0006] The conduit is detachably connected to the handle connector, and the transmission component is detachably connected to the transmission connector;

[0007] The locking element is connected to the handle connector and the transmission connector, and locks the transmission connector relative to the conduit, and the transmission element relative to the transmission connector.

[0008] In conjunction with the first aspect, the present invention provides a first possible implementation of the first aspect, wherein the conduit is provided with a first slider that protrudes radially;

[0009] The handle connector is provided with a first axial groove and a first limiting groove communicating with the first axial groove. The first limiting groove extends along the circumference of the guide tube and is adapted to the first slider.

[0010] The first slider is inserted into the first axial groove, and the first slider is engaged with the first limiting groove by rotating the guide tube;

[0011] The locking member has a first limiting protrusion that is movably inserted into the first axial sliding groove. In the locked state, the first slider is limited by the first limiting protrusion within the first limiting groove.

[0012] In conjunction with the first aspect, this utility model provides a second possible implementation of the first aspect, wherein the transmission member is provided with a second slider that protrudes radially;

[0013] The transmission joint is provided with a second axial groove and a second limiting groove that communicates with the second axial groove. The second limiting groove extends circumferentially along the transmission component and is adapted to the second slider.

[0014] The second slider is inserted into the second axial groove, and the second slider is engaged with the second limiting groove by rotating the transmission component;

[0015] The locking member has a second limiting protrusion that is movably inserted into the second axial sliding groove. In the locked state, the second slider is limited by the second limiting protrusion within the second limiting groove.

[0016] In conjunction with the first aspect, this utility model provides a third possible implementation of the first aspect, wherein the locking member includes: a knob and an elastic member connecting the knob;

[0017] The knob slides axially into the handle connector and the transmission connector;

[0018] The elastic element has a tendency to cause the knob to slide axially from the unlocked state to the locked state.

[0019] In conjunction with the first aspect, this utility model provides a fourth possible implementation of the first aspect, wherein the handle connector includes: a sliding frame and a connector end cap;

[0020] The transmission joint is slidably fitted to the sliding frame along the axial direction, and the transmission joint is provided with a circumferential limiting part that protrudes radially.

[0021] The connector end cap is provided with a slot adapted to the circumferential limiting part and a positioning part adapted to the sliding frame. The connector end cap is connected to the sliding frame, and the circumferential limiting part slides in the slot along the axial direction of the connector end cap.

[0022] Secondly, the surgical instrument provided by this utility model includes: a working mechanism, a control mechanism, and a quick-release mechanism for the surgical instrument as described in the first aspect.

[0023] The working mechanism is installed at the distal end of the conduit, and the working mechanism is connected to the transmission component in a transmission manner;

[0024] The handle connector and the transmission connector are connected to the control mechanism.

[0025] In conjunction with the second aspect, the present invention provides a first possible implementation of the second aspect, wherein the transmission joint is axially slidably fitted to the handle joint, and the transmission joint is circumferentially positioned relative to the handle joint;

[0026] The locking element is axially slidably fitted to the handle connector, and the locking element and / or the handle connector are rotatably connected to the control mechanism.

[0027] In conjunction with the second aspect, this utility model provides a second possible implementation of the second aspect, wherein the control mechanism includes: a control handle and a first drive assembly mounted on the control handle, the handle connector is connected to the control handle, and the first drive assembly is connected to the transmission connector.

[0028] In conjunction with the second possible implementation of the second aspect, the present invention provides a third possible implementation of the second aspect, wherein the first driving component includes: a mounting bracket, a sliding member, and a first driving member;

[0029] The sliding member is slidably fitted onto the mounting bracket, and the sliding member is drive-connected to the first driving member;

[0030] The handle connector is mounted on the mounting bracket, and the transmission connector is connected to the sliding member.

[0031] In conjunction with the second possible implementation of the second aspect, the present invention provides a fourth possible implementation of the second aspect, wherein the control mechanism further includes a second drive assembly and a transmission shaft connected to the control handle;

[0032] The drive shaft passes through the drive joint and the drive component, with the distal end of the drive shaft connected to the working mechanism and the proximal end connected to the second drive assembly.

[0033] The present invention provides the following beneficial effects: by using a transmission component that is movably fitted inside the catheter, the catheter and the handle connector are detachably connected, the transmission component and the transmission joint are detachably connected, and a locking component is connected to the handle connector and the transmission joint, thereby locking the transmission joint relative to the catheter and the transmission component relative to the transmission joint. This allows for quick disassembly and installation of the catheter and the transmission component. Furthermore, the catheter, the transmission component, and the working mechanism can be used together as consumable instruments or instruments that can be sterilized separately. The handle connector, the transmission joint, the locking component, and the control mechanism can all be recycled, which is beneficial for the sustainable use of surgical instruments.

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 A cross-sectional view of the quick-release mechanism and control mechanism for surgical instruments provided in an embodiment of this utility model;

[0037] Figure 2 A partially enlarged schematic diagram of the catheter, transmission component, handle connector, and transmission joint of the quick-release mechanism for surgical instruments provided in this embodiment of the present utility model;

[0038] Figure 3 A cross-sectional view of the locking component of the quick-release mechanism for surgical instruments provided in an embodiment of this utility model;

[0039] Figure 4 An exploded view of the handle connector and transmission connector of the quick-release mechanism for surgical instruments provided in this embodiment of the utility model;

[0040] Figure 5 A schematic diagram of the connector end cap of the quick-release mechanism for surgical instruments provided in an embodiment of this utility model;

[0041] Figure 6 A schematic diagram of the conduit, transmission component, and working mechanism of the quick-release mechanism for surgical instruments provided in this embodiment of the utility model;

[0042] Figure 7 This is a partial structural schematic diagram of a surgical instrument provided in an embodiment of the present utility model;

[0043] Figure 8 This is a partial structural schematic diagram of another surgical instrument provided in an embodiment of the present utility model.

[0044] Icons: 100-Conduit; 101-First slider; 200-Transmission component; 201-Second slider; 300-Handle connector; 301-First axial groove; 302-First limiting groove; 310-Sliding frame; 320-Connector end cap; 321-Groove; 322-Positioning part; 400-Transmission connector; 401-Second axial groove; 402-Second limiting groove; 403-Circumferential limiting part; 500-Locking component; 501-First limiting protrusion; 502-Second limiting protrusion; 510-Knob; 600-Working mechanism; 610-Pliers seat; 620-Pliers head; 700-Control mechanism; 710-Control handle; 720-First drive assembly; 721-Mounting bracket; 722-Slider; 723-First drive component; 730-Second drive assembly; 740-Transmission shaft. Detailed Implementation

[0045] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 on this utility model. Furthermore, the terms "first," "second," and "third" are only used to describe differences in name and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] like Figure 1 , Figure 2 , Figure 3, Figure 6 , Figure 7 and Figure 8 As shown, the quick-release mechanism for surgical instruments provided in this embodiment of the present invention includes: a catheter 100, a transmission component 200, a handle connector 300, a transmission connector 400, and a locking component 500; the transmission component 200 is movably fitted within the catheter 100; the catheter 100 is detachably connected to the handle connector 300, and the transmission component 200 is detachably connected to the transmission connector 400; the locking component 500 is connected to the handle connector 300 and the transmission connector 400, and locks the transmission connector 400 relative to the catheter 100 and the transmission component 200 relative to the transmission connector 400.

[0049] The catheter 100 serves as a support for the working mechanism 600 as it is inserted into the lesion through the surgical incision. The transmission component 200 is positioned along the catheter 100 and can be driven by the control mechanism 700, rotating or sliding relative to the catheter 100, thereby driving the working mechanism 600 to perform corresponding operations on the lesion. With the catheter 100 and handle connector 300 detachably connected, and the transmission component 200 and transmission connector 400 detachably connected, quick disassembly and installation can be achieved by unlocking and locking the locking component 500. The catheter 100, transmission component 200, and working mechanism 600 can be used together as consumable instruments or sterilized together. The handle connector 300, transmission connector 400, locking component 500, and control mechanism 700 can be used together as reusable instruments, enabling the sustainable use of most instruments and reducing the cost of surgical instruments.

[0050] In an optional embodiment, the locking member 500 can be connected to the handle connector 300 or the transmission connector 400 by means of snap-fit ​​or thread. When the conduit 100 and the handle connector 300 are fastened together by the locking member 500, the conduit 100 and the handle connector 300 are locked relative to each other. When the transmission member 200 and the transmission connector 400 are fastened together by the locking member 500, the transmission member 200 and the transmission connector 400 are locked relative to each other.

[0051] See Figure 1 , Figure 2 , Figure 3 and Figure 6In this embodiment of the present invention, the conduit 100 is provided with a first slider 101 that protrudes radially; the handle connector 300 is provided with a first axial groove 301 and a first limiting groove 302 that communicates with the first axial groove 301. The first limiting groove 302 extends circumferentially along the conduit 100 and is adapted to the first slider 101; the first slider 101 is inserted into the first axial groove 301 and is engaged with the first limiting groove 302 by rotating the conduit 100; the locking member 500 has a first limiting protrusion 501 that is movably inserted into the first axial groove 301. In the locked state, the first slider 101 is limited by the first limiting protrusion 501 in the first limiting groove 302.

[0052] When the conduit 100 needs to be disassembled or assembled, the locking member 500 is slidable axially to misalign the first limiting protrusion 501 with the first limiting groove 302. At this time, the first slider 101 can slide from the first axial groove 301 into the first limiting groove 302, or from the first limiting groove 302 into the first axial groove 301. When the first slider 101 is engaged with the first axial groove 301, the conduit 100 can be inserted and removed along the axial direction of the handle connector 300. When the first slider 101 is engaged with the first limiting groove 302, the reset locking member 500 prevents the first slider 101 from dislodging from the first limiting groove 302 through the first limiting protrusion 501, thereby locking the conduit 100 relative to the handle connector 300.

[0053] Furthermore, the transmission member 200 is provided with a second slider 201 that protrudes radially; the transmission joint 400 is provided with a second axial groove 401 and a second limiting groove 402 that communicates with the second axial groove 401. The second limiting groove 402 extends circumferentially along the transmission member 200 and is adapted to the second slider 201; the second slider 201 is inserted into the second axial groove 401 and is engaged with the second limiting groove 402 by rotating the transmission member 200; the locking member 500 has a second limiting protrusion 502 that is movably inserted into the second axial groove 401. In the locked state, the second slider 201 is limited by the second limiting protrusion 502 within the second limiting groove 402.

[0054] Specifically, when the first limiting protrusion 501 is misaligned with the first axial groove 301, the second limiting protrusion 502 is also misaligned with the second limiting groove 402. At this time, the operating guide tube 100 and the transmission component 200 rotate together, causing the first limiting protrusion 501 to slide from the first limiting groove 302 into the first axial groove 301, and the second limiting protrusion 502 to slide from the second limiting groove 402 into the second axial groove 401. Then, by pulling the guide tube 100 and the transmission component 200 axially, the guide tube 100 and the transmission component 200 can be disassembled together. Conversely, the guide tube 100 and the transmission component 200 can be installed simultaneously. After the guide tube 100 and the transmission component 200 are installed in place, the locking component 500 resets to the locked state. While the first limiting protrusion 501 blocks the first limiting groove 302, the second limiting protrusion 502 also blocks the second limiting groove 402, thereby locking the guide tube 100 and the transmission component 200 together.

[0055] Additionally, it should be noted that the first limiting protrusion 501 is slidably engaged with the first axial groove 301, and the second limiting protrusion 502 is slidably engaged with the second axial groove 401, which can realize the relative circumferential fixation of the conduit 100, the transmission component 200, and the locking component 500. On the one hand, the locking component 500 can switch between the locked and unlocked states by sliding axially, and on the other hand, the rotation of the conduit 100 and the transmission component 200 can be realized by turning the locking component 500.

[0056] like Figure 1 , Figure 7 and Figure 8 As shown, the locking element 500 includes a knob 510 and an elastic element connecting the knob 510; the knob 510 is axially slidably fitted into the handle connector 300 and the transmission connector 400; the elastic element has a tendency to cause the knob 510 to slide axially from the unlocked state to the locked state. The elastic element is a spring or a sheet-like device, used to drive the knob 510 to slide axially from the unlocked state to the locked state along the handle connector 300. When the knob 510 is turned, the guide tube 100, the transmission element 200, and the working mechanism 600 can rotate together.

[0057] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the handle connector 300 includes a sliding frame 310 and a connector end cover 320; the transmission connector 400 is axially slidably fitted to the sliding frame 310, and the transmission connector 400 is provided with a radially protruding circumferential limiting part 403; the connector end cover 320 is provided with a slot 321 adapted to the circumferential limiting part 403 and a positioning part 322 adapted to the sliding frame 310. The connector end cover 320 is connected to the sliding frame 310, and the circumferential limiting part 403 is axially slidably fitted to the slot 321 along the axial direction of the connector end cover 320. On the one hand, the transmission connector 400 can slide axially relative to the handle connector 300, and on the other hand, the transmission connector 400 can be circumferentially positioned relative to the handle connector 300. At this time, the control mechanism 700 controls the working mechanism 600 by driving the transmission connector 400 to slide back and forth axially relative to the handle connector 300 and then transmitting through the transmission member 200.

[0058] like Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the surgical instrument provided in this embodiment of the present invention includes: a working mechanism 600, a control mechanism 700, and a quick-release mechanism for the surgical instrument described in the above embodiments; the working mechanism 600 is installed at the distal end of the catheter 100, and the working mechanism 600 is connected to the transmission component 200; the handle connector 300 and the transmission connector 400 are connected to the control mechanism 700.

[0059] In this embodiment, the position close to the control mechanism 700 is designated as the proximal end of the device, and the position far from the control mechanism 700 is designated as the distal end of the device. The working mechanism 600 may include surgical execution devices such as tool forceps and suture devices. It is connected to the working mechanism 600 by the transmission component 200, which can realize the angle adjustment of the working mechanism 600 or the corresponding execution action drive.

[0060] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment of the present invention, the transmission joint 400 is axially slidably fitted to the handle joint 300, and the transmission joint 400 is circumferentially positioned relative to the handle joint 300; the locking member 500 is axially slidably fitted to the handle joint 300, and the locking member 500 and / or the handle joint 300 are rotatably connected to the control mechanism 700.

[0061] The locking element 500 or the handle connector 300 is rotatably connected to the control mechanism 700, or both the locking element 500 and the handle connector 300 can be rotatably connected to the control mechanism 700. The control mechanism 700 can use a linkage push-pull or other driving method to drive the transmission connector 400 to reciprocate axially relative to the handle connector 300. In addition, turning the locking element 500 or the handle connector 300 will also drive the transmission connector 400, the transmission element 200, the conduit 100 and the working mechanism 600 to rotate together.

[0062] like Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, in an optional embodiment, the working mechanism 600 includes: a clamp seat 610 and a clamp head 620 mounted on the clamp seat 610. The clamp seat 610 is hinged to the conduit 100 via a first hinge shaft. The distal end of the transmission member 200 is hinged to the clamp seat 610 via a second hinge shaft. Alternatively, the distal end of the transmission member 200 is provided with a sliding groove inclined relative to the axis, and a second hinge shaft connecting the clamp seat 610 is slidably fitted in the sliding groove. The first hinge shaft and the second hinge shaft are arranged parallel to each other. By pushing and pulling the transmission member 200 along the axial direction, the clamp seat 610 can be driven to swing relative to the conduit 100, thereby adjusting the jaw orientation of the clamp head 620.

[0063] like Figure 7 and Figure 8 As shown, the control mechanism 700 includes: a control handle 710 and a first drive assembly 720 mounted on the control handle 710, a handle connector 300 connected to the control handle 710, and the first drive assembly 720 connected to the transmission connector 400.

[0064] The first drive assembly 720 can drive the transmission joint 400 to reciprocate along the axial direction of the handle joint 300 by sliding relative to the control handle 710. In addition, the first drive assembly 720 can also be driven manually or electrically to rotate, and converted into linear motion through gear and rack transmission, thereby driving the transmission joint 400 to reciprocate along the axial direction of the handle joint 300.

[0065] In this embodiment, the first drive assembly 720 includes: a mounting bracket 721, a sliding member 722, and a first drive member 723; the sliding member 722 is slidably fitted onto the mounting bracket 721, and the sliding member 722 is driveably connected to the first drive member 723; the handle connector 300 is mounted on the mounting bracket 721, and the transmission connector 400 is connected to the sliding member 722. The first drive member 723 can drive the sliding member 722 to reciprocate relative to the mounting bracket 721 using a crank mechanism or a rack and pinion mechanism, etc. The sliding member 722 and the transmission connector 400 can be directly connected or connected via a pipe to transmit axial pushing and pulling power. Furthermore, the handle connector 300 is rotatably connected to the mounting bracket 721 about the axis of the transmission connector 400. The guide tube 100, the transmission member 200, the handle connector 300, the transmission connector 400, and the locking member 500 can rotate synchronously relative to the control mechanism 700, thereby adjusting the jaw orientation of the working mechanism 600.

[0066] In an optional embodiment, the control mechanism 700 further includes a second drive assembly 730 and a drive shaft 740 connected to the control handle 710; the drive shaft 740 passes through the transmission joint 400 and the transmission member 200, and the distal end of the drive shaft 740 is connected to the working mechanism 600 and the proximal end is connected to the second drive assembly 730.

[0067] The working mechanism 600 can be configured as a surgical execution device such as a forceps or a suture device. The drive shaft 740 is used to transmit push and pull power and drive the surgical execution device such as the forceps or suture device to complete corresponding actions. Alternatively, the drive shaft 740 can be used to pull the surgical execution device and cause it to perform corresponding actions. The corresponding reset drive is then achieved by a reset spring located within the surgical execution device. The second drive assembly 730 may include a trigger movably connected to the control handle 710 and a pivot member hinged to the trigger. The pivot member is connected to the proximal end of the drive shaft 740. When the trigger is triggered, the pivot member rotates relative to the shaft on the control handle 710 and exerts a push and pull action on the drive shaft 740. The distal end of the drive shaft 740 is connected to the working mechanism 600 to complete the corresponding instrument operation. The drive form of the working mechanism 600 can be found in existing minimally invasive surgical instruments such as suture devices and clamps, and will not be described in detail here.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick-release mechanism for surgical instruments, characterized in that, include: The conduit (100), the transmission component (200), the handle connector (300), the transmission connector (400), and the locking component (500); The transmission component (200) is movably fitted within the conduit (100); The conduit (100) is detachably connected to the handle connector (300), and the transmission component (200) is detachably connected to the transmission connector (400); The locking element (500) is connected to the handle connector (300) and the transmission connector (400), and locks the transmission connector (400) relative to the conduit (100), and the transmission element (200) is locked relative to the transmission connector (400).

2. The quick-release mechanism for surgical instruments according to claim 1, characterized in that, The conduit (100) is provided with a first slider (101) that protrudes radially. The handle connector (300) is provided with a first axial groove (301) and a first limiting groove (302) communicating with the first axial groove (301). The first limiting groove (302) extends circumferentially along the guide tube (100) and is adapted to the first slider (101). The first slider (101) is inserted into the first axial groove (301), and the first slider (101) is engaged with the first limiting groove (302) by rotating the guide tube (100); The locking member (500) has a first limiting protrusion (501) that is movably inserted into the first axial slide groove (301). In the locked state, the first slider (101) is limited by the first limiting protrusion (501) in the first limiting groove (302).

3. The quick-release mechanism for surgical instruments according to claim 1, characterized in that, The transmission component (200) is provided with a second slider (201) that protrudes radially. The transmission joint (400) is provided with a second axial groove (401) and a second limiting groove (402) communicating with the second axial groove (401). The second limiting groove (402) extends circumferentially along the transmission member (200) and is adapted to the second slider (201). The second slider (201) is inserted into the second axial groove (401), and the second slider (201) is engaged with the second limiting groove (402) by rotating the transmission member (200); The locking member (500) has a second limiting protrusion (502) that is movably inserted into the second axial groove (401). In the locked state, the second slider (201) is limited by the second limiting protrusion (502) in the second limiting groove (402).

4. The quick-release mechanism for surgical instruments according to any one of claims 1-3, characterized in that, The locking element (500) includes: a knob (510) and an elastic element connecting the knob (510); The knob (510) is axially slidably fitted to the handle connector (300) and the transmission connector (400). The elastic element has a tendency to slide the knob (510) from the unlocked state to the locked state along the axial direction.

5. The quick-release mechanism for surgical instruments according to claim 1, characterized in that, The handle connector (300) includes: a sliding bracket (310) and a connector end cap (320). The transmission joint (400) is axially slidably fitted to the sliding frame (310), and the transmission joint (400) is provided with a radially protruding circumferential limiting part (403). The connector end cap (320) is provided with a slot (321) adapted to the circumferential limiting part (403) and a positioning part (322) adapted to the sliding frame (310). The connector end cap (320) is connected to the sliding frame (310), and the circumferential limiting part (403) slides in the slot (321) along the axial direction of the connector end cap (320).

6. A surgical instrument, characterized in that, include: The working mechanism (600), the control mechanism (700), and the quick-release mechanism for surgical instruments as described in any one of claims 1-5; The working mechanism (600) is installed at the distal end of the conduit (100), and the working mechanism (600) is connected to the transmission component (200) in a transmission connection. The handle connector (300) and the transmission connector (400) are connected to the control mechanism (700).

7. The surgical instrument according to claim 6, characterized in that, The transmission joint (400) is axially slidably fitted to the handle joint (300), and the transmission joint (400) is circumferentially positioned relative to the handle joint (300). The locking element (500) is axially slidably fitted to the handle connector (300), and the locking element (500) and / or the handle connector (300) are rotatably connected to the control mechanism (700).

8. The surgical instrument according to claim 6, characterized in that, The control mechanism (700) includes: a control handle (710) and a first drive assembly (720) mounted on the control handle (710), the handle connector (300) is connected to the control handle (710), and the first drive assembly (720) is connected to the transmission connector (400).

9. The surgical instrument according to claim 8, characterized in that, The first drive assembly (720) includes: a mounting bracket (721), a slider (722), and a first drive member (723); The sliding member (722) is slidably engaged with the mounting bracket (721), and the sliding member (722) is connected to the first driving member (723) in a transmission manner; The handle connector (300) is mounted on the mounting bracket (721), and the transmission connector (400) is connected to the sliding member (722).

10. The surgical instrument according to claim 8, characterized in that, The control mechanism (700) also includes a second drive assembly (730) and a drive shaft (740) connected to the control handle (710). The drive shaft (740) passes through the drive joint (400) and the drive member (200), and the distal end of the drive shaft (740) is connected to the working mechanism (600), and the proximal end is connected to the second drive assembly (730).

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