A surgical instrument and its guiding component and disassembly tool

Abstract

A surgical instrument, its guiding assembly and disassembly tool. The guiding assembly includes a body part and a movable limiting part. The body part includes a joint part and a guiding part. The movable limiting part includes a sliding clamping part. The movable limiting part is used to switch the joint part and the end of the actuator assembly between a separated state and a joint state. The operator can meet the surgical requirements only by a surgical instrument with a guiding assembly, without the need to open another instrument, which is beneficial to reducing medical costs and expenses. When the movable limiting part is subjected to a force along the joint direction, the movable limiting part undergoes non-flexible deformation under the abutment of the sliding guiding part, and releases the non-flexible deformation when sliding to the joint position to be clamped with the clamping structure of the actuator assembly; the joint part and the end of the actuator assembly can be clamped in a sliding and elastic manner, that is, one-step clamping can be achieved, and the clamping efficiency of the joint part and the end of the actuator assembly is high and the operation is simple.

Description

[0001] Citation of Related Applications

[0002] This application claims priority based on Chinese Patent Application No. 202310651971.1, filed on June 2, 2023, and the entire disclosure thereof is incorporated herein by reference. Technical Field

[0003] The present invention relates to the technical field of medical devices, and particularly to a surgical instrument, its guiding assembly, and a disassembly tool. Background Art

[0004] Currently, minimally invasive surgery occupies an important position in surgical operations, and staplers are commonly used surgical instruments in minimally invasive surgery. Existing staplers include an operating handle and an end effector. The operating handle has a fixed handle for the operator to hold, and the operating handle is connected to the end effector through an elongate body. The working principle of the stapler is to clamp the jaws of the end effector at a specific position near the lesion site, cut the tissue through the cutting knife of the end effector, and suture through the staple cartridge assembly of the end effector while cutting.

[0005] However, in actual surgical scenarios, some surgical sites are relatively special, and it is difficult for the end of the actuator assembly to reach around the tissue to be cut, such as blood vessels that are difficult to reach. At this time, ordinary staplers cannot meet the surgical requirements, and the operator often has to open another instrument dedicated to vascular anastomosis to meet clinical use, which greatly increases the medical cost and expenses. Therefore, there is an urgent need for a surgical instrument that can anastomose normal tissues and is convenient to enter a narrower space. Summary of the Invention

[0006] The main object of the present invention is to provide a guiding assembly that can be detachably connected to the end of the actuator assembly of a surgical instrument so that the end of the actuator assembly of the surgical instrument can enter a narrower space; a surgical instrument with such a guiding assembly, and a disassembly tool for detaching the guiding assembly from the end of the actuator assembly.

[0007] In one embodiment, a guiding assembly for a surgical instrument is provided, comprising:

[0008] A body member, including a joint portion and a guiding portion, the joint portion being used to engage with the end of the actuator assembly of the surgical instrument, and the guiding portion being provided on the joint portion;

[0009] A movable limiting member, the movable limiting member being movably connected to the joint portion or the guiding portion, the movable limiting member including a sliding clamping portion, and the movable limiting member being used to switch the joint portion between a separated state and an engaged state with the end of the actuator assembly;

[0010] When the joint portion is joined to the end of the actuator assembly, the sliding clamping portion is in sliding contact with the sliding guiding portion of the actuator assembly to slide along the guiding direction of the sliding guiding portion; during the sliding process, the movable limiting member undergoes non-flexible deformation under the abutment of the sliding guiding portion, and releases the non-flexible deformation when sliding to the joining position to be clamped with the clamping structure of the actuator assembly, and the guiding direction of the sliding guiding portion intersects with the joining direction of the actuator assembly.

[0011] In one embodiment, the sliding clamping portion protrudes from the movable limiting member, the sliding clamping portion has a first guiding surface, and the sliding clamping portion is in sliding contact with the sliding guiding portion of the actuator assembly through the first guiding surface, and the first guiding surface is parallel to the guiding direction.

[0012] In one embodiment, the joint portion and / or the guiding portion are provided with a first limiting portion, the first limiting portion is arranged on the movement path of the movable limiting member, and when the sliding clamping portion slides obliquely along the guiding direction, the first limiting portion presses the movable limiting member and causes the movable limiting member to undergo the non-flexible deformation.

[0013] In one embodiment, the first limiting portion has an inclined second guiding surface, and the movable limiting member slides along the second guiding surface to generate the non-flexible deformation.

[0014] In one embodiment, the first limiting portions are respectively provided on both sides of the body member, and the first limiting portions on both sides of the body member are used to jointly press the movable limiting member to undergo the non-flexible deformation of outward expansion and energy storage.

[0015] In one embodiment, the first limiting portion is used to press the movable limiting member to undergo the non-flexible deformation of outward expansion and energy storage; when the sliding clamping portion slides to the joining position, the movable limiting member contracts to release the non-flexible deformation of outward expansion and energy storage.

[0016] In one embodiment, the movable limiting member includes a first cantilever, a second cantilever and a connecting arm. One end of the first cantilever is movably connected to one side of the body member, the other end of the first cantilever is connected to the connecting arm, one end of the second cantilever is movably connected to the other side of the body member, the other end of the second cantilever is connected to the connecting arm, and the sliding clamping portion is arranged on the connecting arm.

[0017] In one embodiment, the joint portion and / or the guiding portion are provided with a second limiting portion, and the second limiting portion is used to limit the movement stroke of the movable limiting member.

[0018] In one embodiment, the joint portion and / or the guiding portion are provided with an activity groove, one end of the activity limiting member is movably connected to the activity groove, and a second limiting portion is formed by extending one side edge of the activity groove.

[0019] In one embodiment, the length of the guiding portion along the joint direction is 6 - 9 cm;

[0020] And / or, the guiding portion is a bent structure, and the ratio of the length of the guiding portion along the joint direction to the height formed by bending is 0.8 - 2;

[0021] And / or, one end of the guiding portion away from the joint portion is a tip structure, and the included angle formed by the intersection of the extension planes of the two sides of the tip structure is 10 - 25°.

[0022] In one embodiment, the length of the guiding portion along the joint direction is 7 - 8 cm;

[0023] And / or, the guiding portion is a bent structure, and the ratio of the length of the guiding portion along the joint direction to the height formed by bending is 1 - 1.5;

[0024] And / or, one end of the guiding portion away from the joint portion is a tip structure, and the included angle formed by the intersection of the extension planes of the two sides of the tip structure is 15 - 20°.

[0025] In one embodiment, the joint portion has a guiding channel, and when the joint portion is in a joint state with the end of the actuator assembly, the guiding channel is communicated with the tool - passing groove of the actuator assembly.

[0026] In one embodiment, the guiding channel includes a guiding groove.

[0027] In one embodiment, one end of the joint portion away from the guiding portion has two spaced - apart joint arms, the joint arms are used for inserting into the insertion slots of the actuator assembly, and the space between the two joint arms forms the guiding channel;

[0028] And / or, the joint portion is a C - shaped structure or an H - shaped structure;

[0029] And / or, the joint portion is further provided with a clamping interface, and when the joint portion is in a joint state with the end of the actuator assembly, a part of the sliding clamping portion passes through the clamping structure and is located in the clamping interface.

[0030] In one embodiment, a guiding assembly for a surgical instrument is provided, including:

[0031] A body member, including a joint portion and a guiding portion, the joint portion is used for joining with the end of the actuator assembly, and the guiding portion is arranged on the joint portion;

[0032] An active limiting member, the active limiting member is movably connected to the engaging portion or the guiding portion, the active limiting member is provided with a sliding clamping portion, and the active limiting member can move relative to the body member so that the engaging portion and the end of the actuator assembly can be switched between a separated state and an engaged state;

[0033] The engaging portion has a guiding channel, and when the engaging portion is in an engaged state with the end of the actuator assembly, the guiding channel communicates with the tool passing slot of the actuator assembly.

[0034] In one embodiment, the guiding channel includes a guiding slot.

[0035] In one embodiment, one end of the engaging portion away from the guiding portion has two spaced engaging arms, the engaging arms are used for connecting with the plugging slots of the actuator assembly, and the space between the two engaging arms forms the guiding channel;

[0036] And / or, the engaging portion is of a C-shaped structure or an H-shaped structure.

[0037] In one embodiment, a disassembly tool for a guiding assembly of a surgical instrument is provided, including:

[0038] A frame body, the frame body is used for moving forward and backward along a first path relative to the guiding assembly of the surgical instrument and the actuator assembly of the surgical instrument during disassembly work;

[0039] A motion mechanism, the motion mechanism is movably connected to the frame body, when the frame body moves forward along the first path, the motion mechanism can be triggered to move along a second path relative to the guiding assembly, and when the frame body moves backward along the first path, the motion mechanism can be triggered to drive the guiding assembly and the actuator assembly of the surgical instrument to switch from an engaged state to a separated state.

[0040] In one embodiment, the first path is a straight path parallel to the engaging direction of the guiding assembly, the second path is a circular path, and the straight path intersects the circular path.

[0041] In one embodiment, when the frame body moves forward along the first path, the guiding assembly passes over the motion mechanism and drives the motion mechanism to move forward along the second path. When the guiding assembly is in place, the guiding assembly is located on one side of the motion mechanism, and the motion mechanism abuts against the actuator assembly.

[0042] In one embodiment, when the frame body moves in the reverse direction along the first path, the motion mechanism abuts against the movable limiting member of the guiding assembly and drives the movable limiting member to move, so that the movable limiting member and the actuator assembly are switched from the engaged state to the separated state.

[0043] In one embodiment, the motion mechanism includes a separating member and a power member. When the frame body moves forward along the first path, it can drive the separating member to move forward along the second path. The power member is used to apply a force to the separating member to drive the separating member to move in the reverse direction along the second path, so that the separating member abuts against the tool passing groove of the actuator assembly. When the frame body moves in the reverse direction along the first path, it can trigger the separating member to abut against the movable limiting member and drive the movable limiting member to move, so that the movable limiting member and the actuator assembly are switched from the engaged state to the separated state.

[0044] In one embodiment, the separating member includes a lever. The lever has a relative connecting end and an executing end. The connecting end is rotatably connected to the frame body. The executing end is used to switch the movable limiting member and the actuator assembly from the engaged state to the separated state; and / or, the power member includes a torsion spring. The power member applies a torsion force to the separating member to drive the separating member to move in the reverse direction along the second path.

[0045] In one embodiment, the executing end has a hook-shaped structure, and the hook-shaped structure is used to drive the movable limiting member to move.

[0046] In one embodiment, the frame body is provided with a third limiting portion, and the third limiting portion is used to limit the extreme position of the separating member moving in the reverse direction along the second path, so that when the separating member is inserted into the tool passing groove of the actuator assembly, there is a distance between the separating member and the bottom surface of the tool passing groove.

[0047] In one embodiment, the separating member is provided with a fourth limiting portion, and the fourth limiting portion is used to abut against the actuator assembly, so that when the separating member is inserted into the tool passing groove of the actuator assembly, there is a distance between the separating member and the bottom surface of the tool passing groove.

[0048] In one embodiment, the frame body is provided with a fifth limiting portion, and the fifth limiting portion is used to limit the extreme position of the guiding assembly moving in the reverse direction along the first path to position the guiding assembly inside the motion mechanism.

[0049] In one embodiment, the frame body includes a receiving cavity, and the motion mechanism is disposed in the receiving cavity; the frame body is provided with a first opening for the guiding assembly to enter and exit the receiving cavity so as to move along a first path in the receiving cavity; the frame body is further provided with a second opening for removing the guiding assembly from the frame body after the guiding assembly is separated from the actuator assembly.

[0050] In one embodiment, a surgical instrument is provided, including:

[0051] A handle assembly;

[0052] A barrel assembly, the proximal end of the barrel assembly is connected to the handle assembly;

[0053] An actuator assembly, the actuator assembly is connected to the end of the barrel assembly, the actuator assembly includes an anvil and a staple cartridge base, the anvil is movably connected to the staple cartridge base, and the anvil and the staple cartridge base can move relative to each other to achieve closing and opening; and

[0054] The above-mentioned guiding assembly.

[0055] In one embodiment, the end of the anvil is provided with a plug-in slot, a clamping structure and a sliding guiding portion, the plug-in slot and the clamping structure are arranged along the length direction of the anvil, the plug-in slot is located at the end of the anvil, and the sliding guiding portion extends from the plug-in slot to the clamping structure.

[0056] In one embodiment, the sliding guiding portion is a third guiding surface, and the third guiding surface is parallel to the guiding direction.

[0057] In one embodiment, the anvil is further provided with a T-shaped cutting tool slot, and the plug-in slot, the clamping structure and the cutting tool slot are communicated in sequence; and / or, the clamping structure is a round hole perpendicular to the joining direction.

[0058] In one embodiment, the distance between the surface of the movable limiting member having the sliding clamping portion facing away from the engaging portion and the mounting surface of the engaging portion is less than the maximum thickness distance between the surface of the anvil facing away from the staple cartridge base and the bottom surface of the plug-in slot.

[0059] In one embodiment, the above-mentioned disassembly tool is further included.

[0060] In one embodiment, a packaging assembly is further included, the packaging assembly includes a first packaging member and a second packaging member, the first packaging member is used for packaging the handle assembly, the barrel assembly and the actuator assembly, and the second packaging member is used for packaging the guiding assembly and the disassembly tool.

[0061] In one embodiment, the second packaging member includes a housing and a lining. The housing has an inner cavity, and the lining is detachably disposed within the inner cavity of the housing. The lining is configured to hold at least one of the guiding assembly and the disassembly tool.

[0062] In one embodiment, the lining is provided with a first mounting groove and a second mounting groove. The first mounting groove is for mounting the guiding assembly, and the second mounting groove is for mounting the disassembly tool.

[0063] In one embodiment, a pick-and-place structure is provided at the connection between the lining and the housing. The pick-and-place structure is for taking out and putting in the lining.

[0064] In one embodiment, a surgical instrument is provided, comprising:

[0065] A handle assembly;

[0066] A barrel assembly, the proximal end of the barrel assembly being connected to the handle assembly;

[0067] An actuator assembly, the actuator assembly being connected to the distal end of the barrel assembly; and

[0068] A guiding assembly, the guiding assembly being connected to the actuator assembly;

[0069] A disassembly tool, the disassembly tool being configured to drive the guiding assembly and the actuator assembly of the surgical instrument to switch from an engaged state to a separated state; and

[0070] A packaging assembly, the packaging assembly including a second packaging member. The second packaging member is for packaging the guiding assembly and the disassembly tool. The second packaging member includes a housing and a lining. The housing has an inner cavity, and the lining is removably placed within the inner cavity of the housing. The lining is for packaging at least one of the guiding assembly and the disassembly tool, and the lining has a sterile environment.

[0071] According to the surgical instrument, guiding component and disassembly tool of the above embodiments, the guiding component includes a main body part and a movable limiting part. The main body part includes an engaging part and a guiding part. The engaging part is used to engage with the end of the actuator component of the surgical instrument. The guiding part is arranged on the engaging part and can be used to guide the insertion of the actuator component of the surgical instrument into a narrower space for surgical operations. When it is necessary to operate on tissues in a relatively narrow space, the operator can engage the engaging part of the guiding component with the end of the actuator component of the surgical instrument, so as to guide the actuator component into the tissues in the narrow space through the guiding part of the guiding component. When the guiding component is not needed, the operator can operate the movable limiting part to move, so that the guiding component and the surgical instrument are switched from the engaged state to the separated state, and then the guiding component is removed. The operator can meet the surgical needs only by a surgical instrument with a guiding component, without opening another instrument, which is beneficial to reducing medical costs and expenses.

[0072] The movable limiting part of the guiding component is movably connected to the engaging part or the guiding part. The movable limiting part can move relative to the main body part, so that the engaging part and the end of the actuator component are switched between the separated state and the engaged state. When the movable limiting part is subjected to a force in the engaging direction, the movable limiting part undergoes non-flexible deformation under the abutment of the sliding guiding part, and releases the non-flexible deformation when sliding to the engaging position to be engaged with the clamping structure of the actuator component. The guiding direction of the sliding guiding part intersects with the engaging direction of the actuator component. In other words, the engaging part and the end of the actuator component can be clamped in a sliding and elastic manner, that is, one-step clamping can be achieved, and the clamping efficiency of the engaging part and the end of the actuator component is high and the operation is simple.

[0073] The engaging part of the guiding component can have a guiding channel. When the engaging part is engaged with the end of the actuator, the guiding channel communicates with the through guiding groove of the actuator, so that the cutting knife in the cutting knife groove can extend into the guiding channel of the engaging part, which can avoid interfering with the movement of the cutting knife when the engaging part is engaged with the end of the actuator.

[0074] The disassembly tool of the surgical instrument includes a frame main body and a motion mechanism arranged on the frame main body. When the frame main body moves forward along the first path, it can trigger the motion mechanism to move relative to the guiding component along the second path. When the frame main body moves backward along the first path, it can trigger the motion mechanism to drive the guiding component and the actuator component of the surgical instrument to be switched from the engaged state to the separated state; in other words, when the frame main body moves forward along the first path and then moves backward along the first path, the separation of the guiding component and the actuator component can be realized, that is, the disassembly of the guiding component can be realized through simple two steps, and the operation is simple and efficient, which greatly facilitates the disassembly and replacement of the guiding component.

[0075] The packaging assembly of a surgical instrument includes a second package. The second package includes a housing and a lining located inside the housing. The lining is used to package at least one of a guiding component and a disassembling tool. When in use by an operator, the lining and the guiding component and / or the disassembling tool packaged by the lining can be taken out together. The lining plays a role of positioning and guiding, making the interaction between the operator and the guiding component and / or the disassembling tool more convenient, and can avoid the problem that the guiding component and / or the disassembling tool are placed separately, causing difficulties for the operator to find. Moreover, the lining has a sterile environment, which can prevent the guiding component and / or the disassembling tool from being directly placed in a bacteria-containing environment such as an operating table during use, thereby avoiding cross-contamination between the guiding component and / or the disassembling tool and the bacteria-containing environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] Figure 1 It is a schematic structural diagram of a surgical instrument in an embodiment;

[0077] Figure 2 It is a schematic structural diagram of a guiding component in an embodiment;

[0078] Figure 3 It is a side view of a guiding component in an embodiment;

[0079] Figure 4 It is a top view of a guiding component in an embodiment;

[0080] Figure 5 It is a schematic structural diagram of a body part in an embodiment;

[0081] Figure 6 It is a side view of a body part in an embodiment;

[0082] Figure 7 It is a schematic structural diagram of a movable limiting part in an embodiment;

[0083] Figure 8 It is a side view of a movable limiting part in an embodiment;

[0084] Figure 9 It is a schematic structural diagram of a first actuator assembly in an embodiment;

[0085] Figure 10 It is a schematic structural diagram of the end of a first actuator assembly in an embodiment;

[0086] Figure 11 It is a schematic structural diagram of the separated state of a guiding component and the end of an actuator assembly in an embodiment;

[0087] Figure 12 It is a schematic structural diagram of the sliding engagement of a guiding component and the end of an actuator assembly in an embodiment;

[0088] Figure 13 Schematic structural diagram of the engagement state between the guiding component and the end of the actuator component in an embodiment;

[0089] Figure 14 Top view of the engagement state between the guiding component and the end of the actuator component in an embodiment;

[0090] Figure 15 Schematic structural diagram of the reverse engagement between the guiding component and the end of the actuator component in an embodiment;

[0091] Figure 16 is Figure 15 Enlarged view of the partial C in;

[0092] Figure 17 Schematic structural diagram of the disassembly tool in an embodiment;

[0093] Figure 18 Cross-sectional view of the disassembly tool in an embodiment;

[0094] Figure 19 Schematic structural diagram of the separating member in an embodiment;

[0095] Figure 20 Schematic structural diagram of the actuator component with the guiding component engaged and the disassembly tool during assembly and disassembly;

[0096] Figure 21 Schematic structural diagram of the actuator component with the guiding component engaged and the disassembly tool during assembly and disassembly;

[0097] Figure 22 Schematic structural diagram of the actuator component with the guiding component engaged and the disassembly tool during assembly and disassembly;

[0098] Figure 23 Cross-sectional view of the actuator component with the guiding component engaged and the disassembly tool during assembly and disassembly;

[0099] Figure 24 Cross-sectional view of the actuator component with the guiding component engaged and the disassembly tool during assembly and disassembly;

[0100] Figure 25 Cross-sectional view of the actuator component with the guiding component engaged and the disassembly tool during assembly and disassembly;

[0101] Figure 26 Cross-sectional view of the actuator component with the guiding component engaged and the disassembly tool during assembly and disassembly;

[0102] Figure 27 is Figure 26 Enlarged partial view of;

[0103] Figure 28 Cross-sectional view of the separating part being snapped into the tool slot in one embodiment;

[0104] Figure 29 Schematic structural diagram of the first packaging component in one embodiment;

[0105] Figure 30 Schematic structural diagram of the second packaging component in one embodiment;

[0106] Figure 31 Schematic internal structural diagram of the second packaging component in one embodiment;

[0107] Figure 32 Schematic structural diagram of the inner lining in one embodiment.

[0108] The reference numerals are as follows:

[0109] 100 - handle assembly, 110 - fixed handle, 120 - trigger;

[0110] 200 - barrel assembly;

[0111] 300 - actuator assembly, 310 - first actuator assembly, 311 - insertion slot, 312 - clamping structure, 313 - sliding guide part, 314 - tool slot, 320 - second actuator assembly;

[0112] 400 - guiding assembly, 410 - body part, 411 - joint part, 412 - guiding part, 413 - first limiting part, 4131 - second guiding surface, 414 - second limiting part, 415 - guiding channel, 416 - clamping interface, 420 - movable limiting part, 421 - sliding clamping part, 4211 - first guiding surface, 4212 - stopping surface, 422 - abutting part, 420a - first cantilever, 420b - second cantilever, 420c - connecting arm;

[0113] 500 - disassembly tool, 510 - frame body, 511 - third limiting part, 512 - fifth limiting part, 513 - accommodating cavity, 514 - first opening, 515 - second opening, 520 - motion mechanism, 521 - separating part, 5211 - hook - like structure, 5212 - fourth limiting part, 522 - power part;

[0114] 600 - packaging assembly, 610 - first packaging component, 620 - second packaging component, 621 - outer shell, 6211 - placing step, 622 - inner lining, 6221 - first installation slot, 6222 - second installation slot, 623 - taking - placing structure, 630 - buckling structure. Detailed implementation manners

[0115] The present invention will be further described in detail below in conjunction with the specific embodiments and the accompanying drawings. Similar elements in different embodiments are denoted by related similar element numbers. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0116] In addition, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can also be reordered or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for clearly describing a certain embodiment, and do not mean that they are the necessary sequences, unless it is stated that a certain sequence must be followed.

[0117] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. In the present application, "connection" and "coupling", unless otherwise specified, both include direct and indirect connection (coupling). In this embodiment, the "distal end" refers to the end that is far from the operation when operating the surgical instrument, that is, the end close to the patient, and the "proximal end" refers to the end that is close to the operation when operating the surgical instrument, that is, the end far from the patient; the "axial direction" refers to the direction of the line connecting the centers of the distal end and the proximal end, and the "radial direction" refers to the direction perpendicular to the axial direction.

[0118] The stapler is a commonly used surgical instrument in minimally invasive surgery. Please refer to Figure 1 , the stapler generally includes a handle assembly 100, a barrel assembly 200, and an actuator assembly 300. The barrel assembly 200 includes a closing drive chain and a firing drive chain. The handle assembly 100 includes a fixed handle 110 and at least one trigger 120.

[0119] When operating the stapler, the operator can hold the fixed handle 110 and insert the actuator assembly 300 into the lesion site in the human body through the slender barrel assembly 200. Then, the closing transmission chain is triggered by the trigger 120, so that the jaws of the actuator assembly 300 are closed and clamped at a specific position near the lesion site. Next, the firing transmission chain is triggered by the trigger 120, so that the cutting knife in the actuator assembly 300 cuts the tissue, and at the same time, the tissue is sutured by the staples in the actuator assembly 300. In other embodiments, there may be other solutions for the operation modes of closing and firing. For example, the two triggers 120 are respectively operated to perform closing and firing. Or, an electric closing and firing solution. Specifically, the closing transmission chain and the firing transmission chain can be driven by a motor or manually driven.

[0120] Please refer to Figures 1 to 14 , in one embodiment, a surgical instrument is provided. The surgical instrument includes a handle assembly 100, a barrel assembly 200, an actuator assembly 300, and a guiding assembly 400.

[0121] The proximal end of the barrel assembly 200 is connected to the handle assembly 100, the distal end of the barrel assembly 200 is connected to the actuator assembly 300. The actuator assembly 300 includes a first actuator assembly 310 and a second actuator assembly 320. The first actuator assembly 310 is movably connected to the second actuator assembly 320, and the distal ends of the first actuator assembly 310 and the second actuator assembly 320 can move relative to each other to achieve closing and opening. The guiding assembly 400 can be engaged with the distal end of the first actuator assembly 310 or the distal end of the second actuator assembly 320.

[0122] When it is necessary to operate on the tissue in a relatively narrow space, the operator can engage the guiding assembly 400 with the distal end of the first actuator assembly 310 or the distal end of the second actuator assembly 320 of the surgical instrument. The guiding assembly 400 is an eagle-beak-shaped tip structure, so as to guide the actuator assembly 300 into the tissue in the narrow space through the guiding assembly 400. The operator can meet the surgical requirements only by one surgical instrument with the guiding assembly 400, without the need to open another instrument, which is beneficial to reducing the medical costs and expenses.

[0123] In one embodiment, a guiding assembly 400 for a surgical instrument is provided. The guiding assembly 400 can be detachably engaged with the actuator assembly 300 in the above embodiment for use.

[0124] The guiding assembly 400 of this embodiment includes a body member 410 and a movable limiting member 420.

[0125] The body 410 includes a joint portion 411 and a guide portion 412. The joint portion 411 is used to engage with the end of the actuator assembly 300 of the surgical instrument, and the guide portion 412 is arranged on the joint portion 411. The movable stopper 420 is movably connected to the joint portion 411 or the guide portion 412, and the movable stopper 420 can move relative to the body 410 to switch the joint portion 411 and the end of the actuator assembly 300 between a separation state and a connection state.

[0126] The movable stopper 420 includes a sliding clamping portion 421, which is slidably arranged relative to the sliding guide portion 313 at the end of the actuator assembly 300, and the sliding clamping portion 421 can slide along the sliding guide portion 313. The sliding clamping portion 421 is adapted to the clamping structure 312 at the end of the actuator assembly 300, and the sliding clamping portion 421 can slide to engage with the clamping structure 312.

[0127] When the engaging portion 411 engages with the end of the actuator assembly 300, the movable limiting member 420 is subjected to a force along the engaging direction, the sliding clamping portion 421 slides in contact with the sliding guide portion 313 at the end of the actuator assembly 300, and the sliding clamping portion 421 slides along the guiding direction of the sliding guide portion 313; during the sliding process, the movable limiting member 420 undergoes non-flexible deformation under the abutment of the sliding guide portion 313, and releases the non-flexible deformation when sliding to the engaging position, so as to engage with the clamping structure 312 of the actuator assembly 300, and the guiding direction of the sliding guide portion 313 intersects with the engaging direction of the actuator assembly 300.

[0128] like Figure 3 and Figure 11 As shown, the engagement direction is the axial direction of the actuator assembly 300, that is, the length direction of the actuator assembly 300, and the guiding direction is the sliding direction of the movable stopper 420, and the guiding direction is inclined relative to the engagement direction.

[0129] The main body 410 can be an integrated component made of a hard material such as metal, and the joint 411 and the guide part 412 are integrally formed. The integrally formed main body 410 has higher structural stability, can also reduce the gaps at the joints of the components, and is less likely to have residual tissue and liquid. The joint 411 and the guide part 412 are also two components made of a hard material such as metal, and the joint 411 and the guide part 412 can be fixed together by screw connection, clamping or welding. The guide part 412 is a structure similar to an eagle's beak, and the whole is a warped tip structure. This structure can guide the insertion into a small space. Of course, the tip of the guide part 412 is provided with a non-tip sharp structure such as a transition arc to avoid puncturing tissue.

[0130] The actuator assembly 300 includes a first actuator assembly 310 and a second actuator assembly 320. The first actuator assembly 310 is an anvil, and the second actuator assembly 320 is a cartridge base. In this embodiment, the guiding assembly 400 is engaged with the first actuator assembly 310, and the guiding assembly 400 is disposed at the end of the first actuator assembly 310. Of course, the guiding assembly 400 can also be engaged with the second actuator assembly 320, and the guiding assembly 400 is disposed at the end of the second actuator assembly 320. Both can achieve guiding the actuator assembly 300 into a narrow space.

[0131] Please refer to Figure 9 and Figure 10 , the first actuator assembly 310 may be provided with a plugging slot 311, a clamping structure 312 and a sliding guiding portion 313. The first actuator assembly 310 further includes a knife passing slot 314. The plugging slot 311 is located at the end of the first actuator assembly 310. The plugging slot 311, the clamping structure 312 and the knife passing slot 314 are sequentially communicated along the engaging direction. The sliding guiding portion 313 extends from the plugging slot 311 to the clamping structure 312.

[0132] Please refer to Figures 11 to 14 , when the guiding assembly 400 is engaged with the first actuator assembly 310, the guiding assembly 400 is docked with the end of the first actuator assembly 310 along the engaging direction, and the engaging portion 411 is inserted into the plugging slot 311. After the guiding assembly 400 receives a thrust in the engaging direction, the sliding clamping portion 421 of the guiding assembly 400 is in sliding contact with the sliding guiding portion 313, and the sliding clamping portion 421 slides along the guiding direction of the sliding guiding portion 313. During the sliding process, the movable limiting member 420 undergoes a non-flexible deformation under the abutment of the sliding guiding portion 313, and releases the non-flexible deformation when sliding to the engaging position to be clamped with the clamping structure 312 of the actuator assembly 300. The guiding direction of the sliding guiding portion 313 intersects with the engaging direction of the actuator assembly 300.

[0133] For the guiding assembly 400 of this embodiment, when an operation on tissues in a relatively narrow space is required, the operator can engage the engaging portion 411 of the guiding assembly 400 with the end of the actuator assembly 300 of the surgical instrument, so as to guide the actuator assembly 300 into the tissues in the narrow space through the guiding portion 412 of the guiding assembly 400. When the guiding assembly 400 is not needed, the operator can operate the movable limiting member 420 to move through a disassembling tool, so that the guiding assembly 400 is switched from the engaged state to the separated state with the surgical instrument, and then the guiding assembly 400 is removed.

[0134] The operator can meet the surgical requirements with only one surgical instrument with a guiding component 400, without the need to open another instrument, which is conducive to reducing medical costs and expenses. Moreover, when the end of the actuator assembly 300 is working, the sliding clamping part 421 slides into and clamps with the clamping structure 312 of the actuator assembly 300 through deformation. Therefore, a force for deforming and moving the sliding clamping part 421 needs to be applied to switch from the engaged state to the separated state, which is conducive to preventing the guiding component 400 from falling off the end of the actuator assembly 300 during operation and reducing the usage risk of the surgical instrument.

[0135] Please refer to Figure 2 、 Figure 7 and Figure 8 , in one embodiment, the movable limiting member 420 includes an opposite first end and second end. The first end of the movable limiting member 420 is movably connected to the body member 410. The movable limiting member 420 can be movably connected to the engaging portion 411, the movable limiting member 420 can also be movably connected to the guiding portion 412, or the movable limiting member 420 can also be movably connected to the connection portion between the engaging portion 411 and the guiding portion 412, all of which can realize the movable connection of the movable limiting member 420 relative to the body member 410.

[0136] The second end of the movable limiting member 420 forms a free end for buckling and clamping, and the sliding clamping part 421 is arranged at the second end of the movable limiting member 420. The movable limiting member 420 has an outer side facing away from the engaging portion 411 and an inner side facing the engaging portion 411. The sliding clamping part 421 protrudes from the inner side of the movable limiting member 420 facing the body member 410, so that the movable limiting member 420 and the engaging portion 411 can form a clamping structure to clamp the guiding component 400 at the end of the actuator assembly 300.

[0137] The sliding clamping part 421 and the movable limiting member 420 can be an integral structure, which has higher structural stability. The sliding clamping part 421 can also be fixed together by means of screw connection, clamping or welding.

[0138] The sliding clamping part 421 can be a wedge-shaped structure, and the sliding clamping part 421 can also be a structure with a triangular side surface. The sliding clamping part 421 has a first guiding surface 4211, and the first guiding surface 4211 faces the engaging portion 411. The first guiding surface 4211 extends to the end of the movable limiting member 420, so that when the movable limiting member 420 contacts the sliding guiding part 313 at the end of the actuator assembly 300, the first guiding surface 4211 can contact the sliding guiding part 313 to realize sliding buckling.

[0139] The sliding clamping portion 421 further has a stop surface 4212. The stop surface 4212 can be perpendicular or nearly perpendicular to the engagement direction, and the stop surface 4212 and the first guiding surface 4211 are arranged back to back. With the arrangement of the stop surface 4212, when the guiding component 400 is in an engaged state with the end of the actuator component 300 and the guiding component 400 is subjected to a force moving in the opposite direction of the engagement direction, the stop surface 4212 will be clamped with the clamping structure 312 to prevent the guiding component 400 from moving in the opposite direction of the engagement direction, that is, it can avoid the abnormal separation of the guiding component 400 from the end of the actuator component 300. In other words, the sliding clamping portion 421 belongs to a one-way sliding and clamping structure, which can only move along the engagement direction to achieve sliding clamping and cannot be directly separated by reverse movement.

[0140] Please refer to Figures 11 to 14 , when the guiding component 400 is engaged with the end of the actuator component 300, the first guiding surface 4211 of the sliding clamping portion 421 slides obliquely along the sliding guiding portion 313, and the movable limiting member 420 gradually opens relative to the engaging portion 411 and undergoes non-flexible deformation; when the sliding clamping portion 421 slides to the engagement position, the first guiding surface 4211 of the sliding clamping portion 421 is separated from the sliding guiding portion 313, the movable limiting member 420 releases the non-flexible deformation, the movable limiting member 420 closes relative to the engaging portion 411, the movable limiting member 420 returns to the initial position, and the sliding clamping portion 421 is clamped and engaged with the clamping structure 312 at the end of the actuator component 300.

[0141] The arrangement of the first guiding surface 4211 enables the movable limiting member 420 to be driven to move and undergo non-flexible deformation and release non-flexible deformation during the engagement process, that is, the movable limiting member 420 can be driven to open and close relative to the engaging portion 411 to achieve engagement with the end of the actuator component 300. During the engagement process, no other operations are required, and one-step sliding and spring clamping can be achieved, with simple and efficient operation.

[0142] Among them, the sliding guiding portion 313 can be a third guiding surface. In the engaged and aligned state, the third guiding surface is parallel to the first guiding surface 4211, and the third guiding surface and the first guiding surface 4211 are parallel to the guiding direction. The third guiding surface can guide the first guiding surface 4211 to slide along the plane direction of the third guiding surface.

[0143] In other embodiments, one of the first guiding surface 4211 and the third guiding surface is a guiding surface, and the other is replaced with a guiding protrusion. The guiding protrusion can be an arc structure such as a hemispherical shape. The cooperation between the guiding protrusion and the guiding surface can also guide the movable limiting member 420 to slide along the engagement direction to achieve the sliding clamping of the movable limiting member 420.

[0144] Please refer to Figures 1 to 8, In one embodiment, the movable connection between the first end of the movable limiting member 420 and the body member 410 can be a rotational connection. The movable limiting member 420 can be provided with a protruding rotating shaft, and the body member 410 can be provided with a corresponding movable slot. The movable slot can be a shaft hole slot corresponding to the rotating shaft, and the rotating shaft is rotationally connected to the movable slot to realize the rotational connection between the movable limiting member 420 and the body member 410. The rotating shaft can also be arranged on the body member 410, and the movable slot is arranged at one end of the movable limiting member 420, which can also realize the rotational connection between the movable limiting member 420 and the body member 410.

[0145] The body member 410 is provided with a first limiting portion 413. The first limiting portion 413 can be a protruding structure protruding from the side surface of the body member 410. The first limiting portion 413 can be arranged on the side surface of the joint portion 411, or the first limiting portion 413 can be arranged on the side surface of the guiding portion 412, or the first limiting portion 413 can be arranged on the side surface at the connection of the joint portion 411 and the guiding portion 412. The first limiting portion 413 is arranged on the movement path of the movable limiting member 420, and the first limiting portion 413 is used to squeeze the movable limiting member 420 to deform the movable limiting member 420. When the sliding clamping portion 421 slides obliquely along the guiding direction, the movable limiting member 420 is driven to rotate until it contacts the first limiting portion 413. When the movable limiting member 420 continues to rotate relative to the first limiting portion 413, the first limiting portion 413 squeezes the movable limiting member 420 and causes the movable limiting member 420 to undergo non-flexible deformation. Among them, after the movable limiting member 420 contacts the first limiting portion 413 and the sliding clamping portion 421 does not slide obliquely along the guiding direction to the engaging position, the movable limiting member 420 does not separate from the first limiting portion 413, which can avoid the premature release of the energy generated by the non-flexible deformation of the movable limiting member 420, so that when the movable limiting member 420 slides to the engaging position, the movable limiting member 420 releases the energy generated by the non-flexible deformation again.

[0146] Setting the first limiting portion 413 enables the movable limiting member 420 to undergo non-flexible deformation during rotation to store deformation energy, and then realizes automatic buckling by releasing the deformation energy, achieving the sliding elastic engagement between the guiding component 400 and the end of the actuator component 300. The guiding component 400 only needs to be inserted into the end of the actuator component 300 along the engaging direction, and the operation is simple and efficient.

[0147] Please refer to Figures 5 to 7 , In one embodiment, the first limiting portion 413 can be provided with a second guiding surface 4131. The second guiding surface 4131 intersects with the rotation trajectory of the movable limiting member 420, and the second guiding surface 4131 is not parallel to the plane where the rotation trajectory of the movable limiting member 420 is located. After the movable limiting member 420 rotates during sliding guidance, it will abut against the second guiding surface 4131 of the first limiting portion 413, and the second guiding surface 4131 will squeeze the movable limiting member 420 to undergo non-flexible deformation.

[0148] A convex abutting portion 422 may be provided on the side surface of the movable limiting member 420. The abutting portion 422 contacts the second guiding surface 4131 of the first limiting portion 413. The abutting portion 422 is a convex hull structure with an arc surface. The abutting portion 422 contacts the second guiding surface 4131 through the arc surface. By providing the abutting portion 422, the contact area between the movable limiting member 420 and the second guiding surface 4131 can be reduced, which is more conducive to realizing the non-flexible deformation of the movable limiting member 420 caused by extrusion.

[0149] In other embodiments, a second guiding surface is provided on the movable limiting member 420, and a convex abutting portion 422 is provided on the body member 410, which can also realize the limiting and non-flexible deformation of the movable limiting member 420 caused by extrusion.

[0150] Please refer to Figures 1 to 8 In one embodiment, a first limiting portion 413 is provided on each side of the body member 410, and the two first limiting portions 413 are symmetrically arranged along the central cross-section of the body member 410.

[0151] The movable limiting member 420 may be a double-cantilever structure such as a C shape. The movable limiting member 420 includes a first cantilever 420a, a second cantilever 420b, and a connecting arm 420c. One end of the first cantilever 420a is movably connected to one side of the body member 410, the other end of the first cantilever 420a is connected to the connecting arm 420c, one end of the second cantilever 420b is movably connected to the other side of the body member 410, the other end of the second cantilever 420b is connected to the connecting arm 420c, and the sliding clamping portion 421 is provided on the connecting arm 420c.

[0152] The first cantilever 420a, the second cantilever 420b, and the connecting arm 420c may be an integrated structure. The integrated first cantilever 420a, second cantilever 420b, and connecting arm 420c are more conducive to storing the energy generated by non-flexible deformation and can avoid the energy loss caused by the movement at the connection. The first cantilever 420a, the second cantilever 420b, and the connecting arm 420c may also be fixed together by welding, bonding, etc. This method can eliminate the gap at the connection and can also store the energy generated by non-flexible deformation well.

[0153] The first limiting portion 413 on one side of the body member 410 is used to squeeze the first cantilever 420a, and the first limiting portion 413 on the other side of the body member 410 is used to squeeze the second cantilever 420b. Among them, the first limiting portions 413 on both sides of the body member 410 have two inclined and symmetrical second guiding surfaces. When the guiding assembly 400 is engaged with the end of the actuator assembly 300, the first cantilever 420a and the second cantilever 420b rotate simultaneously and contact the second guiding surface of a first limiting portion 413. Under the guidance of the second guiding surfaces of the two first limiting portions 413, the first cantilever 420a and the second cantilever 420b will undergo non-flexible deformation of expanding energy storage, that is, when the first cantilever 420a and the second cantilever 420b rotate, they deform in a direction away from each other, and this deformation belongs to the radial deformation along the engagement direction.

[0154] Among them, both the first cantilever 420a and the second cantilever 420b are located outside the first limiting portion 413, which can prevent the first limiting portion 413 from directly contacting the tissue and avoid scratching the tissue by the first limiting portion 413.

[0155] The movable limiting member 420 is arranged in a C-shaped structure, and the two side cantilevers expand and store energy during the engagement process. When the guiding assembly 400 slides to the engagement position, the two side cantilevers can contract simultaneously to release the expanded energy storage to drive the sliding clamping portion 421 to be buckled and clamped with the clamping structure 312. The arrangement of the two side cantilevers can improve the stability of the deformation of the movable limiting member 420 and the stability of the driving of the sliding clamping portion 421 to buckle and move.

[0156] In other embodiments, the movable limiting member 420 may also include a single cantilever, and the body member 410 is correspondingly provided with a first limiting portion 413. For example, the movable limiting member 420 is a single-cantilever structure such as an L-shaped one. When the single cantilever of the movable limiting member 420 is in pressing contact with the first limiting portion 413 on the side surface of the body member 410, non-flexible deformation of expanding energy storage can also be generated, so as to realize the sliding and elastic engagement between the guiding assembly 400 and the end of the actuator assembly 300.

[0157] Please refer to Figure 2 and Figure 3 In an embodiment, the body member 410 is provided with a second limiting portion 414, and the second limiting portion 414 is located on the movement track of the movable limiting member 420. The second limiting portion 414 can be arranged on the joint portion 411, or can be arranged on the guiding portion 412, or can also be arranged at the connection position between the joint portion 411 and the guiding portion 412. The second limiting portion 414 is used to limit the movement stroke of the movable limiting member 420, that is, the second limiting portion 414 is used to limit the maximum angle at which the movable limiting member 420 opens relative to the joint portion 411.

[0158] The second limiting portion 414 can play a protective role, which can prevent the movable limiting member 420 from separating from the first limiting portion 413 due to excessive rotation angle during the sliding engagement process. The second limiting portion 414 can ensure that the movable limiting member 420 does not cross the first limiting portion 413, thereby ensuring that the movable limiting member 420 can release non-flexible deformation and engage with the end of the actuator assembly 300.

[0159] Please refer to Figure 15 , when the guiding assembly 400 rotates 180° along the engagement direction and engages with the end of the actuator assembly 300, that is, when the guiding assembly 400 is reversely docked with the end of the actuator assembly 300, due to the limiting block of the second limiting portion 414, the movable limiting member 420 cannot open wide enough to be stuck into the end of the actuator assembly 300. Therefore, the second limiting portion 414 can also prevent the reverse misinstallation of the guiding assembly 400.

[0160] In one embodiment, the second limiting portion 414 can be formed by extending from one edge of the movable groove of the body member 410, that is, the second limiting portion 414 and the body member 410 are of an integral structure. For example, the second limiting portion 414 can be formed by extending from the side surface of the guiding portion 412. With such a setting, the second limiting portion 414 and the body member 410 form a combination without connection traces, making the surface of the body member 410 smoother, facilitating the guiding of the guiding assembly 400, and avoiding the formation of a raised structure on the guiding assembly 400 from scratching the tissue.

[0161] In other embodiments, the second limiting portion 414 can also be arranged on the rotating shaft where the movable limiting member 420 is rotationally connected to the body member 410. By limiting the rotating shaft, the maximum stroke of the rotation of the movable limiting member 420 can also be limited, thereby realizing the sliding and elastic engagement of the movable limiting member 420 and avoiding misinstallation.

[0162] Please refer to Figures 1 to 6 , in one embodiment, the guiding portion 412 is in the shape of an eagle's beak. The guiding portion 412 has opposite first and second ends. The first end of the guiding portion 412 is a tip, and the guiding portion 412 gradually becomes larger from the first end to the second end. The guiding portion 412 mainly includes a first side surface, a second side surface, a third side surface, and a fourth side surface. The first side surface and the second side surface are opposite inclined surfaces, and the first side surface and the second side surface can also be curved surfaces, such as concave curved surfaces. The third side surface and the fourth side surface are opposite side surfaces. The third side surface and the fourth side surface are connected to both sides of the first side surface and the second side surface. The side edges where the first side surface, the second side surface, the third side surface, and the fourth side surface are connected are provided with rounded corner structures so that the contour of the guiding portion 412 is relatively round, which can avoid scratching the tissue by the sharp side edges. Among them, the third side surface and the fourth side surface are perpendicular to the engagement direction.

[0163] The length L1 of the guiding part 412 is 6 - 9 cm, and the length direction of the guiding part 412 is parallel to the joining direction. As Figure 6 shown, the length L1 of the guiding part 412 is the distance from point A to point B along the direction parallel to the joining direction. Where point A is the vertex of the tip of the guiding part 412, and point B is the point on the guiding part 412 that is farthest from point A.

[0164] The ratio of the length L1 to the height L2 of the guiding part 412 is 0.8 - 2, and the height of the guiding part 412 is perpendicular to the joining direction. As Figure 6 shown, the height L2 of the guiding part 412 is the distance from point A to point B along the direction perpendicular to the joining direction.

[0165] Please refer to Figure 4 , the included angle θ formed by the extension planes of the two side surfaces of the guiding part 412 is 10 - 25°. That is, the included angle θ formed by the extension planes of the third side surface and the fourth side surface of the guiding part 412 is 10 - 25°.

[0166] With the structure of the guiding part 412 having the above - mentioned proportional dimensions, an eagle - beak structure with a relatively upturned tip can be formed. This structure is small and three - dimensional, and can meet the surgical requirements with a sufficiently small size; moreover, the guiding part 412 with such proportional dimensions can also meet the requirements of different usage scenarios.

[0167] Among them, when the length L1 of the guiding part 412 is 7 - 8 cm, the ratio of the length L1 to the height L2 of the guiding part 412 is 1:1.5, and the included angle θ formed by the extension planes of the two side surfaces of the guiding part 412 is 15 - 20°, a more compact and three - dimensional structure can be formed, and it can meet the surgical requirements.

[0168] In one embodiment, the joining part 411 has a guiding channel 415. The joining part 411 includes an opposite first end and a second end. The first end of the joining part 411 is connected to the guiding part 412, and the second end of the joining part 411 is provided with the guiding channel 415. The guiding channel 415 extends from the end face of the second end of the joining part 411 along the reverse direction of the joining direction into the joining part 411.

[0169] When the guiding assembly 400 is joined to the end of the actuator assembly 300, the guiding channel 415 communicates with the tool - passing slot 314 of the actuator assembly 300. The guiding channel 415 is used to avoid the cutting tool, so that the cutting tool can move into the guiding channel 415 when moving in the tool - passing slot 314. The joining part 411 can be a C - shaped structure or an H - shaped structure, etc. One end of the C - shaped structure or H - shaped structure, etc. can form two spaced - apart connecting arms. The second end of the joining part 411 has spaced - apart connecting arms. The two connecting arms can be parallel arms arranged along the joining direction. A guiding channel 415 is formed between the two connecting arms of the joining part 411, and the two connecting arms of the joining part 411 are inserted into the insertion slots 311 of the actuator assembly 300.

[0170] The guiding channel 415 can be a guiding groove corresponding to the size of the tool-changing groove 314, so that the cutting tool can move into the guiding groove. The setting of the guiding channel 415 enables the engaging portion 411 not to interfere with the movement of the cutting tool when the guiding component 400 engages with the end of the actuator component 300.

[0171] Please refer to Figure 5 In one embodiment, the engaging portion 411 is further provided with a clamping interface 416. The clamping interface 416 can be an avoidance structure perpendicular to the engaging direction. The clamping interface 416 can be a blind hole on the engaging portion 411, or the engaging portion 411 can also be a through hole on the engaging portion 411. In the state where the engaging portion 411 engages with the end of the actuator component 300, a part of the sliding clamping portion 421 passes through the clamping structure 312 and is located in the clamping interface 416. The setting of the clamping interface 416 can prevent the sliding clamping portion 421 from contacting the engaging portion 411, thereby preventing the engaging portion 411 from pushing up the movable limiting member 420.

[0172] In one embodiment, a guiding component 400 for a surgical instrument is also provided.

[0173] Please refer to Figures 1 to 14 The guiding component 400 of this embodiment includes a body member 410 and a movable limiting member 420.

[0174] The body member 410 includes an engaging portion 411 and a guiding portion 412. The engaging portion 411 is used to engage with the end of the actuator component 300 of the surgical instrument, and the guiding portion 412 is arranged on the engaging portion 411. The movable limiting member 420 is movably connected to the engaging portion 411 or the guiding portion 412, and the movable limiting member 420 can move relative to the body member 410 to switch the engaging portion 411 between a separated state and an engaged state with the end of the actuator component 300.

[0175] The body member 410 can be an integrated rigid material component such as metal. The engaging portion 411 and the guiding portion 412 are integrally formed. The integrally formed body member 410 has higher structural stability, can also reduce the gaps at the component joints, and is less likely to remain tissues and liquids. The engaging portion 411 and the guiding portion 412 can also be two rigid material components such as metal, and the engaging portion 411 and the guiding portion 412 can be fixed together by means of screw connection, clamping or welding. The guiding portion 412 is in a structure similar to an eagle's beak, and is a warped tip structure as a whole. This structure can guide insertion into a narrow space. Of course, a transition arc or other non-sharp tip structures are provided at the tip of the guiding portion 412 to avoid stabbing tissues.

[0176] The actuator assembly 300 includes a first actuator assembly 310 and a second actuator assembly 320. The first actuator assembly 310 is an anvil, and the second actuator assembly 320 is a cartridge base. In this embodiment, the guiding assembly 400 is engaged with the first actuator assembly 310, and the guiding assembly 400 is disposed at the end of the first actuator assembly 310. Of course, the guiding assembly 400 can also be engaged with the second actuator assembly 320, and the guiding assembly 400 is disposed at the end of the second actuator assembly 320. Both can achieve guiding the actuator assembly 300 into a narrow space.

[0177] The first actuator assembly 310 is provided with a plug-in slot 311, a clamping structure 312, and a sliding guiding portion 313. The first actuator assembly 310 further includes a knife-passing slot 314. The plug-in slot 311 is located at the end of the first actuator assembly 310, and the plug-in slot 311, the clamping structure 312, and the knife-passing slot 314 are sequentially communicated along the engaging direction. The sliding guiding portion 313 extends from the plug-in slot 311 to the clamping structure 312.

[0178] The engaging portion 411 has a guiding channel 415. The engaging portion 411 includes an opposite first end and a second end. The first end of the engaging portion 411 is connected to the guiding portion 412. The second end of the engaging portion 411 is provided with the guiding channel 415. The guiding channel 415 extends from the end face of the second end of the engaging portion 411 along the reverse direction of the engaging direction into the engaging portion 411.

[0179] When the guiding assembly 400 is engaged with the end of the actuator assembly 300, the guiding channel 415 is communicated with the knife-passing slot 314 of the actuator assembly 300. The guiding channel 415 is used to avoid the cutting knife, so that the cutting knife can move into the guiding channel 415 when moving in the knife-passing slot 314.

[0180] Please refer to Figure 5 , in one embodiment, the engaging portion 411 can be a C-shaped structure or an H-shaped structure, etc. One end of the C-shaped structure or the H-shaped structure, etc. can form two spaced connecting arms. The second end of the engaging portion 411 has spaced connecting arms. The two connecting arms can be parallel arms arranged along the engaging direction. A guiding channel 415 is formed between the two connecting arms of the engaging portion 411. The two connecting arms of the engaging portion 411 are inserted into the plug-in slot 311 of the actuator assembly 300.

[0181] The guiding channel 415 can be a guiding slot corresponding to the size of the knife-passing slot 314, so that the cutting knife can move into the guiding slot. The setting of the guiding channel 415 makes the engaging portion 411 not interfere with the movement of the cutting knife when the guiding assembly 400 is engaged with the end of the actuator assembly 300.

[0182] In one embodiment, a disassembly tool for a guiding assembly of a surgical instrument is provided. This disassembly tool is used to separate and disassemble the guiding assembly from the actuator assembly.

[0183] Please refer to Figures 17 to 28 , the disassembly tool 500 of this embodiment mainly includes a frame body 510 and a motion mechanism 520, and the motion mechanism 520 is movably connected to the frame body 510.

[0184] The frame body 510 is used to move forward and backward along a first path relative to the guiding component 400 of the surgical instrument and the actuator component 300 of the surgical instrument during the disassembly work. The forward movement of the frame body 510 along the first path can trigger the motion mechanism 520 to move along a second path relative to the guiding component 400, and the reverse movement of the frame body 510 along the first path can trigger the motion mechanism 520 to drive the guiding component 400 and the actuator component 300 of the surgical instrument to switch from the engaged state to the separated state.

[0185] Wherein, the first path is parallel to the engaging direction of the guiding component 400, and the direction of the first path is the direction in which the combination of the guiding component 400 and the actuator component 300 moves relative to the frame body 510. The first path is a straight line path, and the combination of the guiding component 400 and the actuator component 300 can move forward and backward linearly relative to the frame body 510 to realize the disassembly of the guiding component 400.

[0186] The second path can be a circular path. During the disassembly work, the motion mechanism 520 can only move on a partial arc segment of the circular path. The first path and the second path are located in the same plane and intersect each other, so that the frame body 510 can drive the motion mechanism 520 to move along the second path when moving along the first path, so as to realize the disassembly of the guiding component 400.

[0187] This disassembly tool only needs to move forward and backward along the first path to realize the disassembly of the guiding component, that is, this disassembly tool can realize the disassembly of the guiding component through a back-and-forth pulling action, and has the advantages of high disassembly efficiency, simple and convenient operation, etc.

[0188] In one embodiment, the disassembly of the disassembly tool 500 includes two steps: the first step is that the frame body 510 moves forward along the first path, that is, the frame body 510 moves relatively closer to the actuator component 300; the second step is that the frame body 510 moves backward along the first path, that is, the frame body 510 moves relatively away from the actuator component 300.

[0189] Please refer to Figures 20 to 24, in the first step: when the frame body 510 moves forward along the first path, the guiding component 400 crosses the moving mechanism 520 and drives the moving mechanism 520 to move forward along the second path. After the guiding component 400 is in place, the guiding component is located inside the moving mechanism 520, and the moving mechanism 520 abuts against the actuator component 300. That is, the guiding component 400 will move from the outside of the moving mechanism 520 to the inside, and when contacting the moving mechanism 520, it will also drive the moving mechanism 520 to move. Among them, the outside means that both the guiding component 400 and the actuator component 300 are located outside the disassembly tool 500, and the inside means that the guiding component 400 is inserted inside the disassembly tool 500.

[0190] Please refer to Figure 25 and Figure 27 , in the second step: when the frame body 510 moves backward along the first path, the moving mechanism 520 abuts against the movable limiting member 420 of the guiding component 400 and drives the movable limiting member 420 to move, so that the movable limiting member 420 switches from the engaged state to the separated state with the actuator component 300.

[0191] Among them, the moving mechanism 520 can drive the movable limiting member 420 to move along the direction opposite to the buckling direction, so that the sliding clamping portion 421 of the movable limiting member 420 is separated from the clamping structure 312 at the end of the actuator component 300, and finally the disassembly of the guiding component 400 is realized.

[0192] In an embodiment, the moving mechanism 520 may include a separating member 521 and a power member 522. The power member 522 is connected to the separating member 521. The separating member 521 is used to separate the sliding clamping portion 421 from the clamping structure 312, and the power member 522 is used to provide a restoring force for the separating member 521.

[0193] When the disassembly tool 500 is disassembling, the frame body 510 moving forward along the first path ( Figure 27 the rightward direction in the figure) can drive the separating member 521 to move forward along the second path ( Figure 27 the clockwise direction in the figure). The power member 522 is used to apply a force to the separating member 521 to drive the separating member 521 to move backward along the second path, so that the separating member abuts against the tool slot 314 of the actuator component 300; the frame body 510 moving backward along the first path (the leftward direction in Figure 27) can trigger the separating member 521 to abut against the movable limiting member 420 and drive the movable limiting member 420 to move, so that the movable limiting member 420 switches from the engaged state to the separated state with the actuator component 300.

[0194] The separating member 521 may include a rod-shaped structural member such as a lever. The separating member 521 has opposite connecting ends and an actuating end. The connecting end of the separating member 521 may be rotatably connected to the frame body 510, and the separating member 521 may be rotatably connected to the frame body 510 through a rotating shaft. The actuating end of the separating member 521 can move forward and backward along the second path. In the first step of the disassembly process, the guiding assembly 400 will move from the outside to the inside of the actuating end of the separating member 521, drive the actuating end of the separating member 521 to move, and snap into the tool slot 314 of the actuator assembly 300; in the second step of the disassembly process, the actuating end of the separating member 521 is disposed on the moving path of the sliding clamping portion 421 of the movable limiting member 420, so that the actuating end of the separating member 521 will contact the sliding clamping portion 421 and drive the movable limiting member 420 to open relative to the body member 410, and finally the guiding assembly 400 and the actuator assembly 300 are switched from the engaged state to the separated state, realizing the disassembly of the guiding assembly 400.

[0195] Wherein, the power member 522 may be an elastic member such as a torsion spring. The elastic member such as a torsion spring may be installed on the rotating shaft connecting the separating member 521 and the frame body 510. The power member 522 always applies a torsion force to the separating member 521, such as Figure 27 the torsion force in the counterclockwise direction in the figure, to drive the separating member 521 to move backward along the second path, so that the separating member 521 can be squeezed and rotated by the guiding assembly 400, the guiding assembly 400 passes over the separating member 521, and the actuating end of the separating member 521 can abut against the tool slot 314 of the actuator assembly 300, finally realizing the disassembly of the guiding assembly 400.

[0196] In this embodiment, the separating member 521 is set as a rotating structure, and the separating member 521 is driven to reset by an elastic member such as a torsion spring. The structure is relatively simple, which can reduce the production cost of the disassembly tool; moreover, the moving range of the separating member 521 is small, and it has high reliability, which can ensure that the disassembly tool is not easily damaged for a long time.

[0197] In one embodiment, the actuating end of the separating member 521 has a hook-shaped structure 5211. The hook-shaped structure 5211 is located on the side facing the positive direction of the second path, such as Figure 28 the left side in the figure. The hook-shaped structure 5211 is used to abut against the sliding clamping portion 421 to drive the movable limiting member 420 to move. In particular, when the first guiding surface is provided on the abutting sliding clamping portion 421, the hook-shaped structure 5211 at the actuating end of the separating member 521 can guide the sliding clamping portion 421 to slide along the guiding direction of the first guiding surface, so as to drive the sliding clamping portion 421 to slide to be separated from the clamping structure 312 of the actuator assembly 300.

[0198] The execution end of the separator 521 is provided with a hook structure 5211, which can improve the stability of the separator 521 in driving the movable limiter 420 to move, and can avoid problems such as the execution end of the separator 521 and the movable limiter 420 being stuck or slipping and misaligned.

[0199] In other embodiments, the execution end of the separation member 521 may also be other protruding structures, and other protruding structures may also be used to abut the sliding clamping portion 421 to drive the sliding clamping portion 421 to slide to be separated from the clamping structure 312 of the actuator assembly 300.

[0200] Please refer to Figure 18 and Figure 28 In one embodiment, the frame body 510 is provided with a third limiting portion 511, and the third limiting portion 511 can be a protruding structure. The third limiting portion 511 is arranged on the path where the separator 521 moves in the opposite direction along the second path. The third limiting portion 511 is used to limit the extreme position of the separator 521 moving in the opposite direction along the second path. When the first step of the disassembly process is completed, when the separator 521 is inserted into the knife groove 314 of the actuator assembly 300, there is a distance between the execution end of the separator 521 and the bottom surface of the knife groove 314, that is, the execution end of the separator 521 does not contact the bottom surface of the knife groove 314.

[0201] The spacing between the execution end of the separation piece 521 and the bottom surface of the knife groove 314 is set so that the separation piece 521 will not come into contact with the tissue or liquid remaining on the bottom surface of the knife groove 314, thereby avoiding contamination of the disassembly tools by used surgical instruments during the disassembly process, and avoiding the tissue or liquid remaining on the bottom surface of the knife groove 314 affecting the disassembly guide assembly 400 of the separation piece 521.

[0202] Please refer to Figure 19 and Figure 28 In one embodiment, a fourth limiting portion 5212 is provided at the execution end of the separator 521. The fourth limiting portion 5212 is a structure protruding in a direction perpendicular to the plane where the first path and the second path are located. The fourth limiting portion 5212 is used to abut the actuator assembly 300, specifically, to abut the top wall above the knife groove 314. The knife groove 314 is a T-shaped groove, and the knife groove 314 has a narrowed top wall above. The fourth limiting portion 5212 abuts against the outer surface of the top wall above the knife groove 314, and can limit the position of the execution end of the separator 521 relative to the knife groove 314.

[0203] The distance between the fourth limiting part 5212 and the end of the execution end of the separating part 521 is less than the depth of the tool - passing groove 314. When the execution end of the separating part 521 is snapped into the tool - passing groove 314, a spacing is formed between the execution end of the separating part 521 and the bottom surface of the tool - passing groove 314. This enables the separating part 521 not to come into contact with the tissue or liquid remaining on the bottom surface of the tool - passing groove 314, avoiding contamination of the disassembly tool by the used surgical instruments during the disassembly process and preventing the tissue or liquid remaining on the bottom surface of the tool - passing groove 314 from affecting the disassembly of the separating part 521 of the guiding assembly 400.

[0204] Both the third limiting part 511 and the fourth limiting part 5212 can be provided inside the disassembly tool, forming a double - limiting guarantee, which can prevent the execution end of the separating part 521 from contacting the bottom surface of the tool - passing groove 314 due to the failure of a single limit.

[0205] In other embodiments, only the third limiting part 511 or the fourth limiting part 5212 can be provided inside the disassembly tool, which can also play a role in limiting.

[0206] Please refer to Figure 18 In one embodiment, the frame body 510 is provided with a fifth limiting part 512, and the fifth limiting part 512 is arranged on the path of the guiding assembly 400 moving along the first path. The fifth limiting part 512 can be a limiting structure such as a limiting protrusion or a limiting baffle. The fifth limiting part 512 is used to limit the extreme position of the guiding assembly 400 moving in the reverse direction along the first path, so that when the first step of the disassembly process is completed, the guiding assembly 400 can entirely cross over the separating part 521 to position the guiding assembly 400 inside the moving mechanism 520, enabling the moving mechanism 520 to abut against the movable limiting part 420 of the guiding assembly 400 when the second step of the disassembly is carried out.

[0207] Please refer to Figure 17 and Figure 18 In one embodiment, the frame body 510 is a long - strip rectangular body structure. The frame body 510 can be an integrated structure or can also be formed by enclosing and fixing multiple plate - like structures.

[0208] The frame body 510 includes a receiving cavity 513, and the moving mechanism 520 is movably installed inside the receiving cavity 513. The frame body 510 is provided with a first opening 514. The first opening 514 is located on the end surface in the length direction of the frame body 510, and the first opening 514 communicates with the receiving cavity 513. The first opening 514 is used for the guiding assembly 400 to enter and exit the receiving cavity to enable the guiding assembly 400 to move along the first path inside the receiving cavity 513.

[0209] The moving mechanism 520 can be arranged near the first opening 514, so that the guiding assembly 400 can be disassembled by moving a shorter stroke across the moving mechanism 520, and thus the length of the frame body 510 can be shortened.

[0210] Please refer to Figure 17 and Figure 18 , in one embodiment, the frame body 510 may further be provided with a second opening 515, which is arranged on the side surface in the length direction of the frame body 510. The second opening 515 is used to take out the guiding assembly 400 from the accommodating cavity 513 of the frame body 510 after the guiding assembly 400 is separated from the actuator assembly 300. Moreover, the second opening 515 can also serve as an observation window for the operator to view the separation situation of the guiding assembly 400, and when jamming or other problems occur, the operation can be processed through the second opening 515.

[0211] Please refer to Figures 1 to 14 , in one embodiment, a surgical instrument is provided, and the surgical instrument includes a handle assembly 100, a barrel assembly 200, an actuator assembly 300, and a guiding assembly 400. The guiding assembly 400 includes the guiding assembly 400 in any of the above embodiments.

[0212] The proximal end of the barrel assembly 200 is connected to the handle assembly 100, and the distal end of the barrel assembly 200 is connected to the actuator assembly 300.

[0213] The actuator assembly 300 includes a first actuator assembly 310 and a second actuator assembly 320. The first actuator assembly 310 is an anvil, and the second actuator assembly 320 is a cartridge base. In this embodiment, the guiding assembly 400 is engaged with the first actuator assembly 310, and the guiding assembly 400 is arranged at the distal end of the first actuator assembly 310; of course, the guiding assembly 400 can also be engaged with the second actuator assembly 320, and the guiding assembly 400 is arranged at the distal end of the second actuator assembly 320; both can achieve guiding the actuator assembly 300 into a narrow space.

[0214] The first actuator assembly 310 may be provided with a plugging slot 311, a clamping structure 312, and a sliding guiding portion 313. The first actuator assembly 310 further includes a knife-passing slot 314. The plugging slot 311 is located at the distal end of the first actuator assembly 310, and the plugging slot 311, the clamping structure 312, and the knife-passing slot 314 are sequentially communicated along the engaging direction. The sliding guiding portion 313 extends from the plugging slot 311 to the clamping structure 312.

[0215] The sliding guiding part 313 can be a third guiding surface. When the guiding component 400 and the guiding actuator component 300 are in the engaged and aligned state, the third guiding surface is parallel to the first guiding surface 4211, and both the third guiding surface and the first guiding surface 4211 are parallel to the guiding direction. The third guiding surface can guide the first guiding surface 4211 to slide along the plane direction of the third guiding surface.

[0216] In other embodiments, one of the first guiding surface 4211 and the third guiding surface is still a guiding surface, and the other is replaced by a guiding protrusion. The guiding protrusion can be an arc structure such as a hemispherical shape. The cooperation between the guiding protrusion and the guiding surface can also guide the movable limiting part 420 to slide along the engaging direction, realizing the sliding and clamping of the movable limiting part 420.

[0217] For the guiding component 400 of this embodiment, when an operation needs to be performed on tissues in a relatively narrow space, the operator can engage the engaging part 411 of the guiding component 400 with the end of the actuator component 300 of the surgical instrument, so as to guide the actuator component 300 into the tissues in the narrow space through the guiding part 412 of the guiding component 400. When the guiding component 400 is not needed, the operator can operate the movable limiting part 420 to move through a disassembly tool, so that the guiding component 400 and the surgical instrument are switched from the engaged state to the separated state, and then the guiding component 400 can be removed.

[0218] The operator can meet the surgical requirements only through a surgical instrument with a guiding component 400, without the need to open another instrument, which is beneficial to reducing medical costs and expenses. Moreover, since the sliding clamping part 421 slides into and engages with the clamping structure 312 of the actuator component 300 by deforming during the operation of the end of the actuator component 300, a force for deforming and moving the sliding clamping part 421 needs to be applied to switch from the engaged state to the separated state, which is beneficial to preventing the guiding component 400 from falling off the end of the actuator component 300 during the operation and reducing the use risk of the surgical instrument.

[0219] Please refer to Figure 9 and Figure 10 In one embodiment, the clamping structure 312 can be a round hole perpendicular to the engaging direction, and the clamping structure 312 can be other shaped holes perpendicular to the engaging direction, such as a square hole or an oval hole. The clamping structure 312 is perpendicular to the engaging direction, so that after the sliding clamping part 421 is engaged with the clamping structure 312, the sliding clamping part 421 cannot be automatically separated from the clamping structure 312, which can improve the stability of the engagement connection between the sliding clamping part 421 and the clamping structure 312 and avoid the separation of the guiding component 400 and the actuator component 300 during the operation.

[0220] Please refer to Figure 15 and Figure 16, In one embodiment, the distance H1 between the surface of the end of the movable limiting member 420 having the sliding clamping portion 421 facing away from the engaging portion 411 and the second mounting surface of the engaging portion 411 is less than the maximum thickness distance between the surface of the first actuator assembly 310 (anvil) facing away from the second actuator assembly 320 (cartridge base) and the bottom surface of the insertion slot 311 of the first actuator assembly 310, that is, H1 < H2. Among them. The engaging portion 411 has opposite first and second mounting surfaces, the first and second mounting surfaces are parallel and parallel to the engaging direction. In the normal installation case, the first mounting surface will contact the bottom surface of the insertion slot 311.

[0221] After the guiding assembly 400 rotates 180° along the engaging direction, the second mounting surface of the engaging portion 411 will contact the bottom surface of the insertion slot 311. At this time, due to H1 < H2, the end face of the first actuator assembly 310 will abut against the movable limiting member 420, so that the movable limiting member 420 cannot be squeezed and moved, that is, when the movable limiting member 420 is inserted along the engaging direction, it will not be driven to move and form an open state, thereby avoiding the guiding assembly 400 being reversely installed on the first actuator assembly 310. In other words, such a setting can play a role in preventing reverse installation by mistake and avoid the operator from making a wrong installation.

[0222] In one embodiment, a surgical instrument is provided. The surgical instrument includes a handle assembly 100, a barrel assembly 200, an actuator assembly 300, a guiding assembly 400, and a disassembly tool 500. The guiding assembly 400 includes the guiding assembly 400 in any of the above embodiments, and the disassembly tool 500 includes the disassembly tool 500 in any of the above embodiments.

[0223] In one embodiment, a surgical instrument is provided. The surgical instrument includes a handle assembly 100, a barrel assembly 200, an actuator assembly 300, a guiding assembly 400, a disassembly tool 500, and a packaging assembly 600. The guiding assembly 400 includes the guiding assembly 400 in any of the above embodiments, and the disassembly tool 500 includes the disassembly tool 500 in any of the above embodiments.

[0224] Please refer to Figure 29 and Figure 30 , The packaging assembly 600 includes a first packaging member 610 and a second packaging member 620. The first packaging member 610 is used to package the handle assembly 100, the barrel assembly 200, and the actuator assembly 300, and the second packaging member 620 is used to package the guiding assembly 400 and the disassembly tool 500.

[0225] In one embodiment, the second package 620 is connected to the upper surface, lower surface, side portion or inside of the first package 610. The first package 610 and the second package 620 can be connected together by bonding or the like. Thus, it is convenient for the operator to take out the first package 610 and the second package 620 at the same time.

[0226] In one embodiment, the second package 620 is connected to the first package 610 through an interference fit snap structure 630.

[0227] It is convenient for the operator to take out the first package 610 and the second package 620 at the same time. When the operator only needs to use the internal parts of the first package 610, the first package 610 can be conveniently separated from the second package 620.

[0228] In one embodiment, a first clamping portion may be provided on the lower surface of the first package 610, and a second clamping portion may be provided on the lower surface of the second package 620. One of the first clamping portion and the second clamping portion is a protrusion, and the other is a clamping groove. The clamping of the protrusion and the clamping groove can clamp the first package 610 and the second package 620 together, facilitating the operator to take out the first package 610 and the second package 620 at the same time.

[0229] In one embodiment, the lower surface of the first package 610 has a groove, and the second package 620 can be installed in the groove on the lower surface of the first package 610. The second package 620 can be wholly or partly hidden in the groove of the first package 610. When the first package 610 and the second package 620 are connected, the overall volume can be reduced, the occupied space of the first package 610 and the second package 620 can be reduced, and the storage and packaging of the first package 610 and the second package 620 are facilitated.

[0230] Please refer to Figure 31 and Figure 32 , in one embodiment, the second package 620 includes a housing 621 and a lining 622. The housing 621 has a receiving cavity, and the lining 622 is detachably disposed in the receiving cavity of the housing 621. The lining 622 is used to install the guiding component 400 and the disassembly tool 500. The lining 622 places the guiding component 400 and the disassembly tool 500 in the receiving cavity of the housing 621. When the guiding component 400 or the disassembly tool 500 needs to be used, the lining 622 and the guiding component 400 and the disassembly tool 500 located on the lining 622 can be taken out together first, and then the guiding component 400 or the disassembly tool 500 can be picked up from the lining 622.

[0231] The guiding component 400 and the disassembly tool 500 can be installed side by side or stacked in the lining 622.

[0232] A lining 622 is provided inside the second packaging member 620, enabling the operator to take out the guiding assembly 400 and the disassembly tool 500 as a whole from the packaging and place them in the same position, facilitating the operator to use the guiding assembly 400 and the disassembly tool 500 in sequence, enabling the operator to quickly and accurately locate the guiding assembly 400 and the disassembly tool 500, and improving the interaction efficiency and interaction experience.

[0233] The lining 622 can also provide a sterile environment. When the guiding assembly 400 and the disassembly tool 500 are taken out from the second packaging member 620, they are still located inside the lining 622 with a sterile environment, which can prevent the taken-out guiding assembly 400 and disassembly tool 500 from being directly placed on a workbench or other countertops, thereby avoiding cross-contamination between the guiding assembly 400 and the disassembly tool 500 and a contaminated environment.

[0234] Please refer to Figure 31 and Figure 32 , in an embodiment, the lining 622 is provided with a first installation groove 6221 and a second installation groove 6222 located in a plane. The shape and structure of the first installation groove 6221 are adapted to the guiding assembly 400. The first installation groove 6221 is used for installing the guiding assembly 400. The first installation groove 6221 can have one or more, and the number of the first installation grooves 6221 can be set according to the usage requirements to install the corresponding number of guiding assemblies 400. The shape and structure of the second installation groove 6222 are adapted to the disassembly tool 500. The second installation groove 6222 is used for installing the disassembly tool 500.

[0235] The lining 622 can be a plastic part or other material structure with a certain elastic energy. A limit clamping connection can be formed between the first installation groove 6221 and the guiding assembly 400, making it difficult for the guiding assembly 400 to fall out of the first installation groove 6221; a limit clamping connection can also be formed between the second installation groove 6222 and the disassembly tool 500, making it difficult for the disassembly tool 500 to fall out of the second installation groove 6222, improving the safety of the lining 622 for installing the guiding assembly 400 and the disassembly tool 500.

[0236] Please refer to Figure 31 and Figure 32 , in an embodiment, the lining 622 can be provided with only the first installation groove 6221 or the second installation groove 6222. The lining 622 is used for separately installing one of the guiding assembly 400 and the disassembly tool 500, and the other can be directly installed in the accommodating cavity of the housing 621.

[0237] In one embodiment, two liners 622 may be provided in the housing 621, one of the liners 622 having a first mounting groove 6221 for mounting the guide assembly 400, and the other liner 622 having a second mounting groove 6222 for mounting the disassembly tool 500. Multiple guide assemblies 400 may also be taken out together, which facilitates the picking up, use and storage management of multiple guide assemblies 400, and also avoids placing the guide assemblies 400 and the disassembly tool 500 directly on a sterile table, thereby preventing cross contamination.

[0238] Please refer to Figure 31 and Figure 32 In one embodiment, a pick-and-place structure 623 is provided at the connection between the lining 622 and the outer shell 621 , and the pick-and-place structure 623 is used to facilitate the removal and placement of the lining 622 relative to the outer shell 621 .

[0239] The inner side wall of the receiving cavity of the shell 621 may be provided with a placement step 6211, which may be an annular step surrounding the receiving cavity, or may include a plurality of protrusions. The edge of the liner 622 is provided with a support portion, which is used to receive the placement step 6211 to support the liner 622 in the receiving cavity of the shell 621. The support portion of the liner 622 may be provided with a notch, so that the edge of the liner 622 and the inner side wall of the receiving cavity of the shell 621 form a notch, which is a pick-and-place structure 623, and the operator can insert a finger into the notch to pick up the liner 622, so as to take out and put in the liner 622.

[0240] The pick-and-place structure 623 is a notch structure, and no additional structure is required, thereby reducing the occupied space in the accommodating cavity of the housing 621 .

[0241] In other embodiments, the taking and placing structure 623 may also be a raised structure provided on the lining 622, such as a raised handle structure, and the operator may also take out and put in the lining 622 through the raised structure.

[0242] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. A guide assembly for a surgical instrument, characterized in that: include: A body member, comprising a coupling portion and a guide portion, wherein the coupling portion is used to couple with a distal end of an actuator assembly of the surgical instrument, and the guide portion is disposed on the coupling portion; A movable stopper, the movable stopper being movably connected to the engaging portion or the guiding portion, the movable stopper comprising a sliding clamping portion, and the movable stopper being used to switch the engaging portion and the end of the actuator assembly between a separation state and an engagement state; When the engaging portion engages with the end of the actuator assembly, the sliding clamping portion slides in contact with the sliding guide portion of the actuator assembly to slide along the guiding direction of the sliding guide portion; during the sliding process, the movable limiting member undergoes non-flexible deformation under the abutment of the sliding guide portion, and releases the non-flexible deformation when sliding to the engaging position to engage with the clamping structure of the actuator assembly, and the guiding direction of the sliding guide portion intersects with the engaging direction of the actuator assembly.

2. The guide assembly according to claim 1, characterized in that The sliding clamping part protrudes from the movable stopper, and the sliding clamping part has a first guide surface. The sliding clamping part is in sliding contact with the sliding guide part of the actuator assembly through the first guide surface, and the first guide surface is parallel to the guiding direction.

3. The guide assembly according to claim 1 or 2, characterized in that: The joint portion and / or the guiding portion is provided with a first limiting portion, and the first limiting portion is arranged on the movable path of the movable limiting member. When the sliding clamping portion slides obliquely along the guiding direction, the first limiting portion squeezes the movable limiting member and causes the movable limiting member to undergo the non-flexible deformation.

4. The guide assembly according to claim 3, characterized in that The first limiting portion has an inclined second guide surface, and the movable limiting member slides along the second guide surface to generate the non-flexible deformation.

5. The guide assembly according to claim 3, characterized in that The first limiting parts are respectively provided on both sides of the main body, and the first limiting parts on both sides of the main body are used to jointly squeeze the movable limiting part to cause the non-flexible deformation of outward expansion and energy storage.

6. The guide assembly according to claim 3, characterized in that The first limiting portion is used to squeeze the movable limiting member to cause the non-flexible deformation of outward expansion and energy storage; when the sliding clamping portion slides to the engagement position, the movable limiting member contracts to release the non-flexible deformation of outward expansion and energy storage.

7. The guide assembly according to claim 1, characterized in that The movable limiting component includes a first cantilever, a second cantilever and a connecting arm, one end of the first cantilever is movably connected to one side of the main body, the other end of the first cantilever is connected to the connecting arm, one end of the second cantilever is movably connected to the other side of the main body, the other end of the second cantilever is connected to the connecting arm, and the sliding clamping portion is arranged on the connecting arm.

8. The guide assembly according to claim 1, characterized in that The engaging portion and / or the guiding portion is provided with a second limiting portion, and the second limiting portion is used for limiting the movable stroke of the movable limiting member.

9. The guide assembly according to claim 8, characterized in that The engaging portion and / or the guiding portion is provided with a movable groove, one end of the movable limiting member is movably connected to the movable groove, and one side edge of the movable groove extends to form the second limiting portion.

10. The guide assembly according to claim 1, characterized in that The length of the guide portion along the joining direction is 6-9 cm; And / or, the guide portion is a curved structure, and the ratio of the length of the guide portion along the joining direction to the height formed by the curve is 0.8-2; And / or, one end of the guide portion away from the engaging portion is a tip structure, and an angle formed by the intersection of extended surfaces of the side surfaces on both sides of the tip structure is 10-25°.

11. The guide assembly according to claim 10, characterized in that The length of the guide portion along the joining direction is 7-8 cm; And / or, the guide portion is a curved structure, and the ratio of the length of the guide portion along the joining direction to the height formed by the curve is 1-1.5; And / or, one end of the guide portion away from the engaging portion is a tip structure, and an angle formed by the intersection of extended surfaces of the side surfaces on both sides of the tip structure is 15-20°.

12. The guide assembly according to claim 1, characterized in that The engaging portion has a guide channel. When the engaging portion is in an engaged state with the end of the actuator assembly, the guide channel is communicated with the cutting groove of the actuator assembly.

13. The guide assembly according to claim 12, characterized in that The guide channel includes a guide groove.

14. The guide assembly according to claim 12, characterized in that The end of the engagement portion away from the guide portion has two spaced engagement arms, the engagement arms are used to be plugged into the plug-in slot of the actuator assembly, and the space between the two engagement arms forms the guide channel; And / or, the joint portion is a C-shaped structure or an H-shaped structure; And / or, the engaging portion is further provided with a card interface, and when the engaging portion is in an engaged state with the end of the actuator assembly, a portion of the sliding card portion passes through the card structure and is located in the card interface.

15. A guide assembly for a surgical instrument, characterized in that: include: The body member comprises a joint portion and a guide portion, wherein the joint portion is used to be joined with the end of the actuator assembly, and the guide portion is arranged on the joint portion; A movable stopper, the movable stopper being movably connected to the engaging portion or the guiding portion, the movable stopper being provided with a sliding clamping portion, and the movable stopper being movable relative to the main body so that the engaging portion and the end of the actuator assembly can be switched between a separated state and an engaged state; The joint part has a guide channel, which extends from the end surface of the joint part away from the guide part into the joint part in the opposite direction of the joint direction. When the joint part is in a state of engagement with the end of the actuator assembly, the guide channel is connected to the tool groove of the actuator assembly.

16. The guide assembly according to claim 15, characterized in that The guide channel includes a guide groove.

17. The guide assembly according to claim 15, characterized in that The end of the engagement portion away from the guide portion has two spaced engagement arms, the engagement arms are used to connect with the plug-in slot of the actuator assembly, and the space between the two engagement arms forms the guide channel; And / or, the joint is a C-shaped structure or an H-shaped structure.

18. A surgical instrument, characterized in that: include: Handle assembly; a barrel assembly, the proximal end of the barrel assembly being connected to the handle assembly; an actuator assembly, the actuator assembly being connected to the end of the barrel assembly, the actuator assembly comprising a nail anvil and a nail magazine base, the nail anvil being movably connected to the nail magazine base, the nail anvil and the nail magazine base being able to move relative to each other to achieve closing and opening; and A guide assembly as claimed in any one of claims 1 to 17.

19. The surgical instrument according to claim 18, wherein: The end of the anvil is provided with an inserting slot, a clamping structure and a sliding guide portion, the inserting slot and the clamping structure are arranged along the length direction of the anvil, the inserting slot is located at the end of the anvil, and the sliding guide portion extends from the inserting slot to the clamping structure.

20. The surgical instrument of claim 19, wherein: The sliding guide portion is a third guide surface, and the third guide surface is parallel to the guiding direction.

21. The surgical instrument of claim 19, wherein: The anvil is further provided with a T-shaped cutting groove, and the insertion groove, the clamping structure and the cutting groove are connected in sequence; and / or the clamping structure is a circular hole perpendicular to the joining direction.

22. The surgical instrument of claim 19, wherein: The distance between the surface of one end of the movable stopper having the sliding clamping portion facing away from the joint portion and the mounting surface of the joint portion is smaller than the maximum thickness distance between the surface of the anvil facing away from the nail magazine base and the bottom surface of the insertion slot.

23. The surgical instrument of claim 18, wherein: Also included is a disassembly tool, the disassembly tool comprising: A frame body, the frame body being used to move forward and reverse along a first path relative to the guide assembly of the surgical instrument and the actuator assembly of the surgical instrument during disassembly work; A motion mechanism, wherein the motion mechanism is movably connected to the frame body, wherein the forward movement of the frame body along the first path can trigger the motion mechanism to move relative to the guide assembly along the second path, and the reverse movement of the frame body along the first path can trigger the motion mechanism to drive the guide assembly and the actuator assembly of the surgical instrument to switch from an engaged state to a disengaged state.

24. The surgical instrument of claim 23, wherein: It also includes a packaging assembly, which includes a first packaging piece and a second packaging piece. The first packaging piece is used to package the handle assembly, the barrel assembly and the actuator assembly, and the second packaging piece is used to package the guide assembly and the disassembly tool.

25. The surgical instrument of claim 24, wherein: The second package includes an outer shell and an inner liner, wherein the outer shell has an inner cavity, and the inner liner is detachably disposed in the inner cavity of the outer shell, and the inner liner is used to place at least one of the guide assembly and the removal tool.

26. The surgical instrument of claim 25, wherein: The liner is provided with a first mounting groove and a second mounting groove, wherein the first mounting groove is used for mounting the guide assembly, and the second mounting groove is used for mounting the disassembly tool.

27. The surgical instrument of claim 25, wherein: A pick-and-place structure is provided at the connection between the liner and the shell, and the pick-and-place structure is used for taking out and putting in the liner.

28. A surgical instrument, characterized in that: include: Handle assembly; a barrel assembly, the proximal end of the barrel assembly being connected to the handle assembly; an actuator assembly connected to a distal end of the barrel assembly; and The guide assembly according to any one of claims 1 to 17, wherein the guide assembly is connected to the actuator assembly; A disassembly tool, the disassembly tool is used to drive the guide assembly and the actuator assembly of the surgical instrument to switch from an engaged state to a disengaged state; as well as A packaging component, wherein the packaging component includes a second packaging component, the second packaging component is used to package the guide assembly and the disassembly tool; the second packaging component includes an outer shell and an inner liner, the outer shell has an inner cavity, the inner liner can be removably placed in the inner cavity of the outer shell, the inner liner is used to package at least one of the guide assembly and the disassembly tool, and the inner liner has a sterile environment.

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