Clip cartridge and clip applier

Abstract

According to the clip bin and the clip applier, the clip bin is provided with the limiting part, and the clip arm is provided with the convex part. The clamp is kept in a stretched state before being used, the clamp is compressed to a compressed state when being used, and when the clamp is compressed, the convex parts of the clamping arms are kept in the limiting parts, so that the clamp can be stably compressed to ensure normal use. The clip applier is provided with a limiting groove, and a clip feeding mechanism of the clip applier is provided with a concave part. In response to the movement of the clamp feeding mechanism towards the far end, the clamp feeding mechanism pushes the clamp to move from the clamp bin to the position between the two clamp arms, the convex part of the clamp falls into the concave part of the clamp feeding mechanism and reaches the position between the two clamp arms through the limiting groove, and therefore the movement of the clamp towards the far end can be limited, the clamp is prevented from turning over in the moving process, and the clamping efficiency is improved. Therefore, the clamp can stably move into the end executor.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to a clip cartridge and a clip applicator. Background Art

[0002] During a surgical procedure, it is necessary to ligate blood vessels or tissues of the human body to reduce bleeding. The method of ligating tissues or blood vessels using clips is simple and can be performed quickly. Usually, a clip applicator is used to apply the clip to the blood vessel or tissue. The clip is assembled in the clip applicator. When in use, the clip is sent to the end effector of the clip applicator, and then the end effector is aligned with the tissue or blood vessel to be clamped. The end effector is driven to close so that the clip closes, and the clip is applied to the tissue or blood vessel, thereby preventing the blood vessel or tissue from bleeding. Summary of the Invention

[0003] Embodiments of the present disclosure aim to provide a clip cartridge and a clip applicator.

[0004] The present disclosure is achieved through the following technical solutions: A clip cartridge includes a first cartridge body, a second cartridge body, and a clip. The first cartridge body and the second cartridge body are disposed opposite to each other along a first direction and are movably connected. The clip is located between the first cartridge body and the second cartridge body. The clip includes two clip arms, one of the clip arms abuts against the first cartridge body, and the other clip arm abuts against the second cartridge body. Each clip arm has a convex portion. At least one of the first cartridge body and the second cartridge body has a limiting portion, and the limiting portion is configured to accommodate the convex portion of the clip arm that abuts against the cartridge body where it is located. In response to applying a force to the first cartridge body and / or applying a force to the second cartridge body, the first cartridge body and the second cartridge body approach each other, and thus the two clip arms approach each other, so that the clip is compressed from the unfolded state to the compressed state, and the convex portion remains in the limiting portion to limit the movement of the clip arm in a second direction or a direction opposite to the second direction.

[0005] For example, the limiting portion includes two limiting surfaces, and the two limiting surfaces are disposed opposite to each other along the second direction, and the convex portion is held between the two limiting surfaces.

[0006] For example, the limiting portion has a notch portion. In response to the clip moving in a third direction to disengage from the clip cartridge, the convex portion of the clip disengages from the limiting portion via the notch portion in the third direction.

[0007] For example, the clip cartridge includes at least two clips, and at least two clips are stacked in a staggered manner along the second direction so that the convex portions of adjacent clips are staggered along the second direction. The limiting portion includes a stop wall, and the convex portion located in the limiting portion and the stop wall are arranged in sequence along the third direction. The stop wall has a notch portion. When the convex portion of the clip is aligned with the notch portion in the third direction, in response to the clip moving in the third direction to disengage from the clip bin, the convex portion located in the limiting portion disengages from the limiting portion in the third direction via the notch portion.

[0008] For example, the limiting portion further includes an abutting surface, and the abutting surface and the convex portion located in the limiting portion are arranged in sequence in the third direction; In response to applying a force to the first bin body and / or applying a force to the second bin body, the first bin body and the second bin body approach each other so that the clip is compressed from the unfolded state to the compressed state, and the abutting surface restricts the convex portion located in the limiting portion from moving in a direction opposite to the third direction.

[0009] For example, the first bin body has a first engaging member and a second engaging member, and the second bin body has a fastening portion; The clip bin has a first state and a second state; In the first state, the first engaging member is engaged with the fastening portion, and the clip is in the unfolded state; in response to applying a force to the first bin body and / or the second bin body, the first bin body and the second bin body approach each other, so that the first engaging member moves to disengage from the fastening portion and the second engaging member moves to be engaged with the fastening portion, and the clip bin switches to the second state, and the clip is compressed from the unfolded state to the compressed state.

[0010] For example, the first engaging member has a first engaging portion. In the first state, one of the clip arms of the clip abuts against the first bin body to apply a force in the first direction to the first bin body, and the other clip arm abuts against the second bin body to apply a force in a direction opposite to the first direction to the second bin body, so that the first engaging portion abuts against the fastening portion in the first direction, thereby enabling the first engaging member to be engaged with the fastening portion.

[0011] For example, the second engaging member has a second engaging portion. In the second state, the second engaging portion abuts against the fastening portion in the first direction, thereby enabling the second engaging member to be engaged with the fastening portion.

[0012] For example, the second bin body includes a groove body, and the fastening portion is arranged on the inner wall of the groove body; the first engaging member has a first engaging portion, the second engaging member has a second engaging portion, and the first engaging portion and the second engaging portion are arranged in sequence in the first direction; In the first state, the first engaging portion is inserted into the slot and abuts against the fastening portion along the first direction. In response to applying a force to the first bin and / or the second bin, the first engaging portion moves in a direction opposite to the first direction in the slot to disengage from the fastening portion, and the second engaging portion moves to be inserted into the slot and abuts against the fastening portion along the first direction.

[0013] For example, the first engaging member further includes a first arm portion extending along the first direction, the first engaging portion is disposed on the first arm portion, and the first arm portion has elasticity.

[0014] For example, the second engaging member further includes a second arm portion extending along the first direction, the second engaging portion is disposed on the second arm portion, and the second arm portion has elasticity.

[0015] For example, the clip bin includes at least two clips, and the at least two clips are stacked in a staggered manner along the second direction so that the convex portions of adjacent clips are staggered along the second direction.

[0016] For example, the clip further includes a connecting portion, and the two clip arms are connected via the connecting portion, and the connecting portion is provided with a convex portion.

[0017] For example, the convex portion of one of the clip arms abuts against the first bin, and the convex portions of the other clip arm and the connecting portion both abut against the second bin.

[0018] For example, the clip bin further includes a biasing assembly, and the biasing assembly includes a biasing member and a pushing member; one end of the biasing member is connected to the first bin or the second bin, and the other end is connected to the pushing member to bias the pushing member toward the first clip in the positive direction along the second direction and apply a force along the second direction to the clip.

[0019] For example, the clip bin has a first state and a second state; when the clip bin is in the first state, the clips are in the unfolded state; in response to applying a force to the first bin and / or the second bin, the first bin and the second bin move closer to each other so that the clip bin switches from the first state to the second state, thereby compressing the clips from the unfolded state to the compressed state; When the clip bin is in the second state, a clip cavity is formed between the first bin and the second bin, the clip cavity includes a first cavity and a second cavity arranged in sequence along the second direction, and the clip bin has an outlet communicating with the second cavity; In response to applying a force to the clip in the second cavity, the clip in the second cavity moves along a third direction via the outlet to disengage from the clip bin.

[0020] For example, the clip magazine further includes a biasing component located in the first cavity. The biasing component abuts against the first clip in the positive direction of the second direction to apply a force in the second direction to the clip. In response to the clip in the second cavity detaching from the clip magazine, the biasing component biases the clip in the first cavity to move it into the second cavity.

[0021] For example, both the first bin body and the second bin body have a first notch and a second notch. When the clip magazine is in the second state, the two first notches form the inlet of the clip magazine, and the two second notches form the outlet of the clip magazine.

[0022] The present disclosure also provides a clip applicator, including an end effector and the above-mentioned clip magazine, and the clip magazine is detachably connected to the end effector.

[0023] The present disclosure also provides a clip applicator, including: A clip magazine that houses clips. The clips have a connecting portion and two clip arms connected via the connecting portion, and the connecting portion has a convex portion; An end effector that includes a pivot member and two jaw arms pivotally connected to the pivot member. The clip magazine is detachably connected to the pivot member; the pivot member has a clip feeding channel; A limiting groove that is at least partially provided on the inner wall surrounding the clip feeding channel; A clip feeding mechanism whose distal end has a recessed portion; In response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes the clip to move distally from the clip magazine and through the clip feeding channel to between the two jaw arms. The convex portion of the clip falls into the recessed portion of the clip feeding mechanism and reaches between the two jaw arms via the limiting groove.

[0024] For example, the jaw arm has a convex portion; The clip magazine has a first inner wall and a second inner wall opposite to each other in a first direction; The convex portion of one of the jaw arms abuts against the first inner wall, and the convex portions of the other jaw arm and the connecting portion both abut against the second inner wall.

[0025] For example, the clip magazine further has a third inner wall and a fourth inner wall opposite to each other in a second direction; The limiting groove is partially provided on the fourth inner wall, and the fourth inner wall is further provided with a transition portion. One end of the transition portion extends to the second inner wall, and the other end extends into the limiting groove; In response to the clip feeding mechanism pushing the clip towards the distal end, the convex portion of the connecting portion moves along the transition portion into the limiting groove and falls into the recessed portion of the clip feeding mechanism.

[0026] For example, the inner wall of the clip feeding channel further has a first stop portion and a second stop portion; each of the clamping arms has a guiding portion; The proximal end of the first stop portion is connected to the first inner wall, and the distal end of the first stop portion is connected to the guiding portion of one of the clamping arms; the proximal end of the second stop portion is connected to the second inner wall, and the distal end of the second stop portion is connected to the guiding portion of the other clamping arm; In response to the clip feeding mechanism pushing the clip to move distally from the clip magazine, the convex portion of one of the clip arms moves sequentially along the first inner wall, the first stop portion, and the guiding portion of one of the clamping arms, and the convex portion of the other clip arm moves sequentially along the second inner wall, the second stop portion, and the guiding portion of the other clamping arm until the clip reaches the ready position in the end effector.

[0027] For example, the bottom of each of the clamping arms further has a receiving portion, and the receiving portion is located at the distal end of the guiding portion of the clamping arm where it is located; In response to the clip feeding mechanism pushing the clip to move distally from the clip magazine, the convex portion of one of the clip arms enters the receiving portion at the distal end of the guiding portion of one of the clamping arms, and the convex portion of the other clip arm enters the receiving portion at the distal end of the guiding portion of the other clamping arm, so that the clip reaches the ready position.

[0028] For example, the clip feeding mechanism includes a transmission assembly and a clip feeding block; the clip feeding block is arranged at the distal end of the transmission assembly, and the recessed portion is arranged on the clip feeding block; in response to the transmission assembly moving distally, the clip feeding block pushes the clip to move distally.

[0029] For example, when the clip is in the ready position, in response to the closing of the end effector, the clip is compressed, and the convex portion of the connecting portion is located on the distal side of the clip feeding channel.

[0030] For example, at least two clips are stacked in the clip magazine in a staggered manner along the second direction, and the convex portions of adjacent clips are staggered along the second direction.

[0031] For example, at least two clips are stacked in the clip magazine along the second direction; The clip magazine has a clip cavity, and the clip cavity includes a first cavity and a second cavity arranged in sequence along the second direction; one of the clips is received in the second cavity, and the remaining clips are received in the first cavity; The second cavity is in communication with the clip feeding channel. In response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes the clip in the second cavity to move distally from the clip magazine and move through the clip feeding channel to between the two jaw arms.

[0032] For example, the clip magazine includes a magazine body, and at least two clips are stacked in the magazine body along a second direction; the clip magazine further includes a biasing assembly, and the biasing assembly includes a biasing member and a pushing member; one end of the biasing member is connected to the magazine body, and the other end is connected to the pushing member to bias the pushing member towards the first clip in the positive direction along the second direction.

[0033] The present disclosure also provides a clip applicator, including: A clip magazine, the clip magazine includes at least two clips, the clip has a connecting portion and two jaw arms connected via the connecting portion, and both the jaw arms and the connecting portion have convex portions; at least two clips are stacked staggeredly along a second direction so that the convex portions of adjacent clips are staggered along the second direction; An end effector, the end effector includes a pivot member and two jaw arms pivotally connected to the pivot member, and the clip magazine is detachably connected to the pivot member; the pivot member has a clip feeding channel; A limiting groove, the limiting groove is at least partially arranged on the inner wall surrounding the clip feeding channel; A clip feeding mechanism, the clip feeding mechanism is configured to drive the clip to move; In response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes the clip to move distally from the clip magazine and move through the clip feeding channel to between the two jaw arms, and the convex portion of the connecting portion of the clip reaches between the two jaw arms via the limiting groove.

[0034] For example, the distal end of the clip feeding mechanism has a recess; in response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes the clip to move distally from the clip magazine and move through the clip feeding channel to between the two jaw arms, and the convex portion of the clip falls into the recess of the clip feeding mechanism and reaches between the two jaw arms via the limiting groove.

[0035] For example, the clip magazine has a first inner wall and a second inner wall opposite to each other along a first direction; The convex portion of one of the jaw arms abuts against the first inner wall, and the convex portions of the other jaw arm and the connecting portion both abut against the second inner wall.

[0036] For example, the clip magazine further has a third inner wall and a fourth inner wall opposite to each other along a second direction; The limiting groove portion is provided on the fourth inner wall, and a transition portion is further provided on the fourth inner wall. One end of the transition portion extends to the second inner wall, and the other end extends into the limiting groove. In response to the clip feeding mechanism pushing the clip to move distally, the convex portion of the connecting portion moves along the transition portion into the limiting groove.

[0037] For example, the inner wall of the clip feeding channel further has a first stop portion and a second stop portion; each of the clamp arms has a guiding portion. The proximal end of the first stop portion is connected to the first inner wall, and the distal end of the first stop portion is connected to the guiding portion of one of the clamp arms; the proximal end of the second stop portion is connected to the second inner wall, and the distal end of the second stop portion is connected to the guiding portion of the other clamp arm. In response to the clip feeding mechanism pushing the clip to move distally from the clip magazine, the convex portion of one of the clip arms sequentially moves along the first inner wall, the first stop portion, and the guiding portion of one of the clamp arms, and the convex portion of the other clip arm sequentially moves along the second inner wall, the second stop portion, and the guiding portion of the other clamp arm until the clip reaches the ready position in the end effector.

[0038] For example, the bottom of each of the clamp arms further has a receiving portion, and the receiving portion is located at the distal end of the guiding portion of the clamp arm where it is located. In response to the clip feeding mechanism pushing the clip to move distally from the clip magazine, the convex portion of one of the clip arms enters the receiving portion at the distal end of the guiding portion of one of the clamp arms, and the convex portion of the other clip arm enters the receiving portion at the distal end of the guiding portion of the other clamp arm, so that the clip reaches the ready position.

[0039] For example, the clip feeding mechanism includes a transmission assembly and a clip feeding block; the clip feeding block is provided at the distal end of the transmission assembly, and the recessed portion is provided on the clip feeding block; in response to the transmission assembly moving distally, the clip feeding block pushes the clip to move distally.

[0040] For example, when the clip is in the ready position, in response to the end effector closing, the clip is compressed, and the convex portion of the connecting portion is located on the distal side of the clip feeding channel.

[0041] For example, at least two clips are stacked in the clip magazine in a staggered manner along the second direction, and the convex portions of adjacent clips are staggered along the second direction.

[0042] For example, at least two clips are stacked in the clip magazine along the second direction. The clip bin has a clip cavity, and the clip cavity includes a first cavity and a second cavity arranged in sequence along the second direction; one of the clips is received in the second cavity, and the remaining clips are received in the first cavity; The second cavity is in communication with the clip feeding channel. In response to the clip feeding mechanism moving towards the distal end, the clip feeding mechanism pushes the clip in the second cavity to move distally from the clip bin and move to between the two jaw arms via the clip feeding channel.

[0043] For example, at least two of the clips are stacked in the clip bin along the second direction; the clip bin further includes a biasing assembly, and the biasing assembly includes a biasing member and a pushing member; one end of the biasing member is connected to the clip bin, and the other end is connected to the pushing member to bias the pushing member towards the first clip in the positive direction along the second direction. Description of the Drawings

[0044] Figure 1 is a schematic structural diagram of the clip bin provided in some embodiments of the present disclosure from a first angle, where the clip bin is in a second state; Figure 2 is a schematic structural diagram of the clip bin provided in some embodiments of the present disclosure from a second angle, where the clip bin is in a second state; Figure 3 is a schematic structural diagram of the clip bin provided in some embodiments of the present disclosure from a first angle, where the clip bin is in a first state; Figure 4 is a schematic structural diagram of the clip bin provided in some embodiments of the present disclosure from a second angle, where the clip bin is in a first state; Figure 5 is a schematic structural diagram of the clip bin provided in some embodiments of the present disclosure from a third angle, where the clip bin is in a second state; Figures 6 - 8 is a schematic structural diagram of the first bin body of the clip bin provided in some embodiments of the present disclosure; Figures 9 - 10 is a schematic structural diagram of the second bin body of the clip bin provided in some embodiments of the present disclosure; Figures 11 - 12 is a schematic structural diagram of the clips stacked in the clip bin provided in some embodiments of the present disclosure; Figure 13 is a schematic structural diagram of the biasing assembly of the clip bin provided in some embodiments of the present disclosure; Figure 14 is a schematic structural diagram of the clip bin provided in some embodiments of the present disclosure from a fourth angle, where the clip bin is in a second state; Figure 15 is a schematic structural diagram of the clip bin provided in some embodiments of the present disclosure from a third angle, where the clip bin is in a first state; Figure 16 is a schematic structural view of a clip applicator provided in some other embodiments of the present disclosure; Figure 17 is a schematic structural view of a partial area of a clip applicator provided in some other embodiments of the present disclosure; Figures 18 - 19 is a schematic structural view of a pivot member of a clip applicator provided in some other embodiments of the present disclosure; Figure 20 is a schematic structural view of a first jaw of a clip applicator provided in some other embodiments of the present disclosure; Figures 21 - 29 is a cross-sectional view of a partial area of a clip applicator provided in some other embodiments of the present disclosure; Figure 30 is a partial area view of a clip applicator provided in some other embodiments of the present disclosure, wherein a partial housing is removed to facilitate showing the internal structure; Figure 31 is a schematic structural view of a partial area of a clip applicator provided in some other embodiments of the present disclosure, mainly for showing the transmission mechanism; Figure 32 is Figure 31 a cross-sectional view of; Figures 33 - 34 is a schematic structural view of a partial area of a clip applicator provided in some other embodiments of the present disclosure, mainly for showing the transmission mechanism; Figure 35 is a schematic structural view of a base of a clip applicator provided in some other embodiments of the present disclosure; Figure 36 is a schematic structural view of a clip feeding mechanism of a clip applicator provided in some other embodiments of the present disclosure; Figures 37 - 38 is a schematic view of a mechanism of a handle of a clip applicator provided in some other embodiments of the present disclosure; Figure 39 is a schematic structural view of a guiding pivot member provided in some other embodiments of the present disclosure; Figure 40 is a schematic structural view of a guiding channel provided in some other embodiments of the present disclosure; Figure 41 is a schematic view of the cooperation between a wrench and a path switching member provided in some other embodiments of the present disclosure; Figure 42 is Figure 37 another angle of; Figure 43 is a schematic structural view of a path switching member provided in some other embodiments of the present disclosure; Figure 44 is a schematic structural view of another angle of a path switching member provided in some other embodiments of the present disclosure; Figure 45 Schematic structural diagram of the first head housing provided in some other embodiments of the present disclosure; Figure 46 State diagram of the path switching member provided in some other embodiments of the present disclosure, wherein when the actuator is in the open position; Figure 47 State diagram of the path switching member provided in some other embodiments of the present disclosure, wherein before the actuator moves from the open position to the closed position; Figure 48 State diagram of the path switching member provided in some other embodiments of the present disclosure, wherein when the actuator is in the closed position; Figure 49 State diagram of the path switching member provided in some other embodiments of the present disclosure, wherein before the actuator resets and reaches the open position; Reference numerals of the above drawings: 1 - Cartridge; 100 - First housing; 1010 - Limiting surface; 1011 - Stopping wall; 1012 - Notch portion; 1013 - Abutting surface; 102 - First engaging member; 1020 - First arm portion; 10201 - Avoidance opening; 1021 - First engaging portion; 103 - Second engaging member; 1030 - Second arm portion; 1031 - Second engaging portion; 104 - First switching guide sleeve; 110 - Second housing; 111 - Installation groove; 112 - Sliding groove; 113 - Buckling portion; 114 - Second switching guide sleeve; 115 - Switching guide post; 121 - First cavity; 122 - Second cavity; 131 - Biasing member; 132 - Pushing member; 1320 - Pushing portion; 1321 - Restraining portion; 133 - Connecting plate; 141 - First inner wall; 142 - Second inner wall; 144 - Fourth inner wall; 1440 - Transition portion; 145 - Inlet; 146 - Outlet; 151 - Snap; 1510 - Snap arm; 1511 - Buckle body; 152 - Insert block; 2 - Clip; 200 - First clip arm; 201 - First protrusion; 202 - Hook; 210 - Second clip arm; 211 - Second protrusion; 220 - Connecting portion; 221 - Third protrusion; 231 - First clip; 232 - Second clip; 233 - Third clip; 3 - End effector; 300 - Hinge member; 301 - Clip feeding channel; 302 - First stop portion; 303 - Second stop portion; 304 - Buckling portion; 305 - Insertion portion; 310 - First jaw arm; 320 - Second jaw arm; 330 - Jaw arm reset member; 340 - Guide portion; 350 - Accommodating portion; 400 - Clip - driving tube; 401 - Sleeve; 402 - Opening structure; 403 - Clip - resetting member; 404 - Rod body; 4040 - Sliding groove; 4042 - Pushing portion; 405 - Connecting portion; 410 - Clip - feeding driving tube; 4100 - Annular groove; 411 - Clip - feeding rod; 412 - Elastic rod; 413 - Clip - feeding block; 414 - Concave portion; 415 - Clip - feeding resetting member; 420 - Base; 421 - Through - hole; 422 - Waist - shaped hole; 423 - Socketing portion; 424 - Abutting portion; 430 - Guide post; 441 - Cylinder; 442 - Stopper; 443 - Locking block; 444 - Elastic element; 450 - Pushing post; 460 - Base - resetting member; 501 - First guiding surface; 502 - Second guiding surface; 600 - Guiding pivot member; 601 - First anti - retreat portion; 602 - Second anti - retreat portion; 603 - Third anti - retreat portion; 6011 - Guiding surface; 6012 - Anti - retreat surface; 604 - Pivoting portion; 605 - Guiding portion; 606 - Force - receiving portion; 610 - Biasing spring; 620 - Guide member; 700 - Handle housing; 710 - Wrench; 711 - Wrench body; 712 - Holding portion; 713 - Pushing claw; 714 - Pivoting end; 720 - Guiding channel; 721 - Starting point; 722 - First anti - retreat point; 723 - Second anti - retreat point; 724 - Third anti - retreat point; 725 - End point; 726 - Main channel; 7260 - First wall; 7261 - Second wall; 7262 - Opening portion; 727 - Sub - channel; 7270 - Blocking wall; 7271 - Guiding wall; 8 - Path - switching member; 800 - Pivoting portion; 801 - First triggering portion; 802 - Second triggering portion; 803 - Executing portion; 8030 - Baffle; 901 - First guiding rib; 9011 - First guiding inclined surface; 902 - Second guiding rib; 9021 - Second guiding inclined surface; 911 - Protruding portion; 912 - First concave portion; 913 - Second concave portion; 10 - Limiting groove; 1100 - Main shaft; 1102 - Retaining ring; 12 - First pin shaft; 13 - Second pin shaft; 14 - First head housing Detailed implementation manners

[0045] In order to make the objectives, technical solutions and advantages of the present disclosure more clear and understandable, the present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts fall within the scope of protection of the present disclosure.

[0046] It should be understood that the terms "proximal", "posterior", "distal", and "anterior" used herein are relative to the clinician manipulating the handle assembly of the clip applicator. The terms "proximal" and "posterior" refer to the parts closer to the clinician, while the terms "distal" and "anterior" refer to the parts farther from the clinician. That is, the handle assembly is the proximal end, and the end effector is the distal end. For example, the proximal end of a component refers to the end relatively closer to the handle assembly, and the distal end refers to the end relatively closer to the end effector. However, the clip applicator can be used in many directions and positions, so these terms expressing relative positional relationships are not restrictive and absolute.

[0047] In this disclosure, unless otherwise clearly specified and defined, terms such as "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a movable connection, or integrated; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components such as abutment. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances. It should be noted that when there are limited modifiers before "connected" and "coupled", they have the meanings defined by the corresponding limited modifiers, only excluding the obvious cases to be excluded, not excluding other possible cases. For example, "detachably connected" refers to a detachable connection, excluding being integrated, but a movable connection, etc. is not excluded.

[0048] The term "axial direction" refers to the length direction of the shaft assembly.

[0049] Taking Figure 1 the placement direction and angle of the middle clip cartridge 1 as a reference, the first direction is the up-and-down direction, and the positive direction of the first direction is from top to bottom. The second direction is the direction perpendicular to the paper surface and is the direction towards the paper surface. The third direction is the left-and-right direction, and the positive direction of the third direction is from right to left.

[0050] When using the clip applicator, generally, the clip applicator needs to be sent into the human body through the cannula of the trocar for clip application. Therefore, the volume setting of the clip cartridge should avoid affecting the entry of the clip applicator into the cannula of the trocar. Limited by the size of the cannula of the trocar, the volume of the clip cartridge is generally small, and the small volume of the clip cartridge causes the clips assembled therein to be compressed.

[0051] The clips will be compressed for a period of time from the moment they are assembled into the clip cartridge until they are used. This compression during this period causes the clips to still have a tendency to maintain the compressed shape when they are pushed into the end effector, which has a certain impact on their use.

[0052] To avoid the influence of the clip bin on the compression time of the clip for too long and affecting the use of the clip, the clip bin can be set as compressible. Before use, the clip bin is in an uncompressed state, so that the clip assembled in the clip bin can be in a stretched state. During use, after compressing the clip bin, it is installed on the clip applicator, so that the volume of the clip bin is reduced to enable the clip applicator to smoothly enter the cannula of the puncture device. The compression of the clip bin compresses the clip assembled therein. Since the time for the clip to be compressed in the clip bin is short, the clip can return to the stretched state when it moves to the end effector of the clip applicator, enabling the clip to be used normally and ensuring the normal clip application of the clip applicator.

[0053] However, when using a compressible clip bin, during the process of compressing the clip bin, it may cause unexpected twisting deformation of the clip, resulting in the clip being unusable.

[0054] Please refer to Figures 1 - 5 , an embodiment of the present disclosure provides a clip bin 1, which includes a first bin body 100, a second bin body 110, and a clip 2. The first bin body 100 and the second bin body 110 are oppositely arranged along a first direction and are movably connected. The clip 2 is located between the first bin body 100 and the second bin body 110. The clip 2 includes two clip arms, one of the clip arms abuts against the first bin body 100, and the other clip arm abuts against the second bin body 110. Each clip arm has a convex portion.

[0055] At least one of the first bin body 100 and the second bin body 110 has a limiting portion, and the limiting portion is configured to accommodate the convex portion of the clip arm that abuts against the bin body where it is located. In response to applying a force to the first bin body 100 and / or the second bin body 110, the first bin body 100 and the second bin body 110 move relative to each other to move closer to each other, so that the two clip arms move closer to each other, and the convex portion is held in the limiting portion to limit the movement of the clip arm along a second direction or the direction opposite to the second direction, so that the clip 2 is compressed from the stretched state to the compressed state.

[0056] The stretched state means that the two clip arms of the clip 2 are slightly compressed so that they are basically in a natural diastolic state. The slight compression of the two clip arms will not affect their performance. The slight compression of the two clip arms of the clip 2 causes one of the clip arms of the clip 2 to apply a force to the first bin body 100 to abut against it, and the other clip arm of the clip 2 to apply a force to the second bin body 110 to abut against it. The compressed state means that the two clip arms of the clip 2 are close to each other but not engaged.

[0057] The clip 2 remains in the stretched state before use. During use, a force is applied to the first bin body 100 and / or the second bin body 110 again, so that the clip 2 is compressed from the stretched state to the compressed state. Thus, the time for the clip 2 to be compressed is reduced, enabling the clip 2 to return to the stretched state when it moves to the end effector 3 of the clip applicator, so that the clip 2 can be used normally and ensure the normal clip application of the clip applicator.

[0058] When the two bin bodies approach each other, the convex part of the clamping arm is held in the limiting part to restrict the movement of the clamping arm in the second direction or the direction opposite to the second direction, avoiding unexpected twisting deformation of the clamping arm of the clip 2, so that the clip 2 can be stably compressed to ensure its normal use.

[0059] Applying a force to the first bin body 100 and / or the second bin body 110 means that the operator can apply a force to the first bin body 100 and the second bin body 110 simultaneously, or apply a force to one of them. For example, the operator holds the clip bin 1 in the hand and presses the first bin body 100 and the second bin body 110 simultaneously with fingers or palms, or places one of the first bin body 100 and the second bin body 110 of the clip bin 1 on an end face and presses the other one of the first bin body 100 and the second bin body 110 with the hand.

[0060] Reference Figures 6 - 8 , the limiting part includes two limiting surfaces 1010, the two limiting surfaces 1010 are arranged opposite to each other in the second direction, and the convex part of the clamping arm is held between the two limiting surfaces 1010. In response to applying a force to the first bin body 100 and / or the second bin body 110, when the first bin body 100 and the second bin body 110 move relative to each other and approach each other, the convex part moves between the two limiting surfaces 1010. Due to the stopping effect of the limiting surface 1010, the convex part can only move in the third direction relative to the first bin body, thus avoiding unexpected twisting deformation of the clamping arm of the clip 2.

[0061] Reference Figures 6 - 7 and Figures 9 - 10 , the clip bin 1 includes at least two clips 2, the at least two clips 2 are stacked in a staggered manner in the second direction, and the convex parts of adjacent clips 2 are staggered in the second direction. The convex parts are all located in the limiting part, one of the limiting surfaces 1010 abuts against the convex part of one of the clips 2, and the other limiting surface 1010 abuts against the convex part of the other clip 2.

[0062] The limiting part also has a notch part 1012. In response to the clip 2 moving in the third direction to disengage from the clip bin 1, the convex part of the clip 2 disengages from the limiting part in the third direction via the notch part 1012. Thus, when using a clip applicator, the limiting part does not restrict the clip 2 from disengaging from the clip bin 1.

[0063] Reference Figures 7 - 8 , the limiting part includes a stop wall 1011, the convex part located in the limiting part and the stop wall 1011 are arranged in sequence in the third direction, and thus the stop wall 1011 can restrict the convex part of the clip 2 from disengaging from the limiting part in the third direction. The stop wall 1011 has the above-mentioned notch part 1012. When the convex part of the clip 2 is aligned with the notch part 1012 in the third direction, in response to the clip 2 moving in the third direction to disengage from the clip bin 1, the convex part located in the limiting part disengages from the limiting part in the third direction via the notch part 1012.

[0064] When the clips 2 are stacked in the clip magazine 1 and the convex part of one of the clips 2 aligns with the notch part 1012, the remaining clips 2 align with the stop wall 1011 in the third direction. Thus, the convex parts of the remaining clips 2 will not disengage from the limiting part. After the clip 2 whose convex part aligns with the notch part 1012 disengages from the clip magazine 1, the remaining clips 2 move until their convex parts align with the notch part 1012, so that they can disengage from the limiting part via the notch part 1012.

[0065] The clip magazine 1 has a first state and a second state. Refer to Figures 3 - 4 , before use, the clip magazine 1 remains in the first state. In the first state, the first magazine body 100 of the clip magazine 1 is movably connected to the second magazine body 110, and the clips 2 are in a stretched state in the clip magazine 1. Refer to Figures 1 - 2 , during use, in response to applying a force to the first magazine body 100 and / or the second magazine body 110, the first magazine body 100 and the second magazine body 110 move relative to each other to approach each other, so that the clips 2 are compressed from the stretched state to the compressed state, and the clip magazine 1 switches to the second state. When the clip magazine 1 switches from the first state to the second state, the stacking manner of the clips 2 in the clip magazine 1 does not change, only the form of the clips 2 changes, that is, they are compressed from the stretched state to the compressed state.

[0066] Refer to Figure 6 and Figure 8 , the limiting part further includes a resisting surface 1013, and the resisting surface 1013 is disposed opposite to the stop wall 1011 in the third direction.

[0067] The resisting surface and the convex part located in the limiting part are arranged in sequence in the third direction. In response to applying a force to the first magazine body and / or applying a force to the second magazine body, the first magazine body and the second magazine body approach each other to compress the clip from the stretched state to the compressed state, and the clip magazine 1 switches from the first state to the second state. The resisting surface restricts the convex part located in the limiting part from moving in the direction opposite to the third direction, so that the convex part of the clip 2 can be limited, and the stability of compressing the clip 2 is further improved.

[0068] In some embodiments, when the clip magazine 1 is in the first state, the resisting surface 1013 abuts against the convex part of the clip 2 located in the limiting part in the third direction to restrict the convex part from moving in the third direction, so that the stability of loading the clip 2 in the clip magazine 1 can be further improved, and the stability of compressing the clip 2 is improved.

[0069] In some embodiments, when the clip magazine 1 is in the first state, there is a small gap between the resisting surface 1013 and the convex part of the clip 2 located in the limiting part in the third direction, which can restrict the convex part from moving in the third direction, further improve the stability of loading the clip 2 in the clip magazine 1, and improve the stability of compressing the clip 2.

[0070] At least two clips 2 are stacked in a staggered manner along a second direction such that the convex portions of the at least two clips 2 are staggered along the second direction. Refer to Figure 6 and Figure 8 , the abutting surface 1013 extends obliquely to adapt to the arrangement of the convex portions of the clips 2, so that the abutting surface 1013 can abut against the convex portions of each clip 2.

[0071] Both the first bin body 100 and the second bin body 110 have a first notch and a second notch. When the clip bin 1 is in the second state, the two first notches form an inlet 145 of the clip bin 1, and the two second notches form an outlet 146 of the clip bin 1. Among them, the notch portion 1012 of the second bin body 110 constitutes a part of its second notch.

[0072] Refer to Figure 10 , one end of the clip bin 1 along a third direction is provided with an inlet 145, and the other end opposite thereto along the third direction is provided with an outlet 146. A force can be applied to the clips 2 in the clip bin 1 through the inlet 145, so that the clips 2 are separated from the clips 2 at the outlet 146 of the clip bin 1.

[0073] Refer to Figure 10 , when the clip bin 1 is in the second state, a clip cavity is formed between the first bin body 100 and the second bin body 110 to accommodate the clips 2. The clip cavity includes a first cavity 121 and a second cavity 122 that are sequentially arranged and communicated along the second direction. At least two clips 2 are stacked in a staggered manner along the second direction in the clip cavity of the clip bin 1, one of the clips 2 is accommodated in the second cavity 122, and the remaining clips 2 are accommodated in the first cavity 121.

[0074] Both the inlet 145 and the outlet 146 of the clip bin 1 communicate with the second cavity 122. In response to applying a force to the clip 2 in the second cavity 122, the clip 2 in the second cavity 122 moves along the third direction through the outlet 146 until it separates from the clip bin 1. After the clip 2 in the second cavity 122 separates from the clip bin 1, the clip 2 in the first cavity 121 sequentially enters the second cavity 122 along the second direction.

[0075] In some embodiments, the clip bin 1 further includes a biasing assembly. The biasing assembly abuts against the first clip 2 in the positive second direction to apply a force along the second direction to the clip 2. In response to the clip 2 in the second cavity 122 separating from the clip bin 1, the biasing assembly biases the clip 2 in the first cavity 121 to move it along the second direction into the second cavity 122. The above-mentioned acting force also helps the clip 2 to be stably clamped in the clip bin 1.

[0076] In some embodiments, the biasing assembly is disposed in the first cavity 121 of the clip bin 1.

[0077] The number of clips 2 in clip magazine 1 does not affect the normal use of clip magazine 1. During the operation, generally three clips 2 are applied to the object to be clamped in a continuous clamping process. In the embodiment of the present disclosure, clip magazine 1 includes three clips 2.

[0078] Taking Figure 10 the placement direction and angle of clip magazine 1 in [reference] as a reference, the first cavity 121 is arranged above the second cavity 122. The three clips 2 of clip magazine 1 are, from top to bottom, clip 231, clip 232, and clip 233. In the initial state, both clip 231 and clip 232 are arranged in the first cavity 121, and clip 233 is arranged in the second cavity 122.

[0079] After clip 233 detaches from clip magazine 1, the biasing assembly pushes against clip 231 and clip 232, causing clip 231 and clip 232 to move in the second direction. Clip 232 enters the second cavity 122, and clip 231 remains in the first cavity 121. When clip 232 detaches from clip magazine 1, the biasing assembly then pushes clip 231 into the second cavity 122.

[0080] Clip magazine 1 includes a magazine body. Referring to Figures 9 - 10 and Figure 13 , the biasing assembly includes a biasing member 131 and a pushing member 132. One end of the biasing member 131 is connected to the magazine body, and the other end is connected to the pushing member 132 to bias the pushing member 132 toward the first clip 2 in the positive direction of the second direction. Clip 231 is the first clip 2 in the positive direction of the second direction. For example, the biasing member 131 is a spring. The magazine body includes a first magazine body 100 and a second magazine body 110. One end of the biasing member 131 is connected to the first magazine body 100 or the second magazine body 110. For example, one end of the biasing member 131 is connected to the second magazine body 110 of clip magazine 1.

[0081] Referring to Figure 13 , the pushing member 132 includes a connected pushing portion 1320 and a constraining portion 1321. The pushing portion 1320 extends in the third direction and abuts against the first clip 2 in the positive direction of the second direction. The constraining portion 1321 extends in the second direction to limit the movement of the biasing member 131. The constraining portion 1321 can partially surround the biasing member 131 or completely surround the biasing member 131 in the second direction. For example, the constraining portion 1321 is a cylindrical shape adapted to the shape of the biasing member 131.

[0082] Referring to Figures 9 - 10 and Figure 13 , the biasing assembly further includes a connection plate 133. One end of the biasing member 131 is connected to clip magazine 1 via the connection plate 133. For example, one end of the biasing member 131 is welded to the connection plate 133, and the connection plate 133 is installed on clip magazine 1. Referring to Figures 9 - 10, the clip bin 1 has two mounting grooves 111. One end of the connecting plate 133 in the third direction is clamped in one of the mounting grooves 111, and the other end of the connecting plate 133 in the third direction is clamped in the other mounting groove 111. One end of each mounting groove 111 in the second direction has an opening to facilitate inserting the connecting plate 133 into the mounting groove 111 in the second direction. After the connecting plate 133 is inserted into the mounting groove 111, relying on the friction between the two, the connecting plate 133 will not come out of the opening.

[0083] Reference Figures 11 - 12 , the two clamping arms of the clip 2 are the first clamping arm 200 and the second clamping arm 210. The first clamping arm 200 and the second clamping arm 210 can pivot relative to each other around the connecting portion 220. Reference Figure 14 , when the clip 2 is received in the clip bin 1, the first clamping arm 200 abuts against the first bin body 100, and the second clamping arm 210 abuts against the second bin body 110. The first clamping arm 200, the second clamping arm 210 and the connecting portion 220 all have convex parts. For the convenience of clear description, the convex parts of different parts of the clip 2 are defined as the first convex part 201, the second convex part 211 and the third convex part 221 respectively.

[0084] The first clamping arm 200, the second clamping arm 210 and the connecting portion 220 all have side walls. Reference Figures 11 - 12 , one end of the first clamping arm 200 away from the connecting portion 220 has a hook 202. A first convex part 201 is provided near the hook 202 of the first clamping arm 200. Both ends of the first convex part 201 protrude relative to the two side walls of the first clamping arm 200 respectively. One end of the second clamping arm 210 away from the connecting portion 220 has two second convex parts 211. One second convex part 211 is provided on one side wall of the second clamping arm 210, and the other second convex part 211 is provided on the opposite side wall of the second clamping arm 210. There is a third convex part 221 at the connecting portion 220. Both ends of the third convex part 221 protrude relative to the two side walls of the connecting portion 220 respectively.

[0085] Taking Figure 11 the angle as a reference and combining Figure 12 , the stacking method of the clip 2 in the clip bin 1 is as follows: The second convex part 211 of the clip 231 located above abuts against the inner wall of the clip bin 1, and the second convex part 211 located below abuts against the side wall of the second clamping arm 210 of the clip 232. The upper end of the first convex part 201 of the clip 231 abuts against the inner wall of the clip bin 1. The upper end of the third convex part 221 of the clip 231 abuts against the inner wall of the clip bin 1.

[0086] The second convex part 211 located below of the clip 232 abuts against the side wall of the second clamping arm 210 of the clip 233. The upper end of the first convex part 201 of the clip 232 abuts against the side wall of the first clamping arm 200 of the clip 231. The upper end of the third convex part 221 of the clip 232 abuts against the side wall of the connecting part 220 of the clip 231.

[0087] The second convex part 211 located below of the clip 233 abuts against the inner wall of the cartridge 1. The upper end of the first convex part 201 of the clip 233 abuts against the side wall of the first clamping arm 200 of the clip 232, and the lower end of the first convex part 201 abuts against the inner wall of the cartridge 1. The upper end of the third convex part 221 of the clip 233 abuts against the side wall of the connecting part 220 of the clip 232, and the lower end of the third convex part 221 abuts against the inner wall of the cartridge 1.

[0088] The clips 231, 232, and 233 are stacked along the second direction, thereby saving space and making the occupied space of the cartridge 1 smaller. The convex parts of adjacent clips 2 are offset in the second direction, so that the convex parts of adjacent clips 2 can avoid each other, further reducing the occupied space of the stacked clips 2, and enabling the clips 2 to be stably stacked in the cartridge 1 without tipping over.

[0089] The convex part of one of the clamping arms of the clip 2 abuts against the first housing 100, and the convex parts of the other clamping arm and the connecting part 220 abut against the second housing 110. For example, the convex part of the first clamping arm 200 abuts against the first housing 100, and the convex parts of the second clamping arm 210 and the connecting part 220 abut against the second housing 110. When the cartridge 1 is in the first state, in response to the first housing 100 and the second housing 110 approaching each other, the attitude of the second clamping arm 210 remains substantially unchanged, and the first clamping arm 200 rotates towards the second clamping arm 210, so that the clip 2 can be stably compressed to the compressed state.

[0090] The first housing 100 has a first engaging member 102 and a second engaging member 103, and the second housing 110 has a fastening portion 113. When the cartridge 1 is in the first state, the first engaging member 102 is engaged with the fastening portion 113, and the clip is in the extended state. In response to applying a force to the first housing 100 and / or the second housing 110, the first housing 100 and the second housing 110 move relative to each other to approach each other, so that the first engaging member 102 moves to disengage from the fastening portion 113 and the second engaging member 103 moves to engage with the fastening portion 113, and the cartridge 1 switches to the second state, and the clip 2 is compressed from the extended state to the compressed state.

[0091] By providing the first engaging member 102 or the second engaging member 103 to be engaged with the fastening portion 113, the first housing 100 and the second housing 110 can be stably connected in both the first state and the second state, thereby enabling the cartridge 1 to be stably maintained in the first state or the second state.

[0092] The first engaging member 102 has a first engaging portion 1021. When the cartridge 1 is in the first state, the first clamping arm 200 of the clip 2 abuts against the first housing body 100 to apply a force along the first direction to the first housing body 100, and the second clamping arm 210 abuts against the second housing body 110 to apply a force along the direction opposite to the first direction to the second housing body 110, so that the first engaging portion 1021 abuts against the fastening portion 113 along the first direction, thereby enabling the first engaging member 102 to be clamped with the fastening portion 113.

[0093] Taking Figure 4 as a reference, the first engaging portion 1021 is located above the fastening portion 113. The elastic force of the clip 2 itself causes the two clamping arms of the clip 2 to apply forces to the first housing body 100 and the second housing body 110 respectively, so that the first engaging portion 1021 has a tendency to move downward relative to the second housing body 110, and the fastening portion 113 has a tendency to move upward relative to the first housing body 100. Thus, the first engaging portion 1021 abuts against the fastening portion 113, and the first engaging member 102 and the fastening portion 113 can be stably clamped.

[0094] The second engaging member 103 has a second engaging portion 1031. When the cartridge 1 is in the second state, the second engaging portion 1031 abuts against the fastening portion 113 along the first direction, thereby enabling the second engaging member 103 to be stably clamped with the fastening portion 113. Taking Figure 5 as a reference, the elastic force of the clip 2 causes the first housing body 100 to have a tendency to move downward relative to the second housing body 110, and the second housing body 110 to have a tendency to move upward relative to the first housing body 100. The second engaging portion 1031 is located above the fastening portion 113, and the second engaging portion 1031 abuts against the fastening portion 113 along the first direction. Thus, to overcome the elastic force of the clip 2 and limit the movement of the first housing body 100 and the second housing body 110 away from each other, so that the cartridge 1 is stably maintained in the second state.

[0095] Referring to Figure 2 and Figures 4 - 5 , the second housing body 110 includes a sliding groove 112. The fastening portion 113 is provided on the inner wall of the sliding groove 112. Referring to Figure 4 , the first engaging portion 1021 and the second engaging portion 1031 are arranged in sequence along the first direction. Referring to Figures 4 - 5 , in the first state, the first engaging portion 1021 is inserted into the sliding groove 112 and abuts against the fastening portion 113 along the first direction. In response to applying a force to the first housing body 100 and / or the second housing body 110, the first engaging portion 1021 moves in the direction opposite to the first direction in the sliding groove 112 to disengage from the fastening portion 113, and the second engaging portion 1031 moves to be inserted into the sliding groove 112 and abuts against the fastening portion 113 along the first direction.

[0096] The sliding groove 112 extends in the first direction. Taking Figure 4 as a reference and combining with Figure 5 , the sliding groove 112 has two opposite side walls in the first direction, and the fastening portion 113 is provided on the relatively lower side wall of the sliding groove 112. Referring to Figure 4 , in the first state, the first engaging portion 1021 is inserted into the sliding groove 112 and abuts against the fastening portion 113 in the first direction, and the second engaging portion 1031 is located outside the sliding groove 112. Referring to Figure 5 , in the second state, the first engaging portion 1021 remains inserted into the sliding groove 112 and is located above the fastening portion 113, and the second engaging portion 1031 is inserted into the sliding groove 112 and abuts against the fastening portion 113.

[0097] Referring to Figures 4 - 6 and Figure 8 , the first engaging member 102 further includes a first arm portion 1020 extending in the first direction, and the first engaging portion 1021 is provided on the first arm portion 1020. The extending direction of the first engaging portion 1021 and the extending direction of the first arm portion 1020 form an included angle, and the included angle includes 90°. The first arm portion 1020 has elasticity. Thus, during the process of preparing the cartridge 1 before leaving the factory, when connecting and installing the first housing 100 and the second housing 110, a force is applied to the first housing 100 and / or the second housing 110, and the first arm portion 1020 deforms, so that the first engaging portion 1021 abuts against the fastening portion 113.

[0098] The first housing 100 has at least two first engaging members 102. For example, the second housing 110 has opposite first and second sides in the third direction, and the second housing 110 has opposite third and fourth sides in the second direction. Referring to Figures 6 - 8 , the first housing 100 has four first engaging members 102. Referring to Figures 4 - 5 , two of the first engaging members 102 are respectively provided on the first side and the second side of the second housing 110, and their first arm portions 1020 are both partially located inside the first housing 100, and their first engaging portions 1021 both extend from their respective first arm portions 1020 through the sliding groove 112 towards the outside of the second housing 110. Referring to Figure 5, the other two first engaging members 102 are both disposed on the fourth side of the second housing 110 and are spaced apart along the third direction. A part of the first arm 1020 of one of the first engaging members 102 located on the fourth side of the second housing 110 is located outside the second housing 110, and its first engaging portion 1021 extends from the first arm 1020 toward the inside of the second housing 110 via the sliding groove 112. A part of the first arm 1020 of the other first engaging member 102 located on the fourth side of the second housing 110 is located inside the second housing 110, and its first engaging portion 1021 extends from the first arm 1020 toward the outside of the second housing 110 via the sliding groove 112.

[0099] Reference Figure 6 and ​ , the second engaging member 103 further includes a second arm 1030 extending along the first direction. The second engaging portion 1031 is disposed on the second arm 1030, and the extending direction of the second engaging portion 1031 forms an angle with the extending direction of the second arm 1030, and the angle includes 90°. The second arm 1030 is elastic. Thus, when the clamping bin 1 is in the first state, in response to applying a force to the first housing 100 and / or the second housing 110 of the clamping bin 1, the second arm 1030 deforms, so that the second engaging portion 1031 abuts against the fastening portion 113, and the clamping bin 1 switches to the second state.

[0100] The first housing 100 has at least two second engaging members 103. For example, reference ​ , the first housing 100 has four second engaging members 103. Reference ​ , when the clamping bin is in the second state, two of the second engaging members 103 are respectively disposed on the first side and the second side of the second housing 110, and their second arms 1030 are both partially located inside the first housing 100, and their second engaging portions 1031 both extend from their respective second arms 1030 toward the outside of the second housing 110 via the sliding groove 112. The other two second engaging members 103 are both disposed on the fourth side of the second housing 110 and are spaced apart along the third direction. A part of the second arm 1030 of one of the second engaging members 103 located on the fourth side of the second housing 110 is located outside the second housing 110, and its second engaging portion 1031 extends from the second arm 1030 toward the inside of the second housing 11 through the sliding groove 112. A part of the second arm 1030 of the other second engaging member 103 located on the fourth side of the second housing 110 is located inside the second housing 110, and its second engaging portion 1031 extends from the second arm 1030 toward the outside of the second housing 110 via the sliding groove 112.

[0101] Reference ​, an avoidance opening 10201 is provided in each of the first arms 1020 of the first engaging member 102, and the four second engaging members 103 are respectively located at the avoidance openings 10201 of the four first engaging members 102.

[0102] Reference ​ , the first bin 100 is provided with a first switching guide sleeve 104. Referring to FIGS. 9-10, the second bin 110 is provided with a second switching guide sleeve 114. Reference ​ , the first switching guide sleeve 104 extends along a first direction and is inserted into the second switching guide sleeve 114.

[0103] When installing the first engaging member 102 and the fastening portion 113, the first switching guide sleeve 104 is inserted into the second switching guide sleeve 114, so that the first bin 100 and the second bin 110 can be quickly positioned, facilitating installation.

[0104] During the process of the clip bin 1 switching states, when at least one of the first bin 100 and the second bin 110 moves to approach each other, the first switching guide sleeve 104 moves along the second switching guide sleeve 114, thereby limiting the movement of the first bin 100 and / or the second bin 110.

[0105] In some alternative embodiments, a switching guide post 115 is further provided inside the second switching guide sleeve 114. During the process of the clip bin 1 switching states, when at least one of the first bin 100 and the second bin 110 moves to approach each other, the first switching guide sleeve 104 moves along the second switching guide sleeve 114 until the switching guide post 115 is inserted into the first switching guide sleeve 104, further limiting the movement of the first bin 100 and / or the second bin 110.

[0106] Reference ​ , the present disclosure further provides a clip applicator, which includes a clip bin 1, an end effector 3, a limiting groove 10, and a clip feeding mechanism. The clip bin 1 houses clips 2 inside. Each clip 2 has a connecting portion 220 and two clip arms connected via the connecting portion 220, and the connecting portion 220 has a convex portion. The clip bin 1 can adopt the above-mentioned clip bin 1, and the clip bin 1 is first switched to the second state and then installed on the clip applicator.

[0107] Reference ​ , the end effector 3 includes a pivot member 300 and two jaw arms pivotally connected to the pivot member 300, and the clip bin 1 is detachably connected to the pivot member 300. Reference ​ And ​, the pivot member 300 has a clip feeding channel 301. The proximal end of the clip feeding channel 301 communicates with the interior of the clip magazine 1, and the distal end of the clip feeding channel 301 leads between the two clamping arms. For example, the pivot member 300 further has a clip inlet and a clip outlet that communicate with the clip feeding channel 301. The clip inlet communicates with the interior of the clip magazine 1, and the clip outlet is located between the two clamping arms.

[0108] Reference ​ , the limiting groove 10 is at least partially provided on the inner wall surrounding the clip feeding channel 301.

[0109] Reference ​ , the distal end of the clip feeding mechanism has a recess 414. In response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes the clip 2 to move distally from the clip magazine 1 and move through the clip feeding channel 301 to between the two clamping arms. The protrusion of the clip 2 falls into the recess 414 of the clip feeding mechanism and reaches between the two clamping arms via the limiting groove 10, so that the movement of the clip 2 distally can be limited, preventing the clip 2 from flipping during movement and preventing the clip 2 from detaching from the end effector 3, enabling the clip 2 to move stably into the end effector 3.

[0110] The recess 414 of the clip feeding mechanism is aligned with the limiting groove 10 in the axial direction, so that when the protrusion of the clip enters the limiting groove 10, the recess of the clip feeding mechanism can abut against the protrusion of the clip behind the clip.

[0111] When the protrusion of the clip moves in the limiting groove 10, both the recess 414 of the clip feeding mechanism and the limiting groove 10 can limit the movement of the clip 2 distally. When the clip 2 moves into the end effector and disengages from the limiting groove 10, the recess 414 of the clip feeding mechanism continues to limit the movement of the clip 2 distally in the end effector.

[0112] The clamping arms of the clip 2 also have protrusions. Reference ​ , the clip magazine 1 has a first inner wall 141 and a second inner wall 142 that are opposite in a first direction. The protrusion of one clamping arm abuts against the first inner wall 141 of the clip magazine 1, and the protrusions of the other clamping arm and the connecting portion 220 both abut against the second inner wall 142 of the clip magazine 1, so that the clip 2 can be stably accommodated in the clip magazine 1.

[0113] Reference ​, the clip magazine 1 further has a third inner wall and a fourth inner wall 144 that are opposite to each other in the second direction. The third inner wall and the fourth inner wall 144 are arranged in sequence in the second direction. The limiting groove 10 is partially arranged on the fourth inner wall 144, and the fourth inner wall 144 is further provided with a transition portion 1440. One end of the transition portion 1440 extends to the second inner wall 142, and the other end extends into the limiting groove 10. In response to the clip feeding mechanism pushing the clip 2 to move distally, the convex portion of the connecting portion 220 of the clip moves along the transition portion 1440 into the limiting groove 10 and falls into the recessed portion 414 of the clip feeding mechanism.

[0114] Taking ​ as a reference, the transition portion 1440 is arranged on the fourth inner wall 144, and one end of the transition portion 1440 extends upward to the second inner wall 142.

[0115] As described above, the clip magazine 1 includes a first magazine body 100 and a second magazine body 110. When the clip magazine 1 is in the second state, the walls of the first magazine body 100 and the second magazine body 110 respectively constitute the above-mentioned first inner wall 141, second inner wall 142, third inner wall and fourth inner wall 144 of the clip magazine 1.

[0116] The inner wall surrounding the clip feeding channel 301 further has a first stop portion 302 and a second stop portion 303. Referring to ​ and ​ , the first stop portion 302 and the second stop portion 303 are arranged oppositely in the first direction. Referring to ​ and ​ , each clamping arm has a guiding portion 340. The proximal end of the first stop portion 302 is connected to the first inner wall 141, and the distal end of the first stop portion 302 is connected to the guiding portion 340 of one of the clamping arms. The proximal end of the second stop portion 303 is connected to the second inner wall 142, and the distal end of the second stop portion 303 is connected to the guiding portion 340 of the other clamping arm.

[0117] Referring to ​ , in response to the clip feeding mechanism pushing the clip 2 to move distally from the clip magazine 1, the convex portion of one of the clip arms moves sequentially along the first inner wall 141, the first stop portion 302 and the guiding portion 340 of one of the clamping arms, and the convex portion of the other clip arm moves sequentially along the second inner wall 142, the second stop portion 303 and the guiding portion 340 of the other clamping arm until the clip 2 reaches the ready position.

[0118] The ready position is the position where the clip 2 is stably clamped by the two clamping arms of the end effector 3 and can be effectively compressed to the closed state. If the clip 2 slides in the two clamping arms of the end effector 3 so that it is not in the ready position, during the clamping process, the support for the clip 2 will be insufficient, causing the clip 2 to automatically pop out or the clip 2 to twist, resulting in poor compression effect or even the clip 2 cannot be closed.

[0119] Before the clip 2 moves from the clip magazine 1 to between the two clamping arms, the clip 2 always remains in a compressed state. When the clip 2 moves to between the two clamping arms, the two clamping arms of the clip 2 gradually open, causing the clip 2 to gradually return to an extended state.

[0120] Reference ​ and ​ , each bottom of the clamping arm also has a receiving portion 350, and the receiving portion 350 is located at the distal end of the guiding portion 340 of the clamping arm where it is located. In response to the clip feeding mechanism pushing the clip 2 to move distally from the clip magazine 1, the convex portion of one clamping arm enters the receiving portion 350 at the distal end of the guiding portion 340 of one clamping arm along the guiding portion 340 of one clamping arm, and the convex portion of the other clamping arm enters the receiving portion 350 at the distal end of the guiding portion 340 of the other clamping arm along the guiding portion 340 of the other clamping arm, so that the clip 2 reaches the ready position and the clip returns to the extended state.

[0121] In some embodiments, the receiving portion 350 is a depression.

[0122] Reference ​ and ​ , the inner wall surrounding the clip feeding channel 301 is provided with two limiting grooves 10, and the two limiting grooves 10 are oppositely arranged along the second direction. The limiting grooves 10 are located between the first stop portion 302 and the second stop portion 303.

[0123] Each clamping arm includes a bottom, one side portion provided on one side of the bottom, and another side portion provided on the other side of the bottom. The bottom and the two side portions make the cross-section of each clamping arm substantially "U" - shaped.

[0124] Each clamping arm has two guiding portions 340, one guiding portion 340 is provided at one side portion, and the other guiding portion 340 is provided at the other side portion.

[0125] The two clamping arms are the first clamping arm 310 and the second clamping arm 320. Two receiving portions 350 are provided at the distal end of the first clamping arm 310. One receiving portion 350 is provided near one side portion of the first clamping arm 310 and is located at the distal end of one guiding portion 340 of the first clamping arm 310, and the other receiving portion 350 is provided near the other side portion of the first clamping arm 310 and is located at the distal end of the other guiding portion 340 of the first clamping arm 310.

[0126] Two receiving portions 350 are also provided at the distal end of the second clamping arm 320. One receiving portion 350 is provided near one side portion of the second clamping arm 320 and is located at the distal end of one guiding portion 340 of the second clamping arm 320, and the other receiving portion 350 is provided near the other side portion of the second clamping arm 320 and is located at the distal end of the other guiding portion 340 of the second clamping arm 320.

[0127] The proximal end of one of the first stoppers 302 is connected to the first inner wall 141 of the cartridge 1, and the distal end is connected to one of the guiding portions 340 of the first clamping arm 310. The proximal end of the other first stopper 302 is connected to the first inner wall 141 of the cartridge 1, and the distal end is connected to the other guiding portion 340 of the first clamping arm 310. The proximal end of one of the second stoppers 303 is connected to the second inner wall 142 of the cartridge 1, and the distal end is connected to one of the guiding portions 340 of the second clamping arm 320. The proximal end of the other second stopper 303 is connected to the second inner wall 142 of the cartridge 1, and the distal end is connected to the other guiding portion 340 of the second clamping arm 320.

[0128] The two clamping arms of the clip 2 are the first clamping arm 200 and the second clamping arm 210. The first clamping arm 200 of the clip 2 has two first convex portions 201. The second clamping arm 210 of the clip 2 has a second convex portion 211. The connecting portion 220 of the clip 2 has a third convex portion 221. The first convex portion 201 of the first clamping arm 200 abuts against the first inner wall 141 of the cartridge 1. The second convex portion 211 of the second clamping arm 210 and the third convex portion 221 of the connecting portion 220 both abut against the second inner wall 142 of the cartridge 1, so that the clip 2 can be stably accommodated in the cartridge 1.

[0129] In response to the clip feeding mechanism pushing the clip 2 to move distally from the cartridge 1 to the ready position, one end of the first convex portion 201 of the first clamping arm 200 moves along one of the first stoppers 302 and one of the guiding portions 340 of the first clamping arm 310 to the accommodating portion 350 at its distal end, and the other end of the first convex portion 201 moves along the other first stopper 302 and the other guiding portion 340 of the first clamping arm 310 to the accommodating portion 350 at its distal end; one of the second convex portions 211 of the second clamping arm 210 moves along one of the second stoppers 303 and one of the guiding portions 340 of the second clamping arm 320 to the accommodating portion 350 at its distal end, and the other second convex portion 211 moves along the other second stopper 303 and the other guiding portion 340 of the second clamping arm 320 to the accommodating portion 350 at its distal end. When the clip 2 moves in the clip feeding channel 301 of the pivot member 300, one end of the third convex portion 221 of the connecting portion 220 moves along one of the limiting grooves 10 on the inner wall of the clip feeding channel 301, and the other end moves along the other limiting groove 10 on the inner wall of the clip feeding channel 301.

[0130] When the clip 2 is in the ready position, the two ends of the first convex portion 201 of the clip 2 are respectively movably located in the two accommodating portions 350 of the first clamping arm 310, and the two second convex portions 211 of the clip 2 are respectively movably located in the two accommodating portions 350 of the second clamping arm 320.

[0131] When the clip 2 is in the preparation position, in response to the closing of the end effector 3, the clip 2 is compressed, and the convex portion of the connecting portion 220 is located on the distal side of the clip feeding channel 301. Thus, when the end effector 3 is opened, the clip 2 will not be pulled, and the clip 2 will not pull tissues or blood vessels, reducing the risk of minimally invasive surgery.

[0132] As described above, the clip cavity of the clip cartridge 1 includes a first cavity 121 and a second cavity 122 that are sequentially arranged and communicated along the second direction. The second cavity 122 communicates with the clip feeding channel 301. In response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes the clip 2 in the second cavity 122 to move distally from the clip cartridge 1 and move through the clip feeding channel 301 to between the two clamping arms.

[0133] The clip cartridge 1 is detachably connected to the clip applicator. Refer to ​ and ​ , the pivot member 300 has a buckling portion 304 and a plugging portion 305. The clip cartridge 1 has a buckle 151 and a plug 152 that are opposite to each other along the third direction. When installing the clip cartridge 1 on the clip applicator, the clip cartridge 1 is in the second state, the plug 152 of the clip cartridge 1 is inserted into the plugging portion 305 of the pivot member 300, and then the clip cartridge 1 is pressed so that the buckle 151 engages with the buckling portion 304.

[0134] Taking ​ as a reference, the buckling portion 304 extends along the third direction. Refer to ​ , the buckle 151 has a clamping arm 1510 and a buckling body 1511 arranged on the clamping arm 1510. The buckling body 1511 extends from the clamping arm 1510 in a direction opposite to the third direction. When the clip cartridge 1 is pressed, the clamping arm 1510 deforms, so that the buckling body 1511 moves below the buckling portion 304 and abuts against the buckling portion 304.

[0135] When the clips 2 in the clip cartridge 1 are exhausted, only need to detach the clip cartridge 1 from the pivot member 300, install a new clip cartridge 1 with clips 2 on the pivot member 300, and then the clip applicator can be used continuously. Thus, the reuse of the clip applicator is realized, and the cost can be saved.

[0136] A clip applicator of the present disclosure includes a clip cartridge 1, an end effector, a limiting groove, and a clip feeding mechanism.

[0137] The clip magazine 1 includes at least two clips 2. Each clip 2 has a connecting portion and two clip arms connected via the connecting portion. Both the clip arms and the connecting portion have convex portions. At least two clips 2 are stacked in a staggered manner along a second direction such that the convex portions of adjacent clips 2 are staggered along the second direction. The end effector includes a pivot member and two jaw arms pivotally connected to the pivot member. The clip magazine 1 is connected to the pivot member. The pivot member has a clip feeding channel. The proximal end of the clip feeding channel communicates with the interior of the clip magazine 1, and the distal end of the clip feeding channel leads between the two jaw arms. The limiting groove is at least partially provided on the inner wall surrounding the clip feeding channel. The clip feeding mechanism is configured to drive the clips 2 of the clip magazine 1 to move; In response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes against the clip 2 to move it distally from the clip magazine 1 and through the clip feeding channel to between the two jaw arms. The convex portion of the connecting portion of the clip 2 reaches between the two jaw arms via the limiting groove.

[0138] By providing that the connecting portion of the clip 2 has a convex portion, not only is it possible to stably stack the clips 2 in the clip magazine, but also the convex portion of the connecting portion of the clip cooperates with the limiting groove, so that the movement of the clip 2 distally can be limited, preventing the clip 2 from flipping during movement and preventing the clip 2 from detaching from the end effector 3, enabling the clip 2 to move stably into the end effector 3.

[0139] The structure of the clip applicator will be described in more detail below.

[0140] The clip applicator further includes an operating assembly, a rod body assembly extending from the operating assembly, and a transmission mechanism. The end effector 3 is provided at the distal end of the rod body assembly.

[0141] Referring to ​ , the operating assembly includes a housing and a wrench 710. The wrench 710 is movably connected to the housing. The housing is divided into a head housing and a handle housing 700 extending from the lower side of the head housing according to the positional relationship. The handle housing 700 and the wrench 710 form a handle assembly. The operator can hold the handle housing 700 with one hand and pull the wrench 710 with a finger, causing the wrench 710 to move relative to the handle housing 700, so that the clip applicator performs a clip feeding action or a clip applying action. Those skilled in the art will readily appreciate that although the wrench 710 is shown and described, the clip applicator disclosed herein may also not include the wrench 710. For example, the clip applicator may be electric and may include an actuation button for actuating a motor to control the clip feeding action and the clip applying action of the clip applicator.

[0142] The wrench 710 can be rotated towards the handle housing 700 and can be in three special positions: the open position, the middle position, and the closed position. Initially, when the user does not operate the wrench 710, the position of the wrench 710 is the open position. When the user operates the wrench 710, at the moment when the clip feeding is completed, the clip 2 is sent to the preparation position, and the position of the wrench 710 is the middle position. When the user operates the wrench 710, at the moment when the clamping is completed, the clip 2 located at the preparation position is applied to the tissue or blood vessel, and the position of the wrench 710 is the closed position.

[0143] Reference ​ , the shaft assembly includes a main shaft 1100. The main shaft 1100 has strong rigidity. The proximal end of the main shaft 1100 is disposed within the head housing, and the distal end of the main shaft 1100 is connected to the pivot member 300 of the end effector 3.

[0144] The transmission mechanism includes a clip feeding mechanism and a clamping mechanism. The clip feeding mechanism is configured to drive the clip 2 into the end effector 3 (clip feeding action), and the clamping mechanism is configured to drive the end effector 3 to close (clamping action). The wrench 710 drives the transmission mechanism to move, thereby driving the clip feeding mechanism and the clamping mechanism to move, so that the clip feeding mechanism performs the clip feeding action and the clamping mechanism performs the clamping action.

[0145] Reference ​ and ​ , the clamping mechanism includes a clamping drive tube 400 and a sleeve 401. The clamping drive tube 400 is received within the housing of the operating assembly. The sleeve 401 is sleeved outside the main shaft 1100, and the sleeve 401 also forms a part of the shaft assembly. The proximal end of the sleeve 401 is connected to the clamping drive tube 400, and the distal end of the sleeve 401 cooperates with the end effector. In response to the wrench 710 moving from the middle position to the closed position, the clamping drive tube 400 moves distally to drive the sleeve 401 to move distally, thereby driving the end effector to close.

[0146] Reference ​ , the sleeve 401 has an opening structure 402. The clip cartridge 1 can be inserted into the sleeve 401 from the opening structure 402 and then installed on the pivot member 300. When disassembling the clip cartridge 1, the clip cartridge 1 is disassembled from the opening structure 402 and removed from the sleeve 401 from the opening structure 402.

[0147] Reference ​, the clip applying mechanism further includes a clip applying reset member 403, and the clip applying reset member 403 is a spring. The clip applying reset member 403 is configured to store energy when the clip applying mechanism advances, and the clip applying reset member 403 restores its deformation to release the energy so as to provide power for the reset and retraction of the clip applying mechanism. The clip applying reset member 403 is disposed in the head housing of the clip applying pliers and sleeved on the sleeve 401. The proximal end of the clip applying reset member 403 abuts against the distal end face of the clip applying drive tube 400, and the distal end abuts against the inner wall of the head housing. In response to the clip applying drive tube 400 moving distally, the clip applying reset member 403 is compressed to store energy, and the clip applying reset member 403 releases the energy, and the clip applying drive tube 400 moves proximally to reset, so that the sleeve 401 moves proximally to reset.

[0148] The end effector 3 includes a first jaw 310 and a second jaw 320 that are respectively pivotally connected to the distal end of the pivot member 300. Refer to ​ , there is a jaw reset member 330 between the first jaw 310 and the second jaw 320, and the jaw reset member 330 is a spring. When the clip applying drive tube 400 drives the sleeve 401 to move distally, the first jaw 310 and the second jaw 320 can be at least partially received in the sleeve 401 from the distal end of the sleeve 401 so that the end effector 3 closes. At this time, the jaw reset member 330 between the two jaws is compressed, and at the same time, the clip applying reset member 403 is also compressed. When the clip application is completed, the user releases the wrench 710. Under the action of the clip applying reset member 403, the sleeve 401 moves proximally, the first jaw 310 and the second jaw 320 can extend from the distal end of the sleeve 401, and the jaw reset member 330 releases energy to open the end effector 3.

[0149] The clip feeding mechanism includes a clip feeding assembly, and the clip feeding assembly includes a transmission assembly and a clip feeding block 413. The clip feeding block 413 is disposed at the distal end of the transmission assembly, and a recess 414 is disposed on the clip feeding block 413. In response to the transmission assembly moving distally, the clip feeding block 413 pushes the clip to move distally. The transmission assembly includes a rigid section and an elastic section connected to each other. The clip feeding block 413 is connected to the elastic section.

[0150] Refer to ​ and ​ , the transmission assembly includes a clip feeding rod 411 and an elastic rod 412. Refer to ​ and ​ , the transmission assembly further includes a clip feeding drive tube 410.

[0151] The clip feeding drive tube 410 is connected to the proximal end of the clip feeding rod 411. The distal end of the clip feeding rod 411 is connected to the proximal end of the elastic rod 412. The clip feeding block 413 is connected to the distal end of the elastic rod 412. The clip feeding drive tube 410 and the clip feeding rod 411 form a rigid section of the transmission assembly, and the elastic rod 412 forms an elastic section of the transmission assembly. The clip feeding rod 411 is rigid and not prone to deformation, avoiding bending during axial movement in the rod body assembly and causing blockage of the transmission assembly.

[0152] Reference ​ , the clip feeding drive tube 410 is sleeved on the main shaft 1100 and can move along the main shaft 1100. The clip applying drive tube 400 is sleeved on the clip feeding drive tube 410 and can move axially relative to the clip feeding drive tube 410. In response to the wrench 710 moving from the open position to the intermediate position, the clip feeding drive tube 410 moves distally to drive the clip feeding rod 411 to move distally, so that the clip feeding rod 411 drives the elastic rod 412 to move distally, and thus the clip feeding block 413 drives the clip 2 from the clip magazine 1 to the end effector.

[0153] The clip feeding mechanism further includes a clip feeding reset member 415, and the clip feeding reset member 415 is a spring. The clip feeding reset member 415 is configured to store energy when the clip feeding mechanism advances, and the clip feeding reset member 415 restores deformation to release the energy to provide power for the reset and retreat of the clip feeding mechanism.

[0154] Reference ​ , the clip feeding reset member 460 is sleeved on the main shaft 1100. The proximal end of the clip feeding reset member 460 abuts against the distal end face of the clip feeding drive tube. The distal end of the clip feeding reset member 460 is located inside the clip feeding drive tube 410 and abuts against the retaining ring 1102 on the outer wall of the main shaft 1100. The retaining ring 1102 extends circumferentially along the main shaft 1100. In response to the clip feeding drive tube 410 moving distally, the distal end face of the clip feeding drive tube 410 gradually approaches the retaining ring 1102, so that the clip feeding reset member 460 is compressed to store energy. The clip feeding reset member 460 releases energy, causing the clip feeding drive tube 410 to move proximally to reset, and causing the clip feeding assembly to move proximally to reset.

[0155] Reference ​ , the clip feeding drive tube 410 drives the clip feeding rod 411 to move distally, so that the elastic rod 412 and the clip feeding block 413 also move distally to send the clip 2 in the clip magazine 1 to the preparation position. At this time, the clip feeding reset member 415 deforms. After the clip 2 is in the preparation position, the clip feeding block 413 at the distal end of the elastic rod 412 continues to abut against the clip 2 from the rear end of the clip 2 to prevent the clip 2 from moving proximally during the clip applying process. After the end effector 3 closes, the clip feeding assembly resets under the action of the clip feeding reset member 415. In the initial state, the clip feeding block 413 at the distal end of the elastic rod 412 extends into the second cavity 122 from the inlet 145 of the second cavity 122 of the clip magazine 1.

[0156] Reference ​ ​ After the clip feeding assembly moves distally to push the clip 2 against the end effector 3 and then moves proximally to reset, under the action of the biasing assembly, both the clip 231 and the clip 232 move downward, so that the clip 232 enters the second cavity 122 to enable clip application again. It should be noted that reference ​ ​ Before the clip feeding assembly pushes the clip 233 against the end effector 3 and before the clip feeding assembly resets, the clip feeding assembly abuts against the clip 232, so that neither the clip 231 nor the clip 232 moves downward. When the clip feeding assembly moves proximally to reset, the clip 231 and the clip 232 can move into the second cavity 122 under the action of the biasing assembly.

[0157] The transmission mechanism alternatively has a first transmission state and a second transmission state. In the first transmission state, the transmission mechanism drives the clip feeding mechanism to move distally. In the second transmission state, the transmission mechanism drives the clip applying mechanism to move distally. The transmission mechanism further includes a switching mechanism. The wrench 710 abuts against the switching mechanism to provide power to the switching mechanism, and the switching mechanism alternatively transmits this power to the clip feeding drive tube 410 or the clip applying drive tube 400.

[0158] In the first transmission state, the switching mechanism is operably connected to the clip feeding drive tube 410. The switching mechanism drives the clip feeding drive tube 410 of the clip feeding assembly to move distally to drive the clip feeding assembly to move distally, so that the clip feeding assembly drives the clip 2 in the clip magazine 1 to move to the preparation position in the end effector 3 to wait for clip application.

[0159] In the second transmission state, the switching mechanism is separated from the clip feeding drive tube 410, and the clip feeding drive tube 410 no longer advances. At this time, the clip 2 is in the preparation position. The switching mechanism drives the clip applying drive tube 400 to move distally, so that the sleeve 401 moves distally, thereby closing the end effector 3, and the clip 2 in the preparation position is applied to the tissue or blood vessel.

[0160] Reference ​ ​ The switching mechanism includes a base 420, a first clutch mechanism and a second clutch mechanism. The wrench 710 abuts against the base 420 to provide power to the switching mechanism to make the switching mechanism move distally.

[0161] Reference ​ ​ The clip applying mechanism further includes two rod bodies 404. The clip applying drive tube has two connecting parts 405. The distal end of one rod body 404 is connected to one of the connecting parts 405, and the distal end of the other rod body 404 is connected to the other connecting part 405.

[0162] Reference ​, on each rod body 404, there is a sliding groove 4040 extending axially, and the sliding groove 4040 is a closed groove. The distal end of the sliding groove 4040 has a pushing portion 4042.

[0163] Reference ​ , the base also has two socket parts 423, one of the socket parts 423 is sleeved on one of the rod bodies 404 and can move along one of the rod bodies 404, and the other socket part 423 is sleeved on the other rod body 404 and can move along the other rod body 404. The kidney-shaped holes are all arranged above the socket parts 423. Each socket part 423 has a push post 450, one of the push posts 450 is located in the sliding groove 4040 of one of the rod bodies 404 and can move along the sliding groove 4040, and the other push post 450 is located in the sliding groove 4040 of the other rod body 404 and can move along the sliding groove 4040.

[0164] The switching mechanism further includes a base reset member 460, and the base reset member 460 can store energy during the process of the switching mechanism moving towards the distal end. When the energy is released, the switching mechanism moves towards the proximal end and resets under the action of the base reset member 460. For example, the base reset member 460 is a spring.

[0165] Reference ​ , the clamping mechanism includes two base reset members 460. One of the base reset members 460 is sleeved on one of the rod bodies 404, its proximal end abuts against the distal end of one of the socket parts 423, and its distal end abuts against one of the connecting parts 405. The other base reset member 460 is sleeved on the other rod body 404, its proximal end abuts against the distal end of the other socket part 423, and its distal end abuts against the other connecting part 405.

[0166] During the process of the switching mechanism moving towards the distal end, the socket part 423 gradually approaches the connecting part 405, and the two base reset members 460 are compressed to store energy. When the energy is released, the switching mechanism can move towards the proximal end and reset.

[0167] The first clutch mechanism includes a first clutch member and a clutch switching mechanism. The first clutch member is connected to the clutch switching mechanism. The second clutch mechanism includes a second clutch member, and the second clutch member is the push post 450.

[0168] Reference ​ and ​, the base 420 has a through hole 421. When the transmission mechanism is in the first transmission state, the feeding and clamping drive tube 410 is received in the through hole 421, and the first clutch member is connected to the feeding and clamping drive tube 410, so that the switching mechanism can drive the feeding and clamping drive tube 410 of the feeding and clamping assembly to move, causing the feeding and clamping assembly to move, thereby performing the feeding and clamping action. When the transmission mechanism is in the first transmission state, the push column 450 slides in the sliding groove 4040 but does not reach the abutting portion 4042 of the sliding groove 4040. Therefore, the transmission mechanism does not drive the clamping mechanism to move.

[0169] Reference ​ and ​ , the through hole 421 penetrates through the proximal end face of the base 420, enabling the base 420 to advance past the feeding and clamping drive tube 410. When the transmission mechanism is in the second transmission state, under the action of the clutch switching mechanism, the first clutch member is separated from the feeding and clamping drive tube 410; the feeding and clamping drive tube 410 no longer advances, while the base 420 still advances, and the base 420 is separated from the feeding and clamping drive tube 410. At the same time, the push column 450 abuts against the abutting portion 4042 to push the clamping drive tube 400 to move distally, thereby driving the sleeve 401 to move to perform the clamping action.

[0170] The following takes ​ the placement angle of the clamping pliers in as a reference to explain the structure and principle of the switching mechanism in more detail:

[0171] Reference ​ , the base 420 has two opposite kidney-shaped holes 422. The guide post 430 is received in the base 420, and one end of the guide post 430 extends out of one of the kidney-shaped holes 422 and moves on the guide rail of the first head housing 14. The other end of the guide post 430 extends out of the other kidney-shaped hole 422 and moves on the guide rail of the second head housing. Each kidney-shaped hole 422 extends in the up and down direction, enabling the guide post 430 to move up and down.

[0172] Reference ​ , the guide rail includes a first guiding surface 501 and a second guiding surface 502, and the second guiding surface 502 is higher than the first guiding surface 501. The guide post 430 can move on the first guiding surface 501 and the second guiding surface 502. The first guiding surface 501 is smoothly connected to the second guiding surface 502 through an inclined surface, making the movement of the guide post 430 smoother.

[0173] The guide post 430 can move on the guide rail following the movement of the first clutch member. When the guide post 430 moves on the first guiding surface 501, the first clutch member remains in a combined state with the clip feeding drive tube 410. Since the second guiding surface 502 is higher than the first guiding surface 501, when the guide post 430 moves onto the second guiding surface 502 of the guide rail, it drives the first clutch member to move upward, causing the first clutch member to separate from the clip feeding drive tube 410. And when the first clutch member separates from the clip feeding drive tube 410, the second clutch member (push post 450) abuts against the abutting portion 4042 to push the clip driving tube 400 to move distally.

[0174] Reference ​ and ​ , the clip feeding drive tube 410 is an annular member, and an annular groove 4100 is provided on the outer peripheral surface of the clip feeding drive tube 410. Reference ​ , the first clutch member is received in the base 420. The first clutch member includes a cylinder 441, a stopper 442, and a locking block 443. The upper end of the cylinder 441 is connected to the guide post 430, so that the cylinder 441 can drive the guide post 430 to move distally or proximally, and at the same time, the guide post 430 can drive the cylinder 441 to move in the vertical direction. The stopper 442 is provided at the bottom end of the cylinder 441, and the locking block 443 is provided at the bottom end of the stopper 442. The bottom end of the locking block 443 is detachably connected to the clip feeding drive tube 410.

[0175] In the first transmission state, the locking block 443 is located in the annular groove 4100, and the locking block 443 can drive the clip feeding drive tube 410 to move distally. In the second transmission state, the locking block 443 moves upward and disengages from the annular groove 4100. The proximal end face of the locking block 443 is an inclined surface. Thus, when the first clutch member is reset, the proximal end face of the locking block 443 can return to the proximal end of the annular groove 4100.

[0176] Reference ​ , the first clutch member further includes an elastic element 444. The base 420 further has an abutting portion 424. The elastic element 444 is sleeved on the cylinder 441, the upper end of the elastic element 444 abuts against the abutting portion 424, and the lower end of the elastic element 444 abuts against the upper end of the stopper 442. In the first transmission state, the elastic element 444 is in a compressed state, and the elastic element 444 gives a downward force to the stopper 442, so that the bottom end of the locking block 443 abuts against the clip feeding drive tube 410 more stably, improving the stability of the clip feeding action.

[0177] In response to the guide post 430 moving from the first guiding surface 501 to the second guiding surface 502, the cylinder 441 of the first clutch member is lifted, such that the elastic element 444 is further compressed, causing the cylinder 441 of the first clutch member to have a tendency to move downward. In response to the guide post 430 moving from the second guiding surface 502 to the first guiding surface 501, the elastic element 444 drives the cylinder 441 of the first clutch member to move downward until it abuts against the clip driving tube 410.

[0178] The clip driving tube 410 is disposed proximal to the clip applying driving tube 400. When the transmission mechanism is in the first transmission state, under the action of the wrench 710, the base 420 moves distally, the first clutch member moves distally, and the guide post 430 moves distally along the first guiding surface 501 under the action of the first clutch member. When the guide post 430 moves from the first guiding surface 501 to the second guiding surface 502, the guide post 430 drives the first clutch member to move upward, causing the first clutch member to separate from the clip driving tube 410, and the transmission mechanism switches to the second transmission state.

[0179] When the transmission mechanism is in the first transmission state, the switching mechanism is engaged with the clip driving tube 410, and the clip applying pliers perform a clip feeding action. The user manipulates the wrench 710, causing the first clutch member to push the clip driving tube 410 of the clip feeding assembly distally, so that the clip feeding assembly moves distally. The clip feeding assembly pushes against the proximal end of the clip 2 in the second cavity 122 of the clip magazine 1 to push the clip 2 to the preparation position in the end effector 3. This is the moment when the clip feeding is completed.

[0180] During the process of the user manipulating the wrench 710 to push the clip 2 in the clip magazine 1 to the end effector 3, before the clip 2 enters the preparation position, if the user accidentally releases the wrench 710, then under the action of the base reset member 460, the switching mechanism retracts and resets, and the clip feeding assembly retracts and resets under the action of the clip feeding reset member 415. Since the clip 233 has been pushed forward by a certain stroke, when the clip feeding assembly retracts and resets, the clips 231 and 232 will move downward to the second cavity 122. When the user manipulates the wrench 710 again to drive the clip feeding assembly to move distally, the clip feeding assembly simultaneously pushes the clips 232 and 233. Since the clip 232 causes clip feeding interference to the clip 233, normal clip feeding cannot be performed. Therefore, in this embodiment, before the clip feeding assembly pushes the clip 233 into the preparation position, the clip feeding assembly always holds against the proximal end of the clip 233 and supports the clips 231 and 232. Even if the user accidentally releases the wrench 710, the clip feeding assembly will not retract, and the clips 231 and 232 will not enter the second cavity 122 in advance.

[0181] When the end effector 3 closes to close the clip 2, the process of the clip 2 being forced to close will generate a tendency to move proximally, resulting in poor clip application effect. Therefore, in this embodiment, when the transmission mechanism is in the second transmission state, the clip feeding assembly remains at the proximal end of the clip 2 to abut against the clip 2 to prevent the clip 2 from retracting and failing to apply the clip. After the end effector 3 closes, at this time the clip 2 has been applied to the tissue or blood vessel, and then the clip feeding drive tube 410 moves proximally to reset.

[0182] To achieve the above effects, the clip applying forceps of this embodiment further includes an anti-retraction mechanism, and the anti-retraction mechanism is accommodated in the head housing.

[0183] During the process of the wrench 710 moving from the open position to the middle position, the switching mechanism is combined with the clip feeding drive tube 410, and the wrench 710 pushes the switching mechanism to move distally to make the clip feeding drive tube 410 move distally, and the clip applying forceps performs the clip feeding action. "Before moving to the middle position" means that the wrench 710 has not yet moved to the middle position. When the wrench 710 is in the middle position, the switching mechanism is separated from the clip feeding drive tube 410, and at the same time the switching mechanism moves to abut against the clip applying drive tube 400. During the process of the wrench 710 moving from the middle position to the closed position, the wrench 710 pushes the switching mechanism to move distally to make the clip applying drive tube 400 move distally, and the clip applying forceps performs the clip applying action.

[0184] Reference ​ and ​ , the anti-retraction mechanism includes a guiding pivot member 600. The guiding pivot member 600 has a first anti-retraction portion 601, a second anti-retraction portion 602, and a third anti-retraction portion 603. The first anti-retraction portion 601 is located proximal to the second anti-retraction portion 602, and the third anti-retraction portion 603 is located distal to the second anti-retraction portion 602.

[0185] In response to the wrench 710 moving from the open position to before the middle position, the first anti-retraction portion 601 and the second anti-retraction portion 602 are sequentially located at the proximal end of the clip feeding drive tube 410 to prevent the clip feeding drive tube 410 from retracting. Before the clip 2 enters the ready position, if the user accidentally releases the wrench 710, the clip feeding drive tube 410 will abut against the first anti-retraction portion 601 or the second anti-retraction portion 602, so that the clip feeding drive tube 410 of the clip feeding assembly will not retract, and the clip feeding assembly always remains at the proximal end of the clip 2 to abut against the clip 2, thereby avoiding clip feeding errors.

[0186] In response to the wrench 710 moving from the intermediate position to a position before closing, the third anti-retreat portion 603 is located at the proximal end of the clip feeding drive tube 410 and remains in contact with the clip feeding drive tube 410 to prevent the clip feeding drive tube 410 from retreating. "Before moving to the closed position" means that the wrench 710 has not yet moved to the closed position. Before the end effector 3 closes, the clip feeding drive tube 410 of the clip feeding assembly will not retreat, and the clip feeding assembly remains in contact with the proximal end of the clip 2 to hold the clip 2 to prevent the clip 2 from retreating, thereby ensuring the stability of clip application.

[0187] When the wrench 710 is in the closed position and the clip 2 has been applied to the tissue or blood vessel, the third anti-retreat portion 603 is separated from the clip feeding drive tube 410, and under the action of the clip feeding reset member 415, the clip feeding assembly moves proximally to reset.

[0188] It should be noted that moving proximally means moving in the direction towards the proximal end of the clip applicator, and moving distally means moving in the direction towards the distal end of the clip applicator. This is for the convenience of description. At the same time, unless otherwise specified, the proximal and distal ends in other contents are also the proximal and distal ends of the clip applicator.

[0189] Before the clip feeding assembly pushes the clip 233 to move completely out of the clip magazine 1, the distal end of the clip 232 is in contact with the clip 233, the proximal end of the clip 232 is in contact with the clip feeding assembly, and the clip feeding drive tube 410 is located between the first anti-retreat portion 601 and the second anti-retreat portion 602 to prevent the clip feeding drive tube 410 from retreating, so that a clip feeding failure will not occur.

[0190] When the clip feeding assembly pushes the clip 233 to move to the ready position, the clip feeding drive tube 410 moves to the distal end of the third anti-retreat portion 603 and is in contact with the distal end of the third anti-retreat portion 603 to prevent the clip feeding drive tube 410 from retreating. Before and during the closing of the end effector 3, the clip feeding assembly will not retreat, but is in contact with the clip 2 to prevent it from retreating, so as to ensure normal clip application.

[0191] Reference ​ In this embodiment, the guiding pivot member 600 has a pivoting portion 604, a guiding portion 605, and a force-receiving portion 606. The force-receiving portion 606 is disposed between the pivoting portion 604 and the guiding portion 605. The pivoting portion 604 is pivotally connected to the housing through the first pin shaft 12, so that the guiding pivot member 600 can rotate relative to the housing about the first pin shaft 12. The first anti-retreat portion 601, the second anti-retreat portion 602, and the third anti-retreat portion 603 are all disposed above the pivoting portion 604.

[0192] The anti-retreat mechanism further includes a biasing spring 610. One end of the biasing spring 610 abuts against the force-receiving portion 606, and the other end abuts against the housing. The biasing spring 610 is in a compressed state to apply a force to the force-receiving portion 606, so that the guiding pivot member 600 has a tendency to rotate clockwise around the first pin shaft 12 of the pivoting portion 604, that is, the first anti-retreat portion 601, the second anti-retreat portion 602, the third anti-retreat portion 603, and the guiding portion 605 also have a tendency to rotate clockwise.

[0193] Reference ​ , the proximal end of each anti-retreat portion has a guiding surface 6011, and the distal end has an anti-retreat surface 6012. The guiding surface 6011 is an arc surface, and the guiding surface 6011 forms an obtuse angle with the moving direction of the clip feeding drive tube 410, so that the clip feeding drive tube 410 can move along the guiding surface 6011 and enter the distal end of the anti-retreat portion. The anti-retreat surface 6012 forms an acute angle or a right angle with the moving direction of the clip feeding drive tube 410, so that the clip feeding drive tube 410 cannot move along the anti-retreat surface 6012 to the proximal end of the anti-retreat portion, but abuts against the anti-retreat surface 6012 to prevent it from retreating.

[0194] When the clip feeding drive tube 410 moves to the first anti-retreat portion 601, the clip feeding drive tube 410 generates a force on the first anti-retreat portion 601, and the guiding pivot member of the anti-retreat portion 600 moves downward a certain distance against the force of the biasing spring 610, so that the first anti-retreat portion 601 moves downward and enables the clip feeding drive tube 410 to pass through the first anti-retreat portion 601. After the clip feeding drive tube 410 passes through the first anti-retreat portion 601 and moves to the distal end of the first anti-retreat portion 601, under the action of the biasing spring 610, the guiding pivot member 600 moves upward, so that the first anti-retreat portion 601 moves upward to the movement track of the clip feeding drive tube 410, so that the first anti-retreat portion 601 can abut against the clip feeding drive tube 410. The cooperation modes of the first anti-retreat portion 601, the second anti-retreat portion 602, and the third anti-retreat portion 603 with the clip feeding drive tube 410 are substantially the same.

[0195] Reference ​ , the wrench 710 includes a wrench body 711, a user-operated gripping portion 712 provided at one end of the wrench body 711, and a push claw 713 provided at the other end of the wrench body 711. The push claw 713 abuts against and pushes the base 420 of the switching mechanism, so that the switching mechanism moves to drive the clip feeding drive tube 410 or the clip applying drive tube 400 to move. A pivoting end 714 pivotally connected to the housing is provided on the wrench body 711, and the wrench 710 can rotate around the pivoting end 714. The wrench 710 further has a guiding channel 720. The guiding channel 720 is located in the wrench body 711 and between the pivoting end 714 and the push claw 713.

[0196] Reference ​, the anti-reverse mechanism of this embodiment further includes a guide member 620, which is disposed on the guide portion 605 of the guide pivot member 600. At least a part of the guide member 620 is received in the guide channel 720. When the wrench 710 rotates around its pivot end 714, the guide channel 720 rotates accordingly, driving the guide member 620 to move around the first pin shaft 12 under the action of the biasing spring 610.

[0197] As described above, when the clip feeding drive tube 410 moves to the first anti-reverse portion 601, the clip feeding drive tube 410 exerts a force on the first anti-reverse portion 601, and the guide pivot member 600 moves downward by a certain distance against the force of the biasing spring 610. At this time, the guide member 620 also moves downward by a certain distance in the guide channel 720. It should be noted that since the guide pivot member 600 can rotate relative to the housing around the first pin shaft 12, the "downward movement of the guide pivot member 600" and the "downward movement of the guide member 620" mean that as the guide pivot member 600 rotates counterclockwise, the part of the guide pivot member 600 located on the far side of the pivot joint portion 604 and including each anti-reverse portion moves downward relatively, and the guide member 620 also moves downward relatively.

[0198] Reference ​ , the guide channel 720 includes a starting point 721, a first anti-reverse point 722, a second anti-reverse point 723, a third anti-reverse point 724, and an end point 725. When the user operates the wrench 710 to move from the open position to the closed position, the wrench 710 moves, and there is relative movement between the guide channel 720 and the guide member 620. The guide member 620 can move in the guide channel 720 from the starting point 721 to the first anti-reverse point 722, the second anti-reverse point 723, the third anti-reverse point 724, and the end point 725 in sequence along with the movement of the wrench 710. The guide channel 720 is a closed channel, and the guide member 620 is located in the guide channel 720 and cannot leave the guide channel 720. Therefore, in this embodiment, the guide member 620 cannot be separated from the wrench 710.

[0199] The distances from the starting point 721 to the pivot end 714 of the wrench 710 and from the ending point 725 to the pivot end 714 of the wrench 710 are both less than the distance from the first anti-reverse point 722 to the pivot end 714 of the wrench 710, less than the distance from the second anti-reverse point 723 to the pivot end 714 of the wrench 710, and also less than the distance from the third anti-reverse point 724 to the pivot end 714 of the wrench 710. That is, the positions of the first anti-reverse point 722, the second anti-reverse point 723, and the third anti-reverse point 724 are higher than those of the starting point 721 and the ending point 725. Thus, when the wrench 710 is pulled, the wrench 710 moves to drive the guide member 620 to rotate clockwise from the starting point 721 and lift upward to the first anti-reverse point 722 under the action of the biasing spring 610. The wrench 710 continues to move, causing the guide member 620 to move from the first anti-reverse point 722 to the second anti-reverse point 723 and the third anti-reverse point 724 in sequence, and then move downward to the ending point 725. When the guide member 620 moves to the first anti-reverse point 722, the guide pivot member 600 flips upward, causing the first anti-reverse portion 601, the second anti-reverse portion 602, and the third anti-reverse portion 603 to all move upward.

[0200] When the wrench 710 is in the open position, the guide member 620 is located at the starting point 721. When the wrench 710 moves and causes the guide member 620 to move from the initial position to the first anti-reverse point 722, the guide pivot member 600 has rotated upward, and the clip feeding drive tube 410 moves to the distal end of the first anti-reverse portion 601, that is, the first anti-reverse portion 601 is located at the proximal end of the clip feeding drive tube 410 to prevent the clip feeding drive tube 410 from retreating. At this time, if the wrench 710 is released, the clip feeding drive tube 410 will abut against the first anti-reverse portion 601 and stop retreating.

[0201] Before the wrench 710 moves and causes the guide member 620 to move from the first anti-reverse point 722 to the second anti-reverse point 723, the clip feeding drive tube 410 moves distally between the first anti-reverse portion 601 and the second anti-reverse portion 602. If the wrench 710 is released during this process, the clip feeding drive tube 410 will retreat a short distance and then abut against the first anti-reverse portion 601 and stop retreating further.

[0202] When the guide member 620 is located at the second anti-reverse point 723, the clip feeding drive tube 410 moves to the distal end of the second anti-reverse portion 602, that is, the second anti-reverse portion 602 is located at the proximal end of the clip feeding drive tube 410 to prevent the clip feeding drive tube 410 from retreating. At this time, if the wrench 710 is released, the clip feeding drive tube 410 abuts against the second anti-reverse portion 602 and stops retreating further.

[0203] During the process in which the wrench 710 moves and causes the guide member 620 to move from the second anti-reverse point 723 to before the third anti-reverse point 724, the clip feeding drive tube 410 moves distally between the second anti-reverse portion 602 and the third anti-reverse portion 603. During this process, if the wrench 710 is released, the clip feeding drive tube 410 will retreat a short distance and then abut against the second anti-reverse portion 602 and stop retreating further.

[0204] When the wrench 710 moves to the middle position, the guide member 620 is located at the third anti-reverse point 724, the clip 2 is in the ready position, the clip feeding drive tube 410 moves to the distal end of the third anti-reverse portion 603, and the clip feeding drive tube 410 abuts against the distal end of the third anti-reverse portion 603 to prevent the clip feeding drive tube 410 from retreating.

[0205] During the process in which the wrench 710 moves and causes the guide member 620 to move from the third anti-reverse point 724 to before the end point 725, the guide pivot member 600 does not move downward, the third anti-reverse portion 603 abuts against the proximal end of the clip feeding drive tube 410 to prevent the clip feeding drive tube 410 from retreating, so that the clip feeding assembly can abut against the proximal end of the clip 2 at the proximal end of the clip 2, and the clip 2 will not retreat during the clamping process, thereby ensuring the stability of clamping.

[0206] When the guide member 620 moves from the third anti-reverse point 724 to the end point 725, the guide pivot member 600 moves downward, and the third anti-reverse portion 603 moves below the clip feeding drive tube 410, thereby separating from the clip feeding drive tube 410, and the clip feeding drive tube 410 resets. At this time, the wrench 710 is in the closed position.

[0207] Reference ​ , the guiding channel 720 includes a main channel 726 and only one sub-channel 727 extending from an opening 7262 of the main channel 726. The opening 7262 is located between the two ends of the main channel 726. The sub-channel 727 extends from the opening 7262 of the main channel 726 in a direction away from the pivot end 714, that is, the distance between the sub-channel 727 and the pivot end 714 is greater than the distance between the main channel 726 and the pivot end 714. The two ends of the main channel 726 are respectively provided with a starting point 721 and an end point 725. The first anti-reverse point 722, the second anti-reverse point 723, and the third anti-reverse point 724 are all located in the sub-channel 727. The biasing spring 610 applies a force to the guide pivot member 600, so that the guide member 620 can disengage from the main channel 726 and enter the sub-channel 727.

[0208] When the guide member 620 moves from the starting point 721 of the main channel 726 to the sub-channel 727, the guide member 620 moves upward to the first anti-retreat point 722, and the guide pivot member 600 rotates upward. When the guide member 620 moves within the sub-channel 727, the guide member 620 sequentially passes through the second anti-retreat point 723 and the third anti-retreat point 724. Before the guide member 620 moves from the third anti-retreat point 724 to the end point 725, the guide member 620 is still moving within the sub-channel 727. At this time, the third anti-retreat portion 603 always abuts against the clip feeding drive tube 410. When the guide member 620 moves from the third anti-retreat point 724 of the sub-channel 727 to the end point 725, the guide member 620 moves downward, causing the guide pivot member 600 to move downward, and the third anti-retreat portion 603 moves below the clip feeding drive tube 410, and the clip feeding drive tube 410 resets.

[0209] The following details the working process of the clip applying pliers of this embodiment performing the clip feeding action and the clip applying action from the perspective of the guide member 620: Press the wrench 710 so that the guide member 620 can sequentially move from the starting point 721 to the first anti-retreat point 722, the second anti-retreat point 723, the third anti-retreat point 724, and the end point 725.

[0210] During the process of the guide member 620 moving from the starting point 721 to the first anti-retreat point 722, the guide member 620 enters the sub-channel 727 from the main channel 726, the guide pivot member 600 rotates upward, the first anti-retreat portion 601, the second anti-retreat portion 602, and the third anti-retreat portion 603 all move upward, and the clip feeding drive tube 410 moves to the distal end of the first anti-retreat portion 601.

[0211] During the process of the guide member 620 moving from the first anti-retreat point 722 to the second anti-retreat point 723, the guide member 620 moves within the sub-channel 727, and the clip feeding drive tube 410 moves from the distal end of the first anti-retreat portion 601 to the distal end of the second anti-retreat portion 602.

[0212] During the process of the guide member 620 moving from the starting point 721 to the second anti-retreat point 723, the guide post 430 has been moving on the first guiding surface 501, the first clutch member is detachably connected to the clip feeding drive tube 410, and the switching mechanism drives the clip feeding drive tube 410 to move.

[0213] During the process of the guide member 620 moving from the second anti-retreat point 723 to before the third anti-retreat point 724, the guide member 620 moves out of the channel 727, and the clip feeding drive tube 410 moves distally between the second anti-retreat portion 602 and the third anti-retreat portion 603. The guide post 430 continues to move on the first guiding surface 501 first. When the guide post 430 moves onto the inclined surface between the first guiding surface 501 and the second guiding surface 502, the guide member 620 is about to reach the third anti-retreat point 724 but has not reached it yet. And when the guide post 430 is on the inclined surface, the first clutch member is still detachably connected to the clip feeding drive tube 410, and the switching mechanism drives the clip feeding drive tube 410 to move.

[0214] When the guide member 620 reaches the third anti-retreat point 724, the guide member 620 is still moving out of the channel 727, the clip feeding drive tube 410 reaches the distal end of the third anti-retreat portion 603, and the third anti-retreat portion 603 abuts against the proximal end of the clip feeding drive tube 410. At this time, the guide post 430 reaches the second guiding surface 502, the first clutch member is separated from the clip feeding drive tube 410, the second clutch member (push post 450) abuts against the pushing portion 4042, and the switching mechanism can drive the clip applying drive tube 400 to move. When the guide member 620 reaches the third anti-retreat point 724, the wrench 710 is in the middle position, and this is the moment when clip feeding is completed. The clip feeding drive tube 410 has already sent the clip 2 to the preparation position.

[0215] During the process of the guide member 620 moving from the third anti-retreat point 724 to before the end point 725, the guide member 620 moves out of the channel 727, so that the guide pivot member 600 does not move downward, and the third anti-retreat portion 603 remains in contact with the proximal end of the clip feeding drive tube 410. The guide post 430 moves on the second guiding surface 502, the second clutch member (push post 450) abuts against the pushing portion 4042, and the switching mechanism drives the clip applying drive tube 400 to move.

[0216] When the guide member 620 reaches the end point 725, the guide member 620 enters the main channel 726, the guide pivot member 600 moves downward, the third anti-retreat portion 603 is separated from the clip feeding drive tube 410, and the clip feeding drive tube 410 is reset under the action of the clip feeding reset member 415. At this time, the guide post 430 is located on the second guiding surface 502, and the second clutch member (push post 450) abuts against the pushing portion 4042. When the guide member 620 reaches the end point 725, the wrench 710 is in the closed position, and this is the moment when clip application is completed. The clip 2 located at the preparation position is applied to the tissue or blood vessel. When the wrench 710 is released, the clip applying drive tube 400 is reset under the action of the clip applying reset member 403, the switching mechanism is reset to be sleeved on the clip feeding drive tube 410 under the action of the base reset member 460, and the wrench 710 is reset under the drive of the switching mechanism. Since the base 420 of the switching mechanism has a through hole 421, the switching structure can move proximally to be sleeved on the clip feeding drive tube 410.

[0217] In this embodiment, when the guide member 620 moves from the starting point 721 to the first anti-retreat point 722 in the guiding channel 720, the clip feeding drive tube 410 has already pushed the clip 2, and the position of the clip 2 has changed. If the guide member 620 retreats from the first anti-retreat point 722 to the starting point 721, the first anti-retreat portion 601 will move downward and cannot prevent the clip feeding drive tube 410 from retreating. If the clip feeding drive tube 410 retreats, during the next clip feeding operation, there will be phenomena such as clip feeding interference and clip feeding error.

[0218] Therefore, in this embodiment, when the guide member 620 moves from the starting point 721 to the first anti-retreat point 722 in the guiding channel 720, the guide member 620 can be locked by the guiding channel 720, and the guide member 620 cannot retreat from the first anti-retreat point 722 to the starting point 721.

[0219] Reference ​ , the slave channel 727 includes a blocking wall 7270. The main channel 726 includes a first wall 7260 extending from the starting point 721 to be connected to the blocking wall 7270, and the first wall 7260 and the blocking wall 7270 form a right angle or an acute angle. Such a simple angle design of the guiding channel 720 can ensure that the blocking wall 7270 effectively prevents the guide member 620 from retreating from the first anti-retreat point 722 to the starting point 721.

[0220] In order to enable the guide member 620 to move from the third anti-retreat point 724 to the end point 725, the slave channel 727 further includes a guiding wall 7271. The main channel 726 further includes a second wall 7261 extending from the end point 725 to be connected to the guiding wall 7271, and the second wall 7261 and the guiding wall 7271 form an obtuse angle. Such a simple angle design of the guiding channel 720 ensures that the guide member 620 can move from the third anti-retreat point 724 to the end point 725.

[0221] In this embodiment, the wrench 710 has a forward movement and a reset movement. Specifically, from the initial moment, the user keeps operating the wrench 710, and the wrench 710 moves from the open position to the intermediate position and then to the closed position. The movement of the wrench 710 in the direction towards the closed position is defined as the forward movement of the wrench 710. Correspondingly, the movement of the wrench 710 in the direction towards the open position is defined as the reset movement of the wrench 710.

[0222] When the wrench 710 makes a forward movement, the movement path of the guide member 620 in the guiding channel 720 is the first movement path. When the wrench 710 makes a reset movement, the movement path of the guide member 620 in the guiding channel 720 is the second movement path. The first movement path includes the main channel 726 and the slave channel 727, and the second movement path includes the main channel 726 and does not include the slave channel 727.

[0223] When the wrench 710 reaches the closed position and the user releases the wrench 710, the switching mechanism moves proximally to reset, and the wrench 710 resets under the action of the switching mechanism. During this process, no stop is required. The second movement path shield is from the channel 727 to prevent the guide 620 from entering the from-channel 727 from the end point 725 during the reset movement and being unable to retreat from the first anti-retreat point 722 to the starting point 721, ensuring the smooth reset of the wrench 710 and the anti-retreat mechanism.

[0224] To implement the above-mentioned shielding of the from-channel 727, the clamp of this embodiment further includes a path switching member 8, a positioning mechanism, and a path driving member. The path switching member 8 has an open state and a closed state. When the path switching member 8 is in the open state, the path switching member 8 clears the from-channel 727 to allow the guide 620 to enter or exit the from-channel 727. When the path switching member 8 is in the closed state, the path switching member 8 shields the from-channel 727 to block the guide 620 from entering the from-channel 727.

[0225] Reference ​ , the path switching member 8 is connected to the wrench 710. The path switching member 8 is disposed between the wrench 710 and the first head housing 14. As described above, a pivot end 714 pivotally connected to the housing is provided on the wrench body 711, and the wrench 710 can rotate about the pivot end 714. The grip portion 712 of the wrench 710 is disposed on one side of the pivot end 714, and the path switching member 8 is disposed on the other side opposite to the pivot end 714.

[0226] Reference ​ , the path switching member 8 includes a pivot portion 800, a first trigger portion 801, a second trigger portion 802, and an execution portion 803. The pivot portion 800 of the path switching member 8 is connected to the wrench body 711 through a second pin shaft 13. The path switching member 8 can rotate relative to the wrench 710 about the second pin shaft 13. The first trigger portion 801 is disposed on one side of the pivot portion 800, the second trigger portion 802 is disposed on the other side opposite to the pivot portion 800, the execution portion 803 is disposed on the first trigger portion 801, the execution portion 803 is correspondingly disposed with the from-channel 727 of the guiding channel 720, and the execution portion 803 is configured to shield the from-channel 727. Preferably, an obtuse angle is formed between the first trigger portion 801 and the second trigger portion 802, and the obtuse angle faces the first head housing 14. In other embodiments, an acute angle or a right angle may be formed between the first trigger portion 801 and the second trigger portion 802.

[0227] Reference ​ And in combination with ​, the execution part 803 extends a baffle 8030 towards the opening 7262 of the main channel 726. When the execution part 803 tilts towards the wrench 710, the baffle 8030 can close the opening 7262 of the main channel 726 to close the secondary channel 727, so that the guide 620 cannot enter the secondary channel 727 from the opening 7262. At this time, the guide 620 can only move along the baffle 8030 from the end 725 of the main channel 726 to the start 721 of the main channel 726.

[0228] When the path switching part 8 rotates relative to the wrench 710 around the second pin shaft 13 at the pivot part 800, the first trigger part 801 rotates towards the inner wall of the first head housing 14 or towards the wrench 710. When the first trigger part 801 rotates towards the inner wall of the first head housing 14, the second trigger part 802 rotates towards the wrench 710. When the first trigger part 801 rotates towards the wrench 710, the second trigger part 802 rotates towards the inner wall of the first head housing 14.

[0229] The positioning mechanism includes a protrusion 911, a first recess 912 and a second recess 913. Refer to ​ , the protrusion 911 is arranged at the pivot part 800 of the path switching part 8. When the path switching part 8 rotates around the second pin shaft 13, the protrusion 911 rotates synchronously therewith. Refer to ​ , both the first recess 912 and the second recess 913 are arranged on the wrench body 711. The protrusion 911 has elasticity, so that the protrusion 911 can move from the first recess 912 into the second recess 913, and can also move from the second recess 913 into the first recess 912.

[0230] When the protrusion 911 is located in the second recess 913, the second trigger part 802 tilts towards the wrench 710, the first trigger part 801 tilts towards the inner wall of the first head housing 14, and the execution part 803 arranged on the first trigger part 801 also tilts towards the inner wall of the first head housing 14, so that the execution part 803 gives way to the secondary channel 727. At this time, the path switching part 8 is in the open state.

[0231] When the protrusion 911 is located in the first recess 912, the second trigger part 802 tilts towards the inner wall of the first head housing 14, the first trigger part 801 tilts towards the wrench 710, and the execution part 803 arranged on the first trigger part 801 also tilts towards the wrench 710, so that the execution part 803 closes the secondary channel 727. At this time, the path switching part 8 is in the closed state.

[0232] When there is no external force acting thereon, the protrusion 911 can be operably received within the second recess 913 or the first recess 912, and the protrusion 911 can be limited by the second recess 913 or the first recess 912, so that the path switching member 8 cannot rotate about the second pin shaft 13, thereby keeping the path switching member 8 in the open state or the closed state all the time.

[0233] During the movement of the wrench 710, relative movement occurs between the path switching member 8 and the path driving member. The path driving member can drive the path switching member 8 to switch between the open state and the closed state. Specifically, the path driving member drives the path switching member 8 to rotate relative to the wrench 710 about the second pin shaft 13, so that the protrusion 911 moves between the second recess 913 and the first recess 912. When the protrusion 911 of the path switching member 8 is operably received within the second recess 913, the path switching member 8 needs to rotate about the second pin shaft 13 in a first preset direction by a first angle to move the protrusion 911 into the first recess 912. When the protrusion 911 of the path switching member 8 is operably received within the first recess 912, the path switching member 8 needs to rotate about the second pin shaft 13 in a second preset direction by a second angle to move the protrusion 911 into the second recess 913. The first preset direction and the second preset direction are opposite to each other. For example, when the first preset direction is the clockwise direction, the second preset direction is the counterclockwise direction.

[0234] Reference ​ As shown in the figure, the path driving member includes a first guiding rib 901 and a second guiding rib 902, and both the first guiding rib 901 and the second guiding rib 902 are disposed on the inner wall of the first head housing 14. The first guiding rib 901 has a first guiding inclined surface 9011, and the second guiding rib 902 has a second guiding inclined surface 9021.

[0235] At the initial moment, the user does not operate the wrench 710, and the wrench 710 is in the open position. At this time, the path switching member 8 is located at the second guiding rib 902 and is disengaged from the first guiding rib 901. In response to the movement of the wrench 710 from the open position to the closed position, the wrench 710 can drive the path switching member 8 to move from the second guiding rib 902 to the first guiding rib 901. When the wrench 710 is in the closed position, the path switching member 8 is located at the first guiding rib 901, and the path switching member 8 is disengaged from the second guiding rib 902. In response to the movement of the wrench 710 from the closed position to the open position, the wrench 710 can drive the path switching member 8 to move from the first guiding rib 901 to the second guiding rib 902. Specifically: Reference ​, at the initial moment, when the wrench 710 is in the open position, the first trigger portion 801 is disengaged from the first guiding rib 901, the second trigger portion 802 is located between the second guiding rib 902 and the wrench 710, the convex portion 911 is operably received within the second recess 913, the second trigger portion 802 is inclined towards the wrench 710, the first trigger portion 801 is inclined towards the inner wall of the first head housing 14, and the actuator portion 803 is inclined towards the inner wall of the first head housing 14. The actuator portion 803 clears the through-channel 727, and the path switching member 8 is in the open state.

[0236] Reference ​ , before the wrench 710 moves from the open position to the closed position, the wrench 710 drives the path switching member 8 to move from the second guiding rib 902 towards the first guiding rib 901. When the first trigger portion 801 moves onto the first guiding inclined surface 9011 of the first guiding rib 901, the first trigger portion 801 continues to move along the first guiding inclined surface 9011. The first guiding inclined surface 9011 exerts a force on the first trigger portion 801, causing the path switching member 8 to start rotating around the second pin shaft 13 in the first preset direction. Since it has not rotated by a sufficient angle, that is, it has not rotated by the first angle, the convex portion 911 is still operably received within the second recess 913, and the second recess 913 positions the convex portion 911. The path switching member 8 remains in the open state all the time. Before the wrench 710 moves from the open position to the closed position in the forward movement, the guiding member 620 can move within the through-channel 727.

[0237] Reference ​ , at the moment when the wrench 710 reaches the closed position, the first trigger portion 801 of the path switching member 8 moves along the first guiding inclined surface 9011 to between the first guiding rib 901 and the wrench 710, causing the path switching member 8 to rotate around the second pin shaft 13 by the first angle in the first preset direction. The convex portion 911 moves from the second recess 913 to within the first recess 912, and the path switching member 8 switches to the closed state.

[0238] Reference ​, during the process that the wrench 710 resets from the closed position to the open position and before reaching the open position, driven by the wrench 710, the path switching member 8 moves from the first guiding rib 901 to the second guiding rib 902. When the second triggering portion 802 moves onto the second guiding slope 9021 of the second guiding rib 902, the second triggering portion 802 continues to move along the second guiding slope 9021. The second guiding slope 9021 applies a force to the second triggering portion 802, causing the path switching member 8 to start rotating around the second pin shaft 13 in the second preset direction. Since it has not rotated enough angle, that is, has not rotated the second angle, the convex portion 911 is still operably received within the first concave portion 912, and the first concave portion 912 limits the convex portion 911, and the path switching member 8 always remains in the closed state. During the process that the wrench 710 resets from the closed position to the open position and before reaching the open position, the guiding member 620 cannot move out of the channel 727.

[0239] Reference ​ , when the wrench 710 resets from the closed position to the open position and reaches the open position, the second triggering portion 802 of the path switching member 8 moves along the second guiding slope 9021 to between the second guiding rib 902 and the wrench 710, causing the path switching member 8 to rotate around the second pin shaft 13 in the second preset direction by the second angle. The convex portion 911 moves from the first concave portion 912 to within the second concave portion 913, and the path switching member 8 switches to the open state.

[0240] In summary, in the clip bin 1 of the present disclosure, the clip 2 remains in the stretched state before use. When in use, a force is applied to the first bin body 100 and / or the second bin body 110, causing the clip 2 to be compressed from the stretched state to the compressed state. Thereby, the time for the clip 2 to be compressed is reduced, enabling the clip 2 to return to the stretched state when moving to the end effector 3 of the clamping pliers, so that the clip 2 can be used normally, ensuring the normal clamping of the clamping pliers. When the two bin bodies approach each other, the convex portions of the clip arms are held in the limiting portions to limit the movement of the clip arms along the second direction or the direction opposite to the second direction, preventing unexpected twisting deformation of the clip arms of the clip 2, enabling the clip 2 to be stably compressed to ensure its normal use.

[0241] In summary, in the clamping pliers of the present disclosure, the distal end of the clip feeding mechanism has a recess 414, and the recess 414 is axially aligned with the limiting groove 10. In response to the clip feeding mechanism moving towards the distal end, the clip feeding mechanism pushes the clip 2 to move distally from the clip bin 1 and move through the clip feeding channel 301 to between the two clamping arms. The convex portion of the clip 2 falls into the recess 414 of the clip feeding mechanism and reaches between the two clamping arms through the limiting groove 10, thereby being able to limit the distal movement of the clip 2, preventing the clip 2 from flipping during the movement and preventing the clip 2 from detaching from the end effector 3, enabling the clip 2 to stably move to the end effector 3.

[0242] It should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0243] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present disclosure, and they are not intended to limit the protection scope of the present disclosure. Any equivalent embodiments or changes made without departing from the technical spirit of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A clamping bin, characterized in that, Comprising a first bin body, a second bin body and a clip, the first bin body and the second bin body are oppositely arranged along a first direction and movably connected, and the clip is located between the first bin body and the second bin body; the clip includes two clip arms, one of the clip arms abuts against the first bin body, and the other clip arm abuts against the second bin body; each clip arm has a convex portion. At least one of the first bin body and the second bin body has a limiting portion, and the limiting portion is configured to accommodate the convex portion of the clip arm that abuts against the bin body where it is located. In response to applying a force to the first bin body and / or applying a force to the second bin body, so that the first bin body and the second bin body approach each other, and then the two clip arms approach each other, causing the clip to be compressed from the extended state to the compressed state, and the convex portion remains in the limiting portion to restrict the clip arm from moving along a second direction or the direction opposite to the second direction.

2. The clamping bin according to claim 1, characterized in that, The limiting portion includes two limiting surfaces, and the two limiting surfaces are oppositely arranged along the second direction, and the convex portion is held between the two limiting surfaces.

3. The clamping bin according to claim 1, characterized in that, The limiting portion has a notch portion. In response to the clip moving along a third direction to disengage from the clip bin, the convex portion of the clip disengages from the limiting portion along the third direction through the notch portion.

4. The clamping bin according to claim 1, wherein The clip bin includes at least two clips, and at least two clips are stacked in a staggered manner along the second direction so that the convex portions of adjacent clips are staggered along the second direction; the limiting portion includes a stop wall, and the convex portion located in the limiting portion and the stop wall are arranged in sequence along the third direction. The stop wall has a notch portion. When the convex portion of the clip is aligned with the notch portion along the third direction, in response to the clip moving along the third direction to disengage from the clip bin, the convex portion located in the limiting portion disengages from the limiting portion along the third direction through the notch portion.

5. The clamping bin according to claim 1, wherein The limiting portion further includes a supporting surface, and the supporting surface and the convex portion located in the limiting portion are arranged in sequence along the third direction. In response to applying a force to the first bin body and / or applying a force to the second bin body, the first bin body and the second bin body approach each other, causing the clip to be compressed from the extended state to the compressed state, and the supporting surface restricts the convex portion located in the limiting portion from moving in the direction opposite to the third direction.

6. The clamping bin according to claim 1, characterized in that, The first bin body has a first engaging member and a second engaging member, and the second bin body has a fastening portion. The clip bin has a first state and a second state. In the first state, the first engaging member is engaged with the fastening portion, and the clip is in the extended state. In response to applying a force to the first bin body and / or the second bin body, the first bin body and the second bin body approach each other, causing the first engaging member to move to disengage from the fastening portion and the second engaging member to move to engage with the fastening portion, and the clip bin switches to the second state, and the clip is compressed from the extended state to the compressed state.

7. The clamping bin according to claim 6, characterized in that, The first engaging member has a first engaging portion. In the first state, one of the clamping arms of the clip abuts against the first bin body to apply a force along the first direction to the first bin body, and the other clamping arm abuts against the second bin body to apply a force along the direction opposite to the first direction to the second bin body, so that the first engaging portion abuts against the fastening portion along the first direction, thereby enabling the first engaging member to be clamped with the fastening portion.

8. The clamping bin according to claim 6, wherein The second engaging member has a second engaging portion. In the second state, the second engaging portion abuts against the fastening portion along the first direction, thereby enabling the second engaging member to be clamped with the fastening portion.

9. The bin clamping device according to claim 6, wherein The second bin body includes a groove body, and the fastening portion is disposed on the inner wall of the groove body; the first engaging member has a first engaging portion, the second engaging member has a second engaging portion, and the first engaging portion and the second engaging portion are arranged in sequence along the first direction; In the first state, the first engaging portion is inserted into the groove body and abuts against the fastening portion along the first direction. In response to applying a force to the first bin body and / or the second bin body, the first engaging portion moves in the direction opposite to the first direction in the groove body to disengage from the fastening portion, and the second engaging portion moves to be inserted into the groove body and abuts against the fastening portion along the first direction.

10. The clamping bin according to claim 7, characterized in that, The first engaging member further includes a first arm portion extending along the first direction, the first engaging portion is disposed on the first arm portion, and the first arm portion has elasticity.

11. The holding bin according to claim 8, wherein, The second engaging member further includes a second arm portion extending along the first direction, the second engaging portion is disposed on the second arm portion, and the second arm portion has elasticity.

12. The clamping bin according to claim 1, characterized in that, The clip bin includes at least two clips, and at least two of the clips are stacked in a staggered manner along the second direction so that the convex portions of adjacent clips are staggered along the second direction.

13. The clamping bin according to claim 12, characterized in that, The clip further includes a connecting portion, and the two clamping arms are connected via the connecting portion, and the connecting portion is provided with a convex portion.

14. The bin clamping device according to claim 13, wherein The convex portion of one of the clamping arms abuts against the first bin body, and the convex portions of the other clamping arm and the connecting portion both abut against the second bin body.

15. The clamping bin according to claim 12, characterized in that, The clip bin further includes a biasing assembly, and the biasing assembly includes a biasing member and a pushing member; one end of the biasing member is connected to the first bin body or the second bin body, and the other end is connected to the pushing member to bias the pushing member toward the first clip in the positive direction along the second direction and apply a force along the second direction to the clip.

16. The clamping bin according to claim 12, characterized in that, The clip bin has a first state and a second state; when the clip bin is in the first state, the clips are in the extended state; in response to applying a force to the first bin body and / or the second bin body, the first bin body and the second bin body move closer to each other so that the clip bin switches from the first state to the second state, thereby enabling the clips to be compressed from the extended state to the compressed state; When the clip bin is in the second state, a clamping cavity is formed between the first bin body and the second bin body, the clamping cavity includes a first cavity and a second cavity arranged in sequence along the second direction, and the clip bin has an outlet communicating with the second cavity; In response to a force being applied to the clip in the second cavity, the clip in the second cavity moves along a third direction via the outlet to disengage from the clip magazine.

17. The bin clamp according to claim 16, characterized in that, The clip magazine further includes a biasing assembly located in the first cavity. The biasing assembly abuts against the first clip in the positive direction along the second direction to apply a force along the second direction to the clip. In response to the clip in the second cavity disengaging from the clip magazine, the biasing assembly biases the clip in the first cavity to move it into the second cavity.

18. The clamping bin according to claim 16, wherein Both the first housing and the second housing have a first notch and a second notch. When the clip magazine is in the second state, the two first notches form the inlet of the clip magazine, and the two second notches form the outlet of the clip magazine.

19. A clip applicator, characterized in that, Comprising an end effector and a clip magazine according to any one of claims 1-18, the clip magazine being detachably connected to the end effector.

20. A clip applicator, characterized in that, Comprising: A clip magazine that houses clips. The clips have a connecting portion and two clip arms connected via the connecting portion. The connecting portion has a convex portion. An end effector that includes a pivot member and two jaw arms pivotally connected to the pivot member. The clip magazine is detachably connected to the pivot member. The pivot member has a clip feeding channel. A limiting groove that is at least partially provided on the inner wall surrounding the clip feeding channel. A clip feeding mechanism whose distal end has a recessed portion. In response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes the clip to move distally from the clip magazine and through the clip feeding channel to between the two jaw arms. The convex portion of the clip falls into the recessed portion of the clip feeding mechanism and reaches between the two jaw arms via the limiting groove.

21. The clip applicator according to claim 20, wherein, The jaw arm has a convex portion. The clip magazine has a first inner wall and a second inner wall opposite to each other along a first direction. The convex portion of one of the jaw arms abuts against the first inner wall, and the convex portions of the other jaw arm and the connecting portion both abut against the second inner wall.

22. The clip applicator according to claim 21, wherein, The clip magazine further has a third inner wall and a fourth inner wall opposite to each other along a second direction. The limiting groove is partially provided on the fourth inner wall. The fourth inner wall is further provided with a transition portion. One end of the transition portion extends to the second inner wall, and the other end extends into the limiting groove. In response to the clip feeding mechanism pushing the clip to move distally, the convex portion of the connecting portion moves along the transition portion into the limiting groove and falls into the recessed portion of the clip feeding mechanism.

23. The clip applicator according to claim 21, wherein, The inner wall of the clip feeding channel further has a first stop portion and a second stop portion. Each jaw arm has a guiding portion. The proximal end of the first stop portion is connected to the first inner wall, and the distal end of the first stop portion is connected to the guiding portion of one of the jaw arms. The proximal end of the second stop portion is connected to the second inner wall, and the distal end of the second stop portion is connected to the guiding portion of the other jaw arm. In response to the clip feeding mechanism pushing the clip to move distally from the clip magazine, the convex portion of one of the clip arms sequentially moves along the first inner wall, the first stop portion, and the guiding portion of one of the clamping arms, and the convex portion of the other clip arm sequentially moves along the second inner wall, the second stop portion, and the guiding portion of the other clamping arm until the clip reaches the ready position in the end effector.

24. The clip applicator according to claim 23, characterized in that, Each bottom of the clamping arms further has a receiving portion located at the distal end of the guiding portion of the clamping arm where it is located; In response to the clip feeding mechanism pushing the clip to move distally from the clip magazine, the convex portion of one of the clip arms enters the receiving portion at the distal end of the guiding portion of one of the clamping arms along the guiding portion of one of the clamping arms, and the convex portion of the other clip arm enters the receiving portion at the distal end of the guiding portion of the other clamping arm along the guiding portion of the other clamping arm, so that the clip reaches the ready position.

25. The clip applicator according to claim 20, wherein, The clip feeding mechanism includes a transmission assembly and a clip feeding block; the clip feeding block is arranged at the distal end of the transmission assembly, and the recessed portion is arranged on the clip feeding block; in response to the transmission assembly moving distally, the clip feeding block pushes the clip to move distally.

26. The clip applicator according to claim 20, characterized in that, When the clip is in the ready position, in response to the end effector closing, the clip is compressed, and the convex portion of the connecting portion is located on the distal side of the clip feeding channel.

27. The clip applicator according to claim 20, wherein, At least two clips are stacked in the clip magazine in a staggered manner in the second direction, and the convex portions of adjacent clips are staggered in the second direction.

28. The clip applicator according to claim 20, wherein, At least two clips are stacked in the clip magazine in the second direction; The clip magazine has a clip cavity, and the clip cavity includes a first cavity and a second cavity arranged in sequence in the second direction; one of the clips is accommodated in the second cavity, and the remaining clips are accommodated in the first cavity; The second cavity is communicated with the clip feeding channel. In response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes the clip in the second cavity to move distally from the clip magazine and move to between the two clamping arms through the clip feeding channel.

29. The clip applicator according to claim 20, wherein The clip magazine includes a magazine body, and at least two clips are stacked in the magazine body in the second direction; the clip magazine further includes a biasing assembly, and the biasing assembly includes a biasing member and a pushing member; one end of the biasing member is connected to the magazine body, and the other end is connected to the pushing member to bias the pushing member towards the first clip in the positive direction along the second direction.

30. A clip applicator, characterized in that, Comprising: A clip magazine including at least two clips, the clips having a connecting portion and two clip arms connected via the connecting portion, and both the clip arms and the connecting portion having convex portions; at least two clips are stacked in a staggered manner in the second direction so that the convex portions of adjacent clips are staggered in the second direction; An end effector including a pivot member and two clamping arms pivotally connected to the pivot member, and the clip magazine is detachably connected to the pivot member; the pivot member has a clip feeding channel; A limiting groove, at least part of which is arranged on the inner wall surrounding the clip feeding channel; A clip feeding mechanism configured to drive the clip to move; In response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes the clip to move distally from the clip bin and move through the clip feeding channel to between the two clamping arms, and the convex portion of the connecting portion of the clip reaches between the two clamping arms via the limiting groove.

31. The clip applicator according to claim 30, wherein, The distal end of the clip feeding mechanism has a recess; in response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes the clip to move distally from the clip bin and move through the clip feeding channel to between the two clamping arms, and the convex portion of the clip falls into the recess of the clip feeding mechanism and reaches between the two clamping arms via the limiting groove.

32. The clip applicator according to claim 30, wherein The clip bin has a first inner wall and a second inner wall opposite to each other in a first direction; The convex portion of one of the clamping arms abuts against the first inner wall, and the convex portions of the other clamping arm and the connecting portion both abut against the second inner wall.

33. The clip applicator according to claim 32, wherein, The clip bin further has a third inner wall and a fourth inner wall opposite to each other in a second direction; The limiting groove is partially provided on the fourth inner wall, and the fourth inner wall is further provided with a transition portion, one end of the transition portion extends to the second inner wall, and the other end extends into the limiting groove; In response to the clip feeding mechanism pushing the clip to move distally, the convex portion of the connecting portion moves along the transition portion into the limiting groove.

34. The clip applicator according to claim 32, wherein, The inner wall of the clip feeding channel further has a first stop portion and a second stop portion; each clamping arm has a guiding portion; The proximal end of the first stop portion is connected to the first inner wall, and the distal end of the first stop portion is connected to the guiding portion of one of the clamping arms; the proximal end of the second stop portion is connected to the second inner wall, and the distal end of the second stop portion is connected to the guiding portion of the other clamping arm; In response to the clip feeding mechanism pushing the clip to move distally from the clip bin, the convex portion of one of the clamping arms moves sequentially along the first inner wall, the first stop portion and the guiding portion of one of the clamping arms, and the convex portion of the other clamping arm moves sequentially along the second inner wall, the second stop portion and the guiding portion of the other clamping arm until the clip reaches the preparation position in the end effector.

35. The clip applicator according to claim 34, characterized in that, The bottom of each clamping arm further has a receiving portion, and the receiving portion is located at the distal end of the guiding portion of the clamping arm where it is located; In response to the clip feeding mechanism pushing the clip to move distally from the clip bin, the convex portion of one of the clamping arms enters the receiving portion at the distal end of the guiding portion of one of the clamping arms, and the convex portion of the other clamping arm enters the receiving portion at the distal end of the guiding portion of the other clamping arm, so that the clip reaches the preparation position.

36. The clip applicator according to claim 30, characterized in that, The clip feeding mechanism includes a transmission assembly and a clip feeding block; the clip feeding block is arranged at the distal end of the transmission assembly, and the recess is arranged on the clip feeding block; in response to the transmission assembly moving distally, the clip feeding block pushes the clip to move distally.

37. The clip applicator according to claim 30, characterized in that, When the clip is in the preparation position, in response to the end effector closing, the clip is compressed, and the convex portion of the connecting portion is located on the distal side of the clip feeding channel.

38. The clip applicator according to claim 30, wherein At least two of the clips are stacked in the clip magazine in a staggered manner along the second direction, and the convex portions of adjacent clips are staggered along the second direction.

39. The clip applicator according to claim 30, wherein At least two of the clips are stacked in the clip magazine along the second direction; The clip magazine has a clip cavity, and the clip cavity includes a first cavity and a second cavity arranged in sequence along the second direction; one of the clips is accommodated in the second cavity, and the remaining clips are accommodated in the first cavity; The second cavity is in communication with the clip feeding channel. In response to the clip feeding mechanism moving distally, the clip feeding mechanism pushes the clip in the second cavity to move distally from the clip magazine and move to between the two clamping arms via the clip feeding channel.

40. The clip applicator according to claim 30, wherein, At least two of the clips are stacked in the clip magazine along the second direction; the clip magazine further includes a biasing assembly, and the biasing assembly includes a biasing member and a pushing member; one end of the biasing member is connected to the clip magazine, and the other end is connected to the pushing member to bias the pushing member towards the first clip in the positive direction along the second direction.

Images