Suture assembly

Abstract

The application discloses a stapler assembly, the safety mechanism of which comprises a first position and a second position; in the first position, the safety mechanism is combined with a first operating member to lock the first operating member, thereby preventing the first operating member from driving a stapling needle to move; the safety mechanism is separated from a third operating member to unlock a clamping mechanism, and in response to the third operating member being operated, a clamping member moves from a connecting position connected with a sleeve assembly to a separating position separated from the sleeve assembly to separate the stapler from the sleeve assembly; in the second position, the safety mechanism is combined with the third operating member to lock the clamping mechanism to keep the clamping member connected with the sleeve assembly; the safety mechanism is separated from the first operating member to unlock the first operating member, and in response to the movement of the first operating member, the stapling needle performs a needle ejection movement. The stapler assembly of the application can ensure that the clamping mechanism is not mistakenly operated when the stapling needle is driven to move, so that the stapler is not separated from the sleeve assembly, and the normal operation of the surgery is effectively ensured.

Description

Technical Field

[0001] This invention relates to the field of surgical instrument technology, and in particular to a suture assembly. Background Technology

[0002] Currently, laparoscopic surgery is widely accepted in surgical procedures. In minimally invasive laparoscopic surgery, the surgeon typically makes a small incision in the patient's abdomen, then aligns the trocar tip with the incision and rotates it back and forth while moving the trocar downwards, allowing the core assembly to guide the trocar through the abdominal skin. The core assembly is then removed, and the abdominal cavity is inflated using the trocar cannula to establish and maintain pneumoperitoneum. Whether it's the trocar cannula used to establish and maintain pneumoperitoneum or other trocar cannulas, they all create a channel for instruments to enter and exit the abdominal cavity. Anastomosing devices or other surgical instruments can be inserted and removed through the trocar cannula for surgical procedures. After the surgery, the trocar site needs to be sutured. Existing sutures use a movable mechanism for detachable connection to the cannula. However, in actual surgery, the suture is fixed to the trocar cannula. If the surgeon accidentally touches this movable mechanism, the suture may detach from the trocar cannula, affecting the surgeon's operation and even the progress of the surgery. Therefore, improvements are necessary. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention aims to provide a suture assembly, which is achieved through the following technical solution:

[0004] A suture assembly includes a suture and a cannula assembly; the suture includes a snap-fit ​​mechanism, a first actuation member, a safety mechanism, and a suture needle; the snap-fit ​​mechanism includes a third actuation member and a snap-fit ​​element connected to the third actuation member, the suture being detachably connected to the cannula assembly via the snap-fit ​​element; the first actuation member drives the suture needle; the safety mechanism includes a first position and a second position; in the first position, the safety mechanism engages with the first actuation member to lock the first actuation member, thereby preventing the first actuation member from driving the suture needle; the safety mechanism disengages from the third actuation member to unlock the snap-fit ​​mechanism, and in response to the third actuation member being actuated, the snap-fit ​​element moves from a connected position connected to the cannula assembly to a disengaged position separated from the cannula assembly to disengage the suture from the cannula assembly; in the second position, the safety mechanism engages with the third actuation member to lock the snap-fit ​​mechanism, keeping the snap-fit ​​element connected to the cannula assembly; the safety mechanism disengages from the first actuation member to unlock the first actuation member, and in response to movement of the first actuation member, the suture needle performs a needle withdrawal movement.

[0005] Furthermore, the suture device also includes a wing that, in the first position, moves from a closed position to an open position in response to movement of the first actuating member; when the wing is in the open position, the first actuating member engages with the locking mechanism to be locked by the locking mechanism, thereby preventing the first actuating member from driving the suture needle.

[0006] Furthermore, the suture device also includes a first component connected to the first operating member; the locking mechanism includes a second component and a third component; in the first position, in response to the first operating member performing a first movement, the flap moves from the closed position to the open position, and the first component moves from a disengaged position separated from the second component to an engaged position engaged with the second component to prevent the suture needle from moving; and the third component disengages from the third operating member to unlock the locking mechanism; in the second position, the third component engages with the third operating member to lock the locking mechanism, and the first component disengages from the second component, and in response to a second movement of the first operating member, the suture needle performs a needle withdrawal movement.

[0007] Furthermore, the first component is a first protrusion extending downward along the axial direction, the second component is a second protrusion extending upward along the axial direction, and the third component is a third protrusion disposed on the periphery of the body of the safety mechanism; the lower surface of the first protrusion is engaged with the upper surface of the second protrusion, so that the first component is engaged with the second component.

[0008] Furthermore, the first operating member drives the winglet to move from the closed position to the open position by a first movement along a first direction, and the first operating member drives the suture needle to move by a second movement along the first direction; the safety mechanism also includes a second operating member, and in response to the movement of the second operating member along a second direction, the safety mechanism moves from the first position to the second position.

[0009] Furthermore, the suture device also includes a wing, and the locking mechanism has an initial position in which the first operating member engages with the locking mechanism, and the locking mechanism disengages from the third operating member to unlock the latching mechanism; in response to the locking mechanism moving from the initial position to the first position, the first operating member switches from a first engaged state engaged with the locking mechanism to a first disengaged state disengaged from the locking mechanism; in the first disengaged state, in response to the movement of the first operating member, the wing moves from a closed position to an open position; when the wing is in the open position, the first operating member is in a second engaged state engaged with the locking mechanism to be locked by the locking mechanism, thereby preventing the first operating member from driving the suture needle.

[0010] Furthermore, the suture device also includes a first component connected to the first operating member; the locking mechanism includes a second component and a third component; one of the first component and the second component includes a first mating surface, and the other includes a first limiting surface and a second limiting surface; in the initial position, the third component separates from the third operating member to unlock the latching mechanism, and the first mating surface engages with the first limiting surface to place the first operating member in the first engaged state; in the first position, the third component separates from the third operating member to unlock the latching mechanism, and the first mating surface separates from the first limiting surface to place the first operating member in the first disengaged state; when the flap is in the open position, the first mating surface engages with the second limiting surface to place the first operating member in the second engaged state; in the second position, the third component engages with the third operating member to lock the latching mechanism; the first mating surface separates from the second limiting surface to place the first operating member in the second disengaged state.

[0011] Furthermore, the first component is a first protrusion extending downward along the axial direction, and the lower surface of the first protrusion is a first mating surface. The second component is a second protrusion extending upward along the axial direction in a stepped shape, and the upper surface of the second protrusion on the proximal side is the first limiting surface, and the upper surface on the distal side is the second limiting surface.

[0012] Furthermore, the first component is a first protrusion extending downward along the axial direction in a stepped shape, the lower surface of the first protrusion located on the distal side is the first limiting surface, and the lower surface located on the proximal side is the second limiting surface; the second component is a second protrusion extending upward along the axial direction, and the upper surface of the second protrusion is the first mating surface.

[0013] Furthermore, the third component is characterized as a third protrusion disposed on the periphery of the body of the insurance mechanism.

[0014] Furthermore, the first operating member drives the winglet to move from the closed position to the open position through a first movement along a first direction, and the first operating member drives the suture needle to move through a second movement along the first direction; the safety mechanism also includes a second operating member, and in response to the movement of the second operating member along a second direction, the safety mechanism moves sequentially from the initial position to the first position and the second position.

[0015] Furthermore, the first direction is axial, and the second direction is circumferential.

[0016] Furthermore, both the first and second movements are linear movements, while the movement along the second direction is a rotational movement.

[0017] Furthermore, the suture device also includes a drive mechanism, through which the first operating member drives the flap and the suture needle to move; the drive mechanism includes a first drive part and a second drive part, which are axially spaced apart, the first drive part being used to drive the flap to move, and the second drive part being used to drive the suture needle to move.

[0018] Furthermore, the first driving part includes a first tooth and a second tooth, and the second driving part includes a third tooth and a fourth tooth; the suture includes two flaps and two suture needles, each flap includes a flap gear, and each suture needle includes a suture needle gear. The first tooth and the second tooth are used to drive one flap gear respectively, thereby driving the two flaps to move. The third tooth and the fourth tooth are used to drive one suture needle gear respectively, thereby driving the two suture needles to move.

[0019] Furthermore, the first tooth and the second tooth are spaced apart laterally, and the third tooth and the fourth tooth are located between the first tooth and the second tooth in the lateral direction.

[0020] Furthermore, the suture needle and the wing are arranged coaxially in the transverse direction.

[0021] Furthermore, the third operating element is a button, which is pressed to switch the snap-fit ​​element from the connected position with the sleeve assembly to the disconnected position with the sleeve assembly.

[0022] Furthermore, the latching mechanism also includes a reset member, which is connected to the third operating member. When the third operating member is operated, the reset member is compressed and stores energy.

[0023] Furthermore, the snap-fit ​​element includes a snap hook, and the cannula assembly includes a snap groove, the snap hook engaging with the snap groove to connect the suture device to the cannula assembly.

[0024] Furthermore, the first mating surface abuts against the first limiting surface along the axial direction so that the first mating surface and the first limiting surface are engaged, and the first mating surface abuts against the second limiting surface along the axial direction so that the first mating surface and the second limiting surface are engaged.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: When the safety mechanism is in the first position, the safety mechanism separates from the operating member to unlock the locking mechanism. In response to the operation of the operating member, the locking member moves from the position connected to the cannula assembly to the position separated from the cannula assembly, thereby separating the suture device from the cannula assembly. The safety mechanism cooperates with the first operating member to lock the first operating member, thereby preventing the first operating member from driving the suture needle. When the safety mechanism is in the second position, the safety mechanism cooperates with the operating member to lock the locking mechanism, keeping the locking member connected to the cannula assembly. The safety mechanism separates from the first operating member to unlock the first operating member. In response to the operation of the first operating member, the suture needle performs a needle withdrawal movement. Due to the presence of the safety mechanism, when the suture device and the cannula assembly are separable, the movement of the first operating member is restricted and cannot drive the suture needle. Only when the safety mechanism cooperates with the operating member to lock the locking mechanism, keeping the locking member connected to the cannula assembly, can the first operating member be operated to drive the suture needle. This design ensures that the locking mechanism will not be accidentally activated when the suture needle is being driven, thus preventing the suture device from separating from the cannula assembly and effectively guaranteeing the normal progress of the surgery. Simultaneously, the safety mechanism serves to lock and unlock both the first operating element and the locking mechanism, making the entire suture device assembly simple in structure and safe and reliable. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the suture device according to the first embodiment of the present invention;

[0027] Figure 2a This is an exploded perspective view of the suture device according to the first embodiment of the present invention;

[0028] Figure 2b This is a schematic diagram of the structure of a portion of the first operating element according to the first embodiment of the present invention;

[0029] Figure 2c This is a schematic diagram of the structure of the insurance institution according to the first embodiment of the present invention;

[0030] Figure 2d This is an exploded perspective view of the insurance mechanism, base, and positioning block according to the first embodiment of the present invention;

[0031] Figure 2e This is a schematic diagram of the structure of the positioning block and the base body in the first embodiment of the present invention;

[0032] Figure 2f This is a cross-sectional view of the insurance mechanism, base, and positioning block according to the first embodiment of the present invention;

[0033] Figures 3 to 7 This is a schematic diagram showing the state changes of the first operating member and the safety mechanism of the suture device according to the first embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the transmission mechanism of the suture device according to the first embodiment of the present invention;

[0035] Figure 9 This is an exploded perspective view of part of the driving mechanism of the suture device according to the first embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram of the structure of the drive unit and the actuator cooperating when the wing is in the closed position according to the first embodiment of the present invention;

[0037] Figure 11 This is a structural schematic diagram from another perspective of the cooperation between the driving member and the actuator when the winglet of the first embodiment of the present invention is in the closed position.

[0038] Figure 12 This is a schematic diagram of the structure of the drive component and the actuator cooperating when the drive component drives the wing to move according to the first embodiment of the present invention.

[0039] Figure 13 This is a structural schematic diagram from another perspective of the cooperation between the driving component and the actuator when the driving component drives the winglet to move according to the first embodiment of the present invention.

[0040] Figure 14 This is a schematic diagram of the structure of the drive unit and the actuator cooperating when the wing is in the open position according to the first embodiment of the present invention;

[0041] Figure 15 This is a schematic diagram of the structure of the drive unit and the actuator cooperating when the wing is in the open position according to the first embodiment of the present invention;

[0042] Figure 16 This is a schematic diagram of the structure of the drive component and the actuator when the drive component drives the suture needle to move according to the first embodiment of the present invention.

[0043] Figure 17 This is a structural schematic diagram from another perspective of the cooperation between the driving component and the actuator when the driving component drives the suture needle to move according to the first embodiment of the present invention.

[0044] Figure 18 This is a schematic diagram of the structure of the drive unit and the actuator cooperating when the suture needle completes the needle withdrawal action according to the first embodiment of the present invention.

[0045] Figure 19 This is a structural schematic diagram from another perspective of the cooperation between the driving component and the actuator when the suture needle of the first embodiment of the present invention completes the needle withdrawal action;

[0046] Figure 20This is a perspective exploded view of a portion of the structure of the suture device and the suture storage device according to the first embodiment of the present invention;

[0047] Figure 21a This is a schematic diagram of the suture storage device according to the first embodiment of the present invention from one perspective;

[0048] Figure 21b This is a schematic diagram of the suture storage device according to the first embodiment of the present invention from another perspective;

[0049] Figure 22 This is a top view of the suture storage device according to the first embodiment of the present invention;

[0050] Figure 23 This is a state diagram of the suture storage device when the wing is in the closed position according to the first embodiment of the present invention;

[0051] Figure 24 This is a state diagram of the suture storage device when the wing is in the open position according to the first embodiment of the present invention;

[0052] Figure 25 This is a state diagram of the suture storage device when the suture needle performs the needle withdrawal action according to the first embodiment of the present invention;

[0053] Figure 26 This is a state diagram of the suture storage device when the wing completes the needle withdrawal action according to the first embodiment of the present invention;

[0054] Figure 27 This is a schematic diagram of the suture assembly according to the first embodiment of the present invention;

[0055] Figures 28 to 32 This is a schematic diagram showing the state changes of the first operating member and the safety mechanism of the suture device according to the second embodiment of the present invention;

[0056] Figures 33 to 36 This is a schematic diagram showing the state changes of the first operating member and the safety mechanism of the suture device according to the third embodiment of the present invention;

[0057] Figure 37 This is a schematic diagram of the suture and cannula assembly of the suture assembly according to the fourth embodiment of the present invention;

[0058] Figure 38 is a schematic diagram of a portion of the sleeve assembly according to the fourth embodiment of the present invention;

[0059] Figure 38a is a schematic diagram of the structure of the base body according to the fourth embodiment of the present invention;

[0060] Figure 39 This is a three-dimensional exploded view of a portion of the structure of the suture device according to the fourth embodiment of the present invention;

[0061] Figure 40This is a cross-sectional view of a portion of the structure of the suture assembly when the suture is connected to the cannula assembly according to the fourth embodiment of the present invention;

[0062] Figure 41 This is a cross-sectional view of a portion of the structure of the suture assembly when the suture assembly and the cannula assembly are separated according to the fourth embodiment of the present invention;

[0063] Figure 42 This is a schematic diagram from one perspective of the structure of the insurance mechanism cooperating with the insurance mechanism when the insurance mechanism is in the first position according to the fourth embodiment of the present invention.

[0064] Figure 43 This is a schematic diagram of the structure of the insurance mechanism cooperating with the insurance mechanism from another perspective when the insurance mechanism is in the first position according to the fourth embodiment of the present invention.

[0065] Figure 44 This is a schematic diagram from one perspective of the structure of the insurance mechanism cooperating with the insurance mechanism when the insurance mechanism is in the second position according to the fourth embodiment of the present invention.

[0066] Figure 45 This is a schematic diagram of the structure from another perspective when the insurance mechanism is in the second position according to the fourth embodiment of the present invention, showing the cooperation between the partial locking mechanism and the insurance mechanism.

[0067] Figure 46 This is a schematic diagram from one perspective of the structure of the insurance mechanism cooperating with the insurance mechanism when the insurance mechanism is in the third position according to the fourth embodiment of the present invention.

[0068] Figure 47 This is a schematic diagram of the structure from another perspective when the insurance mechanism is in the third position according to the fourth embodiment of the present invention, showing the cooperation between the partial locking mechanism and the insurance mechanism.

[0069] Figure 48 This is a schematic diagram from one perspective of the structure of the insurance mechanism cooperating with the insurance mechanism when the insurance mechanism is in the initial position according to the fifth embodiment of the present invention;

[0070] Figure 49 This is a structural schematic diagram from another perspective of the cooperation between the partial locking mechanism and the insurance mechanism when the insurance mechanism is in the initial position according to the fifth embodiment of the present invention.

[0071] Figure 50 This is a schematic diagram from one perspective of the structure of the insurance mechanism cooperating with the insurance mechanism when the insurance mechanism is in the first position according to the fifth embodiment of the present invention.

[0072] Figure 51 This is a structural schematic diagram from another perspective of the cooperation between the partial locking mechanism and the insurance mechanism when the insurance mechanism is in the first position according to the fifth embodiment of the present invention.

[0073] Figure 52 This is a schematic diagram from one perspective of the structure of the insurance mechanism cooperating with the insurance mechanism when the insurance mechanism is in the second position according to the fifth embodiment of the present invention.

[0074] Figure 53 This is a structural schematic diagram from another perspective of the cooperation between the partial locking mechanism and the insurance mechanism when the insurance mechanism is in the second position according to the fifth embodiment of the present invention.

[0075] Figure 54 This is a schematic diagram from one perspective of the structure of the insurance mechanism cooperating with the insurance mechanism when the insurance mechanism is in the first position according to the sixth embodiment of the present invention.

[0076] Figure 55 This is a schematic diagram of the structure of the insurance mechanism cooperating with the insurance mechanism from another perspective when the insurance mechanism is in the first position according to the sixth embodiment of the present invention.

[0077] Figure 56 This is a schematic diagram of the structure of the insurance mechanism cooperating with the insurance mechanism from one perspective when the insurance mechanism is in the second position according to the sixth embodiment of the present invention.

[0078] Figure 57 This is a schematic diagram from another perspective showing the cooperation between the partial locking mechanism and the insurance mechanism when the insurance mechanism is in the second position, according to the sixth embodiment of the present invention. Detailed Implementation

[0079] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 merely illustrative and not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0080] It is important to understand that the terms "proximal" and "distal" used in this article are relative to the clinician manipulating the stapler's handle. "Proximal" refers to the part closer to the clinician, while "distal" refers to the part farther away. That is, the handle is proximal, and the jaw assembly is distal. For example, the proximal end of a component refers to the end relatively closer to the handle, and the distal end refers to the end relatively closer to the jaw assembly. The terms "upper" and "lower" are relative to the relative positions of the anvil and stapler seat on the jaw assembly; specifically, the anvil is "upper," and the stapler seat is "lower." However, staplers can be used in many orientations and positions, so these terms expressing relative positional relationships are not limited or absolute.

[0081] In this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a movable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements, such as contact. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. It should be noted that when "connected" or "linked" is preceded by a qualifier, it has the meaning defined by that qualifier, excluding only obviously excluded cases, but not other possible cases. For example, "detachable connection" refers to a detachable connection, excluding an integral part, but movable connections are not excluded.

[0082] The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0083] like Figures 1 to 27As shown, a suture device 100 according to a first embodiment of the present invention includes a first operating member 10, a mandrel assembly 20, a suture needle 30, and a wing 40. The first operating member 10 is used to provide a grip. The proximal end of the mandrel assembly 20 is connected to the first operating member 10, and the distal end of the mandrel assembly 20 is used to pass through a puncture hole. The suture assembly 30 is used to suture the puncture hole, and at least a portion of the suture assembly 30 is disposed on the mandrel assembly 20. The suture device 100 also includes a suture 31, the end of which is connected to the suture needle 30. Movement of the suture needle 30 drives the suture 31 to suture the puncture hole. The wing 40 is used to position the human tissue on both sides of the puncture hole before suturing it. It has a closed position and an open position. In the closed position, it can pass through the puncture hole and enter the human body. In the open position, it positions the human tissue on both sides of the puncture hole. In this embodiment, the wing 40 and the suture needle 30 are connected to the first operating member 10; the first movement of the first operating member 10 along a first direction causes the wing 40 to move from the closed position to the open position; the second movement of the first operating member 10 along the first direction causes the suture needle 30 to move. That is, the wing 40 and the suture needle 30 are driven to move sequentially by the movement of the same operating member (first operating member 10) along the same direction, making the overall structure of the suturer 100 simple and the operation smooth. To prevent accidental operation of the suture needle 30 after the flap 40 is deployed, the suture device 100 further includes a first component 110 and a safety mechanism 130. The first component 110 is connected to the first operating member 10, and the safety mechanism 130 includes a second operating member 131 and a second component 140 connected to the second operating member 131. When the flap 40 is in the open position, the first component 110 and the second component 140 engage to prevent the first operating member 10 from performing a second movement, thereby preventing the suture needle 32 from moving. In response to a third movement of the second operating member 131 along a second direction, the second component 140 separates from the first component 110. After the second component 140 separates from the first component 110, in response to the first operating member 10 performing a second movement, the suture needle 32 performs a needle withdrawal action, thereby driving the suture 31 to suture the puncture hole. In this embodiment, the first direction is axial, and the second direction is circumferential. Axial refers to the axial direction of the core rod assembly 20, and circumferential refers to the direction around the axial direction of the core rod assembly 20.

[0084] The above-described embodiment achieves the following advantages: on the one hand, it ensures the positioning and suturing functions of the suture device are met, resulting in a simple overall structure and smooth operation of the suture device 100; on the other hand, the cooperation between the safety mechanism and the first operating component prevents the suture needle from being misoperated after the flaps are deployed, thus meeting the needs of the surgery and ensuring safety and reliability.

[0085] like Figure 3 and Figure 3aAs shown, further to prevent the winglet 40 from being misoperated, in the initial state, the second component 140 of the safety mechanism 130 engages with the first component 110 to prevent the first movement of the first operating member 10. At this time, the first operating member 10 cannot be operated, the winglet 40 cannot be opened, and the second operating member 131 is in the initial position. The movement of the second operating member 131 along the second direction also includes a fourth movement. In response to the second operating member 131 performing the fourth movement, the second component 140 separates from the first component 110 to allow the first operating member 10 to perform the first movement. Specifically, the second operating member 131 is operated along the second direction to move from the initial position to the intermediate position, where the "intermediate position" refers to the position between the initial position and the final position. When it moves to the intermediate position, as... Figure 4 As shown, the second component 140 separates from the first component 110. At this time, the first operating member 10 is operated so that it performs a first movement along a first direction to drive the flap 40 from the closed position to the open position. When the flap 40 is in the open position, the first component 110 and the second component 140 engage to prevent the first operating member 10 from performing a second movement, thereby preventing the suture needle 32 from moving; in response to the third movement of the second operating member 131 along a second direction, the second component 140 separates from the first component 110; specifically, the second operating member 131 is operated along the second direction to move from the intermediate position to the termination position, and when it moves to the termination position, the second component 140 separates from the first component 110 so that in response to the second movement performed by the first operating member 10, the suture needle 32 can perform a needle withdrawal action.

[0086] like Figures 2c to 2fAs shown, the suture device 100 also includes a base 170 and a positioning block 180 mounted on the base 170. The base 170 includes a first arm 173 and a second arm 175, which are spaced apart and extend upward along the bottom of the base 170, forming a roughly arc shape. There are two first arms 173 symmetrically arranged on the base 170, and two second arms 175 symmetrically arranged on the base 170. The positioning block 180 includes sidewalls 181 on its left and right sides, with each sidewall 181 accommodated between adjacent first arms 173 and second arms 175. The seat 170 also includes two third arms 176 extending upward along the bottom of the seat 170. The two third arms 176 are arranged opposite each other. The body of the safety mechanism 130 includes a peripheral sidewall 133. The outer wall of the peripheral sidewall 133 cooperates with the inner wall of the two third arms 176. When the second operating member 131 is rotated, the outer wall of the peripheral sidewall 133 rotates along the inner wall of the two third arms 176, and the bottom of the peripheral sidewall 133 of the safety mechanism 130 fits against the bottom of the seat 170. The positioning block 180 also includes a limiting element 184 and a limiting spring 183. The body of the positioning block 180 is provided with a mounting hole 182. The inward-facing end of the mounting hole 182 is closed to form a closed end. One end of the limiting spring 183 abuts against the closed end, and the other end is connected to the limiting element 184. The inner wall of a portion of the peripheral sidewall 133 of the insurance mechanism 130 is provided with three limiting grooves 132 that mate with the limiting element 184. These three limiting grooves 132 are arranged adjacent to each other. When the insurance mechanism 130 is in its initial position, as... Figure 2f As shown, the limiting element 184, under the action of the limiting spring 183, abuts against one of the limiting grooves 132 of the safety mechanism 130 to limit the second operating member 131 to the initial position. When the second operating member 131 is rotated from the initial position to the middle position, the limiting element 184 moves toward the mounting hole 182 under the action of the groove wall of the limiting groove 132, and the limiting spring 183 is compressed. When the second operating member 131 moves to the middle position, the limiting element 184, under the action of the limiting spring 183, re-enters another limiting groove 132 adjacent to the previous limiting groove 132 to limit the second operating member 131 to the middle position. Similarly, when the second operating member 131 is rotated from the middle position to the end position, the limiting element 184, under the action of the limiting spring 183, re-enters yet another limiting groove 132 adjacent to the other limiting groove 132 to limit the second operating member 131 to the end position.

[0087] The first and second motions mentioned above are both linear motions, while the motions along the second direction (the third and fourth motions) are rotational motions.

[0088] In this embodiment, as Figures 2a to 7As shown, the first component 110 includes a first mating surface 111, and the second component 140 includes a first limiting surface 141 and a second limiting surface 142. In the initial state, the first mating surface 111 engages with the first limiting surface 141 to prevent the first operating member 10 from performing a first movement, as shown. Figure 3 and Figure 3a As shown; in response to the fourth movement of the second operating member 131, the first mating surface 111 and the first limiting surface 141 switch from the first engaged state to the first disengaged state, as... Figure 4 As shown; in the first separated state, the first operating member 10 is operated to perform a first movement to move the wing 40; when the wing 40 is in the open position, the first mating surface 111 engages with the second limiting surface 142 to prevent the second movement of the first operating member 10, and the suture needle 30 cannot perform the needle withdrawal movement, as shown. Figure 5 As shown; in response to the third movement of the second operating member 131, the first mating surface 111 and the second limiting surface 142 switch from the second engaged state to the second disengaged state, as... Figure 6 As shown; in the second separation state, as Figure 7 As shown, the first operating member 10 is operated to perform a second movement, thereby driving the suture needle 30 to perform a needle extension movement.

[0089] More specifically, the first component 110 is a first protrusion extending downward along the axial direction, and the lower surface of the first protrusion is a first mating surface 111. To make the overall structure of the first operating component 10 compact, the first operating component 10 includes a hollow body, and the first protrusion protrudes from the inner wall of the body of the first operating component 10. The second component 140 is a stepped second protrusion extending upward along the axial direction, and the upper surface of the second protrusion on the proximal side is a first limiting surface 141, and the upper surface on the distal side is a second limiting surface 142. To make the cooperation between the first operating component 10 and the safety mechanism 130 more stable, the first operating component 10 includes two first protrusions, which are symmetrically arranged on the body of the first operating component 10. Correspondingly, the safety mechanism 130 also includes two second protrusions, which are symmetrically arranged on the body of the safety mechanism 130.

[0090] In this embodiment, as Figure 8 and Figure 9As shown, the suture device 100 also includes a drive mechanism 150. The first operating member 10 is connected to the drive mechanism 150, and the drive mechanism 150 drives the flap 40 and the suture needle 30 to move. The drive mechanism 150 includes a body 151, and a first drive member 152 and a second drive member 153 extending axially downward from the body 151. The first drive member 152 includes a first drive portion, and the second drive member 153 includes a second drive portion. The first drive portion and the second drive portion are spaced apart axially. Specifically, the second drive portion is closer to the body 151 of the drive mechanism than the first drive portion. The first drive portion is located at the distal end of the first drive member 152, and the second drive portion is located at the proximal end of the second drive member 153. The first drive portion is used to drive the flap 40 to move, and the second drive portion is used to drive the suture needle 30 to move. When the first operating member 10 is operated to perform a first movement along the axial direction (first direction) of the core rod assembly 20 to drive the drive mechanism 150, the first drive unit cooperates with the wing 40 to drive the wing 40 from the closed position to the open position. When the wing 40 is in the open position, the first operating member 10 is operated again to perform a second movement along the axial direction (first direction) of the core rod assembly 20 to drive the drive mechanism 150. At this time, the second drive unit cooperates with the suture needle 30 to drive the suture needle 30 to perform the needle extension movement. By using the same operating member (first operating member 10) to drive the same drive mechanism 150 along the same direction to achieve the movement of the wing 40 and the suture needle 30, the overall structure is not only simple and compact with high reliability, but also convenient for user operation.

[0091] In this embodiment, as Figure 9 , Figure 11As shown, the first driving part includes a first tooth 154 and a second tooth 156, and the second driving part includes a third tooth 155 and a fourth tooth 157. The wing 40 includes a wing body 41 and a wing gear 42 connected to the wing body 41. The first tooth 154 and the second tooth 156 mesh with the wing gear 42 to drive the wing 40 to move. Specifically, there are two wing 40s, arranged opposite each other. The first tooth 154 drives the wing gear 42 of one wing 40, thereby driving that wing 40 to move. The second tooth 156 meshes with the wing gear 42 of the other wing 40, thereby driving that wing 40 to move. The suture needle 30 includes a transmission rod 32 and a suture arm 33. One end of the transmission rod 32 is drivenly connected to the second driving member 153, and the other end of the transmission rod 32 is connected at an angle to the suture arm 33. The end of the suture arm 33 away from the transmission rod 32 is the suture needle tip 34. Specifically, the suture arm 33 is arc-shaped, and one end of the transmission rod 32 has a suture needle gear 35. The third tooth 155 and the fourth tooth 157 are used to mesh with the suture needle gear 35 to drive the suture needle gear 35 to rotate, thereby driving the suture arm 33 to rotate along the arc-shaped trajectory. Specifically, there are two suture needles 40, which are arranged opposite each other. The third tooth 155 drives the suture needle gear 35 of one of the suture needles 30, thereby driving the suture needle 30 to move, and the fourth tooth 157 drives the suture needle gear 35 of the other suture needle 30, thereby driving the suture needle 30 to move.

[0092] The first drive member 152 and the second drive member 153 are spaced apart in the lateral direction. A first accommodating space and a second accommodating space are formed at the distal ends of the first drive member 152 and the second drive member 154, wherein the first accommodating space is used to accommodate one of the transmission rods 32 and the second accommodating space is used to accommodate the other transmission rod 32. The third tooth 155 and the fourth tooth 157 are located in the lateral direction between the first tooth 154 and the second tooth 156. Taking the suture needle 30 and the wing 40 located on one side of the thickness direction Y of the drive mechanism 150 as an example, their installation with the mandrel assembly 20 is described. Specifically, the suture needle 30 and the wing 40 are arranged coaxially in the transverse direction. The transmission rod 32 of the suture needle 30 passes through the first accommodating space from one side of the thickness direction Y and extends out from the other side of the thickness direction Y. The suture needle gear 35 of the suture needle 30 is housed in the mounting space of the wing 40. The suturer 100 also includes a rotating shaft 36, which passes sequentially through the shaft hole of the wing gear 42, the shaft hole of the suture needle gear 35, and the first mounting hole opposite to the shaft hole of the wing gear 42. Its two ends are rotatably connected to the body of the mandrel assembly 20. Here, the axial direction is the same as the length direction Z of the drive mechanism 150, the transverse direction is the width direction X of the drive mechanism 150, and the direction perpendicular to the axial and transverse directions is the thickness direction Y of the drive mechanism 150. This arrangement makes the overall structure of the suturer 100 more compact and the overall size smaller.

[0093] Figure 10 , Figure 12 , Figure 14 , Figure 16 as well as Figures 18 to 19 This is a schematic diagram of the state changes of the drive mechanism 150 driving the cutting blade 40 and the suture needle 30 from one angle in this embodiment; Figure 11 , Figure 13 , Figure 15 , Figure 17 as well as Figures 18 to 19 This is a schematic diagram showing the state changes of the drive mechanism 150 driving the cutting blade 40 and the suture needle 30 from another perspective in this embodiment. Taking the suture needle 30 and blade 40 located on the side of the drive mechanism 150 in the thickness direction Y as an example, the entire movement process of the suturer 100 is described in conjunction with the cooperation of the first operating member 10 and the safety mechanism 130. Figure 3 , Figure 3a , Figure 10 and Figure 11 As shown, in the initial state, the wing 40 is in the closed position, the wing gear 42 is engaged with the first tooth 154, and the sewing needle gear 35 is not engaged with the third tooth 155. The sewing needle gear 35 and the third tooth 155 are spaced apart axially. Optionally, the second drive unit further includes two grooves respectively disposed at the distal ends of the third tooth 155 and the fourth tooth 157. Each groove has a distal limiting wall 158, which abuts against one of the teeth of the sewing needle gear 35 to hold the sewing needle gear 35 in the initial position. At this time, the first mating surface 111 of the first operating member 10 engages with the first limiting surface 141 of the safety mechanism 130 to prevent the first operating member 10 from performing the first movement, and the wing 40 cannot be driven. When it is necessary to drive the wing 40 to move, the second operating member is operated in the second direction to perform the fourth movement, and the first mating surface 111 and the first limiting surface 141 switch from the first engaged state to the first disengaged state, as shown. Figure 4 As shown; in the first separated state, the first operating member 10 can be driven to perform the first movement, combined with Figure 12 and Figure 13 In response to the first actuating member 10 performing a first movement along a first direction, the first tooth 154 drives the vane gear 42 to move, causing the vane 40 to move from a closed position to an open position. During this process, the sewing needle gear 35 moves proximally relative to the distal limiting wall 158 to approach the third tooth 135, but remains in a non-engaged state with the third tooth 155. Figure 14 and Figure 15 As shown, the vane 40 is in the open position, the vane gear 42 and the first tooth 154 are in a non-meshing state, and the vane gear 42 abuts against the plane of the first driving member 152; Figure 5At this time, the first mating surface 111 of the first operating member moves to engage with the second limiting surface 142 to prevent the second movement of the first operating member 10, and the suture needle 30 cannot perform the needle withdrawal movement. When it is necessary to drive the suture needle 30 to move, the second operating member is operated in the second direction to perform the third movement, and the first mating surface 111 and the second limiting surface 142 switch from the second engaged state to the second disengaged state, as shown below. Figure 6 In response to the third movement of the second operating member 131, the first mating surface 111 and the second limiting surface 142 switch from the second engaged state to the second disengaged state, as described above. Figure 6 As shown; in the second separation state, the first operating member 10 can be driven to perform the second movement, combined with Figure 16 and Figure 17 In response to the first operating member 10 performing a second movement in a first direction, the third tooth 155 meshes with the suture needle gear 35 to drive the suture needle gear 35 to move, causing the suture needle to perform a needle extension movement; during this process, the wing gear 42 always abuts against the plane of the first driving member 152, so that the wing remains in the closed position. Figure 18 and Figure 19 As shown, the suture needle completes the needle withdrawal action, at which point the third tooth 155 remains engaged with the suture needle gear 35.

[0094] In this embodiment, the suture needle tip 34 of the suture needle 30 is detachably connected to the suture arm 33. Further, the suture needle 30 also includes a connecting portion (not shown in the figure), which is detachably connected to the suture needle tip 34 and fixedly connected to the suture arm 33. Specifically, the connecting portion is a cylinder extending along the length of the suture arm 33, with an outer diameter smaller than the outer diameter of the suture arm 33. The core rod assembly 20 has a needle inlet 21. The end of the suture thread 31 is connected to the suture needle tip 34. After the suture needle 30 passes through the wall of the puncture hole, it enters the core rod assembly 20 through the needle inlet 21. A needle receiving component is provided inside the core rod assembly 20. The needle receiving component is located inside the needle inlet 21, and the suture needle tip 34 is fixedly connected to the needle receiving component after entering the needle inlet 21. Specifically, the needle receiving component includes a receiving part, a holding part, and a receiving piece. The holding part is located on both sides of the receiving part, and the receiving piece is located in the center of the receiving part. The receiving part and the holding part are integrally formed. The holding part has a bent shape, and the receiving piece is an elastic mesh piece or an elastic perforated piece with a hollow structure, used to hold the suture needle 34. The receiving piece is located inside the needle inlet 21. After the suture needle 34 passes through the wall of the puncture hole, it enters the needle inlet 21 and is held by the receiving piece. The suture needle 34 of another suture needle 30 is held synchronously by the receiving piece of the needle receiving member in the same way, thereby realizing the reception of the suture needle. For the specific structure of the needle receiving member and the method of receiving the needle, please refer to the description of the known embodiments disclosed in CN111870321A and CN111870292A, which will not be repeated here.

[0095] When the first operating member 10 is operated in a direction opposite to the first direction, the suture needle 30 is driven to retract. As the suture needle 30 retracts, the suture needle tip 34 disengages from the suture arm 33, causing the suture needle tip 34 to remain within the mandrel assembly 20, while the suture arm 33 retracts through the needle outlet 21 into the mandrel assembly 20. Further, the suture needle tip 34 disengages from the connecting portion, causing the suture needle tip 34 to remain within the mandrel assembly 20, while the connecting portion and the suture arm 33 retract through the needle outlet 21 into the mandrel assembly 20.

[0096] In another embodiment, such as Figures 19a to 19b As shown, the suture needle tip 34 of the suture needle 30 is integrally or fixedly connected to the suture arm 33. The suture assembly also includes a needle sheath 39 and a suture 31. The needle sheath 39 is detachably connected to the suture needle 31. The needle sheath 39 has an axial hole 43 and a radial hole 44 communicating with the axial hole 43. The suture 31 passes through the radial hole 44, and the suture needle 30 extends into the axial hole 43 to hold the suture 31 in place. As can be seen from the above, the drive mechanism 150 is driven by the suture needle 30, and the suture needle 30 is driven by the drive mechanism 150 to move, thereby driving the suture 31 to suture the puncture hole. The suture device 100 also includes a suture release element (not shown in the figure), which is disposed within the mandrel assembly 20. The suture needle 30 drives the needle sheath 39 and the suture 31 to first pass through the abdominal wall tissue, then through the needle inlet 21 and through the suture release element. When the suture needle 30 exits the needle inlet 21, the needle sheath 39 and the suture release element form a limiting stop, causing the needle sheath 39 to disengage from the suture needle 30, while the needle sheath 39 and the suture 31 remain within the mandrel assembly 20. For details regarding the specific structure and installation of the needle sheath 39 and the suture 31, as well as the specific structure of the suture release element and its connection relationship with the mandrel assembly 20, please refer to the description of the known embodiments in application number CN202223427513X, which will not be repeated here.

[0097] According to another aspect of this embodiment, a suture 100 is provided, including a first operating member 10, a flap 40 connected to the first operating member 10, and a suture needle 30; a first movement of the first operating member 10 along a first direction causes the flap 40 to move from a closed position to an open position; a second movement of the first operating member 10 along the first direction causes the suture needle 30 to move; the suture 100 further includes a locking mechanism 130, and the suture 100 has a first state, a second state, and a third state; in the first state, the first operating member 10 engages with the locking mechanism 130 to prevent the first operating member 10 from performing the first movement; in the second state, the first operating member 10... The first operating member 10 separates from the safety mechanism 130; in response to the first movement of the first operating member 10, the wing 40 moves from the closed position to the open position; in the open position, the first operating member 10 engages with the safety mechanism 130 to prevent the first operating member from performing the second movement; in the third state, the first operating member 10 separates from the safety mechanism 130, and in response to the second movement of the first operating member 10, the suture needle 30 performs a needle withdrawal action; in response to the fourth movement of the safety mechanism 130, the suture device 100 switches from the first state to the second state; in response to the third movement of the safety mechanism 130, the suture device 100 switches from the second state to the third state. The suture device of this embodiment, while satisfying the positioning and suturing functions, has a simple overall structure and smooth operation; and through the cooperation of the safety mechanism and the first operating member, it prevents the suture needle from being misoperated after the wing unfolds, meeting the needs of surgery and ensuring safety and reliability.

[0098] In this embodiment, the suture 100 further includes a suture storage device 200 for storing the suture 31; when the flap 40 is in the closed position, the suture storage device 200 is in a connected state connected to the flap 40, and the suture storage device 200 and the body of the suture 100 form a closed suture storage space; in response to the first movement of the first operating member 10, the flap 40 moves from the closed position to the open position; in the open position, the suture storage device 200 is in a separated state separated from the flap 40; in the separated state, in response to the second movement of the first operating member 10, the suture storage device 200 moves distally to expose the suture storage space, thereby exposing the suture 31.

[0099] In this embodiment, when the flap 40 is in the closed position, the suture storage device 200 is connected to the flap 40; when the flap 40 is in the open position, the suture storage device 200 is separated from the flap 40; when the two are separated, the suture storage device 200 moves to the distal end to expose the suture storage space, thereby exposing the suture 31. By utilizing the existing wing 40 of the stitcher 100 to connect the suture storage device 200 to the stitcher 100, compared to the prior art which uses an additional structure within the core rod assembly 20 of the stitcher 100 to connect the suture storage device 200 to the stitcher 100, some parts are reduced, the overall structure is simple, and installation is convenient. At the same time, when the wing 40 is in the closed position, the stitch storage device 200 can be reliably and stably connected to the wing 40. When the wing 40 is driven to the open position, the wing 40 moves relative to the stitch storage device 200, causing it to separate from the stitch storage device 200. At this time, the suture storage device 200 is in a loosely fitted state with the body of the stitcher 100. Only the frictional force between the suture storage device 200 and the body of the stitcher 100 needs to be overcome to achieve the movement of the suture storage device 200 to the distal side. After the two are separated, it is easier and smoother to drive the suture storage device 200 to move towards the distal end; in addition, compared with the above-mentioned connection between the suture 100 and the suture storage device 200 through an additional device, it is easier to balance the stability of the connection and the ease of separation.

[0100] Specifically, such as Figures 20 to 22As shown, the suture storage device 200 includes a storage end 202, which has a rib plate 204, a storage cavity, and an opening communicating with the storage cavity. The rib plate 204 divides the storage cavity into two storage slots 206, and the suture 31 is stored in the two storage slots 206 respectively, with the end of the suture 31 extending out of the storage end 202 from the opening. When the flap 40 is in the closed position, the storage end 202 is connected to the flap 40 through the rib plate 204, and the storage end 202 abuts against the body of the sewing machine 100 (the distal end of the core rod assembly 20) to seal the opening. When the flap 40 is in the open position, the rib plate 204 separates from the flap 40, so that the storage end 202 separates from the flap 40. In the separated state, the storage end 202 moves toward the distal end to expose the storage slots 206, thereby exposing the suture 31. The rib 204 divides the storage cavity into two storage slots 206. The suture 31 is stored in each of the two slots 206, with its end protruding from the opening at the storage end 202. The storage end 202 is connected to the wing 40 via the rib 204 and abuts against the body of the sewing machine 100, sealing the opening and thus compressing the suture 31 within the storage slot 206. When the rib 204 and the wing 40 are separated, the storage end 202 moves distally to expose the storage slot 206, thus allowing the suture 31 to be stored. The suture 31 exists independently without being connected to other components of the suture storage device 200. The entire storage slot 206 is used to store the suture 31, so that the storage end 202 has sufficient storage space, ensuring that the suture storage structure 200 has a strong suture storage capacity. Furthermore, storing the suture 31 separately in two storage slots 206 can avoid the overlapping and tangling caused by the suture 31 being stored too concentratedly, thereby ensuring that the suture 100 can perform suturing operations and ensuring the normal use of the suture 100.

[0101] like Figure 20As shown, the near end of the stiffener 204 has two spaced-apart snap-fit ​​portions 207. The two snap-fit ​​portions 207 are arranged opposite each other and extend in a direction away from the receiving end 202, thereby forming a movement channel between them. The wing 40 has a mounting portion 43 that extends inward from the inner sidewall of the wing body 41. When the wing 40 is in the closed position, the two snap-fit ​​portions 207 engage with the two mounting portions 43 respectively. Specifically, the mounting portion 43 is a protrusion extending inward from the inner sidewall of the wing body 41. The protrusion has a near-end mounting surface. The snap-fit ​​portion 207 includes a latch, and the distal end surface 205 of the latch abuts against the near-end mounting surface 45 of the protrusion to achieve the connection between the stiffener 204 and the wing 40. Because there is a certain space between the two flaps 40, the mounting part can extend inward by a certain length. Simultaneously, the flaps 40 also have a certain width, and the mounting part 43 can also have a certain width. This allows for a more stable and reliable engagement between the locking part 207 of the stiffener 204 when the flaps 40 are in the closed position. At the same time, the drive mechanism 150 drives the flaps 40 outward from the closed position to the open position, separating them from the locking part 207 of the stiffener 204. Separation is relatively easy, thus effectively balancing the stability of the connection and the ease of separation.

[0102] The distal end of the core rod assembly 20 has a second mounting hole 22, and the stiffening plate 204 has a movable limiting groove 208 extending along the moving direction of the storage end. The suture storage device 200 also includes a limiting member 209, which passes through the second mounting hole 22 and is disposed within the movable limiting groove 208. When the proximal end of the movable limiting groove 208 moves towards the distal end with the stiffening plate 204 and abuts against the limiting member 209, the limiting member 209 stops and limits the stiffening plate 204. In this embodiment, the limiting member 209 is a limiting pin, and there are two second mounting holes 22. The limiting pin passes through the first second mounting hole 22, the movable limiting groove 208, and the second first mounting hole 22 in sequence. When the flap 40 is in the closed position, the limiting between the stiffening plate 204 and the flap 40 is achieved by the cooperation of the snap-fit ​​part 207 and the mounting part 43, and the limiting pin does not need to play a limiting role. When the storage end 202 is driven to move to the distal end, the limiting pin can abut against the proximal end of the movable limiting groove 208, thereby stopping and limiting the rib plate 204. This does not affect the position switching of the storage end 202, and also prevents the storage end 202 from disengaging from the core rod assembly 20, ensuring the normal use of the suture storage structure 200.

[0103] Preferably, such as Figures 21a to 22As shown, to better accommodate and install the suture 31, the receiving end 202 has two first notches 210. These two first notches 210 are located at the opening of the receiving end 202 and on opposite sides of the receiving end 202. The two first notches 210 connect the two receiving slots 206 to the outer surface of the receiving end 202. The ends of the suture 31 pass through the two first notches 210 respectively. Specifically, the height of the first notch 210 along the moving direction of the receiving end 202 is greater than or equal to the diameter of the suture 31, thereby allowing the suture 31 to be accommodated within the first notch 210. When the distal end of the core rod assembly 20 abuts against the receiving end 202, it will not compress the suture 31, thus avoiding damage to the suture 31. Of course, the height of the first notch 210 can also be slightly smaller than the diameter of the suture 31, so that the suture 31 is slightly exposed in the first notch 210. This way, when the distal end of the core rod assembly 20 abuts against the receiving end 202, the suture 31 can be pressed tightly against the first notch 210, allowing the suture 31 to be stably stored in the receiving groove 206. The receiving end 202 also has a second notch 211, which is formed at the opening of the rib 204. The second notch 211 connects the two receiving grooves 206, and at least a portion of the suture 31 is accommodated within the second notch 211. Specifically, the suture 31 is divided into two parts, each stored in one of the two receiving grooves 206, with the midline between the two parts accommodated within the second notch 211, allowing the suture 31 to pass through the rib 204. Correspondingly, the relationship between the height of the second notch 211 and the diameter of the suture 31 is similar to that of the first notch 210, and will not be repeated here. The stiffening plate 204 includes a first segment 212 and a second segment 214 connected in sequence. The first segment 212 is located inside the receiving cavity, thereby dividing the receiving cavity of the receiving end 202 into two receiving slots 206. The second segment 214 extends out of the receiving end 202 and is detachably connected to the wing 40. The second segment 214 has the aforementioned movable limiting groove. In this embodiment, the width of the second segment 214 is smaller than the width of the first segment 212, thereby forming a step at the connection between the first segment 212 and the second segment 214. The second notch 211 is located at the step formed by the first segment 212 and the second segment 214. Of course, it can be understood that it is also possible to... Figure 20 The first notch 210 and the second notch 211 are not provided. The suture 31 is led out from the storage grooves 206 on both sides of the rib plate 204 and directly connected to the suture needle 40.

[0104] The receiving end 202 includes a distal end, a proximal end, and a peripheral sidewall extending from the proximal end to the distal end. The distal end is a closed structure, while the proximal end has an opening. A receiving cavity is formed by extending from the opening towards the distal end of the receiving end 202. The peripheral sidewall surrounds the receiving cavity, and a first notch 210 is formed on the peripheral sidewall at the proximal end. When the wing 40 is in the closed position, the proximal end of the receiving end 202 abuts against the distal end of the core rod assembly 20. In terms of overall appearance, the cross-section of the proximal end of the receiving end 202 can be circular, such as... Figure 20 As shown. To facilitate assembly personnel in pinching the storage end 202 during assembly, as... Figure 21a and Figure 21b As shown, the proximal end of the receiving end 202 is equivalent to an elliptical cylinder with a portion cut off from each of its four sides. The exposed portions after cutting form a pinching surface for tightening. Of course, the cross-section of the proximal end can also be other shapes, such as ellipse, which can be selected according to actual needs.

[0105] In an optional embodiment, the suture 31 is stored differently from the above-described method of being separately housed in two storage slots 206 and then extending out to the storage end 202. In this embodiment, the suture storage device 200 also includes a storage end 202, which has a rib plate 204, a storage cavity, and an opening communicating with the storage cavity. However, the middle part of the suture 31 is wound around the rib plate 204, and the end of the suture 31 extends out of the storage end 202 from the opening. In the closed position, the storage end 202 is connected to the wing 40 through the rib plate 204, and the storage end 202 abuts against the body of the stitcher 100 (the distal end of the core rod assembly 20) to seal the opening. In the open position, the rib plate 204 separates from the wing 40, so that the storage end 202 separates from the wing 40. In the separated state, the storage end 202 moves toward the distal end to expose the storage slot 206, thereby exposing the suture 31.

[0106] In another alternative embodiment, the outer surface of the receiving end 202 is provided with a cutting edge for forming a puncture hole. That is, the suture device 100 in this embodiment has a puncture function.

[0107] Combination Figures 23 to 26 This describes the state changes of the suture storage device in the initial state and after being driven, including the wing 40 and the suture needle 30. Figure 23As shown, the wing 40 is in the closed position, the snap-fit ​​portion 207 of the stiffener 204 snaps into the mounting portion 43 of the wing 40, and the suture storage device 200 and the core rod assembly 20 form a closed suture storage space; the stiffener 204 also has a driving surface 216 located between the two snap-fit ​​portions 207; the distal end of the driving mechanism 150 is axially spaced from the driving surface 216 of the stiffener 204 by a first distance. In this embodiment, specifically, the distal end of the driving mechanism 150 is the distal end of the second driving portion, and the driving mechanism 150 cannot drive the suture storage device 200 to move. The driving mechanism 150 drives the wing 40 to move from the closed position to the open position, and the driving mechanism 150 gradually approaches the driving surface 216 of the stiffener 204; in the open position, as Figure 24 As shown, the snap-fit ​​portion 207 separates from the mounting portion 43 of the wing 40. At this time, the suture storage device 200 still forms a closed suture storage space with the core rod assembly 20. The distal end of the drive mechanism 150 and the drive surface 216 of the stiffener 204 are axially spaced by a second distance, wherein the second distance is less than the first distance. Figure 25 As shown, the drive mechanism 150 drives the suture needle 30 to perform a needle extension movement. During this process, the drive mechanism 150 contacts the drive surface 216 of the rib plate 204 to drive the suture storage device 200 to move distally, thereby exposing a portion of the suture storage space and revealing the suture 31. Figure 26 As shown, the suture needle 30 completes its needle withdrawal movement, and the suture storage device 200 moves to its furthest position, completely exposing a portion of the suture storage space, thus revealing the suture 31.

[0108] According to another aspect of this embodiment, a suture assembly 1000 is provided, such as... Figure 27 As shown, the suture assembly 1000 includes a cannula assembly 300 and the aforementioned suture 100, the suture 100 being removably fitted onto the cannula assembly 300.

[0109] Combination Figures 28 to 32 This is the second embodiment of the present invention. Similar to the first embodiment, this embodiment relates to a suture device.

[0110] This embodiment differs from the first embodiment in that the structures of the first component 110 and the second component 140 are different. Specifically, in this embodiment, as shown... Figures 28 to 32 As shown, the first component 110 includes a first limiting surface 141 and a second limiting surface 142, and the second component 140 includes a first mating surface 111. In the initial state, the first mating surface 111 engages with the first limiting surface 141 to prevent the first operating member 10 from performing a first movement, as shown. Figure 28 As shown; in response to the fourth movement of the second operating member 131, the first mating surface 111 and the first limiting surface 141 switch from the first engaged state to the first disengaged state, as... Figure 29As shown; in the first separated state, the first operating member 10 is operated to perform a first movement to move the wing 40; when the wing 40 is in the open position, the first mating surface 111 engages with the second limiting surface 142 to prevent the second movement of the first operating member 10, and the suture needle 30 cannot perform the needle withdrawal movement, as shown. Figure 30 As shown; in response to the third movement of the second operating member 131, the first mating surface 111 and the second limiting surface 142 switch from the second engaged state to the second disengaged state, as... Figure 31 As shown; in the second separation state, as Figure 32 As shown, the first operating member 10 is operated to perform a second movement, thereby driving the suture needle 30 to perform a needle-out movement. On the one hand, while satisfying the positioning and suturing functions of the suture device 100, the overall structure of the suture device 100 is simple and the operation is smooth; on the other hand, the cooperation between the safety mechanism 130 and the first operating member 10 prevents the wing plate 40 and the suture needle 30 from being misoperated, further meeting the needs of the surgery and making it safer and more reliable.

[0111] More specifically, the first component 110 is a stepped first protrusion extending downward along the axial direction, with the distal lower surface of the first protrusion serving as a first limiting surface 141 and the proximal lower surface serving as a second limiting surface 142; the second component 140 is a second protrusion extending upward along the axial direction, with the upper surface of the second protrusion serving as a first mating surface 111. To make the engagement between the first operating member 10 and the safety mechanism 130 more stable, the first operating member 10 includes two first protrusions symmetrically arranged on the body of the first operating member 10, and correspondingly, the safety mechanism 130 also includes two second protrusions symmetrically arranged on the body of the safety mechanism 130.

[0112] Combination Figures 33 to 36 This is the third embodiment of the present invention. Similar to the first embodiment, this embodiment relates to a suture device.

[0113] The difference between this embodiment and the first embodiment lies in the structure of the second component 140. The safety mechanism has only two positions: an initial position and a final position. In this embodiment, the movement of the winglet 40 is not restricted. Figure 33 As shown, in the initial state, the first component 110 and the second component 140 are spaced apart. The first component 110 includes a first mating surface 111, and the second component 140 includes a first limiting surface 141. In the initial state, the second operating member 131 is in the initial position, the first mating surface 111 and the first limiting surface 141 are separated, and the first operating member 10 can be operated to perform a first movement. Figure 34As shown, in response to the first operating member 10 performing a first movement, the wing 40 moves from a closed position to an open position; the first component 110 moves from a position separated from the second component 140 to a position engaged with the second component 140. At this time, the first mating surface 111 engages with the first limiting surface 141 to prevent the second movement of the first operating member 10, and the suture needle 30 cannot perform the needle withdrawal movement. Figure 35 As shown, in response to a third movement of the second operating member 131 along the second direction, the second operating member 131 moves from an initial position to a termination position to separate the second component 140 from the first component 110, at which point the first mating surface 111 separates from the first limiting surface 141 again. Figure 36 As shown, when the second component 140 is separated from the first component 110, the first operating member 10 is operated to perform a second movement so that the suture needle 30 performs a needle withdrawal action.

[0114] Specifically, the first component 110 is a first protrusion extending downward along the axial direction, and the second component 140 is a second protrusion extending upward along the axial direction; the lower surface of the first protrusion is the first mating surface 111, and the upper surface of the second protrusion is the first limiting surface 141.

[0115] According to another aspect of this embodiment, a suture 100 is provided, including a first operating member 10, a flap 40 connected to the first operating member 10, and a suture needle 30; a first movement of the first operating member 10 in a first direction causes the flap 40 to move from a closed position to an open position; a second movement of the first operating member 10 in the first direction causes the suture needle 30 to move; the suture 100 also includes a safety mechanism 130, and the suture 100 has a first state and a second state; in the first state, the first operating member 10 is separated from the safety mechanism 130, and in response to the first movement of the first operating member 10, the flap 40 moves from a closed position to an open position; in the open position, the first operating member 10 is engaged with the safety mechanism 130 to prevent the first operating member 10 from performing the second movement; in the second state, the first operating member 10 is separated from the safety mechanism 130, and in response to the second movement of the first operating member 10 in a second direction, the suture needle 30 performs a needle extension action; in response to a third movement of the safety mechanism 130, the suture 100 switches from the first state to the second state. The suture device 100 of this embodiment has a simple overall structure and smooth operation while satisfying the positioning and suturing functions of the suture device 100. Furthermore, the cooperation between the safety mechanism 130 and the first operating component 10 prevents the suture needle 30 from being misoperated after the wing 40 is deployed, thus meeting the needs of the operation and ensuring safety and reliability.

[0116] Combination Figures 37 to 47 This is the fourth embodiment of the present invention, which relates to a suture assembly.

[0117] This embodiment provides a suture assembly 1000, which includes the suture 100 and cannula assembly 300 described in the first and second embodiments. In this embodiment, the suture 100 further includes a snap-fit ​​mechanism 400, through which the suture 100 is detachably connected to the cannula assembly 300. Specifically, the snap-fit ​​mechanism 400 includes a third operating member 401 and a snap-fit ​​member 402 connected to the third operating member 401, and the suture 100 is detachably connected to the cannula assembly 300 through the snap-fit ​​member 402. A first operating member 10 is connected to an actuator to drive the actuator to move, wherein the actuator is the aforementioned flap 40 and suture needle 30. The suture assembly 1000 has an unlocked state and a locked state. In the unlocked state, the locking mechanism 130 and the third operating member 401... 01 Separation: In response to the operation of the third operating member 401, the latching member 402 moves from the connection position with the cannula assembly 300 to the separation position with the cannula assembly 300 to separate the suture 100 from the cannula assembly 300; the locking mechanism 130 engages with the first operating member 10 to lock the first operating member 10; in the locked state, the locking mechanism 130 engages with the third operating member 401 to lock the latching mechanism 400 so that the latching member 402 remains connected to the cannula assembly 300; the locking mechanism 130 separates from the first operating member 10 to unlock the first operating member 10, and in response to the operation of the first operating member 10, the actuator performs a corresponding movement.

[0118] Because of the safety mechanism 130, when the suture 100 and the cannula assembly 300 are separable, the movement of the first operating member 10 is restricted, preventing it from driving the actuator. Only when the safety mechanism 130 cooperates with the third operating member 401 to lock the latching mechanism 400, keeping the latching member 402 connected to the cannula assembly 300, can the first operating member 10 be operated to drive the actuator. This design ensures that the latching mechanism 400 is not accidentally operated when driving the actuator, thus preventing the suture 100 from separating from the cannula assembly 300, effectively ensuring the normal progress of the surgery. Simultaneously, the safety mechanism 130 serves to lock and unlock both the first operating member 10 and the latching mechanism 400, making the entire suture assembly 1000 simple in structure and safe and reliable. In this embodiment, the actuators are the wing 40 and the suture needle 30. This ensures that the locking mechanism 400 is locked by the safety mechanism 130 throughout the entire movement of the suture 100. This prevents the wing 40 from being accidentally operated when it opens and pulls the positioning tissue proximally, causing the suture 100 to be pulled proximally away from the cannula assembly 300. The user would then need to push the suture 100 distally to reconnect it to the cannula assembly 300, increasing user inconvenience. It also prevents the suture needle 30 from being accidentally operated during its movement, causing the suture 100 to be pulled proximally away from the cannula assembly 300, blocking the needle outlet and affecting needle exit, blocking the needle retention port 21 and affecting suture 31 unraveling, or getting the suture 31 stuck between the suture 100 and the cannula assembly 300, thus affecting the normal progress of the surgery.

[0119] In this example, the third operating element 401 of the snap-fit ​​mechanism 400 is specifically a button. Pressing the button causes the snap-fit ​​element 402 to switch from a connected position with the cannula assembly 300 to a disconnected position with the cannula assembly 300, thereby separating the suture 100 from the cannula assembly 300. The snap-fit ​​mechanism 400 also includes a reset element 403, which is connected to the third operating element 401. When the third operating element 401 is operated, the reset element 403 is compressed and stores energy. Releasing the third operating element 401 causes it to return to its original position under the action of the reset element 403. More specifically, the reset element 403 is a spring, one end of which is connected to the third operating element 401, and the other end abuts against the seat 170 of the suture 100. The snap-fit ​​element 402 includes a hook 404, and the cannula assembly 300 includes a slot 303. The hook 404 and the slot 303 cooperate to connect the suture 100 to the cannula assembly 300. Figures 37 to 41The cannula assembly 300 includes an upper cover 301 and a cannula body 302. The upper cover 301 is connected to the cannula body 302. The upper cover 301 has a through hole 304 at its center for the suturer 100 to pass through, and slots 303 on both sides that engage with hooks 404. The third operating member 401 of the latching mechanism 400 is movably connected to the seat 170 of the suturer 100. Specifically, two first protrusions 405 are symmetrically arranged on the inner wall of the third operating member 401. There are two third operating members 401. Correspondingly, two grooves that engage with the two third operating members 401 are symmetrically arranged on both sides of the seat 170. Each groove includes a bottom wall 171 and two side walls 172 that are connected to the bottom wall 171 and extend upward. When the third operating member 401 is pressed, its two first protrusions 405 adhere to the two side walls 172 and move inward along the side walls 172, making the entire movement more stable. The base 170 also includes a first arm 173, which extends upward along the bottom of the base 170. One end of the reset member 403 is connected to the inner wall of the third operating member 401, and the other end is connected to the first arm 173. The snap-fit ​​member 402 of the snap-fit ​​mechanism 400 is connected to the third operating member 401 and extends downward from the third operating member 401. The base 71 is provided with an opening 174. The snap-fit ​​member 402 extends through the opening 174 to the bottom of the base 71 and then connects with the slot 303 of the upper cover 301 of the sleeve assembly 300. Figure 40 As shown, in the initial state, the suture 100 is connected to the cannula assembly 300 via the hook 404 of the snap fastener 402, with the snap fastener 402 in the connected position with the cannula assembly 300. Pressing the third operating member 401 inward causes the hook 404 of the snap fastener 402 to disengage from the slot 303 of the cannula assembly 300. While the third operating member 401 is pressed, pulling the suture 100 upward completely disengages it from the cannula assembly 300, and the snap fastener 402 is in the separated position from the cannula assembly 300. Figure 41 As shown.

[0120] In this embodiment, the safety mechanism 130 has a first position, a second position, and a third position; wherein the first position corresponds to the initial position in the first and second embodiments, the second position corresponds to the intermediate position in the first and second embodiments, and the third position corresponds to the termination position in the first and second embodiments. In response to the safety mechanism 130 moving from the first position to the second and third positions, the suture assembly 1000 switches from an unlocked state to a locked state; in the first position, the safety mechanism 130 separates from the third operating member 401 to unlock the latching mechanism 400, allowing the latching member 402 to move from the connection position with the cannula assembly 300 to the separation position with the cannula assembly 300 in response to the operation of the third operating member 401, thus separating the suture 100 from the cannula assembly 300, and engaging with the first operating member 10 to place the first operating member 10 in a first engaged state, preventing the first operating member 10 from being driven, thereby preventing the flap 40 and the suture needle 3 from being driven to perform corresponding movements; in the second position, the safety mechanism 130 engages with the third operating member 401 to lock. The locking mechanism 400 is inoperable at this time, and the suture 100 remains connected to the cannula assembly 300. The first operating member 10 is in a first disengaged state, separated from the safety mechanism 130. In response to the first operating member 100 performing a first movement, the flap 40 moves from the closed position to the open position. When the flap 40 is in the open position, the first operating member 10 is in a second engaged state, engaged with the safety mechanism 130, so that the first operating member 10 cannot be driven, thereby preventing the suture needle 30 from being driven. In the third position, the third operating member 401 is engaged with the safety mechanism 130, and the first operating member 10 is in a second disengaged state, separated from the safety mechanism 130. In response to the first operating member 10 performing a second movement, the suture needle 30 performs a needle extension movement. In this way, it is ensured that the actuator will not misoperate and jam the mechanism 400 when it is driven to move, and the suture 100 will not be separated from the cannula assembly 300, thus effectively ensuring the normal progress of the operation; at the same time, it ensures the action logic of the wing 40 and the suture needle 30, and prevents the wing 40 and the suture needle 30 from misoperating.

[0121] Specifically, as can be seen from the first and second embodiments described above, the suture device 100 includes a first component 110, which is connected to the first operating member 10; the safety mechanism 130 includes a second component 140; one of the first component 110 and the second component 140 includes a first mating surface 111, and the other includes a first limiting surface 141 and a second limiting surface 142. In this embodiment, the suture 100 further includes a third component 143. When the safety mechanism 130 is in the first position, the third component 143 separates from the third operating member 401 to unlock the latching mechanism 400, allowing the latching member 402 to move from the connection position with the cannula assembly 300 to the separation position in response to the operation of the third operating member 401, thereby separating the suture 100 from the cannula assembly 300. The first mating surface 111 engages with the first limiting surface 141, placing the first operating member 10 in a first engaged state, preventing the flap 40 and the suture needle 3 from being driven to perform corresponding movements. When the safety mechanism 130 is in the second position, the third component 143 engages with the third operating member 401. The locking mechanism 400 is engaged to keep the locking member 402 connected to the sleeve assembly 300, and the first mating surface 111 separates from the first limiting surface 141, so that the first operating member 10 is in a first disengaged state. In response to the first operating member 100 performing a first movement, the wing 40 moves from the closed position to the open position. When the wing 40 is in the open position, the first mating surface 111 engages with the second limiting surface 142, so that the first operating member 10 is in a second engaged state to prevent the suture needle 30 from moving. In the third position, the third component 143 engages with the locking mechanism 130 to lock the locking mechanism 400, and the first mating surface 111 separates from the second limiting surface 142, so that the first operating member 10 is in a second disengaged state.

[0122] More specifically, in one embodiment, such as Figures 3 to 7 , Figures 42 to 47 As shown, the first component 110 is a first protrusion extending downward along the axial direction, and the lower surface of the first protrusion is a first mating surface 111. The second component 140 is a second protrusion extending upward along the axial direction in a stepped shape, and the upper surface of the second protrusion on the proximal side is a first limiting surface 141, and the upper surface on the distal side is a second limiting surface 142. There are two third components 143, which are spaced apart along the periphery of the safety mechanism 130. Specifically, the third component 143 is a third protrusion disposed on the periphery of the body of the safety mechanism 130. The locking mechanism 400 also includes a second protrusion 406, which is disposed between the two first protrusions 405. Figure 42 and Figure 43As shown, the safety mechanism 130 includes a second operating member 131. In the initial state, the safety mechanism 130 is in the first position, and the two third components 143 are separated from the locking mechanism 400. At this time, the locking mechanism 400 can be operated to separate the suture 100 from the cannula assembly 300. As can be seen from the above, the movement of the first operating member 10 is restricted, and it cannot drive the movement of the flap 40 and the suture needle 30. Operating the second operating member 131 in the second direction moves it from the first position to the second position. In the second position, as can be seen from the above, the first operating member 10 is unlocked, and it can drive the flap 40 from the closed position to the open position. When it moves to the open position, the first operating member 10 is locked again, and it cannot drive the movement of the suture needle 30. Figure 44 and Figure 45 As shown, one of the third components 143 (relatively away from the second operating member 131 along the second direction) engages with the second protrusion 406 of the locking mechanism 400 to prevent the movement of the locking mechanism 400. At this time, the locking mechanism 400 cannot be operated, and the suture 100 maintains the connection of the cannula assembly 300. Continuing to operate the second operating member 131 along the second direction, it moves from the second position to the third position. In the third position, as can be seen from the above, the first operating member 10 is unlocked again, enabling the suture needle 30 to move, and as... Figure 46 and Figure 47 As shown, another third component 143 (relatively close to the second operating member 131 along the second direction) engages with the first protrusion 405 of the locking mechanism 400 to prevent the movement of the locking mechanism 400. At this time, the locking mechanism 400 cannot be operated, and the suture 100 still maintains the connection of the cannula assembly 300. Of course, it is understood that the two third components 143 can also be made as a single unit, and the third component 143 can also interact with other parts of the third operating member 401, as long as it can satisfy the requirement that the locking mechanism 130 is separated from the locking mechanism 400 in the first position and engaged with the locking mechanism 400 in the second and third positions. No restrictions are imposed here.

[0123] In another embodiment, the first component 110 is a stepped first protrusion extending downward along the axial direction, with its distal lower surface serving as a first limiting surface 141 and its proximal lower surface serving as a second limiting surface 142; the second component 140 is a second protrusion extending upward along the axial direction, with its upper surface serving as a first mating surface 111; and the third component 143 is a third protrusion disposed on the periphery of the body of the safety mechanism 130. In this embodiment, the safety mechanism 130 cooperates with the locking mechanism 400 through the third protrusion 143. The specific cooperation relationship with the locking mechanism 400 is the same as in the above embodiment and will not be repeated here.

[0124] According to another aspect of this embodiment, a suture assembly 1000 is provided, which includes a suture 100 and a cannula assembly 300. In this embodiment, the suture 100 further includes a snap-fit ​​mechanism 400, through which the suture 100 is detachably connected to the cannula assembly 300. Specifically, the snap-fit ​​mechanism 400 includes a third operating member 401 and a snap-fit ​​member 402 connected to the third operating member 401, and the suture 100 is detachably connected to the cannula assembly 300 through the snap-fit ​​member 402. A first operating member 10 is connected to an actuator to drive the actuator to move. The suture assembly 1000 has a locking state. The device has two states: an unlocked state and an unlocked state. In the unlocked state, the locking mechanism 130 disengages from the third operating member 401, allowing the latching member 402 to switch from a connected position to a disengaged position in response to the third operating member 401 being operated. In the locked state, the locking mechanism 130 cooperates with the third operating member 401 to lock the latching mechanism 400, keeping the latching member 402 connected to the sleeve assembly 300. The locking mechanism 130 also cooperates with the first operating member 10, allowing the first operating member 10 to be operated only in the locked state to drive the actuators, wherein the actuators are the aforementioned suture needle 30 and flap 40.

[0125] Because of the safety mechanism 130, when the suture 100 and the cannula assembly 300 are separable, the movement of the first operating member 10 is restricted, preventing it from driving the actuator. Only when the safety mechanism 130 cooperates with the third operating member 401 to lock the latching mechanism 400, keeping the latching member 402 connected to the cannula assembly 300, can the first operating member 10 be operated to drive the actuator. In other words, the safety mechanism 130, in cooperation with the first operating member 10, ensures that the first operating member 10 is only operated to drive the actuator when locked. This design ensures that the latching mechanism 400 is not accidentally operated when the actuator is being driven, thus preventing the suture 100 from separating from the cannula assembly 300, effectively guaranteeing the normal progress of the surgery. Simultaneously, the safety mechanism 130 serves both to lock and unlock the first operating member 10 and the latching mechanism 400, making the entire suture assembly 1000 structurally simple, safe, and reliable.

[0126] Combination Figures 48 to 53 This is the fifth embodiment of the present invention. Similar to the fourth embodiment, this embodiment relates to a suture assembly.

[0127] This embodiment provides a suture assembly 1000, which includes the suture 100 and cannula assembly 300 described in the first and second embodiments. The suture 100 further includes a snap-fit ​​mechanism 400, through which the suture 100 is detachably connected to the cannula assembly 300. Specifically, the snap-fit ​​mechanism 400 includes a third operating member 401 and a snap-fit ​​member 402 connected to the third operating member 401, and the suture 100 is detachably connected to the cannula assembly 300 through the snap-fit ​​member 402. A first operating member 10 drives the suture needle 30 to move. A safety mechanism 130 includes a first position and a second position. In the first position, the safety mechanism 130 engages with the first operating member 10 to lock the first operating member 10, thereby preventing the first operating member 10 from driving the suture needle 30 to move. The safety mechanism 130 separates from the third operating member 401 to unlock the latching mechanism 400. In response to the operation of the third operating member 401, the latching member 402 moves from the position connected to the cannula assembly 300 to the position separated from the cannula assembly 300, thereby separating the suture 100 from the cannula assembly 300. In the second position, the safety mechanism 130 engages with the third operating member 401 to lock the latching mechanism 400, keeping the latching member 402 connected to the cannula assembly 300. The safety mechanism 130 separates from the first operating member 10 to unlock the first operating member 10. In response to the movement of the first operating member 10, the suture needle 30 performs a needle withdrawal movement. In this embodiment, the specific structure of the latching mechanism 400, its installation with the safety mechanism 130, and its installation with the cannula assembly 300 are the same as in the fourth embodiment, and will not be described again here.

[0128] Because of the safety mechanism 130, when the suture device 100 and the cannula assembly 300 are separable, the movement of the first operating member 10 is restricted, preventing it from driving the suture needle 30. Only when the safety mechanism 130 cooperates with the third operating member 401 to lock the latching mechanism 400, keeping the latching member 402 connected to the cannula assembly 300, can the first operating member 10 be operated to drive the suture needle 30. This design ensures that the latching mechanism 400 is not accidentally operated when driving the suture needle 30, thus preventing the suture device 100 from separating from the cannula assembly 300 and effectively ensuring the normal progress of the surgery. At the same time, the safety mechanism 130 can both lock and unlock the first operating member 10 and the latching mechanism 400, making the entire suture device assembly 1000 simple in structure and safe and reliable. In this embodiment, it is possible to prevent the locking mechanism 400 from being misoperated when the suture needle 30 is moving, so that the suture 100 is pulled proximally away from the cannula assembly 300, causing the needle outlet to be blocked by the cannula assembly 300 and affecting needle exit, the needle retention port 21 to be blocked by the cannula assembly 300 and affecting suture 31 to fall off, or the suture 31 to be stuck between the suture 100 and the cannula assembly 300, thereby affecting the normal progress of the operation.

[0129] In this embodiment, the stitcher 100 includes a wing 40, and the safety mechanism 130 also has an initial position, wherein the initial position corresponds to the initial position in the first and second embodiments, the first position corresponds to the intermediate position in the first and second embodiments, and the second position corresponds to the termination position in the first and second embodiments. In the initial position, the first operating member 10 engages with the safety mechanism 130, and the safety mechanism 130 disengages from the third operating member 401 to unlock the latching mechanism 400; in response to the safety mechanism 130 moving from the initial position to the first position, the first operating member 10 switches from a first engaged state engaged with the safety mechanism 130 to a first disengaged state disengaged from the safety mechanism 130; in the first disengaged state, in response to the movement of the first operating member 10, the flap 40 moves from a closed position to an open position; when the flap 40 is in the open position, the first operating member 10 is in a second engaged state engaged with the safety mechanism 130 to be locked by the safety mechanism 130, thereby preventing the first operating member 10 from driving the suture needle 30 to move; in the first position, the safety mechanism 130 disengages from the third operating member 401 to unlock the latching mechanism 400, and in response to the third operating member 401 being operated, the latching member 402 moves from a position connected to the cannula assembly 300 to a position disengaged from the cannula assembly 300 to separate the suture 100 from the cannula assembly 300. In response to the safety mechanism 130 moving from the first position to the second position, the first operating member 10 switches from a second engaged state (engaged with the safety mechanism 130) to a second disengaged state (disengaged from the safety mechanism 130). In the second disengaged state, in response to the movement of the first operating member 10, the suture needle 30 performs a needle extension movement. In the second position, the safety mechanism 130 engages with the third operating member 401 to lock the locking mechanism 400, keeping the locking member 402 connected to the cannula assembly 300. This ensures that the locking mechanism 400 is not misoperated when the suture needle 30 is moved, thus preventing the suturer 100 from separating from the cannula assembly 300, effectively guaranteeing the normal progress of the surgery. It also ensures the operational logic of the flap 40 and the suture needle 30, preventing misoperation of the flap 40 and the suture needle 30.

[0130] Specifically, as can be seen from the first and second embodiments described above, the suture device 100 includes a first component 110, which is connected to the first operating member 10; the safety mechanism 130 includes a second component 140; one of the first component 110 and the second component 140 includes a first mating surface 111, and the other includes a first limiting surface 141 and a second limiting surface 142. In this embodiment, the suture 100 further includes a third component 143. When the safety mechanism 130 is in the initial position, the third component 143 separates from the third operating member 401 to unlock the latching mechanism 400, allowing the latching member 402 to move from the connection position with the cannula assembly 300 to the separation position in response to the operation of the third operating member 401, thereby separating the suture 100 from the cannula assembly 300. The first mating surface 111 engages with the first limiting surface 141, placing the first operating member 10 in a first engaged state, preventing the flap 40 and the suture needle 30 from being driven to perform corresponding movements. When the safety mechanism 130 is in the first position, the third component 143... The first operating member 10 is separated from the third operating member 401 to unlock the latching mechanism 400, and the first mating surface 111 is separated from the first limiting surface 141, so that the first operating member 10 is in a first separated state. In response to the first operating member 100 performing a first movement, the wing 40 moves from the closed position to the open position. When the wing 40 is in the open position, the first mating surface 111 is engaged with the second limiting surface 142, so that the first operating member 10 is in a second engaged state to prevent the suture needle 30 from moving. In the second position, the third component 143 is engaged with the latching mechanism 130 to lock the latching mechanism 400, and the first mating surface 111 is separated from the second limiting surface 142, so that the first operating member 10 is in the second separated state.

[0131] More specifically, in one embodiment, such as Figures 3 to 7 , Figures 48 to 53 As shown, the first component 110 is a first protrusion extending downward along the axial direction, and the lower surface of the first protrusion is a first mating surface 111. The second component 140 is a second protrusion extending upward along the axial direction in a stepped shape, and the upper surface of the second protrusion on the proximal side is a first limiting surface 141, and the upper surface on the distal side is a second limiting surface 142. A third component 143 is provided along the periphery of the locking mechanism 130; specifically, the third component 143 is a third protrusion provided on the periphery of the locking mechanism 130 body. The locking mechanism 400 also includes a second protrusion 406, which is disposed between the two first protrusions 405. Figure 48 and Figure 49As shown, the safety mechanism 130 includes a second operating member 131. In the initial state, the safety mechanism 130 is in the initial position, and the third component 143 is separated from the locking mechanism 400. At this time, the locking mechanism 400 can be operated to separate the suture 100 from the cannula assembly 300, and the movement of the first operating member 10 is restricted, preventing the movement of the flap 40 and the suture needle 30. Figure 3 and Figure 3a As shown. The second operating member 131 is operated along the second direction, causing it to move from the initial position to the first position. In the first position, as... Figure 4 As shown, when the first operating member 10 is unlocked, it can drive the flap 40 from the closed position to the open position; when it moves to the open position, the first operating member 10 is locked again, preventing the suture needle 30 from moving, as... Figure 5 As shown, and as Figure 50 and Figure 51 As shown, the third component 143 is still separated from the locking mechanism 400. The second operating member 131 continues to operate in the second direction, moving it from the first position to the second position, as shown. Figure 6 and Figure 7 As shown, in the second position, the first operating member 10 is unlocked again, enabling the suture needle 30 to move, and as... Figure 52 and Figure 53 As shown, the third component 143 engages with the first protrusion 405 of the locking mechanism 400 to prevent the movement of the locking mechanism 400. At this time, the locking mechanism 400 cannot be operated, and the suture 100 maintains the connection of the cannula assembly 300. Of course, it is understood that the third component 143 can also act with other parts of the third operating member 401, such as with the second protrusion 406, as long as it can satisfy the requirement that the locking mechanism 130 is separated from the locking mechanism 400 in the initial position and the first position, and engaged with the locking mechanism 400 in the second position. No limitation is made here.

[0132] In another embodiment, the first component 110 is a stepped first protrusion extending downward along the axial direction, with its distal lower surface serving as a first limiting surface 141 and its proximal lower surface serving as a second limiting surface 142; the second component 140 is a second protrusion extending upward along the axial direction, with its upper surface serving as a first mating surface 111; and the third component 143 is a third protrusion disposed on the periphery of the body of the safety mechanism 130. In this embodiment, the safety mechanism 130 cooperates with the locking mechanism 400 through the third protrusion 143. The specific cooperation relationship with the locking mechanism 400 is the same as in the above embodiment and will not be repeated here.

[0133] Combination Figures 54 to 57 This is the sixth embodiment of the present invention. Similar to the fourth embodiment, this embodiment relates to a suture assembly.

[0134] This embodiment provides a suture assembly 1000, which includes the suture 100 and cannula assembly 300 described in the third embodiment. The suture 100 further includes a snap-fit ​​mechanism 400, through which the suture 100 is detachably connected to the cannula assembly 300; specifically, the snap-fit ​​mechanism 400 includes a third operating member 401 and a snap-fit ​​member 402 connected to the third operating member 401, and the suture 100 is detachably connected to the cannula assembly 300 through the snap-fit ​​member 402; a first operating member 10 drives the suture needle 30 to move; a safety mechanism 130 includes a first position and a second position; wherein the first position corresponds to the initial position in the third embodiment, and the second position corresponds to the termination position in the third embodiment. In the first position, in response to the movement of the first operating member 10, the flap 40 moves from the closed position to the open position; when the flap 40 is in the open position, the first operating member 10 engages with the locking mechanism 130 to be locked by the locking mechanism 130, thereby preventing the first operating member 10 from driving the suture needle 30 to move; and the locking mechanism 130 disengages from the third operating member 401 to unlock the latching mechanism 400. In response to the operation of the third operating member 401, the latching member 402 moves from the position connected to the cannula assembly 300 to the position separated from the cannula assembly 300 to separate the suture 100 from the cannula assembly 300; in the second position, the locking mechanism 130 engages with the third operating member 401 to lock the latching mechanism 400 so that the latching member 402 remains connected to the cannula assembly 300; and the locking mechanism 130 disengages from the first operating member 10 to unlock the first operating member 10. In response to the movement of the first operating member 10, the suture needle 30 performs a needle withdrawal movement. In this embodiment, the specific structure of the snap-fit ​​mechanism 400, its installation with the safety mechanism 130, and its installation with the sleeve assembly 300 are the same as in the fourth embodiment, and will not be described again here.

[0135] Because of the safety mechanism 130, when the suture device 100 and the cannula assembly 300 are separable, the movement of the first operating member 10 is restricted, preventing it from driving the suture needle 30. Only when the safety mechanism 130 cooperates with the third operating member 401 to lock the latching mechanism 400, keeping the latching member 402 connected to the cannula assembly 300, can the first operating member 10 be operated to drive the suture needle 30. This design ensures that the latching mechanism 400 is not accidentally operated when driving the suture needle 30, thus preventing the suture device 100 from separating from the cannula assembly 300 and effectively ensuring the normal progress of the surgery. At the same time, the safety mechanism 130 can both lock and unlock the first operating member 10 and the latching mechanism 400, making the entire suture device assembly 1000 simple in structure and safe and reliable. In this embodiment, it is possible to prevent the locking mechanism 400 from being misoperated when the suture needle 30 is moving, so that the suture 100 is pulled proximally away from the cannula assembly 300, causing the needle outlet to be blocked by the cannula assembly 300, affecting needle exit; the needle retention port 21 to be blocked by the cannula assembly 300, affecting suture 31 to come loose; or the suture 31 to be stuck between the suture 100 and the cannula assembly 300, thereby affecting the normal progress of the operation.

[0136] Specifically, as can be seen from the third embodiment described above, the suture 100 includes a first component 110 connected to the first operating member 10; the safety mechanism 130 includes a second component 140; in this embodiment, the suture 100 further includes a third component 143. When the safety mechanism 130 is in the first position, in response to the first operating member 10 performing a first movement, the flap 40 moves from the closed position to the open position, and the first component 110 moves from the position separated from the second component 140 to the position engaged with the second component 140 to prevent the movement of the suture needle 30; the third component 143 separates from the third operating member 401 to unlock the latching mechanism 400 so that the latching member 402 can move from the position connected to the cannula assembly 300 to the position separated from the cannula assembly 300 in response to the operation of the third operating member 401, thereby separating the suture 100 from the cannula assembly 300. When the safety mechanism 130 is in the second position, the third component 143 engages with the locking mechanism 130 to lock the locking mechanism 400, the first component 110 separates from the second component 140, and the suture needle 30 performs a needle extension movement in response to the second movement of the first operating member 10.

[0137] More specifically, in one embodiment, such as Figures 33 to 36 , Figures 54 to 57As shown, the first component 110 is a first protrusion extending downward along the axial direction, the second component 140 is a second protrusion extending upward along the axial direction, and the third component 143 is a third protrusion disposed on the periphery of the body of the locking mechanism 130. The lower surface of the first protrusion is the first mating surface 111, and the upper surface of the second protrusion is the first limiting surface 141. The locking mechanism 400 also includes a second protrusion 406, which is disposed between the two first protrusions 405. Figure 54 and Figure 55 As shown, the safety mechanism 130 includes a second operating member 131. In the initial state, the safety mechanism 130 is located in the first position, and the third component 143 is separated from the locking mechanism 400. At this time, the locking mechanism 400 can be operated to separate the suture 100 from the cannula assembly 300, and the first component 110 and the second component 140 are spaced apart. The first operating member 10 can be operated. In response to the operation of the first operating member 10, the flap 40 moves from the closed position to the open position, as shown. Figure 33 As shown, the first component 110 includes a first mating surface 111, and the second component 140 includes a first limiting surface 141. In the initial state, the first mating surface 111 is separated from the first limiting surface 141, and the first operating member 10 can be operated to perform a first movement. When the flap 40 moves to the open position, the first component 110 moves from the position separated from the second component 140 to the position engaged with the second component 140. At this time, the first mating surface 111 engages with the first limiting surface 141 to prevent the second movement of the first operating member 10, that is, the first operating member 10 is locked and cannot drive the suture needle 30 to move. Figure 34 As shown, and as Figure 54 and Figure 55 As shown, the third component 143 remains separated from the locking mechanism 400. The second operating member 131 is continued to be operated in the second direction, moving it from the first position to the second position. In the second position, as... Figure 35 and Figure 36 As shown, the second component 140 disengages from the first component 110. At this time, the first mating surface 111 separates from the first limiting surface 141 again, thereby unlocking the first operating member 10 and enabling it to drive the suture needle 30 to move. Figure 56 and Figure 57 As shown, the third component 143 engages with the first protrusion 405 of the locking mechanism 400 to prevent the movement of the locking mechanism 400. At this time, the locking mechanism 400 cannot be operated, and the suture 100 maintains the connection of the cannula assembly 300. Of course, it is understood that the third component 143 can also act with other parts of the third operating member 401, such as with the second protrusion 406, as long as it can satisfy the requirement that the locking mechanism 130 is separated from the locking mechanism 400 in the first position and engaged with the locking mechanism 400 in the second position. No limitation is made here.

[0138] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. 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.

[0139] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A stapler assembly comprising a stapler and a sleeve assembly; characterized in that, The suture device includes a snap-fit ​​mechanism, a first operating element, a safety mechanism, and a suture needle; the snap-fit ​​mechanism includes a third operating element and a snap-fit ​​element connected to the third operating element, and the suture device is detachably connected to the cannula assembly via the snap-fit ​​element; the first operating element drives the suture needle to move; The insurance institution includes a first location and a second location; In the first position, the safety mechanism engages with the first actuating member to lock the first actuating member, thereby preventing the first actuating member from driving the suture needle to move; the safety mechanism disengages from the third actuating member to unlock the latching mechanism, and in response to the third actuating member being operated, the latching member moves from a connection position connected to the cannula assembly to a separation position separated from the cannula assembly to separate the suture from the cannula assembly; In the second position, the safety mechanism engages with the third actuating member to lock the latching mechanism so that the latching member remains connected to the cannula assembly; the safety mechanism disengages from the first actuating member to unlock the first actuating member, and in response to the movement of the first actuating member, the suture needle performs a needle withdrawal movement.

2. The stapler assembly of claim 1, wherein, The suture device further includes a wing that, in the first position, moves from a closed position to an open position in response to movement of the first actuating member; when the wing is in the open position, the first actuating member engages with the locking mechanism to be locked by the locking mechanism, thereby preventing the first actuating member from driving the suture needle.

3. The stapler assembly of claim 2, wherein, The suture device further includes a first component connected to the first actuating member; the locking mechanism includes a second component and a third component; in the first position, in response to the first actuating member performing a first movement, the flap moves from the closed position to the open position, and the first component moves from a disengaged position separated from the second component to an engaged position engaged with the second component to prevent the suture needle from moving; and the third component disengages from the third actuating member to unlock the locking mechanism; in the second position, the third component engages with the third actuating member to lock the locking mechanism, and the first component disengages from the second component; in response to a second movement of the first actuating member, the suture needle performs a needle withdrawal movement.

4. The stapler assembly of claim 3, wherein, The first component is a first protrusion extending downward along the axial direction, the second component is a second protrusion extending upward along the axial direction, and the third component is a third protrusion disposed on the periphery of the body of the safety mechanism; the lower surface of the first protrusion is engaged with the upper surface of the second protrusion, so that the first component is engaged with the second component.

5. The stapler assembly of claim 2, wherein, The first operating member drives the wing to move from the closed position to the open position by a first movement along a first direction, and the first operating member drives the suture needle to move by a second movement along the first direction; the safety mechanism further includes a second operating member, and in response to the movement of the second operating member along a second direction, the safety mechanism moves from the first position to the second position.

6. The stapler assembly of claim 1, wherein, The stapler further comprises a wing, the safety mechanism further has an initial position, at which the first operating member is combined with the safety mechanism and the safety mechanism is separated from the third operating member to unlock the clamping mechanism; in response to movement of the safety mechanism from the initial position to the first position, the first operating member is switched from a first combined state of being combined with the safety mechanism to a first separated state of being separated from the safety mechanism; in the first separated state, in response to movement of the first operating member, the wing moves from a closed position to an open position; when the wing is in the open position, the first operating member is in a second combined state of being combined with the safety mechanism to be locked by the safety mechanism, thereby preventing the first operating member from driving the stapling needle to move.

7. The stapler assembly of claim 6, wherein, The stapler further comprises a first component connected with the first operating member; the safety mechanism comprises a second component and a third component; one of the first component and the second component comprises a first matching surface, and the other comprises a first limiting surface and a second limiting surface; at the initial position, the third component is separated from the third operating member to unlock the clamping mechanism, and the first matching surface is combined with the first limiting surface to make the first operating member be in the first combined state; at the first position, the third component is separated from the third operating member to unlock the clamping mechanism, and the first matching surface is separated from the first limiting surface to make the first operating member be in the first separated state; when the wing is in the open position, the first matching surface is combined with the second limiting surface to make the first operating member be in the second combined state; at the second position, the third component is combined with the third operating member to lock the clamping mechanism; the first matching surface is separated from the second limiting surface to make the first operating member be in a second separated state.

8. The stapler assembly of claim 7, wherein, The first component is a first protrusion extending axially downward, a lower surface of the first protrusion is the first matching surface, and the second component is a second protrusion extending axially upward in a stepped manner, an upper surface of the second protrusion located proximally is the first limiting surface, and an upper surface of the second protrusion located distally is the second limiting surface.

9. The stapler assembly of claim 7, wherein, The first component is a first protrusion extending axially downward in a stepped manner, a lower surface of the first protrusion located distally is the first limiting surface, and a lower surface of the first protrusion located proximally is the second limiting surface; and the second component is a second protrusion extending axially upward, an upper surface of the second protrusion is the first matching surface.

10. The stapler assembly of claim 7 or 8 or 9, wherein, The third component is a third protrusion arranged on a circumferential side of a body of the safety mechanism.

11. The stapler assembly of claim 6, wherein, The first operating member drives the wing to move from the closed position to the open position in a first movement in a first direction, and drives the stapling needle to move in a second movement in the first direction; the safety mechanism further comprises a second operating member, in response to movement of the second operating member in a second direction, the safety mechanism moves from the initial position to the first position and then to the second position in sequence.

12. The stapler assembly of claim 5 or 11, wherein, The first direction is axial, and the second direction is circumferential.

13. The stapler assembly of claim 12, wherein, The first movement and the second movement are both linear movements, and the movement along the second direction is a rotational movement.

14. The stapler assembly of claim 2 or 6, wherein, The stapler further comprises a driving mechanism, the first operation member drives the wings and the stapling needles to move through the driving mechanism; the driving mechanism comprises a first driving part and a second driving part, the first driving part and the second driving part are arranged in axial direction, the first driving part is used for driving the wings to move, and the second driving part is used for driving the stapling needles to move.

15. The stapler assembly of claim 14, wherein, The first driving part comprises a first tooth part and a second tooth part, the second driving part comprises a third tooth part and a fourth tooth part; the stapler comprises two wings and two stapling needles, each wing comprises a wing gear, and each stapling needle comprises a stapling needle gear; the first tooth part and the second tooth part are used for respectively driving one wing gear to drive two wings to move, and the third tooth part and the fourth tooth part are used for respectively driving one stapling needle gear to drive two stapling needles to move.

16. The stapler assembly of claim 15, wherein, The first tooth part and the second tooth part are arranged in transverse direction, and the third tooth part and the fourth tooth part are located between the first tooth part and the second tooth part in the transverse direction.

17. The stapler assembly of claim 14, wherein, The wings and the stapling needles are coaxially arranged in the transverse direction.

18. The stapler assembly of claim 1, wherein, The third operation member is a button, and the button is pressed to switch the clamping member from the connected position to the separated position of the cannula assembly.

19. The stapler assembly of claim 18, wherein, The clamping mechanism further comprises a reset member, the reset member is connected with the third operation member, and the reset member is compressed and stored when the third operation member is operated.

20. The stapler assembly of claim 18, wherein, The clamping member comprises a clamping hook, the cannula assembly comprises a clamping groove, and the clamping hook is matched with the clamping groove to connect the stapler with the cannula assembly.

21. The stapler assembly of claim 8 or 9, wherein, The first matching surface and the first limiting surface abut in axial direction to combine the first matching surface with the first limiting surface, and the first matching surface and the second limiting surface abut in axial direction to combine the first matching surface with the second limiting surface.

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