Suture device

Abstract

The application discloses a suture device, which comprises a core tube assembly, two positioning wings and two wire cartridge parts. The core tube assembly comprises a working end and an operating end. The two positioning wings are respectively hinged to the working end of the core tube assembly. The two wire cartridge parts are independent of each other. The two positioning wings are configured to rotate around the hinged positions on the working end, so that the distal ends of the two positioning wings are close to or away from each other. Each wire cartridge part comprises a fixed part, at least one of the two wire cartridge parts comprises a wire storage part, and the two wire cartridge parts are respectively detachably connected to the distal ends of the two positioning wings through the fixed parts and are configured to move with the movement of the two positioning wings. The wire storage part is configured to store sutures. The suture device can improve the suture efficiency and success rate.

Description

Technical Field

[0001] This disclosure relates to a suture device. Background Technology

[0002] With the continuous development of medical and engineering technologies, laparoscopic surgery has been widely used due to its advantages such as high precision, high efficiency, and reduced workload for medical staff. Laparoscopic surgery, also known as endoscopy, is a minimally invasive surgical procedure. It typically involves making several small incisions in the patient's body surface and inserting a laparoscope equipped with a camera and slender surgical instruments into a body cavity (such as the abdominal or thoracic cavity). The surgeon observes the internal situation through an external monitor and performs the surgical procedure.

[0003] In laparoscopic surgery, a trocar is usually used to create and maintain a minimally invasive channel, and then a stapler or other surgical instruments are used to enter and exit the patient's body cavity through the minimally invasive channel to perform the surgical procedure; after the operation, the trocar site is sutured. Summary of the Invention

[0004] This disclosure provides a suture device. The suture device can store sutures in its suture compartment and guide and limit the extension of the suture. The suture compartment is detachably connected to the positioning wings. Therefore, the suture device allows for rapid suture replacement by replacing the suture compartment, eliminating the need to store and replace sutures in the core tube assembly, thereby significantly improving suturing efficiency. Furthermore, the two suture compartments are detachably connected to the distal ends of the two positioning wings via fixed portions and are configured to move with the movement of the two positioning wings. Thus, the suture compartments can act as extensions of the positioning wings, improving their positioning effect. When the suture compartments are located at the distal ends of the positioning wings, it also facilitates suture hooking by the suture needle, thereby improving hooking accuracy and ultimately increasing the suturing success rate.

[0005] At least one embodiment of this disclosure provides a suture device comprising: a core tube assembly including a working end and an operating end; two positioning wings, each hinged to the working end of the core tube assembly; two suture compartments, independent of each other, the two positioning wings being configured to rotate about a hinged position on the working end, such that the distal ends of the two positioning wings move closer to or further away from each other; each suture compartment includes a fixing portion, at least one of the two suture compartments includes a suture storage portion, the two suture compartments being detachably connected to the distal ends of the two positioning wings via the fixing portion and configured to move with the movement of the two positioning wings, the suture storage portion being configured to store suture thread.

[0006] For example, in a suture provided in one embodiment of this disclosure, the suture compartment further includes a suture routing section configured to guide and limit the extension of the suture.

[0007] For example, in a suture device provided in one embodiment of this disclosure, the movement trajectories of the two positioning wings include a closed position and an open position; in the closed position, the distal ends of the two positioning wings are arranged opposite each other and are located on the side of the working end of the core tube assembly away from the operating end; in the open position, the distal ends of the two positioning wings are located on both sides of the core tube assembly; the two suture compartments include a first suture compartment and a second suture compartment, the first suture compartment includes a first mating surface and a first contact surface, and the second suture compartment includes a second mating surface and a second contact surface; when the positioning wings are in the closed position, the first mating surface and the second mating surface are arranged opposite each other and are located on the side of the working end of the core tube assembly away from the operating end; when the positioning wings are in the open position, the first contact surface is configured to contact the tissue to be sutured together with the corresponding positioning wing, and the second contact surface is configured to contact the tissue to be sutured together with the corresponding positioning wing.

[0008] For example, one embodiment of the suture provided in this disclosure further includes: at least one elastic needle, each elastic needle being at least partially located within the core tube assembly and including a needle tip and a hook portion; and an elastic needle drive mechanism located within the core tube assembly, the working end of the core tube assembly including an elastic needle outlet, the elastic needle drive mechanism being configured to drive the needle tip and the hook portion of the elastic needle to extend from the elastic needle outlet, and when the positioning wing is in the open position, the elastic needle drive mechanism being configured to drive the hook portion of the elastic needle to hook the outer extension of the suture section.

[0009] For example, in a suture device provided in one embodiment of this disclosure, when the positioning wing is in the open position, the distance between the elastic needle outlet and the positioning wing in the extension direction of the core tube assembly ranges from 5 to 20 millimeters.

[0010] For example, in a suture device provided in one embodiment of this disclosure, the suture includes a first outer extension and a second outer extension. The thread guide of the first suture compartment is configured to guide and position the first outer extension, and the thread guide of the second suture compartment is configured to guide and position the second outer extension. The at least one elastic needle includes a first elastic needle and a second elastic needle arranged in a cross configuration. The hook portion of the first elastic needle is configured to hook the first outer extension in the thread guide of the first suture compartment, and the hook portion of the second elastic needle is configured to hook the second outer extension in the thread guide of the second suture compartment.

[0011] For example, in a suture provided in one embodiment of this disclosure, the suture delivery section includes: a suture channel penetrating the suture compartment and including a channel inlet and a channel outlet; and a suture positioning structure configured to limit the outer extension of the suture and such that the outer extension overlaps with the channel outlet.

[0012] For example, in a suture device provided in one embodiment of this disclosure, the channel inlet includes a guide portion, the guide portion including a guide slope, such that the cross-sectional area of ​​the guide portion gradually decreases along the guide direction.

[0013] For example, one embodiment of the suture provided in this disclosure further includes: a suture, comprising a suture storage segment and two extension segments, the suture storage segment being located in the suture storage section, and the two extension segments being located in the two thread routing sections of the two suture compartments respectively.

[0014] For example, in a suture provided in one embodiment of this disclosure, the extension includes a protrusion that is configured to be caught in the hook portion of an elastic needle after the extension is hooked by the hook portion of the elastic needle.

[0015] For example, one embodiment of the suture provided in this disclosure further includes: a positioning wing drive mechanism, at least partially located within the core tube assembly, the positioning wing drive mechanism being configured to drive the two positioning wings to rotate about hinged positions on the working end, respectively.

[0016] For example, in a suture provided in one embodiment of this disclosure, the positioning wing drive mechanism includes a locking member configured to lock the two positioning wings in the open position.

[0017] For example, in a suture provided in one embodiment of this disclosure, the distal end of each of the positioning wings includes: an outer sidewall including a fixing groove; the fixing portion of the suture compartment includes an elastic hook configured to cooperate with the fixing groove to detachably connect the suture compartment and the positioning wing.

[0018] For example, in a suture device provided in one embodiment of this disclosure, the fixing groove includes a fixing hook and a quick-release part. The fixing hook is configured to cooperate with the elastic hook to prevent the suture compartment from disengaging from the positioning wing. The quick-release part is configured to accommodate the elastic hook when the elastic hook undergoes elastic deformation, so that the elastic hook and the fixing hook disengage.

[0019] For example, one embodiment of the suture provided in this disclosure further includes: an operating mechanism connected to the operating end of the core tube assembly, the operating mechanism having a first stroke and a second stroke, the first stroke of the operating mechanism being configured to drive the two positioning wings to move from the closed position to the open position, and the second stroke of the operating mechanism being configured to drive the elastic needle to extend from the elastic needle outlet, and cause the hook portion of the elastic needle to hook the outer extension of the suture portion.

[0020] For example, one embodiment of the suture provided in this disclosure further includes a safety lock mechanism connected to the operating mechanism. The safety lock mechanism includes a first state and a second state. In the first state, the safety lock mechanism is fixed to the operating mechanism and prevents the operating mechanism from moving toward the working end of the core tube assembly. In the second state, the safety lock mechanism allows the operating mechanism to move toward the working end of the core tube assembly.

[0021] For example, in a suture provided in one embodiment of this disclosure, the suture storage section includes a suture storage cavity, and the suture further includes a suture storage mechanism located in the suture storage cavity and configured to wind and store the suture. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0023] Figure 1 This is a schematic diagram of the structure of a suture device in the closed state of its online compartment, according to an embodiment of this disclosure.

[0024] Figure 2 This is a partially enlarged schematic diagram of a suture device in the open state of its online compartment, according to an embodiment of this disclosure.

[0025] Figure 3 This is a partially enlarged schematic diagram of a suture device with its positioning wings open, according to an embodiment of this disclosure.

[0026] Figure 4 A partially enlarged schematic diagram of another suture device provided in an embodiment of this disclosure with the positioning wings open;

[0027] Figure 5 This is a partial cross-sectional schematic diagram of a suture device provided in an embodiment of the present disclosure;

[0028] Figure 6 This is a partially enlarged schematic diagram of the distal end of a suture provided in an embodiment of the present disclosure;

[0029] Figure 7 This is a partially enlarged schematic diagram of the distal end of another suture provided in an embodiment of the present disclosure;

[0030] Figure 8 This is a schematic diagram of the structure of another suture provided in one embodiment of the present disclosure;

[0031] Figure 9 This is a partially enlarged schematic diagram of another suture provided in an embodiment of the present disclosure;

[0032] Figure 10 This is a partially enlarged schematic diagram of another suture provided in an embodiment of the present disclosure;

[0033] Figure 11 This is a schematic diagram of the structure of a positioning wing in a stitcher according to an embodiment of the present disclosure;

[0034] Figure 12 This is a schematic diagram of the structure of a positioning wing in another stitcher provided in an embodiment of the present disclosure;

[0035] Figure 13 This is a schematic diagram of the structure of another suture provided in one embodiment of the present disclosure;

[0036] Figure 14 This is a cross-sectional schematic diagram of a suture device provided in one embodiment of the present disclosure;

[0037] Figure 15 This is a schematic diagram of the structure of another suture provided in one embodiment of the present disclosure;

[0038] Figure 16 This is a partially enlarged schematic diagram of another suture provided in an embodiment of the present disclosure;

[0039] Figure 17A This is a schematic diagram of the structure of a guide member in a suture device according to an embodiment of the present disclosure;

[0040] Figure 17B This is a schematic diagram illustrating the cooperation relationship between an elastic needle and a guide in a suture device according to an embodiment of the present disclosure.

[0041] Figure 18 This is a partially enlarged schematic diagram of another suture provided in an embodiment of the present disclosure;

[0042] Figure 19 This is a partially enlarged schematic diagram of another suture provided in an embodiment of the present disclosure;

[0043] Figure 20 This is a schematic diagram of another suture device in the closed state of the online compartment, according to an embodiment of this disclosure;

[0044] Figure 21 A partially enlarged schematic diagram of another suture device in the open state of the online compartment, provided as an embodiment of this disclosure;

[0045] Figure 22 A partially enlarged schematic diagram of another suture device provided in an embodiment of this disclosure with the positioning wings open;

[0046] Figure 23 A schematic diagram of the structure of a positioning wing in another stitcher provided according to an embodiment of this disclosure; and

[0047] Figure 24 This is a schematic diagram of the positioning wing in another stitcher provided in an embodiment of the present disclosure. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0049] It is important to understand that the terms "proximal" and "distal" as used herein are relative to the operator performing the suturing operation with the suture device. "Proximal" refers to the side closer to the operator, and "distal" refers to the side farther from the operator. Similarly, the terms "proximal end" and "distal end" are also relative to the operator performing the suturing operation with the suture device. "Proximal end" refers to the end closer to the operator, and "distal end" refers to the end farther from the operator. For the suture device, the end closer to the user during use is the proximal end, and the end farther from the user is the distal end. Similarly, for individual components within the suture device, the end closer to the user during use is the proximal end of that component, and the end farther from the user is the distal end.

[0050] In this disclosure, unless otherwise expressly 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 components or the interaction between two components, such as contact. Those skilled in the art can understand the specific meaning of the above terms in this disclosure 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 excluding 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.

[0051] This disclosure provides a suture device including a core tube assembly, two positioning wings, and two suture compartments. The core tube assembly includes a working end and an operating end. The two positioning wings are respectively hinged to the working end of the core tube assembly. The two suture compartments are independent of each other. The two positioning wings are configured to rotate about their hinged positions on the working ends, such that the distal ends of the two positioning wings move closer to or further away from each other. Each suture compartment includes a fixing part and a suture guiding part. At least one of the two suture compartments includes a suture storage part. The two suture compartments are detachably connected to the distal ends of the two positioning wings via the fixing part and are configured to move with the movement of the two positioning wings. The suture storage part is configured to store suture, and the suture guiding part is configured to guide and limit the extension of the suture. On the one hand, this suture device can store suture in the suture compartments and guide and limit the extension of the suture. Since the suture compartments are detachably connected to the positioning wings, the suture device can quickly change sutures by replacing the suture compartments, eliminating the need to store and change sutures in the core tube assembly, thereby greatly improving suture efficiency. On the other hand, the two suture compartments are detachably connected to the distal ends of the two positioning wings via fixed parts and are configured to move with the movement of the two positioning wings. Therefore, the suture compartments can serve as extensions of the positioning wings, thereby improving the positioning effect of the positioning wings. Furthermore, when the suture compartments are located at the distal ends of the positioning wings, it is also convenient for the suture needle to hook the suture, thus improving the accuracy of hooking the suture and thereby increasing the success rate of suturing.

[0052] The suture device provided in the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0053] Figure 1 This is a schematic diagram of the structure of a suture device in the closed state of its online compartment, according to an embodiment of this disclosure. Figure 2 This is a partially enlarged schematic diagram of a suture device in the open state of its online compartment, according to an embodiment of this disclosure. Figure 2 The positioning wing and suture compartment located at the distal end of the stitcher are shown.

[0054] like Figure 1As shown, the suture device 800 includes a core tube assembly 100, two positioning wings 210, and two independent suture compartments 300. The core tube assembly 100 includes a working end 110 and an operating end 120. The working end 110 can extend into the cavity, and the operating end 120 can be operated by the user or used to set an operating mechanism. The working end 110 is the distal end of the core tube assembly 100, and the operating end 120 is the proximal end of the core tube assembly 100.

[0055] like Figure 1 and Figure 2 As shown, two positioning wings 210 are respectively hinged to the working end 100A of the core tube assembly 100, for example, by a hinge shaft; the two positioning wings 210 are configured to rotate about the hinge position on the working end 110, so that the distal ends of the two positioning wings 210 move closer or further apart, thus having a closed state and an open state; each suture compartment 300 includes a fixing part 310 and a thread routing part 320, and at least one of the two suture compartments 300 includes a thread storage part 330. The two suture compartments 300 are detachably connected to the distal ends of the two positioning wings 210 respectively through the two fixing parts 310, and are configured to move with the movement of the two positioning wings 210. The thread storage part 330 in the suture compartment 300 is configured to store the suture, and the thread routing part 320 is configured to guide and limit the extension of the suture. It should be noted that the aforementioned extension refers to the part of the suture extending outside the thread storage part.

[0056] When using the suture device provided in this embodiment for suturing, the positioning wings can be set to the closed state first. At this time, the two suture compartments are also closed, which allows the distal end of the suture device to have a smaller size, so that it can be inserted into the cavity through the opening. Then, the distal ends of the two positioning wings are driven away from each other, so that the two positioning wings are in the open or unfolded state, so that the two positioning wings and each suture compartment can jointly position the tissue to be sutured. Finally, since the two suture compartments store sutures, and the thread guide also guides and limits the extension of the suture, when the two positioning wings and the two suture compartments are in the open state, the suture needle can pass through the tissue to be sutured and hook the suture from the two suture compartments. Then, by retracting the suture needle, the extension of the suture is brought out, so that the suture passes through the tissue to be sutured, and the middle section of the suture is located inside the opening. When the suture is tightened, the suture can close the opening. It should be noted that the above-described suturing process is a schematic description of a suturing process based on the suturing device provided in the embodiments of this disclosure. The embodiments of this disclosure include, but are not limited to, this. Based on the structure of the suturing device, other suitable suturing processes can also be used to achieve suturing.

[0057] In the suture device provided in this embodiment, the suture device can store sutures in the suture compartment and guide and limit the extension of the suture. The suture compartment is detachably connected to the positioning wings. Therefore, the suture device can quickly change sutures by replacing the suture compartment, eliminating the need to store and change sutures in the core tube assembly, thereby greatly improving suture efficiency and reducing the user's operational difficulty. For example, after completing a suture operation, the suture can be changed by removing the two suture compartments and replacing them with new ones, allowing for the next suture operation. On the other hand, the two suture compartments are detachably connected to the distal ends of the two positioning wings via fixed parts and configured to move with the movement of the two positioning wings. Therefore, the suture compartment can serve as an extension of the positioning wings, thereby improving the positioning effect of the positioning wings (or, the size of the positioning wings can be reduced without changing the overall size of the positioning wings and suture compartments). In addition, since the two suture compartments are detachably connected to the distal ends of the two positioning wings via fixed parts, when the positioning wings are in the open position and the suture compartments are located at the distal ends of the positioning wings, the suture compartments fit against the tissue to be sutured and are located on both sides of the core tube assembly, which facilitates the suture needle to hook the suture for suturing. Therefore, this suturer can also improve the accuracy of hooking the suture, thereby improving the success rate of suturing.

[0058] It should be noted that this suture device can be used in laparoscopic surgery. For example, a puncture hole is formed in the tissue, and a trocar is inserted through the puncture hole to establish and maintain a minimally invasive channel. Then, a stapler or other surgical instruments are used to enter and exit the patient's body cavity through the minimally invasive channel to perform surgical procedures. After the surgery, the aforementioned suture device is used to suture the puncture hole. At this time, the positioning wings can be set to the closed state to extend into the cavity through the minimally invasive channel. Then, the distal ends of the two positioning wings are driven away from each other, so that the two positioning wings are in the open or unfolded state, so that the two positioning wings and each suture compartment can jointly position the tissue to be sutured. Finally, the suture needle can pass through the tissue to be sutured and hook the suture from the two suture compartments. Then, by withdrawing the suture needle, the outer extension of the suture is brought out, so that the suture passes through the tissue to be sutured, and the middle section of the suture is located inside the minimally invasive channel. When the suture is tightened, the suture can close the puncture hole.

[0059] Figure 3 This is a partially enlarged schematic diagram of a suture device with its positioning wings open, according to an embodiment of this disclosure. Figure 4 This is a partially enlarged schematic diagram of another suture device provided in an embodiment of the present disclosure with the positioning wings in the open state. Figure 3 and Figure 4 The positioning wing and suture compartment located at the distal end of the stitcher are shown. It should be noted that... Figure 1 The structure of the suture device in the closed state of the suture compartment is shown. In this closed state, the positioning wings are also closed. Figure 1 This can also be seen as a structural diagram of the stitcher in the closed position of the positioning wings.

[0060] like Figure 1 , Figure 3 and Figure 4 As shown above, the two positioning wings 210 are configured to rotate about a hinged position on the working end 110, so that the distal ends of the two positioning wings 210 move closer to or further away from each other; the movement trajectory of the two positioning wings 210 includes a closed position and an open position; in the closed position, the distal ends of the two positioning wings 210 are arranged opposite each other and are located on the side of the working end 110 of the core tube assembly 100 away from the operating end 120; in the open position, the distal ends of the two positioning wings 210 are located on both sides of the core tube assembly 100; the two wire compartments 300 include a first wire compartment 300A and a second wire compartment 300B, the first wire compartment 300A... 00A includes a first mating surface 341 and a first contact surface 351, and the second suture compartment 300B includes a second mating surface 342 and a second contact surface 352. When the two positioning wings 210 are in the closed position, the first mating surface 341 and the second mating surface 342 are arranged opposite to each other and are located on the side of the working end 110 of the core tube assembly 100 away from the operating end 120. When the two positioning wings 210 are in the open position, the first contact surface 351 is configured to contact the tissue to be sutured together with the corresponding positioning wing 210, and the second contact surface 352 is configured to contact the tissue to be sutured together with the corresponding positioning wing 210. Thus, the suture compartment can serve as an extension of the positioning wing, thereby improving the positioning effect of the positioning wing; or, the size of the positioning wing can be reduced without changing the overall size of the positioning wing and the suture compartment. In addition, since the two suture compartments are in contact with the tissue to be sutured, after the suture needle hooks the two outer extensions of the suture in the two suture compartments, it can quickly retract to the tissue to be sutured to complete the suturing, thereby improving the accuracy and efficiency of suturing.

[0061] In some examples, as described above, the movement trajectories of the first positioning wing 210A and the second positioning wing 210B include a closed position and an open position; such as Figure 1 As shown, in the closed position, the distal ends of the first positioning wing 210A and the second positioning wing 210B are positioned opposite each other, and are located on the side of the working end 110 of the core tube assembly 100 away from the operating end 120, thus facilitating insertion into the cavity; at this time, the extension direction of the first positioning wing 210A and the extension direction of the second positioning wing 210B are approximately parallel; as Figure 3 As shown, in the open position, the angle between the extension direction of the first positioning wing 210A and the extension direction of the second positioning wing 210B is greater than or equal to 180 degrees. It should be noted that the extension direction of the positioning wing mentioned above refers to the direction from the proximal end to the distal end of the positioning wing.

[0062] In some examples, such as Figure 1 As shown, the shapes of the first suture compartment 300A and the second suture compartment 300B are configured to combine into a column, the difference between the outer diameter of the column and the outer diameter of the core tube assembly 100 being less than 2 mm. Thus, the first and second suture compartments can form a column during the insertion of the suture device into the cavity, facilitating insertion without damaging the tissue.

[0063] In some examples, the column formed by the two line compartments includes one of the following: cylinder, cone, ellipsoid, and frustum. Of course, embodiments of this disclosure include, but are not limited to, the column can also be a column of other shapes.

[0064] In some examples, such as Figure 1 As shown, the far ends of the first line compartment 300A and the far ends of the second line compartment 300B are rounded to avoid forming sharp edges or structures.

[0065] In some examples, such as Figure 3 and Figure 4 As shown, the first cable tray 300A includes a first fixing part 310A and a first cable routing part 320A, and the second cable tray 300B includes a second fixing part 310B and a second cable routing part 320B; the two positioning wings 210 include a first positioning wing 210A and a second positioning wing 210B; the first cable tray 300A is detachably connected to the distal end of the first positioning wing 210A via the first fixing part 310A, and the second cable tray 300B is detachably connected to the distal end of the second positioning wing 210B via the second fixing part 310B. For example, the distal ends of the first fixing part 310A and the first positioning wing 210A, and the distal ends of the second fixing part 310B and the second positioning wing 210B can be detachably connected by a snap-fit ​​mechanism.

[0066] In some examples, such as Figure 3 and Figure 4 As shown, the first positioning wing 210A is hinged to the first hinge position 1131 of the working end 110 of the core tube assembly 100; for example, the first positioning wing 210A can be hinged to the first hinge position 1131 via a hinge axis. The second positioning wing 210B is hinged to the second hinge position 1132 of the working end 110 of the core tube assembly 100; for example, the second positioning wing 210B can be hinged to the second hinge position 1131 via a hinge axis. In this case, the first positioning wing 210A and the second positioning wing 210B are configured to rotate about the first hinge position 1131 and the second hinge position 1132, respectively, so that the distal ends of the first positioning wing 210A and the second positioning wing 210B move closer to or further away from each other.

[0067] In some examples, such as Figure 3 and Figure 4As shown, the suture 700 includes a first extension 710 and a second extension 720. The first thread section 320A of the first thread compartment 300A is configured to guide and position the first extension 710, and the second thread section 320B of the second thread compartment 300B is configured to guide and position the second extension 720.

[0068] In some examples, such as Figure 3 and Figure 4 As shown, the first thread storage section 300A includes a first thread storage section 330A, and the second thread storage section 300B includes a second thread storage section 330B. When the first thread storage section 300A and the second thread storage section 300B are arranged at a distance from each other, the first thread storage section 330A and the second thread storage section 330B can jointly form a thread storage cavity, which can store sutures.

[0069] In some examples, such as Figure 3 and Figure 4 As shown, the above-mentioned suture storage section 330 includes a suture storage cavity 335. At this time, the suture 800 also includes a suture storage mechanism 350, which is located in the suture storage cavity 335 and is configured to wind and store the suture.

[0070] For example, the aforementioned wire storage mechanism 350 can be a roller. Of course, the embodiments disclosed herein are not limited to this, and the aforementioned wire storage mechanism can also be in other forms.

[0071] In some examples, such as Figure 3 and Figure 4 As shown, each suture compartment 300 includes a suture channel 320 and a suture positioning structure 325. The suture channel 324 extends through the suture compartment 300. For example, the suture channel 324 extends through the suture compartment 300 in a direction perpendicular to the mating surface of the suture compartment 300. The suture channel 324 includes a channel inlet 3241 and a channel outlet 3242. The suture positioning structure 325 is configured to restrict the outer extension of the suture and overlap the outer extension with the channel outlet 3242 of the suture channel 324, thereby allowing the suture needle to hook the outer extension of the suture through the suture channel 324. For example, when the two suture compartments 300 move to the open state with the two positioning wings 210, the extending direction of the suture channel 324 of the suture compartment 300 is approximately the same as the extending direction of the core tube assembly 100. Therefore, the suture needle can easily extend into the suture channel 324 and hook the suture from the suture channel 324.

[0072] In some examples, such as Figure 3 and Figure 4 As shown, the above-mentioned suture positioning structure 325 can be a tension receiving structure, which is provided with a tension receiving groove to receive and tension at least a portion of the outer extension, thereby tensioning and limiting the outer extension of the suture.

[0073] In some examples, the material of the aforementioned tension-retaining structure includes elastic materials such as rubber or silicone.

[0074] In some examples, such as Figure 3 and Figure 4 As shown, the first thread feeding section 320A of the first thread compartment 300A includes a first thread hooking channel 324A and a first thread positioning structure 325A. The first thread hooking channel 324A penetrates the first thread compartment 300A. The first thread positioning structure 325A is configured to restrict the first outer extension 710 of the suture, and the first outer extension 710 overlaps with the first channel outlet 3242A of the first thread hooking channel 324A, thereby allowing the suture needle to hook the first outer extension 710 of the suture through the first thread hooking channel 324A. The first thread positioning structure 325A can be a tensioning and receiving structure, which is provided with a tensioning and receiving groove to receive and tension at least a portion of the first outer extension 710, thereby tensioning and limiting the outer extension of the suture.

[0075] In some examples, such as Figure 3 and Figure 4 As shown, the second thread feeding section 320B of the second thread compartment 300B includes a second hooking channel 324B and a second suture positioning structure 325B. The second hooking channel 324B penetrates the second thread compartment 300B. The second suture positioning structure 325B is configured to restrict the second outer extension 720 of the suture, such that the second outer extension 720 overlaps with the second channel outlet 3242B of the second hooking channel 324B, thereby allowing the suture needle to hook the second outer extension 720 of the suture through the second hooking channel 324B. The second suture positioning structure 325B can be a tensioning and receiving structure, which is provided with a tensioning and receiving groove to receive and tension at least a portion of the second outer extension 720, thereby tensioning and limiting the outer extension of the suture.

[0076] In some examples, such as Figure 3 and Figure 4 As shown, the size of the channel entrance 3241 of the suture channel 324 is larger than the size of the channel exit 3242 to guide the suture needle through the suture channel 324 to hook the outer extension. In other words, by setting the size of the channel entrance to be larger than the size of the channel exit, the suture channel can guide the suture needle, ensuring that even if the needle deviates slightly, it can still be guided to the outer extension of the suture and hook the thread. Therefore, through the above configuration, the suture device can also improve the success rate and stability of suture hooking.

[0077] In some examples, such as Figure 3 and Figure 4As shown, the suture channel 324 includes a guide part 3243 and a wiring part 3244 arranged sequentially in the guiding direction from the channel entrance 3241 to the channel exit 3242. The guide part 3243 includes a guide slope 3245, so that the cross-sectional area of ​​the guide part 3243 gradually decreases along the guiding direction, thereby playing a guiding role for the suture needle.

[0078] In some examples, such as Figure 3 and Figure 4 As shown, the channel entrance 3241 of the hook channel 324 is located on the first contact surface 351 and the second contact surface 352.

[0079] Figure 5 This is a partial cross-sectional schematic diagram of a suture device provided in an embodiment of the present disclosure; Figure 6 This is a partially enlarged schematic diagram of the distal end of a suture provided in an embodiment of the present disclosure; Figure 7 This is a partially enlarged schematic diagram of the distal end of another suture provided in one embodiment of this disclosure. It should be noted that the diagram is designed to clearly show the elastic needle. Figure 5 The production line warehouse department was eliminated. Figure 5 The location and structure of the line compartment in the illustrated embodiment can be found in [reference needed]. Figure 6 and Figure 7 As shown.

[0080] like Figure 5 , Figure 6 and Figure 7 As shown, the suture device 800 also includes at least one resilient needle 410 and a resilient needle drive mechanism 420; each resilient needle 410 is at least partially located within the core tube assembly 100 and configured to extend from and retract from the core tube assembly 100. The resilient needle 410 includes a needle tip 411 for piercing tissue and a suture hook 412 for hooking suture. The elastic needle drive mechanism 420 is located within the core tube assembly 100. The working end 110 of the core tube assembly 100 includes an elastic needle outlet 112, located near the operating end 120 at the hinge position between the positioning wing 210 and the working end 110. The elastic needle drive mechanism 420 is configured to drive the needle tip 411 and the hook portion 422 of the elastic needle 410 to extend from the elastic needle outlet 112, and to drive the elastic needle 410 to retract into the core tube assembly 100. When the positioning wing 210 is in the open position, the elastic needle drive mechanism 420 is configured to drive the hook portion 412 of the elastic needle 410 to hook the outer extension of the thread feed portion 320 of the corresponding suture compartment portion 300. It should be noted that the above-described elastic needle is one implementation of the suture needle described above.

[0081] When using the suture provided in this example, with the two positioning wings and two suture compartments in the open state, the elastic needle drive mechanism drives the elastic needle from the elastic needle outlet of the core tube assembly. The needle tip then passes through the hook channel of the corresponding suture compartment and contacts the outer extension of the thread in the thread guide section. After the needle tip and hook extend beyond the outer extension, the elastic needle drive mechanism retracts the elastic needle. During this retraction, the hook hook catches the outer extension of the suture and pulls it out of the suture compartment. When the elastic needle drive mechanism fully retracts the elastic needle into the core tube assembly, the outer extension of the suture also enters the core tube assembly along with the elastic needle. After the core tube assembly is withdrawn from the opening, it can tighten the opening by pulling the suture in, thus closing the opening. It should be noted that the above suturing process is a schematic description of a suturing process based on the suture provided in this disclosure embodiment. This disclosure embodiment includes, but is not limited to, this. Based on the structure of this suture, other suitable suturing processes can also be used to achieve suturing.

[0082] In the suture device provided in this example, by incorporating the aforementioned elastic needle and elastic needle drive mechanism, the suture device integrates the elastic needle into the core tube assembly, thereby improving integration and reducing the difficulty of operation for the user. Furthermore, since the positions of the elastic needle outlet and the suture compartment are pre-designed and correspond to each other, the suture device can accurately and quickly retrieve the suture from the suture compartment and complete the suture. Therefore, this suture device has high suture accuracy and efficiency. On the other hand, since the suture compartment is located at the distal end of the positioning wings, when both positioning wings are open, the distance between the suture retrieval channel of the suture compartment and the axis of the core tube assembly is relatively large. With the use of an elastic needle, the greater this distance, the greater the thickness of tissue the elastic needle can penetrate. Therefore, this suture device can penetrate thicker tissue, thereby improving the strength of the suture.

[0083] In some examples, such as Figure 5 , Figure 6 and Figure 7 As shown, in each elastic needle 410, the hook portion 412 can be a hook groove located below the needle tip portion 411, thereby facilitating hooking.

[0084] In some examples, such as Figure 5 , Figure 6 and Figure 7 As shown, when the positioning wing 210 is in the open position, the distance between the elastic needle outlet 112 and the positioning wing 210 in the extending direction of the core tube assembly 100 ranges from 5 to 20 mm. This allows the suturer to penetrate thicker tissue, thereby improving the strength of the suture. It should be noted that the aforementioned distance refers to the distance between the geometric center of the elastic needle outlet and the positioning wing.

[0085] For example, when the positioning wing 210 is in the open position, the distance between the elastic needle outlet 112 and the positioning wing 210 in the extension direction of the core tube assembly 100 is 10, 12, 14, 16 or 18 mm.

[0086] In some examples, such as Figure 5 , Figure 6 and Figure 7 As shown, the suture 700 includes a first outer extension 710 and a second outer extension 720. The thread guide 320A of the first thread reservoir 300A is configured to guide and position the first outer extension 710, and the thread guide 320B of the second thread reservoir 300B is configured to guide and position the second outer extension 720. The aforementioned at least one elastic needle 410 includes a first elastic needle 410A and a second elastic needle 410B arranged in a cross configuration. The hook portion 412 of the first elastic needle 410A is configured to hook the first outer extension 710 in the thread guide 320A of the first thread reservoir 300A, and the hook portion 412 of the second elastic needle 410B is configured to hook the second outer extension 720 in the thread guide 320B of the second thread reservoir 300B.

[0087] In some examples, such as Figure 5 , Figure 6 and Figure 7 As shown, the first elastic needle 410A includes a first needle tip 411A and a first hook portion 412A; the second elastic needle 410B includes a second needle tip 412B and a second hook portion 412B.

[0088] In some examples, such as Figure 5 , Figure 6 and Figure 7 As shown, the working end 110 of the core tube assembly 100 includes a first elastic needle outlet 112A and a second elastic needle outlet 112B; that is, the aforementioned elastic needle outlet 112 includes a first elastic needle outlet 112A and a second elastic needle outlet 112B. The first elastic needle outlet 112A is located at the first hinge position 1131 on the side near the operating end 120, and the second elastic needle outlet 112B is located at the second hinge position 1132 on the side near the operating end 120.

[0089] In some examples, such as Figure 5 , Figure 6 and Figure 7As shown, the aforementioned elastic needle driving mechanism 420 can be an elastic needle driving rod 425, which is configured to drive the first needle tip 411A and the first hook portion 412A of the first elastic needle 410A to extend from the first elastic needle outlet 112A, and to drive the second needle tip 411B and the second hook portion 412B of the second elastic needle 410B to extend from the second elastic needle outlet 112B. When the first positioning wing 210A and the second positioning wing 210B are in the open position, the elastic needle driving rod 425 is configured to drive the first hook portion 412A to hook the first outer extension 710 in the first thread routing portion 320A, and to drive the second hook portion 412A to hook the second outer extension 720 in the second thread routing portion 320.

[0090] In some examples, such as Figure 5 , Figure 6 and Figure 7 As shown, when the first positioning wing 210A and the second positioning wing 210B are in the open position, the distance between the first elastic needle outlet 112A and the first hinge position 1131 in the extension direction of the core tube assembly 100 ranges from 5 to 20 mm, and the distance between the second elastic needle outlet 112B and the second hinge position 1132 in the extension direction of the core tube assembly 100 ranges from 5 to 20 mm.

[0091] In some examples, such as Figure 5 , Figure 6 and Figure 7 As shown, the distance between the first elastic needle outlet 112A and the first hinge position 1131 in the extending direction of the core tube assembly 100 and the distance between the second elastic needle outlet 112B and the second hinge position 1132 in the extending direction of the core tube assembly 100 are approximately equal. It should be noted that the definition of "approximately equal" in this embodiment includes the case where the two values ​​are completely equal, and also the case where the ratio of the difference between the two values ​​to the average of the two values ​​is less than or equal to 5%.

[0092] In some examples, such as Figure 5 , Figure 6 and Figure 7As shown, with respect to the first thread compartment 300A, the first thread guide 320A includes a first thread hooking channel 324A and a first thread positioning structure 325A. The first thread hooking channel 324A penetrates the first thread compartment 300A and includes a first channel inlet 3241A and a first channel outlet 3242A. The first thread positioning structure 325A is configured to restrict the first outer extension 710 of the thread 700, such that the first outer extension 710 overlaps with the first channel outlet 3242A. Thus, when the first elastic needle 410A extends into the first thread hooking channel 324A and extends out of the first channel outlet 3242A, the first elastic needle 410A can contact the first outer extension 710; when the first elastic needle 410A is retracted, the first hooking portion 412A of the first elastic needle 410A can hook the first outer extension 710.

[0093] In some examples, such as Figure 5 , Figure 6 and Figure 7 As shown, the size of the first channel inlet 3241A of the first hook channel 324A is larger than the size of the first channel outlet 3142A to guide the first hook portion 412A of the first elastic needle 410A through the first hook channel 324A to hook the first extension 710A.

[0094] In some examples, such as Figure 5 , Figure 6 and Figure 7 As shown, with respect to the second thread compartment 300B, the second thread guide 320B includes a second thread hooking channel 324B and a second thread positioning structure 325B. The second thread hooking channel 324B penetrates the second thread compartment 300B and includes a second channel inlet 3241B and a second channel outlet 3242B. The second thread positioning structure 325B is configured to restrict the second extension 720 of the thread 700, such that the second extension 720 overlaps with the second channel outlet 3242B. Thus, when the second elastic needle 410B extends into the second thread hooking channel 324B and extends out of the second channel outlet 3242B, the second elastic needle 410B can contact the second extension 710; when the second elastic needle 410B is retracted, the second hooking portion 412B of the second elastic needle 410B can hook the second extension 710.

[0095] In some examples, such as Figure 5 , Figure 6 and Figure 7 As shown, the size of the second channel inlet 3241B of the second hook channel 324B is larger than the size of the second channel outlet 3242B to guide the second hook portion 412B of the second elastic needle 410B through the second hook channel 324B to hook the second extension 720.

[0096] In some examples, such as Figure 5 , Figure 6 and Figure 7 As shown, when the first positioning wing 210A and the second positioning wing 210B are in the open position, the first channel outlet 3242A is along the arrangement direction of the first positioning wing 210A and the second positioning wing 210B ( Figure 7 The centerline extending laterally (in the middle) and the second channel outlet 3242B along the arrangement direction of the first positioning wing 210A and the second positioning wing 210B (in the middle) Figure 7 The center lines extending laterally (in the middle) do not overlap. That is, the first and second channel exits are staggered, facilitating the alignment of the two intersecting elastic needles with the first and second channel exits respectively, thereby improving the accuracy and stability of the suture. It should be noted that the center line of the aforementioned channel exit refers to the center line extending in the direction of the suture compartment, while the direction of the suture compartment refers to the direction from the proximal end to the distal end of the suture compartment.

[0097] In some examples, such as Figure 7 As shown, the suture 800 also includes the aforementioned suture 700; the suture 700 includes a suture storage section 730 and the aforementioned two extension sections 710 and 720; the suture storage section 730 of the suture 700 may be located in the suture storage section 330 of the suture compartment section 300, and the two extension sections 710 and 720 are respectively located in the two thread routing sections 320 of the two suture compartment sections 300.

[0098] In some examples, such as Figure 7 As shown, the aforementioned extension portions 710 and 720 may each include protrusions 712 and 722, which are configured to be locked in the hook portion 412 after the extension portions 710 and 720 are hooked by the hook portion 412 of the elastic needle 410, to prevent the sewing thread from falling off the hook portion 412.

[0099] In some examples, such as Figure 7 As shown, the first outer extension 710 of the suture 700 includes a first protrusion 712, the outer diameter of which is larger than the diameter of the first outer extension 710, so that it can be held in the first hook portion 412A, thereby fixing the first outer extension 710 and the first hook portion 412A. It should be noted that the above-mentioned first protrusion may be a knot formed by the suture itself, or a protrusion formed by other materials; this embodiment of the present disclosure is not limited thereto.

[0100] In some examples, such as Figure 7 As shown, when the first hook portion 412A is a hook groove located below the first needle tip portion 411A, the outer diameter of the first protrusion 712 is larger than the size of the hook groove in the extending direction of the first elastic needle 410A, so that it can be stuck in the hook groove.

[0101] In some examples, such as Figure 7As shown, the second outer extension 720 of the suture 700 includes a second protrusion 722, the outer diameter of which is larger than the diameter of the second outer extension 720, so that it can be held in the second hook portion 412B, thereby fixing the second outer extension 720 and the second hook portion 412B. It should be noted that the above-mentioned second protrusion can be a knot formed by the suture itself, or a protrusion formed by other materials; this embodiment of the present disclosure is not limited thereto.

[0102] In some examples, such as Figure 7 As shown, when the second hook portion 412B is a hook groove located below the second needle tip portion 411B, the outer diameter of the second protrusion 722 is larger than the size of the hook groove in the extending direction of the second elastic needle 410B, so that it can be stuck in the hook groove.

[0103] In some examples, such as Figure 5 As shown, the suture device 800 also includes a positioning wing drive mechanism 220, which is at least partially located within the core tube assembly 100; the positioning wing drive mechanism 220 is configured to drive two positioning wings 310 to rotate about hinged positions on the working end 110, respectively.

[0104] Figure 8 This is a schematic diagram of the structure of another suture provided in one embodiment of the present disclosure; Figure 9 This is a partially enlarged schematic diagram of another suture provided in an embodiment of the present disclosure; Figure 10 This is a partially enlarged schematic diagram of another suture provided according to an embodiment of this disclosure. It should be noted that, in order to clearly illustrate the positioning wing drive mechanism, Figure 8 , Figure 9 and Figure 10 The core tube assembly is omitted.

[0105] In some examples, such as Figure 8 As shown, the positioning wing drive mechanism 420 includes a first positioning wing drive rod 220A and a second positioning wing drive rod 220B. The first positioning wing drive rod 220A is connected to the first positioning wing 210A and is configured to drive the first positioning wing 210A to rotate about its hinge position (i.e., the first hinge position mentioned above). The second positioning wing drive rod 220B is connected to the second positioning wing 210B and is configured to drive the second positioning wing 210B to rotate about its hinge position (i.e., the second hinge position mentioned above).

[0106] In some examples, such as Figure 8 As shown, the proximal end of the first positioning wing drive rod 220A and the proximal end of the second positioning wing drive rod 220B are detachably connected, thereby enabling the first positioning wing drive rod 220A and the second positioning wing drive rod 220B to move synchronously, thereby enabling the first positioning wing 210A and the second positioning wing 210B to move synchronously.

[0107] In some examples, such as Figure 9 and Figure 10 As shown, the first positioning wing drive rod 220A includes a first rack portion 224A, and the first positioning wing 210A includes a first gear portion (covered). The first rack portion 224A and the first gear portion mesh, so that when the first positioning wing drive rod 220A moves in the extending direction of the core tube assembly, the first positioning wing 210A can be driven to rotate about its hinged position. Similarly, the second positioning wing drive rod 220B includes a second rack portion 224B, and the second positioning wing 210B includes a second gear portion 214B. The second rack portion 224B and the second gear portion 214B mesh, so that when the second positioning wing drive rod 220B moves in the extending direction of the core tube assembly, the second positioning wing 210B can be driven to rotate about its hinged position. It should be noted that the first gear portion and the second gear portion described above can be full gears or incomplete gears, and this embodiment of the present disclosure is not limited thereto; in addition, the position and structure of the first gear portion can be referred to the second gear portion.

[0108] In some examples, such as Figure 9 and Figure 10 As shown, the positioning wing drive mechanism 220 includes a locking member 225 configured to lock the two positioning wings 210 in the open position, preventing the two positioning wings 210 from rotating. Therefore, during sewing, the positions of the two positioning wings are fixed, and the positions of the two thread compartments connected to the two positioning wings are also fixed, thus facilitating the suture needle to hook the thread and complete the sewing operation.

[0109] In some examples, such as Figure 9 and Figure 10 , Figure 12 As shown, the first positioning wing drive rod 220A also includes a first locking portion 225A. The proximal end of the first positioning wing 210A includes a first engaging portion 215A. The first locking portion 225A is configured to abut against the first engaging portion 215A to lock the first positioning wing 210A in the open position. Similarly, the second positioning wing drive rod 220B also includes a second locking portion 225B. The proximal end of the second positioning wing 210B includes a second engaging portion 215B. The second locking portion 225B is configured to abut against the second engaging portion 215B to lock the second positioning wing 210B in the open position. It should be noted that, due to partial obstruction, the position and structure of the first locking member on the first positioning wing drive rod can be seen from the position and structure of the second locking member on the second positioning wing drive rod.

[0110] For example, when the first locking part 225A abuts against the first latching part 215A, the abutting surface of the first locking part 225A and the abutting surface of the first latching part 215A form a surface-to-surface contact, thereby preventing the rotation of the first positioning wing 210A and locking the first positioning wing 210A in the open position.

[0111] Figure 11 This is a schematic diagram of the structure of a positioning wing in a stitcher according to an embodiment of the present disclosure; Figure 12 This is a schematic diagram of the positioning wing in another stitcher provided in an embodiment of the present disclosure.

[0112] In some examples, such as Figure 11 and Figure 12 As shown, the distal end of each positioning wing 210 includes an outer wall 211 and a limiting plate 212; the outer wall 211 includes a fixing groove 213 that penetrates the outer wall 211; the limiting plate 212 is connected to the edge of the outer wall 211 and forms a receiving groove 214 with the outer wall 211.

[0113] See you again Figure 2 and Figure 12 The receiving groove 214 is configured to receive the end of the cable compartment 300. The fixing part 310 of the cable compartment 300 includes an elastic hook 313, which is configured to cooperate with the fixing groove 213 to detachably connect the cable compartment 300 and the positioning wing 210. Thus, the receiving groove 214 can constrain the end of the cable compartment 300, and then the cable compartment 300 and the positioning wing 210 are fixed by the cooperation of the elastic hook 313 and the fixing groove 213. Because the elastic hook 313 is elastic, the cable compartment 300 can be quickly removed from the fixing wing 210 by the deformation of the elastic hook 313.

[0114] In some examples, such as Figure 2 , Figure 11 and Figure 12 As shown, the fixing groove 213 includes a fixing hook 2130 and a quick-release part 2132. The fixing hook 2130 is configured to cooperate with the elastic hook 313 to prevent the wire compartment 300 from disengaging from the positioning wing 210. The quick-release part 2132 is configured to accommodate the elastic hook 313 when the elastic hook 313 undergoes elastic deformation, so that the elastic hook 313 and the fixing hook 2130 disengage, no longer preventing the wire compartment 300 from disengaging from the positioning wing 210, thereby enabling quick release.

[0115] In some examples, such as Figure 2 , Figure 11 and Figure 12As shown, the distal end of the first positioning wing 210A includes a first curved wall 211A and a first limiting plate 212A; the first curved wall 211A includes a first fixing groove 213A penetrating the first curved wall 211A; the first limiting plate 212A is connected to the edge of the first curved wall 211A and extends inward to form a first receiving groove 214A with the first curved wall 211A. The first receiving groove 214A is configured to receive the end of the first wire compartment portion 300A, and the first fixing portion 310A includes a first elastic hook portion 313A, which is configured to cooperate with the first fixing groove 213A to detachably connect the first wire compartment portion 300A and the first positioning wing 210A.

[0116] In some examples, such as Figure 2 , Figure 11 and Figure 12 As shown, the distal end of the second positioning wing 210B includes a second curved wall 211B and a second limiting plate 212B; the second curved wall 211B includes a second fixing groove 213B penetrating the second curved wall 211B; the second limiting plate 212B is connected to the edge of the second curved wall 211B and extends inward to form a second receiving groove 214B with the second curved wall 211B. The second receiving groove 214B is configured to receive the end of the second wire compartment 300B, and the second fixing part 310B includes a second elastic hook 313B, configured to cooperate with the second fixing groove 213B to detachably connect the second wire compartment 300B and the second positioning wing 210B.

[0117] See you again Figure 1 The suture device 800 also includes an operating mechanism 500 connected to the operating end 120 of the core tube assembly 100. The operating mechanism 500 has a first stroke and a second stroke. The first stroke of the operating mechanism 500 is configured to drive the two positioning wings 210 from the closed position to the open position. The second stroke of the operating mechanism 500 is configured to drive the elastic needle 410 to extend from the elastic needle outlet 112, causing the hook portion 412 of the elastic needle 410 to hook the outer extension of the suture section 320. Thus, by driving the positioning wing drive mechanism and the elastic needle drive mechanism through the two strokes of the operating mechanism, the movement of the elastic needle can be avoided when the positioning wings are not in the open state, thereby preventing user misoperation and improving the safety of suturing.

[0118] In some examples, such as Figure 1 As shown, the operating mechanism 500 may include a push rod 510 and a grip 520. The push rod 510 extends into the operating end 120 of the core tube assembly 100 to drive the aforementioned positioning wing drive mechanism 220 and elastic needle drive mechanism 420. The grip 520 can be held by a user to push the push rod 510 to move.

[0119] In some examples, such as Figure 1 As shown, the suture device 800 also includes a safety lock mechanism 600, which is connected to the operating mechanism 500. The safety lock mechanism 600 has a first state and a second state. In the first state, the safety lock mechanism 600 is fixed to the operating mechanism 500 and prevents the operating mechanism 500 from moving toward the working end 110 of the core tube assembly 100; at this time, the first state is a locked state. In the second state, the safety lock mechanism 600 allows the operating mechanism 500 to move toward the working end 110 of the core tube assembly 100, thereby enabling the aforementioned first and second strokes. Thus, the safety lock mechanism can prevent user misoperation, thereby improving the safety of the suture process.

[0120] For example, in the initial state, the safety lock mechanism can be in the first state, at which time the user cannot drive the positioning wing to unfold through the operating mechanism, thus ensuring that the positioning wing remains closed during the insertion of the suture into the cavity and avoiding damage; after the suture is in place, the user needs to manually move the safety lock mechanism to the second state, at which time the user can drive the positioning wing to unfold through the operating mechanism (i.e., the first stroke mentioned above), so that the positioning wing is in the open state; after the positioning wing is in the open state, the safety lock mechanism can automatically jump back to the first state to prevent user misoperation, and the user needs to manually move it to the second state, so that the user can drive the elastic needle to extend through the operating mechanism (i.e., the second state mentioned above).

[0121] On the other hand, embodiments of this disclosure also provide another suture device, comprising: a core tube assembly including a working end and an operating end; a first positioning wing hinged to a first hinged position of the working end of the core tube assembly; a first positioning wing drive rod connected to the first positioning wing and configured to drive the first positioning wing to rotate about the first hinged position; a second positioning wing hinged to a second hinged position of the working end of the core tube assembly; a second positioning wing drive rod connected to the second positioning wing and configured to drive the second positioning wing to rotate about the second hinged position; and a first elastic needle, at least partially located within the core tube assembly, and including a first... The device comprises a needle tip and a second elastic needle, at least partially located within the core tube assembly and including the second needle tip. The working end includes a first elastic needle outlet and a second elastic needle outlet. The first elastic needle outlet is located at a first hinge position near the operating end, and the second elastic needle outlet is located at a second hinge position near the operating end. The suture device also includes a guide assembly that contacts the first and second elastic needles respectively, guiding the first needle tip to the first elastic needle outlet and the second needle tip to the second elastic needle outlet. The guide assembly is located between the first and second positioning wing drive rods. Thus, the suture device integrates the suture needles within the core tube assembly, improving integration and reducing the user's operational difficulty. Furthermore, by placing the guide assembly between the first and second positioning wing drive rods, the suture device can cleverly utilize the space within the core tube assembly, further improving its integration. On the other hand, the suture device can also maximize the utilization of the inner diameter of the core tube assembly, increasing the angle between the first and second elastic needles after needle exit, thereby increasing the thickness and width of the tissue to be sutured by the first and second elastic needles, thus improving the final suture strength.

[0122] Figure 13 This is a schematic diagram of the structure of another suture provided in one embodiment of the present disclosure; Figure 14 This is a cross-sectional schematic diagram of a suture provided in one embodiment of the present disclosure.

[0123] like Figure 13 and Figure 14As shown, the suture device 800 includes a core tube assembly 100, a first positioning wing 210A, a first positioning wing drive rod (covered), a second positioning wing 210B, a second positioning wing drive rod 220B, a first elastic needle 410A, and a second elastic needle 410B. The core tube assembly 100 includes a working end 110 and an operating end 120; the working end 110 can extend into the cavity, and the operating end 120 can be operated by the user or used to set an operating mechanism; the working end 110 is the distal end of the core tube assembly 100, and the operating end 120 is the proximal end of the core tube assembly 100. The first positioning wing 210A is hinged to the first hinge position 1131 of the working end 110 of the core tube assembly 100; the first positioning wing drive rod is connected to the first positioning wing 210A and configured to drive the first positioning wing 210A to rotate around the first hinge position 1131; the second positioning wing 210B is hinged to the second hinge position 1132 of the working end 110 of the core tube assembly 100; the second positioning wing drive rod 220B is connected to the second positioning wing 210B and configured to drive the second positioning wing 210B to rotate around the second hinge position 1132. Rotation; the first elastic needle 410A is at least partially located within the core tube assembly 100 and includes a first needle tip 411A; the second elastic needle 410B is at least partially located within the core tube assembly 100 and includes a second needle tip 411B; the working end 110 includes a first elastic needle outlet 112A and a second elastic needle outlet 112B, the first elastic needle outlet 112A is located at the first hinge position 1131 on the side near the operating end 120, and the second elastic needle outlet 112B is located at the second hinge position 1132 on the side near the operating end 120.

[0124] like Figure 13 and Figure 14 As shown, the suture device 800 also includes a guide assembly 840, which contacts the first elastic needle 410A and the second elastic needle 410B respectively, and guides the first needle tip 411A to the first elastic needle outlet 112A and the second needle tip 411B to the second elastic needle outlet 112B. The guide assembly 840 is located between the first positioning wing drive rod 220A and the second positioning wing drive rod 220B.

[0125] In the suture device provided in this embodiment, by providing the aforementioned guide assembly, first elastic needle, and second elastic needle, the suture device allows the first and second elastic needles to be positioned within the core tube assembly during entry into the cavity through the opening. When suturing operations are required using the first and second elastic needles, the guide assembly guides them to their respective outlets. Therefore, this suture device integrates the suture needles within the core tube assembly, improving integration and reducing the user's operational difficulty. Furthermore, by placing the guide assembly between the first and second positioning wing drive rods, the suture device can cleverly utilize the space within the core tube assembly, further enhancing its integration.

[0126] On the other hand, by placing the guide assembly between the first and second positioning wing drive rods, the first and second elastic needles are closer to the center of the core tube assembly. This maximizes the utilization of the inner diameter of the core tube assembly, increasing the angle between the first and second elastic needles after needle exit. This, in turn, increases the thickness and width of the tissue to be sutured by the first and second elastic needles, thereby improving the final suture strength. It should be noted that the cross-sectional shape of the core tube assembly is typically circular, resulting in a larger dimension passing through its center. With a fixed elasticity coefficient of the elastic needle, the larger the radial dimension of the bent portion of the elastic needle within the core tube assembly, the larger the angle between the first and second elastic needles after needle exit. Furthermore, placing the guide assembly at the center of the core tube assembly allows for a larger guide assembly, enabling a greater degree of bending of the first and second elastic needles.

[0127] In some examples, such as Figure 13 and Figure 14 As shown, the guide assembly 840 overlaps with the central axis of the core tube assembly 100. Therefore, the suture device can also be equipped with a larger guide assembly, allowing for greater curvature of the first and second elastic needles, thereby increasing the angle between the first and second elastic needles after needle exit, and thus increasing the thickness and width of the tissue to be sutured by the first and second elastic needles. It should be noted that the angle between the first and second elastic needles after needle exit is the angle between the extension direction of the portion of the first elastic needle outside its exit point and the extension direction of the portion of the second elastic needle outside its exit point.

[0128] Figure 15 This is a schematic diagram of another suture device provided according to an embodiment of the present disclosure. For clarity, Figure 15 The core tube assembly is omitted. For example... Figure 14 and Figure 15As shown, the suture device 800 also includes a flexible needle drive mechanism 420 located within the core tube assembly 100; a first flexible needle 410A includes a first drive portion 415A, and a second flexible needle 410B includes a second drive portion 415B; the flexible needle drive mechanism 420 is connected to the first drive portion 415A and the second drive portion 415B, and is configured to drive the first needle tip 411A to extend from the first flexible needle outlet 112A, and drive the second needle tip 411B to extend from the second flexible needle outlet 112B. The first drive portion 415A is located on the side of the central axis of the core tube assembly 100 near the second flexible needle outlet 112B, and the second drive portion 415B is located on the side of the central axis of the core tube assembly 100 near the first flexible needle outlet 112A, such that the first flexible needle 410A and the second flexible needle 410B intersect at the guide assembly 840. Therefore, the suture device allows the curved portion of the first and second elastic needles within the core tube assembly to have a larger dimension in the radial direction of the core tube assembly, thereby allowing a larger angle between the first and second elastic needles after needle exit.

[0129] For example, such as Figure 14 and Figure 15 As shown, the first driving part 415A described above may be the tail of the first elastic needle 410A, and the second driving part 415B described above may be the tail of the second elastic needle 410. Of course, the embodiments of this disclosure include, but are not limited to, the first driving part and the second driving part described above may also be other parts of the first elastic needle and the second elastic needle, such as the parts of the first elastic needle and the second elastic needle that contact the elastic needle driving mechanism.

[0130] In some examples, such as Figure 14 and Figure 15 As shown, the elastic needle drive mechanism 420 includes an elastic needle drive rod 425 and a needle holder 422 sleeved on the elastic needle drive rod 425. The elastic needle drive rod 425 includes a first drive protrusion 4251 and a second drive protrusion 4252. The first drive protrusion 4251 is located on the side of the needle holder 422 near the operating end 120 of the core tube assembly 100, and the second drive protrusion 4252 is located on the side of the needle holder 422 near the working end 110 of the core tube assembly 100. The first drive protrusion 4251 and the second drive protrusion 4252 are configured to drive the needle holder 422 to move. The first drive portion 415A of the first elastic needle 410A and the second drive portion 415B of the second elastic needle 410B are fixed on the needle holder 422. Thus, the elastic drive rod 425 can drive the first elastic needle and the second elastic needle to move by driving the needle holder 422 to move.

[0131] In some examples, such as Figure 14 and Figure 15As shown, the maximum included angle between the first line connecting the first needle tip 411A of the first elastic needle 410A and the first elastic needle outlet 112A, and the second line connecting the second needle tip 411B of the second elastic needle 410B and the second elastic needle outlet 112B, is greater than 70 degrees. Therefore, this suture device can increase the thickness and width of the tissue to be sutured by the first and second elastic needles, thereby improving the suture strength.

[0132] For example, such as Figure 14 and Figure 15 As shown, the maximum included angle between the first line connecting the first needle tip 411A of the first elastic needle 410A and the first elastic needle outlet 112A, and the second line connecting the second needle tip 411B of the second elastic needle 410B and the second elastic needle outlet 112B is greater than 70 degrees, for example, 71 degrees, 72 degrees, or 74 degrees.

[0133] In some examples, such as Figure 14 and Figure 15 As shown, the aforementioned suture device 800 also includes a clutch mechanism 820, and the aforementioned elastic needle drive mechanism 420 includes a first stroke and a second stroke. During the first stroke of the elastic needle drive mechanism 420, the clutch mechanism 820 connects the elastic needle drive mechanism 420 to the first positioning wing drive rod 220A and the second positioning wing drive rod 220B. During the second stroke of the elastic needle drive mechanism 420, the clutch mechanism 820 disengages the elastic needle drive mechanism 420 from the first positioning wing drive rod 220A and the second positioning wing drive rod 220B. Therefore, the user can drive the opening of the first and second positioning wings and the elastic needle drive mechanism through the first stroke of the elastic needle drive mechanism, and drive the extension of the first and second elastic needles through the second stroke of the elastic needle drive mechanism. This avoids driving the elastic needles when the positioning wings are not in the open state, thereby preventing user misoperation and improving the safety of suturing.

[0134] In some examples, such as Figure 14 and Figure 15 As shown, the proximal end of the first positioning wing drive rod 220A and the proximal end of the second positioning wing drive rod 220B are detachably connected, thereby enabling the first positioning wing drive rod 220A and the second positioning wing drive rod 220B to move synchronously, thereby enabling the first positioning wing 210A and the second positioning wing 210B to move synchronously.

[0135] In some examples, such as Figure 14 and Figure 15As shown, when the proximal ends of the first positioning wing drive rod 220A and the second positioning wing drive rod 220B are detachably connected, the clutch mechanism 820 can be configured only between one of the first positioning wing drive rod 220A and the second positioning wing drive rod 220B and the elastic needle drive mechanism 420. Therefore, when the clutch mechanism 820 connects one of the first positioning wing drive rod 220A and the second positioning wing drive rod 220B to the elastic needle drive mechanism 420, the other of the first positioning wing drive rod 220A and the second positioning wing drive rod 220B will also be driven synchronously; when the clutch mechanism 820 disengages one of the first positioning wing drive rod 220A and the second positioning wing drive rod 220B from the elastic needle drive mechanism 420, the other of the first positioning wing drive rod 220A and the second positioning wing drive rod 220B will also disengage synchronously.

[0136] Figure 16 This is a partially enlarged schematic diagram of another suture provided in an embodiment of the present disclosure; Figure 17A This is a schematic diagram of the structure of a guide member in a suture device according to an embodiment of the present disclosure; Figure 17B This is a schematic diagram illustrating the cooperation relationship between an elastic needle and a guide member in a suture device according to an embodiment of this disclosure. It should be noted that... Figure 17A The guide shown can be either a first guide or a second guide.

[0137] In some examples, such as Figure 16 and Figure 17A As shown, the guide assembly 840 includes a first guide 840A and a second guide 840B; the first guide 840A includes a first guide portion 841A and a first abutment portion 842A, the first abutment portion 842A being located on the side of the first guide portion 841A near the central axis of the core tube assembly 100; the second guide 840B includes a second guide portion 841B and a second abutment portion 842B, the first abutment portion 842B being located on the side of the first guide portion 841B near the central axis of the core tube assembly 100; the first guide portion 841A is configured to bend and guide a first elastic needle 410A, the second guide portion 841B is configured to bend and guide a second elastic needle 410B, the first abutment portion 842A is configured to abut against the side wall of the core tube assembly, and the second abutment portion 842B is configured to abut against the side wall of the core tube assembly.

[0138] In some examples, such as Figure 16 and Figure 17AAs shown, the thickness of the first abutment portion 841A is less than the thickness of the first guide portion 842A, and the thickness of the second abutment portion 841B is less than the thickness of the second guide portion 842B. The first positioning wing drive rod 220A is located on the side of the first abutment portion 842A away from the second guide member 840B, and the second positioning wing drive rod 220B is located on the side of the second abutment portion 842B away from the first guide member 840A. Therefore, by reducing the thickness of the first and second abutment portions, space is provided for the first and second positioning wing drive rods, thereby further improving the compactness of the stitcher and reducing its size.

[0139] In some examples, such as Figure 17B As shown, the first guide portion 841A of the first guide member 840A is used to guide and bend the first elastic needle 410A. The first abutting portion 841A abuts against the inner wall of the core cylinder assembly 100, thereby being stably disposed within the core cylinder assembly 100, and thus stably guiding and bending the first elastic needle 410A. It should be noted that the relationship between the second guide member, the second elastic needle, and the core cylinder assembly can also be found in [reference needed]. Figure 17B .

[0140] In some examples, the material of at least a portion of the outer surface of the guide assembly 840 that contacts the first elastic pin 410A and the second elastic pin 410B includes a friction-reducing material. This reduces friction between the guide assembly and the first and second elastic pins. Figure 18 This is a partially enlarged schematic diagram of another suture provided in an embodiment of the present disclosure; Figure 19 This is a partially enlarged schematic diagram of another suture provided in an embodiment of the present disclosure.

[0141] like Figure 18 and Figure 19 As shown, the movement trajectories of the first positioning wing 210A and the second positioning wing 210B include a closed position and an open position; as Figure 18 As shown, in the closed position, the distal ends of the first positioning wing 210A and the second positioning wing 210B are positioned opposite each other, and are located on the side of the working end 110 of the core tube assembly 100 away from the operating end 120, thus facilitating insertion into the cavity; at this time, the extension direction of the first positioning wing 210A and the extension direction of the second positioning wing 210B are approximately parallel; as Figure 19 As shown, in the open position, the distal ends of the first positioning wing 210A and the second positioning wing 210B are located on both sides of the core tube assembly 100 and are configured to contact the tissue to be sutured.

[0142] In some examples, such as Figure 19As shown, in the open position, the angle between the extension direction of the first positioning wing 210A and the extension direction of the second positioning wing 210B is greater than or equal to 180 degrees. It should be noted that the extension direction of the positioning wing mentioned above refers to the direction from the proximal end to the distal end of the positioning wing.

[0143] In some examples, such as Figure 18 and Figure 19 As shown, the first positioning wing drive rod 220A includes a first rack portion 224A and a first locking portion 225A, and the first positioning wing 210A includes a first gear portion (covered) and a first engaging portion 215A. The first rack portion 224A and the first gear portion mesh, so that when the first positioning wing drive rod 220A moves in the extending direction of the core tube assembly, the first positioning wing 210A can be driven to rotate about its hinged position; the first locking portion 225A is configured to abut against the first engaging portion 215A to lock the first positioning wing 210A in the open position.

[0144] In some examples, such as Figure 18 and Figure 19 As shown, the second positioning wing drive rod 220B includes a second rack portion 224B and a second locking portion 225B, and the second positioning wing 210B includes a second gear portion 214B and a second engaging portion 215B. The second rack portion 224B and the second gear portion 214B mesh, so that when the second positioning wing drive rod 220B moves in the extending direction of the core tube assembly, it can drive the second positioning wing 210B to rotate about its hinged position. The proximal end of the second positioning wing 210B includes the second engaging portion 215B, and the second locking portion 225B is configured to abut against the second engaging portion 215B to lock the second positioning wing 210B in the open position. It should be noted that the first gear portion and the second gear portion described above can be full gears or incomplete gears, and this embodiment of the present disclosure is not limited thereto.

[0145] For example, such as Figure 19 As shown, when the second locking part 225B abuts against the second latching part 215B, the abutting surface of the second locking part 225B and the abutting surface of the second latching part 215B form a surface-to-surface abutment, thereby preventing the rotation of the second positioning wing 210B and locking the second positioning wing 210B in the open position.

[0146] Figure 20 This is a schematic diagram of another suture device in the closed state of the online compartment, according to an embodiment of this disclosure; Figure 21 A partially enlarged schematic diagram of another suture device in the open state of the online compartment, provided as an embodiment of this disclosure; Figure 22 This is a partially enlarged schematic diagram of another suture device provided in an embodiment of the present disclosure with the positioning wings in the open state.

[0147] like Figure 20 and Figure 21 As shown, based on the other embodiments described above, the suture device 800 further includes a first suture compartment 300A and a second suture compartment 300B; the first suture compartment 300A includes a first fixing part 310A and a first suture routing part 320A, and the second suture compartment 300B includes a second fixing part 310B and a second suture routing part 320B; the two positioning wings 210 include a first positioning wing 210A and a second positioning wing 210B; the first suture compartment 300A is detachably connected to the distal end of the first positioning wing 210A via the first fixing part 310A, and the second suture compartment 300B is detachably connected to the distal end of the second positioning wing 210B via the second fixing part 310B. For example, the distal ends of the first fixing part 310A and the first positioning wing 210A, and the distal ends of the second fixing part 310B and the second positioning wing 210B can be detachably connected by a snap-fit ​​method.

[0148] like Figure 21 and Figure 22 As shown, at least one of the first thread storage section 300A and the second thread storage section 300B includes a thread storage section 330, which is configured to store the suture 700. The first thread routing section 320A is configured to guide and limit the first outer extension 710 of the suture 700, and the second thread routing section 320B is configured to guide and limit the second outer extension 720 of the suture 700.

[0149] When suturing using the suture device provided in this embodiment, the first and second positioning wings can be first set to the closed state. At this time, the first and second suture compartments are also closed, which allows the distal end of the suture device to have a smaller size, so that it can be inserted into the cavity through the opening. Then, the distal ends of the first and second positioning wings are driven away from each other, so that the first and second positioning wings are in the open or unfolded state, so that the first and second positioning wings, the first and second suture compartments, and the second suture compartment can work together to position the tissue to be sutured. Finally, since the suture storage section stores sutures, and the first... A first thread guide section guides and limits the first outer extension of the suture, and a second thread guide section guides and limits the second outer extension of the suture. When the two positioning wings and the two suture compartments are in the open state, the first and second elastic needles can pass through the tissue to be sutured and hook the first and second outer extensions from the first and second suture compartments respectively. Then, the first and second outer extensions are brought out by the retraction of the first and second elastic needles, so that the first and second outer extensions pass through the tissue to be sutured, and the middle section of the suture is located inside the opening. When the suture is tightened, the opening is closed. It should be noted that the above suturing process is a schematic description of a suturing process based on the suture device provided in the embodiments of this disclosure. The embodiments of this disclosure include, but are not limited to, this. Based on the structure of this suture device, other suitable suturing processes can also be used to achieve suturing.

[0150] In the suture device provided in this embodiment, the suture can store suture in the suture storage section, guide and limit the first outer extension of the suture using the first suture guide section, and guide and limit the second outer extension of the suture using the second suture guide section. Furthermore, the first suture chamber is detachably connected to the first positioning wing, and the second suture chamber is detachably connected to the second positioning wing. Therefore, this suture device can quickly change sutures by replacing the first and second suture chambers, eliminating the need to store and change sutures in the core tube assembly, thereby greatly improving suture efficiency and reducing the user's operational difficulty. For example, after completing a suture operation, the suture can be changed by removing the first and second suture chambers and replacing them with a new suture chamber, allowing for the next suture operation.

[0151] On the other hand, the first suture compartment and the second suture compartment are detachably connected to the distal ends of the first and second positioning wings respectively via the first fixing part and the second fixing part, and are configured to move with the movement of the two positioning wings. Therefore, the first suture compartment can serve as an extension of the first positioning wing, and the second suture compartment can serve as an extension of the second positioning wing, thereby improving the positioning effect of the first and second positioning wings (or, the size of the positioning wings can be reduced without changing the overall size of the positioning wings and the suture compartment). In addition, when the first and second positioning wings are in the open position, with the first suture compartment located at the distal end of the first positioning wing and the second suture compartment located at the distal end of the second positioning wing, the first and second suture compartments are in contact with the tissue to be sutured and are located on both sides of the core tube assembly, which facilitates the hooking of the first and second elastic needles for suturing. Therefore, this suturer can also improve the accuracy of hooking, thereby improving the success rate of suturing.

[0152] In some examples, such as Figure 20 , Figure 21 and Figure 22 As shown, the first suture compartment 300A includes a first mating surface 341 and a first contact surface 351, and the second suture compartment 300B includes a second mating surface 342 and a second contact surface 352. When the two positioning wings 210 are in the closed position, the first mating surface 341 and the second mating surface 342 are arranged opposite to each other and are located on the side of the working end 110 of the core tube assembly 100 away from the operating end 120. When the two positioning wings 210 are in the open position, the first contact surface 351 is configured to contact the tissue to be sutured together with the corresponding positioning wing 210, and the second contact surface 352 is configured to contact the tissue to be sutured together with the corresponding positioning wing 210.

[0153] Figure 23 This is a schematic diagram of the structure of a positioning wing in another stitcher provided in an embodiment of the present disclosure; Figure 24This is a schematic diagram of the positioning wing in another stitcher provided in an embodiment of the present disclosure.

[0154] like Figure 23 and Figure 24 As shown, the distal end of the first positioning wing 210A includes a first outer side wall 211A and a first limiting plate 212A; the first outer side wall 211A includes a first fixing groove 213A penetrating the first curved wall 211A; the first limiting plate 212A is connected to the edge of the first outer side wall 211A and extends inward to form a first receiving groove 214A with the first outer side wall 211A. The first receiving groove 214A is configured to receive the end of the first thread compartment 300A, and the first fixing part 310A includes a first elastic hook part 313A, which is configured to cooperate with the first fixing groove 213A to detachably connect the first thread compartment 300A and the first positioning wing 210A.

[0155] In some examples, such as Figure 23 and Figure 24 As shown, the distal end of the second positioning wing 210B includes a second outer sidewall 211B and a second limiting plate 212B; the second outer sidewall 211B includes a second fixing groove 213B that penetrates the second outer sidewall 211B; the second limiting plate 212B is connected to the edge of the second outer sidewall 211B and extends inward to form a second receiving groove 214B with the second outer sidewall 211B. The second receiving groove 214B is configured to receive the end of the second wire compartment portion 300B, and the second fixing portion 310B includes a second elastic hook portion 313B, which is configured to cooperate with the second fixing groove 213B to detachably connect the second wire compartment portion 300B and the second positioning wing 210B.

[0156] The following points need to be explained:

[0157] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0158] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure may be combined with each other.

[0159] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

1. A suture device, comprising: Core tube assembly, including working end and operating end; Two positioning wings are respectively hinged to the working end of the core tube assembly; The two production lines are independent of each other. The two positioning wings are configured to rotate about the hinge position on the working end, so that the distal ends of the two positioning wings move closer to or further away from each other. Each of the thread compartments includes a fixing part, and at least one of the two thread compartments includes a thread storage part. The two thread compartments are detachably connected to the distal ends of the two positioning wings via the fixing part and are configured to move with the movement of the two positioning wings. The thread storage part is configured to store suture thread.

2. The suture device according to claim 1, wherein, The suture compartment also includes a suture routing section configured to guide and limit the extension of the suture.

3. The suture device according to claim 2, wherein, The movement trajectories of the two positioning wings include a closed position and an open position; in the closed position, the distal ends of the two positioning wings are positioned opposite each other and are located on the side of the working end of the core tube assembly away from the operating end; in the open position, the distal ends of the two positioning wings are located on both sides of the core tube assembly. The two thread compartments include a first thread compartment and a second thread compartment. The first thread compartment includes a first mating surface and a first contact surface, and the second thread compartment includes a second mating surface and a second contact surface. When the positioning wing is in the closed position, the first mating surface and the second mating surface are arranged opposite each other and are located on the side of the working end of the core tube assembly away from the operating end. When the positioning wing is in the open position, the first contact surface is configured to contact the tissue to be sutured together with the corresponding positioning wing, and the second contact surface is configured to contact the tissue to be sutured together with the corresponding positioning wing.

4. The suture device according to claim 3, further comprising: At least one elastic needle, each of the elastic needles being at least partially located within the core tube assembly, and including a needle tip and a hook portion; as well as The flexible needle drive mechanism is located within the core tube assembly. The working end of the core tube assembly includes an elastic needle outlet, and the elastic needle driving mechanism is configured to drive the needle tip and the hook portion of the elastic needle to extend from the elastic needle outlet. When the positioning wing is in the open position, the elastic needle drive mechanism is configured to drive the hook portion of the elastic needle to hook the outer extension of the thread portion.

5. The suture device according to claim 4, wherein, When the positioning wing is in the open position, the distance between the elastic needle outlet and the positioning wing in the extension direction of the core tube assembly ranges from 5 to 20 mm.

6. The suture device according to claim 4, wherein, The suture includes a first outer extension and a second outer extension. The thread routing section of the first suture compartment is configured to guide and position the first outer extension, and the thread routing section of the second suture compartment is configured to guide and position the second outer extension. The at least one elastic needle includes a first elastic needle and a second elastic needle arranged in a cross configuration. The hook portion of the first elastic needle is configured to hook the first outer extension segment of the thread routing portion of the first thread compartment, and the hook portion of the second elastic needle is configured to hook the second outer extension segment of the thread routing portion of the second thread compartment.

7. The suture device according to any one of claims 4-6, wherein, The wiring section includes: A hook channel runs through the cable compartment and includes a channel inlet and a channel outlet; A suture positioning structure is configured to limit the outer extension of the suture and such that the outer extension overlaps with the channel outlet.

8. The suture device according to claim 7, wherein, The channel entrance includes a guide section, which includes a guide ramp such that the cross-sectional area of ​​the guide section gradually decreases along the guide direction.

9. The suture device according to any one of claims 1-6, further comprising: The suture consists of a suture segment and two outer segments. The storage segment is located in the storage section, and the two extension segments are respectively located in the two routing sections of the two cable compartments.

10. The suture device according to claim 9, wherein, The extension includes a protrusion that is configured to be engaged with the hook portion of the elastic needle after the extension is hooked by the hook portion of the elastic needle.

11. The suture device according to any one of claims 3-6, further comprising: The positioning wing drive mechanism is at least partially located within the core tube assembly. The positioning wing drive mechanism is configured to drive the two positioning wings to rotate around the hinged position on the working end.

12. The suture device according to claim 11, wherein, The positioning wing drive mechanism includes a locking element configured to lock the two positioning wings in the open position.

13. The suture device according to any one of claims 1-6, wherein, The distal end of each of the aforementioned positioning wings includes: The outer wall, including the fixing groove; The fixing part of the cable compartment includes an elastic hook, which is configured to cooperate with the fixing groove to detachably connect the cable compartment and the positioning wing.

14. The suture device according to claim 13, wherein, The fixing groove includes a fixing hook and a quick-release part. The fixing hook is configured to cooperate with the elastic hook to prevent the wire compartment from disengaging from the positioning wing. The quick-release part is configured to accommodate the elastic hook when the elastic hook undergoes elastic deformation, so that the elastic hook and the fixing hook can disengage.

15. The suture device according to any one of claims 4-6, further comprising: An operating mechanism is connected to the operating end of the core tube assembly. The operating mechanism has a first stroke and a second stroke. The first stroke is configured to drive the two positioning wings from the closed position to the open position. The second stroke is configured to drive the elastic needle to extend from the elastic needle outlet and cause the hook portion of the elastic needle to hook the outer extension of the thread section.

16. The suture device according to claim 15, further comprising: Safety lock mechanism, The safety lock mechanism is connected to the operating mechanism. The safety lock mechanism includes a first state and a second state. In the first state, the safety lock mechanism is fixed to the operating mechanism and prevents the operating mechanism from moving toward the working end of the core tube assembly. In the second state, the safety lock mechanism allows the operating mechanism to move toward the working end of the core tube assembly.

17. The suture device according to any one of claims 1-6, wherein, The suture storage section includes a suture storage cavity, and the suture device further includes: A thread storage mechanism, located within the thread storage cavity, is configured to wind and store the suture thread.

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