Tissue stapler

Abstract

The application is suitable for the technical field of surgical instruments, and provides a tissue suturing device. The tissue suturing device is used for suturing an organ defect hole by traction of a suture, and comprises a suturing device, a bearing part and a conveying part. The suturing device is arranged on the bearing part, the bearing part is installed on the conveying part, and the conveying part is used for conveying the suturing device to the tissue around the organ defect hole. The suturing device comprises: a thread feeding assembly, which is rotatably arranged on the bearing part and has a first end of a suture connected to an output end of the thread feeding assembly; and a capturing assembly, which is arranged on the bearing part and comprises a capturing member for capturing the output end of the thread feeding assembly. The output end of the thread feeding assembly has an initial position which stays inside the bearing part, and a captured position in which the first end of the suture is led through the tissue around the organ defect hole and is captured by the capturing member. By using the tissue suturing device, the capturing member can accurately capture the suture.

Description

Technical Field

[0001] This application belongs to the field of surgical instrument technology, and more specifically, relates to a tissue suture device. Background Technology

[0002] With the rapid development of minimally invasive techniques, more and more sutures are being made involving deep tissues, especially those that are both deep and narrow, such as organ defects in the ventricular or atrial septum.

[0003] In existing technologies, a tissue suture device is typically used to suture organ defects within the ventricular or atrial septum. Specifically, the tissue suture device includes a suture feeder, a rod, and a capture device. The rod has a first channel and a second channel. The suture feeder is connected to the first end of the suture. The feeder moves within the first channel, while the capture device moves within the second channel, capturing the feeder. In practice, the physician inserts the feeder into the first channel and simultaneously inserts the capture device into the second channel. The feeder is then driven through the tissue surrounding the organ defect, and manipulated to be captured by the capture device. Once captured, the capture device is pulled outward from the second channel. During this process, the first end of the suture is pulled outward along with the capture device, thus completing the suturing of the organ defect.

[0004] Although the aforementioned tissue suture device can be used to suture organ defects, the suture feeder in the device is manually operated by the doctor to connect with the capture device. The connection process is full of uncertainties, and such operation cannot guarantee the accuracy and efficiency of the connection, which greatly increases the difficulty of the operation, greatly reduces the efficiency, and may even cause accidental damage to other tissues of the patient. Summary of the Invention

[0005] The purpose of this application is to provide a tissue suture device that solves the technical problem that the capture device in the prior art cannot accurately capture the suture.

[0006] To achieve the above objectives, according to one aspect of this application, a tissue suture device is provided for suturing organ defect holes with a suture. The tissue suture device includes a suturing apparatus, a support portion, and a delivery portion. The suturing apparatus is disposed on the support portion, and the support portion is mounted on the delivery portion. The delivery portion is used to deliver the suturing apparatus to the tissue surrounding the organ defect hole. The suturing apparatus includes: a suture feeding assembly, which is rotatably disposed on the support portion, and an output end of the suture feeding assembly is connected to a first end of a suture; and a trapping assembly, which is disposed on the support portion and includes a trapping member for trapping the output end of the suture feeding assembly. The output end of the suture feeding assembly has an initial position where it remains inside the support portion, and a trapped position where the first end of the suture passes through the tissue surrounding the organ defect hole and is trapped by the trapping member.

[0007] Optionally, the thread feeding assembly includes a thread feeding member and a first carrier member. The thread feeding member is detachably mounted on a first end of the first carrier member, and a second end of the first carrier member is rotatably disposed on a carrier portion. The first end of the suture thread is connected to the thread feeding member, and the thread feeding member forms the output end of the thread feeding assembly.

[0008] Optionally, the wire feeder includes a body part and a captured part. The first end of the suture is connected to the body part, and the captured part is located on the side of the body part away from the first carrier. The capturing part is provided with a plurality of expandable capturing holes. The capturing holes have an initial position and an expanded position for the captured part to pass through. When the wire feeder is in the captured position, the captured part is captured by the capturing holes, and the capturing holes are in the initial position.

[0009] Optionally, the output end of the first carrier is provided with a receiving groove, and the main body can be located in the receiving groove; the captured part includes a first connecting section, a bent section and a second connecting section connected in sequence. When the wire feeder is in the initial position, the main body is located in the receiving groove, the first connecting section is located in the receiving groove, the second connecting section is located outside the first carrier, and the bent section is placed on the output end of the first carrier; when the wire feeder is in the captured position, the main body is located on the side of the capturing member closer to the first carrier, the first connecting section and the second connecting section are respectively inserted into two adjacent capturing holes, and the bent section is located on the side of the capturing member away from the first carrier; or, the captured part can be placed on the output end of the first carrier, and the end face of the captured part away from the main body is formed with a tip; when the wire feeder is in the initial position, the main body is located in the receiving groove, and the captured part is placed on the output end of the first carrier; when the wire feeder is in the captured position, the main body is located on the side of the capturing member closer to the first carrier, and the captured part is located on the side of the capturing member away from the first carrier.

[0010] Optionally, the capture assembly further includes a second carrier member, the capture member being mounted on a first end of the second carrier member, and a second end of the second carrier member being rotatably disposed on the carrier portion; the second carrier member has an open position that opens toward the wire feeder in the captured position, and an avoidance position that remains inside the carrier portion.

[0011] Optionally, the suturing device further includes a first driving member, which is drivenly connected to the first carrier to drive the first carrier to rotate on the carrier portion; the capture assembly further includes a second driving member, which is drivenly connected to the second end of the second carrier to drive the second carrier to rotate on the carrier portion.

[0012] Optionally, the first carrier includes a carrier body and a connecting post. The wire feeding component is detachably mounted on the first end of the carrier body, and the connecting post is fixedly connected to the second end of the carrier body. The wire feeding assembly also includes a connecting shaft, the axis of which is perpendicular to the length direction of the carrier portion. The connecting shaft is fixedly mounted inside the carrier portion and passes through the connecting post. The connecting post is rotatably mounted on the connecting shaft. The wire feeding assembly also includes a limiting post, which is mounted on the connecting post. The axis of the limiting post is perpendicular to the axis of the connecting post. The first driving component is a driving wire, which is wound around the limiting post at least once. The two ends of the driving wire extend from opposite sides of the connecting post toward the conveying portion away from the carrier portion. Alternatively, the wire feeding assembly also includes a limiting post, which is mounted on the connecting post. On the connecting column, the axis of the limiting column is perpendicular to the axis of the connecting column. The first driving component is a driving wire, which is wound at least once on the connecting column and at least once on the limiting column. The two ends of the driving wire extend from opposite sides of the connecting column toward the conveying part away from the bearing part. Alternatively, the first driving component includes a first driving rod and a connecting bent rod. The connecting bent rod is disposed between the first driving rod and the connecting column. The first end of the connecting bent rod is rotatably disposed on the end of the first end of the first driving rod about a direction perpendicular to the length of the first driving rod. The second end of the connecting bent rod is fixedly connected to the connecting column. The first driving rod can slide along the length of the bearing part inside the bearing part to drive the connecting bent rod to rotate about a direction perpendicular to the length of the first driving rod.

[0013] Optionally, the bearing portion is provided with a rotation space for the first and second bearing members to rotate; the second driving member is a second driving rod, and a sliding groove communicating with the rotation space is provided on the outer wall of the bearing portion along the length direction of the bearing portion, and the second driving rod is slidably disposed in the sliding groove; the capture assembly also includes a connector, which passes through the second end of the second bearing member and enters the second driving rod, and is connected to the second bearing member and fixedly connected to the second driving rod; a first limiting through groove is provided on the second end of the second bearing member, and the end of the first limiting through groove away from the axis of the bearing portion is inclined away from the first end of the second bearing member. The capture assembly also includes a force-applying member, which passes through the first limiting groove and enters the bearing portion. The force-applying member is fixedly connected to the bearing portion and can be slidably disposed within the first limiting groove along the extension direction of the first limiting groove. Alternatively, a second limiting groove is provided on the outer wall of the bearing portion, with one end of the second limiting groove away from the axis of the bearing portion inclined toward the second end of the second bearing member. The capture assembly also includes a force-applying member, which passes through the second limiting groove and enters the second end of the second bearing member. The force-applying member is fixedly connected to the second bearing member and can be slidably disposed within the second limiting groove along the extension direction of the second limiting groove.

[0014] Optionally, the sewing device further includes a limiting pin, which is disposed on one side of the connecting shaft and fixedly connected inside the bearing part. The axial direction of the limiting pin is perpendicular to the length direction of the bearing part. When the thread feeder is in the initial position, the bearing body abuts against the limiting pin. And / or, a dividing ring is fixedly sleeved on the connecting post, the connecting post is divided into a first part and a second part by the dividing ring, the limiting post is installed on the first part, and the second bearing is provided with a connecting groove adapted to the second part. When the thread feeder is in the initial position and the second bearing is in the avoidance position, the second bearing and the first bearing are connected by the engagement of the second part with the connecting groove.

[0015] Optionally, the suturing device is provided in two sets, with the two sets of suturing devices arranged opposite each other on the support part with the axis of the support part as the center; and / or, the delivery part is a delivery tube, the support part is a support tube, the first end of the delivery tube is fixedly connected to the first end of the support tube, the first end of the delivery tube communicates with the first end of the support tube, and the suture thread is passed through the delivery tube; the tissue suture device also includes: a TIP head, the TIP head is fixedly connected to the second end of the support tube, the length direction of the TIP head is parallel to the length direction of the support tube, and the diameter of the TIP head gradually decreases from near to far from the second end of the support tube; a protective sleeve, the protective sleeve is sleeved on the support tube and the critical point between the support tube and the delivery tube, and is fixedly connected to the support tube and the critical point between the support tube and the delivery tube.

[0016] The beneficial effects of the tissue suture device provided in this application are as follows: Compared with the prior art, when suturing organ defects in the interventricular or atrial septum, the first end of the suture is first connected to the output end of the suture delivery assembly. Then, the delivery unit transports the carrier and suturing device to the tissue surrounding the organ defect. At this time, the output end of the suture delivery assembly and the trapping element are located on opposite sides of the tissue surrounding the organ defect. The suture delivery assembly is then driven to rotate clockwise, thereby switching the output end of the suture delivery assembly from its initial position to its trapped position. During this process, the output end of the suture delivery assembly will drive the first end of the suture through the tissue surrounding the organ defect. When the output end of the suture delivery assembly switches to the trapped position, the trapping element will capture the output end of the suture delivery assembly. Next, the delivery unit withdraws the carrier, suturing device, and the first end of the suture from the tissue surrounding the organ defect, so that the first and second ends of the suture can simultaneously be outside the organ defect, thus completing the puncture suturing operation. Finally, other corresponding surgical operations are performed using other surgical instruments, all of which are common knowledge to those skilled in the art and will not be described in detail here. By employing the tissue suture device of this application, the capturing element can accurately capture the suture feeder and the suture connected to the suture feeder. This design greatly reduces the difficulty of the operation and improves the efficiency and accuracy of the operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a tissue suture device at one angle, provided as an embodiment of this application.

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 An exploded view of the connection between the sewing device and the supporting part at an angle, provided for an embodiment of this application;

[0021] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0022] Figure 5 for Figure 3 Enlarged view of point C in the middle;

[0023] Figure 6 A partial cross-sectional view of the connection between the wire feeder and the first carrier in one embodiment of this application is provided for reference.

[0024] Figure 7 A schematic diagram showing the connection between the wire feeder and the capture member in one embodiment of this application is provided for reference.

[0025] Figure 8 A schematic diagram showing the wire feeder in a captured position in one embodiment of this application, provided for the purpose of this application embodiment;

[0026] Figure 9 A partial cross-sectional view of the connection between the wire feeder and the first carrier in another embodiment provided for this application;

[0027] Figure 10 A schematic diagram showing the connection between the wire feeder and the capture member in another embodiment of this application is provided for reference.

[0028] Figure 11 A schematic diagram showing the wire feeder in a captured position in another embodiment of this application;

[0029] Figure 12 This is a schematic diagram of the structure of the tissue suture device from another angle, provided as an embodiment of this application.

[0030] Figure 13 for Figure 12 Enlarged view of point D in the middle;

[0031] Figure 14 An exploded view of the connection between the first bearing member and the connecting shaft and the limiting post provided in the embodiments of this application;

[0032] Figure 15 A schematic diagram illustrating the connection between the first driving member and the first bearing member in another embodiment of this application is provided for reference.

[0033] Figure 16 An exploded view of the connection between the sewing device and the support portion from another angle, provided for an embodiment of this application;

[0034] Figure 17 An exploded view showing the connection between the sewing device and the support portion in another embodiment of this application;

[0035] Figure 18 A schematic diagram showing the second carrier and the suture feeder in a set of suturing devices provided in this application, respectively located on opposite sides of the tissue surrounding the organ defect hole;

[0036] Figure 19 A schematic diagram showing the thread feeder in the captured position and the second carrier in the open position in a set of sewing devices provided in an embodiment of this application;

[0037] Figure 20 A schematic diagram showing the second carrier and the suture feeder in another set of suturing devices provided in this application embodiment, respectively located on opposite sides of the tissue surrounding the organ defect hole;

[0038] Figure 21 A schematic diagram showing the thread feeder in the captured position and the second carrier in the open position in another set of sewing devices provided in the embodiments of this application;

[0039] Figure 22 A schematic diagram of the structure after the two sutures provided in this application have been used for puncture and suturing;

[0040] Figure 23 This is a schematic diagram of the structure for completing the closure of the organ defect hole provided in the embodiment of this application.

[0041] The details of the reference numerals used in the above figures are as follows:

[0042] 100. Cable feeding assembly; 110. Cable feeding component; 111. Main body; 112. Captured part; 1121. First connecting section; 1122. Bending section; 1123. Second connecting section; 120. First carrier; 121. Carrier body; 122. Connecting post; 123. Dividing ring; 130. Connecting shaft; 131. Limiting ring; 140. Limiting post; 200. Capture assembly; 210. Capture component; 211. Capture frame; 212. First capture bar; 213. Second capture bar; 214. Capture 220. Second bearing member; 221. First limiting through groove; 222. Connecting groove; 230. Second driving member; 240. Connecting member; 300. First driving member; 310. Driving line; 320. First driving rod; 330. Connecting bent rod; 400. Bearing part; 410. Rotation space; 420. Sliding groove; 430. Second limiting through groove; 500. Conveying part; 600. Limiting pin; 700. TIP head; 800. Protective sleeve; 900. Suture; 1000. Organ defect hole. Detailed Implementation

[0043] To make the technical problems, technical solutions, and beneficial effects to be solved by this application 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 are not intended to limit the scope of this application.

[0044] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly or indirectly on that other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to that other element. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] Reference Figure 1 and Figure 2 To address the aforementioned problems, according to one aspect of this application, an embodiment provides a tissue suture device for suturing an organ defect hole 1000 using a suture 900. The tissue suture device includes a suturing apparatus, a support portion 400, and a delivery portion 500. The suturing apparatus is disposed on the support portion 400, which is mounted on the delivery portion 500. The delivery portion 500 is used to deliver the suturing apparatus to the tissue surrounding the organ defect hole 1000. The suturing apparatus includes a suture feeding assembly 100 and a trapping assembly 200. The suture feeding assembly 100 is rotatably disposed on the support portion 400, and its output end is connected to a first end of the suture 900. The trapping assembly 200 is disposed on the support portion 400 and includes a trapping member 210 for trapping the output end of the suture feeding assembly 100. The output end of the suture delivery assembly 100 has an initial position where it remains inside the support portion 400, and a captured position where the first end of the suture 900 passes through the tissue surrounding the organ defect hole 1000 and is captured by the capture member 210.

[0048] Reference Figures 18 to 23 In this embodiment, the tissue suture device is mainly used to suture organ defects 1000 within the interventricular septum or atrial septum. In other embodiments, the tissue suture device can also be used to suture other sites. The support portion 400 is a support tube, with its length direction aligned with its axis. The support tube is made of metal. The suture 900 is made of a biocompatible polymer material, such as PP, PA, and PET. In other embodiments, absorbable or biodegradable polymer materials can also be used. The second end of the suture 900 remains outside the tissue suture device.

[0049] In specific applications, when suturing the organ defect hole 1000 in the interventricular septum or atrial septum, firstly, the first end of the suture 900 is connected to the output end of the suture feeding assembly 100. Secondly, the carrier 400 and the suturing device are transported to the tissue around the organ defect hole 1000 by the conveying unit 500. At this time, the output end of the suture feeding assembly 100 and the trapping member 210 are located on opposite sides of the tissue around the organ defect hole 1000. Then, the suture feeding assembly 100 is driven to rotate clockwise, thereby switching the output end of the suture feeding assembly 100 from the initial position to the trapped position. During this process, the output end of the suture feeding assembly 100 will drive the first end of the suture 900 through the tissue around the organ defect hole 1000. When the output end of the suture feeding assembly 100 is switched to the trapped position, the trapping member 210 will trap the output end of the suture feeding assembly 100. In other embodiments, the output end of the suture feeding assembly 100 can also be switched from the initial position to the trapped position by driving the suture feeding assembly 100 to rotate counterclockwise. Next, the transport unit 500 withdraws the carrier unit 400, the suturing device, and the first end of the suture 900 from the tissue surrounding the organ defect hole 1000, so that the first and second ends of the suture 900 are simultaneously outside the organ defect hole 1000, thereby completing the puncture and suturing operation. Finally, other corresponding surgical operations are performed using other surgical instruments, all of which are common knowledge to those skilled in the art and will not be described in detail here. By using the tissue suturing device of this application, the capturing member 210 can accurately capture the suture feeder 110 and the suture 900 connected to the suture feeder 110. This design greatly reduces the difficulty of the operation and improves the efficiency and accuracy of the operation.

[0050] Reference Figures 1 to 6 In this embodiment, the thread feeding assembly 100 includes a thread feeding member 110 and a first carrier member 120. The thread feeding member 110 is detachably mounted on the first end of the first carrier member 120, and the second end of the first carrier member 120 is rotatably disposed on the carrier portion 400. The first end of the suture 900 is connected to the thread feeding member 110, and the thread feeding member 110 forms the output end of the thread feeding assembly 100. In this embodiment, the first end of the suture 900 is fixedly connected to the thread feeding member 110. This design avoids the problem of the first end of the suture 900 and the thread feeding member 110 detaching during their joint movement. The carrier portion 400 is provided with a rotation space 410 for the first carrier member 120 to rotate. Both ends of the rotation space 410 are open to allow the first carrier member 120 to rotate smoothly on the carrier portion 400.

[0051] Reference Figures 18 to 23In specific applications, the carrier 400 and the suturing device are first transported to the tissue around the organ defect hole 1000 by the transport unit 500. At this time, the suture feeder 110 is in the initial position. Then, the first carrier 120 is driven to rotate clockwise on the carrier 400 to switch the suture feeder 110 from the initial position to the captured position. During this process, the suture feeder 110 will drive the first end of the suture 900 through the tissue around the organ defect hole 1000. After the suture feeder 110 switches to the captured position, the capturing member 210 will capture the suture feeder 110. Next, the first carrier 120 is driven to rotate counterclockwise on the carrier portion 400. During this process, since the suture feeder 110 has been captured by the capture member 210, and since the suture feeder 110 is detachably mounted on the first carrier 120, the suture feeder 110 will separate from the first carrier 120 as the first carrier 120 rotates. The first carrier 120 will then return to the carrier portion 400. Subsequently, under the support of the delivery portion 500, the suture feeder 110 will be withdrawn outward from the organ defect hole 1000 along with the capture member 210, so that the first end and the second end of the suture 900 can be simultaneously outside the organ defect hole 1000. Finally, other corresponding surgical operations can be completed. Of course, in other embodiments, during the process of driving the suture feeder 110 from the initial position to the captured position, the first carrier 120 can also rotate counterclockwise, and during the process of driving the first carrier 120 to return to the carrier portion 400, the first carrier 120 can rotate clockwise. The design of the suture feeder 110 being detachably mounted on the first carrier 120 and the suture feeder 110 being connected to the first end of the suture 900 facilitates the capture member 210 indirectly capturing the suture 900 by capturing the suture feeder 110. This design simplifies the capture process and improves capture efficiency. Furthermore, the detachable mounting of the suture feeder 110 on the first carrier 120 facilitates the separation of the suture feeder 110 from the first carrier 120 after the capture member 210 has captured it. This allows the first carrier 120 to be easily repositioned into the carrier portion 400, thereby reducing the possibility of the first carrier 120 contacting and damaging other tissues of the patient during its outward withdrawal.

[0052] Reference Figures 3 to 6 In this embodiment, the thread feeder 110 includes a body portion 111 and a captured portion 112. The first end of the suture 900 is connected to the body portion 111, and the captured portion 112 is located on the side of the body portion 111 away from the first carrier 120. The capturing member 210 is provided with a plurality of expandable capturing holes 214. The capturing holes 214 have an initial position and an expanded position for the captured portion 112 to pass through. When the thread feeder 110 is in the captured position, the captured portion 112 is captured by the capturing holes 214, and the capturing holes 214 are in the initial position.

[0053] In this embodiment, the main body 111 and the captured part 112 are integrally molded and manufactured, and the first end of the stitching line 900 is fixedly connected to the main body 111. The capture component 210 includes a capture frame 211, a plurality of parallel first capture strips 212 and a plurality of parallel second capture strips 213. The two ends of the plurality of first capture strips 212 and the two ends of the plurality of second capture strips 213 are respectively fixedly connected to the frame wall of the capture frame 211. The length direction of the first capture strips 212 and the length direction of the second capture strips 213 are perpendicular to each other. The plurality of first capture strips 212 and the plurality of second capture strips 213 are interleaved to form a woven net. The first capture strips 212 and the second capture strips 213 are both made of spring strips. In other embodiments, the first capture strips 212 and the second capture strips 213 can also be made of nickel-titanium material. The gap between two adjacent first capture strips 212 and two adjacent second capture strips 213 forms an expandable capture hole 214.

[0054] Reference Figure 7 and Figure 8 In specific applications, during the process of the wire feeder 110 switching from the initial position to the captured position, the capture hole 214 is initially in the initial position. Then, under the penetration action of the wire feeder 110, the capture hole 214 will expand so that the wire feeder 110 can pass smoothly through the capture hole 214. After the wire feeder 110 switches to the captured position, the captured part 112 will be captured by the capture hole 214, at which time the capture hole 214 is in the initial position.

[0055] Reference Figures 5 to 8 In one embodiment of this application, the output end of the first carrier 120 is provided with a receiving groove, and the main body 111 can be located in the receiving groove; the captured part 112 is approximately N-shaped, and the captured part 112 includes a first connecting section 1121, a bent section 1122, and a second connecting section 1123 connected in sequence. When the wire feeder 110 is in the initial position, the main body 111 is located in the receiving groove, the first connecting section 1121 is located in the receiving groove, the second connecting section 1123 is located outside the first carrier 120, and the bent section 1122 is attached to the first carrier 120. At the output end; when the wire feeder 110 is in the captured position, the main body 111 is located on the side of the capture member 210 close to the first carrier member 120. The first connecting section 1121 and the second connecting section 1123 are respectively inserted into two adjacent capture holes 214. The bent section 1122 is located on the side of the capture member 210 away from the first carrier member 120 and abuts against the surface of the first capture bar 212 or the second capture bar 213 away from the first carrier member 120. The first capture bar 212 or the second capture bar 213 is used to prevent the bent section 1122 from moving toward the first carrier member 120.

[0056] In this embodiment, the first connecting section 1121, the bending section 1122, and the second connecting section 1123 are integrally molded and manufactured, with a receiving groove disposed on the end face of the output end of the first carrier 120. In specific applications, during the process of the thread feeder 110 switching from the initial position to the captured position, the main body 111 drives the captured part 112 through a capture hole 214. Then, under the reverse rotation of the first carrier 120, the captured part 112 will also rotate in the reverse direction until the first connecting section 1121 and the second connecting section 1123 of the captured part 112 are respectively inserted into two adjacent capture holes 214 in the direction toward the first carrier 120, and the bending section 1122 abuts against the first capture strip 212 or the second capture strip 213. At this time, the captured part 112 will be in the captured position. The captured part 112 is designed so that the suture 900 can be captured by the capture member 210, ensuring the normal conduct of the suture operation.

[0057] As an optional embodiment, the end face of the output end of the first carrier 120 is formed with a puncture tip. The puncture tip facilitates the first carrier 120 to drive the wire feeder 110 through the tissue around the organ defect hole 1000, reducing the difficulty of the operation and improving the efficiency of the operation.

[0058] Reference Figures 9 to 11 As another embodiment of this application, the output end of the first carrier 120 is provided with a receiving groove, and the main body 111 can be located in the receiving groove. The captured portion 112 can be mounted on the output end of the first carrier 120, and the end face of the captured portion 112 away from the main body portion 111 has a pointed tip; when the wire feeder 110 is in the initial position, the main body portion 111 is located in the receiving groove, and the captured portion 112 is mounted on the output end of the first carrier 120; when the wire feeder 110 is in the captured position, the main body portion 111 is located on the side of the capture member 210 close to the first carrier 120, and the captured portion 112 is located on the side of the capture member 210 away from the first carrier 120, and abuts against the surfaces of two adjacent first capture bars 212 away from the first carrier 120 and the surfaces of two adjacent second capture bars 213 away from the first carrier 120, and the two adjacent first capture bars 212 and the two adjacent second capture bars 213 are used to prevent the captured portion 112 from moving toward the first carrier 120.

[0059] In this embodiment, the receiving groove is provided on the end face of the output end of the first carrier 120. The area of ​​the captured part 112 near the end face of the main body part 111 is larger than the area of ​​the groove opening of the receiving groove, so that the captured part 112 can be placed on the receiving groove. In addition, the area of ​​the captured part 112 near the end face of the main body part 111 is larger than the initial area of ​​the capture hole 214.

[0060] In practical applications, during the process of the thread feeder 110 switching from the initial position to the captured position, the main body 111 drives the captured part 112 through a capture hole 214. Then, under the reverse rotation of the first carrier 120, the captured part 112 will also rotate in the opposite direction until the end face of the captured part 112 near the main body 111 comes into contact with the surfaces of two adjacent first capture strips 212 away from the first carrier 120 and the surfaces of two adjacent second capture strips 213 away from the first carrier 120. At this point, the captured part 112 will be blocked from moving further toward the first carrier 120 by the capture hole 214 composed of the first capture strips 212 and the second capture strips 213, so that the captured part 112 is in the captured position. The captured part 112 is designed so that the suture 900 can be captured by the capture member 210, ensuring the normal progress of the suture operation. The design of the pointed end of the captured part 112, which is far from the main body part 111, not only makes it easier to drive the captured part 112 through the tissue around the organ defect hole 1000, but also makes it easier for the captured part 112 to pass through the capture hole 214, reducing the difficulty of the operation and improving the efficiency of the operation.

[0061] Reference Figure 1 and Figure 2 In this embodiment, the capture assembly 200 further includes a second carrier 220. The capture member 210 is mounted on a first end of the second carrier 220, and the second end of the second carrier 220 is rotatably disposed on the carrier portion 400. The second carrier 220 has an open position that opens toward the wire feeder 110 in the captured position, and an avoidance position that stays inside the carrier portion 400.

[0062] In this embodiment, the second support member 220 is a support arm made of metal, which rotates within the rotation space 410 of the support portion 400. An embedding groove for the capturing member 210 is provided at the second end of the second support member 220. The outer wall of the capturing member 210 and the inner wall of the embedding groove are interference-fitted. Alternatively, in other embodiments, the capturing member 210 can be fixedly connected to the embedding groove by welding. An arc groove is provided on the second support member 220 to allow the wire feeder 110 to move on the second support member 220 to the position of the capturing member 210. The arc groove facilitates the smooth capture of the wire feeder 110 by the capturing member 210.

[0063] Reference Figure 1 , Figure 2 as well as Figure 12In specific applications, firstly, the second carrier 220 is switched from the avoidance position to the open position. At this time, the length direction of the second carrier 220 forms a preset angle with the length direction of the carrier part 400 in the horizontal direction. The preset angle ranges from 20° to 90°. During this process, the second carrier 220 will rotate counterclockwise. Then, the suture feeder 110 is switched from the initial position to the captured position under the driving action of the first carrier 120. At this time, the capture member 210 will capture the suture feeder 110. During this process, the first carrier 120 will rotate clockwise. Then, the tissue suturer performs the remaining operations to complete the puncture and suturing operation. The above-described design not only exposes the capture member 210 to the outside of the support portion 400, thus facilitating the better capture of the wire feeder 110 by the capture member 210, but also facilitates the second support member 220 to switch the wire feeder 110 from the open position to the avoidance position after the capture member 210 captures the wire feeder 110, thereby reducing the possibility of the second support member 220 and the wire feeder 110 causing damage to other tissues of the patient during the outward withdrawal process.

[0064] Reference Figure 1 In this embodiment, two sets of suturing devices are provided, and the two sets of suturing devices are arranged opposite each other on the support part 400 with the axis of the support part 400 as the center. The above design achieves the effect of suturing two tissues with one set of instruments, which greatly improves surgical efficiency.

[0065] Reference Figures 18 to 23In specific applications, when suturing the organ defect hole 1000, the carrier 400 carrying two sets of suturing devices is first transported to the tissue surrounding the organ defect hole 1000, and the suture feeder 110 and the trapping member 210 in one set of suturing devices are respectively positioned on both sides of the tissue opposite to the first location of the organ defect hole 1000; then, the suture feeder assembly 100 in the set of suturing devices is driven to rotate clockwise, thereby switching the suture feeder 110 from the initial position to the trapped position, and driving the second carrier 220 to rotate counterclockwise. During this process, the suture feeder... 110 will drive the first end of the suture 900 through the tissue at the first location of the organ defect hole 1000. When the suture feeder 110 switches to the captured position, the second carrier 220 also drives the capturing member 210 to switch to the open position, and the capturing member 210 will capture the suture feeder 110. Then, the second carrier 220 is driven to rotate clockwise to drive the capturing member 210 and the suture feeder 110 back into the carrier part 400, and the first carrier 120 is driven to rotate counterclockwise to drive the first carrier 120 back into the carrier part 400. After the puncture and suturing of the first tissue is completed, the tissue suturer is pulled back as a whole, and then the suture feeder 110 and the capturing member 210 in another set of suturing devices are moved to the opposite sides of the second tissue at the organ defect hole 1000. The first tissue and the second tissue are set opposite to each other, and the second tissue is punctured and sutured using this set of suturing devices. After the first and second tissue aspiration and suturing are completed, the tissue suture device is withdrawn from the body as a whole, and then other surgical instruments are used to complete other corresponding surgical procedures. Furthermore, if one set of 900mm sutures is insufficient for the suturing requirements, multiple sets of 900mm sutures can be used for suturing.

[0066] Reference Figure 3 , Figure 12 as well as Figure 13 The suturing device in this embodiment further includes a first driving member 300, which is drivenly connected to the first carrier member 120 to drive the first carrier member 120 to rotate on the carrier portion 400. The capture assembly 200 further includes a second driving member 230, which is drivenly connected to the second end of the second carrier member 220 to drive the second carrier member 220 to rotate on the carrier portion 400.

[0067] Reference Figures 18 to 23In this embodiment of the application, when puncturing and suturing the organ defect hole 1000, the second drive member 230 first drives the second carrier member 220 to rotate on the carrier part 400. The second carrier member 220 drives the capturing member 210 to rotate until the second carrier member 220 rotates to the open position. Then, the first drive member 300 drives the first carrier member 120 to rotate on the carrier part 400. The first carrier member 120 drives the suture feeder 110 to rotate until the suture feeder 110 rotates to the captured position. At this time, the capturing member 210 captures the suture feeder 110 and connects with the suture feeder 110. The suture 900 is then inserted; next, the first drive member 300 drives the first carrier member 120 to return to the inside of the carrier portion 400, and the second drive member 230 drives the second carrier member 220 to switch from the open position to the avoidance position. At this time, the second carrier member 220 drives the suture feeder 110 to move into the inside of the carrier portion 400. Finally, the transport part 500 withdraws the carrier portion 400 and the suture device from the tissue around the organ defect hole 1000, so that the first end and the second end of the suture 900 can be simultaneously outside the organ defect hole 1000, thereby completing the puncture suturing operation. The first drive member 300 and the second drive member 230 are designed to facilitate the rotation of the first carrier member 120 and the second carrier member 220 inside the carrier portion 400, respectively, improving the convenience of the surgical operation.

[0068] Reference Figure 3 , Figures 12 to 14 In one embodiment of this application, the first carrier 120 includes a carrier body 121 and a connecting post 122. The wire feeder 110 is detachably mounted on the first end of the carrier body 121, and the connecting post 122 is fixedly connected to the second end of the carrier body 121. The carrier body 121 forms the output end of the first carrier 120. The wire feed assembly 100 also includes a connecting shaft 130. The axial direction of the connecting shaft 130 is perpendicular to the length direction of the carrier portion 400. The connecting shaft 130 is fixedly connected inside the carrier portion 400 and passes through the connecting post 122. The connecting post 122 is rotatably mounted on the connecting shaft 130. The wire feeding assembly 100 also includes a limiting post 140, which is mounted on the connecting post 122. The axial direction of the limiting post 140 is perpendicular to the axial direction of the connecting post 122. The first driving member 300 is a driving line 310, which is wound around the limiting post 140 at least once. The two ends of the driving line 310 extend from opposite sides of the connecting post 122 toward the conveying part 500 away from the bearing part 400.

[0069] In this embodiment, the support body 121 and the connecting column 122 are integrally molded. The support body 121 is generally arc-shaped, with an arc range of two-thirds π to four-thirds π. In this embodiment, the arc of the support body 121 is approximately π. This design reduces the rotation range required for the first support member 120 to rotate while ensuring smooth switching of the suture feeder 110 from the initial position to the captured position, thereby reducing the possibility of the tissue suture device causing damage to other tissues of the patient. The support body 121 has through holes along its extension direction for the suture 900 to pass through, as well as through the first and second ends of the support body 121. The through hole near the first end of the support body 121 forms a receiving groove. The two ends of the connecting shaft 130 are fixedly connected to the inner sidewall of the support portion 400. The connecting post 122 has a mounting groove for mounting the limiting post 140. The outer wall of the limiting post 140 is adapted to the inner wall of the mounting groove. In this embodiment, the portion of the drive line 310 extending to the side of the conveying part 500 away from the bearing part 400 is marked with evenly spaced markings. The drive line 310 is wound once around the limiting post 140. In other embodiments, the drive line 310 may be wound two or more times. In addition, a blocking disc is fixedly connected to the end face of the limiting post 140 away from the connecting post 122. The diameter of the blocking disc is larger than the diameter of the limiting post 140, thereby blocking the drive line 310 between the limiting post 140 and the connecting post 122 and reducing the possibility of the drive line 310 detaching from the outer surface of the limiting post 140.

[0070] In practical applications, when the wire feeder 110 switches from the initial position to the captured position, the first end of the drive line 310 is pulled towards the side of the conveying unit 500 away from the carrier unit 400. Under the friction of the drive line 310, the connecting post 122 will rotate clockwise around the axis of the connecting shaft 130, so that the first carrier unit 120 drives the wire feeder 110 to switch from the initial position to the captured position. After the wire feeder 110 is captured by the capturing member 210, the wire feeder 110 will separate from the first carrier unit 120. Then, the second end of the drive line 310 is pulled towards the side of the conveying unit 500 away from the carrier unit 400. Under the friction of the drive line 310, the connecting post 122 will rotate counterclockwise around the axis of the connecting shaft 130, so that the first carrier unit 120 returns to the inside of the carrier unit 400. Of course, in other examples, the connecting post 122 can also rotate counterclockwise around the axis of the connecting shaft 130 to switch the suture feeder 110 from the initial position to the captured position, and the connecting post 122 can rotate clockwise around the axis of the connecting shaft 130 to reset the first carrier 120 inside the carrier portion 400. The markings on the drive line 310 make it easy for the doctor to know the pulling length of the drive line 310, thereby making it easier for the doctor to accurately switch the suture feeder 110 from the initial position to the captured position with the help of the drive line 310, reducing the difficulty of the operation and improving the efficiency of the operation.

[0071] Reference Figure 3 , Figures 12 to 14 In another embodiment of this application, the first carrier 120 includes a carrier body 121 and a connecting post 122. The wire feeder 110 is detachably mounted on the first end of the carrier body 121, which forms the output end of the first carrier 120. The connecting post 122 is fixedly connected to the second end of the carrier body 121. The wire feed assembly 100 also includes a connecting shaft 130. The axis of the connecting shaft 130 is perpendicular to the length direction of the carrier portion 400. The connecting shaft 130 is fixedly connected inside the carrier portion 400 and passes through the connecting post 122. The connecting post 122 is rotatably mounted on the connecting shaft 130. The wire feeding assembly 100 also includes a limiting post 140, which is mounted on the connecting post 122. The axial direction of the limiting post 140 is perpendicular to the axial direction of the connecting post 122. The first driving member 300 is a driving line 310, which is wound around the limiting post 140 at least once. The two ends of the driving line 310 extend from opposite sides of the connecting post 122 toward the conveying part 500 away from the bearing part 400.

[0072] In this embodiment, the support body 121 and the connecting column 122 are integrally molded. The support body 121 is generally arc-shaped, with an arc range of two-thirds π to four-thirds π. In this embodiment, the arc of the support body 121 is approximately π. This design reduces the rotation range required for the first support member 120 to rotate while ensuring smooth switching of the suture feeder 110 from the initial position to the captured position, thereby reducing the possibility of the tissue suture device causing damage to other tissues of the patient. The support body 121 has through holes along its extension direction for the suture 900 to pass through, as well as through the first and second ends of the support body 121. The through hole near the first end of the support body 121 forms a receiving groove. The two ends of the connecting shaft 130 are fixedly connected to the inner sidewall of the support portion 400. The connecting post 122 has an installation groove for mounting the limiting post 140. The outer wall of the limiting post 140 is adapted to the inner wall of the installation groove. In this embodiment, the portion of the drive line 310 extending to the side of the conveying part 500 away from the bearing part 400 is marked evenly at intervals. The drive line 310 is wound once around the limiting post 140 and once around the connecting post 122. In other embodiments, the drive line 310 can be wound two or more times around the limiting post 140 and the connecting post 122 respectively. In addition, a blocking disc is fixedly connected to the end face of the limiting post 140 away from the connecting post 122. The diameter of the blocking disc is larger than the diameter of the limiting post 140, thereby blocking the drive line 310 between the limiting post 140 and the connecting post 122 and reducing the possibility of the drive line 310 detaching from the outer surface of the limiting post 140.

[0073] In practical applications, when the wire feeder 110 switches from the initial position to the captured position, the first end of the drive line 310 is pulled towards the side of the conveying unit 500 away from the carrier unit 400. Under the friction of the drive line 310, the connecting post 122 will rotate clockwise around the axis of the connecting shaft 130, so that the first carrier unit 120 drives the wire feeder 110 to switch from the initial position to the captured position. After the wire feeder 110 is captured by the capturing member 210, the wire feeder 110 will separate from the first carrier unit 120. Then, the second end of the drive line 310 is pulled towards the side of the conveying unit 500 away from the carrier unit 400. Under the friction of the drive line 310, the connecting post 122 will rotate counterclockwise around the axis of the connecting shaft 130, so that the first carrier unit 120 returns to the inside of the carrier unit 400. The markings on the drive line 310 make it easy for doctors to know the pulling length of the drive line 310, so that doctors can accurately switch the feeder 110 from the initial position to the captured position with the help of the drive line 310, reducing the difficulty of the operation and improving the efficiency of the operation.

[0074] Reference Figure 14and Figure 15 In another embodiment of this application, the first carrier 120 includes a carrier body 121 and a connecting post 122. The wire feeder 110 is detachably mounted on the first end of the carrier body 121, and the carrier body 121 forms the output end of the first carrier 120. The connecting post 122 is fixedly connected to the second end of the carrier body 121. The wire feed assembly 100 also includes a connecting shaft 130. The axial direction of the connecting shaft 130 is perpendicular to the length direction of the carrier portion 400. The connecting shaft 130 is fixedly connected inside the carrier portion 400 and passes through the connecting post 122. The connecting post 122 is rotatably mounted on the connecting shaft 130. The first driving member 300 includes a first driving rod 320 and a connecting bent rod 330. The connecting bent rod 330 is disposed between the first driving rod 320 and the connecting post 122. The first end of the connecting bent rod 330 is rotatably disposed on the end of the first driving rod 320 about a direction perpendicular to the length of the first driving rod 320. The second end of the connecting bent rod 330 is fixedly connected to the connecting post 122. The first driving rod 320 is slidably disposed inside the bearing portion 400 along the length of the bearing portion 400 to drive the connecting bent rod 330 to rotate about a direction perpendicular to the length of the first driving rod 320.

[0075] In this embodiment, the support body 121 and the connecting column 122 are integrally molded. The support body 121 is generally arc-shaped, with an arc range of two-thirds π to four-thirds π. In this embodiment, the arc of the support body 121 is approximately π. This design reduces the rotation range required for the first support member 120 to rotate while ensuring smooth switching of the suture feeder 110 from the initial position to the captured position, thereby reducing the possibility of the tissue suturer causing damage to other tissues of the patient during puncture and suturing. The support body 121 has through holes along its extension direction for the suture 900 to pass through, as well as through the first and second ends of the support body 121. The through hole near the first end of the support body 121 forms a receiving groove. The two ends of the connecting shaft 130 are fixedly connected to the inner sidewall of the support portion 400. The length direction of the first drive rod 320 is parallel to the length direction of the bearing part 400, and the bending direction of the connecting rod 330 is set towards the first drive rod 320. The connecting rod 330 and the first drive rod 320 are connected by a connecting pin. The connecting pin passes through the connecting rod 330 and the first drive rod 320 in sequence. The first drive rod 320 is fixedly connected to the connecting pin. The connecting rod 330 is rotatably sleeved on the outer periphery of the connecting pin. The second end of the connecting rod 330 is fixedly connected to a straight rod parallel to the first drive rod 320. The straight rod is fixedly connected to the connecting post 122. The straight rod reduces the jerking sensation when pushing the first drive rod 320 to move, making the action of pushing the first drive rod 320 to move smoother.

[0076] Reference Figure 3 and Figure 16 As one embodiment of this application, the support portion 400 is provided with a rotation space 410 for the first support member 120 and the second support member 220 to rotate; the second driving member 230 is a second driving rod, and a sliding groove 420 communicating with the rotation space 410 is provided on the outer wall of the support portion 400 along the length direction of the support portion 400, and the second driving rod is slidably disposed in the sliding groove 420. The capture assembly 200 also includes a connector 240, which passes through the second end of the second support member 220 and enters the second driving rod. The connector 240 is connected to the second end of the second support member 220 and is fixedly connected to the second driving rod; a first limiting groove 221 is provided on the second end of the second support member 220, and the end of the first limiting groove 221 away from the axis of the support portion 400 is inclined away from the first end of the second support member 220. The capture assembly 200 also includes a force-applying member that passes through the first limiting groove 221 and into the support portion 400. The force-applying member is fixedly connected to the support portion 400. The force-applying member can be slidably disposed in the first limiting groove 221 along the extension direction of the first limiting groove 221, so that the second end of the second support member 220 is rotatably disposed in the support portion 400.

[0077] In this embodiment, both ends of the rotation space 410 are open; the length direction of the second drive rod is parallel to the length direction of the support part 400, and the end of the second drive rod away from the connector 240 extends to the side of the conveying part 500 away from the support part 400, so that the doctor can drive the second drive rod to slide in the sliding groove 420; the connector 240 and the force-applying member are both pins, the second drive rod has a through hole for the connector 240 to pass through, the second end of the second support part 220 has a through hole for the connector 240 to pass through, and the support part 400 has a through hole for the force-applying member to pass through; the first limiting groove 221 is inclined, and its extension direction forms a preset angle with the length direction of the support part 400 in the horizontal direction. In this embodiment, the preset angle ranges from 20° to 90°, and the preset angle determines the rotation angle of the second support part 220. The first limiting through groove 221 has a first groove bottom and a second groove bottom at opposite ends along its extension direction, with the second groove bottom located on the side of the first groove bottom away from the axis of the bearing part 400.

[0078] In a specific application, when the second support member 220 switches from the avoidance position to the open position, the second drive rod is pulled away from the first end of the second support member 220 along the extension direction of the sliding groove 420. Due to the presence of the connector 240 and the force-applying member, the force-applying member will move from the bottom of the first groove to the bottom of the second groove along the length direction of the first limiting groove 221 as the second end of the second support member 220 will rotate around the axis of the connector 240. When the force-applying member abuts against the bottom of the second groove of the limiting groove, the second support member 220 will not continue to rotate, and the second support member 220 will also be in the open position.

[0079] Reference Figure 3 and Figure 17 As another embodiment of this application, the support portion 400 is provided with a rotation space 410 for the first support member 120 and the second support member 220 to rotate; the second driving member 230 is a second driving rod, and a sliding groove 420 communicating with the rotation space 410 is provided on the outer wall of the support portion 400 along the length direction of the support portion 400, and the second driving rod is slidably disposed in the sliding groove 420. The capture assembly 200 also includes a connector 240, which passes through the second end of the second support member 220 and enters the second drive rod. The connector 240 is connected to the second end of the second support member 220 and is fixedly connected to the second drive rod. A second limiting groove 430 is provided on the outer wall of the support portion 400. The end of the second limiting groove 430 away from the axis of the support portion 400 is inclined towards the second end of the second support portion 400. The capture assembly 200 also includes a force-applying member, which passes through the second limiting groove 430 and enters the second end of the second support member 220. The force-applying member is fixedly connected to the second support member 220 and can slide within the second limiting groove 430 along the extension direction of the second limiting groove 430.

[0080] In this embodiment, both ends of the rotation space 410 are open; the length direction of the second drive rod is parallel to the length direction of the support part 400, and the end of the second drive rod away from the connector 240 extends to the side of the conveying part 500 away from the support part 400, so that the doctor can drive the second drive rod to slide in the sliding groove 420; the connector 240 and the force-applying member are both pins, and the second drive rod has a through hole for the connector 240 to pass through, the second end of the second support part 220 has a through hole for the connector 240 to pass through, and the second end of the second support part 220 has a through hole for the force-applying member to pass through; the second limiting groove 430 is inclined, and its extension direction forms a preset angle with the length direction of the support part 400 in the horizontal direction. In this embodiment, the preset angle ranges from 20° to 90°, and the preset angle determines the rotation angle of the second support part 220. The second limiting groove 430 has a third groove bottom and a fourth groove bottom at opposite ends along its extension direction, with the fourth groove bottom located on the side of the third groove bottom away from the axis of the bearing part 400.

[0081] In a specific application, when the second support member 220 switches from the avoidance position to the open position, the second drive rod is pulled away from the first end of the second support member 220 along the extension direction of the sliding groove 420. Due to the presence of the connector 240 and the force-applying member, the force-applying member will move along the length direction of the second limiting through groove 430 from the bottom of the third groove to the bottom of the fourth groove as the second drive rod moves. At this time, the second end of the second support member 220 will rotate around the axis of the connector 240. When the force-applying member abuts against the bottom of the fourth groove of the limiting through groove, the second support member 220 will not continue to rotate, and the second support member 220 will also be in the open position.

[0082] Reference Figure 3 , Figure 12 , Figure 14 and Figure 16 As an optional embodiment of this application, the sewing device further includes a limiting pin 600, which is disposed on one side of the connecting shaft 130 and fixedly connected inside the bearing part 400. The axial direction of the limiting pin 600 is perpendicular to the length direction of the bearing part 400. When the thread feeder 110 is in the initial position, the bearing body 121 abuts against the limiting pin 600.

[0083] In this optional configuration, two limiting pins 600 are disposed within the rotation space 410, each corresponding to one of the two sets of suture devices. The limiting pins 600 act as a barrier to the hook needle body, preventing the carrier body 121 from crossing the rotation space 410 and causing damage to other tissues of the patient after it has returned to its original position within the carrier part 400.

[0084] Reference Figure 13 , Figure 14 and Figure 16 As an optional embodiment of this application, a dividing ring 123 is sleeved on the connecting post 122, and the connecting post 122 is divided into a first part and a second part by the dividing ring 123. The limiting post 140 is installed on the first part, and the second carrier 220 is provided with a connecting groove 222 that is adapted to the second part. When the wire feeder 110 is in the initial position and the second carrier 220 is in the avoidance position, the second carrier 220 and the first carrier 120 are connected by the engagement of the second part with the connecting groove 222.

[0085] In this optional configuration, the connecting groove 222 is an inverted U-shaped groove. The segmented ring 123 not only facilitates the joint positioning of the first carrier 120 and the second carrier 220, thereby preventing the first carrier 120 and the second carrier 220 from swinging arbitrarily and causing damage to other tissues of the patient during the insertion and withdrawal of the tissue suture device into and out of the organ defect hole 1000, but also facilitates the restriction of the drive line 310 on the outer periphery of the first part, reducing the possibility of the drive line 310 swinging arbitrarily on the connecting post 122, and ensuring the reliability of the drive line 310 in driving the connecting post 122 and the carrier body 121 to rotate.

[0086] Reference Figure 14 As an optional embodiment of this application, a limiting ring 131 is fixedly connected to the connecting shaft 130. The limiting ring 131 is sleeved on the connecting shaft 130 and is located between the connecting post 122 and the inner wall of the bearing part 400. This design facilitates the accurate insertion of the wire feeder 110 into the capture hole 214. Of course, in other embodiments, a limiting ring 131 coaxial with the connecting post 122 can also be fixedly connected to one end face of the connecting post 122. The limiting ring 131 is located between the connecting post 122 and the inner wall of the bearing part 400, and the connecting shaft 130 passes through the limiting ring 131.

[0087] Reference Figure 1 and Figure 12In this embodiment, the delivery section 500 is a delivery tube, and the support section 400 is a support tube. The first end of the delivery tube is fixedly connected to the second end of the support tube, and the first end of the delivery tube communicates with the first end of the support tube. The suture 900 passes through the delivery tube. The tissue suturing device also includes a TIP head 700 (tip) and a protective sleeve 800. The TIP head 700 is fixedly connected to the second end of the support tube, and the length direction of the TIP head 700 is parallel to the length direction of the support tube. The diameter of the TIP head 700 gradually decreases from near to far from the second end of the support tube. The protective sleeve 800 is fitted onto the support tube and at the junction of the support tube and the delivery tube, and is fixedly connected to the support tube and at the junction of the support tube and the delivery tube. The carrier tube and the delivery tube are respectively provided with through holes, and the two through holes are set in a corresponding manner. The first end of the suture 900 is inserted into the delivery tube and then passes outward from the two through holes of the carrier tube and the delivery tube, and passes into the rotation space 410, and finally passes into the through hole on the carrier body 121.

[0088] The maximum diameter of the TIP tip 700 is the same as the diameter of the carrier tube, and the TIP tip 700 is made of silicone material. The TIP tip 700 is fixedly connected to the carrier tube by adhesive bonding. The delivery tube is made of polymer material, and its axis is parallel to that of the carrier tube. Both the first drive member 300 and the second drive member 230 extend from the inside of the delivery tube to the outside of the tissue suture device. The delivery tube and the carrier tube are fixedly connected by welding or adhesive bonding. The protective sleeve 800 is made of metal material. The protective sleeve 800 encloses the second drive rod inside the protective sleeve 800. This facilitates the sliding of the second drive rod along the length of the sliding groove 420 and prevents the second drive rod from bending and damaging surrounding tissues during sliding within the sliding groove 420.

[0089] Reference Figure 1 and Figure 2 In one specific embodiment of this application, the tissue suture device includes a suturing apparatus, a support portion 400, and a delivery portion 500. The suturing apparatus is disposed on the support portion 400, and the support portion 400 is mounted on the delivery portion 500. The delivery portion 500 is used to deliver the suturing apparatus to the tissue surrounding the organ defect hole 1000. The suturing apparatus includes a suture feeding assembly 100 and a trapping assembly 200. The suture feeding assembly 100 is rotatably disposed on the support portion 400, and its output end is connected to a first end of a suture 900. The trapping assembly 200 is disposed on the support portion 400 and includes a trapping member 210 for trapping the output end of the suture feeding assembly 100. The output end of the suture feeding assembly 100 has an initial position where it remains inside the support portion 400, and a trapped position where the first end of the suture 900 passes through the tissue surrounding the organ defect hole 1000 and is trapped by the trapping member 210.

[0090] Reference Figures 1 to 6 The thread feeding assembly 100 includes a thread feeding member 110 and a first carrier member 120. The thread feeding member 110 is detachably mounted on the first end of the first carrier member 120, and the second end of the first carrier member 120 is rotatably disposed on the carrier portion 400. The first end of the suture 900 is connected to the thread feeding member 110, and the thread feeding member 110 forms the output end of the thread feeding assembly 100.

[0091] Reference Figures 3 to 6 The thread feeder 110 includes a main body 111 and a captured portion 112. The first end of the suture 900 is connected to the main body 111, and the captured portion 112 is located on the side of the main body 111 away from the first carrier 120. The capturing member 210 is provided with a plurality of expandable capturing holes 214. The capturing holes 214 have an initial position and an expanded position for the captured portion 112 to pass through. When the thread feeder 110 is in the captured position, the captured portion 112 is captured by the capturing holes 214, and the capturing holes 214 are in the initial position.

[0092] Reference Figures 5 to 8 The output end of the first carrier 120 is provided with a receiving groove, and the main body 111 can be located in the receiving groove. The captured part 112 includes a first connecting section 1121, a bent section 1122 and a second connecting section 1123 connected in sequence. When the wire feeder 110 is in the initial position, the main body 111 is located in the receiving groove, the first connecting section 1121 is located in the receiving groove, the second connecting section 1123 is located outside the first carrier 120, and the bent section 1122 is placed on the output end of the first carrier 120. When the wire feeder 110 is in the captured position, the main body 111 is located on the side of the capturing member 210 close to the first carrier 120, the first connecting section 1121 and the second connecting section 1123 are respectively inserted into two adjacent capturing holes 214, and the bent section 1122 is located on the side of the capturing member 210 away from the first carrier 120.

[0093] Reference Figure 1 and Figure 2 The capture assembly 200 also includes a second carrier 220, with the capture member 210 mounted on a first end of the second carrier 220, and a second end of the second carrier 220 rotatably disposed on the carrier portion 400. The second carrier 220 has an open position that opens toward the wire feeder 110 in the captured position, and an avoidance position that remains inside the carrier portion 400.

[0094] Reference Figure 3 , Figure 12 as well as Figure 13The suturing device also includes a first drive member 300, which is drivenly connected to the first support member 120 to drive the first support member 120 to rotate on the support portion 400. The capture assembly 200 also includes a second drive member 230, which is drivenly connected to the second end of the second support member 220 to drive the second support member 220 to rotate on the support portion 400.

[0095] Reference Figure 3 , Figures 12 to 14 The first carrier 120 includes a carrier body 121 and a connecting post 122. The wire feeder 110 is detachably mounted on the first end of the carrier body 121, and the connecting post 122 is fixedly connected to the second end of the carrier body 121. The carrier body 121 forms the output end of the first carrier 120. The wire feeder assembly 100 also includes a connecting shaft 130. The axis of the connecting shaft 130 is perpendicular to the length direction of the carrier portion 400. The connecting shaft 130 is fixedly connected inside the carrier portion 400 and passes through the connecting post 122. The connecting post 122 is rotatably mounted on the connecting shaft 130. The wire feeding assembly 100 also includes a limiting post 140, which is mounted on the connecting post 122. The axial direction of the limiting post 140 is perpendicular to the axial direction of the connecting post 122. The first driving member 300 is a driving line 310. The driving line 310 is wound around the limiting post 140 at least once. The two ends of the driving line 310 extend from opposite sides of the connecting post 122 toward the conveying part 500 away from the bearing part 400.

[0096] Reference Figure 3 and Figure 16 The support portion 400 is provided with a rotation space 410 for the first support member 120 and the second support member 220 to rotate; the second driving member 230 is a second driving rod, and a sliding groove 420 communicating with the rotation space 410 is provided on the outer wall of the support portion 400 along the length direction of the support portion 400. The second driving rod is slidably disposed in the sliding groove 420. The capture assembly 200 also includes a connector 240, which passes through the second end of the second support member 220 and enters the second driving rod. The connector 240 is connected to the second support member 220 and fixedly connected to the second driving rod. A first limiting groove 221 is provided on the second end of the second support member 220. The end of the first limiting groove 221 away from the axis of the support portion 400 is inclined away from the first end of the second support member 220. The capture assembly 200 also includes a force-applying member that passes through the first limiting groove 221 and into the support portion 400. The force-applying member is fixedly connected to the support portion 400. The force-applying member can be slidably disposed in the first limiting groove 221 along the extension direction of the first limiting groove 221, so that the second end of the second support member 220 is rotatably disposed in the support portion 400.

[0097] Reference Figures 9 to 11 As another embodiment of this application, this embodiment differs from the above embodiment in that: a receiving groove is provided on the output end of the first carrier 120, and the main body portion 111 can be located in the receiving groove. The captured portion 112 can be placed on the output end of the first carrier 120, and the end face of the captured portion 112 away from the main body portion 111 is formed with a tip. When the wire feeder 110 is in the initial position, the main body portion 111 is located in the receiving groove, and the captured portion 112 is placed on the output end of the first carrier 120; when the wire feeder 110 is in the captured position, the main body portion 111 is located on the side of the capturing member 210 closer to the first carrier 120, and the captured portion 112 is located on the side of the capturing member 210 away from the first carrier 120.

[0098] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tissue suture device for using a traction suture (900) to suture an organ defect opening (1000), characterized in that, The tissue suture device includes a suturing apparatus, a support portion (400), and a delivery portion (500). The suturing apparatus is disposed on the support portion (400), and the support portion (400) is mounted on the delivery portion (500). The delivery portion (500) is used to deliver the suturing apparatus to the tissue surrounding the organ defect opening (1000). The suturing apparatus includes: A thread feeding assembly (100) is rotatably mounted on the support portion (400), and the output end of the thread feeding assembly (100) is connected to the first end of the suture thread (900). A capture assembly (200) is disposed on the carrier (400), the capture assembly (200) includes a capture member (210) for capturing the output end of the wire feeding assembly (100); The output end of the suture delivery assembly (100) has an initial position that rests inside the support portion (400) and a captured position that drives the first end of the suture (900) through the tissue surrounding the organ defect hole (1000) and is captured by the capture member (210). The wire feeding assembly (100) includes a wire feeding member (110) and a first carrier member (120), wherein the wire feeding member (110) is formed as the output end of the wire feeding assembly (100); The capture assembly (200) further includes a second carrier (220), the capture member (210) being mounted on a first end of the second carrier (220), and the second end of the second carrier (220) being rotatably disposed on the carrier portion (400); the second carrier (220) has an open position that opens toward the wire feeder (110) in the captured position, and an avoidance position that stays inside the carrier portion (400); An embedding groove is provided at the second end of the second carrier (220) for the capture member (210) to be embedded.

2. The tissue suturing device according to claim 1, characterized in that, The thread feeder (110) is detachably mounted on the first end of the first carrier (120), the second end of the first carrier (120) is rotatably disposed on the carrier (400), and the first end of the suture (900) is connected to the thread feeder (110).

3. The tissue suturing device according to claim 2, characterized in that, The wire feeder (110) includes a body part (111) and a captured part (112). The first end of the suture (900) is connected to the body part (111), and the captured part (112) is disposed on the side of the body part (111) away from the first carrier (120). The capturing member (210) is provided with a plurality of expandable capturing holes (214). The capturing holes (214) have an initial position and an expanded position for the captured part (112) to pass through. When the wire feeder (110) is in the captured position, the captured part (112) is captured by the capturing holes (214), and the capturing holes (214) are in the initial position.

4. The tissue suturing device according to claim 3, characterized in that, The first carrier (120) has a receiving groove on its output end, and the main body (111) can be located in the receiving groove; The captured portion (112) includes a first connecting section (1121), a bent section (1122), and a second connecting section (1123) connected in sequence. When the wire feeder (110) is in the initial position, the main body portion (111) is located in the receiving groove, the first connecting section (1121) is located in the receiving groove, the second connecting section (1123) is located outside the first carrier (120), and the bent section (1122) is erected on the first carrier. On the output end of the component (120); when the wire feeder (110) is in the captured position, the body part (111) is located on the side of the capturing component (210) closer to the first carrier (120), the first connecting section (1121) and the second connecting section (1123) are respectively inserted into two adjacently arranged capturing holes (214), and the bent section (1122) is located on the side of the capturing component (210) away from the first carrier (120); or, The captured portion (112) can be mounted on the output end of the first carrier (120), and the end face of the captured portion (112) away from the main body portion (111) has a pointed tip; when the wire feeder (110) is in the initial position, the main body portion (111) is located in the receiving groove, and the captured portion (112) is mounted on the output end of the first carrier (120); when the wire feeder (110) is in the captured position, the main body portion (111) is located on the side of the capture member (210) close to the first carrier (120), and the captured portion (112) is located on the side of the capture member (210) away from the first carrier (120).

5. The tissue suturing device according to claim 1, characterized in that, The suturing device further includes a first driving member (300), which is drivenly connected to the first carrier member (120) to drive the first carrier member (120) to rotate on the carrier part (400); The capture assembly (200) further includes a second drive member (230), which is driven to the second end of the second carrier member (220) to drive the second carrier member (220) to rotate on the carrier part (400).

6. The tissue suturing device according to claim 5, characterized in that, The first carrier (120) includes a carrier body (121) and a connecting post (122). The wire feeder (110) is detachably mounted on the first end of the carrier body (121), and the connecting post (122) is fixedly connected to the second end of the carrier body (121). The wire feeding assembly (100) further includes a connecting shaft (130), the axis of which is perpendicular to the length direction of the bearing part (400). The connecting shaft (130) is fixedly installed inside the bearing part (400) and passes through the connecting post (122). The connecting post (122) is rotatably mounted on the connecting shaft (130). The wire feeding assembly (100) further includes a limiting post (140), which is mounted on the connecting post (122). The axial direction of the limiting post (140) is perpendicular to the axial direction of the connecting post (122). The first driving member (300) is a driving wire (310), which is wound around the limiting post (140) at least once. The two ends of the driving wire (310) extend from opposite sides of the connecting post (122) toward the conveying part (500) away from the bearing part (400); or, The wire feeding assembly (100) further includes a limiting post (140), which is mounted on the connecting post (122). The axial direction of the limiting post (140) is perpendicular to the axial direction of the connecting post (122). The first driving member (300) is a driving wire (310), which is wound at least once on the connecting post (122) and at least once on the limiting post (140). The two ends of the driving wire (310) extend from opposite sides of the connecting post (122) toward the conveying part (500) away from the bearing part (400); or, The first driving member (300) includes a first driving rod (320) and a connecting bent rod (330). The connecting bent rod (330) is disposed between the first driving rod (320) and the connecting column (122). The first end of the connecting bent rod (330) is rotatably disposed on the end of the first driving rod (320) about a length direction perpendicular to the first driving rod (320). The second end of the connecting bent rod (330) is fixedly connected to the connecting column (122). The first driving rod (320) is slidably disposed inside the bearing part (400) along the length direction of the bearing part (400) to drive the connecting bent rod (330) to rotate about a length direction perpendicular to the first driving rod (320).

7. The tissue suturing device according to claim 5, characterized in that, The support portion (400) is provided with a rotation space (410) for the first support member (120) and the second support member (220) to rotate; the second driving member (230) is a second driving rod, and a sliding groove (420) communicating with the rotation space (410) is provided on the outer wall of the support portion (400) along the length direction of the support portion (400), and the second driving rod is slidably disposed in the sliding groove (420); The capture assembly (200) further includes a connector (240) that passes through the second end of the second carrier (220) and into the second drive rod. The connector (240) is connected to the second carrier (220) and fixedly connected to the second drive rod. The second end of the second support member (220) is provided with a first limiting groove (221), and the end of the first limiting groove (221) away from the axis of the support part (400) is inclined away from the first end of the second support member (220); the capture assembly (200) also includes a force-applying member, which passes through the first limiting groove (221) and into the support part (400), and is fixedly connected to the support part (400). The force-applying member can slide in the first limiting groove (221) along the extension direction of the first limiting groove (221); or, A second limiting groove (430) is provided on the outer side wall of the bearing part (400). The end of the second limiting groove (430) away from the axis of the bearing part (400) is inclined towards the second end of the second bearing member (220). The capture assembly (200) also includes a force-applying member. The force-applying member passes through the second limiting groove (430) and enters the second end of the second bearing member (220). The force-applying member is fixedly connected to the second bearing member (220). The force-applying member can slide in the second limiting groove (430) along the extension direction of the second limiting groove (430).

8. The tissue suturing device according to claim 6, characterized in that, The sewing device further includes a limiting pin (600), which is disposed on one side of the connecting shaft (130) and fixedly connected inside the bearing part (400). The axial direction of the limiting pin (600) is perpendicular to the length direction of the bearing part (400). When the thread feeder (110) is in the initial position, the bearing body (121) abuts against the limiting pin (600); and / or, A dividing ring (123) is fixedly sleeved on the connecting post (122). The connecting post (122) is divided into a first part and a second part by the dividing ring (123). The limiting post (140) is installed on the first part. The second carrier (220) is provided with a connecting groove (222) that is adapted to the second part. When the wire feeder (110) is in the initial position and the second carrier (220) is in the avoidance position, the second carrier (220) and the first carrier (120) are connected by the engagement of the second part with the connecting groove (222).

9. The tissue suturing device according to any one of claims 1 to 8, characterized in that, The suturing device is provided in two sets, and the two sets of suturing devices are arranged opposite each other on the support part (400) with the axis of the support part (400) as the center; and / or, The conveying part (500) is a conveying pipe, the bearing part (400) is a bearing pipe, the first end of the conveying pipe is fixedly connected to the first end of the bearing pipe, the first end of the conveying pipe is connected to the first end of the bearing pipe, and the suture (900) is inserted into the conveying pipe; The tissue suturing device also includes: TIP head (700), the TIP head (700) is fixedly connected to the second end of the carrier tube, the length direction of the TIP head (700) is parallel to the length direction of the carrier tube, and the diameter of the TIP head (700) gradually decreases from near to far from the second end of the carrier tube; A protective sleeve (800) is sleeved on the bearing pipe and at the critical point between the bearing pipe and the conveying pipe, and is fixedly connected to the bearing pipe and at the critical point between the bearing pipe and the conveying pipe.

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