Blood vessel stitching instrument

Abstract

The utility model discloses a blood vessel stitching instrument which comprises an operation assembly, a first stitching needle and an anchoring assembly, and the operation assembly is connected to the first stitching needle to drive the first stitching needle to advance or retreat. The anchoring assembly comprises a first supporting piece and a guiding piece arranged on the first supporting piece, and the first supporting piece is arranged on the side, close to the far end, of the first suture needle; the first supporting piece is connected with the operation assembly so as to be driven by the operation assembly to be unfolded and folded. The first supporting piece is provided with a first groove, the two opposite sides of the first groove are provided with a suture needle inlet and outlet and a limiting part, and the guiding piece comprises a first needle sleeve arranged in the first groove, so that in the process that the first needle sleeve is combined with the advancing first suture needle, the limiting part can limit the first needle sleeve, and the first suture needle can be separated from the first needle sleeve. The connection difficulty of the first needle sleeve and the first suture needle is reduced, and the connection reliability of the first needle sleeve and the first suture needle is improved.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and in particular relates to a vascular suture device. Background Technology

[0002] Interventional therapy is a minimally invasive treatment method that uses puncture needles, catheters, and other interventional devices, guided and monitored by imaging equipment, to deliver specific instruments to the lesion site through natural orifices or tiny incisions in the body. Taking vascular interventional medicine as an example, after creating an interventional port in the blood vessel, interventional devices are inserted through the port into the blood vessel and delivered to the lesion for treatment. After the treatment is completed, the interventional devices are retrieved and the interventional port is sutured.

[0003] A vascular suture device is a commonly used medical device in vascular surgery, primarily for the repair and anastomosis of vascular injuries. Vascular suture devices typically include a support and a guide attached to the support. During vascular suturing, the support and guide are first inserted into the blood vessel, followed by the insertion of the suture needle, which connects to the needle sheath of the guide. The guide then guides the suture needle to suture the vessel. However, during the connection between the suture needle and the needle sheath, the needle sheath tends to move towards the distal end of the vascular suture device under the influence of the suture needle, making the connection between the needle sheath and the suture needle difficult and resulting in lower reliability. Utility Model Content

[0004] This application provides a vascular suture device that reduces the difficulty of connecting the suture needle and the needle sheath during the use of the vascular suture device and improves the reliability of their connection.

[0005] On one hand, this application provides a vascular suture device, including an operating component, a first suture needle, and an anchoring component. The operating component is connected to the first suture needle and is used to drive the first suture needle forward or backward. The anchoring component includes a first support member and a guide member disposed on the first support member. The first support member is located on the side of the first suture needle near the distal end. The first support member has a first groove, one side of which has a suture needle inlet and outlet, and the opposite side has a limiting part. The guide member includes a first needle sleeve disposed in the first groove. The first support member is connected to the operating component and is used to unfold or retract under the drive of the operating component. In the unfolded state of the first support member, the first needle sleeve can engage with the forward-moving first suture needle and can dislodge from the suture needle inlet and outlet under the traction of the retracting first suture needle.

[0006] In some embodiments, in a plane perpendicular to the arrangement direction of the suture needle inlet / outlet and the limiting portion, the limiting portion protrudes from at least one side of the first needle sheath; and / or, the limiting portion has a recess on the surface facing the first needle sheath, and one end of the first needle sheath near the first limiting portion is located in the recess.

[0007] In some embodiments, the vascular suture device further includes a second suture needle, which is detachably connected to the operating component and is used to move forward or backward under the drive of the operating component; the first support member is also provided with a second groove, one side of which has a suture needle inlet and the opposite side has a suture needle outlet; the guide member further includes a second needle sleeve, which is disposed in the second groove. In the unfolded state of the first support member, the second needle sleeve can connect with the forward-moving second suture needle and can drive the second suture needle to disengage from the suture needle outlet under the traction of the retracting first suture needle.

[0008] In some embodiments, the operating component includes an operating handle and a tube body, a portion of the second suture needle is disposed within the tube body and is press-fitted with the tube body, and the operating handle is used to drive the first suture needle and the second suture needle forward or backward.

[0009] In some embodiments, the second suture needle and the second needle sheath are configured to engage with each other.

[0010] In some embodiments, the guide further includes a guide wire, one end of which is connected to the first needle sleeve and the other end of which is connected to the second needle sleeve.

[0011] In some embodiments, one end of the guide wire for connecting to the first needle sheath extends from the suture needle inlet / outlet to the outside of the first groove, and the other end of the guide wire for connecting to the second needle sheath extends from the suture needle outlet to the outside of the second groove.

[0012] In some embodiments, the first suture needle and the first needle sheath are configured to engage with each other.

[0013] In some embodiments, the first groove includes a first inner wall and a second inner wall arranged at a distance from each other, the arrangement direction of the first inner wall and the second inner wall being perpendicular to the arrangement direction of the suture needle inlet / outlet and the limiting portion, at least one of the first inner wall and the second inner wall being provided with a first recess, and a portion of the first needle sheath being located in the first recess.

[0014] In some embodiments, the vascular suture device further includes a suture thread, one end of which is connected to a first suture needle and the other end of which is connected to a second suture needle. The portion of the suture thread near the first suture needle is arranged around the outer periphery of the first suture needle to form a loop. The end of the suture thread near the second suture needle is used to pass through the loop under the traction of the first and second suture needles.

[0015] This application provides a vascular suture device, including an operating component, a first suture needle, and an anchoring component. The operating component is connected to the first suture needle, and the first suture needle can move forward or backward under the drive of the operating component. The anchoring component includes a first support member and a guide member disposed on the first support member. The first support member is located on the side of the first suture needle near its distal end. The first support member has a first groove, with a suture needle inlet / outlet on one side of the first groove and a limiting portion on the opposite side. The guide member includes a first needle sleeve disposed within the first groove and located between the suture needle inlet / outlet and the limiting portion. The first support member is connected to the operating component. When the first support member is inserted into the blood vessel, the operating component can drive the first support member to unfold, allowing the first support member to press against the inner wall of the blood vessel. After unfolding, the suture needle inlet / outlet of the first support member faces the first suture needle. At this time, the first suture needle can be driven forward by the operating component, allowing the first suture needle to move forward. The first suture needle passes through the suture needle inlet and outlet and engages with the first needle sheath. During this process, the limiting part located at the end of the first needle sheath away from the suture needle inlet and outlet can limit the first needle sheath. On the one hand, it provides support for the connection between the first needle sheath and the first suture needle, thereby reducing the difficulty of connecting the first needle sheath and the first suture needle and improving the reliability of the connection between the first needle sheath and the first suture needle. On the other hand, the setting of the limiting part can reduce the risk of the first needle sheath moving to the distal end under the action of the first suture needle and rubbing against the inner wall of the first groove. This can reduce the risk of the first needle sheath separating from the first suture needle due to frictional resistance, and help improve the reliability of the connection between the first needle sheath and the first suture needle. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a vascular suture device provided in some embodiments of this application;

[0018] Figure 2 This is a partial enlarged view of the vascular suture device provided in some embodiments of this application at the first support member;

[0019] Figure 3 This is another partial enlarged view of the vascular suture device provided in some embodiments of this application at the first support member;

[0020] Figure 4 This is a schematic diagram of the structure of the first support member of the vascular suture device provided in some embodiments of this application;

[0021] Figure 5 This is a partial enlarged view of the first support member of the vascular suture device provided in some embodiments of this application;

[0022] Figure 6 This is another partial enlarged view of the first support member of the vascular suture device provided in some embodiments of this application.

[0023] Tag name:

[0024] Operating component 100; operating handle 110; wrench 120; first suture needle 210; second suture needle 220; anchoring component 300; first support member 310; first groove 311; first inner wall 3111; second inner wall 3112; suture needle inlet / outlet 312; limiting part 313; second groove 314; third inner wall 3141; fourth inner wall 3142; suture needle inlet 315; suture needle outlet 316; support body 317; guide member 320; first needle sleeve 321; second needle sleeve 322; guide wire 323; second support member 330; guide hole 331; first recessed part K1; second recessed part K2; first direction X; second direction Y. Detailed Implementation

[0025] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0027] To address at least some of the problems of the prior art, embodiments of this application provide a vascular suture device that, by providing a limiting portion at the distal end of a first needle sheath, limits the first needle sheath, thereby reducing the difficulty of connecting the first needle sheath and the first suture needle and improving the reliability of the connection between the first needle sheath and the first suture needle. The vascular suture device will now be described in detail with reference to the accompanying drawings.

[0028] Please see Figures 1-4 On one hand, embodiments of this application provide a vascular suture device, including an operating component 100, a first suture needle 210, and an anchoring component 300. The operating component 100 is connected to the first suture needle 210 and is used to drive the first suture needle 210 forward or backward. The anchoring component 300 includes a first support member 310 and a guide member 320 disposed on the first support member 310. The first support member 310 is disposed on the side of the first suture needle 210 near the distal end. The first support member 310 is provided with a first groove 311, and one side of the first groove 311... The guide member 320 has a suture needle inlet / outlet 312 on one side and a limiting part 313 on the opposite side. The guide member 320 includes a first needle sleeve 321, which is disposed in a first groove 311. The first support member 310 is connected to the operating component 100 and is used to unfold or retract under the drive of the operating component 100. In the unfolded state of the first support member 310, the first needle sleeve 321 can engage with the first suture needle 210 after it has moved forward, and can be pulled out from the suture needle inlet / outlet 312 under the pull of the first suture needle 210 after it has moved backward.

[0029] In this embodiment, the position of the vascular suture device closer to the operator is defined as the proximal end of the vascular suture device, and the position of the vascular suture device farther from the operator is defined as the distal end of the vascular suture device. Driven by the operating component 100, the first suture needle 210 can advance from the proximal end to the distal end and retract from the distal end to the proximal end. For ease of understanding, in this embodiment, the directions of the first suture needle 210's advance and retraction are defined as the first direction X.

[0030] The operating component 100 is used to drive structures such as the first suture needle 210 and the anchoring component 300.

[0031] In some embodiments, the operating component 100 may include an automated drive structure such as a robotic arm.

[0032] In other embodiments, the operating component 100 may also be driven by a mechanical drive. Optionally, such as Figure 1 As shown, the operating component 100 may include an operating handle 110 and a wrench 120. The operating handle 110 can be used to drive the first suture needle 210 forward or backward along the first direction X, and the wrench 120 can be used to drive the first support member 310 to unfold or retract.

[0033] The first suture needle 210 can be connected to the operating component 100, and can move forward or backward along the first direction X under the drive of the operating component 100 to suture the blood vessel.

[0034] The anchoring assembly 300 includes a first support member 310 and a guide member 320, with the guide member 320 disposed on the first support member 310. Both are located on the side of the first suture needle 210 near the distal end. When suturing a blood vessel is required, the first support member 310 and the corresponding guide member 320, which are in a retracted state, can be inserted into the blood vessel through the wound. Subsequently, the first support member 310 is unfolded by the operating assembly 100. The unfolded first support member 310 can press against the inner wall of the blood vessel near the wound, providing support for subsequent suturing operations.

[0035] It should be noted that, in the embodiments of this application, the unfolding and retraction of the first support member 310 are relative to the wound area of ​​the blood vessel. Within the supporting surface of the first support member 310 on the blood vessel wall, the cross-sectional area of ​​the first support member 310 in the unfolded state is larger than the wound area of ​​the blood vessel, and it can protrude to the side relative to the wound of the blood vessel to press against the inner wall of the blood vessel. The cross-sectional area of ​​the first support member 310 in the retracted state is smaller than the wound area of ​​the blood vessel. Therefore, the first support member 310 in the retracted state can enter the blood vessel through the wound without causing further damage to the wound.

[0036] There are several ways in which the first support member 310 can be deployed or retracted. For example, the first support member 310 can rotate around an axis driven by the operating component 100, and this axis can be approximately perpendicular to the first direction X. During the rotation, the first support member 310 can be deployed and retracted. In addition, the first support member 310 can also be other rigid structures capable of deployment and retraction, and this embodiment does not limit this.

[0037] The first support member 310 is provided with a first groove 311, and the first groove 311 is provided with a suture needle inlet / outlet 312. The guide member 320 includes a first needle sleeve 321, which is disposed in the first groove 311, and the portion of the first needle sleeve 321 for connecting with the first suture needle 210 is located near the suture needle inlet / outlet 312. When the first support member 310 is inserted into the blood vessel and unfolded under the drive of the operating component 100, the suture needle inlet / outlet 312 and the portion of the first needle sleeve 321 for connecting with the first suture needle 210 are both facing the first suture needle 210. Under the drive of the operating component 100, the first suture needle 210 can advance along the first direction X. After passing through the blood vessel wall, the first suture needle 210 can move through the suture needle inlet / outlet 312 to engage with the first needle sleeve 321. Furthermore, after the first suture needle 210 is connected to the first needle sheath 321, the operating component 100 can drive the first suture needle 210 to retract and drive the guide 320, including the first needle sheath 321, to disengage from the suture needle inlet / outlet 312 out of the first groove 311 and retract to outside the blood vessel.

[0038] During the connection process between the first suture needle 210 and the first needle sheath 321, the thrust applied by the operating component 100 to the first suture needle 210 will be transmitted to the first needle sheath 321 to a certain extent. The first needle sheath 321 will move towards the distal end under the push of the first suture needle 210. On the one hand, this makes it difficult for the first suture needle 210 to connect with the first needle sheath 321 quickly and effectively. On the other hand, when the first needle sheath 321 moves towards the distal end, it is easy to generate friction with the inner wall of the first groove 311. The frictional resistance is easy to hinder the movement of the first needle sheath 321 when the first suture needle 210 drives the first needle sheath 321 back to the outside of the blood vessel, thereby causing the first suture needle 210 and the first needle sheath 321 to separate, affecting the reliability of their connection.

[0039] In view of this, the present application provides a vascular suture device, wherein the first groove 311 is further provided with a limiting part 313, the limiting part 313 is arranged at a distance from the suture needle inlet and outlet 312, and the first needle sleeve 321 is located between the suture needle inlet and outlet 312 and the limiting part 313. During the process of the first suture needle 210 and the first needle sleeve 321 being combined, the limiting part 313 can press against the side of the first needle sleeve 321 near the distal end along the first direction X to limit the first needle sleeve 321. On the one hand, it provides support for the connection between the first needle sleeve 321 and the first suture needle 210, reduces the difficulty of connecting the first needle sleeve 321 and the first suture needle 210, and improves the reliability of the connection between the first needle sleeve 321 and the first suture needle 210. On the other hand, the setting of the limiting part 313 can reduce the risk of the first needle sleeve 321 moving towards the distal end under the action of the first suture needle 210 and rubbing against the inner wall of the first groove 311. This can avoid the situation where the first needle sleeve 321 and the first suture needle 210 separate due to the action of frictional resistance, which helps to further improve the reliability of the connection between the first needle sleeve 321 and the first suture needle 210.

[0040] In some embodiments, in a plane perpendicular to the arrangement direction of the suture needle inlet / outlet 312 and the limiting portion 313, the limiting portion 313 protrudes from at least one side of the first needle sheath 321, which helps to increase the structural strength of the limiting portion 313 and its limiting effect on the first needle sheath 321.

[0041] It should be noted that, in the unfolded state of the first support member 310, the arrangement direction of the suture needle inlet / outlet 312 and the limiting part 313 can be parallel to the first direction X. In the retracted state of the first support member 310, the arrangement direction of the suture needle inlet / outlet 312 and the limiting part 313 can intersect or be perpendicular to the first direction X.

[0042] In some embodiments, the limiting portion 313 has a recess on its surface facing the first needle sleeve 321, and one end of the first needle sleeve 321 near the limiting portion 313 is located inside the recess. The inner wall of the recess can limit the first needle sleeve 321, thereby reducing the risk of the first needle sleeve 321 moving in a plane perpendicular to the arrangement direction of the suture needle inlet / outlet 312 and the limiting portion 313.

[0043] Please see Figures 2-4In some embodiments, the vascular suture device further includes a second suture needle 220, which is detachably connected to the operating component 100 and is used to move forward or backward under the drive of the operating component 100; the first support member 310 is also provided with a second groove 314, one side of which is provided with a suture needle inlet 315, and the opposite side is provided with a suture needle outlet 316; the guide member 320 further includes a second needle sleeve 322, which is disposed in the second groove 314. In the unfolded state of the first support member 310, the second needle sleeve 322 can engage with the forward-moving second suture needle 220, and can drive the second suture needle 220 out of the suture needle outlet 316 under the traction of the retracting first suture needle 210.

[0044] In this embodiment of the application, for ease of understanding, the direction of the second suture needle 220 moving forward and backward is defined as the second direction Y. The second direction Y may be parallel to the first direction X, or the second direction Y may intersect with the first direction X and the included angle is an acute angle.

[0045] Specifically, the vascular suture device also includes a second suture needle 220, which can be connected to the operating component 100 and can move along the second direction Y under the drive of the operating component 100 to intervene in or remove the blood vessel.

[0046] The first support member 310 also has a second groove 314, which may have a suture needle inlet 315 and a suture needle outlet 316 arranged at relatively intervals. The guide member 320 also includes a second needle sleeve 322, which is disposed in the second groove 314 and located between the suture needle inlet 315 and the suture needle outlet 316. The part of the second needle sleeve 322 for connecting with the second suture needle 220 may be disposed close to the suture needle inlet 315. When the first support member 310 is deployed in the blood vessel, the suture needle inlet 315 and the part of the second needle sleeve 322 for connecting with the second suture needle 220 are both facing the second suture needle 220. Under the drive of the operating component 100, the second suture needle 220 can advance along the second direction Y. After passing through the blood vessel wall, the second suture needle 220 can enter the second groove 314 through the suture needle inlet 315 and connect with the second needle sleeve 322.

[0047] It should be noted that before the first suture needle 210 is connected to the first needle sheath 321 and the second suture needle 220 is connected to the second needle sheath 322, the first suture needle 210 and the second suture needle 220 can advance synchronously under the drive of the operating component 100. After the second suture needle 220 is connected to the second needle sheath 322, the second suture needle 220 is separated from the operating component 100. The operating component 100 drives the first suture needle 210 to retract, and drives the guide 320 to exit from the suture needle inlet 312 and out of the first groove 311, and back to the outside of the blood vessel. During this process, the first suture needle 210 can drive the second suture needle 220 through the guide 320, so that it moves out of the second groove 314 from the suture needle outlet 316 and out of the blood vessel from the blood vessel inlet of the first suture needle 210.

[0048] It is important to understand that during the advancement of the first suture needle 210 and the second suture needle 220, the first suture needle 210 and the second suture needle 220 can be located on opposite sides of an axis, which can be parallel to the arrangement direction of the distal and proximal ends. The vascular inlets of the first suture needle 210 and the second suture needle 220 can be located on opposite sides of the vascular wound, and the aforementioned axis is equivalent to passing through the vascular wound. The first suture needle 210 and the second suture needle 220 can be connected to the two ends of the suture. During the process of the second suture needle 220 entering the blood vessel and exiting the blood vessel from the vascular inlet of the first suture needle 210, one end of the suture can be driven by the second suture needle 220 to enter the blood vessel from the vascular inlet of the second suture needle 220 and exit the blood vessel from the vascular inlet of the first suture needle 210. Subsequently, the two ends of the suture are tied to achieve suturing of the vascular wound.

[0049] It should be clarified that there are multiple ways in which the second suture needle 220 can be detachably connected to the operating component 100. For example, the second suture needle 220 can be snapped into the operating component 100, or the second suture needle 220 can be magnetically connected to the operating component 100. This embodiment does not limit this.

[0050] In some embodiments, the operating component 100 includes an operating handle 110 and a tube body, a portion of the second suture needle 220 is disposed in the tube body and is press-fitted with the tube body, and the operating handle 110 is used to drive the first suture needle 210 and the second suture needle 220 forward or backward.

[0051] The operating handle can be used to drive the first suture needle 210 and the second suture needle 220, causing them to move forward or backward. A portion of the second suture needle 220 is disposed within the tube body and is interference-fitted with the tube body, thereby connecting the second suture needle 220 to the tube body. Under the drive of the operating handle, the first suture needle 210 and the second suture needle 220 can move forward synchronously until the first suture needle 210 is connected to the first needle sleeve 321 and the second suture needle 220 is connected to the second needle sleeve 322.

[0052] Furthermore, the operating handle 110 can also be used to drive the second suture needle 220 to separate from the tube body. For example, the operating handle 110 can drive the second suture needle 220 to disengage from the suture needle outlet 316 and the second groove 314 through the first suture needle 210 and the guide 320. During the process of the second suture needle 220 disengaging from the second groove 314, the second suture needle 220 can separate from the tube body.

[0053] Alternatively, the operating handle 110 may include a pusher disposed within the tube body, which pushes the second suture needle 220 out of the tube body to separate it from the tube body.

[0054] In some alternative embodiments, the tube body may include a first tube body and a second tube body. A first suture needle 210 may be disposed in the first tube body to protect the first suture needle 210 through the first tube body. A portion of a second suture needle 220 may be disposed in the second tube body and interference-fitted with the second tube body.

[0055] In some embodiments, the second suture needle 220 and the second needle sheath 322 are configured to engage with each other. Exemplarily, the second suture needle 220 may have a first latching portion and a second latching portion. The first latching portion can be engaged into the second latching portion under the action of external force, thereby achieving the engagement between the two and helping to reduce the difficulty of connecting the second suture needle 220 and the second needle sheath 322.

[0056] Please continue reading. Figure 2 and Figure 3 In some embodiments, the guide 320 further includes a guide wire 323, one end of which is connected to the first needle sleeve 321 and the other end is connected to the second needle sleeve 322.

[0057] When the second suture needle 220 is connected to the second needle sheath 322 and separated from the operating component 100, the operating component 100 drives the first suture needle 210 and the first needle sheath 321 to retract outside the blood vessel. The first needle sheath 321 can drive the second needle sheath 322 and the second suture needle 220 connected to the second needle sheath 322 to move through the guide wire 323, so that the second suture needle 220 can be moved out of the blood vessel from the blood vessel entrance of the first suture needle 210, and the suture can be sutured on the blood vessel wound under the drive of the second suture needle 220.

[0058] In these embodiments, the first needle sheath 321 and the second needle sheath 322 are connected by a guide wire 323. The flexible guide wire 323 helps to reduce its impact on the inner wall of the blood vessel and the blood, and at the same time helps to reduce the risk of interference between it and structures such as the first support member 310 inside the blood vessel.

[0059] In some embodiments, the end of the guide wire 323 that is connected to the first needle sleeve 321 extends from the suture needle inlet / outlet 312 to the outside of the first groove 311, and the end of the guide wire 323 that is connected to the second needle sleeve 322 extends from the suture needle outlet 316 to the outside of the second groove 314.

[0060] During the process of the first suture needle 210 retracting the first needle sheath 321 outside the blood vessel, the guide wire 323 can be moved out of the first groove 311 from the suture needle inlet / outlet 312 under the action of the first needle sheath 321, without having to pass through the limiting part 313. This reduces the risk of the guide wire 323 becoming entangled or rubbing against the first support member 310. At the same time, under the action of the first suture needle 210, the end of the guide wire 323 used to connect with the second needle sheath 322 can drive the second needle sheath 322 and the second suture needle 220 out of the second groove 314 from the suture needle outlet 316.

[0061] It is known that after the first needle sheath 321 is removed from the first groove 311, the guide wire 323 can drive the second needle sheath 322 and the corresponding second suture needle to move outside the first groove 311. That is, the second needle sheath 322 and the second suture needle 220 do not need to pass through the second groove 314 during the process of moving out of the blood vessel under the drive of the guide wire 323. Therefore, they will not interfere with the inner wall of the second groove 314 and the limiting part 313 and other structures. This can reduce the risk of separation or breakage of the second needle sheath 322 and the second suture needle 220 in the blood vessel, so as to suture the blood vessel wound more smoothly.

[0062] Optionally, the portion of the guide wire 323 near the first needle sheath 321 may extend from one side wall of the first needle sheath 321, through the side of the first needle sheath 321 toward the limiting portion 313, to the opposite side wall of the first needle sheath 321, and extend from the suture needle inlet / outlet 312 to the outside of the first groove 311 at the opposite side wall. In other words, the portion of the guide wire 323 near the first needle sheath 321 may wrap around a portion of the first needle sheath 321 from the side of the first needle sheath 321 near the limiting portion 313.

[0063] In some embodiments, the first suture needle 210 and the first needle sheath 321 are configured to engage with each other. Exemplarily, the first suture needle 210 may have a third latching portion and a fourth latching portion. The third latching portion can be engaged into the fourth latching portion under external force, thereby achieving the engagement between the two and helping to reduce the difficulty of connecting the first suture needle 210 and the first needle sheath 321.

[0064] Please see Figure 5In some embodiments, the first groove 311 includes a first inner wall 3111 and a second inner wall 3112 arranged at relatively intervals. The arrangement direction of the first inner wall 3111 and the second inner wall 3112 is perpendicular to the arrangement direction of the suture needle inlet / outlet 312 and the limiting part 313. At least one of the first inner wall 3111 and the second inner wall 3112 is provided with a first recess K1, and a portion of the first needle sleeve 321 is located in the first recess K1.

[0065] Specifically, when the first needle sheath 321 is located within the first groove 311, the suture needle inlet / outlet 312 and the limiting portion 313 are located on opposite sides of the first needle sheath 321. The first inner wall 3111 and the second inner wall 3112 can be located on the other opposite sides of the first needle sheath 321. The first inner wall 3111 and the second inner wall 3112 can clamp the first needle sheath 321 to a certain extent, thereby limiting the first needle sheath 321 and reducing the risk of the first needle sheath 321 shifting before being connected to the first suture needle 210. This helps to increase the difficulty of connecting the first needle sheath 321 and the first suture needle 210. Based on this, at least one of the first inner wall 3111 and the second inner wall 3112 is provided with a first recessed portion K1. A portion of the first needle sheath 321 is located in the first recessed portion K1, so that the first needle sheath 321 is limited by the first recessed portion K1, thereby further improving the stability of the first needle sheath 321 and further increasing the difficulty of connecting the first needle sheath 321 and the first suture needle 210.

[0066] Please see Figure 6 In some embodiments, the second groove 314 includes a third inner wall 3141 and a fourth inner wall 3142 disposed opposite to each other. The arrangement direction of the third inner wall 3141 and the fourth inner wall 3142 may be perpendicular to the arrangement direction of the suture needle inlet 315 and the suture needle outlet 316. At least one of the third inner wall 3141 and the fourth inner wall 3142 is provided with a second recess K2, and a portion of the second needle sleeve 322 is located in the second recess K2. The third inner wall 3141, the fourth inner wall 3142, and the second recess K2 can limit the second needle sleeve 322 to a certain extent, thereby reducing the risk of the second needle sleeve 322 shifting before being connected to the second suture needle 220, and helping to increase the difficulty of connecting the second needle sleeve 322 and the second suture needle 220.

[0067] Please continue reading. Figure 2 and Figure 4 In some embodiments, the anchoring component 300 further includes a second support 330. The first support 310 includes a support body 317 and a rotating shaft. The support body 317 is rotatably connected to the second support 330 via the rotating shaft. The extension direction of the rotating shaft is approximately perpendicular to the first direction X. The operating component 100 is connected to the support body 317 and is used to drive the support body 317 to rotate relative to the rotating shaft.

[0068] Specifically, the support body 317 may be provided with the aforementioned first groove 311 and second groove 314. In the unfolded state, the extension direction of the support body 317 intersects with the first direction X; in the retracted state, the extension direction of the support body 317 may be approximately parallel to the first direction X. The support body 317 is rotatably connected to the second support member 330 via a pivot. By driving the support body 317 to rotate relative to the pivot through the operating component 100, the support body 317 can be switched between the unfolded and retracted states. The structure is simple and the operation is convenient.

[0069] It is known that at least a portion of the second support 330 can be inserted into the blood vessel through the vascular wound to support the first support 310.

[0070] Optionally, the operating component 100 can be disposed on the second support member 330. The second support member 330 can support and fix the operating component 100. During the vascular suturing process, a part of the second support member 330 can be located inside the blood vessel to support and fix the first support member 310 and other structures. Another part of the second support member 330 can be located outside the blood vessel to support the operating component 100 and other structures.

[0071] Optionally, the operating component 100 may extend from inside the second support 330 to connect with the support body 317 of the first support 310, thereby reducing the contact between the operating component 100 and the blood in the blood vessel.

[0072] Optionally, when the operating component 100 includes an operating handle 110 and a tube, at least a portion of the tube may be located within the second support 330 to support and protect at least a portion of the tube by means of the second support 330.

[0073] Please continue reading. Figure 2 and Figure 4 In some embodiments, the second support 330 is provided with a guide hole 331, which is located on the side of the first support 310 near the distal end. The guide 320 passes through the guide hole 331. The guide hole 331 guides the guide 320 as it moves with the first suture needle 210, thereby reducing the risk of interference between the guide 320 and other structures within the blood vessel.

[0074] It should be noted that the guide wire 323 of the guide member 320 can be passed through the guide hole 331. The inner wall of the guide hole 331 can support and guide the guide wire 323, thereby improving the stability of the guide wire 323.

[0075] Optionally, a notch may be provided on one side of the guide hole 331, through which the guide wire 323 can enter or exit the guide hole 331 to facilitate the assembly and disassembly of the guide wire 323.

[0076] In some embodiments, the vascular suture device further includes a suture thread, one end of which is connected to a first suture needle 210 and the other end of which is connected to a second suture needle 220. The portion of the suture thread near the first suture needle 210 is arranged around the outer periphery of the first suture needle 210 to form a loop. The end of the suture thread near the second suture needle 220 is used to pass through the loop under the traction of the first suture needle 210 and the second suture needle 220.

[0077] Specifically, during the process of the operating component 100 driving the first suture needle 210 and guide 320 to disengage from the first groove 311 and remove the blood vessel from the suture needle inlet 312, the second suture needle 220, driven by the first suture needle 210 and guide 320, can be removed from the blood vessel inlet of the first suture needle 210. After removing the blood vessel, the second suture needle 220 can pass through the coil that originally surrounded the first suture needle 210. The end of the suture near the second suture needle 220 can pass through the coil under the drive of the second suture needle 220, and then the coil is locked, thus realizing the knotting operation of the suture.

[0078] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A vascular suture device, characterized in that, include: First suture needle; An operating component, connected to the first suture needle, is used to drive the first suture needle forward or backward; An anchoring assembly includes a first support member and a guide member disposed on the first support member. The first support member is located on the side of the first suture needle near its distal end. The first support member has a first groove, one side of which has a suture needle inlet and outlet, and the opposite side has a limiting portion. The guide member includes a first needle sleeve disposed within the first groove. The first support member is connected to the operating component and is used to unfold or retract under the drive of the operating component. In the unfolded state of the first support member, the first needle sleeve can engage with the first suture needle after it has moved forward, and can be pulled out from the suture needle inlet and outlet under the traction of the first suture needle after it has moved backward.

2. The vascular suture device according to claim 1, characterized in that, In a plane perpendicular to the arrangement direction of the suture needle inlet / outlet and the limiting portion, the limiting portion protrudes from at least one side relative to the first needle sheath; and / or, The limiting part has a recess on the surface facing the first needle sleeve, and one end of the first needle sleeve near the limiting part is located in the recess.

3. The vascular suture device according to claim 1, characterized in that, The vascular suture device also includes a second suture needle, which is detachably connected to the operating component and is used to move forward or backward under the drive of the operating component. The first support member is also provided with a second groove, one side of which is provided with a suture needle inlet and the opposite side is provided with a suture needle outlet; The guide also includes a second needle sleeve, which is disposed in the second groove. When the first support is in the unfolded state, the second needle sleeve can engage with the second suture needle after it has moved forward, and can drive the second suture needle out of the suture needle outlet under the traction of the first suture needle as it moves backward.

4. The vascular suture device according to claim 3, characterized in that, The operating component includes an operating handle and a tube body. A portion of the second suture needle is disposed within the tube body and is press-fitted with the tube body. The operating handle is used to drive the first suture needle and the second suture needle forward or backward.

5. The vascular suture device according to claim 3, characterized in that, The second suture needle and the second needle sheath are configured to interlock.

6. The vascular suture device according to claim 3, characterized in that, The guide also includes a guide wire, one end of which is connected to the first needle sleeve and the other end of which is connected to the second needle sleeve.

7. The vascular suture device according to claim 6, characterized in that, One end of the guide wire, which is used to connect with the first needle sleeve, extends from the suture needle inlet and outlet to the outside of the first groove, and the other end of the guide wire, which is used to connect with the second needle sleeve, extends from the suture needle outlet to the outside of the second groove.

8. The vascular suture device according to any one of claims 1-7, characterized in that, The first suture needle and the first needle sheath are configured to engage with each other.

9. The vascular suture device according to any one of claims 1-7, characterized in that, The first groove includes a first inner wall and a second inner wall arranged at a relative interval, the arrangement direction of the first inner wall and the second inner wall being perpendicular to the arrangement direction of the suture needle inlet / outlet and the limiting part. At least one of the first inner wall and the second inner wall is provided with a first recess, and a portion of the first needle sheath is located in the first recess.

10. The vascular suture device according to any one of claims 3-7, characterized in that, The vascular suture device also includes a suture thread, one end of which is connected to the first suture needle and the other end of which is connected to the second suture needle. The portion of the suture near the first suture needle is arranged around the outer periphery of the first suture needle to form a loop, and one end of the suture near the second suture needle is used to pass through the loop under the traction of the first suture needle and the second suture needle.

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