A suturing device

Abstract

The present application relates to a kind of suturing device.The suturing device includes: base, base is provided with first passage, second passage and third passage through its length direction;Suture needle assembly, suture needle assembly includes suture needle, suture needle is U-shaped, one end of U-shaped is in first passage, the other end is pointed and opposite to third passage, suture needle assembly can be extended relative to base;Tissue acquisition assembly, tissue acquisition assembly is in second passage and can be extended relative to base, tissue acquisition assembly is configured to grasp or release the human tissue to be sutured;Suture assembly, suture assembly includes suture and suture joint connected with suture, suture joint includes first end and second end, first end is used for with suture needle detachable insertion;And needle joint assembly, needle joint assembly is set in third passage and can be extended relative to base, needle joint assembly is configured to fix or loosen the second end of suture joint.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a suturing device. Background Technology

[0002] Bariatric surgery has been proven to be a more effective method for obesity management than diet, exercise, and medication. Currently commonly used procedures include gastric bypass, sleeve gastrectomy, and adjustable gastric banding.

[0003] In bariatric surgery, suturing human tissue is often required. Therefore, a simple and effective suturing device is needed. This suturing device can complete tissue suturing with minimal trauma.

[0004] However, current suturing devices are complex in structure and cumbersome to operate, which is not conducive to improving suturing efficiency and thus affects the surgical experience of personnel. Summary of the Invention

[0005] This application provides a suturing device to improve suturing efficiency and thus enhance the surgical experience.

[0006] The suturing device includes: a base having a first channel, a second channel, and a third channel extending along its length; a suture needle assembly including a U-shaped suture needle, one end of which is located in the first channel and the other end is pointed and opposite the third channel, the suture needle assembly being telescopic relative to the base; a tissue acquisition assembly located in the second channel and telescopic relative to the base, the tissue acquisition assembly being configured to grasp or release human tissue to be sutured; a suture assembly including a suture thread and a suture connector connected to the suture thread, the suture connector including a first end and a second end, the first end being for detachable insertion with the suture needle; and a needle receiving assembly located in the third channel and telescopic relative to the base, the needle receiving assembly being configured to fix or release the second end of the suture connector.

[0007] The suturing device of this application embodiment has a simple structure. Through the cooperation of the needle receiving assembly and the suturing needle assembly, it can complete the process of single suturing and continuous multiple suturing, thereby improving the convenience and efficiency of suturing operation and thus improving the surgical experience of the personnel.

[0008] In some embodiments, the needle assembly includes a sleeve extending along the third channel, a retaining buckle disposed within the sleeve, and a long rod connected to the retaining buckle. The sleeve is slidable relative to the retaining buckle, and the retaining buckle is radially provided with an outwardly raised compression flap. The retaining buckle is used to insert into the second end of the suture connector.

[0009] In some embodiments, the outer surface of the second end is provided with a circumferential groove, and the end of the extrusion flap is provided with a protrusion adapted to the circumferential groove.

[0010] In some embodiments, the long rod includes a third end and a fourth end opposite to each other in its length direction, the third end being located inside the limiting buckle, and the fourth end extending out of the limiting buckle on the side opposite to the suture needle;

[0011] When the second end of the suture connector is inserted into the limiting buckle, the end of the second end contacts the end of the third end.

[0012] In some embodiments, the needle assembly further includes a protective tube sleeved over the sheath and a protective head connected to one end of the protective tube near the suture needle. The protective head has a hollow structure and is also connected to the limiting buckle.

[0013] In some embodiments, the first end of the suture connector is provided with a slot, the slot having elasticity for inward and outward contraction and expansion, and the suture needle is interference-fitted into the slot.

[0014] In some embodiments, one end of the suture is connected to the suture connector, and the other end extends through the third channel out of the base from the side opposite to the suture needle.

[0015] In some embodiments, the second end of the suture connector is pointed.

[0016] In some embodiments, the tissue acquisition component includes a gripper head fixing portion disposed in the second channel and a gripper head connected to the gripper head fixing portion, wherein the end of the gripper head near the suture needle is spiral-shaped.

[0017] In some embodiments, the suture needle assembly further includes a wire, one end of which is connected to a portion of the suture needle located in the first channel, and the other end of which extends through the first channel out of the base from the side opposite to the suture needle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the suturing device according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the suture assembly according to an embodiment of this application;

[0020] Figure 3 for Figure 1 Right side view of the suture device shown;

[0021] Figure 4This is a schematic diagram of the suturing device for grasping human tissue according to an embodiment of this application;

[0022] Figure 5 This is a schematic diagram of the suture device for puncturing human tissue according to an embodiment of this application;

[0023] Figure 6 This is a schematic diagram of the suture connector receiving the suture needle according to an embodiment of this application;

[0024] Figure 7 This is a schematic diagram of the structure of the needle assembly detached from the suture connector in an embodiment of this application;

[0025] Figure 8 This is a schematic diagram of the structure in an embodiment of this application, showing the suture needle retracting and the suture thread passing through human tissue.

[0026] Figure 9 This is a schematic diagram of the suturing device for releasing human tissue according to an embodiment of this application;

[0027] Figure 10 This is a schematic diagram of the structure of the needle assembly receiving the suture connector according to an embodiment of this application;

[0028] Figure 11 This is a schematic diagram illustrating the separation of the suture connector and the suture needle in an embodiment of this application.

[0029] Figure 12 This is a schematic diagram of the suturing device after a single suturing operation according to an embodiment of this application;

[0030] Figure 13 This is an exploded view of the needle assembly and suture assembly according to an embodiment of this application;

[0031] Figure 14 This is an assembly diagram of the needle assembly and the suture assembly according to an embodiment of this application.

[0032] The attached figures are labeled as follows:

[0033] 100-Suture device;

[0034] 110 - Base; 111 - First Channel; 112 - Second Channel; 113 - Third Channel;

[0035] 120 - Suture needle assembly; 121 - Suture needle;

[0036] 130 - Organization acquisition component; 131 - Gripper head fixing part; 132 - Gripper head;

[0037] 140 - Thread assembly; 141 - Thread; 142 - Thread connector; 1421 - First end; 1422 - Second end; 1423 - Circumferential groove; 1424 - Slot;

[0038] 150 - Pin assembly; 151 - Sleeve; 152 - Limiting buckle; 153 - Long rod; 1521 - Compression flap; 1522 - Protrusion; 1531 - Third end; 1532 - Fourth end; 154 - Protective tube; 155 - Protective head;

[0039] A - Human tissue. Detailed Implementation

[0040] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0042] 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 at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0046] like Figure 1 As shown in the illustration, this application proposes a suturing apparatus 100, including a base 110, a suture needle assembly 120, a tissue acquisition assembly 130, a suture assembly 140, and a needle receiving assembly 150. The base 110 is provided with a first channel 111, a second channel 112, and a third channel 113 extending along its length. The suture needle assembly 120 includes a suture needle 121, which is U-shaped, with one end of the U-shape located in the first channel 111 and the other end pointed and opposite the third channel 113. The suture needle assembly 120 is telescopic relative to the base 110. The tissue acquisition assembly 130 is located in the second channel 112 and is telescopic relative to the base 110. The tissue acquisition assembly 130 is configured to grasp or release human tissue A to be sutured. Figure 2 As shown, the suture assembly 140 includes a suture 141 and a suture connector 142 connected to the suture 141. The suture connector 142 includes a first end 1421 and a second end 1422, the first end 1421 being for detachable insertion with a suture needle 121. A needle receiving assembly 150 is disposed in a third channel 113 and is telescopic relative to the base 110, the needle receiving assembly 150 being configured to secure or release the second end 1422 of the suture connector 142.

[0047] This application proposes a simple and convenient suturing device 100. The suturing device 100 includes a base 110, a suture needle assembly 120, a tissue acquisition assembly 130, a suture assembly 140, and a needle receiving assembly 150. The base 110 is the main body of the suturing device 100. The suture needle assembly 120 is disposed in a first channel 111 and is retractable relative to the base 110. Simultaneously, the tip of the suture needle 121 faces a third channel 113, in which the needle receiving assembly 150 is also disposed. That is, when the suture needle assembly 120 extends relative to the base 110, the tip of the suture needle 121 moves away from the needle receiving assembly 150 in the third channel 113; when the suture needle assembly 120 retracts relative to the base 110, the tip of the suture needle 121 moves closer to the needle receiving assembly 150 in the third channel 113. In this context, elongation refers to the linear movement of the suture needle assembly 120 relative to the base 110 in the direction from the base 110 to the suture needle 121, and retraction refers to the linear movement of the suture needle assembly 120 relative to the base 110 in the direction from the suture needle 121 to the base 110. The direction from the base 110 to the suture needle 121 is defined as the X direction.

[0048] The tissue acquisition component 130 refers to a component that acquires or releases human tissue. Various acquisition methods are available, such as vacuum adsorption and physical grasping, which are not limited in this application. The tissue acquisition component 130's telescopic capability relative to the base 110 means that it can extend or retract relative to the base 110. When the tissue acquisition component 130 extends relative to the base 110, it can contact the distant human tissue A to be sutured; when the tissue acquisition component 130 retracts relative to the base, it can bring the distant human tissue A to the suture position. Extension refers to the tissue acquisition component 130 moving linearly in the X direction relative to the base 110, and retraction refers to the suture needle component 120 moving linearly in the opposite direction of the X direction relative to the base 110. The suture position refers to the location where the suture needle performs tissue puncture. For example, this position can be along the movement path of the tip of the suture needle 121 when the suture needle component 120 extends or retracts relative to the base 110. In this way, the suture needle 121 can puncture the human tissue grasped by the tissue acquisition component 130.

[0049] It is easy to understand that, since the suture needle 121 moves in a linear motion, and the tissue acquisition component 130 also moves in a linear motion, to avoid the tissue acquisition component 130 being obstructed by the suture needle 121 when grasping human tissue at a distance, such as... Figure 3 As shown, the suture needle 121 can be obliquely positioned in the vertical direction. This way, the tissue acquisition component 130 is located in the second channel 112, and its extension is not obstructed by the suture needle 121. Simultaneously, the tip of the suture needle 121 is also opposite to the third channel 113 for suturing human tissue A.

[0050] The suture assembly 140 includes a suture 141 and a suture connector 142 connected to the suture 141. A first end 1421 of the suture connector 142 is detachably inserted into a suture needle 121. Simultaneously, a needle receiving assembly 150 is configured to fix or release the second end 1422 of the suture connector 142. In this way, the suture connector 142 can continuously switch positions between the needle receiving assembly 150 and the suture needle 121, thereby achieving suturing of human tissue A.

[0051] Specifically, the suturing process of the suturing device 100 of this application is as follows: First, as Figure 1 and Figure 4 As shown, the tissue acquisition component 130 remotely grasps the human tissue A to be sutured and moves it to the suture position. The second end 1422 of the suture connector 142 is connected to the needle receiving component 150, while the first end 1421 is not inserted into the suture needle 121. The suture 141 is connected to the suture connector 142. Then, as... Figure 5 As shown, the suture needle assembly 120 retracts relative to the base 110, and the retraction path of the suture needle 121 passes through human tissue A. Then, as... Figure 6 As shown, after the suture needle 121 passes through human tissue A, the needle receiving assembly 150 is extended relative to the base 110 so that the suture connector 142 fixed to the needle receiving assembly 150 is inserted into the suture needle 121. At this time, the needle receiving assembly 150 is configured to loosen the second end 1422 of the suture connector 142. Next, as... Figure 7 and Figure 8 As shown, the needle assembly 150 retracts relative to the base 110, and the suture needle assembly 120 extends relative to the base 110, i.e., moves in the opposite direction. Since the suture connector 142 is inserted into the suture needle 121, and the needle assembly 150 is configured to release the second end 1422 of the suture connector 142, the suture connector 142 separates from the needle assembly 150 and connects to the suture needle 121, thus moving in the opposite direction synchronously with the suture needle 121. In this way, the suture 141 passes through the human tissue A as it moves with the suture connector 142. Finally, after the suture 141 has passed through the human tissue A, the tissue acquisition assembly 130 releases the human tissue A, thus completing one suturing process.

[0052] Furthermore, the continuous suturing process of the suturing device 100 of this application is as follows: after performing the above-mentioned single suturing, if... Figure 9 As shown, the suture needle assembly 120 retracts relative to the base 110, as... Figure 10 As shown, the needle assembly 150 is extended relative to the base 110 so that the suture connector 142 fixed to the suture needle 121 is inserted into the needle assembly 150. At this time, the needle assembly 150 is configured to fix the second end 1422 of the suture connector 142. Then, as... Figure 11As shown, the pin assembly 150 is retracted relative to the base 110, as... Figure 12 As shown, the suture needle assembly 120 is extended relative to the base 110. Thus, the suture device 100 returns to its original position. Figure 1 The image shows the state before a single suture. Finally, by repeating the single suture steps described above, continuous sutures can be achieved using this suture device 100.

[0053] The suturing device 100 of this application embodiment has a simple structure. Through the cooperation of the needle receiving assembly 150 and the suture needle assembly 120, it can complete the process of single suturing and continuous multiple suturing, which is conducive to improving the convenience and efficiency of suturing operation, and thus improving the surgical experience of the personnel.

[0054] In some embodiments, such as Figure 13 and Figure 14 As shown, the needle assembly 150 includes a sleeve 151 extending along the third channel 113, a limiting buckle 152 disposed within the sleeve 151, and a long rod 153 connected to the limiting buckle 152. The sleeve 151 can slide relative to the limiting buckle 152. The limiting buckle 152 is radially provided with an outwardly raised compression flap 1521. The limiting buckle 152 is used to insert into the second end 1422 of the suture connector 142.

[0055] This embodiment illustrates the specific structure of the needle assembly 150. The needle assembly 150 has two functions. First, it can extend and retract relative to the base 110. Specifically, the sleeve 151 and the long rod 153 can be directly pushed and pulled, thereby allowing the needle assembly 150 to extend and retract relative to the base 110. Second, it can fix and loosen the suture connector 142. Specifically, a limiting buckle 152 is disposed inside the sleeve 151, and the limiting buckle 152 has an outwardly raised compression flap 1521 arranged radially. The limiting buckle 152 is used to insert into the suture connector 142. When the suture connector 142 penetrates into the limiting buckle 152, the sleeve 151 moves linearly relative to the limiting buckle 152 until the sleeve 151 completely covers the outer surface of the limiting buckle 152. At this time, the inner wall of the sleeve 151 presses down the compression flap 1521, thereby forming a receiving cavity for fixing the suture connector 142. This achieves the fixation of the needle connector assembly 150 and the suture connector 142. When the sleeve 151 is moved linearly relative to the limiting buckle 152 until the compression flap 1521 is exposed, the compression flap 1521 will return to its raised state since it is no longer restrained by the sleeve 151. This allows the suture connector 142 to be separated from the needle connector assembly 150. It is easy to understand that the linear movement of the sleeve 151 relative to the limiting buckle 152 can be achieved by fixing the long rod 153 while simultaneously pushing and pulling the sleeve 151. Furthermore, the length of the long rod 153 can be longer than the length of the sleeve 151, allowing the operator to easily fix the long rod, thereby fixing the limiting buckle. At this point, pushing and pulling the sleeve 151 will allow it to move linearly relative to the limiting buckle 152. Alternatively, the length of the long rod 153 can be shorter than the length of the sleeve 151. In this case, the long rod can be fixed with the help of external tooling, such as steel wire, so that the sleeve 151 can also move linearly relative to the limit buckle 152.

[0056] Furthermore, the first end 1421 of the suture connector 142 is also detachably connected to the suture needle 121. By reasonably setting the separation force and tightening force when the first end 1421 of the suture connector 142 is separated from or connected to the suture needle 121, and the separation force and tightening force when the second end 1422 of the suture connector 142 is separated from or connected to the limiting buckle 152, the position change of the suture connector 142 between the needle receiving assembly 150 and the suture needle 121 can be realized.

[0057] Furthermore, the outer surface of the second end 1422 of the suture connector 142 is provided with a circumferential groove 1423, and the end of the compression flap 1521 is provided with a protrusion 1522 that matches the circumferential groove 1423.

[0058] In this embodiment, by providing a circumferential groove 1423 and a protrusion 1522, the magnitude of the disengagement force and the fastening force when the second end 1422 of the suture connector 142 is separated from or inserted into the limiting buckle 152 is easy to control, thereby improving the reliability of the needle assembly 150 in fixing or loosening the suture connector 142, and thus improving the suturing success rate of the suturing device 100.

[0059] Furthermore, the long rod 153 includes a third end 1531 and a fourth end 1532 opposite to each other in its length direction. The third end 1531 is located inside the limiting buckle 152, and the fourth end 1532 extends out of the limiting buckle 152 on the side opposite to the suture needle 121. When the second end 1422 of the suture connector 142 is inserted into the limiting buckle 152, the end of the second end 1422 contacts the end of the third end 1531.

[0060] In this embodiment, the long rod 153, besides serving to fix the limiting buckle 152 so that the sleeve 151 can move linearly relative to the limiting buckle 152, also serves a positioning function. When the second end 1422 of the suture connector 142 is inserted into the limiting buckle 152, as long as the second end 1422 contacts the third end 1531 of the long rod 153, it indicates that the suture connector 142 and the limiting buckle 152 are properly inserted, and the positions of the circumferential groove 1423 and the protrusion 1522 are aligned. This improves the reliability and convenience of the insertion of the suture connector 142 and the limiting buckle 152.

[0061] In some embodiments, the needle assembly 150 further includes a protective tube 154 covering the sleeve 151 and a protective head 155 connected to one end of the protective tube 154 near the suture needle 121. The protective head 155 has a hollow structure and is also connected to a limiting buckle 152. By providing the protective tube 154 and the protective head 155, the sleeve 151 and the limiting buckle 152 can be protected. Specifically, when the entire needle assembly 150 is extended or retracted relative to the base 110, the protective tube 154 and the protective head 155 can protect the sleeve 151 and the limiting buckle 152. When the long rod 153 is fixed and the sleeve 151 is pushed or pulled to make the sleeve 151 move linearly relative to the limiting buckle 152, since the protective head 155 is connected to both the protective tube 154 and the limiting buckle 152, the sleeve 151 is located between the protective tube 154 and the limiting buckle 152. At this time, only the sleeve 151 will move relative to the limit buckle 152, while the protective tube 154, the protective head 155, and the limit buckle 152 are all stationary. Thus, the protective tube 154 and the protective head 155 can continuously protect the limit buckle 152. It is easy to understand that the protective head 155 can be connected to the limit buckle 152 by means of interference fit or other methods, and this application does not limit this.

[0062] In some embodiments, such as Figure 2As shown, the first end 1421 of the suture connector 142 is provided with a slot 1424. The slot 1424 has elasticity for inward and outward contraction and expansion, and the suture needle 121 is interference-fitted into the slot 1424. This embodiment illustrates a detachable connection between the suture needle 121 and the first end 1421 of the suture connector 142. This method has a simple structure, does not require additional connecting parts, and thus improves the convenience of suturing.

[0063] In some embodiments, such as Figure 8 As shown, one end of the suture 141 is connected to the suture connector 142, and the other end extends out of the base 110 away from the side of the suture needle 121 through the third channel 113. In this embodiment, the suture 141 extends out of the base 110 away from the side of the suture needle 121 through the third channel 113. That is, the third channel 113 can also serve as a suture guide for the suture 141, and the ligator can enter through the third channel 113 to perform operations such as knotting the suture 141.

[0064] In some embodiments, the end of the second end 1422 of the suture connector 142 is pointed.

[0065] In this embodiment, when the end of the second end 1422 of the suture connector 142 is pointed, the suture connector 142 itself can also be used as a puncture needle to puncture the human tissue A to be sutured, thereby improving the suturing efficiency.

[0066] Specifically, when the second end 1422 of the suture connector 142 can be used as a puncture needle, the single suturing process is as follows: First, the tissue acquisition component 130 grasps the human tissue A to be sutured at a distance to the suture position, and the second end 1422 of the suture connector 142 is connected to the needle receiving component 150. The first end 1421 is not inserted into the suture needle 121, and the suture 141 is connected to the suture connector 142. Second, the suture needle assembly 120 retracts relative to the base 110, and the retraction path of the suture needle 121 passes through the human tissue A. Then, after the suture needle 121 passes through the human tissue A, the needle receiving component 150 extends relative to the base 110 so that the suture connector 142 fixed to the needle receiving component 150 is inserted into the suture needle 121. At this time, the needle receiving component 150 is configured to release the second end 1422 of the suture connector 142. Step 3: Retract the needle assembly 150 relative to the base 110, and extend the suture needle assembly 120 relative to the base 110, i.e., move in the opposite direction. Since the first end 1421 of the suture connector 142 is inserted into the suture needle 121, and the needle assembly 150 is configured to release the second end 1422 of the suture connector 142, the suture needle 121 will move in the opposite direction synchronously with the suture connector 142. In this way, the suture 141 will pass through the human tissue A as it moves with the suture connector 142, i.e. Figure 8As shown. Step 4: After the suture 141 passes through human tissue A, the tissue acquisition component 130 releases human tissue A, then re-acquires human tissue A from a different position, and then the suture needle component 120 retracts relative to the base 110. Since the second end 1422 of the suture connector 142 is pointed, during the retraction process, the second end 1422 of the suture connector 142 can puncture human tissue A again, thereby driving the suture 141 to pass through human tissue A again. Because the tissue acquisition component 130 re-acquires human tissue A from a different position, the puncture position of the second end 1422 of the suture connector 142 is not the same as the puncture position of the suture needle 121, so the suture 141 passes through human tissue A twice. In this way, one suturing process is completed. As can be seen from the above process, in one suturing process, the suture 141 can pass through human tissue A twice, which is beneficial to improving the single suturing efficiency and continuous suturing efficiency of the suturing device 100.

[0067] In some embodiments, such as Figure 1 As shown, the tissue acquisition assembly 130 includes a gripper head fixing portion 131 disposed in the second channel 112 and a gripper head 132 connected to the gripper head fixing portion 131. The end of the gripper head 132 near the suture needle 121 is helical. This embodiment illustrates the structure of the tissue acquisition assembly 130. By driving the gripper head fixing portion 131, the gripper head 132 can be extended or retracted relative to the base 110. The helical end of the gripper head 132 can be used to grip the human tissue A to be sutured.

[0068] In some embodiments, the suture needle assembly 120 further includes a steel wire (not shown), one end of which is connected to the portion of the suture needle 121 located in the first channel 111, and the other end extends out of the base 110 away from the side of the suture needle 121 through the first channel 111. In this embodiment, by driving the steel wire, the suture needle 121 of the suture needle assembly 120 can be extended or retracted relative to the base 110. It is readily understood that the suture needle assembly 120 can extend or retract relative to the base 110 in various ways. For example, it can be driven by a telescopic rod, a long rod, etc., and this application does not limit this.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A suturing device, characterized by, include: The base has a first channel, a second channel, and a third channel extending along its length, and the first channel, the second channel, and the third channel are arranged in a triangular pattern. A suture needle assembly, comprising a suture needle, the suture needle being U-shaped, one end of the U-shape being located in the first channel, and the other end being pointed and opposite to the third channel, the suture needle being obliquely arranged in the vertical direction, and the suture needle assembly being telescopic relative to the base; A tissue acquisition component, located in the second channel and retractable relative to the base, the tissue acquisition component being configured to grasp or release human tissue to be sutured; A suture assembly, the suture assembly including a suture and a suture connector connected to the suture, the suture connector including a first end and a second end, the first end being for detachable insertion with a suture needle; and A needle assembly disposed in the third channel and retractable relative to the base, the needle assembly being configured to secure or release the second end of the suture connector.

2. The suturing device of claim 1, wherein, The needle assembly includes a sleeve extending along the third channel, a limiting buckle disposed within the sleeve, and a long rod connected to the limiting buckle. The sleeve is slidable relative to the limiting buckle. The limiting buckle is radially provided with an outwardly raised compression flap. The limiting buckle is used to insert into the second end of the suture connector.

3. The suturing device of claim 2, wherein, The outer surface of the second end is provided with a circumferential groove, and the end of the extrusion flap is provided with a protrusion that matches the circumferential groove.

4. The suturing device of claim 3, wherein, The long rod includes a third end and a fourth end opposite to each other in its length direction, the third end being located inside the limiting buckle, and the fourth end extending out of the limiting buckle on the side opposite to the suture needle; When the second end of the suture connector is inserted into the limiting buckle, the end of the second end contacts the end of the third end.

5. The suturing device of claim 2, wherein, The needle assembly also includes a protective tube that covers the sheath and a protective head connected to one end of the protective tube near the suture needle. The protective head has a hollow structure and is also connected to the limiting buckle.

6. The suturing device of claim 1, wherein, The first end of the suture connector is provided with a slot, the slot having elasticity for inward and outward contraction and expansion, and the suture needle is interference-fitted into the slot.

7. The suturing device of claim 1, wherein, One end of the suture is connected to the suture connector, and the other end extends out of the base away from the suture needle through the third channel.

8. The suturing device of claim 3, wherein, The second end of the suture connector is pointed.

9. The suturing device according to claim 1, wherein, The tissue acquisition component includes a gripper head fixing part disposed in the second channel and a gripper head connected to the gripper head fixing part, wherein the end of the gripper head near the suture needle is spiral-shaped.

10. The suturing device according to claim 1, wherein, The suture needle assembly also includes a steel wire, one end of which is connected to the portion of the suture needle located in the first channel, and the other end of which extends through the first channel out of the base on the side opposite to the suture needle.

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