Laparoscope trocar hole suturing device

Abstract

The invention discloses a laparoscope trocar hole suturing device, and relates to the technical field of laparoscope suturing. The guide device specifically comprises a guide body and a suture needle, the guide body is provided with a plurality of needle holes, the two ends of each needle hole are a pricking inlet and a penetrating outlet respectively, the pricking inlets are located in the end face of the guide body, the penetrating outlets are located in the side face of the guide body, the needle holes are used for allowing the suture needle to penetrate through, and a notch is formed in the side wall of the suture needle. The gap forms a first thread hook and a second thread hook, the directions of the first thread hook and the second thread hook are opposite, the first thread hook is used for enabling a suture to penetrate through tissue to be fed into a body, and the second thread hook (8) is used for hooking out the suture after penetrating through another tissue. The first thread hook and the second thread hook are arranged on the suture needle, and the second thread hook can pierce the suture from the inner side of the poking and clamping hole under the condition that the suture needle does not turn, so that the suture penetrates out from inside to outside, and the suture difficulty is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of laparoscopic suturing technology, and specifically provides a laparoscopic puncture and suturing device. Background Technology

[0002] Laparoscopic surgery, as a mature minimally invasive surgical technique, has been widely used in various fields such as general surgery, obstetrics and gynecology, and urology due to its significant advantages, including minimal trauma, less postoperative pain, faster recovery, shorter hospital stay, and better cosmetic results. This technique involves creating several channels (called trocar ports) with a diameter of 5-12 mm in the abdominal wall to insert a laparoscope and various surgical instruments into the abdominal cavity for manipulation. To facilitate the division of labor among instruments, multiple trocar ports are created on the patient's body for inserting the laparoscopic camera and other surgical instruments such as grasping forceps, dissecting forceps, electrocautery hooks, scissors, and staplers.

[0003] At the end of the surgery, trocar holes with a diameter ≥10mm must be reliably closed in the abdominal wall fascia layer; otherwise, serious complications such as trocar hole hernia, bleeding, and infection can easily occur. Due to the small diameter and depth of the trocar hole, traditional suturing is extremely difficult. Therefore, there is an urgent market need for an easy-to-operate laparoscopic suturing device to reduce the difficulty of trocar hole closure. Summary of the Invention

[0004] This invention provides a laparoscopic puncture hole suturing device to solve the problem of the difficulty in suturing laparoscopic puncture holes and the easy occurrence of related complications if the suturing is not done well.

[0005] The technical solution of the present invention is as follows:

[0006] A laparoscopic puncture and suturing device includes a guide body and a suture needle. The guide body is provided with a plurality of needle holes, with an entry point and an exit point at both ends of the needle holes. The entry point is located on the end face of the guide body, and the exit point is located on the side of the guide body. The needle holes are used for the suture needle to pass through. The side wall of the suture needle is provided with a notch, which forms a first hook and a second hook. The first hook and the second hook face opposite directions. The first hook is used to guide the suture through the tissue into the body, and the second hook is used to hook the suture out after it has passed through another tissue.

[0007] In this method, the needle tip of the suture needle can be used to puncture tissue. The first suture hook is used to guide the suture through the tissue into the body, and then the needle is withdrawn. The suture needle is then inserted into the tissue at another location, and the second suture hook is used to hook out the suture and tie a knot, thus completing the suturing of the laparoscopic wound. Furthermore, the suture needle does not need to be turned during the suturing process, reducing the difficulty of the operation. This application also includes a guide body with needle holes for the suture needle to pass through. The guide body and needle holes can be used to locate the suture needle puncture position. The suture needle is inserted through the needle hole, which acts as a guide, ensuring that the suture needle enters at the accurate angle and position. The needle holes ensure that the suture needle penetrates to the same depth at the puncture site each time, accurately penetrating the fascia layer, further reducing the difficulty of suturing.

[0008] Preferably, the plurality of pinholes are arranged along the circumferential direction of the guide.

[0009] In this design, the needle holes are evenly distributed along the circumference. During suturing, the needle holes can be selected at appropriate positions for insertion without changing the position of the guide body, thus improving the convenience of the suturing work.

[0010] Preferably, different patients have different degrees of obesity and different thicknesses of subcutaneous adipose tissue, and the corresponding suture positions are also different. Therefore, the axis of the needle hole is inclined relative to the axis of the guide body, and the guide body is provided with needle holes of at least two inclination angles. The needle holes of different inclination angles form through-holes that are spaced apart along the axial direction on the side wall of the guide body.

[0011] In this design, the guide has several through-holes along the axial direction. During suturing, different suturing depths can be selected according to the patient's actual condition. Then, a needle hole that matches the suturing position is found, and the needle is inserted along the corresponding needle hole. This ensures accurate needle insertion, guarantees suturing effectiveness, and improves versatility.

[0012] Preferably, the notch is located at one end near the tip of the suture needle.

[0013] In this design, the notch is close to the needle tip, which reduces the depth of needle insertion and prevents the needle from penetrating too deeply and injuring the patient's internal tissues.

[0014] Preferably, in order to solve the problem of the first and second hooks piercing into the tissue and causing damage to the tissue when they move within the tissue, the ends of the first and second hooks are inclined toward the axis of the suture needle.

[0015] In this design, because the ends of the first and second hooks face the axis of the needle, this arrangement avoids contact between the first and second hooks and the tissue, thereby preventing the first and second hooks from piercing the tissue during needle movement.

[0016] Preferably, to facilitate the operation of the suture needle, a gripping part is provided at the end of the suture needle away from the needle tip.

[0017] In this solution, the gripping part is provided so that the operator can grasp it and control the suture needle, thus solving the problem that the small diameter of the suture needle makes it easy to slip and difficult to operate.

[0018] Preferably, the gripping part has a block structure.

[0019] In this design, the block structure has sharp, rounded edges, which can prevent the grip from slipping when held.

[0020] Preferably, the guide body has a positioning part on its side, and the positioning part is located on the side of the guide body closer to the outside of the body.

[0021] In this design, because the positioning part protrudes from the side of the guide, when the guide is inserted into the puncture hole, the positioning part will rest against the skin near the puncture hole, preventing the guide from being completely inserted into the puncture hole or falling into the patient's body. Simultaneously, when it is necessary to remove the guide, the positioning part can be grasped or clamped to remove it, as the positioning part provides a force point for guide removal.

[0022] Preferably, the outer surface of the guide body is provided with a scale, which extends along the axial direction of the guide body.

[0023] In this design, a scale is set on the outer surface of the guide body. The insertion depth of the guide body can be determined by the scale, and the depth position of the needle hole relative to the skin can also be determined by the scale, making the needle hole exit position more accurate and easier for medical staff to judge.

[0024] Preferably, the guide body is provided with a mark, which is used to indicate the insertion position and insertion order of the suture needle.

[0025] In this solution, when the guide body is equipped with several pinholes, the operator may insert the needle into the wrong pinhole during operation. In order to help the operator quickly find the correct pinhole, a mark is set to provide the operator with a reference. The operator can use the mark to determine the correct pinhole and thus insert the needle into the correct pinhole.

[0026] The beneficial effects of this invention are:

[0027] This invention provides a first hook and a second hook on the suture needle. The second hook allows the suture to be inserted into the puncture hole from the inside without the needle turning, thus enabling the suture to pass out from the inside, which greatly reduces the difficulty of suturing. Attached Figure Description

[0028] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a cross-sectional view of the suture being fed in during the suturing process in Example 1;

[0030] Figure 2 This is a partial enlarged view of the needle tip of the suture needle in Example 1;

[0031] Figure 3 This is a cross-sectional view of the suture thread being hooked out during the stitching process in Example 1;

[0032] Figure 4 This is a cross-sectional view of the guide body in Embodiment 1;

[0033] Figure 5 A schematic diagram of a figure-eight shaped coil;

[0034] Figure 6 This is a cross-sectional view of Example 2 after the seams have been outlined;

[0035] Figure 7 This is a cross-sectional view of the guide body in Example 2.

[0036] In the above figures, the corresponding reference numerals are as follows:

[0037] 1. Guide body; 2. Needle; 3. Grip part; 4. Puncture hole; 5. Needle tip; 6. Notch; 7. First thread hook; 8. Second thread hook; 9. Thread; 10. Positioning part; 11. Axis hole. Detailed Implementation

[0038] The technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings and through specific embodiments of the present invention.

[0039] Example 1:

[0040] like Figure 1As shown, this embodiment provides a laparoscopic puncture hole suturing device, including a guide body 1 and a suture needle 2. The guide body 1 is used to insert into the puncture hole and open it, so that the tissue wall of the puncture hole fits against the side of the guide body 1. The tissue wall of the puncture hole fits against the side of the guide body 1 and there is no relative movement between them. At the same time, the tissue wall is opened, so that the suture needle 2 can be inserted more accurately. The guide body 1 is provided with a plurality of needle holes 4. The two ends of the needle holes 4 form two openings on the guide body 1, one opening is located on the end face of the guide body 1, which is the puncture entrance for the suture needle 2, and the other opening is located on the side of the guide body 1, which is the exit point for the suture needle 2 to pass through. Each needle hole 4 is used for the suture needle 2 to pass through and to guide the suture needle 2. The side wall of the suture needle 2 is provided with a notch 6, and a first hook 7 and a second hook 8 are formed at the notch 6. Both the first hook 7 and the second hook 8 are used to hook the suture 9. The first hook 7 and the second hook 8 are oriented in opposite directions, and are used to bring the suture 9 into the patient's body and to bring the suture 9 out of the patient's body, respectively.

[0041] like Figure 2 and Figure 3As shown, the first hook 7 is located on the side away from the needle tip 5, and its orientation is the same as that of the needle tip 5 of the needle 2. During suturing, the suture 9 is hooked onto the first hook 7, and the needle tip 5 of the needle 2 is inserted through a needle hole 4 and exits from the tissue. As the needle 2 continues to puncture, the first hook 7 also exits from the tissue. At this point, the suture 9 hooked onto the first hook 7 is brought into the inner side of the tissue by the first hook 7. Before the operation, forceps and a laparoscopic camera are inserted into the body through other puncture holes. The laparoscopic camera allows observation of the internal situation, thus revealing the insertion position of the needle 2. After observing that the needle 2 has been inserted into the appropriate position, the suture 9 is removed from the first hook 7 using forceps inserted through other puncture holes, separating the suture 9 from the needle 2. Then, the needle 2 can be withdrawn and inserted through another needle hole 4, allowing the second hook 8 to enter the inner side of the tissue. Then, using forceps inserted through other puncture holes, the end of suture 9 located inside the tissue is hooked onto the second hook 8. The needle 2 is then pulled out, allowing the second hook 8 to pull the end of suture 9 out through another needle hole 4. At this point, the end of suture 9 has passed through both sides of the wound, and both ends of suture 9 extend outside the wound. After inserting suture 9 into one puncture hole, it is not necessary to immediately tighten the suture for suturing. At this time, a new guide 1 and needle 2 can be used to thread sutures through the other puncture holes. After all puncture holes have been sutured, a knot can be tied to tighten the wound, thereby tightening the fascia from the inside of the puncture hole to ensure the effectiveness of the puncture hole suturing. Since the two insertions of needle 2 are along the direction of needle hole 4, the insertion depth of needle 2 is the same. The insertion positions of needle 2 are located on both sides of the puncture hole, allowing the tissue walls of the puncture holes to adhere during suturing. Before tying the suture 9, the guide 1 can be removed. Since both ends of the suture 9 can extend outside the wound, the two ends of the suture 9 can be withdrawn from the needle hole 4 during the removal of the guide 1, separating the guide 1 from the suture 9, and then suturing can be performed. When the needle 2 penetrates the tissue, the first hook 7 and the second hook 8 will move within the tissue. To prevent the first hook 7 and the second hook 8 from piercing the tissue and causing damage during movement, the ends of the first hook 7 and the second hook 8 are tilted towards the axis of the needle 2. This setting prevents the first hook 7 and the second hook 8 from contacting the tissue during movement, thus preventing the first hook 7 and the second hook 8 from piercing the tissue when the needle 2 moves.

[0042] Because the ends of the first hook 7 and the second hook 8 are inclined toward the axis of the needle 2, when the thread 9 is taut and moved along the axis of the needle 2, the thread 9 will slide into the notch 6 at the position of the first hook 7 and the second hook 8, which makes it easy to hang the thread 9 on the first hook 7 or the second hook 8.

[0043] The notch 6 is located near the tip 5 of the needle 2. This setting can reduce the insertion depth of the needle 2 and allow the first hook 7 and the second hook 8 to be inserted into the tissue more quickly, avoiding the needle 2 from penetrating too deeply and injuring the internal tissue.

[0044] The first hook 7 and the second hook 8 are constructed on both sides of the notch 6, forming a structure for hooking the suture 9. A gap is formed between the first hook 7 and the needle 2 to hook the suture 9. The width of the gap gradually decreases from the end of the first hook 7 towards its root, allowing the gap to hold the suture 9 in place and preventing it from coming off during the movement of the needle 2. Similarly, a gap also exists between the second hook 8 and the needle 2, and the width of this gap gradually decreases from the end of the second hook 8 towards its root, allowing the second hook 8 to also hold the suture 9 securely. This allows the suture 9 to be smoothly pulled out of the body, preventing it from coming off the needle 2. When it is necessary to remove the suture 9 from inside the body, forceps and a laparoscopic camera are inserted through other puncture holes. The suture 9 is then held in place by the forceps and removed from the needle 2. To prevent the suture 9 from being pulled out when the needle 2 is removed, the suture 9 can be held in place by forceps inside the body when the needle 2 is removed, thus preventing the suture 9 from coming off.

[0045] The needle tip 5 of the suture needle 2 is used to puncture tissue. The other end of the suture needle 2 is located outside the guide body 1 during use, for the operator to grip. Because the diameter of the suture needle 2 is small, it is easy to slip during use. Therefore, a gripping part is provided on the suture needle 2. The gripping part is located at the end away from the needle tip 5, for the operator to hold.

[0046] The gripper is shaped like an angular block to prevent it from rotating in the palm of the hand during use. Because the notch 6 on the side of the needle 2 has a specific orientation, the angular gripper allows for stable rotation of the needle 2 when it needs to be rotated to change the orientation of the notch 6.

[0047] Blocky structures with sharp edges can be in the shape of cuboids, pentagonal prisms, etc.

[0048] The guide body 1 also has a positioning part 10 on its side. The positioning part 10 is a block-shaped or sheet-shaped structure that protrudes outward in the radial direction from the side of the guide body 1. It is used to prevent the guide body 1 from falling into the patient's body or to prevent the guide body 1 from sinking completely into the puncture hole and becoming difficult to remove. When it is necessary to remove the guide body 1, the positioning part 10 can be held with tweezers or fingers and then pulled outward to remove the guide body 1.

[0049] The guide body 1 has needle holes 4 for the insertion of the suture needle 2. However, during suturing, the insertion position of the suture needle 2 should be adjusted accordingly due to factors such as the position of the puncture holes. If the position of the needle holes 4 is changed by rotating the guide body 1, it will lead to tissue contusion or even bleeding. Therefore, among the several needle holes 4 provided on the guide body 1, each needle hole 4 forms several evenly distributed exit points in the circumferential direction of the guide body 1.

[0050] Along the circumferential direction of the guide body 1, there are several through-holes. During suturing, the operator can select a suitable needle hole 4 to insert into, so that the suture needle 2 can pierce the tissue from the corresponding through-hole, which can meet the suturing requirements and thus complete the purpose of suturing and punching.

[0051] Because patients have varying degrees of obesity and are affected by factors such as the thickness of their subcutaneous fat, the depth at which the suture needle 2 is inserted into the wound also varies. Continuously changing the depth of the guide 1 would also result in inconsistent suture depth, affecting healing. Therefore, several exit points are also provided on the side wall of the guide 1 along its axial direction.

[0052] like Figure 4 As shown, the needle holes 4 on the guide body 1 form several penetration points along the axial direction of the guide body 1. The operator can choose to insert the needle at an appropriate depth in the puncture hole according to the actual situation of the patient to meet the requirements of different depth suturing.

[0053] To facilitate determining the depth of each insertion point, a scale can be set on the outer side of the guide body 1. By observing the scale, the depth of the guide body 1 inserted into the skin can be determined. Based on the scale corresponding to each insertion point, the depth position of the insertion point in the puncture hole can be determined, thus facilitating the selection of the needle hole 4.

[0054] Several pinholes 4 form several through-holes in the axial and circumferential directions of the guide body 1, which can be used to solve the problems of uneven suturing depth and uneven alignment caused by the adjustment of the position of the guide body 1.

[0055] Example 2:

[0056] This embodiment two provides a laparoscopic puncture hole suturing device. Unlike embodiment one, the needle holes 4 in this embodiment two are marked.

[0057] Since there are a large number of needle holes 4, and not every needle hole 4 can be used, in order to prevent the needle 2 from piercing the wrong needle hole 4, a mark is set on the needle hole 4. The operator can use the mark to determine whether the needle hole 4 is correct.

[0058] The markings can be data numbers. Each needle hole 4 has a number on one side. Before each insertion, the operator determines which hole to insert from, and then can accurately insert the needle hole 4.

[0059] The markings can also be different colors. By dyeing the different piercing entrances of the pinholes 4 with different colors, the pinholes 4 can also be distinguished.

[0060] like Figure 6 As shown, when suturing the puncture hole with suture 9, the different distribution patterns of suture 9 result in different tightening effects on the puncture hole. For example, if suture 9 forms a circular loop, the hemostatic effect of suture 9 on suturing the puncture hole may be less than ideal; for example... Figure 5 As shown, forming a figure-eight loop with suture 9 can improve hemostasis while ensuring the tightness of the trocar hole. To form a figure-eight knot, suture 9 needs to be passed through the tissue from the inside and then reinserted into the trocar hole, then passed through the bottom of suture 9 inside the trocar hole, and finally tied to form the figure-eight loop. However, to remove the middle part of suture 9 from the trocar hole and tie a knot, the trocar hole needs to be opened again after the guide 1 is removed before the middle part of suture 9 can be hooked out. This process requires using other tools to open the trocar hole again, which is inconvenient.

[0061] like Figure 6 and Figure 7 As shown, in this second embodiment, an axial hole 11 is provided on the guide body 1. The axial hole 11 passes through both ends of the guide body 1 and is parallel to the axis of the guide body 1. After the suture needle 2 has completed its second puncture and the suture 9 has been hooked out of the patient's body, the suture needle 2 can be inserted into the axial hole 11 and hooked onto the middle of the suture 9 to pull it out, forming a W-shape. Then, the guide body 1 is removed. After the guide body 1 is removed, the middle of the suture 9 also protrudes from the puncture hole, making it convenient for medical personnel to form an 8-shaped loop of the suture 9 before tying it.

[0062] During the procedure, CO2 gas is delivered into the patient's abdominal cavity via a pump or similar device to maintain the intra-abdominal pressure within a certain range, facilitating the manipulation of surgical instruments. Although guide 1 opens the trocar port, its material is impermeable, and the diameter of the axial hole 11 is small. Therefore, the rate of gas leakage from the axial hole 11 is still lower than the rate of gas replenishment into the patient's body, thus maintaining the intra-abdominal pressure. The other trocar ports are not opened, so their sidewalls remain in close contact with the surfaces of instruments such as forceps and the laparoscopic camera, resulting in low gas leakage rates and minimal impact on the intra-abdominal pressure.

Claims

1. A laparoscopic puncture hole (4) suturing device, characterized in that, The device includes a guide body (1) and a suture needle (2). The guide body (1) is provided with a plurality of needle holes (4). The two ends of the needle holes (4) are respectively the puncture entrance and the exit point. The puncture entrance is located on the end face of the guide body (1), and the exit point is located on the side of the guide body (1). The needle holes (4) are used for the suture needle (2) to pass through. The side wall of the suture needle (2) is provided with a notch (6). The notch (6) forms a first hook (7) and a second hook (8). The first hook (7) and the second hook (8) are oriented in opposite directions. The first hook (7) is used to send the suture (9) through the tissue into the body, and the second hook (8) is used to hook out the suture (9) after passing through another tissue.

2. The laparoscopic puncture hole (4) suturing device according to claim 1, characterized in that, The outlets of the plurality of pinholes (4) are uniformly arranged along the circumferential direction of the guide (1).

3. The laparoscopic puncture hole (4) suturing device according to claim 1, characterized in that, The axis of the pinhole (4) is inclined relative to the axis of the guide (1). The guide is provided with pinholes (4) at at least two inclination angles. The pinholes (4) at different inclination angles form through-holes that are spaced apart along the axial direction on the side wall of the guide (1).

4. The laparoscopic puncture hole (4) suturing device according to claim 1, characterized in that, The notch (6) is located at one end near the tip (5) of the suture needle (2).

5. The laparoscopic puncture hole (4) suturing device according to claim 1, characterized in that, The ends of the first hook (7) and the second hook (8) are inclined toward the axis of the needle (2).

6. The laparoscopic puncture hole (4) suturing device according to claim 1, characterized in that, The suture needle (2) has a gripping part (3) at the end away from the needle tip (5).

7. The laparoscopic puncture hole (4) suturing device according to claim 6, characterized in that, The gripping part (3) has a square structure.

8. The laparoscopic puncture hole (4) suturing device according to claim 1, characterized in that, The guide (1) has a positioning part (10) on its side, and the positioning part (10) is located on the side of the guide (1) closer to the outside of the body.

9. The laparoscopic puncture hole (4) suturing device according to claim 1, characterized in that, The outer surface of the guide (1) is provided with a scale, which extends along the axial direction of the guide (1).

10. The laparoscopic puncture hole (4) suturing device according to claim 1, characterized in that, The guide (1) has a mark on its end face, which is used to indicate the insertion position and insertion order of the suture needle (2).

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