Puncture hole suturing device for laparoscopic surgery

Abstract

The utility model relates to a puncture hole suturing device for laparoscopic surgery. The device includes a stapling body and a sleeve. The suturing body is used for suturing a puncture hole of a patient. The hollow-cylinder-shaped sleeve is provided with a hollow-cylinder-shaped guide sleeve piece which is fixedly connected with the sleeve in the mode that the axes are not collinear or staggered, so that the guide sleeve piece and the sleeve do not move relative to each other. The front suture section and the guide kit enter the body of a patient through a puncture hole of the patient in a mutually embedded mode. The front suture section can be embedded with the guide kit so as to avoid operation injury before, during and after implantation, suture direction deviation caused by rotation of the suture body can be avoided, operation stability is effectively improved, and the front suture section can be conveniently implanted into an abdominal cavity through a laparoscope puncture hole and sutured from an intraperitoneal line to the subcutaneous direction.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a puncture hole suturing device for laparoscopic surgery. Background Art

[0002] Laparoscopic surgery is a newly developed minimally invasive surgical procedure. Due to its minimal trauma and rapid recovery, it has become widely used, replacing many previously open surgeries. Laparoscopic surgery requires a trocar to create a working channel in the abdominal wall, then perform the procedure using specially designed, extended surgical instruments under the laparoscope's display screen. Currently, trocars range in diameter from 5mm to 15mm, making traditional puncture suturing difficult, especially for obese patients. This difficulty is particularly pronounced when suturing the puncture hole to stop bleeding.

[0003] In the existing technology, medical personnel often use a needle holder to straighten the suture needle with thread, then puncture it through the muscle layer and peritoneum on one side of the puncture hole into the abdominal cavity. Then, they use the needle holder to pull the needle out of the abdominal cavity through the puncture hole and adjust the direction to pierce the needle from the other side of the puncture hole on the peritoneal side of the abdominal cavity through the peritoneum and muscle layer to exit the subcutaneous tissue. This often occurs in the opposite direction of the operation direction shown on the laparoscope display, which brings difficulties to the medical personnel's operation process. In addition, the deviation between the puncture direction or needle removal position and the preset direction or needle removal position is too large, and medical personnel need to repeatedly adjust and repeat the puncture operation, which makes the overall convenience, efficiency and practicality of the existing technology low, and it is easy to cause tissue damage and abdominal organ damage to patients.

[0004] Patent document CN217338665U discloses a laparoscopic suturing device for puncturing abdominal wall puncture incisions, and more particularly, discloses a device that uses a hook groove on the bent portion of the needle body of the suturing device to mate with a puncture needle. This patent utilizes two suturing devices to sequentially pass suture thread through deep tissue on both sides of the puncture incision to suture the incision. The suturing device comprises a bent portion of the needle body, a puncture needle body, a needle body connecting portion, a handle, a hook groove, and a puncture needle. The puncture needle body has a needle body connecting portion at one end and a bent portion at the other end. The bent portion of the needle body is an arc-shaped structure. The bent portion of the needle body forms an obtuse angle with the puncture needle body. One end of the needle body connecting portion is connected to the puncture needle body, and the other end is connected to the handle. One end of the bent portion of the needle body is connected to the puncture needle body, and the other end is connected to the puncture needle. The bent portion of the needle body is symmetrically provided with two hook grooves, each having an elliptical arc cross-section and an arc length of four-fifths to six-sevenths of the ellipse. However, the patent suffers from the lack of a protective component at the puncture needle of the stapler, which makes it easy for the stapler to cause damage to the patient's abdominal cavity during use. Furthermore, the operation process is complicated, and there is no device for positioning the stapler. Consequently, if the stapler rotates, it is difficult for medical personnel to control the orientation of the needle, requiring repeated adjustments and manipulations by the medical personnel, resulting in low overall convenience and efficiency.

[0005] In addition, on the one hand, due to differences in understanding among those skilled in the art; on the other hand, because the inventor studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents are listed in detail. However, this does not mean that the utility model does not have the characteristics of these prior arts. On the contrary, the utility model already has all the characteristics of the prior art, and the applicant reserves the right to add relevant prior art to the background technology. Utility Model Content

[0006] Due to the lack of suitable puncture tools for laparoscopic puncture sutures in the prior art, especially for obese patients, the puncture direction or needle withdrawal position of the puncture needle may deviate significantly from the preset direction or needle withdrawal position, resulting in medical personnel having to repeatedly adjust the puncture needle. In addition, during the process of inserting the needle into the puncture hole, repeated manipulation can easily injure abdominal organs, and the needle tip can also easily damage the patient's tissue. Therefore, how to improve the needle tip structure of the puncture needle so that its puncture direction or needle withdrawal position is easier for medical personnel to control, and how to avoid repeated manipulation that can easily injure abdominal organs and tissue damage caused by the needle tip being inserted into the patient's body, are the technical problems to be solved by the present invention.

[0007] To improve the safety of laparoscopic puncture sutures, existing technologies have developed needle structures with arc-shaped front ends to prevent them from entering patient tissue and damaging internal organs due to misoperation. For example, patent publication CN213217348U discloses a laparoscopic hernia surgery suture device comprising a sleeve, a needle and a handle disposed at both ends of the sleeve, a traction rod and a support rod disposed between the needle and the sleeve, the needle having a U-shaped structure, a conical tip at one end, a thread hanging hole disposed on the needle near the end of the tip, and a traction rod hanger and a support rod hanger offset along the needle's axis at the other end. The handle is provided with a traction seat slidably arranged along the sleeve's axis, one end of the traction rod being hinged to the traction seat, the other end of the traction rod being hinged to the traction rod hanger, one end of the support rod being fixed to the sleeve via a mounting seat, and the other end of the support rod being hinged to the support rod hanger. This technical solution enables multi-directional needle angle adjustment by rotating the handle or moving the traction rod. However, the sharp tip of the needle in this solution remains exposed to the patient's tissue during adjustment, making it highly susceptible to direct damage to surrounding tissue due to operational errors or errors in angle adjustment. Furthermore, the angle adjustment in this solution includes adjusting the needle's deflection angle, which increases the freedom of needle angle adjustment during laparoscopic puncture suturing. This, in turn, complicates the selection of the suture insertion point, making it impossible to determine the exact location where the needle will exit the skin, resulting in poor positioning of the puncture point.

[0008] In response to the deficiencies of the prior art, the technical solution of the present invention is to provide a puncture hole suturing device for laparoscopic surgery. The puncture hole suturing device is used, for example, to solve sheath hernias and to sew laparoscopic openings. The device includes a suturing body and a sleeve. The suturing body includes a suturing front section for inserting a suture into a patient's puncture hole and performing a suturing operation. The hollow cylindrical sleeve is used to accommodate the suturing body to assist the suturing body in moving therein. The extension direction of the suturing front section and the extension direction of the hollow cylindrical sleeve are on different axes from each other. The sleeve is provided with a guide sleeve that is also hollow cylindrical and is connected to the sleeve in a non-colinear or misaligned manner. The guide sleeve is used to guide the movement of the suturing front section. The length of the guide sleeve is set so that the guide sleeve can temporarily cover the suturing front section when the suturing front section moves to a hidden position, so that the suturing front section and the guide sleeve can enter the patient's body through the patient's puncture hole together.

[0009] Compared to the above-mentioned prior art, the suturing body of the present invention can be arranged inside the sleeve in a manner that produces relative displacement, and the suturing front section of the suturing body with a puncture function can form a relatively displaceable assembly with a guide sleeve arranged on one end of the sleeve near the patient's puncture hole, so as to be inserted into the patient's tissue through the puncture hole used for laparoscopic surgery. Based on the above-mentioned distinguishing technical features, the technical problems to be solved by the present invention may include: how to prevent the suturing needle from accidentally injuring the patient's intra-abdominal tissue during suturing the puncture hole used for laparoscopic surgery. The suturing front section of the present application can be hidden in the guide sleeve to avoid operational damage before, during, and after insertion. The suturing body can hide the puncture needle of its suturing front section inside the guide sleeve by relative displacement, thereby forming a protective structure between the patient's abdominal tissue through the guide sleeve. In addition, the present invention can also prevent the suturing direction from being offset due to rotation of the suturing body, effectively improving operational stability and facilitating insertion into the abdominal cavity through the laparoscopic puncture hole and suturing from the intraperitoneal line to the subcutaneous direction.

[0010] According to a preferred embodiment, the device further comprises a spring located between the suturing body and the sleeve to apply elastic force or tension to the suturing body and the sleeve. When the spring is in a naturally extended state, the needle tip of the front suturing section extends from the guide kit. When the spring is in a naturally extended state, the needle tip of the front suturing section extends from the guide kit, so that the front suturing section is in a working position. The spring of the present application can provide a certain amount of damping when medical personnel hold the suturing device, thereby avoiding damage to the patient's surrounding tissue or bleeding when the suturing device is inserted through the laparoscopic puncture hole due to excessive force.

[0011] According to a preferred embodiment, the hollow cylindrical sleeve moves along the first direction to generate relative displacement with the held suture body, so that the spring is in an expanded state due to the tension.

[0012] According to a preferred embodiment, the sleeve in the form of a hollow cylinder moves in the reverse direction along the first direction to move relative to the held suture body, so that the spring is forced into a compressed state due to the pressure.

[0013] According to a preferred embodiment, the hollow cylindrical sleeve can be displaced relative to the suture body, so that the spring is in an expanded state due to the tension, or the spring is in a compressed state due to the push.

[0014] According to a preferred embodiment, when the suturing body and the sleeve are relatively displaced so that the spring is compressed, the spring is compressed to the extent that the needle tip of the suturing front section and the threading hole on the suturing front section are located in the hollow interior of the guide sleeve and are blocked by the guide sleeve, thereby causing the suturing front section to move to a hidden position. When the suturing body and the sleeve are relatively displaced so that the spring is compressed, the spring is compressed to the extent that the needle tip of the suturing front section and the threading hole on the suturing front section are located in the hollow interior of the guide sleeve and are blocked by the guide sleeve. After the suture is inserted into the threading hole and the suturing front section moves to the hidden position, the guide sleeve can be mounted on the needle of the suturing front section, so that the threading hole and the needle are covered by the guide sleeve, thereby preventing the suture from falling out before or during suturing, and at the same time preventing the puncture hole suturing device for laparoscopic surgery from being damaged when inserted through the puncture hole.

[0015] According to a preferred embodiment, the suturing body includes a suturing rear section located in the sleeve, and the end of the suturing rear section opposite the first direction is provided with a first connecting portion that interacts with the spring. The suturing rear section can be placed in the sleeve and partially extend out of the sleeve, so that the suturing body moves along the sleeve and prevents it from slipping.

[0016] According to a preferred embodiment, the suturing body further includes a middle suturing section for connecting the front suturing section and the rear suturing section. The middle suturing section has an arc-shaped structure. Compared with the above-mentioned prior art, the front suturing section in the present invention has an extension direction completely opposite to that of the rear suturing section, and the front suturing section and the rear suturing section are transitionally connected by the arc-shaped middle suturing section. Based on the above-mentioned distinguishing technical features, the technical problems to be solved by the present invention may include: avoiding multiple angle adjustments of the suturing needle during the suturing process of the puncture hole used in laparoscopic surgery, thereby improving the suturing efficiency of the suturing needle. The front suturing section, middle suturing section, and rear suturing section of the present application can form a "J"-shaped suturing device. That is, the suturing body of the present application forms a "J"-shaped needle at at least one end, thereby avoiding the problem of the puncture direction or needle exit position deviating too much from the preset direction or needle exit position due to operational errors. In particular, when the operation direction displayed on the laparoscope display is opposite to the actual operation direction, it can effectively avoid medical personnel from having to make repeated adjustments and operations, thereby improving the convenience, efficiency, and practicality of the overall suturing process.

[0017] According to a preferred embodiment, the suture body further includes a first finger ring located at an end portion of the suture body opposite to the first direction and connected to the suture rear section via a first connecting portion to apply tension or pressure to the suture rear section. Medical personnel can control the displacement of the suture body via the first finger ring of the present application, thereby reducing the relative distance between the suture body and the sleeve.

[0018] According to a preferred embodiment, a second finger ring and a third finger ring are respectively provided on either side of the end of the sleeve opposite the first direction, connected to the sleeve to apply tension or pressure to the sleeve. The second and third finger rings are symmetrically arranged about the sleeve axis. The first, second, and third finger rings of the present application can be used to secure a medical professional's hand to the suturing device, thereby improving the stability of the puncture operation.

[0019] According to a preferred embodiment, a spring is provided between the suturing body and the sleeve to increase operational damping. For example, when medical personnel insert the suturing device into a patient's puncture hole, if the damping feeling of the spring is lacking, there may be a situation where the puncture position is shifted due to excessive force, resulting in a lack of grip, etc., especially to avoid damage to the patient's surrounding tissue or bleeding caused by excessive force (i.e., lack of grip) when inserting the suturing device through the laparoscopic puncture hole.

[0020] In a preferred embodiment, the suture body, sleeve, and guide kit are made of a metal material that resists rejection. This reduces the body's immune system's rejection response during insertion, preventing inflammation, infection, and other complications, increasing surgical success rates and improving patient recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a preferred embodiment of a puncture hole suturing device for laparoscopic surgery according to the present invention;

[0022] Figure 2 This is a schematic structural diagram of a preferred embodiment of a puncture hole suturing device for laparoscopic surgery according to the present invention after the spring is compressed;

[0023] Figure 3 The utility model is a schematic diagram of the enlarged structure of the front section of the suturing of a puncture hole suturing device for laparoscopic surgery in a preferred embodiment.

[0024] Reference Signs List

[0025] 100: Suture body; 101: Suture front section; 102: Suture middle section; 103: Suture back section; 104: Threading hole; 105: First connecting part; 106: First finger ring; 200: Sleeve; 201: Guide kit; 202: Second connecting part; 203: Second finger ring; 204: Third finger ring; 300: Spring; 400: First direction. DETAILED DESCRIPTION

[0026] The following is a detailed description with reference to the accompanying drawings.

[0027] The present application relates to a puncture hole suturing device for laparoscopic surgery. The puncture hole suturing device is used, for example, to solve sheath hernia and to suturing the laparoscopic opening. Figure 1 As shown, the device includes a suturing body 100 and a sleeve 200 .

[0028] like Figure 1 The first direction 400 shown (from Figure 1 The first direction 400 is parallel to the axis of the sleeve 200. The positive direction of the first direction 400 is shown by the arrow in the figure, and the reverse direction is the opposite direction thereof.

[0029] The suturing body 100 is used for passing the suture thread and for suturing the patient's puncture hole. The sleeve 200, which is a hollow cylindrical member, is used to sleeve the suturing body 100 to assist the suturing body 100 in moving up and down along the axis of the sleeve 200. The suturing body 100 includes a suturing front section 101 for inserting the suture thread into the patient's puncture hole for suturing. The suturing body 100 and the suturing front section 101 are on different axes from each other, preferably as shown in FIG. Figure 1 、 2 As shown, they move along respective axes that are parallel to each other in space.

[0030] When viewed in a first direction 400, the hollow cylindrical guide sleeve 201 and the hollow cylindrical sleeve 200 are fixed with their axes non-collinear or offset, preventing relative movement between the guide sleeve 201 and the sleeve 200. The hollow interior of the cylindrical hollow guide sleeve 201 is used to engage the front suture segment 101, restricting radial movement of the guide sleeve 201 perpendicular to the first direction 400 without restricting axial movement of the front suture segment 101 parallel to the first direction 400. The hollow inner diameter of the guide sleeve 201 is larger than the outer diameter of the front suture segment 101.

[0031] like Figure 1 、 Figure 2 As shown, the device further includes a spring 300 located between the suture body 100 and the sleeve 200 to apply elastic force or tension to the suture body 100 and the sleeve 200 .

[0032] like Figure 1 The spring 300 is shown in a naturally stretched state. The spring 300 maintains the naturally stretched state based on its own elasticity, so that the needle tip of the front suture section 101 extends out from the guide sleeve 201.

[0033] Furthermore, when the front suture segment 101 is held, the medical staff pushes the hollow cylindrical sleeve 200 in the first direction 400 to expand the spring 300, while the medical staff pulls the sleeve 200 in the opposite direction of the first direction 400 to compress the spring 300. Correspondingly, the sleeve 200 can be held first, and then the suture body 100 can be pushed or pulled to move the front suture segment 101 up and down relative to the guide sleeve 201 of the sleeve 200.

[0034] from Figure 1 Starting from the working position of the suture front section 101 shown in FIG, the sleeve 200 which is generally hollow cylindrical is moved along the first direction 400 (from Figure 1 The spring 300 is expanded due to the pulling force of the medical staff. As a result, the front suture section 101 is exposed in the guide kit 201 with a longer needle tip to puncture the thicker subcutaneous layer of the patient.

[0035] like Figure 2 The spring 300 is in the compressed state shown in FIG. 1 , and when the medical staff moves the sleeve 200 in the reverse direction of the first direction 400 (from Figure 2 When the spring 300 is compressed (in the vertical direction from the middle lower side to the upper side) to move relative to the suture body 100 held by the medical staff, the spring 300 will be forced into a compressed state due to the pressure applied by the medical staff. Preferably, the spring 300 is compressed until the needle tip of the suture front section 101 and the threading hole 104 are located in the hollow interior of the guide kit 201 and are blocked by the guide kit 201. At this time, the needle head of the suture front section 101 enters the patient's body through the patient's puncture hole in a manner blocked by the guide kit 201. In this setting, the threading hole 104 is equivalent to a needle holder, which is used to transmit sutures inside and outside the abdominal cavity. Preferably, the present invention is suitable for sutures No. 0, No. 4 or No. 7, and the size of the threading hole 104 is comparable to that of a medium-sized round needle.

[0036] In such Figure 2 In the blocked position of the front suture section 101 shown, when the threading hole 104 is blocked because it is within the guide kit 201, the guide kit 201 can limit the movement of the suture thread in the threading hole 104 of the front suture section 101, thereby preventing the suture thread carried by the front suture section 101 from falling out before or during suturing.

[0037] After the medical staff inserts the suturing device into the patient's puncture hole, it is necessary to puncture the subcutaneous layer on one side of the patient's puncture hole. To this end, the medical staff can compress the spring 300 so that the threading hole 104 on the suturing front section 101 is located in the guide kit 201 so as to shield the threading hole 104 through the guide kit 201, thereby avoiding exposing the needle to the puncture hole and preventing the suture from coming out.

[0038] Thus, the medical staff can control the suturing device to first enter the patient's body through the patient's puncture hole by covering the needle of the suturing front section 101, and after entering the patient's body, by releasing the applied tension, the needle of the suturing front section 101 is exposed downward under the elastic action of the spring 300 itself to puncture the subcutaneous layer on one side of the patient's puncture hole.

[0039] The spring 300 of the present invention can increase the operating damping of medical personnel by hindering the relative displacement of the suturing body 100 and the sleeve 200. If the damping effect of the spring 300 is lacking when the medical personnel inserts the suturing device into the patient's puncture hole, the suturing device will lack force feedback after the medical personnel holds the suturing device and applies tension or pressure to the suturing device. This may result in the puncture position being shifted due to excessive gripping force, and in particular, the patient's surrounding tissue may be damaged or bleeding when the suturing device is inserted through the laparoscopic puncture hole due to excessive force.

[0040] like Figure 1 、 Figure 3 As shown, the suture body 100 further includes a suture rear section 103 located in the hollow interior of the hollow cylindrical sleeve 200 and a suture middle section 102 (which can be as shown in FIG. Figure 3 The suture front section 101 and the suture rear section 103 are connected. Preferably, the suture middle section 102, the suture rear section 103 and the threading hole 104 are integrally formed.

[0041] The cylindrical rear suturing section 103 is provided with a first connecting portion 105 in the shape of a convex ring at the end opposite to the first direction 400, which interacts with one end of the spring. The hollow cylindrical sleeve 200 is provided with a second connecting portion 202 in the shape of a convex ring at the end opposite to the first direction 400, which interacts with the other end of the spring.

[0042] Preferably, the suture body 100 further includes a first finger ring 106, which is located at the end of the suture body 100 opposite to the first direction 400. The first finger ring 106 can be directly or indirectly connected to the suture rear section 103 via the first connecting portion 105 to apply tension or pressure to the suture rear section 103. Medical personnel can use the first finger ring 106 to apply pressure in the first direction 400 or tension in the opposite direction of the first direction 400 to the suture body 100, thereby compressing or expanding the spring 300.

[0043] Preferably, sleeve 200 is provided with at least one finger ring, such as a second finger ring 203 and a third finger ring 204. These two finger rings are connected to the side of sleeve 200 on either side of the end opposite the first direction 400 to apply tension or pressure to sleeve 200. Second finger ring 203 and third finger ring 204 are symmetrically arranged about the sleeve 200 axis. Medical personnel can apply force to sleeve 200 through second finger ring 203 and third finger ring 204 to compress or expand spring 300.

[0044] Preferably, the first finger ring 106, the second finger ring 203 and the third finger ring 204 can have different colors and / or shapes and be located at different positions to avoid misoperation when applying force through the finger rings.

[0045] Preferably, the length of the arc-shaped structure of the suture middle section 102 can be set to a variety of flexible specifications, such as 1 to 3 mm, 3 to 10 mm, and 10 to 20 mm. The total length of the suture front section 101, the suture middle section 102, and the suture back section 103 can be, for example, 10 to 40 mm. The suture middle section 102 is used to connect the suture front section 101 and the suture back section 103 so that the two sections facing different directions can be smoothly connected to form a barb structure. The suture middle section 102 can be an intermediate adapter (i.e., detachable, not shown in the figure) in the "U"-shaped part of the suture body 100, so that a replaceable suture front section 101 can be used in the present invention.

[0046] According to an optional embodiment, the diameters of the front suture section 101 respectively conform to the three types of sutures of the GB / T28708-2012 standard: Fine sutures: suitable for delicate surgical operations, such as microsurgery and plastic surgery. Common specifications include 7-0 to 6-0 (diameter is approximately 0.05 mm to 0.07 mm). Medium sutures: used for general soft tissue sutures, such as skin, muscle and visceral surgery. Common specifications include 4-0 to 3-0 (diameter is approximately 0.2 mm to 0.3 mm). Thick sutures: used for sutures requiring high strength, such as tendon and ligament repairs. Common specifications include 2-0 to 0 (diameter is approximately 0.4 mm to 0.5 mm).

[0047] Preferably, the front suture segment 101, which serves as the portion of the suture body 100 inserted into the patient's puncture hole, can be a barbed structure for puncturing one side of the patient's puncture hole. The tip of the barbed structure of the front suture segment 101 is also provided with a threading hole 104 for inserting the suture thread. According to one embodiment, the diameter of the threading hole 104 can be, for example, 0.12 mm. Preferably, the front suture segment 101, which serves as the end of the suture body 100, is configured to form a "J"-shaped needle.

[0048] According to the present application, the front suture segment 101 can be interlocked with the guide sleeve 201 to avoid operational damage before, during, and after insertion. That is, when the needle tip of the front suture segment 101 is located in the hollow interior of the guide sleeve 201, it can effectively prevent the needle tip of the front suture segment 101 from scratching the patient's puncture hole. The sleeve arrangement of the front suture segment 101 and the guide sleeve 201 of the present application can also prevent the suture direction from being offset due to rotation of the suture body 100, effectively improving operational stability and facilitating insertion into the abdominal cavity through the laparoscopic puncture hole and suturing from the intraperitoneal line to the subcutaneous direction.

[0049] Moreover, the present application divides the suture body 100 into at least a suture front section 101, and the suture front section 101 is combined with the suture middle section 102 to form a "J"-shaped needle as the end of the suture body 100, thereby facilitating medical personnel to directly pass the suture thread through the subcutaneous layer on one side of the patient's puncture hole without adjusting the angle of the suture body 100 again. The suture front section 101 is directly facing the subcutaneous layer of the patient, thereby improving the portability of the operation and eliminating the need to further adjust the angle of the suture device.

[0050] For ease of understanding, the working principle and usage method of the puncture hole suturing device for laparoscopic surgery of the present invention are discussed.

[0051] Before use, the suture body 100 and the sleeve 200 are not compressed, that is, the spring 300 is stretched, so that the suture front section 101 naturally extends from the guide kit 201. The medical staff directly inserts the surgical suture for suturing through the threading hole 104, and then compresses the suture body 100 to compress the spring 300. At this time, the suture front section 101 together with the surgical suture inserted into the threading hole 104 is received into the guide kit 201. The medical staff holds the suturing device with one hand, inserts the suturing device through the laparoscopic puncture hole and fixes it to the ideal suturing position. Preferably, the needle entry and exit points are 0.5 to 1 cm away from the wall of the opening to be sutured, and this distance is related to the suture middle section 102. While holding the suturing device through the first finger ring 106, the second finger ring 203 and the third finger ring 204, the medical staff pulls the suturing device and releases the spring 300 to expose the threading hole 104 and the surgical suture. The medical staff controls the suturing front section 101 of the suturing device to puncture one side of the patient's puncture hole, and exposes the suturing front section 101 and the surgical suture in the subcutaneous layer. The medical staff pulls out the surgical suture from the threading hole 104 with tweezers, and fixes the surgical suture with a vascular clamp. The medical staff compresses the spring 300 again to hold the suturing device and withdraw it from the laparoscopic puncture, and completes the suturing of the opposite side of the laparoscopic puncture hole in the same way. In this way, the medical staff can reel in the thread and tie it under the skin outside the patient's body. The entire operation process is simple and convenient. Compared with the existing hook-shaped laparoscopic puncture hole suturer, the utility model can improve the overall convenience, efficiency and practicality of the hook-shaped laparoscopic puncture hole suturer through design.

[0052] Throughout the text, the features referred to as “preferably” are merely optional and should not be understood as having to be set. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

[0053] It should be noted that the above-mentioned specific embodiments are illustrative only. Those skilled in the art may devise various solutions based on the disclosure of this utility model, and such solutions fall within the disclosure and protection scope of this utility model. Those skilled in the art should understand that the specification and drawings of this utility model are illustrative only and do not constitute limitations on the claims. The scope of protection of this utility model is defined by the claims and their equivalents.

Claims

1. A puncture hole suturing device for laparoscopic surgery, comprising: A suturing body (100), comprising a suturing front section (101) for inserting a suture into a patient's puncture hole and performing a suturing operation; A hollow cylindrical sleeve (200) is used to accommodate the suture body (100) to assist the suture body (100) in moving therein. It is characterized by: The extending direction of the suture front section (101) and the extending direction of the hollow cylindrical sleeve (200) are on different axes. The sleeve (200) is provided with a guide sleeve (201) which is connected to the sleeve (200) in a non-colinear or offset manner and is also in the form of a hollow cylinder. The guide sleeve (201) is used to guide the movement of the suture front section (101). The length of the guide kit (201) is set so that the guide kit (201) can temporarily cover the suture front section (101) when the suture front section (101) moves to a hidden position, so that the suture front section (101) and the guide kit (201) can enter the patient's body through the patient's puncture hole together.

2. The puncture hole suturing device for laparoscopic surgery according to claim 1, characterized in that: The device further comprises a spring (300) located between the suturing body (100) and the sleeve (200) for applying elastic force or tension to the suturing body (100) and the sleeve (200), wherein: When the spring (300) is in a naturally extended state, the needle tip of the front suture section (101) extends from the guide sleeve (201), so that the front suture section (101) is in a working position.

3. The puncture hole suturing device for laparoscopic surgery according to claim 2, characterized in that: The hollow cylindrical sleeve (200) can be relatively displaced relative to the suturing body (100), so that the spring (300) is in an expanded state due to a pulling force, or the spring (300) is in a compressed state due to a pushing force.

4. The puncture hole suturing device for laparoscopic surgery according to claim 3, characterized in that: The hollow cylindrical sleeve (200) can move in the reverse direction of the first direction (400) to move relative to the held suture body (100), so that the spring (300) is in a compressed state due to the pressure.

5. The puncture hole suturing device for laparoscopic surgery according to claim 2, characterized in that: When the suturing body (100) and the sleeve (200) are relatively displaced so that the spring (300) is compressed, the spring (300) is compressed to the extent that the needle tip of the suturing front section (101) and the threading hole (104) on the suturing front section (101) are located in the hollow interior of the guide sleeve (201) and are blocked by the guide sleeve (201), thereby causing the suturing front section (101) to move to a hidden position.

6. The puncture hole suturing device for laparoscopic surgery according to claim 3, characterized in that: The suturing body (100) includes a suturing rear section (103) located in the sleeve (200), and the end of the suturing rear section (103) opposite to the first direction (400) is provided with a first connecting portion (105) that interacts with the spring (300).

7. The puncture hole suturing device for laparoscopic surgery according to claim 6, characterized in that: The suture body (100) further comprises a suture middle section (102) for connecting the suture front section (101) and the suture rear section (103), wherein: The suture middle section (102) is in an arc-shaped structure.

8. The puncture hole suturing device for laparoscopic surgery according to claim 6, characterized in that: The suture body (100) further includes a first finger ring (106) located at an end portion of the suture body (100) opposite to the first direction (400) and connected to the suture rear section (103) via the first connecting portion (105) to apply tension or pressure to the suture rear section (103).

9. The puncture hole suturing device for laparoscopic surgery according to claim 1, characterized in that: A second finger ring (203) and a third finger ring (204) are respectively provided on both sides of the end portion of the sleeve (200) in the opposite direction of the first direction (400), which are connected to the sleeve (200) to apply tension or pressure to the sleeve (200), wherein: The second finger ring (203) and the third finger ring (204) are symmetrically arranged with the sleeve (200) as the axis.

10. The puncture hole suturing device for laparoscopic surgery according to claim 2, characterized in that: The spring (300) is arranged between the suturing body (100) and the sleeve (200) to increase operational damping.

Images