Laparoscopic surgery auxiliary structure

Abstract

The invention discloses a laparoscopic surgery auxiliary structure, and relates to the technical field of medical instruments. The laparoscopic surgery auxiliary structure comprises a traction piece and a puncture needle. A traction line is connected to one end of the traction piece, a traction part is arranged at the end, away from the traction line, of the traction piece, and the traction piece is used for entering the abdominal cavity of a patient through a trocar opening and is connected with structural tissue hindering an operation through the traction part; the puncture needle is provided with a needle tip, and a limiting part is arranged on the side wall close to the needle tip; according to the laparoscopic surgery auxiliary structure provided by the invention, when a laparoscopic surgery is carried out on a patient and a structural tissue hindering surgery is encountered, the traction piece can be stretched into the body of the patient and is connected with the structural tissue, then the skin of the patient is punctured again by using the puncture needle, and the traction line is hooked out, so that the traction piece is dragged; the device is used for preventing a pulling line from passing through a trocar opening, reducing the influence of the pulling line on other surgical instruments needing to pass through the trocar opening, and improving the surgical effect.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a laparoscopic surgery auxiliary structure. Background Art

[0002] During laparoscopic surgery, especially single-port laparoscopic surgery, when clearing the pelvic lymph nodes and para-aortic lymph nodes, the intestine usually blocks the surgical field.

[0003] In the related art, multi-port laparoscopic surgery requires an assistant to use separation forceps to push away the obstruction, but sometimes the obstruction is in multiple directions, and additional abdominal puncture holes are required to insert instruments to push away the obstruction. This practice not only increases the trauma of the operation, but also causes many inconveniences for the operator, such as challenges in operation coordination and prolonged operation time. Although single-port laparoscopic surgery has advantages in terms of aesthetics and trauma, the instruments used in its operation have the so-called "chopstick effect", that is, the instruments interfere with each other in a single port, making the operation more difficult. In single-port surgery, due to the limited number of instruments inserted and the easy mutual influence between instruments, the operator has to be more cautious during the operation to avoid the smooth progress of the operation due to collision of instruments. This effect is particularly obvious in delicate operations such as lymph node clearance, which will also cause great inconvenience to the operator. Summary of the invention

[0004] In view of this, the purpose of the present invention is to overcome the deficiencies in the related art. The present invention provides a laparoscopic surgery auxiliary structure.

[0005] The present invention provides the following technical solutions:

[0006] A laparoscopic surgery auxiliary structure is used for assisting in pulling structural tissues in the abdominal cavity of a patient that hinder the surgery. The laparoscopic surgery auxiliary structure comprises a pulling piece and a puncture needle.

[0007] A pulling wire is connected to one end of the pulling member, and a pulling portion is provided at the end of the pulling member away from the pulling wire. The pulling member is used to enter the patient's abdominal cavity through the trocar port and be connected to the structural tissue that hinders the operation by the pulling portion; the puncture needle has a needle tip, and a limiting portion is provided on the side wall of the puncture needle close to the needle tip; the puncture needle is used to puncture the patient's skin close to the pulling member, enter the patient's abdominal cavity and form a puncture hole; in this process, the limiting portion is used to guide and connect with the part of the pulling wire close to the pulling member, and then the puncture needle is withdrawn from the puncture hole, and the pulling wire is guided and pulled out of the puncture hole.

[0008] As a further improvement of the above technical solution, the pulling member includes a pulling hook or a pulling forceps, the pulling hook is used to hook the structural tissue in the patient's abdominal cavity that hinders the operation, and the pulling forceps is used to clamp the structural tissue in the patient's abdominal cavity that hinders the operation.

[0009] As a further improvement of the above technical solution, one end of the pulling hook is connected to the pulling wire, and the other end of the pulling hook is bent to form a pulling part, and the diameter of the pulling hook gradually decreases from the hook body to the hook tip.

[0010] As a further improvement of the above technical solution, the pulling forceps includes a forceps body, a first clamping piece, and a second clamping piece; the first clamping piece is fixedly arranged on the forceps body, and the second clamping piece is hingedly matched with the forceps body, and the first clamping piece and the second clamping piece are respectively provided with a first clamping part and a second clamping part, and the second clamping piece can swing relative to the first clamping piece and drive the second clamping part to move closer to or away from the first clamping part; the first clamping part and the second clamping part correspond to each other to form a pulling part.

[0011] As a further improvement of the above technical solution, the first clamping part is provided with a first friction tooth, and the second clamping part is provided with a second friction tooth corresponding to the first friction tooth, and the first friction tooth and the second friction tooth can mesh with each other.

[0012] As a further improvement of the above technical solution, a first limit rod and a second limit rod are provided on the side wall of the puncture needle close to the needle tip, one end of the first limit rod and the second limit rod are connected to the side wall of the puncture needle, the axes of the first limit rod and the second limit rod are at an acute angle with the axis of the puncture needle, and the ends of the first limit rod and the second limit rod facing away from the puncture needle are close to each other.

[0013] As a further improvement of the above technical solution, the axes of the first limiting rod, the second limiting rod and the puncture needle are all located in the same plane.

[0014] As a further improvement of the above technical solution, the distance between the first limiting rod and the needle tip is smaller than the distance between the second limiting rod and the needle tip, and the length of the first limiting rod is greater than the length of the second limiting rod.

[0015] As a further improvement of the above technical solution, the first limit rod and the second limit rod are respectively hingedly connected to the side walls of the puncture needle, and coil springs are respectively provided at the hinges. A tensioning rope is connected between the side walls of the first limit rod and the second limit rod. Under the action of the coil spring, the first limit rod and the second limit rod are offset in a direction away from the puncture needle and the tensioning rope is tensioned.

[0016] As a further improvement of the above technical solution, a sliding block is installed at the end of the puncture needle away from the needle tip, and the sliding block can slide relative to the puncture needle. A control rope is passed through the puncture needle, one end of the control rope is connected to the sliding block, and the other end of the control rope is connected to the tensioning rope.

[0017] As a further improvement of the above technical solution, the laparoscopic surgery auxiliary structure also includes a fixing seat, which is arranged on the operating table. The fixing seat has a connecting portion, and the fixing seat is connected to the pulling wire through the connecting portion.

[0018] As a further improvement of the above technical solution, a connecting ring is provided on the fixing seat, and a plurality of the connecting rings are evenly distributed relative to the circumference of the fixing seat, and the connecting rings are used to form a connecting portion.

[0019] Compared with the related art, the beneficial effects of the present invention are:

[0020] The laparoscopic surgery auxiliary structure provided in the present application, when assisting surgeons in performing laparoscopic surgery on patients, if the complex vascular network or other structural tissues inside the patient's abdominal cavity form an obstacle or obstruction to the predetermined surgical position, the medical staff can first use a clamping instrument to clamp the traction piece, send it into the patient's abdominal cavity through the trocar port, and carefully adjust its position to make it as close as possible to the structural tissues that cause surgical obstacles.

[0021] Then, the pulling part of the puller will establish connection with these structural tissues. Then, the medical staff will re-puncture the patient's skin near the current position of the puller, and use the puncture needle to re-enter the patient's abdominal cavity to form a new puncture hole.

[0022] When the puncture needle successfully penetrates the abdominal cavity, the limiter on it will be connected with the pulling wire on the pulling member for guidance. At this time, the puncture needle can be safely withdrawn from the puncture hole. At the same time, the pulling wire is slowly pulled out from the same puncture hole under the guidance of the puncture needle and finally connected to the fixing device outside the body, thereby effectively pulling the structural tissue in the abdominal cavity that hinders the operation.

[0023] This design not only avoids the possible interference between the traction wire and other surgical instruments when passing through the trocar opening, ensuring the smooth progress of the operation and the final effect, but also greatly simplifies the judgment and guidance process of the traction wire position by selecting the puncture position close to the traction member, reducing the direct contact between the traction wire and the patient's internal tissues, thereby reducing the patient's surgical pain and postoperative recovery burden.

[0024] Furthermore, medical staff can flexibly adjust the puncture position of the puncture needle relative to the traction member according to the actual needs of the operation. This flexibility ensures that when the traction member is pulling the structural tissue, the structural tissue that hinders the operation can be accurately moved away from the surgical position, thereby avoiding the risks and inconveniences that may be caused by repeated pulling and adjusting the position, and further improving the efficiency and safety of the operation.

[0025] In addition, it is worth mentioning that the puncture hole formed by the puncture needle on the patient's skin is extremely small, which not only reduces the degree of trauma to the patient, but also greatly reduces the difficulty and risk of postoperative healing, providing a strong guarantee for the patient's rapid recovery after surgery.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic structural diagram of a pulling member from one perspective in one embodiment of the present invention is shown;

[0029] Figure 2 A schematic structural diagram of a pulling member from one perspective in another embodiment of the present invention is shown;

[0030] Figure 3 Shows Figure 2 A structural cross-sectional view of a middle pulling member from one perspective;

[0031] Figure 4 A schematic diagram of the structure of a puncture needle from one perspective in one embodiment of the present invention is shown;

[0032] Figure 5 A schematic structural diagram of a fixing base from one perspective in one embodiment of the present invention is shown;

[0033] Figure 6 A schematic structural diagram of a pulling member in another embodiment of the present invention from one viewing angle is shown;

[0034] Figure 7 A structural cross-sectional view of a puncture needle from one perspective in one embodiment of the present invention is shown.

[0035] Description of main component symbols:

[0036] 100-pulling member; 200-pulling hook; 300-pulling forceps; 310-forceps body; 320-first clamping member; 321-first clamping part; 330-second clamping member; 331-telescopic rod; 332-clamping spring; 333-connecting rod; 334-second clamping part; 400-pulling wire; 500-puncture needle; 510-needle tip; 520-limiting part; 521-first limiting rod; 522-second limiting rod; 530-tensioning rope; 600-fixing seat; 610-connecting ring; 710-sliding block; 720-operating rope. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In the related art, during multi-hole laparoscopic surgery or single-hole laparoscopic surgery, a small hole needs to be punctured on the abdominal wall (skin and muscle layer of the abdomen) to insert surgical instruments for operation, wherein the small hole formed by abdominal puncture is a trocar. Trocar is a surgical instrument, which consists of a sharp puncture needle 500 and an outer sleeve, and is used to establish a passage in the abdomen for inserting an endoscope and other surgical instruments.

[0043] During laparoscopic surgery, the doctor uses a trocar to puncture the abdominal wall at a selected location in the patient's abdomen to create a passage. After the puncture is completed, the sharp part of the trocar will be removed, leaving the outer sleeve as a channel for subsequent surgical instruments to enter and exit. Through these trocar ports, the doctor can insert a laparoscope (a thin instrument with a camera) and other surgical tools into the abdominal cavity for diagnostic or therapeutic operations. The number and location of trocar ports depends on the specific type of surgery and the operation that needs to be performed.

[0044] Combination Figure 1 , Figure 2 , Figure 4 As shown, an embodiment of the present application provides a laparoscopic surgery auxiliary structure for assisting in pulling structural tissues in the abdominal cavity of a patient that hinder surgery. The laparoscopic surgery auxiliary structure includes a pulling member 100 and a puncture needle 500.

[0045] A pulling wire 400 is connected to one end of the pulling member 100, and a pulling portion is provided at the end of the pulling member 100 away from the pulling wire 400. The pulling member 100 is used to enter the patient's abdominal cavity through the trocar port and is connected to the structural tissue that hinders the operation by the pulling portion; the puncture needle 500 has a needle tip 510, and a limiting portion 520 is provided on the side wall of the puncture needle 500 close to the needle tip 510; the puncture needle 500 is used to puncture the patient's skin close to the pulling member 100, enter the patient's abdominal cavity and form a puncture hole; in this process, the limiting portion 520 is connected to the part of the pulling wire 400 close to the pulling member 100 for guidance, and then the puncture needle 500 is withdrawn from the puncture hole, and the pulling wire 400 is guided and pulled out of the puncture hole.

[0046] The laparoscopic surgery auxiliary structure provided in this embodiment, when assisting surgeons in performing laparoscopic surgery on patients, if the complex vascular network or other structural tissues inside the patient's abdominal cavity form an obstacle or cover to the predetermined surgical position, the medical staff can first use a clamping instrument to clamp the retraction member 100, send it into the patient's abdominal cavity through the trocar port, and adjust its position to make it as close as possible to the structural tissues that cause surgical obstacles.

[0047] Then, the pulling part of the pulling member 100 will establish connection with these structural tissues. Subsequently, the medical staff will re-perform the puncture operation on the patient's skin near the position of the pulling member 100, and use the puncture needle 500 to re-enter the patient's abdominal cavity to form a new puncture hole.

[0048] When the puncture needle 500 successfully penetrates the abdominal cavity, the stopper 520 on it will be connected with the pulling wire 400 on the pulling member 100 for guiding. At this time, the puncture needle 500 can be safely withdrawn from the puncture hole, and at the same time, the pulling wire 400 is pulled out from the same puncture hole under the guidance of the puncture needle 500, and finally connected to the fixing device outside the body, so as to effectively pull the structural tissue in the abdominal cavity that hinders the operation.

[0049] Such a design not only avoids the possible mutual interference between the pull wire 400 and other surgical instruments when passing through the trocar port, thus ensuring the smooth progress of the operation and the final effect, but also simplifies the judgment and guidance process of the position of the pull wire 400 by selecting the puncture position close to the traction member 100, and reduces the direct contact between the pull wire 400 and the patient's body tissue, thereby reducing the patient's surgical pain and postoperative recovery burden.

[0050] Furthermore, medical staff can adjust the puncture position of the puncture needle 500 relative to the traction member 100 according to the actual needs of the operation. This flexibility ensures that when the traction member 100 is pulling the structural tissue, the structural tissue that hinders the operation can be accurately moved away from the surgical position, thereby avoiding the risks and inconveniences that may be caused by repeated pulling and adjusting the position, and further improving the efficiency and safety of the operation.

[0051] In addition, it is worth mentioning that the puncture hole formed by the puncture needle 500 on the patient's skin is very small, which not only reduces the degree of trauma to the patient, but also greatly reduces the difficulty and risk of postoperative healing, providing a strong guarantee for the patient's rapid recovery after surgery.

[0052] In some specific embodiments, the pulling member 100 includes a pulling hook 200 or a pulling clamp 300. The pulling hook 200 is used to hook the structural tissues in the patient's abdominal cavity that hinder the operation. The original intention of its design is to achieve accurate hooking of those structural tissues in the patient's abdominal cavity that are difficult to reach or easy to slide through its unique curved shape. During the operation, when encountering structures such as blood vessels, ligaments or other soft tissues that may hinder the surgical path, the pulling hook 200 can use its sharp tip to gently and firmly penetrate and hook these tissues, thereby providing a stable pulling point for the doctor without damaging the surrounding tissues. The pulling clamp 300 is used to clamp the structural tissues in the patient's abdominal cavity that hinder the operation. The design of the pulling clamp 300 focuses more on clamping those relatively hard or large structural tissues in the patient's abdominal cavity through its sturdy jaws. These tissues may include but are not limited to muscle, bone fragments or some abnormally proliferating masses. The jaws of the pulling forceps 300 are usually equipped with a fine adjustment mechanism, allowing the doctor to adjust the clamping force and angle according to actual needs during the operation to ensure that the clamping process is both stable and safe.

[0053] By adopting these two different structures of the retractor 100, doctors have more choices and flexibility when facing different surgical situations. Whether dealing with small and fragile tissue structures or dealing with large and hard obstacles, the most suitable retractor 100 can be found, thereby ensuring that the retraction operation during the operation is both accurate and efficient. This design not only improves the success rate of the operation, but also significantly reduces the risk of complications caused by improper retraction, providing more favorable conditions for the patient's postoperative recovery.

[0054] In some specific embodiments, one end of the pulling hook 200 is connected to the pulling wire 400, and the other end of the pulling hook 200 is bent to form a pulling portion. The diameter of the pulling hook 200 from the hook body to the hook tip gradually decreases, making it easier to hook and connect with the structural tissue.

[0055] In some specific embodiments, the design of the traction hook 200 is ingenious and practical, and the traction portion is formed by bending a fine needle-shaped structure through a specific process. This design enables the traction portion to accurately hook the peritoneum and perform a stable and effective traction operation on it. During the operation, this stable traction can effectively prevent the detachment of the peritoneum, thereby greatly ensuring the reliability and safety of the surgical operation. Of course, the design of the traction hook 200 is not limited to the needle-shaped structure. In order to meet the needs of different surgical sites, the design of the traction portion has also been adjusted accordingly. Figure 6As shown, in some embodiments, the pulling portion of the pulling hook 200 is formed by bending a flat structure. This design makes the pulling portion more suitable for pulling fragile and important parts such as ureters or vascular tissues. By gently and steadily pulling these sensitive tissues, unnecessary damage to them during the operation can be effectively avoided, further improving the reliability and safety of this embodiment in practical applications.

[0056] In some specific embodiments, the traction forceps 300 includes a forceps body 310, a first clamping member 320, and a second clamping member 330; the first clamping member 320 is fixedly arranged on the forceps body 310, and the second clamping member 330 is hingedly matched with the forceps body 310; the first clamping member 320 and the second clamping member 330 are respectively provided with a first clamping portion 321 and a second clamping portion 334; the second clamping member 330 can swing relative to the first clamping member 320 and drive the second clamping portion 334 to move closer to or away from the first clamping portion 321; the first clamping portion 321 and the second clamping portion 334 correspond to each other to form a traction portion, thereby realizing the clamping connection of the structural tissue in the patient's abdominal cavity that hinders the operation, and the connection is reliable.

[0057] like Figure 3 As shown, a telescopic rod 331 is inserted into the pliers body 310, and a connecting rod 333 is hingedly connected to the end of the telescopic rod 331 close to the second clamping member 330. The other end of the connecting rod 333 is also connected to the second clamping member 330 by a hinged manner. Such a design enables the telescopic rod 331 to swing the second clamping member 330 relative to the first clamping member 320 through the transmission of the connecting rod 333 when the telescopic rod 331 performs telescopic movement relative to the pliers body 310.

[0058] Furthermore, a clamping spring 332 is provided between the end face of the telescopic rod 331 away from the second clamping member 330 and the clamp body 310. The existence of the clamping spring 332 enables the telescopic rod 331 to maintain a relatively static state with the clamp body 310 when no external force is applied. At the same time, due to the elastic force of the clamping spring 332, the second clamping portion 334 of the second clamping member 330 and the first clamping portion 321 of the first clamping member 320 are in relative contact and cooperation to form a stable clamping structure. Such a design not only ensures that the pulling forceps 300 can remain stable when not in use, but also provides a reliable guarantee for the clamping operation during surgery.

[0059] In addition, it is worth mentioning that the pull wire 400 is connected to the end of the telescopic rod 331 away from the second clamping member 330. In this way, during the operation, the doctor can control the telescopic movement of the telescopic rod 331 by pulling the pull wire 400, thereby adjusting the matching state between the second clamping member 330 and the first clamping member 320.

[0060] In particular, the elastic force provided by the clamping spring 332 is greater than the traction force pulling the tissue structure. Such a design ensures that during the operation, even if the tissue structure is pulled by the pulling wire 400, the clamping spring 332 can maintain sufficient elastic force, so that the second clamping portion 334 and the first clamping portion 321 can fit closely together to stably clamp the tissue structure.

[0061] When used specifically, the doctor will first use a clamping device to clamp the body 310 of the traction forceps 300 and extend it into the patient's body. When the traction forceps 300 is close to the tissue structure that needs to be pulled, the doctor can pull the traction line 400 to make the telescopic rod 331 telescopically move relative to the body 310 under the elastic force of the clamping spring 332. This movement will drive the second clamping part 334 to separate from the matching state of the first clamping part 321, so that the tissue structure can be smoothly placed between the two. Then, the doctor releases the traction line 400, and the elastic force of the clamping spring 332 will make the second clamping part 334 and the first clamping part 321 close to each other again and match together, so as to stably clamp the tissue structure. Such an operation process is not only convenient and efficient, but also greatly improves the success rate and safety of the operation.

[0062] In some specific embodiments, the first clamping portion 321 is provided with a first friction tooth, and the second clamping portion 334 is provided with a second friction tooth corresponding to the first friction tooth. The first friction tooth and the second friction tooth can engage with each other, so as to improve the clamping reliability of the pulling forceps 300 on the tissue structure.

[0063] In some specific embodiments, a first limiting rod 521 and a second limiting rod 522 are provided on the side wall of the puncture needle 500 near the needle tip 510, and one end of the first limiting rod 521 and the second limiting rod 522 are connected to the side wall of the puncture needle 500, and the axes of the first limiting rod 521 and the second limiting rod 522 are at an acute angle to the axis of the puncture needle 500, and the ends of the first limiting rod 521 and the second limiting rod 522 that are away from the puncture needle 500 tend to approach each other. Such a layout makes the space between the two an ideal channel for the traction line 400. After the puncture needle 500 is inserted into the patient's body, the pull wire 400 is adjusted to fall between the first limiting rod 521 and the second limiting rod 522. As the puncture needle 500 begins to retreat from the puncture hole, the pull wire 400 will move smoothly with the movement of the puncture needle 500 under the guidance of the first limiting rod 521 and the second limiting rod 522. This design not only greatly simplifies the surgical operation, but also significantly improves the safety and efficiency of the operation. Finally, when the puncture needle 500 is completely removed from the puncture hole, the pull wire 400 will also be smoothly brought out, thereby completing the pulling-out process of the pull wire 400.

[0064] In some specific embodiments, the axes of the first limiting rod 521, the second limiting rod 522 and the puncture needle 500 are all located in the same plane. Since there is a difference in the positions at which the pull wire 400 and the puncture needle 500 penetrate the patient's skin, there is an angle between the pull wire and the axis of the puncture needle 500. Through the above arrangement, after the pull wire 400 falls between the first limiting rod 521 and the second limiting rod 522, the pull wire 400 is always arranged at the angle between the first limiting rod 521 or the second limiting rod 522 and the outer wall of the puncture needle 500 during the process of being guided back by the puncture needle 500. This ingenious arrangement method not only ensures the stability and continuity of the pull wire 400 during the guiding process, but more importantly, it effectively prevents the pull wire 400 from accidentally slipping or deviating from the predetermined path during the guiding process.

[0065] In some specific embodiments, the first limiting rod 521 and the second limiting rod 522 are respectively hingedly connected to the side wall of the puncture needle 500, and a coil spring is respectively provided at the hinge. A tension rope 530 is connected between the side wall of the first limiting rod 521 and the side wall of the second limiting rod 522. The first limiting rod 521 and the second limiting rod 522 are deflected away from the puncture needle 500 under the action of the coil spring, and the tension rope 530 is tightened. Such a setting can make the pull line 400 fall into the first limiting rod 5 21 and the second limiting rod 522 will first push the tensioning rope 530, thereby driving the first limiting rod 521 and the second limiting rod 522 to swing towards each other at the same time, further limiting the pulling wire 400, and further avoiding the pulling wire 400 from accidentally slipping or deviating from the predetermined path during the guiding process; at the same time, due to the contraction of the first limiting rod 521 and the second limiting rod 522 during the retraction process of the puncture needle 500, it can effectively avoid scratching the patient's skin and causing the puncture hole to expand.

[0066] like Figure 7 As shown, in some specific embodiments, a sliding block 710 is installed at the end of the puncture needle 500 away from the needle tip 510, and the sliding block 710 can slide relative to the puncture needle 500. A control rope 720 is inserted into the puncture needle 500, one end of the control rope 720 is connected to the sliding block 710, and the other end of the control rope 720 is connected to the tension rope 530; specifically, when the puncture needle 500 is used to retract the pulling wire 400 to the outside of the patient's body, the first limit rod can be driven not only by the tensioning of the tension rope 530 521, the second limiting rod 522 limits the pulling wire 400, and the medical staff can also synchronously drive the sliding block 710 to slide relative to the puncture needle 500, so as to use the operating rope 720 to pull the tensioning rope 530, thereby driving the first limiting rod 521 and the second limiting rod 522 to deviate towards the direction close to the puncture needle 500 at the same time, providing a more reliable limit for the pulling rope and reducing the obstruction caused during the retraction process of the puncture needle 500, thereby further avoiding scratches on the patient's skin and causing the puncture hole to expand, reducing the pain caused to the patient.

[0067] In some specific embodiments, the distance between the first limiting rod 521 and the needle tip 510 is smaller than the distance between the second limiting rod 522 and the needle tip 510, the length of the first limiting rod 521 is greater than the length of the second limiting rod 522, and the width of the first limiting rod 521 is greater than the width of the second limiting rod 522; the increase in length enables the first limiting rod 521 to better guide and shield during the puncture process, while the increase in width further improves its shielding effect and structural stability; such a design brings significant advantages in actual operation. When the puncture needle 500 punctures the patient's skin, since the first limiting rod 521 is closer to the needle tip 510 and its size is larger, it can effectively shield the second limiting rod 522 located behind it. In this way, even if the patient's skin moves or deforms slightly during the puncture process, the second limiting rod 522 is unlikely to directly contact the skin, thereby greatly reducing the risk of skin scratches caused by the second limiting rod 522.

[0068] In some specific embodiments, one end of the tension rope 530 is connected to the end of the second limiting rod 522 away from the puncture needle 500, and the other end of the tension rope 530 is connected to the middle of the first limiting rod 521. Such a setting is conducive to using the puncture needle 500 to puncture the patient's skin. When the first limiting rod 521 contacts the puncture hole, it will shrink in the direction close to the puncture needle 500, and the tension rope 530 drives the second limiting rod 522 to shrink in the direction close to the puncture needle 500, further reducing the probability of scratching the patient's skin. In addition, the ends of the first limiting rod 521 and the second limiting rod 522 away from the puncture needle 500 are set as arc surfaces.

[0069] like Figure 5 As shown, in some specific embodiments, the laparoscopic surgery auxiliary structure also includes a fixing seat 600, and the fixing seat 600 is fixed on the operating bed by means of magnetism, snap connection, etc., and the fixing seat 600 has a connecting portion, and the fixing seat 600 is connected to the pulling wire 400 through the connecting portion, so as to ensure the traction stability of the pulling member 100.

[0070] In some specific embodiments, a connecting ring 610 is provided on the fixing seat 600, and a plurality of the connecting rings 610 are evenly distributed relative to the circumference of the fixing seat 600. The connecting rings 610 are used to form a connecting portion, which is convenient for medical staff to simultaneously wrap and connect multiple traction lines with the corresponding connecting rings 610, and the operation is convenient.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0072] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A laparoscopic surgery auxiliary structure, used to assist in pulling the structural tissue in the patient's abdominal cavity that hinders the surgery, characterized in that: include: A pulling member (100), one end of which is connected to a pulling wire (400), and an end of the pulling member (100) which is away from the pulling wire (400) is provided with a pulling portion, and the pulling member (100) is used to enter the abdominal cavity of a patient through a trocar port and to connect with a structural tissue that hinders surgery by using the pulling portion; A puncture needle (500), wherein the puncture needle (500) has a needle tip (510), and a limiting portion (520) is provided on the side wall of the puncture needle (500) near the needle tip (510); the puncture needle (500) is used to puncture the patient's skin near the traction member (100), enter the patient's abdominal cavity and form a puncture hole; during this process, the limiting portion (520) is connected to the portion of the traction wire (400) near the traction member (100) through a guide, and then the puncture needle (500) is withdrawn from the puncture hole, and the traction wire (400) is guided and pulled out of the puncture hole.

2. The laparoscopic surgery auxiliary structure according to claim 1, characterized in that: The pulling member (100) comprises a pulling hook (200) or a pulling clamp (300), wherein the pulling hook (200) is used to hook the structural tissue in the abdominal cavity of the patient that hinders the operation, and the pulling clamp (300) is used to clamp the structural tissue in the abdominal cavity of the patient that hinders the operation.

3. The laparoscopic surgery auxiliary structure according to claim 2, characterized in that: One end of the pulling hook (200) is connected to the pulling wire (400), and the other end of the pulling hook (200) is bent to form a pulling portion, and the diameter of the pulling hook (200) gradually decreases from the hook body to the hook tip.

4. The laparoscopic surgery auxiliary structure according to claim 2, characterized in that: The pulling forceps (300) include a forceps body (310), a first clamping member (320), and a second clamping member (330); the first clamping member (320) is fixedly arranged on the forceps body (310), and the second clamping member (330) is hingedly matched with the forceps body (310); the first clamping member (320) and the second clamping member (330) are respectively provided with a first clamping portion (321) and a second clamping portion (334); the second clamping member (330) can swing relative to the first clamping member (320) and drive the second clamping portion (334) to move closer to or away from the first clamping portion (321); the first clamping portion (321) and the second clamping portion (334) are matched with each other to form a pulling portion.

5. The laparoscopic surgery auxiliary structure according to claim 4, characterized in that: The first clamping portion (321) is provided with a first friction tooth, and the second clamping portion (334) is provided with a second friction tooth corresponding to the first friction tooth, and the first friction tooth and the second friction tooth are capable of meshing with each other.

6. The laparoscopic surgery auxiliary structure according to claim 1, characterized in that: A first limiting rod (521) and a second limiting rod (522) are provided on the side wall of the puncture needle (500) close to the needle tip (510); one end of the first limiting rod (521) and the second limiting rod (522) are connected to the side wall of the puncture needle (500); the axes of the first limiting rod (521) and the second limiting rod (522) are at an acute angle to the axis of the puncture needle (500); the ends of the first limiting rod (521) and the second limiting rod (522) facing away from the puncture needle (500) are close to each other.

7. The laparoscopic surgery auxiliary structure according to claim 6, characterized in that: The axes of the first limiting rod (521), the second limiting rod (522) and the puncture needle (500) are all located in the same plane.

8. The laparoscopic surgery auxiliary structure according to claim 7, characterized in that: The distance between the first limiting rod (521) and the needle tip (510) is smaller than the distance between the second limiting rod (522) and the needle tip (510), and the length of the first limiting rod (521) is greater than the length of the second limiting rod (522).

9. The laparoscopic surgery auxiliary structure according to any one of claims 6 to 8, characterized in that: The first limiting rod (521) and the second limiting rod (522) are respectively hingedly connected to the side walls of the puncture needle (500), and coil springs are respectively provided at the hinges. A tensioning rope (530) is connected between the side walls of the first limiting rod (521) and the second limiting rod (522). Under the action of the coil spring, the first limiting rod (521) and the second limiting rod (522) are offset in a direction away from the puncture needle (500) and the tensioning rope (530) is tensioned.

10. The laparoscopic surgery auxiliary structure according to claim 9, characterized in that: A sliding block (710) is installed at the end of the puncture needle (500) away from the needle tip (510), and the sliding block (710) can slide relative to the puncture needle (500). A control rope (720) is passed through the puncture needle (500), one end of the control rope (720) is connected to the sliding block (710), and the other end of the control rope (720) is connected to the tension rope (530).

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