Puncture non-injury grasping forceps for minimally invasive surgery and use method of puncture non-injury grasping forceps

Abstract

The invention discloses a pair of puncturable non-invasive grasping forceps for minimally invasive surgery and a use method thereof, the pair of puncturable non-invasive grasping forceps comprises a puncture sleeve and grasping forceps, and the head of the puncture sleeve is set as a tip; the nipper comprises a nipper rod and a nipper head, the nipper rod penetrates through the puncture sleeve in a sliding mode, the nipper head is arranged at the head end of the nipper rod, and the nipper head is exposed out of the pointed end of the puncture sleeve; when the puncture sleeve is used for puncturing, the forceps head retracts into the puncture sleeve; after puncture is completed, the first elastic assembly controls the forceps head to extend out of the puncture sleeve; a pull rod is slidably arranged in the forceps rod; a connecting assembly is arranged between the end, close to the forceps head, of the pull rod and the forceps head, the other end of the pull rod extends out of the tail end of the forceps rod, a handle is arranged at the extending end, and a second elastic assembly is arranged between the pull rod and the forceps rod. The pull rod is moved by pressing the handle and drives the plier head to open through the connecting assembly; and the second elastic component drives the pull rod to return to the original position after the pressing is released, and the pull rod closes and clamps the tong head through the connecting component.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a puncture-resistant and non-destructive grasping forceps for minimally invasive surgery and a method for using the same. Background Art

[0002] Currently, puncture instruments (such as puncture clamps) and tissue grasping instruments (such as atraumatic grasping forceps) commonly used in minimally invasive surgery typically need to be used separately. This means that medical instruments need to be replaced during the procedure, which increases the number of steps and reduces efficiency. Furthermore, the puncture hole is generally large (typically 5-12 mm), causing significant trauma to the patient. This not only increases patient trauma but also may lead to complications such as bleeding and infection. Therefore, the existing art lacks an ultra-fine composite instrument that can both puncture and grasp tissue. Furthermore, current atraumatic grasping forceps lack a power assist mechanism, requiring the operator to maintain constant grip during and after grasping tissue. In particular, after grasping tissue, the operator's hand must maintain the same force application position to maintain the tissue in place. Prolonged procedures can lead to muscle soreness in the operator's hand (especially the thumb), and may even develop the occupational disease of "laparoscopic hand." Summary of the Invention

[0003] One of the main purposes of the present invention is to provide a puncture-proof and non-destructive grasping forceps for minimally invasive surgery. The present application can simultaneously realize the two functions of puncture and grasping, without the need to replace instruments during surgery, which greatly improves the operating efficiency; and the puncture hole is small, and at the same time, it can provide assistance when grasping tissue, avoiding the problem of "laparoscopic hand" caused by muscle soreness in the operator's hand.

[0004] The second main purpose of the present invention is to provide a method for using a puncture-proof and non-destructive grasping forceps for minimally invasive surgery. The present application can simultaneously realize the two functions of puncture and grasping, without the need to replace instruments during surgery, thereby greatly improving operational efficiency; at the same time, it can provide assistance when grasping tissue, avoiding the problem of "laparoscopic hand" caused by muscle soreness in the operator's hands.

[0005] In order to solve the above technical problems, the present invention is implemented as follows: a puncture-proof non-destructive grasping forceps for minimally invasive surgery, comprising a puncture sleeve and a grasping forceps, wherein the puncture sleeve is a hollow round rod structure, the head of the puncture sleeve is set as a pointed tip, and the outer diameter of the puncture sleeve is 3 mm; the grasping forceps comprises a forceps rod and a forceps head, the forceps rod is slidably inserted into the puncture sleeve along the length direction of the puncture sleeve, the end of the forceps rod close to the pointed tip is the head end, the forceps head is arranged at the head end of the forceps rod, and the forceps head is exposed outside the pointed tip of the puncture sleeve; when the puncture sleeve is puncturing, the forceps head retracts into the interior of the puncture sleeve; a first elastic component is provided inside the puncture sleeve After the puncture is completed, the first elastic component controls the pliers head to extend from the inside of the puncture sleeve; the tail end of the pliers rod extends from the tail of the puncture sleeve, and the pliers rod is a hollow rod-shaped structure, and a pull rod is provided inside the pliers rod for sliding along its length direction; a connecting component is provided between the end of the pull rod close to the pliers head and the pliers head, and the other end of the pull rod extends from the tail end of the pliers rod, and the protruding end is provided with a handle, and a second elastic component is provided between the pull rod and the pliers rod; pressing the handle moves the pull rod, and the pull rod drives the pliers head to open through the connecting component; releasing the pressure, the second elastic component drives the pull rod to return to its original position, and the pull rod controls the pliers head to close and clamp through the connecting component.

[0006] As a further technical solution, the tail of the puncture sleeve is provided with a connecting sleeve integrally formed therewith, and the first elastic component is arranged in the connecting sleeve. The first elastic component includes a first spring, a spring limit block and a sliding limit block. The spring limit block is fixedly arranged on the outer wall of the clamp rod, and the spring limit block is slidingly connected to the connecting sleeve; the sliding limit block is fixedly arranged at the end of the connecting sleeve away from the pointed head, the clamp rod is slidingly connected to the sliding limit block, the first spring sleeve is arranged on the outside of the clamp rod, and the two ends of the first spring are respectively abutted against the spring limit block and the sliding limit block.

[0007] As a further technical solution, the pliers head includes two clamping heads that are symmetrically arranged and have the same shape, and the clamping head includes an integrally formed clamping part and a connecting part, and the inner side of the clamping part is provided with a clamping pattern; the connecting part is provided with a first connecting hole at one end close to the clamping pattern, and a second connecting hole at the other end; the connecting assembly includes two connecting plates, the lower ends of the two connecting plates are rotatably connected to the pull rod, and the upper ends of the two connecting plates are respectively rotatably connected to the two first connecting holes; the second connecting holes on the two clamping heads are respectively rotatably connected to the two sides of the end of the pliers rod.

[0008] As a further technical solution, a second connecting groove is provided at one end of the pull rod close to the pliers head, and a second connecting pin is provided inside the second connecting groove. The second connecting pin is arranged in a direction perpendicular to the connecting plate, and the lower end of each connecting plate is rotatably connected to the second connecting pin.

[0009] As a further technical solution, an integrally formed mounting sleeve is fixedly provided at the tail end of the clamp rod, the interior of the mounting sleeve is communicated with the interior of the clamp rod, and an end face is formed at the connection between the mounting sleeve and the clamp rod; a sliding block is provided on the handle, and the end of the pull rod away from the clamp head extends from the mounting sleeve and is fixedly connected to the sliding block; the end of the sliding block away from the handle is slidably connected to the mounting sleeve; the mounting sleeve is located outside the tail end of the puncture sleeve, and when the handle is pressed, the end face of the mounting sleeve abuts against the tail end of the puncture sleeve.

[0010] As a further technical solution, the second elastic component includes a second spring, the second elastic component is located in the mounting sleeve, the second spring sleeve is arranged outside the pull rod, and the two ends of the second spring are respectively in contact with the end surface of the sliding block and the mounting sleeve.

[0011] As a further technical solution, the pointed tip forms an elliptical inclined surface, and the inclination angle of the inclined surface is 60 degrees.

[0012] As a further technical solution, the sliding limit block is threadedly connected to the connecting sleeve, and a screwing portion is provided at one end of the sliding limit block away from the first spring. The screwing portion is exposed outside the connecting sleeve, and anti-slip grooves are provided on the outer wall of the screwing portion.

[0013] As a further technical solution, the pull rod and the sliding block are threadedly connected; and the handle is ring-shaped.

[0014] A puncture-proof and non-destructive grasping forceps for minimally invasive surgery, using the above-mentioned puncture-proof and non-destructive grasping forceps for minimally invasive surgery, comprises the following steps:

[0015] S1. The operator holds the puncture sleeve and aligns the tip with the site to be punctured.

[0016] S2. Insert the puncture sleeve into the puncture site. During the puncture process, the forceps head is resisted by the human tissue and automatically and gradually retracts into the interior of the puncture sleeve. The first spring is compressed, and the puncture sleeve forms a puncture hole at the puncture site.

[0017] S3: The puncture is completed, the resistance of the human tissue disappears, the first spring pushes the clamp rod to reset, and the clamp rod drives the clamp head to automatically extend from the tip of the puncture sleeve;

[0018] S4. The operator's thumb passes through the annular handle and rotates the handle, causing the pull rod, clamp rod, and clamp head to rotate synchronously, adjusting the position of the clamp head relative to the tissue to be grasped;

[0019] S5. The operator presses the handle to move the pull rod toward the forceps head. The pull rod pushes the connecting assembly so that the two clamping parts are in an open state and are located outside the tissue to be grasped.

[0020] S6. The operator releases the pressure on the handle, and the second elastic component drives the pull rod to reset, and the pull rod moves away from the forceps head, and the two clamping heads close and clamp to grasp the tissue.

[0021] The beneficial effects of the present invention are:

[0022] 1. This application is applicable to laparoscopic appendectomy, cholecystectomy, pediatric minimally invasive surgery, and other surgeries requiring the assistance of non-invasive grasping forceps. By combining the puncture sleeve and grasping forceps into one, this application achieves dual-purposes, without interfering with each other. Tissue grasping can be performed directly after puncture, which reduces the number of surgical puncture holes and reduces patient trauma. Furthermore, a single instrument can be used to complete both puncture and grasping, simplifying the surgical steps and improving operational efficiency.

[0023] 2. The first elastic component provided in this application allows the forceps to retract and extend autonomously; while the second elastic component and the connection component enable the forceps to remain closed and clamped in their natural state. When grasping, the forceps can be opened by pressing the handle, and the forceps can be closed again by releasing the pressure. Therefore, the forceps have an assist function when extending the tip and grasping tissue, eliminating the need for the operator to maintain grip or pressure for a long time, thus preventing damage to the operator's hand muscles during prolonged surgery.

[0024] 3. In this application, the sliding limit block and the connecting sleeve are threadedly connected, and the sliding block of the handle and the pull rod are threadedly connected; therefore, by screwing the sliding limit block, the sliding limit block and the connecting sleeve can be disassembled, thereby removing the grasping forceps from the puncture sleeve; and the handle can also be removed from the pull rod, thereby facilitating the cleaning and maintenance of the puncture sleeve, grasping forceps and handle.

[0025] 4. The outer diameter of the puncture sleeve in this application is 3 mm, which can directly puncture the abdominal wall to form a pinhole-like hole, causing little damage to the patient, reducing the patient's trauma, and greatly reducing the risk of complications such as bleeding and infection caused by the puncture hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 This is a detailed internal view of the present invention in a puncture state;

[0029] Figure 3 This is an internal detail diagram of the clamping state of the present invention;

[0030] Figure 4 This is a detailed internal view of the pliers head in the open state of the present invention;

[0031] Figure 5 Schematic diagram of the head end of the clamp rod and the pull rod in the present invention;

[0032] Figure 6 Schematic diagram of the connection between the clamp rod and the pull rod and the clamp head in the present invention;

[0033] Figure 7 It is a partial detail diagram of the pliers head in the open state in the present invention;

[0034] Figure 8 This is a partial detail diagram of the closed state of the clamp head in the present invention. Description of Reference Numerals

[0035] 1. Piercing sleeve; 10. Pointed tip; 11. Connecting sleeve; 110. Inclined surface; 2. Grasping forceps; 20. Clamping rod; 200. First connecting groove; 201. First connecting pin; 202. Mounting sleeve; 203. End surface; 21. Clamping head; 210. Clamping head; 211. Clamping portion; 212. Connecting portion; 213. Clamping pattern; 214. First connecting hole; 215. Second connecting hole; 216. Through slot; 217 , clamp end; 3, pull rod; 31, second connecting groove; 32, second connecting pin; 4, first elastic component; 40, first spring; 41, spring limit block; 42, sliding limit block; 420, screwing part; 421, anti-slip groove; 422, limit ring; 5, second elastic component; 6, connecting piece; 60, connecting shaft; 61, protruding block; 62, recessed part; 7, handle; 701, sliding block; 702, threaded hole. DETAILED DESCRIPTION

[0036] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Example 1

[0038] like Figures 1-8 As shown, the present invention proposes a puncture-proof non-destructive grasping forceps for minimally invasive surgery, comprising a puncture sleeve 1 and a grasping forceps 2. The puncture sleeve 1 is a hollow round rod structure, the head of the puncture sleeve 1 is set as a pointed tip 10, and the outer diameter of the puncture sleeve 1 is 3 mm; in this embodiment, as shown in FIG. Figure 1As shown, an elliptical inclined surface 110 is formed at the tip 10, and the inclination angle of the inclined surface 110 is 60 degrees. The grasping forceps 2 includes a forceps rod 20 and a forceps head 21. The forceps rod 20 is slidably inserted into the puncture sleeve 1 along the length direction of the puncture sleeve 1. The end of the forceps rod 20 close to the tip 10 is the head end. The forceps head 21 is arranged at the head end of the forceps rod 20, and the forceps head 21 is exposed outside the tip 10 of the puncture sleeve 1. When the puncture sleeve 1 is puncturing, the forceps head 21 is retracted into the interior of the puncture sleeve 1. A first elastic component 4 is provided inside the puncture sleeve 1. After the puncture is completed, the first elastic component 4 controls the forceps head 21 to automatically extend from the interior of the puncture sleeve 1. As shown Figure 1-Figure 3 As shown, the tail of the puncture sleeve 1 is provided with a connecting sleeve 11 integrally formed therewith. The connecting sleeve 11 is a structure with a hollow interior and open at both ends. The connecting sleeve 11 is coaxially arranged with the puncture sleeve 1, and the interiors of the two are interconnected. In this embodiment, the tail end of the clamp rod 20 extends from the connecting sleeve 11. The first elastic component 4 is arranged in the connecting sleeve 11. The first elastic component 4 includes a first spring 40, a spring limit block 41 and a sliding limit block 42. In this embodiment, the spring limit block 41 is an annular structure. The spring limit block 41 is fixedly sleeved on the outer wall of the clamp rod 20, and the outer wall of the spring limit block 41 is slidably connected to the connecting sleeve 11. The sliding stopper 42 is also an annular structure and is fixedly mounted on the end of the connecting sleeve 11 away from the tip 10. In this embodiment, the outer wall of the sliding stopper 42 is provided with threads, and the inner wall of the end of the connecting sleeve 11 away from the pliers head 21 is also provided with corresponding threads. The sliding stopper 42 is threadedly connected to the connecting sleeve 11. The pliers rod 20 passes through the center of the sliding stopper 42 and is slidably connected to the sliding stopper 42. The first spring 40 is mounted on the outside of the pliers rod 20, and the two ends of the first spring 40 respectively abut the spring stopper 41 and the sliding stopper 42. In this embodiment, the end of the sliding stopper 42 away from the first spring 40 is provided with a screwing portion 420, which is exposed on the outside of the connecting sleeve 11. The outer wall of the screwing portion 420 is provided with anti-slip grooves 421. In this embodiment, a limiting ring 422 is provided at one end of the sliding limiting block 42 close to the spring limiting block 41, and the first spring 40 is sleeved on the outside of the limiting ring 422, thereby limiting the position of the first spring 40. In this embodiment, the pliers head 21 is exposed outside the tip 10 when not in use, such as Figure 1 and Figure 2 As shown, when puncturing, the operator holds the puncture sleeve 1 to puncture, and the clamp head 21 is subjected to the resistance of the human tissue and gradually moves toward the tail end of the puncture sleeve 1 and retracts into the interior of the puncture sleeve 1. In the process of retraction of the clamp head 21, the clamp rod 20 moves with the clamp head 21, as shown in FIG. Figure 3 As shown, the spring stopper 41 compresses the first spring 40. As a result, the tip 10 of the puncture sleeve 1 punctures into the abdominal cavity. When the puncture is completed, the resistance of the human tissue disappears, and under the action of the elastic force of the first spring 40, the clamp rod 20 moves to the Figure 3 Move to the left in the middle, the pliers head 21 is exposed to the outside of the tip 10 again, as shown in FIG. Figure 2 shown.

[0039] In addition, if Figure 2 and Figure 3 As shown, the tail end of the clamp rod 20 extends from the tail end of the puncture sleeve 1, that is, extends from the connecting sleeve 11. The clamp rod 20 is a hollow rod structure. A pull rod 3 is provided inside the clamp rod 20 for sliding along its length. A connecting component is provided between the end of the pull rod 3 close to the clamp head 21 and the clamp head 21. Figure 6-Figure 8 As shown, the pliers head 21 in this embodiment includes two clamping heads 210 that are symmetrically arranged and have the same shape. The clamping head 210 includes an integrally formed clamping portion 211 and a connecting portion 212. The inner side of the clamping portion 211 (i.e., the side where the two clamping portions 211 are close to each other) is provided with a clamping pattern 213. The provision of the clamping pattern 213 can increase the friction of the pliers head 21 when grasping tissue, thereby ensuring a more stable grasping. In addition, a first connecting hole 214 is provided at one end of the connecting portion 212 close to the clamping pattern 213, and a second connecting hole 215 is provided at the other end. The connecting assembly includes two connecting plates 6, and the two connecting plates 6 correspond to the two clamping heads 210 respectively. The lower ends of the two connecting plates 6 are both rotatably connected to the pull rod 3, and the upper ends of the two connecting plates 6 are respectively rotatably connected to the first connecting holes 214 on the corresponding clamping heads 210; the second connecting holes 215 on the two clamping heads 210 are respectively rotatably connected to the two sides of the end of the pliers rod 20. As shown Figure 5 As shown, the end of the clamp rod 20 near the clamp head 21 is provided with two symmetrical first connecting grooves 200, each of which is fixed with a first connecting pin 201. The second connecting holes 215 on the two clamping heads 210 are respectively rotatably connected to the corresponding first connecting pins 201. The end of the pull rod 3 near the clamp head 21 is provided with a second connecting groove 31, and a second connecting pin 32 is fixed inside the second connecting groove 31. The second connecting pin 32 is arranged in a direction perpendicular to the connecting piece 6 (i.e., perpendicular to the plane 217 on which the connecting piece 6 is located). The lower ends of the two connecting pieces 6 are both rotatably connected to the second connecting pin 32. Figure 6-Figure 8As shown, a through-slot 216 is provided at one end of the connecting portion 212 on each clamping head 210, near the clamping lines 213. A first connecting hole 214 is provided extending through the interior of the through-slot 216 in a direction perpendicular to the connecting portion 212 (the plane 217 in which the connecting portion 212 is located). The upper end of the connecting piece 6 corresponding to each clamping head 210 is located in the through-slot 216. A connecting shaft 60 extends through the upper end of the connecting piece 6 in a direction perpendicular to the connecting piece 6 (the plane 217 in which the connecting piece 6 is located), and the connecting shaft 60 is rotatably connected to the first connecting hole 214. A protrusion 61 is provided on the upper end of each connecting piece 6, near the corresponding clamping portion 211. The connecting shaft 60 is located on the protrusion 61. A recess 62 is provided on the upper end of the connecting piece 6, away from the protrusion 61.

[0040] In this embodiment, the opening and closing of the clamp head 21 can be achieved by moving the pull rod 3 along the length direction of the pull rod 3. Figure 8 As shown, the clamp head 21 is in a closed state, in which the two connecting pieces 6 are relatively overlapped. When the pull rod 3 is moved upward in the figure, that is, toward the head of the clamp rod 20, the pull rod 3 pushes the two connecting pieces 6. Under the restraining effect of the clamp rod 20 on the clamp head 210, the upper ends of the two connecting pieces 6 rotate to the sides, thereby making the two connecting pieces 6 form a V shape, as shown in FIG. Figure 7 As shown, at this time, the two connecting pieces 6 drive the two clamping heads 210 to be in an open state. When the pull rod 3 is pulled downward as shown in 7, that is, the pull rod 3 is moved toward the tail of the clamp rod 20, the connecting piece 6 rotates in the opposite direction, and the two clamping parts 211 are closed. Figure 8 As shown. This arrangement of the connecting piece 6 in this embodiment ensures a more stable structure. In addition, in this embodiment, the upper ends of the connecting pieces 6 are provided with a protruding block 61 and a recessed portion 62, respectively. Therefore, after the two connecting pieces 6 overlap, neither will affect the other's connecting portion 212.

[0041] like Figure 4As shown, in this embodiment, the other end of the pull rod 3 extends from the tail end of the clamp rod 20, and the extended end is provided with a handle 7, and the handle 7 is an annular structure. In this embodiment, the tail of the clamp rod 20 is fixedly provided with an integrally formed mounting sleeve 202, and the mounting sleeve 202 is a structure with a hollow interior and open at both ends. The interior of the mounting sleeve 202 is connected to the interior of the clamp rod 20. In this embodiment, the clamp rod 20 and the mounting sleeve 202 are both annular structures, and the two are coaxially arranged. The diameter of the mounting sleeve 202 is larger than the diameter of the clamp rod 20, and the mounting sleeve 202 forms an end face 203 with the connecting end of the clamp rod 20. A sliding block 701 is provided on the handle 7, and the end of the pull rod 3 away from the clamp head 21 extends from the mounting sleeve 202 and is fixedly connected to the sliding block 701; the end of the sliding block 701 away from the handle 7 is located inside the mounting sleeve 202 and is slidably connected to the mounting sleeve 202. In this embodiment, a threaded hole 702 is provided on the end of the sliding block 701 close to the pull rod 3, and the end of the pull rod 3 is threadedly connected to the threaded hole 702. As shown Figure 4 As shown, a second elastic component 5 is provided between the pull rod 3 and the clamp rod 20. After puncture is completed, the handle 7 is pressed toward the clamp head 21 to move the pull rod 3, pulling the clamp head 21 to open through the connecting component. When the pressure is released, the second elastic component 5 drives the pull rod 3 back to its original position, and the pull rod 3 controls the clamp head 21 to close and clamp through the connecting component. The second elastic component 5 includes a second spring, which is located in the mounting sleeve 202. The second spring is mounted on the outside of the pull rod 3, and the two ends of the second spring respectively abut against the sliding block 701 and the end surface 203 of the mounting sleeve 202.

[0042] In this embodiment, after the puncture is completed, the forceps head 21 extends out of the tip 10 of the puncture sleeve 1 under the action of the first elastic component 4. Figure 2 As shown, the entire pliers head 21 and the connection between the pliers head 21, the pliers rod 20 and the pull rod 3 all extend with a pointed tip 10, which will not affect the opening of the pliers head 21. The operator then holds the puncture sleeve 1, places his thumb on the handle 7, and rotates the handle 7 to rotate the pull rod 3. The rotation of the pull rod 3 drives the pliers rod 20 and the pliers head 21 to rotate together, so that the pliers head 21 is in the best position to grasp the tissue. The thumb then presses the handle 7 to move the pull rod 3 toward the pliers head 21, thereby opening the two clamping parts 211 as described above. The thumb then releases the pressure, and the pull rod 3 resets under the action of the second spring, and the two clamping heads 210 close to clamp the tissue to be grasped. Figure 4As shown, in this embodiment, the mounting sleeve 202 is located outside the connecting sleeve 11. When the handle 7 is pressed, the sliding limit block 42 abuts against the end face 203 of the mounting sleeve 202. In addition, in this embodiment, due to the configuration of the second elastic component 5, the second elastic component 5 is always in a compressed state, so that the handle 7 can tighten the pull rod 3. Therefore, the pliers head 21 is always in a closed and clamped state when not in operation. When it needs to be opened, the handle 7 is pressed to open it to the outside of the tissue to be grasped. After releasing the pressure, the pliers head 21 returns to the closed and clamped state again, thereby clamping the tissue. In this process, the operator only needs to press the handle 7 to open the pliers head 21 before clamping the tissue. After clamping, the thumb does not need to be in a force-applying state all the time, thus avoiding muscle soreness of the thumb.

[0043] This embodiment is suitable for laparoscopic appendectomy, cholecystectomy, pediatric minimally invasive surgery, and other procedures requiring the assistance of a non-invasive grasping forceps 2. By combining the puncture sleeve 1 and grasping forceps 2 into one, this embodiment achieves dual functions, without interfering with each other. Tissue grasping can be performed directly after puncture. This reduces the number of surgical puncture holes and minimizes patient trauma. Furthermore, a single instrument can be used to perform both puncture and grasping, simplifying the surgical procedure and improving operational efficiency. Furthermore, the first elastic component 4 provided in this embodiment allows the forceps head 21 to retract and extend autonomously. The second elastic component 5 and the connecting component ensure that the forceps head 21 remains closed and clamped in its natural state. When grasping is required, pressing the handle 7 opens the forceps head 21, and releasing the pressure causes the forceps head 21 to close again. Therefore, the forceps head 21 provides a power assist function both when the tip 10 is extended and when grasping tissue, eliminating the need for the operator to maintain a grip or apply pressure for extended periods of time, thus preventing muscle damage to the operator's hand during prolonged surgery. In addition, in this embodiment, the sliding limit block 42 is threadedly connected to the connecting sleeve 11, and the sliding block 701 of the handle 7 is threadedly connected to the pull rod 3; therefore, by screwing the sliding limit block 42, the sliding limit block 42 and the connecting sleeve 11 can be disassembled, thereby removing the grasping forceps 2 from the puncture sleeve 1; and the handle 7 can also be removed from the pull rod 3, thereby facilitating the cleaning and maintenance of the puncture sleeve 1, the grasping forceps 2, and the handle 7.

[0044] Example 2

[0045] The structure of this embodiment is the same as that of the first embodiment. The outer diameter of the puncture sleeve 1 in this embodiment is 3 mm, which can directly puncture the abdominal wall to form a pinhole-like hole, causing little damage to the patient, reducing the patient's trauma, and greatly reducing the risk of complications such as bleeding and infection caused by the puncture hole. In addition, the inner diameter of the puncture sleeve 1 in this embodiment is 2 mm. The end of the clamp head 21 of the grasping forceps 2 adopts a blunt design, such as Figure 6The end of the forceps head 21, away from the connection portion 212, is provided with an arcuate clamp tip 217. Both sides of the clamp tip 217 protrude beyond the clamping portion, providing a larger area and thus preventing tissue damage during puncture and surgical procedures. Furthermore, the width of the forceps head 21 in the closed state is 1.8 mm; the outer diameter of the forceps rod 20 is 1.9 mm, the inner diameter is 1.1 mm, and the outer diameter of the pull rod 3 is 1 mm. The dimensions provided in this embodiment are merely one example of applicable dimensions for this application and do not limit the scope of protection of this application.

[0046] Example 3

[0047] A method for using the puncture-proof non-destructive grasping forceps 2 for minimally invasive surgery, using the above-mentioned device, includes the following steps:

[0048] S1. The operator holds the puncture sleeve 1 and aligns the tip 10 with the site to be punctured;

[0049] S2. Insert the puncture sleeve 1 into the puncture site. During the puncture process, the forceps head 21 is automatically and gradually retracted into the interior of the puncture sleeve 1 due to resistance from the human tissue. The first spring 40 is compressed, and the puncture sleeve 1 forms a tiny puncture hole at the puncture site.

[0050] S3, the puncture is completed, the resistance of the human tissue disappears, the first spring 40 pushes the clamp rod 20 to return to its original position, and the clamp rod 20 drives the clamp head 21 to automatically extend from the tip 10 of the puncture sleeve 1;

[0051] S4. The operator's thumb passes through the annular handle 7 and rotates the handle 7. The pull rod 3, the clamp rod 20 and the clamp head 21 rotate synchronously to adjust the position of the clamp head 21 relative to the tissue to be grasped, and to make the clamp head 21 in the optimal position for the tissue to be grasped;

[0052] S5. The operator presses the handle 7 to move the pull rod 3 toward the forceps head 21. The pull rod 3 pushes the connecting assembly so that the two clamping parts 211 are in an open state and are located outside the tissue to be grasped.

[0053] S6. The operator releases the pressure on the handle 7, and the second elastic component 5 drives the pull rod 3 to reset, and the pull rod 3 moves away from the forceps head 21. The two clamping heads 210 close and clamp to grasp the tissue to assist the surgical operation.

[0054] The above description is only a preferred embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

Claims

1. A puncture-proof and non-destructive grasping forceps for minimally invasive surgery, characterized in that: The puncture sleeve comprises a puncture sleeve and a grasping forceps. The puncture sleeve is a hollow round rod structure. The head of the puncture sleeve is set as a pointed tip. The outer diameter of the puncture sleeve is 3 mm. The grasping forceps comprises a forceps rod and a forceps head. The forceps rod is slidably inserted into the puncture sleeve along the length direction of the puncture sleeve. The end of the forceps rod close to the pointed tip is the head end. The forceps head is set at the head end of the forceps rod and is exposed outside the pointed tip of the puncture sleeve. When the puncture sleeve is punctured, the forceps head retracts into the interior of the puncture sleeve. A first elastic component is provided inside the puncture sleeve. After the puncture is completed, the first elastic component controls the forceps head. Extending from the interior of the puncture sleeve; the tail end of the clamp rod extends from the tail of the puncture sleeve, the clamp rod is a hollow rod-shaped structure, and a pull rod is provided inside the clamp rod for sliding along its length direction; a connecting component is provided between the end of the pull rod close to the clamp head and the clamp head, the other end of the pull rod extends from the tail end of the clamp rod, and the extended end is provided with a handle, and a second elastic component is provided between the pull rod and the clamp rod; pressing the handle moves the pull rod, and the pull rod drives the clamp head to open through the connecting component; releasing the pressure, the second elastic component drives the pull rod to return to its original position, and the pull rod controls the clamp head to close and clamp through the connecting component.

2. The puncture-proof and non-destructive grasping forceps for minimally invasive surgery according to claim 1, characterized in that: The tail of the puncture sleeve is provided with a connecting sleeve integrally formed therewith, and the first elastic component is arranged in the connecting sleeve. The first elastic component includes a first spring, a spring limit block and a sliding limit block. The spring limit block is fixedly arranged on the outer wall of the clamp rod, and the spring limit block is slidingly connected to the connecting sleeve; the sliding limit block is fixedly arranged at the end of the connecting sleeve away from the pointed head, the clamp rod is slidingly connected to the sliding limit block, the first spring sleeve is arranged on the outside of the clamp rod, and the two ends of the first spring are respectively abutted against the spring limit block and the sliding limit block.

3. The puncture-proof and non-destructive grasping forceps for minimally invasive surgery according to claim 1, characterized in that: The pliers head includes two clamping heads that are symmetrically arranged and have the same shape, and the clamping head includes an integrally formed clamping part and a connecting part, and the inner side of the clamping part is provided with a clamping pattern; the connecting part is provided with a first connecting hole at one end close to the clamping pattern, and a second connecting hole at the other end; the connecting assembly includes two connecting plates, the lower ends of the two connecting plates are rotatably connected to the pull rod, and the upper ends of the two connecting plates are respectively rotatably connected to the two first connecting holes; the second connecting holes on the two clamping heads are respectively rotatably connected to the two sides of the end of the pliers rod.

4. The puncture-proof and non-destructive grasping forceps for minimally invasive surgery according to claim 3, characterized in that: A second connecting groove is provided at one end of the pull rod close to the pliers head, and a second connecting pin is provided inside the second connecting groove. The second connecting pin is arranged in a direction perpendicular to the connecting plate, and the lower end of each connecting plate is rotatably connected to the second connecting pin.

5. The puncture-proof and non-destructive grasping forceps for minimally invasive surgery according to claim 1, characterized in that: The tail of the clamp rod is fixed with an integrally formed mounting sleeve, the interior of the mounting sleeve is communicated with the interior of the clamp rod, and an end face is formed at the connection between the mounting sleeve and the clamp rod; a sliding block is provided on the handle, and the end of the pull rod away from the clamp head extends out from the mounting sleeve and is fixedly connected to the sliding block; the end of the sliding block away from the handle is slidably connected to the mounting sleeve; the mounting sleeve is located outside the tail end of the puncture sleeve, and when the handle is pressed, the end face of the mounting sleeve abuts against the tail end of the puncture sleeve.

6. The puncture-proof and non-destructive grasping forceps for minimally invasive surgery according to claim 5, characterized in that: The second elastic component includes a second spring, the second elastic component is located in the installation sleeve, the second spring sleeve is arranged outside the pull rod, and the two ends of the second spring are respectively in contact with the end surface of the sliding block and the installation sleeve.

7. The puncture-proof and non-destructive grasping forceps for minimally invasive surgery according to claim 1, characterized in that: The pointed tip forms an elliptical inclined surface, and the inclined surface has an inclination angle of 60 degrees.

8. The puncture-proof and non-destructive grasping forceps for minimally invasive surgery according to claim 2, characterized in that: The sliding limit block is threadedly connected to the connecting sleeve. An end of the sliding limit block away from the first spring is provided with a screwing portion, which is exposed outside the connecting sleeve. An outer wall of the screwing portion is provided with anti-slip grooves.

9. The puncture-proof and non-destructive grasping forceps for minimally invasive surgery according to claim 5, characterized in that: The pull rod is threadedly connected to the sliding block; and the handle is ring-shaped.

10. A method for using a puncture-proof and non-destructive grasping forceps for minimally invasive surgery, using the puncture-proof and non-destructive grasping forceps for minimally invasive surgery according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The operator holds the puncture sleeve and aligns the tip with the site to be punctured. S2. Insert the puncture sleeve into the puncture site. During the puncture process, the forceps head is resisted by the human tissue and automatically and gradually retracts into the interior of the puncture sleeve. The first spring is compressed, and the puncture sleeve forms a puncture hole at the puncture site. S3: The puncture is completed, the resistance of the human tissue disappears, the first spring pushes the clamp rod to reset, and the clamp rod drives the clamp head to automatically extend from the tip of the puncture sleeve; S4. The operator's thumb passes through the annular handle and rotates the handle, causing the pull rod, clamp rod, and clamp head to rotate synchronously, adjusting the position of the clamp head relative to the tissue to be grasped; S5. The operator presses the handle to move the pull rod toward the forceps head. The pull rod pushes the connecting assembly so that the two clamping parts are in an open state and are located outside the tissue to be grasped. S6. The operator releases the pressure on the handle, and the second elastic component drives the pull rod to reset, and the pull rod moves away from the forceps head, and the two clamping heads close and clamp to grasp the tissue.

Images