Fine forceps for minimally invasive surgery

Abstract

The application provides a fine forceps for minimally invasive surgery, which comprises a main forceps handle, an outside surface of the angle adjusting ring is provided with an adjusting rod mechanism, and an outside surface of the adjusting rod mechanism is provided with a forceps head mechanism. Through the adjusting rod mechanism, in use, medical staff can increase the length of the forceps rod and the adjusting threaded rod by rotating the forceps rod and the adjusting threaded rod, then the medical staff tightly abut the upper connecting buckle and the lower connecting buckle, the first threaded hole and the second threaded hole are overlapped, the outer anti-skid pad is tightly abutted with the adjusting threaded rod, and the inner anti-skid pad is tightly abutted with the forceps rod, then the upper connecting buckle and the lower connecting buckle are fixedly connected through a pair of threaded rods, the working length of the separating forceps is accurately adjusted, important blood vessels and nerve structures can be effectively avoided when reaching and operating the target area, the accuracy and safety of the surgery are significantly improved, and the surgery time is greatly shortened.

Description

Technical Field

[0001] This invention relates to the technical field of precision forceps for minimally invasive surgery, and particularly to a precision forceps for minimally invasive surgery. Background Technology

[0002] Minimally invasive surgery, also known as minimally invasive surgical procedure, is a surgical treatment method that uses advanced technology to minimize surgical trauma. It uses precise surgical instruments and equipment, guided by imaging, laparoscopic techniques, and interventional techniques, to complete the removal, repair, and reconstruction of diseased tissues with minimal or no surgical incision. Compared with traditional open surgery, minimally invasive surgery has the advantages of less trauma, less pain, faster recovery, and fewer complications. Therefore, there is a particular need for a precision forceps for minimally invasive surgery.

[0003] However, the existing precision forceps for minimally invasive surgery are not adjustable in length, which makes them inadequate for handling deep areas and difficult to achieve ideal results. They also cannot meet the diverse needs of surgeons to quickly, conveniently and accurately separate tissues in different surgical scenarios. In actual use, this often leads to increased surgical difficulty, longer operation time, and increased surgical risks. Summary of the Invention

[0004] The purpose of this invention is to provide a precision forceps for minimally invasive surgery, which addresses the limitations of existing precision forceps for minimally invasive surgery mentioned in the background art. Due to their non-adjustable length, they are ineffective when dealing with deep tissues, making it difficult to achieve the desired results. Furthermore, such tools cannot meet the diverse needs of surgeons for rapid, convenient, and precise tissue separation in different surgical scenarios. In practical use, this often leads to increased surgical difficulty, prolonged surgical time, and increased surgical risks.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision forceps for minimally invasive surgery, comprising an index finger groove, a middle finger groove on the lower surface of the index finger groove, a ring finger sleeve on the lower surface of the middle finger groove, a little finger groove fixedly installed on the lower surface of the ring finger sleeve, a rotating roller on the inner surface of the index finger groove, an angle adjustment ring fixedly installed on the outer surface of the index finger groove, an adjustment column fixedly installed on the outer surface of the angle adjustment ring, an adjustment rod mechanism on the outer surface of the angle adjustment ring, a forceps head mechanism on the outer surface of the adjustment rod mechanism, a connecting hole on the outer surface of the index finger groove, a through hole on the top of the adjustment rod body, a tenon groove on the top of the index finger groove, a tenon on the top of the index finger groove, and an adjustment body on the top of the index finger groove;

[0006] The adjusting rod mechanism includes an adjusting threaded rod, a clamping rod, a threaded groove, an upper connecting buckle, a first threaded hole, a lower connecting buckle, a second threaded hole, an outer anti-slip pad, and an inner anti-slip pad. An adjusting threaded rod is fixedly installed on the outer surface of the angle adjusting ring. A clamping rod is threadedly connected to the outer surface of the adjusting threaded rod. A threaded groove is formed on the inner wall of the clamping rod. An upper connecting buckle is located at the top of the clamping rod, and a first threaded hole is formed at the top of the upper connecting buckle. A lower connecting buckle is located at the bottom of the clamping rod, and a second threaded hole is formed at the top of the lower connecting buckle. An outer anti-slip pad is located at the top of the lower connecting buckle, and an inner anti-slip pad is located at the top of the lower connecting buckle. The upper and lower connecting buckles are the same size and structure, and the upper connecting buckle is fixedly connected to the lower connecting buckle via the threaded rod.

[0007] Preferably, in the precision forceps for minimally invasive surgery according to claim 1, the diameter of the first threaded hole is consistent with the diameter of the second threaded hole, the outer anti-slip pad is tightly fitted with the forceps bar, and the inner anti-slip pad is tightly fitted with the adjusting threaded rod.

[0008] Preferably, the index finger groove is rotatably connected by a rotating roller, and the thumb finger sleeve and the ring finger finger sleeve have the same size and structure.

[0009] Preferably, the adjusting columns are provided in multiple identical sets, and the multiple sets of adjusting columns are distributed in a ring about the horizontal center line of the angle adjusting ring.

[0010] Preferably, the clamping head mechanism includes a fixed shaft, a first connecting block, a second connecting block, a first rotating shaft, a right clamping head, a second rotating shaft, a left clamping head, and a protective cover. The fixed shaft is fixedly installed on the inner side of the adjusting body. The first connecting block is rotatably installed on the outer surface of the fixed shaft. The second connecting block is rotatably installed on the outer surface of the fixed shaft. The first rotating shaft is rotatably installed at the end of the first connecting block away from the fixed shaft. The right clamping head is fixedly installed on the outer surface of the first rotating shaft. The left clamping head is rotatably installed at the end of the second connecting block away from the fixed shaft. The protective cover is fixedly installed on the outer surface of the clamping bar. The first connecting block and the second connecting block are the same size and structure, and the first connecting block is located above the second connecting block.

[0011] Preferably, the right and left jaws are identical in size and structure, the first and second rotating shafts are located on the inner surface of the protective cover, and both the first and second rotating shafts are rotatably mounted to the protective cover. The fixed shaft, the first connecting block, and the second connecting block do not contact the protective cover.

[0012] Preferably, the adjusting body is adapted to the connecting hole, and the diameters of the through hole and the tenon are consistent.

[0013] Compared with existing technologies, the beneficial effects of this invention are as follows: This precision forceps for minimally invasive surgery, through its unique angle-adjustable design with an angle adjustment ring and adjustment column, allows surgeons to precisely reach every corner of the surgical site during minimally invasive surgery, effectively avoiding important blood vessels and nerve structures. This greatly reduces the risk of accidental damage to surrounding tissues during the surgical procedure, significantly improving the precision and safety of the surgery, laying a solid foundation for the patient's rapid postoperative recovery. The angle of the dissecting forceps can be flexibly adjusted at any time according to actual needs, eliminating the need for frequent changes of surgical instruments, making the surgical operation smoother and more efficient, and significantly shortening the operation time. This not only reduces the time the patient spends under anesthesia, lowering the probability of anesthesia-related risks and complications, but also improves the utilization efficiency of the operating room and optimizes medical care. The system features a well-configured resource system with an adjustable lever mechanism. This allows for adjustments to the forceps length and replacement of the forceps head, making surgical procedures smoother and more efficient, shortening operation time. The angle adjustment function also provides a clearer and wider field of vision during surgery, enabling surgeons to observe the fine structures and lesions at the surgical site more closely. This allows for more precise tissue separation, cutting, and hemostasis, facilitating the complete removal of diseased tissue while better protecting the function of surrounding normal tissue. This improves surgical outcomes, reduces the likelihood of postoperative recurrence, and lowers the stringent skill and experience requirements of minimally invasive surgery. This allows more surgeons to quickly master the technique and successfully perform surgeries, contributing to the widespread promotion and application of minimally invasive surgery in medical institutions at all levels. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the main view structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the adjusting rod mechanism of the present invention. Figure 1 ;

[0017] Figure 4 This is a schematic diagram of the disassembled structure of the adjusting rod mechanism of the present invention. Figure 2 ;

[0018] Figure 5 This is a schematic diagram of the main and auxiliary clamp handle structure of the present invention;

[0019] Figure 6 This is a schematic diagram of the clamp head mechanism of the present invention;

[0020] Figure 7 This is a schematic diagram of the three-dimensional angle rotation structure of the present invention;

[0021] Figure 8This is a schematic diagram of the main and auxiliary clamp handles and adjusting rod of the present invention.

[0022] In the diagram: 1. Index finger groove; 2. Middle finger groove; 3. Ring finger sleeve; 4. Little finger groove; 5. Thumb sleeve; 6. Rotating roller; 7. Angle adjustment ring; 8. Adjustment column; 9. Adjustment rod mechanism; 901. Adjustment threaded rod; 902. Pliers bar; 903. Threaded groove; 904. Upper connecting buckle; 905. First threaded hole; 906. Lower connecting buckle; 907. Second threaded hole; 908. Outer anti-slip pad; 909. Inner anti-slip pad; 10. Pliers head mechanism; 1001. Fixed shaft; 1002. First connecting block; 1003. Second connecting block; 1004. First rotating shaft; 1005. Right pliers head; 1006. Second rotating shaft; 1007. Left pliers head; 1008. Protective cover; 11. Connecting hole; 12. Through hole; 13. Mortise groove; 14. Tenon; 15. Adjustment body. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example

[0024] Please see Figure 1-8 The present invention provides a technical solution: a precision forceps for minimally invasive surgery, including an index finger groove 1, a middle finger groove 2 on the lower surface of the index finger groove 1, a ring finger sleeve 3 on the lower surface of the middle finger groove 2, a little finger groove 4 fixedly installed on the lower surface of the ring finger sleeve 3, a rotating roller 6 on the inner surface of the index finger groove 1, an angle adjustment ring 7 fixedly installed on the outer surface of the index finger groove 1, an adjustment column 8 fixedly installed on the outer surface of the angle adjustment ring 7, an adjustment rod mechanism 9 on the outer surface of the angle adjustment ring 7, a forceps head mechanism 10 on the outer surface of the adjustment rod mechanism 9, a connecting hole 11 on the outer surface of the index finger groove 1, a through hole 12 on the top of the adjustment rod body 12, a tenon groove 13 on the top of the index finger groove 1, a tenon 14 on the top of the index finger groove 1, and an adjustment body 15 on the top of the index finger groove 1;

[0025] The adjusting rod mechanism 9 includes an adjusting threaded rod 901, a clamping rod 902, a threaded groove 903, an upper connecting buckle 904, a first threaded hole 905, a lower connecting buckle 906, a second threaded hole 907, an outer anti-slip pad 908, and an inner anti-slip pad 909. The adjusting threaded rod 901 is fixedly installed on the outer surface of the angle adjusting ring 7. The clamping rod 902 is threadedly connected to the outer surface of the adjusting threaded rod 901. The inner wall of the clamping rod 902 has a threaded groove 903. The top of the clamping rod 902 is provided with an upper connecting buckle 904, the top of which has a first threaded hole 905. The bottom of the clamping rod 902 is provided with a lower connecting buckle 906, the top of which has a second threaded hole 907. The top of the lower connecting buckle 906 is provided with an outer anti-slip pad 908, and the top of the lower connecting buckle 906 is provided with an inner anti-slip pad. 909. The upper connecting buckle 904 and the lower connecting buckle 906 have the same size and structure. The upper connecting buckle 904 is fixedly connected to the lower connecting buckle 906 through a threaded rod. Through the setting of the threaded rod 901, the clamp rod 902, the threaded groove 903, the upper connecting buckle 904, the first threaded hole 905, the lower connecting buckle 906, the second threaded hole 907, the outer anti-slip pad 908, and the inner anti-slip pad 909, the length of the clamp rod 602 can be adjusted and the clamp head replaced according to the specific situation during use, making the surgical operation smoother and more efficient, shortening the operation time. At the same time, the angle adjustment function helps to obtain a clearer and wider operating field during surgery, allowing doctors to observe the fine structure and lesion of the surgical site more carefully, thereby performing more precise tissue separation, cutting, and hemostasis operations, which is conducive to the thorough removal of diseased tissue.

[0026] Furthermore, the main forceps handle 1 includes an index finger groove 101, a middle finger groove 102, a ring finger sleeve 103, and a little finger groove 104. The index finger groove 101, middle finger groove 102, ring finger sleeve 103, and little finger groove 104 are arranged in order from top to bottom. With the setting of the index finger groove 101, middle finger groove 102, ring finger sleeve 103, and little finger groove 104, when in use, medical staff put their index and middle fingers into the corresponding grooves of the main forceps handle 1, put their ring finger into the ring finger sleeve 103, and place their little finger in the little finger groove 104. The main forceps handle 1 and the auxiliary forceps handle 2 are controlled by the opening and closing action of the fingers.

[0027] Furthermore, the diameter of the first threaded hole 905 is consistent with the diameter of the second threaded hole 907. The outer anti-slip pad 908 is tightly fitted with the clamp rod 902, and the inner anti-slip pad 909 is tightly fitted with the adjusting threaded rod 901. Through the setting of the first threaded hole 905 and the second threaded hole 907, during use, the outer anti-slip pad 908 is tightly fitted with the clamp rod 902, and the inner anti-slip pad 909 is tightly fitted with the adjusting threaded rod 901, so that the adjusting threaded rod 901 and the clamp rod 902 can be adjusted in length and can be fixed, thereby improving the stability between the adjusting threaded rod 901 and the clamp rod 902.

[0028] Furthermore, the index finger groove 1 is rotatably connected via the rotating roller 6. The thumb finger sleeve 5 and the ring finger finger sleeve 3 are the same size and structure. Through the setting of the thumb finger sleeve 5 and the rotating roller 6, the cooperation between the index finger groove 1 and the rotating roller 6 during use allows medical staff to adjust the forceps by opening and closing their fingers.

[0029] Furthermore, multiple sets of the adjustment columns 8 are provided, and the multiple sets of adjustment columns 8 are distributed in a ring about the horizontal center line of the angle adjustment ring 4. By setting the adjustment columns 8, the angle adjustment ring 7 can be rotated by moving the adjustment columns 8 during use, thereby driving the forceps head mechanism 9 to rotate and adjust the angle of the minimally invasive surgery.

[0030] Furthermore, the clamping head mechanism 10 includes a fixed shaft 1001, a first connecting block 1002, a second connecting block 1003, a first rotating shaft 1004, a right clamping head 1005, a second rotating shaft 1006, a left clamping head 1007, and a protective cover 1008. The fixed shaft 1001 is fixedly installed on the inner side of the adjusting body 15. The first connecting block 1002 is rotatably installed on the outer surface of the fixed shaft 1001. The second connecting block 1003 is rotatably installed on the outer surface of the fixed shaft 1001. The first rotating shaft 1004 is rotatably installed at the end of the first connecting block 1002 away from the fixed shaft 1001. The right clamping head 1005 is fixedly installed on the outer surface of the first rotating shaft 1004. The left clamping head 1007 is rotatably installed at the end of the second connecting block 1003 away from the fixed shaft 1001. The protective cover 1008 is fixedly installed on the outer surface of the clamping bar 902. The size and structure of the first connecting block 1002 and the second connecting block 1003 are similar. Similarly, the first connecting block 1002 is located above the second connecting block 1003. Through the arrangement of the fixed shaft 1001, the first connecting block 1002, the second connecting block 1003, the first rotating shaft 1004, the right clamp head 1005, the second rotating shaft 1006, the left clamp head 1007, and the protective cover 1008, the connection angle between the adjusting column 8 and the adjusting rod mechanism 9 can be changed during use. When the angle adjusting ring 7 rotates, the angle adjusting column 7 changes relative to the adjusting rod mechanism 9 by means of the cooperation between the adjusting column 7 and the connecting hole 11, the through hole 12, etc. The angle change is transmitted to the left and right clamp heads 1005 through the first connecting block 1002, the second connecting block 1003, and the fixed shaft 1001. The left clamp head 1007 rotates around the second rotating shaft 1006, and the right clamp head 1005 rotates around the first rotating shaft 1004, thereby realizing the angle adjustment of the clamp head mechanism 10 to meet the requirements of different angle operations in minimally invasive surgery.

[0031] Furthermore, the right jaw 1005 and the left jaw 1007 are identical in size and structure. The first rotating shaft 1004 and the second rotating shaft 1006 are located on the inner surface of the protective cover 1008, and both the first rotating shaft 1004 and the second rotating shaft 1006 are rotatably mounted to the protective cover 1008. The fixed shaft 1001, the first connecting block 1002 and the second connecting block 1003 do not contact the protective cover 1008. Through the right jaw 1005 and the left jaw 1007, during use, the fixed shaft 1001, the first connecting block 1002 and the second connecting block 1003 do not contact the protective cover 1008, so that the angle change is transmitted to the left and right jaws 1005 through the first connecting block 1002, the second connecting block 1003 and the fixed shaft 1001. The left jaw 1007 rotates around the second rotating shaft 1006, and the right jaw 1005 rotates around the first rotating shaft 1004, thereby realizing the angle adjustment of the jaw mechanism 10.

[0032] Furthermore, the adjusting body 15 is adapted to the connecting hole 11, and the diameters of the through hole 12 and the tenon 13 are consistent. Through the setting of the adjusting rod body 15 and the connecting hole 11, during use, the cooperation between the adjusting rod body 15 and the connecting hole 11, the cooperation between the through hole 12 and the tenon 13, and the cooperation between the through hole 12 and the tenon 13 and the tenon 14 can separate and replace the adjusting rod body 15 and the pliers, which is convenient for disassembly, installation and cleaning of the separation pliers.

[0033] Working Principle: Before use, medical personnel first check the surrounding environment and the condition of all parts of the device. If any problems are found, the entire device is repaired or replaced immediately. After inspection, the medical personnel insert their thumb into thumb sleeve 1, their index and middle fingers into index finger groove 5 and middle finger groove 102 respectively, their ring finger into ring finger sleeve 3, and their little finger into little finger groove 4. Through the opening and closing of the fingers, the clamps rotate relative to the rotating roller 6. The medical personnel can increase the length of the clamp rod 902 and the adjusting threaded rod 901 by rotating the clamp rod 902 and adjusting threaded rod 901. Then, the medical personnel tightly fit the upper connecting buckle 904 and the lower connecting buckle 906, aligning the first threaded hole 905 and the second threaded hole 907. The outer anti-slip pad 908 is tightly fitted to the adjusting threaded rod 901, and the inner anti-slip pad 909 is tightly fitted to the clamp rod 902. Finally, the upper connecting buckle 904 and the lower connecting buckle 906 are fixed together by a pair of threaded rods. Next, the working length of the dissecting forceps is precisely adjusted to ensure smooth access to and manipulation of the target area. At this point, medical personnel use their index finger to rotate the angle adjustment ring 7 by turning the adjustment column 5. The angle change is transmitted to the forceps head mechanism 10 through the first connecting block 1002, the second connecting block 1003, and the fixed shaft 1001. The left forceps head 1007 rotates around the second rotating shaft 1006, and the right forceps head 1005 rotates around the first rotating shaft 1004, thus achieving multi-angle flexible adjustment of the forceps head mechanism 10 to adapt to the requirements of minimally invasive surgery, precisely performing tissue separation, clamping, and other actions. This allows medical staff to precisely reach every corner of the surgical site during minimally invasive surgery, effectively avoiding important blood vessels and nerve structures. This significantly reduces the risk of accidental damage to surrounding tissues during the procedure, greatly improving surgical precision and safety. It also allows for more detailed observation of the surgical site's fine structures and lesions, enabling more precise tissue separation, cutting, and hemostasis. This facilitates the complete removal of diseased tissue while better protecting the function of surrounding normal tissues, improving surgical outcomes and reducing the likelihood of postoperative recurrence. The outer anti-slip pad 908 on the forceps 902... The inner anti-slip pads 909 work together to increase the friction between the hand and the forceps bar 902, effectively preventing the forceps from slipping during surgical operations and ensuring the stability and safety of the operation. The design of the tenon 13 and tenon 14 ensures the stability and precision of the connection between the components, so that the entire forceps can maintain structural stability even during frequent operations, avoiding loosening or displacement of components, ensuring the accuracy and reliability of the surgical operation, and facilitating disassembly and installation. After the operation is completed, the forceps can be disassembled for easy cleaning, making the operation convenient.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A fine forceps for minimally invasive surgery, comprising a forefinger recess (1), characterized in that: The lower surface of the index finger groove (1) is provided with a middle finger groove (2), the lower surface of the middle finger groove (2) is provided with a ring finger sleeve (3), the lower surface of the ring finger sleeve (3) is fixedly installed with a little finger groove (4), the inner surface of the index finger groove (1) is provided with a rotating roller (6), the outer surface of the index finger groove (1) is fixedly installed with an angle adjustment ring (7), the outer surface of the angle adjustment ring (7) is fixedly installed with an adjustment column (8), the outer surface of the angle adjustment ring (7) is provided with an adjustment rod mechanism (9), the outer surface of the adjustment rod mechanism (9) is provided with a plier head mechanism (10), the outer surface of the index finger groove (1) is provided with a connecting hole (11), the top of the index finger groove (1) is provided with a tenon groove (13), the top of the index finger groove (1) is provided with a tenon (14), the top of the index finger groove (1) is provided with an adjustment body (15), the outer surface of the adjustment body (15) is provided with a through hole (12). The adjusting rod mechanism (9) includes an adjusting threaded rod (901), a clamping rod (902), a threaded groove (903), an upper connecting buckle (904), a first threaded hole (905), a lower connecting buckle (906), a second threaded hole (907), an outer anti-slip pad (908), and an inner anti-slip pad (909). The adjusting threaded rod (901) is fixedly installed on the outer surface of the angle adjusting ring (7). The clamping rod (902) is threadedly connected to the outer surface of the adjusting threaded rod (901). The inner wall of the clamping rod (902) is provided with a threaded groove (903). The top of the clamping rod (902) is provided with an upper... The upper connecting buckle (904) has a first threaded hole (905) at its top, and a lower connecting buckle (906) is provided at the bottom of the clamp rod (902). The lower connecting buckle (906) has a second threaded hole (907) at its top, an outer anti-slip pad (908) at its top, and an inner anti-slip pad (909) at its top. The upper connecting buckle (904) and the lower connecting buckle (906) have the same size and structure. The upper connecting buckle (904) is fixedly connected to the lower connecting buckle (906) by a threaded rod.

2. The fine forceps according to claim 1, wherein: According to claim 1, a precision forceps for minimally invasive surgery is characterized in that: the diameter of the first threaded hole (905) is consistent with the diameter of the second threaded hole (907), the outer anti-slip pad (908) is tightly fitted with the forceps bar (902), and the inner anti-slip pad (909) is tightly fitted with the adjusting threaded rod (901).

3. The fine forceps according to claim 1, wherein: The index finger groove (1) is rotatably connected by a rotating roller (6).

4. The fine forceps according to claim 1, wherein: The adjustment column (8) is provided in multiple identical sets, and the multiple sets of adjustment columns (8) are distributed in a ring about the horizontal center line of the angle adjustment ring (7).

5. The fine forceps according to claim 1, wherein: The clamping head mechanism (10) includes a fixed shaft (1001), a first connecting block (1002), a second connecting block (1003), a first rotating shaft (1004), a right clamping head (1005), a second rotating shaft (1006), a left clamping head (1007), and a protective cover (1008). The fixed shaft (1001) is fixedly installed on the inner side of the adjusting body (15). The first connecting block (1002) is rotatably installed on the outer surface of the fixed shaft (1001), and the second connecting block (1003) is rotatably installed on the outer surface of the fixed shaft (1007). 002) A first rotating shaft (1004) is rotatably mounted at the end away from the fixed shaft (1001). A right clamp head (1005) is fixedly mounted on the outer surface of the first rotating shaft (1004). A left clamp head (1007) is rotatably mounted at the end of the second connecting block (1003) away from the fixed shaft (1001). A protective cover (1008) is fixedly mounted on the outer surface of the clamp bar (902). The first connecting block (1002) and the second connecting block (1003) are the same size and structure. The first connecting block (1002) is located above the second connecting block (1003).

6. The fine forceps according to claim 5, wherein: The right jaw (1005) and the left jaw (1007) are identical in size and structure. The first rotating shaft (1004) and the second rotating shaft (1006) are located on the inner surface of the protective cover (1008), and the first rotating shaft (1004) and the second rotating shaft (1006) are rotatably mounted to the protective cover (1008). The fixed shaft (1001), the first connecting block (1002) and the second connecting block (1003) do not contact the protective cover (1008).

7. The fine forceps according to claim 1, wherein: The adjusting body (15) is adapted to the connecting hole (11), the through hole (12) and the tenon (13) have the same diameter, and the through hole (12) and the tenon (13) are adapted to the tenon (14).

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