Laparoscopic needle holder

Abstract

The utility model belongs to the technical field of laparoscope needle holding, specifically a laparoscope needle holding forceps, including fixed clamp, the end of fixed clamp is connected with the clamping block, the inside rotation of clamping block is connected with the fixed link, and the side wall of fixed link is connected with the movable block, the end of movable block is connected with the movable clamp, and the movable clamp is set correspondingly with fixed clamp, the side wall of movable block is connected with the rope end block, the end of two rope end blocks is connected with the rope far from movable block, the end of fixed protruding block is provided with operating handle, the inside rotation of operating handle is connected with operating rod, the inside of operating handle is connected with the limiting rod, the utility model discloses through setting up two ropes, reduces the weight of laparoscope needle holding forceps, has strengthened laparoscope needle holding forceps stability, has solved the problem that fixed clamp and movable clamp cannot close after single rope damage, is favorable to reducing the hand tired feeling of medical staff.

Description

Technical Field

[0001] This utility model belongs to the field of laparoscopic needle holding technology, specifically a laparoscopic needle holding forceps. Background Technology

[0002] With advancements in technology, it has become possible to perform surgery through smaller incisions. Through a keyhole-sized incision, surgeons can insert tiny light sources, cameras, and surgical instruments, and guide the operation of these instruments by viewing images transmitted to a monitor. When this type of surgery is performed in the abdominal cavity, it is called laparoscopic surgery.

[0003] Most existing laparoscopic needle holders are made of stainless steel. During use, medical staff need to hold the handle tightly at all times. Due to the limitations of rigid materials, medical staff are prone to hand fatigue after using this type of laparoscopic needle holder for a long time, which can affect the performance of laparoscopic surgery and pose certain safety hazards.

[0004] Therefore, this utility model provides a laparoscopic needle holder. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A laparoscopic needle holder according to this utility model includes a fixed clamp; a clamping block is fixedly connected to the end of the fixed clamp; a fixed rod is rotatably connected inside the clamping block, and a movable block is fixedly connected to the side wall of the fixed rod; a movable clamp is fixedly connected to the end of the movable block, and the movable clamp is arranged corresponding to the fixed clamp; a rope end block is fixedly connected to the side wall of the movable block, and two rope end blocks are symmetrically arranged; ropes are fixedly connected to the ends of the two rope end blocks away from the movable block; a connecting tube is fixedly connected to the end of the clamping block away from the fixed clamp, and a limit tube is provided inside the connecting tube. The limiting tube has two ends fixed with limiting rings, and the ropes are slidably connected inside the limiting rings. The ends of the two ropes away from the fixing clamp are fixed with fixing protrusions, and the ends of the fixing protrusions are provided with operating handles. An operating rod is rotatably connected inside the operating handle. A limiting rod is fixed inside the operating handle, and the limiting rod is positioned corresponding to the positions of the two ropes. This step, by setting two ropes, reduces the weight of the laparoscopic needle holder, enhances the stability of the laparoscopic needle holder, solves the problem that the fixing clamp and movable clamp cannot close after a single rope is damaged, and helps reduce hand fatigue for medical staff.

[0007] Preferably, a fixing rotating block is fixedly connected to the side wall of the fixing rod, the two fixing rotating blocks are symmetrically arranged, and the clamping block has a groove corresponding to the position of the rubber anti-wear ring; a fixing groove is formed on the side wall of the two fixing rotating blocks, and a rubber anti-wear ring is provided inside the fixing groove; this step increases the friction by setting the fixing rotating block and the rubber anti-wear ring on the side wall of the fixing rod, thereby reducing the rotation speed of the movable block and the movable clamp, making the rotation of the movable clamp easier to operate, solving the operability problem of the laparoscopic needle holder, and improving the clamping effect of the laparoscopic needle holder.

[0008] Preferably, a fixing plate is fixedly connected to the bottom of the clamping block; a spring is fixedly connected to the top of the fixing plate, and the two springs are symmetrically arranged; the tops of the two springs are fixedly connected to the side wall of the movable block; this step, by setting the fixing plate and the spring, solves the problem of the rebound of the laparoscopic needle holder, avoids the situation where the laparoscopic needle holder cannot open freely, enhances the flexibility of the laparoscopic needle holder, and improves its practicality.

[0009] Preferably, the top of the fixed clamp has needle-clamping teeth, and the needle-clamping teeth are arranged in a linear array; the bottom of the movable clamp has needle-clamping teeth, and the needle-clamping teeth are arranged corresponding to the fixed clamp. This step, by opening needle-clamping teeth on the surfaces of the fixed clamp and the movable clamp to clamp the suture needle, and by achieving stress concentration through the structural bending of the fixed clamp and the movable clamp, helps to reduce the tilting of the needle during operation, avoids the needle from falling off, and enhances the stability of the laparoscopic needle holder.

[0010] Preferably, a fixing sleeve is fixedly connected to the side wall of the connecting tube; a fixing block is fixedly connected to the end of the fixing sleeve, and the end of the fixing block away from the fixing sleeve is fixedly connected to the side wall of the operating handle; this step, by setting the fixing sleeve and the fixing block to fix the operating handle, helps to prevent the operating handle from falling off or separating, enhances the structural stability of the laparoscopic needle holder, helps to extend its service life, and reduces safety hazards.

[0011] Preferably, the bottom of the operating rod is provided with an anti-slip sleeve; the anti-slip sleeve is made of medical-grade plastic, and anti-slip texture is provided on the side wall of the anti-slip sleeve; this step increases the friction coefficient of the operating rod surface by setting the anti-slip sleeve, thereby enhancing the friction force, which helps to prevent medical staff from slipping during the use of the laparoscopic needle forceps, and enhances the stability of the needle forceps.

[0012] Preferably, a connecting rod is fixedly connected inside the operating lever, and multiple connecting rods are arranged in a linear array. This step, by setting connecting rods inside the operating lever, maintains the structural strength of the operating lever while keeping its weight minimal, reduces deformation of the operating lever, and helps maintain the clamping effect of the fixed clamp and the movable clamp for a long time.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The laparoscopic needle holder described in this utility model reduces the weight of the laparoscopic needle holder by setting two ropes, enhances the stability of the laparoscopic needle holder, solves the problem that the fixed clamp and movable clamp cannot close after the single rope is damaged, and helps to reduce the hand fatigue of medical staff.

[0015] 2. The laparoscopic needle holder described in this utility model increases friction by setting a fixed rotating block and a rubber anti-wear ring on the side wall of the fixed rod, thereby reducing the rotation speed of the movable block and the movable clamp. This makes the rotation of the movable clamp easier to operate, solves the operability problem of the laparoscopic needle holder, and helps to improve the clamping effect of the laparoscopic needle holder. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the operating handle in this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting tube in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fixed rotating block in this utility model;

[0021] Figure 5 This is a schematic diagram of the fixing clip in this utility model.

[0022] In the diagram: 1. Fixed clamp; 2. Movable clamp; 3. Clamping pin teeth; 4. Movable block; 5. Fixed rod; 6. Clamping block; 7. Connecting tube; 8. Fixed sleeve; 9. Fixed block; 10. Operating handle; 11. Operating rod; 12. Anti-slip sleeve; 13. Connecting rod; 14. Fixed plate; 15. Limiting rod; 16. Limiting tube; 17. Rope; 18. Fixed protrusion; 19. Fixed rotating block; 20. Rubber wear-resistant ring; 21. Limiting ring; 22. Spring; 23. Rope end block. Detailed Implementation

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

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5 As shown in the embodiment of this utility model, a laparoscopic needle holder includes a fixing clamp 1; a clamping block 6 is fixedly connected to the end of the fixing clamp 1; a fixing rod 5 is rotatably connected inside the clamping block 6, and a movable block 4 is fixedly connected to the side wall of the fixing rod 5; a movable clamp 2 is fixedly connected to the end of the movable block 4, and the movable clamp 2 is arranged corresponding to the fixing clamp 1; a rope end block 23 is fixedly connected to the side wall of the movable block 4, and two rope end blocks 23 are symmetrically arranged; a rope 17 is fixedly connected to the ends of the two rope end blocks 23 away from the movable block 4; a connecting tube 7 is fixedly connected to the end of the clamping block 6 away from the fixing clamp 1, and the connecting tube 7 is connected to the end of the clamping block 6 away from the fixing clamp 1. The tube 7 has a limiting tube 16 inside, and the two ends of the limiting tube 16 are fixedly connected to limiting rings 21. The rope 17 is slidably connected inside the limiting rings 21. The ends of the two ropes 17 away from the fixing clamp 1 are fixedly connected to fixing protrusions 18, and the ends of the fixing protrusions 18 are provided with operating handles 10. The operating handle 10 is rotatably connected to an operating rod 11. The operating handle 10 is fixedly connected to a limiting rod 15 inside, and the limiting rod 15 is set to correspond to the positions of the two ropes 17. During operation, medical staff can control the operation by manipulating the operating rod 11, which is rotatably connected to the operating handle 10. The operation controls the opening and closing states of the fixed clamp 1 and the movable clamp 2. During this process, whenever the medical staff controls the operating lever 11 to bring it close to the end of the operating handle 10, the top of the operating lever 11 will contact the two ropes 17, causing the two ropes 17 to bend. With the help of the limiting rod 15, which is also set inside the operating handle 10, the operating lever 11 and the limiting rod 15 cooperate to make the two ropes 17 move away from the fixed clamp 1 and the movable clamp 2 inside the connecting tube 7 and the limiting tube 16, until the two symmetrically arranged rope end blocks 23 are pulled by the two ropes 17. Force is applied, and the movable block 4 will rotate through the rotational connection between the fixed rod 5 and the clamping block 6, simultaneously driving the movable clamp 2 to rotate until the movable clamp 2 contacts the fixed clamp 1. The limiting rings 21 located at both ends of the limiting tube 16 serve to fix the limiting tube 16, and the fixing protrusion 18 fixed between the rope 17 and the operating handle 10 serves to fix it. This step, by setting two ropes 17, reduces the weight of the laparoscopic needle holder, enhances the stability of the laparoscopic needle holder, and solves the problem that the fixed clamp 1 and the movable clamp 2 cannot close after the single rope 17 is damaged, which helps to reduce the hand fatigue of medical staff.

[0026] like Figure 4As shown, a fixed rotating block 19 is fixedly connected to the side wall of the fixed rod 5. The two fixed rotating blocks 19 are symmetrically arranged, and the clamping block 6 has a groove corresponding to the position of the rubber anti-wear ring 20. The side walls of the two fixed rotating blocks 19 are provided with fixing grooves, and the rubber anti-wear ring 20 is provided inside the fixing grooves. During operation, whenever the movable block 4 and the clamping block 6 rotate relative to each other, the fixed rotating block 19 will rotate inside the groove corresponding to the clamping block 6 and rub against the surface of the groove inside the clamping block 6. During the process, the rubber anti-wear ring 20 located inside the fixing groove on the surface of the fixed rotating block 19 rubs against the groove inside the clamping block 6. This step increases the friction by setting the fixed rotating block 19 and the rubber anti-wear ring 20 on the side wall of the fixed rod 5, thereby reducing the rotation speed of the movable block 4 and the movable clamp 2. This makes the rotation of the movable clamp 2 easier to operate, solves the operability problem of the laparoscopic needle holder, and helps to improve the clamping effect of the laparoscopic needle holder.

[0027] like Figure 2 and Figure 4 As shown, a fixing plate 14 is fixedly connected to the bottom of the clamping block 6; a spring 22 is fixedly connected to the top of the fixing plate 14, and the two springs 22 are symmetrically arranged; the tops of the two springs 22 are fixedly connected to the side wall of the movable block 4; during operation, whenever the laparoscopic needle holder finishes holding the needle, the operator can release the operating lever 11, thereby slackening the two ropes 17. After the two ropes 17 are slack, the two rope end blocks 23 lose the tension, while the spring 22 fixed between the fixing plate 14 and the rope end blocks 23 continues to apply an oblique tension to the movable block 4. The movable block 4, which loses the tension, rotates and separates the fixing clamp 1 from the movable clamp 2. This step, by setting the fixing plate 14 and the spring 22, solves the problem of the laparoscopic needle holder's rebound, avoids the situation where the laparoscopic needle holder cannot open freely, enhances the flexibility of the laparoscopic needle holder, and improves its practicality.

[0028] like Figures 1 to 5 As shown, the top of the fixed clamp 1 is provided with needle-clamping teeth 3, and the needle-clamping teeth 3 are arranged in a linear array; the bottom of the movable clamp 2 is provided with needle-clamping teeth 3, and the needle-clamping teeth 3 are arranged corresponding to the fixed clamp 1; during operation, the operator can place the suture needle between the fixed clamp 1 and the movable clamp 2, and clamp the suture needle through the corresponding needle-clamping teeth 3 arranged in the fixed clamp 1 and the movable clamp 2. With the help of the corresponding needle-clamping teeth 3 and the bending structure of the fixed clamp 1 and the movable clamp 2, the suture needle can be well fixed; this step, by opening needle-clamping teeth 3 on the surface of the fixed clamp 1 and the movable clamp 2 to clamp the suture needle, and by achieving stress concentration through the bending structure of the fixed clamp 1 and the movable clamp 2, helps to reduce the tilting of the clamped needle during operation, avoids the clamped needle from falling off, and enhances the stability of the laparoscopic needle holder.

[0029] like Figure 2 and Figure 3 As shown, a fixing sleeve 8 is fixedly connected to the side wall of the connecting tube 7; a fixing block 9 is fixedly connected to the end of the fixing sleeve 8, and the end of the fixing block 9 away from the fixing sleeve 8 is fixedly connected to the side wall of the operating handle 10; during operation, the operating handle 10 is fixed to the side wall of the fixing block 9, and the inner side wall of the fixing sleeve 8 is fixed to the side wall of the connecting tube 7. The fixing sleeve 8 can enhance the stability of the fixing block 9 through its own long structure, thereby maintaining the stability of the operating handle 10; this step of fixing the operating handle 10 by setting the fixing sleeve 8 and the fixing block 9 helps to prevent the operating handle 10 from falling off or separating, enhances the structural stability of the laparoscopic needle holder, helps to extend its service life, and reduces safety hazards.

[0030] like Figure 1 As shown, the bottom of the operating lever 11 is provided with an anti-slip sleeve 12; the anti-slip sleeve 12 is made of medical-grade plastic, and anti-slip textures are provided on the side wall of the anti-slip sleeve 12; during operation, the use of medical-grade plastic anti-slip sleeve 12 can effectively avoid the risk of infection. At the same time, when medical staff use the laparoscopic needle forceps, the anti-slip textures on the side wall of the anti-slip sleeve 12 can increase the coefficient of friction between the operating lever 11 and the hand; this step increases the coefficient of friction on the surface of the operating lever 11 by setting the anti-slip sleeve 12, thereby enhancing the friction force and helping to prevent medical staff from slipping when using the laparoscopic needle forceps, thus enhancing the stability of the needle forceps.

[0031] like Figure 2 As shown, a connecting rod 13 is fixedly connected inside the operating rod 11, and multiple connecting rods 13 are arranged in a linear array. During operation, the multiple operating rods 11 arranged in a linear array can provide internal support for the operating rod 11, thereby reducing the deformation of the operating rod 11. This step, by setting the connecting rod 13 inside the operating rod 11, maintains the structural strength of the operating rod 11 while keeping the operating rod 11 extremely light, reduces the deformation of the operating rod 11, and is conducive to maintaining the clamping effect of the fixed clamp 1 and the movable clamp 2 for a long time.

[0032] During operation, medical staff can control the opening and closing of the fixed clamp 1 and the movable clamp 2 using the operating rod 11, which is rotatably connected to the operating handle 10. During this process, whenever the medical staff moves the operating rod 11 closer to the end of the operating handle 10, the top of the operating rod 11 will contact the two ropes 17, causing them to bend. With the help of the limiting rod 15 also located inside the operating handle 10, the operating rod 11 and the limiting rod 15 work together to cause the two ropes 17 to move away from the fixed clamp 1 and the movable clamp 2 within the connecting tube 7 and the limiting tube 16, until the two symmetrically arranged rope end blocks 23 are subjected to the tension of the two ropes 17. Block 23 is pulled by two ropes 17. The movable block 4 will rotate through the rotational connection between the fixed rod 5 and the clamping block 6, and simultaneously drive the movable clamp 2 to rotate until the movable clamp 2 contacts the fixed clamp 1. The limiting rings 21 located at both ends of the limiting tube 16 play the role of fixing the limiting tube 16. The fixing protrusion 18 fixed between the rope 17 and the operating handle 10 plays a fixing role. Whenever the movable block 4 and the clamping block 6 rotate relative to each other, the fixed rotating block 19 will rotate inside the groove corresponding to the clamping block 6 and rub against the surface of the groove inside the clamping block 6. During the process, the rubber wear-resistant ring 20 located inside the fixing groove on the surface of the fixed rotating block 19 simultaneously rubs against the groove. The grooves inside clamp 6 create friction. After each laparoscopic needle-holding operation, the operator can release the operating lever 11, causing the two ropes 17 to slack. Once the two ropes 17 are slack, the two rope end blocks 23 lose their tension. The spring 22, fixed between the fixing plate 14 and the rope end blocks 23, continues to apply an oblique tension to the movable block 4. The movable block 4, now free of tension, rotates, causing the fixing clamp 1 and the movable clamp 2 to separate. The operator can then place the suture needle between the fixing clamp 1 and the movable clamp 2, and clamp the suture needle using the corresponding needle-clamping teeth 3 on the fixing clamp 1 and the movable clamp 2. The curved structure of the fixed clamp 1 and the movable clamp 2 allows the suture needle to be well fixed. The operating handle 10 is fixed to the side wall of the fixing block 9, and the inner side wall of the fixing sleeve 8 is fixed to the side wall of the connecting tube 7. The fixing sleeve 8 can enhance the stability of the fixing block 9 through its own long structure, thereby maintaining the stability of the operating handle 10. The anti-slip sleeve 12 made of medical plastic can effectively avoid the risk of infection. At the same time, when medical staff use the laparoscopic needle holder, the anti-slip texture on the side wall of the anti-slip sleeve 12 can increase the friction coefficient between the operating rod 11 and the hand. Multiple operating rods 11 arranged in a linear array can provide internal support for the operating rods 11, thereby reducing the deformation of the operating rods 11.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A laparoscopic needle holder, comprising a fixing clamp (1); characterized in that: The fixed clamp (1) has a clamping block (6) fixedly connected to its end; a fixed rod (5) is rotatably connected inside the clamping block (6), and a movable block (4) is fixedly connected to the side wall of the fixed rod (5); a movable clamp (2) is fixedly connected to the end of the movable block (4), and the movable clamp (2) is arranged corresponding to the fixed clamp (1); a rope end block (23) is fixedly connected to the side wall of the movable block (4), and the two rope end blocks (23) are arranged symmetrically; a rope (17) is fixedly connected to the ends of the two rope end blocks (23) away from the movable block (4); a connecting tube (7) is fixedly connected to the end of the clamping block (6) away from the fixed clamp (1). The connecting tube (7) is provided with a limiting tube (16) inside, and the two ends of the limiting tube (16) are fixedly connected to a limiting ring (21). The rope (17) is slidably connected inside the limiting ring (21). The ends of the two ropes (17) away from the fixing clamp (1) are fixedly connected to a fixing protrusion (18), and the end of the fixing protrusion (18) is provided with an operating handle (10). An operating rod (11) is rotatably connected inside the operating handle (10). A limiting rod (15) is fixedly connected inside the operating handle (10), and the limiting rod (15) is set to correspond to the position of the two ropes (17).

2. The laparoscopic needle holder according to claim 1, characterized in that: A fixing rotating block (19) is fixedly connected to the side wall of the fixing rod (5). The two fixing rotating blocks (19) are symmetrically arranged, and the clamping block (6) has a groove corresponding to the position of the rubber wear-resistant ring (20). A fixing groove is provided on the side wall of the two fixing rotating blocks (19), and a rubber wear-resistant ring (20) is provided inside the fixing groove.

3. The laparoscopic needle holder according to claim 1, characterized in that: The bottom of the clamping block (6) is fixedly connected to a fixing plate (14); the top of the fixing plate (14) is fixedly connected to a spring (22), and the two springs (22) are symmetrically arranged; the tops of the two springs (22) are fixedly connected to the side wall of the movable block (4).

4. The laparoscopic needle holder according to claim 1, characterized in that: The top of the fixed clamp (1) is provided with clamping teeth (3), and the clamping teeth (3) are arranged in a linear array; the bottom of the movable clamp (2) is provided with clamping teeth (3), and the clamping teeth (3) are arranged corresponding to the fixed clamp (1).

5. A laparoscopic needle holder according to claim 1, characterized in that: A fixing sleeve (8) is fixedly connected to the side wall of the connecting pipe (7); a fixing block (9) is fixedly connected to the end of the fixing sleeve (8), and the end of the fixing block (9) away from the fixing sleeve (8) is fixedly connected to the side wall of the operating handle (10).

6. A laparoscopic needle holder according to claim 1, characterized in that: The bottom of the operating lever (11) is provided with an anti-slip sleeve (12); the anti-slip sleeve (12) is made of medical plastic material, and anti-slip texture is provided on the side wall of the anti-slip sleeve (12).

7. A laparoscopic needle holder according to claim 6, characterized in that: The operating lever (11) is internally fixed with a connecting rod (13), and multiple connecting rods (13) are arranged in a linear array.

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