Grasping clamp with adjustable bending angle
By designing adjustable angle grippers, the operation difficulty and safety problems caused by the fixation of the clamp head angle in the prior art are solved, and fine operation in a small space and protection of patients are achieved.
Patent Information
- Application Number
- CN202323420453.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-15
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2033-12-15
AI Technical Summary
The existing gripper head is fixed at the angle, resulting in a large movement of the forceps when performing surgical operations in a small space, which increases the difficulty of operation and may cause scratches to the patient.
A gripping plier with adjustable bending angles including a first plier arm, a second plier arm, a first plier head and an angle adjustment mechanism are designed. Through the angle adjustment mechanism, the operator can fine-tune the angle between the first and second pliers to avoid a large movement of the pliers arm.
The fine angle adjustment of the forceps head in a small space is achieved, which improves the flexibility and safety of surgical operations and reduces the damage to patients.
Smart Images
Figure CN222426140U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a grasping forceps with adjustable bending angles. Background Art
[0002] In direct vision minimally invasive laparoscopic human surgery or other surgeries, it is necessary to grasp the necrotic or diseased tissues and organs in the human abdominal cavity to ensure that they will not detach or fall off so that the operation can proceed smoothly. Therefore, grasping forceps are needed to grasp them.
[0003] The angle of the clamp head of the existing grasping forceps is generally fixed. When the grasping forceps are moved into the patient's body to perform a grasping operation, if there is a local deviation in the position, the operator needs to move the clamp head to the specified position by grasping the clamp as a whole. However, this large-scale position adjustment is more troublesome to operate in a relatively small space within the operating range, and the large-scale movement of the grasping forceps can easily cause scratches to the patient. For this reason, we provide a grasping forceps with adjustable bending angle to solve the above problems. Utility Model Content
[0004] The utility model aims to provide a grasping pliers with adjustable bending angle in order to solve the problem that the pliers head of the grasping pliers cannot be adjusted locally.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grasping pliers with adjustable bending angle, comprising: a first pliers arm and a second pliers arm; a first pliers head, the first pliers head is arranged at one end of the first pliers arm, and the second pliers head is rotatably connected to the inner side of the first pliers head; an angle adjustment mechanism, located between the first pliers head and the first pliers arm, and used to adjust the angle of the first pliers head, the angle adjustment mechanism comprises a first rotating seat fixedly connected to one end of the first pliers head, the top of the first rotating seat is fixedly connected to a rotating shaft, and one end of the rotating shaft passes through the top of the first pliers arm and is rotatably connected to the first pliers arm, the outer wall of the rotating shaft is fixedly connected to a spur gear, and the top of the first pliers arm is provided with a rack meshing with the spur gear.
[0006] The angle adjustment mechanism is convenient for adjusting the angles of the first clamp head and the second clamp head, and the staff does not need to significantly adjust the position of the first clamp arm. The first clamp head and the second clamp head can be adjusted to the specified position by fine adjustment, thereby improving the overall practicality of the device.
[0007] As a further solution of the utility model: the angle adjustment mechanism also includes a fixed seat fixedly connected to the top of the first clamp arm, the inner side of the fixed seat is rotatably connected to a one-way threaded screw, the outer wall of the one-way threaded screw is threadedly connected to a U-shaped traction block, one end of the U-shaped traction block is fixedly connected to a connecting plate, one side of the connecting plate is fixedly connected to a sliding rod, one end of the first rotating seat is fixedly connected to the rack, and one end of the one-way threaded screw passes through the outside of the fixed seat and is fixedly connected to a ring.
[0008] The operator turns the ring to drive the one-way threaded screw to rotate, so that the device can adjust the angles of the first clamp head and the second clamp head close to the operator's hand, thereby providing convenience for the staff.
[0009] As a further solution of the utility model: a thread groove matching the one-way threaded screw is opened on the inner side of the U-shaped traction block, a rectangular guide rod is fixedly connected to the inner side of the fixed seat, the U-shaped traction block is sleeved on the outer wall of the rectangular guide rod, and a rectangular groove matching the rectangular guide rod is opened on the inner side of the U-shaped traction block.
[0010] When the one-way threaded screw is rotated to drive the U-shaped traction block to move along the direction of the rectangular guide rod, the U-shaped traction block is limited by the rectangular guide rod to prevent the U-shaped traction block from deflecting during the movement.
[0011] As a further solution of the utility model: one end of the second clamp arm is rotatably connected to the second rotating seat, the inner side of the second rotating seat is slidably connected to a sliding block, and one end of the sliding block is fixedly connected to the second clamp head.
[0012] As a further solution of the utility model: the outer walls on both sides of the sliding block are fixedly connected to limit blocks, the inner side of the second rotating seat is provided with limit sliding grooves matching the two limit blocks, and the sliding block is slidably connected to the second rotating seat through the limit blocks fixedly connected on both sides.
[0013] As a further solution of the utility model: a groove matching the first rotating seat is formed on the inner side of the first clamp arm.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] By setting up an angle adjustment mechanism, a hollow sleeve can be installed on the top of the first clamp arm, outside the rack and the spur gear, so that the rack will not cause harm to the patient during movement. First, when it is necessary to adjust the grasping angle of the first clamp head and the second clamp head, the operator can use his fingers to turn the ring to rotate it, thereby driving the U-shaped traction block to drive the connecting plate to move laterally through the one-way threaded screw, so that the sliding rod drives the rack to move in the direction of the spur gear, and then drives the spur gear to drive the first rotating seat to rotate through the rotating shaft, so as to fine-tune the angle of the first clamp head and the second clamp head, so as to grasp the damaged tissue in the patient's body, without the need for the staff to significantly adjust the position of the first clamp arm, thereby improving the overall practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model;
[0017] Figure 2 It is a schematic diagram of the structure of the first clamp head and the second clamp head of the utility model;
[0018] Figure 3 This is a cross-sectional view of the second rotating seat of the utility model;
[0019] Figure 4 It is a schematic diagram of the partial structure of the first clamp arm and the second clamp arm of the utility model;
[0020] Figure 5 For the utility model Figure 4 Enlarged view of point A in the middle.
[0021] In the figure: 1. first clamp arm; 2. second clamp arm; 3. first clamp head; 4. second clamp head; 5. sliding rod; 6. first rotating seat; 7. sliding block; 8. second rotating seat; 9. rotating shaft; 10. spur gear; 11. rack; 12. limit block; 13. connecting plate; 14. fixed seat; 15. circular ring; 16. one-way threaded screw; 17. U-shaped traction block; 18. rectangular guide rod. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1 to Figure 5In the embodiment of the utility model, a grasping pliers with adjustable bending angle includes: a first pliers arm 1 and a second pliers arm 2; a first pliers head 3, the first pliers head 3 is arranged at one end of the first pliers arm 1, and the inner side of the first pliers head 3 is rotatably connected to the second pliers head 4; an angle adjustment mechanism is located between the first pliers head 3 and the first pliers arm 1, and is used to adjust the angle of the first pliers head 3, the angle adjustment mechanism includes a first rotating seat 6 fixedly connected to one end of the first pliers head 3, the top of the first rotating seat 6 is fixedly connected to a rotating shaft 9, and one end of the rotating shaft 9 passes through the top of the first pliers arm 1 and is rotatably connected to the first pliers arm 1, and the outer wall of the rotating shaft 9 is fixedly connected to a spur gear 10, A rack 11 meshing with the spur gear 10 is provided at the top of the first clamp arm 1, and the angle adjustment mechanism also includes a fixed seat 14 fixedly connected to the top of the first clamp arm 1, a one-way threaded screw 16 is rotatably connected to the inner side of the fixed seat 14, and a U-shaped traction block 17 is threadedly connected to the outer wall of the one-way threaded screw 16, one end of the U-shaped traction block 17 is fixedly connected to a connecting plate 13, and one side of the connecting plate 13 is fixedly connected to a sliding rod 5, one end of the first rotating seat 6 is fixedly connected to the rack 11, one end of the one-way threaded screw 16 passes through the outside of the fixed seat 14 and is fixedly connected to a ring 15, and a groove matching the first rotating seat 6 is opened on the inner side of the first clamp arm 1.
[0024] In this embodiment: a hollow sleeve can be installed at the top of the first clamp arm 1, outside the rack 11 and the spur gear 10, and the rack 11 and the spur gear 10 are isolated from the outside by the sleeve, so that the rack 11 will not cause harm to the patient during the movement. First, when it is necessary to adjust the grasping angle of the first clamp head 3 and the second clamp head 4, the operator can use his fingers to turn the ring 15 to rotate, thereby driving the U-shaped traction block 17 to drive the connecting plate 13 to move laterally through the one-way threaded screw 16, so that the sliding rod 5 drives the rack 11 to move in the direction of the spur gear 10, and then drives the spur gear 10 to rotate the first rotating seat 6 through the rotating shaft 9, so as to fine-tune the angle of the first clamp head 3 and the second clamp head 4, so as to grasp the damaged tissue in the patient's body, without the need for the staff to significantly adjust the position of the first clamp arm 1, thereby improving the overall practicality of the device.
[0025] Please refer to Figure 5 A thread groove matching the one-way threaded screw 16 is opened on the inner side of the U-shaped traction block 17, a rectangular guide rod 18 is fixedly connected to the inner side of the fixed seat 14, the U-shaped traction block 17 is sleeved on the outer wall of the rectangular guide rod 18, and a rectangular groove matching the rectangular guide rod 18 is opened on the inner side of the U-shaped traction block 17.
[0026] In this embodiment: it is convenient for the one-way threaded screw 16 to rotate and drive the U-shaped traction block 17 to move along the direction of the rectangular guide rod 18, and the U-shaped traction block 17 is limited by the rectangular guide rod 18 to prevent the U-shaped traction block 17 from deflecting during the movement.
[0027] Please refer to Figure 1 to Figure 4 One end of the second clamp arm 2 is rotatably connected to the second rotating seat 8, and a sliding block 7 is slidably connected to the inner side of the second rotating seat 8. One end of the sliding block 7 is fixedly connected to the second clamp head 4, and the outer walls on both sides of the sliding block 7 are fixedly connected to the limiting blocks 12. The inner side of the second rotating seat 8 is provided with limiting sliding grooves matching the two limiting blocks 12, and the sliding block 7 is slidably connected to the second rotating seat 8 through the limiting blocks 12 fixedly connected on both sides.
[0028] In this embodiment: when the first rotating seat 6 drives the first pliers 3 to rotate, the second pliers 4 pulls the sliding block 7 to slide on the inner side of the second rotating seat 8, and at the same time, the sliding block 7 drives the second rotating seat 8 to rotate along with the first pliers 3, so that when the first pliers 3 is adjusting the angle, the sliding block 7 is always connected to the second rotating seat 8, so that when the operator moves the second pliers arm 2 away from the first pliers arm 1, the second rotating seat 8 pulls the sliding block 7 to drive the second pliers 4 to rotate, so that the first pliers 3 and the second pliers 4 can be opened, thereby facilitating grasping.
[0029] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A grasping pliers with adjustable bending angle, characterized in that: include: A first clamp arm (1) and a second clamp arm (2); A first clamp head (3), the first clamp head (3) being arranged at one end of the first clamp arm (1), and a second clamp head (4) being rotatably connected to the inner side of the first clamp head (3); An angle adjustment mechanism is located between the first clamp head (3) and the first clamp arm (1) and is used for adjusting the angle of the first clamp head (3). The angle adjustment mechanism comprises a first rotating seat (6) fixedly connected to one end of the first clamp head (3), a rotating shaft (9) is fixedly connected to the top of the first rotating seat (6), and one end of the rotating shaft (9) passes through the top of the first clamp arm (1) and is rotatably connected to the first clamp arm (1), a spur gear (10) is fixedly connected to the outer wall of the rotating shaft (9), and a rack (11) meshing with the spur gear (10) is provided on the top of the first clamp arm (1).
2. The grasping pliers with adjustable bending angle according to claim 1, characterized in that: The angle adjustment mechanism also includes a fixed seat (14) fixedly connected to the top of the first clamp arm (1), the inner side of the fixed seat (14) is rotatably connected to a one-way threaded screw (16), the outer wall of the one-way threaded screw (16) is threadedly connected to a U-shaped traction block (17), one end of the U-shaped traction block (17) is fixedly connected to a connecting plate (13), one side of the connecting plate (13) is fixedly connected to a sliding rod (5), one end of the first rotating seat (6) is fixedly connected to the rack (11), and one end of the one-way threaded screw (16) passes through the outside of the fixed seat (14) and is fixedly connected to a ring (15).
3. The grasping pliers with adjustable bending angle according to claim 2, characterized in that: The inner side of the U-shaped traction block (17) is provided with a thread groove matching the one-way threaded screw rod (16); the inner side of the fixed seat (14) is fixedly connected with a rectangular guide rod (18); the U-shaped traction block (17) is sleeved on the outer wall of the rectangular guide rod (18); the inner side of the U-shaped traction block (17) is provided with a rectangular groove matching the rectangular guide rod (18).
4. The grasping pliers with adjustable bending angle according to claim 1, characterized in that: One end of the second clamp arm (2) is rotatably connected to a second rotating seat (8), the inner side of the second rotating seat (8) is slidably connected to a sliding block (7), and one end of the sliding block (7) is fixedly connected to the second clamp head (4).
5. The grasping pliers with adjustable bending angle according to claim 4, characterized in that: The outer walls of both sides of the sliding block (7) are fixedly connected to limit blocks (12), and the inner side of the second rotating seat (8) is provided with limit sliding grooves matching the two limit blocks (12). The sliding block (7) is slidably connected to the second rotating seat (8) through the limit blocks (12) fixedly connected on both sides.
6. The grasping pliers with adjustable bending angle according to claim 1, characterized in that: A groove matching the first rotating seat (6) is provided on the inner side of the first clamp arm (1).