Biopsy forceps with adjustable jaw angle

Abstract

The utility model relates to the technical field of living tissue sampling forceps, a living tissue sampling forceps with adjustable jaw angle, including tongs and sleeve one, the inside fixed connection of sleeve one has the motor, the output fixed connection of motor has the pivot, the surface of pivot is equipped with sleeve two, the surface fixed connection of sleeve two has gear one, gear two and gear three. In the utility model, through the cooperation of motor, pivot, gear one and tooth block etc. structure, the rotation angle of the tongs head can be adjusted, and different gears have different rotation speeds, providing more choices for medical staff, and the position of the adjusted gear can be limited through the rocker, sliding slot, expansion plate, spring one etc. assembly, which ensures that the gear drives the tongs head to rotate more stably, when the operation space is limited, the tongs handle does not need to be rotated, only the tongs head needs to be rotated, and the applicability of the living tissue sampling forceps is increased.

Description

Technical Field

[0001] This utility model relates to the field of biopsy forceps technology, and in particular to a biopsy forceps with adjustable jaw angle. Background Technology

[0002] Biopsy forceps, a medical tool used to bite and extract samples from lesions within the abdominal cavity, are typically used in conjunction with an endoscope. The biopsy forceps (publication number CN151786378U) have a fixed jaw direction. When sampling from complex or multi-angled locations, medical personnel must hold the handle and rotate the forceps to achieve the sampling purpose. However, due to limited surgical space, the handle may bump against each other, increasing the difficulty of the surgery. To increase the applicability of movable biopsy forceps, designing a biopsy forceps with an adjustable jaw angle has become an urgent problem to be solved. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0004] This utility model adopts the following technical solution: a biopsy forceps with adjustable jaw angle, including a handle and a sleeve one. A motor is fixedly connected inside the sleeve one, and a rotating shaft is fixedly connected to the output end of the motor. A sleeve two is sleeved on the surface of the rotating shaft. Gear one, gear two, and gear three are fixedly connected to the surface of the sleeve two. A rocker arm is fixedly connected to the surface of the sleeve two. An adjustment component is fixedly connected to the surface of the sleeve one. The adjustment component includes a slide groove one, a telescopic plate is fixedly connected inside the slide groove one, and a spring one is fixedly connected to the side of the telescopic plate.

[0005] Preferably, a fixing block is fixedly connected inside the sleeve, a rotating assembly is fixedly connected to the surface of the fixing block, and a pliers head is fixedly connected to the surface of the rotating assembly. Here, the detachable pliers head design makes cleaning more convenient.

[0006] Preferably, the surface of the fixing block one is fixedly connected with toothed blocks, and there are three sets of toothed blocks, which are respectively misaligned with gear one, gear two, and gear three. Here, when the motor is running, at most one set of toothed blocks meshes with the gears, and gear one has the largest diameter while gear three has the smallest diameter. Designing gears of different sizes can change the rotation speed of the forceps head. When the surgical space is limited, there is no need to rotate the forceps handle, only the forceps head needs to be rotated, which increases the applicability of the movable tissue sampling forceps and provides diversified options.

[0007] Preferably, there are three sets of springs, which are evenly distributed inside the slide groove, and the rocker arm slides inside the slide groove. Here, by moving the rocker arm, the position of the gear on the sleeve is changed, and the interaction between the springs and the telescopic plate can fix the position of the rocker arm.

[0008] Preferably, the second sleeve has limit blocks fixedly connected above and below the first, second, and third gears, respectively. Here, the limit blocks can limit the movement of the three sets of gears on the second sleeve, preventing gear displacement during prolonged use.

[0009] Preferably, the rotating assembly includes a second spring, a first locking block, and a fixed shaft. One end of the second spring is fixedly connected to a second fixing block. A circular hole is formed on the surface of the first locking block. The second locking block is fixedly mounted on the surface of the fixed shaft, and a third fixing block is fixedly connected to the surface of the second locking block. Here, the cooperation of the first and second locking blocks allows for quick replacement of the pliers head by rotating the fixed shaft.

[0010] Preferably, there are two sets of locking blocks, with both sets of locking blocks fixed inside the sleeve three. This design of two sets of locking blocks better secures the pliers head to the slider two, reducing the risk of detachment.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the rotation angle of the forceps head can be adjusted through the cooperation of the motor, rotating shaft, gear 1 and gear block and other structures. At the same time, gears of different sizes have different rotation speeds, providing medical staff with more options. The position of the adjusted gear can be limited by components such as the crank handle, slide groove, telescopic plate and spring 1, which ensures that the gear drives the forceps head to rotate more smoothly. When the surgical space is limited, there is no need to rotate the forceps handle, only the forceps head needs to be rotated, which increases the applicability of the movable tissue sampling forceps.

[0013] 2. In this utility model, the design of the spring 2, the locking block 1, the fixed shaft, the locking block 1 and the locking block 2 not only facilitates the disinfection and cleaning of medical staff, but also facilitates maintenance and replacement. Attached Figure Description

[0014] Figure 1 A schematic diagram of a biopsy forceps with adjustable jaw angle is provided for this utility model;

[0015] Figure 2 A front view of a biopsy forceps with adjustable jaw angle is provided for this utility model;

[0016] Figure 3This utility model provides a structural schematic diagram of a gear in a vitiligo sampling forceps with an adjustable jaw angle.

[0017] Figure 4 This utility model provides a structural schematic diagram of the adjustment component in a vitiligo sampling forceps with adjustable jaw angle;

[0018] Figure 5 This invention presents an exploded structural diagram of the rotating component in a vitiligo sampling forceps with adjustable jaw angle.

[0019] Legend:

[0020] 1. Pliers handle; 2. Sleeve 1; 3. Motor; 4. Shaft; 5. Sleeve 2; 6. Gear 1; 7. Gear 2; 8. Gear 3; 9. Rocker arm; 10. Adjustment assembly; 11. Slide 1; 12. Telescopic plate; 13. Spring 1; 14. Fixing block 1; 15. Rotating assembly; 151. Spring 2; 152. Locking block 1; 153. Fixing shaft; 154. Fixing block 2; 155. Round hole; 156. Locking block 2; 157. Fixing block 3; 16. Pliers head; 17. Tooth block; 18. Limiting block. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1

[0024] Please see Figure 1-4This utility model provides a technical solution: a biopsy forceps with adjustable jaw angle, including a handle 1 and a sleeve 2. A motor 3 is fixedly connected inside the sleeve 2, and a rotating shaft 4 is fixedly connected to the output end of the motor 3. A second sleeve 5 is fitted onto the surface of the rotating shaft 4. Gears 6, 7, and 8 are fixedly connected to the surface of the second sleeve 5. A rocker arm 9 is fixedly connected to the surface of the second sleeve 5. An adjustment assembly 10 is fixedly connected to the surface of the first sleeve 2. The adjustment assembly 10 includes a slide groove 11, a telescopic plate 12 is fixedly connected inside the slide groove 11, and a spring 13 is fixedly connected to the side of the telescopic plate 12. A fixing block 14 is fixedly connected to the first sleeve 2, and toothed blocks 17 are fixedly connected to the surface of the fixing block 14. There are three sets of toothed blocks 17, which are respectively connected to gears 6, 7, and 8. The positions of gear 3 8 are staggered. When motor 3 is running, at most one set of toothed blocks 17 meshes with the gear. At the same time, gear 1 6 has the largest diameter and gear 3 8 has the smallest diameter. Designing gears of different sizes can change the rotation speed of the forceps head 16. When the surgical space is limited, there is no need to rotate the forceps handle 1, only the forceps head 16 needs to be rotated, which increases the applicability of the movable tissue sampling forceps and provides diversified options. The rotating component 15 is fixedly connected to the surface of the fixed block 14, and the forceps head 16 is fixedly connected to the surface of the rotating component 15. The design of the detachable forceps head 16 makes cleaning more convenient. The sleeve 2 5 is fixedly connected to the upper and lower parts of gear 1 6, gear 2 7 and gear 3 8 respectively. The limiting blocks 18 can limit the three sets of gears on the sleeve 2 5 to prevent gear displacement after long-term use.

[0025] Example 2

[0026] Please see Figure 5 The rotating assembly 15 includes a second spring 151, a first locking block 152, and a fixed shaft 153. One end of the second spring 151 is fixedly connected to a second fixing block 154. The surface of the first locking block 152 has a round hole 155. The surface of the fixed shaft 153 is fixedly mounted with a second locking block 156. The surface of the second locking block 156 is fixedly connected to a third fixing block 157. The cooperation between the first locking block 152 and the second locking block 156 allows for quick replacement of the new pliers head 16 by rotating the fixed shaft 153. There are two sets of first locking blocks 152 and second locking blocks 156. The two sets of first locking blocks 152 are fixed inside the sleeve 3. The design of two sets of locking blocks can better fix the pliers head 16 to the second slider and reduce the risk of falling off.

[0027] Working principle: When medical staff take samples from living tissue, they control the opening and closing of the forceps head 16 through the forceps handle 1. However, when the sampling forceps need to be rotated in a limited surgical space, the motor 3 can be turned on. The rotating shaft 4 drives the gears 6, 7, and 8 on the cannula 2 5 to rotate. Since the diameters of gears 6, 7, and 8 are arranged from large to small, when the rocker arm 9 is moved, the gears can be controlled to mesh with the gear blocks 17. It is worth noting that during the operation of the motor 3, at most one set of gears and gear blocks 17 are engaged, while the other two sets are staggered. After adjusting the speed, the telescopic plate 12 limits the rocker arm 9 in the slide groove 11. After using the sampling forceps, the forceps head 16 can be pressed down and then rotated. This separates the locking blocks 152 and 156, allowing for thorough disinfection and cleaning of the sampling forceps.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A biopsy forceps with adjustable jaw angle, comprising a handle (1) and a cannula (2), characterized in that: A motor (3) is fixedly connected inside the first sleeve (2). A rotating shaft (4) is fixedly connected to the output end of the motor (3). A second sleeve (5) is sleeved on the surface of the rotating shaft (4). Gear 1 (6), gear 2 (7), and gear 3 (8) are fixedly connected to the surface of the second sleeve (5). A rocker arm (9) is fixedly connected to the surface of the second sleeve (5). An adjustment assembly (10) is fixedly connected to the surface of the first sleeve (2). The adjustment assembly (10) includes a slide groove 1 (11). A telescopic plate (12) is fixedly connected inside the slide groove 1 (11). A spring 1 (13) is fixedly connected to the side of the telescopic plate (12).

2. The biopsy forceps according to claim 1, characterized in that: The sleeve (2) is fixedly connected to a fixing block (14), the surface of the fixing block (14) is fixedly connected to a rotating assembly (15), and the surface of the rotating assembly (15) is fixedly connected to a clamp head (16).

3. The biopsy forceps according to claim 2, characterized in that: The surface of the fixed block one (14) is fixedly connected with toothed blocks (17). There are three sets of toothed blocks (17), and the three sets of toothed blocks (17) are respectively misaligned with the positions of gear one (6), gear two (7) and gear three (8).

4. The biopsy forceps according to claim 1, characterized in that: There are three sets of springs (13), and the three sets of springs (13) are evenly distributed inside the slide groove (11). The rocker arm (9) slides inside the slide groove (11).

5. The biopsy forceps according to claim 1, characterized in that: The sleeve 2 (5) is fixedly connected to limit blocks (18) above and below the gear 1 (6), gear 2 (7) and gear 3 (8) respectively.

6. The biopsy forceps according to claim 2, characterized in that: The rotating assembly (15) includes a second spring (151), a first locking block (152), and a fixed shaft (153). One end of the second spring (151) is fixedly connected to a second fixing block (154). A circular hole (155) is opened on the surface of the first locking block (152). The second locking block (156) is fixedly installed on the surface of the fixed shaft (153). The third fixing block (157) is fixedly connected to the surface of the second locking block (156).

7. The biopsy forceps according to claim 6, characterized in that: There are two sets of the first (152) and second (156) card blocks, and the two sets of the first (152) card blocks are fixed inside the sleeve three.

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