Easily graspable biopsy forceps

Abstract

The utility model discloses an easy to catch live tissue sampling forceps belongs to the technical field of examination medical instrument. This kind of easy to catch live tissue sampling forceps, including the handle of forceps, the inboard fixed mounting of handle of forceps one end has the first rotating shaft, the outside rotation of first rotating shaft is connected with first forceps head and second forceps head, and the top of handle of forceps is equipped with the sliding mouth, and the inside both ends of sliding mouth are rotatably connected with threaded rod, and the outside of threaded rod is equipped with the sliding block, and the top of sliding block is installed with fixed axle, and the outside rotation of fixed axle is connected with first connecting rod, and one end of first connecting rod and one end of first forceps head are rotatably connected, and the outside rotation of fixed axle is connected with second connecting rod, and one end of second connecting rod and one end of second forceps head are rotatably connected, and the inside of handle of forceps is equipped with the cavity, the utility model discloses can effectively realize the automation control of forceps head opening and closing, ensure that the catching strength is even, avoid damaging live tissue because of the uneven manual power, improve sampling success rate and security, have higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an easy-grip live tissue sampling forceps. Background Technology

[0002] Biopsy forceps are a common medical examination and treatment method used endoscopically for diagnosis and treatment. By inserting an endoscope into the body, suspicious lesions are located from images, and tissue samples are taken for pathological biopsy and cytological examination, or the lesion tissue can be directly removed. This method has advantages such as small incisions, fewer surgical complications, and minimal impact on the patient.

[0003] Based on the above, the inventors have discovered the following problems: most current biopsy forceps require manual grasping during use and do not have an automatic grasping function, which makes grasping inconvenient and affects user experience.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide an easy-to-grip tissue sampling forceps, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this utility model is to provide an easy-to-grip biopsy forceps to solve the problem mentioned in the background art that most current biopsy forceps require manual gripping and do not have an automatic gripping function, which makes gripping inconvenient and affects the user's use.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] An easy-grip biopsy forceps includes a handle, a first rotating shaft fixedly mounted on the inner side of one end of the handle, a first clamp head and a second clamp head rotatably connected to the outer side of the first rotating shaft, a sliding mouth opened at the top of the handle, a sliding block threadedly connected to a threaded rod, threaded rods rotatably connected to both ends of the sliding mouth, a sliding block fitted onto the outer side of the threaded rods, a fixed shaft mounted at the top of the sliding block, a first connecting rod rotatably connected to the outer side of the fixed shaft, one end of the first connecting rod rotatably connected to one end of the first clamp head, a second connecting rod rotatably connected to the outer side of the fixed shaft, one end of the second connecting rod rotatably connected to one end of the second clamp head, and a cavity opened inside the handle, with a drive mechanism for rotating the threaded rods disposed inside the cavity.

[0008] Furthermore, the drive mechanism includes a drive shaft, the bottom end of which is rotatably connected to a retaining seat. The bottom end of the retaining seat is fixedly connected to the bottom wall of the cavity. One end of the threaded rod penetrates the side wall of the cavity. Both one end of the threaded rod and the outer side of the drive shaft are fitted with bevel gears. The bevel gears of the threaded rod mesh with the bevel gears of the drive shaft. The threaded rod and the drive shaft are connected by bevel gear transmission.

[0009] The beneficial effects of adopting the above-mentioned further solution are that, through the cooperation between the transmission shaft and the retaining seat in the drive mechanism, the transmission shaft is kept rotating stably. The bevel gear converts the rotation of the transmission shaft into the rotation of the threaded rod, changing the direction of power transmission. This allows the motor to be installed at the top of the pliers handle, optimizing the equipment layout and avoiding the drive components from occupying the pliers head operating space. At the same time, the bevel gear transmission is smooth, ensuring that the threaded rod rotates at a uniform speed, thereby making the slider move smoothly, the pliers head opening and closing accurately, and improving the stability of the sampling operation.

[0010] Furthermore, a motor is mounted on the top of the clamp handle, and the output end of the motor is fixedly connected to the top of the drive shaft.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the motor at the top of the forceps handle drives the transmission shaft to rotate, providing automated power for the opening and closing of the sampling forceps. This eliminates the need for operators to manually squeeze the forceps handle, making it particularly suitable for long-term or fine sampling scenarios. It reduces hand fatigue, and the motor speed is controllable. The opening and closing speed and force of the forceps head can be adjusted according to the tissue hardness to avoid excessive squeezing and damage to living tissue, thereby improving the sampling quality.

[0012] Furthermore, the maximum angle at which the first and second jaws can be rotated open is 120°.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the maximum opening angle of the first and second clamp heads is 120°. Compared with sampling forceps with a smaller opening angle, it can adapt to the sampling needs of larger volume or more dispersed biopsy tissues, expand the sampling coverage area, and at the same time, the 120° angle can avoid the clamp heads from opening too much, which would lead to structural instability, ensure the clamp heads' wrapping of the tissue when grasping, and prevent tissue slippage during the sampling process.

[0014] Furthermore, slide rods are slidably connected to both sides of the slider, and one side of each slide rod is fixedly connected to the side wall of the slide opening.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the sliding rods connected to both sides of the slider guide and limit the movement of the slider, preventing the slider from deviating or jamming when the threaded rod rotates, ensuring that the slider always moves in a straight line along the sliding mouth, thereby enabling the first connecting rod and the second connecting rod to drive the clamp head to open and close smoothly, avoiding the clamp head deviation that would cause sampling position deviation, and improving the accuracy of operation.

[0016] Furthermore, a handle is attached to the other end of the pliers.

[0017] The beneficial effects of adopting the above-mentioned further solution are that the grip at the other end of the clamp handle optimizes the grip feel, increases the contact area between the hand and the clamp handle, and improves grip stability. Especially when the angle needs to be adjusted during the sampling process, the grip can provide a more comfortable point of force application, avoid hand slippage, and ensure that the operator can accurately control the position of the sampling clamp, further improving the safety and convenience of the sampling operation.

[0018] Compared with existing technologies, the beneficial effects of this utility model are as follows: This easy-grip tissue sampling forceps provides a gripping and operating basis through the handle. The first rotating shaft allows the first and second clamp heads to rotate flexibly, realizing the opening and closing of the sampling forceps. The sliding jaw, threaded rod, and slider cooperate to drive the slider to move along the sliding jaw. The fixed shaft connects the first and second connecting rods. When the slider moves, it drives the clamp heads to open and close through the connecting rods, replacing the traditional manual force application, reducing the operational intensity. The drive mechanism provides power for the rotation of the threaded rod, realizing the automated control of the clamp head opening and closing, ensuring uniform gripping force, avoiding damage to the living tissue due to uneven manual force application, and improving the sampling success rate and safety. The drive shaft and retainer work together to maintain stable rotation of the drive shaft. A bevel gear converts the rotation of the drive shaft into the rotation of the threaded rod, changing the direction of power transmission. This allows the motor to be mounted on the top of the clamp handle, optimizing the equipment layout and preventing the drive components from occupying the clamp head operating space. Simultaneously, the bevel gear transmission ensures smooth operation and uniform threaded rod rotation, resulting in smooth slider movement, precise clamp head opening and closing, and improved sampling stability. The motor at the top of the clamp handle drives the drive shaft, providing automated power for opening and closing the sampling clamps. This eliminates the need for manual clamping, making it particularly suitable for long-term or fine-grained sampling scenarios, reducing hand fatigue. The motor speed is controllable and can be adjusted according to tissue hardness. Adjusting the opening and closing speed and force of the forceps heads avoids excessive compression and damage to the living tissue, improving sampling quality. The maximum opening angle of the first and second forceps heads is 120°. Compared to sampling forceps with smaller opening angles, this allows for sampling of larger volumes or more dispersed tissues, expanding the sampling coverage. Simultaneously, the 120° angle prevents the forceps heads from opening excessively, thus avoiding structural instability and ensuring the forceps heads' wrapping around the tissue during gripping, preventing tissue slippage during sampling. Sliding rods connected to both sides of the slider guide and limit its movement, preventing the slider from shifting or jamming during threaded rod rotation, ensuring the slider always moves linearly along the sliding edge, thereby ensuring the first... The connecting rod and the second connecting rod drive the clamp head to open and close smoothly, avoiding clamp head deviation that could lead to sampling position errors and improving operational accuracy. The grip at the other end of the clamp handle optimizes the grip feel, increases the contact area between the hand and the clamp handle, and improves grip stability. Especially when the angle needs to be adjusted during sampling, the grip provides a more comfortable point of force application, preventing hand slippage and ensuring that the operator can accurately control the position of the sampling clamp. This further enhances the safety and convenience of sampling operations. This utility model can effectively realize the automated control of clamp head opening and closing, ensuring uniform grasping force and avoiding damage to living tissue due to uneven manual force application, thereby improving the sampling success rate and safety, and has high practical value. Attached Figure Description

[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams disclosed in the embodiments of this utility model;

[0020] Figure 2This is the second three-dimensional structural schematic diagram disclosed in the embodiment of this utility model;

[0021] Figure 3 This is the third perspective structural diagram of the present utility model embodiment;

[0022] Figure 4 This is a cross-sectional view of the pliers handle disclosed in an embodiment of the present utility model;

[0023] Figure 5 The embodiments disclosed herein Figure 3 A magnified schematic diagram of structure A in the middle.

[0024] Figure 6 This is a three-dimensional structural diagram of the first and second pliers heads in an embodiment of the present utility model;

[0025] In the diagram: 1. Pliers handle; 101. Sliding edge; 102. Cavity; 2. First rotating shaft; 3. First pliers head; 4. Second pliers head; 5. Threaded rod; 6. Slider; 7. Sliding rod; 8. Fixed shaft; 9. First connecting rod; 10. Second connecting rod; 11. Drive mechanism; 1101. Transmission shaft; 1102. Retaining seat; 1103. Bevel gear; 1104. Motor; 12. Grip; 31. Groove; 41. Cutting edge. Detailed Implementation

[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0029] Please see Figures 1-6This utility model provides a technical solution: an easy-to-grip live tissue sampling forceps, including a handle 1, a first rotating shaft 2 fixedly installed on the inner side of one end of the handle 1, a first clamp head 3 and a second clamp head 4 rotatably connected to the outer side of the first rotating shaft 2 (in a preferred embodiment, a first limiting member is fixedly provided on the top of the first rotating shaft 2 to restrict the first clamp head 3 and the second clamp head 4 from disengaging), a sliding opening 101 is opened at the top of the handle 1, and threaded rods 5 are rotatably connected to both ends of the sliding opening 101. A slider 6 is fitted on the outer side of the threaded rod 5, and the slider 6 is threadedly connected to the threaded rod 5. A fixed shaft 8 is installed at the top of the slider 6, and a first connecting rod 9 is rotatably connected to the outer side of the fixed shaft 8. One end of the first connecting rod 9 is rotatably connected to one end of the first clamp head 3, and a second connecting rod 10 is rotatably connected to the outer side of the fixed shaft 8. One end of the second connecting rod 10 and one end of the second clamp head 4 are rotatably connected to... (In a preferred embodiment, a second limiting member is fixedly provided on the top of the fixed shaft 8 to restrict the disengagement of the first connecting rod 9 and the second connecting rod 10). The handle 1 has a cavity 102 inside, and a drive mechanism 11 for rotating the threaded rod 5 is provided inside the cavity 102. The handle 1 provides a basis for gripping and operation. The first rotating shaft 2 allows the first clamp head 3 and the second clamp head 4 to rotate flexibly, realizing the opening and closing of the sampling clamp. The sliding mouth 101, the threaded rod 5 and the slider 6 cooperate to drive the slider to move along the sliding mouth. The fixed shaft 8 connects the first connecting rod 9 and the second connecting rod 10. When the slider moves, it drives the clamp head to open and close through the connecting rod, replacing the traditional manual force application, reducing the operation intensity. The drive mechanism 11 provides power for the rotation of the threaded rod to realize the automated control of the opening and closing of the clamp head, ensuring uniform gripping force, avoiding damage to living tissue due to uneven manual force application, and improving the sampling success rate and safety.

[0030] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-6The drive mechanism 11 includes a drive shaft 1101, with a retaining seat 1102 rotatably connected to the bottom end of the drive shaft 1101. The bottom end of the retaining seat 1102 is fixedly connected to the bottom wall of the cavity 102. One end of the threaded rod 5 penetrates the side wall of the cavity 102. Both the threaded rod 5 and the outer side of the drive shaft 1101 are fitted with bevel gears 1103. The bevel gears 1103 of the threaded rod 5 mesh with the bevel gears 1103 of the drive shaft 1101. The threaded rod 5 and the drive shaft 1101 are connected by transmission through the bevel gears 1103. A motor 1104 is mounted on the top end of the clamp handle 1. The output end of the motor 1104 is fixedly connected to the top end of the drive shaft 1101. Through the cooperation between the drive shaft 1101 and the retaining seat 1102 in the drive mechanism 11, the drive shaft is kept to rotate stably. The bevel gears 1103 transmit power to the drive shaft. The rotation of the moving shaft is converted into the rotation of the threaded rod 5, changing the direction of power transmission. This allows the motor 1104 to be mounted on the top of the clamp handle, optimizing the equipment layout and preventing the drive components from occupying the clamp head operating space. At the same time, the bevel gear transmission is smooth, ensuring the threaded rod rotates at a uniform speed, which in turn makes the slider 6 move smoothly, the clamp head opens and closes accurately, and improves the stability of the sampling operation. The motor 1104 at the top of the clamp handle 1 drives the transmission shaft 1101 to rotate, providing automated power for the opening and closing of the sampling clamps. There is no need for the operator to manually squeeze the clamp handles, which is especially suitable for long-term sampling or fine sampling scenarios, reducing hand fatigue. The motor speed is controllable, and the opening and closing speed and force of the clamp head can be adjusted according to the tissue hardness to avoid excessive compression and damage to living tissue, thus improving the sampling quality. It should be noted that the motor 1104 is electrically connected to the controller.

[0032] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-6The first clamp head 3 and the second clamp head 4 can rotate to a maximum angle of 120°. Sliding rods 7 are slidably connected to both sides of the slider 6. One side of the sliding rod 7 is fixedly connected to the side wall of the sliding opening 101. A handle 12 is installed at the other end of the clamp handle 1. The maximum angle of rotation of the first clamp head 3 and the second clamp head 4 is 120°. Compared to sampling forceps with smaller opening angles, this can adapt to the need for sampling larger volumes or more dispersed tissues, expanding the sampling coverage. At the same time, the 120° angle avoids excessive opening of the clamp heads, preventing structural instability and ensuring the clamp heads' wrapping around the tissue during grasping, preventing tissue slippage during sampling. The sliding rods slidably connected to both sides of the slider 6... 7. It guides and limits the movement of the slider, preventing the slider from shifting or jamming when the threaded rod 5 rotates, ensuring that the slider always moves in a straight line along the sliding mouth 101, thereby enabling the first connecting rod 9 and the second connecting rod 10 to drive the clamp head to open and close smoothly, avoiding clamp head offset and sampling position deviation, and improving operation accuracy. The grip 12 at the other end of the clamp handle 1 optimizes the grip feel, increases the contact area between the hand and the clamp handle, and improves grip stability. Especially when the angle needs to be adjusted during sampling, the grip can provide a more comfortable force application point, avoid hand slippage, and ensure that the operator can accurately control the position of the sampling clamp, further improving the safety and convenience of sampling operation.

[0034] In a preferred embodiment, the first pliers head 3 has a concave groove 31 on its biting side, and the second pliers head 4 has a corresponding cutting edge 41 on its biting side. The groove 31 and the cutting edge 41 are adapted to each other and the cutting edge 41 can be seamlessly embedded in the groove 31.

[0035] Specifically, the working principle of this easy-grip tissue sampling forceps is as follows: During use, the handle 1 provides the basis for gripping and operation. The first rotating shaft 2 allows the first and second clamp heads 3 and 4 to rotate flexibly, enabling the opening and closing of the sampling forceps. The sliding jaw 101, threaded rod 5, and slider 6 cooperate to drive the slider to move along the sliding jaw. The fixed shaft 8 connects the first connecting rod 9 and the second connecting rod 10. When the slider moves, it drives the clamp heads to open and close via the connecting rod, replacing traditional manual force application and reducing operational intensity. The drive mechanism 11 provides power for the rotation of the threaded rod, achieving automated control of the clamp head opening and closing, ensuring uniform gripping force, avoiding damage to the tissue due to uneven manual force application, and improving sampling success rate and safety. This is achieved through the transmission in the drive mechanism 11. Shaft 1101 engages with retainer 1102 to maintain stable rotation of the drive shaft. Bevel gear 1103 converts the rotation of the drive shaft into rotation of the threaded rod 5, changing the direction of power transmission. This allows motor 1104 to be mounted on the top of the clamp handle, optimizing the equipment layout and preventing the drive components from occupying the clamp head's operating space. Simultaneously, the bevel gear transmission ensures smooth operation and uniform threaded rod rotation speed, resulting in smooth movement of slider 6, precise clamp head opening and closing, and improved stability of the sampling operation. The motor 1104 at the top of the clamp handle 1 drives the drive shaft 1101 to rotate, providing automated power for the opening and closing of the sampling clamps. This eliminates the need for manual clamping, making it particularly suitable for long-term or fine-grained sampling scenarios, reducing hand fatigue. The rotation speed is controllable, allowing adjustment of the opening and closing speed and force of the forceps heads according to tissue hardness, avoiding excessive compression and damage to living tissue, and improving sampling quality. The maximum opening angle of the first forceps head 3 and the second forceps head 4 is 120°. Compared with sampling forceps with a smaller opening angle, it can adapt to the sampling needs of larger volumes or more dispersed living tissues, expanding the sampling coverage. At the same time, the 120° angle can prevent the forceps heads from opening too wide, which would cause structural instability, ensuring the gripping effect of the forceps heads on the tissue and preventing tissue slippage during sampling. The sliding rods 7 connected to both sides of the slider 6 guide and limit the movement of the slider, preventing the slider from shifting or getting stuck when the threaded rod 5 rotates, and ensuring that the slider always moves in a straight line along the sliding opening 101. The movement of the first link 9 and the second link 10 causes the clamp head to open and close smoothly, preventing clamp head deviation and sampling position deviation, thus improving operational accuracy. The grip 12 at the other end of the clamp handle 1 optimizes the grip feel, increases the contact area between the hand and the clamp handle, and improves grip stability. Especially when the angle needs to be adjusted during sampling, the grip provides a more comfortable point of force application, preventing hand slippage and ensuring that the operator can accurately control the position of the sampling clamp, further improving the safety and convenience of the sampling operation. This utility model can effectively realize the automated control of the clamp head opening and closing, ensure uniform grasping force, avoid damage to living tissue due to uneven manual force application, improve the sampling success rate and safety, and has high practical value.

Claims

1. An easy-grip live tissue sampling forceps, characterized in that, The clamp includes a handle (1), on the inner side of one end of the handle (1) a first rotating shaft (2) is fixedly installed, and a first clamp head (3) and a second clamp head (4) are rotatably connected to the outer side of the first rotating shaft (2). The top end of the handle (1) is provided with a sliding opening (101), and both ends of the sliding opening (101) are rotatably connected with threaded rods (5). A slider (6) is fitted on the outer side of the threaded rod (5), and the slider (6) is threadedly connected to the threaded rod (5). A fixed shaft is installed at the top end of the slider (6). (8) A first connecting rod (9) is rotatably connected to the outside of the fixed shaft (8). One end of the first connecting rod (9) is rotatably connected to one end of the first pliers (3). A second connecting rod (10) is rotatably connected to the outside of the fixed shaft (8). One end of the second connecting rod (10) is rotatably connected to one end of the second pliers (4). A cavity (102) is provided inside the pliers handle (1). A drive mechanism (11) for rotating the threaded rod (5) is provided inside the cavity (102).

2. The easy-grip live tissue sampling forceps according to claim 1, characterized in that, The drive mechanism (11) includes a drive shaft (1101), the bottom end of which is rotatably connected to a retaining seat (1102). The bottom end of the retaining seat (1102) is fixedly connected to the bottom wall of the cavity (102). One end of the threaded rod (5) passes through the side wall of the cavity (102). A bevel gear (1103) is fitted on one end of the threaded rod (5) and the outer side of the drive shaft (1101). The bevel gear (1103) of the threaded rod (5) meshes with the bevel gear (1103) of the drive shaft (1101). The threaded rod (5) and the drive shaft (1101) are connected by transmission through the bevel gear (1103).

3. The easy-grip live tissue sampling forceps according to claim 2, characterized in that, A motor (1104) is mounted on the top of the clamp handle (1), and the output end of the motor (1104) is fixedly connected to the top of the transmission shaft (1101).

4. The easy-grip live tissue sampling forceps according to claim 1, characterized in that, The maximum angle at which the first clamp head (3) and the second clamp head (4) can be rotated open is 120°.

5. The easy-grip live tissue sampling forceps according to claim 1, characterized in that, The slider (6) is slidably connected to both sides of the slider (7), and one side of the slider (7) is fixedly connected to the side wall of the slide (101).

6. The easy-grip live tissue sampling forceps according to claim 1, characterized in that, A handle (12) is attached to the other end of the pliers (1).

7. The easy-grip live tissue sampling forceps according to claim 1, characterized in that, The first pliers head (3) has a concave groove (31) on its biting side, and the second pliers head (4) has a corresponding cutting edge (41) on its biting side. The groove (31) and the cutting edge (41) are adapted to each other and the cutting edge (41) can be seamlessly embedded in the groove (31).

Images