Endoscopy forceps

Abstract

The utility model relates to endoscope grab pincers technical field discloses digestive endoscope grab pincers, including main staff, the rear end of main staff is fixed with handle, the front end of main staff is provided with the clamping mechanism for clamping target tissue, the rear end of main staff is provided with the drive mechanism for driving clamping mechanism opening and closing respectively. The utility model through single -handed holding handle, the thumb can press down lock head, make lock head and locking strip separate and unlock, then index finger dials or releases trigger, drives the free opening and closing of the chuck of clamping mechanism, releases lock head after clamping target tissue, makes lock head and locking strip lock and makes trigger and chuck be locked, makes the chuck maintain the state of clamping target tissue, need not long -term dial trigger, increase the stability of the organization clamping, simultaneously whole clamping locking process only needs single -handed operation, and the operation mode is similar with traditional grab pincers, reduces the learning curve, increases operation efficiency and more satisfies clinical demand.

Description

Technical Field

[0001] This utility model relates to the field of endoscopic grasping forceps technology, and in particular to digestive endoscopy grasping forceps. Background Technology

[0002] Endoscopic grasping forceps are precision medical instruments used in digestive endoscopy examinations or treatments. Typically made of metal, they have a pair of movable grasping claws or clamps for holding and securing target tissues or objects. This tool plays a crucial role in endoscopy, assisting doctors in performing various procedures such as tissue sampling, lesion resection, or foreign body removal.

[0003] An existing digestive endoscopy grasping forceps (publication number: CN222516936U) has at least the following drawbacks: While the device features a locking mechanism that locks the forceps after grasping the target tissue, eliminating the need for constant gripping and ensuring tissue stability, the one-way locking mechanism in actual use means the forceps can only close freely and cannot open freely. Additional unlocking is required to open them. This necessitates additional unlocking when adjusting the forceps opening to avoid tissue entrapment, requiring both hands to operate simultaneously. One hand holds the forceps body while the other operates the locking mechanism. This differs from traditional one-handed forceps. In practice, the medical staff's other hand may be used for other tasks, such as adjusting the endoscope or handling tissue. The need for two-handed operation may reduce efficiency, increase the learning curve, and even lead to misoperation. Therefore, this invention is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a digestive endoscopy gripper.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The digestive endoscope grasping forceps includes a main rod with a handle fixed to its rear end. A clamping mechanism for grasping target tissue is provided at the front end of the main rod. A drive mechanism for opening and closing the clamping mechanism is provided at the rear end of the main rod. A locking component for locking the drive mechanism is provided inside the handle. The locking component includes a locking bar located behind the drive mechanism. A first slot is formed on the bottom surface of the locking bar along a linear array. A sliding groove is provided inside the handle, communicating with the main rod. A locking head is slidably disposed inside the sliding groove. A second slot is formed on the top surface of the locking head along a linear array. The first and second slots are compatible and can be engaged.

[0006] As a further embodiment of this utility model, the outer wall of the handle is connected to the sliding groove and an extension groove is provided. A reset rod is slidably inserted into the inner bottom surface of the extension groove. A first spring is movably sleeved on the outer wall of the reset rod. The top and bottom ends of the first spring abut against the bottom surface of the lock head and the inner bottom surface of the extension groove, respectively.

[0007] As a further embodiment of this utility model, the clamping mechanism includes a connection port opened at the front end of the main rod, with a clamp rotatably connected to both the top and bottom surfaces inside the connection port, and the two clamps rotatably connected to each other. A linkage rod is rotatably connected to the rear end of the clamps. A limit cylinder is fixed inside the main rod near the front end, and a drive rod is inserted inside the limit cylinder. The rear ends of the two linkage rods are rotatably connected to the front end of the drive rod.

[0008] As a further embodiment of this utility model, the driving mechanism includes a trigger that is slidably disposed on the outer wall of the main rod near the rear end. A steel wire rope is fixed between the front end of the trigger and the rear end of the driving rod. A locking bar is fixed to the rear end of the trigger. A second spring is movably sleeved on the outer wall of the driving rod. The two ends of the second spring are respectively abutted and fixed between the front end of the limiting cylinder and the driving rod.

[0009] As a further embodiment of this utility model, threaded holes are provided on both the left and right sides of the lock head, and a lever is threadedly connected inside the threaded holes.

[0010] As a further embodiment of this utility model, a limiting ring is fixed on the outer wall of the drive rod near the front end, and a limiting groove is opened on the inner bottom surface of the connection port, with the limiting ring and the limiting groove slidingly arranged inside each other.

[0011] Compared with the prior art, the present invention has the following beneficial effects: By designing a handle and a locking mechanism, when medical staff use the forceps, they only need to hold the handle with one hand and use their thumb to press down on the locking head, causing the locking head to disengage from the locking bar and unlock. Then, the index finger pulls or releases the trigger, driving the gripper of the clamping mechanism to open and close freely. At this time, the gripper is not locked in any way, and no additional unlocking operation is required, ensuring the freedom of opening and closing when gripping the target tissue. This also reduces the operation time and complexity. After gripping the target tissue, the thumb releases the locking head, causing the locking head to lock with the locking bar and locking the trigger and gripper. This keeps the gripper clamping the target tissue, eliminating the need to hold the trigger for a long time, increasing the stability of tissue gripping. At the same time, the entire gripping and locking process can be operated with only one hand, similar to the operation of traditional forceps, reducing the learning curve, increasing operational efficiency, and better meeting clinical needs. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the digestive endoscope grasping forceps proposed in this utility model; Figure 2This is a three-dimensional cross-sectional view of the main rod and handle of the digestive endoscope grasping forceps proposed in this utility model. Figure 3 for Figure 2 A magnified schematic diagram of the partial three-dimensional structure of A in the middle; Figure 4 for Figure 2 A magnified schematic diagram of the partial three-dimensional structure of B.

[0013] In the diagram: 1. Main rod; 101. Handle; 2. Locking bar; 201. First slot; 202. Slide groove; 203. Lock head; 204. Second slot; 205. Extension groove; 206. Reset rod; 207. First spring; 3. Connecting port; 301. Clamp; 302. Linkage rod; 303. Limiting cylinder; 304. Drive rod; 4. Trigger; 401. Steel wire rope; 402. Second spring; 5. Lever; 6. Limiting ring; 601. Limiting groove. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] Reference Figures 1-4The digestive endoscope grasping forceps includes a main rod 1, with a handle 101 fixed to the rear end of the main rod 1. The front end of the main rod 1 is provided with a clamping mechanism for clamping target tissue. The rear end of the main rod 1 is provided with a drive mechanism for opening and closing the clamping mechanism. The handle 101 is provided with a locking component for locking the drive mechanism. The locking component includes a locking bar 2 located on the rear side of the drive mechanism. The bottom surface of the locking bar 2 is provided with a first slot 201 arranged in a straight line. The handle 101 is connected to the main rod 1 and has a sliding groove 202. A lock head 203 is slidably arranged inside the sliding groove 202. The top surface of the lock head 203 is provided with a second slot 204 arranged in a straight line. The first slot 201 and the second slot 204 can be fitted and engaged.

[0018] Reference Figures 2-4 In this embodiment, the outer wall of the handle 101 is connected to the sliding groove 202 and has an extension groove 205. A reset rod 206 is slidably inserted into the inner bottom surface of the extension groove 205. A first spring 207 is movably sleeved on the outer wall of the reset rod 206. The top and bottom ends of the first spring 207 abut against the bottom surface of the lock head 203 and the inner bottom surface of the extension groove 205, respectively. By holding the handle 101 with one hand, the thumb, ring finger, and middle finger are used in conjunction with the thenar eminence to stably hold the handle 101. The thenar eminence refers to the area at the base of the thumb. Then, the thumb presses down on the lock head 203, causing the lock head 203 to slide down inside the sliding groove 202 and move away from the locking bar 2. At the same time, the reset rod 206 slides inside the extension groove 205 to compress the first spring 207, causing the cooperating first slot 201 and second slot 204 to disengage, thereby activating the drive mechanism. Unlock the mechanism, then use your index finger to move or release the drive mechanism. This allows the drive mechanism to freely open and close the clamping mechanism and clamp the target tissue. At this time, the clamping mechanism is not locked and no additional unlocking operation is required, ensuring the freedom of opening and closing when clamping the target tissue. This also reduces the operation time and complexity. Then, release the lever 5 with your thumb. At this time, the first spring 207 drives the lock head 203 to reset and abut against the locking bar 2, causing the first slot 201 and the second slot 204 to re-engage and lock, thereby locking the drive mechanism. This keeps the clamping mechanism in a clamped state on the target tissue, eliminating the need to hold the drive mechanism in place for a long time. This increases the stability of tissue clamping. The entire clamping and locking process can be operated with one hand, similar to traditional grippers, reducing the learning curve, increasing operational efficiency, and better meeting clinical needs.

[0019] Reference Figures 2-4In this embodiment, the clamping mechanism includes a connection port 3 at the front end of the main rod 1. A clamp 301 is rotatably connected to both the top and bottom surfaces of the connection port 3. The two clamps 301 are rotatably connected, and a linkage rod 302 is rotatably connected to the rear end of each clamp 301. A limiting cylinder 303 is fixed inside the main rod 1 near the front end. A drive rod 304 is inserted inside the limiting cylinder 303. The rear ends of the two linkage rods 302 are rotatably connected to the front ends of the drive rod 304. When the drive rod 304 slides back and forth, it pushes or pulls the linkage rod 302. At this time, both ends of the linkage rod 302 rotate between the drive rod 304 and the clamps 301, and simultaneously pull or push the clamps 301. Since the clamps 301 also rotate inside the connection port 3, the two clamps 301 are driven by the linkage rod 302 to rotate, thus enabling the two clamps 301 to complete the opening and closing action, thereby achieving the clamping and fixing of the target tissue.

[0020] Reference Figures 2-4 In this embodiment, the driving mechanism includes a trigger 4 slidably disposed on the outer wall of the main rod 1 near the rear end. A steel wire rope 401 is fixed between the front end of the trigger 4 and the rear end of the driving rod 304. A locking bar 2 is fixed to the rear end of the trigger 4. A second spring 402 is movably sleeved on the outer wall of the driving rod 304. The two ends of the second spring 402 are respectively abutted and fixed between the front end of the limiting cylinder 303 and the driving rod 304. By flicking or releasing the trigger 4 with an index finger, the trigger 4 pulls or releases the steel wire rope 401. When the trigger 4 is flicked and the steel wire rope 401 is pulled backward, the steel wire rope 401 pulls the driving rod 304 to slide backward and compresses the second spring 402. When the trigger 4 is released, the steel wire rope 401 is released, and the second spring 402 rebounds and drives the driving rod 304 to slide forward and reset, thereby realizing the forward and backward sliding of the driving rod 304, thereby driving the clamping mechanism to clamp and fix the target tissue.

[0021] Reference Figures 2-4 In this embodiment, threaded holes are provided on both the left and right sides of the lock head 203, and a lever 5 is threadedly connected inside the threaded holes. By providing threaded holes on both the left and right sides of the lock head 203, the lever 5 can be disassembled or installed on the left and right sides of the lock head 203 respectively, which is convenient for adjustment according to the dominant hand of medical staff and increases the applicability of the device.

[0022] Reference Figures 2-4 In this embodiment, a limiting ring 6 is fixed on the outer wall of the drive rod 304 near the front end, and a limiting groove 601 is opened on the inner bottom surface of the connection port 3. The limiting ring 6 and the limiting groove 601 are internally slidably arranged. By setting the limiting ring 6 and the limiting groove 601 to slide internally, the forward and backward sliding of the drive rod 304 can be limited, ensuring the normal opening and closing of the chuck 301.

[0023] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In use, when it is necessary to use the gripping forceps to grasp the target tissue, the lever 5 is installed on the left or right side of the lock head 203 according to the medical staff's dominant hand. Then, the medical staff holds the handle 101 with one hand, using the thumb, ring finger, and middle finger in conjunction with the thenar eminence to stably hold the handle 101. The thenar eminence refers to the area at the base of the thumb. Then, the thumb presses down on the lock head 203, causing the lock head 203 to slide down inside the slide groove 202 and move away from the locking bar 2, while the reset lever 206 is in the extension groove 205. The sliding mechanism compresses the first spring 207, causing the cooperating first slot 201 to disengage from the second slot 204. Then, the index finger pulls or releases the trigger 4, causing the trigger 4 to pull or release the wire rope 401. When the trigger 4 is pulled, causing the wire rope 401 to move backward, the wire rope 401 pulls the drive rod 304 backward, compressing the second spring 402. When the trigger 4 is released, the wire rope 401 is released, and the second spring 402 rebounds, causing the drive rod 304 to slide forward and reset, thus realizing the forward and backward sliding of the drive rod 304. Since the two ends of the linkage rod 302 are respectively connected to the front of the drive rod 304... The end and the clamp 301 are rotatably connected. When the drive rod 304 slides backward or forward, it pushes or pulls the linkage rod 302. At this time, both ends of the linkage rod 302 rotate between the drive rod 304 and the clamp 301, and at the same time, it pulls or pushes the clamp 301 backward. Since the clamp 301 also rotates inside the connection port 3, the two clamps 301 are driven by the linkage rod 302 to rotate on their own. The two clamps 301 can then complete the opening and closing action, thereby achieving the clamping and fixing of the target tissue. During this process, the clamps 301 are not locked in any way, and no additional unlocking operation is required, ensuring the clamping of the target tissue. The opening and closing freedom reduces the operation time and complexity. After clamping and fixing the target tissue, the thumb releases the lever 5. At this time, the first spring 207 drives the locking head 203 to reset and abut against the locking bar 2, and makes the first slot 201 and the second slot 204 re-engage and lock, so that the trigger 4 and the clamp 301 are locked at the same time, so that the clamp 301 maintains the state of clamping the target tissue. It is not necessary to keep the trigger 4 for a long time, which increases the stability of tissue clamping. At the same time, the entire clamping and locking process can be operated with one hand, and the operation method is similar to that of traditional grippers, reducing the learning curve, increasing operation efficiency, and better meeting clinical needs.

[0024] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A digestive endoscope grasping forceps, comprising a main shaft (1), characterized in that, The main rod (1) has a handle (101) fixed at its rear end. The main rod (1) has a clamping mechanism for clamping the target tissue at its front end. The main rod (1) has a drive mechanism for opening and closing the clamping mechanism at its rear end. The handle (101) has a locking component for locking the drive mechanism inside. The locking component includes a locking bar (2) on the rear side of the drive mechanism. The bottom surface of the locking bar (2) has a first slot (201) arranged in a straight line array. The handle (101) has a sliding groove (202) connected to the main rod (1) inside. A lock head (203) is slidably arranged inside the sliding groove (202). The top surface of the lock head (203) has a second slot (204) arranged in a straight line array. The first slot (201) and the second slot (204) can be fitted and engaged.

2. The digestive endoscope grasping forceps according to claim 1, characterized in that, The outer wall of the handle (101) is connected to the sliding groove (202) and an extension groove (205) is provided. A reset rod (206) is slidably inserted into the inner bottom surface of the extension groove (205). A first spring (207) is movably sleeved on the outer wall of the reset rod (206). The top and bottom ends of the first spring (207) abut against the bottom surface of the lock head (203) and the inner bottom surface of the extension groove (205), respectively.

3. The digestive endoscope grasping forceps according to claim 2, characterized in that, The clamping mechanism includes a connection port (3) at the front end of the main rod (1). The top and bottom surfaces of the connection port (3) are rotatably connected to a chuck (301). The two chucks (301) are rotatably connected to each other. The rear end of the chuck (301) is rotatably connected to a linkage rod (302). A limit cylinder (303) is fixed inside the main rod (1) near the front end. A drive rod (304) is inserted inside the limit cylinder (303). The rear ends of the two linkage rods (302) are rotatably connected to the front end of the drive rod (304).

4. The digestive endoscope grasping forceps according to claim 3, characterized in that, The driving mechanism includes a trigger (4) that is slidably disposed on the outer wall of the main rod (1) near the rear end. A steel wire rope (401) is fixed between the front end of the trigger (4) and the rear end of the driving rod (304). A locking bar (2) is fixed to the rear end of the trigger (4). A second spring (402) is movably sleeved on the outer wall of the driving rod (304). The two ends of the second spring (402) are respectively abutted and fixed between the front end of the limiting cylinder (303) and the driving rod (304).

5. The digestive endoscope grasping forceps according to claim 4, characterized in that, The lock head (203) has threaded holes on both the left and right sides, and the threaded holes are connected to a lever (5).

6. The digestive endoscope grasping forceps according to claim 5, characterized in that, A limiting ring (6) is fixed near the front end of the outer wall of the drive rod (304), and a limiting groove (601) is opened on the inner bottom surface of the connection port (3). The limiting ring (6) and the limiting groove (601) are slidably arranged inside each other.

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