A general surgery clinical sampling device

Abstract

This invention relates to the field of medical devices, specifically to a general surgical clinical sampling device, comprising a handle and a drive mechanism. A cannula is fixedly connected to the handle, and the end of the cannula away from the handle is equipped with a cutting mechanism for cutting the sample, an aspiration mechanism for suctioning the sample, and a clamping mechanism for holding the sample. The drive mechanism drives the cutting mechanism, aspiration mechanism, and clamping mechanism to operate in coordination. When the drive mechanism controls the cutting mechanism to open, the aspiration mechanism is simultaneously activated to suction the target sample into the cannula; when the drive mechanism controls the cutting mechanism to close to cut the sample, the clamping mechanism is simultaneously activated to fix the cut sample. This invention simplifies the cumbersome process of traditional sampling, which requires multiple instrument changes or step-by-step operations, and improves the accuracy and reliability of pathological testing.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to a general surgical clinical sampling device. Background Technology

[0002] In general surgery clinical diagnosis and treatment, tissue biopsy is a core step in clarifying the nature, grade, and stage of lesions, guiding treatment planning, and assessing prognosis. The quality of the sample determines the accuracy of the pathological diagnosis, thus affecting the scientific nature of subsequent treatment decisions. Currently, commonly used sampling methods in clinical practice mainly include traditional surgical incision biopsy, percutaneous needle biopsy, and endoscopic clamp biopsy. Although these methods each have their applicable scenarios, in actual clinical application, there may be some unavoidable technical shortcomings that cannot fully meet the diagnostic and treatment needs in the context of precision medicine.

[0003] Traditional surgical biopsy requires open surgery to expose the lesion area before tissue removal. While this method can obtain larger samples, it has several drawbacks: cumbersome procedures, significant surgical trauma, high intraoperative bleeding, long recovery time, and a high risk of incision infection. Percutaneous needle biopsy, due to its minimally invasive nature, is widely used for sampling deep organ lesions; however, the lack of fixation and cutting mechanisms often leads to insufficient sample volume, fragmentation, or contamination with surrounding normal tissue, affecting the accuracy of pathological diagnosis. Endoscopic forceps biopsy, a common sampling method for lesions in the digestive and respiratory tracts, eliminates the need for open surgery, but the structural limitations of ordinary biopsy forceps are also significant. For example, some ordinary biopsy forceps only have clamping or cutting functions, making it difficult to effectively locate and obtain small, soft, or deep lesions.

[0004] Furthermore, some existing sampling instruments may have functional deficiencies, requiring the use of multiple instruments in tandem or frequent instrument changes to complete the sampling process. For example, in clinical practice, it is often necessary to first locate the lesion using endoscopy or ultrasound equipment, and then change to biopsy forceps or puncture needles for sampling. During sampling, the tissue must be separated before the procedure, making the process cumbersome and lacking in smooth coordination. This multi-instrument collaborative operation mode not only prolongs the operation time and increases the difficulty and labor intensity for medical staff, but may also expand the area of ​​tissue damage due to repeated insertion and removal of instruments or frequent switching within the operating space, easily leading to complications such as intraoperative bleeding, intra-abdominal infection, and accidental organ injury.

[0005] Therefore, this invention proposes a general surgical clinical sampling device that integrates functions such as cutting, aspiration and clamping into the same tube front end and achieves coordinated operation by a single drive mechanism. This simplifies the cumbersome process of traditional sampling, which requires multiple instrument changes or step-by-step operations, and improves the accuracy and reliability of pathological testing. Summary of the Invention

[0006] To address the aforementioned issues, this invention provides a general surgical clinical sampling device that integrates functions such as cutting, aspiration, and clamping into the same tube front end, and achieves coordinated operation through a single drive mechanism. This simplifies the cumbersome process of traditional sampling, which requires multiple instrument changes or step-by-step operations, and improves the accuracy and reliability of pathological testing.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: a general surgical clinical sampling device, including a handle, a sleeve fixedly connected to the handle, and a cutting mechanism for cutting the sample, an aspiration mechanism for aspirating the sample, and a clamping mechanism for holding the sample at the end of the sleeve away from the handle.

[0008] It also includes a drive mechanism, which drives the cutting mechanism, suction mechanism and clamping mechanism to work together; when the drive mechanism controls the cutting mechanism to open, the suction mechanism is started simultaneously to suck the target sample into the sleeve; when the drive mechanism controls the cutting mechanism to close to cut the sample, the clamping mechanism is driven simultaneously to fix the cut sample.

[0009] The technical principles of the above solution are as follows:

[0010] The acquisition of tissue samples is achieved by synchronously coordinating the actions of the cutting, suction, and clamping mechanisms through a drive mechanism. The cutting mechanism opens to create a receiving space, while the suction mechanism simultaneously generates negative pressure to draw the target tissue into the cannula and position it. Once the sample is in place, the drive mechanism controls the cutting mechanism to close and cut the tissue sample, while the clamping mechanism simultaneously clamps the cut sample to prevent it from falling out or shifting. The entire process requires no instrument replacement, is simple to operate, improves sampling efficiency and safety, and reduces the risk of tissue damage and cross-contamination, making it suitable for sampling deep or small lesions.

[0011] The above approach has the following beneficial effects:

[0012] 1. This solution integrates cutting, aspiration, and clamping functions into a single tube tip, with a single drive mechanism enabling coordinated operation. This simplifies the cumbersome process of traditional sampling, which requires multiple instrument changes or step-by-step operations. In clinical practice, doctors only need one insertion to complete positioning, cutting, and sample fixation; this not only shortens the operation time but also reduces mechanical damage to surrounding tissues caused by repeated instrument insertion and removal. Simultaneously, the integrated design reduces sample detachment, confusion, or contamination during transfer, improving the accuracy and reliability of pathological testing.

[0013] 2. This solution employs a sequential operation mechanism of first suction and positioning, then cutting, and finally clamping. This ensures that the target tissue is stably sucked in and centered in the cutting area before being cut, thereby improving the accuracy and integrity of the sampling. The clamping action, triggered simultaneously after cutting, secures the tissue sample and prevents it from falling off due to gravity, airflow, or instrument movement. This coordinated action enhances the applicability of the device and provides technical support for sampling deep and hidden tissues.

[0014] 3. The linkage operation mechanism of this solution is automatically coordinated by the drive mechanism, reducing the cumbersome process of multi-component operation and lowering the uncertainty and technical dependence of human operation. Even in cavities with limited field of vision or confined spaces, it can stably perform sampling. The device achieves gentle and efficient sample collection through a combination of closed negative pressure suction and cutting; this not only benefits the patient's postoperative recovery but also reduces the probability of complications caused by improper operation.

[0015] Furthermore, the cutting mechanism includes several first cutting blades and several second cutting blades, with the first cutting blades all located on the side of the second cutting blades away from the sleeve; an internal gear ring is rotatably fitted at the end of the sleeve away from the handle, and several driven gears are circumferentially meshed on the internal gear ring; the first cutting blades and the second cutting blades are respectively fixedly connected to the driven gears at intervals; the driving mechanism is used to drive the internal gear ring to rotate.

[0016] Beneficial effects: Through the meshing transmission of the internal gear ring and multiple driven gears, the first and second cutters arranged at intervals are driven to move synchronously. Since the first cutter is located on the side of the second cutter away from the sleeve, the two sets of blades generate shearing force during the closing process to sample the tissue, thereby improving cutting efficiency and cross-sectional neatness.

[0017] Furthermore, the drive mechanism includes a controller and a drive component, with the controller and drive component electrically connected; the drive component is fixedly connected to the inner wall of the handle, and a drive shaft is coaxially fixedly connected to the output shaft of the drive component, with a drive gear coaxially fixedly connected to the end of the drive shaft away from the drive component; an arc-shaped gear ring is fixedly connected to the outer wall of the internal gear ring, and the drive gear meshes with the arc-shaped gear ring.

[0018] Beneficial effects: The drive component drives the drive gear to mesh with the arc-shaped gear ring via the drive shaft, thereby transmitting power to the internal gear ring and enabling subsequent components to work together; it reduces space occupation and facilitates layout in small spaces; at the same time, the electric drive method improves the controllability of operation, reduces uneven force or timing deviation caused by manual operation, and enhances the safety and automation level of the sampling process.

[0019] Furthermore, the clamping mechanism includes a limiting ring fixedly connected to the inner wall of the sleeve, and several clamping blocks are slidably connected to the limiting ring in the circumferential direction; a rotating disk is rotatably fitted on the side of the limiting ring away from the clamping blocks, and the rotating disk is fixedly connected to the internal gear ring; several arc-shaped grooves are opened in the circumferential direction of the rotating disk, and slide rods are slidably fitted in each arc-shaped groove, and each slide rod is fixedly connected to the clamping block.

[0020] Beneficial effects: By linking the rotating disk with the internal gear ring, and utilizing the cooperation of the arc groove and the slide bar, the rotational motion is converted into the radial synchronous movement of the clamping blocks, achieving uniform and stable clamping of the sample. The limiting ring provides guiding support for the clamping blocks, ensuring smooth sliding; multiple clamping blocks are distributed circumferentially, which can adapt to samples of different shapes and sizes, improving clamping reliability.

[0021] Furthermore, the suction mechanism includes a suction cylinder fixedly connected to the inner wall of the handle, a piston plate slidably fitted to the inner wall of the suction cylinder, and a transmission rod fixedly connected to the piston plate; a transmission tube is connected to the side of the suction cylinder away from the transmission rod, and the end of the transmission tube away from the suction cylinder is connected to the inside of the sleeve; a drive mechanism is used to drive the transmission rod to move.

[0022] Beneficial effects: The reciprocating sliding of the piston plate within the suction cylinder creates negative pressure, drawing the target tissue into the cannula via the transfer tube, achieving positioning before cutting. The transmission rod is uniformly driven by the drive mechanism, coordinating with the cutting and clamping actions to ensure suction is completed before cutting, reducing sample shift or omission and improving sampling integrity.

[0023] Furthermore, the drive mechanism also includes a lead screw coaxially fixedly connected to the drive shaft, with a nut seat threaded onto the lead screw, and the nut seat slidingly engaging with the inner wall of the handle; the transmission rod is fixedly connected to the outer wall of the nut seat.

[0024] Beneficial effects: By coaxially mounting a lead screw on the drive shaft and forming a helical transmission pair with the nut seat, the rotational motion is converted into the linear reciprocating motion of the transmission rod, thereby controlling the displacement of the piston plate within the suction cylinder and achieving stable negative pressure suction. This structure cleverly utilizes the same drive source to synchronously drive the cutting and suction functions, eliminating the need for additional power components and improving the integration and coordination of the device.

[0025] Furthermore, a camera is fixedly connected to the end of the sleeve away from the handle. The controller is used to acquire image information captured by the camera and control the operation of the drive components based on the image information.

[0026] Beneficial effects: Real-time image information of the lesion area is obtained by using a camera, and the sampling location and timing are determined accordingly, realizing visual sampling and reducing sample deviation or repeated punctures caused by blind operation; it enhances the ability to identify and capture small, deep or poorly defined lesions, thereby improving sampling accuracy and efficiency.

[0027] Furthermore, each clamping block is fixedly connected with a flexible layer.

[0028] Beneficial effects: The flexible layer provides cushioning and protection when holding samples, reducing tissue crushing, deformation, or damage caused by rigid contact, making it suitable for soft and fragile pathological tissues. Furthermore, the flexible layer increases friction between the sample and the tissue, improving holding stability.

[0029] Furthermore, the outer wall of the sleeve is coated with a hydrophilic coating to reduce friction.

[0030] Beneficial effects: The hydrophilic coating can form a lubricant when in contact with body fluids or tissues, reducing frictional resistance during insertion and movement, alleviating irritation and damage to surrounding tissues, and helping instruments to be smoothly advanced in narrow cavities or curved anatomical pathways, improving operational flexibility and patient comfort.

[0031] Furthermore, a sampling pump for extracting liquid is fixedly connected inside the handle, and the sampling pump is electrically connected to the controller; the input end of the sampling pump is connected to the side of the sleeve away from the handle, and the output end of the sampling pump is connected to a storage tank for storing liquid.

[0032] Beneficial effects: The integrated electronically controlled sampling pump in the handle can extract liquid samples (such as cystic fluid, exudate or irrigation fluid) from the lesion area and deliver them to the storage tank through a dedicated pipeline, thus meeting the needs for collecting solid and liquid samples; it simplifies the sampling process, improves operational efficiency, and is suitable for general surgical clinical scenarios with effusion, cystic lesions, or those requiring combined liquid biopsy. Attached Figure Description

[0033] Figure 1 This is an isometric view of the general surgery clinical sampling device of the present invention.

[0034] Figure 2 For the present invention Figure 1 The top sectional view in the image.

[0035] Figure 3 For the present invention Figure 2 Axonometric drawing of the cutting mechanism.

[0036] Figure 4 For the present invention Figure 2 Axonometric view of the rotating disk.

[0037] Figure 5 For the present invention Figure 2 Axonometric view of the clamping block.

[0038] The reference numerals in the accompanying drawings include: 1. Handle; 2. Sleeve; 3. First cutter; 4. Second cutter; 5. Internal gear ring; 6. Driven gear; 7. Driving component; 8. Drive shaft; 9. Drive gear; 10. Arc-shaped gear ring; 11. Limiting ring; 12. Clamping block; 13. Rotating disk; 14. Slide rod; 15. Suction cylinder; 16. Piston plate; 17. Transmission rod; 18. Lead screw; 19. Nut seat; 20. Flexible layer; 21. Sampling pump. Detailed Implementation

[0039] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] The following detailed description illustrates the specific implementation method:

[0043] Example 1:

[0044] As attached Figures 1-5 As shown: A general surgical clinical sampling device includes a handle 1, a sleeve 2 fixedly bonded to the handle 1, and a cutting mechanism for cutting the sample, an aspiration mechanism for drawing the sample, and a clamping mechanism for holding the sample at the end of the sleeve 2 away from the handle 1.

[0045] This embodiment also includes a driving mechanism, which drives the cutting mechanism, the suction mechanism and the clamping mechanism to work together. When the driving mechanism controls the cutting mechanism to be in an open state, the suction mechanism is simultaneously activated to suck the target sample into the sleeve 2. When the driving mechanism controls the cutting mechanism to be closed to cut the sample, the clamping mechanism is simultaneously driven to fix the cut sample.

[0046] In this embodiment, the sleeve 2 is a rigid structure. In some preferred embodiments, the sleeve 2 can also be a flexible structure. When it is a flexible structure, the output power of the drive mechanism is transmitted through several universal joint drive shafts. The flexible structure is made of nickel-titanium alloy superelastic tube or medical polymer material with a certain toughness, and its outer wall is coated with a hydrophilic lubricating coating (such as polyvinylpyrrolidone PVP) to further reduce the frictional resistance during propulsion.

[0047] Combination Figure 3 As shown, the cutting mechanism includes several first cutting blades 3 and several second cutting blades 4. The first cutting blades 3 are all located on the side of the second cutting blades 4 away from the sleeve 2. This design allows the first cutting blades 3 and the second cutting blades 4 to be staggered, thus enabling them to perform opening and closing actions. An internal gear ring 5 is rotatably fitted to the end of the sleeve 2 away from the handle 1. The internal gear ring 5 is circumferentially meshed with several driven gears 6. The first cutting blades 3 and the second cutting blades 4 are respectively fixedly connected to the driven gears 6 with screws at intervals. The driving mechanism is used to drive the internal gear ring 5 to rotate. In this embodiment, the driven gears 6 are all rotatably connected to the side wall of the sleeve 2.

[0048] The drive mechanism includes a controller and a drive component 7. In this embodiment, the controller is a main control MCU and the drive component 7 is a motor. The controller and the drive component 7 are electrically connected. The drive component 7 is fixedly connected to the inner wall of the handle 1 with screws. The output shaft of the drive component 7 is coaxially fixedly connected to the drive shaft 8 through a coupling. The end of the drive shaft 8 away from the drive component 7 is coaxially keyed to the drive gear 9. The outer wall of the inner gear ring 5 is integrally formed with an arc-shaped gear ring 10. The drive gear 9 and the arc-shaped gear ring 10 mesh with each other.

[0049] The clamping mechanism includes a limiting ring 11 fixedly bonded to the inner wall of the sleeve 2, and a plurality of clamping blocks 12 (such as...) are circumferentially slidably connected to the limiting ring 11. Figure 5 (As shown); a rotating disk 13 is rotatably fitted on the side of the limiting ring 11 away from the clamping block 12, and the rotating disk 13 is fixedly connected to the internal gear ring 5 with screws; the rotating disk 13 has several arc-shaped grooves on its circumference, and each arc-shaped groove is slidably fitted with a slide rod 14 (as shown). Figure 4 As shown), the slide rods 14 are all fixedly connected to the clamping block 12 with screws.

[0050] Combination Figure 2As shown, the suction mechanism includes a suction cylinder 15 bolted to the inner wall of the handle 1, a piston plate 16 slidably fitted on the inner wall of the suction cylinder 15, and a transmission rod 17 fixedly bonded to the piston plate 16; a transmission tube is connected to the side of the suction cylinder 15 away from the transmission rod 17, and the end of the transmission tube away from the suction cylinder 15 is connected to the inside of the sleeve 2; the drive mechanism is used to drive the transmission rod 17 to move.

[0051] The drive mechanism also includes a lead screw 18 coaxially fixed to the drive shaft 8 via a coupling. A nut seat 19 is threaded onto the lead screw 18, and the nut seat 19 slides against the inner wall of the handle 1. A transmission rod 17 is screwed and fixedly connected to the outer wall of the nut seat 19. In this embodiment, the sliding fit between the nut seat 19 and the inner wall of the handle 1, and the connection between the transmission rod 17 and the suction cylinder 15, provide a limit for the nut seat 19, so that when the lead screw 18 rotates, it can drive the nut seat 19 to maintain a linear motion trajectory.

[0052] The specific implementation process is as follows:

[0053] Before sampling, the doctor inserts the device through the puncture channel or endoscope working port to the vicinity of the target lesion. When sampling is required, the controller activates the drive unit 7 (motor), and the drive shaft 8 begins to rotate. The rotational motion is transmitted simultaneously through two paths. On one hand, the drive shaft 8 drives the lead screw 18 to rotate, and the rotation of the lead screw 18 causes the nut seat 19 to move linearly. The nut seat 19 then pulls the transmission rod 17 and the piston plate 16 backward within the suction cylinder 15. At this time, the suction mechanism is activated, generating negative pressure within the cannula 2, which aspirates and pulls the target tissue into the cannula 2, preparing it for cutting. In this embodiment, the suction action not only helps to pull small or soft lesion tissue to the working area, but also tightens the local tissue to a certain extent, making the cutting cleaner and more precise.

[0054] On the other hand, the drive gear 9 at the front end of the drive shaft 8 rotates synchronously, meshing and driving the arc-shaped gear ring 10 to rotate. The arc-shaped gear ring 10 then synchronously drives the inner gear ring 5 to rotate. When the inner gear ring 5 rotates, it drives all the driven gears 6 that mesh with it circumferentially to rotate. The first cutter 3 and the second cutter 4, fixed on the driven gears 6, swing accordingly, changing from an initial closed state to an open state, creating conditions for the inclusion of the aspirated tissue. In this embodiment, depending on the size of the tissue, the larger the opening range of the first cutter 3 and the second cutter 4, the greater the negative pressure generated inside the suction cylinder 15, and the greater its suction force.

[0055] Once the tissue has been fully aspirated to the preset position, when cutting is required, the controller activates the drive unit 7 to run in reverse, and the internal gear ring 5 rotates in reverse, driving all driven gears 6 to rotate in reverse. This causes the first cutter 3 and the second cutter 4 to change from an open state to a closed state, completing the cutting (trimming) of the target sample like scissors, resulting in a clean cut. The rotation of the internal gear ring 5 simultaneously drives the rotating disk 13 fixed to it to rotate. Due to the arc-shaped groove design of the rotating disk 13, when the rotating disk 13 rotates, the arc-shaped groove pushes the sliding rod 14 within it to move. When the sliding rod 14 slides, since the sliding rod 14 is fixedly connected to the clamping block 12, the sliding rod 14 will drive the clamping block 12 to slide radially towards the center along the sleeve 2 under the guidance of the limiting ring 11. During the cutting process, several clamping blocks 12 simultaneously close, clamping the cut tissue sample in the center to prevent it from falling off or being lost.

[0056] After sampling, when it is necessary to release the sample (e.g., placing it into a specimen bag or pathology bottle), the controller activates the drive unit 7 to reverse again. Therefore, the rotating disk 13 rotates in the opposite direction, and the arc-shaped groove drives the slide rod 14 to slide all the clamping blocks 12 radially outward, releasing the sample; the two internal gear rings 5 ​​reverse, driving the first cutter 3 and the second cutter 4 to rotate and open, opening a channel for sample discharge. The reverse rotation of the lead screw 18 drives the nut seat 19 to advance towards the sleeve 2, pushing the piston plate 16 forward and forcing the gas in the suction cylinder 15 outward; the airflow blows out from the sleeve 2 through the transmission tube, blowing the released sample away from the device, completing the rapid release.

[0057] This embodiment achieves automated operation of the process—opening, suction positioning, closing cutting, synchronous clamping, and reverse release—through a single drive mechanism that links multiple mechanisms in coordinated operation. When the motor rotates forward, the cutter opens and the tissue is suctioned into place under negative pressure. When rotating in reverse, the cutter closes and cuts, while the clamping block 12 automatically gathers and fixes the sample. To release the sample, simply reverse the motor again to simultaneously open the cutter, release the clamp, and blow out the sample, completing a rapid release. The entire process requires no replacement of other instruments, reducing manual intervention. The high coordination of the various mechanisms and precise timing of operations improve sampling efficiency, sample integrity, and operational safety, making it suitable for sampling deep, small, or fragile lesions in a minimally invasive environment.

[0058] In a preferred embodiment, when the cannula 2 is a flexible structure, directional adjustment is achieved using guidewire guidance. During operation, a standard medical guidewire is first inserted and anchored near the target area under the guidance of medical imaging (such as ultrasound or X-ray). Subsequently, the cannula 2 of this device is pushed and slid along the guidewire until its working end (the end integrating cutting, suction, and other mechanisms) reaches the predetermined position. A sealing valve or quick connector can be designed at the end of the guidewire channel to facilitate the insertion, fixation, and removal of the guidewire.

[0059] An X-ray-proof marking ring (such as platinum or barium sulfate marking) is embedded at the distal end or key bend of cannula 2 to facilitate real-time imaging under X-ray or CT scans, aiding in determining the instrument's position and orientation. This allows the entire sampling procedure to be performed under real-time imaging monitoring such as ultrasound, CT, or MRI, enabling doctors to manually adjust the depth and angle of cannula 2 based on image feedback.

[0060] The preferred embodiment improves surgical efficiency and reduces the risk of trauma and time delay caused by instrument exchanges. By providing flexible cannula options and being compatible with various guidance methods such as guidewires and imaging, the device can flexibly adapt to various general surgical clinical scenarios such as percutaneous biopsy, endoscopic biopsy, and precise sampling in open surgery.

[0061] Example 2:

[0062] The difference from Embodiment 1 is that a camera is fixedly connected to the end of the sleeve 2 away from the handle 1 with a screw. The controller is used to acquire the image information captured by the camera and control the operation of the drive component 7 based on the image information.

[0063] The specific implementation process is as follows:

[0064] During the procedure, the doctor places one end of the cannula close to the target tissue. A camera fixed to the distal end of the cannula captures high-definition images of the lesion area in real time and transmits the video signal to the controller (main MCU). The controller analyzes the image information, identifies the location, boundaries, and morphological features of the target tissue, and determines the timing and location for sampling accordingly.

[0065] Once the target area is confirmed, the drive unit 7 (motor) is activated by the controller to execute the sampling procedure. Throughout the process, the camera not only provides intraoperative visual guidance but also serves as a key sensing unit for control, ensuring that the sampling action is triggered after the tissue is in place, avoiding empty cutting or accidental cutting of healthy tissue, and improving the accuracy, safety, and intelligence of general surgical biopsy.

[0066] Example 3:

[0067] As attached Figure 5 As shown, the difference from Embodiment 2 is that a flexible layer 20 is fixedly bonded to each clamping block 12. In this embodiment, the flexible layer 20 is made of medical silicone.

[0068] The specific implementation process is as follows:

[0069] The flexible layer 20 provides cushioning and protection when holding samples, reducing tissue crushing, deformation, or damage caused by rigid contact, making it suitable for soft and fragile pathological tissues. Furthermore, the flexible layer 20 increases the friction between the sample and the tissue, improving holding stability.

[0070] Example 4:

[0071] The difference from Example 3 is that the outer wall of the sleeve 2 is coated with a hydrophilic coating to reduce friction. In this example, the hydrophilic coating is polyvinylpyrrolidone (PVP).

[0072] The specific implementation process is as follows:

[0073] The hydrophilic coating can form a lubricant when in contact with body fluids or tissues, reducing frictional resistance during insertion and movement, alleviating irritation and damage to surrounding tissues, and helping the instrument to be smoothly advanced in narrow cavities or curved anatomical pathways, improving operational flexibility and patient comfort.

[0074] Example 5:

[0075] As attached Figure 2 As shown, the difference from Embodiment 4 is that a sampling pump 21 for extracting liquid is also fixedly connected inside the handle 1 with screws. The sampling pump 21 is electrically connected to the controller. The input end of the sampling pump 21 is connected to the side of the sleeve 2 away from the handle 1, and the output end of the sampling pump 21 is connected to a storage tank for storing liquid. In this embodiment, the storage tank is detachably connected to the handle 1.

[0076] The specific implementation process is as follows:

[0077] During surgery, when a liquid sample needs to be obtained, the controller activates the sampling pump 21 to draw in the liquid sample and store it in the storage tank. After sampling is completed, medical staff can quickly remove the entire storage tank, seal it, and send it for testing. This design enables immediate retrieval and storage of liquid samples, reducing the problems of sample spillage, contamination, or confusion with tissue samples that may occur in traditional methods. It is suitable for complex surgical scenarios that require the simultaneous acquisition of multiple types of samples.

[0078] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A general surgical clinical sampling device, comprising a handle (1), wherein a sleeve (2) is fixedly connected to the handle (1), characterized in that, The end of the sleeve (2) away from the handle (1) is provided with a cutting mechanism for cutting the sample, a suction mechanism for sucking up the sample and a clamping mechanism for holding the sample. It also includes a drive mechanism, which is used to drive the cutting mechanism, the suction mechanism and the clamping mechanism to work together; when the drive mechanism controls the cutting mechanism to be in an open state, the suction mechanism is started simultaneously to suck the target sample into the sleeve (2); when the drive mechanism controls the cutting mechanism to be closed to cut the sample, the clamping mechanism is driven simultaneously to fix the cut sample.

2. The general surgery clinical sampling device according to claim 1, characterized in that, The cutting mechanism includes several first cutting blades (3) and several second cutting blades (4). The first cutting blades (3) are all located on the side of the second cutting blades (4) away from the sleeve (2). The end of the sleeve (2) away from the handle (1) is rotatably fitted with an internal gear ring (5). The internal gear ring (5) is circumferentially meshed with several driven gears (6). The first cutting blades (3) and the second cutting blades (4) are respectively fixedly connected to the driven gears (6) at intervals. The driving mechanism is used to drive the internal gear ring (5) to rotate.

3. The general surgery clinical sampling device according to claim 2, characterized in that, The drive mechanism includes a controller and a drive component (7). The controller and the drive component (7) are electrically connected. The drive component (7) is fixedly connected to the inner wall of the handle (1). The output shaft of the drive component (7) is coaxially fixedly connected to a drive shaft (8). The end of the drive shaft (8) away from the drive component (7) is coaxially fixedly connected to a drive gear (9). An arc-shaped gear ring (10) is fixedly connected to the outer wall of the internal gear ring (5). The drive gear (9) and the arc-shaped gear ring (10) mesh with each other.

4. The general surgery clinical sampling device according to claim 3, characterized in that, The clamping mechanism includes a limiting ring (11) fixedly connected to the inner wall of the sleeve (2), and a number of clamping blocks (12) are slidably connected to the limiting ring (11) in the circumferential direction; a rotating disk (13) is rotatably fitted on the side of the limiting ring (11) away from the clamping block (12), and the rotating disk (13) is fixedly connected to the internal gear ring (5); a number of arc-shaped grooves are opened in the circumferential direction of the rotating disk (13), and a sliding rod (14) is slidably fitted in each arc-shaped groove, and the sliding rod (14) is fixedly connected to the clamping block (12).

5. The general surgery clinical sampling device according to claim 4, characterized in that, The suction mechanism includes a suction cylinder (15) fixedly connected to the inner wall of the handle (1), a piston plate (16) slidingly fitted on the inner wall of the suction cylinder (15), and a transmission rod (17) fixedly connected to the piston plate (16); a transmission tube is connected to the side of the suction cylinder (15) away from the transmission rod (17), and the end of the transmission tube away from the suction cylinder (15) is connected to the inside of the sleeve (2); the driving mechanism is used to drive the transmission rod (17) to move.

6. The general surgery clinical sampling device according to claim 5, characterized in that, The drive mechanism also includes a lead screw (18) coaxially fixedly connected to the drive shaft (8), a nut seat (19) threadedly fitted on the lead screw (18), and the nut seat (19) slidingly fitted with the inner wall of the handle (1); the transmission rod (17) is fixedly connected to the outer wall of the nut seat (19).

7. The general surgery clinical sampling device according to claim 6, characterized in that, A camera is also fixedly connected to the end of the sleeve (2) away from the handle (1). The controller is used to acquire the image information collected by the camera and control the drive (7) to run based on the image information.

8. The general surgery clinical sampling device according to claim 7, characterized in that, Each clamping block (12) is fixedly connected with a flexible layer (20).

9. The general surgery clinical sampling device according to claim 8, characterized in that, The outer wall of the sleeve (2) is coated with a hydrophilic coating to reduce friction.

10. The general surgery clinical sampling device according to claim 9, characterized in that, Inside the handle (1), a sampling pump (21) for extracting liquid is also fixedly connected. The sampling pump (21) is electrically connected to the controller. The input end of the sampling pump (21) is connected to the side of the sleeve (2) away from the handle (1), and the output end of the sampling pump (21) is connected to a storage tank for storing liquid.

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