Tumor sampling device for oncology

Abstract

A tumor sampling device for oncology. The tumor sampling device comprises a clamping device, and the clamping device comprises a handle section, a bent section integrally formed with the handle section, and a clamping section also integrally formed with the bent section, wherein a disposable sheath is sleeved on the clamping section; a protective pad is mounted on the handle section; and a connecting block is fixedly connected to one end of the handle section. The bent section of the clamping device fits the anatomical structure of a human body, enabling the accurate positioning of a tumor, and the disposable sheath can protect a sample, thus greatly increasing the sampling accuracy; and in terms of operation performance, the protective pad for a handle reduces the hand fatigue of medical staff, a lifting ring facilitates storage and retrieval, and a limiting and rebounding device makes a clamping operation convenient and efficient, thus effectively improving the convenience of operation. Compared with traditional tools, the device effectively addresses the shortcomings of traditional sampling tools, and strongly guarantees the accuracy, safety and convenience of tumor sampling.

Description

A tumor sampling device for oncology Technical Field

[0001] The present invention relates to the technical field of sampling devices, in particular to a tumor sampling device used in oncology. Background Art

[0002] In the clinical diagnosis and treatment of oncology, accurately obtaining tumor tissue samples plays a vital role in disease diagnosis, staging, and the formulation of subsequent treatment plans. Traditional tumor sampling tools often have many limitations and are unable to meet the growing medical needs.

[0003] Some previous sampling forceps had simple and crude structural designs, and usually did not fully consider the complexity of the human anatomy. For example, the bending angle did not fit the surgical approach, making it difficult for medical staff to accurately reach the tumor site during operation. This not only increased the difficulty of operation, but also easily touched the surrounding healthy tissue by mistake, causing unnecessary damage, bringing additional pain to patients, and prolonging postoperative recovery time.

[0004] Furthermore, most traditional tools lack effective protective measures during sample clamping. Direct metal-to-metal clamping can easily cause mechanical damage to fragile tumor tissue, such as squeezing and tearing, which can damage the integrity of tissue cells and affect the accuracy of pathological test results. Furthermore, sample residue is a prominent issue. Repeatedly used sampling components can easily retain tumor tissue debris in gaps and grooves. If not thoroughly cleaned, cross-contamination can easily occur, interfering with the purity of subsequent samples and misleading diagnostic conclusions.

[0005] Furthermore, from an operational perspective, the handles of traditional sampling devices are simplistically designed and lack ergonomic considerations. Prolonged gripping can easily lead to hand fatigue in medical staff, and subtle hand tremors can be amplified during high-precision sampling operations, reducing sampling accuracy. Furthermore, the devices are difficult to store and retrieve, lacking specialized auxiliary structures. In a busy clinical environment, improper placement can easily lead to loss or damage.

[0006] In view of the above shortcomings, the present invention aims to provide a new tumor sampling device for oncology. Through sophisticated structural design, such as a unique clamping device structure, including a curved section adapted to human anatomy, a clamping section with protection, and optimized operating auxiliary components such as a handle with a padded handle and a ring for easy hanging, it effectively solves many problems faced by traditional sampling devices and improves the accuracy, safety and convenience of tumor sampling. Summary of the Invention

[0007] (1) Technical problems solved

[0008] In view of the deficiencies of the prior art, the present invention provides a tumor sampling device for oncology, which solves the problems raised in the above-mentioned background technology.

[0009] (2) Technical solution

[0010] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0011] A tumor sampling device for use in oncology, comprising a clamping device, the clamping device comprising a handle segment, a curved segment integrally formed with the handle segment, and a clamping segment integrally formed with the curved segment; a disposable sheath is sleeved on the clamping segment; a protective pad is mounted on the handle segment; one end of the handle segment is fixedly connected to a connecting block; and one end of the connecting block is fixedly connected to a lifting ring;

[0012] The cam is fixedly provided with a locking mechanism, and the locking mechanism is locked in the locking cam, and the locking mechanism can be locked to the locking cam by locking the locking mechanism.

[0013] Furthermore, the shape and size of the disposable sheath are the same as those of the clamping section, and clamping teeth are provided on the disposable sheath.

[0014] Furthermore, the disposable sheath is made of transparent medical plastic material, which makes it easy for medical staff to observe the sampling situation in real time. Its clamping teeth are frosted, which can not only ensure that the tumor tissue sample is firmly clamped, but also prevent the sample from being damaged during the clamping process. The disposable sheath and the clamping section are connected by an interference fit, which makes it stable and not easy to fall off after installation.

[0015] Furthermore, the clamping device is flat in shape as a whole.

[0016] Furthermore, the setting position of the toggle rod is at a place where the spiral gap of the pressure spring is larger and is located on one side. When the pressure spring is stretched or compressed, there will be no movement interference between the pressure spring and the toggle rod.

[0017] Furthermore, the diameter of the filling block needs to be the same as the inner diameter of the lower sleeve to maintain the overall linear motion.

[0018] Furthermore, the semicircular arc block 1 and the semicircular arc block 2 are designed to have the same interval, and the semicircular arc block 1 and the semicircular arc block 2 form a full circle.

[0019] Furthermore, after the semi-circular arc block 1 is rotated, it is engaged between the semi-circular arc blocks 2 to form a fixed position.

[0020] Furthermore, the pressure spring is in a half-compression state; the pressure spring is further compressed downward, and the clamping section is in an open state; the pressure spring is restored, and the clamping section is in a clamped state.

[0021] (3) Beneficial effects

[0022] Compared with the prior art, the present invention provides a tumor sampling device for oncology, which has the following beneficial effects:

[0023] In terms of precise sampling, the curved section of the clamping device of the present invention fits the human anatomical structure and can accurately locate tumors. The disposable sheath can protect the sample, greatly improving the sampling accuracy. In terms of operational performance, the handle pad reduces the fatigue of the medical staff's hands, the hanging ring is convenient for storage and retrieval, and the limit rebound device makes the clamping operation convenient and efficient, effectively improving the operational convenience. Compared with traditional tools, this device effectively solves the shortcomings of traditional sampling tools and effectively guarantees the accuracy, safety and convenience of tumor sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic structural diagram of the present invention;

[0025] FIG2 is a schematic structural diagram of a position limiting and rebounding device according to the present invention;

[0026] FIG3 is a schematic diagram of the internal structure of the upper sleeve of the present invention;

[0027] FIG4 is a schematic diagram of the internal structure of the lower sleeve of the present invention.

[0028] In the figure: 1. Handle section; 2. Bending section; 3. Clamping section; 4. Disposable sheath; 5. Protective pad; 6. Connecting block; 7. Lifting ring; 8. Swivel seat; 9. Upper swivel buckle; 10. Lower swivel buckle; 11. Lower sleeve; 12. Upper sleeve; 13. Pressure spring; 14. Ring; 15. Toggle rod; 16. Filling block; 17. Positioning column; 18. Semicircular arc block 1; 19. Semicircular arc block 2. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example

[0031] As shown in Figures 1-4, one embodiment of the present invention provides a tumor sampling device for use in oncology, including a clamping device comprising a handle segment 1, a curved segment 2 integrally formed with the handle segment 1, and a clamping segment 3 integrally formed with the curved segment 2.

[0032] The handle section 1 and curved section 2 are integrally formed, ensuring structural stability and operational consistency. A protective pad 5 is attached to the outside. Made of soft and flexible silicone, it conforms closely to the curves of the medical practitioner's hand, effectively alleviating hand fatigue caused by prolonged gripping. Furthermore, the surface of the pad 5 features breathable grooves to enhance air circulation, preventing operational errors caused by sweaty palms and providing a comfortable and stable grip for medical professionals.

[0033] One end is connected to a hanging ring 7 via a connecting block 6. This securely connects the handle segment 1 and the hanging ring 7, ensuring structural strength. The hanging ring 7 features a non-slip surface, making it easy for medical personnel to hang or retrieve the device. Made of medical stainless steel, it offers excellent corrosion resistance, ensuring long-term safety and reliability, and facilitating storage and management of the device in a clinical setting.

[0034] The curved section 2 is integrally formed with the handle section 1 and the clamping section 3, and its curvature is meticulously designed. Optimized based on human anatomy and common surgical approaches for tumor locations, the clamping section 3 precisely reaches the tumor site, effectively minimizing contact and damage to surrounding healthy tissue. This significantly improves sampling accuracy and safety, reducing surgical risk and pain for patients.

[0035] The clamping section 3 and the bending section 2 are integrally formed. As the component that directly contacts the tumor tissue, it is sleeved with a disposable sheath 4. The shape and size of the disposable sheath 4 are perfectly matched to the clamping section 3, and it is made of transparent medical plastic material, which is convenient for medical staff to clearly observe the sampling situation in real time during the operation. The clamping teeth set on the sheath are frosted, which can not only firmly clamp the tumor tissue sample and prevent the sample from slipping during the clamping process, but also avoid mechanical damage such as squeezing and tearing to the sample, ensuring the integrity of tissue cells and the accuracy of pathological test results. The interference fit sleeve method of the disposable sheath 4 and the clamping section 3 ensures that it is stable and will not fall off after installation, and can be directly replaced after use, effectively avoiding cross-contamination of samples and ensuring the purity and reliability of each sampling;

[0036] The handle section 1 is fixedly connected to a swivel seat 8 at a position close to the curved section 2, and a position limiting rebound device is provided in the swivel seat 8;

[0037] The position-limiting and rebounding mechanism, with a swivel base 8 fixed to the handle section 1 near the curved section 2, provides a stable mounting base for the position-limiting and rebounding mechanism. The swivel base 8 is pivotally connected to the upper and lower swivel buckles 9 and 10, ensuring smooth and flexible relative movement between the components. This is the key to achieving precise control of the clamping section 3.

[0038] The upper and lower swivel buckles 9, 10 are rotatably connected to the swivel base 8 and connect the upper sleeve 12, lower sleeve 11, and pressure spring 13. These two components work together, coordinating with the expansion and contraction of the pressure spring 13 to achieve relative rotation and positioning of the upper and lower sleeves 12, 11, thereby precisely controlling the opening and closing of the clamping section 3 and ensuring stable and accurate capture of tumor tissue samples during the sampling process.

[0039] The lower sleeve 11 is fixedly connected to the lower turnbuckle 10 and internally rotates to engage the upper sleeve 12. It is equipped with matching semi-circular blocks 19 at intervals. During operation, the device tightly cooperates with the upper sleeve 12, ensuring the precision and stability of relative motion. Semi-circular blocks 19 interact with semi-circular blocks 18 of the upper sleeve 12 to lock and secure the device in place, ensuring structural stability during sample clamping, preventing sample displacement or loss, and improving the success rate and reliability of sampling.

[0040] The upper sleeve 12 is rotatably sleeved within the lower sleeve 11. Its upper end is connected to the toggle rod 15 via the collar 14, and its lower end is connected to the packing block 16 and the positioning column 17. Under the action of the pressure spring 13, the upper sleeve 12 performs linear motion and rotation relative to the lower sleeve 11, driving the clamping section 3 to open and clamp. The collar 14 and the toggle rod 15 provide a convenient operating interface for medical staff, making it easy to control the movement of the upper sleeve 12. The diameter of the packing block 16 is the same as the inner diameter of the lower sleeve 11, ensuring smooth and stable linear motion of the upper sleeve 12 within the lower sleeve 11. The positioning column 17 provides a precise installation position for the semicircular block 18, ensuring the overall function of the device.

[0041] The pressure spring 13 is sleeved on the outside of the lower sleeve 11 and the upper sleeve 12, with its two ends fixed to the end faces of the upper turn buckle 9 and the lower turn buckle 10 respectively, and is initially in a half-compression state. This design cleverly utilizes the elastic potential energy of the spring. When medical staff apply external force to compress the pressure spring 13 downward, the clamping section 3 opens, facilitating access to tumor tissue; after the external force is removed, the spring returns to its original state, and the clamping section 3 automatically clamps the sample. The elastic coefficient of the spring has been precisely calculated and debugged to ensure that during operation, the upper sleeve 12 and the lower sleeve 11 can respond to moderate external forces to achieve fast and accurate clamping and release actions. At the same time, it ensures that the spring has sufficient fatigue life to meet the needs of multiple clinical uses and reduce the inconvenience and cost increase caused by frequent component replacement.

[0042] Collar 14 and Toggle Lever 15: Collar 14 is connected to the upper end of upper sleeve 12, located below upper turnbuckle 9. The toggle lever 15, located at one end of the collar, is positioned near the area with the largest helical gap in pressure spring 13. This arrangement ensures that the toggle lever 15 does not interfere with the spring's movement during tension or compression, ensuring smooth and reliable operation. By toggling the toggle lever 15, medical personnel can easily control the movement of upper sleeve 12, thereby precisely adjusting the opening and closing state of clamping section 3, improving operational efficiency and convenience.

[0043] A stuffing block 16 is connected to the lower end of the upper sleeve 12, and its diameter is strictly identical to the inner diameter of the lower sleeve 11. During operation, the stuffing block 16 guides and stabilizes the lower sleeve 11, ensuring smooth linear motion of the upper sleeve 12 as a whole, preventing it from shifting or shaking during movement, and ensuring the accuracy and stability of the opening and closing of the clamping section 3, effectively improving the precision and reliability of the sampling operation.

[0044] Positioning column 17, semi-circular block 18 and semi-circular block 2 19, the positioning column 17 is fixed under the filling block 16 to provide stable support for the semi-circular block 18. The semi-circular block 18 is in a quarter shape and is arranged on the positioning column 17. Together with the semi-circular block 2 19 with the same spacing in the lower sleeve 11, it constitutes a complete positioning structure. When the semi-circular block 18 is rotated to a certain angle, it can be accurately engaged between the semi-circular block 2 19 to achieve relative fixation of the upper sleeve 12 and the lower sleeve 11. When clamping tumor tissue samples, this structure can effectively prevent the device from loosening due to external force or vibration, ensure that the sample is always in a stable clamping state, ensure the safety and accuracy of the sampling process, and provide reliable sample conditions for subsequent pathological testing;

[0045] This tumor sampling device primarily relies on the coordinated operation of a clamping device and a position-limiting and rebounding mechanism. During operation, a medical professional manually activates the toggle lever 15, driving the upper sleeve 12 downward against the elastic force of the pressure spring 13. This causes the packing block 16, positioning post 17, and clamping section 3 connected to the upper sleeve 12 to simultaneously move downward. The clamping section 3 then opens, ready to clamp the tumor tissue. Once the tumor tissue is located between the clamping sections 3, the toggle lever 15 is released, causing the pressure spring 13 to rebound, pushing the upper sleeve 12 upward, thereby allowing the clamping sections 3 to clamp the tumor tissue sample. During this process, the relative movement of the lower sleeve 11 and the upper sleeve 12 is limited and guided by the upper and lower turnbuckles 9 and 10 in the turntable 8, ensuring stable movement. The disposable sheath 4, which is attached to the clamping section 3, protects the tumor tissue from damage and prevents cross-contamination of the sample. The handle section 1 is convenient for medical staff to hold and press, the pad 5 reduces hand fatigue, and the connecting block 6 and the hanging ring 7 facilitate storage and removal of the device.

[0046] As shown in Figure 1, in some embodiments, the shape and size of the disposable sheath 4 are the same as those of the clamping section 3, and clamping teeth are provided on the disposable sheath 4; this design of the disposable sheath 4 is of great significance. It is the same shape as the clamping section 3, ensuring a tight fit, and will not loosen or shift during use, thereby ensuring operational stability. The clamping teeth provided on the disposable sheath 4 can effectively enhance the clamping force on tumor tissue samples. When clamping the sample, the clamping teeth can be embedded in the tissue surface to prevent the sample from slipping, thereby ensuring the success rate of sampling. At the same time, the presence of the clamping teeth also shares the pressure of the clamping section 3 directly contacting the sample, reducing the risk of damage to the sample, helping to maintain the integrity of the sample, and providing a guarantee for subsequent accurate pathological testing.

[0047] As shown in FIG1 , in some embodiments, the disposable sheath 4 is made of a transparent medical plastic material, facilitating real-time observation of sampling by medical personnel. The frosted teeth ensure secure gripping of the tumor tissue sample while preventing damage during the gripping process. The disposable sheath 4 and the clamping section 3 utilize an interference fit, ensuring a secure and resilient fit once installed. The transparent medical plastic material allows medical personnel to clearly observe the tumor tissue sample during operation, enabling more precise control of gripping force and position, improving sampling accuracy. The frosted teeth ensure sufficient friction to securely grip the tumor tissue sample while preventing scratches or damage to the sample structure due to excessive surface roughness. This effectively prevents sample damage during gripping, ensuring sample integrity and providing a reliable sample foundation for subsequent pathological testing. The disposable sheath 4 and the clamping section 3 are connected by an interference fit. This tight connection ensures that the sheath will not fall off accidentally during use, ensures the continuity and safety of the operation, avoids problems such as sample loss or contamination caused by loose sheath, and makes the entire sampling process more stable and reliable.

[0048] As shown in FIG1 , in some embodiments, the clamping device is flat in shape as a whole; the clamping device is designed to be flat in shape as a whole, which has many advantages. In actual operation, the flat shape enables it to pass through the natural cavity or narrow surgical channel of the human body more conveniently, reducing unnecessary squeezing and damage to surrounding tissues, and making it easier to approach the tumor site. Compared with traditional non-flat sampling devices, it is superior in operational flexibility, can better adapt to different anatomical structures and surgical environments, provides favorable conditions for precise sampling, effectively improves the success rate and safety of tumor sampling, and reduces surgical risks and patient pain.

[0049] As shown in Figure 3, in some embodiments, the setting position of the toggle rod 15 is at the place where the spiral gap of the pressure spring 13 is larger, and is located on one side. When the pressure spring 13 is stretched or compressed, the pressure spring 13 will not interfere with the movement of the toggle rod 15; the design of the toggle rod 15 being located at the place where the spiral gap of the pressure spring 13 is larger and on one side is very clever. During operation, when it is necessary to control the upper sleeve 12 and then adjust the opening and closing of the clamping section 3 through the toggle rod 15, regardless of whether the pressure spring 13 is in a stretched or compressed state, its own spiral structure will not hinder the movement of the toggle rod 15. This ensures that medical staff can smoothly control the device during operation, and the accuracy and efficiency of the operation will not be affected by the mutual interference between the spring and the toggle rod 15, so that the entire sampling process can be carried out stably and efficiently, greatly improving the reliability and ease of use of the device.

[0050] As shown in Figure 1, in some embodiments, the diameter of the stuffing block 16 needs to be the same as the inner diameter of the lower sleeve 11 to maintain overall linear motion; the design that the diameter of the stuffing block 16 is the same as the inner diameter of the lower sleeve 11 is crucial. When the device is in operation, when the pressure spring 13 retracts and drives the upper sleeve 12 to move, the stuffing block 16 plays a precise guiding and stabilizing role in the lower sleeve 11. The same diameter ensures that the stuffing block 16 fits tightly against the inner wall of the lower sleeve 11 without any shaking space, so that the upper sleeve 12 can only move linearly along the axial direction of the lower sleeve 11, avoiding deviations in the motion trajectory of the clamping segment 3 caused by eccentricity or offset. This stable linear motion ensures the accuracy of the clamping segment 3 during the opening and clamping process, thereby improving the accuracy and reliability of the tumor sampling operation, ensuring that tumor tissue samples can be accurately obtained, and providing strong support for subsequent pathological diagnosis.

[0051] As shown in Figures 3 and 4, in some embodiments, the semi-circular block 18 and the semi-circular block 2 19 are designed to have the same spacing, forming a complete circle. When clamping a tumor tissue sample, when it is necessary to fix the relative position of the upper sleeve 12 and the lower sleeve 11, the semi-circular block 18 can be precisely engaged between the semi-circular block 2 19 after rotating a certain angle. This tight engagement ensures that the upper sleeve 12 and the lower sleeve 11 do not move relative to each other, allowing the clamping state of the clamping section 3 to be stably maintained, effectively preventing the sample from loosening or falling off due to external forces or vibrations during the sampling process, ensuring the stability and reliability of sampling, providing an important guarantee for obtaining high-quality tumor tissue samples, and helping to improve the accuracy of subsequent pathological test results.

[0052] As shown in FIG3 , in some embodiments, the semicircular block 18 rotates and engages between the semicircular block 2 19 to secure the sample. During tumor sampling, after the clamping section 3 clamps the tumor tissue sample, the rotational engagement of the semicircular block 18 effectively resists potential external interference, such as slight vibrations during surgery or inadvertent contact by medical staff. This secure fixation ensures that the relative positions of the upper sleeve 12 and the lower sleeve 11 remain unchanged, thereby maintaining the stable grip of the sample by the clamping section 3, preventing the sample from shifting or falling off during transfer or subsequent operations. This significantly improves the success rate and reliability of sampling, provides an accurate sample basis for tumor diagnosis, and helps improve the accuracy and efficiency of clinical diagnosis.

[0053] As shown in Figure 1, in some embodiments, the pressure spring 13 is in a half-compressed state. Further downward compression of the pressure spring 13 opens the clamping section 3, and restoring the pressure spring 13 tightens the clamping section 3. In this initial state, this moderate compression provides a stable elastic potential energy foundation for subsequent operations. When tumor tissue needs to be clamped, medical personnel apply external force to further compress the pressure spring 13. This further increases the stored elastic potential energy, and through the coordinated operation of the upper sleeve 12, the packing block 16, and other components, the clamping section 3 smoothly opens, allowing it to be accurately placed around the tumor tissue. Once the external force is removed, the pressure spring 13 quickly rebounds due to its own elastic restoring force, driving the relevant components to reverse motion, allowing the clamping section 3 to quickly clamp the tumor tissue sample. This mechanism, which controls the opening and closing of the clamping section 3 based on the elastic changes of the pressure spring 13, is simple to operate and highly responsive, effectively improving the efficiency and accuracy of tumor sampling, reducing the adverse effects on the sample caused by complex or delayed operation, and ensuring high-quality samples for subsequent pathological analysis.

[0054] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tumor sampling device for oncology, comprising a clamping device, characterized in that: The clamping device comprises a handle section (1), a bending section (2) integrally formed with the handle section (1), and a clamping section (3) integrally formed with the bending section (2); a disposable sheath (4) is sleeved on the clamping section (3); a protective pad (5) is installed on the handle section (1); one end of the handle section (1) is fixedly connected to a connecting block (6); one end of the connecting block (6) is fixedly connected to a lifting ring (7); The handle section (1) is fixedly connected to a swivel seat (8) at a location close to the bending section (2), and a limit rebound device is provided in the swivel seat (8). The limit rebound device comprises an upper swivel buckle (9) and a lower swivel buckle (10) which are respectively rotatably connected to the swivel seat (8), a lower sleeve (11) is fixedly connected to the lower swivel buckle (10), an upper sleeve (12) is rotatably sleeved in the lower sleeve (11), and pressure springs (13) are sleeved outside the lower sleeve (11) and the upper sleeve (12), and the two ends of the pressure spring (13) are respectively engaged with the end surfaces of the upper swivel buckle (9) and the lower swivel buckle (10). The upper sleeve (12) is fixedly connected to the lower end of the upper turn buckle (9) in a snap-fitting and rotatable manner, the upper end of the upper sleeve (12) is fixedly connected to a sleeve ring (14) located below the upper turn buckle (9), one end of the sleeve ring (14) is provided with a toggle rod (15), the lower end of the upper sleeve (12) is fixedly connected to a filling block (16), the lower part of the filling block (16) is fixedly connected to a positioning column (17), the positioning column (17) is provided with a plurality of quarter-shaped semicircular arc blocks (18), and the lower sleeve (11) is provided with matching semicircular arc blocks (19) at intervals.

2. A tumor sampling device for oncology according to claim 1, characterized in that: The shape and size of the disposable sheath (4) are the same as those of the clamping section (3), and clamping teeth are provided on the disposable sheath (4).

3. A tumor sampling device for oncology according to claim 2, characterized in that: The disposable sheath (4) is made of transparent medical plastic material, which is convenient for medical staff to observe the sampling situation in real time. The clamping teeth are frosted to ensure that the tumor tissue sample is firmly clamped and prevent the sample from being damaged during the clamping process. The disposable sheath (4) and the clamping section (3) are connected by interference fit, and are stable and not easy to fall off after installation.

4. A tumor sampling device for oncology according to claim 1, characterized in that: The clamping device is flat in shape as a whole.

5. The tumor sampling device for oncology according to claim 1, characterized in that: The setting position of the toggle rod (15) is at a place where the spiral gap of the pressure spring (13) is larger and is located on one side. When the pressure spring (13) is stretched or compressed, there will be no movement interference between the pressure spring (13) and the toggle rod (15).

6. A tumor sampling device for oncology according to claim 1, characterized in that: The diameter of the stuffing block (16) needs to be the same as the inner diameter of the lower sleeve (11) to maintain the overall linear motion.

7. A tumor sampling device for oncology according to claim 1, characterized in that: The semicircular arc block 1 (18) and the semicircular arc block 2 (19) are designed to have the same spacing, and the semicircular arc block 1 (18) and the semicircular arc block 2 (19) form a full circle.

8. A tumor sampling device for oncology according to claim 7, characterized in that: After the semicircular arc block 1 (18) is rotated, it is engaged between the semicircular arc blocks 2 (19) to be fixed.

9. The tumor sampling device for oncology according to claim 1, characterized in that: The pressure spring (13) is in a half-compression state; the pressure spring (13) is further compressed downward, and the clamping section (3) is in an open state; the pressure spring (13) is restored, and the clamping section (3) is in a clamped state.

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