Sampling device convenient for tumor separation and separation method thereof

Abstract

The invention relates to the technical field of medical equipment, and provides a sampling device facilitating tumor separation and a separation method thereof.The sampling device comprises a needle tube, the top of the needle tube is fixedly connected with a tube barrel, one end of the top of the tube barrel is fixedly connected with an electric telescopic rod, and the output end of the electric telescopic rod is fixedly connected with a movable plate; a sampling mechanism is arranged at the bottom end of the movable pipe and comprises a pressing rod, a plurality of cutting knives are rotationally connected to the outer side of the bottom of the movable pipe, a plurality of connecting rods are rotationally connected to the bottom end of the pressing rod, and the ends, away from the pressing rod, of the connecting rods are rotationally connected with the middles of the corresponding cutting knives; the top end of the pressing rod is fixedly connected with a pressing block, the middle of the movable pipe is fixedly connected with a piston, and the other end of the top of the pipe barrel is provided with a driving piece. According to the invention, the cutting range of the cutting knife can be greatly increased, and large-size tumor tissues can be obtained to provide enough samples for subsequent detection work.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a sampling device and a separation method thereof for conveniently separating a tumor. Background Art

[0002] In medicine, tumor refers to abnormal lesions of cells, not necessarily lumps on the body. Cancer is the most common malignant tumor. Malignant tumors are divided into epithelial "cancer" and mesenchymal "sarcoma". In malignant tumors, these proliferating cells will not only gather into lumps, but also spread to other parts of the body for proliferation, causing harm to the human body. After discovering a tumor, doctors need to take samples to test whether the tumor is malignant or benign, so that doctors can provide symptomatic treatment. Tumor sampling can be achieved with a scalpel, but this method causes large wounds and causes great harm to patients. Therefore, syringes are often used for tumor sampling. The negative pressure generated by the syringe when drawing is used to absorb the tumor tissue. This method causes small wounds and reduces the pain of patients.

[0003] After searching, the Chinese patent publication number CN220045945U disclosed "a tumor sampling device for convenient separation of tumors, which comprises: a separation sampling device body, and a disinfection device; the separation sampling device body comprises a shell, a sliding plate slidably connected to the inner wall of the shell, a plug rod fixedly connected to the sliding plate, an electric shaft fixedly connected to the plug rod, and a cutting knife fixedly connected to the electric shaft; wherein the electric shaft sleeve is provided with a torsion spring, one end of the torsion spring is fixedly connected to the cutting knife, and the other end of the torsion spring is fixedly connected to the side wall of the plug rod".

[0004] This type of patent inserts an outer needle tube into the tumor and pushes a large push rod, so that the inner needle tube enters the outer needle tube, and the tumor enters the inner needle tube, so that the blade cuts and separates the tumor squeezed into the small opening. However, since the blade is inside the outer needle tube, its diameter is small and its cutting area is small, the volume of the tumor block cut by the blade is small, and the sample of tumor tissue provided for detection is small, which is easy to affect the accuracy of subsequent sample detection. In view of this, the present invention proposes a sampling device and a separation method for conveniently separating tumors. Summary of the invention

[0005] The present invention provides a sampling device and a separation method for conveniently separating tumors, which solves the problem of less tumor samples sampled in the prior art.

[0006] The technical solution of the present invention is as follows: A sampling device for conveniently separating tumors comprises a needle tube, the top of the needle tube is fixedly connected with a tube, one end of the top of the tube is fixedly connected with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a movable plate, the middle part of the movable plate is rotatably connected with an movable tube that penetrates the movable plate, the movable tube penetrates the tube and extends to the inner side of the needle tube, the movable tube is movably connected with the tube, the bottom end of the movable tube is provided with a sampling mechanism, the sampling mechanism comprises a pressure rod that penetrates the movable tube, the pressure rod is slidably connected with the movable tube, the outer side of the bottom of the movable tube is rotatably connected with a plurality of cutting knives, the plurality of cutting knives are distributed around the movable tube at equal angles, the bottom end of the pressure rod is rotatably connected with a plurality of connecting rods corresponding to the cutting knives one by one, the ends of the plurality of connecting rods away from the pressure rod are rotatably connected with the middle part of the corresponding cutting knives, the top end of the pressure rod is fixedly connected with a pressing block, the middle part of the movable tube is fixedly connected with a piston, the piston is slidably connected with the inner wall of the tube, and the other end of the top of the tube is provided with a driving member for driving the movable tube to rotate.

[0007] Preferably, the sampling mechanism further comprises a clamping block, wherein the clamping block is fixedly connected to the pressure rod, and a limiting member for limiting and fixing the clamping block is disposed on the top of the movable tube.

[0008] Preferably, the limiting member includes a socket, the socket is fixedly connected to the top of the movable tube, the blocking block is slidably matched with the socket, one side of the socket is slidably connected to a sliding rod that passes through the side wall of the socket, one end of the sliding rod is fixedly connected to the limiting block, the limiting block is in contact with the top wall of the blocking block, and the other end of the sliding rod is fixedly connected to a pulling block.

[0009] Preferably, the side wall of the holder is provided with a clearance groove slidably matched with the limit block, and the slide rod is sleeved with a spring, one end of the spring abuts against the limit block, and the other end of the spring abuts against the inner wall of the clearance groove.

[0010] Preferably, the outer diameter of the movable tube is smaller than the inner diameter of the needle tube, and the diameter of the pressure rod is smaller than the inner diameter of the movable tube.

[0011] Preferably, the driving member includes a micro motor, which is fixedly mounted on the top of the tube, the output shaft of the micro motor is fixedly connected to a telescopic shaft, the telescopic shaft is rotatably connected to the movable plate, the top end of the telescopic shaft is fixedly connected to a first gear, the top end of the movable tube is fixedly connected to a second gear, and the second gear is meshed with the first gear.

[0012] Preferably, the telescopic shaft includes a sleeve shaft, the bottom end of the sleeve shaft is fixedly connected to the output shaft of the micro motor, the top end of the sleeve shaft is slidably connected with an insertion shaft, the insertion shaft is rotatably connected to the movable plate, the outer side of the insertion shaft is fixedly connected to a limit bar, and the limit bar is slidably connected to the inner wall of the sleeve shaft.

[0013] Preferably, a limiting groove matching the limiting strip is formed on the inner wall of the sleeve shaft, and the limiting strip can slide in the vertical direction along the limiting groove.

[0014] Preferably, a disinfection component is provided on the outside of the tube, and the disinfection component includes a liquid inlet pipe, the liquid inlet pipe is fixedly connected to the outside of the tube, a control valve is fixedly connected to the liquid inlet pipe, an alcohol conduit is fixedly connected to the inlet end of the control valve, and an alcohol supply device is externally connected to the inlet end of the alcohol conduit.

[0015] The present invention also provides a separation method for conveniently separating a tumor, which is implemented according to a sampling device for conveniently separating a tumor and comprises the following steps:

[0016] S1: First, the needle is inserted into the tumor through puncture, and then the electric telescopic rod is controlled to drive the movable plate to move downward, so that the movable tube moves downward, which makes the cutting knife move downward and completely slide out from the bottom of the needle tube;

[0017] S2: Applying force downward to the pressing block to make the pressing rod move downward, so that all the connecting rods apply thrust to the corresponding cutting knives, so that all the cutting knives are deployed outward at an inclined angle, and then the electric telescopic rod is controlled to drive the movable plate to continue to move downward, so that the movable tube drives the inclined cutting knives to be inserted into the tumor;

[0018] S3: The driving member drives the movable tube to rotate, so that all the cutting knives rotate in a circumferential direction, so that the cutting knives rotate in the tumor to cut part of the tissue, and then the electric telescopic rod is controlled to drive the movable plate to move upward, so that the cutting knives are stored in the needle tube, and the cutting knives continue to rotate, so that all the cutting knives move closer to the center and crush the cut tumor tissue;

[0019] S4: When the movable tube moves upward, the piston will slide upward, so that the pressure at the bottom of the tube is reduced, and the needle tube will suck in a large amount of crushed tumor tissue, thereby achieving the separation of tumor sampling tissue.

[0020] The working principle and beneficial effects of the present invention are as follows: the needle is inserted into the tumor through puncture, and then the electric telescopic rod is controlled to drive the movable plate to move downward, so that the movable tube moves downward, which makes the cutting knife move downward and completely slide out from the bottom of the needle tube, and then the pressing block is applied with force to make the pressing rod move downward, which makes all the connecting rods apply thrust to the corresponding cutting knives, so that all the cutting knives are spread outward at an inclined angle, and then the electric telescopic rod is controlled to drive the movable plate to continue to move downward, so that the movable tube drives the inclined cutting knife to be inserted into the tumor, and then the movable tube is driven to rotate by the driving member, so that all the cutting knives rotate circumferentially, so that the cutting knife rotates in the tumor to cut part of the tissue, which can greatly increase the cutting range of the cutting knife, and also can obtain a larger volume of tumor tissue to provide sufficient samples for subsequent detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Figure 1 A schematic diagram of the structure of a sampling device for conveniently separating tumors according to the present invention Figure 1 ;

[0023] Figure 2 A schematic diagram of the structure of a sampling device for conveniently separating tumors according to the present invention Figure 2 ;

[0024] Figure 3 It is a structural schematic diagram of the sampling mechanism of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the position limiting member of the present invention;

[0026] Figure 5 It is a schematic structural diagram of a driving member of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the telescopic shaft of the present invention;

[0028] Figure 7 It is a schematic structural diagram of the disinfection device of the present invention.

[0029] In the figure: 1. needle tube; 2. tube; 3. electric telescopic rod; 4. movable plate; 5. movable tube; 6. sampling mechanism; 61. pressure rod; 62. cutting knife; 63. connecting rod; 64. pressing block; 65. clamping block; 66. limiting member; 661. clamping seat; 662. sliding rod; 663. limiting block; 664. pulling block; 665. giving way groove; 666. spring; 7. driving member; 71. micro motor; 72. telescopic shaft; 721. sleeve shaft; 722. plug shaft; 723. limiting strip; 724. limiting groove; 73. first gear; 74. second gear; 8. piston; 9. disinfection member; 91. liquid inlet pipe; 92. control valve; 93. alcohol catheter. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0031] like Figure 1 to Figure 7 As shown, this embodiment proposes a sampling device for conveniently separating tumors, including a needle tube 1, a tube 2 is fixedly connected to the top of the needle tube 1, an electric telescopic rod 3 is fixedly connected to one end of the top of the tube 2, a movable plate 4 is fixedly connected to the output end of the electric telescopic rod 3, a movable tube 5 penetrating the movable plate 4 is rotatably connected to the middle of the movable plate 4, the movable tube 5 penetrates the tube 2 and extends to the inner side of the needle tube 1, the movable tube 5 is movably connected to the tube 2, and a sampling mechanism 6 is arranged at the bottom end of the movable tube 5, the sampling mechanism 6 includes a pressure rod 61 penetrating the movable tube 5, the pressure rod 61 is slidably connected to the movable tube 5, and the outer diameter of the movable tube 5 is smaller than that of the needle tube 1. The inner diameter size, the diameter of the pressure rod 61 is smaller than the inner diameter size of the movable tube 5, the outer side of the bottom of the movable tube 5 is rotatably connected with a plurality of cutting knives 62, and the plurality of cutting knives 62 are distributed at equal angles around the movable tube 5, the bottom end of the pressure rod 61 is rotatably connected with a plurality of connecting rods 63 corresponding to the cutting knives 62, and one end of the plurality of connecting rods 63 away from the pressure rod 61 is rotatably connected with the middle part of the corresponding cutting knives 62, the top end of the pressure rod 61 is fixedly connected with a pressing block 64, the middle part of the movable tube 5 is fixedly connected with a piston 8, the piston 8 is slidably connected to the inner wall of the tube 2, and the other end of the top of the tube 2 is provided with a driving member 7 for driving the movable tube 5 to rotate.

[0032] When sampling, the needle tube 1 is used for puncture and insertion into the tumor, and then the electric telescopic rod 3 is controlled to drive the movable plate 4 to move downward, so that the movable tube 5 moves downward, which makes the cutting knife 62 move downward and completely slide out from the bottom of the needle tube 1, and then the pressing block 64 is applied with force to make the pressing rod 61 move downward, so that all the connecting rods 63 apply thrust to the corresponding cutting knives 62, so that all the cutting knives 62 are spread outward at an inclined angle, and then the electric telescopic rod 3 is controlled to drive the movable plate 4 to continue to move downward, so that the movable tube 5 drives the inclined cutting knife 62 to insert into the tumor, and then the driving member 7 drives the movable tube 5 to rotate, so that all the cutting knives 62 rotate circumferentially, so that the cutting knife 62 rotates in the tumor to cut part of the tissue, which can greatly increase the cutting range of the cutting knife 62, and can also obtain a larger volume of tumor tissue to provide sufficient samples for subsequent detection work.

[0033] Furthermore, the sampling mechanism 6 also includes a block 65, which is fixedly connected to the pressure rod 61. A limiting member 66 for limiting and fixing the block 65 is provided on the top of the movable tube 5. The limiting member 66 includes a socket 661, which is fixedly connected to the top of the movable tube 5. The block 65 slidably cooperates with the socket 661. One side of the socket 661 is slidably connected with a slide bar 662 that runs through the side wall of the socket 661. One end of the slide bar 662 is fixedly connected to a limiting block 663, which contacts the top wall of the block 65. The other end of the slide bar 662 is fixedly connected to a pull block 664. A side wall of the socket 661 is provided with a yield groove 665 that slidably cooperates with the limiting block 663. A spring 666 is sleeved on the slide bar 662. One end of the spring 666 contacts the limiting block 663, and the other end of the spring 666 contacts the inner wall of the yield groove 665. When the cutting knife 62 needs to be unfolded, the sliding rod 662 slides by pulling the pull block 664 outward, so that the limit block 663 is fully matched with the yield groove 665. At this time, the spring 666 continues to exert potential energy under the squeezing of the limit block 663, and then exerts a downward force on the pressing block 64 to make the pressing rod 61 move downward, which makes all the connecting rods 63 apply a thrust to the corresponding cutting knives 62, so that all the cutting knives 62 are unfolded outward at an inclined angle. At the same time, the clamping block 65 is slidably matched with the clamping seat 661, and then the pull block 664 is released to release the potential energy of the spring 666. The limit block 663 returns to its initial position under the action of the spring 666 and restricts and fixes the clamping block 65, so that the cutting knife 62 maintains a stable unfolding angle.

[0034] Furthermore, the driving member 7 includes a micro motor 71, which is fixedly mounted on the top of the tube 2. The output shaft of the micro motor 71 is fixedly connected to a telescopic shaft 72, which is rotatably connected to the movable plate 4. The top of the telescopic shaft 72 is fixedly connected to a first gear 73, and the top of the movable tube 5 is fixedly connected to a second gear 74, which is meshed with the first gear 73. By starting the micro motor 71 to rotate the telescopic shaft 72, the first gear 73 is rotated, which in turn causes the second gear 74 to drive the movable tube 5 to rotate, thereby causing all the cutting knives 62 to rotate circumferentially, so that the cutting knives 62 rotate in the tumor to cut part of the tissue.

[0035] Further, the telescopic shaft 72 includes a sleeve shaft 721, the bottom end of which is fixedly connected to the output shaft of the micro motor 71, the top end of which is slidably connected to a plug shaft 722, which is rotatably connected to the movable plate 4, the outer side of the plug shaft 722 is fixedly connected to a limit bar 723, which is slidably connected to the inner wall of the sleeve shaft 721, and the inner wall of the sleeve shaft 721 is provided with a limit groove 724 matching the limit bar 723, and the limit bar 723 can slide in the vertical direction along the limit groove 724. When the movable tube 5 moves in the vertical direction, relative sliding occurs between the sleeve shaft 721 and the plug shaft 722, and the limit bar 723 can limit the relative rotation between the sleeve shaft 721 and the plug shaft 722, so that the two always keep synchronous rotation when the micro motor 71 is started, ensuring the stable transmission of power.

[0036] Furthermore, a disinfection component 9 is provided on the outside of the tube 2, and the disinfection component 9 includes a liquid inlet pipe 91, which is fixedly connected to the outside of the tube 2, and a control valve 92 is fixedly connected to the liquid inlet pipe 91, and an alcohol conduit 93 is fixedly connected to the inlet end of the control valve 92, and an alcohol supply device is externally connected to the inlet end of the alcohol conduit 93.

[0037] Working principle: When sampling, the needle tube 1 is used for puncture and insertion into the tumor, and then the electric telescopic rod 3 is controlled to drive the movable plate 4 to move downward, so that the movable tube 5 moves downward, which makes the cutting knife 62 move downward and completely slide out from the bottom of the needle tube 1, and then the pressing block 64 is applied with force to make the pressing rod 61 move downward, so that all the connecting rods 63 apply thrust to the corresponding cutting knives 62, so that all the cutting knives 62 are spread outward at an inclined angle, and then the electric telescopic rod 3 is controlled to drive the movable plate 4 to continue to move downward, so that the movable tube 5 drives the inclined cutting knife 62 to insert into the tumor, and then the micro motor 71 is started to rotate the telescopic shaft 72, so that the first gear 73 rotates, which makes the second gear 74 drive the movable tube 5 to rotate, so that all the cutting knives 62 rotate in the circumferential direction, so that the cutting knife 62 rotates in the tumor to cut part of the tissue, which can greatly increase the cutting range of the cutting knife 62;

[0038] Then, the electric telescopic rod 3 is controlled to drive the movable plate 4 to move upward, so that the cutting knife 62 is stored in the needle tube 1. At the same time, the cutting knife 62 continues to rotate, so that all the cutting knives 62 move toward the center and crush the cut tumor tissue. When the movable tube 5 moves upward, the piston 8 slides upward, so that the pressure at the bottom of the tube 2 is reduced, so that the needle tube 1 sucks in a large amount of crushed tumor tissue, thereby realizing the separation of tumor sampling tissue. Finally, the needle tube 1 is pulled out, and the electric telescopic rod 3 is controlled to drive the movable plate 4 to move downward, so that the movable tube 5 moves downward and drives the piston 8 to slide downward, so that the tumor tissue sample inside the needle tube 1 is squeezed out, and then the control valve 92 can be opened to allow the liquid inlet pipe 91 to introduce alcohol into the tube 2. The alcohol will flow out of the needle tube 1 and contact the cutting knife 62. In this way, the inner wall of the needle tube 1 and the cutting knife 62 can be disinfected, which is convenient for subsequent secondary use.

[0039] The present invention also provides a separation method for conveniently separating a tumor, which is implemented according to a sampling device for conveniently separating a tumor and comprises the following steps:

[0040] S1: First, the needle tube 1 is inserted into the tumor for puncture, and then the electric telescopic rod 3 is controlled to drive the movable plate 4 to move downward, so that the movable tube 5 moves downward, which makes the cutting knife 62 move downward and completely slide out from the bottom of the needle tube 1;

[0041] S2: By applying a force downward to the pressing block 64, the pressing rod 61 moves downward, so that all the connecting rods 63 apply a thrust to the corresponding cutting knives 62, so that all the cutting knives 62 are deployed outward at an inclined angle, and then the electric telescopic rod 3 is controlled to drive the movable plate 4 to continue to move downward, so that the movable tube 5 drives the inclined cutting knives 62 to be inserted into the tumor;

[0042] S3: The driving member 7 drives the movable tube 5 to rotate, so that all the cutting knives 62 rotate in a circumferential direction, so that the cutting knives 62 rotate in the tumor to cut part of the tissue, and then the electric telescopic rod 3 is controlled to drive the movable plate 4 to move upward, so that the cutting knives 62 are stored in the needle tube 1, and the cutting knives 62 continue to rotate, so that all the cutting knives 62 move toward the center and crush the cut tumor tissue;

[0043] S4: When the movable tube 5 moves upward, the piston 8 will slide upward, so that the pressure at the bottom of the tube 2 is reduced, and the needle tube 1 sucks in a large amount of crushed tumor tissue, thereby achieving the separation of tumor sampling tissue.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sampling device for conveniently separating tumors, comprising a needle tube (1), the top of which is fixedly connected to a tube (2), characterized in that: One end of the top of the tube (2) is fixedly connected to an electric telescopic rod (3), the output end of the electric telescopic rod (3) is fixedly connected to a movable plate (4), the middle part of the movable plate (4) is rotatably connected to a movable tube (5) penetrating the movable plate (4), the movable tube (5) penetrates the tube (2) and extends to the inner side of the needle tube (1), the movable tube (5) is movably connected to the tube (2), the bottom end of the movable tube (5) is provided with a sampling mechanism (6), the sampling mechanism (6) comprises a pressure rod (61) penetrating the movable tube (5), the pressure rod (61) is slidably connected to the movable tube (5), and the outer side of the bottom of the movable tube (5) is rotatably connected to the movable tube (5). There are a plurality of cutting knives (62), which are distributed at equal angles around the movable tube (5); the bottom end of the pressure rod (61) is rotatably connected to a plurality of connecting rods (63) corresponding to the cutting knives (62) one by one; the ends of the connecting rods (63) away from the pressure rod (61) are rotatably connected to the middle of the corresponding cutting knives (62); the top end of the pressure rod (61) is fixedly connected to a pressing block (64); the middle part of the movable tube (5) is fixedly connected to a piston (8); the piston (8) is slidably connected to the inner wall of the tube (2); and the other end of the top of the tube (2) is provided with a driving member (7) for driving the movable tube (5) to rotate.

2. A sampling device for conveniently separating tumors according to claim 1, characterized in that: The sampling mechanism (6) further comprises a clamping block (65), wherein the clamping block (65) is fixedly connected to the pressure rod (61), and a limiting member (66) for limiting and fixing the clamping block (65) is provided at the top of the movable tube (5).

3. A sampling device for conveniently separating tumors according to claim 2, characterized in that: The limiting member (66) comprises a holder (661), the holder (661) is fixedly connected to the top of the movable tube (5), the block (65) is slidably matched with the holder (661), one side of the holder (661) is slidably connected with a slide bar (662) penetrating the side wall of the holder (661), one end of the slide bar (662) is fixedly connected to a limiting block (663), the limiting block (663) abuts against the top wall of the block (65), and the other end of the slide bar (662) is fixedly connected to a pull block (664).

4. A sampling device for conveniently separating tumors according to claim 3, characterized in that: The side wall of the holder (661) is provided with a clearance groove (665) which is slidably matched with the limit block (663); the slide rod (662) is sleeved with a spring (666); one end of the spring (666) is in contact with the limit block (663), and the other end of the spring (666) is in contact with the inner wall of the clearance groove (665).

5. A sampling device for conveniently separating tumors according to claim 1, characterized in that: The outer diameter of the movable tube (5) is smaller than the inner diameter of the needle tube (1), and the diameter of the pressure rod (61) is smaller than the inner diameter of the movable tube (5).

6. A sampling device for conveniently separating tumors according to claim 1, characterized in that: The driving member (7) comprises a micro motor (71), the micro motor (71) is fixedly mounted on the top of the tube (2), the output shaft of the micro motor (71) is fixedly connected to a telescopic shaft (72), the telescopic shaft (72) is rotatably connected to the movable plate (4), the top end of the telescopic shaft (72) is fixedly connected to a first gear (73), the top end of the movable tube (5) is fixedly connected to a second gear (74), and the second gear (74) is meshed with the first gear (73).

7. A sampling device for conveniently separating tumors according to claim 6, characterized in that: The telescopic shaft (72) comprises a sleeve shaft (721), the bottom end of the sleeve shaft (721) is fixedly connected to the output shaft of the micro motor (71), the top end of the sleeve shaft (721) is slidably connected to an insertion shaft (722), the insertion shaft (722) is rotatably connected to the movable plate (4), the outer side of the insertion shaft (722) is fixedly connected to a limit bar (723), and the limit bar (723) is slidably connected to the inner wall of the sleeve shaft (721).

8. A sampling device for conveniently separating tumors according to claim 7, characterized in that: The inner wall of the sleeve shaft (721) is provided with a limiting groove (724) matching the limiting strip (723), and the limiting strip (723) can slide in the vertical direction along the limiting groove (724).

9. A sampling device for conveniently separating tumors according to claim 1, characterized in that: A disinfection component (9) is arranged on the outside of the tube (2), and the disinfection component (9) comprises a liquid inlet pipe (91), the liquid inlet pipe (91) is fixedly connected to the outside of the tube (2), a control valve (92) is fixedly connected to the liquid inlet pipe (91), an alcohol conduit (93) is fixedly connected to the inlet end of the control valve (92), and an alcohol supply device is externally connected to the inlet end of the alcohol conduit (93).

10. A method for separating tumors conveniently, implemented by the sampling device for separating tumors conveniently according to any one of claims 1 to 9, characterized in that: The steps include: S1: First, the needle tube (1) is inserted into the tumor for puncture, and then the electric telescopic rod (3) is controlled to drive the movable plate (4) to move downward, so that the movable tube (5) moves downward, thereby causing the cutting knife (62) to move downward and completely slide out from the bottom of the needle tube (1); S2: By applying a force downward to the pressing block (64), the pressing rod (61) moves downward, so that all the connecting rods (63) apply a thrust to the corresponding cutting knives (62), so that all the cutting knives (62) are spread outward at an inclined angle, and then the electric telescopic rod (3) is controlled to drive the movable plate (4) to continue to move downward, so that the movable tube (5) drives the inclined cutting knives (62) to be inserted into the tumor; S3: The driving member (7) drives the movable tube (5) to rotate, so that all the cutting knives (62) rotate in a circumferential direction, so that the cutting knives (62) rotate in the tumor and cut part of the tissue, and then the electric telescopic rod (3) is controlled to drive the movable plate (4) to move upward, so that the cutting knives (62) are stored in the needle tube (1), and at the same time, the cutting knives (62) continue to rotate, so that all the cutting knives (62) move toward the center and crush the cut tumor tissue; S4: When the movable tube (5) moves upward, the piston (8) will slide upward, so that the pressure at the bottom of the tube (2) decreases, causing the needle tube (1) to suck in a large amount of crushed tumor tissue, thereby achieving the separation of tumor sampling tissue.

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