A thyroid tumor sampling device

Abstract

The present invention discloses a thyroid tumor sampling device, which relates to the technical field of medical devices, including a syringe, a needle is provided at the front end of the syringe, a support frame, the support frame is arranged at the front end of the syringe, and the two sides of the front end of the support frame are respectively connected to a limit frame, a positioning mechanism, and the positioning mechanism includes a movable block and a limit tube, the movable block is arranged at the front end of the support frame, the limit tube is inserted in the middle of the movable block, and the needle is located inside the limit tube. Through the cooperation of the positioning mechanism and the clamping assembly, the present invention is closer to the position of the thyroid gland at the neck, ensuring that the needle is accurately positioned for sampling and stably clamps the patient's neck, improving the detection quality, and the retractable disinfection nozzle can disinfect the patient's skin surface in real time, and at the same time can disinfect the front of the needle to prevent the patient's wound from being infected by bacteria. The movable ring limits the syringe and the limit tube limits the needle, which is convenient for sampling, prevents the needle from tilting, and avoids affecting normal sampling.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a thyroid tumor sampling device. Background Art

[0002] The thyroid gland is the largest endocrine gland in the human body. It is located under the thyroid cartilage and close to the front of the third and fourth cartilage rings of the trachea. It consists of two lobes and an isthmus. Thyroid tumors are common tumors in the head and neck. Symptoms include a mass in the middle of the anterior neck. With swallowing activities, some patients also have symptoms of hoarseness, difficulty swallowing and difficulty breathing. In order to detect the benign or malignant nature of the tumor, it is necessary to take samples from the inside of the thyroid gland for analysis and take corresponding treatment measures for the patient. In the Chinese patent application number 202122391914.3, "a thyroid tumor sampling device is disclosed, including a syringe, a rectangular slider is symmetrically fixedly connected to the outer surface of the syringe, a clamping device is slidably connected to the outer surface of the rectangular slider, a piston is slidably connected to the inner cavity of one end of the syringe, a piston rod is fixedly connected to one end of the piston, a collecting device is installed at one end of the outer surface of the syringe, a one-way valve device is installed in the inner cavity of the collecting device, a backflow prevention device is installed at one end of the inner cavity of the syringe, and a needle is plugged into the outer surface of one end of the syringe."

[0003] The above-mentioned comparative document solves the problem that traditional thyroid tumor sampling devices are inconvenient to take samples multiple times during sampling, but there is still the problem of clamping stability. When accurately locating the thyroid gland, the position is determined only by clamping the neck. The distance between the needle and the thyroid gland is far, and it is difficult to control the sampling of the needle in the correct position. In addition, the needle needs to be disinfected before piercing the skin, and the patient's skin also needs to be disinfected. If the disinfection is not in place and not timely, the wound may be infected, affecting the patient's recovery. Summary of the invention

[0004] The object of the present invention is to provide a thyroid tumor sampling device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: a thyroid tumor sampling device, comprising a syringe, wherein a needle is provided at the front end of the syringe;

[0006] A support frame, the support frame is arranged at the front end of the syringe, and both sides of the front end of the support frame are respectively connected to a limited position frame;

[0007] A positioning mechanism, the positioning mechanism comprising a movable block and a limiting tube, the movable block is arranged at the front end of the support frame, the limiting tube penetrates the middle of the movable block, and the needle is located inside the limiting tube;

[0008] A disinfection nozzle, which is arranged between the needle and the limiting tube;

[0009] A clamping assembly, the clamping assembly comprising two clamping rods and two neck guards, the two clamping rods are respectively arranged on both sides of the front end of the limit frame through a fixing mechanism, and the two neck guards are respectively installed on the side walls between the two clamping rods through bolts;

[0010] The adjusting mechanism comprises a supporting frame, a fixing handle and an adjusting handle. The supporting frame is arranged at the bottom end of the supporting frame, the fixing handle is installed at the bottom end of the supporting frame by bolts, and the adjusting handle is installed at both ends of the supporting frame by pins.

[0011] Preferably, the positioning mechanism also includes a movable ring, a fixed rod and two bent rods, a limited through hole is provided in the middle part of the front end of the support frame, the movable ring is mounted on the front side wall of the syringe by snap-fitting, the fixed rod is mounted on the front end of the movable ring by bolts, the fixed rod is in a "cross" shape, the limiting tube passes through the limiting through hole and is fixedly connected to the middle part of the front wall of the fixed rod, a circular through hole opposite to the limiting tube and with the same tube diameter is provided in the middle of the fixed rod, the top and bottom ends of the outer wall of the movable ring are respectively fixedly connected with support plates, the two bent rods are respectively mounted on the top and bottom ends of the movable block through rotating shafts, the support frames are located on both sides of the syringe and are respectively arranged as circular ring structures, sliding grooves are respectively provided on the inner sides of both ends of the support frame, and the two ends of the fixed rod are respectively slidably connected to the sliding grooves.

[0012] Preferably, the adjustment mechanism also includes a disinfectant tube, a spring, a first compression spring, a first pull rod and an axis roller, support plates are respectively installed on both sides of the bottom end of the support frame by bolts, a ring frame is fixedly connected between the two support plates, and a fixing plate is fixedly connected at the upper and lower ends of the ring frame between the two support plates, the support frame is installed on the fixing plate by bolts, the disinfectant tube passes through the ring frame and is located at the front end of the support plate, the disinfectant tube is connected to the ring frame by bolts, a first piston is slidably installed in the inner cavity of the disinfectant tube, and the first pull rod is fixedly connected to the rear end of the first piston, The rear end of the first pull rod is an arc-shaped structure, the spring sheet is movably sleeved and installed around the outside of the first pull rod and the spring sheet is located at the rear end of the disinfectant tube, the first compression spring is arranged between the spring sheet and the ring frame, one end of the first compression spring is fixedly connected to the spring sheet, and the other end of the first compression spring is fitted with the wall of the ring frame, the shaft roller is installed at the top of the adjusting handle by bolts, the shaft roller is close to the spring sheet and away from one end of the first compression spring, a second piston is slidably installed in the inner cavity of the syringe, a second pull rod connected to the second piston is provided at the rear end of the syringe, and an injection port is provided at the top of the disinfectant tube.

[0013] Preferably, a circular hole is provided at the bottom end of the limiting tube between the support frame and the movable block, a hose is connected between the disinfectant tube and the disinfection nozzle, one end of the hose passes through the circular hole and is located between the limiting tube and the needle, and the other end of the hose is located at the bottom end of the limiting tube, a telescopic structure is adopted at the connection between the disinfection nozzle and the front end of the limiting tube, and the several spray holes of the disinfection nozzle are distributed in a circular array.

[0014] Preferably, the two limit frames are respectively slidably connected with the first movable arm and the second movable arm, and the clamping assembly also includes two straight rods, two mounting seats, two sleeves and two connecting seats, the two straight rods are respectively mounted on the rear ends of the two clamping rods by bolts, the two mounting seats are respectively mounted on the front ends of the first movable arm and the second movable arm by bolts, the two mounting seats are respectively provided with slots in the middle, column rollers are respectively fixedly connected inside the slots of the two mounting seats, the two sleeves are respectively sleeved and mounted around the outside of the two column rollers, and the two connecting seats are fixedly connected to the two straight rods by sleeves.

[0015] Preferably, the clamping assembly also includes two limiting rods and two tensioning springs, the two connecting seats are respectively provided with connecting grooves in the middle part, the two limiting rods are respectively installed at the front end of the two mounting seats by bolts, the two tensioning springs are respectively arranged between the two mounting seats and the two limiting rods, one end of the two tensioning springs are respectively connected to the connecting rods inside the two connecting grooves, and the other end of the two tensioning springs are respectively connected to the two limiting rods.

[0016] Preferably, the end of the curved rod at the top away from the movable block is installed at the top end of the first movable arm through a rotating shaft, and the end of the curved rod at the bottom away from the movable block is installed at the bottom end of the second movable arm through a rotating shaft. A connecting port for accommodating a limiting tube is opened in the middle of the movable block, and the limiting tube passes through the connecting port and is bonded to the movable block.

[0017] Preferably, the fixing mechanism is provided with two groups, and the first movable arm and the second movable arm are respectively provided with a T-shaped cavity located at one end of the limit frame close to the needle head, and the two groups of the fixing mechanism include two clamping rods, a mounting block and two movable rods, the mounting block is arranged at the bottom end of the cavity, and rectangular holes are opened at both ends of the mounting block, the two clamping rods are respectively slidably clamped in the rectangular holes, and the two movable rods are respectively installed at the bottom ends of the two clamping rods by bolts, and the two movable rods respectively adopt an L-shaped structure, and the two movable rods respectively pass through the openings on both sides of the first movable arm and are located on the outside of the first movable arm.

[0018] Preferably, the fixing mechanism also includes a second compression spring, a plurality of convex tooth blocks and a pushing rod, the second compression spring is arranged between two clamping rods, the plurality of convex tooth blocks are divided into two groups, the two groups of convex tooth blocks are respectively fixedly connected on both sides of the cavity, the plurality of convex tooth blocks are in a triangular block mechanism, the plurality of convex tooth blocks are inclined back to the needle head, the two clamping rods are respectively clamped with the two groups of convex tooth blocks, the top of the first movable arm and the second movable arm are respectively provided with a pushing groove of a rectangular structure, the pushing rod is fixedly connected to the top of the mounting block, and the pushing rod passes through the pushing groove and is located at the top of the first movable arm.

[0019] Preferably, the fixing mechanism also includes a first moving block and two second moving blocks, the first moving block is installed on the top end of the push rod by bolts, and the two second moving blocks are respectively installed on the outer ends of the two movable rods by bolts, the top of the first moving block and the two second moving blocks are respectively provided with concave and convex patterns away from the side walls of the first movable arm, and one end of the pushing groove is located inside the limit frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention can be closer to the position of the thyroid gland at the neck through the cooperation of the positioning mechanism and the clamping assembly, ensuring the accurate positioning of the needle for sampling and the stable clamping of the patient's neck, improving the detection quality, and disinfecting the patient's skin surface in real time through the retractable disinfection nozzle, while disinfecting the needle tip to prevent the patient's wound from bacterial infection. The movable ring limits the position of the syringe and the limiting tube limits the position of the needle, which is convenient for sampling, prevents the needle from tilting, and avoids affecting normal sampling;

[0022] 2. The present invention can control the spraying of a small amount of disinfectant through an adjusting mechanism to avoid excessive spraying and waste. Symmetrical fixing mechanisms are respectively arranged on the first movable arm and the second movable arm to facilitate stable fixation when clamping widths for different groups of people. The syringe and the movable ring are provided with an assembly structure to facilitate replacement of disposable syringes. The injection port at the top of the disinfectant tube can be used to continuously inject disinfectant. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Provides an overall structural diagram for an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the overall backend structure provided by an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the front structure provided by an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of a left-side structure provided by an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of the structure of a needle and a disinfection nozzle provided in an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the structure of an adjustment mechanism provided by an embodiment of the present invention;

[0029] Figure 7 A schematic structural diagram of a fixing mechanism provided in an embodiment of the present invention.

[0030] In the figure: 1, syringe; 2, needle; 3, support frame; 4, limit frame; 5, positioning mechanism; 501, movable block; 502, limit tube; 503, movable ring; 504, fixed rod; 505, curved rod; 6, disinfection nozzle; 7, clamping assembly; 701, clamping stick; 702, neck cover; 703, straight rod; 704, mounting seat; 705, shaft sleeve; 706, connecting seat; 707, limit rod; 708, tension spring; 8, fixing mechanism; 801, clamping rod; 802, mounting block; 803, movable ring Moving rod; 804, second compression spring; 805, convex tooth block; 806, pushing rod; 807, first moving block; 808, second moving block; 9, adjusting mechanism; 901, supporting frame; 902, fixing handle; 903, adjusting handle; 904, disinfectant tube; 905, spring piece; 906, first compression spring; 907, first pull rod; 908, shaft roller; 10, supporting plate; 11, second pull rod; 12, hose; 13, first movable arm; 14, second movable arm; 15, cavity; 16, pushing groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in 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.

[0032] See also Figure 1-7 , the present invention provides a technical solution: a thyroid tumor sampling device, comprising a syringe 1, a needle 2 is provided at the front end of the syringe 1;

[0033] A support frame 3 is arranged at the front end of the syringe 1, and both sides of the front end of the support frame 3 are respectively connected to a limited position frame 4;

[0034] Positioning mechanism 5, the positioning mechanism 5 includes a movable block 501 and a limiting tube 502, the movable block 501 is arranged at the front end of the support frame 3, the limiting tube 502 is inserted into the middle of the movable block 501, and the needle 2 is located inside the limiting tube 502;

[0035] A disinfection nozzle 6, which is arranged between the needle 2 and the limiting tube 502;

[0036] The clamping assembly 7 includes two clamping rods 701 and two neck guards 702. The two clamping rods 701 are respectively arranged on both sides of the front end of the limit frame 4 through the fixing mechanism 8, and the two neck guards 702 are respectively installed on the side walls between the two clamping rods 701 by bolts;

[0037] The adjusting mechanism 9 includes a supporting frame 901, a fixing handle 902 and an adjusting handle 903. The supporting frame 901 is arranged at the bottom end of the supporting frame 3, the fixing handle 902 is installed at the bottom end of the supporting frame 901 by bolts, and the adjusting handle 903 is installed at both ends of the supporting frame 901 by pins.

[0038] The positioning mechanism 5 also includes a movable ring 503, a fixed rod 504 and two bent rods 505. A limited through hole is provided in the middle of the front end of the support frame 3. The movable ring 503 is mounted on the front side wall of the syringe 1 by snap connection. The fixed rod 504 is mounted on the front end of the movable ring 503 by bolts. The fixed rod 504 is in a "cross" structure. The limiting tube 502 passes through the limiting through hole and is fixedly connected to the middle of the front wall of the fixed rod 504. A circular through hole opposite to the limiting tube 502 and having the same diameter as the fixing rod 504 is provided in the middle of the fixing rod 504. The top and bottom ends of the outer wall of the movable ring 503 are respectively fixedly connected with a supporting plate. The two bent rods 505 are respectively mounted on the top and bottom ends of the movable block 501 through a rotating shaft. The support frame 3 is located on both sides of the syringe 1 and is respectively provided with a circular ring structure, which can better hold the support frame 3 and reduce the possibility of the device falling out of the hand. Slide grooves are respectively provided on the inner sides of the two ends of the support frame 3. The two ends of the fixed rod 504 are respectively slidably connected to the slide grooves. The movable ring 503 is restricted by the slide grooves to ensure horizontal movement.

[0039] The adjustment mechanism 9 also includes a disinfectant tube 904, a spring 905, a first compression spring 906, a first pull rod 907 and an axis roller 908. Support plates 10 are respectively installed on both sides of the bottom end of the support frame 3 by bolts. A ring frame is fixedly connected between the two support plates 10. A fixed plate is fixedly connected at the upper and lower ends of the ring frame between the two support plates 10. The support frame 901 is installed on the fixed plate by bolts. The disinfectant tube 904 passes through the ring frame and is located at the front end of the support plate 10. The disinfectant tube 904 is connected to the ring frame by bolts. A first piston is slidably installed in the inner cavity of the disinfectant tube 904. The first pull rod 907 is fixedly connected to the rear end of the first piston. The rear end of the first pull rod 907 is an arc-shaped structure for easy pulling. The first piston, the spring piece 905 is movably mounted around the outside of the first pull rod 907 and the spring piece 905 is located at the rear end of the disinfectant tube 904, the first compression spring 906 is arranged between the spring piece 905 and the ring frame, one end of the first compression spring 906 is fixedly connected to the spring piece 905, and the other end of the first compression spring 906 is in contact with the wall of the ring frame, the shaft roller 908 is installed at the top of the adjustment handle 903 by bolts, the shaft roller 908 is close to the spring piece 905 and away from one end of the first compression spring 906, the second piston is slidably installed in the inner cavity of the syringe 1, the rear end of the syringe 1 is provided with a second pull rod 11 connected with the second piston, and the top of the disinfectant tube 904 is provided with an injection port, which is convenient for injecting solution into the disinfectant tube 904;

[0040] The bottom end of the limiting tube 502 is located between the support frame 3 and the movable block 501 and has a circular hole. A hose 12 is connected between the disinfectant tube 904 and the disinfectant nozzle 6. One end of the hose 12 passes through the circular hole and is located between the limiting tube 502 and the needle 2. The other end of the hose 12 is located at the bottom end of the limiting tube 502. The connection between the disinfectant nozzle 6 and the front end of the limiting tube 502 adopts a telescopic structure to achieve the dual-purpose functions of skin disinfection and needle tip disinfection. The multiple spray holes of the disinfectant nozzle 6 are distributed in a circular array, so that the disinfectant is evenly sprayed on the skin of the front part of the patient's neck.

[0041] The first movable arm 13 and the second movable arm 14 are slidably connected inside the two limit frames 4, and the clamping assembly 7 also includes two straight rods 703, two mounting seats 704, two shaft sleeves 705 and two connecting seats 706. The two straight rods 703 are respectively installed at the rear ends of the two clamping rods 701 by bolts, and the two mounting seats 704 are respectively installed at the front ends of the first movable arm 13 and the second movable arm 14 by bolts. Notches are respectively opened in the middle of the two mounting seats 704, and column rollers are respectively fixedly connected inside the notches of the two mounting seats 704. The two shaft sleeves 705 are respectively sleeved and installed around the outside of the two column rollers. The two connecting seats 706 are fixedly connected to the two straight rods 703 by the shaft sleeves 705, and the shaft sleeves 705 are movably connected to the column rollers;

[0042] The clamping assembly 7 also includes two limiting rods 707 and two tensioning springs 708. The two connecting seats 706 are respectively provided with connecting grooves in the middle thereof. The two limiting rods 707 are respectively installed at the front ends of the two mounting seats 704 by bolts. The two tensioning springs 708 are respectively arranged between the two mounting seats 704 and the two limiting rods 707. One end of the two tensioning springs 708 is respectively connected to the connecting rods inside the two connecting grooves, and the other end of the two tensioning springs 708 is respectively connected to the two limiting rods 707. Under the action of the tensioning springs 708, the comfort of the neck guard 702 on the neck is improved. In addition, the limiting rod can make the straight rod 703 float slightly to avoid affecting the normal clamping work.

[0043] The end of the top curved rod 505 away from the movable block 501 is installed at the top of the first movable arm 13 through a rotating shaft, and the end of the bottom curved rod 505 away from the movable block 501 is installed at the bottom of the second movable arm 14 through a rotating shaft. A connecting port for accommodating a limiting tube 502 is opened in the middle of the movable block 501. The limiting tube 502 passes through the connecting port and is bonded to the movable block 501. The limiting tube 502 and the movable block 501 are movable in unison. When the limiting tube 502 moves, the curved rod 505 is driven to rotate. The curved rod 505 further pulls and drives the first movable arm 13 and the second movable arm 14 to move toward each other.

[0044] The fixing mechanism 8 is provided with two groups, and the first movable arm 13 and the second movable arm 14 are respectively provided with a T-shaped cavity 15 located at one end of the limit frame 4 close to the needle head 2. The two groups of fixing mechanisms 8 include two clamping rods 801, a mounting block 802 and two movable rods 803. The mounting block 802 is arranged at the bottom end of the cavity 15. Rectangular holes are provided at both ends of the mounting block 802. The two clamping rods 801 are respectively slidably clamped in the rectangular holes. The two movable rods 803 are respectively installed at the bottom ends of the two clamping rods 801 by bolts. The two movable rods 803 respectively adopt an L-shaped structure. The two movable rods 803 respectively pass through the openings on both sides of the first movable arm 13 and are located on the outside of the first movable arm 13;

[0045] The fixing mechanism 8 also includes a second compression spring 804, a plurality of convex tooth blocks 805 and a push rod 806. The second compression spring 804 is arranged between the two clamping rods 801. The plurality of convex tooth blocks 805 are divided into two groups. The two groups of convex tooth blocks 805 are respectively fixedly connected to the two sides of the cavity 15. The plurality of convex tooth blocks 805 are triangular block mechanisms. The plurality of convex tooth blocks 805 are tilted away from the needle head 2. The two clamping rods 801 are respectively clamped with the two groups of convex tooth blocks 805. The tops of the first movable arm 13 and the second movable arm 14 are respectively provided with push grooves 16 of rectangular structure. The push rod 806 is fixedly connected to the top of the mounting block 802. The push rod 806 passes through the push groove 16 and is located at the top of the first movable arm 13. The convex tooth blocks 805 with inclined structures are conveniently fixed, so that the push rod 806 can move horizontally to realize the movement of the mounting block 802.

[0046] The fixing mechanism 8 also includes a first moving block 807 and two second moving blocks 808. The first moving block 807 is installed on the top of the push rod 806 by bolts, and the two second moving blocks 808 are respectively installed on the outer ends of the two movable rods 803 by bolts. The top of the first moving block 807 and the two second moving blocks 808 are away from the side walls of the first movable arm 13 and are respectively provided with concave and convex patterns. One end of the pushing groove 16 is located inside the limit frame 4 to prevent the first moving block 807 from reaching the end of the pushing groove 16 without contacting the limit frame 4, thereby avoiding the inability to fix the clamping component 7.

[0047] Working principle: When the present invention is used, the two neck guards 702 are aligned with the patient's neck, and the medical staff holds the support frame 3 with one hand and pushes the support plate on the movable ring 503 toward the support frame 3 with the other hand. Since the movable ring 503 is fixedly connected to the limiting tube 502 through the fixing rod 504, when the movable ring 503 is pushed forward, the limiting tube 502 also moves along with it. Since the movable block 501 is fixedly connected to the limiting tube 502, the movable block 501 also moves forward, and the two curved rods 505 are rotatably connected to the movable block 501, and the two curved rods 505 are rotatably connected to the first movable arm 13 and the second movable arm 14 respectively. Driven by the movable block 501 and the curved rod 505, the first movable arm 13 and the second movable arm 14 approach each other, the clamping assembly 7 clamps the patient's neck, and the limiting tube 502 approaches the position facing the patient's thyroid gland. Due to the inclined structural design of the convex tooth block 805 in the fixing mechanism 8, which is facing away from the needle, the first moving block 807 can be directly pushed toward the limit frame 4 but cannot be directly pushed in the opposite direction. It is necessary to press the two second moving blocks 808 so that the second moving blocks 808 can mutually squeeze the second compression spring 804 while pushing the first moving block 807 in the opposite direction. After determining the final clamping position, the first moving block 807 is moved toward the limit frame 4 until it contacts the limit frame 4 to be fixed. The shaft sleeve 705 in the clamping assembly 7 can be slightly rotated, and the connecting seat 706 will move with the shaft sleeve 705. The two ends of the tensioning spring 708 are respectively fixed on the limiting rod 707 and the connecting seat 706. When the neck guard 702 clamps the neck, the tensioning spring 708 will stretch under the pull of the connecting seat 706 to produce an elastic effect, thereby improving the tightness and comfort of the clamping rod 701 on the patient's neck.

[0048] Afterwards, disinfectant is filled in the disinfectant tube 904, the fixed handle 902 is held by hand, and then the adjusting handle 903 is pressed. Since the adjusting handle 903 is rotatably connected to the support frame 901 through the pin shaft and the adjusting handle 903 is fixedly connected to the shaft roller 908, the shaft roller 908 follows the pressing of the adjusting handle 903 to push the spring piece 905, and the spring piece 905 and the first pull rod 907 generate friction. The first pull rod 907 pushes forward to push the disinfectant from the disinfectant tube 904 through the hose 12 into the disinfection nozzle 6. In addition, the disinfection nozzle 6 can be extended and retracted forward and backward to spray the patient's front neck at close range or to further disinfect the front of the needle 2. When adding liquid to the injection port at the top of the disinfectant tube 904, pull the first pull rod 907 to make the first piston located at the rear end of the injection port, and inject while observing. After the preparation work is completed, then pass the disposable needle 2 through the limiting tube 502, and the syringe 1 is in contact with the movable ring 503. While holding the support frame 3 with your hand, pull the second pull rod 11 to extract the thyroid tumor liquid sample.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thyroid tumor sampling device, comprising a syringe (1), wherein a needle (2) is provided at the front end of the syringe (1), characterized in that: A support frame (3), the support frame (3) being arranged at the front end of the syringe (1), and both sides of the front end of the support frame (3) being respectively connected to limit frames (4); A positioning mechanism (5), the positioning mechanism (5) comprising a movable block (501) and a position limiting tube (502), the movable block (501) being arranged at the front end of the support frame (3), the position limiting tube (502) being inserted through the middle of the movable block (501), and the needle (2) being located inside the position limiting tube (502); A disinfection nozzle (6), wherein the disinfection nozzle (6) is arranged between the needle (2) and the limiting tube (502); A clamping assembly (7), the clamping assembly (7) comprising two clamping rods (701) and two neck protection sleeves (702), the two clamping rods (701) being respectively arranged on both sides of the front end of the limiting frame (4) through a fixing mechanism (8), and the two neck protection sleeves (702) being respectively installed on the side walls between the two clamping rods (701); An adjustment mechanism (9), the adjustment mechanism (9) comprising a support frame (901), a fixed handle (902) and an adjustment handle (903), the support frame (901) being arranged at the bottom end of the support frame (3), the fixed handle (902) being mounted at the bottom end of the support frame (901), and the adjustment handle (903) being mounted at both ends of the support frame (901) via a pin shaft; The positioning mechanism (5) further comprises a movable ring (503), a fixed rod (504) and two curved rods (505); a limiting through hole is provided in the middle of the front end of the support frame (3); the movable ring (503) is mounted on the front side wall of the syringe (1) by means of a snap connection; the fixed rod (504) is mounted on the front end of the movable ring (503) by means of a bolt; the fixed rod (504) is in a "cross"-shaped structure; the limiting tube (502) passes through the limiting through hole and is fixedly connected to the middle of the front wall of the fixed rod (504); A circular through hole opposite to the limiting tube (502) and having the same diameter as the limiting tube (502) is provided in the middle of the fixed rod (504); the top and bottom ends of the outer wall of the movable ring (503) are respectively fixedly connected with supporting plates; the two curved rods (505) are respectively mounted on the top and bottom ends of the movable block (501) through rotating shafts; the support frame (3) is located on both sides of the syringe (1) and is respectively provided with a circular ring structure; the inner sides of the two ends of the support frame (3) are respectively provided with sliding grooves; the two ends of the fixed rod (504) are respectively slidably connected with the sliding grooves; A first movable arm (13) and a second movable arm (14) are slidably connected inside the two limit frames (4) respectively; The end of the curved rod (505) at the top end away from the movable block (501) is mounted on the top end of the first movable arm (13) via a rotating shaft, and the end of the curved rod (505) at the bottom end away from the movable block (501) is mounted on the bottom end of the second movable arm (14) via a rotating shaft. A connecting port for accommodating a limiting tube (502) is provided in the middle of the movable block (501), and the limiting tube (502) passes through the connecting port and is bonded to the movable block (501).

2. A thyroid tumor sampling device according to claim 1, characterized in that: The regulating mechanism (9) further comprises a disinfectant tube (904), a spring sheet (905), a first compression spring (906), a first pull rod (907) and an axis roller (908); support plates (10) are respectively installed on both sides of the bottom end of the support frame (3) by bolts; a ring frame is fixedly connected between the two support plates (10); a fixing plate is fixedly connected at the upper and lower ends of the ring frame between the two support plates (10); the support frame (901) is installed on the fixing plate by bolts; the disinfectant tube (904) passes through the ring frame and is located at the front end of the support plate (10); the disinfectant tube (904) is connected to the ring frame by bolts; a first piston is slidably installed in the inner cavity of the disinfectant tube (904); the first pull rod (907) is fixedly connected to the rear end of the first piston; the first pull rod (907) ) has an arc-shaped rear end, the spring sheet (905) is movably mounted around the outside of the first pull rod (907) and the spring sheet (905) is located at the rear end of the disinfectant tube (904), the first compression spring (906) is arranged between the spring sheet (905) and the ring frame, one end of the first compression spring (906) is fixedly connected to the spring sheet (905), and the other end of the first compression spring (906) is in contact with the wall of the ring frame, the shaft roller (908) is mounted on the top of the adjustment handle (903) by bolts, the shaft roller (908) is close to the spring sheet (905) and away from one end of the first compression spring (906), a second piston is slidably mounted in the inner cavity of the syringe (1), a second pull rod (11) connected to the second piston is provided at the rear end of the syringe (1), and an injection port is provided at the top of the disinfectant tube (904).

3. A thyroid tumor sampling device according to claim 2, characterized in that: The bottom end of the limiting tube (502) is provided with a circular hole between the support frame (3) and the movable block (501); a hose (12) is connected between the disinfectant tube (904) and the disinfectant nozzle (6); one end of the hose (12) passes through the circular hole and is located between the limiting tube (502) and the needle (2); the other end of the hose (12) is located at the bottom end of the limiting tube (502); a telescopic structure is adopted at the connection between the disinfectant nozzle (6) and the front end of the limiting tube (502); and a plurality of spray holes of the disinfectant nozzle (6) are distributed in a ring array.

4. A thyroid tumor sampling device according to claim 1, characterized in that: The clamping assembly (7) further comprises two straight rods (703), two mounting seats (704), two shaft sleeves (705) and two connecting seats (706); the two straight rods (703) are respectively mounted on the rear ends of the two clamping rods (701) by means of bolts; the two mounting seats (704) are respectively mounted on the front ends of the first movable arm (13) and the second movable arm (14) by means of bolts; slots are respectively provided in the middle of the two mounting seats (704); column rollers are respectively fixedly connected inside the slots of the two mounting seats (704); the two shaft sleeves (705) are respectively sleeved and mounted around the outside of the two column rollers; and the two connecting seats (706) are respectively fixedly connected to the two straight rods (703) by means of the shaft sleeves (705).

5. A thyroid tumor sampling device according to claim 4, characterized in that: The clamping assembly (7) further comprises two limiting rods (707) and two tensioning springs (708); the two connecting seats (706) are respectively provided with connecting grooves in the middle thereof; the two limiting rods (707) are respectively mounted on the front ends of the two mounting seats (704) by bolts; the two tensioning springs (708) are respectively arranged between the two mounting seats (704) and the two limiting rods (707); one end of the two tensioning springs (708) is respectively connected to the connecting rods inside the two connecting grooves; and the other end of the two tensioning springs (708) is respectively connected to the two limiting rods (707).

6. A thyroid tumor sampling device according to claim 4, characterized in that: The fixing mechanism (8) is provided with two groups. A T-shaped cavity (15) is respectively provided inside the first movable arm (13) and the second movable arm (14) at one end of the limiting frame (4) close to the needle head (2). The two groups of the fixing mechanism (8) include two clamping rods (801), a mounting block (802) and two movable rods (803). The mounting block (802) is arranged at the bottom end of the cavity (15). Rectangular holes are provided at both ends of the mounting block (802). The two clamping rods (801) are respectively slidably clamped in the rectangular holes. The two movable rods (803) are respectively installed at the bottom ends of the two clamping rods (801) by bolts. The two movable rods (803) respectively adopt an L-shaped structure. The two movable rods (803) respectively pass through the openings on both sides of the first movable arm (13) and are located outside the first movable arm (13).

7. A thyroid tumor sampling device according to claim 6, characterized in that: The fixing mechanism (8) further comprises a second compression spring (804), a plurality of convex tooth blocks (805) and a push rod (806); the second compression spring (804) is arranged between two opposing clamping rods (801); the plurality of convex tooth blocks (805) are divided into two groups; the two groups of convex tooth blocks (805) are respectively fixedly connected to two sides of the cavity (15); the plurality of convex tooth blocks (805) are in a triangular block structure; the plurality of convex tooth blocks (805) are inclined away from the needle head (2); the two clamping rods (801) are respectively clamped with the two groups of convex tooth blocks (805); the top ends of the first movable arm (13) and the second movable arm (14) are respectively provided with push grooves (16) of rectangular structure; the push rod (806) is fixedly connected to the top end of the mounting block (802); the push rod (806) passes through the push groove (16) and is located at the top end of the first movable arm (13).

8. A thyroid tumor sampling device according to claim 7, characterized in that: The fixing mechanism (8) further comprises a first moving block (807) and two second moving blocks (808), wherein the first moving block (807) is mounted on the top of the push rod (806) by means of bolts, and the two second moving blocks (808) are respectively mounted on the outer ends of the two movable rods (803) by means of bolts, and the top of the first moving block (807) and the side walls of the two second moving blocks (808) away from the first movable arm (13) are respectively provided with concave and convex patterns, and one end of the pushing groove (16) is located inside the limiting frame (4).

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