Clinical sampling device for thyroid treatment and method of operation thereof

Abstract

The present application belongs to the field of clinical sampling technology, and discloses a clinical sampling device for thyroid treatment. The clinical sampling device for thyroid treatment comprises a needle cylinder, the inner cavity of the needle cylinder is movably connected with a push rod body, and the outer surface of the push rod body is sleeved with a first tension spring. The present application also provides a working method of the clinical sampling device for thyroid treatment. The cooperation between the push rod body, the first tension spring, the needle cylinder and the clamping assembly and other structures enables the device to be convenient for one-handed operation of the operator and improve the safety in use. Pressing the button block will cause the button block to extrude the first clamping block and shrink into the inside of the push rod body, so that the operator can collect the thyroid sample in the patient's body with one hand, and the shaking of the operator when pulling the push rod body with the other hand is prevented.

Description

Technical Field

[0001] This invention belongs to the field of clinical sampling technology, specifically a clinical sampling device and its working method for thyroid treatment. Background Technology

[0002] The thyroid gland is a very important gland in vertebrates, belonging to the endocrine system. It is located in the neck of mammals, below the thyroid cartilage and on both sides of the trachea. The human thyroid gland is shaped like a butterfly, resembling a shield, hence its name. The main physiological functions of the thyroid gland are to produce the hormones triiodothyronine, thyroid hormones, and calcitonin. Relying on these three, the thyroid gland controls the rate of energy use, produces proteins, regulates the body's sensitivity to other hormones, and regulates the body's calcium balance. The physiological functions of thyroid hormones are mainly to promote metabolism, increase oxygen consumption in most tissues, increase heat production, and promote growth and development. It is crucial for the development and growth of long bones, the brain, and reproductive organs. In addition, it also strengthens and regulates the effects of other hormones, and increases heart rate, strengthens myocardial contractility, and increases cardiac output.

[0003] For example, invention publication number CN115969428A discloses a thyroid fine-needle aspiration cytology biopsy device, specifically relating to the field of medical device technology. It includes a syringe; a mounting part; a puncture needle; a suction cup; a rubber stopper; a push rod; and an air-evacuation component. This component is used to evacuate air from the suction cup when the push rod slides outward from the syringe, causing the suction cup to adhere to the skin surface under negative pressure. By pushing the push rod outward from the syringe, the air-evacuation component evacuates air from the suction cup, creating a negative pressure state between the suction cup and the patient's skin. This ensures that the puncture needle maintains a firm contact with the skin surface when the sample is removed. Furthermore, when the push rod is released, the air-evacuation component resets, allowing air to re-enter the suction cup. This allows the suction cup to detach from the skin surface without manual operation, facilitating one-handed operation of the syringe for biopsy sampling.

[0004] Since the device is operated with one hand, when the operator pulls the push lever outward, the operator still needs to hold the syringe with one hand. At this time, the operator still needs to use both hands. In this process, the operator may shake, which will cause the syringe to shake and thus cause harm to the patient. Therefore, a clinical sampling device for thyroid treatment and its working method are proposed to solve the problems mentioned in the background art. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a clinical sampling device for thyroid treatment and its operating method, which solves the problem that the syringe shakes when the push rod is pulled outward in existing devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a clinical sampling device for thyroid treatment, comprising a syringe, wherein a push rod body is movably connected to the inner cavity of the syringe, a first tension spring is sleeved on the outer surface of the push rod body, and the two ends of the first tension spring are respectively fixedly connected to the syringe and the push rod body, a snap-fit ​​assembly and a sterile cotton removal assembly are movably connected to the inner cavity of the push rod body, and a protective assembly is fixedly connected to the inner cavity on one side of the middle part of the syringe;

[0007] The latching assembly includes a first latching block and a second latching block. Both the first and second latching blocks are movably connected to the inner cavities on both sides of the middle part of the push rod body. The ends of the two blocks that are close to each other are fixedly connected to a first spring piece. The ends of the first spring pieces that are far apart from each other are fixedly connected to the syringe. A gear is movably connected to the inner cavity of the push rod body located between the first and second latching blocks. A button block is movably latched in the inner cavity on one side of the syringe. The upper and lower parts of the button block are provided with second spring pieces. The two ends of the second spring pieces are fixedly connected to the button block and the syringe, respectively. The surface and lower surface of the gear are respectively engaged with the first and second latching blocks.

[0008] Preferably, the protective component includes a cylindrical block, the outer surface of which is fixedly connected to a syringe, a limiting rod is fixedly connected to the inner cavity of the cylindrical block at a 90-degree angle, a disc plug is movably connected to the inner cavity of the cylindrical block, a U-shaped channel is opened in the inner cavity of the limiting rod, a second through hole is opened at the top and bottom of the cylindrical block, and a third through hole is opened at the bottom of the disc plug.

[0009] Preferably, the disinfectant cotton removal assembly includes a push plate and a third tension spring. The push plate is movably connected to the inner cavity of the push rod body. A first spring is fixedly connected to the bottom of the push plate. A toothed plate and a cap are movably engaged in the inner cavity at the top of the push rod body. A pull rope is fixedly connected to one side of the toothed plate, and one end of the pull rope is fixedly connected to a syringe. A second spring is fixedly connected to one side of the cap, and the other end of the second spring is fixedly connected to the push rod body. The two ends of the third tension spring are fixedly connected to the toothed plate and the syringe, respectively. A slot is opened on one side of the push rod body, and a columnar alcohol cotton placed above the push plate is placed in the inner cavity of the push rod body.

[0010] Preferably, one end of the bottom of the push rod body is located in the inner cavity of the syringe and is interference-fitted with the inner cavity of the syringe, one end of the middle part of the push rod body is clearance-fitted with the inner cavity of the syringe, and one end of the top of the push rod body penetrates the syringe and extends above the syringe.

[0011] Preferably, the ends of the first and second locking blocks that are far apart from each other both penetrate the push rod body and extend into the interior of the syringe, and are engaged with the syringe. A needle is provided at one bottom end of the syringe.

[0012] Preferably, the button block and the first locking block are both arc-shaped on the side closest to each other, and the radius of their arc surfaces is equal to the radius at the same height of the push rod body. The end of the button block away from the first locking block passes through the syringe and extends to the outside of the syringe.

[0013] Preferably, one end of the top of the cylindrical block passes through the syringe and extends to the outside of the syringe, the inner cavity of the syringe is connected to the outside through the cylindrical block, and the inner cavity of the disc plug is movably connected to the outer surface of the limiting rod.

[0014] Preferably, one end of the bottom of the U-shaped pipe is connected to the third through hole, and one end of the top of the U-shaped pipe is sealed to the inner wall of the disc plug. The inner diameter of the lower part of the third through hole is larger than the inner diameter of the upper part.

[0015] Preferably, one end of the bottom of the first spring is fixedly connected to the push rod body, one end of the top of the columnar alcohol cotton abuts against the lower surface of the cover, one end of the cover near the columnar alcohol cotton is needle-shaped and cooperates with the columnar alcohol cotton, the third tension spring is sleeved inside the toothed plate, and one end of the bottom of the pull rope cooperates with the groove.

[0016] The present invention also provides a method of operating the clinical sampling device for thyroid treatment as described above, comprising the following steps:

[0017] S1. First, the operator inserts the needle into the patient's body. When the operator needs to collect a sample from the patient's thyroid gland, pressing the button will cause the button to squeeze the first locking block and retract it into the push rod body. At the same time, the movement of the first locking block will also drive the gear to rotate and cause the second locking block to move closer to the first locking block. Finally, both the first and second locking blocks will be released from the syringe. At this time, the push rod body will move upward under the action of the first tension spring, thereby enabling the operator to collect a thyroid gland sample from the patient's body with one hand.

[0018] S2. Due to the tension of the first spring, when the push rod moves upward, the gas inside the syringe will enter the inner cavity of the cylindrical block through the second through hole at the bottom of the cylindrical block. At this time, the push rod moves upward at a relatively fast speed, which will cause a large amount of gas to enter the inner cavity of the cylindrical block. At this time, the disc plug will be pushed up and move upward, which will block one end of the top of the U-shaped tube. At the same time, the gas inside the syringe will be discharged from the top of the cylindrical block through the third through hole. At this time, because the diameter of the top end of the third through hole is small, the gas damping effect will slow down the upward speed of the push rod, thereby preventing the device from drawing too fast and causing a dangerous situation for the patient.

[0019] S3. Simultaneously, as the push rod body moves upward, one end of the top of the pull rope will move upward and straighten, pulling the third spring to move closer to the columnar alcohol cotton and insert it into the side wall of the columnar alcohol cotton. Then, the operator moves the cover closer to the second spring to close it, and a section of columnar alcohol cotton can be taken out from the top of the push rod body for disinfection of the patient's injection site.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] This invention, through the cooperation of the push rod body, the first tension spring, the syringe, and the locking assembly, enables the device to be easily operated with one hand while improving safety. Pressing the button block will cause the button block to squeeze the first locking block into the push rod body. At the same time, the movement of the first locking block will drive the gear to rotate, causing the second locking block to move closer to the first locking block. Finally, both the first and second locking blocks will disengage from the syringe. At this time, the push rod body will move upward under the tension of the first tension spring, thereby enabling the operator to collect thyroid samples from the patient with one hand, and also preventing shaking when the operator pulls the push rod body with the other hand.

[0022] This invention utilizes the cooperation between the disc plug, U-shaped tube, second through hole, and third through hole to provide excellent protection. As the push rod moves upward, gas from inside the syringe enters the inner cavity of the cylindrical block through the second through hole at the bottom. The push rod moves upward rapidly, causing a large amount of gas to enter the cylindrical block. This push rod then lifts and moves upward, blocking one end of the top of the U-shaped tube. Simultaneously, gas from inside the syringe exits through the third through hole from the top of the cylindrical block. Because the diameter of the top end of the third through hole is small, the gas damping effect slows the upward movement of the push rod, preventing the device from drawing gas too quickly and causing a dangerous situation for the patient.

[0023] This invention utilizes the cooperation of a third tension spring, a cylindrical alcohol swab, a first spring, and a pull rope to facilitate the removal of the disinfectant swab. As the push rod moves upward, it causes one end of the pull rope to move upward and taut, simultaneously pulling the third tension spring to move closer to the cylindrical alcohol swab and insert it into the side wall of the swab. Then, the operator moves the cover closer to the second spring to close it, allowing a section of the cylindrical alcohol swab to be removed from the top of the push rod for disinfection of the patient's injection site. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a front cross-sectional view of the present invention.

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0027] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0028] Figure 5 for Figure 2 A magnified view of point C in the middle.

[0029] Figure 6 This is an external view of the internal structure of the present invention.

[0030] Figure 7 This is a schematic diagram of the mechanism of the snap-fit ​​component of the present invention.

[0031] Figure 8 This is an exploded view of the rope section of the present invention.

[0032] In the diagram: 1. Syringe; 2. Push rod body; 3. First tension spring; 4. Snap-fit ​​assembly; 401. First snap-fit ​​block; 402. Second snap-fit ​​block; 403. First spring; 404. Gear; 405. Button block; 406. Second spring; 5. Protective assembly; 501. Cylindrical block; 502. Limiting rod; 503. U-shaped tube; 504. Second through hole; 505. Third through hole; 506. Disc plug; 6. Sterilized cotton removal assembly; 601. Push plate; 602. First spring; 603. Toothed plate; 604. Pull rope; 605. Third tension spring; 606. Cap; 607. Second spring; 608. Groove; 7. Columnar alcohol cotton. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figures 1 to 8 As shown, the present invention provides a clinical sampling device for thyroid treatment, including a syringe 1, a push rod body 2 movably connected to the inner cavity of the syringe 1, a first tension spring 3 sleeved on the outer surface of the push rod body 2, and the two ends of the first tension spring 3 being fixedly connected to the syringe 1 and the push rod body 2 respectively, a snap-fit ​​assembly 4 and a sterile cotton removal assembly 6 movably connected to the inner cavity of the push rod body 2, and a protective assembly 5 fixedly connected to the inner cavity on one side of the middle part of the syringe 1.

[0035] The locking assembly 4 includes a first locking block 401 and a second locking block 402. Both the first locking block 401 and the second locking block 402 are movably connected to the inner cavities on both sides of the middle of the push rod body 2. A first spring 403 is fixedly connected to the end of each spring 403 that is close to the other, and the ends of the first spring 403 that are far apart are fixedly connected to the syringe 1. A gear 404 is movably connected to the inner cavity of the push rod body 2 located between the first locking block 401 and the second locking block 402. A button block 405 is movably locked to the inner cavity on one side of the syringe 1. A second spring 406 is provided on both the upper and lower parts of the button block 405, and the two ends of the second spring 406 are fixedly connected to the button block 405 and the syringe 1, respectively. The surface and lower surface of the gear 404 are respectively... The first locking block 401 and the second locking block 402 are engaged and connected. Pressing the button block 405 will cause the button block 405 to squeeze the first locking block 401 and retract it into the push rod body 2. At the same time, the movement of the first locking block 401 will also drive the gear 404 to rotate, and cause the second locking block 402 to move closer to the first locking block 401. Finally, the first locking block 401 and the second locking block 402 will be released from the syringe 1. At this time, the push rod body 2 will move upward under the action of the first tension spring 3, thereby realizing the collection of thyroid samples from the patient's body by the operator with one hand, and also preventing the shaking when the operator pulls the push rod body 2 with the other hand.

[0036] like Figure 1 , Figure 4 and Figure 6As shown, the protective component 5 includes a cylindrical block 501. The outer surface of the cylindrical block 501 is fixedly connected to the syringe 1. A limiting rod 502 is fixedly connected to the inner cavity of the cylindrical block 501 at a 90-degree angle. A disc plug 506 is movably connected to the inner cavity of the cylindrical block 501. A U-shaped channel 503 is opened in the inner cavity of the limiting rod 502. Second through holes 504 are opened at the top and bottom of the cylindrical block 501, and a third through hole 505 is opened at the bottom of the disc plug 506. When the push rod body 2 moves upward, the gas inside the syringe 1 will enter the cylindrical block 501 through the second through hole 504 at the bottom of the cylindrical block 501. Inside the cavity of 01, the push rod body 2 moves upward at a relatively fast speed, causing a large amount of gas to enter the cylindrical block 501. At this time, the disc plug 506 will be pushed up and move upward, thus blocking one end of the top of the U-shaped tube 503. Simultaneously, the gas inside the syringe 1 will be discharged from the top of the cylindrical block 501 through the third through hole 505. Since the diameter of the top end of the third through hole 505 is small, the gas damping effect will slow down the upward speed of the push rod body 2, thereby preventing the device from drawing too quickly and causing a dangerous situation for the patient.

[0037] like Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8 As shown, the disinfectant cotton removal component 6 includes a push plate 601 and a third tension spring 605. The push plate 601 is movably connected to the inner cavity of the push rod body 2. A first spring 602 is fixedly connected to the bottom of the push plate 601. A toothed plate 603 and a cover 606 are movably engaged in the inner cavity at the top of the push rod body 2. A pull rope 604 is fixedly connected to one side of the toothed plate 603, and one end of the pull rope 604 is fixedly connected to the syringe 1. A second spring 607 is fixedly connected to one side of the cover 606, and the other end of the second spring 607 is fixedly connected to the push rod body 2. The two ends of the third tension spring 605 are respectively connected to the toothed plate 601 and the cover 606. 3 is fixedly connected to the syringe 1. A slot 608 is opened on one side of the push rod body 2. A columnar alcohol cotton 7 is placed in the inner cavity of the push rod body 2 above the push plate 601. As the push rod body 2 moves upward, it drives one end of the top of the pull rope 604 to move upward and straighten. At the same time, it pulls the third tension spring 605 to move towards the side of the columnar alcohol cotton 7 and inserts it into the side wall of the columnar alcohol cotton 7. Then, the operator moves the cover 606 towards the side of the second spring 607, and a section of columnar alcohol cotton 7 can be taken out from the top of the push rod body 2 for disinfection of the patient's injection site.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, one end of the bottom of the push rod body 2 is located in the inner cavity of the syringe 1 and is interference-fitted with the inner cavity of the syringe 1. One end of the middle part of the push rod body 2 is clearance-fitted with the inner cavity of the syringe 1. One end of the top of the push rod body 2 penetrates the syringe 1 and extends to the top of the syringe 1. The ends of the first locking block 401 and the second locking block 402, which are far apart from each other, both penetrate the push rod body 2 and extend into the interior of the syringe 1, and are engaged with the syringe 1. A needle is provided at one end of the bottom of the syringe 1. The sides of the button block 405 and the first locking block 401 that are close to each other are arc-shaped, and the radius of their arc surfaces is the same as that of the push rod. The radii at the same height of the body 2 are equal. The end of the button block 405 away from the first locking block 401 passes through the syringe 1 and extends to the outside of the syringe 1. By designing that the sides of the button block 405 and the first locking block 401 that are close to each other are both arc-shaped, and the radius of the arc surfaces of both is equal to the radius at the same height of the push rod body 2, it is ensured that when the operator presses the button block 405, the second spring 406 can be completely retracted into the interior of the push rod body 2, while preventing the end of the button block 405 that is close to the push rod body 2 from entering the interior of the push rod body 2.

[0039] It is worth noting that when the operator needs to reset the device, he only needs to press the push rod body 2 so that the first locking block 401 and the second locking block 402 can be locked into the syringe 1 respectively.

[0040] like Figure 1 , Figure 4 and Figure 6 As shown, one end of the top of the cylindrical block 501 penetrates through the syringe 1 and extends to the outside of the syringe 1. The inner cavity of the syringe 1 is connected to the outside through the cylindrical block 501. The inner cavity of the disc plug 506 is movably connected to the outer surface of the limiting rod 502. One end of the bottom of the U-shaped pipe 503 is connected to the third through hole 505. One end of the top of the U-shaped pipe 503 is sealed to the inner wall of the disc plug 506. The inner diameter of the lower part of the third through hole 505 is larger than the inner diameter of the upper part. By designing that the inner diameter of the lower part of the third through hole 505 is larger than the inner diameter of the upper part, the rate at which gas flows out through the third through hole 505 is reduced, thereby generating a gas damping effect, which in turn reduces the rising rate of the push rod body 2.

[0041] It is worth noting that when the device is reset and the push rod body 2 moves downward, the disc plug 506 will move downward. At this time, one end of the bottom of the U-shaped pipe 503 will be connected to the third through hole 505, thereby increasing the rate at which external gas enters the inner cavity of the syringe 1 through the cylindrical block 501, so as to facilitate the rapid reset of the device.

[0042] like Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8As shown, one end of the bottom of the first spring 602 is fixedly connected to the push rod body 2, one end of the top of the columnar alcohol cotton 7 abuts against the lower surface of the cover 606, the end of the cover 606 near the columnar alcohol cotton 7 is needle-shaped and cooperates with the columnar alcohol cotton 7, the third tension spring 605 is sleeved inside the toothed plate 603, and one end of the bottom of the pull rope 604 cooperates with the slot 608; when the device is reset, the operator first needs to close the cover 606, so that the cover 606 is reset under the action of the elastic force of the second spring 607. At the same time, while pressing down the push rod body 2, the pull rope 604 will be relaxed. At the same time, the pulling force of the third tension spring 605 will reset the third tension spring 605. At this time, the columnar alcohol cotton 7 will be lifted up under the action of the elastic force of the first spring 602, so that the top of the columnar alcohol cotton 7 contacts the bottom of the cover 606, thus facilitating the operator's next use;

[0043] It is worth noting that the design of the slot 608 prevents the push rod body 2 from causing the bottom end of the pull rope 604 to move.

[0044] The present invention also provides a method of operating the clinical sampling device for thyroid treatment as described above, comprising the following steps:

[0045] First, the operator inserts the needle into the patient's body. When the operator needs to collect a sample from the patient's thyroid gland, pressing button 405 will cause button 405 to compress the first locking block 401 and retract it into the push rod body 2. At the same time, the movement of the first locking block 401 will also drive the gear 404 to rotate, causing the second locking block 402 to move closer to the first locking block 401. Finally, both the first locking block 401 and the second locking block 402 will be released from the syringe 1. At this time, the push rod body 2 will move upward under the pulling force of the first tension spring 3, thereby enabling the operator to collect a thyroid gland sample from the patient's body with one hand.

[0046] Due to the tension of the first tension spring 3, when the push rod body 2 moves upward, the gas inside the syringe 1 will enter the inner cavity of the cylindrical block 501 through the second through hole 504 at the bottom of the cylindrical block 501. At this time, the push rod body 2 moves upward at a relatively fast speed, which will cause a large amount of gas to enter the cylindrical block 501. At this time, the disc plug 506 will be pushed up and move upward, thereby blocking one end of the top of the U-shaped tube 503. At the same time, the gas inside the syringe 1 will be discharged from the top of the cylindrical block 501 through the third through hole 505. At this time, because the diameter of the top end of the third through hole 505 is small, the gas damping effect will slow down the upward speed of the push rod body 2, thereby preventing the device from drawing too fast and causing a dangerous situation for the patient.

[0047] Simultaneously, as the push rod body 2 moves upward, one end of the top of the pull rope 604 will move upward and straighten, pulling the third tension spring 605 to move towards the side of the columnar alcohol cotton 7 and insert it into the side wall of the columnar alcohol cotton 7. Then, the operator moves the cover 606 towards the side of the second spring 607, and a section of columnar alcohol cotton 7 can be taken out from the top of the push rod body 2 for disinfection of the patient's injection site.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clinical sampling device for thyroid treatment, comprising a syringe (1), characterized in that: The inner cavity of the syringe (1) is movably connected to a push rod body (2). A first tension spring (3) is sleeved on the outer surface of the push rod body (2), and the two ends of the first tension spring (3) are fixedly connected to the syringe (1) and the push rod body (2) respectively. The inner cavity of the push rod body (2) is movably connected to a snap-fit ​​assembly (4) and a sterile cotton removal assembly (6). A protective assembly (5) is fixedly connected to the inner cavity on one side of the middle part of the syringe (1). The snap-fit ​​assembly (4) includes a first snap block (401) and a second snap block (402). The first snap block (401) and the second snap block (402) are both movably connected to the inner cavities on both sides of the middle part of the push rod body (2). A first spring piece (403) is fixedly connected to one end of the first snap block (401) and the second snap block (402) that are close to each other. The second snap block (402) and the first snap block (401) that are close to each other are fixedly connected to... Another first spring (403), the end of the first spring (403) that is far away from the first locking block (401) and the end of the other first spring (403) that is far away from the second locking block (402) are both fixedly connected to the syringe (1). A gear (404) is movably connected in the inner cavity of the push rod body (2) located between the first locking block (401) and the second locking block (402). A button block (405) is movably locked in the inner cavity on one side of the syringe (1). A second spring (406) is provided on the upper and lower parts of the button block (405), and the two ends of the second spring (406) are fixedly connected to the button block (405) and the syringe (1) respectively. The upper surface of the gear (404) is meshed with the first locking block (401), and the lower surface of the gear (404) is meshed with the second locking block (402). The protective component (5) includes a cylindrical block (501), the outer surface of which is fixedly connected to the syringe (1), a limiting rod (502) is fixedly connected to the inner cavity of the cylindrical block (501) at a 90-degree angle, a disc plug (506) is movably connected to the inner cavity of the cylindrical block (501), a U-shaped tube (503) is opened in the inner cavity of the limiting rod (502), a second through hole (504) is opened at the top and bottom of the cylindrical block (501), and a third through hole (505) is opened at the bottom of the disc plug (506). The disinfectant cotton removal component (6) includes a push plate (601) and a third tension spring (605). The push plate (601) is movably connected to the inner cavity of the push rod body (2). A first spring (602) is fixedly connected to the bottom of the push plate (601). A toothed plate (603) and a cover (606) are movably engaged in the inner cavity at the top of the push rod body (2). A pull rope (604) is fixedly connected to one side of the toothed plate (603), and one end of the bottom of the pull rope (604) is connected to the syringe. (1) Fixed connection: A second spring (607) is fixedly connected to one side of the cover (606), and the other end of the second spring (607) is fixedly connected to the push rod body (2). The two ends of the third tension spring (605) are fixedly connected to the toothed plate (603) and the syringe (1) respectively. A slot (608) is opened on one side of the push rod body (2). A columnar alcohol cotton (7) located above the push plate (601) is placed in the inner cavity of the push rod body (2). One end of the bottom of the push rod body (2) is located in the inner cavity of the syringe (1) and is interference-fitted with the inner cavity of the syringe (1). One end of the middle part of the push rod body (2) is clearance-fitted with the inner cavity of the syringe (1). One end of the top of the push rod body (2) penetrates the syringe (1) and extends to the top of the syringe (1). The end of the first locking block (401) that is far away from the second locking block (402) and the end of the second locking block (402) that is far away from the first locking block (401) both pass through the push rod body (2) and extend into the interior of the syringe (1), and are engaged with the syringe (1). A needle is provided at one bottom end of the syringe (1). The side of the button block (405) that is close to the first card block (401) and the side of the first card block (401) that is close to the button block (405) are both arc-shaped, and the radius of the arc surface of both is equal to the radius at the same height of the push rod body (2). The end of the button block (405) away from the first card block (401) passes through the syringe (1) and extends to the outside of the syringe (1). One end of the top of the cylindrical block (501) passes through the syringe (1) and extends to the outside of the syringe (1). The inner cavity of the syringe (1) is connected to the outside through the cylindrical block (501). The inner cavity of the disc plug (506) is movably connected to the outer surface of the limiting rod (502).

2. The clinical sampling device for thyroid treatment according to claim 1, characterized in that: One end of the bottom of the U-shaped pipe (503) is connected to the third through hole (505), and one end of the top of the U-shaped pipe (503) is sealed to the inner wall of the disc plug (506). The inner diameter of the lower part of the third through hole (505) is larger than the inner diameter of the upper part of the third through hole (505).

3. The clinical sampling device for thyroid treatment according to claim 2, characterized in that: One end of the bottom of the first spring (602) is fixedly connected to the push rod body (2), one end of the top of the columnar alcohol cotton (7) abuts against the lower surface of the cover (606), one end of the cover (606) near the columnar alcohol cotton (7) is needle-shaped and cooperates with the columnar alcohol cotton (7), the third tension spring (605) is sleeved inside the toothed plate (603), and one end of the bottom of the pull rope (604) cooperates with the slot (608).

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