Lung cancer tumor sampling device

Abstract

The invention discloses a lung cancer tumor sampling device, and relates to the technical field of medical examination, the lung cancer tumor sampling device comprises a handle and a sampling needle, one end of the handle is provided with an assembly cavity, the handle is provided with the sampling needle, one end of the sampling needle goes deep into the assembly cavity, and the other end of the sampling needle is internally and rotatably provided with a sealing cover through a first swing shaft in a matched manner; after one end of the sampling needle reaches a sampling area, the swinging rod drives the swinging sleeve to swing and rotate, and the sealing cover in a blocked state is pulled to an open state under the matching of the two sterile lines, so that the opening and closing of the end opening of the sampling needle can be realized, the sampling needle can be closed in time after sampling, the backflow and loss of a sampling substance are avoided, and the sampling effect is better ensured; under the cooperation of the movable needle tube, the sampling test tube is adjusted to be in a negative pressure state, after the sealing cover at the front end of the sampling needle is opened, rapid and effective suction can be realized, the operation is more convenient, and the sampling effectiveness is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical examinations, and particularly to a lung cancer tumor sampling device. Background Art

[0002] Lung cancer is the most common malignant tumor in the lungs. The vast majority of lung cancers originate from the bronchial mucosa epithelium, so it is called bronchogenic carcinoma. When diagnosing lung cancer, it is necessary to obtain a biopsy sample through puncture sampling to provide a reference basis for tumor diseases;

[0003] For example, publication number: CN 113974703 A. The present invention discloses a lung cancer tumor sampling device, which relates to the technical field of medical devices and includes a body. A driving mechanism is installed inside the body. A connecting pipe is arranged on one side of the driving mechanism. One end of the connecting pipe is inserted with a sampling bottle. One end of the sampling bottle is threadedly connected with a sampling needle. A puncture needle is sleeved on the surface of the sampling needle. Sampling windows are opened on the surface of the puncture needle. One end of the puncture needle is fixedly connected with a slider. The puncture needle is rotatably installed on the inner side wall of the body through the slider; the driving mechanism includes a piston cylinder, an electric push rod, a button and a power supply. The output end of the electric push rod penetrates through one end of the piston cylinder and is fixedly connected with a piston. This lung cancer tumor sampling device can complete three cuts at different positions and synchronous sampling of tumor fluid in one puncture, and has less damage to tumor tissues, can well maintain the activity of tumor cells, and is convenient for subsequent treatment;

[0004] Based on the retrieval of the above patent and the discovery of equipment in the prior art, it is found that the needle head has an open structure and there is a surplus space inside the needle head. After the needle head is inserted, when the needle head advances, before reaching the sampling point, it will enter other substances in the body, affecting the accuracy of sampling. At the same time, during the sampling process, manual operation is used for artificial pushing and sucking. During the sucking process, the sucking pressure and speed are not easy to control, affecting the accuracy of sampling. Therefore, a lung cancer tumor sampling device is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a lung cancer tumor sampling device to solve the following technical problems: After the needle head is inserted, when the needle head advances, before reaching the sampling point, it will enter other substances in the body, affecting the accuracy of sampling.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A lung cancer tumor sampling device, comprising a handle and a sampling needle. One end of the handle is provided with an assembly cavity, and a sampling needle is installed on the handle, with one end of the sampling needle extending into the assembly cavity. Inside the other end of the sampling needle, a sealing cover is rotatably installed through cooperation with a first swing shaft. At the port position of the other end of the sampling needle, a baffle is fixed, and the baffle is arranged on one side of the sealing cover.

[0008] One end of the handle is installed with a swing sleeve through cooperation with a first swing shaft. First wire loops are respectively fixed at the upper and lower ends of the swing sleeve, and second wire loops are respectively fixed at the upper and lower ends of the end face of the sealing cover. The first wire loops and the second wire loops on the same upper side or lower side are connected by a sterile wire.

[0009] As a further scheme of the present invention: A fixing frame is fixedly connected at the port of one end of the sampling needle. A through hole is opened on the fixing frame corresponding to the port of the sampling needle, and an annular rubber pad is fixed at the port of the through hole.

[0010] As a further scheme of the present invention: An air pressure chamber is opened in the middle of the handle. A fixed needle tube is movably inserted between the air pressure chamber and the assembly cavity. One end of the fixed needle tube is movably sleeved with a movable needle tube. One end of the movable needle tube is sleeved with a support plate, and a rubber head is fixed on the support plate.

[0011] As a further scheme of the present invention: A sliding hole is opened on the wall of the assembly cavity. A push rod is fixed on the bottom side of the support plate, and the push rod is slidably installed in the sliding hole. A cylinder is fixed on the surface of the handle, and the acting end of the cylinder is connected to the push rod.

[0012] As a further scheme of the present invention: A movable rod is slidably assembled on the side wall of the air pressure chamber. A lower pressing plate is fixed at the top end of the movable rod, and a sealing plate is fixed at the bottom end of the movable rod. A guiding rod is fixed on the inner wall of the air pressure chamber. A guiding hole is opened on the bottom side of the sealing plate, and the top end of the guiding rod is inserted into the guiding hole. A spring is sleeved on the outside of the guiding rod, and the spring is arranged between the sealing plate and the inner wall of the air pressure chamber.

[0013] As a further scheme of the present invention: The sealing plate is arranged at the port of the fixed needle tube, and the end face of the fixed needle tube is tangent to the side face of the sealing plate, which can ensure the airtightness of the whole.

[0014] As a further scheme of the present invention: A micro air pump is installed at the other end of the handle. The exhaust port of the micro air pump is communicated with the air pressure chamber. A pressure gauge is connected and assembled on the air pressure chamber, which can control the negative pressure value in the air pressure chamber and ensure the stability of the sampling pressure.

[0015] As a further solution of the present invention: a chute is provided on the handle, a sliding plate is slidably assembled inside the chute, a pushing plate is fixed on the sliding plate, wherein one end of the pushing plate is arranged on the top side of the lower pressing plate, a clamping groove is provided at the other end of the pushing plate, and the swing rod is arranged in the clamping groove.

[0016] As a further solution of the present invention: a sampling test tube is held on the fixing frame, a rubber cap is sealed at the bottom end of the sampling test tube, and the sampling test tube and the rubber cap are of an integral structure, which can ensure the accuracy of sampling.

[0017] As a further solution of the present invention: an electric control element and a storage battery are assembled on the handle, the electric control element is used for controlling the micro air pump and the cylinder, and the storage battery is used for supplying power to the electric components, which can cooperate to achieve a better operation effect.

[0018] Advantages of the present invention:

[0019] In order to prevent the premature entry of the advance amount into the needle, a swingable sealing cover is provided at the end of the sampling needle. The sealing cover rotates under the cooperation of the second swing shaft. The sealing cover is of a micro-nano structure and can meet the use inside the sampling needle. After one end of the sampling needle reaches the sampling area, the swing sleeve is driven by the swing rod to swing and rotate. Under the cooperation of the two sterile wires, the sealing cover in the blocked state is pulled to the open state, which can realize the opening and closing of the port of the sampling needle, and can be closed in time after sampling to avoid the backflow and loss of the sampled substance, and better ensure the sampling effect;

[0020] During sampling, the sample is accurately aspirated without excessive or insufficient acquisition, and effective sampling can be achieved; during the sampling operation, after the negative pressure value of the air pressure chamber is adjusted, the lower pressing plate is pressed, and under the cooperation of the movable rod, the sealing plate can be sunk. After the sealing plate sinks, the port of the fixed needle tube is opened. Under the cooperation of the movable needle tube, the sampling test tube is adjusted to a negative pressure state. After the sealing cover at the front end of the sampling needle is opened, rapid and effective aspiration can be achieved, the operation is more convenient, and the effectiveness of sampling is improved. Description of the drawings

[0021] The present invention will be further described below with reference to the drawings.

[0022] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention;

[0023] Figure 2 is the cross-sectional structure schematic diagram of the end of the sampling needle of the present invention;

[0024] Figure 3 is the overall cross-sectional structure schematic diagram of the present invention;

[0025] Figure 4It is the first half-sectional three-dimensional structure diagram of the handle of the present invention;

[0026] Figure 5 It is the second half-sectional three-dimensional structure diagram of the handle in the present invention;

[0027] Figure 6 It is the structure diagram of the sampling test tube in the present invention;

[0028] Figure 7 It is the three-dimensional structure diagram of the second embodiment in the present invention;

[0029] In the figure: 1. Handle; 2. Sampling needle; 3. Air pressure chamber; 4. Assembly cavity; 6. Micro air pump; 7. Swing rod; 8. Swing sleeve; 9. First wire loop; 10. First swing shaft; 11. Second swing shaft; 12. Second wire loop; 13. Baffle; 14. Sealing cover; 31. Fixed syringe; 32. Cylinder; 33. Push rod; 34. Support plate; 35. Rubber head; 36. Movable syringe; 41. Fixed frame; 42. Sampling test tube; 43. Rubber pad; 44. Rubber cap; 51. Lower pressing plate; 52. Movable rod; 53. Sealing plate; 54. Spring; 55. Guide rod; 56. Pressure gauge; 61. Chute; 62. Slide plate; 63. Push plate; 64. Card slot. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1

[0032] Please refer to Figure 1-2 As shown, the present invention is a lung cancer tumor sampling device, including a handle 1 and a sampling needle 2. One end of the handle 1 is provided with an assembly cavity 4. The handle 1 is installed with a sampling needle 2, and one end of the sampling needle 2 extends into the assembly cavity 4. The other end of the sampling needle 2 is internally rotatably installed with a sealing cover 14 through a first swing shaft 10. A baffle 13 is fixed at the port position of the other end of the sampling needle 2, and the baffle 13 is arranged on one side of the sealing cover 14;

[0033] One end of the handle 1 is installed with a swing sleeve 8 through a first swing shaft 10. The upper and lower ends of the swing sleeve 8 are respectively fixed with a first wire loop 9. The upper and lower ends of the end face of the sealing cover 14 are respectively fixed with a second wire loop 12. The first wire loop 9 and the second wire loop 12 on the same upper side or lower side are connected by a sterile wire;

[0034] During operation, when the sampling device penetrates into the body through the epidermal wound, in a conventional sampling device, the needle has an open structure and there is extra space inside the needle. After the needle penetrates, when the needle advances, it may enter other substances in the body before reaching the sampling point. To avoid the entry of premature substances into the needle, a swingable sealing cover 14 is provided at the end of the sampling needle 2. The sealing cover 14 rotates in cooperation with the second swing shaft 11. The sealing cover 14 is a micro-nano structure and can meet the use inside the sampling needle 2. After one end of the sampling needle 2 reaches the sampling area, the swing rod 7 drives the swing sleeve 8 to swing and rotate. With the cooperation of two sterile threads, the sealing cover 14 in the sealed state is pulled to the open state, enabling the opening and closing of the port of the sampling needle 2. It can be closed in time after sampling to avoid the backflow and loss of the sampled substance, and better ensure the sampling effect;

[0035] After one end of the sampling needle 2 reaches the sampling area, the swing rod 7 drives the swing sleeve 8 to swing and rotate. With the cooperation of two sterile threads, the sealing cover 14 in the sealed state is pulled to the open state, enabling the opening and closing of the port of the sampling needle 2. It can be closed in time after sampling to avoid the backflow and loss of the sampled substance, and better ensure the sampling effect.

[0036] Please refer to Figures 3-6 As shown, a fixing frame 41 is fixedly connected to the port at one end of the sampling needle 2. A through hole is provided in the fixing frame 41 corresponding to the port of the sampling needle 2. An annular rubber pad 43 is fixed at the port of the through hole. A sampling test tube 42 is supported on the fixing frame 41. A rubber cap 44 is sealed at the bottom end of the sampling test tube 42. The sampling test tube 42 and the rubber cap 44 are of an integral structure;

[0037] An air pressure chamber 3 is provided in the middle of the handle 1. A fixed syringe tube 31 is movably inserted between the air pressure chamber 3 and the assembly cavity 4. One end of the fixed syringe tube 31 is movably sleeved with a movable syringe tube 36. One end of the movable syringe tube 36 is sleeved with a support plate 34. A rubber head 35 is fixed on the support plate 34. A sliding hole is provided on the cavity wall of the assembly cavity 4. A push rod 33 is fixed on the bottom side of the support plate 34, and the push rod 33 is slidably installed in the sliding hole. A cylinder 32 is fixed on the surface of the handle 1, and the acting end of the cylinder 32 is connected to the push rod 33;

[0038] During the sampling process, it is necessary to quickly obtain the sample. In the conventional operation, manual operation is used to manually push and suck. During the sucking process, it is not easy to control the sucking pressure and speed. In order to ensure the sucking effect of the sample, the sampling test tube 42 is placed on the fixing rack 41. With the cooperation of the air cylinder 32, the push rod 33 is pushed to slide. With the cooperation of the support plate 34 and the rubber head 35, the sampling test tube 42 is fixed on the fixing rack 41. With the cooperation of the rubber pad 43, the sealing of the sampling test tube 42 is realized, the airtightness during sampling is ensured, and the accuracy of sampling is improved. When the support plate 34 is pushed forward, one end of the movable syringe 36 cooperates to penetrate into the rubber cap 44, and the internal pressure of the sampling test tube 42 can be reduced by exhausting air, achieving a better sampling effect;

[0039] A movable rod 52 is slidably assembled on the side wall of the air pressure chamber 3. A lower pressing plate 51 is fixed at the top end of the movable rod 52. A sealing plate 53 is fixed at the bottom end of the movable rod 52. A guide rod 55 is fixed on the inner wall of the air pressure chamber 3. A guide hole is formed on the bottom side of the sealing plate 53. The top end of the guide rod 55 is inserted into the guide hole. A spring 54 is sleeved on the outer side of the guide rod 55. The spring 54 is arranged between the sealing plate 53 and the inner wall of the air pressure chamber 3. The sealing plate 53 is arranged at the port of the fixed syringe 31. The end face of the fixed syringe 31 is tangent to the side face of the sealing plate 53. A micro air pump 6 is installed at the other end of the handle 1. The exhaust port of the micro air pump 6 is communicated with the air pressure chamber 3. A pressure gauge 56 is connected and assembled on the air pressure chamber 3. An electric control element and a storage battery are assembled on the handle 1. The electric control element is used for controlling the micro air pump 6 and the air cylinder 32. The storage battery is used for supplying power to the electric components;

[0040] Before sampling, the micro air pump 6 is operated to evacuate the air pressure chamber 3. The negative pressure value in the air pressure chamber 3 is judged through the pressure gauge 56. After the negative pressure value is reached, the micro air pump 6 stops operating, so that the sample can be accurately sucked during sampling, and it will not be obtained too much or too little, and effective sampling can be realized; During the sampling operation, the lower pressing plate 51 is pressed. With the cooperation of the movable rod 52, the sinking of the sealing plate 53 can be realized. After the sealing plate 53 sinks, the port of the fixed syringe 31 is opened. With the cooperation of the movable syringe 36, the sampling test tube 42 is adjusted to a negative pressure state. After the sealing cover 14 at the front end of the sampling needle 2 is opened, rapid and effective sucking can be realized, the operation is more convenient, and the effectiveness of sampling is improved.

[0041] After the above structure, when the sealing plate 53 sinks, the port of the fixed syringe 31 is opened. With the cooperation of the movable syringe 36, the sampling test tube 42 is adjusted to a negative pressure state. After the sealing cover 14 at the front end of the sampling needle 2 is opened, rapid and effective sucking can be realized, the operation is more convenient, and the effectiveness of sampling is improved.

[0042] Embodiment Two

[0043] Please refer to Figure 7 As shown, a chute 61 is provided on the handle 1, a slide plate 62 is slidably assembled inside the chute 61, and a push plate 63 is fixed on the slide plate 62. Among them, one end of the push plate 63 is arranged on the top side of the lower pressing plate 51, and a clamping groove 64 is provided at the other end of the push plate 63. The swing rod 7 is arranged in the clamping groove 64. To cooperate to achieve the overall coordinated operation, when the negative pressure value in the air pressure chamber 3 reaches the rated value, the push plate 63 is pushed. Under the sliding fit of the slide plate 62 along the chute 61, one end of the push plate 63 squeezes the lower pressing plate 51, realizing the communication between the air pressure chamber 3 and the sampling test tube 42. The air pressure of the sampling test tube 42 is adjusted to negative pressure. At the same time, the other end of the push plate 63 pulls the swing rod 7, driving the swing sleeve 8 to swing, realizing the adjustment of the state of the sealing cover 14, which can perform synchronous operations at the moment of sampling, ensuring the quickness of sampling, making the operation simpler, and reducing the harm to the patient.

[0044] In the above structure, when the push plate 63 is pushed and under the sliding fit of the slide plate 62 along the chute 61, one end of the push plate 63 squeezes the lower pressing plate 51, adjusting the state of the sealing cover 14, which can perform synchronous operations at the moment of sampling, ensuring the quickness of sampling, making the operation simpler, and reducing the harm to the patient.

[0045] Embodiment 2

[0046] Working principle: To ensure the suction effect on the sample, the sampling test tube 42 is placed on the fixing rack 41. With the cooperation of the air cylinder 32, the push rod 33 is pushed to slide. With the cooperation of the support plate 34 and the rubber head 35, the sampling test tube 42 is fixed on the fixing rack 41. With the cooperation of the rubber pad 43, the airtightness of the sampling test tube 42 is realized, ensuring the airtightness during sampling and improving the accuracy of sampling. When the support plate 34 advances, one end of the movable syringe 36 cooperates to pierce into the rubber cap 44, and the internal pressure of the sampling test tube 42 can be reduced by exhausting gas to achieve a better sampling effect;

[0047] Through the operation of the micro air pump 6, the air pressure chamber 3 is emptied. The negative pressure value in the air pressure chamber 3 is judged by the air pressure gauge 56. After the negative pressure value is reached, the micro air pump 6 stops operating; the push plate 63 is pushed. Under the sliding fit of the slide plate 62 along the chute 61, one end of the push plate 63 squeezes the lower pressing plate 51, realizing the communication between the air pressure chamber 3 and the sampling test tube 42. The air pressure of the sampling test tube 42 is adjusted to negative pressure. At the same time, the other end of the push plate 63 pulls the swing rod 7, driving the swing sleeve 8 to swing, realizing the adjustment of the state of the sealing cover 14;

[0048] During the sampling operation, when the lower pressing plate 51 is pressed, with the cooperation of the movable rod 52, the sinking of the sealing plate 53 can be achieved. After the sealing plate 53 sinks, the port of the fixed syringe 31 is opened. With the cooperation of the movable syringe 36, the sampling test tube 42 is adjusted to a negative pressure state. After the sealing cover 14 at the front end of the sampling needle 2 is opened, rapid and effective suction can be achieved, the operation is more convenient, and the effectiveness of sampling is improved.

[0049] In order to prevent the premature entry of liquid into the needle tip, a swingable sealing cover 14 is provided at the end of the sampling needle 2. The sealing cover 14 rotates with the cooperation of the second swing shaft 11. The sealing cover 14 is a micro-nano structure and can meet the use requirements inside the sampling needle 2. After one end of the sampling needle 2 reaches the sampling area, the swing rod 7 drives the swing sleeve 8 to swing and rotate. With the cooperation of two sterile threads, the sealing cover 14 in the blocked state is pulled to the open state, enabling the opening and closing of the port of the sampling needle 2. After sampling, it can be promptly closed to prevent the backflow and loss of the sampled substance, and better ensure the sampling effect.

[0050] The above has described in detail one embodiment of the present invention, but the content is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A lung cancer tumor sampling device, characterized in that, It includes a handle (1) and a sampling needle (2). One end of the handle (1) is provided with an assembly cavity (4). The sampling needle (2) is installed on the handle (1), and one end of the sampling needle (2) extends into the assembly cavity (4). Inside the other end of the sampling needle (2), a sealing cover (14) is rotatably installed through cooperation with a first swing shaft (10). A baffle (13) is fixed at the port position of the other end of the sampling needle (2), and the baffle (13) is arranged on one side of the sealing cover (14). One end of the handle (1) is installed with a swing sleeve (8) through cooperation with the first swing shaft (10). First wire loops (9) are respectively fixed at the upper and lower ends of the swing sleeve (8). Second wire loops (12) are respectively fixed at the upper and lower ends of the end face of the sealing cover (14). The first wire loop (9) and the second wire loop (12) on the same upper or lower side are connected by a sterile wire.

2. The lung cancer tumor sampling device according to claim 1, wherein A fixing frame (41) is fixedly connected to the port of one end of the sampling needle (2). A through hole is provided on the fixing frame (41) corresponding to the port of the sampling needle (2), and an annular rubber pad (43) is fixed at the port of the through hole.

3. The lung cancer tumor sampling device according to claim 2, characterized in that, A pneumatic chamber (3) is provided in the middle of the handle (1). A fixed needle tube (31) is movably inserted between the pneumatic chamber (3) and the assembly cavity (4). One end of the fixed needle tube (31) is movably sleeved with a movable needle tube (36). One end of the movable needle tube (36) is sleeved with a support plate (34), and a rubber head (35) is fixed on the support plate (34).

4. The lung cancer tumor sampling device according to claim 3, characterized in that, A sliding hole is provided on the wall of the assembly cavity (4). A push rod (33) is fixed on the bottom side of the support plate (34), and the push rod (33) is slidably installed in the sliding hole. A cylinder (32) is fixed on the surface of the handle (1), and the acting end of the cylinder (32) is connected to the push rod (33).

5. The lung cancer tumor sampling device according to claim 4, characterized in that, A movable rod (52) is slidably assembled on the side wall of the pneumatic chamber (3). A lower pressing plate (51) is fixed at the top end of the movable rod (52), and a sealing plate (53) is fixed at the bottom end of the movable rod (52). A guide rod (55) is fixed on the inner wall of the pneumatic chamber (3). A guide hole is provided on the bottom side of the sealing plate (53), and the top end of the guide rod (55) is inserted into the guide hole. A spring (54) is sleeved on the outer side of the guide rod (55), and the spring (54) is arranged between the sealing plate (53) and the inner wall of the pneumatic chamber (3).

6. The lung cancer tumor sampling device according to claim 5, wherein The sealing plate (53) is arranged at the port of the fixed needle tube (31), and the end face of the fixed needle tube (31) is tangent to the side face of the sealing plate (53).

7. The lung cancer tumor sampling device according to claim 6, wherein, A micro air pump (6) is installed at the other end of the handle (1). The exhaust port of the micro air pump (6) is communicated with the pneumatic chamber (3), and a pressure gauge (56) is connected and assembled on the pneumatic chamber (3).

8. The lung cancer tumor sampling device according to claim 7, wherein A chute (61) is formed in the handle (1), a sliding plate (62) is slidably assembled inside the chute (61), a push plate (63) is fixed on the sliding plate (62), wherein one end of the push plate (63) is arranged on the top side of the lower pressing plate (51), a clamping groove (64) is formed at the other end of the push plate (63), and a swing rod (7) is arranged in the clamping groove (64).

9. The lung cancer tumor sampling device according to claim 8, characterized in that, A sampling test tube (42) is held on the fixing frame (41), a rubber cap (44) is sealed at the bottom end of the sampling test tube (42), and the sampling test tube (42) and the rubber cap (44) are of an integral structure.

10. The lung cancer tumor sampling device according to claim 8, wherein, An electric control element and a storage battery are assembled on the handle (1). The electric control element is used for controlling the micro air pump (6) and the cylinder (32), and the storage battery is used for supplying power to the electric components.

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