Sampling device

Abstract

The invention discloses a sampling device, and relates to the technical field of medical equipment. The device comprises a first protective cylinder, a second protective cylinder is fixedly mounted on the first protective cylinder, a sampling mechanism is arranged in the first protective cylinder and the second protective cylinder, the sampling mechanism comprises sampling cylinders arranged in the first protective cylinder and the second protective cylinder, electric telescopic rods are arranged in the sampling cylinders, and sampling needles are fixedly mounted on the electric telescopic rods. A first gear is arranged in the sampling barrel and meshed with a first rack, the first rack is meshed with a second gear, the second gear is meshed with a second rack, a cutting blade is arranged at one end of the second rack, and a reset spring is arranged at the other end of the second rack. By rotating the first gear, the reset spring is elastically deformed, then the counter-acting force of the reset spring is utilized to drive the second rack and the cutting blade to reset, so that the tumor tissue is partially cut off by the cutting blade, and then the sampling work is completed.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical equipment, and in particular, relates to a sampling device. Background Art

[0002] Breast cancer is one of the most common malignant tumors in women. It originates from the uncontrolled proliferation of cells in the mammary epithelium or ductal epithelium. The key to preventing breast cancer is to improve lifestyle and conduct regular physical examinations. The risk of breast cancer can be reduced by cultivating scientific eating habits, controlling weight, exercising moderately, limiting alcohol and high-fat food intake, paying attention to breast hygiene, and actively treating benign tumors. The breast cancer sampling device is a medical device specifically used to collect tissue samples from the breasts of patients with suspected or confirmed breast cancer. These devices play a vital role in the diagnosis and treatment of breast cancer because they can help doctors obtain samples of diseased tissue and then determine the presence of cancer cells and their type, grade, and severity through pathological examination.

[0003] After searching, Chinese patent number CN219250269U discloses a breast cancer tumor cell sampling device, which relates to the technical field of medical care tools. This patent includes a gun barrel and a sampling needle. The gun barrel includes a shell, a movable tube and a sampling rod. The outer side of the shell is provided with an operating port and a grip. The operating port is hinged with a handle. The movable tube is provided with a sampling rod. One end face of the sampling rod is provided with a groove. One end of the sampling rod is provided with a sampling needle. The sampling needle includes a fixed tube and a needle. The fixed tube is provided with an extrusion groove. The extrusion groove is provided with an extrusion spring. The fixed tube is provided with a movable rod. The side of the movable rod is provided with a slip ring. The free end of the extrusion spring is fixedly connected to the slip ring. This patent adopts a sampling needle composed of a fixed tube and a needle. An extrusion groove, an extrusion spring and a movable rod are provided in the fixed tube. After the sampling is completed, the dustproof protective cover is covered, and then the sampling needle is removed, and the movable rod is pressed to make the movable rod move along the extrusion groove to quickly push the extracted tumor cells out of the needle.

[0004] However, when the above patent is used, the sampling needle is first punctured into the tumor site, and then the removed tumor tissue is taken out of the body using the sampling groove on the sampling needle. During this process, the nerve tissue around the sampled tumor will be torn, thereby increasing the patient's pain and causing discomfort. Summary of the invention

[0005] In view of the problems in the related art, the present invention proposes a sampling device to overcome the above technical problems existing in the existing related art.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a sampling device, comprising a first protective tube, on which a second protective tube is fixedly installed, a sampling mechanism is arranged inside the first protective tube and the second protective tube, the sampling mechanism comprises a sampling tube arranged inside the first protective tube and the second protective tube, an electric telescopic rod is arranged inside the sampling tube, a sampling needle is fixedly installed on the electric telescopic rod, a first gear is arranged inside the sampling tube, the first gear is meshed with a first rack, the first rack is meshed with a second gear, the second gear is meshed with a second rack, a cutting blade is arranged at one end of the second rack, and a reset spring is arranged at the other end, the second protective tube is provided with a fixing mechanism, and the fixing mechanism is used to maintain the stability of the device.

[0008] Furthermore, the sampling tube is movably installed inside the first protective tube and the second protective tube, a control button is fixedly installed at one end of the electric telescopic rod, the control button is fixedly installed on a fixed plate, the fixed plate is fixedly installed on the first protective tube, and a sampling needle is fixedly installed at the other end of the electric telescopic rod.

[0009] Furthermore, the first gear is rotatably mounted inside the sampling cylinder, and a connecting shaft is fixedly mounted on the first gear. The connecting shaft passes through the sampling cylinder and the first protective cylinder, and is rotatably mounted on the first protective cylinder.

[0010] Furthermore, the first rack is slidably connected inside the sampling barrel, the second gear is rotatably installed inside the sampling barrel, the first rack meshes with one side of the second gear, the other side of the second gear meshes with the second rack, and the second rack is slidably connected inside the sampling barrel.

[0011] Furthermore, a cutting blade is fixedly mounted on one end of the second rack, and one end of a return spring is fixedly mounted on the other end. The other end of the return spring is fixedly mounted on a fixed block. The fixed block is fixedly mounted inside the sampling tube. The sampling needle is provided with a sliding groove, and the cutting blade is slidably connected inside the sliding groove.

[0012] Furthermore, the fixing mechanism comprises a rubber disc arranged on the second protective tube, the rubber disc is slidably connected to the second protective tube, and a rubber suction cup is fixedly mounted on one end of the rubber disc away from the first protective tube, and four rubber suction cups are arranged.

[0013] Furthermore, a switch valve is fixedly installed at one end of the rubber disc close to the first protective tube, and the switch valve is used to control the extraction and injection of air inside the rubber suction cup.

[0014] Furthermore, the surface of the first protective tube is provided with anti-slip threads, and grip rings are fixedly installed on both sides of the first protective tube.

[0015] Furthermore, the first protective tube, the second protective tube, the sampling tube, the sampling needle and the cutting blade can all be made of stainless steel, which is convenient for subsequent cleaning.

[0016] Furthermore, the rubber suction cup is used to be sucked onto the patient's skin to fix the device.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention rotates the first gear to cause elastic deformation of the reset spring, and then uses the reaction force of the reset spring to drive the second rack and the cutting blade to reset, so that the cutting blade can remove part of the tumor tissue and complete the sampling work.

[0019] 2. The present invention starts the switch valve to extract the air inside the rubber suction cup, thereby fixing the rubber suction cup on the patient's skin. When it needs to be removed, it only needs to start the switch valve here to inject outside air into the rubber suction cup to release the fixing effect.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on the following drawings without creative work.

[0022] Figure 1 The three-dimensional structure of the present invention Figure 1 ;

[0023] Figure 2 The three-dimensional structure of the present invention Figure 2 ;

[0024] Figure 3 The three-dimensional structure of the present invention Figure 3 ;

[0025] Figure 4 The three-dimensional structure of the present invention Figure 4 ;

[0026] Figure 5 It is an enlarged view of point A of the present invention;

[0027] Figure 6 The three-dimensional structure of the present invention Figure 5 ;

[0028] Figure 7It is an enlarged view of B of the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. First protective tube; 2. Second protective tube; 3. Sampling tube; 4. Electric telescopic rod; 5. Sampling needle; 6. First gear; 7. First rack; 8. Second gear; 9. Second rack; 10. Cutting blade; 11. Reset spring; 12. Control button; 13. Fixed plate; 14. Connecting shaft; 15. Fixed block; 16. Sliding groove; 17. Rubber plate; 18. Rubber suction cup; 19. Switch valve; 20. Anti-slip thread; 21. Grip ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0032] In the description of the present invention, it is necessary to understand that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention.

[0033] See also Figure 1-Figure 7 As shown, the present invention is a sampling device, comprising a first protective tube 1, on which a second protective tube 2 is fixedly installed, a sampling mechanism is arranged inside the first protective tube 1 and the second protective tube 2, the sampling mechanism comprises a sampling tube 3 arranged inside the first protective tube 1 and the second protective tube 2, an electric telescopic rod 4 is arranged inside the sampling tube 3, a sampling needle 5 is fixedly installed on the electric telescopic rod 4, a first gear 6 is arranged inside the sampling tube 3, the first gear 6 is meshed with a first rack 7, the first rack 7 is meshed with a second gear 8, the second gear 8 is meshed with a second rack 9, a cutting blade 10 is arranged at one end of the second rack 9, and a reset spring 11 is arranged at the other end, the second protective tube 2 is provided with a fixing mechanism, and the fixing mechanism is used to maintain the stability of the device.

[0034] The working principle of a sampling device proposed by the present invention is that the electric telescopic rod 4 is first started to drive the sampling needle 5 to extend to a suitable position, and then the electric telescopic rod 4 is closed. Then, the sampling needle 5 is punctured into the patient's body and slowly moved to the tumor site, and then the first gear 6 is rotated to drive the first rack 7 to move in the direction of the sampling needle 5, and then the second gear 8 is driven to rotate, thereby driving the second rack 9 to move in the direction away from the sampling needle 5, and then driving the cutting blade 10 to move in the direction away from the sampling needle 5. At this time, the reset spring 11 undergoes elastic deformation and maintains a certain tension. Finally, the first gear 6 is stopped from rotating, and the reset spring 11 is used to drive the second rack 9 and the cutting blade 10 to reset, so that the cutting blade 10 can remove part of the tumor tissue, and the removed tumor tissue is left between the cutting blade 10 and the sampling needle 5.

[0035] It is worth noting that when sampling, the device is fixed to the patient's skin surface through a fixing mechanism, so as to maintain stability during sampling and prevent shaking.

[0036] In one embodiment, for the above-mentioned sampling tube 3, the sampling tube 3 is movably installed inside the first protective tube 1 and the second protective tube 2, a control button 12 is fixedly installed at one end of the electric telescopic rod 4, the control button 12 is fixedly installed on the fixed plate 13, the fixed plate 13 is fixedly installed on the first protective tube 1, and a sampling needle 5 is fixedly installed at the other end of the electric telescopic rod 4.

[0037] The working principle of the sampling device proposed by the present invention is that the electric telescopic rod 4 can be activated to extend or retract by pressing the control button 12 .

[0038] In one embodiment, for the above-mentioned first gear 6, the first gear 6 is rotatably installed inside the sampling tube 3, and the first gear 6 is fixedly installed with a connecting shaft 14, which passes through the sampling tube 3 and the first protective tube 1, and is rotatably installed on the first protective tube 1.

[0039] In one embodiment, for the above-mentioned first rack 7, the first rack 7 is slidably connected to the inside of the sampling tube 3, the second gear 8 is rotatably installed inside the sampling tube 3, the first rack 7 is engaged with one side of the second gear 8, and the other side of the second gear 8 is engaged with the second rack 9, and the second rack 9 is slidably connected to the inside of the sampling tube 3.

[0040] In one embodiment, for the above-mentioned second rack 9, a cutting blade 10 is fixedly installed at one end of the second rack 9, and one end of a return spring 11 is fixedly installed at the other end. The other end of the return spring 11 is fixedly installed on a fixed block 15, and the fixed block 15 is fixedly installed inside the sampling tube 3. The sampling needle 5 is provided with a sliding groove 16, and the cutting blade 10 is slidably connected inside the sliding groove 16.

[0041] The working principle of the sampling device proposed by the present invention is that the reset spring 11 drives the second rack 9 and the cutting blade 10 to reset, so that the cutting blade 10 slides along the sliding groove 16, and then a part of the tumor tissue is removed, and the removed tumor tissue is left between the cutting blade 10 and the sampling needle 5 (that is, in the sliding groove 16);

[0042] After sampling is completed, the device is taken out and the connecting shaft 14 is rotated to drive the first gear 6 to rotate, thereby moving the cutting blade 10 away from the sampling needle 5 to expose the sampled tumor tissue. Then, the tumor tissue is moved to a sample tube for storage using tweezers, and the sampler is disinfected and sterilized.

[0043] In one embodiment, for the above-mentioned fixing mechanism, the fixing mechanism includes a rubber disc 17 arranged on the second protective tube 2, the rubber disc 17 is slidably connected to the second protective tube 2, and a rubber suction cup 18 is fixedly installed at one end of the rubber disc 17 away from the first protective tube 1, and four rubber suction cups 18 are provided.

[0044] In one embodiment, for the rubber disc 17 , a switch valve 19 is fixedly installed at one end of the rubber disc 17 close to the first protective tube 1 , and the switch valve 19 is used to control the extraction and injection of air inside the rubber suction cup 18 .

[0045] In one embodiment, for the above-mentioned first protective tube 1 , an anti-slip thread 20 is provided on the surface of the first protective tube 1 , and grip rings 21 are fixedly installed on both sides of the first protective tube 1 .

[0046] In one embodiment, for the first protective tube 1, the first protective tube 1, the second protective tube 2, the sampling tube 3, the sampling needle 5 and the cutting blade 10 can all be made of stainless steel to facilitate subsequent cleaning.

[0047] In one embodiment, for the rubber suction cup 18, the rubber suction cup 18 is used to be sucked onto the patient's skin to fix the device.

[0048] The working principle of the sampling device proposed in the present invention is that before sampling, the rubber suction cup 18 can be placed close to the patient's skin, and then the switch valve 19 is started to extract the air inside the rubber suction cup 18, thereby fixing the rubber suction cup 18 on the patient's skin. When it needs to be removed, it is only necessary to start the switch valve 19 here to inject outside air into the rubber suction cup 18 to release the fixing effect.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The preferred embodiments of the invention disclosed above are only used to help illustrate the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made based on the content of this specification. This specification selects and specifically describes the embodiments in order to better explain the principles and practical applications of the invention, so that those skilled in the art can better understand and use the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sampling device, comprising a first protective tube (1), characterized in that: The first protective tube (1) is fixedly mounted with the second protective tube (2); a sampling mechanism is arranged inside the first protective tube (1) and the second protective tube (2); the sampling mechanism comprises a sampling tube (3) arranged inside the first protective tube (1) and the second protective tube (2); an electric telescopic rod (4) is arranged inside the sampling tube (3); a sampling needle (5) is fixedly mounted on the electric telescopic rod (4); a first gear (6) is arranged inside the sampling tube (3); the first gear (6) is meshed with a first rack (7); the first rack (7) is meshed with a second gear (8); the second gear (8) is meshed with a second rack (9); a cutting blade (10) is arranged at one end of the second rack (9); and a return spring (11) is arranged at the other end; the second protective tube (2) is provided with a fixing mechanism; the fixing mechanism is used to maintain the stability of the device.

2. A sampling device according to claim 1, characterized in that: The sampling tube (3) is movably mounted inside the first protective tube (1) and the second protective tube (2); a control button (12) is fixedly mounted on one end of the electric telescopic rod (4); the control button (12) is fixedly mounted on a fixed plate (13); the fixed plate (13) is fixedly mounted on the first protective tube (1); and a sampling needle (5) is fixedly mounted on the other end of the electric telescopic rod (4).

3. A sampling device according to claim 2, characterized in that: The first gear (6) is rotatably mounted inside the sampling cylinder (3); a connecting shaft (14) is fixedly mounted on the first gear (6); the connecting shaft (14) passes through the sampling cylinder (3) and the first protective cylinder (1), and is rotatably mounted on the first protective cylinder (1).

4. A sampling device according to claim 3, characterized in that: The first rack (7) is slidably connected to the inside of the sampling barrel (3), and the second gear (8) is rotatably installed inside the sampling barrel (3). The first rack (7) is meshed with one side of the second gear (8), and the other side of the second gear (8) is meshed with a second rack (9), and the second rack (9) is slidably connected to the inside of the sampling barrel (3).

5. A sampling device according to claim 4, characterized in that: A cutting blade (10) is fixedly mounted on one end of the second rack (9), and one end of a return spring (11) is fixedly mounted on the other end. The other end of the return spring (11) is fixedly mounted on a fixed block (15). The fixed block (15) is fixedly mounted inside the sampling tube (3). The sampling needle (5) is provided with a sliding groove (16), and the cutting blade (10) is slidably connected inside the sliding groove (16).

6. A sampling device according to claim 1, characterized in that: The fixing mechanism comprises a rubber disc (17) arranged on the second protective tube (2), the rubber disc (17) being slidably connected to the second protective tube (2), and a rubber suction cup (18) being fixedly mounted on one end of the rubber disc (17) away from the first protective tube (1), and four rubber suction cups (18) are provided.

7. A sampling device according to claim 6, characterized in that: A switch valve (19) is fixedly mounted on one end of the rubber disc (17) close to the first protective tube (1), and the switch valve (19) is used to control the extraction and injection of air inside the rubber suction cup (18).

8. A sampling device according to claim 1, characterized in that: The surface of the first protective tube (1) is provided with anti-slip threads (20), and grip rings (21) are fixedly mounted on both sides of the first protective tube (1).

9. A sampling device according to claim 8, characterized in that: The first protective tube (1), the second protective tube (2), the sampling tube (3), the sampling needle (5) and the cutting blade (10) can all be made of stainless steel, which is convenient for subsequent cleaning.

10. A sampling device according to claim 7, characterized in that: The rubber suction cup (18) is used to be sucked onto the patient's skin to fix the device.

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