Pulmonary nodule localization and aspiration needle

Abstract

The utility model relates to puncture needle technical field provides a kind of lung nodule positioning puncture needle, including puncture needle body and positioning needle body, puncture needle body is arranged in the inside of positioning needle body, positioning needle body is used to be arranged in positioning line, puncture needle body tip inner wall is equipped with protective film, sampling mechanism is equipped in the inside of puncture needle body in protective film inboard, sampling mechanism includes sampling block, tension bar and blade, tension bar is arranged in the inside of puncture needle body, puncture needle body one end is equipped with puncture handle, tension bar is assembled and connected in one end in, tension bar other end penetrates puncture handle and extends in outside, tension bar is equipped with sampling handle in one end in outside, sampling block outer wall is equipped with multiple sampling grooves, blade is equipped with multiple and is arranged in one side of sampling groove. The utility model can be realized in the positioning puncture needle into positioning line while carrying out focus sampling, save the labor of separate sampling time, avoid the repeated insertion and extraction of sampling needle to the problem of aggravating the harm to patient.

Description

Technical Field

[0001] This utility model relates to the field of puncture needle technology, and in particular to a puncture needle for locating lung nodules. Background Technology

[0002] Early-stage lung cancer, precancerous lesions, or suspected early-stage lung cancer nodules are often small in size and located deep within the lung tissue, making them difficult to locate during thoracoscopic surgery. CT-guided localization needles are currently the mainstream method for locating lung nodules, relying primarily on a hook at the tip of the needle to grip adjacent lung tissue for positioning. In existing techniques, a push tube within the localization needle is typically used to extend the hook and release it within the patient's body to establish localization.

[0003] However, in existing technologies, sampling is a crucial step in localization puncture. Its role is not only to diagnose diseases, but also to optimize surgical plans based on the sampled structures, reducing unnecessary interventions and damage. Sampling is usually performed before or after localization puncture, thus requiring additional sampling punctures outside of the localization puncture procedure, increasing the harm to patients from repeated needle insertion and removal. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art where additional sampling punctures are usually performed outside of the positioning puncture step, increasing the harm to the patient caused by repeated needle insertion and removal.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lung nodule localization puncture needle, comprising a puncture needle body and a positioning needle body, wherein the puncture needle body is inserted inside the positioning needle body, and a positioning line is inserted inside the positioning needle body. A protective membrane is provided on the inner wall of the tip of the puncture needle body, and a sampling mechanism is provided inside the puncture needle body on the inner side of the protective membrane. The sampling mechanism includes a sampling block, a pull bar, and a blade. The pull bar is inserted inside the puncture needle body, and a puncture handle is provided at one end of the puncture needle body. The inner end of the pull bar is assembled and connected to the sampling block, and the other end of the pull bar passes through the puncture handle and extends outward. A sampling handle is provided at the outer end of the pull bar. Multiple sampling grooves are provided on the outer wall of the sampling block, and multiple blades are provided and disposed on one side of the sampling grooves.

[0006] In a preferred embodiment, the sampling block is configured in a hemispherical shape, and multiple sampling slots are provided and evenly distributed. The blade is disposed on one side of the sampling slot. By configuring the sampling block in a hemispherical shape, the pressure is uniform when the sampling block comes into contact with the lung tissue, thus avoiding additional damage.

[0007] In a preferred embodiment, the sampling slot is provided with a feed slot on the side away from the blade, and a partition strip is provided on the sampling block between the feed slot and the sampling slot. The feed slot creates a height difference between the blade and the sampling slot for sampling.

[0008] In a preferred embodiment, the end faces of each sampling slot are not interconnected, and the partition strip extends to the end face of the sampling slot. The partition strip facilitates the retention of the sampled lesion tissue in the sampling slot and prevents it from falling off.

[0009] In a preferred embodiment, the protective film is a hemispherical membrane structure adapted to the sampling block, and a cross groove is provided at the center of the protective film. The cross groove facilitates the sampling block to pass through the protective film, achieving the effect of taking it out and storing it.

[0010] In a preferred embodiment, the puncture handle is provided with a groove for the pull bar to pass through, and a first magnetic piece is provided at the outer end of the groove. The sampling handle is provided with a second magnetic piece that is mutually repelled by the first magnetic piece. The mutual repulsion between the first magnetic piece and the second magnetic piece ensures that, in the initial state, the pull bar pulls the sampling block to retract into the puncture needle body at the inner end. Only when sampling is performed can the sampling block be pushed out by pushing the sampling handle.

[0011] In a preferred embodiment, a locking block is provided on the outside of the puncture handle, and the sampling handle is rotatably engaged with the locking block.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This invention allows for random sampling of the lesion location using a sampling block at the tip of the puncture needle, near the lesion site after the needle body is inserted into the positioning needle. Before sampling, the puncture needle is advanced to the lesion location. During this process, the sampling block is located inside the protective membrane, and its sidewall slides against the sidewall of the puncture needle, preventing lung tissue from directly entering the puncture needle and causing additional damage. Upon reaching the sampling position, the sampling handle can be pushed, causing the pull bar to push the sampling block out of the protective membrane, positioning the sampling groove outside the tip of the puncture needle. At this point, the sampling handle can be rotated... When the blade rotates, it can scrape a portion of the lesion tissue into the sampling slot. After sampling, the pull bar will be pulled into the puncture needle body and reset to the inside of the protective membrane. After completing the puncture needle body operation steps, the puncture needle body is pulled out from the positioning needle body. After pulling it out, the pull bar is pushed again to move the sampling block out of the front end of the puncture needle body, exposing the lesion tissue in the sampling slot, which is then easily removed by the staff. This step can achieve lesion sampling at the same time as the positioning puncture needle is inserted into the positioning line, saving labor when sampling separately, and avoiding the problem of repeated insertion and removal of the sampling needle, which would aggravate the harm to the patient. Attached Figure Description

[0014] Figure 1 A schematic diagram of the puncture needle body and the positioning needle body of a lung nodule localization puncture needle provided by this utility model;

[0015] Figure 2 A schematic diagram of the internal structure of a puncture needle for locating lung nodules provided by this utility model;

[0016] Figure 3 A schematic diagram of a sampling block for a lung nodule localization puncture needle provided by this utility model;

[0017] Figure 4 This utility model provides a schematic diagram of the assembly structure of the puncture handle and pull bar of a lung nodule positioning puncture needle.

[0018] Legend:

[0019] 1. Puncture needle body; 2. Positioning needle body; 3. Protective membrane; 4. Puncture handle; 5. Pull strip; 6. Sampling block; 7. Blade; 8. Sampling handle; 9. Sampling groove; 10. Feed groove; 11. Partition strip; 12. Cross groove; 13. Pull groove; 14. First magnetic sheet; 15. Second magnetic sheet; 16. Locking block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a lung nodule positioning puncture needle, including a puncture needle body 1 and a positioning needle body 2. The puncture needle body 1 is inserted inside the positioning needle body 2. The positioning needle body 2 is used to insert a positioning line. The inner wall of the tip of the puncture needle body 1 is provided with a protective film 3. The puncture needle body 1 inside the protective film 3 is provided with a sampling mechanism. The sampling mechanism includes a sampling block 6, a pull bar 5 and a blade 7. The pull bar 5 is inserted inside the puncture needle body 1. One end of the puncture needle body 1 is provided with a puncture handle 4. The inner end of the pull bar 5 is assembled and connected to the sampling block 6. The other end of the pull bar 5 passes through the puncture handle 4 and extends outward. The outer end of the pull bar 5 is provided with a sampling handle 8. The outer wall of the sampling block 6 is provided with multiple sampling grooves 9. Multiple blades 7 are provided and are provided on one side of the sampling grooves 9.

[0022] like Figure 1-4As shown, the sampling block 6 is configured in a hemispherical shape, and multiple sampling slots 9 are provided and evenly distributed. The blade 7 is located on one side of the sampling slot 9. By configuring the sampling block 6 in a hemispherical shape, the pressure is uniform when the sampling block 6 comes into contact with the lung tissue, thus avoiding additional damage.

[0023] like Figure 1-4 As shown, a feed trough 10 is provided on the side of the sampling groove 9 away from the blade 7. A partition strip 11 is provided on the sampling block 6 between the feed trough 10 and the sampling groove 9. Through the feed trough 10, a height difference is formed between the blade 7 and the sampling groove 9 for sampling.

[0024] like Figure 1-4 As shown, the end faces of each sampling slot 9 are not connected to each other. The partition strip 11 extends to the end face of the sampling slot 9. The partition strip 11 facilitates the retention of the sampled lesion tissue in the sampling slot 9 and prevents it from falling off.

[0025] like Figure 1-4 As shown, the protective film 3 is a hemispherical membrane structure that is adapted to the sampling block 6. A cross groove 12 is provided at the center of the protective film 3. The cross groove 12 facilitates the sampling block 6 to pass through the protective film 3, so as to achieve the effect of taking out and storing it.

[0026] like Figure 1-4 As shown, the puncture handle 4 is provided with a groove 13 for the pull bar 5 to pass through. The outer end of the groove 13 is provided with a first magnetic piece 14. The sampling handle 8 is provided with a second magnetic piece 15 that is mutually repelled by the first magnetic piece 14. By the mutual repulsion between the first magnetic piece 14 and the second magnetic piece 15, the pull bar 5 is initially positioned inside, which pulls the sampling block 6 to retract into the puncture needle body 1. Only when sampling is performed can the sampling block 6 be pushed out by pushing the sampling handle 8.

[0027] like Figure 1-4 As shown, a locking block 16 is provided on the outside of the puncture handle 4, and the sampling handle 8 is rotated and engaged with the locking block 16.

[0028] Working principle: When the puncture needle 1 is inserted into the positioning needle 2 near the lesion, the sampling block 6 at the front end of the puncture needle 1 can be used to randomly sample the lesion. Before sampling, the puncture needle 1 is advanced to the lesion position. During this process, the sampling block 6 is located inside the protective membrane 3, and the sidewall of the sampling block 6 slides and adheres to the sidewall of the puncture needle 1, preventing lung tissue from directly entering the puncture needle 1 during movement and causing additional damage. When the sampling position is reached, the sampling handle 8 can be pushed, which drives the pull strip 5 to push the sampling block 6 out of the protective membrane 3, so that the sampling groove 9 is outside the front end of the puncture needle 1. At this time, the sampling handle can be pushed to the lesion. 8. Rotate the blade 7. During rotation, the blade 7 can scrape a portion of the lesion tissue into the sampling groove 9. After sampling, the pull bar 5 will be pulled into the puncture needle body 1 and reset to the inside of the protective membrane 3. After completing the operation steps of the puncture needle body 1, the puncture needle body 1 will be pulled out from the positioning needle body 2. After pulling it out, push the pull bar 5 again to move the sampling block 6 out of the front end of the puncture needle body 1, exposing the lesion tissue in the sampling groove 9, which is convenient for the staff to remove. This step can achieve sampling of the lesion site while inserting the positioning puncture needle into the positioning line, saving the labor of separate sampling and avoiding the problem of repeated insertion and removal of the sampling needle, which aggravates the harm to the patient.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A pulmonary nodule localization puncture needle, comprising a puncture needle body (1) and a localization needle body (2), wherein the puncture needle body (1) is inserted inside the localization needle body (2), and a localization line is inserted inside the localization needle body (2), characterized in that, The inner wall of the tip of the puncture needle body (1) is provided with a protective film (3). A sampling mechanism is provided inside the puncture needle body (1) inside the protective film (3). The sampling mechanism includes a sampling block (6), a pull bar (5) and a blade (7). The pull bar (5) is inserted inside the puncture needle body (1). One end of the puncture needle body (1) is provided with a puncture handle (4). The pull bar (5) is installed at one end and is connected to the sampling block (6). The other end of the pull bar (5) passes through the puncture handle (4) and extends outward. The outer end of the pull bar (5) is provided with a sampling handle (8). The outer wall of the sampling block (6) is provided with multiple sampling grooves (9). Multiple blades (7) are provided and are located on one side of the sampling grooves (9).

2. The lung nodule localization puncture needle according to claim 1, characterized in that: The sampling block (6) is arranged in a hemispherical structure, and the sampling slots (9) are provided in multiple and evenly distributed. The blade (7) is arranged on one side of the sampling slots (9).

3. The lung nodule localization puncture needle according to claim 2, characterized in that: The sampling groove (9) is provided with a feeding groove (10) on the side away from the blade (7), and a partition strip (11) is provided on the sampling block (6) between the feeding groove (10) and the sampling groove (9).

4. The lung nodule localization puncture needle according to claim 3, characterized in that: The end faces of each of the sampling slots (9) are not connected to each other, and the partition strip (11) extends to the end face of the sampling slot (9).

5. The lung nodule localization puncture needle according to claim 1, characterized in that: The protective membrane (3) is a hemispherical membrane structure adapted to the sampling block (6), and a cross groove (12) is provided at the center of the protective membrane (3).

6. The lung nodule localization puncture needle according to claim 1, characterized in that: The puncture handle (4) is provided with a groove (13) for passing through the pull bar (5), and a first magnetic piece (14) is provided at the outer end of the groove (13). The sampling handle (8) is provided with a second magnetic piece (15) that is mutually repelled by the first magnetic piece (14).

7. A lung nodule localization puncture needle according to claim 6, characterized in that: The puncture handle (4) is provided with a locking block (16) on the outside, and the sampling handle (8) is rotatably engaged with the locking block (16).

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