Pulmonary nodule positioning needle and pulmonary nodule puncture device

Abstract

The utility model discloses a pulmonary nodule positioning needle and a pulmonary nodule puncture device, which comprise a linear needle and a bent needle, the bent needle is formed at the upper end of the linear needle, a bent needle head is formed at the other end of the bent needle, the bent needle head is bent downwards, in one embodiment, the bent needle is in the shape of a disc-shaped vortex, and the bent needle head is bent downwards. The linear needle is tangent to the bent needle, the linear needle and the bent needle are located on the same plane, the bent needle head is located on the innermost ring of the bent needle, in one embodiment, the bent needle is a conical spiral line, the bent needle and the linear needle are vertically distributed, and the bent needle and the linear needle are bent downwards from the center of the spiral line. The positioning needle solves the problems that an existing positioning needle has a sharp end and is prone to injuring the lung and generating pricking pain, the bent needle head is formed in the bent needle, contact between the bent needle head and lung tissue is reduced, and the pain of a patient during positioning is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lung nodule puncture technology, specifically to a lung nodule positioning needle and a lung nodule puncture device. Background Technology

[0002] Existing lung nodule puncture devices typically anchor the puncture site using a positioning hook, and the shape of the positioning hook is generally as follows: Figure 1 As shown, the lung nodule is fixed in position by anchoring multiple evenly distributed hooks. However, the sharp ends of the hooks can easily damage lung tissue and increase patient suffering. Therefore, a lung nodule positioning needle and lung nodule puncture device were designed. The shape of the positioning hook is used to locate the lung nodule without damaging lung tissue and reducing pain. Utility Model Content

[0003] The purpose of this invention is to provide a lung nodule positioning needle and a lung nodule puncture device. By forming the bent needle tip inside the curved needle, the contact between the bent needle tip and the lung tissue is reduced, thereby reducing the patient's pain during positioning.

[0004] This utility model provides the following technical solution: a lung nodule positioning needle, including a straight needle and a curved needle, wherein the curved needle is formed at the upper end of the straight needle and the curved needle is in the form of a disc-shaped vortex, and a bent needle head is formed at the other end of the curved needle, the bent needle head is located at the innermost circle of the curved needle and the bent needle head is bent downward.

[0005] In one embodiment, the curved needle is a disc-shaped vortex, the straight needle is tangent to the curved needle, and the straight needle and the curved needle are on the same plane.

[0006] In one embodiment, the curved needles are horizontally distributed disc-shaped vortices, and the curved needles and straight needles are vertically distributed.

[0007] In one embodiment, the bending needle is a conical spiral, the bending needle and the straight needle are vertically distributed, the bending needle head is located at the uppermost loop of the conical spiral, and is bent downward from the center of the spiral.

[0008] Furthermore, the bent needle has a large bottom diameter and a small top diameter.

[0009] This utility model also provides the following technical solution: a lung nodule puncture device, including a handle, a puncture needle, a jacking needle and the aforementioned positioning needle, wherein the positioning needle is inserted into the puncture needle, the puncture needle is fixed in the handle, a through hole is provided in the center of the handle, the jacking needle is inserted into the through hole and the puncture needle, and a pull rope is connected to the end of the positioning needle, the pull rope being disposed in the puncture needle and the handle.

[0010] To determine the puncture depth, the surface of the puncture needle is engraved with graduations.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are: by forming the bent needle tip inside the curved needle, the contact between the bent needle tip and the lung tissue is reduced, thus reducing the patient's pain during positioning. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of a puncture needle in the prior art;

[0014] Figure 2 This is a structural schematic diagram of Embodiment 1 of the present utility model;

[0015] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0016] Figure 4 This is a structural schematic diagram of Embodiment 3 of this utility model;

[0017] Figure 5 This is a schematic diagram of the lung nodule puncture device of this utility model;

[0018] In the diagram: 1. Positioning needle; 11. Curved needle; 12. Straight needle; 13. Bending needle tip; 2. Pull cord; 3. Puncture needle; 31. Scale; 4. Handle; 5. Ejector pin. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] Please see Figure 2This utility model provides a technical solution: a lung nodule positioning needle, including a straight needle 12 and a curved needle 11. Before use, the curved needle 11 is located inside the puncture needle 3 and is restricted by the puncture needle 3. The curved needle 11 is straight. After the curved needle 11 is pushed out, it begins to bend. The curved needle 11 is formed at the upper end of the straight needle 12. A bent needle head 13 is formed on the other end of the curved needle 11. The bent needle head 13 bends downward and the bending direction is parallel to the straight needle 12. By bending the bent needle head 13 downward, the end of the curved needle 11 is made to face downward, avoiding contact between the end of the curved needle 11 and the lung tissue, thus reducing the patient's pain.

[0022] The curved needle 11 is a disc-shaped vortex. The straight needle 12 is tangent to the curved needle 11 and the straight needle 12 is on the same plane. The bent needle head 13 is located in the innermost circle of the curved needle 11. The curved needle 11 with its disc-shaped vortex is used to locate lung nodules. The bent needle head 13 is located in the innermost circle of the curved needle 11, which reduces the possibility of the bent needle head 13 coming into contact with lung tissue and reduces the stinging sensation caused by the contact between the bent needle head 13 and lung tissue.

[0023] Example 2

[0024] like Figure 3 As shown, in this embodiment, the curved needle 11 is a horizontally distributed disc-shaped vortex, the curved needle 11 and the straight needle 12 are vertically distributed, and the bent needle head 13 is located in the innermost circle of the curved needle 11, which reduces the possibility of contact between the bent needle head 13 and the lung tissue. The bent needle head 13 is bent downward to form a shape, which further reduces the contact between the bent needle head 13 and the lung tissue.

[0025] Example 3

[0026] like Figure 4 As shown, the curved needle 11 is a conical spiral. The curved needle 11 and the straight needle 12 are vertically distributed. The bent needle head 13 is located at the top of the conical spiral and is bent downward from the center of the spiral. The bent needle head 13 is bent downward into the interior of the curved needle 11 and is located inside the conical spiral, which avoids the bent needle head 13 from contacting the lung tissue and reduces the patient's pain.

[0027] The curved needle 11 has a large bottom diameter and a small top diameter, and the cone has a large bottom diameter and a small top diameter, which increases the contact area between the bottom surface and the lung tissue. In addition, the curved needle 11 is larger in volume, making the positioning more stable and less prone to displacement.

[0028] like Figure 5As shown, this utility model also provides a technical solution: a lung nodule puncture device, including a handle 4, a puncture needle 3, a push needle 5 and the aforementioned positioning needle 1. Before use, the positioning needle 1 is inserted into the puncture needle 3. The positioning needle 1 is made of shape memory metal. The positioning needle 1 is compressed inside the puncture needle 3 and is straight overall. The puncture needle 3 is fixed inside the handle 4. A through hole is opened in the center of the handle 4. The push needle 5 is inserted into the through hole and the puncture needle 3. The end of the positioning needle 1 is also connected to a pull rope 2. The pull rope 2 is set inside the puncture needle 3 and the handle 4. By first moving the handle 4, the puncture needle 3 is punctured into the lung. After the puncture is in place, the push needle 5 is pushed into the puncture needle 3 to push out the positioning needle 1. After being pushed out, the positioning needle 1 bends and deforms. The positioning needle 1 is embedded in the lung tissue to locate the puncture position. Then the lung nodule puncture device is pulled out. At this time, one end of the pull rope 2 will extend out of the body along with the lung nodule puncture device.

[0029] The surface of the puncture needle 3 is engraved with a scale 31, which is used to control the puncture depth of the puncture needle 3, thereby improving puncture efficiency.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lung nodule localization needle, comprising a straight needle and a curved needle, characterized in that: The curved needle is formed on the upper end of the straight needle. The curved needle is in the shape of a disc-shaped vortex. A bent needle head is formed on the other end of the curved needle. The bent needle head is located in the innermost circle of the curved needle and is bent downward.

2. The lung nodule locating needle according to claim 1, characterized in that: The straight needle and the curved needle are tangent to each other, and the straight needle and the curved needle are on the same plane.

3. The lung nodule locating needle according to claim 1, characterized in that: The curved needles are horizontally distributed disc-shaped vortices, while the curved needles and straight needles are vertically distributed.

4. The lung nodule locating needle according to claim 1, characterized in that: The curved needle is a conical spiral, and the curved needle and the straight needle are distributed vertically. The bending needle head is located at the uppermost loop of the conical spiral and is bent downwards from the center of the spiral.

5. The lung nodule locating needle according to claim 4, characterized in that: The bent needle has a large bottom diameter and a small top diameter.

6. A lung nodule puncture device, characterized in that: The device includes a handle, a puncture needle, a push pin, and a positioning needle as described in any one of claims 1 to 5. The positioning needle is inserted into the puncture needle, the puncture needle is fixed in the handle, the handle has a through hole at its center, the push pin is inserted into the through hole and the puncture needle, and the end of the positioning needle is connected to a pull rope, which is disposed in the puncture needle and the handle.

7. The lung nodule puncture device according to claim 6, characterized in that: The surface of the puncture needle is engraved with graduations.

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