Breast puncture positioning needle

Abstract

The utility model discloses a breast puncture positioning needle belongs to medical instrument technical field. A breast puncture positioning needle, including needle tube and insert in the needle core of needle tube needle way, still include: needle column, fixedly connected on the needle tube, install the needle cover on the needle core, the needle cover is the tubular structure of being equipped with the cavity and is equipped with the open mouth at the bottom, the top fixed connection of needle core is in the cavity of needle cover, the utility model discloses through pressing button, makes the buckling of the bending part and the bending part of card slot separation, can remove the fixing of needle cover and needle column to the spring elasticity effect through compression, can provide the uniform propelling force to needle cover, make needle cover fast stable and pop up from needle column, and then the medical staff will pull out needle core from the needle way in needle tube, save time and effort, greatly reduced because the risk of producing the shaking and displacement of positioning needle due to the excessive force or uneven force, thereby help to improve the use accuracy of positioning needle.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a breast puncture positioning needle. Background Technology

[0002] A puncture localization needle is a medical device specifically designed to help accurately locate lesions in the body under image guidance. It is widely used in various biopsy or treatment processes that require precise guidance, and is particularly important in the detection of lesions in the breast, lungs and other areas. Its main purpose is to help doctors accurately reach the lesion site for diagnosis (such as tissue sampling) or to prepare for subsequent treatment.

[0003] Currently, when performing biopsy on patients, appropriate imaging techniques are usually required, such as CT, ultrasound, or mammography. Under real-time image monitoring, the optimal puncture point and needle angle are determined, and the puncture positioning needle is inserted to the edge of the lesion to provide precise guidance for the subsequent biopsy needle. Then, the needle core is removed from the positioning needle. The function of the needle core is to prevent the needle path inside the positioning needle from being blocked by tissue, blood, or other substances, ensuring that the needle path of the positioning needle is unobstructed. Then, the biopsy needle is inserted into the positioning needle and reaches the lesion site along the needle path of the positioning needle to collect tissue samples.

[0004] However, the positioning needle and the needle core are mostly tightly connected and fixed by a plastic tube at the end of the positioning needle and a plastic cap at the end of the needle core. At the same time, the plastic tube and plastic cap also make it convenient for medical staff to handle the thinner positioning needle. In actual use, when medical staff need to pull out the needle core, they have to use force to pull the plastic cap to detach it from the plastic tube before they can pull out the needle core. However, because the plastic components are tightly connected, it is not convenient for medical staff to pull out the needle core. In addition, it is not easy for medical staff to accurately control the force during this process. There is a high risk that the positioning needle may shake or shift due to excessive or uneven force, thus affecting the accuracy of the positioning needle. Utility Model Content

[0005] The purpose of this invention is to solve the problem that current puncture positioning needles are inconvenient for medical personnel to remove the needle core, which leads to the risk of the positioning needle shaking and displacement, thus affecting the accuracy of the positioning needle. Therefore, a new breast puncture positioning needle is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A breast biopsy positioning needle includes a needle tube and a needle core inserted into the needle tube channel. It also includes a needle post fixedly connected to the needle tube, wherein a needle cap is mounted on the needle core. The needle cap is a tubular structure with a cavity and an open bottom. The top end of the needle core is fixedly connected to the cavity of the needle cap. The top end of the needle post is fixedly connected to a top ring communicating with the needle tube. A compression spring is sleeved on the needle core, wherein the top end of the compression spring is fixedly connected to the cavity of the needle cap. When the needle core is inserted into the needle tube channel, the top ring inserts into the cavity of the needle cap and compresses the compression spring, causing the bottom surface of the needle cap to abut against the top surface of the needle post. The needle post is provided with a locking part for fixing and disassembling the abutting needle cap and needle post.

[0008] To facilitate quick assembly and disassembly of the needle cap and needle post, preferably, the locking part includes a buckle fixedly connected to the bottom of the needle cap, and the top surface of the needle post has a slot. When the top ring is inserted into the cavity of the needle cap, the buckle engages in the slot. The needle post is provided with a quick-release mechanism for disengaging the buckle from the slot.

[0009] To enable the pin to spring up quickly, the quick-release component further includes a button. The pin has a groove that communicates with the slot. A push plate is slidably installed in the groove. The button is fixedly connected to one end of the push plate. The other end of the push plate is designed with an angled surface and abuts against the angled surface of the buckle.

[0010] To further limit and guide the push plate, a limiting block is fixedly connected to the bottom of the push plate, and the limiting block is slidably connected in the groove.

[0011] To locate the needle post, preferably, a guide rod is fixedly connected to the bottom of the needle cover, and the guide rod is conical in shape. A guide hole is opened on the top surface of the needle post, and the guide rod is inserted into the guide hole.

[0012] To guide the needle core, preferably, a guide groove is provided through the top ring, and the guide groove is connected to the needle channel of the needle tube.

[0013] To ensure that the needle core is smoothly inserted into the needle channel of the needle tube, the guide groove is further shaped as a frustum.

[0014] To facilitate the handling of the needle, preferably, the surface of the needle cover has an arc-shaped surface, and the arc-shaped surface is symmetrically arranged along the axis of the needle cover.

[0015] To facilitate medical personnel in determining the depth of the positioning needle insertion into the human body, preferably, the surface of the needle tube is provided with multiple scale lines, and the multiple scale lines are equidistantly arranged on the circumference of the needle tube.

[0016] To assist medical personnel in accurately inserting needles, preferably, a positioning sleeve is fitted onto the needle tube, and the positioning sleeve is interference-fitted with the scale line.

[0017] Compared with the prior art, this utility model provides a breast puncture positioning needle, which has the following beneficial effects:

[0018] 1. This breast puncture positioning needle, with its needle column and cap, allows medical staff to easily handle and operate thinner needle tubes and needle cores. Furthermore, the combination of buckles and slots allows for quick fixation of the needle cap and needle column, preventing the needle core from easily falling out of the needle tube and enabling more secure filling and sealing of the needle tract.

[0019] 2. This breast aspiration positioning needle, by pressing the button, separates the bent part of the buckle from the bent part of the groove, which can release the fixation of the needle cap and needle post. Through the elastic force of the compression spring, it can provide a uniform pushing force to the needle cap, so that the needle cap can quickly and stably pop off the needle post. This makes it easier for medical staff to pull the needle core out of the needle tube, saving time and effort. It greatly reduces the risk of the positioning needle shaking and displacement caused by excessive or uneven force, thus helping to improve the accuracy of the positioning needle.

[0020] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model solves the problem that with current puncture positioning needles, it is inconvenient for medical personnel to pull out the needle core inside, which leads to the risk of the positioning needle shaking and displacement, thus affecting the accuracy of the positioning needle. Attached Figure Description

[0021] Figure 1 This is an isometric structural diagram of a breast puncture positioning needle proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a breast puncture positioning needle with its cap popped open, as proposed in this utility model.

[0023] Figure 3 An exploded view of a breast biopsy positioning needle proposed in this utility model;

[0024] Figure 4 This is a partial exploded view of a breast biopsy positioning needle proposed in this utility model;

[0025] Figure 5 This is a partial cross-sectional schematic diagram of a breast biopsy positioning needle proposed in this utility model.

[0026] In the diagram: 1. Needle tube; 2. Needle core; 3. Needle post; 4. Needle cap; 5. Top ring; 51. Guide groove; 6. Compression spring; 7. Button; 71. Push plate; 72. Buckle; 73. Slot; 74. Groove; 75. Limiting block; 8. Guide rod; 81. Guide hole; 9. Arc-shaped surface; 11. Scale line; 12. Positioning sleeve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Example:

[0030] Reference Figures 1-5This utility model provides a breast puncture positioning needle, including a needle tube 1 and a needle core 2 inserted into the needle channel of the needle tube 1. The surface of the needle tube 1 is provided with multiple scale lines 11, which are equidistantly arranged on the circumference of the needle tube 1. The number of scale lines 11 is 4 to 8, preferably 6 in this positioning needle, and the interval between each scale line 11 is 1 cm. These scale lines 11 can help medical personnel determine the depth of the positioning needle insertion into the human body. A positioning sleeve 12 is fitted on the needle tube 1, and the positioning sleeve 12 is interference-fitted with the scale lines 11. By sliding the positioning sleeve 12 to the appropriate scale line 11, it can assist medical personnel in accurately inserting the needle to the required depth. In addition, the positioning sleeve 12 is made of medical silicone. It also includes: a needle column 3, which is fixedly connected to the needle tube 1. A needle cap 4 is installed on the needle core 2. The needle cap 4 is a tubular structure with a cavity and an open end. The top of the needle core 2 is fixedly connected to the cavity of the needle cap 4. The surface of the needle cap 4 has an arc-shaped surface 9, which is symmetrically arranged along the axis of the needle cap 4. The arc-shaped surface 9 design facilitates the handling of the needle cap 4 by medical personnel. The top of the needle column 3 is fixedly connected to a top ring 5 that communicates with the needle tube 1. A guide groove 51 is opened through the top ring 5. The guide groove 51 communicates with the needle channel of the needle tube 1. The guide groove 51 is truncated cone-shaped and can guide the needle core 2 so that the needle core 2 can be quickly inserted into the needle channel of the needle tube 1. A compression spring 6 is sleeved on the needle core 2. The top of the compression spring 6 is fixedly connected to the cavity of the needle cap 4. When the needle core 2 is inserted into the needle channel of the needle tube 1, the top ring 5 will insert into the cavity of the needle cap 4 and compress the compression spring 6, so that the bottom surface of the needle cap 4 abuts against the top surface of the needle column 3. The needle column 3 is provided with a locking part for fixing and separating the abutting needle cap 4 and needle column 3.

[0031] Specifically, during use, the needle column 3 and needle cap 4 facilitate medical personnel in handling and operating the thinner needle tube 1 and needle core 2. The locking mechanism and compression spring 6 work together to quickly secure the needle cap 4 and needle column 3, preventing the needle core 2 from easily detaching from the needle tube 1. This allows for more stable filling and sealing of the needle channel in the needle tube 1. The mechanism also allows for quick release of the needle cap 4 and needle column 3. The compression spring 6 provides a uniform pushing force to the needle cap 4, causing it to quickly and stably spring off the needle column 3. This facilitates the removal of the needle core 2 from the needle channel in the needle tube 1, saving time and effort. It significantly reduces the risk of the positioning needle wobbling or shifting due to excessive or uneven force, thus improving the accuracy of the positioning needle.

[0032] The locking part includes a buckle 72 fixedly connected to the bottom of the needle cover 4, and a slot 73 is provided on the top surface of the needle post 3. When the top ring 5 is inserted into the cavity of the needle cover 4, the buckle 72 is engaged in the slot 73. The needle post 3 is provided with a quick-release member for disengaging the buckle 72 from the slot 73.

[0033] Specifically, during use, when the needle core 2 is inserted into the needle channel of the needle tube 1, the top ring 5 inserts into the cavity of the needle cover 4 and compresses the compression spring 6, simultaneously causing the buckle 72 to insert into the slot 73. The buckle 72 is bent by the inner wall of the slot 73. When the bottom surface of the needle cover 4 abuts against the top surface of the needle post 3, the buckle 72 engages in the slot 73, which can quickly fix the needle cover 4 and the needle post 3. Furthermore, through the quick-release mechanism, the bent part of the buckle 72 can also be aligned with the bend of the slot 73. The folding separation allows the buckle 72 to disengage from the limit of the slot 73, releasing the fixation on the needle cap 4 and needle post 3. The elastic force of the compression spring 6 provides a uniform pushing force to the needle cap 4, allowing the needle cap 4 to quickly and stably spring off the needle post 3. This makes it easier for medical personnel to pull the needle core 2 out of the needle channel of the needle tube 1, saving time and effort. It also greatly reduces the risk of the positioning needle shaking and displacement caused by excessive or uneven force, thus helping to improve the accuracy of the positioning needle.

[0034] The quick-release component includes a button 7, a groove 74 on the pin post 3 that communicates with the slot 73, a push plate 71 that is slidably installed in the groove 74, the button 7 is fixedly connected to one end of the push plate 71, the other end of the push plate 71 is designed with a bevel and abuts against the bevel of the buckle 72, and a limit block 75 is fixedly connected to the bottom of the push plate 71, the limit block 75 is slidably connected in the groove 74.

[0035] Specifically, during use, pressing button 7 can drive push plate 71 to push buckle 72, causing the bent part of buckle 72 to separate from the bent part of slot 73, thereby releasing the fixation of needle cap 4 and needle post 3. The compression spring 6 can then quickly lift needle cap 4 off needle post 3, making it easier for medical personnel to remove needle core 2 from needle channel of needle tube 1. Furthermore, through the cooperation of limit block 75 and groove 74, push plate 71 can be limited and guided to prevent push plate 71 from disengaging from groove 74.

[0036] A guide rod 8 is fixedly connected to the bottom of the needle cap 4, and the guide rod 8 is in the shape of a cone. A guide hole 81 is opened on the top surface of the needle column 3, and the guide rod 8 is inserted into the guide hole 81.

[0037] Specifically, the guide rod 8 and guide hole 81 are used to position the needle post 3 so that the buckle 72 can be smoothly inserted into the slot 73.

[0038] Working principle: During use, when the needle core 2 needs to be inserted into the needle channel of the needle tube 1, the top ring 5 will be inserted into the cavity of the needle cover 4 and compress the compression spring 6. At the same time, the buckle 72 will be inserted into the slot 73. The buckle 72 will be bent by the inner wall of the slot 73. When the bottom surface of the needle cover 4 abuts against the top surface of the needle column 3, the buckle 72 will be engaged in the slot 73. At the same time, the inclined surface of the buckle 72 will press against the inclined surface of the push plate 71, which can quickly fix the needle cover 4 and the needle column 3, so that the needle core 2 will not fall out of the needle tube 1.

[0039] Furthermore, during use, the optimal puncture point and needle insertion angle are determined using imaging technology, and the needle tube 1 is inserted to the edge of the lesion. When it is necessary to remove the needle core 2, pressing the button 7 can drive the push plate 71 to push the buckle 72, causing the bent part of the buckle 72 to separate from the bent part of the slot 73, thus releasing the fixation of the needle cover 4 and the needle column 3. At this time, the elasticity of the compression spring 6 can provide a uniform pushing force to the needle cover 4, allowing the needle cover 4 to quickly and stably spring up from the needle column 3, thereby facilitating medical personnel to remove the needle core 2 from the needle channel of the needle tube 1. This saves time and effort and greatly reduces the risk of the positioning needle shaking and displacement due to excessive or uneven force, thereby helping to improve the accuracy of the positioning needle.

[0040] After the needle core 2 is removed, the biopsy needle can be inserted into the needle channel of the needle tube 1, and the tissue sample can be taken from the lesion site along the needle channel of the needle tube 1.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A breast puncture positioning needle comprising a needle tube (1) and a needle core (2) inserted into the needle channel of the needle tube (1), characterized in that, Also includes: The needle column (3) is fixedly connected to the needle tube (1). The needle core (2) is equipped with a needle cap (4), which is a tubular structure with a cavity and an open end. The top of the needle core (2) is fixedly connected to the cavity of the needle cap (4), and the top of the needle column (3) is fixedly connected to a top ring (5) that communicates with the needle tube (1). A compression spring (6) is sleeved on the needle core (2). The top end of the compression spring (6) is fixedly connected to the cavity of the needle cover (4). When the needle core (2) is inserted into the needle channel of the needle tube (1), the top ring (5) will be inserted into the cavity of the needle cover (4) and compress the compression spring (6), so that the bottom surface of the needle cover (4) abuts against the top surface of the needle post (3). The needle post (3) is provided with a locking part for fixing and separating the abutting needle cover (4) and needle post (3).

2. The breast puncture positioning needle according to claim 1, wherein, The locking part includes a buckle (72) fixedly connected to the bottom of the needle cover (4), and a slot (73) is provided on the top surface of the needle post (3). When the top ring (5) is inserted into the cavity of the needle cover (4), the buckle (72) is engaged in the slot (73), and the needle post (3) is provided with a quick-release component for disengaging the buckle (72) from the slot (73).

3. The breast puncture positioning needle according to claim 2, wherein, The quick-opening component includes a button (7), and the pin post (3) has a groove (74) that communicates with the slot (73). A push plate (71) is slidably installed in the groove (74). The button (7) is fixedly connected to one end of the push plate (71). The other end of the push plate (71) is designed with a slope and abuts against the slope of the buckle (72).

4. The breast puncture positioning needle according to claim 3, wherein, The bottom of the push plate (71) is fixedly connected to a limiting block (75), which is slidably connected in the groove (74).

5. The breast puncture positioning needle according to claim 1, wherein, The bottom of the needle cap (4) is fixedly connected to a guide rod (8), and the guide rod (8) is in the shape of a cone. The top surface of the needle column (3) is provided with a guide hole (81), and the guide rod (8) is inserted into the guide hole (81).

6. The breast localization needle of claim 1, wherein, A guide groove (51) is provided through the top ring (5), and the guide groove (51) is connected to the needle channel of the needle tube (1).

7. A breast biopsy positioning needle according to claim 6, characterized in that, The guide groove (51) is truncated cone in shape.

8. A breast biopsy positioning needle according to claim 1, characterized in that, The needle cap (4) has an arc-shaped surface (9) on its surface, and the arc-shaped surface (9) is arranged symmetrically along the axis of the needle cap (4).

9. A breast biopsy positioning needle according to claim 1, characterized in that, The surface of the needle tube (1) is provided with multiple scale lines (11), and the multiple scale lines (11) are arranged at equal intervals on the circumferential surface of the needle tube (1).

10. A breast aspiration positioning needle according to claim 1, characterized in that, A positioning sleeve (12) is fitted on the needle tube (1), and the positioning sleeve (12) is interference-fitted with the scale line (11).

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