Pulmonary nodule positioning device and pulmonary nodule puncture needle

Abstract

The invention provides a pulmonary nodule positioning device and a pulmonary nodule puncture needle. The pulmonary nodule positioning device comprises a positioning mechanism and a puncture mechanism, and the puncture mechanism can penetrate through the positioning mechanism and move; the positioning mechanism comprises a positioning seat, a limiting seat, a first connecting column, a second connecting column, a limiting belt and a limiting groove, and after the limiting belt is connected with the limiting groove in a clamped mode, the puncture mechanism in the limiting seat can be limited. When the puncture mechanism penetrates through the limiting seat to reach a proper position, the limiting belt and the limiting groove are tightly clamped, the position of the puncture mechanism can be accurately fixed, deviation in the puncture process is effectively avoided, and therefore the positioning accuracy is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, and in particular to a lung nodule positioning device and a lung nodule puncture needle. BACKGROUND

[0002] In the diagnosis and treatment of lung diseases, accurate positioning and biopsy of lung nodules are crucial. Accurate acquisition of lung nodule tissue samples is of decisive significance for determining the nature of the disease and developing subsequent treatment plans. However, the existing lung nodule positioning and puncture technology has many problems to be solved.

[0003] Currently, lung nodule positioning mainly relies on imaging methods such as CT-guided positioning. Although CT can provide detailed image information of the lungs, in actual operation, due to factors such as respiratory movement and patient position change, the accuracy of positioning is disturbed to some extent. Moreover, CT-guided positioning usually needs to be performed in a specific device environment, and the operation process is relatively complex, time-consuming, and increases the discomfort of patients and medical costs.

[0004] In the puncture segment, the traditional puncture needle lacks precise positioning assistance, and the puncture process mainly relies on the experience and hand feeling of the doctor. This results in that the accuracy and success rate of puncture largely depend on the individual skill level of the doctor, and there are large differences in operation between different doctors. If the puncture position is not accurate, sufficient lung nodule tissue samples may not be obtained, and repeated puncture is needed, which not only increases the pain and infection risk of patients, but also may delay the diagnosis and treatment of the disease.

[0005] In addition, the existing lung nodule positioning device and puncture needle often do not fully consider the comfort of patients and the convenience of operation in design. For example, the positioning device is not close enough to the part of the patient's body in contact, which is easy to shift during operation; the grip design of the puncture needle is unreasonable, and the doctor is easy to feel tired during long-time operation, which affects the stability and accuracy of puncture.

[0006] In summary, the existing lung nodule positioning and puncture technology cannot meet the clinical demand for accurate, efficient, and comfortable operation, and there is an urgent need for a lung nodule positioning device and a lung nodule puncture needle that can improve positioning accuracy, enhance puncture success rate, and improve patient comfort and operation convenience. SUMMARY

[0007] In order to overcome the existing problems, the present application provides a lung nodule positioning device and a lung nodule puncture needle, which aims to solve the problems of poor positioning accuracy, low puncture success rate, insufficient patient comfort and operation convenience, etc. in the existing lung nodule positioning and puncture technology.

[0008] The technical scheme adopted by the embodiments of the present application to solve the technical problems is: A lung nodule positioning device and lung nodule puncture needle, comprising a positioning mechanism and a puncture mechanism, the puncture mechanism can be penetrated in the positioning mechanism and moved; The positioning mechanism comprises a positioning seat, a limiting seat, a first connecting column, a second connecting column, a limiting belt and a limiting groove, the limiting belt is clamped with the limiting groove, the puncture mechanism in the limiting seat is limited, the positioning seat has a shape conforming to the contour of the human chest, the limiting seat is located at the top end of the positioning seat, the limiting seat is provided with a limiting groove on one side of the positioning seat, a first connecting column and a second connecting column are arranged on the outer wall of the limiting seat at intervals, the first connecting column and the second connecting column are integrally connected with the limiting seat, one end of the limiting belt is fixed on the first connecting column, the other end can pass through the outer wall of the second connecting column and is fixed with the other first connecting column, and the puncture mechanism is penetrated in the positioning mechanism.

[0009] Preferably, the second connecting column is provided with a limiting plate at the top end, one end of the limiting plate is fixed with the second connecting column, and the other end extends to the outside of the second connecting column, the first connecting column is provided with two, and the two first connecting columns and the second connecting column form a triangular structure, so that one end of the limiting belt is connected with one of the first connecting columns, the limiting belt is connected with the other first connecting column after passing through the second connecting column, and a triangular structure is formed.

[0010] Preferably, the bottom end of the positioning seat is provided with a protective pad, the positioning seat and the protective pad are fixedly connected by pasting or buckling, the positioning seat and the protective pad are coaxial structure, and the protective pad is made of medical silica gel material.

[0011] Preferably, the puncture mechanism comprises a holding end, a puncture needle rod and a puncture needle head; The holding end is fixedly connected with one end of the puncture needle rod, the puncture needle rod is made of high-strength and good-toughness medical stainless steel material, the diameter of the puncture needle rod is selected according to clinical requirements, the surface of the puncture needle rod is treated to be smooth, so as to reduce the friction and damage to the lung tissue in the puncture process, the surface of the holding end is provided with anti-skid texture, such as uneven stripes or granular protrusions, to facilitate the doctor to hold, one end of the holding end is fixedly connected with the puncture needle rod to ensure firm connection, the holding end and the puncture needle rod are fixedly connected by thread connection, welding or interference fit, the other end of the puncture needle rod is provided with the puncture needle head, the puncture needle head is designed in sharp three edges or four edges, and the tip is treated by special polishing, the puncture needle head is installed at the other end of the puncture needle rod, and the tip has good penetration due to the special polishing treatment.

[0012] The advantages of the embodiment of the present application are: The positioning seat in the positioning mechanism adopts an ergonomic shape, can better fit the chest contour of the patient, reduces the risk of displacement during operation, and the surface of the positioning seat is provided with a protective pad made of soft and skin-friendly material, such as medical silica gel, which can increase the comfort of the patient and also play a certain anti-skid role, further improving the stability of positioning. The unique structure design of the limiting seat as a key component of the positioning mechanism enhances the accuracy of positioning. The limiting groove at the bottom end of the limiting seat cooperates with the limiting belt. When the puncture mechanism penetrates the limiting seat to the appropriate position, the limiting belt is tightly clamped with the limiting groove, which can accurately fix the position of the puncture mechanism, effectively avoiding the deviation in the puncture process, thereby greatly improving the accuracy of positioning. BRIEF DESCRIPTION OF DRAWINGS

[0013] The present application will be further described below in conjunction with the drawings and examples.

[0014] Figure 1 It is a schematic diagram of the overall structure of the lung nodule positioning device of the present application. Figure 2 It is a schematic diagram of the first form structure of the positioning mechanism in the lung nodule positioning device of the present application. Figure 3 It is a schematic diagram of the second form structure of the positioning mechanism in the lung nodule positioning device of the present application. Figure 4 It is a schematic diagram of the overall structure of the lung nodule positioning puncture needle of the present application.

[0015] Explanation of main reference signs: 100, positioning mechanism; 1, positioning seat; 2, protective pad; 3, limiting seat; 4, first connecting column; 5, second connecting column; 6, limiting plate; 7, limiting belt; 8, limiting groove; 200, puncture mechanism; 9, holding end; 10, puncture needle shaft; 11, puncture needle tip. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In addition, for the convenience of description, the "up", "down", "left", "right" and the like in the drawings are consistent with the up, down, left and right of the drawings, and the "first", "second" and the like in the following are for description and have no special meaning.

[0017] The embodiment of the application provides a lung nodule positioning device and a lung nodule puncture needle, solves the problems in the prior art, the positioning seat in the positioning mechanism adopts an ergonomic shape, can better fit the chest contour of a patient, reduces the displacement risk in the operation process, the positioning seat surface is provided with a protective pad, the protective pad adopts a soft and skin-friendly material, such as medical silica gel, can increase the comfort of the patient, has a certain anti-skid effect, further improves the stability of positioning, the unique structure design of the limiting seat as a key component of the positioning mechanism enhances the positioning accuracy, the limiting groove at the bottom end of the limiting seat cooperates with the limiting belt, when the puncture mechanism penetrates the limiting seat to reach a suitable position, the limiting belt is tightly clamped with the limiting groove, the position of the puncture mechanism can be accurately fixed, the deviation in the puncture process is effectively avoided, and therefore the positioning accuracy is greatly improved.

[0018] The technical scheme in the embodiment of the application is to solve the above problems, and the general idea is as follows: Embodiment 1 This embodiment gives a specific structure of a lung nodule positioning device, as shown in Figures 1-3 The device comprises a positioning mechanism 100 and a puncture mechanism 200, the puncture mechanism 200 can penetrate and move in the positioning mechanism 100; The positioning mechanism 100 comprises a positioning seat 1, a limiting seat 3, a first connecting column 4, a second connecting column 5, a limiting belt 7 and a limiting groove 8, after the limiting belt 7 is clamped with the limiting groove 8, the puncture mechanism 200 in the limiting seat 3 can be limited, the positioning seat 1 has a shape conforming to the chest contour of a human body, the limiting seat 3 is located at the top end of the positioning seat 1, the limiting seat 3 is provided with the limiting groove 8 at one side of the positioning seat 1, a plurality of first connecting columns 4 and a plurality of second connecting columns 5 are arranged at intervals on the outer wall of the limiting seat 3, the first connecting columns 4 and the second connecting columns 5 are integrally formed and fixedly connected with the limiting seat 3, one end of the limiting belt 7 is fixed on the first connecting column 4, the other end can penetrate the outer wall of the second connecting column 5 and is fixed with another first connecting column 4, the puncture mechanism 200 penetrates in the positioning mechanism 100, when the puncture mechanism 200 penetrates the limiting seat 3 to reach a suitable position, the puncture mechanism 200 in the limiting seat 7 can be limited through clamping of the limiting belt 7 and the limiting groove 8.

[0019] By adopting the above technical scheme: The positioning mechanism 100 provides accurate positioning and stable support for the puncture mechanism 200, the positioning seat 1 and the protective pad 2 ensure that the positioning mechanism 100 is closely attached to the chest of a patient, reduces the position change caused by breathing or body position change of the patient, the limiting seat 3 and the related components accurately limit the puncture mechanism 200 through cooperation of the limiting belt 7 and the limiting groove 8, and the accuracy of a puncture path is ensured.

[0020] The second connecting column 5 is provided with a limiting plate 6 at the top end, one end of the limiting plate 6 is fixed with the second connecting column 5, and the other end extends to the outside of the second connecting column 5.

[0021] The bottom end of the positioning seat 1 is provided with a protective pad 2, the positioning seat 1 and the protective pad 2 are fixedly connected by pasting or buckling, the positioning seat 1 and the protective pad 2 are coaxial structure, and the protective pad 2 is made of medical silica gel material.

[0022] By adopting the above technical scheme: The protective pad 2 on the positioning seat 1 is not only soft and comfortable, but also can effectively reduce the discomfort of the patient during positioning and puncture. In terms of operation convenience, the holding end 9 adopts an ergonomic design, and the surface has anti-slip texture, so that the doctor holds more stably, and does not feel tired after long time operation. In addition, the first connecting column 4 and the second connecting column 5 arranged on the limiting seat 3 facilitate the doctor to quickly and accurately limit the puncture mechanism 200 through the limiting belt 7 during operation, simplify the operation process, and improve the operation efficiency.

[0023] Embodiment 2 This embodiment gives a specific structure of a lung nodule puncture needle, as shown in Figure 1 , 4 The puncture mechanism 200 includes a holding end 9, a puncture needle rod 10 and a puncture needle head 11. The holding end 9 is fixedly connected with one end of the puncture needle rod 10, the puncture needle rod 10 is made of high-strength and good-toughness medical stainless steel material, the diameter of which is selected according to clinical requirements, the surface of the puncture needle rod 10 is treated to be smooth to reduce the friction and damage to lung tissue during puncture, the surface of the holding end 9 is provided with anti-slip texture such as uneven stripes or granular protrusions, which facilitates the doctor to hold, one end of the holding end 9 is fixedly connected with the puncture needle rod 10 to ensure firm connection, the holding end 9 and the puncture needle rod 10 are fixedly connected by threaded connection, welding or interference fit, the other end of the puncture needle rod 10 is provided with the puncture needle head 11, the puncture needle head 11 adopts sharp three-angled or four-angled design, and the tip is treated by special polishing, the puncture needle head 11 is installed at the other end of the puncture needle rod 10, and has good penetration due to the special polishing treatment of the tip.

[0024] By adopting the above technical scheme: The design of the puncture mechanism 200 fully considers the stability and accuracy of puncture. The puncture needle shaft 10 is made of high-strength and ductile medical stainless steel material to ensure that it will not bend or break during puncture, ensuring the stability of the puncture path. The puncture needle tip 11 is specially treated for sharpness, which can more smoothly penetrate the lung tissue, reduce tissue damage, and improve the success rate of puncture. At the same time, the puncture mechanism 200 is more closely designed with the positioning mechanism 100. The puncture mechanism 200 can move smoothly inside the positioning mechanism 100. Under the precise positioning action of the limiting seat 3, it can accurately reach the lung nodule site, further ensuring the accuracy and success rate of puncture.

[0025] In a specific application environment: In use, the positioning seat 1 is placed on the patient's chest at the approximate position of the lung nodule. Adjust the position and angle of the positioning seat 1 so that the protective pad 2 fully fits the patient's chest and the patient feels comfortable. Then, according to the actual situation, fine-tune the position of the limiting seat 3 in the positioning seat 1 to ensure that the center of the limiting seat 3 is aligned with the expected puncture path.

[0026] The puncture mechanism 200 is composed of a holding end 9, a puncture needle shaft 10, and a puncture needle tip 11.

[0027] The holding end 9 is a cylindrical structure with anti-slip texture such as uneven stripes or granular protrusions on the surface to facilitate the doctor's grip. One end of the holding end 9 is fixedly connected with the puncture needle shaft 10 to ensure firm connection.

[0028] The puncture needle shaft 10 is made of high-strength medical stainless steel material. Its diameter is selected according to clinical needs. The surface of the puncture needle shaft 10 is treated to be smooth to reduce friction and damage to the lung tissue during puncture.

[0029] The puncture needle tip 11 is installed at the other end of the puncture needle shaft 10. The puncture needle tip 11 is designed with sharp three or four edges. The tip is specially polished to have good penetrability.

[0030] During puncture operation, the doctor holds the holding end 9 and inserts the puncture needle shaft 10 and the puncture needle tip 11 from one end of the positioning seat 1 so that they penetrate the limiting seat 3. When the puncture needle tip 11 approaches the expected lung nodule position, the doctor judges whether the puncture position is accurate by observing the patient's reaction, combining with imaging data, etc. If the position is accurate, the limiting belt 7 is pulled out of the hole of the limiting plate 6 and is clamped with the limiting groove 8 to limit the puncture mechanism 200 from shifting during puncture. Then, the doctor continues to slowly push the holding end 9 to make the puncture needle tip 11 accurately penetrate the lung nodule to obtain tissue samples.

[0031] During the whole operation, the positioning mechanism 100 provides accurate positioning and stable support for the puncture mechanism 200, the positioning seat 1 and the protective pad 2 ensure that the positioning mechanism 100 is closely attached to the patient's chest, reducing the position change caused by the patient's breathing or body position change, the limiting seat 3 and its related components cooperate with the limiting belt 7 and the limiting groove 8 to accurately limit the puncture mechanism 200, and ensure the accuracy of the puncture path.

[0032] During the movement of the puncture mechanism 200 inside the positioning mechanism 100, it needs to be stable and accurate, the doctor operates the puncture needle shaft 10 and the puncture needle head 11 by holding the end 9, accurately controls the depth and direction of puncture according to the positioning information provided by the positioning mechanism 100, if it is necessary to adjust the puncture position during the puncture process, the clamping of the limiting belt 7 and the limiting groove 8 can be released first, the position of the puncture mechanism 200 is adjusted, and then the limiting is carried out again to ensure that the puncture operation can be completed smoothly.

[0033] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the present application, and are not limited to the implementation. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and impossible to enumerate all the implementation. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A lung nodule localization device, comprising: Including positioning mechanism (100) and puncture mechanism (200), the puncture mechanism (200) can be penetrated in the positioning mechanism (100) inside and move; The positioning mechanism (100) includes positioning seat (1), limiting seat (3), first connecting column (4), second connecting column (5), limiting band (7) and limiting groove (8), the positioning seat (1) has the shape conforming to the contour of human chest, the limiting seat (3) is located at the top of positioning seat (1), the limiting seat (3) is located at the side of the limiting groove (8) of the positioning seat (1), the first connecting column (4) and the second connecting column (5) are arranged at the outer wall of the limiting seat (3) in one circle, one end of the limiting band (7) is fixed on the first connecting column (4), the other end can penetrate the outer wall of the second connecting column (5) and is fixed with another first connecting column (4), the puncture mechanism (200) is penetrated in the positioning mechanism (100) inside, when the puncture mechanism (200) penetrates the limiting seat (3) and reaches the appropriate position, the limiting band (7) and the limiting groove (8) are clamped, and the puncture mechanism (200) inside the limiting seat (7) can be limited.

2. The lung nodule localization device of claim 1, wherein, The second connecting column (5) is provided with a limiting plate (6) at the top, one end of the limiting plate (6) is fixed with the second connecting column (5), and the other end extends to the outer side of the second connecting column (5).

3. The lung nodule localization device of claim 1, wherein, The bottom end of the positioning seat (1) is provided with a protective pad (2), the positioning seat (1) and the protective pad (2) are coaxial structure, and the protective pad (2) is made of medical silica gel material.

4. The lung nodule localization device of claim 1, wherein, The first connecting column (4) and the second connecting column (5) are integrally formed with the limiting seat (3) and are fixedly connected.

5. The lung nodule localization device of claim 1, wherein, The positioning seat (1) and the protective pad (2) are fixedly connected in a pasting or buckling mode.

6. The lung nodule localization device of claim 1, wherein, After the limiting band (7) and the limiting groove (8) are clamped, the puncture mechanism (200) inside the limiting seat (3) can be limited.

7. A lung nodule puncture needle based on the lung nodule positioning device of any one of claims 1-6, characterized in that, The puncture mechanism (200) includes holding end (9), puncture needle rod (10) and puncture needle head (11); The holding end (9) is fixedly connected with one end of the puncture needle rod (10), and the puncture needle rod (10) is provided with the puncture needle head (11) at the other end.

8. The lung nodule puncture needle of claim 7, wherein, The puncture needle rod (10) is made of high-strength, good-toughness medical stainless steel material.

9. The lung nodule puncture needle of claim 7, wherein, The puncture needle head (11) is designed as sharp three-rib or four-rib, and the tip is treated by special polishing.

10. The lung nodule puncture needle of claim 7, wherein, The surface of the holding end (9) is provided with anti-skid texture, and the holding end (9) and the puncture needle rod (10) are fixedly connected in a threaded connection, welding or interference fit mode.

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