Pulmonary nodule positioning needle stable in positioning

Abstract

The utility model relates to the technical field of medical instruments, in particular to a pulmonary nodule positioning needle stable in positioning, which comprises a puncture needle, a positioning needle, a push rod and a connecting mechanism, a puncture handle is arranged on the puncture needle, a mounting hole communicated with the puncture needle is arranged on the puncture handle, and the push rod is arranged in the mounting hole; the connecting mechanism comprises a connecting block, a mounting block and a sliding block, the connecting block is in threaded connection with the interior of the puncture needle, a connecting groove is formed in the side wall of one side of the connecting block, and an inserting block is arranged at the end, located in the puncture needle, of the push rod and matched with the connecting groove; the mounting block is movably arranged on the other side of the connecting block, sliding blocks are arranged on the two sides of the mounting block, a sliding groove is formed in the inner wall of the puncture needle, the sliding blocks are arranged in the sliding groove in a sliding mode, and the positioning needle is arranged in the puncture needle and connected with the side wall of the mounting block. The positioning stability of the positioning needle is improved, the identification and processing precision of pulmonary nodules in the operation process is improved, operation errors are reduced, and the success rate of the operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a pulmonary nodule positioning needle with stable positioning. Background Art

[0002] Thoracoscopic lung nodule resection surgery has been widely used clinically due to its advantages of being minimally invasive and safe. However, lung nodules are small in size and the field of view of the thoracoscope is limited. Before the operation, the lung nodules must be accurately located using puncture positioning technology under CT fluoroscopy to help the surgeon find the lung nodules during the operation and improve the accuracy of the operation.

[0003] Total thoracoscopic surgery is the main means of diagnosis and treatment of lung nodules, but the location of lung nodule lesions is easily deviated during surgery, and accurate positioning is difficult, which increases the difficulty of the operation.

[0004] Chinese patent CN220069819U discloses a lung nodule positioning needle, including a puncture needle, the puncture needle is used to push the positioning needle to locate the lung nodule, one end of the puncture needle is provided with a puncture needle handle, the puncture needle handle is provided with a pushing hole connected to the puncture needle, a pushing rod is inserted into the pushing hole, the pushing rod is inserted into one end of the puncture needle to push the positioning needle through the pushing inner core component. When in use, the positioning needle is first placed into the head end of the puncture needle, after the puncture is completed in the puncture needle, the pushing handle is held and the pushing rod is inserted into the puncture needle through the pushing hole, the pushing rod pushes the inner core component to slide in the puncture needle, driving the limiting slider to slide in the sliding port, the inner core component pushes the positioning needle out of the puncture needle, and the threaded spring part at the front end of the puncture needle is inserted into the lung nodule to complete the positioning of the lung nodule. The puncture needle with an integrated structure can actually withstand strong pulling force, is not easy to fall off during positioning, and has a good positioning effect.

[0005] However, this patent still has the following problems: when pushing the push rod, the position where the positioning needle is extended cannot be accurately controlled, and at the same time, the force with which the doctor pushes the push rod is different, which affects the accuracy of positioning. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a stable pulmonary nodule localization needle. This needle improves the stability of the positioning of the needle through the cooperation of a slider and a slide groove. At the same time, the extension of the positioning needle is precisely controlled by rotating a push rod, thereby improving the accuracy of positioning.

[0007] To achieve the above-mentioned purpose, according to the embodiment of the first aspect of the present utility model, a stable positioning lung nodule positioning needle is proposed, including a puncture needle, a positioning needle, a push rod and a connecting mechanism, the puncture needle is provided with a puncture handle, the puncture handle is provided with a mounting hole connected to the puncture needle, and the push rod is arranged in the mounting hole; the connecting mechanism includes a connecting block, a mounting block and a slider, the connecting block is threadedly connected to the inside of the puncture needle, a connecting groove is provided on one side wall of the connecting block, an insertion block is provided at one end of the push rod located inside the puncture needle, and the insertion block is adapted to the connecting groove; the mounting block is movably arranged on the other side of the connecting block, and the sliders are provided on both sides of the mounting block, a sliding groove is provided on the inner wall of the puncture needle, the slider is slidably arranged in the sliding groove, the positioning needle is arranged inside the puncture needle and connected to the side wall of the mounting block.

[0008] As a further solution of the present invention: a sealing cone tube is provided on the puncture needle, sealing grooves are provided on both sides of the sealing cone tube, and a sealing ring is provided on the outer peripheral wall of the puncture needle, and the sealing ring is adapted to the sealing groove.

[0009] As a further solution of the present invention: the front end of the positioning needle is a spring structure formed by tightly winding a single wire spiral, and the tail end is a long rod structure, and is fixedly connected to the mounting block.

[0010] As a further solution of the present invention: the sealing grooves on both sides are respectively arranged on both sides of the sliding groove.

[0011] As a further solution of the present invention: a rotating handle is provided at one end of the push rod located outside the puncture needle.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. According to the utility model, when the puncture needle reaches the predetermined position, the push rod is rotated, and the insert block on the push rod is adapted to the connecting groove, driving the connecting block to rotate in the puncture needle and pushing the mounting block to move. The movement of the mounting block causes the positioning needle to extend from the puncture needle and be firmly fixed on the lung nodule for positioning. At the same time, the cooperation between the slider and the slide groove improves the stability of the positioning of the positioning needle, improves the accuracy of identifying and treating lung nodules during surgery, helps reduce surgical errors, and improves the success rate of surgery.

[0014] 2. The utility model forms a sealing structure by adapting the sealing ring to the sealing groove, which can effectively prevent the leakage of gas, liquid or other biological tissues during the puncture process, thereby improving the safety and accuracy of the operation.

[0015] 3. The spring structure at the front end of this utility model can more evenly disperse the force during puncture, reducing damage to surrounding tissues. This helps reduce the risk of complications during surgery and promotes postoperative recovery.

[0016] 4. The utility model provides sealing grooves on both sides of the slide to seal both sides of the slide, thereby enhancing the sealing performance of the puncture needle and reducing the risk of pneumothorax during the puncture process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a stable positioning needle for lung nodules.

[0018] Figure 2 This is a cross-sectional view of a stable positioning needle for lung nodules.

[0019] Figure 3 Install the cross-sectional view for the connection mechanism.

[0020] Reference numerals in the figure: 1. puncture needle; 11. slide groove; 12. puncture handle; 2. positioning needle; 3. push rod; 31. insert block; 32. rotating handle; 4. connecting block; 41. connecting groove; 5. mounting block; 51. slider; 6. sealing cone; 61. sealing groove; 62. sealing ring. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 3 As shown, a stable positioning lung nodule positioning needle includes a puncture needle 1, a positioning needle 2, a push rod 3 and a connecting mechanism. The puncture needle 1 is provided with a puncture handle 12, and the puncture handle 12 is provided with a mounting hole connected to the puncture needle 1, and the push rod 3 is arranged in the mounting hole; the puncture needle 1 is operated by the puncture handle 12 thereon, and the doctor can accurately control the direction and depth of the puncture needle 1 so that it accurately reaches the location of the lung nodule or its vicinity.

[0023] The connecting mechanism includes a connecting block 4, a mounting block 5 and a slider 51. The connecting block 4 is threadedly connected to the inside of the puncture needle 1. A connecting groove 41 is provided on one side wall of the connecting block 4. An insert block 31 is provided at one end of the push rod 3 located inside the puncture needle 1. The insert block 31 is adapted to the connecting groove 41. The mounting block 5 is movably arranged on the other side of the connecting block 4, and the sliders 51 are provided on both sides of the mounting block 5. A slide groove 11 is provided on the inner wall of the puncture needle 1. The slider 51 is slidably arranged in the slide groove 11. The positioning needle 2 is arranged inside the puncture needle 1 and connected to the side wall of the mounting block 5.

[0024] The doctor first determines the location of the lung nodule using CT or other imaging technology, and guides the puncture needle 1 to accurately reach that location or its vicinity. When the puncture needle 1 reaches the predetermined location, the push rod 3 is rotated, and the insert block 31 on the push rod 3 is adapted to the connecting groove 41, driving the connecting block 4 to rotate within the puncture needle 1 and pushing the mounting block 5 to move. The movement of the mounting block 5 causes the positioning needle 2 to extend from the puncture needle 1 and be firmly fixed on the lung nodule for positioning. At the same time, the cooperation between the slider 51 and the slide groove 11 improves the stability of the positioning of the positioning needle 2, improves the accuracy of the identification and treatment of the lung nodule during the operation, helps to reduce surgical errors, and improves the success rate of the operation.

[0025] The puncture needle 1 is sleeved with a sealing cone 6 , and sealing grooves 61 are provided on both sides of the sealing cone 6 . A sealing ring 62 is provided on the outer peripheral wall of the puncture needle 1 , and the sealing ring 62 is adapted to the sealing groove 61 .

[0026] The sealing ring 62 is adapted to the sealing groove 61 to form a sealing structure, which can effectively prevent the leakage of gas, liquid or other biological tissues during the puncture process, thereby improving the safety and accuracy of the operation.

[0027] The front end of the positioning needle 2 is a spring structure formed by tightly winding a single wire spiral, and the rear end is a long rod structure, and is fixedly connected to the mounting block 5 .

[0028] The front end of the spring structure can more evenly distribute the force during puncture, reducing damage to surrounding tissues. This helps reduce the risk of complications during surgery and promotes postoperative recovery.

[0029] The sealing grooves 61 on both sides are respectively arranged on both sides of the sliding groove 11 .

[0030] The sealing grooves 61 are provided on both sides of the slide groove 11 to seal both sides of the slide groove 11, thereby enhancing the sealing performance of the puncture needle 1 and reducing the risk of pneumothorax during the puncture process.

[0031] The end of the push rod 3 located outside the puncture needle 1 is provided with a rotating handle 32 .

[0032] By providing the rotating handle 32 , the doctor can easily control the movement and rotation of the push rod 3 in the puncture needle 1 , thereby achieving precise control over the internal structure of the puncture needle 1 .

[0033] The working principle of the present utility model is as follows: the doctor first determines the location of the lung nodule through imaging technology, and uses the puncture handle 12 on the puncture needle 1 to accurately control the direction and depth of the puncture needle 1 to the target position. Subsequently, by rotating the rotating handle 32 at the end of the push rod 3, the insert block 31 in the push rod 3 is driven to engage with the connecting groove 41 in the connecting block 4, driving the connecting block 4 to rotate, and driving the mounting block 5 to slide along the slide groove 11, pushing the positioning needle 2 out of the puncture needle 1 and firmly fixed on the lung nodule. During this process, the sealing ring 62 in the sealing cone tube 6 is tightly matched with the sealing groove 61 to ensure that there is no gas or liquid leakage during the puncture process, thereby improving the safety of the operation. At the same time, the spring structure at the front end of the positioning needle 2 effectively disperses the puncture force and reduces tissue damage, while the combination of the push rod 3 and the rotating handle 32 realizes the precise control of the internal structure, which improves the overall surgical accuracy and success rate.

[0034] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A stable positioning needle for pulmonary nodules, comprising a puncture needle (1), a positioning needle (2), a push rod (3) and a connecting mechanism, wherein the puncture needle (1) is provided with a puncture handle (12), the puncture handle (12) is provided with a mounting hole connected to the puncture needle (1), and the push rod (3) is arranged in the mounting hole; It is characterized by: The connecting mechanism comprises a connecting block (4), a mounting block (5) and a slider (51); the connecting block (4) is connected to the inner thread of the puncture needle (1); a connecting groove (41) is provided on one side wall of the connecting block (4); an inserting block (31) is provided at one end of the push rod (3) located inside the puncture needle (1); the inserting block (31) is adapted to the connecting groove (41); The mounting block (5) is movably arranged on the other side of the connecting block (4), and the sliders (51) are arranged on both sides of the mounting block (5). A slide groove (11) is provided on the inner wall of the puncture needle (1), and the slider (51) is slidably arranged in the slide groove (11). The positioning needle (2) is arranged inside the puncture needle (1) and connected to the side wall of the mounting block (5).

2. The stable positioning needle for pulmonary nodules according to claim 1, characterized in that: The puncture needle (1) is provided with a sealing cone tube (6), and sealing grooves (61) are provided on both sides of the interior of the sealing cone tube (6). A sealing ring (62) is provided on the outer peripheral wall of the puncture needle (1), and the sealing ring (62) is adapted to the sealing groove (61).

3. The stable positioning needle for pulmonary nodules according to claim 1, characterized in that: The front end of the positioning needle (2) is a spring structure formed by tightly wound monofilament spirals, and the rear end is a long rod structure, and is fixedly connected to the mounting block (5).

4. The stable positioning needle for pulmonary nodules according to claim 2, characterized in that: The sealing grooves (61) on both sides are respectively arranged on both sides of the sliding groove (11).

5. The stable positioning needle for pulmonary nodules according to claim 1, characterized in that: A rotating handle (32) is provided at one end of the push rod (3) located outside the puncture needle (1).

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