Pulmonary nodule body surface positioning device

Abstract

The utility model relates to a pulmonary nodule body surface positioning device which comprises a fixing plate, a vertical positioning mechanism and an angle positioning mechanism. The vertical positioning mechanism comprises a measuring plate which is vertically arranged on the fixing plate and a horizontal laser which is arranged on the measuring plate and can reciprocate along the height direction of the measuring plate, and the horizontal laser is matched with the measuring plate to vertically position the body surface of the pulmonary nodule. The angle positioning mechanism comprises an angle laser instrument which is arranged on the measuring plate and can rotate along the plane of the measuring plate and a protractor arranged on the measuring plate, and the angle laser instrument and the protractor are matched to perform pulmonary nodule body surface angle positioning. The puncture path is planned through preoperative CT, the intercostal position of the body surface puncture point is positioned by utilizing the vertical positioning mechanism, and the puncture point is finally marked on the body surface by matching with the angle positioning mechanism, so that the positioning step is simplified, the positioning time and the preoperative waiting time are saved, and radiation exposure caused by multiple times of CT is reduced.

Description

Technical Field

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

[0002] For early pulmonary nodules that cannot be palpated or observed intraoperatively, preoperative localization is widely used to improve surgical safety and nodule resection success rates, reduce lung function loss, and lower the risk of surgical failure or conversion to open-chest surgery. Currently, common localization methods include hook wire, microcoil, dye localization, medical adhesive, intraoperative ultrasound, and electromagnetic navigation bronchoscopy. Each method has its advantages and disadvantages, and differs in mechanism, equipment requirements, and technical expertise.

[0003] Among these methods, the hook-wire positioning method is the most widely used, offering high positioning accuracy and relatively low equipment requirements and operational difficulty. However, hook-wire positioning requires repeated CT scans for real-time adjustments, making the procedure quite cumbersome. It involves multiple CT scans, lengthy positioning operations, and extended preoperative waiting times. Utility Model Content

[0004] The purpose of this invention is to provide a lung nodule surface localization device, which can plan the puncture path through the patient's preoperative CT scan, locate the intercostal position of the puncture point on the body surface using a vertical positioning mechanism, and finally mark the puncture point on the body surface with an angle positioning mechanism. This simplifies the localization process, saves localization time and preoperative waiting time, and reduces radiation exposure caused by multiple CT scans. Only one CT scan is needed before surgery to verify the positional relationship between the puncture needle and the lung nodule after the surface localization is completed, which can ensure the accuracy of the lung nodule surface localization.

[0005] To achieve the above objectives, this utility model provides a lung nodule surface localization device, comprising:

[0006] Fixing plate;

[0007] A vertical positioning mechanism includes a measuring plate vertically mounted on the fixed plate and a horizontal laser device mounted on the measuring plate and capable of reciprocating along the height direction of the measuring plate. The horizontal laser device cooperates with the measuring plate to perform vertical positioning of lung nodules on the body surface.

[0008] An angle positioning mechanism includes an angle laser mounted on the measuring plate and rotatable along the plane of the measuring plate, and a protractor mounted on the measuring plate. The angle laser and the protractor cooperate to perform surface angle positioning of lung nodules.

[0009] Optionally, the vertical positioning mechanism further includes:

[0010] A movable sleeve is fitted onto the measuring plate and can reciprocate along the height direction of the measuring plate.

[0011] Optionally, the measuring plate has a height scale on at least one side along the height direction, the movable sleeve has an observation slot on at least one side, and the horizontal laser instrument has a first pointer pointing to the height scale.

[0012] Optionally, a locking bolt is provided between the movable sleeve plate and the measuring plate for fixing.

[0013] Optionally, the angle positioning mechanism further includes:

[0014] A fixed sleeve is fixedly fitted onto the end of the measuring plate away from the fixed plate, and the protractor is mounted on the fixed sleeve;

[0015] An adjustment shaft is set on the fixed sleeve plate and parallel to the fixed plate, and the angle laser is set on the adjustment shaft.

[0016] Optionally, the protractor is provided with an angle scale, and the angle laser is provided with a second pointer pointing toward the angle scale.

[0017] Optionally, a locking nut is provided between the adjusting shaft and the fixed sleeve for fixing.

[0018] The beneficial effects of this invention are as follows: the puncture path is planned by the patient's preoperative CT scan, the intercostal position of the puncture point on the body surface is located by the vertical positioning mechanism, and the puncture point is finally marked on the body surface by the angle positioning mechanism. This simplifies the positioning steps, saves positioning time and preoperative waiting time, and reduces radiation exposure caused by multiple CT scans. Only one CT scan is needed before the operation to verify the positional relationship between the puncture needle and the lung nodule after the body surface positioning is completed, which can ensure the accuracy of the lung nodule's body surface positioning.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a first schematic structural diagram of a lung nodule surface positioning device according to an embodiment of the present invention;

[0021] Figure 2 This is a second schematic structural diagram of a lung nodule surface positioning device according to an embodiment of the present invention;

[0022] In the diagram: 1. Fixed plate; 2. Vertical positioning mechanism; 21. Measuring plate; 22. Horizontal laser; 23. Moving sleeve; 24. Observation slot; 25. First pointer; 3. Angle positioning mechanism; 31. Angle laser; 32. Protractor; 33. Fixed sleeve; 34. Adjusting shaft; 35. Second pointer. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Please see Figure 1 and Figure 2The lung nodule surface localization device shown in a preferred embodiment of this application includes a fixed plate 1, a vertical positioning mechanism 2, and an angle positioning mechanism 3. The vertical positioning mechanism 2 includes a measuring plate 21 vertically mounted on the fixed plate 1 and a horizontal laser 22 mounted on the measuring plate 21 and movable reciprocally along the height direction of the measuring plate 21. The horizontal laser 22 cooperates with the measuring plate 21 to perform vertical localization of the lung nodule surface. The angle positioning mechanism 3 includes an angle laser 31 mounted on the measuring plate 21 and rotatable along the plane of the measuring plate 21, and a protractor 32 mounted on the measuring plate 21. The angle laser 31 and the protractor 32 cooperate to perform angular localization of the lung nodule surface.

[0027] According to the embodiment of this utility model, the puncture path is planned using the patient's preoperative CT scan. The vertical positioning mechanism 2 is used to locate the intercostal position of the puncture point on the body surface, and the puncture point is finally marked on the body surface with the help of the angle positioning mechanism 3. This simplifies the positioning steps, saves positioning time and preoperative waiting time, and reduces radiation exposure caused by multiple CT scans. Only one CT scan is needed before surgery to verify the positional relationship between the puncture needle and the lung nodule after the body surface positioning is completed, which can ensure the accuracy of the lung nodule surface positioning. It should be noted that before using this device, the lung nodule to be surgically removed needs to be located based on the patient's preoperative CT image, and the intercostal spaces where the nodule is located are counted. A safe puncture point through the intercostal space is selected on the CT image. The principle is that the puncture path should be as short as possible and as perpendicular to the pleura as possible, avoiding important blood vessels and interlobar fissures. The puncture needle should be as close as possible to but not penetrate the lesion. Based on the CT image, the vertical distance from the puncture point to the chest and back, the angle of the puncture needle perpendicular to the chest wall, and the puncture depth are calculated. Before performing body surface positioning, the patient needs to lie supine on a hard transfer bed board, with the arm position the same as during the preoperative CT scan. Mark the intercostal space where the puncture point is located. After instructing the patient to take deep breaths, adjust the horizontal laser (22) according to the vertical distance of the puncture point from the chest and back, and adjust the angle laser (31) according to the angle of the puncture needle perpendicular to the chest wall. The point where the infrared rays emitted by the two lasers intersect on the patient's body surface is the thoracentesis point. After confirming the puncture point, instruct the patient to take a deep breath and hold it. Perform hook wire puncture at the puncture angle and release the wire. Then, move the patient to the CT room for a CT scan to determine the distance between the puncture needle and the lung nodule, facilitating intraoperative adjustment of the resection range and achieving precise resection of the lung nodule.

[0028] The following detailed description uses specific examples:

[0029] Please see Figure 1 and Figure 2The vertical positioning mechanism 2 also includes a movable sleeve 23, which is fitted onto the measuring plate 21 and can reciprocate along the height direction of the measuring plate 21. The measuring plate 21 has a height scale on at least one side along the height direction, and the movable sleeve 23 has an observation slot 24 on at least one side. The horizontal laser instrument 22 has a first pointer 25 pointing to the height scale. Specifically, in this embodiment, both sides of the measuring plate 21 are engraved with height scales, and correspondingly, both sides of the movable sleeve 23 also have observation slots 24. To facilitate adjustment of the position of the horizontal laser instrument 22, it is mounted on the movable sleeve 23 for easy vertical adjustment to determine the puncture point position based on the vertical distance from the puncture point to the chest and back and the marked intercostal spaces. The measuring plate 21 has a height scale, and the horizontal laser instrument 22 has a first pointer 25 for precise adjustment based on the values. A locking bolt is used to secure the movable sleeve 23 and the measuring plate 21. After the horizontal laser instrument 22 is adjusted, it can be locked and fixed by moving the locking bolt between the sleeve plate 23 and the measuring plate 21.

[0030] The angle positioning mechanism 3 also includes a fixed sleeve 33 and an adjusting shaft 34. The fixed sleeve 33 is fixedly fitted onto the end of the measuring plate 21 away from the fixed plate 1, and a protractor 32 is mounted on the fixed sleeve 33. The adjusting shaft 34 is mounted on the fixed sleeve 33 and parallel to the fixed plate 1, and an angle laser 31 is mounted on the adjusting shaft 34. The protractor 32 has an angle scale, and the angle laser 31 has a second pointer 35 pointing towards the angle scale. With this configuration, the angle laser 31 can be rotated according to the angle between the puncture path and the chest wall to determine the puncture angle of the puncture point, and the puncture point is finally marked in conjunction with the horizontal laser 22. The protractor 32, in conjunction with the second pointer 35, allows for more precise adjustment of the angle laser 31. Similarly, after the angle laser 31 is adjusted, a locking nut is installed between the adjusting shaft 34 and the fixed sleeve 33 for fixation.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A lung nodule surface localization device, characterized in that, include: Fixing plate; A vertical positioning mechanism includes a measuring plate vertically mounted on the fixed plate and a horizontal laser device mounted on the measuring plate and capable of reciprocating along the height direction of the measuring plate. The horizontal laser device cooperates with the measuring plate to perform vertical positioning of lung nodules on the body surface. An angle positioning mechanism includes an angle laser mounted on the measuring plate and rotatable along the plane of the measuring plate, and a protractor mounted on the measuring plate. The angle laser and the protractor cooperate to perform surface angle positioning of lung nodules.

2. The lung nodule surface positioning device according to claim 1, characterized in that, The vertical positioning mechanism also includes: A movable sleeve is fitted onto the measuring plate and can reciprocate along the height direction of the measuring plate.

3. The lung nodule surface positioning device according to claim 2, characterized in that, The measuring plate has a height scale on at least one side along the height direction, the movable sleeve has an observation slot on at least one side, and the horizontal laser instrument has a first pointer pointing to the height scale.

4. The lung nodule surface positioning device according to claim 3, characterized in that, The movable sleeve plate and the measuring plate are fixed together by locking bolts.

5. The lung nodule surface localization device according to claim 1, characterized in that, The angle positioning mechanism also includes: A fixed sleeve is fixedly fitted onto the end of the measuring plate away from the fixed plate, and the protractor is mounted on the fixed sleeve; An adjustment shaft is set on the fixed sleeve plate and parallel to the fixed plate, and the angle laser is set on the adjustment shaft.

6. The lung nodule surface positioning device according to claim 5, characterized in that, The protractor is provided with an angle scale, and the angle laser instrument is provided with a second pointer pointing toward the angle scale.

7. The lung nodule surface positioning device according to claim 6, characterized in that, A locking nut is provided between the adjusting shaft and the fixed sleeve for fixing.

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