Lung nodule puncture positioning auxiliary device

Abstract

The utility model provides a lung nodule puncture positioning auxiliary device, which relates to the technical field of medical instruments and comprises a first ruler and a second ruler, the two rulers are arranged in a crossed manner, the first ruler is a semi-flexible ruler, the second ruler is a flexible ruler, and the first ruler and the second ruler are made of TPE (thermoplastic elastomer) materials and are provided with scales with different colors. The first ruler is connected to the second ruler in a sliding mode through a sliding connection structure, the sliding connection structure comprises a first sliding block, the first sliding block is provided with a concave arc-shaped sliding groove, and the second ruler is embedded into the sliding groove. A rotating mechanism is arranged on the first sliding block and comprises a rotating shaft and a rotating button, the first ruler is fixedly connected to the rotating shaft, and angle scales are arranged on the rotating mechanism. The second ruler is further provided with a second sliding block, the second sliding block is provided with a through hole perpendicular to the length direction of the second ruler, and the position of the through hole and the ruler face of the second ruler are staggered. Displacement in multiple directions can be measured at the same time, the measurement process is simplified, and puncture positioning efficiency and accuracy are improved.

Description

Technical Field

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

[0002] CT-guided biopsy is an important medical procedure, and its accuracy directly affects the surgical outcome. In CT-guided biopsy, a CT scan is used to determine the puncture path and needle insertion point, which are then marked on the skin surface. The typical procedure involves the doctor first administering local anesthesia according to the chosen path, leaving the anesthetic needle on the skin surface as the initial localization point.

[0003] However, in practice, the patient's position can easily change between local anesthesia and the puncture, causing the actual location of the lesion to differ from the initial localization point. In this case, a second CT scan is required to compare the angiographic information from the first CT scan with that from the second scan, in order to re-determine the location of the puncture point.

[0004] Currently, doctors typically use a single flexible measuring tape to determine changes in the location of lesions. However, this measurement method has significant shortcomings when the patient's position changes involve multiple directions (such as the anterior-posterior and posterior-inferior directions): First, it requires measuring displacement in different directions separately, which is cumbersome; second, multiple measurements prolong the operation time and increase the doctor's workload; and third, step-by-step measurements are prone to cumulative errors, affecting the accuracy of puncture localization.

[0005] Furthermore, existing technologies lack a convenient measuring tool capable of simultaneously measuring displacement in two directions. This complicates the localization process when dealing with multi-directional patient displacement, reducing surgical efficiency and potentially affecting puncture accuracy. Utility Model Content

[0006] The purpose of this invention is to provide an auxiliary device for puncture and positioning of lung nodules, which can simultaneously measure displacement in multiple directions, simplify the measurement process, and improve the efficiency and accuracy of puncture positioning.

[0007] To achieve the above objectives, this utility model employs the following technical solution:

[0008] A lung nodule puncture positioning aid device includes a first ruler and a second ruler, wherein the first ruler and the second ruler are arranged in a cross shape;

[0009] A sliding connection structure is used, in which the first ruler is slidably connected to the second ruler.

[0010] A positioning structure is provided on the second ruler to mark the puncture position.

[0011] Furthermore: the sliding connection structure includes a sliding block one, which is slidably mounted on the second ruler, and the first ruler is connected to the sliding block one.

[0012] Furthermore: the sliding block is provided with a concave arc-shaped groove, and the second ruler is embedded in the arc-shaped groove and fits against the inner wall of the arc-shaped groove.

[0013] Furthermore: the sliding block is provided with a rotating mechanism, the rotating mechanism includes a rotating shaft and a rotating knob coaxial with the rotating shaft, the first ruler is fixedly connected to the rotating shaft, and the axis of the rotating shaft is parallel to the length direction of the first ruler.

[0014] Furthermore, the positioning structure is a second sliding block, which is slidably mounted on the second ruler. The second sliding block has a through hole perpendicular to the length direction of the second ruler, and the position of the through hole is offset from the surface of the second ruler. A rotating mechanism drives the second ruler to rotate, thereby rotating the through hole to mark changes in the puncture angle.

[0015] Furthermore, the first ruler is a flexible measuring tape, and the second ruler is a semi-flexible measuring tape. This combination of flexible and semi-flexible measuring tape ensures both the overall flexibility of the measuring device and the stability of the cross structure, allowing the device to conform to the patient's body surface without compromising the accuracy of position adjustment, thus improving its practical effectiveness.

[0016] Furthermore, both the first and second rulers are made of TPE material. TPE material has good biocompatibility and is easy to sterilize, enabling the flexible ruler of this invention to meet the hygiene requirements of medical devices in the surgical environment. It can be reused, making it both safe and economical.

[0017] Furthermore, both the first and second rulers are equipped with graduations.

[0018] Furthermore, the graduations on the first ruler and the graduations on the second ruler are marked with different colors.

[0019] Furthermore, the rotating mechanism is provided with an angle scale for indicating the rotation angle of the rotating shaft.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] I. This utility model, by setting up a cross-shaped first and second ruler, and allowing the first ruler to slide on the second ruler via a sliding connection structure, enables simultaneous measurement of the lesion's displacement in both the anterior-posterior and superior-inferior directions during CT-guided puncture surgery. Thus, when the patient's position changes, only one measurement is needed to determine the displacement values ​​in both directions, significantly simplifying the measurement process and improving surgical efficiency.

[0022] Second, since this utility model does not require repeated changes in the position of the measuring tool for multiple measurements, it effectively avoids the cumulative error that may result from multiple measurements, and further ensures the accuracy of puncture positioning.

[0023] Third, the TPE material possesses excellent flexibility and bending resistance, enabling the first and second rulers of this invention to conform to the patient's body surface while maintaining measurement accuracy. This soft, conforming fit avoids discomfort to the patient during measurement and ensures the accuracy of the measured values. Attached Figure Description

[0024] Figure 1 This is a top view schematic diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the front view of this utility model;

[0026] In the picture:

[0027] 1. First foot; 2. Second foot; 3. Sliding block one; 4. Rotating mechanism; 5. Rotating knob; 6. Sliding block two; 7. Through hole. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] like Figure 1As shown: A lung nodule puncture positioning aid device includes a first ruler 1 and a second ruler 2, which are arranged in a cross shape; the first ruler 1 is a flexible ruler, and the second ruler 2 is a semi-flexible ruler, both of which are made of TPE material. Both the first ruler 1 and the second ruler 2 have graduations, and the graduations on the first ruler 1 and the second ruler 2 are marked with different colors.

[0031] A sliding connection structure is provided, wherein the first ruler 1 is slidably connected to the second ruler 2 through the sliding connection structure; the sliding connection structure includes a sliding block 3, which is slidably installed on the second ruler 2, and the first ruler 1 is connected to the sliding block 3; the sliding block 3 is provided with a concave arc-shaped groove, and the second ruler 2 is embedded in the arc-shaped groove and fits against the inner wall of the arc-shaped groove.

[0032] A positioning structure is provided on the second ruler 2 for marking the puncture position. A rotating mechanism 4 is provided on the sliding block 3, which includes a rotating shaft and a rotating knob 5 coaxial with the shaft. The first ruler 1 is fixedly connected to the rotating shaft, the axis of which is parallel to the length direction of the first ruler 1. The rotating mechanism 4 has an angle scale for indicating the rotation angle of the rotating shaft. The positioning structure is a second sliding block 6, which is slidably mounted on the second ruler 2. The second sliding block 6 has a through hole 7 perpendicular to the length direction of the second ruler 2, and the through hole 7 is offset from the surface of the second ruler 2. The rotating mechanism 4 drives the second ruler 2 to rotate, thereby marking the change in the puncture angle.

[0033] The working principle of this utility model is as follows:

[0034] First, a CT scan is used to determine the location of the lesion and the needle insertion path. Local anesthesia is then administered to the skin, and the anesthetic needle is left on the skin as the initial localization point. When puncture is required, a second CT scan is necessary because the patient's position may change. The contrast information from the first and second CT scans is compared, and the contrast information records the coordinates of the lesion. By comparing the changes in the coordinates, the change in the lesion's location is determined.

[0035] Based on the changes in the coordinate position of the lesion in the angiography information of the first and second CT scans, the positions of sliding block 3 on the second foot 2 and sliding block 6 on the first foot 1 are adjusted. Taking the first positioning point, i.e., the position where the anesthesia needle was placed, as the origin, this utility model is placed on the patient's chest cavity. At this time, the position of sliding block 6 is the accurate puncture positioning point of the current lesion. The different colored scales on the first foot 1 and the second foot 2 facilitate doctors to quickly and accurately read the displacement values ​​and prevent the horizontal and vertical coordinates from being read in reverse.

[0036] When the puncture angle needs to be adjusted, the rotating knob 5 on the sliding block 3 drives the rotating shaft to rotate. Since the first ruler 1 is a semi-flexible ruler, it is fixedly connected to the rotating shaft, and the axis of the rotating shaft is parallel to the length direction of the first ruler 1. Therefore, the angle of the first ruler 1 can be adjusted. The sliding block 2 6 marks the final puncture position through the through hole 7. The rotation of the first ruler 1 causes the through hole 7 to rotate accordingly. The angle scale on the rotating mechanism 4 can accurately indicate the rotation angle of the rotating shaft, making it easy for doctors to accurately control the adjustment amount of the puncture angle. The design of the through hole 7 being perpendicular to the length direction of the second ruler 2 and offset from the surface of the first ruler 1 ensures the accuracy of the puncture position marking and avoids interference with the measuring ruler body.

[0037] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A lung nodule puncture positioning auxiliary device, characterized in that: It includes a first foot and a second foot, which are arranged in a cross shape; A sliding connection structure is used, in which the first ruler is slidably connected to the second ruler. A positioning structure is provided on the second ruler to mark the puncture position.

2. The lung nodule puncture positioning auxiliary device according to claim 1, wherein: The sliding connection structure includes a sliding block 1, which is slidably mounted on the second ruler, and the first ruler is connected to the sliding block 1.

3. The lung nodule puncture positioning auxiliary device according to claim 2, characterized in that: The sliding block is provided with a concave arc-shaped groove, and the second ruler is embedded in the arc-shaped groove and fits against the inner wall of the arc-shaped groove.

4. The lung nodule puncture positioning auxiliary device according to claim 2, characterized in that: The sliding block is provided with a rotating mechanism, which includes a rotating shaft and a rotating knob coaxial with the rotating shaft. The first ruler is fixedly connected to the rotating shaft, and the axis of the rotating shaft is parallel to the length direction of the first ruler.

5. The lung nodule puncture positioning auxiliary device according to claim 1, wherein: The positioning structure is a second sliding block, which is slidably mounted on the second ruler. The second sliding block has a through hole perpendicular to the length direction of the second ruler, and the position of the through hole is offset from the surface of the second ruler.

6. The lung nodule puncture positioning auxiliary device according to claim 1, wherein: The second ruler is a soft ruler, and the first ruler is a semi-soft ruler.

7. The lung nodule puncture positioning auxiliary device according to claim 1, wherein: The first and second rulers are made of TPE material.

8. The lung nodule puncture positioning auxiliary device according to claim 1, wherein: Both the first and second rulers have graduations.

9. The lung nodule puncture positioning auxiliary device according to claim 8, characterized in that: The graduations on the first ruler and the graduations on the second ruler are marked with different colors.

10. The lung nodule puncture positioning auxiliary device according to claim 4, characterized in that: The rotating mechanism is provided with an angle scale for indicating the rotation angle of the rotating shaft.

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