Auxiliary calibration support for laser positioner

Abstract

The utility model relates to an auxiliary calibration bracket for a laser positioner, which comprises a fixed base, a sliding rail connected to one side of the fixed base, a sliding block connected to the sliding rail, a fixed sliding plate connected to the sliding block, mounted bearings connected to the fixed base, a transmission screw rod connected between the mounted bearings, and a sliding block sleeved on the transmission screw rod, a connecting block is connected between the sliding block and the fixed sliding plate, a driving device connected with the transmission lead screw is connected to the fixed base, a first supporting column is connected to the fixed sliding plate, a second supporting column is connected to the first supporting column and is of an arc-shaped structure, and the first supporting column is connected with a third supporting column through the second supporting column. The third supporting column extends to the other side of the fixed base, a sliding rail groove is formed in the side edge of the third supporting column, the laser positioner is connected into the sliding rail groove in a sliding mode, and the other side of the fixed base is connected with a calibration graph. According to the utility model, rapid and accurate calibration can be realized, and the efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to an auxiliary calibration bracket for a laser positioner. Background Technology

[0002] CT-guided percutaneous soft tissue biopsy is an important diagnostic method for confirming the nature of visceral soft tissue masses, inflammatory lesions, and other superficial masses. However, the ideal needle insertion angle for CT-guided biopsy is often at a certain angle to the vertical. The operator must accurately estimate the angle to ensure accurate needle insertion and successful puncture, especially when the mass is small (e.g., <1cm), where precise localization is even more crucial. Most biopsiers can only estimate the needle insertion angle visually, which often results in significant errors. The longer the needle travel, the greater the error between the actual and planned puncture sites. Due to inaccurate needle insertion angles, repeated adjustments and re-insertion are frequently necessary, which not only reduces the success rate and efficiency of the procedure but also increases patient discomfort and the likelihood of complications.

[0003] A search revealed a patent: a CT-guided percutaneous photostimulation positioning device (CN201910070068.X), comprising a positioning device, a horizontal rod, and a support. One end of the horizontal rod is connected to the support. There are two horizontal rods, at least one of which can rotate around the support in a horizontal plane. The positioning device is mounted on the horizontal rod and can move horizontally along the horizontal rod and rotate relative to the horizontal rod in a vertical plane. The positioning device includes a linear laser, a tilt sensor, and a display screen. The plane of the laser beam path of the positioning device is perpendicular to the vertical plane containing the horizontal rod. While this structure can solve the positioning problem, it requires manual adjustment, which is slow and inaccurate. The laser positioning device described above needs to be calibrated before operation to avoid affecting subsequent accuracy. Calibration is generally performed directly within the structure, using software and corresponding calibration diagrams. However, this method is prone to inaccuracies.

[0004] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a new type of laser positioner auxiliary calibration bracket with a more industrial application value. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a laser positioner auxiliary calibration bracket.

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

[0007] A laser locator auxiliary calibration bracket includes a fixed base, a slide rail connected to one side of the fixed base, a slider connected to the slide rail, a fixed slide plate connected to the slider, a bearing with a seat connected to the fixed base, a transmission screw connected between the bearings with seats, a sliding block fitted on the transmission screw, a connecting block connecting the sliding block and the fixed slide plate, a drive device connected to the transmission screw connected to the fixed base, a first support column connected to the fixed slide plate, a second support column connected to the first support column, the second support column having an arc-shaped structure, the first support column being connected to a third support column via the second support column, the third support column extending to the other side of the fixed base, a slide rail groove formed on the side of the third support column, the laser locator being slidably connected in the slide rail groove, and a calibration diagram connected to the other side of the fixed base.

[0008] Preferably, in the laser positioner auxiliary calibration bracket, the driving device is a servo motor.

[0009] Preferably, in the laser positioner auxiliary calibration bracket, the outer end of the third support column is connected to a blocking block.

[0010] Preferably, in the laser positioner auxiliary calibration bracket, the fixed base has a positioning hole for positioning the calibration diagram.

[0011] Preferably, in the laser positioner auxiliary calibration bracket, the first support column, the second support column, and the third support column are connected to each other by plugging.

[0012] By means of the above solution, this utility model has at least the following advantages:

[0013] This invention enables rapid calibration of laser positioning instruments, is simple and quick to operate, and improves calibration efficiency.

[0014] 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

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0020] Example

[0021] like Figure 1 and Figure 2 As shown, a laser locator auxiliary calibration bracket includes a fixed base 1, a slide rail 2 connected to one side of the fixed base 1, a slider 3 connected to the slide rail 2, a fixed slide plate 4 connected to the slider 3, a bearing 5 connected to the fixed base 1, a transmission screw 6 connected between the bearings 5, a sliding block 7 fitted on the transmission screw 6, a connecting block 8 connected between the sliding block 7 and the fixed slide plate 4, a drive device 9 connected to the transmission screw 6 connected to the fixed base 1, a first support column 10 connected to the fixed slide plate 4, a second support column 11 connected to the first support column 10, the second support column 11 having an arc-shaped structure, the first support column 10 connected to a third support column 12 via the second support column 11, the third support column 12 extending to the other side of the fixed base 1, a slide rail groove 13 formed on the side of the third support column 12, the laser locator being slidably connected within the slide rail groove 13, and a calibration diagram connected to the other side of the fixed base 1.

[0022] The driving device 9 described in this utility model is a servo motor.

[0023] The outer end of the third support column 12 in this invention is connected to a blocking block 14, which limits the position of the laser locator after it is installed, preventing the laser locator from falling off accidentally during movement.

[0024] The fixed base 1 of this invention has positioning holes 15 for positioning the calibration diagram. This allows for quick installation of the calibration diagram and ensures accuracy.

[0025] In this invention, the first support column 10, the second support column 11, and the third support column 12 are connected to each other by plug-in connection, which can facilitate quick and easy installation, and can also be assembled according to needs, thus improving applicability.

[0026] The working principle of this utility model is as follows:

[0027] In practice, the laser positioner is installed on the slide rail groove on the third support column, and then installed at the tail of the third support column via a blocking block. The laser positioner can move on its own (the patent: A movable bracket suitable for radiology CT device (CN202323490633.9) has disclosed that the laser positioner can move on its own, and the specific structure will not be described in detail). The slide rail groove on the third support column allows the laser positioner to be positioned along the Y-axis, while the slide rail allows the third support column to move along the X-axis, thereby constructing a two-dimensional coordinate system for the laser positioner to be calibrated.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this application, it should be noted that the terms "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for 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 application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or vertical, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 application based on the specific circumstances.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A laser positioner auxiliary calibration bracket, characterized in that: The system includes a fixed base (1), a slide rail (2) connected to one side of the fixed base (1), a slider (3) connected to the slide rail (2), a fixed slide plate (4) connected to the slider (3), a bearing with a seat (5) connected to the fixed base (1), a transmission screw (6) connected between the bearings with seats (5), a sliding block (7) fitted on the transmission screw (6), a connecting block (8) connected between the sliding block (7) and the fixed slide plate (4), and a drive device (9) connected to the transmission screw (6) connected to the fixed base (1). A first support column (10) is connected to the fixed sliding plate (4), and a second support column (11) is connected to the first support column (10). The second support column (11) has an arc-shaped structure. The first support column (10) is connected to a third support column (12) through the second support column (11). The third support column (12) extends to the other side of the fixed base (1). A slide rail groove (13) is provided on the side of the third support column (12). The laser positioner is slidably connected in the slide rail groove (13). A calibration diagram is connected to the other side of the fixed base (1).

2. The laser positioner auxiliary calibration bracket according to claim 1, characterized in that: The drive device (9) is a servo motor.

3. The laser positioner auxiliary calibration bracket according to claim 1, characterized in that: The outer end of the third support column (12) is connected to a blocking block (14).

4. The laser positioner auxiliary calibration bracket according to claim 1, characterized in that: The fixed base (1) is provided with a positioning hole (15) for positioning the calibration diagram.

5. The laser positioner auxiliary calibration bracket according to claim 1, characterized in that: The first support column (10), the second support column (11) and the third support column (12) are connected to each other by plugging.

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