DR shooting protection device
By installing a retractable barrier mechanism on the DR device to form a multi-shaped occlusion area, the problem that the existing DR device beam lighter cannot effectively protect the patient from the external position, and effective radiation protection for the patient's examination area is achieved, reducing the risk of examination.
Patent Information
- Application Number
- CN202420619134.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-28
AI Technical Summary
The beam device of existing DR devices has a simple structure and cannot effectively protect body parts other than patients, causing patients to receive too much radiation during the examination, increasing the risk of cancer.
A DR shooting protection device including a mounting frame installed in a window of the DR light source part and a plurality of telescopic barrier mechanisms is designed. The telescopic barrier mechanism uses the motor and reducer to achieve telescopic expansion and contraction of the barrier rod through the cooperation of the barrier rod and the sleeve, forming a shielding area of different shapes.
The device can accurately adjust the blocking area of the DR light source window according to the different shapes of the patient's examination site, minimize radiation from body parts outside the patient's examination area and reduce the patient's examination risk.
Smart Images
Figure CN222549227U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical imaging, and in particular relates to a DR shooting protection device capable of realizing accurate protection. Background Art
[0002] Since DR examination uses X-rays, which have high energy and certain radiation to the human body, when doing local examination of the human body, shielding is usually used to block the area other than the part to be tested. This is the origin of the beam beam of the current DR equipment.
[0003] However, the current beam detector has a simple structure and can only form a rectangular test area through four baffles, upper, lower, left and right. The rectangular test area has a great defect. Since the organs or parts that the patient actually needs to detect are often not regular rectangles, in order to fully obtain the organs or parts to be detected, other parts that do not need to be irradiated must be irradiated additionally, which increases the amount of radiation received by the patient and increases the risk of cancer in the patient. Therefore, there is an urgent need for a device that can provide precise protection during DR shooting to reduce the risk of patient examination. Utility Model Content
[0004] In order to solve the above-mentioned problems existing in the prior art, the purpose of the utility model is to provide a DR shooting protection device, which can form shielding areas of different shapes according to the different shapes of the patient's examination area, thereby protecting the patient's body parts outside the examination area and minimizing the patient's examination risk.
[0005] The utility model aims to disclose a DR shooting protection device, which comprises: a mounting frame mounted on the window of a DR light source part, a plurality of telescopic blocking mechanisms mounted on the mounting frame, and the telescopic blocking mechanisms can change the projection area of the vacant middle part of the mounting frame when they are extended or retracted.
[0006] Preferably, the telescopic blocking mechanism comprises a blocking rod, which is embedded in a sleeve and has an internal threaded hole. A screw rod adapted to the internal threaded hole is installed in the sleeve, and the screw rod is connected to the motor via a reducer.
[0007] Preferably, the sleeve is fixedly connected to the installation frame, and the blocking rod can extend into a vacant position in the middle of the installation frame.
[0008] Furthermore, the telescopic blocking mechanism is transversely mounted on the left and right frame arms of the installation frame, and a plurality of telescopic blocking mechanisms are longitudinally arranged in parallel.
[0009] Furthermore, a plurality of telescopic blocking mechanisms are respectively arranged and installed on the inner side surface and the outer side surface of the installation frame, and the inner telescopic blocking mechanisms are arranged alternately with the outer telescopic blocking mechanisms.
[0010] Preferably, the distance between the blocking rods of two adjacent telescopic blocking mechanisms is smaller than the width of the blocking rods.
[0011] Preferably, the edges of the upper and lower frame arms of the installation frame are folded inwards to form a support plate, and the edge of the support plate is folded toward the middle of the installation frame to form a connecting portion.
[0012] Furthermore, the blocking rod is made of lead.
[0013] The beneficial effects of the utility model are:
[0014] The DR shooting protection device disclosed by the utility model can accurately adjust the blocking area of the DR light source window according to the actual part or organ to be photographed by the patient, and can protect the body parts outside the examination area of the patient, thereby minimizing the examination risk of the patient.
[0015] For more technical benefits, please refer to the description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of a preferred embodiment of a DR shooting protection device of the utility model;
[0017] Figure 2 yes Figure 1 AA section view;
[0018] Figure 3 yes Figure 1 AA cross-section diagram of the combined ray blocking diagram;
[0019] Figure 4 It is a cross-sectional structural schematic diagram of an implementation method of a telescopic blocking mechanism;
[0020] Figure 5 yes Figure 4 Schematic diagram of the telescopic state;
[0021] Figure 6 yes Figure 1 Schematic diagram of working status;
[0022] Figure 7 Schematic diagram of the installation state of this embodiment. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0025] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0027] Example:
[0028] like Figure 1 As shown, this embodiment discloses a DR shooting protection device, which includes a mounting frame 100 mounted on the window of the DR light source part, such as Figure 7 A plurality of telescopic blocking mechanisms 200 are installed on the installation frame 100. When the telescopic blocking mechanisms 200 are extended or retracted, the projection area of the vacant middle portion of the installation frame 100 can be changed. Figure 6 shown. Figure 6 The figure shows that when a patient takes a lung image, the telescopic blocking mechanism 200 blocks part of the DR light source window to form a gap in the outline of the human lung. When the patient is examined and the DR light source emits X-rays, the area except the gap in the window outline of the lung is blocked by the telescopic blocking mechanism 200, thereby protecting the body parts outside the examination area of the patient.
[0029] Specifically, Figure 4As shown, the telescopic blocking mechanism 200 includes a blocking rod 201, which is embedded in a sleeve 202 and can move along the axial direction of the sleeve 202. The blocking rod 201 is provided with an internal threaded hole 204; a screw 205 adapted to the internal threaded hole 204 is installed in the sleeve 202, and the screw 205 is connected to the motor 203 through a reducer 206. The motor 203 drives the screw 205 to rotate through the reducer 206, thereby driving the blocking rod 201 to move back and forth along the axial direction of the sleeve 202, as shown in FIG. Figure 5 The blocking rod 201 has a rectangular cross section, and the opening of the sleeve 202 is rectangular. The blocking rod 201 and the opening of the sleeve 202 are slidably matched. The rectangular cross section limits the rotational freedom of the blocking rod 201. The screw 205 can rotate to drive the blocking rod 201 to move. At the same time, the blocking rod 201 with a rectangular cross section can block X-rays more effectively.
[0030] In order to make the structure more compact, the sleeve 202 is fixedly connected to the installation frame 100, and the blocking rod 201 can extend into the vacant position in the middle of the installation frame 100. Figure 1 As shown. Since the blocking rod 201 needs a certain length to effectively block the vacancy in the middle of the installation frame 100, and the blocking rod 201 needs to be fully telescopic, the sleeve 202 is at least as long as the blocking rod 201, plus the motor 203 and the reducer 206 at the rear of the sleeve 202, the entire telescopic blocking mechanism 200 has a certain length. The front of the sleeve 202 is fixedly connected to the installation frame 100, and the blocking rod 201 extends from the front end of the sleeve 202 to block the radiation window. The cantilever structure of the rear of the sleeve 202, the motor 203 and the reducer 206 are arranged outside the installation frame 100, which minimizes the size and structural complexity of the device. The telescopic blocking mechanism 200 is horizontally installed on the left and right frame arms of the installation frame 100, and multiple telescopic blocking mechanisms 200 are arranged in parallel vertically. Multiple telescopic blocking mechanisms 200 arranged in parallel can greatly simplify the difficulty of operation and simplify the calculation process of forming the required contour shape.
[0031] Since the blocking rod 201 is embedded in the sleeve 202, the diameter of the blocking rod 201 is smaller than the diameter of the sleeve 202. Therefore, there must be a gap between the blocking rods 201 of the telescopic blocking mechanisms 200 arranged in parallel. This will cause X-rays to pass through the gap. However, due to limited installation space, the telescopic blocking mechanisms 200 arranged in parallel in the same row cannot completely block the radiation from passing through. Therefore, in order to improve the protection effect, a plurality of telescopic blocking mechanisms 200 are respectively arranged and installed on the inner and outer sides of the installation frame 100, and the inner telescopic blocking mechanisms 200 are staggered with the outer telescopic blocking mechanisms 200. The distance between the blocking rods 201 of two adjacent telescopic blocking mechanisms 200 is smaller than the width of the blocking rods 201, such as Figure 3As shown, the rays passing through the gaps between the inner side blocking rods 201 are just blocked by the outer side blocking rods 201, thereby achieving effective protection.
[0032] Since the inner side of the installation frame 100 is also installed with a telescopic blocking mechanism 200, in order to facilitate the installation of the device on the window of the DR light source, the upper and lower frame arm edges of the installation frame 100 are folded inward to form a support plate 101, and the height of the support plate 101 is greater than the thickness of the telescopic blocking mechanism 200. Figure 2 The edge of the support plate 101 is folded toward the middle of the mounting frame 100 to form a connecting portion 102 , through which the entire device is mounted on the window of the DR light source.
[0033] In order to further effectively block X-rays, the blocking rod 201 is made of lead.
[0034] The working method of this embodiment is as follows:
[0035] First, the patient is located in front of the X-ray receiving device and the human organ to be photographed is input into the computer. The computer calculates the shape contour of the organ and processes it into the extension amount of each telescopic blocking mechanism 200 blocking rod 201 in the DR shooting protection device. Then, the movement of each telescopic blocking mechanism 200 is controlled to finally form the required blocking contour, such as Figure 6 As shown in the figure, the protective blocking outline of the lungs is shown. Then start the DR light source to shoot.
[0036] The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.
Claims
1. A DR shooting protection device, characterized in that: The invention comprises a mounting frame (100) mounted on a window of a DR light source part, wherein a plurality of telescopic blocking mechanisms (200) are mounted on the mounting frame (100), and when the telescopic blocking mechanisms (200) are telescoped, they can change the projection area of the vacant middle part of the mounting frame (100); the inner side surface and the outer side surface of the mounting frame (100) are respectively arranged and mounted with a plurality of telescopic blocking mechanisms (200), and the inner telescopic blocking mechanisms (200) and the outer telescopic blocking mechanisms (200) are arranged alternately.
2. A DR shooting protection device according to claim 1, characterized in that: The telescopic blocking mechanism (200) comprises a blocking rod (201), the blocking rod (201) is embedded in a sleeve (202), and the blocking rod (201) is provided with an internal threaded hole (204); a screw rod (205) adapted to the internal threaded hole (204) is installed in the sleeve (202), and the screw rod (205) is connected to the motor (203) via a reducer (206).
3. A DR shooting protection device according to claim 2, characterized in that: The sleeve (202) is fixedly connected to the installation frame (100), and the blocking rod (201) can extend into a vacant position in the middle of the installation frame (100).
4. A DR shooting protection device according to claim 3, characterized in that: The telescopic blocking mechanism (200) is transversely mounted on the left and right frame arms of the installation frame (100), and a plurality of telescopic blocking mechanisms (200) are longitudinally arranged in parallel.
5. A DR shooting protection device according to claim 4, characterized in that: The distance between the blocking rods (201) of two adjacent telescopic blocking mechanisms (200) is smaller than the width of the blocking rods (201).
6. A DR shooting protection device according to any one of claims 1 to 5, characterized in that: The edges of the upper and lower frame arms of the installation frame (100) are folded inwards to form a support plate (101), and the edge of the support plate (101) is folded toward the middle of the installation frame (100) to form a connecting portion (102).
7. A DR shooting protection device according to any one of claims 2 to 5, characterized in that: The blocking rod (201) is made of lead.