A protective device capable of automatic tracking

Abstract

The present invention relates to the technical field of medical devices, and specifically to an automatically trackable protective device, comprising: a lead protective device, a light detection device, a driving mechanism and a controller; the lead protective device is installed on the driving mechanism; the light detection device is fixedly installed on the lead protective device and is located on one side of the lead protective device, the light detection device comprises a plurality of light sensors arranged along the translation direction of the lead protective device, and the plurality of light sensors are respectively arranged on the surface of the lead protective device; the visible light is generated according to the ray emission angle of the imaging device; the controller determines the illumination range according to whether the plurality of light sensors respectively detect the visible light, and controls the driving mechanism to take the lead protective device away from the illumination range. The automatically trackable protective device can quickly and accurately locate the lead protective device to avoid the detection area of ​​the imaging device, thereby improving the detection efficiency of the radiology department.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a protective device capable of automatic tracking. Background Art

[0002] X-rays can be used for radiation diagnosis and tumor radiotherapy. Common X-ray diagnostic equipment includes ordinary X-ray machines (X-ray fluoroscopy, computerized X-ray system (CR), direct digital X-ray system (DR)), computerized tomography (CT), digital subtraction angiography system (DSA), etc. Since X-rays can penetrate the human body and produce biological effects, which may cause harm to the body, it is necessary to provide radiation protection for non-irradiated parts, sensitive organs and tissues (such as eyes, thyroid gland, gonads).

[0003] The traditional radiation method requires patients to wear lead clothes, lead caps, lead aprons and other equipment. Since the device is relatively bulky and cannot flexibly avoid the parts that need to be irradiated, the protection effect is poor and the efficiency is low. In order to solve this problem, lead curtain protection devices are currently available on the market. The device adjusts the position of the lead curtain to avoid radiation exposure outside the irradiation field. This method solves the inconvenience caused by patients holding protective equipment, and the position of the lead curtain can be directly adjusted by medical staff. However, the positioning of the lead curtain is determined by subjective judgment, which is easy to cause the detection area to be covered or insufficiently covered, which is still very inconvenient; and medical staff repeatedly adjust the position of the lead curtain, which will also reduce the detection efficiency. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a protective device that can automatically track to solve the defects of the prior art.

[0005] The embodiment of the present invention provides a protective device capable of automatic tracking, comprising: a lead protective device, a light detection device, a driving mechanism and a controller;

[0006] The lead protection device is installed on the driving mechanism and can be driven by the driving mechanism to move in translation;

[0007] The light detection device is fixedly mounted on the lead protection device and is located on one side of the lead protection device, and is used to sense the irradiation position of the visible light generated by the imaging device; the light detection device includes a plurality of light sensors arranged along the translation direction of the lead protection device, and the plurality of light sensors are respectively arranged on the surface of the lead protection device; the visible light is generated according to the ray emission angle of the imaging device;

[0008] The controller determines and controls the translation position of the lead protection device driven by the driving mechanism according to the position of the edge of the visible light illumination range detected between the multiple light sensors.

[0009] The automatically trackable protective equipment provided by an embodiment of the present invention comprises a lead protective device including a plurality of protective members which are arranged relatively to each other and have adjustable distances, and the controller is used to control the driving mechanism to drive the lead protective device so that visible light passes between the protective members.

[0010] The automatically trackable protective equipment provided by an embodiment of the present invention, the light detection device includes a light sensor, a signal processing unit and a signal transmitting unit connected in sequence, the light sensor is arranged on the surface of the lead protective device; the signal transmitting unit sends the signals of the multiple light sensors to the controller through wireless transmission.

[0011] The automatically trackable protective device provided in an embodiment of the present invention comprises a guide rail provided on the driving mechanism, the lead protective device can be slidably installed on the guide rail, and the driving mechanism is provided with a transmission component for driving the lead protective device to move on the guide rail.

[0012] The automatically trackable protective equipment provided by an embodiment of the present invention comprises: the guide rail is connected to a power source; an electrical connector is provided on the lead protective device; the electrical connector is electrically connected to the guide rail; and the electrical connector is connected to the light detection device via a wire.

[0013] The automatically trackable protective device provided by an embodiment of the present invention, the controller is also used to move the lead protective device to a position opposite to the transmitting end of the imaging device through the driving mechanism when the protective device is started.

[0014] The automatic tracking protective device provided by the embodiment of the present invention further includes an acoustic and visual reminder unit, and the acoustic and visual reminder unit is used to generate an acoustic and visual reminder under the control of the controller after the visible light passes through.

[0015] The automatically trackable protective equipment provided by an embodiment of the present invention, the light detection device also includes a filter arranged at the front end for filtering out light within a specific wavelength range.

[0016] The automatically trackable protective equipment provided by the embodiment of the present invention predetermines the irradiation area of ​​the imaging device based on the irradiation area of ​​the visible light determined by the optical sensor, thereby quickly and accurately positioning the lead protection device to avoid the detection area of ​​the imaging device, while protecting the patient to the greatest extent and improving the detection efficiency of the radiology department. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a schematic structural diagram of an automatically trackable protective device according to an embodiment of the present invention;

[0019] Figure 2 is a principle block diagram of an automatically trackable protective device according to an embodiment of the present invention;

[0020] Figure 3 is a principle block diagram of a signal flow of a light detection device and a controller according to an embodiment of the present invention;

[0021] Figure 4 is a principle block diagram of a light detection device according to one embodiment of the present invention;

[0022] Figure 5 is a principle block diagram of a signal flow of a light detection device and a controller according to another embodiment of the present invention;

[0023] Figure 6 It is a schematic structural diagram of an automatically trackable protective device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0025] Embodiment 1

[0026] See also Figure 1-2 An embodiment of the present invention provides an automatically trackable protective device, which is used in conjunction with an imaging device. Its structure includes a lead protective device 100 (using a manufacturing process similar to that of a lead curtain, and can be used for protection against X-rays, etc.), a light detection device 200, a drive mechanism 300 and a controller 400.

[0027] The light detection device 200 is mounted on the lead protection device 100 and is located on one side thereof. The lead protection device 100 is fixedly mounted on the driving mechanism 300 and can be driven to move by the driving mechanism 300. The controller 400 controls the driving mechanism 300 to drive the lead protection device 100 to move according to the detection signal of the light detection device 200.

[0028] In this embodiment, the light detection device 200 is used to sense the irradiation position of the visible light emitted by the imaging device, and the visible light is generated according to the ray emission angle of the imaging device. The light detection device 200 includes a plurality of light sensors 201, which are arranged on the surface of the lead protection device 100 and arranged along the moving direction of the lead protection device 100. By setting a plurality of light sensors 201 to directly determine the irradiation range of the visible light, the controller 400 determines and controls the translation position of the lead protection device 100 driven by the driving mechanism 300 according to the position of the edge of the detected visible light illumination range between the plurality of light sensors 201. If no visible light is detected from a certain light sensor 201, it can be determined that the light can only irradiate the corresponding irradiation range, and the lead protection device 100 only needs to be taken away from the irradiation area, which also speeds up the detection efficiency of the medical process.

[0029] The arrangement of the light sensors 201 mentioned in this embodiment does not require a strict linear arrangement, but only requires a continuous increase in the distance from the center point of the irradiation range, so that the lead protection device 100 can be moved to the corresponding position.

[0030] The automatically trackable protective device of this embodiment predetermines the irradiation area of ​​the imaging device based on the irradiation area of ​​the visible light determined by the light detection device 200, thereby quickly and accurately positioning the lead protective device to avoid the detection area of ​​the imaging device, while protecting the patient to the greatest extent and improving the detection efficiency of the radiology department.

[0031] Furthermore, a guide rail 301 may be provided on the driving mechanism 300, and the lead guard 100 may be slidably mounted on the guide rail 301. The guide rail 301 is provided on a fixing column 302, and the fixing column 302 may be fixed on a base 303 or other supporting structures. A transmission component, such as a pulley belt or a screw nut, is provided on the driving mechanism 300 to drive the lead guard to move on the guide rail 301.

[0032] The guide rail 301 can be connected to a power source, and an electrical connector is provided on the corresponding lead protection device 100, and the electrical connector is connected to the guide rail to achieve electrical connection. The electrical connector is connected to the light detection device 200 through a wire, so that the light detection device 200 is powered on.

[0033] like Figure 3As shown, the light detection device 200 includes a light sensor 201, a signal processing unit 202 and a signal transmitting unit 203 connected in sequence. The light sensor 201 is arranged on the surface of the lead protection device 100, and the signal transmitting unit 203 is wirelessly connected to the controller 400. After the light sensor 201 detects visible light, it transmits the signal to the signal processing unit 202, and sends it to the controller 400 through the transmitting unit 203, indicating that the lead protection device 100 needs to be translated away from the irradiation area. When the light sensor 201 cannot detect visible light, it is considered that it has moved to the appropriate position. See Figure 4 The signal processing unit may be composed of an analog-to-digital converter AD and a processor MCU connected in sequence.

[0034] A filter can be provided at the front end of the light detection device 200 to filter out visible light of a specific wavelength (such as filtering light with a wavelength above 700nm), so that the light detection device 200 only detects visible light emitted by the imaging device, thereby avoiding interference of ambient light on the detection.

[0035] Before the test, the protective equipment can be activated by the medical staff by pressing a button, or a sensor can be set up to detect the position of the imaging device. If the imaging device is detected to move, it is considered that the examination is about to begin, so the protective equipment is activated and a reset action is performed.

[0036] The reset action performed during the startup phase may include moving the lead protection device 100 to a position (such as a center line position) relative to the transmitting end of the imaging device (generally a tube) through the driving mechanism 300, which facilitates subsequent positioning and also plays a protective role so that the radiation is directly emitted to prevent it from affecting other parts that do not need to be detected.

[0037] When the process is finished, a reminder can be given by sound or by highlighting or flashing the screen (or icon) to remind the medical staff that the lead protection device 100 has been moved to a suitable position. Correspondingly, the automatically trackable protection device of this embodiment may include an audio-visual reminder unit for generating an audio-visual reminder under the control of the controller after the visible light passes through.

[0038] Embodiment 2

[0039] The protective device also includes a housing and a slider assembly disposed inside the housing, wherein a guide rail 301 is vertically disposed on the inner wall of the housing and is provided with a gap for passing through. The guide rail 301 includes a slide rail and a conductive portion. A transmission assembly (such as a pulley belt or a screw nut) is vertically fixed and disposed inside the housing.

[0040] The slider assembly includes a base, a connector and a slider. The connector is fixed to a side of the base close to the transmission assembly and is installed on the transmission assembly. The bracket is fixed to a side of the base away from the transmission assembly and passes through a gap for installing the lead protection device 100. The sliders are respectively fixed to both sides of the base, and a sliding portion is provided on a side of the slider close to the inner wall of the shell.

[0041] Preferably, the slide rail is columnar, and the sliding portion is sleeved on the guide rail 301, so that the slide rail can assist in fixing and guiding the slider assembly.

[0042] In addition, the conductive part is arranged in a strip shape and can be connected to a power source. The electrical connector is electrically connected to the conductive part, and the electrical connector can be used to supply power to the light detection device 200. When the driving mechanism drives the lead protection device 100 to move, the electrical connector moves on the strip-shaped conductive part and can always contact the conductive part, thereby ensuring the supply of power to the light detection device 200.

[0043] Further, the electrical connector includes a rotor, a rotating shaft and a connecting seat, and the rotor is arranged at the end and in rolling contact with the conductive part, thereby reducing the friction between the electrical connector and the conductive part, thereby reducing the resistance to the movement of the lead protection device 100. The rotor is sleeved on the rotating shaft, and the rotating shaft is fixed on the connecting seat. It should be understood that the rotor, the rotating shaft, and the connecting seat in this embodiment are all conductive parts, thereby ensuring connection with the power supply.

[0044] Embodiment 3

[0045] In the automatically trackable protective device of this embodiment, the lead protective device includes a plurality of protective members 101 that are arranged opposite to each other and whose distances are adjustable, and the optical sensors are respectively arranged on the side of the protective members 101 close to other protective members 101. The controller 400 is used to control the driving mechanism 300 to drive the lead protective device so that visible light passes between the protective members 101.

[0046] Each protective element 101 of this embodiment can be a square, a fan or other preset shape, and these protective elements are in the same plane. When started, the protective elements 101 are spliced ​​together to form a complete lead protective device 100, so that its center or a specified position is aligned with the transmitting end of the imaging device.

[0047] Preferably, two protective members 101 with adjustable distances are provided. When the protective device is vertical, the two protective members 101 can be controlled to move in the vertical direction; when the protective device is horizontal, the two protective members 101 can be controlled to move in the horizontal direction.

[0048] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A protective device capable of automatic tracking, characterized in that: include: Lead protection devices, light detection devices, drive mechanisms and controllers; The lead protection device is installed on the driving mechanism and can be driven by the driving mechanism to move in translation; The light detection device is fixedly mounted on the lead protection device and is located on one side of the lead protection device, and is used to sense the irradiation position of the visible light generated by the imaging device; the light detection device includes a plurality of light sensors arranged along the translation direction of the lead protection device, and the plurality of light sensors are respectively arranged on the surface of the lead protection device; the visible light is generated according to the ray emission angle of the imaging device; The controller determines the translation position that the drive mechanism needs to drive the lead protection device to reach according to the detected position of the edge of the visible light illumination range between the multiple light sensors; The light detection device comprises a light sensor, a signal processing unit and a signal transmitting unit connected in sequence; the signal transmitting unit transmits the signals of the plurality of light sensors to the controller via wireless transmission; The driving mechanism is provided with a guide rail, the lead protection device is slidably mounted on the guide rail, and the driving mechanism is provided with a transmission assembly for driving the lead protection device to move on the guide rail; the lead protection device includes a plurality of protection members that are relatively arranged and have adjustable distances, and the controller is used to control the driving mechanism to drive the lead protection device so that visible light passes between the protection members; The guide rail is connected to a power source, the lead protection device is provided with an electrical connector, the electrical connector is electrically connected to the guide rail, and the electrical connector is connected to the light detection device through a wire; The guide rail includes a slide rail and a conductive part, the conductive part is arranged in a strip shape and can be connected to a power source, the electrical connector includes a rotor, a rotating shaft and a connecting seat, the rotor is arranged at the end and is in rolling contact with the conductive part, the rotor is sleeved on the rotating shaft, and the rotating shaft is fixed on the connecting seat, and the rotor, the rotating shaft and the connecting seat are all conductive components.

2. The automatically trackable protective device according to claim 1, characterized in that: The controller is also used to move the lead protection device to a position opposite to the transmitting end of the imaging device through the driving mechanism when the protection device is started.

3. The automatically trackable protective device according to claim 1, characterized in that: The automatically trackable protective device further comprises an audible and visual reminder unit, and the audible and visual reminder unit is used to generate audible and visual reminders under the control of the controller after the visible light passes through.

4. The automatically trackable protective device according to claim 1, characterized in that: The light detection device also includes a filter arranged at the front end for filtering out light within a specific wavelength range.

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