Self-projection C-arm X-ray machine

Abstract

The self-projection C-arm X-ray machine provided by the utility model comprises a C-arm X-ray machine body, the C-arm X-ray machine body comprises an X-ray bulb tube and an image enhancement device, and the self-projection C-arm X-ray machine is characterized by comprising a projector and a reflection device; the projector is fixed with the C-arm X-ray machine body; the reflecting device can reflect light passing through a main optical axis of a lens of the projector to the position below an X-ray bulb tube of the C-arm X-ray machine body, and enables the reflected light passing through the main optical axis of the lens of the projector to coincide with the main optical axis of the X-ray bulb tube. After an image output by the projector and an actual X-ray image are equal in size and coincide, the effect that what you see is what you get is achieved, panoramic observation of a perspective area of the X-ray machine is achieved, compared with the prior art, occupied space is small, and operation space is effectively widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to be applied to c arm X -ray machine and navigation method, especially a kind of self-projection C arm X -ray machine. BACKGROUND

[0002] Surgical traditional operation mode incision is big, bleeding is much, to organism damage is big, postoperative not only scar is big, influence beautiful appearance;And it can cause relevant complication. With the development of minimally invasive surgery, it is expected to complete surgery through small incision or percutaneous puncture. But this depends on the percutaneous accurate positioning of target in body and the accurate path navigation to the target.

[0003] Chinese patent application No.201920068139.8 utility model patent discloses a kind of laser positioner and surgical navigation system based on C arm X -ray machine, which is installed at the end of C arm X -ray machine image intensifier and can generate visible laser beam, and accurate navigation to target in body is completed by laser beam. However, the following problems exist in this patent, first, the size of the laser positioner is relatively large, it is installed at the end of image intensifier, to obtain sufficient perspective field of view, the patient needs to be as close to image intensifier as possible, so that the space from laser positioner to patient's body surface is greatly reduced, which is not conducive to the operation of surgeon. Second, the navigation of laser beam depends on the movement of stepper motor, and the stepper motor is prone to jam, step loss and noise during movement, which can cause navigation accuracy to decrease and interfere with the operation process. Third, laser beam can only navigate and position a single target, and cannot realize panoramic display of targets in surgical area and simultaneous positioning of multiple targets. Fourth, the laser positioner has metal components such as laser generating tube that are not transparent to X -rays, and these components are located in the X -ray projection area, which can block the surgical target of human body and affect imaging. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the self-projection C arm X -ray machine and navigation method provided by the utility model can effectively solve the technical problems existing in the prior art, have simple structure, occupy small volume, and effectively widen the surgical space. During operation, the machine does not need to be moved, and panoramic observation of the perspective area of the X -ray machine can be realized.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A self-projection C arm X -ray machine, comprising a C arm X -ray machine body, the C arm X -ray machine body comprising an X -ray tube and an image intensifier device, a projector and a reflecting device; the projector is fixed with the C arm X -ray machine body; the reflecting device can reflect the light through the lens main optical axis of the projector to the X -ray tube of the C arm X -ray machine body below, and the reflected light through the lens main optical axis of the projector coincides with the main optical axis of the X -ray tube.

[0007] The self-projection C-arm X-ray machine provided by the utility model, preferably, the projector is fixed to the side of the X-ray tube, the lens direction of the projector is towards the image enhancement device, the lens center of the projector is at the same horizontal height as the X-ray tube, the lens exit angle of the projector is the same as the exit angle of the X-ray tube, the reflecting device comprises first and second plane mirrors which are parallel to each other, the mirror surfaces of the first and second plane mirrors are opposite to each other, the mirror surface of the first plane mirror is obliquely opposite to the lens of the projector, if the exit light ray direction of the main optical axis of the lens of the projector is vertically downward, the included angle between the first plane mirror and the horizontal plane is 45°, after the exit light ray of the main optical axis of the lens of the projector is reflected by the first plane mirror, the light ray is irradiated to the second plane mirror and then reflected by the second plane mirror to be parallel to the main optical axis direction of the lens of the projector, and the second plane mirror is below the X-ray tube.

[0008] The light ray reflected by the second plane mirror is consistent with the light ray emitted by overlapping the focal point of the lens of the projector and the focal point of the X-ray tube.

[0009] The self-projection C-arm X-ray machine provided by the utility model, preferably, the reflecting device comprises a tubular shell with both ends sealed, the first and second plane mirrors are fixed in the tubular shell, the first and second plane mirrors are respectively located at both ends of the tubular shell, the upper surface of the tubular shell is provided with a light inlet, the lower surface of the tubular shell is provided with a light outlet, the light inlet is opposite to the mirror surface of the first plane mirror, the light outlet is opposite to the mirror surface of the second plane mirror, and the light inlet wraps the lens of the projector.

[0010] The self-projection C-arm X-ray machine provided by the utility model, preferably, further comprises a control module, the control module is electrically connected with the projector, and the control module can transmit the transmission image obtained by the C-arm X-ray machine body to the projector.

[0011] The self-projection C-arm X-ray machine provided by the utility model, preferably, the reflecting device comprises a first plane mirror, the mirror surface of the first plane mirror is obliquely opposite to the lens of the projector, if the main optical axis of the lens of the projector is in a horizontal direction, the included angle between the first plane mirror and the horizontal plane is 45°, and after the exit light ray of the main optical axis of the lens of the projector is reflected by the first plane mirror, the main optical axis of the lens of the projector is vertical.

[0012] The self-projection C-arm X-ray machine provided by the utility model, preferably, step S101: starting the C-arm X-ray machine to perform perspective on the patient's body, and the projector projects the obtained perspective image to the patient's body surface;

[0013] Step S102: marking and distinguishing the target points on the obtained fluoroscopy image of the C-arm X-ray machine by using different colors, wherein the fluoroscopy image projected to the patient's body surface is the fluoroscopy image after the marking and distinguishing.

[0014] The technical scheme has the following advantages or beneficial effects:

[0015] The self-projection C-arm X-ray machine comprises a C-arm X-ray machine body, the C-arm X-ray machine body comprises an X-ray ball tube and an image enhancement device, and the self-projection C-arm X-ray machine is characterized in that the self-projection C-arm X-ray machine comprises a projector and a reflecting device; the projector is fixed to the side surface of the X-ray ball tube; the lens direction of the projector is towards the image enhancement device; the reflecting device comprises first and second plane mirrors which are parallel to each other; the first and second plane mirrors form a periscope structure; the light emitted by the projector is reflected to the lower side of the X-ray ball tube through the first and second plane mirrors; and the light reflected by the second plane mirror is consistent with the light emitted by the projector with the focal point of the lens and the focal point of the X-ray ball tube being coincident. The image output by the projector is equal to the actual X-ray image, and after the image output by the projector and the actual X-ray image are coincident, the effect of "what you see is what you get" is achieved, panoramic observation of the fluoroscopy area of the X-ray machine is realized, and the self-projection C-arm X-ray machine occupies a smaller volume compared with the prior art, and the operation space is effectively widened. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model and its features, shape and advantages will become more apparent by reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings. The same reference signs indicate the same parts throughout the drawings. The drawings are not necessarily drawn to scale, and the emphasis is on showing the main principles of the utility model.

[0017] Fig. 1 is a structure schematic view of a self-projection C-arm X-ray machine provided by the utility model embodiment 1;

[0018] Fig. 2 is a structure schematic view of a reflecting device provided by the utility model embodiment 1. DETAILED DESCRIPTION

[0019] The utility model will be further described below in combination with the accompanying drawings and specific embodiments, but not as the limitation of the utility model.

[0020] Embodiment 1:

[0021] As Figs. 1-2The utility model discloses a kind of self-projection C-arm X-ray machines shown in embodiment 1, including C-arm X-ray machine body 0, C-arm X-ray machine body 0 including X line bulb 01 and image intensifier 02, including projector 1 and reflecting device 2;Projector 1 is fixed on the side of X line bulb 01;The lens direction of projector 1 is towards image intensifier 02;The lens center of projector 1 is at the same horizontal height with X line bulb 01;The lens exit angle of projector 1 is same with the exit angle of X line bulb 01;Reflecting device 2 includes mutually parallel first plane mirror 21 and second plane mirror 22;The mirror surface of first plane mirror 21 and second plane mirror 22 is opposite;The mirror surface of first plane mirror 21 is obliquely opposite the lens of projector;If the exit optical axis direction of projector 1 is vertically downward, the included angle between first plane mirror and horizontal plane is 45 °;If the exit light of the lens main optical axis of projector 1 is reflected after first plane mirror 21, irradiates to second plane mirror 22, and is parallel with the lens main optical axis direction of projector after being reflected by second plane mirror 22 again;Second plane mirror 22 is located below X line bulb 01;Wherein, the light that is reflected by second plane mirror 22 is consistent with the light that is shot when the lens focal point of projector 1 and the focal point of X line bulb 01 coincide, reach the lens focal point of projector 1 and the focal point of X line bulb 01 " equivalent " coincide.The " equivalent " coincide in the embodiment of the utility model means that the image irradiated by projector is on patient's body, and the size and position of transmission diagram in patient's body are completely consistent.By being at the same horizontal height with the lens center of projector 1 and X line bulb 01;And the lens exit angle of projector 1 is same with the exit angle of X line bulb 01;It can be ensured that the light reflected by reflecting device 2 and the X light shot by X line bulb 01 coincide when the light of projector 1 is reflected to the right below X line bulb 01.

[0022] Since there are many metal components in projector 1, if the lens focal point of projector and the focal point of X line bulb 01 are physically coincided directly, it can cause interference to X ray emitted by X line bulb 01, affect subsequent transmission diagram, therefore, by setting reflecting device 2, lens focal point of projector 1 set on the side of X line bulb 01 is moved to the below of X line bulb 01, so that the lens focal point of X line bulb 01 and the focal point of X line bulb 01 " equivalent " coincide, reach the same effect of physical coincidence of the lens focal point of projector and the focal point of X line bulb 01.

[0023] When the self-projection C-arm X-ray machine provided by the embodiment 1 of the utility model is used, the X-ray tube 01 of the C-arm X-ray machine body works to obtain a transmission image by transmitting the patient's body; the C-arm X-ray machine body transmits the transmission image to the projector 1, and the projector 1 projects the transmission image on the patient's body; since the center point of the projector 1 and the focal point of the X-ray tube 01 are equivalent to coincide, the projected image on the patient's body is completely consistent with the transmission image inside the patient's body, and is one-to-one corresponding to the size and position inside the patient's body, so that the effect of "what you see is what you get" is achieved, and the doctor directly performs surgical operation according to the image projected on the patient's body. After the image output by the projector of the utility model and the actual X-ray image are equal and coincide, how large the X-ray perspective area is, the doctor can directly obtain the corresponding size of the projected image, the doctor performs surgical operation on the lesion according to the image projected on the patient's body, the effect of "what you see is what you get" is achieved, panoramic observation of the perspective area of the X-ray machine is realized, and the volume occupied by the utility model is small compared with the prior art, so that the surgical space is effectively widened.

[0024] In order to ensure the projection effect of the projector and avoid light scattering of the projector, in the preferred embodiment of the utility model, the reflecting device 2 comprises a tubular shell 23 with both ends sealed; the first plane mirror 21 and the second plane mirror 22 are fixed in the tubular shell 23; the first plane mirror 21 and the second plane mirror 22 are respectively located at both ends of the tubular shell 23; the upper surface of the tubular shell 23 is provided with a light inlet 24; the lower surface of the tubular shell is provided with a light outlet 25; the light inlet 24 faces the mirror surface of the first plane mirror 22; the light outlet 5 faces the mirror surface of the second plane mirror 22; a periscope structure is formed; the light inlet 24 in the embodiment completely wraps the lens of the projector 1 by arranging another tubular structure.

[0025] In the self-projection C-arm X-ray machine provided by the embodiment 1 of the utility model, preferably, a control module is further included; the control module is electrically connected with the projector 1; the control module can transmit the transmission image obtained by the C-arm X-ray machine body 0 to the projector 1. In the embodiment, as long as the control module can send the transmission image obtained by the X-ray machine body 0 to the projector 1, for example, the control module can be a computer host that controls the work of the X-ray machine body 0, the computer host transmits the obtained transmission image information to the projector 1, and the projector projects the transmitted transmission image.

[0026] In another embodiment of the utility model, the reflection device comprises a first plane mirror; the lens main optical axis of the projector is in a horizontal direction, and the mirror surface of the first plane mirror is opposite to the lens of the projector; if the lens main optical axis of the projector is in a horizontal direction, the included angle between the first plane mirror and the horizontal plane is 45 degrees; after the outgoing light ray of the lens main optical axis of the projector is reflected by the first plane mirror, the lens main optical axis of the projector is perpendicular, and the mirror surface of the first plane mirror faces downward. The embodiment 2 of the utility model reduces a plane mirror for reflection, and simultaneously sets the lens main optical axis of the projector to a horizontal direction, but the principle is consistent with that of the embodiment 1, and the light ray reflected by the lens main optical axis of the projector is coincided with the main optical axis of the X-ray tube, so that the focal point of the lens of the projector is physically coincided with the X-ray focal point in the X-axis and Z-axis directions, and the image output by the projector is equivalent to the actual X-ray image in the Y-axis direction.

[0027] Embodiment 3: when the self-projection C-arm X-ray machine provided in the embodiment 1 of the utility model is used for navigation, the specific implementation method is as follows:

[0028] Step S101: starting the C-arm X-ray machine to perform perspective on the patient's body, and the projector projects the obtained perspective image to the patient's body surface;

[0029] Step S102: marking and distinguishing the target point on the obtained perspective image of the C-arm X-ray machine by using different colors, and at this time, the perspective image projected to the patient's body surface is the perspective image after marking and distinguishing.

[0030] In the process of using the C-arm X-ray machine by the doctor, through step S101, the projector 1 projects the perspective image to the patient's body surface, and the "what you see is what you get" effect of the target in the human body is realized, the doctor performs surgical operation on the lesion according to the image projected on the patient's body, and panoramic observation of the perspective area of the X-ray machine is realized. Moreover, through step S103, the doctor can use the graphic processing software embedded in the computer host to color the perspective image obtained by the C-arm X-ray machine, and mark and distinguish the target point by using different colors; the image projected on the patient's body will be the colored image; through the light beams of different colors projected on the patient's body, the precise navigation of the single target is achieved.

[0031] Those skilled in the art should understand that the skilled person in the art can realize the change example in combination with the prior art and the above-mentioned embodiments, which is not described here. Such change example does not affect the essential content of the utility model, which is not described here.

[0032] The preferred embodiments of the present application are described above. It should be understood that the present application is not limited to the specific embodiments described above, wherein the devices and structures not described in detail should be understood as being implemented in the ordinary way in the art; any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application without departing from the spirit of the present application, or modify equivalent embodiments of equivalent changes, which does not affect the essential content of the present application. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the technical solutions of the present application, still belongs to the scope of protection of the technical solutions of the present application.

Claims

1. A self-projection C-arm X-ray machine, comprising a C-arm X-ray machine body, wherein the C-arm X-ray machine body includes an X-ray tube and an image intensifier, characterized in that, It includes a projector and a reflecting device; the projector is fixed to the C-arm X-ray machine body; the reflecting device can reflect the light rays passing through the main optical axis of the projector lens to the area below the X-ray tube of the C-arm X-ray machine body, and make the reflected light rays passing through the main optical axis of the projector lens coincide with the main optical axis of the X-ray tube.

2. The self-projection C-arm X-ray machine as described in claim 1, characterized in that, The projector is fixed to the side of the X-ray tube; the lens of the projector faces the image intensifier; the center of the projector's lens is at the same horizontal height as the X-ray tube; the exit angle of the projector's lens is the same as the exit angle of the X-ray tube; the reflecting device includes a first plane mirror and a second plane mirror that are parallel to each other; the mirror surfaces of the first plane mirror and the second plane mirror face each other; the mirror surface of the first plane mirror is obliquely facing the projector's lens; if the direction of the light rays emitted through the principal optical axis of the projector's lens is vertically downward, the angle between the first plane mirror and the horizontal plane is 45°; the light rays emitted through the principal optical axis of the projector's lens are reflected by the first plane mirror, then illuminate the second plane mirror, and after being reflected again by the second plane mirror, are parallel to the direction of the principal optical axis of the projector's lens; the second plane mirror is located below the X-ray tube. The light reflected by the second plane mirror is the same as the light emitted when the focal point of the projector lens coincides with the focal point of the X-ray tube.

3. The self-projection C-arm X-ray machine as described in claim 2, characterized in that, The reflecting device includes a tubular housing sealed at both ends; a first plane mirror and a second plane mirror are fixed inside the tubular housing; the first plane mirror and the second plane mirror are respectively located at both ends of the tubular housing; a light inlet is provided on the upper surface of the tubular housing; a light outlet is provided on the lower surface of the tubular housing; the light inlet faces the mirror surface of the first plane mirror; the light outlet faces the mirror surface of the second plane mirror; the light inlet encloses the lens of the projector.

4. The self-projection C-arm X-ray machine as described in claim 2, characterized in that, It also includes a control module; the control module is electrically connected to the projector; the control module can transmit the transmission image obtained by the C-arm X-ray machine body to the projector.

5. The self-projection C-arm X-ray machine as described in claim 1, characterized in that, The reflecting device includes a first plane mirror; the mirror surface of the first plane mirror is obliquely facing the lens of the projector; the principal optical axis of the projector lens is horizontal, and the angle between the first plane mirror and the horizontal plane is 45°; the light rays emitted through the principal optical axis of the projector lens are reflected by the first plane mirror and then the principal optical axis of the projector lens is perpendicular.

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