CN218186810U

CN218186810U - Beam limiter LED light path adjusting device and beam limiter

Info

Publication number: CN218186810U
Application number: CN202221645133.0U
Authority: CN
Inventors: 孙骞; 唐时浩; 夏万良
Original assignee: Xiaozhi Future Chengdu Technology Co ltd
Current assignee: Xiaozhi Future Chengdu Technology Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2023-01-03
Anticipated expiration: 2032-06-29

Abstract

The application discloses beam limiter LED light path adjusting device, including the installing support of fixed mounting in the beam limiter, the fixedly connected with light source support can be dismantled on the installing support, install the LED light source on the light source support to and be used for restricting the lamp shade of LED light source light beam, be provided with the light trap that supplies the light to jet out on the lamp shade, be provided with the bar hole that is used for fixed mounting and adjusts light source support on the installing support, bar hole length place direction with jet out the central light place direction of light trap is parallel. The utility model provides a LED light path adjusting device can install in the beam limiting device of different models, through adjusting the relative position between light source support and the installing support for the light source sees through the aperture adjustable of beam limiting device, thereby satisfies different beam limiting device, and the different radiation field that different X ray sources produced is inconsistent with the light field, and the problem that leads to the erroneous judgement is not coincided.

Description

Beam limiter LED light path adjusting device and beam limiter

Technical Field

The utility model relates to an accurate irradiation apparatus field of X ray especially relates to a limit for a beam ware field for X ray, concretely relates to limit for a beam ware LED light path adjusting device and limit for a beam ware.

Background

The beam limiter is an electromechanical optical device installed in front of the output window of the X-ray tube assembly tube sleeve, and has the main function of controlling the radiation field of the output line of the X-ray tube so as to reduce the projection range as much as possible and avoid unnecessary dosage on the premise of meeting X-ray imaging and diagnosis, absorb some scattered rays and improve the image definition. In addition, it can indicate the projection center and the size of the projection field of view. The beam limiter is therefore an indispensable auxiliary device for X-ray projection and protection.

The beam limiter is classified according to the opening and closing implementation modes of the lead leaves of the beam limiter, and can be generally divided into a manual beam limiter, an electric beam limiter and a full-automatic beam limiter, the purpose of finally achieving the purpose is achieved by special means, and manual control and intervention on a ray field are achieved so as to achieve the effect of an expected irradiation range. From structural complexity, the full-automatic beam limiter is the most complex, and compared with an electric beam limiter, a position sensing unit and a feedback unit are additionally arranged. The existing manual beam limiter has various designed structures, or the position of a lead blade is changed by adopting a simple deflection plate, but the stability is poor and the precision is low; or the belt is connected with the sliding block to drive the lead blade to change the position, thereby realizing the technical effect of beam limitation.

In the prior art, the most common positioning method is to arrange a cross-shaped shading material capable of shading visible light in the cross section of an X-ray irradiation path, so that a cross-shaped light shadow can be formed in an irradiated light field, the light shadow is used for indicating the center of the radiation field, but a light source used in a beam limiter belongs to a point-shaped light source, and based on the linear propagation principle of light, if the irradiation range (generally called as the light field) of the light source and the X-related irradiation range (generally called the radiation field) are not coincident, an operation technician visually judges that the actual X-ray irradiation range is not consistent, so that a target part is not completely covered or excessively covered, and thus, a high-quality X-ray film cannot be obtained, and a greater radiation injury can be caused to a human body.

In view of this, it is necessary to provide a beam limiter with an adjustable optical path, so that after the X-ray tube tubes of different models are replaced, the beam limiter can still match the radiation field thereof, so that the radiation field and the optical field are always overlapped, and thus an operation technician can clearly determine the radiation coverage area through naked eyes, thereby avoiding the problem of missing radiation or multiple radiation.

Disclosure of Invention

In order to solve the technical problem of accurate irradiation of an X-ray device in the using process, the application provides a multi-light-path collection beam limiter for realizing accurate beam limiting of X-rays, realizing arbitrary adjustment of the length direction and/or the width direction of a horizontal section of a ray field in an effective adjustment range, and simultaneously integrating positioning laser, visible light irradiation and the X-rays to realize accurate restriction and adjustment of the X-rays. Meanwhile, the invention also provides a method for realizing the light path and ray restraint by using the beam limiter.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

the utility model provides a beam limiter LED light path adjusting device, includes the installing support of fixed mounting in the beam limiter, can dismantle fixedly connected with light source support on the installing support, install the LED light source on the light source support to and be used for restricting the lamp shade of LED light source light beam, be provided with the light trap that supplies the light to jet out on the lamp shade, be provided with the bar hole that is used for fixed mounting and adjusts light source support on the installing support, bar hole length place direction with jet out the central light place direction of light trap is parallel.

The application also provides a beam limiter, which comprises the beam limiter LED light path adjusting device, and the beam limiter LED light path adjusting device comprises a beam limiter outer shell, a first beam limiting unit and a second beam limiting unit, wherein the first beam limiting unit and the second beam limiting unit are arranged in the outer shell and used for limiting the size of the cross section of a ray;

the first beam limiting unit comprises a first adjusting mechanism, a first beam limiting mechanism and a second beam limiting mechanism which are oppositely arranged, and the opening and closing degrees of the first beam limiting mechanism and the second beam limiting mechanism are controlled by the first adjusting mechanism;

the second beam limiting unit comprises a second adjusting mechanism, a third beam limiting mechanism and a fourth beam limiting mechanism which are oppositely arranged, and the opening and closing degree of the third beam limiting mechanism and the fourth beam limiting mechanism is controlled by the second adjusting mechanism;

the projection of the shape defined by the first beam limiting mechanism, the second beam limiting mechanism, the third beam limiting mechanism and the fourth beam limiting mechanism on a plane vertical to the central ray is the shape of the section of the ray.

Preferably, the first adjusting mechanism comprises a first knob for adjusting the first beam limiting mechanism and the second beam limiting mechanism, the first knob is coaxially connected with a first adjusting rod, the end of the first adjusting rod is fixedly connected with a first gear, the first gear is meshed with a fluted disc, the fluted disc is coaxially connected with a second gear, the second gear is also meshed with a third gear, and the diameters and the numbers of teeth of the second gear and the third gear are the same; the upper ends of the first beam limiting mechanism and the second beam limiting mechanism are hinged with the beam limiter outer shell, and the second gear and the third gear are hinged with the first beam limiting mechanism and the second beam limiting mechanism through shaft pins respectively and control the opening and closing degree.

Still further preferably, the second adjusting mechanism comprises a second knob for adjusting a third beam limiting mechanism and a fourth beam limiting mechanism, the second knob is coaxially connected with a second adjusting rod, the end of the second adjusting rod is fixedly connected with a fourth gear, the fourth gear is sequentially meshed with a fifth gear and a sixth gear, and the diameters and the tooth numbers of the fifth gear and the sixth gear are the same; the upper end heads of the third beam limiting mechanism and the fourth beam limiting mechanism are hinged with the beam limiter outer shell, and the fifth gear and the sixth gear are hinged with the third beam limiting mechanism and the fourth beam limiting mechanism through shaft pins respectively and control the opening and closing degree.

As one of optional preferred schemes, the lower ends of the first beam limiting mechanism, the second beam limiting mechanism, the third beam limiting mechanism and the fourth beam limiting mechanism are respectively provided with a lead plate for shielding X-rays, the thickness and the width of the lead plate are suitable for effectively blocking the X-rays, and the thickness and the width can be increased as much as possible on the premise that the structural space allows and meets the use requirement.

Advantageous effects

The utility model provides a LED light path adjusting device can install in the beam limiting device of different models, through adjusting the relative position between light source support and the installing support for the light source sees through the aperture adjustable of beam limiting device, thereby satisfies different beam limiting device, and the different radiation field that different X ray sources produced is inconsistent with the light field, and the problem that leads to the erroneous judgement is not coincided.

The utility model discloses a realize the regulation of the light field for arbitrary beam limiter will no longer confine to and match with the X ray source (being the bulb) of single model, make beam limiter under the prerequisite that reaches the same technological effect, can have more broad matching scope, thereby improve beam limiter's compatibility and practicality.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a structural perspective view of the optical path adjusting apparatus.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a beam limiter with an optical path adjusting device.

Fig. 4 is an enlarged view of a selected portion of the circle in fig. 3.

Fig. 5 is a top view of fig. 3.

Fig. 6 is a schematic view showing a state where the radiation field and the light field overlap each other.

FIG. 7 is a comparative illustration of the field and light field before and after changing different bulbs and adjusting the light path.

In the figure: 1-mounting a bracket; 2-a light source holder; 3-an LED light source; 4-a lampshade; 5-light hole; 6-strip-shaped holes; 7-a first knob; 8-a first adjusting lever; 9-a first gear; 10-a fluted disc; 11-a second gear; 12-a third gear; 13-a first beam limiting mechanism; 14-a second beam limiting mechanism; 15-a second knob; 16-a second adjustment lever; 17-a fourth gear; 18-fifth gear; 19-sixth gear; 20-a third beam limiting mechanism; 21-fourth beam limiting mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on that shown in the drawings or that the product of the application is used as it is, this is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

combine a beam limiter LED light path adjusting device that fig. 1 and fig. 2 show, including fixed mounting 1 at the beam limiter in, the fixedly connected with light source support 2 can be dismantled on the installing support 1, install LED light source 3 on the light source support 2 to and be used for restricting the lamp shade 4 of 3 light beams of LED light source, be provided with the light trap 5 that supplies light to jet out on the lamp shade 4, be provided with the bar hole 6 that is used for fixed mounting and adjusts light source support 2 on the installing support 1, 6 length directions in bar hole are with jet out the central light place direction of light trap 5 is parallel.

The working principle is explained as follows:

the working principle of the optical path adjusting device provided by the embodiment is the same as that of the existing beam limiter light source, and the light source emits visible light which is reflected to the direction which is consistent with the X ray by the reflector arranged in the beam limiter, so that the light field and the radiation field are overlapped; under the visual state of naked eye, the light field is the field of launching for operating personnel can adjust to accurate shooting position through visual.

The present embodiment is different from the prior art in that the position adjustment of the LED light source 3 can be realized, as is well known, the light propagation form follows the straight line propagation, and passes through the constrained point light source, when the light source is closer to the constrained position, such as the light hole 5 of the present embodiment, the fan-shaped area formed by the light path is larger; otherwise, the smaller the size is; similarly, the X-rays emitted by the tube bulb serving as the radiation source are also in the same way, and when the distance between the tube bulb and the beam limiter is different, the regions of the X-ray set emitted by the tube bulb are also different, as shown in detail in fig. 7; the part filled with shadow is in a state that the distance of the bulb is far and the distance of the light source is close; the white unshaded part is in a state that the bulb tube is close to the light source; as can be seen from fig. 7, when the beam limiter and the matched bulb tube are replaced, the field of the beam limiter is also changed under the same opening degree, although the angle is relatively small, based on the principle of linear light propagation, when the X-ray film is actually taken, the distance is as long as 1 meter, or even longer, the field of the beam limiter is amplified by N times, and therefore, the field of the beam limiter and the field of the matched bulb tube are not overlapped seriously due to the difference.

If the field is larger than the light field, the transilluminated object will be exposed to a larger range of unnecessary X-rays; on the contrary, if the radiation field is smaller than the light field, the dose of the irradiated part may exceed the standard and bear more radiation, and meanwhile, the target area may not be covered completely, so that the condition of all the tissues of the target area cannot be clearly identified, and secondary transillumination is required, which undoubtedly causes unnecessary secondary damage to the patient. Based on the above, it can be seen that the LED light path adjusting device is very necessary. The most important point of the device is that the length direction of the strip-shaped hole 6 on the mounting bracket 1 is parallel to the direction of the central light ray which is emitted out of the light hole 5. Only in this way, the adjusting direction can be kept consistent with the central light beam, and the light field is converged or expanded by taking the central light beam as the center, so that the problem of light field inclination is avoided.

Example 2:

the present embodiment provides a beam limiter, which is shown in fig. 3-6 of the specification in detail, and specifically includes the LED light path adjusting device described in embodiment 1, including a beam limiter outer housing, a first beam limiting unit and a second beam limiting unit installed in the outer housing for limiting the size of a cross section of a ray;

the first beam limiting unit comprises a first adjusting mechanism, a first beam limiting mechanism 13 and a second beam limiting mechanism 14 which are oppositely arranged, and the opening and closing degree of the first beam limiting mechanism 13 and the second beam limiting mechanism 14 is controlled by the first adjusting mechanism; as shown in fig. 3, the first beam limiting unit adjusts the open and close states of two beam limiting mechanisms, namely a first beam limiting mechanism 13 and a second beam limiting mechanism 14, which are arranged in front of and behind the illustrated state;

the second beam limiting unit comprises a second adjusting mechanism, a third beam limiting mechanism 20 and a fourth beam limiting mechanism 21 which are oppositely arranged, and the opening and closing degree of the third beam limiting mechanism 20 and the fourth beam limiting mechanism 21 is controlled by the second adjusting mechanism; as shown in fig. 3, the second beam limiting unit adjusts the open/close states of two beam limiting mechanisms, i.e., a third beam limiting mechanism 20 and a fourth beam limiting mechanism 21, which are provided on the left and right in the illustrated state.

The projection of the shape enclosed by the first beam limiting mechanism 13, the second beam limiting mechanism 14, the third beam limiting mechanism 20 and the fourth beam limiting mechanism 21 on a plane perpendicular to the central ray is a ray cross-sectional shape.

In this embodiment, the first adjusting mechanism includes a first knob 7 for adjusting a first beam limiting mechanism 13 and a second beam limiting mechanism 14, the first knob 7 is coaxially connected with a first adjusting rod 8, an end of the first adjusting rod 8 is fixedly connected with a first gear 9, the first gear 9 is engaged with a fluted disc 10, the fluted disc 10 is coaxially connected with a second gear 11, the second gear 11 is further engaged with a third gear 12, and the diameters and the numbers of teeth of the second gear 11 and the third gear 12 are the same; the upper ends of the first beam limiting mechanism 13 and the second beam limiting mechanism 14 are hinged with the beam limiter outer shell, and the second gear 11 and the third gear 12 are respectively hinged with the first beam limiting mechanism 13 and the second beam limiting mechanism 14 through shaft pins and control the opening and closing degree. The second adjusting mechanism comprises a second knob 15 used for adjusting a third beam limiting mechanism 20 and a fourth beam limiting mechanism 21, the second knob 15 is coaxially connected with a second adjusting rod 16, the end of the second adjusting rod 16 is fixedly connected with a fourth gear 17, the fourth gear 17 is sequentially meshed with a fifth gear 18 and a sixth gear 19, and the diameters and the tooth numbers of the fifth gear 18 and the sixth gear 19 are the same; the upper ends of the third beam limiting mechanism 20 and the fourth beam limiting mechanism 21 are hinged with the beam limiter outer shell, and the fifth gear 18 and the sixth gear 19 are respectively hinged with the third beam limiting mechanism 20 and the fourth beam limiting mechanism 21 through shaft pins and control the opening and closing degree. As one of optional preferred solutions, lead plates for shielding X-rays are disposed at lower ends of the first beam limiting mechanism 13, the second beam limiting mechanism 14, the third beam limiting mechanism 20, and the fourth beam limiting mechanism 21, and the thickness and the width of each lead plate are suitable for effectively blocking X-rays, so that the thickness and the width of each lead plate can be increased as much as possible on the premise that the structural space allows and meets the use requirement.

When the opening of the beam limiter needs to be adjusted, the opening and closing degree of the front and back direction and the left and right direction of the X-ray can be adjusted only by respectively screwing the first knob 7 and the second knob 15, so that the current shooting requirement can be met.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a beam limiter LED light path adjusting device which characterized in that: including installing support (1) of fixed mounting in beam limiter, fixedly connected with light source support (2) can be dismantled on installing support (1), install LED light source (3) on light source support (2) to and be used for restricting lamp shade (4) of LED light source (3) light beam, be provided with light trap (5) that supply the light to jet out on lamp shade (4), be provided with bar hole (6) that are used for fixed mounting and adjust light source support (2) on installing support (1), bar hole (6) length place direction with jet out the central light place direction of light trap (5) is parallel.

2. A beam limiter comprising the beam limiter LED optical path adjusting device of claim 1, wherein: the beam limiting device comprises a beam limiter outer shell, a first beam limiting unit and a second beam limiting unit, wherein the first beam limiting unit and the second beam limiting unit are arranged in the outer shell and used for limiting the cross section size of rays;

the first beam limiting unit comprises a first adjusting mechanism, a first beam limiting mechanism (13) and a second beam limiting mechanism (14) which are arranged oppositely, and the opening and closing degree of the first beam limiting mechanism (13) and the second beam limiting mechanism (14) is controlled by the first adjusting mechanism;

the second beam limiting unit comprises a second adjusting mechanism, a third beam limiting mechanism (20) and a fourth beam limiting mechanism (21) which are oppositely arranged, and the opening and closing degree of the third beam limiting mechanism (20) and the fourth beam limiting mechanism (21) is controlled by the second adjusting mechanism;

the projection of the shape surrounded by the first beam limiting mechanism (13), the second beam limiting mechanism (14), the third beam limiting mechanism (20) and the fourth beam limiting mechanism (21) on a plane vertical to the central ray is a ray cross-sectional shape.

3. A beam limiter according to claim 2, wherein: the first adjusting mechanism comprises a first knob (7) used for adjusting a first beam limiting mechanism (13) and a second beam limiting mechanism (14), the first knob (7) is coaxially connected with a first adjusting rod (8), the end of the first adjusting rod (8) is fixedly connected with a first gear (9), the first gear (9) is meshed with a fluted disc (10), the fluted disc (10) is coaxially connected with a second gear (11), the second gear (11) is also meshed with a third gear (12), and the diameters and the tooth numbers of the second gear (11) and the third gear (12) are the same; the beam limiting device is characterized in that the upper ends of the first beam limiting mechanism (13) and the second beam limiting mechanism (14) are hinged with the beam limiting device outer shell, and the second gear (11) and the third gear (12) are hinged with the first beam limiting mechanism (13) and the second beam limiting mechanism (14) through shaft pins respectively and control the opening and closing degree.

4. A beam limiter according to claim 2 or claim 3, wherein: the second adjusting mechanism comprises a second knob (15) used for adjusting a third beam limiting mechanism (20) and a fourth beam limiting mechanism (21), the second knob (15) is coaxially connected with a second adjusting rod (16), the end of the second adjusting rod (16) is fixedly connected with a fourth gear (17), the fourth gear (17) is sequentially meshed with a fifth gear (18) and a sixth gear (19), and the diameters and the tooth numbers of the fifth gear (18) and the sixth gear (19) are the same; the upper end heads of the third beam limiting mechanism (20) and the fourth beam limiting mechanism (21) are hinged with the beam limiter outer shell, and the fifth gear (18) and the sixth gear (19) are hinged with the third beam limiting mechanism (20) and the fourth beam limiting mechanism (21) through shaft pins respectively and control the opening and closing degree.

5. A beam limiter according to claim 4, wherein: and the lower ends of the first beam limiting mechanism (13), the second beam limiting mechanism (14), the third beam limiting mechanism (20) and the fourth beam limiting mechanism (21) are provided with lead plates for shielding X-rays.