CN104644194B

CN104644194B - X-ray detector for diagnosis and buffer structure thereof

Info

Publication number: CN104644194B
Application number: CN201310597888.7A
Authority: CN
Inventors: 刘高岭; 陈涛; 刘鹏成; 尼古拉斯·R·康克乐
Original assignee: GE Medical Systems Global Technology Co LLC
Current assignee: GE Medical Systems Global Technology Co LLC
Priority date: 2013-11-22
Filing date: 2013-11-22
Publication date: 2021-09-14
Anticipated expiration: 2033-11-22
Also published as: CN104644194A

Abstract

The present invention relates to an X-ray detector for diagnosis and a buffer structure of an X-ray detector for diagnosis. The diagnostic X-ray detector comprises an induction unit, a supporting plate, a fixing piece and an elastic buffer piece. The sensing unit may sense X-rays to facilitate diagnostic imaging. The supporting plate is arranged below the sensing unit to support the sensing unit. The fixing piece is arranged below the supporting plate. The elastic buffer piece is integrally formed and arranged between the supporting plate and the fixing piece, and the position of the elastic buffer piece relative to the supporting plate and the fixing piece is fixed.

Description

X-ray detector for diagnosis and buffer structure thereof

Technical Field

The present invention relates to an X-ray detector and a buffer structure thereof, and more particularly, to an X-ray detector for diagnosis and a buffer structure thereof.

Background

An X-ray diagnostic system is a diagnostic imaging system, which is widely used to examine a human body, form image data, and facilitate diagnosis by a doctor. The X-ray detector, which is an important unit in an X-ray diagnostic system, directly affects the quality of diagnostic images of the system.

Generally, in the X-ray diagnosis process, an X-ray detector can sense the X-ray passing through a diagnostic object through a photosensitive unit arranged in the X-ray detector, and a data acquisition module is used for carrying out data acquisition on an X-ray signal sensed by the photosensitive unit and then transmitting the acquired X-ray signal to a control panel, so that the acquired data can be subsequently and continuously subjected to imaging processing.

The light sensing unit often includes a semiconductor material, such as a semiconductor material deposited on a glass substrate. Thus, during the detection by the X-ray detector, especially when the X-ray detector is portable, the X-ray detector may fall due to improper operation to cause impact on the detector, and particularly, the photosensitive unit including the glass material may be damaged. This does not facilitate extending the range of use of the X-ray detector.

Currently, there are some attempts to solve the problem of the X-ray detector being adversely affected by the impact on the detector. For example, a buffer member is provided between the support plate of the photosensitive unit and the bottom plate of the housing. However, the existing buffer member has a complex structure, is inconvenient to install and has high cost.

Therefore, it is desirable to provide a new diagnostic X-ray detector which not only can protect the X-ray detector well, but also has a simple structure and low cost.

Disclosure of Invention

One embodiment of the present invention provides an X-ray detector for diagnosis. The diagnostic X-ray detector comprises an induction unit, a supporting plate, a fixing piece and an elastic buffer piece. The sensing unit may sense X-rays to facilitate diagnostic imaging. The supporting plate is arranged below the sensing unit to support the sensing unit. The fixing piece is arranged below the supporting plate. The elastic buffer piece is integrally formed and arranged between the supporting plate and the fixing piece, and the position of the elastic buffer piece relative to the supporting plate and the fixing piece is fixed.

Another embodiment of the present invention provides a buffer structure of an X-ray detector for diagnosis. The buffer structure comprises a support plate, a fixing piece and an elastic buffer piece. The support plate is used for supporting the induction unit in the X-ray detector for diagnosis. The fixing piece is arranged below the supporting plate. And the elastic buffer piece is integrally formed and arranged between the supporting plate and the fixing piece, and the position of the elastic buffer piece relative to the supporting plate and the fixing piece is fixed.

Drawings

The invention may be better understood by describing embodiments of the invention in conjunction with the following drawings, in which:

FIG. 1 is a schematic view of one embodiment of an X-ray diagnostic system including an X-ray detector of the present invention;

FIG. 2 is a schematic view of one embodiment of the X-ray detector of the present invention shown in FIG. 1;

FIG. 3 is a schematic view of the mounting of one embodiment of the elastomeric buffer of the X-ray detector of FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic perspective view of one embodiment of a buffer device of the X-ray detector of the present invention;

FIG. 5 is a schematic cross-sectional view of one embodiment of a buffer device of the X-ray detector of the present invention;

FIG. 6 is a schematic cross-sectional view of one embodiment of a base plate of a housing of an X-ray detector of the present invention; and

fig. 7 is a schematic distribution diagram of an embodiment of the elastic buffer relative to the supporting plate and the circuit board of the X-ray detector of the invention.

Detailed Description

While specific embodiments of the invention will be described below, it should be noted that in the course of the detailed description of these embodiments, in order to provide a concise and concise description, all features of an actual implementation may not be described in detail. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions are made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Unless otherwise defined, technical or scientific terms used in the claims and the specification should have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The terms "a" or "an," and the like, do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalent, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, nor are they restricted to direct or indirect connections.

Fig. 1 is a schematic diagram of an embodiment of an X-ray diagnostic system 100 provided with an X-ray detector 10 for diagnosis according to the present invention. In the present embodiment, the X-ray diagnostic system is only illustrative, and the X-ray detector 10 can be installed in any other suitable imaging diagnostic system according to actual needs.

As shown in fig. 1, the X-ray diagnostic system 100 is provided with an X-ray detector 10, an X-ray generation device 20, an image processing device 30, and a monitoring device 40. In a non-limiting example, the X-ray detector 10 is portable. The monitoring device 40 may include a display. The X-ray generation device 20 and the image processing device 30 can also be realized easily.

In the present embodiment, the X-ray generation device 20 may be disposed above the X-ray detector device 10. The X-ray generation apparatus 20 may emit X-rays toward a target object (e.g., an object under diagnosis). The X-ray detector 10 may receive X-rays that have passed through a target object and may generate corresponding image data based on the received X-rays. The X-ray detector 10 is operable to detect X-rays that have passed through the diagnostic object and to feed the sensed data to the image processing unit 30 for imaging processing. The monitoring device 40 may be used to display the formed image for viewing by the associated person. In this way, with the X-ray diagnostic apparatus 100, a region of interest of a diagnostic object can be imaged to facilitate diagnosis.

Fig. 2 is a schematic view of an embodiment of the inventive X-ray detector shown in fig. 1. As shown in fig. 2, the X-ray detector 10 includes a housing 11 and a sensing unit 12 disposed in the housing 11. The housing 11 has an upper wall 13, a bottom plate 14 opposite to the upper wall, and a side plate 15 disposed between and connecting the upper wall 13 and the bottom plate 14, which together form a receiving space 101 for receiving the sensing unit 12. Although the housing 11 may have a rectangular structure in the present embodiment, the housing 11 may have any other suitable shape, such as a circular shape, according to different needs. In one non-limiting example, the upper wall 13 may pass X-rays from the diagnostic object, which may therefore also be referred to as the plane of incidence of the X-rays.

The sensing unit 12 may be used to sense the X-rays from the upper wall 13 passing through the diagnostic object and may generate corresponding image data based on the sensed X-rays a for transmission to the image processing apparatus 30. In the embodiment shown in fig. 2, the sensing unit 12 includes a light sensing unit 16 (which may also be referred to as a light sensing plate), a data acquisition module 17, and a control circuit board 18. The embodiment shown in fig. 2 is merely illustrative. The light sensing unit 12 may also include various other components that cooperate with the light sensing unit 16, the data acquisition module 17, and the control circuit board 18 to sense and process X-rays that have passed through the diagnostic object for diagnostic imaging.

In certain examples, the light sensing unit 16 may be configured to sense X-rays from the incident surface 13 and generate an electrical signal accordingly. In the embodiment of the present invention, the light sensing unit 16 may include, but is not limited to, a semiconductor element for sensing X-rays to generate corresponding electrical signals. The data acquisition module 17 is connected to the light sensing unit 16 and the control circuit board 18, and can transmit the electrical signal data generated by the light sensing unit 16 to the control circuit board 18 for further processing, as indicated by arrow B. In one example, the data acquisition module 17 is connected to the light sensing unit 16 through a flexible circuit board. In a non-limiting example, the data acquisition module 17 may be used to convert the electrical signals generated by the photosites 16 into digital signals. The control circuit board 18 may include various control circuits that may be provided to control and process signals from the data acquisition module 17.

For better supporting the light sensing unit 16, as shown in fig. 2, the X-ray detector 10 is provided with a support plate 19 to support the light sensing unit 16. In a non-limiting example, the support plate 19 may be made of an aluminum material, which is located between the photosensitive unit 16 and the control circuit board 18, and below the photosensitive unit 16. In a non-limiting example, an X-ray blocking member (not shown) is provided between the support plate 19 and the light sensing unit 16 to block X-rays from passing through the blocking member.

In certain applications, as previously discussed, the radiation detector 10 may be improperly impacted by improper handling, such as dropping, to damage the photosensitive cells 16. To address this problem, in the embodiment shown in fig. 2, the X-ray detector 10 is further provided with an elastic buffer 20 to reduce or eliminate possible damage to the X-ray detector 10 due to mishandling.

As shown in fig. 2, an elastic buffer 20 is disposed between the supporting plate 19 and the bottom plate 14 for buffering the photosensitive unit. In the present embodiment, since the circuit board 18 is disposed below the supporting plate 19, the elastic buffer 20 may be further disposed between the circuit board 18 and the bottom plate 14. In this example, the elastomeric cushion 20 has an upper end 21 in contact with the circuit board 18 and a lower end 22 disposed on the base plate 14. In other examples, the upper end 21 of the elastomeric cushion 20 may also be in direct contact with the support plate 19.

In one non-limiting example, the elastomeric damper 20 is a rubber member and the rubber member is integrally molded. The positions between the various elements shown in the embodiment of FIG. 2 are merely illustrative and do not set any limit to the internal structure of a particular probe 10. Although the present embodiment illustrates only two elastomeric bumpers 20, the probe 10 may include one or more elastomeric bumpers 20, as desired. Although the bottom plate 14 is a lower wall disposed on the housing 11 opposite the upper wall 13 in this example, in other examples, the bottom plate 14 may not be disposed on the housing 11, and may be any element disposed below the probe 10 to engage the elastic buffer 20. In the present embodiment, the bottom plate 14 may also be referred to as a retainer for engaging and retaining the elastic buffer 20.

Fig. 3 is a schematic view of a buffering structure of an embodiment of the elastic buffer 20 of the X-ray detector in fig. 2. Fig. 3 illustrates the installation of one elastic buffer 20. As shown in fig. 3, in the buffering structure (not labeled), an elastic buffer 20 is located between the circuit board 18 and the bottom plate 14, and has an upper end 21 close to the supporting plate 19 and contacting with the bottom surface (not labeled) of the circuit board 18, and a lower end 22 close to the bottom plate 14 and contacting with the upper surface (not labeled) of the bottom plate 14. In this embodiment, the cushioning structure further includes a fixing member 23 provided on the support plate 19. In this embodiment, the upper end (not labeled) of the fixing member 23 is fixedly disposed on the supporting plate 19, and it passes through the corresponding hole 24 on the circuit board 18 below the supporting plate 19, thereby extending into the elastic buffer member 20. In one non-limiting example, the fixing member 23 is a nut, and its upper end is fitted into a threaded hole (not labeled) in the support plate 19 by screw-fitting. The fixing member 23 may be detachably or non-detachably provided on the supporting plate 19.

Fig. 4 to 5 show the structure of the elastic buffer 20. As shown in fig. 4 to 5, the elastic buffer 20 is an integrally formed structure, and the upper end 21 thereof is a circular structure. The lower end 22 extends downwardly from the upper end 21 in a cylindrical configuration. The diameter of the upper end 21 is larger than the diameter of the lower end 22. In other examples, the elastomeric damper 20 may have any other suitable shape. In this embodiment, the elastic buffer 20 extends downward from the substantially middle portion of the upper end 21 to form a receiving hole 25, so as to receive the lower end of the fixing element 23. Thus, since the upper end of the fixing member 23 is fixed to the supporting member 19 and the lower end thereof extends into the receiving hole 25 of the elastic buffer member 20, the elastic buffer member 20 is fixed to some extent.

Fig. 6 shows a schematic cross-sectional view of an embodiment of the base plate 14 of the housing of the X-ray detector 10 according to the invention. As shown in fig. 6, the bottom plate 14 defines receiving portions 26 for receiving the lower ends 22 of the respective elastic buffers 20. In the present embodiment, a projection 27 extends upward on the upper surface of the bottom plate 14 in a direction toward the support plate 19 or the elastic support member 20. In this example, the projections 27 are distributed in a circle on the base plate 14, defining a receptacle 26. Although in some examples, the boss 27 may be formed integrally with the base plate 14 on the base plate 14, it may be separately formed and then mounted on the base plate 14. The protrusion 27 may be a single element or may be composed of a plurality of elements to define the receiving portion 26, so as to receive the elastic buffer 20. In this way, the lower end of the elastic buffer 20 extends and is received in the receiving portion 26, so that the protrusion 27 can also play a certain role in fixing the elastic buffer 20. The position of the elastic buffer 20 relative to the support plate 19 and the retainer 14 is fixed, i.e. the upper end 21 and the lower end 22 of the elastic buffer 20 are fixed relative to the support plate 19 and the retainer 14 due to the restraining action of the fixing piece 23 and the receiving portion 26.

Fig. 7 shows a schematic view of the distribution of the elastomeric cushion 20 after assembly with the circuit board 18 and the support plate 19. In a different application, as shown in fig. 7, the elastomeric cushion 20 may be in direct contact with the circuit board 18 or the support plate 19, respectively. Furthermore, the distribution of the elastomeric bumpers 20 may also be varied according to different needs.

In the embodiment of the present invention, the elastic buffer member 20 has a simple structure, and is directly disposed between the bottom plate 14 and the supporting plate 19 to perform a buffering function, and the buffer member 20 can be made of rubber, so that the cost is low. In the embodiment of the present invention, even if the buffer member 20 is in contact with the circuit board 18, no additional fixing member, such as a nut, is required to fix the buffer member 20 on the circuit board 18, thereby preventing damage to the circuit board.

In the cushion structure, the nut 23 is provided, and the nut 23 is extended into the elastic cushion member 20 to fix the cushion member. Furthermore, the hollow nut and the use of the rubber buffer 20 also reduce the weight of the X-ray detector 10. Further, by defining the receiving portion 26 on the base plate 14, the elastic cushion 20 can be well fixed. The housing portion 26 itself is simple in structure. Compared with the traditional buffer structure, the buffer structure provided by the embodiment of the invention has the advantages of low cost, convenient structure, easiness in realization, space saving and convenience in installation.

While the invention has been described in conjunction with specific embodiments thereof, it will be understood by those skilled in the art that many modifications and variations may be made to the invention. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit and scope of the invention.

Claims

1. An X-ray diagnostic detector comprising:

a sensing unit which can sense X-rays to facilitate diagnostic imaging;

a support plate disposed below the sensing unit to support the sensing unit;

the fixing piece is arranged below the supporting plate; and

an elastic buffer member which comprises a rubber material, is integrally formed, is arranged between the supporting plate and the fixing member, and is fixed relative to the supporting plate and the fixing member;

wherein, the elastic buffer part comprises an upper end close to the supporting plate and a lower end close to the fixing part, and the size of the upper end is larger than that of the lower end.

2. A diagnostic X-ray detector as claimed in claim 1, wherein said X-ray detector comprises a housing, said sensing unit being housed in said housing, said holder being a bottom plate of said housing.

3. An X-ray diagnostic apparatus according to claim 1, wherein said holder is provided with a housing portion in which a lower end of said elastic buffer member is housed.

4. An X-ray diagnostic apparatus according to claim 3, wherein the holder is provided with projections extending from the holder in a direction toward the support plate, and a pair of adjacent projections define the receiving portions.

5. A diagnostic X-ray detector as claimed in claim 1, wherein said detector is provided with a fixing member having one end fixedly disposed on said support plate and the other end contacting said elastic buffer member to fix the elastic buffer member.

6. A diagnostic X-ray detector according to claim 5 wherein said elastomeric buffer is provided with a receiving hole and said securing member extends into said receiving hole in said elastomeric buffer to secure said elastomeric buffer.

7. A diagnostic X-ray detector as claimed in claim 5, wherein said sensing element comprises a circuit board disposed below said support plate and between said support plate and said elastomeric cushion, said mounting element passing through said circuit board and contacting said elastomeric cushion.