JP2012048129A - Cassette storage bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cassette storage bag, even if being dropped by accident when carrying a cassette with it stored therein, capable of protecting the cassette.SOLUTION: A cassette storage bag 80 whose one side is opened has a rectangular shape and an electronic cassette 12 can be stored therein from an opening 80A. The cassette storage bag 80 includes a leaf spring 90 that clamps the end of the electronic cassette 12 for preventing it from reaching the end of the cassette storage bag 80, at an opposite end of the opening 80A inside the cassette storage bag 80.

Description

  The present invention relates to a cassette housing bag, and more particularly, to a cassette housing bag for housing a cassette that captures a radiographic image.

  In recent years, radiation detectors such as FPD (Flat Panel Detector) that can arrange radiation sensitive layers on TFT (Thin Film Transistor) active matrix substrates and convert radiation such as X-rays directly into digital data have been put into practical use. An electronic cassette that generates image data indicating a radiation image represented by irradiated radiation using this radiation detector and stores the generated image data has been put into practical use.

  Because this electronic cassette has portability, it is possible to take a picture of a patient while it is placed on a stretcher or bed, and the position of the electronic cassette can be changed to adjust the shooting location. It is possible to deal with it flexibly.

  By the way, in order to prevent contamination when capturing a radiographic image, the cassette may be housed in a cassette storage bag and photographed.

  For example, Patent Document 1 describes a cassette storage bag in which a bag body is formed of a material that blocks external light and transmits radiation.

  Patent Document 2 describes a cassette storage bag in which an antenna for wireless communication is formed on a bag body.

JP 2010-71726 A JP 2009-48171 A

  By the way, when the cassette is accommodated in the cassette storage bag and transported in this manner, the cassette is generally transported with the opening side up so that the cassette does not come out of the bag body. If it is dropped, an impact may be applied to the cassette from the tip side opposite to the opening of the bag body, and the cassette may be damaged. In particular, a radiation detector built in an electronic cassette has a circuit formed on a glass substrate, and the glass substrate may break due to an impact.

  The present invention has been made in view of the above-described facts, and an object of the present invention is to provide a cassette storage bag that can protect a cassette even when it is dropped by mistake when the cassette is stored and transported.

  In order to achieve the above-mentioned object, the cassette storage bag according to claim 1 is formed into a rectangular shape with one side opened by a material that transmits radiation, and the bag body that can accommodate the cassette from the opening inside, A buffer member that is provided at least at an end opposite to the opening in the bag body and absorbs an impact.

  According to the present invention, the bag body is formed in a quadrangular shape with one side opened by a material that transmits radiation, and the cassette can be accommodated in the inside from the opening. And the shock absorbing member which absorbs an impact is provided in the edge part opposite to the opening in a bag body at least.

  Thus, according to the first aspect of the present invention, the shock absorbing member that is formed into a quadrangular shape with one side opened and that absorbs shock at the end opposite to the opening in the bag body that can accommodate the cassette from the opening is provided. Since it is provided, the cassette can be protected even if it is accidentally dropped when the cassette is accommodated and transported.

  In the present invention, as in the invention described in claim 2, the buffer member is a plate spring that prevents the end portion of the cassette from reaching the end portion of the bag body with the end portion of the cassette interposed therebetween. Also good.

  According to a second aspect of the present invention, as in the third aspect of the present invention, the leaf spring is curved in a spherical shape at the center, and the curved portion curved in the spherical shape and both end portions sandwiching the end portion of the cassette. The boundary portion may be formed such that the width of the boundary portion is smaller than the width of the cassette, and the curved portion may be disposed on the end portion side of the bag body.

  In the present invention, as in the invention described in claim 4, it is preferable that the end portion region opposite to the opening of the bag body is formed of at least a conductive member.

  Further, according to the present invention, as in the invention according to claim 5, the cassette has a conductive region formed in a part of the casing, and the bag body is electrically conductive when the cassette is accommodated. A portion corresponding to the region may be formed of a conductive member.

In the invention according to claim 4 or claim 5, as in the invention according to claim 6, the bag body has a volume specific resistance value of 10 ¹² Ω · cm in a conductive region formed of a conductive member. The following is preferable.

  According to the present invention, it is possible to protect the cassette even when it is accidentally dropped when the cassette is accommodated and transported.

It is a perspective view which shows the structure of the radiography system which concerns on embodiment. It is a permeation | transmission perspective view which shows the structure of the electronic cassette concerning embodiment. It is a perspective view which shows the cassette storage bag which concerns on embodiment. It is a permeation | transmission perspective view which shows the arrangement configuration of the leaf | plate spring which concerns on embodiment. It is sectional drawing which shows the structure of the leaf | plate spring which concerns on embodiment. It is a figure which shows the structure of the leaf | plate spring which concerns on another form. It is a figure which shows the edge part area | region formed with the electroconductive member of the cassette storage bag which concerns on another form.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. Here, a description will be given of an example in which the present invention is applied to a radiation imaging system that captures a radiation image using an electronic cassette.

  FIG. 1 is a perspective view showing a radiation imaging system 10 according to the present exemplary embodiment.

  The radiation imaging system 10 is portable and includes an electronic cassette 12 that generates image information indicating a radiation image represented by irradiated radiation, and a storage unit 14 that stores the electronic cassette 12. And a prone position table 16 for a patient to lie down when performing radiography.

  The electronic cassette 12 is accommodated in the accommodating portion 14 of the supine position imaging stand 16 so as to be spaced apart from the radiation generator 34 that generates radiation. The space between the radiation generator 34 and the electronic cassette 12 at this time is an imaging position for the patient to be positioned. The radiation generator 34 irradiates a radiation X having a radiation dose according to a predetermined imaging condition or the like when an instruction to capture a radiation image is given. The radiation X emitted from the radiation generator 34 is irradiated to the electronic cassette 12 after carrying the image information by passing through the patient located at the imaging position.

  Note that the electronic cassette 12 is not used only in a state of being held in the storage unit 14 of the supine photographing stand 16, and because of its portability, it is not accommodated in the housing unit 14 and is not placed on the supine photographing stand 16. It can also be used in the arranged state.

  FIG. 2 is a transparent perspective view showing the internal configuration of the electronic cassette 12 according to the present exemplary embodiment.

  The electronic cassette 12 is covered with a flat casing 20 made of a material that transmits the radiation X and having a thickness.

  In the housing 20, a grid 24 that removes scattered radiation of the radiation X that is generated by passing through the patient and the radiation X are detected in order from the irradiation surface 22 side where the radiation X is irradiated in the housing 20. And a lead plate 28 that absorbs backscattered radiation X. Note that the irradiation surface 22 of the housing 20 may be configured by a grid 24. In addition, the radiation detector 26 converts the radiation X directly into electric charges in a semiconductor layer made of amorphous amorphous selenium (a-Se) containing selenium as a main component (for example, content of 50% or more), for example. It may be of the direct conversion type that accumulates, and once the radiation X is converted to light with a scintillator such as gadolinium sulfate (GOS) or cesium iodide (CsI), the converted light is converted into electric charge with an electric conversion element (photodiode) An indirect conversion method of converting and accumulating may be used.

  In addition, a case 30 that houses an electronic circuit including a microcomputer and a rechargeable secondary battery is disposed on one end side inside the housing 20. The radiation detector 26 and the electronic circuit are operated by electric power supplied from the secondary battery disposed in the case 30. In order to avoid various circuits housed in the case 30 from being damaged by the irradiation of the radiation X, it is desirable to arrange a lead plate or the like on the irradiation surface 22 side of the case 30.

  By the way, the electronic cassette 12 may be housed in a cassette storage bag for preventing contamination in order to prevent contamination when taking a radiographic image.

  FIG. 3 is a perspective view showing the cassette storage bag 80 according to the present embodiment.

In the cassette storage bag 80, the bag body 82 is formed in a quadrangular shape with one side opened, and the electronic cassette 12 can be accommodated inside the opening 80A. The bag body 82 is formed of a conductive member that transmits radiation. Examples of the material of the bag body 82 include, but are not limited to, resin materials such as polyethylene using additives such as surfactants, polyethylene kneaded with conductive carbon, and films laminated with aluminum. is not. The bag body 82 may have a volume resistivity of 10 ¹² Ω · cm or less, and includes a conductor (volume resistivity of 0 Ω · cm). Preferably, it is made of a material having a resistance of 10 ¹¹ Ω · cm or less, more preferably 10 ¹⁰ Ω · cm or less.

  As shown in FIG. 4, leaf springs 90 are arranged side by side along the side opposite to the opening 80 </ b> A in the cassette storage bag 80 according to the present embodiment.

  The leaf spring 90 is made of a conductive metal and is curved at the center. The leaf spring 90 prevents the end of the electronic cassette 12 from reaching the end of the cassette storage bag 80 by sandwiching the end of the electronic cassette 12 between the end portions 92A and 92B.

  In the leaf spring 90 according to the present embodiment, as shown in FIG. 5, the curved portion 94 is curved in a spherical shape, and the width T1 of the boundary portion between the end portions 92A and 92B and the curved portion 94 is the width of the electronic cassette 12. It is formed narrower than T2. Further, the leaf spring 90 is provided with convex portions 96A and 96B that protrude inwardly at positions where the end portions 92A and 92B are opposed to each other, and the convex portions 96A and 96B are also formed so as to sandwich the electronic cassette 12 therebetween. Yes.

  Next, the operation of the radiation imaging system 10 according to the present embodiment will be described.

  When the radiographer captures a radiographic image while preventing the electronic cassette 12 from being contaminated, the photographer accommodates the electronic cassette 12 in the cassette storage bag 80 from the opening 80A.

  When the photographer transports the electronic cassette 12 accommodated in the cassette storage bag 80 as described above, generally, the photographer transports the electronic cassette 12 with the opening 80 </ b> A side up so that the electronic cassette 12 does not come out of the cassette storage bag 80. To do.

  When the opening 80A side is turned up, the electronic cassette 12 accommodated in the cassette storage bag 80 moves to the end opposite to the opening 80A in the cassette storage bag 80, and the end of the electronic cassette 12 is moved to the leaf spring 90. Between the end portions 92A and 92B. In particular, in the present embodiment, as shown in FIG. 5, the width T1 of the boundary portion between the end portions 92A and 92B of the leaf spring 90 and the curved portion 94 is formed to be narrower than the width T2 of the electronic cassette 12. As a result, as the electronic cassette 12 is inserted toward the curved portion 94 side of the leaf spring 90, the end portions 92A and 92B are more strongly sandwiched, so that the end of the electronic cassette 12 can reach the end of the cassette storage bag 80. Be blocked.

  Thus, when the electronic cassette 12 is prevented from reaching the end of the cassette storage bag 80, the cassette storage bag 80 is accidentally dropped when the electronic cassette 12 is accommodated and transported in the cassette storage bag 80. Even if it is made to fall, since the impact of a drop is not directly applied to the edge part of the electronic cassette 12, the electronic cassette 12 can be protected.

  In the present embodiment, the leaf spring 90 is bent in a spherical shape at the bending portion 94. Thereby, the impact applied to the electronic cassette 12 by the impact of the fall being absorbed by the curved portion 94 is alleviated.

  In addition, the electronic cassette 12 may be charged by being rubbed on a photographer's clothes, a patient's clothes, or a bed with a sheet or a blanket.

  Thus, even when the electronic cassette 12 is charged, the bag body 82 of the cassette storage bag 80 is formed of a conductive member, and the leaf spring 90 is also formed of a conductive metal. The electric charge can be discharged via

As described above, according to the present embodiment, the electronic cassette 12 has a rectangular shape with one side open, and the electronic cassette 12 is provided at the end opposite to the opening 80A in the cassette storage bag 80 capable of accommodating the electronic cassette 12 from the opening 80A. Since a leaf spring 90 is provided to prevent the end of the cassette storage bag 80 from reaching the end of the cassette storage bag 80, the electronic cassette 12 is accidentally dropped when it is transported in the cassette storage bag 80. The electronic cassette 12 can be protected even if the

  Further, according to the present embodiment, since the bag body 82 of the cassette storage bag 80 is formed of the conductive member, the electric charge can be discharged through the cassette storage bag 80 even when the electronic cassette 12 is charged.

  As mentioned above, although this invention was demonstrated using the said embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. Various modifications or improvements can be added to the above-described embodiment without departing from the gist of the invention, and embodiments to which such modifications or improvements are added are also included in the technical scope of the present invention.

For example, in the above embodiment, the case where the curved portion 94 of the leaf spring 90 is curved in a spherical shape and the convex portions 96A and 96B are provided on the end portions 92A and 92B has been described, but the present invention is limited to this. is not. For example, the leaf spring 90 may be a V-shaped member that is simply bent at the center as shown in FIG. 6. In the above embodiment, the leaf spring 90 is provided as a shock absorbing member that absorbs an impact. However, the present invention is not limited to this. For example, any material may be used as long as it can buffer the buffer, such as rubber, elastic resin material, and bubble buffer material. In addition, when preventing the surge by the charge of the electronic cassette 12, it is preferable that a buffer member has electroconductivity.

  Moreover, although the said embodiment demonstrated the case where the bag body main body 82 whole was formed with the electroconductive member, this invention is not limited to this. For example, as shown in FIG. 7, only the end region 88 opposite to the opening 80A of the bag body 82 may be formed of a conductive member. Thereby, even when the electronic cassette 12 is charged, the electric charge can be discharged through the end region 88 of the cassette storage bag 80.

  Further, when the electronic cassette 12 has a conductive region formed in a part of the housing 20, the cassette storage bag 80 corresponds to the conductive region of the housing 20 when the electronic cassette 12 is stored. It is good also as what forms the part to perform with an electroconductive member. Thereby, even when the electronic cassette 12 is charged, electric charges can be discharged through the conductive region of the cassette storage bag 80.

  Moreover, although the said embodiment demonstrated the case where the leaf | plate spring 90 was arrange | positioned as a buffer member along the edge on the opposite side to the opening 80A in the cassette storage bag 80, this invention is not limited to this. . For example, buffer members may be provided on the other two sides other than the opening 80A. Thereby, since an impact is not directly applied to the edge part of the electronic cassette 12 also about the other two sides, the electronic cassette 12 can be protected.

  Further, in the above-described embodiment, the case where the cassette storage bag 80 includes the radiation detector 26 and stores the electronic cassette 12 that generates image data indicating the radiation image represented by the irradiated radiation has been described. However, the present invention is not limited to this. For example, the cassette storage bag 80 may store a cassette containing an imaging plate or a radiation film.

  In the above embodiment, the electronic cassette 12 detects X-rays as radiation, but the present invention is not limited to this. For example, the radiation to be detected may be any of gamma rays, particle rays, etc. in addition to X-rays.

  In addition, the configuration described in the above embodiment is merely an example, and unnecessary portions are deleted, new portions are added, connection states, and the like are changed without departing from the gist of the present invention. It goes without saying that it can be done.

12 Electronic cassette (cassette)
80 cassette storage bag 80A opening 82 bag body 88 end region 90 leaf spring (buffer member)

Claims (6)

With a material that transmits radiation, a bag that is formed in a square shape with one side open, and can accommodate a cassette from the opening,
A shock-absorbing member that is provided at least at an end opposite to the opening in the bag body and absorbs an impact;
A cassette containing bag. The cassette housing bag according to claim 1, wherein the buffer member is a leaf spring that sandwiches an end portion of the cassette and prevents the end portion of the cassette from reaching the end portion of the bag body. The leaf spring is curved in a spherical shape at the center, and the width of the boundary portion between the curved portion curved in the spherical shape and both end portions sandwiching the end portion of the cassette is smaller than the width of the cassette. The cassette accommodation bag according to claim 2, which is arranged so as to be on an end side of the bag body. The cassette housing bag according to any one of claims 1 to 3, wherein an end region opposite to the opening of the bag body is formed of at least a conductive member. The cassette has a conductive region formed in a part of the housing,
The cassette housing bag according to any one of claims 1 to 4, wherein the bag body is formed by a conductive member at a portion corresponding to a conductive region of the housing when the cassette is housed. The bag is claim 4 or claim 5 cassette accommodating bag according volume resistivity of the formed conductive region by a conductive member is not more than 10 ¹² Ω · cm.

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