JP7507927B1 - Radiation protection cover - Google Patents
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- JP7507927B1 JP7507927B1 JP2023075354A JP2023075354A JP7507927B1 JP 7507927 B1 JP7507927 B1 JP 7507927B1 JP 2023075354 A JP2023075354 A JP 2023075354A JP 2023075354 A JP2023075354 A JP 2023075354A JP 7507927 B1 JP7507927 B1 JP 7507927B1
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- 230000005855 radiation Effects 0.000 title claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 68
- 238000000034 method Methods 0.000 abstract description 8
- 238000002594 fluoroscopy Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000002583 angiography Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
【課題】Ｘ線透視・撮影を用いた手技における放射線被ばくを防止するため、透視画像において明確に表示される目印を具える目印付放射線遮蔽シートを採用することにより、施行医をはじめとする作業者に対しＸ線照射状況を適切に伝達することが可能となる放射線防護用カバーを提供するものである。【解決手段】寝台上に載置される腕固定台に取付可能となる放射線防護用カバーにおいて、厚みが相違する面を有する目印付シート状遮蔽材がシート状表面部材に密封内蔵され、当該シート状表面部材を袋体とすることにより腕固定台に対して着脱自在に取付可能となることを特徴とする放射線防護用カバー。【選択図】 図１[Problem] To provide a radiation protection cover that can properly communicate the X-ray irradiation status to the performing physician and other workers by adopting a marked radiation shielding sheet with marks that are clearly displayed in fluoroscopic images to prevent radiation exposure during procedures using X-ray fluoroscopy and photography. [Solution] A radiation protection cover that can be attached to an arm support stand placed on a bed, characterized in that a marked sheet-like shielding material having surfaces of different thicknesses is sealed and built into a sheet-like surface member, and the sheet-like surface member is made into a bag body so that it can be detachably attached to the arm support stand. [Selected drawing] Figure 1
Description
本発明は、Ｘ線透視・撮影を用いた手技における放射線被ばくを防止するための放射線防護用カバーに関するものである。 The present invention relates to a radiation protection cover for preventing radiation exposure during procedures using X-ray fluoroscopy and photography.
従来、血管撮影や血管内治療におけるカテーテル使用の便宜等のため寝台に対して並行に回動する腕置台等が使用されているが、当該腕置台には放射線防護機能が備わっておらず、患者のみならず、寝台に接近して治療作業を行う施行医をはじめとする作業者に対する放射線防護効果はほとんど見られなかった。 Conventionally, arm rests that rotate parallel to the bed have been used for the convenience of using catheters in angiography and intravascular treatment, but these arm rests are not equipped with a radiation protection function and provide little radiation protection not only for the patient but also for workers, including the doctors performing the treatment who are close to the bed and perform the treatment.
一方、カテーテル検査においては、臓器を様々な方向から撮影することが必要となり、血管撮影装置に対向配置されるＸ線管とＸ線検出器が患者の身体近くを各方向にわたり稼働するため、放射線防護を考慮して、例えば仰臥位の患者身体の高さを越えて立設する腕固定台を配置した場合、かかる腕固定台がＸ線管とＸ線検出器間において干渉し、撮影の障害となるおそれが懸念された。 On the other hand, in catheter examinations, it is necessary to take images of organs from various directions, and the X-ray tube and X-ray detector, which are arranged opposite each other in the angiography device, move in various directions close to the patient's body. Therefore, if, for example, an arm support stand is placed above the height of the patient's body in a supine position in consideration of radiation protection, there is a concern that such an arm support stand may interfere with the X-ray tube and X-ray detector, hindering imaging.
また、血管撮影装置には、通常、患者のＸ線照射量を自動的に調整し、最適な画像を提供するための自動露出機構が搭載されており、これは受像機に入るＸ線量を一定に保つことで達成される。 In addition, angiography equipment is usually equipped with an automatic exposure mechanism that automatically adjusts the amount of X-ray exposure to the patient to provide optimal images, which is achieved by keeping the amount of X-rays entering the receiver constant.
したがって、Ｘ線照射域において、立設する腕固定台が干渉した場合、血管撮影装置の自動露出機構を通じてＸ線照射量は増加することになり、患者および作業者の被ばく増加や、装置の劣化を招来するおそれがあった。 Therefore, if the upright arm support table interferes with the X-ray exposure area, the amount of X-ray exposure will increase through the automatic exposure mechanism of the angiography device, which could lead to increased exposure of patients and workers and deterioration of the device.
さて、患者が横臥する寝台に載置されるＬ字形状アクリル板の立設板に鉛シートを内包するカバー部材を被覆させるＸ線防護具が開示されている。 Now, an X-ray protective device has been disclosed in which an L-shaped acrylic upright plate placed on the bed on which the patient lies is covered with a cover member containing a lead sheet.
しかしながら、全体が画一の面体を呈する一般の鉛シートからなる鉛遮蔽材を介しては、血管撮影などにおいて腕固定台にＸ線が照射された場合であっても、照射状況が透視画像に明確に映し出されることは困難であった。 However, when using lead shielding made of ordinary lead sheets that have a uniform overall surface, it is difficult to clearly show the irradiation conditions in a fluoroscopic image, even when X-rays are irradiated onto the arm support table during angiography, etc.
したがって、施行医をはじめとする作業者は、上記自動露出機構を通じて腕固定台に出力が増加したＸ線が照射されていることを適時に認識することができなかった。 As a result, the doctor performing the procedure and other workers were unable to timely recognize that the arm support platform was being irradiated with increased X-ray power through the automatic exposure mechanism.
本発明は、上記問題点に鑑みなされたものであって、透視画像において明確に表示される目印を具える目印付放射線遮蔽シートを採用することにより、施行医をはじめとする作業者に対しＸ線照射状況を適切に伝達することが可能となる放射線防護用カバーを提供するものである。 The present invention has been made in consideration of the above problems, and provides a radiation protection cover that employs a marked radiation shielding sheet with markings that are clearly displayed in fluoroscopic images, making it possible to properly communicate the X-ray irradiation status to workers, including the doctor performing the procedure.
本発明は、請求項１に記載のように、シート状遮蔽材の半面に透視画像表示用の目印となる切欠部が形成され、当該シート状遮蔽材を折り畳むことにより厚みが相違する面を有する目印付シート状遮蔽材を具えることを特徴とする放射線防護用カバーに係るものである。 The present invention relates to a radiation protection cover, as described in claim 1, characterized in that it comprises a marked sheet-like shielding material having a cutout portion formed on one side of the sheet-like shielding material as a mark for displaying a fluoroscopic image, and having a surface with a different thickness when the sheet-like shielding material is folded.
本発明は、請求項２に記載のように、寝台上に載置される腕固定台に取付可能となる放射線防護用カバーにおいて、シート状遮蔽材の半面に透視画像表示用の目印となる切欠部が形成され、当該シート状遮蔽材を折り畳むことにより厚みが相違する面を有する目印付シート状遮蔽材を具えることを特徴とする放射線防護用カバーに係るものである。 The present invention relates to a radiation protection cover that can be attached to an arm support table placed on a bed, as described in claim 2, characterized in that it comprises a marked sheet-like shielding material having a cutout portion formed on one side of the sheet-like shielding material as a mark for displaying fluoroscopic images, and the sheet-like shielding material is folded to have a surface with a different thickness.
本発明は、請求項３に記載のように、寝台上に載置される腕固定台に取付可能となる放射線防護用カバーにおいて、シート状遮蔽材の半面に透視画像表示用の格子状模様を呈する切欠部が形成され、当該切欠部が形成される半面に半身シート状遮蔽材を載置接着し、当該半身シート状遮蔽材が接着された当該シート状遮蔽材を折り畳むことにより厚みが相違する面を有する目印付シート状遮蔽材を具えることを特徴とする放射線防護用カバーに係るものである。 The present invention relates to a radiation protection cover that can be attached to an arm support table placed on a bed, as described in claim 3, characterized in that a cutout portion presenting a lattice pattern for displaying a fluoroscopic image is formed on one half of the sheet-like shielding material, a half-body sheet-like shielding material is placed and adhered to the half-body sheet-like shielding material on which the cutout portion is formed, and the sheet-like shielding material with the adhered half-body sheet-like shielding material is folded to form a radiation protection cover with a marked sheet-like shielding material having a surface with a different thickness.
本発明は、請求項４に記載のように、寝台上に載置される腕固定台に取付可能となる放射線防護用カバーにおいて、前記目印付シート状遮蔽材がシート状表面部材に密封内蔵され、当該シート状表面部材を袋体とすることにより腕固定台の平板部に対して着脱自在に取付可能となることを特徴とする請求項２又は請求項３の何れかに記載した放射線防護用カバーに係るものである。 The present invention relates to a radiation protection cover that can be attached to an arm support placed on a bed, as described in claim 4, characterized in that the marked sheet-like shielding material is sealed and embedded in a sheet-like surface member, and the sheet-like surface member is made into a bag body, so that the cover can be detachably attached to the flat plate portion of the arm support.
本発明は、請求項１乃至請求項４に記載のように、例えば、寝台に載置される腕固定台に取付可能となる放射線防護カバーのシート状遮蔽材として、厚みが相違する面を有する目印付シート状遮蔽材を採用することにより、当該厚みの変化に基づき、血管撮影装置の透視画像に明確に表示されうる目印として作用し、施行医をはじめとする作業者に対しＸ線照射状況を適切に伝達することが可能となる放射線防護用カバーを提供することが可能となるものである。 As described in claims 1 to 4, the present invention employs a marked sheet-like shielding material having surfaces of different thicknesses as a sheet-like shielding material for a radiation protection cover that can be attached to an arm support table placed on a bed, and based on the change in thickness, it acts as a mark that can be clearly displayed on the fluoroscopic image of the angiography device, making it possible to provide a radiation protection cover that can properly communicate the X-ray irradiation status to workers, including the doctor performing the procedure.
本発明に係る放射線防護用カバーに関して詳細に説明する。 The radiation protection cover of the present invention will be described in detail.
本発明に係る放射線防護用カバーＸの基本的構成は、全体形状が平面視において矩形状を呈するシート状の遮蔽材の半面に透視画像表示用の目印となる切欠部が形成される目印付シート状遮蔽材と、当該目印付シート状遮蔽材を密封内蔵するシート状表面部材とから構成されるものである。 The basic configuration of the radiation protection cover X according to the present invention is a marked sheet-like shielding material having a rectangular overall shape in a plan view, with a notch formed on one half of the surface of the sheet-like shielding material as a mark for displaying a fluoroscopic image, and a sheet-like surface member that contains the marked sheet-like shielding material sealed inside.
なお、本願における遮蔽材は、放射線防護機能を達成しうる遮蔽材を広く含み、例えば、無鉛素材や含鉛素材を適宜使用するものである。 The shielding material in this application broadly includes shielding materials that can achieve radiation protection functions, for example, lead-free materials and lead-containing materials are used as appropriate.
以下、本発明に係る放射線防護用カバーＸにおける一つの実施例に関する製造工程に即して各構成を説明する。 Below, each component will be described in accordance with the manufacturing process for one embodiment of the radiation protection cover X according to the present invention.
最初の工程として、矩形状を呈するシート状遮蔽材の半面に正方形状の切欠部Ｃを縦横に整列配置した格子状切欠部が形成される目印付シート状遮蔽材Ｓを製造する。 The first step is to manufacture a marked sheet-like shielding material S, which has a rectangular shape and has square cutouts C aligned vertically and horizontally on one half of the sheet-like shielding material to form a grid-like cutout.
例えば、図示した実施例における目印付シート状遮蔽材Ｓは、横幅４９０ｍｍ、縦長４７０ｍｍのシート状遮蔽材の半面に、一辺１５ｍｍの正方形状切欠部Ｃを横方向に１９個、縦方向に９個整列的に配し、各切欠部縦横間の間隔は１０ｍｍ、上辺との間隔は１０ｍｍ、側辺との間隔は１２ｍｍとしている。 For example, the marked sheet-like shielding material S in the illustrated embodiment has 19 square cutouts C with sides of 15 mm arranged horizontally and 9 vertically on half of the sheet-like shielding material that is 490 mm wide and 470 mm long, with the vertical and horizontal spacing of each cutout being 10 mm, the spacing from the top edge being 10 mm, and the spacing from the side edges being 12 mm.
第二の工程として、長方形状の半身シート状遮蔽材ＨＳを前記切欠部上面に載置し、目印付シート状遮蔽材Ｓに対し、接着剤などを介して接着する（図４参照）。 In the second step, a rectangular half-body sheet-like shielding material HS is placed on the top surface of the cutout and adhered to the marked sheet-like shielding material S using an adhesive or the like (see Figure 4).
例えば、図示した実施例における半身シート状遮蔽材ＨＳは、横幅４８０ｍｍ、縦長２３０ｍｍとし、切欠部全面を被覆することが可能となる。 For example, the half-body sheet shielding material HS in the illustrated embodiment has a width of 480 mm and a length of 230 mm, making it possible to cover the entire cutout portion.
第三の工程として、半身シート状遮蔽材ＨＳを接着した目印付シート状遮蔽材Ｓを、２枚の長方形状のシート状表面部材間Ｆに挟むように配置し、重ね合わされた２枚のシート状表面部材Ｆの四辺の周縁部をウェルダー加工等により溶着する。 In the third step, the marked sheet-like shielding material S with the half-body sheet-like shielding material HS attached is placed between two rectangular sheet-like surface members F, and the four peripheral edges of the two overlapping sheet-like surface members F are welded together by welding or other means.
例えば、図示した実施例におけるシート状表面部材Ｆは、横幅５２０ｍｍ、縦長４９０ｍｍとし、２枚のシート状表面部材間に目印付シート状遮蔽材を内包することが可能となる。 For example, the sheet-like surface member F in the illustrated embodiment has a width of 520 mm and a length of 490 mm, making it possible to enclose a sheet-like shielding material with markers between two sheet-like surface members.
第四の工程として、周縁部が溶着されたシート状表面部材Ｆをその中心線、すなわち、中央横幅辺を折り曲げ辺とし、内包される目印付シート状遮蔽材の一方半面に形成された切欠部が他方の半面に重なり合うように折り畳む（図５参照）。 In the fourth step, the sheet-like surface member F with its peripheral edges welded is folded along its center line, i.e., the central width edge, so that the cutout formed on one half of the enclosed marked sheet-like shielding material overlaps with the other half (see Figure 5).
第五の工程として、折り畳んだシート状表面部材Ｆの両側辺縁部をウェルダー加工等により溶着する。 In the fifth step, both side edges of the folded sheet-like surface member F are welded together using welding or other methods.
上記の製造工程を経ることにより、半身シート状遮蔽材ＨＳが接着された目印付シート状遮蔽材Ｓがシート状表面部材Ｆに密封内蔵されると共に、シート状表面部材Ｆは一方長辺部が開口部となり袋体を呈することになる。 Through the above manufacturing process, the marked sheet-like shielding material S with the half-body sheet-like shielding material HS adhered thereto is sealed and contained within the sheet-like surface member F, and one of the long sides of the sheet-like surface member F becomes an opening, forming a bag body.
袋体とすることにより、目印付シート状遮蔽材を内蔵するシート状表面部材が腕固定台の平板部上部に対し開口部から被覆可能となり、必要に応じて着脱自在に取付可能となる。 By forming it into a bag, the sheet-like surface member containing the marked sheet-like shielding material can cover the upper part of the flat plate part of the arm fixing stand from the opening, and can be attached and detached as needed.
例えば、本発明に使用するシート状遮蔽材及び半身シート状遮蔽材を含鉛遮蔽材とし、その鉛当量を、０．２５ｍｍＰｂと想定すると、上述した製造工程において示す実施例においては、半身シート状遮蔽材を切欠部に接着したシート状鉛遮蔽材を折り畳むことにより、目印付シート状遮蔽材としての鉛当量は，切欠部において０．５ｍｍＰｂ、切欠部以外において０．７５ｍｍＰｂとなる。 For example, assuming that the sheet-like shielding material and half-body sheet-like shielding material used in the present invention are lead-containing shielding materials with a lead equivalent of 0.25 mmPb, in the example shown in the manufacturing process described above, by folding the sheet-like lead shielding material with the half-body sheet-like shielding material adhered to the cutout portion, the lead equivalent of the marked sheet-like shielding material will be 0.5 mmPb at the cutout portion and 0.75 mmPb outside the cutout portion.
鉛遮蔽材として上記鉛当量にて充分の放射線防護効果を期待できるが、本発明に使用される目印付シート状遮蔽材の鉛当量は上記量に限定されるものではない。 The above lead equivalent amount is expected to provide sufficient radiation protection for the lead shielding material, but the lead equivalent amount of the marked sheet-like shielding material used in the present invention is not limited to the above amount.
なお、上述した製造過程及び切欠部の態様は、本発明に係る放射線防護用カバーの一つの実施例に関するものであり、放射線防護機能を維持し、目印としての機能を果たすための厚みの変化が形成される構成であれば製造方法は特定されるものではない。 Note that the manufacturing process and the configuration of the cutout portion described above relate to one embodiment of the radiation protection cover according to the present invention, and the manufacturing method is not specified as long as the configuration is such that a change in thickness is formed to maintain the radiation protection function and function as a marker.
上述のように、本発明に使用される目印付シート状遮蔽材は、切欠部を半面に形成したシート状遮蔽材を折り畳むことにより、切欠部が形成される一方の半面と、切欠部が形成されていない他方の半面とを重ね合わせ、シート状遮蔽材を同一の厚みからなる画一面ではなく、厚みが相違する目印付シート状遮蔽材とすることが特徴的構成となる。 As described above, the marked sheet-like shielding material used in the present invention is characterized in that by folding a sheet-like shielding material with a cutout formed on one side, one side with the cutout formed is overlapped with the other side without the cutout formed, making the sheet-like shielding material into marked sheet-like shielding material with different thicknesses rather than a uniform surface of the same thickness.
すなわち、遮蔽材の厚さに変化をつけることで、透視画像にはっきりと遮蔽材を写すことができ，医師は本発明に係る放射線防護用カバーが使用される腕固定台を移動させたり，放射線防護用カバーを取り外すことで過剰なＸ線照射を防止することが可能となる。 In other words, by varying the thickness of the shielding material, the shielding material can be clearly seen in the fluoroscopic image, and the doctor can prevent excessive X-ray exposure by moving the arm support table on which the radiation protection cover of the present invention is used or by removing the radiation protection cover.
本発明に係る放射線防護用カバーが使用される腕固定台Ｌは、例えば、矩形状基板部と当該基板部の一辺から立設される矩形状平板部からなる全体形状Ｌ字形を呈する構成が典型的であり、当該基板部を寝台上に敷設されたマットと寝台の間に挿入配置して使用される（図６参照）。 The arm support table L on which the radiation protection cover of the present invention is used is typically configured to have an overall L-shape consisting of a rectangular base plate portion and a rectangular flat plate portion erected from one side of the base plate portion, and the base plate portion is inserted between the bed and a mat laid on the bed (see Figure 6).
上記のように配置された腕固定台Ｌは、基板部の上面に仰臥位の患者の身体が載せられることにより安定的に設置され、立設される平板部が患者の腕の外側に配置されることになり、施行医をはじめとする作業者の放射線を防護すると共に、患者の寝台からの落下を防止することが可能となる。 The arm support table L arranged as described above is stably installed by placing the body of the patient in a supine position on the top surface of the base part, and the upright flat plate part is positioned on the outside of the patient's arm, which protects the doctor and other workers from radiation and prevents the patient from falling off the bed.
そして、本発明に係る放射線防護用カバーＸは、上記の腕固定台Ｌの平板部に取付けて使用されるものである（図７参照）。 The radiation protection cover X according to the present invention is attached to the flat plate portion of the arm support stand L (see FIG. 7).
取付の具体的態様は、例えば、袋体を呈する放射線防護用カバーが平板部全体を被覆する態様のほか、面ファスナーを介して貼り付ける態様や、ひっかける態様などが想定される。 Specific attachment methods include, for example, a bag-shaped radiation protection cover that covers the entire flat plate, a hook-and-loop fastener that attaches the cover, or a hook-and-loop fastener that hooks the cover on.
上述のとおり、本発明に係る放射線防護用カバーは腕固定台の平板部に対し着脱自在となるため、例えば、血管撮影において、放射線防護用カバーが被覆された平板部に増加したＸ線が照射されていることが透視画像によって認知された場合、放射線防護用カバーを取り外し、通常のＸ線照射量に補正することが可能となる。 As described above, the radiation protection cover of the present invention can be attached and detached freely to the flat plate of the arm support stand. For example, in angiography, if it is recognized from a fluoroscopic image that the flat plate covered by the radiation protection cover is being irradiated with increased X-rays, it is possible to remove the radiation protection cover and correct the X-ray exposure to the normal level.
シート状表面部材は、例えば、水洗いなどの洗浄に適する表面加工等を施した各種の熱可塑性樹脂など適宜選択するものであり、縁部は、ウェルダー加工のほか、各種の熱融着、縫着や接着剤などを適宜選択して目印付シート状遮蔽材部を密封加工するものとする。 The sheet-like surface member is made of a suitable material, such as a thermoplastic resin that has been treated with a surface treatment suitable for cleaning, such as washing with water, and the edges are sealed by welding, heat fusion, sewing, adhesives, or other suitable methods.
Ｘ 放射線防護用カバー
Ｓ 目印付シート状遮蔽材
ＨＳ 半身シート状遮蔽材
Ｆ シート状表面部材
Ｃ 切欠部
Ｌ 腕固定台
X Radiation protection cover S Marked sheet-like shielding material HS Half-body sheet-like shielding material F Sheet-like surface member C Cutout part L Arm fixing stand
Claims (4)
A radiation protection cover that can be attached to an arm support stand placed on a bed, characterized in that the marked sheet-like shielding material is sealed and incorporated into a sheet-like surface member, and the sheet-like surface member is made into a bag body so that the radiation protection cover can be freely attached and detached to the flat plate portion of the arm support stand.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023075354A JP7507927B1 (en) | 2023-04-30 | 2023-04-30 | Radiation protection cover |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2023075354A JP7507927B1 (en) | 2023-04-30 | 2023-04-30 | Radiation protection cover |
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|---|---|
| JP7507927B1 true JP7507927B1 (en) | 2024-06-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013121451A (en) | 2011-12-12 | 2013-06-20 | Suguru Yasumoto | Protection device for x-ray device |
| US20160220206A1 (en) | 2015-02-04 | 2016-08-04 | Oren E. Petel | Diagnostic for in situ Deformation and Strain Measurements Applicable to Traumatic Internal Injury Investigation and Prevention |
| US20180333220A1 (en) | 2017-05-17 | 2018-11-22 | Xraydepot Llc | Single X-Ray Marker |
| JP2019184443A (en) | 2018-04-11 | 2019-10-24 | 株式会社アールエフ | Lead ball sheet, lead ball sheet manufacturing method, lead ball sheet installation method |
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2023
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013121451A (en) | 2011-12-12 | 2013-06-20 | Suguru Yasumoto | Protection device for x-ray device |
| US20160220206A1 (en) | 2015-02-04 | 2016-08-04 | Oren E. Petel | Diagnostic for in situ Deformation and Strain Measurements Applicable to Traumatic Internal Injury Investigation and Prevention |
| US20180333220A1 (en) | 2017-05-17 | 2018-11-22 | Xraydepot Llc | Single X-Ray Marker |
| JP2019184443A (en) | 2018-04-11 | 2019-10-24 | 株式会社アールエフ | Lead ball sheet, lead ball sheet manufacturing method, lead ball sheet installation method |
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