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WO2007129932A1 - Dispositif diagnostique de balayage numérique radiographique - Google Patents

Dispositif diagnostique de balayage numérique radiographique Download PDF

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Publication number
WO2007129932A1
WO2007129932A1 PCT/RU2007/000184 RU2007000184W WO2007129932A1 WO 2007129932 A1 WO2007129932 A1 WO 2007129932A1 RU 2007000184 W RU2007000184 W RU 2007000184W WO 2007129932 A1 WO2007129932 A1 WO 2007129932A1
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WO
WIPO (PCT)
Prior art keywords
axis
ray
horseshoe
diagnostic
vertical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/RU2007/000184
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English (en)
Russian (ru)
Inventor
Vladimir Ivanovich Popov
Aleksei Vladimirovich Behterev
Andrei Egorovich Kurochenko
Anatolii Nikolaevich Put'makov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EA200802030A priority Critical patent/EA011791B1/ru
Publication of WO2007129932A1 publication Critical patent/WO2007129932A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
    • A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm

Definitions

  • the invention relates to x-ray technology, namely to x-ray scanning digital devices, and can be used in medical x-ray devices used in diagnostics as a universal multifunctional device.
  • multifunctional X-ray diagnostic complexes of the type PUM-20, TUP-800, EDP-750 are widely used, which contain three workstations: a turntable with a X-ray image intensifier; table of images with a tomographic prefix; a rack of pictures.
  • RDK provide almost all types of X-ray diagnostic studies. Layer-by-layer tomography and special fluoroscopic examinations occupy no more than 10% of the total research volume and are prescribed in the main treatment process. The indicated RDKs are quite expensive and difficult to maintain, and also occupy large areas and are installed in specialized X-ray rooms located at a certain distance from the receiving departments.
  • the apparatus should provide sufficient information content of the images, allowing to detect not only traumatic lesions of the body, head and limbs, cracks in the bone tissue, but also the internal structure of tissues, including foci of inflammation, tumors and other pathologies.
  • the images obtained by the nature of the representation of organs should be as close as possible to conventional x-ray images, which makes their reading accessible to most radiologists.
  • the apparatus should be small enough to be located in the limited areas of reception departments of hospitals or emergency rooms.
  • a scanning X-ray device is known (a brochure of the INP SB RAS, Novosibirsk at the Siberian Regional Center for Reconstruction and Analysis - Appendix 1), containing a source of X-ray radiation (XR) sequentially located on the same optical axis, a slit collimator, and a X-ray linear receiver, the source being the collimator and the receiver are rigidly connected to each other by a common bracket and move in a vertical plane relative to the object located between the slotted collimator and the linear RI receiver.
  • XR X-ray radiation
  • the main disadvantage of this device is that the device is intended primarily for diagnosing a patient in an upright position, in particular for fluorography, and, from the point of view of informational content, is not suitable for other types of patient surveys, since for some cases, the most informative picture will be a horizontal or inclined projection, which are described in the standard styling system (see “X-ray styling atlas”, AH Kishkovsky, L. A. Tyutin, G. H. Esinovskaya, L. Medicine Le - Ning. branch of 1987).
  • the size of the object under study is increased in the horizontal plane due to the fan divergence of X-rays, and the vertical plane of magnification does not occur due to the parallel movement of the slotted fan X-ray beam along the object under study.
  • the proportions of the resulting images are significantly distorted compared to those obtained on film, which leads to difficulties in reading pictures by doctors.
  • Known X-ray table tripod rotary for a digital radiographic apparatus (see patent RU 2202953, class A61B 6/04, 2003), containing a base connected to a supporting frame and its rotation mechanism, a support wall connected to the supporting frame, a longitudinal carriage stroke with its linear movement mechanism, a console rigidly fixed to the longitudinal stroke carriage, on which a pendulum U-shaped lever with a mechanism for its angular movement is mounted, while x-ray radiation is fixed on opposite shoulders of the U-shaped lever aji and X-ray device.
  • the inventive device allows you to conduct almost a full range of diagnostic radiographic examinations.
  • the main disadvantage of the known device is its significant overall dimensions, which significantly limits its functionality, in particular, impedes its use as a universal diagnostic apparatus suitable for ward examinations or operative imaging during a surgical operation.
  • the claimed device is an X-ray scanning device containing a source of radiation sources, a slot collimator and a linear multi-element radiation detector, which are mounted on a single bracket mounted to rotate around a scanning axis located in a plane the slit of the collimator and the longitudinal axis of the linear multi-element detector (see PCT application WO 02/17790, class A61B 6/03, 2002).
  • the device allows, basically, to obtain digital images with a vertically oriented body of the patient.
  • the main disadvantage of the known device is the impossibility of its use as a multifunctional diagnostic device, including obtaining complex projections of organs or limbs.
  • the technical problem solved by this invention is to remedy these disadvantages, namely, expanding the functionality of the device.
  • the specified embodiment of the device allows, by providing several degrees of freedom for the truss with a bracket, to take pictures from various angles with arbitrary angles of inclination with respect to the patient's body, which contributes to the maximum information content of the pictures.
  • the platform is mounted movably on a vertical rack and equipped with a mechanism for reciprocating movement along its longitudinal axis, and for convenient location relative to the patient’s body, the platform is equipped rotational movement mechanism around the longitudinal axis of the rack.
  • the swivel mechanism of the horseshoe-shaped truss is rotatable around an axis parallel to the scan axis, which makes it possible to take pictures with inclined angles relative to the vertical axis of the rack.
  • the rotation of the truss helps to introduce its part, in which There is a receiver under the body of the patient lying on the couch, which is especially important when conducting ward diagnostics of seriously ill patients.
  • the horseshoe-shaped swivel truss mechanism is rotatable around an axis parallel to the axis of the vertical axis of the racks, which makes it possible to take pictures inaccessible to x-ray machines equipped with horizontal tripod tables.
  • the swivel mechanism of the horseshoe-shaped truss is based on a biaxial gimbal assembly.
  • the swivel mechanism of the horseshoe-shaped truss is equipped with reversible gear motors along the rotation axes.
  • the rotation mechanism is based on a U-shaped fork fixed movably around an axis perpendicular to the axis of the vertical strut and equipped with a reversible gear motor.
  • the device can be 20 equipped with a vertical rack with a node of floor, ceiling or wall mounts.
  • the vertical rack of the device can be installed on a movable base.
  • FIG. 1 shows the inventive device in the embodiment of wall mounting of a vertical rack of the apparatus.
  • Figure 2 presents the main details of the swivel mechanism of the horseshoe-shaped truss, on which a movable bracket with an x-ray emitter, a slotted collimator and a linear radiation detector is fixed.
  • Figs. 3 and 4 show variants of floor and ceiling fastening of the apparatus vertical strut.
  • the inventive device comprises: an x-ray emitter 1 with a slit collimator 2, forming a fan beam RI 3; object of examination 4; a linear receiver RI 5 mounted on the opposite end of the bracket 6 from the x-ray emitter, which is mounted to rotate around the scanning axis 7; horseshoe-shaped truss 8, in the lower part of which there are guides for moving the linear RI receiver; rotary mechanism 9 with the axis of rotation 10 and 11; U-shaped fork 12, mounted on a rotating support 13, which is mounted on a movable platform 14 with an axis of rotation 15; vertical rack 16 with a longitudinal axis 17; X-ray examination table 18.
  • the device operates as follows.
  • the examined patient 4 is placed on the diagnostic table 18 and the lower base of the farm 8 with the receiver 5 is brought under the body of the patient lying on the table under or above the table deck 18 and the shooting angle is selected according to known styling.
  • the x-ray emitter 1 and, due to the rotation of the bracket 6 around the axis of scanning 7, carry out the shooting of the image frame.
  • the scanning fan beam 3 moves along the examined area of the patient’s body in synchronism with the receiver 5, which converts the radiation transmitted through the subject into digital signals transmitted to a computer (not shown) to restore the image.
  • the shooting angle can be quickly changed, for example, by tilting the truss 8 around axis 10 or by turning the truss 8 around axis 11 or by turning farm company 8 around axis 14, etc.
  • Example. A prototype of the inventive device was manufactured.
  • the device is a monoblock with a survey area of 520 mm at a focal length of 1100 mm and allows you to scan an object at a speed of up to 2 seconds per frame with dimensions up to 410x410 mm.
  • the patient’s radiation dose during the examination of the chest organs is about 10 ⁇ Sv.
  • the weight of the prototype of the device in the ward version does not exceed 120 kg, which allows it to be transported to one laboratory assistant, including using elevator cabins.
  • the prototype is made with the following technical characteristics of the main nodes.
  • the X-ray radiator is made on the basis of a serial tube 2.5-50BD21-150 manufactured in Russia and provides the generation of X-ray radiation with an energy in the range of 30 - 150 KeV at an anode current of up to 100 mA.
  • the emitter is powered from a single-phase 220V network.
  • the collimator is made of two slit, with parallel slots arranged in series, providing a beam width of about 1 mm in the plane of the RI receiver.
  • the receiver is made on the basis of an eight-line array with a length of 410 mm and a width of 0.8 mm, each row of which contains 4096 elements sensitive to x-ray photons with an energy of 10 - 300 Kev.
  • the distance between the centers of the elements is 100 microns.
  • the contrast sensitivity of the receiver is not worse than 1.5% with a dynamic range of 1: 400 and spatial resolution not worse than 5 pairs of lines / mm.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

L'invention appartient au domaine de la radiographie et plus particulièrement des dispositifs de balayage numériques radiographiques et peut s'utiliser dans des établissements médicaux pour le diagnostic à rayons X en tant qu'appareil universel à fonctions multiples. Le dispositif de balayage numérique radiographique comprend, disposés en séquence sur un seul axe optique, une source de rayons X, un collimateur à fente et un détecteur linéaire à éléments multiples à rayons X, qui sont montés sur un support unique disposé de manière à pouvoir tourner autour d'un axe de balayage, situé dans le plan de la fente du collimateur et de l'axe longitudinal du détecteur linéaire à éléments multiples. La nouveauté consiste en ce que le support est monté mobile sur à l'une des extrémités d'un socle en 'U', qui est monté au moyen d'un mécanisme de direction et d'un mécanisme de rotation sur la plate-forme installée dans un montant vertical.
PCT/RU2007/000184 2006-05-10 2007-04-13 Dispositif diagnostique de balayage numérique radiographique Ceased WO2007129932A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EA200802030A EA011791B1 (ru) 2006-05-10 2007-04-13 Диагностический рентгенографический сканирующий цифровой аппарат

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2006116126 2006-05-10
RU2006116126/14A RU2328217C2 (ru) 2006-05-10 2006-05-10 Диагностический рентгенографический сканирующий цифровой аппарат

Publications (1)

Publication Number Publication Date
WO2007129932A1 true WO2007129932A1 (fr) 2007-11-15

Family

ID=38667970

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2007/000184 Ceased WO2007129932A1 (fr) 2006-05-10 2007-04-13 Dispositif diagnostique de balayage numérique radiographique

Country Status (5)

Country Link
CN (1) CN201271257Y (fr)
EA (1) EA011791B1 (fr)
RU (1) RU2328217C2 (fr)
UA (1) UA42413U (fr)
WO (1) WO2007129932A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010085179A1 (fr) * 2009-01-22 2010-07-29 Федеральное Государственное Унитарное Предприятие "Гocудapctbehhый Научный Цehтp Российской Федерации - Институт Физики Высоких Энергий" (Гнц Ифвэ) Dispositif à rayons x mobile, numérique, délivrant de faibles doses d'irradiation
WO2011036613A1 (fr) * 2009-09-22 2011-03-31 Koninklijke Philips Electronics N.V. Appareil et procédé pour l'acquisition d'informations de diagnostic
RU2452141C2 (ru) * 2010-05-19 2012-05-27 Закрытое Акционерное Общество "Рентгенпром" (Зао "Рентгенпром") Однопроекционный сканирующий рентгеновский аппарат с осциллирующим по энергии пучком пирамидальной формы (варианты)
CN102331796B (zh) * 2011-10-12 2013-07-10 南通医疗器械有限公司 U型臂电气控制系统
DE102012201527B4 (de) * 2011-10-28 2015-10-01 Siemens Aktiengesellschaft Vorrichtung zum linearen Verstellen einer Gantry eines Computertomographiegerätes und Computertomographieeinrichtung
RU2504333C1 (ru) * 2012-12-17 2014-01-20 Государственное бюджетное учреждение здравоохранения города Москвы "Научно-исследовательский институт неотложной детской хирургии и травматологии" Департамента здравоохранения города Москвы Способ визуализации внутренних органов при тяжелой травме у детей
CN108742666B (zh) * 2018-04-16 2022-04-15 张兆斌 一种骨科放射放大率的测定装置
RU186354U1 (ru) * 2018-06-07 2019-01-16 федеральное государственное бюджетное образовательное учреждение высшего образования "Нижегородский государственный технический университет им. Р.Е. Алексеева" (НГТУ) Рентгеноскопическая установка
RU2716459C1 (ru) * 2019-06-27 2020-03-11 Акционерное общество "Конструкторское бюро химавтоматики" (АО КБХА) Потолочное устройство для рентгеновского контроля деталей

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5511106A (en) * 1993-07-06 1996-04-23 Siemens Aktiengesellschaft X-ray diagnostics installation for producing x-ray exposures of body parts of a patient
RU31946U1 (ru) * 2000-08-29 2003-09-10 Бехтерев Алексей Владимирович Радиографическое сканирующее устройство
RU2217055C1 (ru) * 2002-05-07 2003-11-27 Щетинин Виктор Васильевич Цифровой сканирующий рентгенодиагностический аппарат

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1391623A1 (ru) * 1985-12-26 1988-04-30 Научно-производственное объединение "Медоборудование" Панорамный томограф
RU2130623C1 (ru) * 1997-02-21 1999-05-20 Товарищество с ограниченной ответственностью "Медтех" Устройство для регистрации и формирования рентгеновского изображения
EP1062913A1 (fr) * 1999-06-25 2000-12-27 DDI Direct Digital Imaging GmbH Système d'imagerie par radiographie et par balayage digital

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5511106A (en) * 1993-07-06 1996-04-23 Siemens Aktiengesellschaft X-ray diagnostics installation for producing x-ray exposures of body parts of a patient
RU31946U1 (ru) * 2000-08-29 2003-09-10 Бехтерев Алексей Владимирович Радиографическое сканирующее устройство
RU2217055C1 (ru) * 2002-05-07 2003-11-27 Щетинин Виктор Васильевич Цифровой сканирующий рентгенодиагностический аппарат

Also Published As

Publication number Publication date
EA011791B1 (ru) 2009-06-30
RU2328217C2 (ru) 2008-07-10
CN201271257Y (zh) 2009-07-15
EA200802030A1 (ru) 2009-02-27
UA42413U (ru) 2009-07-10
RU2006116126A (ru) 2007-12-20

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