Device for viewing images on light-transparent carriers

FIELD: medical engineering.

SUBSTANCE: device has casing manufactured from rigid light-impermeable material containing light-emitting member inside for illuminating viewer screen fixed in lateral casing window and provided with image locker units. The light unit has matrix-type modulator optically coupled with the viewer screen via objective and mirror. The modulator operation is controlled with digital processor unit connected to unit for controlling image position and image brightness distribution on the viewer screen mounted on the external casing side. The digital processor unit has desk for controlling operation modes.

EFFECT: enhanced effectiveness of X-ray diagnostics quality control.

5 cl, 2 dwg

 

The invention relates to the topic of medical equipment and is intended primarily for visual analysis of radiographs.

A device for viewing images on translucent media “Heliocentrists” Dutch company "Oldelft", made in the form of the projector [1, s]. It contains an illuminator comprising a light source with lens / mirror condensing system, light which is applied to the object table, which has a device for fastening a roll of film or a single LMS size 70×70 or 100×100 mm, the amount of light passed through the picture is projected through the lens and mirror on special matte screen, where a magnified x-ray image. The magnification of the image on the screen reaches 5-8x.

The known device [1] does not provide the possibility to view the full-scale x-ray images, for example, size 35×35 cm, which limits its use in medical radiology.

Known light box for viewing full-length radiographs containing the electroluminescent panel that is connected to a high-frequency electric source [2].

Known light box [2] has not received practical application because of the increased noise at his work (more than 40 dB).

Also known negatoscope, containing the second illuminator with a fluorescent lamp and the screen, made of transparent electret [3]. In the outer and inner sides of the screen on its diagonals are made grooves in which are laid insulated wire electrodes connected via a switch with the opposite poles of a high voltage source.

The main disadvantage of phagosome [3] is that its design does not allow multi-view x-ray, which is necessary, for example, when a retrospective radiographic analysis.

The closest in design to the declared object is a box, comprising a housing of rigid opaque material with side window, covered by a frosted glass, which is the viewing screen 4, s]. Inside the viewing box behind the screen is a luminaire with fluorescent lamps. For shielding impede the view open x-ray light field plots used svetoprozrachnye blinds, United with a manual mechanism to move them. On the outer side of the screen docked clamps for fixing the x-ray. The size of the screen allow you to view multiple radiographs.

The mechanical shutter is not in all cases provide protection for the eyes of the radiologist from direct light rays, for example, during visual analysis of the scales is screenshots/, that may affect the diagnostic accuracy.

The aim of the present invention is to improve the efficiency of x-ray by automatically setting the optimal operation mode of the viewing box for each particular image.

This objective is achieved in that the device for viewing images on translucent media, comprising a housing of rigid opaque material, which is located inside the illuminator projection screen mounted in the side window casing and provided with latches images, the illuminator contains the matrix modulator, optically coupled with viewing the screen through a lens and mirror, controlled by the digital processor connected to the control unit image location on the viewing screen and the brightness distribution of the image installed on the outside of the housing, and a digital processor has the remote control operation modes.

The invention is further illustrated by the drawings and description thereto. In Fig. 1 shows the design of the device (side view in section), and Fig. 2 - front view.

Device for viewing images on translucent media has a body 1 of a rigid and opaque material, for example plastic, is fixed on the base 2. Inside the housing 1 is the illuminator 3 Matri is essential modulator, containing the lens 4 with an infrared filter 5 that restricts the flow of heat rays. The illuminator 3 is connected to the power supply unit 6. The light output from the illuminator 3 through the lens 4 and the mirror 7 falls on the viewing screen 8, made of frosted glass and mounted in the side window of the housing 1. On a viewing screen 8 is fixed snapshot 9 made on translucent media, such as x-rays. Figure 9 is fixed on the screen 8 by means of clamps 10 spring type, for example made of plastic. The inclusion of the illuminator 3 is performed by the switch 11 located on the control panel mounted on the table 13 of the operator. The switch is connected by a wire 12 with the power supply unit 6. Control of an operation mode of the illuminator 3 is implemented with a digital processor 14 connected to an electric wire 15 with the control unit the position of the picture 9 on the viewing screen 8 and the brightness distribution of the image. This function performs a miniature digital video camera 16, mounted under the visor 17 of the device. Digital camera 16 has a wide angle lens, which allows it to control the entire surface of the screen 8. The control unit may have other constructive perform, for example in the form of a touch plate, combined with a viewing screen 8.

Device for viewing the image is raised on translucent media works as follows.

Switch 11 switch on the device, after which it enters standby mode. X-ray 9 subject to visual analysis, fixed on the viewing screen 8 by fixing its upper edge under the plate spring 10 (Fig. 1, 2). The light output from the illuminator 3, after passing through the lens 4 and reflected from the mirror 7, gets on the viewing screen 8, illuminating the x-ray 9. The light rays that have passed through the snapshot 9, carry valuable information about the condition of the patient. Together with the useful signal in the observer's eye beams fall from vacant parcels screen 8 located outside the x-rays 9. They are harmful because, having the greatest intensity, reduce contrast sensitivity vision and tire observer. You may be skipping pathology. To eliminate the side illuminator light box system is used for controlling the position of the picture and the brightness distribution of the image. Its functions are performed by the digital camera 16, mounted in front of the screen 8. The signal from the digital video camera 16 is fed to a digital processor 14 for controlling the operation of the illuminator (matrix modulator) 3. The algorithm of operation of the digital processor 14 is made in such a way that the matrix modulator 3 includes only those light cells, which cover the chest x-ray 9. Therefore, all field screen is 8 outside radiographs 9 remains dark 18 (figure 2). This situation remains the same at any position of the picture on the viewing screen 8, as well as a comparative analysis of several images. In addition, the digital processor 14 automatically manages contrast x-ray image, changing the mode of illumination of different areas of the picture, depending on the viewing mode. There are three modes of display: 1) equalization on the field frame (dark areas covered stronger, light - less); 2) normal with brightness adjustment; 3) increase contrast.

The choice of mode is made with the remote control switch 19 connected by a wire 20 with the digital processor 14.

In addition to the auto mode shading vacant parcels screen 8, is provided and manually perform the same function with the remote control keys 21, United electric wire 22 with the digital processor 14.

In addition to the x-ray images of the proposed device can be used to analyze images obtained by computed tomography, NMR tomography, ultrasound, electron microscope, as well as aerial photographs, satellite images, a variety of negatives resulting from physical research, for example in nuclear physics.

Sources of information (analogues)

1. Backus is in VA and other Rechentechnik. Reference 1 o'clock. M: mechanical engineering, 1980.

2. Rankin J. C., I. Orlov. About the prospects for the use of electroluminescent devices in radiology. - “Medical equipment”, 1970, No. 1, p.17-22.

3. USSR author's certificate No. 1063393, IPC And 61 In 6/00, 1982

4. Chichinin EG, Miskinis INTERNATIONAL encyclopedia of the radiologist. - M.: MNE, 1996. - 473 C.

1. Device for viewing images on translucent media, comprising a housing of rigid opaque material, which is located inside the illuminator projection screen mounted in the side window casing and provided with latches images, wherein the illuminator includes a matrix modulator, optically coupled with viewing the screen through a lens and mirror, controlled by the digital processor connected to the control unit image location on the viewing screen and the brightness distribution of the image installed on the outside of the housing, and a digital processor has the remote control operation modes.

2. The device according to claim 1, characterized in that prior to a viewing screen is a table of the operator.

3. The device according to claim 2, characterized in that the remote control operation modes of the digital processor mounted on the table operator.

4. The device according to claim 1, characterized in that the control unit is to introduce an image on a viewing screen brightness distribution of the image is a digital video camera.

5. The device according to claim 1, characterized in that the control unit image location on the viewing screen and the brightness distribution of the image is made in the form of a touch plate, combined with viewing the screen.



 

Same patents:

FIELD: optical engineering.

SUBSTANCE: method is based upon exposure of parts of light-sensitive medium by speckle pattern and subsequent processing of the medium. Exposed parts of light-sensitive medium have central and surrounding peripheral areas; the parts overlap each other with their peripheral areas. Exposure in central area is equal to preset value and exposure in peripheral area decreases linearly from preset value at its boundary with central area till zero at the boundary of exposed part. Shape, sizes and mutual disposition of exposed parts are chosen to provide constant exposition on whole surface of light-sensitive medium is constant and equals to preset value after process of exposure is finished. Indicatrix of diffusion is provided to be constant along the whole surface of speckle-diffuser at big sizes of speckle-diffuser.

EFFECT: improved efficiency.

3 cl, 6 dwg

FIELD: mechanical engineering.

SUBSTANCE: method concludes in locating and spacing of spherical surface to sections followed by subsequent mounting. Sections are located and spaced within preset sizes of screen in form of spherical surface reamer consisting of regular spherical pentagons and hexagons having stiffening rib along any face of a section. Length of chord between edge points of face of any section is chosen from relation of 1=2r cosΘ ; Θ=arctg 2cosβ/cosγ; γ=arcsin (sinα/sinβ); where r is radius of sphere, β=30°, α=54°. To make the screen of preset size the screen can be supplied with elements in form of truncated spherical penta- and/or hexagonal sections.

EFFECT: improved reliability; increased precision of making of spherical surface curvature.

2 cl, 2 dwg

FIELD: measuring equipment.

SUBSTANCE: device has reflector, means for producing image and optical system for projecting image on display, as light source a board with light diodes is used, light flows of which are concentrated on an optical system. Protector is provided with sensor of outer light level and connected to common current adjuster.

EFFECT: broader range of use, higher precision, lower energy consumption.

2 cl, 16 dwg

Projection system // 2242037
The invention relates to projection display systems of visual information by the optical projection of the visual screen

Projection system // 2242037
The invention relates to projection display systems of visual information by the optical projection of the visual screen

The invention relates to systems pullback film for projectors, in particular to the projector, suitable for pulling prints one format, and then switch to another format film without interrupting the operation of the projector during switching

The invention relates to advertising and exhibition case and can be used as a tool for multimedia visual support for presentations and various mass events indoors and outdoors, advertising campaigns, including in the areas of sales, exhibitions and fairs

FIELD: medicine.

SUBSTANCE: method involves measuring luminescence parameters in to areas on biological object (control area and case one). Each area is exposed to optical radiation action sequentially in spectrum segments corresponding to various tissular fluorophors luminescence excitation. Radiation components are selected from luminescence radiation caused by optical treatment applied to the areas on biological object in each of mentioned spectrum segments. Their intensity is measured synchronously with appropriate pulsation wave phase in corresponding biological object area. Device is usable for excluding artifact and general somatic state influence upon luminescence parameters measurement results.

EFFECT: high accuracy in estimating fluorescence properties of aerobic and anaerobic bacteria.

27 dwg, 3 tbl

FIELD: medical engineering.

SUBSTANCE: device has base bearing upright having members for fixing patient pelvis and members for fixing head and chest. Each fixing member is manufactured as clamp with six degrees of freedom and allowing rotation by 360° about longitudinal axis. The upright has pulley system, rope and ratchet winch for stretching the vertebral column. The base has separating protrusion.

EFFECT: reliable patient body fixation.

1 dwg

FIELD: medical engineering.

SUBSTANCE: method involves forming X-ray radiation flow, letting pass it through filter transparent mainly for high power radiation spectrum portion of X-ray tube. The filter is mounted in front of volume under study. The X-ray radiation flow is directed to transducers for recording X-ray radiation quanta. Data are read from the transducers and image is built by applying computer software. An additional X-ray radiation flow is let pass through the filter transparent mainly for low power radiation spectrum portion of X-ray tube and mounted in front of volume under study. Another embodiment of the invention is characterized with scanning X-ray radiation flow being produced. High power radiation spectrum portion is directed to a transducers row for recording X-ray radiation quanta. X-ray radiation flow is additionally let pass through the filter transparent mainly for low power radiation spectrum portion of X-ray tube and mounted in front of volume under study. The X-ray radiation flow is directed to an additional transducers row for recording X-ray radiation quanta set in parallel to the available row.

EFFECT: high quality of diagnosis.

FIELD: medicine, diagnostics.

SUBSTANCE: the present innovation deals with diagnostics by applying roentgenocontrast substances to detect muscular state at treating contractures and limbs' prolongation One should introduce a roentgenocontrast substance into tested muscle followed by roentgenography. Moreover, as a roentgenocontrast preparation one should apply nonionic preparation named "Omnipak". Roentgenocontrast studying should be carried out at maximum bending and unbending distal articulation being adjacent to limb's segment under studying, then one should detect muscular structure at roentgenogram in the form of its longitudinal or oblique-longitudinal striation and alteration in its belly length. Availability of structure dedifferentiation and fibrosis section at the level of regenerate in case of limb's prolongation or in different muscular departments in case of contractures illustrates considerable muscular alterations, and vice versa, safety of structure differentiation and altered length of muscle's belly shows its moderate alterations.

EFFECT: higher efficiency of diagnostics.

5 dwg, 1 ex

FIELD: medicine.

SUBSTANCE: method involves placing head in a way that sagittal plane of the head takes perpendicular relation with respect to table plane. The X-ray picture is taken with cranium sagittal plane being arranged in perpendicular to radiographic cassette plane and roentgen beam is directed vertically to its center tangentially to nose dorsum of patient.

EFFECT: reduced amount of radiation load.

3 dwg

FIELD: medicine, phthisiology.

SUBSTANCE: one should lymphotropically introduce the mixture of 5.0 ml 0.25%-novocaine solution and 2.0 ml 1%-dioxidine solution or the mixture of 5.0 ml 0.25%-novocaine solution and 0.5 g cefazoline subcutaneously into jugular cavity and deeply behind xiphoid process, successively 1 point once daily, 5-7 injections/course. After injection the site of injection should be treated either with heparin ointment or ultrasound (1-3 MHz, PPM 0.2 W/sq. cm, for 2 min, through Vaseline oil) followed by evaluating roentgenological dynamics of the process 10-14 d later.

EFFECT: higher efficiency of differential diagnostics.

3 ex

FIELD: medicine.

SUBSTANCE: the present innovation deals with radionuclide diagnostics of inflammatory processes in female inner reproductive organs and their complications due to injecting 199Tl-chloride intravenously followed by scintigraphy and detecting the area of inflammatory infiltration. Moreover, 199Tl-chloride should be introduced at the quantity of 5.0 mCi and at increased scintillation count in projection of inner reproductive organs being above the background value in soft tissues of the upper femoral third by 63.2 ± 16.2% it is possible to diagnose the presence of inflammatory process that corresponds to sub-acute or chronic stage, by 111.1 ± 20.2% and higher - to acute phase of inflammation, below 4.1 ± 1.8% - its absence and at availability of diffuse heterogeneous spread accumulation of radiopharmpreparation without any distinct borders one should diagnose pelvioperitonitis.

EFFECT: higher accuracy of diagnostics.

4 dwg, 4 ex

FIELD: medicine, radio diagnostics.

SUBSTANCE: one should intravenously inject osteotropic technetium99-labelled radiopharmpreparation followed by planar static scintigraphy, emission computer tomography and computerized informational processing due to building a three-dimensional model. Then comes comparative quantitative evaluation for accumulation of radiopharmpreparation in transplant's projection and in the part of intact bony tissue being transplant-symmetrical one to detect a corresponding coefficient of accumulation the value of which being ≥4.0 indicates restored efficient perfusion and intensive metabolic process in fragment's bony tissue.

EFFECT: higher accuracy and efficiency of diagnostics.

2 ex

FIELD: medical engineering.

SUBSTANCE: device has casing having fixed dials and indexes. The ruler has click unit mounted in the casing and controlled with Stop button and movable spring-loaded ruler movable transversely relative to longitudinally movable rulers each having two pins one of which is rigidly fixed on longitudinal ruler and the other one on the spring-loaded button end. The button is attached to longitudinal ruler and is movable along the ruler. The pins contact to the transverse ruler, one position allowing contact to its lateral surfaces and the other position to its bevels at not spring-loaded end. The transverse ruler is fixable to next step as a result of click unit entering into one of recesses next in turn. Indicating symbols are available on the transverse ruler, each corresponding to a longitudinal ruler and being sighted through a window available in the casing.

EFFECT: simplified operation method; excluded spoiled films; reduced risk of repeated patient irradiation.

4 dwg

FIELD: medicine, stereotaxic neurosurgery.

SUBSTANCE: the present innovation deals with treating cerebral glial neoplasms located in deep departments and functionally valuable cerebral areas. One should perform MRT and PET to determine the area for maximal tumor proliferation and carry out stereotaxic cryodestruction in this area and 2-3 mm beyond its limits. The method provides deterioration in tumor growth or its stoppage that enables to efficiently apply combined treatment and gives the chance for conducting therapy of tumors which traditionally are considered to be inoperable.

EFFECT: higher efficiency of therapy.

1 dwg, 1 ex

FIELD: medicine, cardio-vascular surgery.

SUBSTANCE: one should perform clinical and angiographic testing in two projections. By angiograms one should detect the types of aortal filling defects that form aortal coarctation. One should evaluate isolated aortal coarctation by its angiographic types which should be classified based upon combination of the types of aortal filling defects in two projections. Depending upon the type of aortal coarctation one should perform its catheter balloon angioplasty, stenting of affected area or surgical correction of aortal coarctation. The method enables to match adequate surgical treatment.

EFFECT: higher efficiency of diagnostics.

13 dwg, 2 ex, 3 tbl

Up!