Method for assessing hygienic state of removable dentures in partial adentia
SUBSTANCE: invention refers to medicine, namely to preventive and orthopaedic dentistry, and can be used in assessing the hygienic state of the oral cavity in the patient with removable dentures suffering partial adentia. An inner surface of the denture is coloured. A graphic mesh is applied. It is photographed, and a denture hygienic state index is determined. The graphic mesh is applied with using templates enabling dividing the inner surface of the denture into two segments. The inner surface of the denture is photographed with using a camera with a focusing centre lying along a median palatine suture at a mid-distance between a maxillary frenulum and a distal edge of the for maxillary dentures and along the line drawn between central incisors in the middle between a mandibular frenulum and a posterior edge of the denture, for the mandibular dentures. The dental deposit is assessed in each segment as 0 to 4 by the 4-point system, while the hygiene index is calculated by formula.
EFFECT: by using set of templates, method enables assessing the hygienic state of any removable dentures with partial adentia.
1 tbl, 3 dwg, 1 ex
The invention relates to medicine, namely to prevention and prosthetic dentistry, and can be used when assessing the hygienic condition of the mouth in patients with the presence of removable dentures partial absence of teeth.
Now to restore the integrity of the dentition with partial absence of teeth is widely used in manufacturing dental prostheses, while standard is the requirement to further hygienic care, which should be carried out, both within individual dental hygiene activities, and with the help of professional tools a dentist, a hygienist. Design features dentures partial absence of teeth, such as the possibility of their removal from the oral cavity, the presence of clasps or lock fastenings, the presence of additional retention points on the surface, contributes more to the formation of plaque on the inner surface of such prostheses and complicates the maintenance of optimal hygienic conditions dentures and mouth in General. However, to date there is a lack of ways to assess the hygienic status of dentures partial absence of teeth. All presented methods of hygienic assessment with the situation of removable dentures are for patients with complete absence of teeth, whereas for patients with partial absence of teeth, such techniques are not available.
There is a method of assessing hygiene dentures in the absence of teeth (S.SJeganathan, K.T.Thong, V.Chan, M.M.Singh A climicaly viable index for quantifying denture plaque // Quintessence International (Berline), 1996, Vol.27, No. 8, P.569-573), which consists in staining solution of erythrosine the inner surface of the denture in for 1 minute. Then the dye is washed off the surface of the dental prosthesis is dried and visual assessment of the surface of the dental prosthesis. Assessment of the level of hygienic condition of the dental prosthesis is determined depending on the ratio of the painted parts of the surface of the dental prosthesis to the total size of the inner surface of the dental prosthesis.
The disadvantage of this method is the large inaccuracy in the assessment of the level of hygienic condition of removable dentures because of the visual estimate of the amount of the colored part of the inner surface of the dental prosthesis and, as a consequence, little information value of this method.
The closest, according to the authors, analogue (prototype) is a method of determining the hygienic index used for assessing the hygienic state of the removable dental prosthetic in the absence of teeth PHI ((Schubert R, Schubert U. The prosthesis hygine index - a method for documentation and health education // Stomatol DDR. 1979 Jan;29(1):29-31). This method is staining within 5 minutes the inner surface of the denture in the absence of teeth. Then the dye is washed off the surface of the dental prosthesis is dried and is photographing the inner surface of the denture. The obtained photograph is applied graphic grid that divides the surface of the dental prosthesis on the segments, followed by the index estimation hygienic condition of the dental prosthesis based on the ratio of the colored segments to the total number of segments.
However, this diagnostic method is intended only for assessing the hygienic state of the removable dental prosthesis in the absence of teeth. In the method there is no description of the exact method of separating the inner surface of the dental prosthesis on the segments, thus, this procedure can be done about that can substantially reduce the accuracy of this method of assessing hygiene dentures.
The actual challenge remains the development of a method for identifying and assessing the hygienic state of the removable dentures partial absence of teeth.
The way to determine the hygienic status of dentures when part of the complete absence of teeth includes staining the inner surface of the dental prosthesis, the graphical mesh, photography and the index definition hygienic condition of the dental prosthesis, to obtain a graphical grid templates used for dividing the inner surface of the dental prosthesis on an equal segments, photographing the inner surface of the denture hold the camera with the center focus on the middle nebnom the seam at mid-distance between the maxillary frenum and the distal edge of the dental prosthesis to the maxillary dental prosthesis and a line drawn between the Central incisors at the middle point between the mandibular frenulum and the rear edge of the prosthesis, mandibular dentures, evaluation of staining of plaque in each segment are conducted on a 4-point scheme from 0 to 4, and the value of hygiene index calculated by the formula
The proposed method of determining the health state of dentures partial absence of teeth first by painting the inner surface of the dental prosthesis 5% solution of erythrosine for 5 minutes in order to detect the presence of plaque, then rinsed with water for 5 seconds to remove excess dye and dried with compressed air for 10 seconds. On the inner surface of the denture impose a template of the required size with a graphical grid.
Then photograph the inner surface of the denture with a graphic grid with a camera mounted on a tripod with the center focus on the middle nebnom the seam at mid-distance between the maxillary frenum and the distal edge of the dental prosthesis to the maxillary dental prosthesis and a line drawn between the Central incisors at the middle point between the mandibular frenulum and the rear edge of the prosthesis, mandibular dentures. The camera is placed at an angle of 90°.
Evaluation of staining of plaque in each segment are conducted on a 4-point the scheme from 0 to 4 and calculate the index value of hygiene, using the ratio between the total score of all segments and the total number of segments
To obtain a graphical grid in the proposed method uses templates that enable you to divide the image into equal segments. The templates are made of transparent flexible plastic and put them in a graphical grid that divides the inner surface of the prosthetic bed on equal area segments. There are 6 different sizes of templates for maxillary dentures partial absence of teeth and 6 sizes of templates for mandibular dentures (table 1).
|The total area and the area of the segments on the templates with graphic grid.|
|No. template||The total area, cm2. The upper jaw.||The area of the segment, cm2.The upper jaw.||Total 2 size, cm2. The lower jaw.||Area 2 segment, cm2. Bottom|
This allows you to use the proposed method for patients with any size of the jaws. The separation of the inner surface of the dentures into equal segments allows to accurately calculate the area of staining of the plaque.
Evaluation of staining of plaque in each segment are conducted on a 4-point scheme from 0 to 4:
0 - no staining;
1 - slight staining;
2 - colouring is less than half the surface area of the segment;
3 - staining more than half of the surface area of the segment;
4 - painting the entire surface of the segment.
The index value hygiene denture partial absence of teeth calculated using the ratio between the total score of all segments and the total number of segments
The results were evaluated as follows:
from 0 to 1.5 - excellent level of hygiene;
from 1.5 to 2.5 satisfactory level of hygiene;
from 2.5 to 4.0 - poor hygiene.
This allows you to get the most accurate and complete picture of the inside surface of the dental prosthesis.
Figure 1 presents a General view of the template of all sizes with printed graphics meshes. On figa depicted templates for maxillary dentures partial absence of teeth. Each template has a number from 1 to 6 with the letter "B". On figb depicted templates for mandibular dentures partial absence of teeth. Each template has a number from 1 to 6 with the letter "H". In addition, the templates specify the area (Stotalthe inner surface of the dental prosthesis and the area of one segment (Ssegm). Values of the total area (Stotaland square segments(Ssegmfor all of the templates listed in table 1 (p.5). Figure 2 shows the separation of the inner surface of the maxillary removable tooth crack is and segments to determine the hygiene index. Figure 3 shows the separation of the inner surface of the mandibular fixed prosthesis into segments to determine the hygiene index.
The proposed method of determining the health state of dentures partial absence of teeth allows the assessment of the hygienic condition of removable dentures with great precision, using a set of templates makes it possible to apply this method to all types of removable partial dentures with tooth loss. This allows you to get the most accurate and complete picture of the inside surface of the dental prosthesis.
Example: In the Department of Periodontology at the dental clinic has treated a patient for the purpose of conducting professional hygiene of the oral cavity.
After clinical and radiological examination she was diagnosed with "generalized periodontitis of moderate severity, cause secondary partial edentulous". A plan of the complex treatment of periodontitis, which contained the source for professional hygiene of the oral cavity and prosthetic dental structures.
To assess the state hygienic condition of the teeth and non-removable prosthetic dental structures were used: index of oral hygiene IG is-[OHI-S, Green, J.C.,Vermillion J.R., 1964], the index of the thickness of dental plaque PI [Sillness J. Loe N., 1964], the index of approximal tooth surfaces API [Lange D.E., 1977], and the index of the prevalence and intensity of destruction of periodontal tissues PI (Russel A.L., 1956)
To assess the hygienic status of existing patient A. removable dentures was applied the proposed method. The inner surface of the partial removable dental prostheses were stained with a 5% solution of erythrosine was rinsed with water for 5 seconds to remove excess dye and dried with compressed air for 10 seconds. Then for the upper jaw was selected and applied template with a graphic grid 4 size. To the inner surface of the denture lower jaw was selected and applied template with a graphic grid 3. The painted surface with superimposed graphics grid photographed by the camera (Nicon D90, Nicon Inc., Tokyo, Japan) at an angle of 90 degrees. The camera was mounted on a tripod (Slik Pro 340 DX, Testrite Inc., Newark, USA) with a Central focus on the middle nebnom the seam at mid-distance between the maxillary frenum and the distal edge of the denture (maxillary dental prosthesis), and a line drawn between the Central incisors at the middle point between the mandibular frenulum and the rear edge of the denture (mandibular dental about Azov).
Upon completion of photographing painted plaque was removed with a toothbrush and liquid soap under running water. Then dentures were returned to the patient.
Then evaluated the staining of the internal surfaces of dentures in each segment. The obtained data were included in the calculation formula, and were calculated the following values: 3.6 points for the maxillary denture and 3.2 points for the mandibular denture. Thus, the obtained value was interpreted as poor hygienic condition of the maxillary and mandibular dental prosthesis.
On the basis of the obtained data was determined amount for professional hygienic measures the patient A., installed the recommended algorithm for the individual patient dental hygiene activities, and conducted session with the patient in order to enhance motivation to maintain good hygienic condition of the mouth and prosthetic dental structures in the future.
The way to determine the hygienic status of dentures partial absence of teeth, including painting the inner surface of the dental prosthesis, the graphical mesh, photography and the definition of the Indus the KSA hygienic condition of the dental prosthesis,
characterized in that for obtaining a graphical grid templates used for dividing the inner surface of the dental prosthesis on an equal segments, photographing the inner surface of the denture hold the camera with the center focus on the middle nebnom the seam at mid-distance between the maxillary frenum and the distal edge of the dental prosthesis to the maxillary dental prosthesis and a line drawn between the Central incisors at the middle point between the mandibular frenulum and the rear edge of the prosthesis, mandibular dentures, evaluation of staining of plaque in each segment are conducted on a 4-point scheme from 0 to 4, where 0 points assigned if no staining, 1 score for minor staining, 2 points - staining less than half the surface area of segment 3 points - staining more than half of the surface area of the segment and 4 points - painting the entire surface of the segment, the value of hygiene index calculated by the formula
and when hygiene index equal to from 0 to 1.5, level of oral hygiene status was evaluated as excellent, from 1.6 to 2.5 - satisfactory, from 2.6 to 4.0 as unsatisfactory level.
SUBSTANCE: teeth to be restored are imprinted in silicone for diagnostic purposes without teeth preparation. A gypsum model is casted whereon a desired configuration of the teeth to be restored is modelled in wax. The wax model is contoured in silicone. The dental surface is thoroughly cleaned, and an inner surface of the silicone pattern in coated with an isolate compound. The silicone pattern is filled with acrylic resin polymer and placed onto the teeth to be restored. After the resin hardens, the plastic restoration is left on the patient's teeth. A flowable light cured pattern of a suitable colour is used for the aesthetic correction of an appearance of the plastic restoration in the patient's oral cavity. The plastic restored model is contoured in silicone which is used to make definitive restorations according to a common technique.
EFFECT: by making fit restorations with using the direct techniques, the method enables assessing the restoration result before the teeth preparation, making and placing the definitive restoration, and improving the aesthetic results of the restoration.
4 cl, 6 dwg
SUBSTANCE: invention refers to medicine, particularly to dentistry, and can be used for orthopaedic rehabilitation of the patients suffering postoperative upper jaw defects. A jaw obturator prosthesis comprises a rigid polyurethane basis with prosthetic teeth configured to fit a mucous membrane of the preserved hard palate tightly, and a hollow obturator configured in the form of a soft polyurethane frame within a junction of a scar ring and bearing a thin polished rigid polyurethane lid. The frame and lid are coupled by a mechanical retention of mushroom holes formed on an end surface of the soft polyurethane frame, and congruent mushroom flanges formed on an end surface of the lid.
EFFECT: invention enables recovering the phonetics and provides the reliable fixation of the jaw prosthesis by reshaping the obturator and using the structural materials of various rigidities when making it.
SUBSTANCE: invention refers to medicine, namely to dental orthopaedics, and aims at analysing the strength properties of temporary fixed dentures. A device for making identical experimental constructions of temporary fixed dentures consists of two mated rectangular box-shaped units and a stamp. The box-shaped units are made of a low-melting metal; an inner surface of each unit has a profile of a negative image of the construction of the temporary fixed denture longitudinally, and triangular saw cuts extending from occlusion surfaces of the negative image of each crown denture passing to the end surface of the box-shaped units. The inner surfaces of the box-shaped units have retention guides in the form of triangular spines on one unit and in the form of triangular recesses on the other one. Each of the end surfaces of the units projecting on the surface of abutment teeth has a profile of a positive image of prepared stumps. The stamp is made of a low-melting metal and has a profile of the positive image of the prepared stumps and prosthetic bed.
EFFECT: invention enables making the identical temporary dentures of various lengths made of various structural materials.
SUBSTANCE: space closure is staged: preparing two fibreglass pipes of a diameter of 1 mm having a length of a defect size. A ligature wire of a diameter of 0.250 mm is inserted into the fibreglass pipes. The fibreglass pipes are crossed over in the defect centre, and the ligature wire is hooked to form a figure of eight. Free ends of the ligature wire are fixed to dental brackets of abutment teeth. The fibreglass pipes are impregnated with a 5-Grade adhesive and polymerised with LED light. An individual artificial tooth is made of a photocomposite on the fibreglass pipes.
EFFECT: method enables providing higher quality of life in patients with bounded edentulous spaces, with partial primary and secondary adentia in the period of orthodontic treatment.
3 dwg, 2 ex
SUBSTANCE: invention refers to dentistry and is applicable for orthopaedic rehabilitation of patients with completely absent dentition. A removable denture consists of a basis made of a rigid polymer dental product with fixed false teeth, and an elastic part adjoining a prosthetic bed. Trough-shaped grooves 1 mm deep divergent radially from the centre and extending onto a vestibular surface of the denture within a transient fold into a right-angled chamfer along the perimeter of the denture are formed on the basis from an internal side facing the prosthetic bed.
EFFECT: invention provides the higher adhesion strength of the soft pad and the rigid carrier of the basis, its uniform distribution along the surface of the prosthetic bed, as well as a possibility of re-use of the denture if the physical-mechanical characteristics of the elastic part occurred to be disturbed.
SUBSTANCE: invention refers to veterinary science, namely to prosthodontic treatment, and is applicable in making removable nylon prosthesis for the upper front teeth, including high-crown ones, such as pointed teeth. Both jaws are impressed. Master moulds are cast of die stone. Working and additional models are placed into an occludator. A future prosthesis is delineated on the working model. A wax basis is made of a wax plate. A tooth is moulded in wax, mounted in a tray and placed in boiling water. The wax is extracted and replaced by acryl. After removing, the acryl tooth is processed and polished. A socket is drilled in a base of the acryl tooth. At least two through canals are drilled from the socket above a gingival level on a palatolateral and palatomedial tooth surface. A shallow notch is made a little above the socket bottom on the outside along the whole circular length with using a ball-shaped bur. The artificial tooth with retention canals and peripheral notch is aligned with a bite and mounted on the wax basis. After the tooth is arranged, an incisal-tooth-gingival rest is moulded. The model is prepared for casting in the tray, and the teeth that can be used as retention points are ground off. The model is cast in a lower portion of the tray. Before the upper portion of the tray is cast, a gate system is mould of wax. Both portions of the tray are coupled together and bolted up. Dental stone setting up is followed by unscrewing and placing in boiling water for 10 minutes. The tray is opened, residual wax is washed out with hot water, and mould and counter-mould surfaces are processed with a divisional polish. After the division polish dries, the tray portions are connected and screwed. The prepared tray is inserted into a heated injection machine, wherein nylon under pressure fills all the retention canals of the tooth extending in the cone bells, encloses and crimps the notch along the periphery. Further, the tray is removed from the injection machine. The tray is left at a room temperature for 20 minutes and then placed in cold water until cooled completely. After the tray is opened, the prosthesis is removed, cleaned from dental stone, processed and polished. The prosthesis is applied into an animal.
EFFECT: method enables making the removable nylon prosthesis of the upper front teeth in dogs, including high-crown teeth, such as pointed teeth by creating special retention canals and peripheral notches in the acryl tooth.
4 cl, 9 dwg
SUBSTANCE: rigid splint recording of the lower jaw position in relation to the upper jaw is prepared on a denture of one of the jaws. A surface of the recording splint is adjusted in relation to the denture surface of the other jaw. The patient is adapted to the optimum position of the jaws for at least two months to achieve a symmetrical position of heads of the maxillotemporal joints. The jaw casts are mounted in a regulated articulator with the use of an occlusion splint recording the jaw position to be thereafter removed, and a space for mounting prosthetic structures is formed. The optimum position of the heads of the maxillotemporal joints is determined by multispiral computed tomography findings, at least twice. For the first time - prior to the prosthodontic treatment, for the second time and further - upon completion of optimising the lower jaw position in relation to the upper jaw, and further - after the temporary fixation of the prosthetic structures in the patient's oral cavity.
EFFECT: method enables creating the optimum positions of the heads of the lower jaws in the maxillotemporal joints by using an occlusion splint as the maximum occlusion recorder.
4 cl, 1 ex, 10 dwg
SUBSTANCE: proposed alloy contains the following components in wt %: carbon - 0.36-0.55, silicon - 0.7-2.5, manganese- 0.25-1.00, chromium - 27.5-30.5, molybdenum - 3.5-6.0, tungsten - 0.55-1.55, boron - 0.03-0.10, nickel - not over 0.5 and iron - not over 0.3 Note here that total amount of molybdenum and tungsten does not exceed 4.5-7.0.
EFFECT: higher strength and lower melting point, sufficient linear expansion factor, antirust properties, machinability.
SUBSTANCE: milled occlusal template for the reproduction and formation of occlusal denture contacts in making single and/or crown fixed dentures by computed milling of an ash-free plastic pieces by optic impression immediately with wax dental reconstruction with the occlusal contacts. The occlusal contacts are modelled using an articulator including the occlusal relations of the centric and excentric contacts. A lower border of the milled occlusal template is specified at the level of an equator. An internal surface of the template matches with an occlusal surface of the wax teeth. The occlusal template consists of two equal halves coupled longitudinally to visualise and facilitate the restoration.
EFFECT: invention enables the accurate representation of the modelled occlusal dental surface to be reproduced in the dental restoration.
SUBSTANCE: invention refers to medicine, particularly to dentistry and applicable in making removable dentures, obturators and maxillofacial components. The method consists in the fact that depending on the quantitative content of gold and silver components, 99.99% or 75% pure gold or a gold alloy in the form of a foil, powder flocks of the thickness of 1 mcm (micrometre) to 8 mcm is taken; further a portion required for making a modified dental plate, an obturator or a maxillofacial prosthesis is separated on weight basis in the ratio of 300:1, wherein 300 is a weight part of acrylic plastic or silicone, while 1 is a weight part of gold and its alloys. Alternatively, the ratio can be varied with an increase or decrease of a portion of gold and its alloys in the modified acrylic or silicone material. Thereafter, the acrylic or silicone components are mixed thoroughly with the gold or alloy component, and mould into a prepared flask with a dental prosthesis, and polymerised by a traditional approach.
EFFECT: invention provides eliminating the patient's discomfort in the mouth cavity, reducing a microbial adhesion to the dental plate, as well as promotes the epithelisation of mucosal injuries of the prosthetic bed.
SUBSTANCE: invention refers to medicine and can be used for a tumour diagnosing. A device for measuring the haemoglobin concentration and a degree of blood oxygenation in mucous membranes involves an emitter configured as a set of emitters at various wave lengths or on the basis of a broadband emitter, an illuminating optical fibre, an elastic probe, an image recorder in the form of a CCD-sensor with a forward converging lens and an image processor. The emitter is coupled with an emitter control unit and an emitting channel distributor an output of which is connected to an input of the illuminating optical fibre arranged in the elastic probe, a tip of which comprises two mutually orthogonal polarisation filters one of which is connected to an output of the illuminating fibre, and another one - to the image recorder which is connected to a digital cable arranged in the probe, to the image recorder detecting the haemoglobin concentration and the degree of blood oxygenation in all image points of the mucous membrane formed on the CCD-sensor.
EFFECT: invention provides more accurate tumour diagnosing in the mucous membranes.
8 dwg, 2 tbl
SUBSTANCE: group of inventions relates to medical equipment. A measuring instrument comprises a scanning unit and a control unit. The scanning unit comprises a sensor forming a substance state signal and configured to be implanted subcutaneously, the main part holding the sensor with the main part configured for dermal placement, and an adjustable mechanism attached to the main part and enabling changing at least one of the positions and an orientation of the sensor. The control unit is configured to be attached to the main part and processes on receipt of a signal formed by the sensor. There are disclosed an alternative version of the measuring instrument and versions of the scanning unit used in the measuring instrument.
EFFECT: providing more accurate determination of the blood or tissue fluid parameters.
11 cl, 16 dwg
SUBSTANCE: at first the Kerdo index and a respective oxygen consumption model at various physical activity levels is constructed. Thereafter, the individual's oxygen consumption at the level of aerobic-anaerobic transition is derived from the measured Kerdo index, load power, exhaled carbon dioxide and values obtained at the stage of the model construction.
EFFECT: method enables measuring the anaerobic threshold of the individual's physical efficiency on the basis of the measured graduated cycloergometric load, the Kerdo index and carbonnometry.
1 dwg, 2 ex
SUBSTANCE: group of inventions relates to medicine. In method realisation vitally important parameter is measured by means of each on-body sensor and data are transmitted into control device. Inclination of at least one on-body sensor relative to control device is determined and location of said on-body sensor on body is determined. Quality of straight rout of data delivery between at least one on-body sensor and control device is determined. Quality is calculated on the basis of inclination and location of on-body sensor on body. On-body sensor network for control of multitude of vitally important patient's parameters contains: set of on-body sensors, control device, separate from body. Each on-body sensor has measuring unit and unit of transceiver.
EFFECT: group of inventions makes it possible to provide reliable and convenient control of vitally important patient's parameters due to reduction of dependence of working parameters on attenuation of radiofrequencies, caused by change of patient's position.
15 cl, 3 dwg
FIELD: physics, computer engineering.
SUBSTANCE: invention relates to computer engineering for processing medical images. A system for processing and displaying medical images includes a medical image processing module, having at least a medical image display module and a user comment initiation module. The disclosed system also comprises a user comment control module including at least a screenshot capture module or hook configured to capture a screenshot of operation of the medical image processing module during reception of a signal from the user comment initiation module. Said user comment control module also comprises a screenshot editing module or hook configured to enable editing of the captured screenshot to generate a user-edited screenshot.
EFFECT: alerting a software developer or maintenance specialist by facilitating feedback between them.
15 cl, 3 dwg
SUBSTANCE: method enables a cycloergometric pre-measurement of exercise tolerance according to PWC170 test, a minute pulmonary ventilation (MPV) by means of pneumotachography, and arterial oxygenation by means of an ear sensor of an oxyhemograph. If observing a decrease of exercise tolerance at power less than 1 W/kg for 2 minutes, an increase of MPV more than 350% of initial values, with an increase of arterial saturation more than 98%, a treatment starts with a manual therapy covering spinal motion segments in the number of 3 procedures every two days. That is followed by a balneotherapy in the form of thermal low-radon siliceous baths at temperature 38°C, for 10 minutes in the number of 6 procedures within the therapeutic course.
EFFECT: method reduces probability of chronic processes in bronchi, reduces rate of recurrent bronchitis ensured by normalising the external respiration function by eliminating the functional blocks in the spinal motor segments.
SUBSTANCE: invention relates to devices for measuring blood flow through body tissue. Device contains catheter, which has head for introduction into body tissue, and central component, which has surface for bringing out radiation, to which light guide, and reflecting surface, which is located opposite surface for bringing out radiation and is oriented at least partially with inclination with respect to longitudinal axis of light guide. Light guide is installed with possibility to direct beam of radiation, emitted by radiation source, onto reflecting surface, with deviation by reflecting surface of said radiation beam, which can be directed into body tissue. Radiation beam, reflected by body tissue, can be directed by reflecting surface into light guide. Head of catheter is divided into introduced part and adjacent to it connecting part, with several cavities being made in surface of introduced part. Diameter of introduced part increases towards connecting part, and cavities in introduced part are made with formation between them on surface of catheter head of bridges, extended towards connecting part.
EFFECT: application of invention makes it possible to reduce trauma of brain tissue in the process of carrying out measurements of blood flow and increase effectiveness of measurements.
21 cl, 17 dwg
SUBSTANCE: invention relates to medicine, and represents control device for diagnostics by examination in traditional Chinese medicine, which contains case, source of light and shooting construction. Said light source and shooting construction are located in said case, photoconducting component is located in said case, with said photoconducting component containing, at least, one photoconducting layer. Said light source is located inside photoconducting layer or on lateral transverse section of photoconducting layer, and said light source forms area light source with diffuse reflection of photoconducting component.
EFFECT: in claimed invention point light is converted into area light due to application of photoconducting component in light transmission, in this way medium of soft, stable and uniform illumination, similar to natural light, is created in control device.
21 cl, 8 dwg
SUBSTANCE: invention relates to medical equipment, namely to optical research devices. Device is made with possibility of, at least, partial placement into turbid medium and contains section of shank, made with possibility of placement into turbid medium, containing section of tip, in which, at least, one device of light source is made with possibility of radiating wide band light beam, and wide band light beam contains different bands of wavelengths, which are modulated in different way, and, at least, one photodetector for detecting wide band light in the area, made with possibility of placement of shank section into turbid medium. Device additionally contains demodulation and analysis unit, made with possibility of realising spectral analysis on the basis of electric signal, received from, at least, one photodetector, and with possibility of providing feedback signal for modification of wide band light modulation depending on signal, provided by photodetector.
EFFECT: application of invention makes it possible to reduce time of data collection with increase of their reliability.
13 cl, 4 dwg
SUBSTANCE: invention refers to medicine, namely to cardiology, and concerns diagnosis of a functional class of chronic cardiac failure (CCF). The diagnosis is implemented by developed formula taking into account assessed variations of a left ventricular end diastolic and a diastolic septal wall thickness determined by echocardiography, as well as variations of NT-terminal fragments of a brain natriuretic peptide precursor. The functional class of CCF is verified by a relation of expected values and the functional class NYHA of CCF.
EFFECT: method enables the adequate diagnosis of the functional class of CCF, including in the patients with counterindications for physical and pharmacological loading tests, as well as with no equipment required for stress tests.
4 ex, 1 tbl
SUBSTANCE: method involves carrying out ultrasonic scanning examination of subclavian artery over its whole extent in physiological arm position with arterial blood pressure being measured in the middle one third of the arm. Next, when applying compression tests, blood circulation parameters variations are recorded in distal segment of the subclavian artery with arterial blood pressure being concurrently measured. Three degrees of superior thorax aperture syndrome severity are diagnosed depending on reduction of linear blood circulation velocity and arterial blood pressure compared to their initial values. Mild one takes place when linear blood circulation velocity reduction reaches 40% and arterial blood pressure 20% of initial level, moderate one when linear blood circulation velocity reduction reaches 70% and arterial blood pressure 50% and heavy one when linear blood circulation velocity reduction is greater than 70% of initial level and arterial blood pressure is greater than 50% to the extent of no blood circulation manifestation being observed in the subclavian artery.
EFFECT: high accuracy of diagnosis.