Surgery guide, appropriate for patient and method for its application

FIELD: medicine.

SUBSTANCE: device is adapted to interface with an anatomical feature of a particular vertebra of a patient and comprises a medial body positioned adjacent to the vertebra and having a proximal end and a distal end, the first guide selectively attached to the medial body. The first guide has the first distal surface that is anatomically mated to at least one first contour of the said particular vertebra when the first guide is attached to the medial body, the second guide is selectively attached to the medial body. The second guide has a second distal surface that is anatomically mated to at least one second contour of the said particular vertebra when the second guide is attached to the medial body, wherein the first and the second distal surfaces are defined from the patient's anatomy and are complementary thereto.

EFFECT: use of the invention allows to increase the safety and effectiveness of the surgical procedure completion.

18 cl, 43 dwg

 



 

Same patents:

FIELD: medicine.

SUBSTANCE: invention relates to medicine. System for determining location of relief reference point on orthopaedic implant contains device, made with possibility of processing in autoclave. Said device contains case, field generator for generation of electromagnetic field, first electromagnetic sensor for placing at specified distance from relief reference point and element, connected with case with possibility of detachment. Case is made with possibility of processing in autoclave. Said field generator contains multitude of elements, generating magnetic field and located inside case. Said device is made with possibility of functioning after sterilisation in autoclave. First electromagnetic sensor for placement at specified distance from relief reference point generates sensor readings in response to generated electromagnetic field. Said element determines longitudinal axis, representing one axis of generated electromagnetic field. System is made with possibility of using one axis of generated electromagnetic field for determination of element position relative to relief reference point.

EFFECT: invention provides possibility of easy sterilisation or processing in autoclave for re-use.

15 cl, 62 dwg

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine, namely to a device and a method for magnetic particle exposure and/or detection in a field of vision. For zooming-out and still accessing a patient while forming an image, the device comprises two or more transmission coil sets with neighbouring coil sets overlapped partially. The transmission coil set comprises: a pair of concentric selection field coils for generating a magnetic selection field having such space distribution of its magnetic intensity that the first subzone having low magnetic intensity and the second subzone having higher magnetic intensity are generated in the field of vision; and at least one pair of travelling field coils for repositioning spatially the two subzones in the field of vision by the travelling magnetic field in such a way as to change magnetic particle excitation locally. The above at least one pair of travelling field coils is parallel to the above pair of selection field coils and is formed by the two neighbouring turns.

EFFECT: zooming-out and still accessing the patient.

13 cl, 11 dwg

FIELD: medicine.

SUBSTANCE: invention refers to medicine, functional diagnostics and can be used for preclinical, predoctoral examination, assessment of the functional state of body organs and systems, and pre-diagnosis. The method involves measuring electrical conductivity (EC) of 24 representing points of 12 symmetrical meridians, determining an arithmetic mean (AM) value of these measurements and specifying a corridor of permissible values for this patient, to which the derived values are compared in order to assess the functional state of the patient's body. That involves using the following criteria: a ratio of total ECs of Yin meridian points to total ECs of Yang meridian points, a ratio of total ECs of arm points to total ECs of leg points, a ratio of total ECs of left-side points to total ECs of right-side points. ECs are measured at voltages 5V, and/or 9V, and/or 12V. If the measurements are taken at 9V, the measured ECs are re-calculated by formula: I new=9/(29/I measured-0.1)*Coeff, (I); if the measurement process is performed at 12V, the measured values are re-calculated by formula: I new=9/(29/I measured-0.1)*Coeff, (I); and at 5V: I new=1 measured*Coeff, (III), wherein in (I), (II) and (III) respectively: I new is the re-calculated EC; I measured is the measured EC; Coeff is a correction coefficient taking into account a meridian conductivity heterogeneity. The re-calculated values are transformed into adjusted ones by formula: I adjusted=I new/I mean, wherein: I adjusted is the adjusted EC; I new is the non-adjusted re-calculated EC; I mean is the arithmetic mean value of all the 24 measurements. That is followed by delimiting an individual normal corridor for this patient depending on the preset diagnostic sensitivity S and a width of corridor of the permissible EC values Wpv. The Wpv represents a range of EC values measured in this patient, whereas the diagnostic sensitivity S is specified depending on selecting the patients with a certain disease. Delimiting the individual normal corridor for this patient is ensured by measuring intermediate coefficients for lower Kl and upper Ku corridor limits respectively: Kl=1-(1-S)*Wpv/2.1 and Ku=1+(1-Kl)*1.1. Lower L and upper U limits of the individual normal corridor are determined: L=Kl* I mean and U=Ku* I mean. That is followed by comparing I adjusted to the derived limits of the individual normal corridor.

EFFECT: method provides high accuracy of the individual diagnosis.

4 tbl, 2 ex

FIELD: medicine.

SUBSTANCE: invention relates to medicine, electric puncture screening-diagnostics and can be used in different fields of medicine, psychology, sport, where monitoring of person's state for long-term time period with operative correction of their indices is required. Electric puncture impact on person's corporal biologically active points (BAP) by means of hardware-software complex with application of positive and negative polarities, measurement of electric skin resistance (ESR) in BAP and further analysis of results by mutual location of ESP profiles are performed. Additionally carried out is spectral diagnostics, including analysis of spectral Fourier series of frequency changes, when measured point is adapted to provoking impact of measuring current, with further formation by means of computer programme of frequency therapeutic module, consisting of patient's functional frequencies, isolated from their frequency spectrum in case when they do not correspond to their standard indices. Frequency therapeutic module is aimed at diagnosed points to carry out operative correction of functional state of organs and systems. Analysis of spectrum of frequency characteristics is realised in range 0.015-100 Hz with discreteness 0.015. Frequency therapeutic modules are formed at specified time interval of 1 minute and longer depending on patient's state. Operation of diagnostics and correction of functional state of organs and systems is realised by cycle with period (1…N) depending on patient's state.

EFFECT: method provides increase of diagnostics accuracy due to increased quantity of diagnostic characteristics and optimal reduction of noise component, with reduction of quantity of diagnosed points, which provides reduction of diagnostics time, increase of long-term monitoring efficiency due to possibility of specifying diagnostic cycles.

5 cl, 5 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to devices for magnetic resonance. Device contains electric device or component, which includes printed circuit board, and radiofrequency shield, made with possibility of shielding electric device or component, with radiofrequency shield including earth bus of printed circuit board. Device is placed in opening of magnetic-resonance scanner in radiofrequency (B1) field. Earth bus of printed circuit board includes electro-conductive sheet or layer, which has openings, suppressing vibration of earth bus, induced due to changing in time gradient of magnetic field. Magnetic-resonance system contains magnetic-resonance scanner, including basic magnet, winding for creation of magnetic field gradient and one or more radiofrequency coils for production of radiofrequency (B1) field in studied area. Device is placed in opening of magnetic-resonance scanner.

EFFECT: application of invention makes it possible to improve efficiency of MR-compatible electric device work due to reduction of vibration, caused by radiofrequency field.

14 cl, 11 dwg

FIELD: medicine.

SUBSTANCE: invention can be used for diagnosing the Dupuytren's contracture (DC) of fingers. High-resolution MR imaging covering the palmar aponeurosis of interest is used to record the time of nuclear magnetic relaxation T2* on hydrogen nuclei of isotropic signal component of the CH2 lipid group. The derived coefficient T2* is inserted into the discriminate analysis equation: DC=-3.37+0.24·T2*. CD is diagnosed if the equation value is <0.313. If the derived equation value is ≥0.313, the diagnosis of DC is not confirmed.

EFFECT: technique provides the non-invasive one-hour verification of the DC diagnosis at the pre-clinical stage with no imaged signs of the contracture.

1 dwg, 3 ex

FIELD: medicine.

SUBSTANCE: invention is intended for visualising the structure of the atherosclerotic plaque in brachiocephalic arteries in the diagnostics of a risk of ischemic impairment of the cerebral blood flow (IICBF) in patients with extensive atherosclerosis and can be used in radiodiagnostics, neurology and vascular surgery. Contrasting T1-weighed spin-echo MRI of the neck and head area is carried out with thin cuts in the axial plane, 1-3 mm thick, with the compulsory inclusion of the area of the carotid arteries bifurcation, with the introduction of a contrast agent - paramagnet in a dose of 2 mM/10 kg of body weight. The examination is carried out twice: initially and 5-8 min after the introduction of the contrast agent-paramagnetic, an image amplification index (AI) is determined for the area of atherosclerotic plaque as the ratio of intensity of T1-weighed image with contrasting by means of the paramagnetic (IT1WIcontrast) to the intensity of T1-weighed image on the initial (IT1WIinitial) non-contrasting examination AI= IT1WIcontrast/IT1WIinitial. In case ofthe plaque presence in the area of the internal carotid artery or in the place of its deviation from the general carotid artery and AI value in the area of the said plaque larger than 1.22, risk of the acute IICBF development is predicted.

EFFECT: method provides high self-descriptiveness of MRI method of examination with the visualisation of the structure of the atherosclerotic plaque, identification of the presence of neoangiogenesis, which reliably increase the risk of rupture and ischemic affection of the brain.

8 dwg, 1 ex, 2 tbl

FIELD: medicine.

SUBSTANCE: invention is intended for visualisation of regions of local myocardium dystrophy in evaluating efficiency of radiofrequency ablation (RFA) of renal arteries in patients with resistant arterial hypertension. Before and after RFA T1-weighed spin-echo ECG-synchronised MRI of heart is conducted by cuts on short axis of left ventricle 7-8 mm thick 8-15 min after introduction of contrast paramagnetic substance in dose 2 ml of 0.5 M solution per 10 kg of body weight. Volume of contrast inclusion into myocardium and in case of its reduction by value less than 1 cm3 in comparison with value of said index before RFA, RFA is evaluated as effective.

EFFECT: method ensures clear visualisation of myocardium injury areas, their extension and localisation.

5 dwg, 1 tbl, 2 ex

FIELD: medicine.

SUBSTANCE: aponeurosis boundary is identified according to the findings of the geometry analysis of layered hand MR-scans in axial and coronary projections on 1H cores in the mode of proton density measurement. The palmar aponeurosis criterion is its thickness of more than 1×10-3m.

EFFECT: method provides the non-invasive pre-operative identification in vivo of the aponeurosis boundaries for no more than 40 minutes and makes it possible to form 2D-images according to MRT findings with the topographic-anatomic verification of the palmar aponeurosis spreading.

5 dwg, 3 ex

FIELD: medicine.

SUBSTANCE: device for correction of sleep characteristics contains sensor for registration of electrodermal activity EDA, connected with unit of analysis and extraction of signals of skin-galvanic responses SGR, generator of stimulating electric pulses, on-skin electrodes and control unit. Device is made in form of monoblock with possibility of fastening on user's palm. Monoblocks case has front and back side, and fastening elements. Three electrodes, placed with possibility of galvanic connection with skin of user's hand palm, are located on back part. Measuring electrode is connected to input of sensor for EDA registration, with stimulating electrode being connected to output of generator of electric pulses, with the third one being common neutral electrode of galvanic circuits of said sensor and generator. Units of analysis and extraction of SGR signals and control unit are made on base of microprocessor with possibility of periodical control of current condition of galvanic contact of electrodes with skin, cyclic measuring of SGR intensity and supply of stimulating electric pulses in pauses between SGR measuring, and provide three modes of functionality: sleeping mode - in absence of galvanic contact of electrodes with skin; mode of EDA registration - in presence of galvanic contact of electrodes with skin, including extraction of SGR pulses and counting their quantity N for given time interval and comparison with threshold value; mode of stimulation - if quantity N of SGR pulses exceeds threshold value, including periodical supply of electric pulses to stimulating electrodes during specified time interval.

EFFECT: invention application makes it possible to extend arsenal of technical means for correction of patient's physical condition during sleep and further wakefulness, increase index of slow-wave sleep stage, power of delta-waves and therefore deepen sleep sensation, phases of fast eye motions, and increase sleep quality in general.

9 cl, 10 dwg

FIELD: medicine.

SUBSTANCE: method involves carrying out urological examination for determining hydrodynamic resistance of ureter calculated from formula Z=8Lμ/(πR4), where Z is the hydrodynamic resistance of ureter, L is the ureter length, R is the ureter radius, μ is the urine viscosity. Angle α at which the ureter enters the urinary bladder is determined from formula cosα = 8l1μ/(ZπR4), where l1 is the perpendicular drawn from the upper edge of the ureter to the its exit projection line, μ is the urine viscosity, Z is the hydrodynamic resistance of ureter, R is the ureter radius. Vesicoureteral reflux recidivation is predicted when the angle of α+90° is less than 120°.

EFFECT: enhanced effectiveness in reducing the number of recidivation cases.

2 dwg, 1 tbl

FIELD: medicine.

SUBSTANCE: method involves testing homeopathic preparations selected according to clinical criteria in double blind electropuncture tests. Testing is carried out in two measurement points. The points are arranged on proximal ends of the middle portion of middle phalanges of the fourth fingers of the right and left hand. The hands are placed with palms on horizontal surface. Control value is recorded after taking each measurement. Homeopathic preparations are selected on maximum increase in their electropuncture readings and after checking measurements in 40 control points.

EFFECT: high accuracy of selection method.

1 tbl

FIELD: medical engineering.

SUBSTANCE: device has optically connected optical radiation source, light division unit, light guide and photodetector. Photodetector output is connected to video monitor, light guide end for transmitting optical radiation is removably set in medical needle pavilion. Polished light guide end is combined with needle end and manufactured at an angle of α determined from relation of arc sin (1/n2)< α < arc sin (n1/n2), where n2 is the light guide material refraction coefficient value and n1 is the epidural space tissue refraction coefficient value.

EFFECT: high accuracy of examination.

2 dwg

FIELD: medicine.

SUBSTANCE: method involves carrying out magnetic resonance tomography examination. Focal neurological brain disorders symptoms with growth to 10 days, process stabilization to 14 days and discovering isolated lesions in brain and spinal cord sized to 1.0 cm and having regular round and ovoid shapes with uniform, moderate intensity magnetic resonance signal on magnetic resonance tomograms being observed on the background of general infectious and moderately expressed neurological disorders, acute development course with complete recovery and no neurological deficiency is to be predicted. Neurological symptoms being observed on the background of lacking general infectious and general cerebral disorders with focal lesions increasing during 3 weeks with alternating short stabilization period and rapid arrival of new neurological disorders with pathological magnetic resonance signal foci being 1.5 to 6 cm large and having irregular heap-shaped forms fusing to each other with signals not uniform in intensity on magnetic resonance tomograms, subacute development course with moderate residual neurological deficiency is to be predicted in all patients. Slow (from 1 to 6 month long) neurological symptoms development of the disease being detected with torpid growth period and transition to relative stabilization period characterized with neurological disorders progress becoming slow, with diffuse zones of pathologically changed magnetic resonance signal from brain substance being observed on magnetic resonance tomogram, chronic development course accompanied with progradient disease pattern and development of hard multiple-syndrome neurological deficiency and resistant epilepsy in outcome is to be predicted.

EFFECT: high accuracy of prognosis.

FIELD: medicine, reflexodiagnostics.

SUBSTANCE: one should affect with electric current upon skin sections being the projections of biologically active Su-points of 12 paired belle-meridians. One should measure electroconductivity of these points, detect average arithmetic electroconductivity, determine functional activity of a meridian against a norm corridor. While studying Su-points of belle-meridians at both wrists one should affect the following biologically active points: A9, I11(7), E11(6), L3(5), D3(5), H10, B1(3), J6, F5, C35, K32, G69(68). At measuring Su-points of belle-meridians at one wrist one should apply for right-handed meridians Su-points located at a forefinger and the third finger, and for left-handed meridians - those located at little finger and the fourth finger. One should detect average absolute difference between electroconductivities of right- and left-handed meridians, detect activity for each meridian being an average value of absolute differences between the value of electroconductivity of the given meridian and values of electroconductivities of all the rest ones. One should detect the value for activity of all meridians, calculate individual norm corridor (INC) and plot it at the graph for each meridian. Then one should plot the health graph, detect functional activity of a meridian, calculate relative activity of every meridian, detect psychological peculiarities of a person based upon the analysis of meridians' state.

EFFECT: shortened terms of diagnostics, increased accuracy of prediction.

4 dwg, 1 ex, 1 tbl

FIELD: medicine.

SUBSTANCE: one should measure electric impedance of patient's middle ear. Electrodes should be applied in three localizations: auditory canal, anterior end of lower nasal concha and frontal skin. Electric impedance should be measured at the frequencies of sinusoidal signal being equal to 10, 30, 250 and 1000 Hz, the data obtained should be compared by values of electric impedance in the given area (middle ear) in the group of healthy patients. This method provides the chance to obtain comparative data for diagnostics of middle ear diseases.

EFFECT: higher accuracy of evaluation.

2 ex

FIELD: medicine.

SUBSTANCE: method involves introducing semi-finished products manufactured from various metal alloys having passed all technical treatment stages of dental prosthesis production and kept in artificial saliva not less than during 1 h. Their electrochemical potentials are measured. Metal alloy is selected for future artificial denture so that its potential differs from dental structures already available in patient's oral cavity not more than by 80 mV.

EFFECT: accelerated material selection.

3 dwg, 1 tbl

FIELD: medicine; medical engineering.

SUBSTANCE: method involves doing multi-channel recording of electroencephalogram and carrying out functional tests. Recording and storing rheoencephalograms is carried out additionally with multi-channel recording of electroencephalogram synchronously and in real time mode in carotid and vertebral arteries. Electroencephalograms and rheoencephalograms are visualized in single window with single time axis. Functional brain state is evaluated from synchronous changes of electroencephalograms, rheoencephalograms and electrocardiograms in response to functional test. The device has electrode unit 1 for recording bioelectric brain activity signals, electrode unit 2 for recording electric cardiac activity signals, current and potential electrode unit 3 for recording rheosignals, leads commutator 4, current rheosignal oscillator 5, synchronous rheosignal detector 6, multi-channel bioelectric brain activity signals amplifier 7, electrophysiological signal amplifier 8, demultiplexer 9, multi-channel rheosignal amplifier 10, multi-channel analog-to-digital converter 11, micro-computer 12 having galvanically isolated input/output port and personal computer 13 of standard configuration.

EFFECT: enhanced effectiveness of differential diagnosis-making.

11 cl, 6 dwg

FIELD: medical engineering.

SUBSTANCE: device has test unit having unit for treating the object under study, unit for programmed recording and processing data having amplifier and analog-to-digital converter connected to computer device having display unit. The test unit and unit for treating the object under study are manufactured as at least two radiation sources operating in red radiation bandwidth, the sources being connected to power supply source, and at least two photodetectors, each making an optoelectronic oxyhemometric transducer with corresponding radiation source. Each transducer is connected to multi-channel analog-to-digital converter via corresponding amplifier. The unit for programmed recording and processing data norms relationships of blood saturation with oxygen on amplitude recorded in time for each optoelectronic transducer to determine their phase difference.

EFFECT: enhanced effectiveness of tests.

5 cl, 1 dwg

FIELD: medicine; cosmetics; medical engineering.

SUBSTANCE: method involves checking skin state, giving massage treatment with infrared radiation in remote infrared spectrum zone being used, ozone massage, low frequency wave massage, low frequency vibration wave massage and ultrasonic massage, cleansing skin, giving skin care and introducing nutrients into the skin. Device has units for acting with low frequency waves, infrared radiation in remote infrared spectrum zone, low frequency vibration waves and ultrasound, cleansing skin, checking skin state, and working key unit, presentation unit, memory unit, power supply unit, unit for initiating skin cleaning and skin care.

EFFECT: enhanced effectiveness of treatment.

17 cl, 9 dwg, 3 tbl

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