30 results about "Arterial elasticity" patented technology

Vitamin K is effective in counteracting the reduction in arterial elasticity normally associated with the aging process. A pharmaceutical composition or nutritional formulation comprising vitamin K can be used to combat age-related stiffening of the arteries, and the consequences thereof, namely pulmonary congestion, hypertension, left ventricular hypertrophy, congestive (right sided) heart failure, left sided or left ventricular failure, chronic cardiac failure, angina pectoris, myocardial infarction, Mönckeberg's sclerosis and stroke.

An optical imaging system and a method for generating a report regarding elasticity of arteries in the brain of a subject under test. Light output from the light source of the imaging system non-invasively illuminates at least one blood vessel or region of interest in the brain and, upon the interaction with the vessel, is registered with an optical detector to obtain a shape parameter of a hemodynamic pulse in the vessel. The shape parameter is further correlated to an elasticity parameter of the blood vessel(s) feeding the brain region of interest and presented in a form of report that may be a two- or a three-dimensional image of the parameter across the tested region of the brain.

The invention provides a method to measure arterial elasticity and arteriosclerosis includes a measuring step and a sampling step to obtain a pulse waveform which represents the displacement of an arterial wall during elastic dilation and contraction. The method of the invention also includes a first differentiation step and a second differentiation step to respectively obtain a first differential pulse waveform and a second differential pulse waveform. The evaluation data is obtained when the arterial wall dilates to the maximum thereof. In an evaluating step, the maximum elastic force represented by the second differentiation of the maximum displacement of the arterial wall is divided by the maximum displacement of the arterial wall to obtain an arterial elasticity coefficient to determine extent of arteriosclerosis and prevent cardiovascular diseases. The present invention has advantages of noninvasive and direct evaluation to arterial elasticity, easy operation, high accuracy and low cost and thus has very high utility.

The invention provides an arterial elasticity evaluating device based on pulse analysis. The device comprises a left-and-right channel pulse signal detecting module, a computer and a data storage card, wherein the left-and-right channel pulse signal detecting module is connected with an analog-digital conversion module and used for collecting pulse signals of bilateral limbs of a subject; the data storage card is used for storing the pulse signals of the subject and a created arterial elasticity evaluation report; the analog-digital conversion module, the data storage card and a printer are all connected with the computer; the computer is used for performing real-time analysis on the pulse signals, displaying and storing, and printing control, as well as realizing evaluation on pulse signal quality, normalization of the pulse signals, creation and analysis of a pulse template, adjustment of wavelet characteristic parameters, arterial elasticity evaluation and creation of the evaluation report. With the adoption of the device, the pulse signals can be collected from different positions in both sides of the subject and then analyzed and treated on real time, so as to accurately evaluate the arterial elasticity of the bilateral limbs of the subject.

PROBLEMS TO BE SOLVED: A finger arterial elasticity measuring program, a finger arterial elasticity measuring device and a finger arterial elasticity measuring method are provided for making it possible to measure an elasticity index of a finger artery in accordance with a pulse wave of a finger artery without measuring a blood pressure in evaluating the elasticity of the finger artery related to the degree of arterial sclerosis in an easy and least expensive manner.MEANS FOR SOLVING THE PROBLEMS: A computer functioning by a finger arterial elasticity measuring program includes a pulse wave data memory unit 42, a cuff pressure data memory unit 43, a normalized pulse volume (NPV) calculating unit 52 for dividing an amplitude (ΔI) of an alternate component of a pulse wave by an average value of direct components (I) to calculate NPV, a relative cuff pressure (Pr) calculating unit 53 for calculating a difference between a cuff pressure at the maximum amplitude of the pulse wave and each cuff pressure as Pr, an FEI calculating unit 54 for calculating a linear regression slope (n) of the following expression (1) as an elasticity index of a finger artery: ln(NPV)=ln(bn)−n·Pr . . . (1) where b is a constant.

The present invention relates to the new use of alpha-ketoglutarate, amides, and salts and mixtures thereof for the manufacture of a pharmaceutical preparation or a food or feed supplement for the in vivo therapeutic improvement of blood vessel elasticity, in particular arterial elasticity in a subject in need thereof. Improving the blood vessel elasticity may be used in the for the treatment and / or prophylaxis of hypertension, pulmonary arterial hypertension, cardiovascular disease, retinal vascular disease, heart failure, atherosclerosis, ventricular hypertrophy, stroke, arterial aneurysm, kidney failure, nephrosclerosis and diseases related to hypertension.

Noninvasive angioplasty using momentary vacuum therapy (MVT) is applied to treat erectile dysfunction, peripheral artery disease, and deep vein thrombosis. MVT is a noninvasive angioplasty technique which momentarily increases blood pressure to flatten arterial plaque and increase arterial elasticity for peripheral artery disease and deep vein thrombosis. The workload on the heart will be reduced by the flattening of plaque and the increase in elasticity of the peripheral arteries. The reduction in workload may be a treatment for congestive heart failure (heart failure). For treating erectile dysfunction, MVT increases the elasticity of penile arteries but does not flatten penile plaque; when treating erectile dysfunction with MVT, only an increase in arterial elasticity is required.

The invention discloses a method for evaluating an arterial elastic function through pulse waves on basis of arm position variation. The method comprises the following steps: taking an arm of a subject as a reference arm; taking the other arm as a moving arm; synchronously measuring pulse signals of radial arteries of the two arms; recognizing collected signals by using signal analysis software; for the pulse signal at each testing position of each subject, intercepting pulse signals in set periods according to the starting point, and respectively performing normalization processing on the signals in the set periods; calculating the width of a waveform at the peak of a set percentage of the normalized pulse signals; taking the other arm of the subject as a reference arm for performing the same operation; calculating and analyzing the mean and variance of the peak width of the set percentage in two rounds of repeated experiments of each subject, and quantizing the waveform change conditions of the pulse signals in different positions of the arm, so that the arterial elastic function can be accurately evaluated according to the waveform variation.

The invention discloses a medicine for treating a coronary heart disease. The medicine is mainly prepared from uncaria, a Chinese fevervine herb, himalayan teasel roots, salvia miltiorrhiza, Cherokee rose fruits, hairyvein agrimony, a herb of spanishneedles, rhizomes and roots of ocreate greenbrier, amomum villosum, pittosporum tubiflorum, hawthorn fruits, astragalus roots, gingers, gaultheria yunnanensis, a perfoliate knotweed herb, motherwort, forsythia, tuber fleeceflower stems, Chinese mahonia and radix berberidis. The medicine can improve coronary blood-flow volume and increase myocardial oxygen content, enables the myocardial oxygen demand to be increased, improves the activity of dredging coronary arterial wall, increases coronary arterial elasticity and the like, can be used for treating the coronary heart disease, is remarkable in treating effect, short in treatment period, safe and free of side effect and enables the coronary heart disease not to relapse.

The invention discloses a method for detecting arterial characteristic parameters and a method for detecting arterial function and structure. The method for detecting arterial function and structure includes: obtaining the change of blood flow velocity in the artery, the change of the inner diameter of the artery, the change of the outer diameter of the artery, and the change of the inner diameter of the artery within a certain period of time. The data of blood pressure changes; calculate corresponding multiple sets of arterial elastic modulus and arterial characteristic parameters; substitute multiple sets of arterial elastic modulus and arterial characteristic parameters into the pre-built mathematical model to obtain multiple equations; The equation uses the fitting method to obtain the detection results of arterial function parameters and arterial structure parameters. The invention can non-invasively and quantitatively measure the structural parameters and functional parameters of the artery without relying on the cuff, can select multiple parts for detection, and improves the safety, convenience and accuracy of detection.

An apparatus for demonstrating the beneficial effects of elastic arteries comprising an input port connected to a one-way valve, the input port having an input cross sectional area; an expandable member having an input and an output, the input of the expandable member communicatively coupled with the input port and the one-way valve for allowing fluid to flow into the expandable member, and the expandable member capable of varying in volume based on a pressure exerted at the input port; and an output port communicatively coupled with the expandable member at the output for allowing fluid to flow out of the expandable member, the output port having an output cross sectional area that is smaller then the input port cross sectional area; and a method of demonstrating the beneficial effects of elastic arteries comprising providing an arterial elasticity simulator and analogizing concepts of cardiovascular physiology with the arterial elastic simulator.