65 results about "Blood viscosity" patented technology

The invention relates to the technical field of blood coagulation detection, and provides a blood viscosity sensor and detection system based on dual-mode surface acoustic waves, the blood viscosity sensor at least comprises: a substrate base; the first interdigital transducer group is arranged on the substrate base, and the first interdigital transducer group comprises two first interdigital transducers which are arranged at an interval along a first direction; and the second interdigital transducer group is arranged on the substrate base, and the second interdigital transducer group at least comprises two second interdigital transducers which are arranged at intervals along the second direction. According to the blood viscosity sensor based on the dual-mode surface acoustic waves, on the same substrate, through the first interdigital transducer group and the second interdigital transducer group which are arranged in two different directions, Rayleigh waves and shear horizontal surface acoustic waves can be excited at the same time, and by utilizing the complementary characteristic of the two-mode surface acoustic waves, the blood viscosity of the blood viscosity sensor based on the dual-mode surface acoustic waves can be measured. Unification of high sensitivity and wide detection range is realized.

The invention discloses a compound fish oil emulsion for preventing cardiovascular diseases and a preparation process thereof, and relates to the technical field of fish oil emulsions. Comprising the following raw materials: fish oil, rice bran fatty alkanol, a blood protein peptide concentrated solution, red yeast rice, haws, lotus leaves, flammulina velutipes extract powder, sorbitol, glycerin, citric acid fatty acid ester, monoglyceride and diglyceride, sweet orange oil, lemon oil and vitamins. According to the compound fish oil emulsion for preventing cardiovascular diseases and the preparation process thereof, the fish oil is beneficial to blood fat regulation, the red yeast rice contains lovastatin and can reduce cholesterol, and the hawthorn and the lotus leaves assist in reducing blood fat and act together with the fish oil, so that the blood fat regulation effect is enhanced, the blood viscosity is reduced, and the risk of cardiovascular diseases is reduced; the fish oil provides Omega-3 fatty acid, the blood protein peptide concentrated solution provides protein, and the rice bran fatty alkanol has nutritional and health-care effects, so that the nutritional value of the product is increased through synergism of the fish oil, the blood protein peptide concentrated solution and the rice bran fatty alkanol, the human immunity is enhanced, and the body function is improved.

The invention relates to the technical field of control of infusion pumps, in particular to a control method and system of an infusion pump. The method comprises the following steps: firstly, acquiring physiological parameters of an infusion patient, and extracting physiological parameters in an abnormal state; then, on the basis of the abnormal data, fitting of blood glucose change and blood viscosity increment is carried out, and blood vessel infusion resistance data are obtained through regression analysis; the infusion pressure range is dynamically regulated and controlled according to the resistance data, and the flow gradient in unit time is further adjusted; and finally, constructing an infusion self-adaptive parameter control model based on a strategy gradient algorithm, and embedding the infusion self-adaptive parameter control model into an infusion pump control system to realize accurate infusion adjustment and optimization. The control technology of the infusion pump is optimized, so that the control technology of the infusion pump is more perfect.

The invention relates to a dietary therapy formula for improving microcirculation of inner ears and a preparation method. Components with homology of medicine and food are selected, the black rice, the blueberries and the purple cabbages are rich in anthocyanin and beneficial to removing free radicals in cochlea and inhibiting hair cell apoptosis, the walnut kernels and the Chinese wolfberry fruits can improve blood vessel elasticity and protect auditory neurons, and the radix salviae miltiorrhizae, the hawthorn fruits and the radix puerariae can increase blood flow of inner ears, promote nutrition delivery, reduce blood viscosity and reduce vasospasm, so that the health-care food is suitable for being eaten by people. The whole component is low in sugar content, suitable for diabetics and capable of expanding the crowd. Effective components are processed into non-medicinal products, food therapy is beneficial to improving microcirculation of inner ears, relieving ear symptoms such as tinnitus and the like and delaying hearing loss, and a user can eat the food for a long time without psychological burden of medication.

The utility model discloses a rapid viscosity and density detection device for bionic blood, and relates to the technical field of detection equipment. A constant-temperature bath box is fixedly connected to the inner wall of the lower side of the supporting frame, a volume cup is arranged in the constant-temperature bath box, a capillary tube is connected to the lower end of the volume cup, a density measuring piece is arranged on the inner side of the volume cup, an optical fiber timer is connected to the inner side wall of the constant-temperature bath box, and the detection end of the optical fiber timer and the joint of the volume cup and the capillary tube are located on the same plane. Constant-temperature water is introduced into the constant-temperature bath box through the water inlet pipe, and it is guaranteed that the water temperature in the constant-temperature bath box is kept constant all the time; the bionic blood is guided into the volume cup, the density of the bionic blood is measured through the density measuring piece, and therefore the density of the bionic blood is obtained; then the optical fiber timer and a communicating valve on the liquid outlet pipe are opened, the optical fiber timer starts timing, timing is stopped after all the bionic blood in the volume cup flows out, the viscosity of the bionic blood is in direct proportion to the flowing-out time, and therefore the viscosity of the bionic blood is calculated.

The invention discloses a medicine formula for preventing cerebral infarction and promoting rehabilitation and a preparation method thereof, and belongs to the technical field of preparation of medicines for preventing cerebral infarction, the medicine formula comprises the following raw materials by weight: 10-15 parts of flatstem milkvetch seed, 10-15 parts of dodder, 10-15 parts of tortoise plastron, 10-12 parts of red peony root, 6-9 parts of safflower, and 15-30 parts of red sage root. According to the invention, the flatstem milkvetch seed, the semen cuscutae and the tortoise plastron are used for nourishing liver and kidney, replenishing essence and benefiting marrow, so that the traditional Chinese medicine theory that kidney dominates bone marrow generation and brain is marrow sea is met, and brain function decline is improved from the source; meanwhile, the radix salviae miltiorrhizae, the radix paeoniae rubra and the flos carthami have the effects of promoting blood circulation to remove blood stasis, activating meridians to stop pain, effectively improving brain microcirculation, inhibiting platelet aggregation and reducing blood viscosity, and supplement each other to achieve the effects of strengthening the body resistance to eliminate pathogenic factors and treating both symptoms and root causes, so that the traditional Chinese medicine composition can be used for preventing cerebral infarction of high-risk groups and is also suitable for functional recovery in the rehabilitation period after cerebral infarction.

State of art techniques for measurement of blood viscosity, RBC concentration and the like are in vitro methods. Embodiments of the present disclosure provide a method and system for in vivo non-invasive measurement of blood parameters using Laser Enabled Swept Frequency Acoustic Interferometry (LE-SFAI) principle. A Continuous Wave Laser diode based Photo Acoustic (CWPA) signal in frequency domain generated from laser excitation incident on a biological tissue of a subject carrying blood vessel is acquired by the ultrasound sensor and converted to a windowed time domain CWPA signal limited to two peaks. The signal characteristics such as risetime, amplitude, and time difference between first peak and the second peak are obtained to derive blood viscosity, Red Blood Corpuscles (RBC) concentration, and blood vessel diameter.

The invention discloses a traditional Chinese medicine composition and a traditional Chinese medicine preparation for treating sleep disorder caused by new coronavirus infection and a preparation method thereof, and belongs to the technical field of traditional Chinese medicines. Aiming at the problems that no medicine with definite curative effect exists for sleep disorder of a new coronavirus infected patient at present, and the medicine can only depend on the individual immunity of the patient to resist, the traditional Chinese medicine composition comprises the following traditional Chinese medicinal materials in parts by weight: 10g of radix pseudostellariae, 12g of radix paeoniae rubra, 10g of radix salviae miltiorrhizae, 6g of rhodiola rosea, 6g of exocarpium citri grandis, 5g of ginger processed pinellia, 15g of poria cocos, 15g of poria with hostwood, 15g of herba patriniae, 15g of tuber fleeceflower stem, 12g of hairyvein agrimony, 6g of liquorice, 10g of chrysanthemum and 6g of cassia twig. The traditional Chinese medicine composition is based on the principles of tonifying qi and activating blood, reducing phlegm and dredging collaterals, and clearing pestilence and soothing nerves, all the medicines are synergistic and supplement one another, the blood oxygen concentration and the red blood cell oxygen carrying capacity of a human body are improved, the blood viscosity is reduced, microcirculation is promoted, residual toxins are eliminated, and patients are helped to recover high-quality sleep.

The application provides a blood viscosity detection method, device and equipment. The blood viscosity detection method comprises the following steps: inputting a replacement fluid to a vein pipeline through a hard pipeline at a first flow rate, and determining a first inlet and outlet pressure difference of the hard pipeline; determining the viscosity of the replacement fluid according to the pipeline attribute of the hard pipeline, the first flow rate and the first inlet and outlet pressure difference; if the difference between the viscosity of the replacement fluid and the viscosity of water is within a first preset range, then determining a viscosity coefficient according to the viscosity of water, the first flow rate and the first inlet and outlet pressure difference; performing dialysis on blood, and determining the second flow rate of the blood in the hard pipeline after dialysis and the second inlet and outlet pressure difference of the hard pipeline in real time; and determining the real-time viscosity of the blood during dialysis according to the viscosity coefficient, the second flow rate and the second inlet and outlet pressure difference. The application solves the problem that the blood viscosity cannot be detected during hemodialysis treatment in the prior art.

1. The name of the product of this design: Red light therapy device (vertical). 2. The purpose of the product with this appearance design: used for anti-inflammation, detumescence, analgesia on the skin surface, improving blood viscosity, promoting blood circulation, accelerating wound healing, and auxiliary treatment of acne. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.

The present invention relates to the technical field of disinfection advertising screens, and specifically to a small space air purification and disinfection advertising screen, comprising a shell, the shell comprising a front shell, a rear shell, a front partition, a left wing plate and a right wing plate, the shell being made by combining the front shell, the rear shell, the front partition, the left wing plate and the right wing plate, and the interior of the shell being provided with a pneumatic system, a purification and disinfection system, an ecological negative ion emitter, a magnet fixing device, an electric control system and a host display system, and four independent spaces being provided in the shell, namely, space I, space II, space III and space IV. The purification and disinfection system module used in the present invention is washable, has a long service life, does not require regular replacement of the filter element, and greatly saves the cost of use; the product of the present invention can release ecological-grade negative ions through the ecological negative ion emitter, and the ecological-grade negative ions have excellent purification and dust removal effects, reducing the harm of secondhand smoke, improving the prevention of respiratory diseases, removing free radicals in the body, and reducing blood viscosity.

The invention discloses a single-stage negative oxygen ion flow device for purifying blood cells, which belongs to the technical field of electrotherapy, negative ion therapy and blood purification, and comprises a single-stage negative oxygen ion generation and targeted guide and grounding loop. According to the device, a high-purity negative oxygen ion flow with the particle size smaller than 0.01 mu m is generated through a single-stage negative high voltage and double shielding technology and enters a human body through skin / respiratory tract double paths, a device-human body-ground closed charge circulation loop is constructed, deep purification of blood cells is achieved through quadruple mechanisms such as cell membrane potential repair, and the purpose of purifying the blood cells is achieved. The device is suitable for household blood health care and auxiliary treatment of hyperviscosity and microcirculation disturbance of medical institutions, solves the problems of low ion purity, poor penetrability, target deficiency and the like of traditional equipment, and is high in safety and remarkable in purification effect.

A blood-clearing and lipid-lowering pill is composed of the following ingredients in the indicated weight ratios: Astragalus membranaceus 54-74, Salvia miltiorrhiza 54-74, Paeonia lactiflora 54-74, Carthamus tinctorius 33-53, Pheretima aspergillum 54-74, Hirudo medicinalis 33-53, Crataegus pinnatifida 54-74, Polygonum multiflorum 54-74, Cassia tora 54-74, Gastrodia elata 33-53, Uncaria rhynchophylla 54-74, Eucommia ulmoides 33-53, Achyranthes bidentata 54-74, Os draconis 54-74, Ostrea gigas 54-74, Prunella vulgaris 54-74, and Alisma plantago-aquatica 54-74. This invention can reduce blood viscosity to normal levels in a short period, allowing some patients with vascular stenosis exceeding 75% who require stents to avoid stent grafting, and enabling stroke patients to gradually recover their function.

The external application medicine bag is prepared from the following raw materials in parts by weight: 6 to 8g of flos carthami, 5 to 7g of ground beetles, 7 to 9g of leeches, 5 to 6g of akebia stems, 8 to 10g of herba taxilli, 6 to 8g of gadflies, 5 to 7g of sappan wood, 8 to 10g of radix salviae miltiorrhizae, 6 to 9g of radix paeoniae rubra, 5 to 7g of native copper, 7 to 9g of catechu, 8 to 10g of fossil fragments, 6 to 8g of oysters and 7 to 9g of rhizoma gastrodiae. The traditional Chinese medicine bag has the beneficial effects that the traditional Chinese medicine bag has comprehensive conditioning effects of dredging meridians and collaterals, removing stasis and blocking and reducing blood viscosity, can effectively prevent cardiovascular and cerebrovascular diseases through long-term local external application according to a treatment course, and has an auxiliary treatment effect on various common diseases such as hypertension, insomnia, anxiety, cerebral infarction and lumbar disc herniation; it is worth mentioning that by means of the three-dimensional structural design of the paper folding tea bag, the dissolution efficiency of effective components is remarkably improved, meanwhile, the packaging size is reduced by 60%, and the tea bag is more environmentally friendly and portable; meanwhile, through a standardized preparation process, the use convenience and safety can be taken into account on the basis of ensuring stable release of the drug effect.

The application belongs to the field of blood viscosity monitoring, and provides a resonance-based non-invasive blood viscosity monitoring method and system. The method comprises determining corresponding resonance frequency and resonance incidence angle; the signal wave of the resonance frequency is incident to the target blood vessel region of the current individual at the resonance incidence angle each time the measurement is performed, and the signal wave characteristic parameter at each time of measurement is extracted; the signal wave characteristic parameter comprises the propagation speed of the signal wave in the blood, the attenuation rate of the signal wave, the change of the phase of the signal wave, and the reflection intensity of the signal wave; the change direction of the blood viscosity in single detection is inferred according to the change of the propagation speed of the signal wave in the blood in the single detection process; and the blood viscosity value in single detection is obtained based on all the signal wave characteristic parameters in the single detection process and the relationship model of the signal wave characteristic parameters and the blood viscosity which is constructed in advance.

The utility model relates to medical equipment technical field discloses a kind of platelet-rich plasma separators, comprising: round plate, the outer surface of the round plate is fixedly installed with limit block.This kind of platelet-rich plasma separator, due to the design of movement mechanism, reach the flexible adjustment effect of centrifugal radius without replacing centrifugal cup, can be according to different patient blood viscosity, hematocrit and other indexes, accurately control centrifugal force, avoid platelet residue or excessive activation, significantly improve platelet-rich plasma preparation quality and biological activity.Discard the cumbersome operation of traditional replacement centrifugal cup, substantially improve operation efficiency, while reducing the mismatch risk caused by frequent replacement of spare parts, reduce the operation burden of medical staff, reduce equipment spare parts procurement cost and management difficulty, effectively improve the versatility and utilization of equipment, reduce hospital equipment procurement and maintenance cost.

1. The name of the product under this design: semiconductor laser therapy device (ML‑Y type). 2. Purpose of the product with this appearance design: Through laser nasal acupuncture points and irradiation, it improves blood rheology and microcirculation, and has an auxiliary effect on reducing blood viscosity, blood lipids and blood pressure. It is suitable for the auxiliary treatment of hyperlipidemia and cerebral infarction and the relief of clinical symptoms caused thereby. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.

The embodiment of the invention provides an optimization method and system for plasma matrix preparation parameters, and relates to the technical field of data processing.The method specifically comprises the steps that a hematology parameter set and a clinical target threshold value of a target patient are obtained, and the blood viscosity of the target patient is obtained based on the hematology parameter set; inputting the blood viscosity and the hematology parameter set into a target cell sedimentation kinetic model to simulate the motion trails of red blood cells, white blood cells and blood platelets in a plasma matrix preparation separation tube; based on the target cell sedimentation kinetic model, plasma matrix component distribution results corresponding to different centrifugal parameter combinations are predicted through Monte Carlo simulation in combination with movement tracks of red blood cells, white blood cells and blood platelets; and according to the plasma matrix component distribution results corresponding to different centrifugal parameter combinations, determining a target centrifugal parameter combination meeting a clinical target threshold. The centrifugal parameter combination can be generated in a customized mode, and the plasma matrix preparation efficiency is improved.

1. The name of the design product: semiconductor laser therapeutic instrument. 2. The use of the design product: for wearing on the wrist, by irradiating the acupoint (radial artery), to achieve the purpose of preventing and treating diseases such as improving blood rheological properties and reducing blood viscosity. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses a special diet for improving cardiovascular and cerebrovascular diseases and microcirculation disturbance and a preparation method thereof. The health food is prepared from the following raw materials in parts by weight: 30-35 parts of Chinese yam peptide, 30-35 parts of earthworm protein peptide, 20-25 parts of freeze-dried natto powder, 15-20 parts of euphausia superba oil microcapsule powder, 10-15 parts of red yeast rice powder, 5-10 parts of taurine, 5-10 parts of ginseng, 2-5 parts of vitamin C, 2-5 parts of vitamin B1 and 2-5 parts of vitamin B2. The Chinese yam peptide, the earthworm protein peptide, the natto freeze-dried powder, the euphausia superba oil micro-capsule powder, the red yeast rice powder, the taurine, the ginseng, the vitamin C, the vitamin B1 and the vitamin B2 are prepared into the special diet for improving cardiovascular and cerebrovascular diseases and microcirculation disturbance, and various natural plants are matched with active effective components of medicinal and edible foods, so that the special diet has the effects of being medicinal and edible and being free of toxic and side effects. Meanwhile, the nutrition intervention effect is achieved on serious diseases such as cardia-cerebrovascular diseases and the like; the traditional Chinese medicine composition can restore original vitality of heart and cerebral vessels, improve blood and oxygen supply functions of whole body tissues, and reduce blood fat and blood viscosity.

State of art techniques for measurement of blood viscosity, RBC concentration and the like are in vitro methods. Embodiments of the present disclosure provide a method and system for in vivo non-invasive measurement of blood parameters using Laser Enabled Swept Frequency Acoustic Interferometry (LE-SFAI) principle. A Continuous Wave Laser diode based Photo Acoustic (CWPA) signal in frequency domain generated from laser excitation incident on a biological tissue of a subject carrying blood vessel is acquired by the ultrasound sensor and converted to a windowed time domain CWPA signal limited to two peaks. The signal characteristics such as risetime, amplitude, and time difference between first peak and the second peak are obtained to derive blood viscosity, Red Blood Corpuscles (RBC) concentration, and blood vessel diameter.

The invention provides an apparatus for the measurement of blood viscosity, the apparatus for use in conjunction with a sample holder, the sample holder being a bob in a tube, the bob being configured for linear movement along the length of the tube, substantially without rotation; the apparatus comprising: a first attachment means for attaching the apparatus to a portion of the bob; b. second attachment means for attaching the apparatus to a portion of the tube; c. an actuator for moving the bob relative to the tube; ci. the movement being linear along an axis; being when combined with this sample holder the elongate axis of the tube; d. force measurement means for detecting the force transmitted by the bob when moved along the axis of the tube e. control means for actuating the actuator and measuring the resultant force thereby providing a measurement.

This invention belongs to the field of traditional Chinese medicine (TCM) technology, specifically relating to a TCM composition with detoxifying and uterus-warming effects and its application in the preparation of external products. The medicinal component of this external TCM product is composed of fenugreek, amethyst, rose, pomegranate seed, centella asiatica, long pepper, five-finger peach, lycopodium, litchi seed, and achyranthes bidentata. Animal experiments show that this product can significantly reduce the number of writhing movements in animals with cold-induced blood stasis type dysmenorrhea, lower COX-2 and PGE2 levels in the uterus, and improve peritoneal inflammation, demonstrating good detoxifying, blood stasis-removing, menstruation-regulating, and pain-relieving effects. Regarding blood rheology, it exhibits the effects of inhibiting platelet aggregation, dilating blood vessels, reducing blood viscosity, and balancing TXA2 and PGI2 levels, reflecting its effects of warming the kidneys and uterus, and strengthening the body's foundation. In summary, the TCM composition of this invention and its prepared external product can warm the kidneys and uterus, promote diuresis and eliminate turbidity, providing a novel TCM external application solution for the clinical treatment of cold-induced blood stasis type dysmenorrhea.

The present application relates to yellow rice wine preparation technical field, especially to a kind of mixed grain health-care yellow rice wine and preparation method thereof.The present application provides a kind of mixed grain health-care yellow rice wine, which is prepared from the following components by mass fraction: waxy millet 40-60 parts, waxy rice 30-40 parts, waxy millet 20-30 parts, waxy sorghum 13-17 parts, Chinese medicine compound 10-14 parts and fermentation inoculum 10-14 parts;The yellow rice prepared by the present application has bright color, refreshing taste, pure and elegant wine quality, unique flavor, and is rich in nutritional elements and Chinese medicine fermentation, which can promote blood circulation, promote tissue metabolism and enhance cell vitality.Long-term drinking not only has good health effect, but also can beautify and nourish skin.

An apparatus 200 for measurement of blood viscosity comprises a sample holder comprising a tube 10 and a bob 30. The bob moves linearly along the length of the tube without rotation. The bob and the tube are attached to the apparatus and the bob may be attached to a spherical magnet 50 with an elongated shaft 38, where an actuator 140, 104 provides linear relative motion between the bob and the tube. A force measurement means is provided that may be a torsion bar 100. A means to control the actuator is provided. The actuator 140 may be connected to the tube independent of the force measurement part. The actuator 104 may be attached to the bob and may form part of the measurement means. Repeated actuation of the bob and measurement of detected force over a period of time may be used to detect blood clotting. The apparatus may include a blood sampling tube comprising a chamber for holding blood sample, an inlet to the blood, a bob located within the tube above the sample in chamber and the chamber maybe sealed.

The invention provides a medicine composition for treating apoplexy and a preparation method thereof. The traditional Chinese medicine composition is prepared from astragalus membranaceus, ligusticum wallichii, angelica sinensis, safflower carthamus, peach kernels, red peony roots, elecampane, rhizoma acori graminei, parasitic loranthus, leeches, earthworms and acanthopanax. According to the traditional Chinese medicine composition, an original preparation process is improved, and the traditional Chinese medicines are prepared respectively according to the characteristics of the medicinal materials, so that anticoagulant and antithrombotic active ingredients in the medicinal materials are increased, a relatively remarkable treatment effect is achieved in clinical treatment, and the blood viscosity condition of a stroke patient is improved.

The application discloses a non-invasive real-time evaluation method and system for blood fluidity and a wearable device, and belongs to the technical field of biomedical signal processing and intelligent health monitoring. The method comprises the following steps: acquiring an event timestamp of a blood blocking device and a physiological signal of a blood health measurement module; automatically intercepting a signal segment of a recovery stage based on the event timestamp; parallelly calculating a plurality of independent indexes characterizing the recovery process; performing validity checking on each index, and eliminating invalid or abnormal candidate values; and outputting a final recovery time after blocking by using a dynamic adaptive fusion strategy. The application further discloses a detection system and a wearable device for realizing the method. The application uses recovery kinetics after pressure relief to represent blood fluidity, realizes automatic and accurate detection of the recovery time through a multi-index cooperative judgment and a dynamic fusion mechanism, effectively suppresses noise interference and improves robustness, and can be used for non-invasive evaluation of vascular elasticity, blood viscosity and microcirculation function.

The provided is a torsional guided wave-based blood viscoelasticity measurement device and method using a capillary metal tube. The device includes a housing, a capillary metal tube, a signal receiving module, and a signal excitation module, where the capillary metal tube is disposed inside the housing and configured to hold a blood sample; the signal excitation module is disposed at one end of the capillary metal tube and includes a cuboid permanent magnet and an electrode; the signal receiving module is disposed at the other end of the capillary metal tube and includes a cylindrical permanent magnet and a receiving coil; an excitation is performed on the capillary metal tube to generate a torsional guided wave; when a fluid viscosity in the tube changes, energy attenuation of the guided wave propagating along the tube differs; and the guided wave energy attenuation is defined to reflect a relative blood viscosity.

The invention discloses a micro-metal tube thrombus elasticity detection device and method based on an L(0,1) longitudinal mode guided wave. The device includes a device housing, a temperature control module, a micro-metal tube, and a magnetostrictive assembly. The housing is externally connected to the temperature control module to realize internal constant temperature, the replaceable micro-metal tube is installed inside, the magnetostrictive assembly composed of a permanent magnet and a coil is provided at one end outside the tube. An L(0,1) longitudinal mode guided wave is excited on the micro-metal tube. When liquid viscosity within the tube changes, the energy attenuation of the guided wave propagating along the tube is different. The energy attenuation of the guided wave is defined through the attenuation rate of multiple echo peak values to reflect changes in the blood viscosity.

The invention provides an aggregation-induced emission type photosensitizer with a dihydrodibenzophenazine structure as well as a preparation method and application of the aggregation-induced emission type photosensitizer with the dihydrodibenzophenazine structure, and the aggregation-induced emission type photosensitizer with the dihydrodibenzophenazine structure is obtained by connecting an aggregation-induced emission element with multiple rotors to a framework of a vibration-induced emission dihydrodibenzophenazine derivative. The photosensitizer with the dihydrodibenzophenazine structure integrates the advantages of aggregation-induced emission and vibration-induced emission, and can be applied to fluorescence imaging of biological tissues; the photosensitizer with the dihydrodibenzophenazine structure has viscosity responsiveness and photosensitivity, so that the photosensitizer with the dihydrodibenzophenazine structure can be applied to blood viscosity detection, thrombus imaging and tumor light diagnosis and treatment, and particularly, the photosensitizer with the dihydrodibenzophenazine structure has good performance in blood viscosity detection, thrombus, particularly in-vivo imaging of cerebral thrombosis and tumor light diagnosis and treatment.