69 results about "Heat injury" patented technology

The present invention provides systems, apparatus and methods for selective applying energy to a patient's dermis tissue to generate the growth of new collagen in this tissue, while minimizing the effect on the outer epidermis layer, thereby minimizing or suppressing the wound healing phase of the procedure. In one aspect of the invention, a method includes positioning a first electrode adjacent to, or in contact with, a region on or within a patient's skin, and applying a sufficient high frequency voltage between the first electrode and a second electrode to create a heat injury to a target tissue within the patient's dermis layer without ablating the epidermis layer overlying the target tissue. Typically, the voltage applied to the first and second electrodes is sufficient to induce heating of the dermis layer to about 60.degree.-80.degree. C., preferably about 65.degree.-75.degree. C. This induced heating causes the patient's body to undergo a wound healing response in the slightly inflamed tissue of the dermis. The wound healing process involves the generation of neo-collagen in the dermis layer, which fills in the wrinkle in the patient's skin.

The invention relates to a surgical skull grinding temperature online detection and controllable handheld grinding device. The surgical skull grinding temperature online detection and controllable handheld grinding device is high in control precision, and skull grinding acoustic emission signals are monitored, so that the rotational speed of a grinding wheel is adjusted, the grinding temperature is reduced in a skull grinding procedure, and heat injury to brain tissues of a patient can be effectively prevented. The surgical skull grinding temperature online detection and controllable handheld grinding device comprises a shell, the grinding wheel is mounted at the front end of the shell and is connected with a direct-current motor by a transmission, an acoustic emission sensor is arranged at a joint of the grinding wheel and the shell and is connected with a signal analysis processing module by a conducting wire, the signal analysis processing module is arranged in the shell and is respectively connected with a feedback device and a display and alarm device, and the direct-current motor is connected with a direct-current power source by the feedback device via a control switch. The signal analysis processing module receives the acoustic emission signals which are generated during skull grinding and are detected by the acoustic emission sensor, whether an overheating condition occurs or not is judged, and the rotational speed of the direct-current motor is controlled via the feedback device.

The invention relates to an end mill with an end blade for quickly milling a carbon fiber composite, belongs to the field of cutting machining of materials difficult to be processed and relates to a special cutter for quickly milling a blind slot, a blind window and an irregularly shaped blind hole of the carbon fiber composite. A cutting blade is designed on an end part of a milling cutter of the end mill; end face scrap accommodating slots are formed on the end part; the end mill is composed of an end blade part, a changeable scrap-dividing slot helix angle peripheral blade part, a cutter handle part and a transition arc blade of the peripheral blade and the end blade; two parallel end face scrap accommodating slots are formed on the end blade part; end blade scrap accommodating slots are formed between the blades of the end blade; and the changeable scrap-dividing slot helix angle peripheral blade part has an asymmetrical spiral staggered structure and is equipped with a plurality of tiny teeth staggered by m right-hand spiral grooves and n left-hand spiral grooves. The changeable helical angle scrap-dividing slot is adopted by the end mill, so that the fluttering effect of the cutter while milling can be reduced, the scrap accommodating property while milling is promoted, the heat injury of the composite is reduced and the quick, stable and effective processing for the carbon fiber composite is promoted.

The invention discloses an instant collagen lyophilized ball which comprises the following components in percentage by mass: 14-20% of collagen, 10-15% of trehalose, 10-15% of pullulan, 30-56% of mannitol and 10-20% of sterile injection water. The invention further discloses a preparation method of the instant collagen lyophilized ball. The instant collagen lyophilized ball has the repairing function; the prepared collagen lyophilized ball has very strong hydrophilicity, can be quickly and uniformly dissolved in the use moment, and can be used for reparation and maintenance of skin suffered from medical plastic surgeries of laser, photon, refrigeration, high frequency, grinding, face-lifting and the like; the instant collagen lyophilized ball can be used for treating skin damages, caused by acne or trauma, of depressed scars, couperose skin symptom, skin atrophy, sun burn, heat injury and the like. The instant collagen lyophilized ball prepared according to the method has very strong hydrophilicity, can be uniformly dissolved instantly when in use, is more convenient and fast to use and long in guarantee period, can be stored at the room temperature, and is very convenient to store.

The invention relates to a navel orange surface drying monitoring method and a device based on the infrared thermal imaging technology. The device consists of a drying box 1, rollers 9 and 10, speed regulating motors 7 and 8, resistance wires 4, a draft blower 5, a controller 6, an infrared thermal imager 2, a computer and image processing software. The method comprises the following steps: sending navel oranges into the drying box after cleaning and waxing, and exciting the navel oranges by an external heating system while constantly rolling the navel oranges under the drive of the rollers; and adopting the infrared thermal imager to monitor infrared radiation information on the surfaces of the navel oranges, carrying out image processing and curve fitting, using a computer to precisely regulate and control a driver and a heating device, and further leading the temperature on the surfaces of samples to be dried to be more uniform. The method and the device introduce and apply the thermal infrared optical detection and the temperature monitoring means in the navel orange drying monitoring control process, thereby preventing the over-heat injuries or the residual water phenomenon on the surfaces of the navel oranges and creating conditions for the follow-up standard classification of the navel oranges. The method and the device are applicable to the post-production drying monitoring treatment of the navel oranges, as well as the post-production drying monitoring treatment of other fruits.

The invention discloses a non-contact spraying skin cooling device for laser therapy. The non-contact spraying skin cooling device comprises a refrigerating fluid storage tank which is arranged in a thermostat with a temperature control function. The refrigerating fluid storage tank is connected with a tee joint through a filling valve. One of the other two ends of the tee joint is connected with a liquid level sensor, and the last end is connected with a ball valve and a high-pressure hose. The other end of the high-pressure hose is connected with a high-speed solenoid valve. A control system driving the solenoid valve is connected to the solenoid valve. A stainless steel nozzle is connected to the output end of the solenoid valve. As an independent device, the non-contact spraying skin cooling device can be used in cooperation with a therapeutic hand tool of any laser therapeutic instrument and can also be used as a component to be integrated in any laser therapeutic instrument; the epidermis of a patient is cooled in a laser therapeutic operation, and heat injuries to epidermal tissue are effectively reduced; meanwhile, the irradiation depth of laser energy is increased, and the therapeutic effect is greatly improved.

A ceramic hollow sphere multi-layer brazed diamond block is characterized in that the diamond block comprises, by mass, 12-20% of diamond abrasive particles, 2-4% of nickel plating graphite particles, 7-20% of ceramic hollow spheres, and the balance nickel base alloy comprising chromium, and the melting point of the nickel base alloy comprising chromium is lower than 1000 DEG C. Compared with a traditional sintered diamond tool, the ceramic hollow sphere multi-layer brazed diamond block has the advantages that due to the adoption of the brazing method with active filler metal Ni-Cr-Cu-B-Si or Ni-Cr-P used, chromium carbide is formed at the interface of diamond, and holding strength of the diamond is greatly improved; the nickel plating ceramic hollow spheres are added and the nickel plating enables chemical metallurgical bonding to be achieved between the ceramic hollow spheres and the brazing filler metal, therefore, requirements of a grinding wheel on the gas hole ratio are met, and gas holes are spherical; the adding of the ceramic hollow spheres enables the diamond block to have certain brittleness, and self-sharpening of the diamond block is facilitated; the added graphite can improve lubricity and reduce heat injury of the diamond; due to the fact that copper is added to Ni-Cr-B-Si, the heat injury of the diamond is further reduced.

The invention provides a new method of crystal silicon solaode thermal diffusion to prepare PN knot, the method relates to filed of crystal silicon solaode technique, steps includes: adding step of silicon piece cooling, controlling temperature and time to craftwork of producing PN knot in step (3) of normal crystal silicon solaode, that is cooling before silicon piece departs high temperature diffusion furnace, temperature of the silicon piece in quartz tube is decreased for 200deg.C-300deg.C. Concrete steps are following: a. setting thermal diffusion craftwork parameter to prepare PN knot; b. cooling silicon piece in quartz tube to make temperature of silicon piece 200deg.C-300deg.C lower than diffusion temperature, time of cooling is (10-60) minutes; c. picking up silicon piece from quartz tube. Adopting said new method can decrease heat injury of crystal silicon, decrease heat stress curving or cataclasm, decrease affect of impurity to PN knot, current, voltage, power and photoelectricity conversion efficiency of crystal silicon solaode can be increased, cost of production is decreased.

The invention relates to a method for electrosparking in an atmospheric pressure cold plasma jet, and belongs to the field of machining and tools. The macroscopic temperature of the atmospheric pressure cold plasma jet is lower than the room temperature or slightly higher than the room temperature, and any heat injury to a surface to be machined is avoided. During work, a work gas source enters a cold plasma jet generator through a pressure reducing valve and a gas flow and quality controller; and the flow of the work gas source and the output voltage of a high-voltage power source are adjusted, and therefore the cold plasma jet generator can generate the stable cold plasma jet. The position of the cold plasma jet generator is adjusted, and therefore the end of an electrode and to-be-machined areas of workpieces can be completely immersed in the cold plasma jet. According to the method for carrying out electrosparking in the atmospheric pressure cold plasma jet, under the same machining condition, the surface roughness and the electrode consumption lower than those in deionized water and the surface quality better than that in gas can be obtained.

The invention provides a disposable intraoperative bone powder collector, which relates to the field of medical equipment, and comprises a collecting container, a negative pressure connecting pipe and a middle ear aspirator connecting pipe, wherein a detachable end cover is arranged on one end of the collecting container and is communicated with the middle ear aspirator connecting pipe; a middle ear aspirator connector is arranged on one end, far away from the end cover, of the middle ear aspirator connecting pipe; the other end of the collecting container is communicated with the negative pressure connecting pipe; a negative pressure aspirator connector is arranged on one end, far away from the collecting container, of the negative pressure connecting pipe; a filter device is arranged in the collecting container and is connected with the inner wall of the collecting container. The disposable intraoperative bone powder collector provided by the invention solves the technical problems of heat injury easily caused on tissues, poorer local hemostatic effect, non-ideal surgery cleanliness degree, waste of healthy bone powder and poor collecting effect in the prior art.

The invention belongs to a nondestructive detection technology, and relates to a making method of burn standard samples for verifying the Barkhausen detection sensitivity. In the invention, a laser instant heating process is adopted to make heat injury defects having different degrees, the burn degree is controllable, and the operation is simple; and made heat injury defects are made in a grading manner and have three grades of heat injuries comprising slight over-tempered burn, severe over-tempered burn and quenching burn, so it is very representative for grinding burn defects. In the invention, samples having different burn grades of the heat injury defects are successfully obtained, the dimensions, shapes and positions of the heat injury defects of the samples can be determined according to test requirements, and the making process is easy to control, so the samples are especially suitable for verifying the apparatus sensitivity in the Barkhausen detection and verifying the detection sensitivity, and can also be applied to make a Barkhausen detection acceptance standard in order to provide a basis for the evaluation of the heat injury defects.

The invention belongs to the technical field of tobacco planting, and discloses a tobacco planting method preventing heat-forced maturity. The method comprises the steps that in the tobacco growing period, the environment temperature is measured, and when the environment temperature is greater than 25 DEG C and less than or equal to 35 DEG C, a secondary metabolism inducer is sprayed; when the environment temperature is greater than 35 DEG C, a light damage control agent and the secondary metabolism inducer are sprayed, wherein the light damage control agent is a 10-20 mmol/L CaCl2 aqueous solution, each liter of the sprayed secondary metabolism inducer is prepared by mixing 0.5-1 mg by mass of 24-epicastasterone, 100-200 mg by mass of salicylic acid, 10 mg by mass of methionine, 1 mg by mass of cortex periplocae polysaccharide and 1 mg by mass of sodium phosphate, and the solvent is water. After tobaccos are planted through the method, the heat injury phenomenon of tobacco leaves is obviously weakened, the plant morbidity is obviously lowered, and the heat-forced maturity phenomenon in the tobacco planting process can be effectively prevented.

The invention discloses a natural black hair dyeing composition which comprises a composition A and a composition B. The composition A comprises, by weight, 0.1-10% of hydroxyethyl cellulose, 0.1-10%of compound amino acid, 0.01-2% of EDTA-2 natrium, 0.01-2% of p-phenylenediamine, 0.01-1.25% of resorcinol, 0.1-15% of vitamin C, 0.1-10% of sodium sulfite, 0.1-15% of triethanolamine, 0.1-10% of ethanol amine, 0.1-10% of speckle aloe extracts, 0.1-10% of ginseng extracts, 0.1-10% of cockscomb extracts, 0.1-10% of large-leaf Pu'er tea extracts, 0.1-10% of polyquaternium, 0.01-2% of an antiseptic composition, 0.1-10% of phosphoric acid, 0.1-15% of potassium hydroxide, 0.01-2% of essence and the balance deionized water. The composition B comprises, by weight, 0.1-10% of hydroxy propyl cellulose,0.1-5% of reducing glue, 6-20% of hydrogen peroxide, 0.01-1% of a hydrogen peroxide stable composition, 0.1-10% of potassium hydroxide, 0.1-10% of phosphoric acid and the balance deionized water. Thehair dyeing composition can rapidly dye hair, effectively reduce and even eliminate allergy, protect hair follicles from chemical contamination injuries, reduce hair mechanical injuries and heat injuries and prevent alopecia.

The invention discloses a quantitative evaluation method for laser cladding remanufacturing product heat injury feature, wherein the method is used for solving technical problems of single feature, incapable quantitative describing and the like of the existing heat injury evaluation method. According to the method, structure microscopic continuity damage feature, phase change, hardness drastic change and matrix softening caused by material feature difference, residual tensile stress affecting fatigue life, and other physical quantities to co-describe the injury. The technical scheme comprises that the material the same as the laser cladding remanufacturing product and the process are used to carry out single track cladding on the regular surface, the micro-pore feature on the cladding layer cross section and the hardness curve feature on the cross section are detected through the testing method, the feature of the residual stress produced during the laser heat process is calculated through the finite element method, and the injury feature obtained from the experimental and simulation results is combined with the influence of the injury feature on the structure strength to convert the influence into the scalar quantity from 0-1 through mathematical conversion so as to achieve the purpose of the quantitative description of the injury.

The invention relates to the technical field of medical instruments, in particular to a low-temperature cold knife used in the abdominal cavity in the laparoscopic surgery process. Electrosurgical equipment currently used has the shortcomings that due to the effect of converting high-frequency discharge electric energy into heat energy, heat injury of surgical wound tissue is caused, and it is not good for healing of surgical wounds and pregnancy in the future. The low-temperature cold knife for the laparoscopic surgery is composed of a knife rod telescoping guide system, an automatic resetting and rebounding system, a controlling and grading system, a radial rotation preventing system, a blood clearing and recovering system and a blade low-temperature cooling system. By adjusting a telescopic knife rod 18, a surgical blade 10 can be arranged at an assembly and disassembly position or a work position or a protection position and is hidden when entering the abdominal cavity, and accidental injury is prevented.

The invention relates to the technical field of traditional Chinese medicine compositions, in particular to a traditional Chinese medicine composition for treating diabetes and a preparation method thereof. The traditional Chinese medicine composition is prepared from the following raw materials of rhizoma anemarrhenae, ginseng radix et rhizoma, poria cocos, radix ophiopogonis, rhizoma coptidis, bighead atractylodes rhizome, herba plantaginis, fructus schisandrae chinensis, flos carthami, rhizoma polygonati odorati and liquorice root. The traditional Chinese medicine composition has the advantages that the sovereign, ministerial, adjuvant and envoy drugs are complete, the compounding is strict, the complementary effect is realized, and the functions of preventing and treating heat injury Qi-Yin, activating blood circulation and removing blood stasis, strengthening and protecting the spleen and stomach, supporting the healthy energy, nourishing Yin and moistening dryness, nourishing Yinand producing body fluid, and reducing blood glucose are realized; the metabolic disorders of saccharide, blood pressure, fat and protein can be comprehensively regulated; the traditional Chinese medicine composition is suitable for stabilizing the condition of type-II diabetes for a long time, and can be used for effectively treating the diabetes; the traditional Chinese medicine composition canbe added into water to prepare a foot bath liquid, so as to effectively prevent and control the diabetic foot.

The invention provides a cooling analgesia device. The cooling analgesia device comprises a transparent plastic container which is composed of a container body, a container cover, a handle and a waterproof plug, the container body is connected with the container cover in a threaded mode, the handle is located on one side of the container body, the handle is internally provided with two cooling fluid channels used for being directly communicated with a tail-end solution pool, the waterproof plug is matched with the cooling fluid channels for use and used for plugging the cooling fluid channels, the tail-end solution pool is a concentric annular space in the container body, and the space is used for storing cooling fluid or ice blocks. The cooling analgesia device can further comprise a cooling circulatory system used for reducing and relieving heat injuries in laser treatment of the department of stomatology.

The invention discloses a wound dressing capable of rapidly absorbing heat, which comprises the following main components: a mixed solution of polyethylene glycol methyl ether methacrylate and 2-methyl-2-acrylic acid-2-(2-methoxyethoxy) ethyl ester, polyethylene glycol dimethyl acrylate, sodium dodecyl sulfate, potassium persulfate, hydroxylated carbon nanotubes and deionized water. The wound dressing capable of rapidly absorbing heat is prepared by the following method: ultrasonically dispersing a certain amount of hydroxylated carbon nanotubes in an aqueous solution of polyethylene glycol methyl ether methacrylate and 2-methyl-2-acrylic acid-2-(2-methoxyethoxy) ethyl ester, and performing crosslinking by using a small amount of cross-linking agent polyethylene glycol dimethacrylate; and adopting an in-situ free radical polymerization'one-pot method ' to obtain the wound dressing. The wound dressing capable of rapidly absorbing heat has the functions of rapidly absorbing heat, relieving heat injury and improving treatment comfort, and has practical application value in burn and scald treatment, laser treatment or emergency treatment.

The invention provides laser equipment for orthopedic surgery and a using method, and relates to the technical field of medical instruments. The technical problems that the laser equipment for orthopedic surgery is tedious in steps, poor in heat dissipation effect, difficult in heat injury inhibition and poor in cleaning effect are solved. The laser equipment for the orthopedic surgery comprises a combined action unit, a laser unit, an ultrasonic and distance measuring unit, a fixing nail implanting unit, a negative pressure air exhaust and dust removal unit, a cold air unit and three sets of telescopic mechanisms. The using method comprises the following steps that the equipment is aligned with a to-be-drilled part; the equipment is basically arranged and fixed; parameters of the laser are set; laser drilling is carried out; ultrasonic and distance measurement and negative pressure cleaning treatment are carried out; and fixing nails are implanted. Air exhaust and dust removal are carried out on the drilling part in a negative pressure suction mode, the purification effect is good, drilling and cooling are carried out simultaneously through the cold air unit and laser, the cooling effect is good, a high-power laser can be used, and the application range is wider.

The invention provides a composition for treating toxic heat injury and yin qi type lupus erythematosus and relates to the field of traditional Chinese medicines. The composition comprises the following components in parts by weight: 12-18 parts of codonopsis pilosula, 25-35 parts of astragalus, 25-35 parts of adenophora, 12-18 parts of dendrobium, 12-18 parts of red sage root, 12-18 parts of suberect spatholobus stem, 12-18 parts of largeleaf gentian root, 8-12 parts of earthworm, 10-15 parts of angelica sinensis, 10-15 parts of garter snake, 8-12 parts of white peony root, 8-12 parts of grass and 8-12 parts of scorpion. The composition for treating the toxic heat injury and yin qi type lupus erythematosus, provided by the invention, is reasonable in compatibility, remarkable in treatment effect of systemic lupus erythematosus and free of toxic or side effect; the composition has the efficacies of nourishing yin, benefiting qi and activating blood circulation to remove meridian obstruction and has the advantage that the cure rate can be up to more than 80%.

The invention discloses a medical thermosensitive detecting method and device which is used for solving the problem about heat injury to healthy tissues in the tumor oblation operation. The medical thermosensitive detecting device comprises a thermosensitive puncture probe (1), a converter (3) and a server (5). The thermosensitive puncture probe (1) is used for detecting temperature of a to-be-detected tissue contacting with the thermosensitive puncture probe when a radio frequency puncture needle transmits radio frequency signals and generating corresponding temperature signals after detecting the temperature of the tissue to be detected, the converter (3) is connected with the thermosensitive puncture probe (1) through a first connecting line (2) and used for converting the temperature signals into thermoelectromotive force signals, and the server (5) is connected with the converter (3) through a second connecting line (4) and used for receiving the thermoelectromotive force signals via the second connecting line, calculating the temperature via analog-digital conversion of the thermoelectromotive force signals and displaying the temperature. The medical thermosensitive detecting device is used with the radio frequency puncture needle, puncture times can be reduced, pain of patient is alleviated, requirements for experience of operators are lowered, and heat injury to the healthy tissues in the tumor oblation operation is effectively prevented.

At present, all materials for producing bathtub faucets adopt copper pressing and casting all over the world, and the production technology is complicated, high in labor intensity, and out-dated for several decades. Due to the above reasons, the bath faucet provided by the invention is the historical technological innovation, and has five advantages: (1) a shell is made of stainless steel plates,aluminum plates or copper plates and the like with a punching and drawing technology; (2) valves and a valve core of a hot water faucet adopt strong magnetic valve chips technically, and a water inletand a water outlet of the two valves are attracted with each other tightly, and are airtight without leaking water; (3) the historical innovation is implemented technologically, and the production implemented through cooper pressing and casting for a long time is changed to manufacturing through punching and drawing equipment; (4) the function of visual bath water temperature is added, and the temperature of output warm water can be adjusted according to the visible temperature frequently used by the elderly and children; and (5) the temperature of the whole bath faucet shell is the temperature shown on a thermometer, so that the skin of the elderly and children can not be injured even though the elderly and children touch the water.