35 results about "Infusion technique" patented technology

The invention relates to an epoxy resin composition, a preparation method of the epoxy resin composition, as well as a composite material prepared by using the composition and used for a wind power blade and a preparation method of the composite material. The epoxy resin composition comprises epoxy resin, a diluting agent, polyether amine and alicyclic amine; by virtue of the synergistic effect of all the components, the composition has low viscosity, low exothermic peak time and long exothermic peak time and is applicable to a vacuum assisted resin infusion technique; a wind power blade composite material prepared from the composition and a carbon fiber reinforced material has relatively light weight and relatively high mechanical property, is applicable to large-scale production of the wind power blade and has bright application prospect and high market value.

The invention discloses a bamboo-made composite material wind power vane and a vacuum infusion technique. According to the technique scheme provided by the invention, the bamboo-made composite material wind power vane comprises a vane body which is composed of a vane-shaped upper vane and lower vane, wherein the vane root is arranged at the root part of the vane body, the top end of the vane body is a vane tip, the upper and the lower vanes are adhered into an integral by mold adhesive bar and makes the periphery form a cavity, a bamboo cordwood is filled in the vane root and/or upper vane and/or lower vane, a vane root premolding part is arranged on the bottom end corner of the vane outer-boundary of the vane body. The vane is prepared by each procedure such as preparing equipment material, preparing mould, paving each kind of material, laying out tube, infusing, doing subsequent process and the like. The vane is low in preparation cost, short in preparation period, which is beneficial to protect environment, easy to control the preparation procedure and obtain raw materials.

The invention provides an intelligent infusion system which aims at overcoming the defects of an existing infusion technology. The intelligent infusion system is characterized by being composed of a drug solution storage device, a catheter, an infusion device, an infusion valve, a liquid level sensor, a controller and an alarm device. The working principle comprises the steps of based on liquid level information provided by the liquid level sensor, carrying out intelligent control on the infusion device and the infusion valve through the controller, achieving control over infusion time, flow speed and flow-path switching so as to achieve the fact that the infusion system allows a drug solution to be automatically input into veins of a patient to achieve treatment effects, and providing an alarm service before infusion is completed so as to remind a medical worker of completeness of the infusion. According to the intelligent infusion system, intelligent control of the whole infusion process can be achieved, the patient or the medical worker does not need to conduct manual monitoring in real time in the whole infusion process, working efficiency is greatly improved, and the intelligent infusion system has important application value and significance in the field of medical diagnosis.

An adhesive adapted to enable spray delivery and seamless polymerization during epoxy resin vacuum infusion techniques.

The present invention relates to a method of manufacturing a polymer composite member by a resin infusion technique. The method comprises providing a mould cavity (5) wherein a reinforcement material (4) is arranged. The mould cavity has at least one first resin inlet for a first resin and at least one second resin inlet (6b) for a second resin, which first and second resins have different mechanical properties after moulding. The method further comprises concurrently leading the first resin into a first region (5a) of the mould cavity via the first inlet and leading the second resin into a second region (5b) of the mould cavity via the second inlet, and transferring the resins into the reinforcement material so that the resins at least partly merge in a third region of the mould cavity. For this application, the first resin is typically used for a root end of the wind turbine blade or part of wind turbine blade.

The invention relates to the technical field of infusion, and concretely relates to an application type subcutaneous indwelling needle, which at least comprises an indwelling mechanism, the indwellingmechanism at least comprises an indwelling seat; wherein an infusion connector is arranged at the upper end of the indwelling seat, an indwelling steel needle is arranged in the center of an infusionconnector, a bonding part is arranged on the lower end face of the indwelling seat, an indwelling soft needle protruding out of the bonding part is further arranged at the lower end of the indwellingseat, the indwelling soft needle and the indwelling steel needle are coaxially arranged, and a one-way liquid flow device is arranged between the indwelling steel needle and the indwelling soft needle. In the structure, the indwelling steel needle and the indwelling soft needle are simultaneously arranged in the indwelling mechanism; wherein part of the indwelling soft needle is located under theskin, and the indwelling steel needle is located in the infusion connector, so that the steel needle of an injector does not need to be used any more during injection, only the connecting end of theinjector without a needle head or an insulin infusion pump needs to be connected with the infusion connector, and the technical advantages of being convenient to use and wide in application range areachieved.

The invention discloses an application of an endometrium stem cell in preparation of a medicine for curing liver fibrosis, wherein the endometrium stem cell is a fibroblast-like cell growing by adhering to a wall, expresses CD29, CD44, CD73 and Cd90, and does not express CD34, CD45, CD117 and HLA-DR. In the application, the endometrium stem cell is convenient to acquire, the preparation of an endometrium stem cell is simple, the infusion technique is simple and convenient, and is easy to operate, the effects of improving the liver function and reducing liver fibrosis are remarkable, and the application is of great clinical significance and has a wide application prospect.

The invention discloses an infusion safety control device. The infusion safety control device comprises an infusion time control device, an infusion alarm device, and an infusion heating device. The invention aims at providing an infusion safety control device which is novel and reasonable in structure, convenient and fast to use, safe and reliable, and capable of effectively preventing infusion medical accidents from occurring and reducing nursing work difficulty. The infusion safety control device has important clinical significance. A time-controlled infusion technology is adopted to conduct settings for five minutes before infusion liquids are all dropped, so that a nurse can timely go to a ward to draw back a needle. A time control circuit and a display circuit in the infusion time control device are connected with the infusion alarm device through a change over switch, and when power of the time control circuit and the display circuit is cut off, automatic alarm is triggered, and a sound-light alarm effect is achieved. Negative effects that a small amount of air enters blood vessels, blood returns and cruor blocks a needle head due to the fact that the needle is not drawn back timely are avoided. The technical scheme that the infusion heating device is arranged aims at avoiding the phenomenon that a patient feels uncomfortable due to the infusion at a low temperature. An infusion temperature which meets human body blood circulation is reached. The infusion safety control device is widely used in the infusion clinical applications in hospitals and nursing homes.

The invention belongs to the technical field of medical devices, and in particular relates to an integrated training equipment for intraosseous infusion, upper limb venous infusion and blood thoracic drainage. There is a rubber plug inside, a conical block is provided under the rubber plug, and a plurality of connecting rods are arranged on the periphery of the lower end surface of the rubber plug. , a pressure sensor is set in the circular groove, a rubber pad is set on the tapered block above the pressure sensor, a controller and a battery are also set on the breast plate, the pressure sensor is electrically connected to the signal input end of the controller, and the power grid group is connected to the signal input of the controller The terminals are electrically connected, the controller is electrically connected to the storage battery, and the output end of the controller is electrically connected to a speaker. Its purpose is to provide simulated training for intraosseous infusion techniques, upper extremity venous infusion techniques and hemothoracic closed drainage.

The invention relates to the technical field of intravenous infusion, and discloses an alarm device for preventing blood return during infusion. A first clamping support elastic sheet (1) and a secondclamping support elastic sheet (2) are arranged to form an included angle with narrow bottom and wide top, the bottom ends of the two are fixed on a positioning mechanism (3), and the top ends are respectively fixed on a first clamping conduction mechanism (4) and a second clamping conduction mechanism (5) symmetrically disposed. First magnets (401) of the same polarity are fixed at two ends of the first clamping conduction mechanism, and second magnets (501) of the polarity different from that of the first magnets are fixed at two ends of the second clamping conduction mechanism. An alarm device (6) is disposed on the first clamping conduction mechanism or the second clamping conduction mechanism, and the alarm is connected to internal circuits of the first clamping conduction mechanismand the second clamping conduction mechanism through wires. Compared with the prior art, the alarm device can automatically remind a doctor and a patient that the injection is about to be infused, avoid the phenomenon of blood return and improve the infusion safety.

The invention discloses a needle head and a plant infusion device containing the same, and relates to the technical field of plant infusion. The needle head comprises a needle tube, a needle core anda stirring part, wherein a liquid inlet and a liquid outlet are arranged on the needle tube; the needle core is detachably matched with the needle tube; one end of the needle core is of a conical shape; the stirring part comprises a sealing block which is rotatably connected with a rotating rod; a plurality of blades are distributed on the rotating rod; fan blades are fixedly connected with and arranged at one end, close to the sealing block, of the rotating rod; and the sealing block is detachably connected with one end of the needle tube. According to the invention, when the needle head is in use, a pistol drill does not need to be used for drilling firstly, and sawdust does not need to be removed, so operation convenience is improved; meanwhile, the blades rotate in the needle tube to conduct stirring, so the probability that resin blocks the needle head can be reduced.

The invention discloses a tree infusion auxiliary device, and relates to the technical field of plant infusion. The tree infusion auxiliary device comprises a first box body, a liquid outlet tube, aninfusion tube, a flowmeter, a needle head, a pressure increasing and decreasing cavity, a piston, a driving part and a controller, wherein the liquid outlet tube is fixedly connected to a lower end ofthe first box body and is communicated with the first box body; the flow meter is connected to the liquid outlet tube in series; one end of the infusion tube is communicated with the liquid outlet tube, and the other end is communicated with the needle head; the pressure increasing and decreasing cavity is communicated with an upper end of the first box body; the piston is movably connected intothe pressure increasing and decreasing cavity; the driving part is in power connection with the piston and used for driving the piston to reciprocate; and the flow meter and the driving part are electrically connected with the controller. The flow is kept within a certain constant value, and the stability of the infusion amount is improved.

This invention is auto close medical use inject infusion pipe, it belongs to medical use inject infusion technique fields. The pipe is the amelioration of existing mofei burette, one hole is opened on up part of the burette, a peltry with inside ball storage piston is covered on it. the structure of the pipe is simple and is easy to realize, and it is flexible and its effect is good. It is propitious to make up inject infusion with medical bottle or bag and ventiduct to inject liquor in the bottle or bag into patient.

The invention discloses an adjustable infusion device with medicine liquid warming function and a method thereof, and belongs to the technical field of animal infusion. The device of the invention comprises a cylinder, a liquid storage pipe is fixedly connected to the interior of the cylinder, one end of the liquid storage pipe penetrates through the cylinder and is fixedly connected with a puncturing head, the other end of the liquid storage pipe penetrates through the cylinder and is fixedly connected with a drainage pipe, a temperature sensor is fixedly connected to the surface of the liquid storage pipe, and an electric heating plate is fixedly connected to the interior of the cylinder; the upper surface of the cylinder is fixedly connected with a limiting frame; By setting supportinglegs, a movable plate, bolts and screwed holes, the specific height of the device can be freely adjusted according to different types of animals to be infused, so that the device can be used for infusion work of various animals with different sizes, and the infusion device does not need to be frequently replaced to infuse different animals; therefore, the practicability of the device is improved,resources are saved, and the purchasing cost of livestock farms is reduced.

The invention discloses a tree infusion device capable of automatically applying a protective agent, and relates to the technical field of plant infusion. The tree infusion device includes a box, a first needle tubing, a second needle tubing, a first liquid level sensor, a first pipeline, a first solenoid valve, a second pipeline, a second solenoid valve, a driving part and a controller, wherein the box is provided with a first liquid storage area and a second liquid storage area; the first liquid storage area communicates with the first needle tubing through the first pipeline; the second liquid storage area communicates with the second needle tubing through the second pipeline; the second needle tubing is slidably connected in the first needle tubing; the first solenoid valve is connected in series to the first pipeline; the second solenoid valve is connected in series to the second pipeline; the first liquid level sensor is arranged at the lower end of the first liquid storage area;and the driving part is connected with the first needle tubing and the second needle tubing in a power mode. The completion situation of the infusion of a nutrient solution can be automatically detected, when the infusion is completed, the first needle tubing can be automatically pulled out in time, the second needle tubing is inserted, and the protective agent is infused into a hole to protect the hole.

The invention belongs to the technical field of infusion, particularly relates to an infusion device for neurosurgery nursing, and provides the following scheme for solving the problems that the existing height cannot be adjusted and infusion is not stable. The infusion device comprises a base, wherein a vertical rod is fixedly mounted at the top of the base, the vertical rod is of a hollow structure, and a first through hole is formed in the top of one side of the vertical rod; a first rotating shaft is rotatably mounted on the first through hole, a first rotating wheel is fixedly connected to the first rotating shaft in a sleeving manner, a plurality of limiting blocks are annularly, evenly and fixedly mounted on the periphery of the first rotating wheel, a support is fixedly mounted onthe inner wall of the lower portion of the first through hole in the side, close to the first through hole, of the vertical rod, and one end of a rotating rod is rotatably mounted on the support. Theinfusion rod is divided into the vertical rod and a sleeve rod, then the infusion rod can be lifted through treading, and a patient or a nurse can easily ascend and descend the infusion rod; and a fixing ring is arranged at the top of the sleeve rod, so that the infusion stability is fixed to a great extent.

A multilayer structure comprising a plurality of layers superimposed one on top of the other, each of which is made of one or more elements of wood material, wherein at least one of said elements of wood material is provided with at least a cavity into which a filling material is inserted using the vacuum infusion technique to glue each of said layers with the adjacent layer.