742 results about "Silicone tube" patented technology

A multicontact electrode array suitable for implantation in living tissue includes a distal end having multiple spaced-apart ring or band electrode contacts carried on a flexible tube carrier. Each ring electrode contact is laser welded to a respective wire tip that has a multi-helix orientation on the inside of a separation tube. The center of the multi-helix wire defines a lumen wherein a positioning stylet, or other suitable positioning tool, may be removably inserted when the electrode array is implanted. The method of making the multicontact electrode array includes, as an initial step, winding lead wires around a suitable mandrel so as to form a multi-helix configuration. (Alternatively, the wire may be purchased in a multiwire pre-wound configuration that defines a lumen, in which case the mandrel is slipped inside the lumen.) Then, at a distal end of the electrode, each wire within the multi-helix winding is unwound so as to protrude out from the winding. Next, a non-conductive separation silicone tube which has a longitudinal slit along its length, is placed around the wound wires. Ring contacts are then placed over the silicone tube at a distal end of the electrode array and spaced apart as desired. These ring contacts also have a slit therein through which the protruding wire ends may exit. The silicone tube is used as a spacer to centrally locate the multi-helix wound wires with the ring contacts. A compressive die may be used to hold the pre-assembled ring contact, multi-helix wire, separation tube in their desired positions, and may be used to close the opening or slit of each ring contact through which the wire tips protrude. The wire tips are then individually trimmed to a suitable distance. A laser welding process may then be used to bond each lead wire to a corresponding ring contact. Finally, the preassembled electrode array is placed in a molding die, and a polymer filler is injected into the internal gaps of the electrode array components.

Placement of a silicone tube in the cerebral aqueduct and the transmission of red light through it, resulting in the irradiation and consequent biostimulation of the adjacent periaqueductal gray, thereby causing the release of endorphins therefrom and pain relief.

The invention relates to an apparatus for a layered undisturbed soil seepage experiment. The apparatus comprises a pedestal, a seepage column connected to the pedestal, an upper end cover on the seepage column, a flowmeter, a silicone tube connected with the flowmeter, an overflow tank connected with the flowmeter through the silicone tube and a multi-parameter analyzer connected with a sensor onthe seepage column through a signal line. The invention can be used for determining penetration coefficient and dispersion coefficient in undisturbed soil in production, researching on influence of soil amendment on soil mechanical properties, researching on influences of leaching of different solutions on soil structure and influence of soil midstream on unsaturated zone soil and underground water, can also be applied to parameter determination in the relevant field of solute migration and can be used as a teaching apparatus.

The invention discloses a liquid metal electric wire and a manufacturing method therefor. The liquid metal electric wire comprises an elastic silicone tube (1); conductive terminals (2) are fixed in tube orifices in the two ends of the elastic silicone tube (1); the tubes are filled with liquid conductive metal liquid (3); the liquid conductive metal liquid (3) is in contact with the conductive terminals (2) extending into the inner end of the tube; and the liquid conductive metal liquid (3) enables the conductive terminals (2) at the two ends of the elastic silicone tube (1) to be conductive. The liquid metal electric wire is simple in structure; the liquid metal electric wire can be stretched on the basis of the inherent length; the stretched liquid metal electric wire is retractable due to the inherent attribute of the elastic silica gel, so that the length of the liquid metal electric wire can be adjustable; and therefore, the liquid metal electric wire is applicable to various domestic appliances, industrial appliances and the like.

The invention belongs to the field of an upper limb exoskeleton rehabilitation robot, and discloses a flexible exoskeleton glove system for hand rehabilitation training. The flexible exoskeleton glove system comprises a finger data collecting glove, a decision driving module and a flexible exoskeleton glove; the finger data collecting glove comprises a first glove main body, a flexible sensor and a wireless sending module; the decision driving module comprises a decision module and a driving module; the decision module comprises a microcontroller and a wireless receiving module connected with the microcontroller; the driving module comprises a module supporting bracket, an air pump and an electrical proportional valve installed on the module supporting bracket commonly; the flexible exoskeleton glove comprises a second glove main body and a flexible bending driver; the flexible bending driver comprises a Kevlar fiber wire, a silicone tube, a glass fiber cloth and a pneumatic sealing joint. In the invention, fingers can be independently moved or coordinately moved, thus the hand rehabilitation training effect and wearing comfort of patients are improved.

The present invention is related to a pouring device for a container for the dosing of liquid, said pouring device comprising: a) a housing; b) a passage for the liquid within the housing; c) an electrical operated opening/closing mechanism for opening or closing the passage in order to dosing of a predetermined or registerable amount of liquid, characterized in that the passage comprising a silicone tube, and the opening/closing mechanism is to block the silicone tube by squeezing the silicone tube in order to close the passage. The silicone tube inside the spout is the only path for the liquid to go through from the bottle, meanwhile the rest components are protected from liquid. This guaranties a quick and controlled flow of the liquid and avoids any air bubbles to influence the pour precision.

The invention discloses a polishing device for eliminating the coining effect of a lightweight reflecting mirror, which is suitable for a polishing device for machining a reflecting mirror with a large aperture, high lightweight and a high radius-thickness ratio at high accuracy and belongs to the field of machining of optical surfaces. The device consists of a sealing cylinder, a top cover, a support seat, an arc-shaped fixture, an elastic seal ring, a minitype air pump, a precise stop valve, a precise decompression valve, a four-way body and a silicone tube. In the polishing process, high-accuracy polishing is caused by discontinuous elastic deformation of a mirror surface corresponding to an inner cavity hole of the lightweight reflecting mirror and a rib-bonded mirror surface due to impressed pressure, and then the coining effect that the surface is wave-shaped has become a technical barrier of high-accuracy machining of the lightweight structural reflecting mirror. By the polishing device disclosed by the invention, the reflecting mirror is soaked in a seal cavity which consists of the sealing cylinder, the top cover and the elastic seal ring, and the inner cavity of the sealcavity is inflated. The surface of the lightweight reflecting mirror is balanced under the action of gravity, grinding head pressure and reverse inflation pressure, the coining effect is eliminated, and the reflecting mirror with the large aperture and the high lightweight can be machined at the high accuracy.

The invention discloses a three-freedom-degree smooth driver with a hybrid power source. The three-freedom-degree smooth driver is composed of three manual pneumatic muscles arranged in parallel, an end cover and a central fixing disc. Each manual pneumatic muscle is composed of a silicone tube internally with a spring, wherein the silicone tube is covered with a nylon woven sleeve. The two ends of each silicon tube are provided with ends stretching into the silicone tube, wherein an inflation and deflation connector is arranged at one end. Each silicon tube is further internally provided with a steel wire and a limiting piece for limiting the steel wire at the central axis of a line of the silicon tube, wherein one end of the steel wire is fixedly connected to the corresponding end, and the other end of the steel wire penetrates out of the corresponding manual pneumatic muscle through the other end. According to the three-freedom-degree smooth driver, the rigidity of the manual pneumatic muscles at the low-air-pressure condition is improved, the manual pneumatic muscles are easier to control in the motion process and can be automatically recovered to the initial linear state after air pressure is removed, and the various engineering requirements for high precision, high load bearing, large stroke, quick response and the like can be completely met.

The invention provides a flexible mechanical arm mechanism driven by shape memory alloy (SMA) wires and a flexible mechanical arm thereof, and the mechanism and the mechanical arm belong to the technical field of robots. The flexible mechanical arm mechanism comprises an inner layered mandril (1), an outer layered flexible sleeve (2) and a lead bundle (3) which is used for electrically heating the SMA wires, wherein the inner layered mandril (1) comprises a base (105), a top end fixing piece (103), N inner spacers (101), N+1 inner silicone tubes (102) and three SMA wires; the outer layered flexible sleeve (2) comprises a bottom end connecting seat (206), a top end connecting seat (203), M outer spacers (201), M+1 outer silicone tubes (204) and six SMA wires; the inner layered mandril and the outer layered flexible sleeve are connected through a bearing; and the flexible bending movement and the contraction movement of the inner layered mandril are transmitted onto the outer layered flexible sleeve through the bearing.

The invention belongs to the technical field of chemical measurement methods and in particular relates to a method for measuring acrylic acid in air in working spaces by using ion chromatography. The rapid, sensitive, accurate, environment-friendly and low-cost method for measuring acrylic acid in air in working spaces by using ion chromatography is constructed by collecting the acrylic acid through a silicone tube and by taking environment-friendly pollution-free sodium carbonate/sodium bicarbonate as desorption solution and chromatographic mobile phase. A novel feasible way is provided for rapidly and accurately measuring acrylic acid in air in the working spaces, and the application of the ion chromatography in occupational health inspection is widened.

The invention relates to a rice field-upland field rotation rice soil gas in-situ acquisition system and an acquisition method thereof, which belongs to the field of the gas acquisition technology and is specially used for the in-situ acquisition of the soil gas in the rice soil section plane under the condition of the rice field-upland field rotation. The invention comprises that: PVC pipes with the 40 mm inside diameter are chosen; total eight pores are uniformly distributed on the exchange interface of the pipe wall at the bottom of every gas cavity; all gas cavities are separated with PVC sheets which are perforated and allow a nylon tube gathering gas to pass through. A nylon slim tube passes through the upper part of the PVC sheets and is connected to a triple valve with a silicone tube. The acquisition method comprises detection of air tightness, installation, pre-equilibration and the system keeps airtight state; when in observation, a syringe directly gathers the needed voluminal gas. The invention can be used for gathering soil gas in the inundation state or in the drainage state, can gather in-situ gas with different section plane depth on the same locus, has easy operation and easily available materials, can be wildly applied to the rice field and wetland soil gas acquisition, and overcomes various kinds of defects in the prior art.

The invention relates to a medical minimally invasive operation instrument, in particular to a semicircular working sleeve for a single-hole laparoscope. The semicircular working sleeve comprises a handle and a sheath connected with the handle, wherein the end face of the handle is provided with a plurality of channels, an air filling valve and an air inlet valve; the air filling valve is communicated with an air path of an inflatable air bag arranged on the concave surface at the inner side of the sheath; and the air inlet valve is connected with a carbon dioxide gas source. The semicircular working sleeve is characterized in that the handle, the sheath and the inflatable air bag form a semicircular shape. The invention has the advantages that the semicircular design of the end face of the handle increases the area and the space position for placing the plurality of channels, and a plurality of instruments can be put in; the semicircular sheath has small injuries to the abdominal wall during entering the abdominal cavity through the abdominal wall and is beneficial to the healing of an incision, and an instrument activity space is obviously increased; the port of a silicone tube is covered by an elastic soft material so as to ensure that the semicircular working sleeve for a single-hole laparoscope is easy to enter the incision of the abdominal cavity and have small resistance; and the end face of the handle forms a fusiform design. The invention can also be applied to operations with larger operation difficulties, such as rear abdominal cavity operations, front abdominal cavity operations, and the like.

The invention relates to the insulation of a silicone tube styrofoam and methods of preparation. The product formulation and preparation processes as follows: 1.make the Weight of the vinyl methyl silicone rubber and other groups in the seven to input rubber into mixing machine; 2. Warm up to 60 -180 degree C, mixing 2 h, 20 min vacuum, cooling 12 h, 3. firstly, mixing and cooling the material to cool down to 100-120 degree C, inputting it into the chain, then making the Weight of blowing agents into three groups to opened machines for practising;4. take opened mixed materials into uniform after slicing machine slices 5. after the biopsy material inputs extruder, extrusion molding, 6. Extrusion molding materials will be used for imported electric rotating conveyor belt Hot Air Road, sulfide foamed under the 200 -250 degree C;7. package products after the cooling of curing foam. The invention of the products are low-density, thermal conductivity on the insulation effect, and aging resistance of high tensile strength, flexibility performance, and apply a wide range of temperatures, good of weathering, simple preparation procedures, the efficiency of operation, and friend environment features .

The invention belongs to the field of test instruments for medical flexible materials, and provides a device for simulation testing of the compliance of artificial blood vessels and a method thereof. The device comprises a temperature control heating device, an impulse pressure waveform generating device for fully-true simulated human body arteries, a clamping device for artificial blood vessel samples, a laser caliper, a flow-guiding silicone tube, a conducting wire, a computer provided with software for processing and converting signals, a display and a printer. With the device and the testing method thereof, the simulation testing for the compliance of the artificial blood vessels used at different parts of human body can be performed, which creates a good condition for clinical application in the medical field.

The invention discloses an inner-fluorin and outer-silicon tube with fire resistance, high and low temperature resistance and oil resistance and a preparation method thereof. The inner-fluorin and outer-silicon tube sequentially comprises an inner rubber layer, a middle rubber layer, a framework layer and an outer rubber layer from inside to outside. The problems of low high and low temperature resistance of a traditional ethylene acrylate rubber tube (AEM) and relatively low oil resistance of a silicone tube (VMQ) are solved through the inner-fluorin and outer-silicon tube. Through the improvement of a material and a processing process, the inner-fluorin and outer-silicon tube has fire resistance as well as excellent high and low temperature resistance and oil resistance.

The invention provides a sperm screening and in vitro fertilization bionic device based on micro fluidic technology. The sperm screening and in vitro fertilization bionic device based on micro fluidic technology comprises a bionic device main body; the bionic device main body is composed of a glass sheet layer, a silica gel pipeline layer, and a polydimethylsiloxane layer; a center cell is arranged at the middle part of the silica gel pipeline layer; an inlet cell, a first outlet cell, and a second outlet cell are arranged outside the center cell; the center cell is communicated with the inlet cell, the first outlet cell, and the second outlet cell via a first pipeline, a second pipeline, and a third pipeline respectively; the first pipeline is provided with a first sample adding port; the second pipeline is provided with a second sample adding port; and the third pipeline is provided with a third sample adding port. The sperm screening and in vitro fertilization bionic device is used for stimulating complete natural impregnation process, unfavorable influences of operation on gametes and embryos are avoided, and polyspermy is avoided; high quality embryos at stimulated natural impregnation states can be obtained, in vitro fertilization success rate is increased greatly, the potential causes of sterility can be identified, and a direction is provided for clinical treatment.

A solvent-free addition type liquid silicone resin, characterized in that, in parts by weight, it comprises the following components: 100-130 parts of vinyl silicone oil with a weight ratio of ethylene content of 0.3% and a viscosity of 10,000-50,000 cs; a particle size of 10 ~20nm, 38-58 parts of fumed silica with a specific surface area of ​​160-300m2/g; the treating agent includes 5-10 parts of hexamethylsilazane, 0.5-2 parts of vinyltriethoxysilane, dimethyl Diethoxysilane 0.5-2 parts; and water 2-5 parts; release agent stearic acid 0.06-0.09 parts; inhibitor methyl butynol 0.001-0.003 parts, cross-linking agent hydrogen-containing silicone oil 0.6-0.8 parts; prepared by the addition method. The invention solves the problems that the existing liquid silicone resin used for the surface coating of glass fiber sleeve, silicone tube, glass fiber cloth and other materials is not good enough in performance and storage is not stable enough.

The invention relates to a disposable ligation device for anorectal hemorrhoids. Particularly, multiple hemorrhoids can be ligated, and replaceable rotatable ligation assemblies can also be selected for the hemorrhoids different in degree, internal rectal prolapse and other anorectal diseases to achieve the best treatment effect. The device comprises a rotatable ligation assembly, a ligation assembly connection fixing device, a negative pressure tube assembly, a trigger and a shell; the rotatable ligation assembly comprises an elastic thread loop, a push tube, a suction tube, a long tube, a rotary knob and an elastic thread component; the shell is composed of a left shell body and a right shell body, the front portions in the left shell body and the right shell body are internally provided with locking hoop guide grooves and spring positioning baffles, and the middles in the left shell body and the right shell body are arranged in a connection fixing device mounting groove; the ligation assembly connection fixing device comprises a trigger tube, a locking hoop, a spring, a spring base, a catch button, a catch button connector, a push button and a seal ring; the negative pressure tube assembly comprises a two-way tube, a three-way tube, an air tube connector, a silicone tube and a negative switch.

The invention provides a method for making an individualized transparent silica gel model based on soluble materials. The individualized transparent silica gel model is a transparent silica gel modelbased on human organs. A soluble model cavity is made through model cleaning and a 3D printing technology oriented model repairing process based on medical images. The individualized silica gel modelof the invention improves the making process requiring multiple mold reversals in traditional cavity model making. An external model of a target organ can be made at the real size, and the clinical application value of the model is significantly improved. A transparent cardio-cerebral artery silicone tube made by silica gel blending can be used to conduct new medical-engineering applications withhigher practical application value in clinical training, medical education and many other aspects. Therefore, the invention provides a new set of transparent external model making scheme for blood vessels and other lumen tissues for clinic by combining medical image processing, human blood vessel model repairing, 3D printing, silica gel model baking and other interdisciplinary disciplines.

The invention relates to a thermal management system for a power battery of a pure electric vehicle. The thermal management system comprises a battery module, a radiator, a magnetic pump, an external circulating pipeline, a heat exchange element, a heater, a temperature sensor and a central controller, wherein the heat exchange element is a heat-conducting silicone tube tape of which an inner cavity is filled with a cooling liquid; the heat-conducting silicone tube tape is attached to a single battery; the external circulating pipeline is sequentially connected with the heater and a decompression valve in parallel through a two-position three-way electromagnetic valve; the external circulating pipeline between the heater and the decompression valve is sequentially connected with a cooling liquid filter and the magnetic pump in series; the external circulating pipeline is communicated with the heat-conducting silicone tube tape through a composite variable-diameter joint; and the heat-conducting silicone tube tape is also provided with an electromagnetic directional valve. The thermal management system is simple in structure, novel in design, high in heat exchange efficiency, good in heat dissipation effect, safe and reliable to use, relatively economical and practical and good in sealing effect; and the lifetime of the power battery is further prolonged; and the charge-discharge efficiency of the power battery is further improved.

The invention provides a self-circulation humidifier. The self-circulation humidifier comprises a heating box, a steam exhausting pipe, a water storage box and a box cover. The water storage box comprises a water storage box body and an installing cavity, the heating box is arranged inside the installing cavity, an exhausting pipe penetrating hole, a water storage box water injecting opening and a condensate inlet are formed in the box cover, a water pump is arranged inside the water storage box body, an overflow pipe is arranged on one side of the water storage box body, a heating box water discharging pipe connector is arranged on the overflow pipe, an electrical heater, a heating box water inlet pipe, a steam exhausting opening and a heating box water discharging opening are formed in the heating box, a water pump water injecting opening and a pressure relief opening are formed in the heating box water inlet pipe, a water pump water outlet is connected with the water pump water injecting opening, the pressure relief opening faces an inner cavity of the water storage box body, the heating box water discharging opening is connected with the heating box water discharging pipe connector, the steam exhausting pipe is connected with the steam exhausting opening, and the condensate inlet is connected with a water pan of an air conditioner. Through the self-circulation humidifier, the number and occupied area of applied silicone tubes are reduced, and sealing reliability is improved.