31results about How to "Self-expanding" patented technology

The invention relates to an underground controllable self-expansion casing patching pipe which comprises a patching pipe body and a controllable underground tool release device. The patching pipe body is composed of a rubber inner container, a memory alloy ring and a leaking stoppage rubber barrel. The inner surface of the leaking stoppage rubber barrel and the outer surface of the rubber inner container are adhesively connected through a temperature resistance adhesive. The controllable underground tool release device at least comprises a temperature controller, a cable, a heat pipe, a heating winding wire, a stainless steel protective pipe, a thermocouple, a centering barrel and a conical limiting barrel. The stainless steel protective pipe is located inside the centering barrel. The heat pipe is located inside the stainless steel protective pipe. The heating winding wire is evenly wound around the heat pipe. The thermocouple is fixed to the inner wall of the centering barrel. The thermocouple and the heating winding wire are electrically connected with the temperature controller through the cable. The centering barrel is sleeved with the patching pipe body which is clamped to the top of the conical limiting barrel. Casing patching work can be completed without hydraulic expansion or gunpowder explosion or other means, operation is convenient, and construction is safe.

The invention relates to a self-expanding inorganic foam foaming filling material for mines. The foaming filling material comprises, by weight, 82-96 parts of a hydraulic cementing material, 1-5 partsof an air entraining agent, 1-5 parts of a reactive chemical foaming agent, 0.5-2 parts of an early strengthening agent, 1-5 parts of a thickener, 0.5-1 part of a foam stabilizer and 1-5 parts of a coagulation accelerator. The foaming filling material can be conveyed for a long distance by screw grouting after being mixed with water having an amount 2-3 times the amount of the foaming filling material, so large-water-material ratio and long-distance conveying is achieved; and the above obtained slurry is continuously foamed and expanded in the conveying process, has a large expansion ratio after being discharged from a tube orifice, and also has the characteristics of certain self-expansion, permanent consolidation, and realization of no shrinkage or collapse and stable volume of a foamedbody before being completely solidified. The product has excellent construction performance, has a good fluidity in a conveying pipeline, makes the foamed body have a small specific gravity and a high strength, is suitable for filling and sealing treatment of the top-coal caving region and corners over and below of underground coal mines, is especially suitable for filling of irregular caving spaces, and realizes the dense topping effect by means of the self-expansion of the material.

The invention provides novel inorganic-inorganic composite paste. The inorganic-inorganic composite paste comprises the raw materials of a base material, a filler and a disperse-phase additive according to the mass ratio of (1-1.6):(1.2-2.3):(0.003-0.03), wherein the base material is nanoscale silica sol, the filler is one or more selected from the group consisting of alumina, silicon dioxide, fire clay and talcum powder, and the disperse-phase additive is one or more selected from the group consisting of silane coupling agents and cellulose substances. By filling a cavity between a coke ovenprotective plate and an oven door frame with the inorganic-inorganic composite paste in an injection mode, the sealing degree between the coke oven protective plate and the oven door frame can be increased, smoking and disordered emission at the oven door frame are lowered, the coke oven environment is improved, and meanwhile the impact force on an oven wall when a coke oven engine dismantles andsuspends an oven door is buffered.

The invention discloses a sealing hook embedding material for coke oven gaps. The sealing hook embedding material comprises the following effective components: nano silica sol serving as a continuousphase, and carbonized silicon cellulose powder, silicon dioxide powder, aluminum oxide, clinker refractory mortar and pitch coke powder or petroleum coke powder used as filler, wherein the mass part ratio of the continuous phase to the filler is 1: (1.85-3.0). In addition, the invention also discloses a sealing hook embedding material for coke oven gaps, the sealing hook embedding material is composed of nano silica sol and filler, the filler is composed of carbonized silicon cellulose powder, silicon dioxide powder, aluminum oxide, clinker refractory mortar and pitch coke powder or petroleumcoke powder, and the nano silica sol accounts for 25-35% of the mass of the sealing hook embedding material. In addition, the invention further discloses a manufacturing method of the sealing hook embedding material for coke oven gaps. The sealing hook embedding material disclosed by the invention has the characteristics of self-sintering, self-expansion, high temperature resistance and multiple pores, and can achieve high bonding strength with a cast steel component after being sintered.

The invention provides a method for organizing and managing scattered resources in a public cloud mode. A public cloud comprises two portions: a cloud computing management platform and a security-reinforced virtual machine monitor. The virtual machine monitor operates on user equipment and extracts relevant information of the equipment; the virtual machine monitor logs on the cloud management platform and reports the relevant information of the equipment automatically; and after the virtual machine monitor logs on the cloud management platform, the virtual machine monitor is subjected to the unified management of the cloud platform, is communicated with the cloud platform and receives calculating, storage and network execution requests of the cloud platform. The method can enable computing resources of existing personal computers, notebook computers, data centers in various scales, servers, storage devices, mobile telephones and tablet computers and the like to be accessed to an internet to form the public cloud, so that unified management can be realized, and resources can be utilized fully.

The invention provides an anti-skid, self-dilating and degradable esophagus stent with a negative Poisson's ratio structure. The anti-skid, self-dilating and degradable esophagus stent with the negative Poisson's ratio structure is characterized by comprising a main stent body made of a totally or partially degradable material, wherein the main stent body comprises an upper end part, a middle partand a lower end part which are connected in sequence, an upper port and a lower port are formed in the top end of the upper end part and the bottom end of the lower end part respectively, and inner diameter of the upper port and inner diameter of the lower port are both larger than inner diameter of the middle part. Minimally invasive implanting of the esophagus stent is realized by the negativePoisson's ratio effect, and the esophagus wall is uniformly stressed in the stent dilating process, so that damage is effectively prevented, axial shrinkage is avoided and the stent is prevented fromdisplacing; meanwhile, by means of the negative Poisson's ratio structure, discomfort of a patient in an eating process can be relieved by the radial process of the stent while displacement is avoidedin the eating and swallowing process of the patient. The esophagus stent dilates automatically and gradually and is biodegradable under external motivation, and the problems of in-stent restenosis, difficulty in taking-out after implantation and the like are effectively solved.

The invention relates to the technical field of medical equipment, and especially relates to a biliary tract stent, a sealed storage box and a loader. The biliary tract stent comprises a stent woven body, and the stent woven body is made of a fully degradable material and is of a net-shaped structure with self-expansion performance so as to provide continuous circumferential support for the inner wall of the biliary tract. The biliary tract stent is made of the most degradable material with self-expansion performance. Therefore, the problems that an existing biliary stent needs to be taken back, the operation complexity degree is improved, and meanwhile pain of a patient is increased are solved.

The invention relates to a grouting material prepared from steel slag as well as a preparation method and application of the grouting material. The grouting material comprises the following componentsin parts by mass: 40-60 parts of steel slag powder, 40-60 parts of steel slag fine aggregate, 0.1-1 part of a water reducing agent, 0.2-5 part of an excitant, 0.1-10 part of a defoaming agent and 12-20 parts of water. The grouting material can be prepared by weighing the raw materials in parts by mass and uniformly mixing. Compared with grouting materials taking cement and sandstone aggregate asmain raw materials in the prior art, the grouting material disclosed by the invention takes the steel slag powder as a hydraulic cementing material to replace the cement and takes the steel slag fineaggregate to replace the sandstone aggregate, so that resource utilization of the steel slag can be realized, the environment is protected, and the grouting material has the advantages of good fluidity, self-expansion, no shrinkage, good corrosion resistance and the like and can be applicable to high-corrosion marine environments.

The invention discloses a novel waterproof building material. The novel waterproof building material comprises a wall, wherein a wall fixing layer is uniformly applied to the outer wall of the wall; awaterproof assembly is arranged on the surface, which deviates from the wall, of the wall fixing layer; and a decorative layer is arranged on the surface, which deviates from the wall fixing layer, of the waterproof assembly. According to the novel waterproof building material, a modified asphalt layer, an anti-corrosion layer, a sealing frame, a fireproof heat absorption layer, a glass fiber layer, a decorative layer, a waterproof filling agent, a positioning strip and other raw materials are matched with one another, so that a waterproof blocking effect can be achieved on the interior of the waterproof building material, and the waterproof filling agent still has the water absorbing capacity after being spontaneously dried and being changed from solid cakes into powdered solids again, so that both sides of the waterproof building material have certain permeability, the corrosion resistance of the waterproof building material is improved while the recovery efficiency of the inner andouter sides of the waterproof building material is guaranteed, the stabilizing effect of the waterproof building material is effectively increased, and the waterproof building material is prevented from falling off.

The present invention provides a minimally invasive surgery system using a self-deployable flexible micro-manipulator and a control method thereof. The structure of the operating arm includes a foldable flexible micro-operating arm and a foldable surgical forceps; the flexible micro-operating arm is located at the end of the entire surgical system and penetrates deep into the surgical object, and its interior is connected to the rope-driven control mechanism through a rope structure; the rope-driven control The mechanism uses the motor to extend or shorten the rope inside the system to drive the deformation of the flexible micro-operating arm structure, so that the foldable surgical forceps can complete the surgical action. The structure of the surgical system proposed by the invention is convenient for miniaturization, and has functions such as driving, sensing, and variable stiffness. It solves the problems that traditional surgical robots are difficult to miniaturize and lack sensory feedback. The operating arm self-deploys after passing through a small wound, meeting the needs of minimally invasive surgery in a small space.

The invention discloses a coke oven burner grouting material. The coke oven burner grouting material comprises the following effective components: liquid phenolic resin serving as a base material, silicon dioxide powder, mullite powder and clay refractory mortar serving as fillers, and a silane coupling agent and polydimethylsiloxane serving as additives, wherein the mass part ratio of the base material to the fillers to the additives is (0.25-0.35): (0.64-0.74): (0.005-0.015). In addition, the invention further discloses a coke oven burner grouting material which comprises the following components in percentage by mass: 25-35% of liquid phenolic resin serving as a base material, 64-74% of silica powder, mullite powder and clay refractory mortar serving as fillers, and 0.5-1.5% of a silanecoupling agent and polydimethylsiloxane which are used as additives. In addition, the invention further discloses a manufacturing method of the coke oven burner grouting material. The coke oven burner grouting material has the characteristics of favorable flowability and favorable dispersity.

The invention discloses a sealing filler for cracks in coke oven protection plates, which comprises active ingredients: phenolic resin solution as a continuous phase; silica powder, alumina and gas phase silica as fillers; a dispersed phase, It contains at least one of silane coupling agent, sodium alkyl xanthate and polyoxyethylene ether; where measured in parts by mass: continuous phase: filler: dispersed phase is (0.347-0.497): (0.5-0.65) :(0.003‑0.015). In addition, the invention also discloses a sealing filling material for the cracks of the coke oven protection plate, the mass percentage ratio of each component is as follows: phenolic resin solution as the continuous phase: 34.7-49.7%; silicon dioxide as the filler Powder, alumina and fumed silica: 50-65%; dispersed phase: 0.3-1.5%; dispersed phase is composed of at least one of silane coupling agent, sodium alkylxanthate and polyoxyethylene ether.

An expandable landing ladder with shape memory effect relates to the aerospace field. The invention aims to solve the problem that the existing landing ladder has a complex structure and a large weight, which causes a large weight to be carried during launch. Two Ω-shaped shape-memory composite beams butt joints, the shape-memory foam is filled in the gap between the two Ω-shaped shape-memory composite beams, and the inner surfaces of the two Ω-shaped shape-memory composite beams are pasted with A resistive heating sheet, a resistive heating sheet, is used to raise the temperature of the Ω-shaped shape-memory composite beam above its glass transition temperature in the energized state, so that the Ω-shaped shape-memory composite beam expands, and the shape-memory foam Being compressible, shape-memory foam is used to provide additional load-carrying capacity for the deployment of Ω-shaped shape-memory composite beams. It serves as an important bridge between the lander and the planet's surface.

The invention relates to the technical field of medical equipment, in particular to an anastomotic stoma anti-fistula device, a sealed storage box and a loader. An anastomotic anti-fistula device, including: a stent braid, which is a fully degradable material and has a self-expanding mesh structure to provide continuous circumferential support to the inner wall of the intestinal tract; On the surface of the stent braid, the meshes on the stent braid are coated; and the coating is a fully degradable material. The stent braid is set as a fully degradable material with self-expandability, and the covering film used to cover the surface of the stent braid is also set as a fully degradable material. Therefore, the existing large intestine anti-fistula device needs to be retrieved, which increases the complexity of the operation and increases the pain of the patient.

The invention relates to the technical field of medical equipment, in particular to an anastomotic stoma fistula prevention device, a sealed storage box and a loader. The anastomotic stoma fistula prevention device comprises a stent woven body which is made of a fully degradable material and is of a net-shaped structure with self-expansion performance so as to provide continuous circumferential support for the inner wall of the intestinal tract; a covering film covering the surface of the stent woven body so as to cover the meshes in the stent woven body; and a covering film is made of a fully degradable material. The stent woven body is made of a full-degradable material with self-expansion performance, and a covering film used for covering the surface of the stent woven body is also made of a full-degradable material. Therefore, the problems that an existing large intestine fistula prevention device needs to be taken back, the operation complexity degree is improved, and meanwhile the pain of a patient is increased are solved.

The invention relates to the technical field of surveying equipment, in particular to a portable site surveying device, which includes a main box. This kind of portable site survey device, the rotating metal pin is screwed into the non-hard ground through the positioning spiral pattern on the surface to realize the cutting, so as to fix the main box on the rough ground to realize its stable placement on the uneven terrain and realize the equipment placement The self-deployment of the frame can effectively facilitate the user to take and place the survey equipment and tools by lifting the equipment placement frame, and it is also convenient for the user to quickly adjust and maintain the survey equipment in a standing position without frequent bending and lifting The equipment has better use comfort, reduces the physical consumption of the survey, and realizes the self-adaptive balance of the equipment rack, so that the equipment and tools will not be dropped and bumped due to the tilt when the main box is opened, and at the same time, it ensures that the subsequent survey process , can temporarily place the objects at hand, and provide a standard horizontal plane for calibration of related equipment and as a survey base point.

The invention relates to a developable and recoverable self-expanding ureteral stent tube and a preparation method thereof. The ureteral stent tube is prepared from a yarn in a crochet needle knitting method, in the crochet needle knitting process, the remaining yarn of the yarn after the ureteral stent tube is knitted serves as a recovery tail, and the recovery tail is recovered by overlooking observation. A string of V-shaped yarn structures form a coil on the uppermost layer of a support pipe, the recycling tails are sequentially sleeved in the V-shaped yarn structures in a stringing mode to form a ring shape, and specifically, the recycling tails penetrate out of one side of one V-shaped yarn structure and then penetrate through the other side of the next V-shaped yarn structure, operation is repeated, and the remaining thread is locked by the coil on the uppermost layer of the ureter stent tube; and one end of the prepared ureteral stent tube is of a temporary fixing structure formed by the recycling tail. When the ureteral stent tube is removed, the whole ureteral stent tube is directly disassembled into a line to be pulled and taken out, secondary injury to a patient caused by removal is avoided, and the ureteral stent tube has self-expansibility and good developing performance.

The invention discloses an expandable and recoverable synchronous bone grafting set for intervertebral fusion under a percutaneous spine endoscope, and belongs to the field of medical instruments. The bone grafting set comprises an implantation frame, a bone grafting tube arranged on the implantation frame, an implantation cavity formed in the implantation frame and a supporting block arranged in the implantation frame and slidably connected with the implantation frame; a first ejection face is arranged at the bottom end of the supporting block; an ejection block slidably connected with the supporting block is arranged in the implantation cavity; a second ejection face corresponding to the first ejection face is arranged at the end, close to the supporting block, of the ejection block; the end, away from the supporting block, of the ejection block is in threaded connection with the implantation frame; a bone grafting hole communicated with an inner cavity of the bone grafting tube and the implantation cavity is formed in the ejection block; and a screw-in rod detachably connected with the bone grafting hole is arranged in the bone grafting tube. The bone grafting set has the advantages of being small in size, convenient to implant, expandable and recoverable, is capable of achieving synchronous bone grafting, is safe and convenient, is used for intervertebral fusion under the spine endoscope, facilitates simplification of intervertebral fusion operation under the endoscope, and improves the success rate of intervertebral fusion.

The invention discloses a cement pavement crack reinforcing structure and a method. The structure comprises a three-dimensional continuous structure reinforcing body for continuously reinforcing cracks in a to-be-repaired layer of a pavement, the three-dimensional continuous structure reinforcing body comprises a plurality of oblique connecting piles which are sequentially connected in the extending direction of the cracks, each oblique connecting pile is connected with a plurality of reinforcing piles, and the intersection ends of the oblique connecting piles and the reinforcing piles are expansion anchoring heads; the method comprises the following steps: 1, drilling an inclined pile hole; 2, drilling a reinforcing pile hole; 3, drilling and chambering; 4, filling and pouring body. According to the invention, the plurality of continuous oblique connecting piles and the plurality of reinforcing piles are intersected to form a three-dimensional continuous structure reinforcing body; anexpanded upper flange clamping plate can be constructed at the tops of the oblique connecting piles and the tops of the reinforcing piles, an expanded anchoring head and the corresponding upper flange clamping plate in the three-dimensional continuous structure reinforcing body clamp and reinforce a pavement to-be-repaired layer, the fractured pavement to-be-repaired layer is effectively connected and borne, the topological structure of the three-dimensional continuous structure reinforcing body is flexibly expanded, and the construction period is short.

The invention discloses an expandable and recoverable intervertebral fusion device under a spine endoscope, and belongs to the field of medical instruments. The expandable and recoverable intervertebral fusion device comprises an implantation frame, a mounting pipe arranged on the implantation frame, an implantation cavity arranged in the implantation frame and supporting blocks which are arranged on two sides of the implantation frame and are slidably connected with the implantation frame, wherein a first ejection surface is respectively arranged at the bottom end of each supporting block; ejection blocks slidably connected with the supporting blocks are arranged in the implantation cavity; a second ejection surface corresponding to the first ejection surface is arranged on one end, which is close to each supporting block, of each ejection block; one end, which is far away from each supporting block, of each ejection block is in threaded connection with the implantation frame; a bone grafting hole communicating with the inner cavity of the mounting pipe and the implantation cavity is arranged in each ejection block; and a screw-in rod detachably connected with the bone grafting hole is arranged in the mounting pipe. The expandable and recoverable intervertebral fusion device has a small size, is convenient in implantation, is used for intervertebral fusion surgery under the spine endoscope, and is beneficial for simplifying an intervertebral fusion surgery operation under the endoscope and improving an intervertebral fusion success rate.