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 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 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 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 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 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 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.