475results about How to "Effectively closed" patented technology

A bone marrow sampling device is provided, including an outer cannula having a sidewall with a plurality of openings and a distal tissue penetrating tip. An inner cannula is positioned within the outer cannula, and includes a sidewall with at least one opening. Selective relative movement of the inner cannula and the outer cannula enables the device to be configured in multiple bone marrow sampling modes in which the at least one opening in the sidewall of the inner cannula is aligned with different openings in the sidewall of the outer cannula such that bone marrow can be drawn into the inner lumen of the inner cannula from different radial and longitudinal positions external to the sidewall of the outer cannula without the need to reposition the outer cannula.

The invention discloses a neutral inorganic composite material for dehydration, solidification and modification of high water content sludge. The composite material comprises a powdery mixture consisting of the following components in part by weight: 100 parts of water hardened solidifying material consisting of hydrated gypsum and magnesium oxide, 80 to 120 parts of inorganic water absorption ash material, 20 to 40 parts of inorganic substance aid hardened material, 1 to 10 parts of high polymer coagulant and 1 to 5 parts of modifying functional agent. After being treated by the neutral inorganic composite material, the solidified sludge has high compressive strength; the pH of the lixivium is neutral, and meanwhile, harmful substances such as heavy metal and the like in the sludge can be effectively solidified; the treated sludge meets the requirement of landfill soil, soil for earthwork or soil for greening and farmlands; and the neutral inorganic composite material can be widely applied to the dehydration, solidification and modification of the high water content sludge such as sludge from waterworks, dredged bottom mud of rivers and lakes, residual building soil and the like.

A composition comprising thermoset polymer, shape memory polymer to facilitate macro scale damage closure, and a means for molecular scale healing is disclosed; the composition has the ability to resolve structural defects by a bio-mimetic close-then heal process. In use, the shape memory polymer serves to bring surfaces of a structural defect into approximation, whereafter use of the means for molecular scale healing allowed for movement of the healing means into the defect and thus obtain molecular scale healing. The means for molecular scale healing can be a thermoplastic such as fibers, particles or spheres which are used by heating to a level at or above the thermoplastic's melting point, then cooling of the composition below the melting temperature of the thermoplastic. Compositions of the invention have the ability to not only close macroscopic defects, but also to do so repeatedly even if another wound/damage occurs in a previously healed/repaired area.

The invention provides a solid-liquid separation toilet bowl and a solid-liquid separation treatment system comprising the solid-liquid separation toilet bowl. The solid-liquid separation toilet bowl comprises a panel and a toilet bowl body, wherein the middle part of the panel is provided with a seat hole; the toilet bowl body is provided with a urine collection cavity and an excrement collection cavity; and the urine collection cavity and the excrement collection cavity are arranged with one in front of the other in longitudinal direction of the panel, are positioned below the seat hole and are opposite to the seat hole. Through the urine collection cavity and the excrement collection cavity formed in the toilet bowl body and by arranging the urine collection cavity and the excrement collection cavity with one in front of the other in the longitudinal direction of the panel, the urine collection cavity arranged at the front end is used for collecting urine, the excrement collection cavity arranged at the rear end is used for collecting the excrement, so that the urine and the excrement are effectively prevented from being mixed in the toilet bowl body; and thus, separation and recovery of the urine and the excrement are realized, further recycling of the excrement and the urine is realized respectively, and premise is provided for realizing the value of full utilization of the excrement and the urine.

A land-type solar seawater desalinating apparatus with capillary evaporation function is composed of seawater tube, seawater pump, seaweed removing unit, fresh water condensing plate and its cooling trough, capillary evaporator, sealed transparent casing, seawater distributing tube, concentrated saline collector, fresh water collector, etc.

By providing a fully adjustable net system which is quickly and easily mounted to any hockey goal assembly for peripherally surrounding the outer edges of the goal assembly and establishing an expanded protected area or zone, an easily used, readily deployable backstop or net system is attained which may be employed by a wide variety of sports enthusiasts, for controlling or preventing unwanted, errant shots from damaging property or people in the surrounding area. Furthermore, the net system of the present invention may be constructed in a wide variety of alternate sizes, shapes, and configurations for achieving broad based use and applicability.

Systems, devices, and methods of the present application can accelerate and reduce medical complications associated with healing of non-planar wounds such as amputation wounds. The devices and methods utilize a collapsing structure and negative pressure to cause the shaped wound to preferentially close. The structure can accommodate movement over curved tissue surfaces, which can utilize scales or interleaved elements to provide efficient wound closure along arcuate paths. This structure can enable gradual closure from the deepest portion of the wound to the shallowest portion.

The invention relates to a supporting method of a roadway in a coal mime, particularly to a supporting method of a permeable soft broken rock stratum roadway. The supporting method aims at solving the problems that soft broken rock stratum roadways especially permeable soft broken rock stratum roadways are poor in supporting effect, high in cost and the like. The supporting method comprises the steps of first concrete spraying; combined support through high strength deformed steel bar anchor rods and diamond metal nets; anchor cable installation; secondary concrete spraying; installation of chemical pulp grouting anchor rods; installation of cement slurry grouting anchor rods.

Devices (11, 111) for providing temporary access to the ventricle of the heart and then closing such an access passage when the operation demanding such access has been completed. These devices include an anchor (13, 113) with a wire spiral (19, 119) for implantation in the tissue wall of the heart and a handle (15, 115) detachably connected to the anchor. The handle provides an axial passageway in which a hollow needle (27, 127) is slidably and stably received. With the anchor in juxtaposition with the apex of the heart, the pointed end of the hollow needle is inserted into the ventricle, and its presence traversing the wall of the heart provides a stable axis about which the wire spiral (19, 119) can be rotated to seat the anchor in precise circumscribing fashion about the hollow needle (27, 127).

The invention discloses anticorrosive sealing liquid and a method for sealing an anodic oxide film containing a copper-aluminium alloy by utilizing the same. The anticorrosive sealing liquid is prepared by dissolving 5-15g of adipate and 10-100mu g of anticorrosive in 100ml of deionized water. The anticorrosive is 2-mercaptobenzothiazole, benzotriazole, salicylaldoxime, 8-hydroxyquinoline or quinaldic acid. The sealing method is characterized by sealing the anodized copper-aluminium alloy in the electric field. By the sealing method, not only the micropores of the anodic oxide film are sealed, but also the anticorrosive is adsorbed in the anodic oxide film in the applied electric field, when the anodic oxide film is corroded, the anticorrosive is released from the micropores of the anodic oxide film through capillarity to play a role of corrosion inhibition to the copper-bearing phases in the base materials containing the copper-aluminium alloys to prevent further corrosion.

A valve mechanism adapted for a fluid-discharging port of a tube-type fluid container, comprising: a valve seat portion 40 having an opening 41 through which a fluid flows; a valve portion 20 comprising a valve body 21 having a shape corresponding to the opening 41, and a shaft 22 connected to the valve body 21 and extending downward from the valve body 22; and a valve support portion 30 comprising: (i) a bottom plate 39 to which a tip of the shaft 22 is connected; (ii) an annular support 35 fixedly connected to the valve seat portion 40; and (iii) multiple connectors 32 connecting the bottom plate 39 and the annular support 31, the connectors 32 elastically urging the bottom plate 39 downward to close the opening 41 with the valve body 21 and being bendable as the bottom plate 39 moves upward and pushes the valve portion 20 to open the opening 41.

The invention provides a filling wall body capable of protecting a laneway through soft yielding in non-chain-pillar filling mining and a construction method of the filling wall body capable of protecting the laneway through soft yielding in non-chain-pillar filling mining, and belongs to the coal mine tunnel supporting and protecting technology. The filling wall body is composed of an upper portion and a lower portion, wherein the upper portion is an expansible organic foaming filling main wall body with large shrinkage, the foaming multiple ranges from 10 to 75, the uniaxial compressive strength is not more than 1.2Mpa when the volume compression amount is 80%, the lower portion is a paste-like filling main wall body, the paste-like filling main wall body is composed of the mixture of water, cement, coal ash, river sand and gangue according to the mass ratio of 1:0.3:1.2:1.7:2.8, the 1d uniaxial compressive strength is larger than 1.2Mpa, and the 28d strength is larger than 10Mpa. The filling height and the configuration proportion of the two filling main wall bodies are adjusted through calculation, therefore, the contractibility of the filling wall body can be kept within a reasonable range, the filling wall body capable of protecting the laneway through soft yielding in non-chain-pillar filling mining can better adapt to the motion law of the roof strata, and the stability of gob-side entry retaining is guaranteed.

A valve seat portion 20 has a nearly tubular shape, at the bottom of which a circular opening portion 23 which functions as a valve seat is formed. A valve portion 10 has a ring-shaped supporting portion 11 which is disposed inside the valve seat portion 20. A valve body 12 has a shape corresponding to the circular opening portion 23, and multiple coupling portions couple the supporting portion 11 and the valve body 12. In the valve portion 10, the valve body can move between a closed position in which the valve body closes the opening portion 23 in the valve seat portion 20 and an open position in which the valve body opens the opening portion 23 by the flexibility of the four coupling portions 13.

The present invention relates to a food container assembly comprising a base and a lid wherein the base and the lid are structurally identical in one of the embodiments. The base and the lid include inter-cooperating sealing areas in the form of ridges and mating grooves. The base and the lid can be joined via a first hinge/latch combination in a mutually hingeable relationship along a pair of corresponding sides, and in addition, can be mutually secured along an opposing pair of corresponding sides via a second hinge/latch combination. According to one embodiment of the invention, the container base includes a bottom wall; a sidewall; and a peripheral rim having a ridge portion, a groove portion, a hinge flap and a locking area; wherein the container base is adapted for engagement and latching with another identical container base disposed in an inverted and superjacent relationship therewith.

The invention discloses water-based metal antirust paint. The water-based metal antirust paint is prepared from, by mass, 35-45 parts of pigment, 8-15 parts of filler, 8-15 parts of corrosion inhibitors, 10-20 parts of deionized water, 15-25 parts of silicone acrylic emulsion, 0.1-0.2 part of a dispersing agent, 0.1-0.2 part of a flatting agent, 2-5 parts of an adhesive force promoting agent, 1-3 parts of film-forming aiding agent, 0.1-0.3 part of surfactant OP-10, 0.1-0.2 part of a defoaming agent and 0.05-0.1 part of bacteriacide. The invention further discloses a preparation method of the water-based metal antirust paint. The water-based metal antirust paint solves the problems that water-based metal antirust paint used in the current market is poor in corrosion resistance and adhesive force, slow in drying, poor in early-stage water resistance and high in cost.

The invention discloses a sealing agent for aluminum and aluminum alloy anode oxide films and a preparation method for the sealing agent. The sealing agent comprises the following raw materials by lL: 15-20g of lanthanide nitrate, 0.6-0.8g of oxidizing agent, 0.25-0.3g of stabilizing agent and deionized water, wherein the additive amount of the deionized water is the amount of adding the deionized water until the volume is constant at 1L after the rest raw materials are mixed. According to the sealing agent disclosed by the invention, by utilizing the combined action of rare-earth metal and the oxidizing agent, porous layers of the anode oxide films can be effectively sealed, and the corrosion resistance of the anode oxide films is obviously improved. Meanwhile, the sealing agent disclosed by the invention does not contain chromium, nickel or fluorine, therefore, the human body cannot be harmed, and the environment cannot be polluted. The sealing agent is a green environmental-protection sealing agent. Moreover, the aluminum and aluminum alloy anode oxide films can be sealed at normal temperature, therefore, not only is the energy consumption reduced but also the operation convenient is improved. After being treated by the sealing agent disclosed by the invention, the aluminum and aluminum alloy anode oxide films are compact in surface structure, is in uniform golden yellow and is higher in bonding strength.

A valve mechanism adapted for a mouth portion of a tube-type fluid container includes: a valve seat portion having an opening through which a fluid passes; a disc-shaped valve portion; and an annular fixing portion for affixing the valve portion to the valve seat portion. The valve portion includes: an annular supporting portion, a closing portion for closing the opening, and multiple connecting portions connecting the closing portion to the annular supporting portion to urge the closing portion toward the opening. The annular supporting portion, the closing portion, and the multiple connecting portions are integrally formed.