226 results about "Flaked Material" patented technology

A device for attaching a sheet-like implant to a target tissue. The device includes a fastener push rod including a first portion, a second portion and a force limiting mechanism operably coupled between the first portion and the second portion. A fastener is carried by the second portion of the fastener push rod. The force limiting mechanism transmits longitudinal movement of the first portion to the second portion while the forces applied to the fastener by the fastener push rod are less than a predetermined value such that longitudinal movement of the first portion of the fastener push rod causes substantially equivalent longitudinal movement of the second portion. The force limiting mechanism allows relative longitudinal motion between the first and second portions while the forces applied to the fastener are equal to or greater than the predetermined value such that the application of undue forces to the fastener is prevented.

Implant delivery systems for delivering sheet-like implants include a delivery shaft, an implant expander, a sheath, and a sheet-like implant. In some embodiments, the delivery shaft has a proximal end and a distal end. The implant expander is mounted to the distal end of the delivery shaft. The implant expander includes a central portion and a plurality of leg portions radiating from the central portion. The implant expander is evertable between an unstressed configuration in which a distal surface of the implant expander defines a concave surface, and a first compact configuration in which the distal surface of the implant expander defines a convex surface. The implant expander has a first lateral extent when the implant expander is free to assume the unstressed configuration. The sheath defines a lumen having a lumen diameter. At least a portion of the delivery shaft is slidably disposed in the lumen. The lumen diameter is smaller than the first lateral extent of the implant expander so that the sheath holds the implant expander in the first compact configuration when slidably disposed therein. The sheet-like implant overlays at least a portion of the distal surface of the implant expander with portions of the sheet-like implant extending between the leg portions of the implant expander and the sheath. Methods of treating a rotator cuff of a shoulder are also disclosed.

A fastener for attaching a sheet-like implant to tissue or bone may be provided with a first arm having a proximal portion and a distal portion, a second arm having a proximal portion and a distal portion, and a bridge formed at least in part by the proximal portion of the first arm overlapping the proximal portion of the second arm. Each of the first and second arms can include at least a partial loop member having a lumen therethrough slidably receiving the other arm, each arm further including a tissue retention member on a distal portion having a projection extending therefrom for engagement of bone or tissue when inserted therein. The staple can also include a one-way position retention assembly for allowing distal movement of each at least partial loop member relative to the other arm therethrough to tension the fastener and maintain a desired configuration.

A fastener for attaching a sheet-like implant to tissue or bone may be provided with a first arm having a proximal end and a distal end, a second arm having a proximal end and a distal end, and a bridge extending therebetween. Each of the first and second arms include a trunk portion defining at least a portion thereof, the trunk portion having a lateral extent larger than a lateral extent of the bridge or non-trunk portion of the arm adjacent thereto and can be mounted eccentrically to the bridge or non-trunk portion of the arm adjacent thereto such that the staple includes a first change in lateral stiffness disposed proximate the bridge or non-trunk portion of the arm abutment with the trunk. Fastener delivery devices and methods are also disclosed.

A binder for papers, photographs, or other sheet-like materials is provided with a cover having one or more window openings defined therein. A flat, transparent protective sheet is located in contact with the inside surface of the binder cover and a backing sheet overlies the protective sheet. The backing sheet is secured to the peripheral margin of the protective sheet, and elsewhere as required, to delineate at least one, and preferably a plurality of pockets. The pockets are formed between the backing sheet and the protective sheet. An elongated slit in defined through the backing sheet behind each pocket created. The peripheral edges of the backing sheet are permanently secured to the inside surface of the binder cover. Photographs or other flat display materials may be inserted into the pockets formed between the backing sheet and the protective sheet through the elongated slits. The pockets are delineated so that they are aligned with the window opening in the cover. The photographs or other display materials may thereby be viewed through the window openings from the outside through the transparent protective sheet. Selected display materials may be inserted and withdrawn from the pockets through the elongated slits in the backing cover.

A method is for manufacturing a speaker-use center cap provided with a first cap member layer of synthetic resin and a second cap member layer layered in intimate contact with the first cap member layer and made of a material different from that of the first cap member layer. The method includes: a pre-molding step of attaching a non-molded sheet-like material which is a raw material of the second cap member layer to a mating surface of one of die parts of an injection molding die and thereafter closing the injection molding die to apply a predetermined cap shape to the sheet-like material; and an injection molding step of injecting the synthetic resin material into the injection molding die closed by the pre-molding step to form the first cap member layer to be intimate contact with the second cap member layer.

The invention discloses a preparation method for a hemostatic material, an absorbable carrier material prepared by an electrospinning technology or a combination of the absorbable carrier material and a blood coagulation factor film-shaped material prepared by the electrospinning technology, wherein blood coagulation factors are fibrinogen and thrombin from human or animal blood. The superfine fibre prepared by the electrospinning technology has the advantages that the specific surface area of the reticulate structure of the hemostatic material is increased, and the mutual fusion action between the reticulate structure and tissues is promoted. The hemostatic material is good in biocompatibility, more remarkable in hemostatic effect and convenient to use, and can be used for hemostasis in trauma treatment and clinical operations.

A apparatus and method for transporting oversized objects, particularly substantially flat or planar objects. In certain embodiments the object is a material in sheet form, such as a wood sheet, metal sheet, dry wall, and the like, or a narrow object such as bed mattresses, tabletops, mirrors and plate glass, doors and the like. Preferably the object is capable of being transported by a single person. In certain embodiments the apparatus is structured to be capable of transporting a mattress through an open doorway without unloading the object.

The present invention relates to an equipment for detecting printed quality of fluorescence image of sheet material. Said equipment includes transmission device, lighting device, receiving device and information processing device. Said invention also provides the action of the above-mentioned every device and detection method by using said equipment.

The invention pertains to the material technology field, and more particularly relates to an inorganic flake composite with the surface having dual natures, and a preparation method thereof. The invention takes an inorganic hollow microsphere, a polymer composite ball with the surface integrated with an inorganic lamella, or polymer composite fiber with the surface integrated with an inorganic lamella as raw materials, the external surfaces of which are modified and crushed to obtain inorganic flake materials; and then exposed fresh surfaces are modified again to obtain the inorganic flake materials with both surfaces having different chemical properties. The inorganic flake composite of the invention with the surface having the dual natures is composed of an inorganic substrate and a single layer, double layers or multiple layers of compounded surface chemicals on the substrate, and both sides of the substrate have different surface chemicals. The method provided by the invention is simple, convenient and easy to be operated, and not only possesses the feasibility of large-scale production, but also can carry out multi-step modification to the surfaces of micro-granules so as to meet different needs.

The invention discloses a foamed nickel self-supported flake-shaped Ni3P/C composite material for a sodium ion battery negative electrode and a preparation method for the composite material. According to the composite material, the flake-shaped Ni3P is uniformly growing on the foamed nickel; and the Ni3P is uniformly coated with a C film. The preparation method for the composite material comprises the steps of taking a nickel compound as the raw material, and uniformly growing a flake-shaped nickel hydroxide layer on the surface of the nickel compound through a hydrothermal method; then taking sodium hypophosphite as a phosphorus source, and performing thermal insulation at a temperature of 300 DEG C for 2h to prepare the foamed nickel self-supported flake-shaped Ni3P material; and finally, performing carbon coating on the foamed nickel self-supported flake-shaped Ni3P material to obtain the foamed nickel self-supported flake-shaped Ni3P/C composite material. The sodium ion battery prepared from the Ni3P/C composite material prepared by the invention has excellent specific capacity, rate capability and stable cycling performance; and in addition, the preparation method is simple and feasible, wide in raw material resources and suitable for industrial production.

The invention discloses an automatic cutting machine which comprises a work machine table. The upper end of the work machine table is provided with a work table top. The work table top is provided with two supports corresponding to each other. A work-piece conveying table bracket is arranged between the two supports and provided with two corresponding work-piece conveying tables. A cutting device is arranged between the two work-piece conveying tables. One side of the work machine table is provided with an electrical appliance power distribution cabinet. One end of the work table top is provided with a touch type operation panel. Flaky materials are placed on an acrylic plate, a start key is pressed, and feeding idler wheels can advance in a running-down mode; when a photoelectric sensor senses coming of the materials, the edges can be automatically cut and trimmed neatly according to the length set by the photoelectric cardinal number, fixed length cutting is carried out and the cutting number is controlled according to the cut length set by a numerical control device; after the number of cutting is finished, the feeding idler wheels enable the acrylic plate to retreat to the original start position according to the length set by the reversing length.

A feeding unit from reels (B1, B2) of sheet-like material (F1, F2), in particular but not exclusively printed plastic film with print-position marks for automatic packaging machines, comprising two unrolling shafts (1, 2) of respective reels (B1, B2) of material (F1, F2), for feeding in turn said material towards means (7, 8) for cutting and welding the tail of material of a running out reel (B1) and the head of a fresh, loaded reel (B2). Such means comprise suction, cutting and welding devices (7, 8) movable so as to approach and move away from each other to press the material (F1, F2) over a welding plane (Z). Each device is formed by a group of mutually stacked suction and cutting modules, at least two of such modules having respective guides for cutting means slidable in a transversal direction with the respect to the feeding direction of the material, whereby it is possible to select and adjust the number of modules according to a desired welding height.

An apparatus for collection and removal of morcellated tissue includes a flexible sheet material including a top surface and a bottom surface. The sheet material is configurable from a roll configuration, to a substantially planar mat configuration, to a pouch configuration.

An improved method for students to carry out and observe chemical reactions by mixing a fluid reactant with a reactive component to produce a reaction product. The improvement is the provision of a package fabricated of upper and lower sheet material defining at least a first closed chamber containing a first fluid reactant and an adjacent second closed chamber containing a reactive component, the package formed by sealing the upper sheet material to the lower sheet material at the periphery of the chambers so that when the first chamber is pressed, then the first fluid reactant will break the seal between the first and second chambers and flow into the second chamber to react with the reactive component in the second chamber to produce an observable reaction product or condition. For example, the fluid reagent can be a dilute aqueous solution of sodium chloride and the reactive component can be a dilute aqueous solution of silver nitrate, the silver nitrate reacting with the sodium chloride to form silver chloride precipitate which is easily observed by the student through the flexible sheet material.

The present invention provides, in certain aspects, grafting devices deliverable into the body for repairing defects in bodily structure walls. One such grafting device comprises a compliant sheet-form material, and a removable resilient element that is retained in association with the sheet-form material. In some forms, the resilient element is adapted for delivery in its entirety into the body, and thereafter, can be disassociated from the sheet-form material for removal from the body. The sheet- form material may be formed with one or more of a variety of biocompatible materials including some that are naturally derived and some that are non-naturally derived. Illustratively, the sheet-form material may be comprised of a remodelable, angiogenic material, for example, a remodelable extracellular matrix (ECM) material. In additional embodiments, the invention provides methods and apparatuses for delivering these and other inventive grafting device into the body.

The invention relates to a flake Ag2S-loaded Ag3PO4 nano-sphere composite visible light catalyst and a preparation method thereof. The flake Ag2S-loaded Ag3PO4 nano-sphere composite visible light catalyst is characterized by consisting of flake Ag2S and Ag3PO4 which is grown on the surface of the flake Ag2S. The preparation method comprises the following steps: (1) performing a hydrothermal reaction on a zinc source compound and a sulfur source compound at 150 to 170 DEG C by taking a mixed solution of ethylenediamine and water as a solvent to prepare a flake ZnS material for later use; (2) mixing the obtained material in step (1) and a solution of silver nitrate uniformly, enabling a reaction at 90 to 100 DEG C and performing post-processing to obtain an Ag2S material; (3) adding the Ag2S material into the aqueous solution of AgNO3 at 15 to 25 DEG C, stirring in dark, adding the solution of Na3PO4 dropwise under magnetic stirring, continuing to perform a reaction in dark after the solution of the Na3PO4 is added dropwise, and performing post-processing to obtain the flake Ag2S-loaded Ag3PO4 nano-sphere composite visible light catalyst. Compared with the Ag3PO4, the compound material serving as a visible light catalyst has the advantage that the photocatalytic performance thereof can be improved obviously.

The invention discloses a preparation method of a platy nanometer material. The method includes the steps of dispersing micro powder materials of a layer-shaped crystal structure in a mixed solution of hydrochloric acid and nitration, and conducting heating and ultrasonic processing on the mixed solution to obtain the platy nanometer material. The method has the advantages that the method is simple, raw materials can be easily obtained, efficiency is high, yield is high, and the method is suitable for mass production. The thickness of the obtained platy nanometer material is less than 20 nanometers, and dispersibility is high. The method can be suitable for wide application in the field of nanometer material preparation.

A dispenser for dispensing and advancing sheet material is provided. The dispenser includes a frame and a drive roller rotationally mounted to the frame. The drive roller is configured for engagement with sheet material so that rotation of the drive roller causes movement of the sheet material. A segmented gear with first and second drive segments is mounted to the frame and is in communication with the drive roller. A spring is included and is in communication with the segmented gear. The spring is configured so that rotation of the segmented gear causes the spring to store potential energy. Release of potential energy in the spring causes the segmented gear to rotate. A cutting blade is provided and is configured for cutting the sheet material in order to release potential energy. The dispenser allows for a piece of sheet material to be dispensed therefrom and subsequently presents the user with a new piece of sheet material for future removal.