45results about How to "Thin and flexible" patented technology

An apparatus and method for the transduction, acquisition, and processing of physiologic variables are described. The apparatus is a self-contained, patient-worn device consisting of a flexible substrate, a transduction means, a power generation means, and a signal acquisition and processing means, and a data transmission means.

A prosthetic implantable device that offers a reduction in fluid loss when the device is punctured, such as by a dialysis needle or suture needle, and the needle is subsequently removed. The device may be made to be thin and flexible, and with longitudinal stretch, in order that it also offers good handling and kink resistance to a surgeon. While the device is preferably of tubular form, flat sheets or other forms may also be made. The device includes inner and outer layers of a porous material having a microstructure of nodes interconnected by bent fibrils, and having void spaces between adjacent bent fibrils. The inner and outer layers are joined by an elastomeric adhesive that may interpenetrate the void spaces of the adjacent surfaces of the inner and outer layers, that is, the inner surface of the outer layer and the outer surface of the inner layer. Optionally, a middle layer of an elastomeric material may also be provided, joined to the inner and outer porous layers by the interpenetrating elastomeric adhesive. The device is preferably a vascular graft and more preferably a vascular graft for kidney dialysis.

A portable electronic device includes a portable electronic device housing having a surface and a primary, light-emissive display. A display skin covers a portion of the surface of the portable electronic device housing. The display skin provides a secondary, light-reflective display. The display skin includes an optically active layer comprising electrooptical material. A first electrode layer is disposed on a first side of the optically active layer proximal the surface of the portable electronic device housing. A second electrode layer disposed on a second side of the optically active layer distal of the surface of the portable electronic device housing. Electronic circuitry selectively activates the optically active layer such that images including portions of a document are selectively displayed by the display skin. The display skin is capable of maintaining a display of a selectively displayed portion of the document while the primary display is in an unpowered state.

To provide a heat cloth which is thin and flexible; even when as a reaction of an air-permeable heat cloth proceeds, a heat generating composition becomes massive so that flexibility is lowered, or a part of an accommodating bag rides up by shrinkage and curling as caused by heat generation, well keeps the bonding and holding state so that it does not fall off easily; is supple like cloths; is excellent in flexing properties; easily and surely fits to flexible places such as elbows and knees; is able to take warmth; is applicable with good follow-up deformation properties to various places of a human body such as curved parts including shoulders, arms, a neck and feet; and hardly causes an uncomfortable feeling and a process for producing the same.

A heat cloth having a heat generating composition molded body resulting from molding a heat generating composition containing surplus water as a connecting substance accommodated in an accommodating bag, wherein the accommodating bag is constituted of a substrate and a covering material; the covering material covers the heat generating composition molded body as provided on the substrate; the periphery of the heat generating composition molded body is heat sealed to form irregularities; sectional exothermic parts of a convex in which the heat generating composition molded body is accommodated are disposed while holding a sectioned part of a concave as a heat seal part; and the exothermic part is formed of a gathering of the sectional exothermic parts, which is characterized in that the substrate is substantially planar and does not contain a pocket, an accommodating division or an accommodating section; that the heat generating composition contains, as essential components, an iron powder, a carbon component, a reaction accelerator and water, does not contain a flocculant aid, a flocculant, an agglomeration aid, a dry binding material, a dry binding agent, a dry binder, a sticky raw material, a thickener and an excipient, contains surplus water so as to have a water mobility value of from 0.01 to 20, with the water in the heat generating composition not functioning as a barrier layer, and is capable of causing an exothermic reaction upon contact with air; that a volume of the heat generating composition molded body is from 0.1 to 30 cm³; that a capacity of the sectional exothermic parts to a ratio of the volume of the heat generating composition molded body is from 0.6 to 1.0; that a maximum height of the sectional exothermic parts is from 0.1 to 10 mm; that a width of the sectioned part as a space between the sectional exothermic parts is from 0.3 to 50 mm; that a minimum bending resistance on the surface orthogonal to at least a thickness of the heat cloth is not more than 100 mm; that a part of the accommodating bag has air permeability; and the surroundings of the accommodating bag are sealed.

Described herein are medical devices which are configured for implantation or insertion into a subject, preferably a mammalian subject. The medical devices contain one or more multilayer regions, which contain: (a) one or more (typically a plurality of) charged nanoparticle layers and (b) one or more (typically a plurality of) charged polyelectroyte layers. Such multilayers have a number of desirable attributes, including high strength, non-compliance, and flexibility. Also described herein are methods of making such devices.

The present invention provides a cardiac assist device which exerts pressure against the epicardial surface to assist the heart in pumping blood. The device may form a pumping space adjacent to an epicardial ventricular surface and/or an epicardial atrial surface. The cardiac assist device may permit the fluid to come into direct contact with the epicardium. The cardiac assist device may include a flexible jacket which at least partially collapses when fluid is withdrawn from the pumping space.

A self-expiring badge or label is provided that includes a clear substrate, an opaque adhesive layer, a liner web, and an ink pattern is provided. The clear substrate has a back surface and a front surface with the opaque adhesive layer on the back surface. The liner web has a first surface and a second surface, where the adhesive layer secures the substrate to the first surface. The ink pattern is on at least a portion of the second surface. Upon removal of the liner web from the adhesive layer, the portion remains secured to the clear substrate by the adhesive layer and the clear substrate is foldable to place the ink pattern in contact with the adhesive layer. The ink pattern migrates through the adhesive layer in a selected time interval and is visible through the clear substrate when the ink pattern is in contact with the adhesive layer.

The invention discloses a flexible temperature-sensitive sensor. The flexible temperature-sensitive sensor comprises a flexible substrate, a temperature-sensitive material layer, an electrode layer and a flexible protection layer, wherein the temperature-sensitive material layer is formed on the surface of the flexible substrate and provided with a three-dimensional porous nano-structure; the electrode layer comprises at least two electrodes, and the electrodes are led out from the temperature-sensitive material layer or the surface of the temperature-sensitive material layer; the flexible protection layer is formed on the surface of the temperature-sensitive material layer or the surface of the temperature-sensitive material layer and the portion of the electrode layer, on the surface of the temperature-sensitive material layer. The invention further discloses a body temperature monitoring system based on the flexible temperature-sensitive sensor. The sensor disclosed by the invention is light, thin and soft, capable of being machined into various shapes, and capable of being attached and worn on the surface of the skin as clothes; the sensor and the monitoring system have the advantages of being high in sensitivity, simple to operate, non-invasive, accurate in measurement result, and capable of continuously recording body temperature changes.

A thermal insulating material that is superior to blown-in polyurethane foam that has vertical insulating properties and lateral thermal conducting properties, and is made of alternating layers of aluminum metal foil and insulating foam that causes the temperature of a cold spot to increase at least 3 degrees F. when compared to an equivalent amount of blown-in polyurethane foam. This material is suitable for increasing the temperature of cold spots of the exterior of refrigerator/freezer doors.

The invention relates to a preparation method of a washable and wearable high-sensitivity pressure sensor. The method comprises the steps of carrying out electrostatic spinning on a spinning solutioncontaining a palladium source and PAN, and then carrying out chemical silver plating; and taking an obtained conductive nanofiber membrane electrode as an upper layer and a lower layer, connecting a wire, taking the middle layer as a dielectric layer, and packaging. The sensor is wearable and still has high sensitivity after being washed with water. The method is simple in process, and the obtained sensor is wearable, still has high sensitivity after being washed with water, is light, thin and flexible, is high in precision and high in fatigue resistance, and plays an important role in the field of artificial intelligence.

The invention discloses a heavy-cut double-faced woodworking thickness planer and a processing method thereof. The heavy-cut double-faced woodworking thickness planer structurally comprises a lathe bed assembly, a front worktable assembly, bed legs, a control box, a motor belt tensioning assembly, a lifting transmission assembly, a rear worktable assembly, a rear cover and planer assemblies, wherein the front worktable assembly and the rear worktable assembly are fixed on bed legs and are respectively provided with a front worktable carrier roller and a rear worktable carrier roller, and a pressing roller and a feeding roller assembly are arranged on the lathe bed assembly and are used for conveying timbers; one planer assembly is connected between the front worktable assembly and the rear worktable assembly, the other planer assembly is arranged on the lathe bed assembly, and the planer assemblies are respectively used for planing the upper and lower surfaces of the timbers; the lifting transmission assembly is used for controlling the height, relative to the bed legs, of the lathe bed assembly through the transmission of a lead screw so as to realize the thickness regulation of the planed timbers; and after the planer assemblies are drawn out and plane cutters are replaced, the planer assemblies can be put back, so that processing requirements of different timbers can be conveniently and rapidly met.

A method of manufacturing a heat dissipation device is disclosed. The heat dissipation device manufactured with the method includes two titanium metal sheets, which are subjected to a heat treatment before undergoing mechanical processing, plastic working and surface modification. With these arrangements, the titanium metal sheets can be freely plastically deformed and possess a capillary force, and can therefore be used in place of the conventional copper material to serve as a material for making heat dissipation devices, and the heat dissipation devices so produced can have largely reduced weight and largely improved heat dissipation performance.

There is provided a resin foam sheet low in the apparent density and thin and flexible, and excellent in the stability in winding-up (wind-up stability). The resin foam sheet according to the present invention has an apparent density of 0.03 to 0.30 g/cm³, a compression stress at 50%-compression of not more than 5.0 N/cm², a thickness of not less than 0.05 mm and not more than 0.40 mm, a length of not less than 5 m, and a width of not less than 300 mm. The value determined by the following expression (1) of the resin foam sheet is preferably not more than 25%.

(Thickness Tolerance)/(Central Value of Thicknesses)×100  (1)

The invention belongs to the field of medical equipment, and particularly relates to an intelligent hemostatic device capable of measuring pressure, which comprises a tourniquet, a pressure sensor assembly and a digital display module, the pressure sensor assembly comprises a flexible pressure sensor and a protective sleeve; the digital display module comprises a human-computer interaction unit capable of setting module parameters, a signal processing unit for receiving and processing signals, a microcontroller for controlling the whole device, and a power supply and a power supply managementunit for monitoring the electric quantity. The flexible pressure sensor is ultrathin, good in flexibility, resistant to bending and capable of being bent freely, and devices of different shapes and different sizes can be designed according to different parts of a human body. The flexible pressure sensor has the characteristics of high density, flexibility, lightness, thinness, high fitness and thelike, can accurately detect the pressure of the tourniquet, and effectively solves the technical problems of low-cost real-time accurate measurement of contact interaction force and dynamic pressuredistribution of a narrow contact area of a non-planar interface.

The invention provides a novel explosion-proof flame-retardant belting material for a cable, which comprises the following components in percentage by mass: 70-97% of a flame-retardant rubber materialand 3-30% of a framework material, and the framework material is a flame-retardant fiber mesh material with the strength of more than 25g/denier. The flame-retardant rubber material comprises a halogen-free flame retardant, liquid rubber, a filler, a chain extender and a catalyst. The framework material is controlled to be designed to be a flame-retardant fiber mesh type, good ventilation performance is achieved, air circulation is facilitated, heat generated by the cable in the operation process can be dissipated to the external environment in time, the temperature of the cable is reduced, and the service life of the cable is prolonged. By controlling the mass percentage of the halogen-free flame retardant in the flame-retardant rubber material to be 35-70%, the explosion-proof flame-retardant belting material can be instantly expanded and foamed under the action of open fire, thereby playing a good role in fire prevention and heat insulation on the internal cable and effectively protecting the cable from being damaged by fire accidents.

An array of ultrasonic transducers is formed on a piezoelectric polymer foil. Ultrasonic transducer electrodes are formed on a first side of the foil and a ground layer is formed on a second side of the foil.

The invention relates to the field of heating devices, in particular to a high-temperature graphene heating plate and a preparation method thereof. The high-temperature graphene heating plate comprises a high-temperature graphene heating body, a mica insulating plate frame, a lead and a cover shell, wherein the mica insulating plate frame is formed by combining a mica insulating groove and a micainsulating cover plate arranged on the mica insulating groove, and an internal cavity is formed; the high-temperature graphene heating body is arranged in the internal cavity; the high-temperature graphene heating body comprises a first protection layer, a graphene film layer and a second protection layer which are sequentially arranged from top to bottom; metal current-carrying strips are arranged on the two sides of the second protection layer; one end of the lead is connected to the high-temperature graphene heating body while the other end of the lead penetrates through the mica insulatingplate frame and the cover shell and is connected to an external power supply; and the cover shell coats the outer side of the mica insulating plate frame. The high-temperature graphene heating plateis suitable for being used as a heating component on household appliances and various machine equipment, and has the advantages of being uniform in heating, good in heat stability, long in service life and resistant to high temperature.