摘要:
Inflatable medical devices and methods for making and using the same are disclosed. The devices can be medical invasive balloons, such as those used for transcutaneous heart valve implantation, such as balloons used for transcatheter aortic-valve implantation. The balloons can have high strength, fiber-reinforced walls.
摘要:
An insulating material is fed in and shaped by superposing a plurality of N layers Ci (3) of the insulating material. For each layer Ci, a plurality of ni, axial insulating elements Ei precut from the insulating material is formed, a rough form of the tubular insulating device is formed by using an adhesive to assemble the Ni elements Ei of each layer Ci which are juxtaposed along a plurality of joining zones Ji, so that the plurality of joining zones Ji+1 of a layer Ci+1 is offset relative to the plurality of joining zones Ji, of the adjacent layer Ci. Then, by the adhesive is polymerized, and the tubular element rough form is subjected to a heat treatment. The method is economical and makes it possible to obtain a device of high mechanical strength.
摘要:
A manufacturing process for flexible tube skirts including the steps of providing a multi-layer plastic film, cutting out a strip from the multi-layer plastic film, producing a cylindrical sleeve by rolling-welding the strip, and cutting out the sleeve to the desired length to obtain the tube skirts. The strip is cut out from a multi-layer plastic film which has a symmetrical structure in relation to its median plane, with symmetrical layers having the same thickness and made of the same plastic, having the same chemical composition and the same molar mass.
摘要:
Apparatus and methods are provided for making one or more tubular components of medical catheters or other tubular bodies using a strip of polymer material including a length, a width, and a first surface including a lubricious or other coating or surface modification. The strip is directed adjacent an elongate mandrel, such as beading, such that the length of the strip extends along the mandrel and the coating is disposed towards the mandrel. The strip is rolled at least partially around the mandrel such that the coating or surface modification is disposed inwardly towards the mandrel, and one or more strip-constrainment members are wrapped around the rolled strip. The directing, rolling, and wrapping steps may be substantially continuous to create one or more strip-mandrel-constrainment member subassemblies.
摘要:
The invention relates to a method and a system for folding a textile strip section (2), especially a section of strip labels. Said invention and system are provided with means for improving the folding quality of the strip section (2) and for protecting the system with a heating device (12), for heating the rear side of the strip section before the folding thereof.
摘要:
The present invention includes a method for producing individual folded labels incorporating a radio frequency device, the method comprising the steps of providing a ribbon of labels containing a woven logo or text. A carrier strip with a plurality of radio frequency devices spaced thereon is provided and the plurality of radio frequency devices are joined to the ribbon of labels. The ribbon of labels is then folded so as to form at least one folded portion. The folded ribbon is subjected to sufficient heat and pressure to set the at least one folded portion. The ribbon of labels is subdivided into individual folded labels. The present invention also relates to a label-making apparatus including a dispenser for a carrier strip having a plurality of radio frequency devices disposed thereon at spaced intervals. A mechanism linearly advances a ribbon of labels, the ribbon of labels containing a woven logo or text. Means join the plurality of radio frequency devices with the ribbon of labels. A cutting station subdivides an individual label from the ribbon of labels and plurality of radio frequency devices. A sensor in communication with the linear advance mechanism controls the advance of a length of the ribbon of labels to provide proper spacing between the radio frequency devices, cut-edges and a logo on the label. The sensor can sense the position of the RF device or the logo or text of the ribbon of labels.
摘要:
An isolated tracer includes an elongated tube, a layer of insulation covering the tube, and a layer of tape compressing the insulation to provide a desired conductance rate for the isolated tracer. The isolated tracer is made by passing a pipe concurrently through a funnel-shaped die with a layer of insulation and wrapping tape around the insulation after it leaves the die. The insulation is compressed to a desired amount to provide a desired conductance rate by adjusting tension on the tape as it is wound about the insulation covering the tube.
摘要:
A liquid impervious seam is formed in laminate sheet comprising polyurethane and polyester laminates, the seam being formed with ultrasonic energy and being capable of withstanding repeated sterilizations by autoclaving.
摘要:
A hollow and cylindrical laminated molded product which is constituted by mutually overlapped joining of edge sides in a longitudinal direction of at least one or more elongated laminated articles formed by layered lamination of fiber-reinforced thermoplastic resin plates containing reinforcing fibers of not less than 30% and not more than 85% in volume content, and a method of producing the above-mentioned laminated molded product using a simple molding tool.
摘要:
A method of welding together overlapped edges of porous PTFE sheet materials by applying ultrasonic energy wherein the overlapped edges remain porous after welding. Composite articles made by the welding process are also described.