A method and a device for applying a shrink film sleeve to a container is provided. The method includes perforating the shrink film sleeve at predefined intervals, expanding the perforated shrink film sleeve by means of an expansion device, such as an expansion mandrel, conveying the expanded shrink film sleeve along the expansion device by a conveyor roller pair, tearing off the shrink film sleeve at the perforation by means of a downstream dispensing roller pair whose conveying speed is at least temporarily higher than the conveying speed of the conveyor roller pair, and shooting the torn-off shrink film sleeve onto the container.

A bonded multilayer article including: (a) at least one first layer of a silicone-containing rubber substrate material bonded to (b) at least one second layer of a substrate material bondable to the first layer; wherein at least a portion of the surface of the first layer is activated for adhesion to increase the bond strength of the first layer to a second layer such that the bond strength of the first layer bonded to the second layer is increased; and a process for producing the above bonded multilayer article.

A catheter having a catheter shaft connected to a two-part connecting piece. The catheter shaft includes a first tube forming a first lumen and a second tube disposed at least partially within the first tube to form a second lumen. The first and second tubes terminate proximally at a same longitudinal position. An outer surface of the second tube is welded longitudinally to an inner surface of the first tube to form a weld seam. The connecting piece includes a conical-shaped proximal element with a conical-shaped outer contour that fits into a distal element so that the second lumen seals around the proximal element and sole access to a proximal end of the first lumen is through the distal element.

A balloon catheter is disclosed which allows easier fusion-bonding between an inner tube shaft and an outer tube shaft and in which the inner tube shaft can be prevented from being warped when the inner tube shaft passes through a stenosed site, and a method of manufacturing such a balloon catheter. The balloon catheter includes an inner tube shaft having a first layer and a second layer located on an inner surface side of the first layer. The outer tube shaft is fusion-bonded to the first layer and recessed toward the inner tube shaft side. The first layer is formed of a material having higher optical absorption property than the outer tube shaft and the second layer. The second layer is formed of a material having a melting point higher than that of the first layer.

A tube-in-tube assembled parison for preparation of an elongated medical device. The parison if formed by assembling in tube-in-tube fashion a first tube of orientable polymer material and a second tube formed of orientable polymer material disposed around the first tube, with an adhesive tie layer disposed between the first and second tubes. The tubes are brought into contact to form a unitary parison. The adhesive may allow movement between the polymer layers during balloon blowing. The first tube, or the second tube, or both, may have been longitudinally pre-stretched after formation thereof but before assembly of the parison.

A catheter having a catheter shaft connected to a two-part connecting piece. The catheter shaft includes a first tube forming an inflation lumen and a second tube disposed at least partially within the first tube to form a second lumen. The first tube and the second tube terminate proximally at a same longitudinal position. An outer surface of the second tube is welded longitudinally to an inner surface of the first tube to form a weld seam. The connecting piece includes a channel through a body of the connecting piece extending to and in fluid communication with the inflation lumen and a conical-shaped proximal section or element with a conical-shaped outer contour that fits into a distal element so that the second lumen seals around the proximal element and sole access to a proximal end of the inflation lumen is through the distal element.

A method for joining at least a first and a second component of a catheter using a clamping tool and heat treatment, without the use of heat shrink tubing. A device for joining at least two catheter components of a catheter includes or consists of: a clamping tool, a heating device, and optionally a cooling device. A (heat shrink tubing-free) catheter or catheter part, preferably a guide wire exit port, can be obtained by joining of at least two catheter components of the catheter by using the device or and/or the method.