Methods are provided for manufacturing disposable diagnostic test elements via laser welding, where the methods include providing, in a stacked or layered arrangement, a base layer, a cover layer, and optionally an intermediate layer, where one of the layers is an absorbing layer and at least one other of the layers is a transparent layer, and where one of the layers includes a coating adapted to interact with a body fluid sample when conducting a test on the resulting test element; directing a laser beam in a weld area through the at least one transparent layer and against the absorbing layer; and fusing the transparent and the absorbing layers together to form the test element, where the coating covers the weld area at least in part and absorbs and/or scatters radiation from the laser beam at least in part. Disposable diagnostic test elements also are provided.

A method of making a flowcell includes bonding a first surface of an organic solid support to a surface of a first inorganic solid support via a first bonding layer, wherein the organic solid support includes a plurality of elongated cutouts. The method further includes bonding a surface of a second inorganic solid support to a second surface of the organic solid support via a second bonding layer, so as to form the flowcell. The formed flowcell includes a plurality of channels defined by the surface of the first inorganic solid support, the surface of the second inorganic solid support, and walls of the elongated cutouts.

A laser joining method and device includes a pressure-applying clamping device, which presses a first and a second workpiece against one another at least after the workpieces have been locally plasticized, and a mask having mask structures, which allow laser light to pass only in the region of the bonding contact faces, wherein at least the workpiece facing the laser source is formed by a three-dimensional molded part, which is not planar at least on the first contour side facing the clamping element and/or on the second contour side facing the second workpiece, and wherein the clamping element, with the bearing side thereof for the first workpiece, is adapted to the first contour side of the first workpiece. The mask structures are created on the bearing side of the clamping element facing the first workpiece or on the second contour side of the first workpiece facing the second workpiece.

The present disclosure relates to a battery module that includes a housing having a first protruding shelf along a first perimeter of the housing, a second protruding shelf along a second perimeter of the housing, where the first and second protruding shelves each include an absorptive material configured to absorb a first laser emission. The battery module also includes an electronics compartment cover configured to be coupled to the housing via a first laser weld, and a cell receptacle region cover configured to be coupled to the housing via a second laser weld. The electronics compartment cover has a first transparent material configured to transmit the first laser emission toward the first protruding shelf and the cell receptacle region cover has a second transparent material configured to transmit the first laser emission or a second laser emission toward the second protruding shelf.

A connection method, in addition to a functional part used in it and to a flame-retardant total system, connects a single- or multilayer functional part (10) to a third component (20). The functional part (10) has functional elements (14, 16) projecting on one side. The functional part (10) is formed at least partially from a material at least partially transparent to laser light. A blocking layer (18) is disposed to be at least partially opaque to laser light such that after passage of the laser light through the functional part (10), the laser light inside the blocking layer (18) generates heat by absorption for melting the functional part (10) and/or the third component (20) to connect them to one another.

In an apparatus for successively making plastic bags, a laser beam irradiator irradiates laser beam onto webs of panel material and a body of zipper material to heat and melt the webs of panel material and the body of zipper material with the laser beam. The webs of panel material and the body of zipper material are fed intermittently at a speed predetermined to be changed by time. The irradiator is controlled on a feedforward control basis for the laser beam to be regulated in amount, the amount being calculated from the speed predetermined, to obtain a calculated value of amount. The laser beam is regulated in accordance with the calculated value to heat and melt the webs of panel material and the body of zipper material uniformly irrespective of the speed being changed.

An example method includes providing a working stack having a first substrate layer, a second substrate layer, and a radiation-absorbing material disposed between the first and second substrate layers. The working stack includes a cavity therein having a designated liquid. A bonding interface is defined between the radiation-absorbing material and at least one of the first substrate layer or the second substrate layer. The bonding interface has a film of the designated liquid. The method also includes directing radiation onto the bonding interface to form a perimeter seal. The perimeter seal separates the cavity from an outer area of the bonding interface. The method also includes directing the radiation onto the outer area of the bonding interface to secure the first and second substrate layers together. The perimeter seal impedes an ingress of bubbles from the outer area into the cavity as the radiation is directed onto the outer area.

The present invention relates to method of manufacturing a fluid guiding assembly for a drug delivery device and to a respective fluid guiding assembly. Said method comprising the steps of: providing a first member having at least one recess in a first surface portion, at least partially filling the recess with a joining component at least partially protruding from the first surface portion of the first member, arranging a second member having a second surface portion adjacent to the first member such that first and second surface portions thereof face towards each other to form an interface area between the first and the second members, wherein the joining component comprises a material different to the material of the first and/or second member wherein at least one channel structure extending along the interface area is formed by at least one deepening of the first member and/or of the second member, selectively providing thermal energy to the joining component to bond together first and second members.

A fluidic device including an inorganic solid support attached to an organic solid support by a bonding layer, wherein the inorganic solid support has a rigid structure and wherein the bonding layer includes a material that absorbs radiation at a wavelength that is transmitted by the inorganic solid support or the organic solid support; and a channel formed by the inorganic solid support and the organic solid support, wherein the bonding layer that attaches the inorganic solid support to the organic solid support provides a seal against liquid flow. Methods for making fluidic devices, such as this, are also provided.

A laser welding apparatus is provides that includes: a support member including a heat generation portion which has a size that is limited to correspond to a size of a welding area of a plurality of plastic components and is made from a material that absorbs a laser beam and generates heat, and which generates heat of a temperature that is equal to or greater than a melting temperature of the plastic components; a laser beam irradiation unit for converging a laser beam to be transmitted through the plurality of plastic components, and irradiating the laser beam toward the heat generation portion through the plurality of plastic components; and a welding controller for causing a laser beam to be irradiated at the heat generation portion using the laser beam irradiation unit to thereby cause the heat generation portion to generate heat, and welding abutting faces of a welding area of the plurality of plastic components with heat that is generated.