Patent ID: 7226649

Claim:
A medical fluids delivery assembly comprising: a container defining a sealed interior, the sealed interior configured to store a therapeutic fluid; and a laser-weldable non-PVC tubing having a void-free sidewall comprising a polymer blend of: a first component of a material not thermally responsive to a laser beam and selected from the group consisting of polyolefins, ethylene and lower alkyl acrylate copolymers, ethylene and lower alkyl substituted alkyl acrylate copolymers, ethylene vinyl acetate copolymers, polybutadienes, polyesters, polyamides, and styrene and hydrocarbon copolymers, and a second component of a laser responsive material having low solubility in aqueous medium and being sufficiently thermally responsive to exposure to a laser beam having a wavelength within a range from about 700 nm to about 1500 nm to melt a portion of the sidewall upon exposure to the laser beam for a short period of time; wherein the laser-weldable tubing is configured to sealingly couple to the container upon exposure to the laser beam to provide a fluid connection between the sealed interior and an interior of the laser weldable tubing.