초록 ▼

The catheter of the invention generally has component parts made of polymeric materials and a fusion bond between these catheter parts containing a compatibilizing material which enhances the miscibility of the polymeric materials to facilitate the formation of the fusion bond. The catheter parts fo

The catheter of the invention generally has component parts made of polymeric materials and a fusion bond between these catheter parts containing a compatibilizing material which enhances the miscibility of the polymeric materials to facilitate the formation of the fusion bond. The catheter parts formed of polymeric materials may not be sufficiently miscible to readily form a fusion bond. The compatibilizing material increases the miscibility of the catheter parts in the molten state to effect the fusion bond between the polymeric materials. Chemical primer and plasma surface treatments may be used to provide the catheter parts to be bonded with functional groups which improve miscibility with the compatibilizing material.

대표청구항 ▼

[ What is claimed is:] [1.] A catheter assembly, comprising:a) a first catheter part formed of a first polymeric material;b) a second catheter part having a bonded section fusion bonded to the first catheter part, and a nonbonded section, the bonded and nonbonded sections being formed of a blend of

[ What is claimed is:] [1.] A catheter assembly, comprising:a) a first catheter part formed of a first polymeric material;b) a second catheter part having a bonded section fusion bonded to the first catheter part, and a nonbonded section, the bonded and nonbonded sections being formed of a blend of a second polymeric material and a compatibilizing material, the compatibilizing material being a hot melt adhesive fusion bondable to the first and second polymeric materials.