Medical device having a branch and process for producing the same
AssigneeKawasumi Laboratories, Inc.
InventorTakumi Kawano
Life of this patent
Estimating the term…
Abstract
A process for producing a medical device having a branch includes the steps of: welding a bottom of the tubular member on a mounting surface of a constituent material of a main tube extruded under elevated temperature, welding firmly the bottom of the tubular member to the mounting surface of the main tube while aspirating the constituent material of the main tube from above the tubular member, forming a hole in the mounting surface of the main tube so as to communicate an interior of the tubular member with an interior of the main tube, and cutting the main tube, thereby assembling the medical device having the branch.
Claims6
A medical device having branches, which comprises:
- a first tube formed in a straight form, said first tube being seamless along its length;
- and
- a second tube welded firmly to a mounting surface of said first tube;
- wherein a hole is formed in said first tube so as to communicate with said second tube;
- and
- the outer peripheral surface of said hole is curved toward the mounting surface of said first tube.
Dependencies are inferred from the claim text.