US12594411B2 - Apparatus and Method for Joining Metal Sleeve onto Tube for Catheters
Summary
USPTO granted patent US12594411B2 to Best Medical International, Inc. covering an apparatus and process for joining metal or ceramic sleeves onto flexible tubular members for catheter applications. The invention uses friction-based material joining with rotational heating to create integral seals. The patent protects the assignee's manufacturing process for medical catheters and flexi needles.
What changed
USPTO granted patent US12594411B2 to Best Medical International, Inc., protecting a material joining process and apparatus for securely attaching metal or ceramic cap members to flexible tubular members used in catheter and medical needle applications. The patent covers a friction-based joining method where a holding member rotates while maintaining the tubular member in frictional engagement with the cap, melting or softening a predetermined portion of the tube's distal end to form an integral join.
Manufacturers of catheters, medical tubing assemblies, and related devices should review this patent when developing or modifying metal-sleeve joining processes. The patent's broad claims covering the joining apparatus and resulting catheter structures may affect product development strategies and manufacturing process choices for medical device producers.
Archived snapshot
Apr 17, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Apparatus and method for joining metal sleeve onto a tube
Grant US12594411B2 Kind: B2 Apr 07, 2026
Assignee
Best Medical International, Inc.
Inventors
Manny R. Subramanian, Rashmi M Amin, Stephen Bettencourt
Abstract
A process, apparatus and a catheter and a flexi needle for medical applications formed by the process of selecting a tubular flexible member and a metal/ceramic cap member to be securely joined to the tubular member, placing the cap member in engaging relation with a holding member of a material joining device, securing the tubular member on a positioning member of the material joining device, positioning a distal end of the tubular member in engaging relation with an end of the cap member positioned in the holding member, and rotating the holding member and maintaining the tubular member in frictionally engaging relation with the cap member to melt or soften a predetermined portion of the distal end of the tubular member engaged with the cap member to integrally join a predetermined portion of the distal end of the tubular member within the cap member forming a joined composite member.
CPC Classifications
A61M 39/1055 A61M 2207/10 A61M 2039/0009 A61M 39/12 B23K 20/12
Filing Date
2017-08-21
Application No.
15682429
Claims
25
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