METHOD FOR MANUFACTURING FLEXIBLE MEDICAL DEVICE CONDUIT

• US 20080308523A1
• Filed: 06/12/2008
• Published: 12/18/2008
• Est. Priority Date: 06/15/2007
• Status: Abandoned Application

• Current Assignee: Cordis Corporation (Cardinal Health, Inc.), Lifescan Incorporated (Duv Holding Corporation)
• Original Assignee: Cordis Corporation (Cardinal Health, Inc.), Lifescan Incorporated (Duv Holding Corporation)
• Inventors: Krulevitch, Peter, Olson, Lorin P., Cichocki, Frank R. JR.
• Application Number:
  US12/138,147
• Publication Number:
  US 20080308523A1
• Time in Patent Office: Days
• US Class Current: 216/11
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 2005/1587 suitable for being connected to an infusion line after insertion into a patient
• CPC Class Codes: A61M 2205/0266 Shape memory materials
• CPC Class Codes: A61M 25/0009 Making of catheters or other medical or surgical tubes
• CPC Class Codes: A61M 25/0068 Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/3275 being connected to the needle hub or syringe by radially deflectable members, e.g. longitudinal slats, cords or bands
• CPC Class Codes: A61M 5/329 characterised by features of the needle shaft

Abstract

A method for manufacturing a flexible medical device conduit includes forming an elongated framework of flexible material (e.g., Nitinol), and creating a sharp head on a distal end of the elongated strip using, for example, an isotropic etching technique, a stamping technique and/or a coining technique. The method also includes the step of jacketing the elongated framework with a flexible tube such that the flexible tube and the elongated framework define at least one conduit therebetween.

Claims

1. A method for manufacturing a flexible medical device conduit, the method comprising:

forming an elongated framework of flexible material;

creating a sharp head on a distal end of the elongated strip; and

jacketing the elongated framework with a flexible tube such that the flexible tube and the elongated framework define at least one conduit therebetween.

2. The method of claim 1 wherein the flexible material is Nitinol.

3. The method of claim 1 wherein the elongated framework is an elongated strip with a longitudinal axis extending from a distal end to the proximal end of the elongated strip;

and further including the step of;

forming at least one channel in the elongated strip, the at least one channel disposed at least partially parallel to the longitudinal axis; and

wherein the channel and flexible tube define the at least one conduit.

4. The method of claim 3 wherein the steps of forming the at least one channel and creating a sharp head employ an etching technique.

5. The method of claim 3 wherein the steps of forming the at least one channel and creating a sharp head employ at least one of a stamping technique and a coining technique.

6. The method of claim 1 wherein the step of creating a sharp head employs an isotropic etching technique.

7. The method of claim 1 wherein the step of creating a sharp head employs at least one of a stamping technique and a coining technique.

8. The method of claim 1 wherein the step of creating an elongated framework employs a crimping technique.

9. The method of claim 1 wherein the step of creating an elongated framework employs a at least one of a stamping technique and a coining technique.

10. The method of claim 1, wherein the jacketing step includes aligning the flexible tube with at least one shoulder of the sharp head.