Infusion set and/or patch pump having at least one of an in-dwelling rigid catheter with flexible features and/or a flexible catheter attachment

Patent metadata

Field	Value
Publication number	US-2023398288-A1
Application number	US-202318456764-A
Country	US
Kind code	A1
Filing date	Aug 28, 2023
Priority date	Jan 12, 2009
Publication date	Dec 14, 2023
Grant date	—

Abstract

An infusion set, patch pump, or elements thereof, having an exemplary catheter ( 14 ) provided with one or more channels, grooves and coatings ( 24, 34, 44 ), configured and arranged to provide a degree of strength and flexibility. The catheter ( 14 ) can also have an exemplary flexible union with the hub ( 12 ) having at least one of a ball-and-socket joint ( 66, 68 ), a sliding plate ( 86 ), and a flexible bushing ( 106 ), and which is sealed to allow even further movement of the catheter ( 14 ) while preventing leakage of medication through the junction. In doing so, a number of benefits associated with the use of rigid materials in catheter construction can be provided while at the same time, benefits associated with the use of flexible materials in catheter construction and/or flexible engagement with the hub can also be provided.

First claim

What is claimed is:

1 . A method of making an in-dwelling catheter, comprising the steps of:
heating a polymer to a desired temperature; injection molding an in-dwelling catheter using said heated polymer to form a rigid body portion, at least one a flexible body portion comprising a body wall wherein one or more lengths of said wall are provided with one or more radial openings, axial openings, channels, grooves, or separations, and a sharpened portion at one end thereof; and applying an outer sleeve to at least a portion of said in-dwelling catheter.

2 . A method of making an in-dwelling catheter as claimed in claim 1 , further comprising the step of injection molding the in-dwelling catheter to form a catheter body comprising a plurality of separated axial openings passing through at least a portion of said catheter body.

3 . A method of making an in-dwelling catheter as claimed in claim 1 , further comprising the step of overmolding at least a portion of said in-dwelling catheter with said outer sleeve.

4 . A method of making an in-dwelling catheter as claimed in claim 1 , further comprising the steps of:
extruding said outer sleeve; and assembling said extruded outer sleeve with at least a portion of said in-dwelling catheter.

5 . A method of making an in-dwelling catheter, comprising the steps of:
forming, casting, extruding, injection molding, or machining a solid rod to create a multi-lumen catheter comprising a plurality of separated axial grooves passing over at least a portion of said catheter body; and applying an outer sleeve to at least a portion of said catheter body.

6 . A method of making an in-dwelling catheter as claimed in claim 13 , further comprising the step of overmolding at least a portion of said catheter body with said outer sleeve.

7 . A method of making an in-dwelling catheter as claimed in claim 13 , further comprising the steps of:
extruding said outer sleeve; and assembling said extruded outer sleeve with at least a portion of said catheter body.

8 . A method of making an in-dwelling catheter as claimed in claim 13 , further comprising the step of forming a plurality of grooves on an outer surface of said multi-lumen catheter to produce said lumens between an outer surface of said multi-lumen catheter and an inner surface of said outer sleeve.

9 . A method of forming an in dwelling cannula comprising the step of:
providing a flexible helical coil comprising an axial passage extending from a proximal end of the coil to a distal end of the coil; and covering the flexible helical coil with a watertight sleeve.

10 . The method of claim 17 , further comprising the step of forming a sharpened distal tip.

11 . The method of claim 17 wherein the covering step comprises overmolding the sleeve onto the flexible helical coil.

Assignees

• Becton Dickinson Co

Inventors

• Skutnik Peter
• Horvath Joshua
• Banik Robert
• Searle Gary
• Bene Eric

Classifications

• Y10T29/4998

  Combined manufacture including applying or shaping of fluent material · CPC title

• A61M5/14248 Primary

  of the skin patch type · CPC title

• A61M5/158

  Needles {for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body} · CPC title

• A61M5/46

  having means for controlling depth of insertion · CPC title

• A61M25/0009

  Making of catheters or other medical or surgical tubes · CPC title