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US 2025/0100202 A1Published application
Extruder for hybrid microcatheter
AssigneeBalt Extrusion
InventorLéopold PLOWIECKI
Life of this patent
Estimating the term…
Abstract
An extruder for hybrid microcatheters comprises an extrusion die, a commuter element and several resin sources, the commuter clement allowing for resin selection.
Claims9
An extruder for thermoplastic hybrid microcatheters, the extruder comprising:
- an extrusion die comprising a die member and a mandrel, the mandrel and the die member collectively defining an extrusion die axis;
- at least two resin sources;
- and
- a commuter element abutting the die member and defining at least one inflow channel having an opening on the mandrel, the commuter element slidable on the extrusion die such that resin from one resin source selected from the at least two resin sources is flowable to the die member through an extrusion channel delimited by the die member, the mandrel and the opening of the inflow channel, the extrusion channel and the inflow channel together have a volume less than 20 mm3, and the mandrel defines a central cavity extending in an axial direction along the extrusion die axis.
1 more element
A process of extruding a microcatheter, the process comprising:
- flowing a first resin from a first source to a die member via a commuter element in a first position abutting the die member;
- extruding the first resin along an extrusion axis defined by the die member and a mandrel with the mandrel defining a central cavity in the die member, extrusion of the first resin forming a first predetermined length of the microcatheter;
- sliding the commuter element from the first position to a second position abutting the die member;
- flowing a second resin from a second source to the die member via the commuter element in the second position;
- and
- extruding the second resin through the die member along the extrusion axis, extrusion of the second resin forming a second predetermined length of the microcatheter.
3 more elements
Dependencies are inferred from the claim text.