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US 2019/0167946 A1Published application
Catheter having an expandable lumen and method of manufacture
AssigneeCovidien LP
InventorMichael Sansoucy
Life of this patent
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Abstract
A single or multiple lumen catheter is disclosed which includes an expandable lumen. The expandable lumen is movable from a collapsed or sealed configuration to an open or expanded configuration. In the open configuration, the expandable lumen is dimensioned to receive a guidewire or stylet or facilitate the introduction of fluids into a patient.
Claims8
A method of manufacturing a multi-lumen catheter, the method comprising the following steps:
- i) extruding a catheter body having a first lumen and at least one additional lumen, the catheter body being formed of a first material having a first melting temperature;
- providing a second material on an inner surface of the first lumen, the second material having a melting temperature greater than the first material;
- directing a fluid through the at least one additional lumen to move the first lumen to a collapsed configuration;
- melting the first material without melting the second material while the first lumen is in the collapsed configuration;
- and
- cooling the first material to allow the first material to set with the first lumen in the collapsed configuration.
3 more elements
A method of manufacturing a multi-lumen catheter, the method comprising the following steps:
- i) extruding a catheter body having a first lumen, a second lumen, and a third lumen positioned between the first and second lumens and extending through a septum of the catheter body, the catheter body being formed of a first material having a first melting temperature;
- providing a layer of second material on an inner surface of the catheter body defining the first and second lumens, the second material having a melting temperature lower than the first material;
- directing a fluid through the first and second lumens to move the third lumen to a collapsed configuration;
- melting the second material without melting the first material while the third lumen is in the collapsed configuration;
- and
- cooling the second material to allow the second material to set with the third lumen in the collapsed configuration.
3 more elements
A method of manufacturing a multi-lumen catheter, the method comprising the following steps:
- i) extruding a catheter body from a first material, the catheter body having a first lumen, a second lumen, and a septum positioned between the first and second lumens;
- and
- ii) positioning a flat tube extending longitudinally through the septum during the extrusion step.
Dependencies are inferred from the claim text.