Medical catheter assembly including a balloon bolster

摘要

A medical catheter assembly including either a reinforced balloon bolster or the combination of a balloon bolster and a wire-basket bolster. According to one embodiment, the medical catheter assembly is a low-profile replacement PEG device comprising a feeding tube, an external bolster, an end cap and an internal bolster. The internal bolster comprises a first expandable structure and a second expandable structure. In one embodiment, the first expandable structure is a balloon and the second expandable structure comprises reinforcing members. In another embodiment, the first expandable structure is a balloon and the second expandable structure is a wire basket bolster. The feeding tube has a feeding lumen and an inflation lumen, extending parallel longitudinally. The external bolster is fixed to the external end of the feeding tube and has a feeding lumen aligned with that of the tube and an inflation lumen aligned with that of the tube.

主权项

1. A method for placing a feeding tube in a patient, comprising:
inserting a feeding tube to a target location within one of a stomach and a jejunum of the patient, the feeding tube comprising:
a catheter having a proximal end, a distal end, and a longitudinal axis;a balloon bolster coupled to a distal portion of the catheter; anda wire-basket bolster adjacent an inner surface of the balloon bolster; inflating the balloon bolster from a first insertion configuration to a first expanded configuration to secure the distal end of the catheter at the target location; and after inflating the balloon bolster, moving an actuating mechanism from a first position to a second position such that the wire-basket bolster expands from a second insertion configuration to a second expanded configuration.