Infusion System Having Filtration Device And Method
AssigneeCook Medical Technologies LLC
InventorsJames Elsesser, Therese J. O'Day
Life of this patent
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Abstract
An infusion system includes an infusion catheter defining a fluid passage extending between a proximal catheter end and a distal catheter end, and having a plurality of infusion ports in communication with the fluid passage and defining an infusion zone. A filtration device is provided which may be retrofitted upon the infusion catheter and includes a filter sleeve coupled to a slidable control sleeve. The filter sleeve is deformable between a first configuration having a radially contracted footprint and a second configuration having a radially expanded footprint, responsive to sliding the control sleeve over the infusion catheter such that the deformable filter sleeve buckles outwardly from the infusion catheter.
Claims20
A filtration device for use in an infusion procedure comprising:
- a rigid control sleeve defining a longitudinal axis and including a proximal control sleeve end, a distal control sleeve end, and a handle coupled with the proximal control sleeve end;
- a deformable filter sleeve coupled to the rigid control sleeve and positioned coaxially therewith, the deformable filter sleeve having an axial length, and a radial footprint inversely correlated with the axial length;
- and
- a stop collar coupled to the deformable filter sleeve and positioned at a spacing distance from the rigid control sleeve, and the axial length of the deformable filter sleeve being defined by the spacing distance such that moving the rigid control sleeve toward the stop collar responsively expands the radial footprint.
An infusion system comprising:
- an infusion catheter defining a fluid passage extending between a proximal catheter end and a distal catheter end, and further having a plurality of infusion ports in communication with the fluid passage and defining an infusion zone;
- and
- a filtration device retrofitted upon the infusion catheter and including a filter sleeve coupled to a slidable control sleeve, the filter sleeve further being coupled to the infusion catheter proximal to the infusion zone, and being deformable between a first configuration having a radially contracted footprint and a second configuration having a radially expanded footprint, responsive to sliding the control sleeve over the infusion catheter.
The infusion system of claim 14 wherein the filter sleeve includes an expanded axial length in the first configuration, and a contracted axial length in the second configuration, and wherein the filter sleeve is in the first configuration and is deformable to the second configuration in response to sliding the control sleeve over the infusion catheter towards the stop collar.
A method of performing an infusion procedure on a patient comprising the steps of:
- sliding a filtration device over an infusion catheter to a position at which a deformable filter sleeve of the filtration device is positioned proximal to a distal infusion zone of the infusion catheter;
- coupling the deformable filter sleeve to the infusion catheter;
- and
- expanding a radial footprint of the deformable filter sleeve at least in part by sliding a rigid control sleeve of the filtration device in a distal direction over the infusion catheter.
Dependencies are inferred from the claim text.