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US 6,319,248 B1Granted
Spray catheter
AssigneeCryoCath Technologies Inc.
InventorDaniel Nahon
Life of this patent
Estimating the term…
Abstract
A spray catheter includes a flexible member having a spray tip and a fluid path through the flexible member to the spray tip. The catheter can be deformable and may include a mechanism for varying the spray geometry of the spray tip.
Claims14
A spray catheter comprising:
- an elongate flexible member having a proximal and a distal end;
- a spray tip formed at the distal end of the elongate flexible member, the spray tip having a centerpoint and a single opening, the opening being offset from the centerpoint of the spray tip;
- and
- a coolant fluid path through the elongate flexible member to the spray tip, wherein a coolant is flowed through the fluid path and expelled from the opening to provide a spray pattern offset from the centerpoint of the single opening.
1 more element
A spray catheter, comprising:
- an elongate flexible member having a proximal and a distal end;
- a spray tip formed at the distal end of the elongate flexible member, the spray tip having an opening;
- a first lumen disposed within the flexible member and in fluid communication with the opening to form a coolant fluid path,
- a second lumen disposed within the flexible member;
- and
- a biopsy channel formed at the distal end of the elongate flexible member and in communication with the second lumen of the flexible member,
- wherein a biopsy can be performed simultaneously with a cryo-treatment procedure.
4 more elements
A spray catheter, comprising:
- an elongate flexible member having a proximal and a distal end;
- a spray tip formed at the distal end of the elongate flexible;
- a coolant fluid path through the elongate flexible member to the spray tip, wherein coolant is expelled from the spray tip;
- and
- means for varying a spray geometry of the spray tip,
- wherein the means for varying spray geometry includes a plurality of overlapping fan-like members.
3 more elements
A spray catheter, comprising:
- an elongate flexible member having a proximal and a distal end and a plurality of lumens disposed within the flexible member, each of the plurality of lumens defining a separate coolant flow path from the proximal end of the flexible member to the distal end of the flexible member,
- a spray tip formed at the distal end of the elongate flexible member, the spray tip having a plurality of openings wherein each of the plurality of openings is in fluid communication with one of the plurality of lumens such that each of the openings forms a separate fluid outlet;
- and
- further comprising a coolant, wherein the coolant is passed through the coolant flow paths to control a cooling effect at the spray tip, wherein the coolant is a gas.
1 more element
Dependencies are inferred from the claim text.