Sinus dilation catheter
AssigneeStryker Corporation
InventorsJohn R. Drontle, Anthony J. Hanson, Paul Lesch
Life of this patent
Estimating the term…
Abstract
A balloon dilation catheter includes a substantially rigid inner guide member and a movable shaft coupled to a balloon that is slidably mounted on the substantially rigid inner guide member. To treat a sinus cavity of a subject using the balloon dilation the substantially rigid inner guide member is advanced into a drainage pathway of the sinus (e.g., frontal recess or maxillary sinus) of the subject via a nasal passageway. The shaft and balloon are advanced in a distal direction over the substantially rigid inner guide member to place the balloon in the drainage pathway. The balloon is inflated to expand or otherwise remodel the drainage pathway.
Claims20
A balloon dilation device, comprising:
- a handle having a proximal end and a distal end;
- an inner guide member that extends distally from the distal end of the handle, wherein the inner guide member comprises a suction lumen extending from a proximal end of the inner guide member to a distal end of the inner guide member, wherein the handle comprises a suction vent port that is in fluid communication with the suction lumen of the inner guide member and operable to control a suction force at the distal end of the inner guide member;
- a shaft defining a first lumen in which the inner guide member is disposed;
- an inflatable balloon coupled to a distal portion of the shaft;
- an inflation lumen that defines a fluid channel between (i) an inflation port coupled to the handle and (ii) an interior of the inflatable balloon;
- a suction port coupled to the handle and configured to couple to a vacuum source,
- a suction tube in the handle and extending proximally from the suction vent port;
- and
- a valve seat in the handle, wherein the suction tube fluidly couples the suction vent port to the valve seat, wherein the valve seat comprises a valve that is configured to prevent aspirate collected at the distal end of the inner guide member from entering the suction tube.
A method of using a balloon dilation device comprising:
- advancing a distal end of an inner guide member of the balloon dilation device transnasally to a sinus cavity, wherein the balloon dilation device comprises:
- a handle having a proximal end and a distal end,
- the inner guide member that extends distally from the distal end of the handle, wherein the inner guide member comprises a suction lumen extending from a proximal end of the inner guide member to a distal end of the inner guide member, wherein the handle comprises a suction vent port that is in fluid communication with the suction lumen of the inner guide member and operable to control a suction force at the distal end of the inner guide member,
- a shaft defining a first lumen in which the inner guide member is disposed,
- an inflatable balloon coupled to a distal portion of the shaft,
- an inflation lumen that defines a fluid channel between (i) an inflation port coupled to the handle and (ii) an interior of the inflatable balloon,
- a suction port coupled to the handle and configured to couple to a vacuum source, a suction tube in the handle and extending proximally from the suction vent port;
- and
- a valve seat in the handle, wherein the suction tube fluidly couples the suction vent port to the valve seat, wherein the valve seat comprises a valve that is configured to prevent aspirate collected at the distal end of the inner guide member from entering the suction tube;
- applying, using a vacuum source, suction to the suction port;
- and
- while applying the suction to the suction port, occluding the suction vent port to increase an amount of suction at the distal end of the inner guide member.
Dependencies are inferred from the claim text.