Paranasal ostium finder devices and methods
First Claim
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1. A device for locating and dilating a natural ostium of a maxillary sinus, the device comprising;
- (a) an elongate shaft assembly, comprising;
(i) a substantially rigid straight proximal portion,(ii) a curved distal portion extending from a distal end of the straight proximal portion,(iii) an atraumatic distal tip at the end of the curved distal portion, wherein the curved distal portion has a size and shape to allow passage of the distal portion into a nasal cavity to position the atraumatic distal tip within or near a maxillary sinus ostium, and(iv) an inflation lumen passing through at least part of the shaft assembly; and
(b) at least one expandable dilator coupled with the shaft assembly, wherein the expandable dilator extends from the distal end of the straight proximal portion to a distal end of the curved distal portion and encompasses the curved distal portion therebetween, wherein the expandable dilator is in fluid communication with the inflation lumen;
wherein the atraumatic distal tip comprises a ball-shaped tip for enhancing tactile feedback.
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Abstract
Devices and methods for locating sinus ostia and positioning a guide wire within the sinus ostia. The subject devices include a shaft having a distal end, a proximal end, a curved region located between the distal and proximal ends, and an interior channel, an extensible and retractable guide wire movably mounted within the interior channel and a probe tip joined to the guide wire. Certain devices further include expandable portions for engaging and treating body anatomy.
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Citations
11 Claims
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1. A device for locating and dilating a natural ostium of a maxillary sinus, the device comprising;
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(a) an elongate shaft assembly, comprising; (i) a substantially rigid straight proximal portion, (ii) a curved distal portion extending from a distal end of the straight proximal portion, (iii) an atraumatic distal tip at the end of the curved distal portion, wherein the curved distal portion has a size and shape to allow passage of the distal portion into a nasal cavity to position the atraumatic distal tip within or near a maxillary sinus ostium, and (iv) an inflation lumen passing through at least part of the shaft assembly; and (b) at least one expandable dilator coupled with the shaft assembly, wherein the expandable dilator extends from the distal end of the straight proximal portion to a distal end of the curved distal portion and encompasses the curved distal portion therebetween, wherein the expandable dilator is in fluid communication with the inflation lumen;
wherein the atraumatic distal tip comprises a ball-shaped tip for enhancing tactile feedback. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device for locating and dilating a natural ostium of a maxillary sinus, the device comprising;
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(a) an elongate shaft assembly, comprising; (i) a substantially rigid straight proximal portion, (ii) a curved distal portion extending from a distal end of the straight proximal portion, (iii) an atraumatic distal tip at the end of the curved distal portion, wherein the curved distal portion has a size and shape to allow passage of the distal portion into a nasal cavity to position the distal tip within or near a dilation site in the nasal cavity, and (iv) an inflation lumen passing through at least part of the shaft assembly; and (b) at least one expandable dilator coupled with the shaft assembly, wherein the expandable dilator extends from the distal end of the straight proximal portion and encompasses the curved distal portion, wherein the expandable dilator is in fluid communication with the inflation lumen;
wherein the atraumatic distal tip comprises a ball-shaped tip for enhancing tactile feedback. - View Dependent Claims (9)
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10. A device for locating and dilating a natural ostium of a maxillary sinus, the device comprising;
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(a) an elongate shaft assembly, comprising; (i) a substantially rigid straight proximal portion, (ii) a curved distal portion, wherein the curved distal portion has a size and shape to allow passage of the distal portion into a nasal cavity, and an atraumatic distal tip at the end of the curved distal portion; (iii) an inflation lumen passing through at least part of the shaft assembly; and (b) at least one expandable dilator coupled with the shaft assembly, wherein a portion of the expandable dilator is expandable, wherein the expandable dilator encompasses at least part of the curved distal portion and a portion of the straight proximal portion, wherein the expandable dilator is in fluid communication with the inflation lumen;
wherein the atraumatic distal tip comprises a ball-shaped tip for enhancing tactile feedback. - View Dependent Claims (11)
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Specification