Nasal hemostatic device
First Claim
1. A nasal hemostatic device comprising a flexible tube having a breathing passage therethrough and including proximal and distal ends, said tube adapted for insertion through the vestibulum and into the nasal passage, said tube including first inner and outer annular wall parts adjacent its said distal end and second inner and outer annular wall parts adjacent its said proximal end, said first inner and outer wall parts being spaced from said second inner and outer wall parts, said first outer wall part being expandable and defining in conjunction with said first inner wall part a first chamber, said second outer wall part being expandable and definining in conjunction with said second inner wall part a second chamber, conduit means communicating with said first and second chambers and adapted to connect to a fluid source, said conduit means for introducing fluid simultaneously and at controlled rates into said first and second chambers to cause the expansion of said first and second wall parts, and a removable sleeve means encircling said tube at one of said first and second outer wall parts for preventing the expansion of said one outer wall part against the nasal passage when said device is located in said nasal passage.
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Abstract
A nasal hemostatic device, including a flexible tube having a breathing passage therethrough. The end portions of the tube include expandable annular wall parts which, when the tube is inserted through a nostril and into a nasal passage, are expanded so as to engage selected internal parts of the nose and thus form a hemostatic seal.
243 Citations
6 Claims
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1. A nasal hemostatic device comprising a flexible tube having a breathing passage therethrough and including proximal and distal ends, said tube adapted for insertion through the vestibulum and into the nasal passage, said tube including first inner and outer annular wall parts adjacent its said distal end and second inner and outer annular wall parts adjacent its said proximal end, said first inner and outer wall parts being spaced from said second inner and outer wall parts, said first outer wall part being expandable and defining in conjunction with said first inner wall part a first chamber, said second outer wall part being expandable and definining in conjunction with said second inner wall part a second chamber, conduit means communicating with said first and second chambers and adapted to connect to a fluid source, said conduit means for introducing fluid simultaneously and at controlled rates into said first and second chambers to cause the expansion of said first and second wall parts, and a removable sleeve means encircling said tube at one of said first and second outer wall parts for preventing the expansion of said one outer wall part against the nasal passage when said device is located in said nasal passage.
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2. The hemostatic device of claim 1 wherein said sleeve means encircles said tube at said second outer wall part for preventing the expansion of said second outer wall part against the nasal passage when said device is located in said nasal passage.
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3. The hemostatic device of claim 1 wherein said second outer wall part is shiftable between a collapsed position and an expanded position, said sleeve means being snugly fitted about said outer wall part in its collapsed position.
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4. The hemostatic device of claim 3 wherein said sleeve is formed of a shape-retaining substantially nonexpandable material.
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5. The hemostatic device of claim 1 wherein said sleeve means extends the length of said second outer wall part and has one end located adjacent the proximate end of said tube and its other end located adjacent said first outer wall part, said other sleeve means end being defined by an inturned annular lip.
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6. The hemostatic device of claim 5 wherein said one sleeve means end is flared.
Specification