Tracheal cannulas and stents
First Claim
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1. A tracheal cannula comprising:
- A. a hollow tube having(i) a first open end for insertion within the trachea of a mammal through a tracheotomy incision;
(ii) a second open end for communication with the atmosphere outside said trachea, said second open end being adapted by size and configuration to be closed in a fluid seal; and
(iii) a tube body between the open ends; and
B. closure means integral with said hollow tube and having;
(i) a severable stem frangibly attached to said hollow tube at a point adjacent to said second open end;
(ii) a plug adapted by size and configuration to fit in said second open end to form a fluid seal therewith; and
(iii) handle means for connecting said plug to said stem and for gripping the closure means, said handle means including a perforation adapted by size, and configuration to fit over said tube to hold the closure means on said tube body after separation from said tube, said handle means having a length selected to allow said plug to be inserted in said second open end without separating said stem from said tube.
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Abstract
Disclosure is made of an improvement in the T-shaped tracheal stents and in the tracheal cannulas of the prior art, permitting one to conveniently have a complete and unitary unit including a closure member affixed to the device of the invention. Unidirectional retention sleeves are also described, which may be used in conjunction with the cannulas and the stents of the invention.
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Citations
15 Claims
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1. A tracheal cannula comprising:
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A. a hollow tube having (i) a first open end for insertion within the trachea of a mammal through a tracheotomy incision; (ii) a second open end for communication with the atmosphere outside said trachea, said second open end being adapted by size and configuration to be closed in a fluid seal; and (iii) a tube body between the open ends; and B. closure means integral with said hollow tube and having; (i) a severable stem frangibly attached to said hollow tube at a point adjacent to said second open end; (ii) a plug adapted by size and configuration to fit in said second open end to form a fluid seal therewith; and (iii) handle means for connecting said plug to said stem and for gripping the closure means, said handle means including a perforation adapted by size, and configuration to fit over said tube to hold the closure means on said tube body after separation from said tube, said handle means having a length selected to allow said plug to be inserted in said second open end without separating said stem from said tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An assembly, which comprises;
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A. A tracheal cannula, which comprises a hollow tube having (i) a first open end for insertion within the trachea of a mammal through a tracheotomy incision; (ii) a second open end for communication with the atmosphere outside of said trachea, said second open end being adapted by size and configuration to be closed in a fluid seal with a closure means; and (iii) a tube body between the open ends, having a smooth outer tube surface and an inner tube surface defining an interior lumen traversing the tube body from first end to second end; and (B) a closure frangibly connected to said tube, means adapted by size and configuration to close and form a fluid seal with the second open end of the hollow tube, said closure means having handle means for gripping the closure means, said handle means being a perforated member, said perforation being adapted by size and configuration to receive therein in a frictional fit, the tube body. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification