Tracheostomy tube

• US 8,186,349 B2
• Filed: 10/05/2005
• Issued: 05/29/2012
• Est. Priority Date: 10/05/2004
• Status: Expired due to Fees

• Current Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Original Assignee: Covidien AG (Medtronic Plc)
• Inventors: Moriyama, Masaki, Kusunoki, Takao
• Primary Examiner(s): DOUGLAS, STEVEN O
• Application Number:
  US11/576,802
• Publication Number:
  US 20080163870A1
• Time in Patent Office: 2,428 Days
• Field of Search: 12820714-20718, 128/207.29, 606/108, 606194-195, 600/184, 604/96.01
• US Class Current: 128/207.14
• CPC Class Codes: A61M 16/0434 Cuffs
• CPC Class Codes: A61M 16/0465 Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters
• CPC Class Codes: A61M 16/0479 above the cuff, e.g. giving access to the upper trachea
• CPC Class Codes: A61M 16/0486 Multi-lumen tracheal tubes
• CPC Class Codes: A61M 16/0488 Mouthpieces; Means for guiding, securing or introducing the tubes guiding or introducing with laryngoscopes A61B1/267; holding devices on the body A61M25/02
• CPC Class Codes: A61M 16/0497 Tube stabilizer

Abstract

To provide a tracheostomy tube which can be easily attached to and detached from an incision site and in which sputum or the like does not readily longer, a tracheostomy tube A includes a lumen body 10 having an airway securing lumen 10b, a connector section 11 formed at the base end portion of the lumen body 10, and a cuff 13 which is formed on the outer circumference of the tip end portion of the lumen body 10 and which can be expanded and contracted. A circumferential wall 10a of the lumen body 10 defines a cuff-expanding lumen 15 which puts the surface portion of the connector section 11 in communication with the inside of the cuff 13. it also defines a suction lumen 14 allowing the surface portion of the connector section 11 to communicate with the surface portion of the lumen body 10. A coating layer exhibiting surface lubricity in moisture is formed on the surface of the tracheostomy tube A and the inner surface of the lumen body 10 in which the airway securing lumen 10b is formed.

Claims

1. A tracheostomy tube comprising:

a lumen body having a circumferential wall which defines an airway securing lumen, the circumferential wall having an inner surface, an outer surface, a base end portion, and a tip end portion, wherein the airway securing lumen extends from the base end portion to the tip end portion;

a connector section having a surface portion, which is formed at the base end portion of the lumen body;

a cuff having an inner surface and an outer surface, which is formed on the outer surface of the tip end portion of the lumen body and which is expandable and contractible;

a cuff-expanding lumen which is formed in the circumferential wall of the lumen body and which allows the surface portion of the connector section to communicate with the inner surface of the cuff; and

a suction tube which is formed in the circumferential wall of the lumen body and which allows the surface portion of the connector section to communicate with the outer surface of the lumen body;

wherein a coating layer exhibiting surface lubricity in moisture is formed on the outer surface of the lumen body, the outer surface of the cuff, and the inner surface of the lumen body in which the airway securing lumen is formed, and wherein the coating layer comprises a fluorine-containing acryl urethane silicon resin.

2. The tracheostomy tube of claim 1 wherein the coating layer comprises a mixture of at least two polymers, wherein the mixture of two polymers exhibits surface lubricity in moisture.

3. The tracheostomy tube of claim 1 wherein the coating layer consists essentially of a mixture of two polymers.

4. The tracheostomy tube of claim 1 wherein the coating layer comprises a mixture of the fluorine-containing acryl urethane silicon resin and at least one other polymer.

5. The tracheostomy tube of claim 4 wherein the coating layer comprises a mixture of the fluorine-containing acryl urethane silicon resin and a methyl vinyl ether maleic anhydride copolymer.

11. The tracheostomy tube of claim 1 wherein the coating layer is formed by applying a mixture including a solvent in which a material of the tracheostomy tube is not more than poorly soluble.

12. The tracheostomy tube of claim 11 wherein the main component of the solvent is alcohol.

6. A tracheostomy tube comprising:

a lumen body having a circumferential wall which defines an airway securing lumen, the circumferential wall having an inner surface, an outer surface, a base end portion, and a tip end portion, wherein the airway securing lumen extends from the base end portion to the tip end portion;

a connector section having a surface portion, which is formed at the base end portion of the lumen body;

a cuff having an inner surface and an outer surface, which is formed on the outer surface of the tip end portion of the lumen body and which is expandable and contractible;

a cuff-expanding lumen which is formed in the circumferential wall of the lumen body and which allows the surface portion of the connector section to communicate with the inner surface of the cuff; and

a suction tube which is formed in the circumferential wall of the lumen body and which allows the surface portion of the connector section to communicate with the outer surface of the lumen body;

wherein a coating layer exhibiting surface lubricity in moisture is formed on the outer surface of the lumen body, the outer surface of the cuff, and the inner surface of the lumen body in which the airway securing lumen is formed, and wherein the coating layer comprises a polyether-block-amide.

7. The tracheostomy tube of claim 6 wherein the coating layer comprises a mixture of the polyether-block-amide and at least one other polymer.

8. The tracheostomy tube of claim 7 wherein the coating layer comprises a mixture of the polyether-block-amide and a methyl vinyl ether maleic anhydride copolymer.

9. A tracheostomy tube comprising:

a lumen body having a circumferential wall which defines an airway securing lumen, the circumferential wall having an inner surface, an outer surface, a base end portion, and a tip end portion, wherein the airway securing lumen extends from the base end portion to the tip end portion;

a connector section having a surface portion, which is formed at the base end portion of the lumen body;

a cuff having an inner surface and an outer surface, which is formed on the outer surface of the tip end portion of the lumen body and which is expandable and contractible;

a cuff-expanding lumen which is formed in the circumferential wall of the lumen body and which allows the surface portion of the connector section to communicate with the inner surface of the cuff; and

a suction tube which is formed in the circumferential wall of the lumen body and which allows the surface portion of the connector section to communicate with the outer surface of the lumen body;

wherein a coating layer exhibiting surface lubricity in moisture is formed on the outer surface of the lumen body, the outer surface of the cuff, and the inner surface of the lumen body in which the airway securing lumen is formed, and wherein the coating layer comprises a mixture including polyisocyanate and a mixture including polyvinyl pyrrolidone.

10. The tracheostomy tube of claim 9 wherein the coating layer further comprises polyurethane.