Component for medical circuit

Patent metadata

Field	Value
Publication number	US-11065414-B2
Application number	US-201816056176-A
Country	US
Kind code	B2
Filing date	Aug 6, 2018
Priority date	May 6, 2011
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A medical tube has a tube wall defining a passageway for transportation of gases and further has a first end and a second end. At least one end of the medical tube comprises one or more of a pre-formed pneumatic port component, a pre-formed electrical port component, and a pre-formed sensor port component. A cuff is over-moulded about and thereby connects the pneumatic port component, the electrical port component, and/or the sensor port component and at least a portion of the tube end.

First claim

What is claimed is:

1. A medical comprising:
a tube wall defining a passageway for transportation of gas and having a first end and a second end, the passageway providing for fluid communication between the first end and the second end,
wherein at least one of the first end and the second end comprises:
a cuff over-moulded about one or more first preformed components, one or more second preformed components, and at least a portion of the tube wall, wherein at least a portion of an interior surface of the cuff is in fluid communication with the passageway,
such that in use, the one or more first preformed components are in fluid communication with the passageway, the one or more first preformed components configured for fluid connection with one or more further components of a breathing circuit, and the one or more second preformed components are receivable of one or more auxiliary medical tube appliances,
wherein the one or more first preformed components and the one or more second preformed components are formed from a relatively rigid material, and
wherein the cuff is formed of a material relatively more pliable than that of the one or more first preformed components and the one or more second preformed components.

2. The medical tube of claim 1 , wherein the one or more first preformed components are spaced apart from the at least a portion of the tube wall along a longitudinal axis of the medical tube to form a gap therebetween, and wherein the cuff extends across the gap and connects the one or more first preformed components and the tube wall.

3. The medical tube of claim 1 , wherein the one or more first preformed components comprises a pneumatic port, the pneumatic port providing for pneumatic connection with the at least one of the first end and the second end of the tube wall.

4. The medical tube of claim 1 , wherein the one or more second preformed components comprises one or more locators extending from the one or more second preformed components for attachment to the at least one of the first end and the second end of the tube wall.

5. The medical tube of claim 1 , wherein the one or more second preformed components comprises a port, the port receivable of the one or more auxiliary medical tube appliances.

6. The medical tube of claim 1 , wherein the one or more auxiliary medical tube appliances is a sensor for sensing one or more characteristics of gas in the passageway.

7. The medical tube of claim 1 , wherein the one or more second preformed components comprises a sensor port, the sensor port receivable of a sensor for sensing one or more characteristics of gas in the passageway.

8. The medical tube of claim 1 , wherein the one or more auxiliary medical tube appliances is an electrical supply for one or more electrically powered heaters associated with the passageway.

9. The medical tube of claim 1 , wherein the cuff forms a pneumatic seal about the at least one of the first end and the second end of the tube wall and between the one or more first preformed components and the one or more second preformed components, whilst maintaining fluid connection between the one or more first preformed components and the at least one of the first end and the second end of the tube wall.

10. The medical tube of claim 1 , wherein no intermediate layer is positioned between the cuff and the at least a portion of the tube wall, such as for preventing direct contact between the cuff and the at least portion of the tube wall.

11. The medical tube of claim 1 , wherein the cuff is formed of a material having a lower relative melting point than the material of the one or more first preformed components, the one or more second preformed components, and the tube wall.

12. The medical tube of claim 1 , wherein at least a portion of the one or more second preformed components is located longitudinally intermediate of the at least one of the first end and the second end of the tube wall and the one or more first preformed components.

13. The medical tube of claim 1 , wherein the one or more first preformed components are substantially axially aligned with the passageway such that pneumatic connection between the one or more first preformed components and the passageway is provided.

14. The medical tube of claim 1 , wherein the one or more second preformed components comprises a sensor port and an electrical port as a single pre-moulded component.

15. The medical tube of claim 1 , wherein an interior of the passageway is of a smooth linear surface.

16. The medical tube of claim 1 , wherein the one or more second preformed components comprises an electrical port, the electrical port receivable of an electrical connector for providing an electrical supply to one or more electrically powered heaters associated with the passageway.

17. The medical tube of claim 16 , wherein the one or more electrically powered heaters are located substantially within the passageway.

18. The medical tube of claim 16 , wherein the one or more electrically powered heaters are located substantially about an exterior surface of the tube wall.

19. The medical tube of claim 16 , wherein the one or more electrically powered heaters are one or more heater wires.

20. A medical tube comprising:
a tube wall defining a passageway for transportation of gas and having a first end and a second end, the passageway providing for fluid communication between the first end and the second end,
wherein at least one of the first end and the second end comprises:
a preformed pneumatic port component in fluid communication with the passageway, the preformed pneumatic port component configured for fluid connection with one or more further components of a breathing circuit,
a preformed sensor port component receivable of a sensor for sensing one or more characteristics of gas in the passageway,
a cuff over-moulded about the preformed pneumatic port component, the preformed sensor port component and at least a portion of the tube wall,
wherein the preformed pneumatic port component and the preformed sensor port component are formed from a relatively rigid material, and
wherein the cuff is formed of a material relatively more pliable than that of the preformed pneumatic port component and the preformed sensor port component.

21. The medical tube of claim 20 , wherein the preformed pneumatic port component is spaced apart from the at least a portion of the tube wall along a longitudinal axis of the medical tube to form a gap therebetween, and wherein the cuff extends across the gap and connects the preformed pneumatic port component and the tube wall.

22. A medical tube comprising:
a tube wall defining a passageway for transportation of gas and having a first end and a second end, the passageway providing for fluid communication between the first end and the second end,
wherein at least one of the first end and the second end comprises:
a preformed pneumatic port component in fluid communication with the passageway, the preformed pneumatic port component configured for fluid connection with one or more further components of a breathing circuit,
a preformed electrical port component receivable of an electrical connection for providing an electrical circuit to one or more electrical appliances associated with the passageway,
a cuff over-moulded about the preformed pneumatic port component, the preformed electrical port component and at least a portion of the tube wall,
wherein the preformed pneumatic port connector component and

Assignees

• Fisher & Paykel Healthcare Ltd

Inventors

• Coleman Peter Nigel
• Gray Nathan Lee

Classifications

• A61M2207/00

  Methods of manufacture, assembly or production · CPC title

• A61M16/0841

  for sampling · CPC title

• A61M16/0883

  Circuit type · CPC title

• A61M16/1095 Primary

  in the connecting tubes · CPC title

• A61M16/0875

  Connecting tubes · CPC title