Ferrule and enternal tube incorporating a ferrule

• US 5,399,173 A
• Filed: 09/30/1993
• Issued: 03/21/1995
• Est. Priority Date: 12/21/1989
• Status: Expired due to Term

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Medical Innovations Corporation (Kimberly-Clark Corporation)
• Inventors: Decaria, Christine, Fishman, Udi, Parks, Stephen K.
• Primary Examiner(s): Yasko, John D.
• Assistant Examiner(s): CERMAK, ADAM
• Application Number:
  US08/130,166
• Time in Patent Office: 537 Days
• Field of Search: 604/280, 604/283, 604/905, 604/174, 604/175, 604/43-45, 604/264, 604/257, 604/282, 285/177, 16/2, 16/18
• US Class Current: 604/533
• CPC Class Codes: A61J 15/00 Feeding-tubes for therapeutic purposes
• CPC Class Codes: A61J 15/0026 Parts, details or accessories for feeding-tubes external tubes from medical containers to a connector outside of the body A61M39/08
• CPC Class Codes: A61J 15/0042 inflatable
• CPC Class Codes: A61M 2039/1027 Quick-acting type connectors
• CPC Class Codes: A61M 2039/1033 Swivel nut connectors, e.g. threaded connectors, bayonet-connectors
• CPC Class Codes: A61M 2039/1083 having a plurality of female connectors, e.g. Luer connectors
• CPC Class Codes: A61M 2039/1088 having a plurality of male connectors, e.g. Luer connectors
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014

Abstract

A ferrule is provided which comprises an inner wall defining a conduit extending between an inlet opening and an outlet opening; a first taper lock surface is defined by a first region of the inner wall for forming a taper lock with a first connector portion having first dimensions; and a second taper lock surface is defined by a second region of the inner wall for forming a taper lock with a second connector portion having second dimensions.

Claims

1. For use in a feeding tube formed from flexible material, a ferrule comprising:

an inner wall formed from a hard substantially nondeformable material which defines a conduit extending along a central axis between an inlet opening and an outlet opening;

a first taper lock surface defined by a first region of said inner wall which is inclined relative to the central axis so as to be dimensioned as a first luer adapted for connection with a first connector portion having first dimensions corresponding to the first luer; and

a second taper lock surface defined by a second region of said inner wall which is inclined relative to the central axis so as to be dimensioned as a second luer adapted for connection with a second connector portion having second dimensions corresponding to the second luer.

2. The ferrule of claim 1 and further including a third taper lock surface defined by a third region of said inner wall which is inclined relative to the central axis so as to be dimensioned as a third luer adapted for connection with a third connector portion having third dimensions corresponding to the third luer.

3. The ferrule of claim 1 wherein:

said first region of said inner wall defines a first segment of the conduit which has a diameter that decreases with increasing distance form the inlet opening; and

said second region of said inner wall defines a second segment of the conduit which has a diameter that decreases with increasing distance from the inlet opening.

4. The ferrule of claim 1 wherein:

said first region of said inner wall has a circular circumference about the central axis; and

said second region of said inner wall has a circular circumference about the central axis.

5. The ferrule of claim 1 wherein:

said first taper lock surface and said second taper lock surface are aligned along the central axis of the conduit; and

said first taper lock surface is disposed closer to the inlet opening than the second taper lock surface.

6. The ferrule of claim 1 further including gripping means for gripping the feeding tube.

7. The ferrule of claim 6 wherein said gripping means includes at least two outwardly extending annular ribs.

8. For use in a feeding tube formed from a flexible material, a ferrule comprising:

an inner wall formed from a hard substantially nondeformable material which defines a conduit extending along a central axis between an inlet opening and an outlet opening;

a first taper lock surface defined by a first region of said inner wall which is inclined relative to the central axis so as to be dimensioned as a first luer adapted for connection with a first connector portion having first dimensions corresponding to the first luer; and

a second taper lock surface defined by a second region of said inner wall which is inclined relative to the central axis so as to be dimensioned as a second luer adapted for connection with a second connector portion having second dimensions corresponding to the second luer; and

wherein said first region of said inner wall defines a first segment of the conduit which has a diameter that decreases with increasing distance from the inlet opening; and

wherein said second region of said inner wall defines a second segment of the conduit which has a diameter that decreases with increasing distance from the inlet opening.

9. The ferrule of claim 8 and further including:

a third taper lock surface defined by a third region of said inner wall which is inclined relative to the central axis so as to be dimensioned as a third luer adapted for connection with a third connector portion having third dimensions corresponding to the third luer;

wherein said third region of said inner wall defines a third segment of the conduit which has a diameter that decreases with increasing distance from the inlet opening.

10. The ferrule of claim 9 wherein said first taper lock surface is disposed closer to the inlet opening than said second taper lock surface and said second taper lock surface is disposed closer to the inlet opening than said third taper lock surface.

11. The ferrule of claim 8 and further including gripping means for gripping the feeding tube.

12. The ferrule of claim 11 wherein said gripping means includes at least two outwardly extending annular ribs.

13. For use in a feeding tube formed from a flexible material, a ferrule comprising:

an inner wall formed from a hard substantially nondeformable material which defines a conduit extending along a central axis between an inlet opening and an outlet opening;

a first taper lock surface defined by a first region of said inner wall which is inclined relative to the central axis so as to be dimensioned as a first luer adapted for connection with a first connector portion having first dimensions corresponding to the first luer; and

a second taper lock surface defined by a second region of said inner wall which is inclined relative to the central axis so as to be dimensioned as a second luer adapted for connection with a second connector portion having second dimensions corresponding to the second luer;

a third taper lock surface defined by a third region of said inner wall which is included relative to the central axis so as to be dimensioned as a third luer adapted for connection with a third connector portion having third dimensions corresponding to the third luer;

wherein said first region of said inner wall defines a first segment of the conduit which has a diameter that decreases with increasing distance from the inlet opening;

wherein said second region of said inner wall defines a second segment of the conduit which has a diameter that decreases with increasing distance from the inlet opening; and

wherein said third region of said inner wall defines a third segment of the conduit which has a diameter that decreases with increasing distance from the inlet opening.

14. The ferrule of claim 13 further including gripping means for gripping the feeding tube.

15. A feeding device comprising:

an elongated tube formed from a flexible material;

an inlet end portion formed from the flexible material and integrally connected to the elongated tube and defining an inlet port opening; and

a ferrule disposed within said inlet end portion said ferrule including,

an inner wall formed from a hard substantially nondeformable material which defines a conduit extending along a central axis between an inlet opening and an outlet opening;

a first taper lock surface defined by a first region of said inner wall which is inclined relative to the central axis so as to be dimensioned as a first luer adapted for connection with a first connector portion having first dimensions corresponding to the first luer; and

a second taper lock surface defined by a second region of said inner wall which is inclined relative to the central axis so as to be dimensioned as a second luer adapted for connection with a second connector portion having second dimensions corresponding to the second luer.

16. The feeding device of claim 15 further including at least one annular protrusion integrally formed in the inlet end portion and extending inwardly from the inlet end portion between the port opening and the inlet opening of said ferrule.

17. The feeding device of claim 15 wherein said ferrule further includes gripping means for gripping the inlet end portion.

18. The feeding device of claim 15 and further including a third taper lock surface defined by a third region of said inner wall which is inclined relative to the central axis so as to be dimensioned as a third luer adapted for connection with a third connector portion having third dimensions corresponding to the third luer.

19. The feeding device of claim 15 wherein:

said first region of said inner wall defines a first segment of the conduit which has a diameter that decreases with increasing distance from the inlet opening; and

said second region of said inner wall defines a second segment of the conduit which has a diameter that decreases with increasing distance from the inlet opening.

20. The feeding device of claim 15 wherein:

said first region of said inner wall has a circular circumference about the central axis; and

said second region of said inner wall has a circular circumference about the central axis.