Tubing fitting

• US 7,523,967 B2
• Filed: 10/26/2005
• Issued: 04/28/2009
• Est. Priority Date: 12/13/2004
• Status: Active Grant

• Current Assignee: Alcon Incorporated
• Original Assignee: Alcon Incorporated
• Inventors: Steppe, Dennis L.
• Primary Examiner(s): BOCHNA, DAVID
• Application Number:
  US11/259,554
• Publication Number:
  US 20080007045A1
• Time in Patent Office: 1,280 Days
• Field of Search: 285/401, 285/402, 285/376, 604/905, 604/533, 604/264, 604/284
• US Class Current: 285/401
• CPC Class Codes: A61M 2205/6045 having complementary physical shapes for indexing or registration purposes
• 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
• CPC Class Codes: Y10S 604/905 Aseptic connectors or couplings, e.g. frangible, piercable

Abstract

A tubing fitting for use in microsurgery including a female tubing fitting and a male tubing fitting. The female tubing fitting has an external surface with a pair of opposing projections disposed thereon and an internal bore. The male tubing fitting has a second internal bore and a collar at least partially surrounding the second internal bore. The collar has an internal surface with two pairs of opposing sloping ramps disposed thereon. The pairs of opposing sloping ramps are arranged so as to create a pair of opposing spaces for removably receiving the pair of opposing projections.

Claims

1. A tubing fitting for use in microsurgery, comprising:

a female tubing fitting having an external surface with a pair of opposing projections disposed thereon and an internal bore; and

a male tubing fitting having a second internal bore and a collar at least partially surrounding said second internal bore, said collar having an internal surface with two pairs of opposing sloping ramps disposed circumferentially along said internal surface, said pairs of opposing sloping ramps being arranged so as to create a pair of opposing spaces for removably receiving said pair of opposing projections,

wherein when said pair of opposing projections are disposed in said pair of opposing spaces, said male tubing fitting may be sealingly engaged with and locked into said female tubing fitting by rotating said collar.

2. The tubing fitting of claim 1 wherein each of said sloping ramps in each of said pairs of opposing sloping ramps are sloped in an opposite direction.

3. The tubing fitting of claim 1 wherein said internal bore and said second internal bore are fluidly coupled.

4. The tubing fitting of claim 1 wherein said pairs of opposing sloping ramps are arranged so as to create a second pair of opposing spaces for removably receiving said pair of opposing projections.

5. The tubing fitting of claim 4 wherein when said pair of opposing projections are disposed in said second pair of opposing spaces, said male tubing fitting may be sealingly engaged with and locked into said female tubing fitting by rotating said collar.

6. The tubing fitting of claim 5 wherein said internal bore and said second internal bore are fluidly coupled.

7. The tubing fitting of claim 1 wherein said pairs of opposing sloping ramps and said pair of opposing spaces create a geometry that prevent engagement with conventionally sized and shaped luer and CPC fittings.

8. The tubing fitting of claim 1 wherein said tubing fitting is for use in ophthalmic surgery.