Lubricated metal articles and assembly containing same

• US 5,185,006 A
• Filed: 12/17/1990
• Issued: 02/09/1993
• Est. Priority Date: 12/17/1990
• Status: Expired due to Fees

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Spielvogel, David E., Williamitis, Victor A.
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): SMITH, CHALIN A
• Application Number:
  US07/628,139
• Time in Patent Office: 785 Days
• Field of Search: 252/9, 528/20-22, 528/31, 528/33, 528/38, 106/287.11, 106/287.14, 106/287.16, 106/36, 604/264-266, 428/450, 428/447, 264/130, 264/131
• US Class Current: 604/265
• CPC Class Codes: A61B 2017/00845 of moving parts with respect to each other
• CPC Class Codes: A61L 29/085 Macromolecular materials
• CPC Class Codes: A61M 25/0045 multi-layered, e.g. coated coating materials A61L29/08
• CPC Class Codes: A61M 5/32 Needles; Details of needles pertaining to their connection with syringe or hub infusion needles A61M5/158; Accessories for bringing the needle into, or holding the needle on, the body A61M5/42, A61M5/46 take precedence; guide needles for catheters A61M25/065; Devices for protection of needles apparatus specially adapted for cleaning or sterilising needles A61M5/001
• CPC Class Codes: C08L 83/04 Polysiloxanes
• CPC Class Codes: C09D 183/06 containing silicon bound to oxygen-containing groups C09D183/12 takes precedence
• CPC Class Codes: C09D 183/08 containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen

Abstract

A metal article has a coating of a noncuring polar lubricant. Preferred articles are of stainless steel and may be cutting devices such as needles, lancets and cannulas or sliding devices such as stylets and guidewires. Preferred noncuring polar lubricants are polysiloxanes terminated with a polar group. Particularly preferred lubricants are aminoalkyl or carboxyalkyl polysiloxanes. The lubricated metal article may be in a sliding relationship with a plastic article such as a catheter-guidewire or a catheter-cannula assembly. The plastic portion of the assembly may also include a lubricant.

Claims

1. An article comprising a metal surface having thereon a coating of a noncuring polysiloxane lubricant substituted with an aminoalkyl group, said polysiloxane lubricant having a viscosity of about 300 to 25,000 centistokes.

2. The article of claim 1 which is a guidewire.

3. The article of claim 1 which is a cannula.

4. The article of claim 1 which is a blade.

5. The article of claim 1 wherein said polysiloxane lubricant is terminated with said aminoalkyl group.

6. An article comprising a metal surface having thereon a coating of a noncuring polysiloxane lubricant substituted with an amino group, said polysiloxane lubricant having a viscosity of about 100 to 60,000 centistokes.

7. An article comprising a metal surface having thereon a coating of a noncuring aminopropyl terminated polysiloxane lubricant having a viscosity of about 1,000 to 2,000.

8. An assembly comprising a plastic catheter, a coating of a lubricant on said catheter, a metal article within said catheter and a coating of a noncuring aminoalkyl terminated polysiloxane lubricant on said article, said polysiloxane lubricant having a viscosity of about 300 to 25,000 centistokes.

9. The assembly of claim 8 wherein said catheter is of a polymer selected from the group consisting of polyolefin, polyvinyl, polyester, polyamide and polyurethane.

10. The assembly of claim 9 wherein said article is a guidewire.

11. The assembly of claim 9 wherein said article is a cannula.

12. An assembly comprising a plastic catheter, a coating of a lubricant on said catheter, a metal article within said catheter and a coating of a polysiloxane lubricant substituted with an amino group on said article, said polysiloxane lubricant having a viscosity of about 100 to 60,000 centistokes.

13. An assembly comprising a metal article, a coating of a polysiloxane lubricant terminated with an aminopropyl group on said article, a plastic catheter positioned over said article and a coating of a noncuring, polysiloxane lubricant terminated with a trialkylsiloxy group on said catheter, said lubricant on said article having a viscosity of about 1,000 to 2,000.

14. The assembly of claim 13 wherein said article is a guidewire.

15. The assembly of claim 13 wherein said article is a cannula.