IP Library › Granted Patent US 6,890,345
Granted Patent B2
US 6,890,345 · App. 09/964,902 · Granted May 10, 2005

Pretreatment for lubricated surgical needles

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Quick Facts
Patent No.
US 6,890,345
App. No.
09/964,902
Granted
May 10, 2005
Kind
B2
Abstract

A method for siliconizing surgical needles is provided whereby the needles are treated with acid before they are siliconized.

Claims (7)

1. A surgical needle having reduced penetration force comprising:

a surgical needle having an acid-treated surface; and

a silicone-containing coating on at least a portion of the acid treated surface,

wherein the surgical needle has a penetration force on a fifth pass through tissue that is at least 10% less than the penetration force on a fifth pass through tissue of a needle having the same silicone-containing coating on the same surgical needle having no surface that is acid treated.

2. A surgical needle as in claim 1 wherein the silicone-containing coating comprises an aminoalkyl siloxane.

3. An article of manufacture as in claim 1 wherein the silicone-containing coating comprises an interpenetrating network.

4. An article of manufacture as in claim 1 wherein the silicone-containing coating comprises a copolymer of an aminoalkyl siloxane and a second siliconization material.

Assignments (1)
CHANGE OF NAME Recorded Oct 2, 2012
From: TYCO HEALTHCARE GROUP LP
To: COVIDIEN LP
Reel/Frame 029065/0448 →