Syringe with PECVD lubricity layer
First Claim
Patent Images
1. A syringe comprising:
- a barrel and a plunger, the barrel having an inner surface defining a lumen and the plunger having a side surface engaging the barrel inner surface, wherein the inner surface is a substrate comprising a polymer, coated with a barrier coating of SiOx, in which x is from about 1.5 to about 2.9, and a lubricity layer applied to the barrier coating of SiOx and configured to provide a lower plunger sliding force or breakout force than the uncoated substrate, the lubricity layer having the following atomic ratios, measured by X-ray photoelectron spectroscopy (XPS),
SiwOxCy,where w is 1, x in this formula is from about 0.5 to 2.4, and y is from about 0.6 to about 3;
the lubricity layer having a thickness by transmission electron microscopy (TEM) between 10 and 1000 nm;
the lubricity layer deposited by plasma enhanced chemical vapor deposition (PECVD) under conditions effective to form a coating from a precursor comprising a linear siloxane, a monocyclic siloxane, or a combination of any two or more of these precursors.
2 Assignments
0 Petitions
Accused Products
Abstract
Methods for processing a vessel, for example to provide a gas barrier or lubricity, are disclosed. First and second PECVD or other vessel processing stations or devices and a vessel holder comprising a vessel port are provided. An opening of the vessel can be seated on the vessel port. The interior surface of the seated vessel can be processed via the vessel port by the first and second processing stations or devices. Vessel barrier and lubricity coatings and coated vessels, for example syringes and medical sample collection tubes are disclosed. A vessel processing system is also disclosed.
-
Citations
24 Claims
-
1. A syringe comprising:
- a barrel and a plunger, the barrel having an inner surface defining a lumen and the plunger having a side surface engaging the barrel inner surface, wherein the inner surface is a substrate comprising a polymer, coated with a barrier coating of SiOx, in which x is from about 1.5 to about 2.9, and a lubricity layer applied to the barrier coating of SiOx and configured to provide a lower plunger sliding force or breakout force than the uncoated substrate, the lubricity layer having the following atomic ratios, measured by X-ray photoelectron spectroscopy (XPS),
SiwOxCy,where w is 1, x in this formula is from about 0.5 to 2.4, and y is from about 0.6 to about 3;
the lubricity layer having a thickness by transmission electron microscopy (TEM) between 10 and 1000 nm;
the lubricity layer deposited by plasma enhanced chemical vapor deposition (PECVD) under conditions effective to form a coating from a precursor comprising a linear siloxane, a monocyclic siloxane, or a combination of any two or more of these precursors.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
- a barrel and a plunger, the barrel having an inner surface defining a lumen and the plunger having a side surface engaging the barrel inner surface, wherein the inner surface is a substrate comprising a polymer, coated with a barrier coating of SiOx, in which x is from about 1.5 to about 2.9, and a lubricity layer applied to the barrier coating of SiOx and configured to provide a lower plunger sliding force or breakout force than the uncoated substrate, the lubricity layer having the following atomic ratios, measured by X-ray photoelectron spectroscopy (XPS),
Specification