Pharmaceutical packaging with lubricating film and method for producing same

Patent metadata

Field	Value
Publication number	US-11826778-B2
Application number	US-201816103762-A
Country	US
Kind code	B2
Filing date	Aug 14, 2018
Priority date	Sep 14, 2009
Publication date	Nov 28, 2023
Grant date	Nov 28, 2023

Abstract

A pharmaceutical packaging including a silicone-free lubricating film of crosslinked organic molecules, and a method for producing same.

First claim

What is claimed is:

1. A medical packaging comprising a cavity for receiving a pharmaceutical drug, wherein the cavity is coated with a silicone-free organic lubricating film, the silicone-free organic lubricating film having a uniformity of film thickness that is greater than or equal to 0.1, wherein the lubricating film comprises organic molecules homogeneously crosslinked via an abnormal glow discharge exhibiting a current/voltage characteristic with positive slope so as to provide a surface energy of not more than 60 mN/m that varies by less than ±20 mN/m or has a contact angle for water on the lubricating film that varies by less than ±25° and the lubricating film is produced from a material having a viscosity index of more than 80.

2. The medical packaging as claimed in claim 1 , wherein the contact angle of the lubricating film for water is at least 60°.

3. The medical packaging as claimed in claim 1 , wherein the lubricating film has the surface energy of not more than 40 mN/m.

4. The medical packaging as claimed in claim 1 , wherein the lubricating film has the surface energy of not more than 30 mN/m.

5. The medical packaging as claimed in claim 1 , wherein the contact angle of the lubricating film for water is in a range from 60° to 140°.

6. The medical packaging as claimed in claim 1 , wherein the contact angle of the lubricating film for water is in a range from 65° to 130°.

7. The medical packaging as claimed in claim 1 , wherein the contact angle of the lubricating film for water is in a range from 70° to 125°.

8. The medical packaging as claimed in claim 1 , wherein the contact angle of the lubricating film for
a) diiodomethane is in a range from 40° to 140°;
b) ethylene glycol is in a range from 20° to 100°;
c) thiodiethanol is in a range from 20° to 120°.

9. The medical packaging as claimed in claim 1 , wherein the contact angle of the lubricating film for
a) diiodomethane is in a range from 80° to 120°;
b) ethylene glycol is in a range from 35° to 110°;
c) thiodiethanol is in a range from 35° to 110°.

10. The medical packaging as claimed in claim 1 , wherein the contact angle of the lubricating film for
a) diiodomethane is in a range from 95° to 115°;
b) ethylene glycol is in a range from 60° to 105°;
c) thiodiethanol is in a range from 60° to 105°.

11. The medical packaging as claimed in claim 1 , wherein the coated cavity comprises a cylinder for guiding a plunger.

12. The medical packaging as claimed in claim 1 , wherein the surface energy of the lubricating film in the coated area varies by less than ±10 mN/m, or the contact angle for water on the lubricating film varies by less than ±15°.

13. The medical packaging as claimed in claim 1 , further comprising two elements that slide on each other, wherein one of sliding surfaces of the elements is provided with the lubricating film having at least one of the following characteristics:
a. a dynamic sliding friction force measured at an advance rate of 100 millimeters per minute is less than 20 N, and a breakaway force is less than 30 N;
b. after storage of the packaging with distilled water or water for injection (“WFI”) at 40° C. over a period of more than 100 days, the dynamic sliding friction force measured at an advance rate of 100 millimeters per minute is less than 20 N, and the breakaway force is less than 30 N;
c. the dynamic sliding friction force measured at an advance rate of 100 millimeters per minute is less than 10 N, and the breakaway force is less than 20N, wherein the two elements sliding on each other include a syringe or carpule cylinder and an elastomer, both of the sliding surfaces of the elements being provided with a fluoro-organic lubricating film.

14. The medical packaging as claimed in claim 1 , further comprising two elements sliding on each other in form of a syringe or carpule cylinder and an elastomer, wherein sliding surfaces of the elements and also a substantial or entire surface portion of the contact surfaces of the elements to the cavity enclosed by the packaging are coated with a perfluorinated lubricating film.

15. The medical packaging as claimed in claim 1 , wherein the surface energy is not more than 25 mN/m.

16. A medical packaging comprising:
a cavity for receiving a pharmaceutical drug, wherein the cavity is coated with a silicone-free organic lubricating film, the silicone-free organic lubricating film having a uniformity of film thickness that is greater than or equal to 0.1, wherein the lubricating film comprises organic molecules that are homogeneously crosslinked via an abnormal glow discharge exhibiting a current/voltage characteristic with positive slope to provide a surface energy of not more than 60 mN/m and the lubricating film is produced from a material having a viscosity index of more than 80, and the material comprises organic fluids with fluoroalkyl group;
a plunger in contact with a contact surface comprising the lubricating film; and
a breakaway force between the lubricating film and the plunger that is less than 12 N, wherein the surface energy varies by less than ±20 mN/m or has a contact angle for water on the lubricating film that varies by less than ±25°.

17. The medical packaging as claimed in claim 16 , wherein the plunger further comprises lubricating film thereon.

18. A medical packaging comprising:
a cavity coated with a lubricating film, wherein the lubricating film is silicone-free and comprises organic molecules that are homogeneously crosslinked via an abnormal glow discharge exhibiting a current/voltage characteristic with positive slope so as to provide a surface energy of not more than 60 mN/m that varies in the cavity by less than ±20 mN/m and the lubricating film is produced from a material having a viscosity index of more than 80, and the lubricating film comprises contents of nitrogen oxides and ozone that and ozone of less than 1 ppm from using a pulsing voltage, and the silicone-free organic lubricating film has a uniformity of film thickness that is greater than or equal to 0.1; and
a plunger in the cavity and in contact with the lubricating film.

Assignees

• Schott Ag

Inventors

• Bicker Matthias
• Bauch Hartmut
• Lohmeyer Manfred

Classifications

• B05D5/083 Primary

  involving the use of fluoropolymers · CPC title

• B05D3/141

  Plasma treatment · CPC title

• B05D7/22

  to internal surfaces, e.g. of tubes · CPC title

• B05D1/62

  Plasma-deposition of organic layers (plasma deposition in general C23C14/00, C23C16/00) · CPC title

• B05D3/0493

  using vacuum · CPC title