Method For Reducing or Eliminating Residue in a Glass Container and a Glass Container made in Accordance Therewith

Patent metadata

Field	Value
Publication number	US-2016002087-A1
Application number	US-201514853276-A
Country	US
Kind code	A1
Filing date	Sep 14, 2015
Priority date	Sep 30, 2004
Publication date	Jan 7, 2016
Grant date	—

Abstract

A method of preparing a glass medical container is provided including the steps of providing a glass blank and forming a channel through a part of the glass blank, the channel being substantially free of tungsten or derivatives thereof. In a further aspect of the subject invention, a glass medical container is provided including a glass body having a channel extending through a part of the glass body, the channel being substantially free of tungsten or derivatives thereof. With the subject invention, tungsten or derivatives thereof can be generally or altogether completely avoided in glass medical containers.

First claim

What is claimed is:

1 . A method of producing a glass medical container, comprising the steps of:
providing a glass bank; providing a pin at an opening in said glass bank; and forming said glass bank to conformingly engage said pin to form a channel, wherein said pin is made of a material that does not contain tungsten and which is selected from the group consisting of metals or alloys containing platinum or platinum group metals, metals or alloys containing nickel, silicides, and combinations thereof.

2 . The method of claim 1 , wherein said forming step comprises forming said glass bank to form a channel having a length and defining a diameter that is constant along said length.

3 . The method of claim 1 , wherein said forming step comprises forming said glass blank to form a channel having a length and defining a diameter that varies along said length.

4 . The method of claim 3 , wherein said forming step comprises forming said glass blank to form a channel having a first portion defining a first constant diameter and a second portion defining a second constant diameter, said first diameter being larger than said second diameter.

5 . The method of claim 4 , wherein said first constant diameter is 0.6 mm and said second constant diameter is in the range of 0.2 to 0.4 mm.

6 . The method of claim 1 , wherein said glass medical container is selected from the group consisting of a syringe barrel, vial, and drug cartridge body.

7 . The method of claim 1 , wherein said forming step comprises thermally manipulating said glass blank.

8 . The method of claim 1 , wherein said forming step comprises mechanically manipulating said glass blank.

9 . The method of claim 1 , wherein said glass blank is unwashed before or after said forming step.

10 . The method of claim 1 , wherein said glass blank is unsterilized before or after said forming step.

11 . The method of claim 1 , wherein said pin is of a platinum/rhodium alloy with 80% to 90% platinum and 20% to 10% rhodium.

Assignees

• Becton Dickinson Co

Inventors

• Prais Alfred W
• Cocheteux Bruno
• Cortes Arturo
• Delabie Patrice
• Wales Edouard
• Luedtka Richard D
• Schaecher Randy
• Vulliet Daniel

Classifications

• C03B23/092 Primary

  by pressing · CPC title

• A61M5/3129

  Syringe barrels (A61M5/3205 and A61M5/50 take precedence) · CPC title

• A61J1/00

  Containers specially adapted for medical or pharmaceutical purposes (capsules or the like for oral use A61J3/07; specially adapted for surgical or diagnostic appliances or instruments A61B50/30; containers for radioactive substances G21F5/00) · CPC title

• A61M5/3134

  characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula · CPC title

• A61M5/34

  Constructions for connecting the needle {, e.g. to syringe nozzle or needle hub (connecting catheter tubes to hubs A61M25/0014)} · CPC title