Filter device for injectable fluids

• US 4,261,474 A
• Filed: 11/01/1979
• Issued: 04/14/1981
• Est. Priority Date: 11/01/1979
• Status: Expired due to Term

• Current Assignee: Milton J. Cohen
• Original Assignee: Milton J. Cohen
• Inventors: Cohen, Milton J.
• Primary Examiner(s): Norton, Donald F.
• Application Number:
  US06/090,428
• Time in Patent Office: 530 Days
• Field of Search: 215/247, 215/248, 215/249, 215/250, 215/308, 206/221, 128/272.1, 128/272.3
• US Class Current: 215/250
• CPC Class Codes: A61J 1/201 having one piercing end
• CPC Class Codes: A61J 1/2075 for external venting
• CPC Class Codes: A61J 1/2082 for gas filtration
• CPC Class Codes: A61J 1/2086 for fluid filtration
• CPC Class Codes: A61J 1/2089 Containers or vials which are to be joined to each other in order to mix their contents combinations of vial and syringe for mixing their contents A61J1/2096
• CPC Class Codes: A61J 1/2096 Combination of a vial and a syringe for transferring or mixing their contents
• CPC Class Codes: B65D 51/002 Closures to be pierced by an extracting-device for the contents and fixed on the container by separate retaining means

Abstract

A filter device for injectable fluids which includes a tubular member secured in sealing relation in the open end of a vial partially filled with the injectable fluid and a rupturable sealing disc sealing the tubular member and which includes a filter means within the tubular member for filtration of fluid during passage through said tubular member.

Claims

1. A filter device for injectable fluids comprising a vial open at one end and partially filled with the injectable fluid, a rupturable sealing disc, a tubular member open at both ends extending into the open end of the vial, means securing the sealing disc and the tubular member in sealing relation to the open end portion of the vial, a passage in the tubular member communicating the interior of the tubular member with the interior of the vial, a stopper releasably fitted in said passage to plug the passage, and a filter means within the tubular member for filtering fluid or gases during flow through the tubular member.

2. A filter device as claimed in claim 1 in which the vial has a lip portion about the open end and the tubular member and sealing disc have annular portions which are dimensioned to overlie the lip portion, and means for securing said overlying portions onto the lip to effect a sealing relation therebetween to seal the open end of the vial.

3. A filter device as claimed in claim 2 in which the annular portion of the tubular member is disposed between the annular portion of the sealing disc and the lip in the assembled relation.

4. A filter device as claimed in claim 1 which includes an annular flange extending inwardly from the inserted end portion of the tubular member to define the passage communicating the interior of the tubular member with the interior of the vial.

5. A filter device as claimed in claim 4 in which the filter means comprises a filter disc which spans the passage and is seated in the tubular member in engagement with the annular flange.