×

Device and method for avoiding contamination of multi-dose medicament vials

  • US 5,102,406 A
  • Filed: 02/04/1991
  • Issued: 04/07/1992
  • Est. Priority Date: 06/02/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. A clean air reservoir comprising a container having substantial rigid, air impermeable walls and first and second apertures, said first aperture being sealed by an air impermeable membrane capable of penetration by the needle of a syringe, said impermeable membrane being self-sealing following such penetration, said second aperture being covered by an air permeable, clean-filtering microporous plastic membrane, said container initially having a charge of purified air contained within and filling the entire space between said air impermeable membrane and said microporous membrane, said purified air charge being accessible to the needle of a syringe which has penetrated said air impermeable membrane.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×