Thomas M Michaels

US Patent:

54908426, Feb 13, 1996

Filed:

Feb 16, 1995

Appl. No.:

8/389510

Inventors:

John F. Volk - Chester Springs PA
Thomas Michaels - Upper Saddle River NJ

Assignee:

Tri/West Systems, Inc. - Upper Saddle River NJ

International Classification:

A61M 500

US Classification:

604110

Abstract:

A syringe device has a vial for medicaments having a first open end at a scaled second end. The first end having a plunger tip for sealing the end and has a finger grip means mounted adjacent the first. The needle and hub is slidably mounted on a needle on the second end in axial alignment with the sealed end to position said needle for access to the vial. The plunger rod has a first engagement on one end for engagement with the plunger tip and mounting means for detachably mounting the plunger between the finger grip and the hub to prevent access to the vial when the plunger is mounted thereon.

US Patent:

56858469, Nov 11, 1997

Filed:

Feb 27, 1995

Appl. No.:

8/394712

Inventors:

Thomas M. Michaels - Upper Saddle River NJ

Assignee:

Schott Parenta Systems, Inc. - Montvale NJ

International Classification:

A61M 3700

US Classification:

604 90

Abstract:

A syringe device for use with two components to be combined prior to discharge, comprising a syringe body without the proximal end, a syringe plunger rod threadedly engageable into a plunger and a lined seal for engagement with a needle hub. The syringe body has at the distal end a radially inwardly directed internal sealing ring dividing the body to define a distal chamber and a proximal chamber. Also provided is an internal bypass stopper sized to fit the syringe body and engage the sealing ring to sealingly separate the distal chamber and the proximal chamber. The stopper has a plurality of projections circumferentially spaced thereon for engagement with the syringe body on at least one side of the sealing ring. The projections define by-pass channels therebetween to permit flow of liquid from the proximal chamber to the distal chamber upon movement of the stopper toward the distal end.

US Patent:

50679473, Nov 26, 1991

Filed:

Jul 18, 1989

Appl. No.:

7/381383

Inventors:

John F. Volk - Chester Springs PA
Thomas Michaels - Upper Saddle River NJ

Assignee:

Tri/West Systems, Inc. - Upper Saddle River NJ

International Classification:

A61M 524

US Classification:

604201

Abstract:

A syringe device has a vial for medicaments having a first open end at a sealed second end. The first end having a plunger tip for sealing the end and has a finger grip means mounted adjacent the first. The needle and hub is slidably mounted on a needle on the second end in axial alignment with the sealed end to position said needle for access to the vial. The plunger rod has a first engagement on one end for engagement with the plunger tip and mounting means for detachably mounting the plunger between the finger grip and the hub to prevent access to the vial when the plunger is mounted thereon.