Jack Phillip Rosoff

US Patent:

6558358, May 6, 2003

Filed:

Aug 6, 2001

Appl. No.:

09/923756

Inventors:

Jack P. Rosoff - Portland OR
Michael N. Hirsch - Portland OR
Ali S. Salem - Canby OR

Assignee:

Tri-Med International, LLC - Portland OR

International Classification:

A61M 524

US Classification:

604200

Abstract:

A multiple-dose syringe including a barrel with a closed end and an open end, the closed end having an injection port adapted to receive a needle. A plunger is slidably disposed through the open end of the barrel. A container is connected to an end of the plunger to move with the plunger. The container has a deformable shell with an opening at a forward end thereof and a predetermined quantity of fluid sealed therein by a closure member disposed over the opening. The container is slidably disposed in the barrel and includes a seal proximal to the forward end to form a first cavity in the barrel with a volume that is adjustable by moving the container in the barrel with the plunger so that fluid can be selectively drawn into and expelled from the first cavity. After at least a substantial portion of the fluid is expelled from the first cavity, the shell is configured to be collapsed by further pressure applied by the plunger to expel the predetermined quantity of fluid contained therein.

US Patent:

7011650, Mar 14, 2006

Filed:

Jan 6, 2003

Appl. No.:

10/336977

Inventors:

Jack P. Rosoff - Portland OR, US
Michael N. Hirsch - Portland OR, US
Ali S. Salem - Canby OR, US

Assignee:

Paradigm Medical, LLC - Portland OR

International Classification:

A61M 5/178

US Classification:

604216, 604191, 604212

Abstract:

A multiple-dose syringe including a barrel with a closed end and an open end, the closed end having an injection port that may be adapted to receive a needle, or that may be adapted to engage a commercially available needle-less system for fluidly connecting a syringe to an IV or a medicine vial. A plunger is slidably disposed through the open end of the barrel. A container is connected to an end of the plunger to move with the plunger. The container has a deformable shell with an opening at a forward end thereof and a predetermined quantity of fluid sealed therein by a closure member disposed over the opening to selectively seal the opening. The closure member includes a valve that opens in response to a fluid pressure differential across the valve. The container is slidably disposed in the barrel and includes a seal proximal to the forward end to form a first cavity in the barrel with a volume that is adjustable by moving the container in the barrel with the plunger so that fluid can be selectively drawn into and expelled from the first cavity, which is contiguous to the injection port. After at least a substantial portion of the fluid is expelled from the first cavity, the shell is configured to be collapsed by further pressure applied by the plunger, and after a predetermined fluid pressure differential across the closure member is reached, the valve of the closure member opens to allow expulsion of the quantity of fluid contained in the container.

US Patent:

20020091361, Jul 11, 2002

Filed:

Mar 7, 2002

Appl. No.:

10/093707

Inventors:

Jack Rosoff - Portland OR, US
Michael Hirsch - Portland OR, US
Ali Salem - Canby OR, US

International Classification:

A61M005/24

US Classification:

604/212000, 604/232000

Abstract:

A multiple-dose syringe including a barrel with a closed end and an open end, the closed end having an injection port adapted to receive a needle. A plunger is slidably disposed through the open end of the barrel. A container is connected to an end of the plunger to move with the plunger. The container has a deformable shell with an opening at a forward end thereof and a predetermined quantity of fluid sealed therein by a closure member disposed over the opening. The container is slidably disposed in the barrel and includes a seal proximal to the forward end to form a first cavity in the barrel with a volume that is adjustable by moving the container in the barrel with the plunger so that fluid can be selectively drawn into and expelled from the first cavity. After at least a substantial portion of the fluid is expelled from the first cavity, the shell is configured to be collapsed by further pressure applied by the plunger to expel the predetermined quantity of fluid contained therein.

US Patent:

62704826, Aug 7, 2001

Filed:

Sep 9, 1999

Appl. No.:

9/392870

Inventors:

Jack P. Rosoff - Portland OR
Michael N. Hirsch - Portland OR
Ali S. Salem - Canby OR

Assignee:

Tri-Med International, LLC

International Classification:

A61M 524

US Classification:

604200

Abstract:

A multiple-dose syringe including a barrel with a closed end and an open end, the closed end having an injection port adapted to receive a needle. A plunger is slidably disposed through the open end of the barrel. A container is connected to an end of the plunger to move with the plunger. The container has a deformable shell with an opening at a forward end thereof and a predetermined quantity of fluid sealed therein by a closure member disposed over the opening. The container is slidably disposed in the barrel and includes a seal proximal to the forward end to form a first cavity in the barrel with a volume that is adjustable by moving the container in the barrel with the plunger so that fluid can be selectively drawn into and expelled from the first cavity. After at least a substantial portion of the fluid is expelled from the first cavity, the shell is configured to be collapsed by further pressure applied by the plunger to expel the predetermined quantity of fluid contained therein.

US Patent:

62139878, Apr 10, 2001

Filed:

Aug 2, 1999

Appl. No.:

9/364996

Inventors:

Michael N. Hirsch - Portland OR
Jack P. Rosoff - Portland OR
Ali Salem - Canby OR

International Classification:

A61M 500

US Classification:

604263

Abstract:

A guide of the device is engageable with a hypodermic syringe barrel for secure placement thereon. A slide carried by the guide includes a shroud extensible from a stowed position adjacent the barrel forward over the end of a used syringe needle. The guide and an elongate slide therein embody locking means retaning the slide in an extended position after syringe use. A rib on the slide is provided at one end with a finger contactible surface for convenient slide positioning. The guide includes inwardly turned flanges to further support the slide against lateral displacement.