DAVID L MITCHELL, M.D.
Anesthesiologist Assistant at Munras Ave, Monterey, CA

6344032, Feb 5, 2002

Aug 8, 2000

09/634689

Anthony R. Perez - Pasedena CA
John R. Firth - Wilsonville OR
David W. Mitchell - Orange CA

Safety Syringes, Inc. - Carlsbad CA

A61M 532

604198, 604110, 604197

An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a locking mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation. The body may also include one or more ribs within the cavity for accommodating a cartridge with a large needle cap, such as a 0. 5 mL capacity pre-filled syringe.

6159184, Dec 12, 2000

Oct 2, 1997

8/942938

Anthony R. Perez - Pasadena CA
John R. Firth - Wilsonville OR
David W. Mitchell - Orange CA

Safety Syringes, Inc. - Arcadia CA

A61M 532, A61M 500

604192

An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a locking mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation. The body may also include one or more ribs within the cavity for accommodating a cartridge with a large needle cap, such as a 0. 5 mL capacity pre-filled syringe.

5197636, Mar 30, 1993

Feb 3, 1992

7/830387

David W. Mitchell - Orange CA
John Baker - Irvine CA
Hampar Karageozian - Laguna Hills CA
Daniel F. Smith - Irvine CA

Allergan, Inc. - Irvine CA

B67D 558

222190

An apparatus for dispensing a liquid medium containing dissolved chlorine dioxide comprises a reservoir which defines a receptacle adapted for holding a precursor liquid medium having chlorine dioxide precursor dissolved therein and a tip assembly into which the precursor liquid medium passes after the precursor liquid exits the receptacle. The tip assembly comprises a chamber in which is located a promoter component effective to promote the generation of chlorine dioxide from the chlorine dioxide precursor in the liquid medium present in the chamber, an outlet providing a path for the liquid medium containing dissolved chlorine dioxide to exit the chamber, and an isolation assembly acting to effectively separate the precursor liquid medium in the reservoir from the promoter when it is desired that the precursor liquid medium from the reservoir be separated from the catalyst.

2005003, Feb 10, 2005

Sep 14, 2004

10/941453

Anthony Perez - Pasadena CA, US
John Firth - Wilsonville OR, US
David Mitchell - Orange CA, US

A61M005/32

604198000

An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation. The body may also include one or more ribs within the cavity for accommodating a cartridge with a large needle cap, such as a 0.5 mL capacity pre-filled syringe. In addition, the guard may include a finger grip plug lockably attachable to the proximal end of the body, and a plunger insertable through the finger grip plug to engage a piston in a cartridge not having its own plunger. The plunger may include a one-way locking member to prevent removal of the plunger from the finger grip plug after assembly.

6030366, Feb 29, 2000

Nov 9, 1998

9/188830

David W. Mitchell - Orange CA

Safety Syringes, Inc. - Oceanside CA

A61M 500

604192

A guard for a medical cartridge, such as a pre-filled syringe, includes a body having an open proximal end communicating with a cavity for receiving the cartridge, and a shield slidably attached to the body. The body has a semi-rigid cantilever member on its distal end from which a stop tab, having a sloped distal edge and a blunt proximal edge, extends. The shield includes an elongate opening for receiving the stop tab, thereby allowing the shield to slide between unguarded and guarded positions for exposing and covering a needle, respectively. During assembly of the shield and body, the stop tab slidably engages an assembly tab on the shield, deflecting the cantilever member inward while the stop tab passes under the shield, the sloped distal edge of the stop tab minimizing damage to the stop tab or shield. In the guarded position, the blunt proximal edge of the stop tab engages a proximal wall of the elongate opening to prevent further distal movement beyond the guarded position. The body and shield include cooperating detents and distal detent pockets having oblique proximal corners that mutually engage to prevent proximal movement from the guarded position.

2005005, Mar 10, 2005

Oct 21, 2004

10/971602

Anthony Perez - Pasadena CA, US
John Firth - Wilsonville OR, US
David Mitchell - Orange CA, US

A61M005/32

604198000

An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation.

7041085, May 9, 2006

Dec 17, 2001

10/023587

Anthony R. Perez - Pasadena CA, US
John R. Firth - Wilsonville OR, US
David W. Mitchell - Orange CA, US

Safety Syrines, Inc. - Carlsbad CA

A61M 5/32, A61M 5/00

604198, 604110

An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a locking mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation.

D279357, Jun 25, 1985

May 20, 1983

6/496753

David W. Mitchell - Orange CA

Allergan Pharmaceuticals, Inc. - Irvine CA

D 9450