Anthony V Lemus

US Patent:

6447719, Sep 10, 2002

Filed:

Oct 2, 2000

Appl. No.:

09/677534

Inventors:

Mitch Agamohamadi - Orange CA
Alfredo M. Choperena - San Juan Capistrano CA
Anthony Lemus - Yorba Linda CA

Assignee:

Johnson Johnson - New Brunswick NJ

International Classification:

A61L 200

US Classification:

422 22, 422 3, 422 28, 422 29, 422 62, 422292, 422906

Abstract:

The present invention provides a sterilization system that includes a low frequency power feedback control system for controllably adjusting a power applied to a low frequency plasma within a vacuum chamber of the sterilization system to remove gas or vapor species from the article. The power has a frequency of from 0 to approximately 200 kHz. The low frequency power feedback control system includes a power monitor adapted to produce a first signal indicative of the power applied to the low frequency plasma within the vacuum chamber. The low frequency power feedback control system further includes a power control module adapted to produce a second signal in response to the first signal from the power monitor, and a power controller adapted to adjust, in response to the second signal, the power applied to the low frequency plasma to maintain a substantially stable average power applied to the low frequency plasma while the article is being processed.

US Patent:

6495100, Dec 17, 2002

Filed:

Dec 22, 1999

Appl. No.:

09/470244

Inventors:

Szu-Min Lin - Laguna Hills CA
Anthony Lemus - Yorba Linda CA
Harold R. Williams - San Clemente CA
Paul Taylor Jacobs - Trabuco Canyon CA
Tralance O. Addy - Coto de Caza CA
Jon Morrell Jacobs - Trabuco Canyon CA

Assignee:

Ethicon, Inc. - Somerville NJ

International Classification:

A61L 220

US Classification:

422 29, 422 33

Abstract:

A method for sterilizing medical devices and similar instruments in diffusion-restricted containers is provided. The sterilization method includes placing a liquid solution containing vaporizable germicide such as hydrogen peroxide into the diffusion-restricted container and vaporizing the germicide. The containers can be attachable and detachable to a sterilization system, and used as a vacuum chamber. An attachable/detachable container containing an article to be sterilized can be nested with a second container, and the article and inside and outside of the inner container are sterilized. The sterile article inside the nested containers can be transported and the sterile inner container with the sterilized article can removed from the outer container and placed in a sterile environment without contaminating the sterile environment. The sterile article can then be removed from the sterile container and utilized. Alternatively, the sterilization method may include introducing germicide vapor into an attachable/detachable container.

US Patent:

6841124, Jan 11, 2005

Filed:

Oct 7, 2002

Appl. No.:

10/266063

Inventors:

John Chien - Buena Park CA, US
Anthony Lemus - Villa Park CA, US

Assignee:

Ethicon, Inc. - Somerville NJ

International Classification:

A61L 200

US Classification:

422 3, 422 22, 422 28, 422 29, 422 62, 422105, 422108, 422906

Abstract:

A sterilization system applies power to a plasma within a chamber to remove gas or vapor species from an article. The sterilization system includes a power feedback control system for controlling the power applied to the plasma. The power feedback control system includes a current monitor adapted to produce a first signal indicative of a current applied to the plasma within the chamber. The power feedback control system further includes a voltage monitor adapted to produce a second signal indicative of a voltage applied to the plasma within the chamber. The power feedback control system further includes a power control module comprising a programmable digital signal processor. The digital signal processor is adapted to receive and process the first signal and the second signal by multiplying the current and the voltage and producing a third signal indicative of the product of the current and the voltage. The power feedback control system further includes a plasma generator coupled to the power control module and adapted to adjust, in response to the third signal, the power applied to the plasma within the chamber.

US Patent:

6852277, Feb 8, 2005

Filed:

Mar 19, 2001

Appl. No.:

09/812148

Inventors:

Mitch Agamohamadi - Orange CA, US
Alfredo M. Choperena - San Juan Capistrano CA, US
Anthony Lemus - Yorba Linda CA, US

Assignee:

Ethicon, Inc. - Somerville NJ

International Classification:

A61L002/00

US Classification:

422 3, 422 22, 422 28, 422 29, 422 62, 422105, 422108, 422906

Abstract:

A sterilization system and method applies low frequency power to a plasma within a vacuum chamber to remove gas or vapor species from an article. The sterilization system includes a switching module adapted to pulsate the low frequency power applied to the plasma and a low frequency power feedback control system for controllably adjusting the low frequency power applied to the plasma. A power monitor is adapted to produce a first signal indicative of the low frequency power applied to the plasma within the vacuum chamber. A power control module is adapted to produce a second signal in response to the first signal from the power monitor, and a power controller is adapted to adjust, in response to the second signal, the low frequency power applied to the plasma to maintain a substantially stable average low frequency power applied to the plasma while the article is being processed.

US Patent:

6939519, Sep 6, 2005

Filed:

Jun 27, 2002

Appl. No.:

10/184153

Inventors:

Mitch Agamohamadi - Orange CA, US
Alfredo M. Choperena - San Juan Capistrano CA, US
Anthony Lemus - Yorba Linda CA, US

Assignee:

Advanced Sterilization Products - Irvine CA

International Classification:

B01J019/08
A61L002/00

US Classification:

42218629, 422 22

Abstract:

The present invention provides a power feedback control system for controllably maintaining a predetermined average power value of a power applied to a plasma of a sterilization system. The power has a frequency of from 0 to approximately 200 kHz. The power feedback control system includes a power monitor including a current monitor and a voltage monitor. The current monitor is adapted to produce a first signal indicative of a current applied to the plasma. The voltage monitor is adapted to produce a second signal indicative of a voltage applied to the plasma. The power monitor is adapted to produce a third signal in response to the first signal and second signal. The third signal is indicative of the power applied to the plasma. The power feedback control system further includes a power control module adapted to produce a fourth signal in response to the third signal from the power monitor and to a reference signal corresponding to the predetermined average power value. The power feedback control system further includes a power controller adapted to adjust, in response to the fourth signal, the power applied to the plasma to maintain the predetermined average power value of the power applied to the plasma.

US Patent:

7091042, Aug 15, 2006

Filed:

Nov 2, 2001

Appl. No.:

10/002038

Inventors:

Anthony Lemus - Villa Park CA, US
Debra Timm - Foothill Ranch CA, US

Assignee:

Ethicon, Inc. - Somerville NJ

International Classification:

A61L 2/16
A61L 2/28
A61L 12/08

US Classification:

436 1, 422 1, 422102, 422104

Abstract:

A sterilization process challenge device has a sterilization indicator contained within a container; and a variable diffusion restriction into said container.

US Patent:

7179419, Feb 20, 2007

Filed:

Oct 31, 2002

Appl. No.:

10/284987

Inventors:

Szu-Min Lin - Laguna Hills CA, US
Anthony Lemus - Villa Park CA, US
Harold R. Williams - San Clemente CA, US
Paul T. Jacobs - Bichnoll UT, US
Tralance O. Addy - Coto de Caza CA, US
Jon M. Jacobs - Pasco WA, US

Assignee:

Johnson & Johnson Medical Div Ethicon, Inc. - Arlington TX

International Classification:

A61L 2/20

US Classification:

422 33, 422 29

Abstract:

A method for sterilizing medical devices and similar instruments in diffusion-restricted containers is provided. The sterilization method includes placing a liquid solution containing vaporizable germicide such as hydrogen peroxide into the diffusion-restricted container and vaporizing the germicide. The containers can be attachable and detachable to a sterilization system, and used as a vacuum chamber. An attachable/detachable container containing an article to be sterilized can be nested with a second container, and the article and inside and outside of the inner container are sterilized. The sterile article inside the nested containers can be transported and the sterile inner container with the sterilized article can removed from the outer container and placed in a sterile environment without contaminating the sterile environment. The sterile article can then be removed from the sterile container and utilized. Alternatively, the sterilization method may include introducing germicide vapor into an attachable/detachable container.

US Patent:

7247482, Jul 24, 2007

Filed:

Jun 28, 2006

Appl. No.:

11/426991

Inventors:

Anthony Lemus - Villa Park CA, US
Debra Timm - Foothill Ranch CA, US

Assignee:

Ethicon, Inc. - Somerville NJ

International Classification:

A61L 2/28
A61L 2/16

US Classification:

436 1, 422 1, 422 28, 422102, 422104, 435 31, 4352871

Abstract:

A sterilization process challenge device has a sterilization indicator contained within a container; and a variable diffusion restriction into said container.