Garrett L Barker

US Patent:

6364853, Apr 2, 2002

Filed:

Sep 11, 2000

Appl. No.:

09/659739

Inventors:

C. Kenneth French - Cranfills TX
Garrett L. Barker - Meridian TX
Stephen Chakoff - Miami FL
Melvin E. Levinson - Miami FL

Assignee:

Scion International, Inc. - Miami FL

International Classification:

A61M 100

US Classification:

604 35, 604118, 604250, 1375962, 251 9

Abstract:

The in-line hand operated valve controls the flow of at least one, and preferably both, irrigation fluid and suction respectively to and from a surgical site via a delivery line. In one working embodiment, suction fluid is supplied to the valve via a first source line and suction is supplied to the valve via a second source line. The valve body defines, source ports in fluid communication with the source lines and a delivery port in fluid communication with the delivery line. The valve body includes at least one, and preferably two, collapsible internal fluid carrying channels in fluid communication with the respective source port and the delivery port. Each valve mechanism includes an operator control surface, a stem, and a compressor member acting on and closing and opening the collapsible segment of the fluid carrying channel or body. A biasing element (such as a spring or other resilient body) keeps the valve stem and the compressor element in either an open or a closed state. A two position interlocking mechanical switch is coupled to the valve stem.

US Patent:

6375625, Apr 23, 2002

Filed:

May 11, 2001

Appl. No.:

09/852417

Inventors:

C. Kenneth French - Cranfills TX
Garrett L. Barker - Meridian TX
Melvin E. Levinson - Miami FL

Assignee:

Scion Valley, Inc. - Meridian TX

International Classification:

A61B 500

US Classification:

600573

Abstract:

The in-line specimen trap operates in conjunction with a suction or irrigation line and a second line leading to a surgical site. The trap includes a specimen container, a cap coupled to the specimen container and an operator controlled, multi-modal valve disposed in or on the cap. The valve includes at least a bypass passage and a container input port and a container output port. The bypass passage limits flow exclusively between the first and second lines, that is, between the suction/irrigation line and the line leading to the surgical site. The position of an operator control interface determines the selection of the bypass mode or trap and collection mode. The method establishes, under operator control, a bypass channel between the first and second lines channels under operator control, the specimen fluid and debris from the second line through the specimen container to the first line, and, closes the specimen container after the channeling step.

US Patent:

6461323, Oct 8, 2002

Filed:

Mar 13, 2001

Appl. No.:

09/805349

Inventors:

Reginald H. Fowler - Meridian TX 76665
Garrett L. Barker - Meridian TX 76665
C. Kenneth French - Meridian TX 76637

International Classification:

A61M 3100

US Classification:

604 67, 604 31, 604151, 417 43, 417 63

Abstract:

The automatically controlled pump supplies pressurized irrigation fluid to a surgical site. The pump system includes a motor in a housing and a pump in a housing defining input and output ports. The pump has a rotatable impeller. The motor is powered by one or more batteries. An ON/OFF motor switch is controlled by fluid flow above a nominal flow by a sensor typically mounted downstream of the pump. The system operates in conjunction with a downstream manual control valve. Flow above a system minimal flow is detected by a negative buoyancy poppet having a âleakyâ valve seat. When the poppet moves into a flow chamber, the switched motor is ON. Various position sensors may be used, i. e. , an optical sensor. The method automatically controls a pump by monitoring fluid flow above a system minimal flow and turning ON/OFF the motor based upon flow above the minimum.

US Patent:

6494876, Dec 17, 2002

Filed:

May 15, 2000

Appl. No.:

09/570990

Inventors:

Reginald H. Fowler - Meridian TX
Garrett L. Barker - Meridian TX

Assignee:

Byron Medical, Inc. - Tucson AZ

International Classification:

A61M 100

US Classification:

604542, 604 35

Abstract:

A disposable liposuction device and method. A piston is caused to reciprocate by operating a single valve. The electrical energy for operating the valve is provided by an electric timing circuit that is powered by a battery. The energy provided by the battery is predetermined so that the energy is depleted after about the time required for one liposuction procedure.

US Patent:

6527743, Mar 4, 2003

Filed:

May 3, 2000

Appl. No.:

09/564014

Inventors:

Reginald H. Fowler - Meridian TX
Garrett L. Barker - Meridian TX
C. Kenneth French - Cranfills TX
Daniel A. Palmer - Hamilton OH

Assignee:

Ethicon Endo-Surgery, Inc. - Cincinnati OH

International Classification:

A61M 3700

US Classification:

604131, 6048901, 604151, 604257, 604 31

Abstract:

The automatically controlled pump includes a battery-powered motor with a housing, a pump in a housing with input and output ports. A switch turns ON and OFF the motor due to fluid pressure at the output, Sometimes, the pump housing is below the motor housing and below the battery housing. The input port is beneath the impeller and the output port. A version also includes a manual ON aid OFF switch actuated by an operator and a check valve limiting upstream flow of the pressurized fluid. The fluid pressure sensitive switch is mounted downstream of the check valve. An irrigation surgical kit includes the automatically controlled pump, a spike for a fluid source bag, fluid lines and an operator controlled valve unit disposed at or near the surgical site. The method monitors fluid pressure at or near the pumps output and turns ON and OFF the motor.

US Patent:

6635031, Oct 21, 2003

Filed:

Nov 20, 2002

Appl. No.:

10/300214

Inventors:

Reginald H. Fowler - Meridian TX
Garrett L. Barker - Meridian TX
C. Kenneth French - Cranfills TX
Daniel A. Palmer - Hamilton OH

Assignee:

Ethicon Endo-Surgery, Inc. - Cincinnati OH

International Classification:

A61M 3700

US Classification:

604131, 6048901, 604151, 604257, 604 31

Abstract:

The automatically controlled pump includes a battery-powered motor with a housing, a pump in a housing with input and output ports. A switch turns ON and OFF the motor due to fluid pressure at the output. Sometimes, the pump housing is below the motor housing and below the battery housing. The input port is beneath the impeller and the output port. A version also includes a manual ON and OFF switch actuated by an operator and a check valve limiting upstream flow of the pressurized fluid. The fluid pressure sensitive switch is mounted downstream of the check valve. An irrigation surgical kit includes the automatically controlled pump, a spike for a fluid source bag, fluid lines and an operator controlled valve unit disposed at or near the surgical site. The method monitors fluid pressure at or near the pumps output and turns ON and OFF the motor.

US Patent:

6899697, May 31, 2005

Filed:

Jan 13, 2003

Appl. No.:

10/341449

Inventors:

Reginald H. Fowler - Meridian TX, US
Garrett L. Barker - Meridian TX, US
C. Kenneth French - Cranfills TX, US

Assignee:

Conmed Corp. - Utica NY

International Classification:

A61M037/00

US Classification:

604131, 6048901, 604151, 604257, 604 31

Abstract:

The automatically controlled pump supplies pressurized irrigation fluid to a surgical site. The pump system includes a motor in a housing and a pump in a housing defining input and output ports. The pump has a rotatable impeller. The motor is powered by batteries. The system operates in conjunction with a downstream manual suction/irrigation control valve. In one system, an ON/OFF motor switch is controlled by fluid flow above a nominal flow by a sensor typically mounted downstream of the pump. In another, flow is detected by a negative buoyancy poppet having a “leaky” valve seat. When the poppet moves, its position is sensed and the switched motor is ON. In a remote control system, the motor is remotely controlled by a switch integrated into the manual control valve. One method automatically controls a pump by monitoring fluid flow above a system minimal flow and turning ON/OFF the motor based upon flow above the minimum.

US Patent:

6918902, Jul 19, 2005

Filed:

Mar 22, 2002

Appl. No.:

10/104219

Inventors:

C. Kenneth French - Cranfills TX, US
Garrett L. Barker - Meridian TX, US
Stephen Chakoff - Miami FL, US
Melvin E. Levinson - Miami FL, US

Assignee:

ConMed Corp. - Utica NY

International Classification:

A61M031/00

US Classification:

604500, 604 35, 604118, 604250, 1375962, 251 9

Abstract:

The in-line hand operated valve controls the flow of at least the irrigation fluid or suction to a surgical site. First and second sources provide fluid and suction to the valve. Valve body source ports communicate with the source lines and a delivery port communicates with a delivery line. The valve includes collapsible internal fluid carrying channels linking these ports. Each valve mechanism includes an operator control surface, a stem, and a compressor member acting on and closing and opening the collapsible channels. A biasing element keeps the stem and compressor either open or closed. A two position interlocking mechanical switch, coupled to the stem, is extended in the ON valve position and withdrawn in the OFF position. The method of providing a valve control utilizes these shape and click open and click close systems.