Stephen E Albrecht

US Patent:

6436072, Aug 20, 2002

Filed:

Jul 28, 1999

Appl. No.:

09/362254

Inventors:

Karen E. Kullas - Taunton MA
Glen French - Barrington RI
Stephen Albrecht - South Walpole MA
Joan Kinniburgh - Braintree MA
Augustus Felix - Cranston RI
Nancy Drainville - Attleboro MA
Dean L. Kamen - Bedford NH
Bradley Miller - Londonderry NH
Kevin Grant - Manchester NH

Assignee:

DEKA Products Limited Partnership - Manchester NH

International Classification:

A61M 100

US Classification:

604151, 4174772

Abstract:

A medical irrigation pump and pump system utilize a permanent non-sterile drive motor capable of operating disposable sterile single use pump units each of which is specifically designed for a particular medical procedure. The pump units have housing which are adapted to be interchangeable within the permanent controller system. Only the sterilized and disposable pump units come into contact with the fluid pathway during pumping. A pattern of bumps on each pump unit is unique for the medical procedure for which the pump unit was designed. The pattern of bumps engages switches on the controller, enabling the controller to identify what type of pump unit has been installed. After automatically identifying the type of pump unit and the intended medical procedure, the controller automatically selects a default motor speed that will provide an appropriate fluid pressure for that particular procedure. Buttons on a control panel also enable the user to manually adjust the pressure delivered by the pump. The orientation of the pump unit during the loading procedure allows easy purging of all air from the pump unit before the pump is started.

US Patent:

6485452, Nov 26, 2002

Filed:

Nov 2, 2000

Appl. No.:

09/704895

Inventors:

Glen French - Barrington RI
Stephen Albrecht - South Walpole MA
Roger Darois - Foster RI
Robert Sakal - Riverside RI
Laurence Tremaine - West Warwick RI

Assignee:

C. R. Bard, Inc. - Murray Hill NJ

International Classification:

A61M 302

US Classification:

604 39, 604902

Abstract:

A medical suction and irrigation apparatus includes a suction/irrigation tip removably connected to a conventional suction/irrigation handpiece. Suction is provided through a suction tube which has a bypass conduit in the tip. The bypass conduit is directly connectable to a suction source so that aspirated debris passes through the tip to the suction source. The suction tube thus prevents aspirated debris from entering the conventional suction tube in the handpiece and contaminating the handpiece. The suction tube is also designed to have a maximum size to prevent the tip from clogging. The tip also has an irrigation tube for directing irrigation liquid to the irrigation site, and a connector which connects the irrigation tube to the handpiece so that the handpiece pumps fluid through the tip in a conventional manner. A flexible splash shield, slidably mounted to the irrigation tube, confines irrigation fluid to the local site.

US Patent:

8597275, Dec 3, 2013

Filed:

Apr 12, 2012

Appl. No.:

13/445713

Inventors:

Shekhar D. Nimkar - Swampscott MA, US
Stephen E. Albrecht - South Walpole MA, US
Paramjith Anand - Ayer MA, US
Eric Tobin - North Andover MA, US

Assignee:

Bard Access Systems, Inc. - Salt Lake City UT

International Classification:

A61M 31/00

US Classification:

604510

Abstract:

Methods and apparatus are disclosed for inserting flexible, multi-lumen catheters into blood vessels, and in particular, for inserting flexible, split-tip catheters into blood vessels. The invention accomplishes these objects by temporarily stiffening each catheter lumen and tip independently through use of intra-catheter stiffener elements disposed within the catheter lumens. This provides means for advancing the catheter/stiffeners assembly through a subcutaneous tunnel, and over a plurality of guidewires until a distal tip of the catheter is at a desired position within the vessel. The intra-catheter stiffener elements are sufficiently stiffening to allow advancing the catheter over guidewires, but sufficiently flexible to allow bending and looping of the catheter for proper placement within the vessel.

US Patent:

8206371, Jun 26, 2012

Filed:

Oct 31, 2008

Appl. No.:

12/263141

Inventors:

Shekhar D. Nimkar - Swampscott MA, US
Stephen E. Albrecht - South Walpole MA, US
Paramjith Anand - Ayer MA, US
Eric Tobin - North Andover MA, US

Assignee:

Bard Access Systems, Inc. - Salt Lake City UT

International Classification:

A61M 25/00

US Classification:

604523

Abstract:

Methods and apparatus are disclosed for inserting flexible, multi-lumen catheters into blood vessels, and in particular, for inserting flexible, split-tip catheters into blood vessels. The invention accomplishes these objects by temporarily stiffening each catheter lumen and tip independently through use of intra-catheter stiffener elements disposed within the catheter lumens. This provides means for advancing the catheter/stiffeners assembly through a subcutaneous tunnel, and over a plurality of guidewires until a distal tip of the catheter is at a desired position within the vessel. The intra-catheter stiffener elements are sufficiently stiffening to allow advancing the catheter over guidewires, but sufficiently flexible to allow bending and looping of the catheter for proper placement within the vessel.

US Patent:

20040243095, Dec 2, 2004

Filed:

May 27, 2003

Appl. No.:

10/445731

Inventors:

Shekhar Nimkar - Swampscott MA, US
Stephen Albrecht - South Walpole MA, US
Eric Tobin - North Andover MA, US

International Classification:

A61M031/00

US Classification:

604/500000

Abstract:

Methods and apparatus are disclosed for inserting flexible, multi-lumen catheters into blood vessels, and in particular, for inserting flexible, split-tip catheters into blood vessels. The invention accomplishes these objects by temporarily stiffening each catheter lumen and tip independently through use of intra-catheter stiffener elements disposed within the catheter lumens. This provides means for advancing the catheter/stiffeners assembly through a subcutaneous tunnel, and over a plurality of guidewires until a distal tip of the catheter is at a desired position within the vessel. The intra-catheter stiffener elements are sufficiently stiffening to allow advancing the catheter over guidewires, but sufficiently flexible to allow bending and looping of the catheter for proper placement within the vessel.

US Patent:

D3858898, Nov 4, 1997

Filed:

Sep 11, 1996

Appl. No.:

D/059447

Inventors:

Karen E. Kullas - Taunton MA
Nancy Drainville Chomyszak - Attleboro MA
Stephen Albrecht - South Walpole MA

Assignee:

C.R. Bard, Inc. - Murray Hill NJ

International Classification:

1502

US Classification:

D15 7

US Patent:

61560049, Dec 5, 2000

Filed:

Jun 18, 1996

Appl. No.:

8/667957

Inventors:

Laurence W. Tremaine - West Warwick RI
Robert Sakal - Riverside RI
Stephen Albrecht - South Walpole MA

Assignee:

C. R. Bard, Inc. - Murray Hill NJ

International Classification:

A61M 100

US Classification:

604 27

Abstract:

An apparatus for irrigating a local irrigation site includes a suction/irrigation tip that is removably connected to a suction/irrigation handpiece. The tip has an irrigation tube for directing irrigation liquid to the irrigation site, and a suction tube coaxially aligned within the irrigation tube. The handpiece pumps irrigation liquid from an external reservoir, through the annular space between the irrigation tubes and the suction tube to the irrigation site. Suction is applied to the site through the central suction lumen which has a large unobstructed opening to reduce clogging. A flexible splash shield, slidably mounted to the tip, is conically shaped and extends distally from a collar to a rim. The rim is sized to fit around and about the local site.

US Patent:

62002929, Mar 13, 2001

Filed:

Jun 18, 1996

Appl. No.:

8/665467

Inventors:

Glen French - Barrington RI
Stephen Albrecht - South Walpole MA
Roger Darois - Foster RI
Robert Sakal - Riverside RI
Laurence Tremaine - West Warwick RI

Assignee:

C. R. Bard, Inc. - Murray Hill NJ

International Classification:

A61M 100
A61M 3700

US Classification:

604131

Abstract:

A medical suction and irrigation apparatus includes a suction/irrigation tip removably connected to a conventional suction/irrigation handpiece. Suction is provided through a suction tube which has a bypass conduit in the tip. The bypass conduit is directly connectable to a suction source so that aspirated debris passes through the tip to the suction source. The suction tube thus prevents aspirated debris from entering the conventional suction tube in the handpiece and contaminating the handpiece. The suction tube is also designed to have a maximum size to prevent the tip from clogging. The tip also has an irrigation tube for directing irrigation liquid to the irrigation site, and a connector which connects the irrigation tube to the handpiece so that the handpiece pumps fluid through the tip in a conventional manner. A flexible splash shield, slidably mounted to the irrigation tube, confines irrigation fluid to the local site.