Mahase Joan Nardeo

US Patent:

6530897, Mar 11, 2003

Filed:

Apr 25, 2001

Appl. No.:

09/841725

Inventors:

Mahase Nardeo - Collegeville PA 19426

International Classification:

A61M 3700

US Classification:

604 9504, 604528, 600146

Abstract:

A steerable medical catheter is provided having a polymeric main shaft with a plurality of lumen extending therethrough. A flexible shaft tip portion with a metallic coil spring having a polymeric coating is located on the distal end, with the metallic coil spring being fused to the second end of the main shaft. The polymeric coating has an inner portion configured to define a plurality of lumens which extend through the coil spring. The lumens through the coil spring are aligned with the lumens in the main shaft so that they extend continuously through the catheter. The metallic coil spring is fully encapsulated by the polymeric coating and the second end of the main shaft to which it is fused. A first control wire is located in one of the lumens and affixed to the distal end.

US Patent:

6796991, Sep 28, 2004

Filed:

Aug 28, 2003

Appl. No.:

10/651114

Inventors:

Mahase Nardeo - Collegeville PA

Assignee:

Medical Components, Inc. - Harleysville PA

International Classification:

A61M 2900

US Classification:

606191, 60416405

Abstract:

A releasably locking dilator and sheath assembly and methods for releasing the dilator from the sheath and longitudinally splitting the sheath are provided. The assembly includes a dilator having a dilator hub and a sheath having a sheath hub. The sheath hub has two opposing winged tabs, each tab having a perpendicular portion and an angled portion as well as a female threaded portion. The dilator hub has a male threaded portion designed to engage the female threaded portion of the sheath hub. The dilator is released from the sheath by rotating the dilator 90Â in relation to the sheath and pulling the dilator out of the sheath. The sheath is longitudinally split by creating a couple on each of the winged tabs thereby forcing the sheath and the sheath hub to split longitudinally. With the sheath and sheath hub split longitudinally, the sheath is removed from around a catheter while leaving the catheter in place.

US Patent:

7806889, Oct 5, 2010

Filed:

Oct 19, 2006

Appl. No.:

11/592579

Inventors:

J. Daniel Raulerson - Brewton AL, US
John Stephens - Perkiomenville PA, US
Mahase Nardeo - Collegeville PA, US

Assignee:

Medical Components, Inc. - Harleysville PA

International Classification:

A61M 25/00

US Classification:

604523

Abstract:

A multiple catheter assembly () including a first catheter () having a first proximal end region (), a first distal end region () terminating in a first distal tip (), and an outer surface () defining at least a first lumen () extending longitudinally therethrough between a first distal and a first proximal opening. The assembly () also includes a second catheter () having a second proximal end region (), a second distal end region () terminating in a second distal tip (), and a second outer surface () defining at least a second lumen () extending longitudinally therethrough between a second distal and a second proximal opening. The first () and second () lumens are independent from each other for facilitating simultaneous flow in opposite directions. The outer surfaces () of the first and second catheters are releasably joined for allowing the first and second distal tips () and first and second proximal end regions () to be at least partially longitudinally split from each other. A method of inserting the catheter assembly () is also provided that includes a method of attaching a hub to the catheter assembly.

US Patent:

7918817, Apr 5, 2011

Filed:

Oct 27, 2004

Appl. No.:

10/974267

Inventors:

Donald A. Schon - Paradise Valley AZ, US
John Stephens - Perkiomenville PA, US
Timothy Schweikert - Levittown PA, US
Kevin Sanford - Chalfont PA, US
Mahase Nardeo - Collegeville PA, US

Assignee:

Medical Components, Inc. - Harleysville PA
TwinCath LLC - Paradise Valley AZ

International Classification:

A61M 3/00

US Classification:

604 43, 604264, 604 9301

Abstract:

A multiple catheter assembly () including a first catheter () constructed from a first material and having a first proximal end region (), a first distal end region () terminating in a first distal tip (), and an outer surface () defining at least a first lumen () extending longitudinally therethrough between a first distal () and a first proximal () opening. The first proximal end region () is integrally connected to an extension tube () constructed from a second material. A second catheter () is constructed from the first material and having a second proximal end region (), a second distal end region () terminating in a second distal tip (), and a second outer surface () defining at least a second lumen () extending longitudinally therethrough between a second distal () and a second proximal () opening. The second proximal end region () is integrally connected to an extension tube () constructed from the second material. The first lumen () and the second lumen () are independent from each other for facilitating simultaneous flow in opposite directions.

US Patent:

8052646, Nov 8, 2011

Filed:

Jul 1, 2008

Appl. No.:

12/165896

Inventors:

Timothy Schweikert - Levittown PA, US
Mahase Nardeo - Collegeville PA, US

Assignee:

Medical Components, Inc. - Harleysville PA

International Classification:

A61M 5/178

US Classification:

60416704, 604264

Abstract:

A releasably locking dilator and sheath assembly and methods for releasing the dilator from the sheath and longitudinally splitting the sheath are provided. The assembly includes a dilator having a dilator hub and a sheath having a sheath hub. The sheath hub has a valve and two opposing winged tabs, each tab having a perpendicular portion and an angled portion as well as a female threaded portion. The dilator hub has a male threaded portion designed to engage the female threaded portion of the sheath hub. The dilator is released from the sheath by rotating the dilator 90 in relation to the sheath and pulling the dilator out of the sheath. The sheath is longitudinally split by creating a couple on each of the winged tabs thereby forcing the sheath and the sheath hub to split longitudinally. With the sheath and sheath hub split longitudinally, the sheath is removed from around a catheter while leaving the catheter in place.

US Patent:

8147452, Apr 3, 2012

Filed:

Jan 27, 2009

Appl. No.:

12/360614

Inventors:

Mahase Nardeo - Collegeville PA, US
Trevor Spence - Lancaster PA, US

Assignee:

Medical Components, Inc. - Harleysville PA

International Classification:

A61M 5/178
A61M 25/00

US Classification:

604161, 60416401, 604264

Abstract:

A tearaway introducer sheath assembly () for use in implantation of a catheter into a patient, having an elongated polytetrafluoroethylene sheath tube () and a proximal polyethylene hub component (). The hub comprises two halves () insert molded about the sheath tube proximal end and joined to each other by frangible webs () enabling manual splitting. At least one pair of opposed holes () is formed through the tube proximal end portion , and a polyethylene liner () is inserted into the tube's proximal end portion. The polyethylene flows into the at least one pair of holes () to fuse with the liner, establishing a pair of physical joints () integrally joining the liner () to a respective hub half (). Upon manual splitting of the hub halves, the sheath tube easily splits along its length as a result of a property of the polytetrafluoroethylene material.

US Patent:

8226633, Jul 24, 2012

Filed:

Nov 4, 2009

Appl. No.:

12/611991

Inventors:

David F. Markel - Collegeville PA, US
Timothy Schweikert - Levittown PA, US
Mark S. Fisher - Sellersville PA, US
Earl Voorhees, Jr. - Warrington PA, US
Mahase Nardeo - Collegeville PA, US
Anthony J. Madison - Lansdale PA, US

Assignee:

Medical Components, Inc. - Harleysville PA

International Classification:

A61M 25/16
A61M 25/18
A61M 39/00
A61M 39/10
B28B 1/00
B28B 3/00
B28B 5/00
C04B 33/32
C04B 35/36

US Classification:

604533, 264635, 2643281

Abstract:

A co-axial catheter assembly (), including a first lumen () having a first distal end () and a first proximal end (), and a second lumen () having a second distal end () and a second proximal end (). The second lumen () extends co-axially with the first lumen (), wherein the second lumen is at least partially disposed within the first lumen and the second distal end extends distally of the first distal end. A method of manufacturing the catheter is also disclosed.

US Patent:

8241245, Aug 14, 2012

Filed:

Oct 8, 2004

Appl. No.:

10/961706

Inventors:

David F. Markel - Collegeville PA, US
Anthony J. Madison - Lansdale PA, US
Timothy Schweikert - Levittown PA, US
Mahase Nardeo - Collegeville PA, US
Mark Fisher - Sellersville PA, US

Assignee:

Medical Components, Inc. - Harleysville PA

International Classification:

A61M 31/00
A61M 37/00

US Classification:

604 9301

Abstract:

A co-axial catheter assembly including a first lumen having a first distal end and a first proximal end, and a second lumen having a second distal end and a second proximal end. The second lumen extends co-axially with the first lumen, wherein the second lumen is at least partially disposed within the first lumen and the second distal end extends distally of the first distal end. A catheter hub provides for fluid connections of the inner and outer lumens with respective extension tubes, and includes spacers that maintain the proximal end of the inner lumen concentrically within the proximal end of the outer lumen and the distal end of the inner lumen concentrically within the distal end of the outer lumen, respectively. Methods of manufacturing and of inserting the catheter are also disclosed.