Michael J Paris

US Patent:

6814718, Nov 9, 2004

Filed:

Dec 19, 2001

Appl. No.:

10/025506

Inventors:

Paul Tashjian - King of Prussia PA
Michael W. Paris - Hatfield PA
Peter W. J. Hinchliffe - Downington PA

Assignee:

Rex Medical, L.P - Conshohocken PA

International Classification:

A61M 2500

US Classification:

604264, 604 43, 604107, 604509, 604510

Abstract:

A dialysis catheter comprising a catheter body having a proximal portion, a distal portion, a first longitudinally extending central lumen configured to deliver blood, and at least three longitudinally extending lumens positioned radially of the central lumen and configured to withdraw blood from a patient. At least one blood delivery opening is formed in the distal portion of the catheter body and in fluid communication with the first lumen and configured for passage of blood therethrough. At least three blood withdrawal openings are formed in the outer wall of the catheter body, wherein each of the openings is in fluid communication with one of the at least three lumens and is configured for passage of blood from a patient.

US Patent:

6858019, Feb 22, 2005

Filed:

Dec 19, 2001

Appl. No.:

10/025505

Inventors:

Paul Tashjian - King of Prussia PA, US
Michael W. Paris - Hatfield PA, US
Peter W. J. Hinchliffe - Downington PA, US

Assignee:

Rex Medical, L.P. - Conshohocken PA

International Classification:

A61M003/00
A61M031/00

US Classification:

604 43, 604508

Abstract:

A method of inserting a dialysis catheter into a patient comprising the steps of inserting a guidewire into the jugular vein of the patient through the superior vena cava and into the inferior vena cava, providing a trocar having a lumen and a dissecting tip, inserting the trocar to enter an incision in the patient and to create a subcutaneous tissue tunnel, threading the guidewire through the lumen of the trocar so the guidewire extends through the incision, providing a dialysis catheter having first and second lumens, removing the trocar, and inserting the dialysis catheter over the guidewire through the incision and through the jugular vein and superior vena cava into the right atrium.

US Patent:

7074213, Jul 11, 2006

Filed:

Aug 23, 2004

Appl. No.:

10/924075

Inventors:

Paul Tashjian - King of Prussia PA, US
Michael W. Paris - Hatfield PA, US
Peter W. J. Hinchliffe - Downington PA, US

Assignee:

Rex Medical, L.P. - Conshohocken PA

International Classification:

A61M 25/00

US Classification:

604264

Abstract:

A dialysis catheter comprising a catheter body having a proximal portion, a distal portion, a first longitudinally extending central lumen configured to deliver blood, and at least three longitudinally extending lumens positioned radially of the central lumen and configured to withdraw blood from a patient. At least one blood delivery opening is formed in the distal portion of the catheter body and in fluid communication with the first lumen and configured for passage of blood therethrough. At least three blood withdrawal openings are formed in the outer wall of the catheter body, wherein each of the openings is in fluid communication with one of the at least three lumens and is configured for passage of blood from a patient.

US Patent:

7390322, Jun 24, 2008

Filed:

Sep 10, 2004

Appl. No.:

10/939102

Inventors:

Paul Tashjian - King of Prussia PA, US
Michael W. Paris - Hatfield PA, US
Peter W. J. Hinchliffe - Downington PA, US

Assignee:

Rex Medical, L.P. - Conshohocken PA

International Classification:

A61M 31/00

US Classification:

604500, 604508, 604510

Abstract:

A method of inserting a dialysis catheter into a patient comprising the steps of inserting a guidewire into the jugular vein of the patient through the superior vena cava and into the inferior vena cava, providing a trocar having a lumen and a dissecting tip, inserting the trocar to enter an incision in the patient and to create a subcutaneous tissue tunnel, threading the guidewire through the lumen of the trocar so the guidewire extends through the incision, providing a dialysis catheter having first and second lumens, removing the trocar, and inserting the dialysis catheter over the guidewire through the incision and through the jugular vein and superior vena cava into the right atrium.

US Patent:

7799014, Sep 21, 2010

Filed:

Aug 23, 2004

Appl. No.:

10/924076

Inventors:

Paul Tashjian - King of Prussia PA, US
Michael W. Paris - Hatfield PA, US
Peter W. J. Hinchliffe - Downington PA, US

Assignee:

Rex Medical, L.P. - Conshohocken PA

International Classification:

A61M 25/00

US Classification:

604524

Abstract:

A dialysis catheter comprising a catheter body having a proximal portion, a distal portion, a first longitudinally extending central lumen configured to deliver blood, and at least three longitudinally extending lumens positioned radially of the central lumen and configured to withdraw blood from a patient. At least one blood delivery opening is formed in the distal portion of the catheter body and in fluid communication with the first lumen and configured for passage of blood therethrough. At least three blood withdrawal openings are formed in the outer wall of the catheter body, wherein each of the openings is in fluid communication with one of the at least three lumens and is configured for passage of blood from a patient.

US Patent:

8366651, Feb 5, 2013

Filed:

Aug 4, 2008

Appl. No.:

12/185811

Inventors:

Adam Dakin - Blue Bell PA, US
Michael Dugery - Doylestown PA, US
Todd Polk - Doylestown PA, US
Richard Briganti - Philadelphia PA, US
Michael Paris - Lansdale PA, US
Nicholas Gately - Lambertville NJ, US
Zaw N. Win - Philadelphia PA, US

Assignee:

Bioconnect Systems, Inc. - Ambler PA

International Classification:

A61M 5/00
A61M 5/32

US Classification:

604 8, 604175

Abstract:

An implantable flow connector for fluidically coupling a source tissue-enclosed body space with a destination element, comprising: a conduit having a lumen terminating at an orifice at a first end of the conduit implantable in the source body space through an opening formed in a tissue wall of the source body space, and a second end of the conduit implantable in the destination element through an opening in a surface of the destination element; and a circumferential flange, radially extending from the conduit proximate the conduit first end, configured to be implanted in the source body space adjacent an opening in the tissue wall of the source body space such that the conduit extends through the opening, the flange comprising one or more circumferentially adjacent sections at least one of which has a rigidity that decreases in a radially-increasing direction.

US Patent:

20070066987, Mar 22, 2007

Filed:

Sep 9, 2005

Appl. No.:

11/223085

Inventors:

Donald Scanlan - Huntingdon Valley PA, US
Dean Entrekin - Downingtown PA, US
Michael Paris - Lansdale PA, US
Charanpreet Bagga - Phoenixville PA, US
Matthew Hollenbeck - Conshohocken PA, US

International Classification:

A61B 17/32
A61B 17/34
A61B 10/00

US Classification:

606184000, 600564000, 600567000, 606185000

Abstract:

Novel devices and systems are provided to provide safe navigation through cancellous bone marrow spaces attendant to the harvesting of bone marrow. In accordance with a featured embodiment, these comprise a rigid, self re-directing stylet having a proximal, mating end for cooperating with a cannula handle together with a distal end having a convex geometry, such as a dome.

US Patent:

20070078412, Apr 5, 2007

Filed:

Jun 9, 2006

Appl. No.:

11/450195

Inventors:

James McGuckin - Radnor PA, US
Michael Paris - Hatfield PA, US
Paul Tashjian - King of Prussia PA, US
Peter Hinchliffe - Campbell Hall NY, US

International Classification:

A61M 25/00

US Classification:

604264000

Abstract:

A dialysis catheter comprising a first portion having a first diameter, an elongated distal portion having a second diameter smaller than the first diameter, and a transition region between the first portion and distal portion. A first longitudinally extending central lumen configured to deliver blood terminates in an opening in the distal portion. At least two independent longitudinally extending lumens are positioned radially of the first lumen, configured to withdraw blood from a patient, and terminate in a longitudinally directed opening in the transition portion.