Christopher S Porter

US Patent:

7604617, Oct 20, 2009

Filed:

Apr 9, 2004

Appl. No.:

10/821383

Inventors:

Christopher H. Porter - Woodinville WA, US
Claude A. Vidal - Santa Barbara CA, US
Russ J. Redmond - Goleta CA, US
Byron L. Moran - Santa Barbara CA, US

Assignee:

Medical Research Products-B, Inc. - Santa Clarita CA

International Classification:

A61M 5/32

US Classification:

604175, 623 10

Abstract:

An implantable device including a housing having a stud projecting percutaneously through an incision in the patient's skin. The stud defines a peripheral surface extending longitudinally inwardly from the stud outer end. The longitudinal peripheral surface is used as a substrate to carry a peripheral fibrous layer which extends longitudinally along the stud from its outer end adjacent to the skin incision to below the patient's epidermal and dermal skin layers for promoting laterally directed soft tissue ingrowth. The housing also defines a lateral shoulder surface oriented substantially perpendicular to the longitudinal peripheral surface. The shoulder surface also carries a porous layer conducive to promoting tissue ingrowth. The porous layers on the device allows tissue ingrowth into the interstices of both porous layers to form an enhanced infection resistant barrier while also providing improved device anchoring.

US Patent:

7731697, Jun 8, 2010

Filed:

Feb 20, 2007

Appl. No.:

11/708445

Inventors:

Christopher H. Porter - Woodinville WA, US
Claude A. Vidal - Santa Barbara CA, US
Russ J Redmond - Goleta CA, US
Byron L. Moran - Santa Barbara CA, US
Paul Kaluzniak - Simi Valley CA, US
Abram D. Janis - Valencia CA, US

Assignee:

Incumed LLC, A Nevada Limited Liability Co. - Valencia CA

International Classification:

A61M 5/32

US Classification:

604175, 604174

Abstract:

A medical apparatus and method of use for implanting a catheter in a patient's body which catheter can be easily positioned, repositioned, and replaced. The apparatus includes an elongate sleeve comprising a wall surrounding an interior passageway extending from a sleeve proximal end to a sleeve distal end. The sleeve is intended to be percutaneously implanted through an incision in the patient's skin to place the sleeve distal end subcutaneously. The sleeve distal end outer surface carries porous material intended to contact the patient's dermis to promote tissue ingrowth. The sleeve passageway is dimensioned to snugly accommodate the outer surface of the catheter while permitting the catheter to slide relative to the sleeve. A split ring locking member is selectively operable in an unlocked state for permitting axial and rotational movement of said catheter relative to said sleeve and operable in a locked state for preventing such relative movement.

US Patent:

7794431, Sep 14, 2010

Filed:

Jan 6, 2007

Appl. No.:

11/650795

Inventors:

Christopher H. Porter - Woodinville WA, US
Claude A. Vidal - Santa Barbara CA, US
Russ J. Redmond - Goleta CA, US
Byron L. Moran - Santa Barbara CA, US
Paul Kaluzniak - Simi Valley CA, US
Abram D. Janis - Valencia CA, US

Assignee:

Incumed LLC - Valencia CA

International Classification:

A61M 5/00

US Classification:

604175, 604171, 604 11

Abstract:

A medical apparatus and method of use for implanting a percutaneous catheter in a patient's body which catheter can be easily positioned, repositioned, and replaced. The apparatus includes an elongate sleeve comprising a wall surrounding an interior elongate passageway. The passageway extends from a sleeve proximal end to a sleeve distal end. The sleeve is intended to be percutaneously implanted through an incision in the patient's skin so that the sleeve distal end resides subcutaneously. The sleeve outer peripheral surface carries a layer of porous material intended to be placed just under the patient's outer skin layer in contact with the dermis to promote tissue ingrowth for anchoring the sleeve and forming an infection resistant barrier. The sleeve passageway is dimensioned to snugly accommodate the outer surface of catheter while permitting the catheter to slide relative to the sleeve. A sealing device is mounted around the catheter adjacent to the sleeve proximal end to prevent deleterious material from migrating into the patient's body along the catheter outer surface.

US Patent:

8021340, Sep 20, 2011

Filed:

Jan 26, 2009

Appl. No.:

12/321962

Inventors:

Christopher H. Porter - Woodinville WA, US
Claude A. Vidal - Santa Barbara CA, US
Russell J. Redmond - Goleta CA, US
Byron L. Moran - Santa Barbara CA, US
Abram D. Janis - Valencia CA, US
Kelly A. Chapman - Altadena CA, US

Assignee:

Incumed, LLC - Valencia CA

International Classification:

A61M 5/32

US Classification:

604175

Abstract:

A medical apparatus and method of use for implanting a percutaneous catheter in a patient's body which catheter can be easily positioned, repositioned, and replaced. The apparatus includes an elongate sleeve having a tapered forward portion to facilitate its insertion through an undersized incision. The sleeve provides an interior elongate passageway which extends from a sleeve proximal end to a sleeve distal end. The sleeve is intended to be percutaneously implanted through an incision in the patient's skin so that the sleeve distal end resides subcutaneously. The sleeve outer peripheral surface carries a layer of porous material intended to be placed under the patient's outer skin layer in contact with the dermis to promote tissue ingrowth for anchoring the sleeve and forming an infection resistant barrier. The sleeve passageway is dimensioned to snugly accommodate the outer surface of catheter while permitting the catheter to slide relative to the sleeve. A sealing device is mounted around the catheter adjacent to the sleeve proximal end to prevent deleterious material from migrating into the patient's body along the catheter outer surface.

US Patent:

20020045886, Apr 18, 2002

Filed:

Apr 13, 1999

Appl. No.:

09/290988

Inventors:

CHRISTOPHER H. PORTER - WOODINVILLE WA, US

International Classification:

A61M025/00
A61M027/00

US Classification:

604/544000, 604/104000

Abstract:

A urethral catheter includes an upper section that directs urine in a path from the bladder through a top portion of the urethra, a mid-section that includes the walls of the urethra in a path through the mid-portion of the urethra, and a lower section that directs the urine in a path through the lower portion of the urethra to a collection device. As urine flows through the mid-section of the catheter, the urine flows along the portions of the walls of the urethra that are included in the path, and thereby cleanses those portions of bacteria. The mid-section may consist of relatively widely-spaced rods, a metal mesh, or any other construction that is sufficiently rigid to maintain the shape of the path through the mid-portion of the urethra and includes spaces or gaps that include the walls of the urethra in the path provided by the mid-section.

US Patent:

20020165582, Nov 7, 2002

Filed:

Apr 25, 2002

Appl. No.:

10/133759

Inventors:

Christopher Porter - Woodinville WA, US

International Classification:

A61D001/00

US Classification:

606/213000

Abstract:

An apparatus, method and composition for embolization of a vascular site in a blood vessel. The composition is introduced via catheter to the vascular site and activated by an activator introduced by the catheter or external means. The composition polymerizes or precipitates in situ via the activation provided by the catheter or external means.

US Patent:

20050137614, Jun 23, 2005

Filed:

Oct 8, 2004

Appl. No.:

10/962200

Inventors:

Christopher Porter - Woodinville WA, US
Tuan Doan - Burnsville MN, US
Laurie Lynch - Eden Prairie MN, US

International Classification:

A61B017/08

US Classification:

606153000

Abstract:

Methods and devices are disclosed for connecting implantable body fluid conduits, such as catheters and grafts for AV shunts. A connector with thin connector walls at the lumen openings provides a connecting lumen that is close to flush with the lumens of the attached conduits. A tapered, smooth walled connector lumen allows connection of conduits with different internal diameters while preserving laminar flow in the transition between different conduit diameters. Rounding of the connector edges at the lumen openings further reduce disturbances in flow.

US Patent:

20080167595, Jul 10, 2008

Filed:

Mar 24, 2008

Appl. No.:

12/054128

Inventors:

Christopher H. Porter - Woodinville WA, US
Tuan Doan - Burnsville MN, US
Laurie E. Lynch - Eden Prairie MN, US

Assignee:

GRAFTcath Inc. - Eden Prairie MN

International Classification:

A61M 39/00

US Classification:

604 8

Abstract:

Methods and devices are disclosed for connecting implantable body fluid conduits, such as catheters and grafts for AV shunts. A connector with thin connector walls at the lumen openings provides a connecting lumen that is close to flush with the lumens of the attached conduits. A tapered, smooth walled connector lumen allows connection of conduits with different internal diameters while preserving laminar flow in the transition between different conduit diameters. Rounding of the connector edges at the lumen openings further reduce disturbances in flow.