DOUGLAS G EVANS
Engineers in Downingtown, PA

2008008, Apr 3, 2008

Jul 12, 2006

11/457147

Douglas G. Evans - Downingtown PA, US
John E. Nash - Chester Springs PA, US
Steven J. Link - Phoenixville PA, US

A61M 5/178

60416413

A guide wire exchange system including an elongate, flexible, guide wire exchange catheter capable exchanging one guide wire for another in a safe, efficient, and secured manner, where a primary guide wire, after having been advanced through the body, is to be replaced with a secondary guide wire that is to be securely advanced through the body to the target site by the advancement of the exchange catheter over the path, of the primary wire. The exchange catheter may include a securement element in order to releasably secure at least one guide wire to the exchange catheter at or near the distal end of the exchange catheter. Once secured, both the exchange catheter and the secured guide wire(s) may be advanced or retracted in a synchronous manner, without the possibility of divergence at the distal ends of the secured components as they are being manipulated by an operator.

5861004, Jan 19, 1999

Aug 29, 1997

8/921270

Kenneth Kensey - Chester Springs PA
John E. Nash - Downingtown PA
Douglas G. Evans - Downingtown PA

Kensey Nash Corporation - Exton PA

A61B 1700

606213

A system for sealing a percutaneous puncture in a blood vessel in a living being and method of use thereof. The system includes a hemostatic closure, a blood vessel locator device for determining the position of the blood vessel via the percutaneous puncture, and a deployment instrument for deploying the closure within the puncture to seal the puncture. The vessel locator includes means for enabling blood from the vessel to flow therethrough so that the position of the vessel can be rapidly determined. Once the vessel has been located the deployment instrument, which includes a tubular carrier storing the closure, is extended into the puncture to deploy the closure. The closure basically comprises a radiopaque rigid anchor for location within the blood vessel, a compressed collagen plug for location within the puncture tract leading to the vessel, and a thin filament connecting the two in a pulley-like arrangement. The deployment instrument also includes a tamper which is used to mechanically deform the plug within the tract. Once the closure is positioned hemostasis occurs rapidly, thereby locking the closure in place.

6007563, Dec 28, 1999

Oct 7, 1998

9/168429

John E. Nash - Downingtown PA
Douglas G. Evans - Downingtown PA
Kenneth Kensey - Chester Springs PA

Kensey Nash Corporation - Exton PA

A61B 1700

606213

A system for sealing a percutaneous puncture in a blood vessel in a living being and a method of sealing the puncture. The system includes a hemostatic closure, a blood vessel locator device for determining the position of the blood vessel via the percutaneous puncture, and a deployment instrument for deploying the closure within the puncture to seal the puncture. The vessel locator includes means for enabling blood from the vessel to flow therethrough so that the position of the vessel can be rapidly determined. Once the vessel has been located the deployment instrument, which includes a tubular carrier storing the closure, is extended into the puncture to deploy the closure. The closure basically comprises a radiopaque rigid anchor for location within the blood vessel, a compressed collagen plug for location within the puncture tract leading to the vessel, and a thin filament connecting the two in a pulley-like arrangement. The deployment instrument also includes a tamper which is used to mechanically deform the plug within the tract. Once the closure is positioned hemostasis occurs rapidly, thereby locking the closure in place.

6056762, May 2, 2000

May 22, 1997

8/861584

John E. Nash - Downingtown PA
Douglas G. Evans - Downingtown PA

Kensey Nash Corporation - Exton PA

A61B 1700

606153

A system and method of use for effecting the bypass or other anastomosis of a portion of a native blood vessel, duct, lumen or other tubular organ within the body of a living being. The system includes an anastomosis connector device and a deployment instrument for carrying the device to the desired position within the vessel, duct, lumen or tubular organ. The deployment device may include a dilator to facilitate the placement of the anastomosis device within the interior of the vessel, duct, lumen or other tubular organ. The anastomosis device is preferably formed of a resorbable material and is configured to minimize blood or other fluid turbulence therethrough. The device may include snap-connectors or other components for securing it to the tissue of the vessel, duct, lumen or tubular organ and hemostasis-inducing sealing rings to prevent blood leakage. Other components may be included in the device for expediting the anastomosis procedure, with or without the use of sutures.

5922022, Jul 13, 1999

Dec 31, 1997

9/002267

John E. Nash - Downingtown PA
Douglas G. Evans - Downingtown PA

Kensey Nash Corporation - Exton PA

A61F 206

623 1

A system and method of use for effecting the bypass or other anastomosis of a portion of a native blood vessel, duct, lumen or other tubular organ within the body of a living being. The system includes a connector assembly and a deployment instrument for carrying the device to the desired position within the vessel, duct, lumen or tubular organ. The system includes a piercer-dilator instrument to form an opening in the wall of the vessel, duct, lumen or tubular organ into which the connector assembly is deployed by the deployment instrument. The connector assembly is at least partially formed of a resorbable material and includes movable members for securing it to the tissue of the vessel, duct, lumen or tubular organ contiguous with the opening. Other components may be included in the device for expediting the anastomosis procedure, with or without the use of sutures. Moreover, the system can be used to bypass of at least two coronary arteries by a common connection with the aorta utilizing at least two bypass grafts, a single upstream anastomosis connector, a pair of downstream anastomosis connectors, and a common bifurcated midstream anastomosis connector, for securement between the aorta and the coronary arteries.

7049348, May 23, 2006

Aug 15, 2002

10/222593

Douglas G Evans - Downingtown PA, US
Jeffrey C Kelly - Wilmington DE, US
Todd M DeWitt - Pottstown PA, US

Kensey Nash Corporation - Exton PA

C08J 9/00

521 82, 521 97, 521182, 424426

Devices and processes (e. g. , improved Plasticized Melt Flow processes (PMF) or improved Phase Separation Polymer Concentration (PSPC), etc. ) used to make resorbable and non-resorbable structures for treating and/or healing of tissue defects are disclosed. Among the advantages of using these improved processes are the preservation of molecular weight and the broadening of the processing conditions for temperature sensitive polymers and therapies This reduction in processing temperature, pressure and time can help to preserve the molecular weight and/or integrity of the final product or any additive incorporated therein. The present invention relates to an improved porous implant wherein the pores of the implant present a second modeling material on their surfaces. This second material provides a textured or roughened face to the internal surfaces of pores. Additionally, this second material can be incorporated in sufficient quantity to, among other things, create a microporous network connecting interior closed cell pores with the exterior of the device.

7674253, Mar 9, 2010

Aug 18, 2006

11/465767

William T. Fisher - Schwenksville PA, US
David E. Yaeger - Ivyland PA, US
John E. Nash - Chester Springs PA, US
Douglas G. Evans - Downingtown PA, US

Kensey Nash Corporation - Exton PA

A61M 25/00

604528

In an embodiment, the invention provides a catheter suitable for use in performing a procedure within a vessel, lumen or organ of a living having a distal end which is steerable, such as upon the application of compression. The catheter may be of the over the wire type, or alternatively may be a rapid exchange catheter. The catheter may provide for a rotating element which may be used to open a clogged vessel, or alternatively to provide information about adjacent tissues, such as may be generated by imaging or guiding arrangements using tissue detection systems known in the art, e. g. , ultrasound, optical coherence reflectometry, etc. For rapid exchange catheters having a rotating element, there is provided an offset drive assembly to allow the rotary force to be directed from alongside the guidewire to a location coaxial to and over the guidewire.

2011004, Feb 24, 2011

Nov 2, 2010

12/917912

Douglas G. Evans - Downingtown PA, US

A61B 17/00

606151

A system for repairing a vertebral disc defect, such as hernia or bulge, a full or partial tear in the annulus, or a weakened annulus wall as a result of an excision procedure. The system introduces a treatment device arranged to repair the defect, and may prevent the leakage of fluid from the nucleus. The components of the device may be resorbable materials, and may induce the ingrowth of cellular material into the components. The system may feature a locating device to ensure proper placement of the treatment device.

8425619, Apr 23, 2013

Nov 16, 2010

12/947822

Douglas G Evans - Downingtown PA, US
Scott M. Goldman - Paoli PA, US
Russell T. Kronengold - Lansdale PA, US

Kensey Nash BVF Technology, LLC - Wilmington DE

A61F 2/28

623 2351, 623 2356, 623 2361

An implant for deployment in select locations or select tissue for regeneration of tissue is disclosed. The implant includes collagen and or other bio-resorbable materials, where the implant may also be used for therapy delivery.

7892291, Feb 22, 2011

Oct 7, 2008

12/246980

Douglas G Evans - Downingtown PA, US
Scott M. Goldman - Paoli PA, US
Russell T. Kronengold - Lansdale PA, US

Kensey Nash BVF Technology, LLC - Wilminton DE

A61F 2/28

623 2351, 623 2356, 623 2358, 623 2361

An implant for deployment in select locations or select tissue for regeneration of tissue is disclosed. The implant includes collagen and or other bio-resorbable materials, where the implant may also be used for therapy delivery. Additionally, the implant may include, or have blended in, an additive, such as an osteoinductive factor, for example biocompatible ceramics and glass.