John C Lapszynski

US Patent:

7332117, Feb 19, 2008

Filed:

May 17, 2004

Appl. No.:

10/847077

Inventors:

Paul Higham - Ringwood NJ, US
John Lapszynski - Oak Ridge NJ, US
Chau Ngo - Secaucus NJ, US

Assignee:

Howmedica Osteonics Corp. - Mahwah NJ

International Classification:

B29C 71/00

US Classification:

264232, 2643281, 264233, 264234

Abstract:

A high strength hydrogel having a constant swelling pressure upon implantation and thereafter is formed by preparing a hydrogel solution and then injecting the solution into a mold and cause to gel. The molded gel is then washed in a saline solution from about one day to twelve weeks, after which the gel is irradiated for sterilization purposes, dehydrated and packaged. The pre-treatment with the use of a physiologic solution results in an implant which exhibits a constant swelling pressure profile after implantation.

US Patent:

20030080465, May 1, 2003

Filed:

Oct 30, 2001

Appl. No.:

10/020389

Inventors:

Paul Higham - Ringwood NJ, US
Philip Williams - Allendale NJ, US
John Lapszynski - Oak Ridge NJ, US
Chau Ngo - Secaucus NJ, US

International Classification:

B29C071/00
B29C045/00

US Classification:

264/232000, 264/328100, 264/233000, 264/234000

Abstract:

A high strength hydrogel having a constant swelling pressure upon implantation and thereafter is formed by preparing a hydrogel solution and then injecting the solution into a mold and cause to gel. The molded gel is then washed in a saline solution from about one day to twelve weeks, after which the gel is irradiated for sterilization purposes, dehydrated and packaged. The pre-treatment with the use of a physiologic solution results in an implant which exhibits a constant swelling pressure profile after implantation.

US Patent:

20100297462, Nov 25, 2010

Filed:

Nov 13, 2007

Appl. No.:

12/514342

Inventors:

John Lapszynski - Oak Ridge NJ, US
Robert W. Klein - Chestnut Ridge NY, US
Michael A. DeLuise - Paramus NJ, US

Assignee:

HOWMEDICA OSTEONICS CORP. - Mahwah NJ

International Classification:

B32B 15/02
B22F 3/02
B22F 3/04
B22F 3/15
B22F 1/00

US Classification:

428548, 419 66, 419 68, 419 49, 75228, 75246, 75245, 419 65

Abstract:

In one embodiment, the present invention may be a method of forming a porous and/or dense article from metal powder (), including adding to a mold a first feedstock comprising an agglomerated metal powder () and an agglomeration agent, forming said first feedstock into a green state dense article (); and removing said agglomeration agent. Furthermore, the present invention may include a second feedstock including an agglomerated metal powder (), a space filling material and an agglomeration agent which may be formed into a green state porous article (). The present invention also includes a dense and/or porous article ( and ) manufactured by various methods, as well as methods for creating the dense and porous feedstocks. Moreover, the present invention may include an article which may be a medical implant.

Address:

43 Paderewski Rd, Oak Ridge, NJ 07438

Phone:

973 697-5185

VIN:

3VWPF71K87M066970

Make:

VOLKSWAGEN

Model:

JETTA

Year:

2007