Nicholas A Grimaldi

US Patent:

20130302509, Nov 14, 2013

Filed:

May 9, 2013

Appl. No.:

13/890876

Inventors:

Ramaswamy Lakshminarayanan - West Jordan UT, US
Kevin Davis - Riverton UT, US
Nicholas Grimaldi - Talbott TN, US

Assignee:

Amedica Corporation - Salt Lake City UT

International Classification:

A61L 27/02

US Classification:

427 224, 427 226

Abstract:

Methods for improving the antibacterial characteristics of biomedical implants and related implants manufactured according to such methods. In some implementations, a biomedical implant comprising a silicon nitride ceramic material may be subjected to a surface roughening treatment so as to increase a surface roughness of at least a portion of the biomedical implant to a roughness profile having an arithmetic average of at least about 500 nm Ra. In some implementations, a coating may be applied to a biomedical implant. Such a coating may comprise a silicon nitride ceramic material, and may be applied instead of, or in addition to, the surface roughening treatment process.

US Patent:

20130302512, Nov 14, 2013

Filed:

May 9, 2013

Appl. No.:

13/890880

Inventors:

Ramaswamy Lakshminarayanan - West Jordan UT, US
Ryan M. Bock - Salt Lake City UT, US
Kevin Davis - Riverton UT, US
Nicholas Grimaldi - Talbott TN, US

Assignee:

Amedica Corporation - Salt Lake City UT

International Classification:

A61L 27/02

US Classification:

427 226, 427 224, 264647

Abstract:

Methods for improving the antibacterial characteristics of a biomedical implant. In some implementations, the method may comprise providing a biomedical implant material block. The biomedical implant material block may comprise a silicon nitride ceramic material. The surface chemistry of the biomedical implant material block may be altered to improve the antibacterial characteristics of the biomedical implant material block. In some implementations, the surface chemistry may be altered by firing the biomedical implant material block in a nitrogen-rich environment or otherwise increasing the nitrogen content in the transitional oxide layer of at least a portion of the biomedical implant material block. The surface of the biomedical implant material block may also, or alternatively, be roughened to improve antibacterial characteristics of the implant.

US Patent:

20210008254, Jan 14, 2021

Filed:

Sep 23, 2020

Appl. No.:

17/029534

Inventors:

- Salt Lake City UT, US
Ramaswamy Lakshminarayanan - West Jordan UT, US
Kevin Davis - Riverton UT, US
Nicholas Grimaldi - Talbott TN, US
Giuseppe Pezzotti - Kyoto City, JP

International Classification:

A61L 31/02
A61L 31/16
A61L 31/12
A61L 31/08
A61L 27/30
A61L 31/14
A61L 27/50
A61L 27/06

Abstract:

Methods for improving the antibacterial characteristics of biomedical implants and related implants manufactured according to such methods. In some implementations, a biomedical implant comprising a silicon nitride ceramic material may be subjected to a surface roughening treatment so as to increase a surface roughness of at least a portion of the biomedical implant to a roughness profile having an arithmetic average of at least about 500 nm Ra. In some implementations, a coating may be applied to a biomedical implant. Such a coating may comprise a silicon nitride ceramic material, and may be applied instead of, or in addition to, the surface roughening treatment process.

US Patent:

20170197014, Jul 13, 2017

Filed:

Mar 27, 2017

Appl. No.:

15/470637

Inventors:

- Salt Lake City UT, US
Ramaswamy Lakshminarayanan - West Jordan UT, US
Kevin Davis - Riverton UT, US
Nicholas Grimaldi - Talbott TN, US
Giuseppe Pezzotti - Kyoto City, JP

International Classification:

A61L 31/02
A61L 31/12
A61L 31/08
A61L 31/16

Abstract:

Methods for improving the antibacterial characteristics of biomedical implants and related implants manufactured according to such methods. In some implementations, a biomedical implant comprising a silicon nitride ceramic material may be subjected to a surface roughening treatment so as to increase a surface roughness of at least a portion of the biomedical implant to a roughness profile having an arithmetic average of at least about 500 nm Ra. In some implementations, a coating may be applied to a biomedical implant. Such a coating may comprise a silicon nitride ceramic material, and may be applied instead of, or in addition to, the surface roughening treatment process.

US Patent:

20170027142, Feb 2, 2017

Filed:

Jul 29, 2015

Appl. No.:

14/812386

Inventors:

Nicholas Grimaldi - Katonah NY, US

International Classification:

A01K 85/01
A01K 85/12
A01K 85/16
A01K 85/02

Abstract:

A fishing lure is configured to prevent a fishing hook, or other organism capture device, from becoming entangled or caught on submerged or surface level flora by maintaining the hook above the water line while in use. Specifically, the fishing lure apparatus includes a swim body that has a curved profile that allows the swim body, when under user directed motion, to skim or ride across the surface of a body of water and maintain an attached hook in the upright position such that a barbed end of the hook is not submerged in the water.