Keith Ray Roberts

US Patent:

8063264, Nov 22, 2011

Filed:

Aug 25, 2006

Appl. No.:

11/510505

Inventors:

Michael Spearman - The Woodlands TX, US
Keith Roberts - White Bear Lake MN, US
Majid Zia - St. Paul MN, US

International Classification:

A61F 13/00
A61L 15/16
D04H 1/00

US Classification:

602 48, 424443, 424446, 442 50

Abstract:

A wound dressing and a method for enhancing the clotting comprising a plurality of hydrophilic microfibers bonded to each other to form a mat with the plurality of microfibers having a pore size sufficiently small to inhibit wicking platelets from a wound into the microfibers so that when applied to a wound the blood coagulates and the microfibers remain external to the wound.

US Patent:

20190192318, Jun 27, 2019

Filed:

Mar 6, 2019

Appl. No.:

16/293715

Inventors:

Michael R. Spearman - The Woodlands TX, US
John Henry Burban - Lake Elmo MN, US
John William Shanahan - White Bear Lake MN, US
Keith A. Roberts - Dellwood MN, US
Peter Joseph Catalano - Newton MA, US

International Classification:

A61F 2/82
A61L 31/14
A61L 31/04
A61L 31/10

Abstract:

A polymeric stent having a length, an outer surface and a cross-section. A lumen passes through the entire length, the lumen having a surface forming an equivalent diameter in the polymeric stent. The polymeric stent includes a first aqueous-swellable, biocompatible and biodegradable composition (e.g., polymer) having a thickness. The aqueous-swellable and biodegradable polymer retaining structural integrity for at least 1 hours up to thirty days when swollen to between 15% and 500% of its dry diameter and kept moist by a moist aqueous environment. Barrier layers of biodegradable polymer(s) may be used to prevent migration of liquids into the lumen.

US Patent:

20180071118, Mar 15, 2018

Filed:

Sep 15, 2016

Appl. No.:

15/266659

Inventors:

Michael R. Spearman - The Woodlands TX, US
John Henry Burban - Lake Elmo MN, US
John William Shanahan - White Bear Lake MN, US
Keith A. Roberts - Dellwood MN, US
Peter Joseph Catalano - Newton MA, US

International Classification:

A61F 2/82
A61L 31/14
A61L 31/10
A61L 31/04
A61L 31/06

Abstract:

A polymeric stent having a length, an outer surface and a cross-section. A lumen passes through the entire length, the lumen having a surface forming an equivalent diameter in the polymeric stent. The polymeric stent includes a first aqueous-swellable, biocompatible and biodegradable composition (e.g., polymer) having a thickness. The aqueous-swellable and biodegradable polymer retaining structural integrity for at least 1 hours up to thirty days when swollen and kept moist by a moist aqueous environment. Barrier layers of biodegradable polymer(s) may be used to prevent migration of liquids into the lumen.

US Patent:

20160184564, Jun 30, 2016

Filed:

Dec 31, 2014

Appl. No.:

14/586962

Inventors:

Michael R. Spearman - The Woodlands TX, US
John Henry Burban - Lake Elmo MN, US
John William Shanahan - White Bear Lake MN, US
Keith A. Roberts - Dellwood MN, US

International Classification:

A61M 31/00

Abstract:

A delivery device for a method of targeted delivery of materials to nasal tissue uses: