Thomas John Solomon

US Patent:

7601141, Oct 13, 2009

Filed:

Nov 26, 2002

Appl. No.:

10/304833

Inventors:

W. Cary Dikeman - Leawood KS, US
Thomas J. Solomon - Bellbrook OH, US
Kerry L. Spiker - Xenia OH, US

Assignee:

Nexus Medical, LLC - Lenexa KS

International Classification:

A61M 5/00

US Classification:

604246, 604247, 604257, 604 19

Abstract:

A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.

US Patent:

7959614, Jun 14, 2011

Filed:

Jun 26, 2009

Appl. No.:

12/492370

Inventors:

W. Cary Dikeman - Leawood KS, US
Thomas J. Solomon - Bellbrook OH, US
Kerry L. Spiker - Xenia OH, US

Assignee:

Nexus Medical, LLC - Lenexa KS

International Classification:

A61M 5/00

US Classification:

604246, 604247, 604257, 604 19

Abstract:

A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.

US Patent:

8096712, Jan 17, 2012

Filed:

Oct 23, 2007

Appl. No.:

11/977022

Inventors:

Thomas Solomon - Dayton OH, US
Donald Johnson - Fairborn OH, US
Steven Mersch - Germantown OH, US

Assignee:

AT&T Intellectual Property II, L.P. - Atlanta GA

International Classification:

G02B 6/255

US Classification:

385 95, 385 96, 385 97, 385 98

Abstract:

A splicing method and splicing kit are suitable for creating a multimode mechanical splice. The splice may be used, for example, in Aircraft Battle Damage Repair operations. The splice utilizes two cylindrical inner crimp sleeves and an outer crimping assembly. The inner crimp sleeves are placed over prepared fiber cable ends, and the fiber core is cleaved. The cable ends are then inserted into an outer cannula of the outer crimping assembly. The cannula guides the inner crimp sleeves, and the cleaved fiber ends enter a glass ferrule in the cannula. The glass ferrule has a triangular bore containing an index matching gel. A window in the cannula and a magnifying viewer are provided to visually confirm the splice quality. The fibers may be cleaved by forming a circumferential score on the fiber.

US Patent:

20080086095, Apr 10, 2008

Filed:

Dec 10, 2007

Appl. No.:

11/953807

Inventors:

W. Dikeman - Leawood KS, US
Thomas Solomon - Bellbrook OH, US
Kerry Spiker - Xenia OH, US

Assignee:

Nexus Medical, L.L.C. - Lenexa KS

International Classification:

A61M 39/24

US Classification:

604247000

Abstract:

A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.

US Patent:

20130012870, Jan 10, 2013

Filed:

Sep 14, 2012

Appl. No.:

13/618002

Inventors:

W. Cary Dikeman - Lenexa KS, US
Thomas J. Solomon - Bellbrook OH, US
Kerry L. Spiker - Xenia OH, US

Assignee:

NEXUS MEDICAL, LLC - Lenexa KS

International Classification:

A61M 5/168
A61M 1/00

US Classification:

604 28

Abstract:

A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.

US Patent:

55337082, Jul 9, 1996

Filed:

Jan 26, 1995

Appl. No.:

8/378506

Inventors:

Gordon E. Atkinson - Cedarville OH
Thomas J. Solomon - Centerville OH

Assignee:

Vernay Laboratories, Inc. - Yellow Springs OH

International Classification:

F16L 3728

US Classification:

2511491

Abstract:

The present invention provides a medical coupling site which is adapted to be attached directly to a standard male luer lock fitting. The coupling site includes a valve element contained within a tubular housing. The housing is provided with a threaded portion for engaging the threaded locking collar of a male luer lock whereby the male luer lock will be held in positive mechanical locking engagement with the coupling site. The valve element is provided with rib members extending inwardly from an inner wall of the valve element toward a slit formed in a diaphragm such that the rib members act to bias the slit to a closed position. The housing includes a flange extending radially inwardly over the diaphragm and defining a diameter for frictionally engaging a male luer in locking engagement. In addition, an exposed surface of the diaphragm is formed with surface texturing to define a roughened surface. The roughened surface reduces the surface friction between the diaphragm and a male luer as the luer is inserted through the diaphragm.