Robert C Basham

US Patent:

20220296817, Sep 22, 2022

Filed:

May 2, 2022

Appl. No.:

17/661735

Inventors:

- Newark DE, US
Robert C. Basham - Forest Hill MD, US

International Classification:

A61M 5/315
A61L 31/04

Abstract:

The present disclosure relates to a medical delivery device that includes a barrel having an inner surface, a plunger rod having a distal end inserted within the barrel, and a stopper attached to the distal end of the plunger rod and contacting at least a portion of the inner surface of the barrel. In at least one embodiment, the inner surface is hydrophilic. The stopper may include an elastomeric body, one or more fluoropolymer layers, and two or more ribs laminated with the one or more fluoropolymer layers. In some embodiments, the contact width between at least one rib having a sealing surface and the portion of the inner surface of the barrel measured at a compressibility of greater than about 7.9% of the stopper is less than about 1.0 mm.

US Patent:

20220257866, Aug 18, 2022

Filed:

May 3, 2022

Appl. No.:

17/661907

Inventors:

- Newark DE, US
Robert C. Basham - Forest Hill MD, US

International Classification:

A61M 5/315
A61L 31/04

Abstract:

The present disclosure relates to a medical delivery device that includes a barrel having an inner surface, a plunger rod having a distal end inserted within the barrel, and a stopper attached to the distal end of the plunger rod and contacting at least a portion of the inner surface of the barrel. In at least one embodiment, the inner surface is hydrophilic. The stopper may include an elastomeric body, one or more fluoropolymer layers, and two or more ribs laminated with the one or more fluoropolymer layers. In some embodiments, the contact width between at least one rib having a sealing surface and the portion of the inner surface of the barrel measured at a compressibility of greater than about 7.9% of the stopper is less than about 1.0 mm.

US Patent:

20200061296, Feb 27, 2020

Filed:

Oct 3, 2019

Appl. No.:

16/591844

Inventors:

- Newark DE, US
Robert C. Basham - Forest Hill MD, US

International Classification:

A61M 5/315
A61L 31/04

Abstract:

The present disclosure relates to a medical delivery device that includes a barrel having an inner surface, a plunger rod having a distal end inserted within the barrel, and a stopper attached to the distal end of the plunger rod and contacting at least a portion of the inner surface of the barrel. In at least one embodiment, the inner surface is hydrophilic. The stopper may include an elastomeric body, one or more fluoropolymer layers, and two or more ribs laminated with the one or more fluoropolymer layers. In some embodiments, the contact width between at least one rib having a sealing surface and the portion of the inner surface of the barrel measured at a compressibility of greater than about 7.9% of the stopper is less than about 1.0 mm.

US Patent:

20170203043, Jul 20, 2017

Filed:

Jan 12, 2017

Appl. No.:

15/404892

Inventors:

- Newark DE, US
Robert C. Basham - Forest Hill MD, US

International Classification:

A61M 5/315
A61L 31/04

Abstract:

The present disclosure relates to a medical delivery device that includes a barrel having an inner surface, a plunger rod having a distal end inserted within the barrel, and a stopper attached to the distal end of the plunger rod and contacting at least a portion of the inner surface of the barrel. In at least one embodiment, the inner surface is hydrophilic. The stopper may include an elastomeric body, one or more fluoropolymer layers, and two or more ribs laminated with the one or more fluoropolymer layers. In some embodiments, the contact width between at least one rib having a sealing surface and the portion of the inner surface of the barrel measured at a compressibility of greater than about 7.9% of the stopper is less than about 1.0 mm.