David A Cesario

US Patent:

20100010442, Jan 14, 2010

Filed:

Nov 3, 2006

Appl. No.:

12/162474

Inventors:

Kalyanam Shivkumar - Los Angeles CA, US
David A. Cesario - Los Angeles CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

A61M 39/10

US Classification:

604122

Abstract:

This invention is an air block for industrial, medical, and non-medical uses. For example, the air block is connected to the proximal end of a vascular access catheter. The air block is either removably connected to the proximal end of the catheter or it is integral to the proximal end of the catheter. The air block permits introduction of other catheters or instrumentation through its central lumen and on into a lumen of the catheter while minimizing fluid loss or gain into the catheter. The air block further prevents air from entering the catheter and provides for removal of the air or other gas from the central lumen before it can enter the catheter where it could cause harm to the patient. The air block can be attached to various standard proximal catheter terminations including Luer fittings and hemostasis valve outer barrels.

US Patent:

20130289526, Oct 31, 2013

Filed:

Mar 5, 2013

Appl. No.:

13/785964

Inventors:

David A. Cesario - Los Angeles CA, US

International Classification:

A61M 5/36

US Classification:

604508, 604122

Abstract:

This invention is an air block for industrial, medical, and non-medical uses. For example, the air block is connected to the proximal end of a vascular access catheter. The air block is either removably connected to the proximal end of the catheter or it is integral to the proximal end of the catheter. The air block permits introduction of other catheters or instrumentation through its central lumen and on into a lumen of the catheter while minimizing fluid loss or gain into the catheter. The air block further prevents air from entering the catheter and provides for removal of the air or other gas from the central lumen before it can enter the catheter where it could cause harm to the patient. The air block can be attached to various standard proximal catheter terminations including Luer fittings and hemostasis valve outer barrels.

US Patent:

20180001037, Jan 4, 2018

Filed:

Sep 19, 2017

Appl. No.:

15/708460

Inventors:

- Oakland CA, US
David A. Cesario - Los Angeles CA, US

International Classification:

A61M 5/36
A61M 39/06
A61M 5/38
B01D 19/00
A61M 39/10

Abstract:

This invention is an air block for industrial, medical, and non-medical uses. For example, the air block is connected to the proximal end of a vascular access catheter. The air block is either removably connected to the proximal end of the catheter or it is integral to the proximal end of the catheter. The air block permits introduction of other catheters or instrumentation through its central lumen and on into a lumen of the catheter while minimizing fluid loss or gain into the catheter. The air block further prevents air from entering the catheter and provides for removal of the air or other gas from the central lumen before it can enter the catheter where it could cause harm to the patient. The air block can be attached to various standard proximal catheter terminations including Luer fittings and hemostasis valve outer barrels.