Joseph F Fitzgerald

US Patent:

45683336, Feb 4, 1986

Filed:

Jul 6, 1983

Appl. No.:

6/511256

Inventors:

Philip N. Sawyer - Brooklyn NY
Joseph Fitzgerald - Newport NY

International Classification:

A61M 500

US Classification:

604122

Abstract:

A flow control device which consists of a tubular body having radial sets of orifices therein covered by a resilient member which defines an annular space to which the orifices are connected. The resilient member permits positive pressure to drive fluid through the orifices but prevents negative pressure from sucking air through the orifices. A spring urges the resilient member against one of the sets of orifices.

US Patent:

47227257, Feb 2, 1988

Filed:

May 11, 1987

Appl. No.:

7/053495

Inventors:

Philip N. Sawyer - Brooklyn NY
Joseph F. Fitzgerald - Queens NY

Assignee:

Interface Biomedical Laboratories, Inc. - Brooklyn NY

International Classification:

A61M 500

US Classification:

604 27

Abstract:

Methods for preventing the introduction of air into the vascular system of a patient during intravenous or intraarterial procedures, as well as for preventing the reflex of fluids into the body of a patient. Also, novel fluid directing means and catheters which include integal or attached fluid flow control means for use in these methods.

US Patent:

46843647, Aug 4, 1987

Filed:

Apr 12, 1983

Appl. No.:

6/484205

Inventors:

Philip N. Sawyer - Brooklyn NY
Joseph F. Fitzgerald - Queens NY

Assignee:

Interface Biomedical Laboratories Corporation - Brooklyn NY

International Classification:

A61M 500

US Classification:

604123

Abstract:

An intravenous system is provided which includes a source of intravenous fluid, a needle or catheter for insertion into the vascular system of a patient, a pump for pumping the intravenous fluid via the needle or catheter into the patient and catheters coupling the pump to the source and to the needle. The pump includes an arrangement to terminate pumping upon an opening upon one of the catheters to ambient atmosphere. A flow control is provided in at least one of the catheters to prevent movement of air through the corresponding catheters into the patient.

US Patent:

47846445, Nov 15, 1988

Filed:

May 15, 1987

Appl. No.:

7/050589

Inventors:

Philip N. Sawyer - Brooklyn NY
Joseph F. Fitzgerald - Queens NY
Lester F. Miller - Danbury CT

Assignee:

Interface Biomedical Laboratories Corp. - Brooklyn NY

International Classification:

A61M 2500

US Classification:

604122

Abstract:

A method for preventing the introduction of air into the vascular system of a patient during intravenous or intra-arterial procedures, as well as for preventing the reflux of fluids into the body of a patient. Also, novel fluid directing means and catheters which include integral or attached fluid flow control means for use in this method.