Phillip A Estepa from 4131 Lymer Dr, San Diego, CA 92116, age 62, Phone: 8583613459

Pen Injection Device And Method Of Using Same
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US Patent:

8636689, Jan 28, 2014
Filed:

Jul 16, 2008
Appl. No.:

12/669255
Inventors:

Victor Wei-Chung Chang - San Diego CA, US
Phillip A. Estepa - San Diego CA, US
Tyler J. Holschlag - Encinitas CA, US
Philip J. Simpson - Encinitas CA, US
David G. Matsuura - Encinitas CA, US
Assignee:

Amylin Pharmaceuticals, LLC - San Diego CA
Astrazeneca Pharmaceuticals LP - Wilmington DE
International Classification:

A61M 37/00
US Classification:

604 88
Abstract:

Pen injection devices () and methods of using a pen injection device are disclosed. Pen injection devices include a sterile dual transfer spike assembly () including a dual transfer spike defining a fluidic pathway; a first cartridge assembly () including a first cartridge () containing a first substance; a second cartridge assembly () including a second cartridge () containing a second substance; a plunger rod () translatable in a first direction; and a biasing mechanism () configured to bias the plunger rod in a second direction opposite the first direction. Methods of using a pen injection device having a first container, a second container, a plunger rod, and a biasing mechanism include activating the pen injection device, thereby creating a fluidic pathway between the first container and the second container; and translating the plunger rod at least once, thereby transferring a first substance from one container to the other container to mix with a second substance.

Wire Reinforced Articulation Segment
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US Patent:

20040024413, Feb 5, 2004
Filed:

Jul 31, 2002
Appl. No.:

10/210616
Inventors:

David Lentz - La Jolla CA, US
Phillip Estepa - San Diego CA, US
International Classification:

A61F011/00
US Classification:

606/108000
Abstract:

A device for steering a cardiac cryoablation catheter through the vasculature of a patient includes separate first and second deflection members that connect a tip member to the distal end of a catheter tube. Importantly, the first deflection member has a first flexural modulus, and the second deflection member has a second flexural modulus that is greater than the first flexural modulus. Also included is a control wire for pulling the tip member toward the catheter tube. In response, the first and second deflection members differentially deflect, according to their respective flexural moduli, to move the tip member for steering the catheter through the vasculature.

Hypodermic Needle Assembly Having A Transition Hub For Enhancing Fluid Dynamics And Microsphere Injectability
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US Patent:

20130096531, Apr 18, 2013
Filed:

Jan 7, 2011
Appl. No.:

13/520965
Inventors:

Phillip A. Estepa - San Diego CA, US
Reynaldo B. Halili - San Diego CA, US
Christine P. Thai - San Diego CA, US
Quanmin Chen - Germantown MD, US
Ge Bai - Germantown MD, US
Assignee:

Amylin Pharmaceuticals, Inc. - San Diego CA
International Classification:

A61M 5/32
US Classification:

604506, 604240
Abstract:

A hypodermic needle assembly and a method of delivering a microsphere drug. A hypodermic needle assembly includes an injection needle; an injection device; and a hub defining a cavity including a transition portion having a first end and a second end between the first end and an inlet of the injection needle and having a gradually decreasing diameter from the first end to the second end, wherein the hub is coupled between the injection needle and the injection device such that the first end is in fluidic communication with an outlet of the injection device and the second end is in fluidic communication with the inlet of the injection needle, wherein the diameter of the cavity at the first end is larger than an outlet diameter of the injection device, and wherein the diameter at the second end is substantially the same as an inlet diameter of the injection needle.

Phillip A Estepa