William Oa Brandt

US Patent:

6652510, Nov 25, 2003

Filed:

Dec 26, 2001

Appl. No.:

10/033377

Inventors:

Peter C. Lord - Valencia CA
William A. Brandt - Castaic CA
Scott R. Gibson - Granada Hills CA

Assignee:

Medtronic Minimed, Inc. - Northridge CA

International Classification:

A61K 922

US Classification:

6048921, 604140, 128DIG 12

Abstract:

An implantable infusion device includes of a disc-shaped housing that is made from a biocompatible material and contains a reservoir. The reservoir defines a chamber that contains at least one flexible diaphragm. A ring is provided in alignment with the peripheral edge of each diaphragm. The ring has a central opening that is aligned with the convolution and central portion of each diaphragm, to allow the diaphragm to flex within the ring. In this manner, the volume on one side of each diaphragm may be varied to correspond to a varying volume of infusion medium. Similarly, the volume within the reservoir chamber on the other side of the diaphragms is varied as the diaphragms flex, to correspond to the expansion and contraction of a propellant medium within the reservoir.

US Patent:

7186236, Mar 6, 2007

Filed:

Dec 27, 2001

Appl. No.:

10/034628

Inventors:

Scott R. Gibson - Granada Hills CA, US
William A. Brandt - Castaic CA, US
Benjamin Shen - Monterey Park CA, US

Assignee:

Medtronic Minimed, Inc. - Northridge CA

International Classification:

A61M 31/00

US Classification:

604 9301

Abstract:

An infusion device includes a disc-shaped housing that is made from a biocompatible material. The housing contains a reservoir for holding a volume of infusion medium, such as a medication to be administered to the patient. The inlet structure is coupled in flow communication with the reservoir, to allow the reservoir to be filled or re-filled. The housing has an outlet through which the infusion medium may be expelled. Any one or combination of aspects may be employed to minimize or reduce the required thickness T of the inlet structure and of the infusion device, including: the selection of a convergence angle of the cone-shaped depression to be within the range of about 60 and 180 and, preferably about 150; a septum having one or more sealing ribs or a recess for receiving a support ring, to allow the septum to be made relatively thin without compromising sealing or support functions; a cup member having grooves and indentations formed in its inner surfaces, to improve flow of infusion medium without added structural thickness; a valve member having a relatively shallow needle-receiving depression or having a recess for receiving and sharing thickness with a the spring; and an inlet configuration which accommodates a needle having an opening located near its tip and, thus, employs a relatively short stroke of the valve member between closed and open states of the valve member.

US Patent:

7628776, Dec 8, 2009

Filed:

Mar 15, 2005

Appl. No.:

11/080088

Inventors:

Scott R. Gibson - Granada Hills CA, US
William A. Brandt - Castaic CA, US
Benjamin Shen - Monterey Park CA, US

Assignee:

Medtronic MiniMed, Inc. - Northridge CA

International Classification:

A61M 37/00

US Classification:

60428801

Abstract:

An infusion device includes a disc-shaped housing that is made from a biocompatible material. The housing contains a reservoir for holding a volume of infusion medium, such as a medication to be administered to the patient. The inlet structure is coupled in flow communication with the reservoir, to allow the reservoir to be filled or refilled. The housing has an outlet through which the infusion medium may be expelled. Any one or combination of aspects may be employed to minimize or reduce the required thickness T of the inlet structure and of the infusion device, including: the selection of a convergence angle of the cone-shaped depression to be within the range of about 60 and 180 and, preferably about 150; a septum having one or more sealing ribs or a recess for receiving a support ring, to allow the septum to be made relatively thin without compromising sealing or support functions; a cup member having grooves and indentations formed in its inner surfaces, to improve flow of infusion medium without added structural thickness; a valve member having a relatively shallow needle-receiving depression or having a recess for receiving and sharing thickness with a the spring; and an inlet configuration which accommodates a needle having an opening located near its tip and, thus, employs a relatively short stroke of the valve member between closed and open states of the valve member.

US Patent:

7841494, Nov 30, 2010

Filed:

Mar 16, 2007

Appl. No.:

11/724701

Inventors:

Randall Batinkoff - Santa Monica CA, US
William Andrew Brandt - Castaic CA, US

International Classification:

B05B 11/06

US Classification:

222633, 222207, 222209

Abstract:

The invention is a pump cap that is designed to seat on top of a receptacle, which in at least one example is filled with powder or hair fibers. The cap is fitted on top with a deformable dome with an empty chamber of air within it. The cap has an air inlet with a check valve that then opens into a wide flared opening into the dome's empty chamber. The air in the dome is pushed past a check valve and down a long passageway into the receptacle to aggressively disturb the powder or hair fibers within the receptacle. The disturbed hair fibers or powder then exits the cap through a third passage with a flared opening that is flush with the bottom of the cap that then exits out the side of the cap.

US Patent:

20100274196, Oct 28, 2010

Filed:

Apr 20, 2010

Appl. No.:

12/763504

Inventors:

William A. Brandt - Castaic CA, US
Daniel H. Villegas - Granada Hills CA, US

International Classification:

A61M 5/14

US Classification:

604175

Abstract:

Implantable infusion devices configured to improve fill and evacuation procedures.

US Patent:

20220313987, Oct 6, 2022

Filed:

Mar 1, 2022

Appl. No.:

17/683598

Inventors:

- Valencia CA, US
Oren Gotlib - Agoura Hills CA, US
Joseph Calderon - Santa Clarita CA, US
William Andrew Brandt - Castaic CA, US
Neil Talbot - La Crescenta CA, US

Assignee:

The Alfred E. Mann Foundation for Scientific Research - Valencia CA

International Classification:

A61N 1/05
A61N 1/375
H01R 13/52

Abstract:

An electrode that includes an elongate lead body and a nerve cuff. The nerve cuff may include a biologically compatible, elastic, electrically insulative cuff body configured to be circumferentially disposed around a nerve, first and second relatively wide electrically conductive contacts carried by the cuff body that are spaced from one another in the length direction and that extend in the width direction to such an extent that they extend completely around the cuff body inner lumen when the cuff body is in the pre-set furled shape, and a plurality of relatively narrow electrically conductive contacts carried by the cuff body that are spaced from one another in the width direction and are located between the first and second relatively wide electrically conductive contacts.

US Patent:

20190269850, Sep 5, 2019

Filed:

Mar 1, 2019

Appl. No.:

16/290501

Inventors:

- Pasadena CA, US
Gregory Harbers - Montrose CA, US
Richard Purvis - Pasadena CA, US
Miho Matsuoka - Rosemead CA, US
Andrew Urazaki - Las Vegas NV, US
Mark Humayun - Glendale CA, US
William Andrew Brandt - Castaic CA, US
Atoosa Lotfi - Valencia CA, US
Didier Sagan - San Diego CA, US
Andrew Dunn - Santa Monica CA, US

International Classification:

A61M 5/142
A61M 5/168
A61M 5/172

Abstract:

In various embodiments, a drug pump includes a housing and, within the housing, an expandable drug reservoir at least part of which is exposed to a pressurized propellant. The propellant exerts a substantially constant pressure on the drug reservoir. A flow restrictor significantly limits outflow from the pump, and preferably has both a small diameter and a long path length, which acts to control the outflow from the drug reservoir. As a result, the pump produces a substantially constant outflow.

US Patent:

20190247572, Aug 15, 2019

Filed:

Apr 26, 2019

Appl. No.:

16/395474

Inventors:

William Andrew Brandt - Castaic CA, US
Jilian Kavazov - Arcadia CA, US
David Mathew Wessel - Sunland CA, US
Andrew Dunn - Santa Monica CA, US

International Classification:

A61M 5/145
A61M 5/142

Abstract:

Embodiments of the present invention provide a vent arrangement integrated with a refill port disposed on the outer shell of an implantable drug-delivery device. The vent arrangement may utilize a tiered structure with two septums in a space-efficient configuration that facilitates both venting of pressure and refill of the drug reservoir.