Michael K Randall

US Patent:

8613754, Dec 24, 2013

Filed:

Jul 29, 2010

Appl. No.:

12/846680

Inventors:

Andrzej J. Chanduszko - Chandler AZ, US
Michael Adam Randall - Maricopa AZ, US

Assignee:

C. R. Bard, Inc. - Murray Hill NJ

International Classification:

A61M 29/00

US Classification:

606200, 623 115

Abstract:

A filter to be placed in a flow of blood through a vessel. The filter includes a hub disposed along a longitudinal axis and a plurality of anchor members extending from the hub. Each anchor member includes either a cranial extension or a caudal extension at a distal end thereof. At least one anchor member distal end is spaced from the hub at each of a first, second, and third distance along the longitudinal axis. The filter also includes a plurality of locator members extending from the hub, the locator members alternatingly interposed between the anchor members.

US Patent:

20220401239, Dec 22, 2022

Filed:

Mar 2, 2022

Appl. No.:

17/684747

Inventors:

- Tempe AZ, US
Michael Randall - Gilbert AZ, US
William Parmentier - Gilbert AZ, US

International Classification:

A61F 2/90
A61F 2/95
A61F 2/86
A61F 2/82

Abstract:

An endovascular apparatus takes the form of an expandable tubular body having a retriever, which may include a pair of interconnected hooks. The retriever may be formed from a single piece of material forming the tubular body, and in the case of a pair of hooks thus has a thickness corresponding to approximately twice the wall thickness of the tubular body. The innermost radial portion of the hooks may be offset from a central axis of a lumen formed by the tubular body, which facilitates free insertion of a balloon or the like for purposes of expanding the tubular body. Related methods of manufacturing an endovascular apparatus with a retriever are also described herein.

US Patent:

20220280244, Sep 8, 2022

Filed:

May 31, 2019

Appl. No.:

17/610851

Inventors:

- Franklin Lakes NJ, US
Alexander W. Tessmer - Phoenix AZ, US
Jeremy B. Cox - Salt Lake City UT, US
Andrzej J. Chanduszko - Chandler AZ, US
Michael Randall - Gilbert AZ, US
Thomas Diffley Pate - Austin TX, US

Assignee:

TVA Medical, Inc. - Franklin Lakes NJ

International Classification:

A61B 34/20
A61B 8/12
A61B 8/00
A61B 8/08
A61B 17/32
A61B 17/22

Abstract:

In one aspect, a system for endovascular treatment of a blood vessel includes a control unit, an ultrasound device, an actuator, and a catheter having a treatment portion. The ultrasound device is communicatively coupled to the control unit. The ultrasound device includes an ultrasound probe having a subject contact surface. The actuator is coupled to the ultrasound probe and is operable to move the subject contact surface of the ultrasound prove relative to a treatment zone of a subject. The control unit is configured to determine a position of the treatment portion of the catheter as the catheter is advanced through the blood vessel, and move the subject contact surface of the ultrasound probe relative to the treatment zone of the subject with the actuator to follow the position of the catheter as the catheter is advanced through the blood vessel.

US Patent:

20210315606, Oct 14, 2021

Filed:

Jun 18, 2021

Appl. No.:

17/351464

Inventors:

- Tempe AZ, US
Michael Randall - Gilbert AZ, US
Chad Van Liere - Phoenix AZ, US

International Classification:

A61B 17/3207
A61M 25/10

Abstract:

A catheter for scoring or slicing a lesion. The catheter has a first receiver at a distal end of an expandable portion of the catheter shaft. A first carrier at least partially within the first receiver is moveable axially along the catheter shaft to deploy a first cutter along the expandable portion for cutting or scoring the lesion. In an alternative embodiment, the first carrier may be a wire having a loop, and thus forming a first length including the first cutter and a second length including a second cutter. Actuation of the wire thus causes simultaneous, reciprocal movement of the first and second cutters. Related methods are also disclosed.

US Patent:

20210113235, Apr 22, 2021

Filed:

Aug 6, 2018

Appl. No.:

16/472075

Inventors:

- Murray Hill NJ, US
Michael Randall - Gilbert AZ, US
Chad Van Liere - Phoenix AZ, US

International Classification:

A61B 17/3207
A61M 25/10

Abstract:

A catheter for scoring or slicing a lesion. The catheter has a first receiver at a distal end of an expandable portion of the catheter shaft. A first carrier at least partially within the first receiver is moveable axially along the catheter shaft to deploy a first cutter along the expandable portion for cutting or scoring the lesion. In an alternative embodiment, the first carrier may be a wire having a loop, and thus forming a first length including the first cutter and a second length including a second cutter. Actuation of the wire thus causes simultaneous, reciprocal movement of the first and second cutters. Related methods are also disclosed.

US Patent:

20210106310, Apr 15, 2021

Filed:

Dec 22, 2020

Appl. No.:

17/131073

Inventors:

- Franklin Lakes NJ, US
Michael A. Randall - Gilbert AZ, US
Peng Zheng - Chandler AZ, US
Dean M. Addison - Victoria, CA
Bryan A. Matthews - Saanichton, CA

International Classification:

A61B 8/00
A61B 8/08

Abstract:

An ultrasound imaging system includes an interventional medical device having a first tracking element that generates tip location data based on an EM locator field. An ultrasound probe has an ultrasound transducer mechanism and a second tracking element. The ultrasound transducer mechanism has an active ultrasound transducer array that generates two-dimensional ultrasound slice data at any of a plurality of discrete imaging locations within a three-dimensional imaging volume. The second tracking element generates probe location data based on the EM locator field. A processor circuit is configured to execute program instructions to generate an ultrasound image for display, and is configured to generate a positioning signal based on the tip location data and the probe location data to dynamically position the active ultrasound transducer array so that the two-dimensional ultrasound slice data includes the distal tip of the interventional medical device.

US Patent:

20210068939, Mar 11, 2021

Filed:

Sep 22, 2020

Appl. No.:

17/027987

Inventors:

- Murray Hill NJ, US
Michael Adam Randall - Gilbert AZ, US

Assignee:

C.R. Bard, Inc. - Murray Hill NJ

International Classification:

A61F 2/01

Abstract:

A method of preparing a filter for delivery into a body vessel. The filter includes a hub disposed along a longitudinal axis and a plurality of anchor members extending from the hub. Each anchor member includes either a cranial extension or a caudal extension at a distal end thereof. At least one anchor member distal end may be spaced from the hub at each of a first, second, and third distance along the longitudinal axis. The filter also includes a plurality of locator members extending from the hub, the locator members alternatingly interposed between the anchor members.

US Patent:

20200390707, Dec 17, 2020

Filed:

Dec 18, 2018

Appl. No.:

16/955275

Inventors:

- Tempe AZ, US
Michael Randall - Tempe AZ, US

International Classification:

A61K 9/16
A61K 31/351
A61K 9/00

Abstract:

Drug-loaded microbead compositions include microbeads of a water-swellable polymer material and a complex of a carrier and a therapeutic agent chemically bonded to the carrier. The complex is embedded in the polymer material. The therapeutic agent is not chemically bonded to the water-swellable polymer material. The drug-loaded microbead composition has a water content of less than 1% by weight, based on the total weight of the drug-loaded microbead composition. The drug-loaded microbead composition may be rehydrated to form an embolization composition for use in in embolization therapy. Methods for preparing the drug-loaded microbead compositions and the embolization compositions include loading a therapeutic agent into a water-swellable polymer material to form microbeads, then removing water from the microbeads.