Michael A Defusco

US Patent:

8322365, Dec 4, 2012

Filed:

Aug 17, 2010

Appl. No.:

12/858193

Inventors:

Stephen F. Wilson - Raynham MA, US
Michael DeFusco - Raynham MA, US

Assignee:

Codman & Shurtleff, Inc. - Raynham MA

International Classification:

A61M 5/00

US Classification:

137530, 604 9, 6048911, 251251, 137554

Abstract:

A valve unit capable of being implanted in a patient and having adjustable performance settings, such as pressure settings and/or flow control, to regulate passage of a bodily fluid. A casing defines a port for the bodily fluid, and a valve mechanism positioned at the port includes a movable valve member. The valve unit further includes a rotor disposed at a first location in the casing and having an axle which turns about an axis of rotation. The rotor defines a plurality of arcuate, radially flat cam surfaces. Each cam surface occupies an arc about the axis of rotation. A spring arm unit is disposed at a second location in the casing having a cam follower arm in slidable contact with the cam surfaces of the rotor and having a resilient spring element applying a closing effect with the movable valve member to establish a performance setting for the valve unit. Sufficient rotation of the rotor to change the cam surface in contact with the cam follower alters the closing effect with which the valve member moves relative to the port and thereby alters the performance setting of the valve unit.

US Patent:

8617142, Dec 31, 2013

Filed:

Dec 4, 2012

Appl. No.:

13/705009

Inventors:

Michael Defusco - Raynham MA, US

Assignee:

Depuy Synthes Products, LLC - Raynham MA

International Classification:

A61M 5/00
A61K 9/22

US Classification:

6048911, 604 9, 116204, 137554

Abstract:

A valve unit capable of being implanted in a patient and having adjustable performance settings, such as pressure settings and/or flow control, to regulate passage of a bodily fluid. A casing defines a port for the bodily fluid, and a valve mechanism positioned at the port includes a movable valve member. The valve unit further includes a rotor disposed at a first location in the casing and having an axle which turns about an axis of rotation. The rotor defines a plurality of arcuate, radially flat cam surfaces. Each cam surface occupies an arc about the axis of rotation. A spring arm unit is disposed at a second location in the casing having a cam follower arm in slidable contact with the cam surfaces of the rotor and having a resilient spring element applying a closing effect with the movable valve member to establish a performance setting for the valve unit. Sufficient rotation of the rotor to change the cam surface in contact with the cam follower alters the closing effect with which the valve member moves relative to the port and thereby alters the performance setting of the valve unit.

US Patent:

20080021285, Jan 24, 2008

Filed:

Jan 4, 2006

Appl. No.:

11/325269

Inventors:

Anne Drzyzga - Taunton MA, US
William Frasier - New Bedford MA, US
Michael Zajack - Marshfield MA, US
Michael DeFusco - North Attleboro MA, US
Connie Marchek - Foxboro MA, US
Nicholas Pavento - Walpole MA, US
Ginger Boyer - North Attleboro MA, US
Sara Dziedzic - Braintree MA, US

International Classification:

A61B 1/32

US Classification:

600215000

Abstract:

A surgical retractor for use with a spinal stabilization system including a plurality of bone anchors and a plurality of anchor extensions. The surgical retractor includes a frame positionable between a first anchor extension connected to a first bone anchor implanted in a first vertebra and a second anchor extension connected to a second bone anchor implanted in a second vertebra and a first retractor blade connectable to the frame for retracting tissue between the first anchor extension and the second anchor extension.

US Patent:

20190076630, Mar 14, 2019

Filed:

Sep 12, 2017

Appl. No.:

15/702283

Inventors:

- Raynham MA, US
Michael A. DeFusco - North Attleboro MA, US
Alyssa R. Trigger - South Boston MA, US

International Classification:

A61M 27/00

Abstract:

An implantable bodily fluid drainage system including a collection vessel and a mechanical volume limiting mechanism for preventing overfill of the collection chamber. The mechanical volume limiting mechanism is not susceptible to malfunction if immersed in the bodily fluid. Moreover, the volume capacity of the fluid collection chamber is adjustable in addition to the overfill prevention functionality.

US Patent:

20180280236, Oct 4, 2018

Filed:

Mar 31, 2017

Appl. No.:

15/476202

Inventors:

- LE LOCLE, CH
Michael A. DeFusco - North Attleboro MA, US

Assignee:

INTEGRA LIFESCIENCES SWITZERLAND SARL - LE LOCLE

International Classification:

A61J 1/18
G06K 19/077
G06K 7/10
A61M 27/00

Abstract:

Fluid containers having a volume marking(s) and conductive element(s) disposed at the volume marking(s) and a common conductive element are provided. For example, the fluid container has a wall forming the volume. The conductive element(s) and the common conductive element have a portion disposed within the volume and a portion external to the volume. The container further has a RFID tag, where the conductive element(s) and the common conductive element are connected thereto via respective conductive wires. A fluid detection system having the fluid containers is also provided. The system comprises one or more containers and a patient site monitor having a RF reader that interrogates the RFID tag at a preset interval. Responsive to the signal, the tag supplies a predetermined current to the conductive element and the common conductive element and detects a voltage and generates an alert based on the same.

US Patent:

20160184562, Jun 30, 2016

Filed:

Jul 20, 2015

Appl. No.:

14/803238

Inventors:

- Raynham MA, US
Michael Defusco - North Attleboro MA, US

Assignee:

DePuy Synthes Products, Inc. - Raynham MA

International Classification:

A61M 27/00

Abstract:

A catheter system with integral sensing and clearing of occlusions is described. The system can include a catheter in fluid communication with a shunt for transporting a bodily fluid within, or out of, a patient's body. The catheter and/or the shunt can include one or more detection wires and one or more transmission wires. The detection wires can be in electrical communication with the fluid and can enable the detection of changes in electrical properties of the fluid indicating an occlusion, or other anomaly, in the catheter. The transmission wires can be in electrical communication with the fluid and can enable the application of electromagnetic energy to the occlusion to facilitate its removal. The detection wires and the transmission wires can be the same or different wires. The system can include a probe that can be externally connected to the wires to provide detection and or transmission signals.

US Patent:

20150374961, Dec 31, 2015

Filed:

Sep 8, 2015

Appl. No.:

14/847766

Inventors:

- Raynham MA, US
Michael DeFusco - North Attleboro MA, US

International Classification:

A61M 27/00

Abstract:

In one aspect, an implantable shunt system is disclosed that, in one example implementation, includes a resilient member and a connected fluid regulating device. The fluid regulating device selectively permits fluid flow through an opening valve of an implantable shunt according to an adjustable opening pressure. The opening pressure is proportional to an amount of tension on the resilient member. One or more tension sensors that are connected to the resilient member measure an amount of tension on the resilient member. The tension sensors generate tension data that corresponds to the measured amount of tension. The system further includes a communication unit with a transmitting unit that transmits the measured data over a communication link. The system also includes a reading unit that receives the transmitted tension data over the communication link. The reading unit includes a connector that electrically connects the reading unit to the transmission unit.

US Patent:

20140276340, Sep 18, 2014

Filed:

Mar 12, 2013

Appl. No.:

13/796164

Inventors:

- Raynham MA, US
Michael DeFusco - North Attleboro MA, US

Assignee:

DePuy Synthes Products, LLC - Raynham MA

International Classification:

A61M 27/00

US Classification:

604 9

Abstract:

In one aspect, an implantable shunt system is disclosed that, in one example implementation, includes a resilient member and a connected fluid regulating device. The fluid regulating device selectively permits fluid flow through an opening valve of an implantable shunt according to an adjustable opening pressure. The opening pressure is proportional to an amount of tension on the resilient member. One or more tension sensors that are connected to the resilient member measure an amount of tension on the resilient member. The tension sensors generate tension data that corresponds to the measured amount of tension. The system further includes a communication unit with a transmitting unit that transmits the measured data over a communication link.