Lev A Ludin

US Patent:

6902544, Jun 7, 2005

Filed:

Jan 22, 2003

Appl. No.:

10/348812

Inventors:

Lev Ludin - Newton MA, US
Brooke Mastrorio - Lakeville MA, US
Tim Beardsley - Kingston MA, US

Assignee:

Codman & Shurtleff, Inc. - Raynham MA

International Classification:

A61M031/00

US Classification:

604 9301, 604502

Abstract:

An implantable pump and methods for detecting leaks in an implantable pump are provided. In one embodiment, the implantable drug pump includes a housing having at least one inlet port and an outlet port formed therein. The outlet port is adapted to communicate with a catheter for delivering fluid to a patient's body, and the inlet port(s) are effective to deliver fluid into the housing. The housing further includes at least one reservoir disposed therein and effective to contain a fluid. In use, the pump preferably includes a fluid having one or more drugs disposed in at least one of the reservoirs, and a radiolucent fluid disposed in one of the reservoirs. A user programmable control mechanism is coupled to the drug pump and is effective to selectively control movement of the valves between the open and closed positions.

US Patent:

7089783, Aug 15, 2006

Filed:

May 31, 2005

Appl. No.:

11/141066

Inventors:

Lev Ludin - Newton MA, US
Brooke W. Mastrorio - Lakeville MA, US
Timothy Beardsley - Kingston MA, US

Assignee:

Codman & Shurtleff, Inc. - Raynham MA

International Classification:

G01M 3/04

US Classification:

73 407

Abstract:

An implantable pump and methods for detecting leaks in an implantable pump are provided. In one embodiment, the implantable drug pump includes a housing having at least one inlet port and an outlet port formed therein. The outlet port is adapted to communicate with a catheter for delivering fluid to a patient's body, and the inlet port(s) are effective to deliver fluid into the housing. The housing further includes at least one reservoir disposed therein and effective to contain a fluid. In use, the pump preferably includes a fluid having one or more drugs disposed in at least one of the reservoirs, and a radiolucent fluid disposed in one of the reservoirs. A user programmable control mechanism is coupled to the drug pump and is effective to selectively control movement of the valves between the open and closed positions.

US Patent:

7226430, Jun 5, 2007

Filed:

Dec 26, 2003

Appl. No.:

10/745715

Inventors:

Lev Ludin - Newton MA, US

Assignee:

Codman & Shurtleff, Inc. - Raynham MA

International Classification:

A61M 31/00

US Classification:

604 67

Abstract:

A closed loop feedback drug delivery system for controlling muscle activity, e. g. , spasticity. The system includes a sensor, e. g. , an EMG sensor, for monitoring muscle activity and generating a detected muscle activity signal. A controller automatically adjusts at least one of timing and dosage of a drug administered to control muscle activity based on the detected muscle activity signal and produces a control signal. Administering of the drug, e. g. , an antispasmodic drug, for controlling muscle activity based on the control signal is performed by an infusion pump. The drug after being emitted from the pump is then delivered to the spinal cord of the patient using an intrathecal catheter.

US Patent:

7334594, Feb 26, 2008

Filed:

Jun 29, 2005

Appl. No.:

11/170795

Inventors:

Lev Ludin - Newton MA, US

Assignee:

Codman & Shurtleff, Inc. - Raynham MA

International Classification:

F16K 35/16
A61M 27/00

US Classification:

137 1, 137524, 137535, 137539, 137383, 137385, 128903, 604 8, 604 9, 607 60

Abstract:

A shunt valve assembly includes an electromechanical brake mechanism that locks a position of a pressure setting mechanism within a shunt valve assembly. The electromechanical brake can maintain the position of the pressure setting mechanism in the presence of a relatively strong magnetic field to maintain a set pressure differential within the shunt valve assembly. In certain cases, the shunt valve requires repositioning of the pressure setting mechanism within the shunt valve assembly to adjust a fluid flow rate through the shunt valve assembly. A clinician can activate an external controller to transmit a signal to the shunt valve assembly through magnetically coupled antennas between the controller and the shunt valve. The shunt valve assembly utilizes the signal to activate the braking mechanism and unlock the pressure setting mechanism. The clinician then operates the controller to non-invasively reposition the pressure setting mechanism and adjust the pressure at which the shunt valve opens.

US Patent:

7935079, May 3, 2011

Filed:

Jun 28, 2006

Appl. No.:

11/427061

Inventors:

Lev Ludin - Newton MA, US
Brooke W. Mastrorio - Lakeville MA, US
Timothy Beardsley - Kingston MA, US

Assignee:

Codman & Shurtleff, Inc. - Raynham MA

International Classification:

A61M 31/00

US Classification:

604 9301, 604131

Abstract:

An implantable pump and methods for detecting leaks in an implantable pump are provided. In one embodiment, the implantable drug pump includes a housing having at least one inlet port and an outlet port formed therein. The outlet port is adapted to communicate with a catheter for delivering fluid to a patient's body, and the inlet port(s) are effective to deliver fluid into the housing. The housing further includes at least one reservoir disposed therein and effective to contain a fluid. In use, the pump preferably includes a fluid having one or more drugs disposed in at least one of the reservoirs, and a radiopaque fluid disposed in one of the reservoirs. A user programmable control mechanism is coupled to the drug pump and is effective to selectively control movement of the valves between the open and closed positions.

US Patent:

8123714, Feb 28, 2012

Filed:

Jun 29, 2007

Appl. No.:

11/771015

Inventors:

Lev Ludin - Newton MA, US
Christopher Mauge - Doylestown PA, US

Assignee:

Codman & Shurtleff, Inc. - Raynham MA

International Classification:

A61M 5/00

US Classification:

604 9, 604 8

Abstract:

Devices and methods for regulating and directing bodily fluids from one region of a patient to another region are disclosed. In general, an apparatus is provided that can include an implantable shunt system and a system controller. The implantable shunt system can have an adjustable valve for regulating the flow of fluid, a sensor element for measuring a physiological characteristic of a patient, and an electromechanical valve actuator that can be adapted to adjust a resistance of the valve. The implantable shunt system can be in electrical communication with the system controller. The system controller can generally be adapted to receive a physiological characteristic of the patient and operate the electromechanical valve actuator to adjust a resistance of the valve. The apparatus can also include an external programming device that is in communication with the system controller.

US Patent:

20120046596, Feb 23, 2012

Filed:

Oct 28, 2011

Appl. No.:

13/284272

Inventors:

Lev Ludin - Newton MA, US
Christopher Mauge - Doylestown PA, US

Assignee:

CODMAN & SHURTLEFF, INC. - Raynham MA

International Classification:

A61M 1/00

US Classification:

604 9

Abstract:

Devices and methods for regulating and directing bodily fluids from one region of a patient to another region are disclosed. In general, an apparatus is provided that can include an implantable shunt system and a system controller. The implantable shunt system can have an adjustable valve for regulating the flow of fluid, a sensor element for measuring a physiological characteristic of a patient, and an electromechanical valve actuator that can be adapted to adjust a resistance of the valve. The implantable shunt system can be in electrical communication with the system controller. The system controller can generally be adapted to receive a physiological characteristic of the patient and operate the electromechanical valve actuator to adjust a resistance of the valve. The apparatus can also include an external programming device that is in communication with the system controller.

US Patent:

57412243, Apr 21, 1998

Filed:

Apr 16, 1996

Appl. No.:

8/632843

Inventors:

Fredric L. Milder - Brookline MA
Barry D. Weitzner - Acton MA
Lev Ludin - Brookline MA

Assignee:

Implemed, Inc. - Watertown MA

International Classification:

A61N 130
A61M 532

US Classification:

604 20

Abstract:

An iontophoretic material is provided that uses controlled electrical current derived from two dissimilar galvanic materials to drive oligodynamic metal ions into solution to kill microorganisms on and near the material. Iontophoretic structures or material associated with a medical device are partially or completely covered with one or more covering layers that alter physical, mechanical, chemical, or biological properties of the device and/or the iontophoretic material. In addition to being partially coated or completely enveloped by iontophoretic material or structures, all or a portion of a medical device can be integrated with, impregnated by, or fabricated from an iontophoretic material.