Colin P Hart

US Patent:

6520937, Feb 18, 2003

Filed:

Dec 18, 2000

Appl. No.:

09/739403

Inventors:

Colin P. Hart - Queensbury NY
Robert L. Barry - Kirkland WA
Theodore C. Lamson - Pleasanton CA
Gregory H. Lambrecht - Natick MA
Brett Stern - New York NY

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61M 100

US Classification:

604151, 604 30, 604132, 604247, 604 9902

Abstract:

A catheter for use in vasculature or other body lumen includes a fluid injection bypass tube, leading to a elastically compressible pump bulb. Upon compression of the pump bulb, fluid such as contrast solution is injected through a one-way valve, into the catheter manifold lumen, and ultimately to the distal end of the catheter lumen, and into the patient vasculature. The one-way valve between the pump bulb and the catheter lumen has a threshold pressure to prevent unintended aspiration of fluid from the pump bulb during aspiration of fluid from the catheter itself.

US Patent:

6699232, Mar 2, 2004

Filed:

Mar 1, 2001

Appl. No.:

09/797473

Inventors:

Colin P. Hart - Queensbury NY
Valerie M. Castora - Fort Ann NY

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61M 2500

US Classification:

604523, 604 6901, 604264, 604528, 604533, 604915

Abstract:

An apparatus and method for manually injecting fluid into a patient with improved contrast visualization are disclosed. The apparatus includes a syringe having a cylinder in which a plunger is reciprocatingly mounted. The syringe is connected to a manifold which itself is connected to a source of radiopaque contrast. Retraction of the plunger within the cylinder draws contrast into the cylinder, and depression of the plunger forces the contrast through the manifold and into a patient through a catheter. In order to increase the speed of injection and thus the visualization of the contrast, an improved visualization device is provided which may be provided in the form of a heater or, alternatively, in the form of an expandible catheter. The heater may be positioned anywhere within the apparatus to elevate the temperature of the contrast material, which in turn reduces its viscosity and thereby increases the speed with which fluid may be injected. The expandible catheter, may be used to restrict blood flow through a vascular structure so that the contrast material may be injected into the patient with lessened resistance and dilution from blood flow.

US Patent:

6743210, Jun 1, 2004

Filed:

Feb 15, 2001

Appl. No.:

09/784762

Inventors:

Colin P. Hart - Queensbury NY
Kevin C. Martin - Stillwater NY
Ryan M. LeClair - Delmar NY
Mark H. Van Diver - Argyle NY
Glenn H. Wadleigh - Queensbury NY
Bill A. Wetherbee - Queensbury NY

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61M 2510

US Classification:

604194, 623 111

Abstract:

The present invention generally relates to a medical device and procedure for accurately positioning a catheter across a desired region within a patients vasculature. In particular, the present invention provides a hub assembly unit that allows a physician to precisely position a stent within a vessel utilizing a stent delivery catheter. The hub assembly unit includes a fine adjustment mechanism. The fine adjustment mechanism extends or contracts the length of the hub assembly unit in controlled incremental units. These controlled fine displacements are then translated directly to the stent delivery or balloon dilation catheter.

US Patent:

6896002, May 24, 2005

Filed:

Aug 21, 2001

Appl. No.:

09/934242

Inventors:

Colin P. Hart - Queensbury NY, US
Ryan M. Leclair - Lake Clear NY, US
Kathryn M. Albert - Saratoga Springs NY, US
Thomas Deyette, Jr. - Hudson Falls NY, US
Mark H. Vandiver - Argyle NY, US

Assignee:

SciMed Life Systems, Inc - Maple Grove IL

International Classification:

F16K011/10

US Classification:

1376255, 73706

Abstract:

A pressure activated valve for a three-way connection between a catheter, an injector and a pressure transducer is disclosed. The valve includes a body that has an inlet for connection to an injector, an outlet for connection to a catheter and a secondary connection for connection to a pressure transducer. The body also includes a seal seat disposed between the secondary connection in both the inlet and the outlet. The body is flexibly connected to a plug seal. The plug seal is disposed between the seal seat in both the inlet and the outlet. The plug seal is movable between an open position spaced apart from the seal seat and biased towards the inlet and the outlet and a closed position against the seal seat thereby isolating the secondary connection from both the inlet and the outlet.

US Patent:

6958051, Oct 25, 2005

Filed:

Oct 29, 2001

Appl. No.:

10/021517

Inventors:

Colin P. Hart - Queensbury NY, US
Thomas Deyette, Jr. - Hudson Falls NY, US
Glenn H. Wadleigh - Queensbury NY, US

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61M029/00

US Classification:

604 96, 604533

Abstract:

The present invention is drawn to a valve control accessory for use with a dual balloon stent delivery catheter. The accessory device includes a bifurcated fluid line adapted to connect to an inflation device using a proximal luer connector. Additional luer connectors at the distal ends of the main fluid line and branched fluid line are engaged to connect to the proximal ends of a bifurcated catheter shaft, allowing the fluid lines to be in fluid communication with a parent and sidebranch balloon respectively. In one embodiment, stopcocks are formed in both the main and sidebranch fluid lines to allow independent or simultaneous expansion of each balloon. A pressure indicator may be placed on either fluid line to indicate which line is under pressure.

US Patent:

6986742, Jan 17, 2006

Filed:

May 5, 2005

Appl. No.:

11/122723

Inventors:

Colin P. Hart - Queensbury NY, US
Ryan M. Leclair - Delmar NY, US
Kathryn M. Albert - Saratoga Springs NY, US
Thomas Deyette, Jr. - Hudson Falls NY, US
Mark H. VanDiver - Argyle NY, US

Assignee:

Boston Scientific SciMed, Inc. - Maple Grove MN

International Classification:

A61B 5/00

US Classification:

600486

Abstract:

A pressure activated valve for a three-way connection between a catheter, an injector and a pressure transducer is disclosed. The valve includes a body that has an inlet for connection to an injector, an outlet for connection to a catheter and a secondary connection for connection to a pressure transducer. The body also includes a seal seat disposed between the secondary connection in both the inlet and the outlet. The body is flexibly connected to a plug seal. The plug seal is disposed between the seal seat in both the inlet and the outlet. The plug seal is movable between an open position spaced apart from the seal seat and biased towards the inlet and the outlet and a closed position against the seal seat thereby isolating the secondary connection from both the inlet and the outlet.

US Patent:

7044933, May 16, 2006

Filed:

Mar 1, 2001

Appl. No.:

09/796779

Inventors:

Mark H. VanDiver - Argyle NY, US
Colin P. Hart - Queensbury NY, US
Kevin C. Martin - Stillwater NY, US
Thomas R. Delcourt - Queensbury NY, US
Eric Houde - Saratoga Springs NY, US

Assignee:

Scimed Life Systems, Inc. - Maple Grove MN

International Classification:

A61M 1/00

US Classification:

604151

Abstract:

A fluid injection apparatus and method of injecting fluid are disclosed. The apparatus includes a control syringe electrically connected to a power-actuated syringe. A sensor is provided proximate the control syringe to monitor the position of the plunger therein, with a signal representative of plunger position then being communicated to a processor for calculation of a corresponding control signal. The control signal is received by an actuator of the power-actuated syringe to move the plunger of the power-actuated syringe in a manner related to movement of the control syringe. The control syringe is provided with a feedback device to provide the operator with an indication as to the pressure of the fluid being injected into a patient.

US Patent:

7097690, Aug 29, 2006

Filed:

Oct 10, 2003

Appl. No.:

10/684215

Inventors:

Kathryn M. Usher - Saratoga NY, US
George R. Foster - Glen Falls NY, US
Edward M. Kolvek - West Newbury MA, US
Andrew C. Harvey - Waltham MA, US
Malcolm E. Taylor - Pepperell MA, US
Thomas Williams Lovell - Beverly MA, US
Colin P. Hart - Queensbury NY, US
William Edmund Girzone - Saratoga Springs NY, US

Assignee:

Scimed Life Systems, Inc. - Maple Grove MN

International Classification:

C02F 1/44
B01D 53/22

US Classification:

95 46, 96 6, 96 7, 96 8, 96 10, 96 14, 604 9, 604122, 604126

Abstract:

Medical devices for removing gasses, such as gas bubbles and/or dissolved gasses, from a liquid to be delivered to a patient, and methods of use and making of such devices. In at least some embodiments, a gas permeable membrane material is used in the construction of the gas removal devices. In some embodiments, layers of gas permeable membrane material are used to construct a filter structure for removing gas from the liquid. In other embodiments, hollow tubes and/or fibers of the gas permeable membrane material are used to construct a filter structure for removing gas from the liquid. The gas removal devices may be used in any of a broad variety of liquid delivery systems and/or configurations.