John A Griego

US Patent:

6508805, Jan 21, 2003

Filed:

Oct 10, 2000

Appl. No.:

09/684819

Inventors:

Robert J. Garabedian - West Townsend MA
John Griego - Blackstone MA
Earl Bardsley - Newton MA
Dean A. Schaefer - Roslindale MA
Cang D. Dao - Foxboro MA
Steven M. Anderson - Shrewsbury MA

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61M 2500

US Classification:

604524, 604264, 604523, 604525

Abstract:

An intravascular catheter that exhibits the combined features of superior flexibility, softness, radiopacity and oval/kink resistance. The catheter includes an elongate shaft having a proximal region, a distal region and a lumen extending therethrough. The proximal region of the shaft includes an inner lubricious polymer layer, a reinforcement layer and an outer layer. The reinforcement layer comprises a braid having one or more metallic members and a plurality of polymer members wherein each polymer member comprises a plurality of monofilaments, preferably formed of LCP. The polymer members of the braid provide improved flexibility and softness in addition to high burst pressure. The metallic member(s) of the braid provide improved radiopacity and oval/kink resistance. The catheter may also include a longitudinal member extending along the reinforcement layer.

US Patent:

6579300, Jun 17, 2003

Filed:

Jan 18, 2001

Appl. No.:

09/761843

Inventors:

John A. Griego - Blackstone MA
Yem Chin - Burlington MA

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B 1732

US Classification:

606167, 60416708

Abstract:

A methodology of and apparatus for accurately positioning devices for performing endoscopic cannulation, papillotomy and sphincterotomy and similar procedures. The sphincterotome with a steerable or adjustable distal segment of the present invention allows the physician to control the position of the distal tip of the device independently of the endoscope and adjust for inconsistencies in the device and the anatomy. According to one embodiment of the present invention, a threaded portion of a cable assembly cooperates with a torque transmission element and a cog to enable the operator to rotate a cutting wire into a desired position relative to the catheter. Alternate embodiments allow the operator to fix the depth of a needle knife while allowing, if desired, accurate rotational positioning of the associated catheter. Threaded stabilizing elements, pivot elements and a steering wire may be used together or individually to accomplish these features.

US Patent:

6602262, Aug 5, 2003

Filed:

Jun 1, 2001

Appl. No.:

09/870683

Inventors:

John Griego - Blackstone MA
Yem Chin - Burlington MA
Gary McAlister - Franklin MA

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B 1732

US Classification:

606113, 606110

Abstract:

A medical instrument converts linear movement of a shaft at a proximal end of the instrument to a rotational movement of an end effector of the instrument. According to one embodiment, the medical instrument includes an end effector formed of a snare loop connected to a shaft that is located within a sleeve. Once the sleeve is located near a desired location within a patient, the snare loop may be rotationally positioned with linear movement of the shaft by the operator. The shaft is formed with a threaded portion that matches threads formed in a torque transmitter element fixed within the sleeve. Linear movement of the shaft through the torque transmitter element causes the shaft to rotate. The medical instrument may also include a pivot connector for reducing torque build-up of the shaft and/or a clutch assembly for restricting controlled rotation of the snare loop to only one direction.

US Patent:

6663596, Dec 16, 2003

Filed:

Aug 13, 2001

Appl. No.:

09/928779

Inventors:

John A. Griego - Blackstone MA
Marcia Buiser - Brighton MA
Carla M. Wiese - Newton MA

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61M 5178

US Classification:

60416402, 60416401, 604284

Abstract:

A delivery catheter for delivering material(s) into the body of a mammal can include a first elongated member and a second elongated member. At least a portion of the second elongated member can be slidably disposed within a lumen of the first elongated member. The delivery catheter can mix two materials and then introduce the mixed materials into the body of a mammal.

US Patent:

6840950, Jan 11, 2005

Filed:

Feb 20, 2001

Appl. No.:

09/789332

Inventors:

Ulf Harry Stanford - Incline Village NV, US
Yem Chin - Burlington MA, US
Sheng-Ping Zhong - Northborough MA, US
John Griego - Blackstone MA, US

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61M 2900
A61B 500
A61F 206

US Classification:

606200, 600585, 623 112

Abstract:

A low profile emboli capture device is provided for use in angioplasty and other intravascular procedures. A standard guidewire is utilized having a reduced cross-sectional area formed near its distal end. A filter and self-expanding stent are packaged on the reduced cross-sectional area of the guidewire. A movable sleeve extends over the guidewire and holds the self-expanding stent and filter in their retracted positions while the device is being positioned in the artery. The sheath is moved relative to the self-expanding stent and filter, whereupon the self-expanding stent and filter become deployed.

US Patent:

6866660, Mar 15, 2005

Filed:

Jan 9, 2003

Appl. No.:

10/339055

Inventors:

Robert J. Garabedian - West Townsend MA, US
John Griego - Blackstone MA, US
Earl Bardsley - Newton MA, US
Dean A. Schaefer - Roslindale MA, US
Cang D. Dao - Foxboro MA, US
Steven M. Anderson - Shrewsbury MA, US

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61M025/00

US Classification:

604527, 604524, 138123, 138172

Abstract:

An intravascular catheter that exhibits the combined features of superior flexibility, softness, radiopacity and oval/kink resistance. The catheter includes an elongate shaft having a proximal region, a distal region and a lumen extending therethrough. The proximal region of the shaft includes an inner lubricious polymer layer, a reinforcement layer and an outer layer. The reinforcement layer comprises a braid having one or more metallic members and a plurality of polymer members wherein each polymer member comprises a plurality of monofilaments, preferably formed of LCP. The polymer members of the braid provide improved flexibility and softness in addition to high burst pressure. The metallic member(s) of the braid provide improved radiopacity and oval/kink resistance. The catheter may also include a longitudinal member extending along the reinforcement layer.

US Patent:

7052489, May 30, 2006

Filed:

Dec 5, 2003

Appl. No.:

10/727626

Inventors:

John A. Griego - Blackstone MA, US
Matthew Whitney - Upton MA, US

Assignee:

Scimed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B 17/00

US Classification:

606 1, 600139, 600144

Abstract:

Various embodiments of a medical device having a deflecting shaft and related methods of manufacture and use are disclosed. For example, the device may include a proximal handle, a distal assembly for performing a medical procedure, and a wire coil connecting the proximal handle to the distal assembly, wherein actuation of the proximal handle may cause the distal assembly to perform the medical procedure. The wire coil may have a proximal portion comprised of a first wire and a distal portion comprised of a second wire. The second wire may have a diameter less than a diameter of the first wire so that the distal portion of the wire coil may have a flexibility greater than a flexibility of the proximal portion.

US Patent:

7083630, Aug 1, 2006

Filed:

Aug 29, 2002

Appl. No.:

10/230682

Inventors:

Robert DeVries - Northborough MA, US
William J. Shaw - Cambridge MA, US
Kristian DiMatteo - Waltham MA, US
Gerhard F. Buess - Bebenhausen, DE
Daniel Kalanovic - Stuttgart, DE
Marc O. Schurr - Tuebingen, DE
Roy H. Sullivan - Millville MA, US
Marc Tassy, Jr. - Framingham MA, US
John Griego - Blackstone MA, US
Patrick Gutelius - Monroe CT, US
Paul DiCesare - Easton CT, US

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B 17/08

US Classification:

606153, 606139, 128898

Abstract:

Endoscopic devices and methods used for fastening multiple tissue layers, such as, for example, an endoscopic fundoplication procedure, are disclosed. The device may include, for example, an elongated tubular member having a proximal end for extending outside of the body and a distal end for positioning proximate the multiple tissue layers, a grasper configured for positioning proximate the distal end of the tubular member and for grasping at least one of the multiple tissue layers, a device coupled to the distal end of the tubular member for folding the multiple tissue layers together, a tissue fastener configured to be inserted into the tissue layers to hold the tissue layers together, and a fastener head for inserting the tissue fastener into the tissue layers.