Cang Duy Dao from 27 Nick Dr, South Attleboro, MA 02703, age 77, Phone: (508) 226-4057

Intravascular Catheter With Composite Reinforcement

View page

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.

Intravascular Catheter With Composite Reinforcement

View page

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.

Intravascular Catheter With Composite Reinforcement

View page

US Patent:

7985214, Jul 26, 2011

Filed:

Jan 19, 2005

Appl. No.:

11/040018

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:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61M 25/00

US Classification:

604527, 604 9904, 604525, 604526, 604529, 604533

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.

Implantable Or Insertable Medical Devices For Controlled Drug Delivery

View page

US Patent:

8133501, Mar 13, 2012

Filed:

Feb 28, 2003

Appl. No.:

10/377131

Inventors:

Jianmin Li - Lexington MA, US
Danielle Conley - Waltham MA, US
Weenna Bucay Couto - Winchester MA, US
Cang Duy Dao - Attleboro MA, US
Hamid Davoudi - Westwood MA, US
Raymond Lareau - Westford MA, US
Kathleen M. Miller - Shrewsbury MA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61F 2/02

US Classification:

424425

Abstract:

Implantable or insertable medical devices are provided, which comprises: (a) a biocompatible polymer; and (b) at least one therapeutic agent selected from an anti-inflammatory agent, an analgesic agent, an anesthetic agent, and an antispasmodic agent. The medical devices are adapted for implantation or insertion at a site associated with pain or discomfort upon implantation or insertion. In many embodiments, the therapeutic will be selected from at least one of (i) ketorolac and pharmaceutically acceptable salts thereof (e. g. , ketorolac tromethamine) and (ii) 4-diethylamino-2-butynylphenylcyclohexyl glycolate and pharmaceutically acceptable salts thereof (e. g. , oxybutynin chloride). Also provided are uses for the implantable or insertable medical devices, which uses comprise reducing pain or discomfort accompanying the implantation or insertion of such devices. Further uses may comprise reducing microbial buildup along the device. Methods for manufacturing implantable or insertable medical devices are also provided.

Implantable Or Insertable Medical Devices For Controlled Drug Delivery

View page

US Patent:

20120150096, Jun 14, 2012

Filed:

Feb 24, 2012

Appl. No.:

13/404832

Inventors:

Jianmin LI - Lexington MA, US
Danielle Conley - Waltham MA, US
Weenna Bucay-Couto - Burlington MA, US
Cang Duy Dao - Attleboro MA, US
Hamid Davoudi - Westwood MA, US
Raymond J. Lareau - Westford MA, US
Kathleen M Miller - Shrewsbury MA, US

Assignee:

BOSTON SCIENTIFIC SCIMED, INC. - Maple Grove MN

International Classification:

A61M 5/00
A61P 29/00
A61K 31/56
A61K 9/00

US Classification:

604 8, 424486, 424487, 514169

Abstract:

Implantable or insertable medical devices are provided, which comprises: (a) a biocompatible polymer; and (b) at least one therapeutic agent selected from an anti-inflammatory agent, an analgesic agent, an anesthetic agent, and an antispasmodic agent. The medical devices are adapted for implantation or insertion at a site associated with pain or discomfort upon implantation or insertion. In many embodiments, the therapeutic will be selected from at least one of (i) ketorolac and pharmaceutically acceptable salts thereof (e.g., ketorolac tromethamine) and (ii) 4-diethylamino-2-butynylphenylcyclohexyl glycolate and pharmaceutically acceptable salts thereof (e.g., oxybutynin chloride). Also provided are uses for the implantable or insertable medical devices, which uses comprise reducing pain or discomfort accompanying the implantation or insertion of such devices. Further uses may comprise reducing microbial buildup along the device. Methods for manufacturing implantable or insertable medical devices are also provided.

Intravascular Catheter With Composite Reinforcement

View page

US Patent:

61712957, Jan 9, 2001

Filed:

Jan 20, 1999

Appl. No.:

9/234203

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

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.