Donna J Lin

US Patent:

6514228, Feb 4, 2003

Filed:

Mar 2, 2000

Appl. No.:

09/517247

Inventors:

Bruce Hamilton - Hampstead NH
Jane Riley - Marlborough MA
Donna Lin - Trinidad CA

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61M 2900

US Classification:

604 9601, 604 9701, 60410201, 60410202, 60410203, 606191, 606192, 606194

Abstract:

A balloon catheter and method of use for inflating the balloon more effectively, particularly during stent deployment. The balloon catheter includes a catheter shaft and a balloon, wherein the proximal end of the balloon is connected to the distal end of the shaft. A tip is disposed in the interior of the balloon, with the proximal end of the tip extending from the distal end of the catheter shaft and the distal end of the tip connected to the distal end of the balloon. The tip includes a fluid path to facilitate the passage of inflation fluid from the inflation lumen to the interior of the balloon, and the tip may further include a guide wire lumen extending therethrough. The fluid path may be configured to inflate the balloon uniformly or to initially inflate the distal end of the balloon such that a stent loaded on the balloon will not have a tendency migrate distally during deployment. The fluid path may be defined by channel(s) in the tip, groove(s) in the tip, or by utilizing a tip having a non-circular profile.

US Patent:

59547405, Sep 21, 1999

Filed:

Sep 23, 1996

Appl. No.:

8/710815

Inventors:

Adrian Ravenscroft - Lower Mills MA
Donna Lin - Weston MA

Assignee:

Boston Scientific Corporation - Natick MA

International Classification:

A61M 2900

US Classification:

606194

Abstract:

A dilation balloon for a catheter with improved folding characteristics for insertion into a body conduit. The balloon surface is generally textured, having a reduced texture longitudinal strip causing preferential controlled folding along the strip. The preferential folding creates curved wings which fold together upon further deflation. The curved, folded wings result in a decreased profile having wing edges oriented so as to decrease contact with conduit walls. A preferred embodiment has raised radial ridges extending around a portion of the circumference of the balloon and a smooth longitudinal surface radially therebetween.

US Patent:

61101923, Aug 29, 2000

Filed:

Jan 8, 1999

Appl. No.:

9/226986

Inventors:

Adrian Ravenscroft - Lower Mills MA
Donna Lin - Weston MA

Assignee:

Boston Scientific Corporation - Natick MA

International Classification:

A61M 2900

US Classification:

606194

Abstract:

A dilation balloon for a catheter with improved folding characteristics for insertion into a body conduit. The balloon surface is generally textured, having a reduced texture longitudinal strip causing preferential controlled folding along the strip. The preferential folding creates curved wings which fold together upon further deflation. The curved, folded wings result in a decreased profile having wing edges oriented so as to decrease contact with conduit walls. A preferred embodiment has raised radial ridges extending around a portion of the circumference of the balloon and a smooth longitudinal surface radially therebetween.

US Patent:

57921059, Aug 11, 1998

Filed:

Sep 11, 1996

Appl. No.:

8/712331

Inventors:

Donna Lin - Weston MA
Ernest J. St. Pierre - South Attleboro MA

Assignee:

Boston Scientific Corporation - Natick MA

International Classification:

A61M 2500

US Classification:

604 96

Abstract:

An inflatable medical device for delivering fluid internally to a patient comprising a catheter having a fluid delivery lumen communicating between a fluid entry port at its proximal end and a fluid delivery port on an external wall of the catheter and a hollow, inflatable balloon having at least one fluid transmitting conduit disposed between inner and outer balloon walls. The fluid transmitting conduit receives fluid from the fluid delivery port of the catheter and is connected to at least one outlet on the outer balloon wall. The inner balloon wall extends axially beyond the proximal terminus of the outer balloon wall to form an inner sleeve for attaching the inner balloon wall to the catheter. An outer collar is attached at its distal end to the outer balloon wall and at its proximal end to the catheter at a point proximal to the fluid delivery port. The outer collar forms a conduit between the fluid delivery port and the proximal opening of the fluid transmitting conduit of the balloon.