Benjamin Dale Lee

US Patent:

20070083231, Apr 12, 2007

Filed:

Oct 7, 2005

Appl. No.:

11/245437

Inventors:

Benjamin Lee - Chevy Chase MD, US

International Classification:

A61B 17/08

US Classification:

606213000

Abstract:

The present invention provides a device for closing an opening to a body cavity and methods of closing an opening to a body cavity. The device and methods can be used to easily and effectively close a vascular puncture site resulting from a surgical procedure.

US Patent:

20070083232, Apr 12, 2007

Filed:

May 22, 2006

Appl. No.:

11/437834

Inventors:

Benjamin Lee - Chevy Chase MD, US

International Classification:

A61B 17/08

US Classification:

606213000

Abstract:

The present invention provides a device for closing an opening to a body cavity and methods of closing an opening to a body cavity. The device and methods can be used to easily and effectively close a vascular puncture site resulting from a surgical procedure, an atrial or ventricular septal defect, a malfunctioning heart valve, or the left atrium appendage.

US Patent:

60334274, Mar 7, 2000

Filed:

Jan 7, 1999

Appl. No.:

9/226717

Inventors:

Benjamin I. Lee - Washington DC

International Classification:

A61B 1700

US Classification:

606213

Abstract:

The present invention relates to a device for percutaneously sealing of an internal puncture site comprising a tissue portion having a puncture formed therethrough. A locating device is mounted for longitudinal movement relative to a guide wire towards and away from the puncture site. Delivery structure has a distal end portion and is mounted for longitudinal movement relative to the guide wire. A tubular puncture site engaging member has a distal end portion and is mounted exteriorly of the delivery structure for longitudinal movement relative to the guide wire. A supply of fluid thrombogenic material which will be capable of promoting clotting when delivered to the puncture site is provided. The delivery structure has a fluid passageway open to the distal end portion thereof and communicated to the supply of fluid thrombogenic material. The locating device and the puncture site engaging member are positioned with respect to one another such that they can be moved together towards the puncture site.

US Patent:

54434815, Aug 22, 1995

Filed:

Apr 5, 1993

Appl. No.:

8/041573

Inventors:

Benjamin I. Lee - Washington DC

International Classification:

A61B 1704
A61M 2900
A61M 3900

US Classification:

606213

Abstract:

A method is provided for closing a puncture in a wall of an artery made for the purpose of moving an elongated cardiovascular catheter into the artery. The method includes the steps of withdrawing the cardiovascular catheter from the artery while ensuring that the location of the puncture remains identified, and introducing a thrombogenic, hemostatic material so as to contact the wall of the artery at the puncture location, enabling the material to precipitate clot formation and seal the puncture. A device is also provided to employ the method.

US Patent:

51905400, Mar 2, 1993

Filed:

Sep 25, 1991

Appl. No.:

7/765326

Inventors:

Benjamin I. Lee - Washington DC

Assignee:

Cardiovascular & Interventional Research Consultants, Inc. - Indianapolis IN

International Classification:

A61B 1736

US Classification:

606 28

Abstract:

A method for remodeling a body lumen, such as a coronary artery, having a stenosis to expand the stenosis comprising the steps of increasing the temperature of the body lumen and stenosis at the region of the stenosis for a time period and to a temperature level sufficient to cause a change in the stenosis and body lumen region from a relatively solid state into a softer and more moldable state and thereafter expanding the stenosis and the body lumen region while in the softer and more moldable state to thus reduce the tendency to fracture during expansion, and reducing the temperature of the stenosis and body lumen region while maintaining the expansion for a time period and to a temperature level sufficient to re-establish the relatively solid state thereof so as to increase the tendency to maintain the stenosis and body lumen region in the expanded condition. An improved heat applying balloon catheter is provided including passages for displacing the heated balloon inflating liquid with a cooling liquid to carry out the method.

US Patent:

52923320, Mar 8, 1994

Filed:

Jul 27, 1992

Appl. No.:

7/918614

Inventors:

Benjamin I. Lee - Washington DC

International Classification:

A61B 1700

US Classification:

606213

Abstract:

A method is provided for closing a puncture in a wall of an artery made for the purpose of moving an elongated catheter into the artery in which an exterior guide tube is extended through the adjacent skin area through the body containing the artery, through the puncture in the wall of the artery and into the artery so as to enable the catheter to be guidingly moved through the guide tube and into the artery. The method includes the steps of withdrawing the catheter from the guide tube, extending a plug having a removable guide wire extending longitudinally therethrough into the guide tube so that the guide wire extends from the plug through the puncture, moving the guide tube outwardly so that it no longer extends within the puncture and leaves the guide wire extending through the puncture, moving the plug inwardly along the guide wire into blocking relation with the puncture, and withdrawing the guide wire from the plug so as to leave the plug sealed in blocking relation with the puncture. A device is also provided to employ the method.

US Patent:

52923215, Mar 8, 1994

Filed:

Mar 1, 1993

Appl. No.:

8/025415

Inventors:

Benjamin I. Lee - Washington DC

International Classification:

A61B 1736

US Classification:

606 28

Abstract:

A method is provided for remodeling a body lumen, such as a coronary artery, having a stenosis using a thermoplastic stent including the steps of increasing the temperature of the thermoplastic stent, body lumen and stenosis at the region of the stenosis for a time period and to a temperature level sufficient to cause a change in the stent, stenosis and body lumen region from a relatively solid state into a softer and more moldable state and thereafter expanding the stenosis and the body lumen region while in the softer and more moldable state to thus reduce the tendency to fracture during expansion while enabling the stent to contact an inner surface of a wall of the body lumen, and reducing the temperature of the thermoplastic stent, stenosis and body lumen region while maintaining the expansion for a time period and to a temperature level sufficient to re-establish the relatively solid state thereof so that the thermoplastic tent molds against the surface of the inner surface of the wall of the body lumen to maintain the stenosis and body lumen region in the expanded condition. An improved heat applying balloon catheter is provided including passages for displacing the heated balloon inflating liquid with a cooling liquid to carry out the method.