Patents by Inventor Alec A. Piplani

Alec A. Piplani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5957973
    Abstract: An intraluminal grafting system having a balloon catheter assembly, a capsule catheter assembly and capsule jacket assembly is used for deploying a graft having attachment means in the vessel of an animal body. The system contains a proximal capsule means and a distal capsule means, wherein the graft is disposed within the two capsule means and a removable sheath covers the graft and capsule means. The graft is comprised of a tubular member having superior and inferior ends, having attachment means with wall engaging members secured thereto. The balloon catheter is disposed within the capsule catheter to provide relative movement between the balloon catheter and the capsule catheter, whereby the graft can be removed from the capsule means. The balloon is inflated to firmly implant the graft and attachment means within the vessel. The graft and attachment means remain in the vessel after the intraluminal grafting system is withdrawn.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: September 28, 1999
    Assignee: Endovascular Technologies, Inc.
    Inventors: Dinah B. Quiachon, Alec A. Piplani, Larry G. Baughman
  • Patent number: 5824044
    Abstract: An improved intraluminal grafting system incorporating novel structural features for enhancing the effective and efficient deployment of a bifurcated prosthesis having a plurality of attachment systems, in the vessel of an animal body, the system including a balloon catheter assembly, an ipsilateral capsule catheter assembly, distal and contralateral capsule assemblies and means interacting therewith, and a capsule jacket assembly. The capsule assemblies include an ipsilateral capsule assembly, a contralateral capsule assembly and a distal capsule assembly, wherein the attachment systems of the bifurcated prosthesis are disposed within the three capsule assemblies. The capsule jacket assembly includes a removable sheath that covers the bifurcated prosthesis and capsule assemblies to provide a smooth transition along the length of the deployment catheters.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: October 20, 1998
    Assignee: Endovascular Technologies, Inc.
    Inventors: Dinah B. Quiachon, Alec A. Piplani, Steve G. Baker, Ronald G. Williams, Richard S. Williams, Kenneth L. Osborn, Ted W. Layman, Peter K. Johansson
  • Patent number: 5824039
    Abstract: Graft having a bifurcation for repairing an aneurysm in the vicinity of an aortic bifurcation in a patient comprising a main tubular body and first and second tubular legs joined to said main body in a bifurcation. The main body and the legs are formed of a flexible surgically implantable material. The main body and each of the first and second legs having an opening therein in communication with the other openings. Expandable spring attachments are secured to the main body adjacent the opening in the main body. An additional expandable spring attachment is secured to one of said legs adjacent the opening in said one leg.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: October 20, 1998
    Assignee: Endovascular Technologies, Inc.
    Inventors: Alec A. Piplani, Dinah B. Quiachon, Wesley D. Sterman
  • Patent number: 5800518
    Abstract: Graft having a bifurcation for repairing an aneurysm in the vicinity of an aortic bifurcation in a patient comprising a main tubular body and first and second tubular legs joined to said main body in a bifurcation. The main body and the legs are formed of a flexible surgically implantable material. The main body and each of the first and second legs having an opening therein in communication with the other openings. Expandable spring attachments are secured to the main body adjacent the opening in the main body. An additional expandable spring attachment is secured to one of said legs adjacent the opening in said one leg.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: September 1, 1998
    Assignee: Endovascular Technologies, Inc.
    Inventors: Alec A. Piplani, Dinah B. Quiachon, Wesley D. Sterman
  • Patent number: 5782909
    Abstract: An intraluminal grafting system having a balloon catheter assembly, a capsule catheter assembly and capsule jacket assembly is used for deploying a graft having attachment means in the vessel of an animal body. The system contains a proximal capsule means and a distal capsule means, wherein the graft is disposed within the two capsule means and a removable sheath covers the graft and capsule means. The graft is comprised of a tubular member having superior and inferior ends, having attachment means with wall engaging members secured thereto. The balloon catheter is disposed within the capsule catheter to provide relative movement between the balloon catheter and the capsule catheter, whereby the graft can be removed from the capsule means. The balloon is inflated to firmly implant the graft and attachment means within the vessel. The graft and attachment means remain in the vessel after the intraluminal grafting system is withdrawn.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: July 21, 1998
    Assignee: Endovascular Technologies, Inc.
    Inventors: Dinah B. Quiachon, Alec A. Piplani, Larry G. Baughman
  • Patent number: 5769885
    Abstract: An intraluminal grafting system having a balloon catheter assembly, a capsule catheter assembly and capsule jacket assembly is used for deploying in the vessel of an animal body a bifurcated graft having a plurality of attachment systems. The deployment catheters contain an ipsilateral capsule assembly, a contralateral capsule assembly and a distal capsule assembly, wherein the attachment systems of the bifurcated graft are disposed within the three capsule assemblies. A removable sheath of the capsule jacket assembly covers the bifurcated graft and capsule assemblies to provide a smooth transition along the length of the deployment catheters. The bifurcated graft is comprised of a main tubular member and two tubular legs, having attachment systems with wall engaging members secured to the superior end of the main tubular member and the inferior ends of the tubular legs. An inflatable membrane configured on the balloon catheter is used to firmly implant the attachment systems within the vessel.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: June 23, 1998
    Assignee: Endovascular Technologies, Inc.
    Inventors: Dinah B. Quiachon, Alec A. Piplani, Richard S. Williams, Steve G. Baker, Peter K. Johansson
  • Patent number: 5749920
    Abstract: An intraluminal grafting system having a balloon catheter assembly, a capsule catheter assembly and capsule jacket assembly is used for deploying a graft having attachment means in the vessel of an animal body. The system contains a proximal capsule means and a distal capsule means, wherein the graft is disposed within the two capsule means and a removable sheath covers the graft and capsule means. The graft is comprised of a tubular member having superior and inferior ends, having attachment means with wall engaging members secured thereto. The balloon catheter is disposed within the capsule catheter to provide relative movement between the balloon catheter and the capsule catheter, whereby the graft can be removed from the capsule means. The balloon is inflated to firmly implant the graft and attachment means within the vessel. The graft and attachment means remain in the vessel after the intraluminal grafting system is withdrawn.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: May 12, 1998
    Assignee: EndoVascular Technologies, Inc.
    Inventors: Dinah B. Quiachon, Alec A. Piplani, Larry G. Baughman
  • Patent number: 5628783
    Abstract: An intraluminal grafting system having a balloon catheter assembly, a capsule catheter assembly and capsule jacket assembly is used for deploying in the vessel of an animal body a bifurcated graft having a plurality of attachment systems. The deployment catheters contain an ipsilateral capsule assembly, a contralateral capsule assembly and a distal capsule assembly, wherein the attachment systems of the bifurcated graft are disposed within the three capsule assemblies. A removable sheath of the capsule jacket assembly covers the bifurcated graft and capsule assemblies to provide a smooth transition along the length of the deployment catheters. The bifurcated graft is comprised of a main tubular member and two tubular legs, having attachment systems with wall engaging members secured to the superior end of the main tubular member and the inferior ends of the tubular legs. An inflatable membrane configured on the balloon catheter is used to firmly implant the attachment systems within the vessel.
    Type: Grant
    Filed: May 12, 1994
    Date of Patent: May 13, 1997
    Assignee: EndoVascular Technologies, Inc.
    Inventors: Dinah B. Quiachon, Alec A. Piplani, Richard S. Williams, Steve G. Baker, Peter K. Johansson
  • Patent number: 5609625
    Abstract: Graft having a bifurcation for repairing an aneurysm in the vicinity of an aortic bifurcation in a patient comprising a main tubular body and first and second tubular legs joined to said main body in a bifurcation. The main body and the legs are formed of a flexible surgically implantable material. The main body and each of the first and second legs having an opening therein in communication with the other openings. Expandable spring attachments are secured to the main body adjacent the opening in the main body. An additional expandable spring attachment is secured to one of said legs adjacent the opening in said one leg.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: March 11, 1997
    Assignee: Endovascular Technologies, Inc.
    Inventors: Alec A. Piplani, Dinah B. Quiachon, Wesley D. Sterman
  • Patent number: 5562728
    Abstract: Endovascular grafting system having a capsule catheter comprising a flexible elongate tubular member having proximal and distal extremities and a capsule mounted on the distal extremity of the tubular member. The capsule is generally cylindrical in shape and is formed of a helical wrap of a metal ribbon. The wraps are bonded into a unitary capsule permitting bending of said unitary capsule. A graft is disposed within the capsule. The graft is comprised of a tubular member having proximal and distal ends. Hooks are secured to the proximal and distal ends of the tubular member and face in a direction outwardly towards the inner wall of the capsule. A push rod is disposed within the capsule catheter and engages the graft whereby upon relative movement between the push rod and the capsule catheter, the graft can be forced out of the capsule.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: October 8, 1996
    Inventors: Harrison M. Lazarus, Ronald G. Williams, Wesley D. Sterman, Alec A. Piplani
  • Patent number: 5489295
    Abstract: Graft having a bifurcation for repairing an aneurysm in the vicinity of an aortic bifurcation in a patient comprising a main tubular body and first and second tubular legs joined to said main body in a bifurcation. The main body and the legs are formed of a flexible surgically implantable material. The main body and each of the first and second legs having an opening therein in communication with the other openings. Expandable spring attachments are secured to the main body adjacent the opening in the main body. An additional expandable spring attachment is secured to one of said legs adjacent the opening in said one leg.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: February 6, 1996
    Assignee: EndoVascular Technologies, Inc.
    Inventors: Alec A. Piplani, Dinah B. Quiachon, Wesley D. Sterman
  • Patent number: 5209731
    Abstract: Hand-held gun for inflating and deflating large volume balloons by the use of a syringe having a barrel and a syringe plunger having a head and slidably mounted in the barrel. The gun is provided with a handle adapted to be grasped by the hand. A housing is carried by the handle and is adapted to receive and retain the barrel of the syringe. A plunger rod is provided which has proximal and distal extremities and is slidably mounted in the handle for movement in a direction parallel to the movement of the syringe plunger between forward and rearward positions. A sleeve is secured to the proximal extremity of the plunger rod and extends coaxially for at least a portion of the plunger rod. A coil spring is mounted on the plunger rod for yieldably urging the plunger rod in a direction axially of the plunger rod toward the rearward position. A plate is secured to the sleeve and is adapted to be removably secured to the head of the syringe plunger.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: May 11, 1993
    Assignee: Endovascular Technologies, Inc.
    Inventors: Wesley D. Sterman, Ronald G. Williams, Alec A. Piplani