Patents by Inventor Liem Ho
Liem Ho 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: 7722643Abstract: Tissue connector assemblies having at least two piercing members, each releaseably coupled to a surgical fastener such as a surgical clip. A flexible member such as a suture may be used to couple one or both piercing members to respective ends of the fastener.Type: GrantFiled: July 29, 2002Date of Patent: May 25, 2010Assignee: Medtronic, Inc.Inventors: Laurent Schaller, Barry Gardiner, Art Hill, John Nguyen, Liem Ho, Isidro Matias Gandionco
-
Publication number: 20090264903Abstract: A surgical fastening apparatus including at least one self-closing clip and a deployment device. The self-closing clip comprises a wire defining an intermediate portion interconnecting opposing, first and second side portions having a memory set loop shape. The deployment device includes a clip holding assembly and an actuator. The clip holding assembly includes first and second containment arms and a transfer rod. The containment arms have a distal segment defining a lumen extending from an open, distal end. The transfer rod is associated with at least one of the containment arms in an axially movable fashion and forms an engagement feature. The actuator is connected to the transfer rod for controlling movement of the rod. Upon final assembly in a pre-deployment state, the engagement feature of the transfer rod engages the intermediate portion of the clip, and the side portions are captured by the containment arms.Type: ApplicationFiled: March 10, 2009Publication date: October 22, 2009Applicant: MEDTRONIC, INC.Inventors: Anthony Lee, Jasper Jackson, Liem Ho
-
Publication number: 20080154290Abstract: A system for anastomosing a first tubular structure to a second tubular structure having an opening formed therein comprises a support device having a plurality of arms forming spaces therebetween and a plurality of piercing members slidably coupled to the arms. The support device piercing members have a retracted state and an extended state to support the first tubular structure thereon for placement within an opening in the second tubular structure to facilitate anastomosing the tubular structures together. The arms can be configured to urge the first tubular structure against the portion of the second tubular structure surrounding the opening to form a seal therebetween. According to one embodiment, a plurality of discrete fasteners are provided to pass through the support device spaces and the first and second tubular structures. In another embodiment, fasteners are integrated into the support device and releasably coupled thereto for delivery to the anastomosis site.Type: ApplicationFiled: February 27, 2008Publication date: June 26, 2008Inventors: Steve Golden, Laurent Schaller, Demetri Mavroidis, Stephen Ainsworth, Kathleen Woodside, Liem Ho
-
Publication number: 20070106313Abstract: A system for anastomosing a first tubular structure to a second tubular structure having an opening formed therein comprises a support device having a plurality of arms forming spaces therebetween. The support device is adapted to support the first tubular structure within an opening in the second tubular structure to facilitate anastomosing the tubular structures together. The arms can be configured to urge the first tubular structure against the portion of the second tubular structure surrounding the opening to form a seal therebetween. According to one embodiment, a plurality of discrete fasteners are provided to pass through the support device spaces and the first and second tubular structures.Type: ApplicationFiled: December 21, 2006Publication date: May 10, 2007Inventors: Steve Golden, Liem Ho
-
Publication number: 20060004389Abstract: A tissue connector assembly comprising a multiple loop fastener movable between an open configuration and a closed configuration and a restraining device attached to the fastener for restraining the fastener in its open configuration provides for a self-closing, multiple suture fastener. A needle may be releasably attached to the fastener. A method for connecting tissues is also disclosed. The method includes inserting a fastener through tissue with the fastener being biased in an open position by a restraining device secured to the fastener, threading the fastener through more than one stitch, and removing the restraining device from the fastener.Type: ApplicationFiled: September 2, 2005Publication date: January 5, 2006Inventors: John Nguyen, Liem Ho, Cong Thach, Laurent Schaller, Nga Doan
-
Patent number: 6960221Abstract: A tissue connector assembly comprising a clip movable between an open configuration and a closed configuration and a mechanical restraining device including a plurality of strands releasably attachable to the clip for restraining the clip in its open configuration. A needle may be releasably attached to the clip. A flexible member may also interconnect the clip and the needle.Type: GrantFiled: July 1, 2002Date of Patent: November 1, 2005Assignee: Medtronic, Inc.Inventors: Liem Ho, Isidro Matias Gandionco, Nga T. Doan
-
Patent number: 6945980Abstract: A tissue connector assembly comprising a multiple loop fastener movable between an open configuration and a closed configuration and a restraining device attached to the fastener for restraining the fastener in its open configuration provides for a self-closing, multiple suture fastener. A needle may be releasably attached to the fastener. A method for connecting tissues is also disclosed. The method includes inserting a fastener through tissue with the fastener being biased in an open position by a restraining device secured to the fastener, threading the fastener through more than one stitch, and removing the restraining device from the fastener.Type: GrantFiled: April 5, 2001Date of Patent: September 20, 2005Assignee: Medtronic, Inc.Inventors: John D. Nguyen, Liem Ho, Cong Thach, Laurent Schaller, Nga Doan
-
Patent number: 6936055Abstract: This is a device for bridging the neck of either a wide-necked or narrow-necked aneurysm in the vasculature. In general, it is a device used to stabilize the presence of vaso-occlusive devices (such as helically wound coils) in the aneurysm. The device preferably is delivered by a core wire which terminates in an electrolytically severable joint. The core wire will often be insulated. The retainer assembly itself is also attached to the electrolytic joint and typically has a number of array elements which are intended to be resident within the aneurysm after the device is deployed from the distal end of a catheter. After deployment of this retainer, the aneurysm is at least partially filled with a vaso-occlusive device such as helically wound coils.Type: GrantFiled: March 10, 2000Date of Patent: August 30, 2005Assignee: SciMe Life Systems, Inc.Inventors: Christopher G. M. Ken, Thuzar K. Han, Matthew Yingwing Hui, Liem Ho
-
Publication number: 20050131429Abstract: Surgical connection apparatus comprises a support having a proximal portion with a distal end and a proximal portion. The support forms a pathway between the proximal and distal portions. A plurality of self-closing clips are slidably disposed in the pathway and a pusher is arranged to slidably move in the pathway and push the clips in a distal direction. The apparatus facilitates partial ejection of a clip after which the remainder of the clip is withdrawn therefrom. In one embodiment, the support comprises a tubular needle with the distal end being pointed. The needle can be used to penetrate the tissue or material to be joined and to manipulate or approximate tissue or material to be joined before the clip is partially ejected.Type: ApplicationFiled: December 10, 2003Publication date: June 16, 2005Inventors: Liem Ho, Steve Golden, Laurent Schaller
-
Publication number: 20050075667Abstract: Tissue connector assemblies having at least two piercing members, each releaseably coupled to a surgical fastener such as a surgical clip. A flexible member such as a suture may be used to couple one or both piercing members to respective ends of the fastener.Type: ApplicationFiled: August 28, 2003Publication date: April 7, 2005Inventors: Laurent Schaller, Barry Gardiner, Art Hill, John Nguyen, Liem Ho, Isidro Gandionco
-
Publication number: 20050070924Abstract: Surgical connection apparatus comprises a support structure, a plurality of clips, which can be self-closing clips, each clip being releasably coupled to the support structure, and a plurality of barbs, each barb being coupled to the support structure, the barbs being separate from the clips, which are ejectable from the support structure independently of the barbs.Type: ApplicationFiled: September 26, 2003Publication date: March 31, 2005Inventors: Laurent Schaller, Liem Ho, Tom Breton
-
Patent number: 6860893Abstract: This is an implantable vaso-occlusive device. The device has a complex, three-dimensional structure in a relaxed configuration that may be used in the approximate shape of an anatomical cavity. It may be deployed in the approximate shape of a sphere, an ovoid, a clover, a box-like structure or other distorted spherical shape. The loops forming the relaxed configuration may pass through the interior of the structure. The device is a self-forming shape made from a pre-formed linear vaso-occlusion member. Fibers may be introduced onto the device and affixed to the pre-formed linear member. The constituent member may be also be covered with a fibrous braid. The device is typically introduced through a catheter. The device is passed axially through the catheter sheath and assumes its form upon exiting the catheter without further action. The invention also includes methods of winding the anatomically shaped vaso-occlusive device into appropriately shaped forms and annealing them to form various devices.Type: GrantFiled: October 9, 2001Date of Patent: March 1, 2005Assignee: Boston Scientific SciMed, Inc.Inventors: Michael P. Wallace, Marc-Alan Levine, Delilah Yin Hui, Mary M. Chen, Liem Ho
-
Publication number: 20040102797Abstract: Apparatus and methods for performing an anastomosis. More particularly, the apparatus may be used to perform a single or multiple anastomosis with the ability of maintaining fluid flow (e.g., blood) through the anastomosis vessel according to one aspect of the invention.Type: ApplicationFiled: November 18, 2003Publication date: May 27, 2004Applicant: Coalescent Surgical, Inc.Inventors: Steve Golden, John Nguyen, Charles T. Maroney, Sid Gandionco, Laurent Schaller, Liem Ho
-
Publication number: 20040068276Abstract: A system for anastomosing a first tubular structure to a second tubular structure having an opening formed therein comprises a support device having a plurality of arms forming spaces therebetween and a plurality of piercing members slidably coupled to the arms. The support device piercing members have a retracted state and an extended state to support the first tubular structure thereon for placement within an opening in the second tubular structure to facilitate anastomosing the tubular structures together. The arms can be configured to urge the first tubular structure against the portion of the second tubular structure surrounding the opening to form a seal therebetween. According to one embodiment, a plurality of discrete fasteners are provided to pass through the support device spaces and the first and second tubular structures. In another embodiment, fasteners are integrated into the support device and releasably coupled thereto for delivery to the anastomosis site.Type: ApplicationFiled: January 10, 2003Publication date: April 8, 2004Inventors: Steve Golden, Laurent Schaller, Demetri Mavroidis, Stephen Ainsworth, Kathleen Woodside, Liem Ho
-
Publication number: 20040050393Abstract: A system for anastomosing a first tubular structure to a second tubular structure having an opening formed therein comprises a support device having a plurality of arms forming spaces therebetween. The support device is adapted to support the first tubular structure within an opening in the second tubular structure to facilitate anastomosing the tubular structures together. The arms can be configured to urge the first tubular structure against the portion of the second tubular structure surrounding the opening to form a seal therebetween. According to one embodiment, a plurality of discrete fasteners are provided to pass through the support device spaces and the first and second tubular structures.Type: ApplicationFiled: January 10, 2003Publication date: March 18, 2004Inventors: Steve Golden, Liem Ho
-
Patent number: 6695859Abstract: Apparatus and methods for performing an anastomosis. More particularly, the apparatus may be used to perform a single or multiple anastomosis with the ability of maintaining fluid flow (e.g., blood) through the anastomosis vessel according to one aspect of the invention.Type: GrantFiled: March 31, 2000Date of Patent: February 24, 2004Assignee: Coalescent Surgical, Inc.Inventors: Steve Golden, John Nguyen, Charles T. Maroney, Sid Gandionco, Laurent Schaller, Liem Ho
-
Patent number: 6613059Abstract: Tissue connector assemblies having at least two piercing members, each releaseably coupled to a surgical fastener such as a surgical clip. A flexible member such as a suture may be used to couple one or both piercing members to respective ends of the fastener.Type: GrantFiled: March 1, 1999Date of Patent: September 2, 2003Assignee: Coalescent Surgical, Inc.Inventors: Laurent Schaller, Barry Gardiner, Art Hill, John Nguyen, Liem Ho, Isidro Matias Gandionco
-
Publication number: 20030093118Abstract: A tissue connector assembly comprising a clip movable between an open configuration and a closed configuration and a mechanical restraining device including a plurality of strands releasably attachable to the clip for restraining the clip in its open configuration. A needle may be releasably attached to the clip. A flexible member may also interconnect the clip and the needle.Type: ApplicationFiled: July 1, 2002Publication date: May 15, 2003Applicant: Coalescent Surgical, Inc.Inventors: Liem Ho, Isidro Matias Gandionco, Nga T. Doan
-
Publication number: 20030078603Abstract: Tissue connector assemblies having at least two piercing members, each releaseably coupled to a surgical fastener such as a surgical clip. A flexible member such as a suture may be used to couple one or both piercing members to respective ends of the fastener.Type: ApplicationFiled: July 29, 2002Publication date: April 24, 2003Applicant: Coalescent Surgical, Inc.Inventors: Laurent Schaller, Barry Gardiner, Art Hill, John Nguyen, Liem Ho, Isidro Matias Gandionco
-
Patent number: 6514265Abstract: A tissue connector assembly comprising a clip movable between an open configuration and a closed configuration and a mechanical restraining device including a plurality of strands releasably attachable to the clip for restraining the clip in its open configuration. A needle may be releasably attached to the clip. A flexible member may also interconnect the clip and the needle.Type: GrantFiled: March 1, 1999Date of Patent: February 4, 2003Assignee: Coalescent Surgical, Inc.Inventors: Liem Ho, Isidro Matias Gandionco, Nga T. Doan