Patents by Inventor Hans Valencia

Hans Valencia 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).

  • Publication number: 20200138514
    Abstract: A medical instrument tip for penetrating tissue may include a body having a diameter of less than 5 mm, and a blade having a plurality of faces and a plurality of cutting edges. At least one cutting edge may have a dihedral angle of less than 50 degrees. A medical instrument tip may be included in an ablation instrument that also includes a cable and a conductive antenna body coupled to the cable for delivering ablative energy to a target tissue.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 7, 2020
    Applicant: Intuitive Surgical Operations, Inc.
    Inventors: Stephen J. Blumenkranz, Hans Valencia
  • Publication number: 20140364899
    Abstract: Embodiments are described for closing vascular access ports, such as arteriotomies, which involve placement and deployment of an expandable device configured to prevent blood flow across a subject arteriotomy while also keeping disturbance of intravascular flow to a minimum. Suitable prostheses may comprise one or more frames constructed from lengths of flexible materials, such as shape memory alloys or polymers. Such frames may be coupled to sheetlike or tube-like structures configured to spread loads, minimize thrombosis which may be related to intravascular flow, and maintain hemostasis.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 11, 2014
    Inventors: Richard GINN, Hans VALENCIA
  • Publication number: 20140142618
    Abstract: Embodiments are described for closing vascular access ports, such as arteriotomies, which involve placement and deployment of an expandable device configured to prevent blood flow across a subject arteriotomy while also keeping disturbance of intravascular flow to a minimum. Suitable prostheses may comprise one or more frames constructed from lengths of flexible materials, such as shape memory alloys or polymers. Such frames may be coupled to sheetlike or tube-like structures configured to spread loads, minimize thrombosis which may be related to intravascular flow, and maintain hemostasis.
    Type: Application
    Filed: September 11, 2013
    Publication date: May 22, 2014
    Inventors: Eric Leopold, Richard Ginn, Hans Valencia, Ronald Jabba
  • Patent number: 8608790
    Abstract: A catheter assembly for treatment of a vessel bifurcation. The catheter assembly is adapted for use with a single guidewire, wherein the guidewire is used to both position the catheter assembly within a main vessel of the vessel bifurcated and then be advanced into a branch vessel of the vessel bifurcated. A guidewire lumen of the catheter assembly is defined by a portion of a catheter shaft of the catheter assembly and a portion of a side catheter branch of the catheter assembly. The side catheter branch extends from a distal end of the catheter shaft at a proximal location and is connected at a distal location to a main catheter branch. After the catheter assembly has been advanced over the guidewire to a position within the main vessel at the vessel bifurcation, the guidewire is retracted, a portion of the side catheter branch is advanced into the branch vessel, and the guidewire is advanced into the branch vessel.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: December 17, 2013
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Hans Valencia, Andrzej Malewicz, Adam Jennings
  • Patent number: 8425590
    Abstract: The present invention is directed to a stent for use in a bifurcated body lumen having a main branch and a side branch. The stent comprises a radially expandable generally tubular stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween. The surface has a geometrical configuration defining a first pattern, and the first pattern has first pattern struts and connectors arranged in a predetermined configuration. The stent also comprises a branch portion comprised of a second pattern, wherein the branch portion is at least partially detachable from the stent body.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: April 23, 2013
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Amnon Yadin, Hans Valencia
  • Patent number: 8323325
    Abstract: The present invention provides a catheter system which includes a catheter, an expandable balloon, at least one securement member, and a stent. The stent is disposed about the catheter and comprises at least one undulating band that extends circumferentially around the longitudinal axis of the catheter system. The undulating band includes interconnected strut members which form a series of alternating peaks and valleys. Adjacent strut members comprise a strut pair, wherein each strut member of the strut pair includes a protuberance positioned along the length of the strut member, between a peak and a valley. The protuberances, which are substantially circumferentially opposed to one another, engage a securement member, thereby minimizing lateral stent movement on the delivery system during delivery.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: December 4, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Hans Valencia
  • Publication number: 20120283545
    Abstract: Percutaneous endovascular delivery of cardiac prosthetic devices is described through deep vascular access. Specifically, minimally intrusive access is achieved at points in the vascular tree having a size not usually achievable with existing tools. Localizing guide wires having visualization markings enable controlled passage through the vascular system.
    Type: Application
    Filed: December 5, 2011
    Publication date: November 8, 2012
    Inventors: Karl-Heinz Kuck, Amr Salahieh, Hans Valencia, Claudio Argento, Tom Saul
  • Publication number: 20110230960
    Abstract: The present invention is directed to a stent for use in a bifurcated body lumen having a main branch and a side branch. The stent comprises a radially expandable generally tubular stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween. The surface has a geometrical configuration defining a first pattern, and the first pattern has first pattern struts and connectors arranged in a predetermined configuration. The stent also comprises a branch portion comprised of a second pattern, wherein the branch portion is at least partially detachable from the stent body.
    Type: Application
    Filed: May 31, 2011
    Publication date: September 22, 2011
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Amnon Yadin, Hans Valencia
  • Patent number: 7951192
    Abstract: The present invention is directed to a stent for use in a bifurcated body lumen having a main branch and a side branch. The stent comprises a radially expandable generally tubular stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween. The surface has a geometrical configuration defining a first pattern, and the first pattern has first pattern struts and connectors arranged in a predetermined configuration. The stent also comprises a branch portion comprised of a second pattern, wherein the branch portion is at least partially detachable from the stent body.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: May 31, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Amnon Yadin, Hans Valencia
  • Patent number: 7824443
    Abstract: An apparatus for endovascularly replacing a patient's heart valve. In some embodiments, the apparatus includes a replacement heart valve implant comprising a valve and an expandable anchor; and a deployment tool adapted to endovascularly deliver the replacement heart valve implant to an implant site within the patient, the deployment tool comprising an actuator adapted to exert an axially directed force on the anchor. The invention also provides a method for endovascularly replacing a heart valve of a patient. In some embodiments, the method includes the steps of endovascularly delivering a replacement heart valve implant having a valve and an anchor to an implant site within the patient; and applying an axially directed force from an actuator outside of the patient to the anchor. In invention also provides deployment tools for performing the method.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: November 2, 2010
    Assignee: Sadra Medical, Inc.
    Inventors: Amr Salahieh, Dwight Morejohn, Ulrich R. Haug, Brian Brandt, Hans Valencia, Tom Saul
  • Publication number: 20090319030
    Abstract: The present invention is directed to a stent for use in a bifurcated body lumen having a main branch and a side branch. The stent comprises a radially expandable generally tubular stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween. The surface has a geometrical configuration defining a first pattern, and the first pattern has first pattern struts and connectors arranged in a predetermined configuration. The stent also comprises a branch portion comprised of a second pattern, wherein the branch portion is at least partially detachable from the stent body.
    Type: Application
    Filed: August 25, 2009
    Publication date: December 24, 2009
    Inventors: Amnon Yadin, Hans Valencia
  • Patent number: 7578841
    Abstract: The present invention is directed to a stent for use in a bifurcated body lumen having a main branch and a side branch. The stent comprises a radially expandable generally tubular stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween. The surface has a geometrical configuration defining a first pattern, and the first pattern has first pattern struts and connectors arranged in a predetermined configuration. The stent also comprises a branch portion comprised of a second pattern, wherein the branch portion is at least partially detachable from the stent body.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: August 25, 2009
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Amnon Yadin, Hans Valencia
  • Patent number: 7537608
    Abstract: A stent that has a middle section is that is engaged to the proximal section and the distal section by rotational links which extend about the circumference of the stent. The reduced diameters of the proximal section and the distal section are smaller than the reduced diameter of the middle section.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: May 26, 2009
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Hans Valencia, Daniel Gregorich
  • Publication number: 20080086191
    Abstract: A catheter assembly for treatment of a vessel bifurcation. The catheter assembly is adapted for use with a single guidewire, wherein the guidewire is used to both position the catheter assembly within a main vessel of the vessel bifurcated and then be advanced into a branch vessel of the vessel bifurcated. A guidewire lumen of the catheter assembly is defined by a portion of a catheter shaft of the catheter assembly and a portion of a side catheter branch of the catheter assembly. The side catheter branch extends from a distal end of the catheter shaft at a proximal location and is connected at a distal location to a main catheter branch. After the catheter assembly has been advanced over the guidewire to a position within the main vessel at the vessel bifurcation, the guidewire is retracted, a portion of the side catheter branch is advanced into the branch vessel, and the guidewire is advanced into the branch vessel.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 10, 2008
    Inventors: Hans Valencia, Andrzej Malewicz, Adam Jennings
  • Publication number: 20080077224
    Abstract: The present invention provides a catheter system which includes a catheter, an expandable balloon, at least one securement member, and a stent. The stent is disposed about the catheter and comprises at least one undulating band that extends circumferentially around the longitudinal axis of the catheter system. The undulating band includes interconnected strut members which form a series of alternating peaks and valleys. Adjacent strut members comprise a strut pair, wherein each strut member of the strut pair includes a protuberance positioned along the length of the strut member, between a peak and a valley. The protuberances, which are substantially circumferentially opposed to one another, engage a securement member, thereby minimizing lateral stent movement on the delivery system during delivery.
    Type: Application
    Filed: September 25, 2006
    Publication date: March 27, 2008
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Hans Valencia
  • Publication number: 20070276464
    Abstract: A stent that has a middle section is that is engaged to the proximal section and the distal section by rotational links which extend about the circumference of the stent. The reduced diameters of the proximal section and the distal section are smaller than the reduced diameter of the middle section.
    Type: Application
    Filed: May 23, 2006
    Publication date: November 29, 2007
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Hans Valencia, Daniel Gregorich
  • Publication number: 20070244552
    Abstract: Methods and devices for assessing the operation of a replacement heart valve. The method includes endovascularly delivering a replacement heart valve to a vicinity of a heart valve in an unexpanded configuration, and assessing the operation of the replacement heart valve in the vicinity of the heart valve before fully expanding the replacement heart valve. Methods and devices for assessing the location of a replacement heart valve. The method includes endovascularly delivering a replacement heart valve to a vicinity of the heart valve in an unexpanded configuration, expanding the replacement heart valve to a partially deployed configuration, and assessing the location of the replacement heart valve in the vicinity of the heart valve before fully expanding the replacement heart valve.
    Type: Application
    Filed: April 4, 2007
    Publication date: October 18, 2007
    Inventors: Amr Salahieh, Brian Brandt, Dwight Morejohn, Ulrich Haug, Jean-Pierre Dueri, Hans Valencia, Robert Geshlider, Jeff Krolik
  • Publication number: 20070203503
    Abstract: The present invention relates to apparatus and methods for endovascularly delivering and releasing a prosthesis, e.g., an aortic prosthesis, within and/or across a patient's native heart valve, referred to hereinafter as replacing the patient's heart valve. In some embodiments the delivery system comprises a plurality of first actuatable element adapted to engage a plurality of second elements in a first configuration to capture the implant within the delivery system, and wherein the plurality of first actuatable element are adapted to engage the plurality of second elements in a second configuration and to release the implant from the delivery system.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 30, 2007
    Inventors: Amr Salahieh, Hans Valencia, Brian Brandt, Claudio Argento, Ulrich Haug, Jean-Pierre Dueri, Daniel Hildebrand, Dwight Morejohn, Tom Saul
  • Publication number: 20070162107
    Abstract: The present invention provides methods and apparatus for endovascularly replacing a patient's heart valve. The apparatus includes a replacement valve and an anchor having an expandable braid. In some embodiments, the expandable braid is fabricated from a single strand of wire. In some embodiments, the expandable braid comprises at least one turn feature. The anchor and the valve preferably are configured for endovascular delivery and deployment.
    Type: Application
    Filed: March 9, 2007
    Publication date: July 12, 2007
    Applicant: Sadra Medical, Inc.
    Inventors: Ulrich Haug, Hans Valencia, Robert Geshlider, Tom Saul, Amr Salahieh, Dwight Morejohn
  • Publication number: 20070010877
    Abstract: The invention includes methods of and apparatus for endovascularly replacing a heart valve of a patient. One aspect of the invention provides a method including the steps of endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve in an unexpanded configuration; and applying an external non-hydraulically expanding or non-pneumatically expanding actuation force on the anchor to change the shape of the anchor, such as by applying proximally and/or distally directed force on the anchor using a releasable deployment tool to expand and contract the anchor or parts of the anchor. Another aspect of the invention provides an apparatus including a replacement valve; an anchor; and a deployment tool comprising a plurality of anchor actuation elements adapted to apply a non-hydraulically expanding or non-pneumatically expanding actuation force on the anchor to reshape the anchor.
    Type: Application
    Filed: September 14, 2006
    Publication date: January 11, 2007
    Inventors: Amr Salahieh, Jean-Pierre Dueri, Hans Valencia, Daniel Hildebrand, Brian Brandt, Dwight Morejohn, Claudio Argento, Tom Saul, Ulrich Haug