Patents by Inventor Alfredo R. Cantu

Alfredo R. Cantu 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: 20210205007
    Abstract: Devices, instruments and tools for minimally invasive surgical procedures. Port devices and methods for hemostatically sealing and providing a port through a tissue wall that interfaces with a fluid containing chamber, by minimally invasive techniques. Assemblies, instruments and methods for minimally invasive access to and through a tissue wall that interfaces with a fluid containing chamber, and for visualizing same. Instruments, assemblies and methods for minimally invasive surgical procedures, including ablation.
    Type: Application
    Filed: March 23, 2021
    Publication date: July 8, 2021
    Applicant: MAQUET CARDIOVASCULAR LLC
    Inventors: Evan R. ANDERSON, Alfredo R. CANTU, Albert K. CHIN, Amar KENDALE
  • Patent number: 10993766
    Abstract: Devices, instruments and tools for minimally invasive surgical procedures. Port devices and methods for hemostatically sealing and providing a port through a tissue wall that interfaces with a fluid containing chamber, by minimally invasive techniques. Assemblies, instruments and methods for minimally invasive access to and through a tissue wall that interfaces with a fluid containing chamber, and for visualizing same. Instruments, assemblies and methods for minimally invasive surgical procedures, including ablation.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: May 4, 2021
    Assignee: MAQUET CARDIOVASCULAR LLC
    Inventors: Evan R. Anderson, Alfredo R. Cantu, Albert K. Chin, Amar Kendale
  • Publication number: 20200046393
    Abstract: Devices, tools and methods for performing minimally invasive surgical procedures. Methods of performing minimally invasive ablation procedures. Methods of performing rapid exchange of tools in a device while the device remains in a reduced-access surgical space.
    Type: Application
    Filed: August 22, 2019
    Publication date: February 13, 2020
    Applicant: MAQUET CARDIOVASCULAR LLC
    Inventors: Amar KENDALE, Juan I. PEREZ, Fred VILLAGOMEZ, Frederick BARRIGAR, Joseph N. LAMBERTI, Amit AGARWAL, Peter L. CALLAS, Michael C. STEWART, Arthur M. LIN, Ryan C. ABBOTT, Alfredo R. CANTU
  • Patent number: 10517608
    Abstract: An instrument for treating a sinus cavity includes a cutter member, a rotatable member, and a fluid passage. The cutter member has a lumen extending therealong, and the rotatable member is received within the lumen. The rotatable member has a helical blade projecting from a distal end portion. The cutter member is configured to translate relative to the rotatable member. Thereby, the cutter member and the rotatable blade are configured to form an opening into the sinus cavity. The fluid passage extends through the cutter member from an inlet to an outlet. The outlet is positioned proximal to the helical blade such that the outlet is configured to fluidly communicate with the sinus cavity. The inlet is configured to receive at least one of a fluid and a vacuum in order to communicate the respective fluid or vacuum to the outlet for irrigating or suctioning the sinus cavity.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: December 31, 2019
    Assignee: Acclarent, Inc.
    Inventors: Thomas R. Jenkins, Meera L. Sankaran, Alfredo R. Cantu, Rohit Girotra
  • Publication number: 20180344391
    Abstract: Devices, instruments and tools for minimally invasive surgical procedures. Port devices and methods for hemostatically sealing and providing a port through a tissue wall that interfaces with a fluid containing chamber, by minimally invasive techniques. Assemblies, instruments and methods for minimally invasive access to and through a tissue wall that interfaces with a fluid containing chamber, and for visualizing same. Instruments, assemblies and methods for minimally invasive surgical procedures, including ablation.
    Type: Application
    Filed: August 7, 2018
    Publication date: December 6, 2018
    Applicant: Maquet Cardiovascular LLC
    Inventors: Evan R. ANDERSON, Alfredo R. CANTU, Albert K. CHIN
  • Patent number: 10058380
    Abstract: Devices, instruments and tools for minimally invasive surgical procedures. Port devices and methods for hemostatically sealing and providing a port through a tissue wall that interfaces with a fluid containing chamber, by minimally invasive techniques. Assemblies, instruments and methods for minimally invasive access to and through a tissue wall that interfaces with a fluid containing chamber, and for visualizing same. Instruments, assemblies and methods for minimally invasive surgical procedures, including ablation.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: August 28, 2018
    Assignee: MAQUET CORDIOVASCULAR LLC
    Inventors: Evan R. Anderson, Alfredo R. Cantu, Albert K. Chin
  • Publication number: 20170056043
    Abstract: An instrument for treating a sinus cavity includes a cutter member, a rotatable member, and a fluid passage. The cutter member has a lumen extending therealong, and the rotatable member is received within the lumen. The rotatable member has a helical blade projecting from a distal end portion. The cutter member is configured to translate relative to the rotatable member. Thereby, the cutter member and the rotatable blade are configured to form an opening into the sinus cavity. The fluid passage extends through the cutter member from an inlet to an outlet. The outlet is positioned proximal to the helical blade such that the outlet is configured to fluidly communicate with the sinus cavity. The inlet is configured to receive at least one of a fluid and a vacuum in order to communicate the respective fluid or vacuum to the outlet for irrigating or suctioning the sinus cavity.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 2, 2017
    Inventors: Thomas R. Jenkins, Meera L. Sankaran, Alfredo R. Cantu, Rohit Girotra
  • Publication number: 20150142041
    Abstract: Devices, tools and methods for performing minimally invasive surgical procedures. Methods of performing minimally invasive ablation procedures. Methods of performing rapid exchange of tools in a device while the device remains in a reduced-access surgical space.
    Type: Application
    Filed: December 22, 2014
    Publication date: May 21, 2015
    Applicant: MAQUET Cardiovascular LLC
    Inventors: Amar Kendale, Juan I. Perez, Fred Villagomez, Frederick Barrigar, Joseph N. Lamberti, Amit Agarwal, Peter L. Callas, Michael C. Stewart, Arthur M. Lin, Ryan C. Abbott, Alfredo R. Cantu
  • Publication number: 20130178849
    Abstract: Devices, instruments and tools for minimally invasive surgical procedures. Port devices and methods for hemostatically sealing and providing a port through a tissue wall that interfaces with a fluid containing chamber, by minimally invasive techniques. Assemblies, instruments and methods for minimally invasive access to and through a tissue wall that interfaces with a fluid containing chamber, and for visualizing same. Instruments, assemblies and methods for minimally invasive surgical procedures, including ablation.
    Type: Application
    Filed: February 27, 2013
    Publication date: July 11, 2013
    Applicant: Maquet Cardiovascular LLC
    Inventors: Evan R. Anderson, Alfredo R. Cantu, Albert K. Chin
  • Publication number: 20090093809
    Abstract: Devices, instruments and tools for minimally invasive surgical procedures. Port devices and methods for hemostatically sealing and providing a port through a tissue wall that interfaces with a fluid containing chamber, by minimally invasive techniques. Assemblies, instruments and methods for minimally invasive access to and through a tissue wall that interfaces with a fluid containing chamber, and for visualizing same. Instruments, assemblies and methods for minimally invasive surgical procedures, including ablation.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 9, 2009
    Inventors: Evan R. Anderson, Alfredo R. Cantu, Albert K. Chin
  • Publication number: 20090043243
    Abstract: Disclosed herein are methods, devices, and systems for folding a sealing element. A loader can receive a substantially unfolded sealing element, which when moved through the loader is configured for receipt in an insertion instrument. For example, the sealing element can be folded into a substantially prolate spheroidal shape. The folded sealing element can then be inserted into the insertion instrument. In one aspect, the loader is adapted to allow insertion of the folded sealing element into the insertion instrument when the folded sealing element is within a channel of the loader.
    Type: Application
    Filed: May 1, 2008
    Publication date: February 12, 2009
    Inventors: Paul A. DeLIPSKI, Albert K. CHIN, Arthur M. LIN, Alfredo R. CANTU, Thang Tom UNG
  • Publication number: 20080275479
    Abstract: Described herein are methods and devices for loading an anastomotic seal into a delivery lumen. A loading device can fold the seal into a configuration for insertion into the delivery lumen. For example, the loading device can fold the seal into a prolate spheroidal shape. The delivery lumen can then be inserted into the loading device and mated with the folded seal.
    Type: Application
    Filed: May 1, 2008
    Publication date: November 6, 2008
    Inventors: Albert K. Chin, Arthur M. Lin, Alfredo R. Cantu, Hung Pham
  • Publication number: 20080275501
    Abstract: Described herein are systems and methods for inserting a hemostatic seal into a delivery device. One such system can include a loading tool and a delivery device configured to detachably mate with one another. The loading tool can house a hemostatic seal in its unfolded configuration and can fold the seal for delivery into the delivery device. The delivery device can then be advanced into the loading tool to insert the seal into the delivery device.
    Type: Application
    Filed: May 1, 2008
    Publication date: November 6, 2008
    Inventors: Albert K. CHIN, Arthur M. Lin, Kenny Dang, Alfredo R. Cantu, Paul A. DeLipski, Ali Eslambolchi, Kumar Jambunathan, Kristopher Yee, Juan I. Perez
  • Publication number: 20080275437
    Abstract: A flexible connector for securing an ablation probe in a looped configuration around the pulmonary veins of a heart includes a flexible base member having first and second apertures dimensioned to receive the ablation probe and wherein the flexible base member is slidable along a length of the ablation probe when the ablation probe is positioned within the first and second apertures. The flexible base member further includes a third aperture dimensioned to receive a looped portion of the ablation probe. The flexible connector is advanced along the length of the ablation probe to form a crossover point with the returning portion of the ablation probe. A tether is secured to the flexible base member and is used to withdraw or remove the flexible connector.
    Type: Application
    Filed: March 21, 2008
    Publication date: November 6, 2008
    Inventors: Albert K. CHIN, Alfredo R. CANTU, Peter CALLAS
  • Publication number: 20080039879
    Abstract: Devices, tools and methods for occluding fluid flow between two walls of tissue in a patient. Two walls of tissue are compressed together with sufficient compressive force to prevent fluid flow between the two walls, while ensuring that the compressive force is not so great as to cause tissue necrosis. The devices, tools and methods may be carried out using minimally invasive surgical techniques, such as in reduced-access surgical sites. Devices, tools and methods are provided for occluding an atrial appendix.
    Type: Application
    Filed: August 9, 2006
    Publication date: February 14, 2008
    Inventors: Albert K. Chin, John W. Davis, Ketan Shroff, Amit Agarwal, Shuji Uemura, Alfredo R. Cantu, Geoffrey H. Willis, Peter L. Callas, Charles Gresl
  • Publication number: 20040171917
    Abstract: Stabilization devices, systems and methods for stabilizing tissue to perform a surgical operation while the heart of the patient continues to beat.
    Type: Application
    Filed: March 13, 2004
    Publication date: September 2, 2004
    Inventors: David J. Paul, Joshua K. Wallin, Eugene E. Reis, Alfredo R. Cantu, Harry L. Green, Harry Ino, Charles S. Taylor
  • Patent number: 6758808
    Abstract: Stabilization devices, systems and methods for stabilizing tissue to perform a surgical operation while the heart of the patient continues to beat. A stabilization system including a tissue contact member having a surface adapted to contact the tissue and temporarily maintain the tissue in a relatively immobilized state; and a maneuverable arm attached to the tissue contact member, which includes at least one articulating joint formed by a link having a male articulating surface composed of angled teeth and a female articulating surface having angled trenches adapted to receive the angled teeth.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: July 6, 2004
    Assignee: Cardiothoracic System, Inc.
    Inventors: David J. Paul, Joshua K. Wallin, Eugene E. Reis, Alfredo R. Cantu, Harry L. Green, Harry Ino, Charles S. Taylor
  • Publication number: 20020099268
    Abstract: Stabilization devices, systems and methods for stabilizing tissue to perform a surgical operation while the heart of the patient continues to beat.
    Type: Application
    Filed: January 24, 2001
    Publication date: July 25, 2002
    Inventors: David J. Paul, Joshua K. Wallin, Eugene E. Reis, Alfredo R. Cantu, Harry L. Green, Harry Ino, Charles S. Taylor
  • Patent number: 6214022
    Abstract: A plurality of embodiments of a distal perfusion device are disclosed, which device facilitates anastomosis constructions by maintaining a dry anastomosis site while simultaneously maintaining blood flow distally in the blood vessel to prevent ischemia and reduce overall patient trauma. The perfusion device is configured for installation into a blood vessel such as a left anterior descending coronary artery through an incision therein, to which is to be grafted a distal end of a blood vessel such as an internal mammary artery. The device includes a central member of selected configuration and material, terminating at either end thereof in respective selectively tapered end members. A lumen extending through the central member and end members, and selected perforations in the end members, maintain blood flow through the perfusion device.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: April 10, 2001
    Assignee: Cardiothoracic Systems, Inc.
    Inventors: Charles S. Taylor, Alfredo R. Cantu, Son M. Gia, Jeff A. Krolic, Robert G. Matheny, Amr Salahieh, Ivan Sepetka
  • Patent number: 6071297
    Abstract: A plurality of embodiments of a distal perfusion device are disclosed, which device facilitates anastomosis constructions by maintaining a dry anastomosis site while simultaneously maintaining blood flow distally in the blood vessel to prevent ischemia and reduce overall patient trauma. The perfusion device is configured for installation into a blood vessel such as a left anterior descending coronary artery through an incision therein, to which is to be grafted a distal end of a blood vessel such as an internal mammary artery. The device includes a central member of selected configuration and material, terminating at either end thereof in respective selectively tapered end members. A lumen extending through the central member and end members, and selected perforations in the end members, maintain blood flow through the perfusion device.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: June 6, 2000
    Assignee: Cardiothoracic Systems, Inc.
    Inventors: Amr Salahieh, Charles S. Taylor, Alfredo R. Cantu, Ivan Sepetka, Robert G. Matheny