Patents by Inventor Kevin To

Kevin To 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: 12201348
    Abstract: A medical device system may include transducers and a structure on which the transducers are located. The structure may include at least a first portion of each elongate member of a plurality of elongate members. Each respective set of a plurality of sets of one or more of the transducers may be located on a respective one of the plurality of elongate members. The structure may be selectively moveable between a delivery configuration in which the structure is sized to be percutaneously deliverable to a bodily cavity and a deployed configuration in which the structure is sized too large to be percutaneously deliverable to the bodily cavity. The second portion of each elongate member of the plurality of elongate members may be arranged in a helical configuration or a twisted, non-helical configuration including at least 360 degrees of rotation when the structure is in the delivery configuration.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: January 21, 2025
    Assignee: KARDIUM INC.
    Inventors: Derrick Kevin To, Fernando Luis de Souza Lopes, Saar Moisa, Ashkan Sardari, John Andrew Funk, Peter Josiah Hawes, Calvin Dane Cummings
  • Patent number: 11832804
    Abstract: A closure system for delivering a sealant to an arteriotomy. A distal section of the closure system can include overlapping inner and outer sleeves that can expand with expansion of the sealant. A proximal section of the closure system can include a handle portion and a sheath adapter extending from the handle portion. The handle portion can comprise one or more actuators that when depressed or engaged can assist in deployment of the sealant in the arteriotomy and can further include tamping of the sealant and/or retraction of an expandable member. The sheath adapter can removably engage a side port or an irrigation line of a standard procedural sheath. When the sheath adapter is secured to the procedural sheath, movement of the closure system can also move the procedural sheath.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: December 5, 2023
    Assignee: ACCESS CLOSURE, INC.
    Inventors: Ronald Ray Hundertmark, Kevin To, Curt Guyer, Rick Repp, Martin Schnitzer, Sravanthi Avuthu
  • Publication number: 20230338015
    Abstract: An apparatus for sealing a puncture through tissue having an introducer sheath therein includes an elongate positioning member including a housing on a proximal end and an expandable member on a distal end, and a cartridge advanceable along the positioning member from a proximal position to a distal position. The cartridge includes a tubular member including a sealant and an advancer member disposed within lumen of the tubular member. A sleeve is slidably disposed over the tubular member distal end such that, when the tubular member is advanced over the positioning member, the tubular member distal end enters the introducer sheath while the sleeve is stopped and slides over the tubular member to expose the tubular member distal end within the introducer sheath. The introducer sheath and cartridge are then withdrawn, exposing the sealant within the puncture.
    Type: Application
    Filed: November 29, 2022
    Publication date: October 26, 2023
    Inventors: Andy UCHIDA, Kevin To, Brandon Fell, Peter Alan Swenson
  • Publication number: 20230285012
    Abstract: A closure system for delivering a sealant to an arteriotomy. A distal section of the closure system can include overlapping inner and outer sleeves that can expand with expansion of the sealant. A proximal section of the closure system can include a handle portion and a sheath adapter extending from the handle portion. The handle portion can comprise one or more actuators that when depressed or engaged can assist in deployment of the sealant in the arteriotomy and can further include tamping of the sealant and/or retraction of an expandable member. The sheath adapter can removably engage a side port or an irrigation line of a standard procedural sheath. When the sheath adapter is secured to the procedural sheath, movement of the closure system can also move the procedural sheath.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 14, 2023
    Inventors: Ronald Ray Hundertmark, Kevin To, Curt Guyer, Rick Repp, Martin Schnitzer, Sravanthi Avuthu
  • Publication number: 20230070873
    Abstract: A closure system for delivering a sealant to an arteriotomy. A distal section of the closure system can include overlapping inner and outer sleeves that can expand with expansion of the sealant. A proximal section of the closure system can include a handle portion and a sheath adapter extending from the handle portion. The handle portion can comprise one or more actuators that when depressed or engaged can assist in deployment of the sealant in the arteriotomy and can further include tamping of the sealant and/or retraction of an expandable member. The sheath adapter can removably engage a side port or an irrigation line of a standard procedural sheath. When the sheath adapter is secured to the procedural sheath, movement of the closure system can also move the procedural sheath.
    Type: Application
    Filed: November 17, 2022
    Publication date: March 9, 2023
    Inventors: Ronald Ray HUNDERTMARK, Kevin To, Curt Guyer, Rick Repp, Martin Schnitzer, Sravanthi Avuthu
  • Patent number: 11534150
    Abstract: An apparatus for sealing a puncture through tissue having an introducer sheath therein includes an elongate positioning member including a housing on a proximal end and an expandable member on a distal end, and a cartridge advanceable along the positioning member from a proximal position to a distal position. The cartridge includes a tubular member including a sealant and an advancer member disposed within lumen of the tubular member. A sleeve is slidably disposed over the tubular member distal end such that, when the tubular member is advanced over the positioning member, the tubular member distal end enters the introducer sheath while the sleeve is stopped and slides over the tubular member to expose the tubular member distal end within the introducer sheath. The introducer sheath and cartridge are then withdrawn, exposing the sealant within the puncture.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: December 27, 2022
    Assignee: ACCESS CLOSURE, INC.
    Inventors: Andy Uchida, Kevin To, Brandon Fell, Peter Alan Swenson
  • Publication number: 20220225975
    Abstract: A sealant is provided for sealing a puncture through tissue that includes an elongate first section including a proximal end, a distal end, and a cross-section sized for delivery into a puncture through tissue, and a second section fused to and extending from the distal end of the first section. The first section may be formed from a freeze-dried hydrogel that expands when exposed to physiological fluid within a puncture. The second section may be formed from a solid mass of non-freeze-dried, non-crosslinked hydrogel precursors, the precursors remaining in an unreactive state until exposed to an aqueous physiological, whereupon the precursors undergo in-situ crosslinking with one another to provide an adhesive layer bonded to the first section. Apparatus and methods for delivering the sealant into a puncture through tissue are also provided.
    Type: Application
    Filed: August 30, 2021
    Publication date: July 21, 2022
    Inventors: Andy H. UCHIDA, Anthony P. SPIZUOCO, Kevin TO, Florencia LIM, Scott R. SERSHEN
  • Patent number: 11103224
    Abstract: A sealant is provided for sealing a puncture through tissue that includes an elongate first section including a proximal end, a distal end, and a cross-section sized for delivery into a puncture through tissue, and a second section fused to and extending from the distal end of the first section. The first section may be formed from a freeze-dried hydrogel that expands when exposed to physiological fluid within a puncture. The second section may be formed from a solid mass of non-freeze-dried, non-crosslinked hydrogel precursors, the precursors remaining in an unreactive state until exposed to an aqueous physiological, whereupon the precursors undergo in-situ crosslinking with one another to provide an adhesive layer bonded to the first section. Apparatus and methods for delivering the sealant into a puncture through tissue are also provided.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: August 31, 2021
    Assignee: ACCESS CLOSURE, INC.
    Inventors: Andy H. Uchida, Anthony P. Spizuoco, Kevin To, Florencia Lim, Scott R. Sershen
  • Patent number: 10874384
    Abstract: A sealant is provided for sealing a puncture through tissue that includes an elongate first section including a proximal end, a distal end, and a cross-section sized for delivery into a puncture through tissue, and a second section fused to and extending from the distal end of the first section. The first section may be formed from a freeze-dried hydrogel that expands when exposed to physiological fluid within a puncture. The second section may be formed from a solid mass of non-freeze-dried, non-crosslinked hydrogel precursors, the precursors remaining in an unreactive state until exposed to an aqueous physiological, whereupon the precursors undergo in-situ crosslinking with one another to provide an adhesive layer bonded to the first section. Apparatus and methods for delivering the sealant into a puncture through tissue are also provided.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: December 29, 2020
    Assignee: AccessClosure, Inc.
    Inventors: Andy H. Uchida, Anthony P. Spizuoco, Kevin To, Florencia Lim, Scott R. Sershen
  • Publication number: 20200054313
    Abstract: A closure system for delivering a sealant to an arteriotomy. A distal section of the closure system can include overlapping inner and outer sleeves that can expand with expansion of the sealant. A proximal section of the closure system can include a handle portion and a sheath adapter extending from the handle portion. The handle portion can comprise one or more actuators that when depressed or engaged can assist in deployment of the sealant in the arteriotomy and can further include tamping of the sealant and/or retraction of an expandable member. The sheath adapter can removably engage a side port or an irrigation line of a standard procedural sheath. When the sheath adapter is secured to the procedural sheath, movement of the closure system can also move the procedural sheath.
    Type: Application
    Filed: October 24, 2019
    Publication date: February 20, 2020
    Inventors: Ronald Ray Hundertmark, Kevin To, Curt Guyer, Rick Repp, Martin Schnitzer, Sravanthi Avuthu
  • Publication number: 20200015890
    Abstract: A medical device system may include transducers and a structure on which the transducers are located. The structure may include at least a first portion of each elongate member of a plurality of elongate members. Each respective set of a plurality of sets of one or more of the transducers may be located on a respective one of the plurality of elongate members. The structure may be selectively moveable between a delivery configuration in which the structure is sized to be percutaneously deliverable to a bodily cavity and a deployed configuration in which the structure is sized too large to be percutaneously deliverable to the bodily cavity. The second portion of each elongate member of the plurality of elongate members may be arranged in a helical configuration or a twisted, non-helical configuration including at least 360 degrees of rotation when the structure is in the delivery configuration.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Inventors: Derrick Kevin TO, Fernando Luis de Souza LOPES, Saar MOISA, Ashkan SARDARI, John Andrew FUNK, Peter Josiah HAWES, Calvin Dane CUMMINGS
  • Publication number: 20190336115
    Abstract: An apparatus for sealing a puncture through tissue having an introducer sheath therein includes an elongate positioning member including a housing on a proximal end and an expandable member on a distal end, and a cartridge advanceable along the positioning member from a proximal position to a distal position. The cartridge includes a tubular member including a sealant and an advancer member disposed within lumen of the tubular member. A sleeve is slidably disposed over the tubular member distal end such that, when the tubular member is advanced over the positioning member, the tubular member distal end enters the introducer sheath while the sleeve is stopped and slides over the tubular member to expose the tubular member distal end within the introducer sheath. The introducer sheath and cartridge are then withdrawn, exposing the sealant within the puncture.
    Type: Application
    Filed: May 21, 2019
    Publication date: November 7, 2019
    Inventors: Andy Uchida, Kevin To, Brandon Fell, Peter Alan Swenson
  • Patent number: 10456123
    Abstract: A closure system for delivering a sealant to an arteriotomy. A distal section of the closure system can include overlapping inner and outer sleeves that can expand with expansion of the sealant. A proximal section of the closure system can include a handle portion and a sheath adapter extending from the handle portion. The handle portion can include one or more actuators that when depressed or engaged can assist in deployment of the sealant in the arteriotomy and can further include tamping of the sealant and/or retraction of an expandable member. The sheath adapter can removably engage a side port or an irrigation line of a standard procedural sheath. When the sheath adapter is secured to the procedural sheath, movement of the closure system can also move the procedural sheath.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: October 29, 2019
    Assignee: ACCESS CLOSURE, INC.
    Inventors: Ronald R. Hundertmark, Kevin To, Curt Guyer, Rick Repp, Martin Schnitzer, Sravanthi Avuthu
  • Patent number: 10314567
    Abstract: An apparatus for sealing a puncture through tissue having an introducer sheath therein includes an elongate positioning member including a housing on a proximal end and an expandable member on a distal end, and a cartridge advanceable along the positioning member from a proximal position to a distal position. The cartridge includes a tubular member including a sealant and an advancer member disposed within lumen of the tubular member. A sleeve is slidably disposed over the tubular member distal end such that, when the tubular member is advanced over the positioning member, the tubular member distal end enters the introducer sheath while the sleeve is stopped and slides over the tubular member to expose the tubular member distal end within the introducer sheath. The introducer sheath and cartridge are then withdrawn, exposing the sealant within the puncture.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: June 11, 2019
    Assignee: ACCESS CLOSURE
    Inventors: Andy Uchida, Kevin To, Brandon Fell, Peter Alan Swenson
  • Publication number: 20190029659
    Abstract: A sealant is provided for sealing a puncture through tissue that includes an elongate first section including a proximal end, a distal end, and a cross-section sized for delivery into a puncture through tissue, and a second section fused to and extending from the distal end of the first section. The first section may be formed from a freeze-dried hydrogel that expands when exposed to physiological fluid within a puncture. The second section may be formed from a solid mass of non-freeze-dried, non-crosslinked hydrogel precursors, the precursors remaining in an unreactive state until exposed to an aqueous physiological, whereupon the precursors undergo in-situ crosslinking with one another to provide an adhesive layer bonded to the first section. Apparatus and methods for delivering the sealant into a puncture through tissue are also provided.
    Type: Application
    Filed: August 6, 2018
    Publication date: January 31, 2019
    Applicant: ACCESS CLOSURE, INC.
    Inventors: Andy H. Uchida, Anthony P. Spizuoco, Kevin To, Florencia Lim, Scott R. Sershen
  • Patent number: 10182800
    Abstract: A sealant is provided for sealing a puncture through tissue that includes an elongate first section including a proximal end, a distal end, and a cross-section sized for delivery into a puncture through tissue, and a second section fused to and extending from the distal end of the first section. The first section may be formed from a freeze-dried hydrogel that expands when exposed to physiological fluid within a puncture. The second section may be formed from a solid mass of non-freeze-dried, non-crosslinked hydrogel precursors, the precursors remaining in an unreactive state until exposed to an aqueous physiological, whereupon the precursors undergo in-situ crosslinking with one another to provide an adhesive layer bonded to the first section. Apparatus and methods for delivering the sealant into a puncture through tissue are also provided.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: January 22, 2019
    Assignee: ACCESS CLOSURE, INC.
    Inventors: Andy H. Uchida, Anthony P. Spizuoco, Kevin To, Florencia Lim, Scott R. Sershen
  • Patent number: 9532785
    Abstract: Methods and devices for maintaining vascular access and/or minimizing bleeding during percutaneous interventions. The method can include advancing an access wire through a previously placed access catheter in a contralateral femoral artery to position an inflatable balloon on the access wire in a vascular access sheath located in an ipsilateral femoral artery, without using any additional guidewires to advance the access wire. After withdrawing the vascular access sheath at least partway out of the ipsilateral femoral artery to expose the vascular injury, the balloon can be inflated to occlude the ipsilateral femoral artery or an ipsilateral iliofemoral artery at or near the vascular injury.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: January 3, 2017
    Assignee: Access Closure, Inc.
    Inventors: Ali Hassan, Kevin To, Andy H. Uchida, Jose Garcia
  • Publication number: 20160296218
    Abstract: An apparatus for sealing a puncture through tissue having an introducer sheath therein includes an elongate positioning member including a housing on a proximal end and an expandable member on a distal end, and a cartridge advanceable along the positioning member from a proximal position to a distal position. The cartridge includes a tubular member including a sealant and an advancer member disposed within lumen of the tubular member. A sleeve is slidably disposed over the tubular member distal end such that, when the tubular member is advanced over the positioning member, the tubular member distal end enters the introducer sheath while the sleeve is stopped and slides over the tubular member to expose the tubular member distal end within the introducer sheath. The introducer sheath and cartridge are then withdrawn, exposing the sealant within the puncture.
    Type: Application
    Filed: June 13, 2016
    Publication date: October 13, 2016
    Applicant: ACCESS CLOSURE, INC.
    Inventors: ANDY UCHIDA, KEVIN TO, BRANDON FELL, PETER ALAN
  • Patent number: 9386968
    Abstract: An apparatus for sealing a puncture through tissue having an introducer sheath therein includes an elongate positioning member including a housing on a proximal end and an expandable member on a distal end, and a cartridge advanceable along the positioning member from a proximal position to a distal position. The cartridge includes a tubular member including a sealant and an advancer member disposed within lumen of the tubular member. A sleeve is slidably disposed over the tubular member distal end such that, when the tubular member is advanced over the positioning member, the tubular member distal end enters the introducer sheath while the sleeve is stopped and slides over the tubular member to expose the tubular member distal end within the introducer sheath. The introducer sheath and cartridge are then withdrawn, exposing the sealant within the puncture.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: July 12, 2016
    Assignee: Access Closure, Inc.
    Inventors: Andy H. Uchida, Kevin To, Brandon Fell, Peter A. Swenson
  • Publication number: 20160135796
    Abstract: A closure system for delivering a sealant to an arteriotomy. A distal section of the closure system can include overlapping inner and outer sleeves that can expand with expansion of the sealant. A proximal section of the closure system can include a handle portion and a sheath adapter extending from the handle portion. The handle portion can comprise one or more actuators that when depressed or engaged can assist in deployment of the sealant in the arteriotomy and can further include tamping of the sealant and/or retraction of an expandable member. The sheath adapter can removably engage a side port or an irrigation line of a standard procedural sheath. When the sheath adapter is secured to the procedural sheath, movement of the closure system can also move the procedural sheath.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 19, 2016
    Applicant: ACCESS CLOSURE, INC.
    Inventors: RONALD R. HUNDERTMARK, KEVIN TO, CURT GUYER, RICK REPP, MARTIN SCHNITZER, SRAVANTHI AVUTHU