Patents by Inventor Daren Stewart

Daren Stewart 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: 10828023
    Abstract: A suture passer comprising: a hollow tube, said hollow tube comprising a distal end, a proximal end, and a lumen extending from said distal end to said proximal end; and a suture manipulation rod slidably received in said lumen of said hollow tube and selectively projectable out said distal end of said hollow tube, said suture manipulation rod comprising a distal end and a proximal end, said distal end of said suture manipulation rod being bifurcated into a first arm and a second arm, wherein said first arm includes a hook comprising a proximally oriented hooking surface and a return extending proximally of said hooking surface; wherein said hollow tube and said suture manipulation rod are sized so that said suture manipulation rod may capture a suture disposed adjacent to said distal end of said hollow tube and draw the suture into said lumen of said hollow tube, and further wherein, after a suture has been drawn into said lumen of said hollow tube, distal movement of said suture manipulation rod causes t
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 10, 2020
    Assignee: Stryker Corporation
    Inventors: Daren Stewart, James Flom
  • Publication number: 20200275931
    Abstract: Dry anti-microbial powder is applied to an incision or wound and surrounding area. A skin closure device is applied to the incision or wound. The incision or wound is closed, either before the closure device is applied or with closure device application. A sterile island dressing is then be applied over the incision or wound with the closure device and anti-microbial powder applied. The absorbent pad of the dressing can be applied directly over the incision or wound to absorb excess blood, pus, or other exudate. The anti-microbial powder mixes with the exudate before or as the exudate is absorbed. The anti-microbial powder in the exudate mixture reduces bacterial and/or microbial growth in the mixture, thereby reducing the infection risk to the closed incision or wound, as well as reducing fouling of the wound dressing and undesirable smells.
    Type: Application
    Filed: November 16, 2018
    Publication date: September 3, 2020
    Inventors: Amir Belson, Kei Ichiryu, Daren Stewart, Eric Storne
  • Publication number: 20200046341
    Abstract: A suture passer comprising: a shaft having an axis; a first jaw mounted to the shaft in alignment with the axis, the first jaw being configured to releasably support a length of suture thereon; a second jaw movably mounted to the shaft; and a needle movably mounted to the shaft, the needle having a hook and being configured to reciprocate in alignment with the axis so that the hook can selectively pass by the second jaw and engage suture releasably supported on the first jaw; wherein the first jaw comprises a spring for selectively binding the suture to the first jaw, and further wherein the spring comprises a recess for receiving the suture therein.
    Type: Application
    Filed: July 18, 2019
    Publication date: February 13, 2020
    Inventors: David Skinlo, Scott Heneveld, Thomas Weisel, Daren Stewart, Andrew Lantz, Roger Pisarnwongs
  • Publication number: 20190290198
    Abstract: Systems, devices, and methods for post-surgical joint range of motion measurement, activity monitoring, as well as monitoring compliance with post-operative extremity elevation and cooling recommendations are provided. The system comprises sensor(s) to be attached adjacent a joint of the patient, with limb attachment element(s), applications running on a computing device of the patient and medical practitioner, and a cloud-based backend system.
    Type: Application
    Filed: April 17, 2019
    Publication date: September 26, 2019
    Inventors: Amir Belson, Keiichiro Ichiryu, Zachary Kimura, Mark Shughart, Harold Sampson, Daren Stewart, Eric Storne, John Tighe
  • Patent number: 10405850
    Abstract: A suture passer comprising: a hollow tube, said hollow tube comprising a distal end, a proximal end, and a lumen extending from said distal end to said proximal end; and a suture manipulation rod slidably received in said lumen of said hollow tube and selectively projectable out said distal end of said hollow tube, said suture manipulation rod comprising a distal end and a proximal end, said distal end of said suture manipulation rod being bifurcated into a first arm and a second arm, wherein said first arm includes a hook comprising a proximally oriented hooking surface and a return extending proximally of said hooking surface; wherein said hollow tube and said suture manipulation rod are sized so that said suture manipulation rod may capture a suture disposed adjacent to said distal end of said hollow tube and draw the suture into said lumen of said hollow tube, and further wherein, after a suture has been drawn into said lumen of said hollow tube, distal movement of said suture manipulation rod causes t
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: September 10, 2019
    Assignee: Pivot Medical, Inc.
    Inventors: Daren Stewart, James Flom
  • Patent number: 10357243
    Abstract: A suture passer comprising: a shaft having an axis; a first jaw mounted to the shaft in alignment with the axis, the first jaw being configured to releasably support a length of suture thereon; a second jaw movably mounted to the shaft; and a needle movably mounted to the shaft, the needle having a hook and being configured to reciprocate in alignment with the axis so that the hook can selectively pass by the second jaw and engage suture releasably supported on the first jaw; wherein the first jaw comprises a spring for selectively binding the suture to the first jaw, and further wherein the spring comprises a recess for receiving the suture therein.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: July 23, 2019
    Assignee: Pivot Medical, Inc.
    Inventors: David Skinlo, Scott Heneveld, Thomas Weisel, Daren Stewart, Andrew Lantz, Roger Pisarnwongs
  • Publication number: 20190110790
    Abstract: A suture passer comprising: a hollow tube, the hollow tube comprising a distal end, a proximal end, and a lumen extending from the distal end to the proximal end; and a clamping rod slidably received in the lumen of the hollow tube, the clamping rod comprising a distal end and a proximal end, the distal end being bifurcated into a first arm and a second arm, one of the first and second arms extending distally of the other of the first and second arms and including a clamping surface; wherein at least one of the first arm and the second arm comprises a friction-enhancing surface for facilitating manipulation of a suture via engagement of the suture with the friction-enhancing surface.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 18, 2019
    Inventors: Daren Stewart, Roger Pisarnwongs, James Flom, Bryan Kelly
  • Patent number: 10098631
    Abstract: A suture passer comprising: a hollow tube, the hollow tube comprising a distal end, a proximal end, and a lumen extending from the distal end to the proximal end; and a clamping rod slidably received in the lumen of the hollow tube, the clamping rod comprising a distal end and a proximal end, the distal end being bifurcated into a first arm and a second arm, one of the first and second arms extending distally of the other of the first and second arms and including a clamping surface.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: October 16, 2018
    Assignee: Pivot Medical, Inc.
    Inventors: Daren Stewart, Roger Pisarnwongs, James Flom
  • Patent number: 9931114
    Abstract: A suture passer comprising: a hollow tube, the hollow tube comprising a distal end, a proximal end, and a lumen extending from the distal end to the proximal end; and a clamping rod slidably received in the lumen of the hollow tube, the clamping rod comprising a distal end and a proximal end, the distal end being bifurcated into a first arm and a second arm, one of the first and second arms extending distally of the other of the first and second arms and including a clamping surface; wherein at least one of the first arm and the second arm comprises a friction-enhancing surface for facilitating manipulation of a suture via engagement of the suture with the friction-enhancing surface.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: April 3, 2018
    Assignee: Pivot Medical, Inc.
    Inventors: Daren Stewart, Roger Pisarnwongs, James Flom
  • Publication number: 20170360434
    Abstract: A suture passer comprising: a hollow tube, said hollow tube comprising a distal end, a proximal end, and a lumen extending from said distal end to said proximal end; and a suture manipulation rod slidably received in said lumen of said hollow tube and selectively projectable out said distal end of said hollow tube, said suture manipulation rod comprising a distal end and a proximal end, said distal end of said suture manipulation rod being bifurcated into a first arm and a second arm, wherein said first arm includes a hook comprising a proximally oriented hooking surface and a return extending proximally of said hooking surface; wherein said hollow tube and said suture manipulation rod are sized so that said suture manipulation rod may capture a suture disposed adjacent to said distal end of said hollow tube and draw the suture into said lumen of said hollow tube, and further wherein, after a suture has been drawn into said lumen of said hollow tube, distal movement of said suture manipulation rod causes t
    Type: Application
    Filed: August 31, 2017
    Publication date: December 21, 2017
    Inventors: Daren Stewart, James Flom
  • Publication number: 20170325809
    Abstract: A suture passer comprising: a hollow tube, the hollow tube comprising a distal end, a proximal end, and a lumen extending from the distal end to the proximal end; and a clamping rod slidably received in the lumen of the hollow tube, the clamping rod comprising a distal end and a proximal end, the distal end being bifurcated into a first arm and a second arm, one of the first and second arms extending distally of the other of the first and second arms and including a clamping surface; wherein at least one of the first arm and the second arm comprises a friction-enhancing surface for facilitating manipulation of a suture via engagement of the suture with the friction-enhancing surface.
    Type: Application
    Filed: August 2, 2017
    Publication date: November 16, 2017
    Inventors: Daren Stewart, Roger Pisarnwongs, Bryan Kelly, James Flom
  • Publication number: 20160249906
    Abstract: A suture passer comprising: a shaft having an axis; a first jaw mounted to the shaft in alignment with the axis, the first jaw being configured to releasably support a length of suture thereon; a second jaw movably mounted to the shaft; and a needle movably mounted to the shaft, the needle having a hook and being configured to reciprocate in alignment with the axis so that the hook can selectively pass by the second jaw and engage suture releasably supported on the first jaw; wherein the first jaw comprises a spring for selectively binding the suture to the first jaw, and further wherein the spring comprises a recess for receiving the suture therein.
    Type: Application
    Filed: December 1, 2015
    Publication date: September 1, 2016
    Inventors: David Skinlo, Scott Heneveld, Thomas Weisel, Daren Stewart, Andrew Lantz, Roger Pisarnwongs
  • Patent number: 9198655
    Abstract: A suture passer comprising: a shaft having an axis; a first jaw mounted to the shaft in alignment with the axis, the first jaw being configured to releasably support a length of suture thereon; a second jaw movably mounted to the shaft; and a needle movably mounted to the shaft, the needle having a hook and being configured to reciprocate in alignment with the axis so that the hook can selectively pass by the second jaw and engage suture releasably supported on the first jaw; wherein the first jaw comprises a spring for selectively binding the suture to the first jaw, and further wherein the spring comprises a recess for receiving the suture therein.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: December 1, 2015
    Assignee: Pivot Medical, Inc.
    Inventors: David Skinlo, Scott Heneveld, Thomas Weisel, Daren Stewart, Andrew Lantz, Roger Pisarnwongs
  • Publication number: 20150320417
    Abstract: A suture passer comprising: a hollow tube, the hollow tube comprising a distal end, a proximal end, and a lumen extending from the distal end to the proximal end; and a clamping rod slidably received in the lumen of the hollow tube, the clamping rod comprising a distal end and a proximal end, the distal end being bifurcated into a first arm and a second arm, one of the first and second arms extending distally of the other of the first and second arms and including a clamping surface; wherein at least one of the first arm and the second arm comprises a friction-enhancing surface for facilitating manipulation of a suture via engagement of the suture with the friction-enhancing surface.
    Type: Application
    Filed: September 17, 2013
    Publication date: November 12, 2015
    Inventors: Daren Stewart, Roger Pisarnwongs, Bryan Kelly, James Flom
  • Publication number: 20150112368
    Abstract: A suture passer comprising: a hollow tube, said hollow tube comprising a distal end, a proximal end, and a lumen extending from said distal end to said proximal end; and a suture manipulation rod slidably received in said lumen of said hollow tube and selectively projectable out said distal end of said hollow tube, said suture manipulation rod comprising a distal end and a proximal end, said distal end of said suture manipulation rod being bifurcated into a first arm and a second arm, wherein said first arm includes a hook comprising a proximally oriented hooking surface and a return extending proximally of said hooking surface; wherein said hollow tube and said suture manipulation rod are sized so that said suture manipulation rod may capture a suture disposed adjacent to said distal end of said hollow tube and draw the suture into said lumen of said hollow tube, and further wherein, after a suture has been drawn into said lumen of said hollow tube, distal movement of said suture manipulation rod causes t
    Type: Application
    Filed: November 3, 2014
    Publication date: April 23, 2015
    Inventors: Daren Stewart, James Flom
  • Publication number: 20130041387
    Abstract: A suture passer comprising: a shaft having an axis; a first jaw mounted to the shaft in alignment with the axis, the first jaw being configured to releasably support a length of suture thereon; a second jaw movably mounted to the shaft; and a needle movably mounted to the shaft, the needle having a hook and being configured to reciprocate in alignment with the axis so that the hook can selectively pass by the second jaw and engage suture releasably supported on the first jaw; wherein the first jaw comprises a spring for selectively binding the suture to the first jaw, and further wherein the spring comprises a recess for receiving the suture therein.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 14, 2013
    Inventors: David Skinlo, Scott Heneveld, Thomas Weisel, Daren Stewart, Andrew Lantz, Roger Pisarnwongs
  • Publication number: 20080103411
    Abstract: A device and method of use for securing and coring of tumors within the body during a biopsy of the tumor, specifically breast tumors. An adhesion probe for securing the tumor is described. The probe secures the tumor by piercing the tumor and providing a coolant to the distal tip to cool the tip. The cooled tip adheres to the tumor. A coring instrument adapted for cutting a core sample of the tumor is described. The instrument is provided with a cannula that can cut a core sample of the tumor. The instrument is adapted for use with the probe with the probe fitting within the cannula. The instrument can be used in conjunction with the probe to secure and core a sample of the tumor for biopsy.
    Type: Application
    Filed: December 26, 2007
    Publication date: May 1, 2008
    Inventors: Kevin Van Bladel, Shigeru Tanaka, Daren Stewart
  • Publication number: 20080004479
    Abstract: Methods and apparatus are described for irradiating living tissue via a cavity or lumen, using an inflatable balloon applicator. In a preferred embodiment the applicator balloon has a balloon skin with x-ray contrast material in relatively low concentration, so that an outline of the balloon will appear sharply when imaged externally. In another preferred embodiment the balloon catheter has a drain for withdrawing liquids from the cavity, which may include channels or texture on the exterior of the balloon. Methods are described for using a switchable miniature x-ray tube, variable as to voltage and current, to achieve accuracy in an isodose profile.
    Type: Application
    Filed: June 18, 2007
    Publication date: January 3, 2008
    Inventors: Daren Stewart, Paul Lovoi, Thomas Rusch, Alex Lim, Darius Francescatti
  • Publication number: 20060173235
    Abstract: A vaginal brachytherapy applicator is versatile to different anatomies and more comfortable to the patient than prior applicators. An inflatable balloon on a shaft may be inelastic or elastic. In one embodiment the shaft is rotatable relative to the balloon for enabling a ring or band of dose delivery, for versatility in radiation placement. Alternatively, the source can be rotated and pulled back within a stationary shaft. An adjustment is provided for reducing the length of balloon that inflates, to accommodate different anatomies and positions. Although isotope radiation sources can be used in the applicator, an electronic source is preferred, and the system and method include procedures for using the applicator with an electronic source.
    Type: Application
    Filed: December 30, 2005
    Publication date: August 3, 2006
    Inventors: Alex Lim, Paul Lovoi, Heike Hausen, Daren Stewart
  • Publication number: 20050080313
    Abstract: An applicator for facilitating radiation treatment in a body cavity, particularly post resection, provides for superior wound closure management, with an integrated drain and a flexible main shaft that permits further treatments at intervals without disturbing the wound closure. The drain includes channels in the shaft, and the surface of an expandable balloon of the applicator may have features that help channel the flow of drain liquids toward the cavity entrance. Non-spherical, irregular geometries of balloons are achieved in several different ways. In some embodiments multiple balloons are included, either an inner and outer balloon or a series of balloons extending outwardly from the main shaft. Non-balloon applicators are also disclosed.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 14, 2005
    Inventors: Daren Stewart, Paul Lovoi, Thomas Rusch, Alex Lim, Darius Francescatti