Patents by Inventor Siddharth Loganathan

Siddharth Loganathan 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: 20230346581
    Abstract: An implant delivery system comprises an elongate tubular member having a lumen, a tubular implant coaxially disposed within the lumen of the elongate tubular member, and a delivery assembly having a distal portion coaxially disposed within tubular implant. The delivery assembly comprises a delivery wire, an engaging bumper fixedly coupled to the delivery wire, a stopper bumper fixedly coupled to the delivery wire, and a floating element slidably coupled around the delivery wire and disposed between the bumpers, thereby limiting linear translation of the floating element therebetween. The floating element has an engaging portion configured to engage the engaging bumper when the delivery wire is axially translated relative to the elongate member in a first direction. The floating element is configured to radially expand outward to frictionally engage the implant when the engaging portion of the floating element engages the engaging bumper.
    Type: Application
    Filed: June 30, 2023
    Publication date: November 2, 2023
    Applicants: STRYKER CORPORATION, STRYKER EUROPEAN OPERATIONS HOLDINGS LLC
    Inventor: Siddharth Loganathan
  • Patent number: 11730618
    Abstract: An implant delivery system comprises an elongate tubular member having a lumen, a tubular implant coaxially disposed within the lumen of the elongate tubular member, and a delivery assembly having a distal portion coaxially disposed within tubular implant. The delivery assembly comprises a delivery wire, an engaging bumper fixedly coupled to the delivery wire, a stopper bumper fixedly coupled to the delivery wire, and a floating element slidably coupled around the delivery wire and disposed between the bumpers, thereby limiting linear translation of the floating element therebetween. The floating element has an engaging portion configured to engage the engaging bumper when the delivery wire is axially translated relative to the elongate member in a first direction. The floating element is configured to radially expand outward to frictionally engage the implant when the engaging portion of the floating element engages the engaging bumper.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: August 22, 2023
    Assignees: Stryker Corporation, Stryker European Holdings I, LLC
    Inventor: Siddharth Loganathan
  • Publication number: 20210361454
    Abstract: An implant delivery system comprises an elongate tubular member having a lumen, a tubular implant coaxially disposed within the lumen of the elongate tubular member, and a delivery assembly having a distal portion coaxially disposed within tubular implant. The delivery assembly comprises a delivery wire, an engaging bumper fixedly coupled to the delivery wire, a stopper bumper fixedly coupled to the delivery wire, and a floating element slidably coupled around the delivery wire and disposed between the bumpers, thereby limiting linear translation of the floating element therebetween. The floating element has an engaging portion configured to engage the engaging bumper when the delivery wire is axially translated relative to the elongate member in a first direction. The floating element is configured to radially expand outward to frictionally engage the implant when the engaging portion of the floating element engages the engaging bumper.
    Type: Application
    Filed: August 6, 2021
    Publication date: November 25, 2021
    Applicants: STRYKER CORPORATION, STRYKER EUROPEAN HOLDINGS I, LLC
    Inventor: Siddharth Loganathan
  • Patent number: 11083611
    Abstract: An implant delivery system comprises an elongate tubular member having a lumen, a tubular implant coaxially disposed within the lumen of the elongate tubular member, and a delivery assembly having a distal portion coaxially disposed within tubular implant. The delivery assembly comprises a delivery wire, an engaging bumper fixedly coupled to the delivery wire, a stopper bumper fixedly coupled to the delivery wire, and a floating element slidably coupled around the delivery wire and disposed between the bumpers, thereby limiting linear translation of the floating element therebetween. The floating element has an engaging portion configured to engage the engaging bumper when the delivery wire is axially translated relative to the elongate member in a first direction. The floating element is configured to radially expand outward to frictionally engage the implant when the engaging portion of the floating element engages the engaging bumper.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: August 10, 2021
    Assignee: Stryker Corporation
    Inventor: Siddharth Loganathan
  • Publication number: 20200170817
    Abstract: An implant delivery system comprises an elongate tubular member having a lumen, a tubular implant coaxially disposed within the lumen of the elongate tubular member, and a delivery assembly having a distal portion coaxially disposed within tubular implant. The delivery assembly comprises a delivery wire, an engaging bumper fixedly coupled to the delivery wire, a stopper bumper fixedly coupled to the delivery wire, and a floating element slidably coupled around the delivery wire and disposed between the bumpers, thereby limiting linear translation of the floating element therebetween. The floating element has an engaging portion configured to engage the engaging bumper when the delivery wire is axially translated relative to the elongate member in a first direction. The floating element is configured to radially expand outward to frictionally engage the implant when the engaging portion of the floating element engages the engaging bumper.
    Type: Application
    Filed: August 22, 2018
    Publication date: June 4, 2020
    Applicants: STRYKER CORPORATION, STRYKER EUROPEAN HOLDINGS I, LLC
    Inventor: Siddharth Loganathan
  • Patent number: 10617436
    Abstract: An embolectomy device includes a tubular body having a plurality of interconnected primary struts that define a plurality of openings when the tubular body is in a radially expanded deployed configuration, and a plurality of secondary struts connected to the primary struts that move from being aligned with the primary struts to a non-aligned configuration in which the secondary struts extend at least partially into and/or across the openings, to thereby ensnare or encapsulate a vascular obstruction within the primary and secondary struts after the tubular body is deployed proximate the obstruction and allowed to expand into or through the obstruction.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: April 14, 2020
    Assignee: Stryker, Inc.
    Inventor: Siddharth Loganathan
  • Patent number: 10285830
    Abstract: A method of manufacturing a tubular medical implant, such as a stent, includes introducing a liquid polymer material into an axial lumen of an elongate metal tube, the metal tube having an inner wall defining the lumen; allowing the polymer material to solidify within the metal tube lumen, the solidified polymer forming a high friction surface in contact with the inner wall of the metal tube; securing the metal tube, including the solidified polymer material therein, to a collet of a laser etching system; and laser etching a predetermined pattern of openings in the metal tube.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: May 14, 2019
    Assignees: STRYKER CORPORATION, STRYKER EUROPEAN HOLDINGS I, LLC
    Inventors: Siddharth Loganathan, Stephen Porter
  • Publication number: 20180064456
    Abstract: An embolectomy device includes a tubular body having a plurality of interconnected primary struts that define a plurality of openings when the tubular body is in a radially expanded deployed configuration, and a plurality of secondary struts connected to the primary struts that move from being aligned with the primary struts to a non-aligned configuration in which the secondary struts extend at least partially into and/or across the openings, to thereby ensnare or encapsulate a vascular obstruction within the primary and secondary struts after the tubular body is deployed proximate the obstruction and allowed to expand into or through the obstruction.
    Type: Application
    Filed: November 9, 2017
    Publication date: March 8, 2018
    Inventor: Siddharth Loganathan
  • Publication number: 20170156733
    Abstract: Braid-balls suitable for aneurysm occlusion and/or parent vessel occlusion/sacrifice (e.g., in treating neurovascular defects) are disclosed. Especially for aneurysm treatment, but also for either one of the aforementioned treatments, the form of the ball is very important. In particular, the density of the device is paramount in applications where braid itself is intended to moderate or stop blood flow—allowing thrombosis within a volume formed by the ball.
    Type: Application
    Filed: January 25, 2017
    Publication date: June 8, 2017
    Inventors: Frank P. Becking, Arturo S. Rosqueta, Siddharth Loganathan
  • Patent number: 9585669
    Abstract: Braid-balls suitable for aneurysm occlusion and/or parent vessel occlusion/sacrifice (e.g., in treating neurovascular defects) are disclosed. Especially for aneurysm treatment, but also for either one of the aforementioned treatments, the form of the ball is very important. In particular, the density of the device is paramount in applications where braid itself is intended to moderate or stop blood flow—allowing thrombosis within a volume formed by the ball.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: March 7, 2017
    Assignee: Covidien LP
    Inventors: Frank P. Becking, Arturo S. Rosqueta, Siddharth Loganathan
  • Publication number: 20160302808
    Abstract: An embolectomy device includes a tubular body having a plurality of interconnected primary struts that define a plurality of openings when the tubular body is in a radially expanded deployed configuration, and a plurality of secondary struts connected to the primary struts that move from being aligned with the primary struts to a non-aligned configuration in which the secondary struts extend at least partially into and/or across the openings, to thereby ensnare or encapsulate a vascular obstruction within the primary and secondary struts after the tubular body is deployed proximate the obstruction and allowed to expand into or through the obstruction.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 20, 2016
    Inventors: Siddharth Loganathan, Murtagh M. Murphy
  • Publication number: 20160158036
    Abstract: A method of manufacturing a tubular medical implant, such as a stent, includes introducing a liquid polymer material into an axial lumen of an elongate metal tube, the metal tube having an inner wall defining the lumen; allowing the polymer material to solidify within the metal tube lumen, the solidified polymer forming a high friction surface in contact with the inner wall of the metal tube; securing the metal tube, including the solidified polymer material therein, to a collet of a laser etching system; and laser etching a predetermined pattern of openings in the metal tube.
    Type: Application
    Filed: November 23, 2015
    Publication date: June 9, 2016
    Inventors: Siddharth Loganathan, Stephen Porter
  • Patent number: 9320630
    Abstract: A medical assembly for delivering an implant comprising a tubular resilient implant defining an inner lumen, the implant comprising a plurality of engaging members extending proximally an end thereof, the implant having a delivery configuration, and a released configuration, and a delivery assembly for delivering the implant, the delivery assembly comprising an outer tubular member extending through the inner lumen of the implant, the outer tubular member having a plurality of slots receiving therethrough the engaging members, with the implant being disposed in its delivery configuration on an outer surface of the outer tubular member, an inner tubular member coaxially disposed within the outer tubular member and movable relative to the outer tubular member, the inner tubular member having a first axial position that restrains the engaging members, and a second axial position to thereby release the implant from the delivery assembly.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: April 26, 2016
    Assignees: STRYKER CORPORATION, STRYKER EUROPEAN HOLDINGS I, LLC
    Inventor: Siddharth Loganathan
  • Publication number: 20150305826
    Abstract: An implantable medical device includes a structural element having a core layer or region of radiolucent material; a layer of radiopaque material overlaying the core layer or region of radiolucent material; and an outer layer of radiolucent material overlaying the layer of radiopaque material, the outer layer of radiolucent material having a same or greater hardness as the layer of radiopaque material.
    Type: Application
    Filed: April 27, 2015
    Publication date: October 29, 2015
    Inventors: Siddharth Loganathan, Brent C. Gerberding
  • Patent number: 9095342
    Abstract: Embolic implants and methods of manufacture are disclosed. The implants may be used for occluding blood flow at endovascular sites. One use is in intracranial aneurysm emolization/occlusion and another in parent vessel occlusion (PVO) or sacrifice. Various features provide for improved use (e.g., regarding delivery, recapture, visualization and/or occlusion) and manufacturability.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: August 4, 2015
    Assignee: Covidien LP
    Inventors: Frank P. Becking, Nicholas C. deBeer, Siddharth Loganathan
  • Publication number: 20150182359
    Abstract: A stent having a compressed delivery configuration, an expanded configuration for implantation in a body lumen, a central body portion having a first plurality of struts, and an end portion having a second plurality of struts, wherein the first plurality of struts defines a central body pattern having a first axial stiffness, and the second plurality of struts defines an open cell configuration having a second axial stiffness greater than the first axial stiffness, the second axial stiffness sufficient to resist more than about 5% radial expansion of the end portion from the delivery configuration so long as at least about 20% of a length of the first end portion is radially constrained in the delivery configuration.
    Type: Application
    Filed: December 22, 2014
    Publication date: July 2, 2015
    Inventors: Brent C. Gerberding, Siddharth Loganathan
  • Publication number: 20140180383
    Abstract: A medical assembly for delivering an implant comprising a tubular resilient implant defining an inner lumen, the implant comprising a plurality of engaging members extending proximally an end thereof, the implant having a delivery configuration, and a released configuration, and a delivery assembly for delivering the implant, the delivery assembly comprising an outer tubular member extending through the inner lumen of the implant, the outer tubular member having a plurality of slots receiving therethrough the engaging members, with the implant being disposed in its delivery configuration on an outer surface of the outer tubular member, an inner tubular member coaxially disposed within the outer tubular member and movable relative to the outer tubular member, the inner tubular member having a first axial position that restrains the engaging members, and a second axial position to thereby release the implant from the delivery assembly.
    Type: Application
    Filed: December 9, 2013
    Publication date: June 26, 2014
    Applicants: STRYKER NV OPERATIONS LIMITED, STRYKER CORPORATION
    Inventor: Siddharth Loganathan
  • Publication number: 20130123830
    Abstract: Embolic implants, delivery systems and methods of manufacture and delivery are disclosed. The devices can be used for aneurysm treatment and/or parent vessel occlusion. Implant designs offer low profile compressibility for delivery to neurovasculature, while maintaining other necessary features such as density for occlusion purposes and desirable radial strength characteristics.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 16, 2013
    Applicant: Nfocus Neuromedical, Inc.
    Inventors: Frank P. Becking, Arturo S. Rosqueta, Siddharth Loganathan
  • Publication number: 20120330341
    Abstract: Embolic implants, methods of manufacture and delivery are disclosed. The subject implants are especially suitable for use is stent-caged aneurysm treatment.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 27, 2012
    Inventors: Frank P. Becking, Siddharth Loganathan, Chi Vu, Karl S. Halden, Arturo S. Rosqueta
  • Publication number: 20120316598
    Abstract: Braid-balls suitable for aneurysm occlusion and/or parent vessel occlusion/sacrifice (e.g., in treating neurovascular defects) are disclosed. Especially for aneurysm treatment, but also for either one of the aforementioned treatments, the form of the ball is very important. In particular, the density of the device is paramount in applications where braid itself is intended to moderate or stop blood flow—allowing thrombosis within a volume formed by the ball.
    Type: Application
    Filed: May 11, 2012
    Publication date: December 13, 2012
    Inventors: Frank P. Becking, Arturo S. Rosqueta, Siddharth Loganathan