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).
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Publication number: 20230346581Abstract: 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: ApplicationFiled: June 30, 2023Publication date: November 2, 2023Applicants: STRYKER CORPORATION, STRYKER EUROPEAN OPERATIONS HOLDINGS LLCInventor: Siddharth Loganathan
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Patent number: 11730618Abstract: 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: GrantFiled: August 6, 2021Date of Patent: August 22, 2023Assignees: Stryker Corporation, Stryker European Holdings I, LLCInventor: Siddharth Loganathan
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Publication number: 20210361454Abstract: 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: ApplicationFiled: August 6, 2021Publication date: November 25, 2021Applicants: STRYKER CORPORATION, STRYKER EUROPEAN HOLDINGS I, LLCInventor: Siddharth Loganathan
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Patent number: 11083611Abstract: 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: GrantFiled: August 22, 2018Date of Patent: August 10, 2021Assignee: Stryker CorporationInventor: Siddharth Loganathan
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Publication number: 20200170817Abstract: 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: ApplicationFiled: August 22, 2018Publication date: June 4, 2020Applicants: STRYKER CORPORATION, STRYKER EUROPEAN HOLDINGS I, LLCInventor: Siddharth Loganathan
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Patent number: 10617436Abstract: 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: GrantFiled: November 9, 2017Date of Patent: April 14, 2020Assignee: Stryker, Inc.Inventor: Siddharth Loganathan
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Patent number: 10285830Abstract: 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: GrantFiled: November 23, 2015Date of Patent: May 14, 2019Assignees: STRYKER CORPORATION, STRYKER EUROPEAN HOLDINGS I, LLCInventors: Siddharth Loganathan, Stephen Porter
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Publication number: 20180064456Abstract: 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: ApplicationFiled: November 9, 2017Publication date: March 8, 2018Inventor: Siddharth Loganathan
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Publication number: 20170156733Abstract: 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: ApplicationFiled: January 25, 2017Publication date: June 8, 2017Inventors: Frank P. Becking, Arturo S. Rosqueta, Siddharth Loganathan
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Patent number: 9585669Abstract: 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: GrantFiled: May 11, 2012Date of Patent: March 7, 2017Assignee: Covidien LPInventors: Frank P. Becking, Arturo S. Rosqueta, Siddharth Loganathan
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Publication number: 20160302808Abstract: 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: ApplicationFiled: April 13, 2016Publication date: October 20, 2016Inventors: Siddharth Loganathan, Murtagh M. Murphy
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Publication number: 20160158036Abstract: 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: ApplicationFiled: November 23, 2015Publication date: June 9, 2016Inventors: Siddharth Loganathan, Stephen Porter
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Patent number: 9320630Abstract: 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: GrantFiled: December 9, 2013Date of Patent: April 26, 2016Assignees: STRYKER CORPORATION, STRYKER EUROPEAN HOLDINGS I, LLCInventor: Siddharth Loganathan
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Publication number: 20150305826Abstract: 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: ApplicationFiled: April 27, 2015Publication date: October 29, 2015Inventors: Siddharth Loganathan, Brent C. Gerberding
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Patent number: 9095342Abstract: 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: GrantFiled: November 9, 2010Date of Patent: August 4, 2015Assignee: Covidien LPInventors: Frank P. Becking, Nicholas C. deBeer, Siddharth Loganathan
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Publication number: 20150182359Abstract: 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: ApplicationFiled: December 22, 2014Publication date: July 2, 2015Inventors: Brent C. Gerberding, Siddharth Loganathan
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Publication number: 20140180383Abstract: 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: ApplicationFiled: December 9, 2013Publication date: June 26, 2014Applicants: STRYKER NV OPERATIONS LIMITED, STRYKER CORPORATIONInventor: Siddharth Loganathan
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Publication number: 20130123830Abstract: 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: ApplicationFiled: October 30, 2012Publication date: May 16, 2013Applicant: Nfocus Neuromedical, Inc.Inventors: Frank P. Becking, Arturo S. Rosqueta, Siddharth Loganathan
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Publication number: 20120330341Abstract: Embolic implants, methods of manufacture and delivery are disclosed. The subject implants are especially suitable for use is stent-caged aneurysm treatment.Type: ApplicationFiled: June 22, 2011Publication date: December 27, 2012Inventors: Frank P. Becking, Siddharth Loganathan, Chi Vu, Karl S. Halden, Arturo S. Rosqueta
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Publication number: 20120316598Abstract: 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: ApplicationFiled: May 11, 2012Publication date: December 13, 2012Inventors: Frank P. Becking, Arturo S. Rosqueta, Siddharth Loganathan