Patents by Inventor Alexander Drofa
Alexander Drofa 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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Patent number: 11872146Abstract: The disclosure provides example apparatus and methods. One example apparatus includes a first woven stent having a curved form in an expanded state. In the expanded state, at least a first portion of the first woven stent has a weave pattern arranged along an outer curvature of the first woven stent that is different than a weave pattern arranged along an inner curvature of the first woven stent. And the first woven stent is biased toward the curved form due to shape memory.Type: GrantFiled: March 22, 2019Date of Patent: January 16, 2024Inventors: Thomas Haldis, Alexander Drofa
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Patent number: 11801363Abstract: The present disclosure provides a catheter system and methods for use that includes (a) a first catheter having a first end and a second end, where the first catheter has a first diameter, (b) a second catheter having a first end and a second end, where the second catheter has a second diameter that is less than the first diameter of the first catheter, and where the second catheter is positioned at least partially within a lumen of the first catheter and is moveable relative to the first catheter, and (c) a wire having a first end and a second end, where the first end of the wire is coupled to the second catheter.Type: GrantFiled: May 5, 2021Date of Patent: October 31, 2023Assignee: Sanford HealthInventors: Thomas Haldis, Alexander Drofa
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Publication number: 20230001140Abstract: The present disclosure provides a catheter (100) including a first end (102), a second end (104), and a lumen (106) extending from the first end to the second end. The catheter has a first portion (108) arranged at the first end, a second portion (110) arranged adjacent to the first portion, and a third portion (112) arranged adjacent to the second portion. The first portion of the catheter has a first cut pattern in an exterior surface of the catheter, and the second portion of the catheter has a second cut pattern in the exterior surface of the catheter that is different from the first cut pattern. The third portion of the catheter has a third cut pattern in the exterior surface of the catheter that is different from the first cut pattern and the second cut pattern.Type: ApplicationFiled: December 11, 2020Publication date: January 5, 2023Inventors: Thomas Haldis, Alexander Drofa
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Patent number: 11439792Abstract: The present disclosure provides a catheter comprising: (a) a first tubular structure defining a first lumen, the first tubular structure having a first end and a second end, wherein the first end of the first tubular structure comprises a first opening, and wherein the second end of the first tubular structure comprises a second opening, (b) a second tubular structure defining a second lumen, the second tubular structure having a first end and a second end, wherein the second end of the second tubular structure comprises a third opening, and (c) a fourth opening positioned in a sidewall of the second tubular structure between the first end of the second tubular structure and the second end of the second tubular structure, wherein a first portion of the first tubular structure extends beyond the fourth opening, and wherein the second tubular structure is positioned adjacent to a second portion of the first tubular structure.Type: GrantFiled: April 4, 2018Date of Patent: September 13, 2022Assignee: Sanford HealthInventors: Thomas Haldis, Alexander Drofa
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Publication number: 20210252252Abstract: The present disclosure provides a catheter system and methods for use that includes (a) a first catheter having a first end and a second end, where the first catheter has a first diameter, (b) a second catheter having a first end and a second end, where the second catheter has a second diameter that is less than the first diameter of the first catheter, and where the second catheter is positioned at least partially within a lumen of the first catheter and is moveable relative to the first catheter, and (c) a wire having a first end and a second end, where the first end of the wire is coupled to the second catheter.Type: ApplicationFiled: May 5, 2021Publication date: August 19, 2021Inventors: Thomas Haldis, Alexander Drofa
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Patent number: 11027093Abstract: The present disclosure provides a catheter system and methods for use that includes (a) a first catheter having a first end and a second end, where the first catheter has a first diameter, (b) a second catheter having a first end and a second end, where the second catheter has a second diameter that is less than the first diameter of the first catheter, and where the second catheter is positioned at least partially within a lumen of the first catheter and is moveable relative to the first catheter, and (c) a wire having a first end and a second end, where the first end of the wire is coupled to the second catheter.Type: GrantFiled: December 8, 2017Date of Patent: June 8, 2021Assignee: Sanford HealthInventors: Thomas Haldis, Alexander Drofa
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Patent number: 11027097Abstract: The present disclosure provides a catheter including a first tubular structure defining a first lumen, the first tubular structure having a first end and a second end. The catheter may also include a second tubular structure defining a second lumen, the second tubular structure having a first end and a second end. The catheter may also include an aperture between the first tubular structure and the second tubular structure. The aperture is located at the first end of the second tubular structure. A first portion of the first tubular structure extends beyond the aperture, and the second tubular structure is positioned adjacent to a second portion of the first tubular structure.Type: GrantFiled: January 13, 2018Date of Patent: June 8, 2021Assignee: Sanford HealthInventors: Thomas Haldis, Alexander Drofa
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Publication number: 20210121280Abstract: Apparatus, systems and methods for use thereof are disclosed. An example apparatus includes a filter having an expandable frame and a semipermeable membrane coupled to the expandable frame. The expandable frame has a cone-shape in an expanded position. An apex of the expandable frame is arranged at the filter's first end. The expandable frame has a plurality of polygonal supports coupled together at the apex and that are radially biased outward such that in the expanded position the polygonal supports are spaced apart at a second end of the filter with the semipermeable membrane extending therebetween. The semipermeable membrane covers an area defined by the polygonal supports. A plurality of struts each have a first and second end, and the first end of each of the struts is coupled to a second end of the expandable frame. A stent is coupled to each of the second ends of the struts.Type: ApplicationFiled: April 16, 2018Publication date: April 29, 2021Inventors: Thomas HALDIS, Alexander DROFA
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Publication number: 20210007837Abstract: The disclosure provides example apparatus and methods. One example apparatus includes a first woven stent having a curved form in an expanded state. In the expanded state, at least a first portion of the first woven stent has a weave pattern arranged along an outer curvature of the first woven stent that is different than a weave pattern arranged along an inner curvature of the first woven stent. And the first woven stent is biased toward the curved form due to shape memory.Type: ApplicationFiled: March 22, 2019Publication date: January 14, 2021Inventors: Thomas Haldis, Alexander Drofa
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Publication number: 20180289926Abstract: The present disclosure provides a catheter comprising: (a) a first tubular structure defining a first lumen, the first tubular structure having a first end and a second end, wherein the first end of the first tubular structure comprises a first opening, and wherein the second end of the first tubular structure comprises a second opening, (b) a second tubular structure defining a second lumen, the second tubular structure having a first end and a second end, wherein the second end of the second tubular structure comprises a third opening, and (c) a fourth opening positioned in a sidewall of the second tubular structure between the first end of the second tubular structure and the second end of the second tubular structure, wherein a first portion of the first tubular structure extends beyond the fourth opening, and wherein the second tubular structure is positioned adjacent to a second portion of the first tubular structure.Type: ApplicationFiled: April 4, 2018Publication date: October 11, 2018Inventors: Thomas Haldis, Alexander Drofa
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Publication number: 20180200484Abstract: The present disclosure provides a catheter including a first tubular structure defining a first lumen, the first tubular structure having a first end and a second end. The catheter may also include a second tubular structure defining a second lumen, the second tubular structure having a first end and a second end. The catheter may also include an aperture between the first tubular structure and the second tubular structure. The aperture is located at the first end of the second tubular structure. A first portion of the first tubular structure extends beyond the aperture, and the second tubular structure is positioned adjacent to a second portion of the first tubular structure.Type: ApplicationFiled: January 13, 2018Publication date: July 19, 2018Inventors: Thomas Haldis, Alexander Drofa
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Publication number: 20180161541Abstract: The present disclosure provides a catheter system and methods for use that includes (a) a first catheter having a first end and a second end, where the first catheter has a first diameter, (b) a second catheter having a first end and a second end, where the second catheter has a second diameter that is less than the first diameter of the first catheter, and where the second catheter is positioned at least partially within a lumen of the first catheter and is moveable relative to the first catheter, and (c) a wire having a first end and a second end, where the first end of the wire is coupled to the second catheter.Type: ApplicationFiled: December 8, 2017Publication date: June 14, 2018Inventors: Thomas Haldis, Alexander Drofa