Patents by Inventor Sunil K. Dasara
Sunil K. Dasara 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: 20150005571Abstract: An apical ring for coupling a conduit of a ventricular assist device to a heart has an annular disk with a central aperture for receiving the conduit. A collar is axially aligned with the central aperture and has a cylindrical shape interrupted by a gap between first and second ends of the collar. The collar has a fixed section joined to the annular disk and has a cantilever section extending from the fixed section to the first end of the collar. A tightener selectively drives the first end toward the second end to close the gap in order to retain the conduit within the collar. The cantilever section includes a relief slot that is expandable for extending a circumferential length of the cantilever section in response to interacting with the conduit when the gap is closed.Type: ApplicationFiled: September 12, 2014Publication date: January 1, 2015Inventors: Brian D. Jeffery, Sunil K. Dasara
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Patent number: 8882744Abstract: An outflow conduit for a cardiac assist pump has a connector at one end comprised of a main sleeve configured to mate with a pump outlet port. A plurality of prongs extend from the sleeve. Each prong has a distal end with a claw and is bendable so that its respective claw expands over a lip and enters the groove of the outlet port. A lock nut is movable between a retracted position and a locking position. In the retracted position, a soft interconnect is obtained. In the locking position, the claws are prevented from escaping over the lip and a hard interconnect is obtained.Type: GrantFiled: February 27, 2012Date of Patent: November 11, 2014Assignee: Thoratec CorporationInventors: Christopher P. Dormanen, Sunil K. Dasara, Takeshi Tsubouchi
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Patent number: 8840538Abstract: An apical ring for coupling a conduit of a ventricular assist device to a heart has an annular disk with a central aperture for receiving the conduit. A collar is axially aligned with the central aperture and has a cylindrical shape interrupted by a gap between first and second ends of the collar. The collar has a fixed section joined to the annular disk and has a cantilever section extending from the fixed section to the first end of the collar. A tightener selectively drives the first end toward the second end to close the gap in order to retain the conduit within the collar. The cantilever section includes a relief slot that is expandable for extending a circumferential length of the cantilever section in response to interacting with the conduit when the gap is closed.Type: GrantFiled: October 8, 2013Date of Patent: September 23, 2014Assignee: Thoratec CorporationInventors: Brian D. Jeffery, Sunil K. Dasara
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Publication number: 20140155682Abstract: An apical ring for coupling a conduit of a ventricular assist device to a heart has an annular disk with a central aperture for receiving the conduit. A collar is axially aligned with the central aperture and has a cylindrical shape interrupted by a gap between first and second ends of the collar. The collar has a fixed section joined to the annular disk and has a cantilever section extending from the fixed section to the first end of the collar. A tightener selectively drives the first end toward the second end to close the gap in order to retain the conduit within the collar. The cantilever section includes a relief slot that is expandable for extending a circumferential length of the cantilever section in response to interacting with the conduit when the gap is closed.Type: ApplicationFiled: October 8, 2013Publication date: June 5, 2014Applicant: Thoratec CorporationInventors: Brian D. Jeffery, Sunil K. Dasara
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Patent number: 8579790Abstract: An apical ring for coupling a conduit of a ventricular assist device to a heart has an annular disk with a central aperture for receiving the conduit. A collar is axially aligned with the central aperture and has a cylindrical shape interrupted by a gap between first and second ends of the collar. The collar has a fixed section joined to the annular disk and has a cantilever section extending from the fixed section to the first end of the collar. A tightener selectively drives the first end toward the second end to close the gap in order to retain the conduit within the collar. The cantilever section includes a relief slot that is expandable for extending a circumferential length of the cantilever section in response to interacting with the conduit when the gap is closed.Type: GrantFiled: January 5, 2012Date of Patent: November 12, 2013Assignee: Thoratec CorporationInventors: Brian D. Jeffery, Sunil K. Dasara
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Publication number: 20130225909Abstract: An outflow conduit for a cardiac assist pump has a connector at one end comprised of a main sleeve configured to mate with a pump outlet port. A plurality of prongs extend from the sleeve. Each prong has a distal end with a claw and is bendable so that its respective claw expands over a lip and enters the groove of the outlet port. A lock nut is movable between a retracted position and a locking position. In the retracted position, a soft interconnect is obtained. In the locking position, the claws are prevented from escaping over the lip and a hard interconnect is obtained.Type: ApplicationFiled: February 27, 2012Publication date: August 29, 2013Applicant: TERUMO KABUSHIKI KAISHAInventors: Christopher P. Dormanen, Sunil K. Dasara, Takeshi Tsubouchi
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Publication number: 20130178694Abstract: An apical ring for coupling a conduit of a ventricular assist device to a heart has an annular disk with a central aperture for receiving the conduit. A collar is axially aligned with the central aperture and has a cylindrical shape interrupted by a gap between first and second ends of the collar. The collar has a fixed section joined to the annular disk and has a cantilever section extending from the fixed section to the first end of the collar. A tightener selectively drives the first end toward the second end to close the gap in order to retain the conduit within the collar. The cantilever section includes a relief slot that is expandable for extending a circumferential length of the cantilever section in response to interacting with the conduit when the gap is closed.Type: ApplicationFiled: January 5, 2012Publication date: July 11, 2013Applicant: TERUMO KABUSHIKI KAISHAInventors: Brian D. Jeffery, Sunil K. Dasara
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Publication number: 20100181220Abstract: A shower bag is provided for a medical device system having an implanted portion, an extracorporeal portion, and a cable extending between the implanted portion and the extracorporeal portion, wherein the extracorporeal portion is mounted in a carrying case wearable by the patient. A water-resistant pouch of the shower bag has an interior cavity extending between a top end and a bottom end, front and back exterior surfaces extending continuously over the top end, and an opening for inserting the carrying case into the interior cavity. An internal fastener suspends the carrying case within the interior cavity in a manner to permit the extracorporeal portion to remain in the carrying case. A carrying strap has first and second ends attached to the pouch proximate to the top end. A re-sealable fastener is mounted to the pouch disposed alongside an edge of the opening for closing the opening except for a cable passage that is proximate to the bottom end.Type: ApplicationFiled: January 22, 2009Publication date: July 22, 2010Applicant: TERUMO KABUSHIKI KAISHAInventor: Sunil K. Dasara