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公开(公告)号:US20180243137A1
公开(公告)日:2018-08-30
申请号:US15900602
申请日:2018-02-20
Applicant: Novartis AG
Inventor: Chenguang Diao , Mark Harrison Farley , Alireza Mirsepassi , Ronald T. Smith
IPC: A61F9/008
CPC classification number: A61F9/00823 , A61B18/22 , A61B2018/2005 , A61B2018/2025 , A61B2018/2211 , A61B2018/2238 , A61B2018/2261 , A61B2018/2266 , A61B2018/2288 , A61F2009/00863 , G02B6/0008 , G02B6/04 , G02B6/262 , G02B6/3624 , G02B6/3636 , G02B6/3644
Abstract: Multi-fiber laser probes utilize relative motion of fibers and other laser probe elements to preserve small-gauge compatibility while providing for multi-spot beam deliver, or to provide for the selectively delivery of single-spot or multi-spot beam patterns. An example probe includes fibers having distal ends that are movable as a group onto a distal ramp element affixed to a distal end of a cannula, so that the distal ends of the fibers can be moved between a retracted position, in which the distal ends of the fibers are within the cannula or ramp element, and an extended position, in which distal ends of the fibers are guided by grooves or channels of the ramp so as to extend at least partially through external openings in the distal end of the laser probe and so as to be pointed angularly away from a longitudinal axis of the cannula.
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公开(公告)号:US20170252121A1
公开(公告)日:2017-09-07
申请号:US15061754
申请日:2016-03-04
Applicant: NOVARTIS AG
Inventor: Chenguang Diao , Alireza Mirsepassi , Ronald T. Smith , Michael J. Papac
CPC classification number: A61B90/30 , A61B3/0008 , A61B17/3415 , A61B17/3417 , A61B17/3421 , A61B2017/00526 , A61B2090/306 , A61B2090/309 , A61F9/007 , A61F9/00736 , B29C65/14 , B29C65/48 , B29L2031/7546 , B29L2031/7548
Abstract: An illuminated microsurgical surgical instrument that allows for illumination of the interior of a body cavity during a surgical procedure is provided herein. The surgical instrument may include an elongate tubular member having a distal end for insertion through tissue, the elongate tubular member having an inner diameter, an outer diameter, and a wall thickness. A longitudinal slot extending from the distal end of the elongate tubular member is formed in the elongate tubular member. The surgical instrument further may include an optical fiber extending within the longitudinal slot toward the distal end of the elongate tubular member. The optical fiber may be affixed within the longitudinal slot by an adhesive. The optical fiber may be positioned such that a distal tip thereof is protected from damage by a distal edge of the elongate tubular member during insertion of the instrument into the body cavity.
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公开(公告)号:US20170176660A1
公开(公告)日:2017-06-22
申请号:US14973939
申请日:2015-12-18
Applicant: Novartis AG
Inventor: Alireza Mirsepassi , Ronald T. Smith , Michael J. Papac , Chenguang Diao
CPC classification number: G02B6/0008 , A61B1/07 , A61B90/30 , A61B90/36 , A61B2090/306 , A61F9/00736 , A61F9/008 , G02B5/021 , G02B5/0242 , G02B5/0247 , G02B6/241 , G02B6/262
Abstract: An illumination fiber optics is provided that includes an optical fiber, configured to receive illumination light at a proximal end from a light source; and a light-scattering element, at a distal end of the optical fiber, configured to receive the illumination light from the optical fiber at a proximal end and to emit the illumination light at a distal end in a wide angle. The illumination fiber optics can be prepared by providing an optical fiber, configured to receive illumination light at a proximal end from a light source; and creating a light-scattering element at a distal end of the optical fiber, configured to receive the illumination light from the optical fiber at a proximal end and to emit the illumination light at a distal end in a wide angle.
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公开(公告)号:US11517392B2
公开(公告)日:2022-12-06
申请号:US16365182
申请日:2019-03-26
Applicant: Novartis AG
Inventor: Alireza Mirsepassi , Ronald T. Smith , Michael J. Papac , Chenguang Diao
IPC: G02B6/24 , A61B90/30 , G02B6/26 , A61B90/00 , A61F9/007 , G02B5/02 , F21V8/00 , A61B1/07 , A61B1/00 , A61B17/00
Abstract: A process of making a diverging-light fiber optics illumination delivery system includes providing a micro-post comprising a glass-ceramic light-scattering element that includes at least one of a ceramic, a glass ceramic, an immiscible glass, a porous glass, opal glass, amorphous glass, an aerated glass, and a nanostructured glass; and fusion-splicing the glass-ceramic micro-post to the optical fiber by pulling an arc between electrodes across a gap formed by the optical fiber and the glass-ceramic micro-post; maintaining the arc for a time sufficiently long to make facing surfaces of the optical fiber and the micro-post one of malleable and molten; and pushing and thereby fusing together the facing surfaces of the optical fiber and the micro-post. Some embodiments can include fusing the glass-ceramic micro-post to the optical fiber by applying a laser beam to heat up at least one of the facing surfaces of the optical fiber and the glass-ceramic micro-post.
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公开(公告)号:US20200218002A1
公开(公告)日:2020-07-09
申请号:US16821474
申请日:2020-03-17
Applicant: Novartis AG
Inventor: Alireza Mirsepassi , Ronald T. Smith , Michael J. Papac , Chenguang Diao
IPC: F21V8/00 , A61F9/008 , G02B6/24 , G02B6/26 , A61B90/00 , A61F9/007 , A61B90/30 , G02B5/02 , A61B1/07
Abstract: An illumination fiber optics is provided that includes an optical fiber, configured to receive illumination light at a proximal end from a light source; and a light-scattering element, at a distal end of the optical fiber, configured to receive the illumination light from the optical fiber at a proximal end and to emit the illumination light at a distal end in a wide angle. The illumination fiber optics can be prepared by providing an optical fiber, configured to receive illumination light at a proximal end from a light source; and creating a light-scattering element at a distal end of the optical fiber, configured to receive the illumination light from the optical fiber at a proximal end and to emit the illumination light at a distal end in a wide angle.
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公开(公告)号:US20190175408A1
公开(公告)日:2019-06-13
申请号:US16218243
申请日:2018-12-12
Applicant: Novartis AG
Inventor: Chenguang Diao , Christopher Cook , Alireza Mirsepassi
Abstract: Certain embodiments of the present disclosure provide a thermally robust laser probe assembly. The probe assembly comprises a cannula through which one or more optical fibers extend at least partially for transmitting laser light from a laser source to a target location. The probe assembly also comprises a lens housed in the cannula and a protective component at a distal end of the cannula, wherein the lens is positioned between the one or more optical fibers and the protective component, and wherein the distal end of the cannula is sealed at a sealing location of the probe assembly.
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公开(公告)号:US20190142544A1
公开(公告)日:2019-05-16
申请号:US16175962
申请日:2018-10-31
Applicant: Novartis AG
Inventor: Jochen Horn , Alireza Mirsepassi , Chenguang Diao , Mark Harrison Farley , Ronald T. Smith
Abstract: Multi-fiber laser probes utilize relative motion of fibers and other laser probe elements to preserve small-gauge compatibility while providing for multi-spot beam deliver, or to provide for the selectively delivery of single-spot or multi-spot beam patterns. An example probe includes fibers having distal ends that are movable as a group onto a distal ramp element affixed to a distal end of a cannula, so that the distal ends of the fibers can be moved between a retracted position, in which the distal ends of the fibers are within the cannula or ramp element, and an extended position, in which distal ends of the fibers are guided by grooves or channels of the ramp so as to extend at least partially through external openings in the distal end of the laser probe and so as to be pointed angularly away from a longitudinal axis of the cannula.
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公开(公告)号:US20180333304A1
公开(公告)日:2018-11-22
申请号:US15974427
申请日:2018-05-08
Applicant: Novartis AG
Inventor: Chenguang Diao , Mark Harrison Farley , Alireza Mirsepassi , Kambiz Parto , Dean Richardson , Ronald Smith
CPC classification number: A61F9/00823 , A61B18/22 , A61B2018/2211 , A61B2018/2266 , A61F2009/00863 , G02B27/1086
Abstract: An example laser probe comprises one or more fibers extending from a proximal end of the laser probe to at least near a distal end of the laser probe, where the proximal end of the laser probe is configured to be coupled to a laser source via an adapter interface, and a cannula having a distal end and surrounding the one or more fibers along at least a portion of the laser probe at or near the distal end of the laser probe. The laser probe further comprises one or more lens elements, where each lens element is fused to or formed directly on the distal end of a corresponding one of the one or more fibers. In some embodiments, the laser probe is a multi-fiber, multi-spot laser probe, e.g., comprising four or more fibers and four or more corresponding lens elements.
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公开(公告)号:US20180243136A1
公开(公告)日:2018-08-30
申请号:US15900534
申请日:2018-02-20
Applicant: Novartis AG
Inventor: Chenguang Diao , Mark Harrison Farley , Alireza Mirsepassi , Kambiz Parto , Ronald T. Smith
IPC: A61F9/008
CPC classification number: A61F9/00823 , A61B18/22 , A61B2018/2005 , A61B2018/2025 , A61B2018/2211 , A61B2018/2216 , A61B2018/2266 , A61B2018/2272 , A61F2009/00863 , G02B6/06 , G02B6/262
Abstract: An example multi-fiber, multi-spot laser probe comprises a plurality of fibers extending from a proximal end of the laser probe to at least near a distal end of the laser probe, where the proximal end of the laser probe is configured to be coupled to a laser source via an adapter interface, and a cannula having a distal end and surrounding the plurality of fibers along at least a portion of the laser probe at or near the distal end of the laser probe, where a distal end of each of the plurality of fibers is angle-polished so that the distal end of each fiber is angled relative to a longitudinal axis of the cannula and relative to a plane perpendicular to the longitudinal axis of the cannula. Additional embodiments employ lensed fibers, a distal window, ball lens, lens array, or faceted wedge.
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公开(公告)号:US20180132963A1
公开(公告)日:2018-05-17
申请号:US15805519
申请日:2017-11-07
Applicant: Novartis AG
Inventor: Chenguang Diao , Mark Harrison Farley , Brian William McDonell , Alireza Mirsepassi , Michael J. Papac , Kambiz Parto , Ronald T. Smith , Barry L. Wheatley
CPC classification number: A61B90/30 , A61B18/00 , A61B2017/00345 , A61B2090/306 , A61F9/00736 , A61F9/00763
Abstract: Provided herein is an illuminated microsurgical instrument system and an illuminated microsurgical instrument. In one implementation, the system includes a microsurgical instrument having a distally projecting tubular member arranged to perform a medical procedure at an interventional site. The tubular member has a distal tip and an outer surface, the outer surface having a flat surface formed therein. The instrument includes a sheath member surrounding a portion of the tubular member and extending toward the distal tip of the tubular member and an optical fiber extending along a length of the flat surface between the tubular member and the sheath member. The instrument may further include a slack chamber, collar structure, and fiber guard member to support and guide the optical fiber to the distal tip.
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