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公开(公告)号：US20240108210A1
公开(公告)日：2024-04-04
申请号：US17937124
申请日：2022-09-30
Applicant: CANON U.S.A., INC.
Inventor： Mark Alan Hamm
CPC classification number: A61B1/3137 , A61B1/00096 , A61B1/00154 , A61B1/07 , A61B5/6851 , A61M2025/0042
Abstract: An imaging guidewire comprises a first hypotube assembly that forms a guidewire body comprised of a first hypotube, a window attached to the first hypotube, and a flexible tip attached to the window. A second hypotube assembly forms an imaging core comprised of a second hypotube, one or more optical fibers arranged along an inner surface of the second hypotube, and a proximal connector attached to a proximal end of the second hypotube. The proximal connector is configured to connect the imaging core to a patient interface unit, wherein the second hypotube is nested inside the first hypotube, such that to acquire an image of a vessel region, the second hypotube is pulled back and pseudo rotated, or only pulled back, with respect to the first hypotube, while the one or more core optical fibers scan the vessel region with light of one or more wavelengths transmitted through the window.
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公开(公告)号：US20190254506A1
公开(公告)日：2019-08-22
申请号：US16270304
申请日：2019-02-07
Applicant: CANON U.S.A., INC.
Inventor： Mark Alan Hamm , Albert Harold Dunfee , Badr Elmaanaoui
Abstract: An apparatus includes an elongate member having proximal and distal portions; a rotatable drive cable disposed within the elongate member, the drive cable being connectable to a mechanism to which torque can be applied; and a control assembly mechanically coupled to the drive cable, and configured to disengage the mechanism from the drive cable when the applied torque exceeds a predetermined level, wherein disengagement of the mechanism from the drive cable causes rotation of the drive cable to stop or withdrawal of the drive cable.
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公开(公告)号：US10952702B2
公开(公告)日：2021-03-23
申请号：US15628093
申请日：2017-06-20
Applicant: Canon U.S.A. Inc.
Inventor： Mark Alan Hamm , Bin Wu , Albert Dunfee , Badr Elmaanaoui
Abstract: Exemplary probes including longitudinal marker elements arranged parallel to the probe axis are provided for reducing or eliminating non-uniform rotational distortions (NURD) in imaging systems. Additional ring marker elements may also be provided to reduce or eliminate non-uniform linear distortion (NULD). These probes, as well as systems and methods of use provide for images having better image quality and reduced NURD.
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公开(公告)号：US20190313975A1
公开(公告)日：2019-10-17
申请号：US15955574
申请日：2018-04-17
Applicant: Canon U.S.A. Inc.
Inventor： Albert Harold Dunfee , Seiji Takeuchi , Badr Elmaanaoui , Mark Alan Hamm
Abstract: An imaging catheter assembly comprising a catheter comprising: a proximal end; a distal end; a tubular body extending from the proximal end to the distal end; and an imaging element within the tubular body; a sheath comprising: a proximal end; a distal end; and a tubular body extending from the proximal end to the distal end, the tubular body having an inner surface, wherein the inner surface of the tubular body of the sheath at least partially defines a conduit for conveying a fluid to the distal end of the sheath, and wherein the sheath is movable such that the distal end of the sheath is positionable relative to the distal end of the catheter.
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公开(公告)号：US12263314B2
公开(公告)日：2025-04-01
申请号：US16817313
申请日：2020-03-12
Applicant: Canon U.S.A., Inc.
Inventor： Mark Alan Hamm , Badr Elmaanaoui , Albert Harold Dunfee , Kenneth Cooper Lippencott , Jeffrey Yutien Chen
Abstract: A catheter, comprising: a drive cable having cylindrical opening extending from a proximal end to a distal end along a longitudinal axis thereof; an imaging probe having an optical fiber arranged inside the drive cable and a distal optics assembly fixedly attached to the drive cable at the distal end thereof; a first radiopaque marker arranged at a distal end of the drive cable at a position distal and parallel to the distal optics assembly; and a second radiopaque marker arranged at a predetermined distance from the distal end of the drive cable at a position proximal to the distal optics assembly. The second radiopaque marker is arranged concentric or coaxially to the longitudinal axis in a space between the longitudinal axis and an outer surface of the drive cable.
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Patent Agency Ranking
公开(公告)号：USD1006988S1
公开(公告)日：2023-12-05
申请号：US29747362
申请日：2020-08-21
Applicant: Canon U.S.A., Inc.
Designer： Mark Alan Hamm , Zachary Hastings , Jacquelyn Nicole Phelps
Abstract: FIG. 1 is a perspective view of the front, right and back sides of a catheter handle;
FIG. 2 is a top view of a catheter handle;
FIG. 3 is a bottom view of a catheter handle;
FIG. 4 is a right side view of a catheter handle;
FIG. 5 is a left side view of the a catheter handle;
FIG. 6 is a front side view of a catheter handle; and,
FIG. 7 is a back side view of a catheter handle.
The portions of a catheter handle shown in broken lines form no part of the claimed design.-
公开(公告)号：US20200297970A1
公开(公告)日：2020-09-24
申请号：US16817313
申请日：2020-03-12
Applicant: Canon U.S.A., Inc.
Inventor： Mark Alan Hamm , Badr Elmaanaoui , Albert Harold Dunfee , Kenneth Cooper Lippencott , Jeffrey Yutien Chen
Abstract: A catheter, comprising: a drive cable having cylindrical opening extending from a proximal end to a distal end along a longitudinal axis thereof; an imaging probe having an optical fiber arranged inside the drive cable and a distal optics assembly fixedly attached to the drive cable at the distal end thereof; a first radiopaque marker arranged at a distal end of the drive cable at a position distal and parallel to the distal optics assembly; and a second radiopaque marker arranged at a predetermined distance from the distal end of the drive cable at a position proximal to the distal optics assembly. The second radiopaque marker is arranged concentric or coaxially to the longitudinal axis in a space between the longitudinal axis and an outer surface of the drive cable.
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公开(公告)号：US20250010038A1
公开(公告)日：2025-01-09
申请号：US18891664
申请日：2024-09-20
Applicant: CANON U.S.A., INC.
Inventor： Mark Alan Hamm , Albert Harold Dunfee
Abstract: A method of assembling a rapid-exchange catheter, includes providing a tubular sheath that is flexible and includes a proximal section, a mid-shaft section and a distal section, the tubular shaft defining a first lumen that extends through the proximal section, the mid-shaft section, and the distal section; providing a rapid exchange segment defining a second lumen that extends from an entry port to an exit port thereof, and having a stub portion formed at an angle with respect to the second lumen; and coupling the tubular sheath and the rapid exchange segment such that the distal section of the tubular sheath and the stub portion of the rapid exchange segment are mated to each other in a lengthwise direction at an angle such that a longitudinal axis of the first lumen and a longitudinal axis of the second lumen are laterally offset from each other by an offset distance.
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公开(公告)号：US20230363652A1
公开(公告)日：2023-11-16
申请号：US17744121
申请日：2022-05-13
Applicant: CANON U.S.A., INC.
Inventor： Lampros Athanasiou , Mark Alan Hamm , Christopher Douglas Brushett
CPC classification number: A61B5/0215 , A61B1/00135 , A61B1/005 , A61B1/3137 , A61B1/0623 , A61B5/029 , A61B5/0066 , A61B1/00006 , A61B1/00045
Abstract: A catheter comprises an imaging core, an inner sheath enclosing the imaging core, an outer sheath surrounding the inner sheath, and a flexible membrane arranged on the outer sheath and configured to deflect in response to intravascular pressure. At least part of the inner sheath and part of the outer sheath are nested within each other. A chamber is defined by the membrane, and the parts of the inner and outer sheaths that are nested within each other. The chamber provides a space into which the membrane is deflected when surrounded by fluids. A processor controls the imaging core to acquire pressure data by scanning the membrane with light transmitted through the chamber, and to acquire image data by scanning a vessel wall with light transmitted through the inner sheath. If the membrane breaks, the chamber prevents fluids from entering the imaging core, and the catheter continues acquiring image data.
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公开(公告)号：US11375881B2
公开(公告)日：2022-07-05
申请号：US16270304
申请日：2019-02-07
Applicant: CANON U.S.A., INC.
Inventor： Mark Alan Hamm , Albert Harold Dunfee , Badr Elmaanaoui
IPC: A61B1/00 , A61B5/00 , A61B90/00 , A61B1/04 , A61M25/01 , A61M25/06 , A61B6/00 , A61B6/12 , A61B8/12
Abstract: An apparatus includes an elongate member having proximal and distal portions; a rotatable drive cable disposed within the elongate member, the drive cable being connectable to a mechanism to which torque can be applied; and a control assembly mechanically coupled to the drive cable, and configured to disengage the mechanism from the drive cable when the applied torque exceeds a predetermined level, wherein disengagement of the mechanism from the drive cable causes rotation of the drive cable to stop or withdrawal of the drive cable.
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