IMAGING RECONSTRUCTION USING REAL-TIME SIGNAL OF ROTARY POSITION FROM NEAR DISTAL END ENCODER

    公开(公告)号:US20220087507A1

    公开(公告)日:2022-03-24

    申请号:US17424844

    申请日:2020-01-28

    Abstract: One or more devices, systems, methods, and storage mediums for imaging and for minimally invasive medical devices, such as, but not limited to, for intravascular ultrasound (IVUS), spectrally encoded endoscopy (SEE), and/or Optical Coherence Tomography (OCT), are provided herein. One or more embodiments may involve imaging reconstruction using a real-time signal of a rotary position from a near distal end encoder. One or more devices, systems, methods and storage mediums may include, in one or more embodiments, a rotary encoder or sensor to detect an angular position of a rotary shaft or a drive cable, for example, to reduce imaging Non-Uniform Rotational Distortion. Examples of such applications include imaging, evaluating and diagnosing biological objects, such as, but not limited to, for Gastro-intestinal, cardio and/or ophthalmic applications, and being obtained via one or more optical instruments.

    MOTOR POSITION CONTROL BASED ON SERVO-TO-EDGE DIRECTION FEEDBACK

    公开(公告)号:US20200350846A1

    公开(公告)日:2020-11-05

    申请号:US16864794

    申请日:2020-05-01

    Abstract: System, apparatus, and methods for controlling a motor by using servo-to-edge direction feedback are disclosed. An exemplary apparatus comprises: a fiber optic rotary junction (FORJ) having a rotatable portion; a motor to rotate the rotatable portion; a connector to connect the rotatable portion to a rotatable fiber of an imaging probe; a sensor positioned in close proximity to a target and configured to output a signal indicative of which one of at least two distinguishable regions of the target is proximal to the sensor; and a controller configured to control the rotational direction of the motor based on the sensor signal. In one embodiment, the motor is a servo-motor, and the rotation of the motor and/or rotatable portion is controlled by a servo-loop to change the rotation direction of the motor back-and-forth around a predetermined rotational position without the use of an encoder.

    APPARATUS AND METHOD FOR MAINTAINING PRECISE END-TO-END RELATIVE POSITION BETWEEN TWO OPTICAL FIBERS

    公开(公告)号:US20200310102A1

    公开(公告)日:2020-10-01

    申请号:US16828385

    申请日:2020-03-24

    Abstract: According to at least one embodiment of the present disclosure, there is provided an apparatus comprising: a first optical fiber in communication with a light source; a second optical fiber in communication with an imaging probe; and a fiber optic rotary joint (FORJ) where a distal end of the first optical fiber and a proximal end of the second optical fiber are positioned coaxially with a gap between the fibers' end faces. The FORJ is adapted to transmit light between the fibers' end faces, and to rotate at least one of first and second optical fibers relative to the other. An actuator is configured to axially translate at least one of the first and second optical fibers relative to the other in a reciprocal motion. A light intensity sensor is adapted to measure light intensity changes due to optical interference between light reflected from the fibers' end faces. And, a control system is configured to receive light intensity measurements from the sensor and to use the light intensity measurements to control the reciprocal motion of the linear actuator to maintain the length of the gap between fibers' end faces substantially constant.

    Beam-steering devices employing electrowetting prisms

    公开(公告)号:US10678044B2

    公开(公告)日:2020-06-09

    申请号:US15684287

    申请日:2017-08-23

    Abstract: A rotation-free beam-steering device for manipulating probing and reflected optical beams includes at least one electrowetting cell having at least one side wall defining an inner space. The at least one side wall has a lining adjacent to the inner space. A liquid at least partially fills the inner space. The liquid has at least one controlled surface not in contact with the wall lining. The liquid further has a contact angle with the wall lining. The at least one controlled surface is disposed to interface with an optical beam exiting from a distal end of an optical fiber at an incidence angle. At least two electrodes are provided separated from the inner space by the lining. An electrical potential on the at least two electrodes is controlled to adjust the contact angle of the liquid bounding the at least one controlled surface.

    OPTICAL ALIGNMENT OF FIBER-OPTIC ROTARY JOINT ASSEMBLY

    公开(公告)号:US20190146163A1

    公开(公告)日:2019-05-16

    申请号:US16243934

    申请日:2019-01-09

    Abstract: A first optical axis of a first optical component is caused to be at a first angle with respect to a first precision surface of the first optical component. A second optical axis of a second optical component is aligned to be at a second angle to a second flat surface of the second optical component. The second angle is equal to or derived from the first angle. The first and second flat surfaces are caused to directly face each other to allow only sliding motion between the first and second flat surfaces. The sliding motion is performed between the first and second flat surfaces until the first and second optical axes are sufficiently collinear.

    BAYONET CONNECTOR AND METHODS FOR INCORPORATING BAYONET CONNECTOR

    公开(公告)号:US20170294741A1

    公开(公告)日:2017-10-12

    申请号:US15485607

    申请日:2017-04-12

    Abstract: A bayonet style connector and methods for using the connector are provided. The bayonet style connector is particularly capable of single-handed manipulation by a user. It comprises a cylindrical housing; a boss and a locking boss on the outer surface of the cylindrical housing; and a handle. The locking boss is configured to resiliently move relative to the cylindrical housing, and the handle is configured to move the locking boss.

    Patient to user interface holster
    39.
    外观设计

    公开(公告)号:USD996620S1

    公开(公告)日:2023-08-22

    申请号:US29747352

    申请日:2020-08-21

    Abstract: FIG. 1 is a left and front side perspective view of a patient to user interface holster, which is depicted in the environment of a mobile cart;
    FIG. 2 is a left and back side perspective view thereof;
    FIG. 3 is a front perspective view thereof; and,
    FIG. 4 is a top and front perspective view thereof.
    The dash lines in the drawings depict environmental subject matter and form no part of the claimed design. The dot-dash lines depict the boundaries of the claim and form no part thereof.

    Motor position control based on servo-to-edge direction feedback

    公开(公告)号:US11502633B2

    公开(公告)日:2022-11-15

    申请号:US16864794

    申请日:2020-05-01

    Abstract: System, apparatus, and methods for controlling a motor by using servo-to-edge direction feedback are disclosed. An exemplary apparatus comprises: a fiber optic rotary junction (FORJ) having a rotatable portion; a motor to rotate the rotatable portion; a connector to connect the rotatable portion to a rotatable fiber of an imaging probe; a sensor positioned in close proximity to a target and configured to output a signal indicative of which one of at least two distinguishable regions of the target is proximal to the sensor; and a controller configured to control the rotational direction of the motor based on the sensor signal. In one embodiment, the motor is a servo-motor, and the rotation of the motor and/or rotatable portion is controlled by a servo-loop to change the rotation direction of the motor back-and-forth around a predetermined rotational position without the use of an encoder.

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