PATIENT INTERFACE DEVICE FOR OPHTHALMIC SURGICAL LASER SYSTEM

    公开(公告)号:US20210205129A1

    公开(公告)日:2021-07-08

    申请号:US17210418

    申请日:2021-03-23

    Abstract: Apparatus and method for interfacing an ophthalmic surgical laser system with a patient's eye using a single-piece patient interface (PI). The PI includes a hollow shell, with an applanation lens and a flexible skirt at its lower end. Through channels are formed around the applanation lens to connect the spaces above and below the lens. When the PI is coupled to the laser system and the eye, the upper rim of the shell forms a seal with the laser system and the flexible skirt forms a seal with the eye. A vacuum is applied to the interior of the shell via a vacuum port on the laser system, and the vacuum is communicated to the space enclosed by the applanation lens, the skirt and the eye through the channels around the lens. A magnetic mechanism is also provided to hold the PI shell to the laser system.

    PATIENT INTERFACE DEVICE FOR OPHTHALMIC SURGICAL LASER SYSTEM

    公开(公告)号:US20180303664A1

    公开(公告)日:2018-10-25

    申请号:US15956676

    申请日:2018-04-18

    CPC classification number: A61F9/009 A61F2009/00872 A61F2009/00887

    Abstract: A single-piece patient interface device (PI) for coupling an patient's eye to an ophthalmic surgical laser system, which includes a rigid shell, a flexible suction ring joined to a lower edge of the shell, an applanation lens, and a flexible annular diaphragm which joins the applanation lens to the shell near the lower edge of the shell. The flexible diaphragm allows the applanation lens to move relative to the shell, including to shift in longitudinal and lateral directions of the shell and to tilt. In operation, the surgeon first secures the PI to the patient's eye by hand, and then couples the laser system to the PI by lowering the laser delivery head into the PI shell. During the lowering process, the laser delivery head presses the applanation lens down relative to the PI to applanate the cornea of the eye.

    PATIENT INTERFACE DEVICE FOR OPHTHALMIC SURGICAL LASER SYSTEM

    公开(公告)号:US20180116870A1

    公开(公告)日:2018-05-03

    申请号:US15796610

    申请日:2017-10-27

    CPC classification number: A61F9/009 A61F2210/009

    Abstract: Apparatus and method for interfacing an ophthalmic surgical laser system with a patient's eye using a single-piece patient interface (PI). The PI includes a hollow shell, with an applanation lens and a flexible skirt at its lower end. Through channels are formed around the applanation lens to connect the spaces above and below the lens. When the PI is coupled to the laser system and the eye, the upper rim of the shell forms a seal with the laser system and the flexible skirt forms a seal with the eye. A vacuum is applied to the interior of the shell via a vacuum port on the laser system, and the vacuum is communicated to the space enclosed by the applanation lens, the skirt and the eye through the channels around the lens. A magnetic mechanism is also provided to hold the PI shell to the laser system.

    Patient interface device for laser eye surgery

    公开(公告)号:US11369518B2

    公开(公告)日:2022-06-28

    申请号:US17067333

    申请日:2020-10-09

    Abstract: A patient interface device includes: a first interface port configured to be interfaced with a laser surgery apparatus; a second interface port configured to be interfaced with a patient's eye, the second interface port including an applanating lens for application to a patient's eye during a laser surgery procedure; a chamber extending between the first interface port and the second interface port and defining a chamber therein, wherein air may be evacuated from the chamber by the laser surgery apparatus via the first interface port. The second interface port also includes a retaining ring on which the applanating lens is provided, the retaining ring having through channels extending through the retaining ring from the chamber above the applanating lens to a space below the applanating lens.

    PATIENT INTERFACE DEVICE FOR OPHTHALMIC SURGICAL LASER SYSTEM

    公开(公告)号:US20210022917A1

    公开(公告)日:2021-01-28

    申请号:US17067541

    申请日:2020-10-09

    Abstract: A single-piece patient interface device (PI) for coupling an patient's eye to an ophthalmic surgical laser system, which includes a rigid shell, a flexible suction ring joined to a lower edge of the shell, an applanation lens, and a flexible annular diaphragm which joins the applanation lens to the shell near the lower edge of the shell. The flexible diaphragm allows the applanation lens to move relative to the shell, including to shift in longitudinal and lateral directions of the shell and to tilt. In operation, the surgeon first secures the PI to the patient's eye by hand, and then couples the laser system to the PI by lowering the laser delivery head into the PI shell. During the lowering process, the laser delivery head presses the applanation lens down relative to the PI to applanate the cornea of the eye.

    PATIENT INTERFACE DEVICE FOR LASER EYE SURGERY HAVING LIGHT GUIDING STRUCTURE FOR ILLUMINATING EYE

    公开(公告)号:US20170281407A1

    公开(公告)日:2017-10-05

    申请号:US15479613

    申请日:2017-04-05

    CPC classification number: A61F9/009 A61B3/14 A61B18/22 A61B2018/2272

    Abstract: A patient interface device includes: a first interface port configured to be interfaced with a laser surgery apparatus; a second interface port configured to be interfaced with a patient's eye, the second interface port including an applanating lens for application to a patient's eye during a laser surgery procedure; a chamber extending between the first interface port and the second interface port and defining a chamber therein, wherein air may be evacuated from the chamber by the laser surgery apparatus via the first interface port; and a tubular light guiding structure having at a first end thereof a light receiving surface, configured to receive light, and having at a second end thereof a light-emitting surface, wherein the second surface is disposed adjacent the applanating lens and configured to provide the light in a vicinity of the patient's eye when the applanating lens is applied to the patient's eye.

    Detection of optical surface of patient interface for ophthalmic laser applications using a non-confocal configuration

    公开(公告)号:US12216272B2

    公开(公告)日:2025-02-04

    申请号:US18487027

    申请日:2023-10-13

    Abstract: An ophthalmic laser system uses a non-confocal configuration to determine a laser beam focus position relative to the patient interface (PI) surface. The system includes a light intensity detector with no confocal lens or pinhole between the detector and the objective lens. When the objective focuses the light to a target focus point inside the PI lens at a particular offset from its distal surface, the light signal at the detector peaks. The offset value is determined by fixed system parameters, and can also be empirically determined by directly measuring the PI lens surface by observing the effect of plasma formation at the glass surface. During ophthalmic procedures, the laser focus is first scanned insider the PI lens, and the target focus point location is determined from the peak of the detector signal. The known offset value is then added to obtain the location of the PI lens surface.

    PATIENT INTERFACE DEVICE FOR LASER EYE SURGERY

    公开(公告)号:US20210093481A1

    公开(公告)日:2021-04-01

    申请号:US17067333

    申请日:2020-10-09

    Abstract: A patient interface device includes: a first interface port configured to be interfaced with a laser surgery apparatus; a second interface port configured to be interfaced with a patient's eye, the second interface port including an applanating lens for application to a patient's eye during a laser surgery procedure; a chamber extending between the first interface port and the second interface port and defining a chamber therein, wherein air may be evacuated from the chamber by the laser surgery apparatus via the first interface port. The second interface port also includes a retaining ring on which the applanating lens is provided, the retaining ring having through channels extending through the retaining ring from the chamber above the applanating lens to a space below the applanating lens.

    Patient interface device for laser eye surgery having light guiding structure for illuminating eye

    公开(公告)号:US10799394B2

    公开(公告)日:2020-10-13

    申请号:US15479613

    申请日:2017-04-05

    Abstract: A patient interface device includes: a first interface port configured to be interfaced with a laser surgery apparatus; a second interface port configured to be interfaced with a patient's eye, the second interface port including an applanating lens for application to a patient's eye during a laser surgery procedure; a chamber extending between the first interface port and the second interface port and defining a chamber therein, wherein air may be evacuated from the chamber by the laser surgery apparatus via the first interface port; and a tubular light guiding structure having at a first end thereof a light receiving surface, configured to receive light, and having at a second end thereof a light-emitting surface, wherein the second surface is disposed adjacent the applanating lens and configured to provide the light in a vicinity of the patient's eye when the applanating lens is applied to the patient's eye.

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