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公开(公告)号：US20180193194A1
公开(公告)日：2018-07-12
申请号：US15911867
申请日：2018-03-05
申请人： PHOTONO OY
发明人： Edward HAEGGSTRÖM , Ari SALMI , Ivan KASSAMAKOV , Heikki NIEMINEN , Timo RAUHALA , Kalle HANHIJÄRVI , Antti KONTIOLA
摘要： An intraocular pressure measurement arrangement is disclosed for measuring pressure of an eye of a patient. The arrangement can detect at least one of acoustic reflectivity, optical reflectivity, optical path difference, positioning of intraocular pressure measurement arrangement with respect to the eye, orientation of intraocular pressure measurement arrangement with respect to the eye, shape of cornea and corneal thickness. At least one source can produce acoustic, nonlinear acoustic, mechanical or a nonlinear mechanical wave from a distance, coupling to the eye to generate at least one surface wave. Upon triggering data acquisition, at least one surface wave from a distance from the eye can be detected to extract surface wave information with pressure information of the eye being based on the surface wave information.
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公开(公告)号：US20220113125A1
公开(公告)日：2022-04-14
申请号：US17430046
申请日：2020-02-25
申请人： PHOTONO OY
发明人： Antti KONTIOLA , Ari SALMI , Risto MONTONEN , Edward HAEGGSTRÖM
摘要： A system for detecting a wave occurring in/on a membrane includes a source for directing an excitation signal obliquely to the membrane and a receiver for measuring interference between a first part of the excitation signal reflected off a front surface of the membrane and a second part of the excitation signal reflected off a rear surface of the membrane. The system includes a processing device for detecting the wave based on a change in the measured interference. The detection of the wave is based on changes caused by the wave in the optical length of a V-shaped part of a propagation path of the second part of the excitation signal, where the V-shaped part of the propagation path is inside the membrane.
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公开(公告)号：US20160374554A1
公开(公告)日：2016-12-29
申请号：US15257429
申请日：2016-09-06
申请人： Photono Oy
发明人： Antti KONTIOLA , Edward HÄGGSTRÖM , Ari SALMI , Heikki NIEMINEN
CPC分类号： A61B3/165 , A61B3/102 , A61B5/0051 , A61B8/10
摘要： An intraocular pressure measurement arrangement is disclosed for measuring pressure of an eye of a patient. The arrangement can include at least one source for producing mechanical waves of several frequencies from a distance to the eye of the patient to generate at least one surface wave to the eye, a detector for detecting at least one surface wave from a distance from the eye to extract surface wave information, and a device for determining pressure information of the eye based on the surface wave information.
摘要翻译： 公开了一种用于测量患者眼睛压力的眼压测量装置。 该装置可以包括至少一个源，用于从距离患者的眼睛的距离产生几个频率的机械波，以向眼睛产生至少一个表面波，用于从距离眼睛的距离检测至少一个表面波的检测器 提取表面波信息，以及基于表面波信息确定眼睛的压力信息的装置。
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公开(公告)号：US20210290057A1
公开(公告)日：2021-09-23
申请号：US17303667
申请日：2021-06-04
申请人： PHOTONO OY
发明人： Antti KONTIOLA , Edward HÄGGSTRÖM , Ari SALMI , Heikki NIEMINEN
摘要： An intraocular pressure measurement arrangement is disclosed for measuring pressure of an eye of a patient. The arrangement can include at least one source for producing mechanical waves of several frequencies from a distance to the eye of the patient to generate at least one surface wave to the eye, a detector for detecting at least one surface wave from a distance from the eye to extract surface wave information, and a device for determining pressure information of the eye based on the surface wave information.
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公开(公告)号：US20160374555A1
公开(公告)日：2016-12-29
申请号：US15257522
申请日：2016-09-06
申请人： PHOTONO OY
发明人： Antti KONTIOLA , Edward HÄGGSTRÖM , Ari SALMI , Heikki NIEMINEN
CPC分类号： A61B3/165 , A61B3/102 , A61B5/0051 , A61B8/10
摘要： An intraocular pressure measurement arrangement is disclosed for measuring pressure of an eye of a patient. The arrangement can include at least one source for producing mechanical waves of several frequencies from a distance to the eye of the patient to generate at least one surface wave to the eye, a detector for detecting at least one surface wave from a distance from the eye to extract surface wave information, and a device for determining pressure information of the eye based on the surface wave information.
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公开(公告)号：US20160066786A1
公开(公告)日：2016-03-10
申请号：US14785603
申请日：2014-04-17
申请人： PHOTONO OY
发明人： Antti KONTIOLA
CPC分类号： A61B3/165 , A61B3/1005 , A61B3/102 , A61B3/107 , A61B5/0066 , A61B5/0095
摘要： A method is disclosed for measuring pressure under a flexible cover by utilizing electromagnetic waves. Laser radiation is directed to the cover from a distance to generate vibration or a mechanical wave at the cover at at least one generation location of the cover on the basis of photoacoustic phenomena. Based on the electromagnetic waves, cover vibrations are detected due to the mechanical wave, and recorded to detect the mechanical wave at at least one recording location and to form mechanical wave information. Pressure information of pressure under the flexible cover is detected based on at least one recorded signal.
摘要翻译： 公开了一种通过利用电磁波来测量柔性盖下的压力的方法。 基于光声现象，激光辐射从一定距离被引导到盖上，以在盖的至少一个生成位置处在盖处产生振动或机械波。 基于电磁波，由于机械波而检测盖振动，并记录在至少一个记录位置处以检测机械波并形成机械波信息。 基于至少一个记录信号检测柔性盖下的压力的压力信息。
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公开(公告)号：US20230100337A1
公开(公告)日：2023-03-30
申请号：US17798843
申请日：2020-12-17
申请人： PHOTONO OY
发明人： Antti KONTIOLA , Patrick GRAHN
IPC分类号： A61B3/16
摘要： A device for detecting motion of a surface includes a light source for emitting light, a focusing lens configured to focus the light, and a detector configured to receive the focused light reflected off the surface and to detect motion of a distribution pattern of the reflected light. The motion of the distribution pattern of the reflected light is indicative of the motion of the surface. A conic constant of the focusing lens is in the range from □1.5 to □0.5, and a diameter of the focusing lens is at least 60% of the distance from the focusing lens to a beam waist of the focused light. When the conic constant and the diameter are within the above-mentioned ranges, the device is suitable for handheld apparatuses for free-hand measurements of small motions of surfaces. A handheld apparatus can be for example an apparatus for detecting eye pressure.
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公开(公告)号：US20220110523A1
公开(公告)日：2022-04-14
申请号：US17558091
申请日：2021-12-21
申请人： PHOTONO OY
发明人： Antti KONTIOLA , Edward HÄGGSTRÖM , Ari SALMI , Heikki NIEMINEN
摘要： An intraocular pressure measurement arrangement is disclosed for measuring pressure of an eye of a patient. The arrangement can include at least one source for producing mechanical waves of several frequencies from a distance to the eye of the patient to generate at least one surface wave to the eye, a detector for detecting at least one surface wave from a distance from the eye to extract surface wave information, and a device for determining pressure information of the eye based on the surface wave information.
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公开(公告)号：US20220015632A1
公开(公告)日：2022-01-20
申请号：US17297851
申请日：2019-11-20
申请人： PHOTONO OY
发明人： Antti KONTIOLA , Ari SALMI , Edward HÆGGSTRÖM , Daniel Veira CANLE , Henri MALINEN , Joni MÄKINEN
摘要： A system for measuring pressure of an eye includes an excitation source for producing a travelling air vortex ring and for directing the travelling air vortex ring to the eye, a detector for detecting an interaction between the travelling air vortex ring and a surface of the eye, and a processing device for determining an estimate of the pressure of the eye based on the detected interaction between the travelling air vortex ring and the surface of the eye. The travelling air vortex ring is produced by directing an air pressure pulse into a flow guide, and the air pressure pulse is generated with an electric spark or otherwise so that no swinging mass, such as a piston, is needed. This is advantageous especially in a case of a handheld device because a swinging mass would tend to adversely move the handheld device during a measurement.
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