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Patent Agency Ranking
1.发明申请公开(公告)号：US20230012105A1
公开(公告)日：2023-01-12
申请号：US17948371
申请日：2022-09-20
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sergei Shulepov , Peter Dirksen , Hans-Peter Loebl , Franciscus Paulus Maria Budzelaar , Petrus Henricus Maria Timmermans , Nico Maris Adriaan de Wild
Abstract: Disclosed are systems and methods of operation for capacitive radio frequency micro-electromechanical switches, such as CMUT cells for use in an ultrasound system. An RFMEMS may include substrate, a first electrode connected to the substrate, a membrane and a second electrode connected to the membrane.
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公开(公告)号：US11386883B2
公开(公告)日：2022-07-12
申请号：US16062656
申请日：2016-12-16
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Peter Dirksen , Sergei Shulepov , Franciscus Johannes Gerardus Hakkens , Petrus Henricus Maria Timmermans , Lucas Johannes Anna Maria Beckers
Abstract: An acoustic lens suitable for a CMUT array (74) is provided. The acoustic lens comprising: a first layer (47) comprising a thermoset elastomer having a polymeric material selected from hydrocarbons, wherein the first layer has an inner surface (72) arranged to face the array and an outer convex shaped surface (40) arranged to oppose the inner surface; and a second layer (42) coupled to the outer surface of the first layer and comprising thermoplastic polymer polymethylpentene and an elastomer selected from the polyolefin family (POE) blended therein, wherein the outer layer located at the outer surface of the acoustic window layer, wherein the first layer has a first acoustic wave velocity (v1) and the second layer has a second acoustic wave velocity (v2), said second velocity is larger than the first acoustic wave velocity.
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公开(公告)号：US11857361B2
公开(公告)日：2024-01-02
申请号：US17256248
申请日：2019-06-28
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Franciscus Johannes Gerardus Hakkens , Lucas Johannes Anna Maria Beckers , Johannes Wilhelmus Weekamp , Peter Dirksen , Petrus Henricus Maria Timmermans , Sergei Y. Shulepov , Hans-Peter Loebl
CPC classification number: A61B8/12 , A61B8/445 , A61B8/4477 , A61B8/4494 , G01S7/52085 , G01S15/8906
Abstract: An intraluminal ultrasound imaging device includes a flexible elongate member configured to be positioned within a body lumen of a patient. An ultrasound imaging assembly is disposed at the distal portion of the flexible elongate member. The ultrasound imaging assembly includes a plurality of acoustic elements and an acoustically-transparent window disposed over the plurality of acoustic elements. The acoustically-transparent window comprising a plurality of layers formed on top of one another. The plurality of layers includes an innermost layer directly contacting the plurality of acoustic elements, an outermost layer opposite the innermost layer, and an adhesive layer. The outermost layer includes a tubing. A hardness of the innermost layer is less than hardnesses of every other layer of the plurality of layers. A hardness of the outermost layer is greater than the hardnesses of every other layer of the plurality of layers.
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4.发明授权公开(公告)号：US11458504B2
公开(公告)日：2022-10-04
申请号：US16472472
申请日：2017-12-21
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sergei Shulepov , Peter Dirksen , Hans-Peter Loebl , Franciscus Paulus Maria Budzelaar , Petrus Henricus Maria Timmermans , Nico Maris Adriaan de Wild
Abstract: Disclosed are systems and methods of operation for capacitive radio frequency micro-electromechanical switches, such as CMUT cells for use in an ultrasound system. An RFMEMS may include substrate, a first electrode connected to the substrate, a membrane and a second electrode connected to the membrane. In some examples, there is a dielectric stack between the first and second electrodes. The dielectric stack design minimizes drift in the membrane collapse voltage. In other examples, a voltage supply coupled to an ultrasonic array compressing the CMUT cells is adapted to provide a sequence of voltage profiles to the electrodes of the CMUT cell, wherein each profile includes a bias voltage and a stimulus voltage, and wherein a polarity of each subsequent voltage profile in the sequence is opposite to the polarity of the preceding profile. In another example, there is a capacitance sensing circuit provided, which is arranged to determine a drift voltage of the CMUT cell.
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5.发明申请公开(公告)号：US20210129187A1
公开(公告)日：2021-05-06
申请号：US16472472
申请日：2017-12-21
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sergei Shulepov , Peter Dirksen , Hans-Peter Loebl , Franciscus Paulus Maria Budzelaar , Petrus Henricus Maria Timmermans , Nico Maris Adriaan de Wild
Abstract: Disclosed are systems and methods of operation for capacitive radio frequency micro-electromechanical switches, such as CMUT cells for use in an ultrasound system. An RFMEMS may include substrate, a first electrode connected to the substrate, a membrane and a second electrode connected to the membrane. In some examples, there is a dielectric stack between the first and second electrodes. The dielectric stack design minimizes drift in the membrane collapse voltage. In other examples, a voltage supply coupled to an ultrasonic array compressing the CMUT cells is adapted to provide a sequence of voltage profiles to the electrodes of the CMUT cell, wherein each profile includes a bias voltage and a stimulus voltage, and wherein a polarity of each subsequent voltage profile in the sequence is opposite to the polarity of the preceding profile. In another example, there is a capacitance sensing circuit provided, which is arranged to determine a drift voltage of the CMUT cell.
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