公开(公告)号：US20200297297A1

公开(公告)日：2020-09-24

申请号：US16500858

申请日：2018-12-10

Applicant: KONINKLIJKE PHILIPS N.V. ,  NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO

Inventor： CHRISTIAAN KOK ,  GEREON VOGTMEIER ,  THOMAS KOEHLER ,  JOHANNES WILHELMUS MARIA JACOBS ,  SANDEEP UNNIKRISHNAN ,  DOROTHEE HERMES ,  ANTONIUS MARIA BERNARDUS VAN MOL

IPC: A61B6/00

Abstract: The present invention relates to a device for aligning an X-ray grating to an X-ray radiation source, the device (10) comprising at least two flat X-ray grating segments (11-19); at least one alignment unit (31-39) for aligning one of the at least two flat X-ray grating segments; wherein the at least two flat X-ray grating segments (11-19) are arranged in juxtaposition and are forming an X-ray grating (20); wherein the at least two flat X-ray grating segments (11-19) each comprise a grating surface (41-49) for X-ray radiation, each grating surface (41-49) comprising a geometrical center; wherein normals (21-29) to each of the grating surfaces (41-49) define a common plane (73), wherein the normals (21-29) intersect the geometrical center of the grating surface (41-49); wherein at least a first of the at least two flat X-ray grating segments (11-19) is rotatable around an axis (131-139) that is perpendicular to the common plane (73); and wherein the first of the at least two flat X-ray grating segments (11-19) that is rotatable around the axis (131-139) is connected to a first of the at least one alignment unit (31-39). The invention provides a device (10) and a method (100) which provide an improved X-ray grating (20).

公开(公告)号：US20200315559A1

公开(公告)日：2020-10-08

申请号：US16305904

申请日：2017-06-01

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： HEIDRUN STEINHAUSER ,  CHRISTIAAN KOK

IPC: A61B6/00

Abstract: An X-ray imaging apparatus (IA) having a plurality of X-ray sources (sj) comprising an anti-scatter grid (ASG) for X-ray imaging comprising at least two sets (Mj) of linear x-radiation opaque strips (STj). Each of the strips in the at least two sets have a respective longitudinal axis (Li). There are at least two strips from different sets of the at least two sets that have non-parallel longitudinal axes.

公开(公告)号：US20230321727A1

公开(公告)日：2023-10-12

申请号：US18023871

申请日：2021-08-25

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： GEREON VOGTMEIER ,  CHRISTIAAN KOK

IPC: B22F10/28 ,  B22F10/68 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y80/00

CPC classification number: B22F10/28 ,  B22F10/68 ,  B22F2203/00 ,  B33Y50/00 ,  B33Y80/00 ,  B33Y10/00

Abstract: The present invention relates to a method and a system for treating a surface of an object obtained by direct metal laser sintering. The object is sintered from a metal powder with a grain size distribution. Due to the manufacturing process, the object can comprise a rough surface with remaining grains of the metal powder attached to the surface. The method according to the present invention provides parameters for post-processing the object to achieve a smooth surface suitable for use in medical imaging systems.

公开(公告)号：US20200378029A1

公开(公告)日：2020-12-03

申请号：US16771268

申请日：2018-12-10

Applicant: KONINKLIJKE PHILIPS N.V. ,  NEDERLANDSE ORGANISATIE VOOR TOEGEPAST NATUURWETENSCHAPPELIJK ONDERZOEK TNO

Inventor： GEREON VOGTMEIER ,  CHRISTIAAN KOK ,  THOMAS KOEHLER ,  ANDRIY YAROSHENKO ,  JOHANNES WILHELMUS MARIA JACOBS ,  SANDEEP NIKRISHNAN ,  DOROTHEE HERMES ,  ANTONIUS MARIA BERNARDUS VAN MOL

IPC: C25D11/00 ,  C25D11/24 ,  C25D17/10 ,  G21K1/06

Abstract: The present invention relates to a device for anodized oxidation of an anode element for a curved X-ray grating, the device (10) comprising: an anode element (12); a cathode element (14); an electrolytic medium (16); a conductor element (18); and a carrier element (20); wherein the anode element (12) comprises a first side (11) and a second side (13), wherein the second side (13) faces opposite to the first side (11); wherein the carrier element (20) comprises a curved surface section (21) that extends along a curvature around a center of curvature (30); wherein the carrier element (20) is configured to receive the second side (13) of the anode element (12) for attaching the conductor element (18) to the first side (11) of the anode element (12); wherein the curved surface section (21) is configured to receive the conductor element (18) after detaching the second side (13) of the anode element (12) from the carrier element (20); wherein the electrolytic medium (16) is configured to connect the anode element (12) and the cathode element (14); wherein the cathode element (14) in conjunction with the anode element (12) and the electrolyte medium (16) is configured to generate at least one group of electric field lines (26) that define a plane (31, 33, 35, 37, 39), wherein at least a straight extrapolation (32) of the group of electric field lines intersect the center of curvature, wherein the generation of the at least one group of electric field lines (26) results in an anodized oxidation of the anode element (12) on the curved surface section (21). The invention provides a device (10) that avoids the risk of damaging the grating structures and getting a low yield.