-
公开(公告)号：US12089978B2
公开(公告)日：2024-09-17
申请号：US17691665
申请日：2022-03-10
Applicant: VATECH Co., Ltd. , VATECH EWOO Holdings Co., Ltd.
Inventor： Sungil Choi
CPC classification number: A61B6/51 , A61B6/03 , A61B6/4435 , A61B6/4452 , A61B6/5205 , G01N23/046 , G06T11/005 , A61B6/025 , G06T3/00 , G06T2207/10072 , G06T2207/10116 , G06T2207/30036
Abstract: Disclosed is an X-ray imaging device, which is capable of providing a tomographic image of an image layer disposed between an axis of rotation and an X-ray source. The imaging device according to the present invention includes a radiography unit having an X-ray source and an X-ray sensor disposed to face each other with a rotating axis therebetween, wherein the X-ray sensor configured to obtain X-ray transmission images, a driver configured to rotate the X-ray source and the X-ray sensor about the rotating axis, and an image processor configured to provide a two-dimensional tomographic image of an image layer disposed between the rotating axis and the X-ray source, by shifting and overlapping the X-ray transmission images after reversing left and right at least some of the X-ray transmission images.
-
公开(公告)号：US20210204386A1
公开(公告)日：2021-07-01
申请号：US17130583
申请日：2020-12-22
Applicant: VATECH Co., Ltd. , VATECH EWOO Holdings Co., Ltd.
Inventor： Seung Hun SHIN
Abstract: The X-ray generator includes a booster for boosting a first DC voltage supplied from a voltage source to a second DC voltage higher than the first DC voltage, at least one capacitor for receiving the second DC voltage and generating a charging voltage on the basis of the second DC voltage, a converter for converting the charging voltage into a driving voltage, an X-ray source for receiving the driving voltage and emitting X-rays according to the driving voltage, and a controller for controlling the booster, the converter, and the X-ray source. The controller calculates a cooling time required for cooling the X-ray source to a predetermined temperature or lower, determines the magnitude of the second DC voltage according to the cooling time, and applies the second DC voltage to the capacitor for the cooling time.
-
公开(公告)号：US10993679B2
公开(公告)日：2021-05-04
申请号：US15741237
申请日：2016-06-30
Applicant: VATECH Co., Ltd. , VATECH EWOO Holdings Co., Ltd.
Inventor： Seunghun Shin , Jinpyo Chun , Taewoo Kim
Abstract: Disclosed is a portable X-ray generation device, which uses an electric field emission X-ray source, and is thus advantageous in reducing weight and volume and has excellent reliability in X-ray emission performance. The portable X-ray generation device according to the present invention includes an electric field emission X-ray source, which includes a cathode electrode having an electron emitter, an anode electrode having an X-ray target surface, and a gate electrode between the cathode electrode and the anode electrode; and a driving signal generator configured to generate at least three driving signals applied to the cathode electrode, the anode electrode, and the gate electrode, respectively, by direct current power having a predetermined voltage, wherein the driving signal generator includes a current controller maintaining a tube current between the anode electrode and the cathode electrode to have a constant value during X-ray emission.
-
4.发明授权公开(公告)号：US10772586B2
公开(公告)日：2020-09-15
申请号：US15778788
申请日：2016-11-24
Applicant: VATECH Co., Ltd. , VATECH EWOO Holdings Co., Ltd.
Inventor： Yeong Kyun Kim , Tae Woo Kim , Min Seok Yun
IPC: A61B6/10 , A61B6/14 , G21K1/10 , H05G1/02 , A61B6/00 , G21F1/08 , G21F3/00 , H05G1/06 , A61B6/06
Abstract: Disclosed are a backscattered ray shielding mechanism and a portable X-ray generating device comprising the same. The backscattered ray shielding mechanism according to the present invention is mounted on a portable X-ray generating hand-held device to emit X-rays and blocking backscattered X-rays during X-ray emission and includes a lead-free lightweight shielding member, which is detachably or foldably mounted as a convertible form on an X-ray emitting unit of the portable X-ray generating device and partially supported by the X-ray emitting unit.
-
公开(公告)号：US10687768B2
公开(公告)日：2020-06-23
申请号：US15512538
申请日：2015-09-18
Applicant: VATECH Co., Ltd. , VATECH EWOO Holdings Co., Ltd.
Inventor： Sung Il Choi , Woong Bae
Abstract: Disclosed is an X-ray image forming device is disclosed. The device includes an X-ray imaging unit including a rotating member rotatable about a rotating shaft and linearly movable, and an X-ray source and an X-ray sensor disposed at opposite ends of the rotating member to face each other with a region of interest therebetween, a penetration data acquisition unit configured to acquire X-ray penetration data from multiple directions crossing through an image layer in the region of interest by controlling the X-ray imaging unit and an image reconstructor configured to generate projection data in a predetermined angle range at each section of the image layer from the X-ray penetration data, and reconstruct a two-dimensional X-ray panoramic image of the image layer based on the projection data.
-
Patent Agency Ranking
公开(公告)号：US20200038154A1
公开(公告)日：2020-02-06
申请号：US16653108
申请日：2019-10-15
Applicant: VATECH Co., Ltd. , VATECH EWOO Holdings Co., Ltd.
Inventor： An O MOON , Yeong Kyun KIM
Abstract: The present invention relates to a combined model scanning and oral cavity scanning apparatus. The combined model scanning and oral cavity scanning apparatus includes an optical three-dimensional measurement unit configured to generate light, acquire intraoral shape information, and acquire model shape information, a data processor configured to generate three-dimensional tooth data, a data transmission unit configured to transmit the three-dimensional tooth data, a main body accommodating the optical three-dimensional measurement unit, the data processor, and the data transmission unit, and at least two intraoral scanning tips configured to be alternately detachable to the main body and provide light paths, wherein the at least two intraoral scanning tips includes a model scanning tip for scanning a dental model.
-
公开(公告)号：US10448906B2
公开(公告)日：2019-10-22
申请号：US15322188
申请日：2015-07-03
Applicant: VATECH Co., Ltd. , VATECH EWOO Holdings Co., Ltd.
Inventor： Han Sung Lee , Tae-Woo Kim
IPC: G03B17/54 , A61B6/14 , A61C19/04 , G03B13/02 , H04N5/222 , H04N5/232 , H05G1/02 , H05G1/10 , A61B6/00 , G03B42/02 , H04N5/32
Abstract: The present invention provides a radiography device for producing an X-ray image of a tooth or a structure supporting the tooth. The radiography device of the present invention includes: an X-ray source for generating X-rays; a projection unit for projecting a user control mode image to the outside as user control information for controlling the X-ray source; and a control unit including an operation unit for user operation, and controlling the X-ray source according to the user control information selected through the operation unit.
-
公开(公告)号：US10373350B2
公开(公告)日：2019-08-06
申请号：US15654868
申请日：2017-07-20
Applicant: VATECH Co., Ltd. , VATECH EWOO Holdings Co., Ltd. , Korea Advanced Institute of Science and Technology
Inventor： Jong chul Ye , Ja wook Gu , Tae Woo Kim , Sung Il Choi , Woong Bae
Abstract: Disclosed is an apparatus for computed tomography (CT) image data reconstruction based on motion compensation. The apparatus for computed tomography (CT) data reconstruction based on motion compensation, the apparatus including a storage configured to store projection radiographs and an image processor configured to obtain pairs of opposite projection radiographs from the projection radiographs, and compensate a movement of a radiography subject based on a correlation between the projection radiographs of each pair of opposite projection radiographs.
-
公开(公告)号：US10307119B2
公开(公告)日：2019-06-04
申请号：US15125580
申请日：2015-03-12
Applicant: VATECH Co., Ltd. , VATECH EWOO Holdings Co., Ltd.
Inventor： Hyung Keun Lim , Jin Pyo Chun
Abstract: The purpose of the present invention is to provide a method for obtaining a more effective 3D facial image for medical use. The present invention provides a medical imaging system includes a 2D surface image obtaining device including at least one camera for photographing a plurality of 2D facial images of an examinee, at different photography angles or ranges, a visual guidance configured to fix an examinee's line of vision, an X-ray radiography device for radiographing a 3D X-ray radiograph of the examinee's head, and an image synthesis unit for generating a 3D facial image by matching the plurality of 2D facial images with the 3D X-ray radiograph.
-
公开(公告)号：US20190059835A1
公开(公告)日：2019-02-28
申请号：US16174251
申请日：2018-10-29
Applicant: VATECH Co., Ltd. , VATECH EWOO Holdings Co., Ltd.
Inventor： Tae Woo KIM , Byung Hun PARK , Sung Il CHOI
CPC classification number: A61B6/14 , A61B6/03 , A61B6/42 , A61B6/4233 , A61B6/501
Abstract: Disclosed is a dental X-ray imaging device having a curved detector. The dental X-ray imaging device according to the present invention comprises: an X-ray source for radially emitting X-rays; and a curved detector formed in a cylindrical two-dimensional curved shape or a round three-dimensional curved shape, which is arranged to be spaced apart at a predetermined distance from the X-ray source and has substantially the same radius of curvature as the predetermined distance.
-
-
-
-
-
-
-
-
-
Search Results
127
records
(took 0.022 seconds)
