Abstract:
The invention relates to a method and an arrangement for controlling the movements of the functional elements (13-16) of an X-ray apparatus, such as a panoramic X-ray apparatus. In the method, one or more power means (1) provided with a control system (21), a power stage (11) and a rotating power output shaft (2) is/are controlled so as to produce the aforesaid movements of the functional elements. The power output shaft (2) of the power means is caused to rotate by the control system and the power stage so that the power output shaft is in direct contact with the force receiving means (3, 3a) of the functional element.
Abstract:
The invention relates to a computed tomography apparatus designed for dental use, which includes a first arm part supporting imaging means and arranged turnable by means of an actuator, and a second arm part supporting the first arm part and arranged turnable by means of an actuator. The actuators are arranged controllable such that, during the imaging process, said first arm part does not rotate but remains in its place in relation to said second arm part and said second arm part rotates about its rotation axis.
Abstract:
This invention relates to a computer tomography apparatus, especially to a computer tomography apparatus intended for use in connection with odontological diagnostics. In the computer tomography apparatus according to the invention, it is essential that one has arranged thereto, in addition to a computer tomography imaging station, a second imaging station comprising second patient support means 16' at a distance from said computer tomography imaging station. The invention enables more versatile odontological imaging than prior art apparatuses, whereby one does not have to acquire to the clinic, in addition to the computer tomography apparatus, e.g. a separate skull-imaging device .
Abstract:
A panoramic X-ray apparatus, comprising at least a support element (2), a patient support (9) arranged to be movable in a vertical direction and an imaging station (4a). The panoramic X-ray apparatus has a support structure (4) arranged to support at least the imaging station (4a), and it has an actuator (15) producing a vertical linear motion for moving at least the imaging station (4a) to different height positions. The panoramic X-ray apparatus comprises a transmission mechanism (28) which affects the velocity/travel distance of the vertical movement of the imaging station (4a) and which is connected at least to the actuator (15) and either to the aforesaid support structure (4) or to the aforesaid support element in such manner that the velocity/ travel distance of the vertical movement of the imaging station (4a) is substantially greater than the velocity/ travel distance of the motion imparted by the actuator (15) to the transmission mechanism (28).
Abstract:
The invention concerns an integrated dental care apparatus which comprises a patient chair (20) and a dental care unit (10), which according to the invention are arranged to comprise means for mounting the dental care unit (10) on a floor while the dental care unit (10) and the patient chair (20) are structurally connected by means which support the patient chair (20), and wherein both the dental care unit (10) and the patient chair (20) are arranged to comprise means for enabling them to be turned in relation to a vertical axis (101, 102).
Abstract:
Computed tomography apparatus for odontology, which includes an arm part arranged to be turnable, to which arm part at a distance from each other a radiation source and a receiver of image information have been arranged, in which apparatus said arm part is arranged to locate or to be transferred to such location with respect to the volume desired to be imaged that when the arm part is turned during the imaging, at least over a substantial angular range only a portion of the volume arranged to become imaged is within the radiation beam, and in which the control system of the apparatus comprises a control routine which then controls said radiation source to generate radiation as pulsed.
Abstract:
The present invention relates to limiting an x-ray beam used in connection with dental extra oral imaging by a plate mechanism (1) arranged to be operated by a drive mechanism including an actuator (3) arranged to move at least one plate element (2, 3) comprised in the mechanism (1). The plate mechanism (1) includes at least a first and a second plate element (2, 3) which include at least a first slot (12) and a second slot (13), respectively, and said drive mechanism is arranged to directly or indirectly move said first plate element (2) independently of location of said second plate element (3) and said second plate element (3) is arranged to be moved as dependent on the movements of said first plate element (2) only.
Abstract:
The invention relates, in particular, to structures of a dental and medical cone beam computed tomography (CBCT) apparatus. The basic construction of the apparatus includes two elongated frame parts (11, 21) out of which the first frame part (11) is arranged to support X-ray imaging means (14, 15) and wherein the frame parts (11, 21) are mechanically connected to each other via an articulated construction (22) so as to allow for tilting of the first frame part (11) supporting the X-ray imaging means (14, 15) with respect to the second frame part (21). At the proximity of the second end of the first and second elongated frame parts (11, 21) is arranged a locking mechanism (24) configured to enable connecting together and disconnecting the first and second elongated frame parts (11, 21).
Abstract:
The invention relates, in particular, to structures of dental and medical cone beam computed tomography (CBCT) imaging apparatus. The basic construction of the apparatus includes a substantially vertically extending frame part (11) which supports via a horizontally extending support construction (12) the X-ray imaging means (14, 15) of the apparatus. The apparatus includes a patient support structure (18) which extends substantially in parallel with and is essentially of the same length as the substantially vertically extending frame part (11).
Abstract:
The invention concerns an X-ray imaging apparatus for imaging a skull or a partial area of the skull, which apparatus comprises between the X-ray source and detector a patient support means (17). The patient support means (17) comprise a rear rest structure (170) containing a support part (171) arranged to get positioned at occipital area. The rear rest structure (170) comprises a first elongated supporting structure (172), a first end of which containing said support part (171) and a second end of which extending to different side of the imaging station (18) than where said support part (171) is located.