RU44493U1 - PHOTOSTAT - Google Patents

Abstract

The proposed utility model relates to medicine, namely to dentistry and can be used in orthopedic dentistry, orthodontics for diagnostic and therapeutic measures, as well as forensic practice in order to identify a person. The difference is that the device is additionally equipped with a platform for fastening the head stops, a fixing rod, a table for installing the camera, cantilever mounting, upper and lower mounting brackets, a rigid arc is curved in a transverse plane and fixed on top of the head support mounting area, on which are also located mutually perpendicular upper and lower graduated slats with scale rulers, a table for mounting the camera and a mounting console with an upper d and bottom mounting brackets. The photostat allows photographing under the same technical conditions (distance from the camera to the object, lighting, position of the patient’s head, etc.), then plane photographs are entered into the computer, anatomical landmarks are marked and measurements are taken. Based on the data obtained, a diagnosis is made, a treatment plan is drawn up. The obtained data can also be used in a computer program for personal identification.

Description

The proposed utility model relates to medicine, namely to dentistry and can be used in orthopedic dentistry, orthodontics and forensic medicine.

To study the face, conduct various measurements in photographs and analyze them in dentistry, photographs of the face and profile of the face are used. Shooting must be carried out under the same technical conditions (distance from the camera to the object, lighting, position of the patient’s head, etc.) These requirements can be fulfilled using various instruments.

At present, the Korkhaus photostat is known, which is a more stable installation compared to previously proposed ones. It consists of a ring from which the nasal lamina and processes depart. The nasal plate is mounted on the nasal, and the processes on the infraorbital points of the face of the subject. Due to this, the photostat fixes the head of the subject always in the same position with respect to the Frankfurt horizontal, thereby making it possible to obtain photographs suitable for comparison (see E.I. Gavrilov, A.S. Scherbakov "Orthopedic Dentistry." - Moscow. : Medicine. -1984. - pp. 418-420, Fig. 190). A disadvantage of the known device is that the ring and nose plate interfere with a detailed study of the face in the photograph.

The cephalostat of Davydov and Trezubov (E.I. Gavrilov, A.S. Scherbakov "Orthopedic Dentistry" is known. - Moscow: Medicine. -1984. - p. 421, Fig. 192), which has brackets for fixing the head when receiving a teleentgenogram in a certain position. A disadvantage of the known device is its combination with the elements fixing the cassette with the x-ray film and the ability to take pictures only in the x-ray room.

Famous photocephalostat Actovoy F.S., having strips for fixing the head, is equipped with mutually perpendicular graded strips, above the lower trims there is a rigid arc, the ends of which are movable and bear ear olives, and the trims and the arc are fixed on a tripod with the possibility of their mutual movement in the vertical plane (patent Ru No. 2211661 C1.) A disadvantage of the known device, taken as a prototype, is the lack of a stable camera position relative to the subject.

The objective of the proposed utility model is the development of a device that provides a stable position of the camera relative to the object of photography, which, in turn, creates the conditions for a comparative analysis of photogrammetric indicators (for this, plane images are entered into a computer, anatomical landmarks are marked and measurements are taken). Achieving this goal is a new technical result. This object is achieved in that the device is additionally equipped with a platform for fastening the head stops, a fixing rod, a table for installing the camera, cantilever mounting, upper and lower mounting brackets, a rigid arc is curved in a transverse plane and fixed on top of the head support mounting area, which also mutually perpendicular upper and lower graduated bars with scale rulers are located, to the fixing bar

attached a table for installing the camera and a mounting console with

upper and lower mounting brackets.

The utility model is illustrated in the drawing, which shows a General view.

device (figure 1)

In figure 1 is indicated:

1 - platform stop head mounts;

2 - stationary fastener;

3 - rigid collapsible arc with movable head clamps;

4 - lower mounting bracket (removable);

5 - upper mounting bracket (removable);

6 - fixing rod;

7 - a table for installing the camera;

8 - ear olives;

9 - mounting bracket.

The device operates as follows. The photostat of the upper and lower mounting brackets is fixed to the vertical support (dental unit). To fix the head, the patient is located in the dental chair. Movable head retainers are pressed against the tragus of the ears and fix the head in a position in which the mid-sagittal and orbital planes are perpendicular to the cabinet floor, and the Frankfurt horizontal is parallel to it. The elements of the device minimally obscure the contours of the face. The presence of large-scale rulers provides the necessary measurements in photographs. The location of the camera at a certain standard distance from the subject is ensured by a special locking bar. Photographing is carried out, then planar photographs are entered into the computer, anatomical landmarks are marked and measurements are taken. Based on the data obtained, a diagnosis is made, a treatment plan is drawn up. The obtained data can also be used in a computer program for personal identification.

Utility Model Formula

A photostat, including mutually perpendicular upper and lower graduated slats with scale rulers, of which the upper one is installed parallel to the pupil line, and the lower parallel to the Frankfurt horizontal, a rigid collapsible arc that is movable and has ear olives, DISTINCTING by the fact that the device is additionally equipped with a platform for fastening the stops a head, a fixing bar, a table for installing the camera, a cantilever mount, upper and lower mounting brackets, a rigid arc is curved in a transversal plane bones and is fixed on top at the mounting platform for the head rests, on which mutually perpendicular upper and lower graduated strips with scale rulers are also located, a table for mounting the camera and a mounting console with upper and lower mounting brackets are attached to the fixing rod.

Claims (1)

A photostat, including mutually perpendicular upper and lower graduated slats with scale rulers, of which the upper one is parallel to the pupil line and the lower parallel to the Frankfurt horizontal, a rigid collapsible arc that is movable and has ear olives, characterized in that the device is additionally equipped with a platform for fastening the stops a head, a fixing bar, a table for installing the camera, a cantilever mount, upper and lower mounting brackets, a rigid arc is curved in a transversal plane bones and is fixed on top at the mounting platform for the head rests, on which mutually perpendicular upper and lower graduated strips with scale rulers are also located, a table for mounting the camera and a mounting console with upper and lower mounting brackets are attached to the fixing rod.