A negatoscope is a special device that allows you to analyze radiographs, as well as compare a number of images to make a correct diagnosis for a patient or monitor a disease during treatment.
Medical negatoscope allows you to study both dry and wet negative images. This device is used constantly in various medical institutions or during classes in classrooms. Usually, for use, the negatoscope is fixed on a special bracket, and the image is viewed in a horizontal position.
Modern negatoscopes
The negatoscope consists of equipment that regulates the operation of the device, a lamp, a steel case, mounting fittings and acrylic glass. This design of the device is universal and allows you to use it both on a horizontal surface and on the wall. The functioning of the device is based on the light passing through the glass and the picture, which is scattered and "transmits" the necessary information. The convenience of image analysis is providedthe presence of shutters for diaphragming the surface and the function of adjusting the brightness of the glow.
The most modern models can be equipped with a liquid crystal display, operate both from batteries and from the mains. At the same time, the price of such medical negatoscopes is, of course, a little higher.
As a rule, a modern negatoscope is equipped with fluorescent lamps. They practically do not distort the picture with constant flicker, and when the device is started, they flare up much faster. At the same time, a negatoscope with fluorescent lamps also has its advantages - it will last much longer and be more affordable.
Features
Modern medical negatoscopes are classified by screen size into:
- single-frame;
- two-frame;
- three-frame;
- four-frame.
The screens of the devices, designed for 3 and 4 x-rays, are divided into two separate zones with individual illumination of each of them (frame-by-frame activation). Bright diffused light allows you to study the smallest details in the picture and is produced by fluorescent or fluorescent lamps, which differ in their brightness level.
Before you purchase a negatoscope, you need to study its following characteristics and decide on its purpose:
- appointment of equipment - medical general purpose negatoscope, for mammography, traumatology, dentistry, etc.
- hull design - all-metal or prefabricatedcollapsible;
- lamp power, lamp type, glow color;
- power type - mains or battery;
- view screen parameters (size, material);
- installation type - desktop or wall model;
- percentage of uneven illumination;
- possibility of dimer brightness control.
For medical institutions
Two-frame medical negatoscope NM-2 with a size of 430x720 mm is designed to view wet and dry x-rays. It can be placed both on the wall and on a horizontal surface.
This model is most often used to equip doctors' offices of various profiles and X-ray departments in medical institutions.
The cost of a medical negatoscope NM-2 is within 46-50 thousand rubles.
Features and Benefits:
- through the use of an electronic control unit, you can turn on the lamp instantly and without flicker;
- smooth adjustment of the brightness of each section;
- due to the use of fluorescent lamps with high light output, low heating and bright glow with low power consumption;
- possibility of single-frame switching, which allows you to view both a group of pictures at the same time, and each picture separately;
- anti-reflective screen coating;
- Easy and quick lamp replacement;
- for attaching pictures - a convenient roller clamp.
Single-frame negatoscope HP1-02
This 430x370 mm model is designed forviewing in transmitted light on the screen of radiographs and series of images for diagnosing diseases.
Used to equip X-ray rooms and medical departments of various profiles in medical institutions.
This medical imager is available in four different screen sizes.
Product price: RUB 7500-9000
Characteristic benefits (according to reviews):
- all-metal body;
- smooth brightness control in the range from 40 to 100%;
- presence of a milky-white polystyrene screen;
- can be installed on a table or wall;
- as a light source - ring fluorescent lamps;
- thanks to the powder coating of the housing, high resistance to disinfection has been achieved.
Widely used
Medical negatoscope HM-1 LED is designed for viewing dry and wet X-ray images in transmitted light.
Price: 26-34 thousand rubles.
Usage:
- used to equip X-ray rooms of clinics, laboratories, hospitals and research institutes.
- models of negatoscopes with LED technology and screen brightness that allows images to be seen through at high optical density;
Features:
The negatoscope is equipped with the option of adjusting the light spot by position, size and brightness
Portable negatoscope NP-10
Designed forviewing in the conditions of stationary x-ray departments in the transmitted light of x-ray images in the format up to 24x 0 cm inclusive.
Structurally, this medical negatoscope is a metal case reinforced on the base on two brackets. The device can be wall-mounted or placed on a table. The body of the negatoscope can be installed in vertical or inclined positions. The tilt is fixed using the handle on the side wall of the case.
On the front of the negatoscope there is a metal frame that fixes the milky foam glass. Brackets are attached to the frame for hanging or clamping radiographs. At the bottom of the frame there is a groove for draining water in case of viewing wet shots. On the back side of the device, with the help of three screws, a cap with a built-in lamp socket is attached, which illuminates the screen. The device turns on the network.
Specifications:
- number of lamps - 1;
- light source - incandescent lamp;
- lamp power - 60 W;
- screen size - 300x300 mm.
