- Seguridad nutricional enteral
-
Respiración
- Cánula nasal de oxígeno
- Máscara de oxígeno
- Máscara capacitiva
- Máscara no respiratoria
- Cubierta interior del montículo
- Máscara de ventilación múltiple
- Máscara atomizadora
- Boquilla con atomizador
- Máscara de Traqueostomía
- ABC Blow and filter kit
- Ejercicio de respiración volumétrica
- Ejercicio de respiración estimulante
- Ejercitador de respiración
- Control del moco de la válvula de vacío
- Catéter de succión
- Carpeta de especímenes mucosos
- Catéter de succión cerrado
- Extractor de moco
- Manejo de las vías respiratorias
- Anestesia
- Cirugía laparoscópica
- Cirugía cardiotorácica
- Cuidados endoscópicos y procedimientos de fijación
- Ginecología
-
Cirugía de succión
- Mango Flexi clear yankauer
-
Mango de yankol
- Yankauer de extremo plano
- Extremo de brida yankauer
- Punta cónica yankauer
- On / off yankauer with Flat end
- On / off yankauer con punta cónica
- Bulbos puntiagudos jankaur
- Punta de la Corona
- Empuñadura elástica de Purple
- Mango rígido de succión pull
- Mango de succión de Poole, visible por rayos X
- Yankauer de extremo plano de dos piezas
- Pico de pato
- Poole Suction Handle - 翻译中...
- Sonda de succión
- Succión ortopédica
- Tubo de succión otorrinolaringólogo
- Tank jankor
- Yankauer ortopédico
- Punta quirúrgica del aspirador
- Pipeta Fraser
- Pipeta desechable
- Tubo de conexión de succión
- Forro suave del tanque de succión
- Recipiente de succión con kit de filtro
- Tanque de succión rígido
- Tanque exterior reutilizable
-
Urología
- Lavado de vejiga / vejiga
- Irrigación artroscópica
- Bolsa de drenaje urinario
- Bolsa de drenaje del tracto urinario
- Aparatos de baño
- Bolsa de Enema
- Haga clic en sellar el contenedor de muestra
- Bolsa de succión / bolsa de drenaje urológico
- Catéter nyalaton
- Manguitos y juntas
- Catéter masculino de silicio
-
Cirugía general
- Forro de Cuenca / cortina de Cuenca
- Dispositivo de Administración sanguínea
- Tapa de Heparina
- Tapa protectora
- Aplicador
- Casquillo mixto
- Unidad de decantación
- Tee cock
- Tapa del mango de la lámpara
- Adaptador metálico para la tapa del mango de la lámpara
- Jeringa de lavado de cabeza de bola
- Jeringa para oídos / úlceras
- Tapa de la lente
- Cortina magnética
- Fijador quirúrgico de mano
- Dispensador de bolsa de vómito
- Bolsa de vómitos
- Cepillo médico
- Esponja
- Atomizador de membrana mucosa
- Enjuague dental
- Contador de agujas
- Tapón de enjuague
- Pinza nasal
- Tubo de calibración desechable
- Jeringa de irrigación Toomey
- Jeringa de irrigación dental
- Jeringa de riego con bombilla de 100 ml
- Marcador escleral
- Equipo médico duradero
- Equipo de protección personal
- Productos COVID-19
-
¿Qué es un catéter torácico?Aug 11 , 2022
-
Conocimiento sobre los tubos de oxígeno nasalesJul 05 , 2022
-
The Role and Development of Enema Bags - 翻译中...Jun 08 , 2022
The Manufacturing Material and Lens Size of Goggles - 翻译中...
Eye shield goggles are glasses worn during sports or work. They are mainly used to avoid eye injuries caused by splashes, chemicals, infectious body fluids (such as droplets, blood, etc.) and strong light.
1. Manufacturing materials of eye shield goggles
When this lens is manufactured, a part of metal oxides such as iron, cobalt, chromium, strontium, nickel, manganese, and some rare earth metal oxides such as and neodymium are added to the general optical glass formulation. These metal oxides enable glass to selectively absorb electromagnetic waves in a certain band of light, such as cerium and iron oxides, which can absorb a large amount of ultraviolet rays. The use of this glass lens can reduce the amount of certain wavelengths passing through the lens to reduce or prevent damage to the eyes. Different colors of anti fog goggles can absorb light of different colors. This kind of glasses is divided into two categories, one is absorption type and the other is reflective type. The former is used the most.
The lens pieces are generally round, and the specifications are expressed in terms of their diameter. The unit is mm. There are φ48, φ50, φ52, φ56, φ60, φ65, φ70 and other specifications. The most commonly used specifications are φ56, φ60 and φ65. Due to the popularity of large frames, the use of large-sized lenses such as φ70 has increased.
2. The lens size of eye shield goggles
The size and shape of the spectacle lenses that conform to the shape of the frame after processing the rough piece are naturally determined by the curve of the inner edge of the frame. The lens of anti fog goggles should indicate the horizontal direction and the nasal side, otherwise the lens of asymmetrical shape will become a completely different shape after being rotated.
The size of the lens is expressed by the length of the reference line and the height of the reference line (reference line method), that is, AA'×B'B, in mm (for example, 46×40); or by the horizontal and vertical dimensions of the circumscribed rectangle ( box method).
The shape of the lens is represented by the difference in the shape of the lens. The so-called sheet shape difference is the difference between the length of the reference line and the height of the reference line (reference line method), or the difference between the horizontal and vertical dimensions of the circumscribed rectangle (box method). The unspecified is the baseline method. For example, a 46×40 lens has a shape difference of 6 (ie 46-40). The different lens shapes of some lens series are expressed by the difference of lens shapes. If the shape difference is 3 or 4, it is a tall shape. If the shape difference is 10, it is a short shape. Early lenses are symmetrical - round or oval.
A round eye shield goggle lens has a shape difference of 0, a short oval 4, and a long oval 9. The semi-circle is connected under the semi-ellipse to become a "wide field of view ellipse". In addition, there are "contour", "square", "edgeless" and "motion" and so on. The change in lens shape is mainly caused by the continuous refurbishment of modern eyeglass frames. Frames with different datum line lengths (such as 40, 42, 44, 46) can have the same plate shape difference 4 (eg 40×36, 42×38, 44×40, 46×42). But they are not proportional to each other, so the shape of the slices is also different.
Noticias relacionadas