In the field of medical endoscopy, flexible or rigid endoscopes are utilized to make diagnoses and to conduct internal medical procedures with the least possible invasion. The use of mirrors allows stiff endoscopes to carry light and image data into and out of the body. For flexible endoscopes, optical waveguides are used to carry the light for illumination and the image.
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Image Credit: First Sensor
Videoscopes, or video-endoscopes, are particular types of flexible endoscopes which employ a CCP chip at the end point of the endoscope for imaging. A video cable then conveys the digital image data electronically for presentation on a monitor.
Generally, endoscopy systems are linked with an insufflator, which directs CO2 gas into the body of the patient, creating voids which offer space for the endoscopic analysis or operation, for example, in the course of procedures in the abdominal cavity (laparoscopy).
Modern insufflators have a highly accurate pressure and flow control so as to be able to set and maintain even the smallest body cavities precisely.
Sensor Solutions for Endoscopy
First Sensor designs and produces extremely dependable sensors as well as made-to-order sensor systems as a strategic partner to producers of medical products in the endoscopy and insufflation fields.
As a supplier of development services, First Sensor commonly offers comprehensive optical systems for videoscopes. These systems consolidate both the CCD image sensor chip and miniature lens systems into a conveniently-sized unit.
In order to build and calibrate semiconductor chips and micro-optics in compliance with clean room conditions, First Sensor employs advanced layout and connecting technologies alongside a wealth of technological know-how from development projects for medical device producers.
For CO2 insufflators, First Sensor offers extremely sensitive and quick thermal mass flow sensors. Alongside regular sensors, the company designs and builds custom-made MEMS mass flow sensors within a modular technology platform.
As well as extremely high resolutions, the sensors achieve ultra-fast response time of less than 2 ms, as well as great dynamic ranges for measurements of up to 300 l/min.
First Sensor’s piezoresistive silicon pressure sensors of the HDI and HCE series monitor the insufflation pressure caused by the instrument. Thanks to their extreme sensitivity, they can sense tiny variations in pressure of as little as fractions of a millibar, while providing consistent pressure values alongside contemporary control electronics.
With a custom-made sensor and system from First Sensor, you can enjoy easy synthesis in end devices, lower financial outgoings during production of devices, and, as a result of brief design cycles, a competitive edge as a manufacturer of medical products.
First Sensor’s comprehensive support, design, manufacture and services systems are compliant with the strict standards for medical products, as detailed in EN ISO 13485.
This information has been sourced, reviewed and adapted from materials provided by First Sensor AG.
For more information on this source, please visit First Sensor AG.