The pulse oximeter technology has been in place for a very long time since it was first made commercially available in 1970s. At the time of introduction, the devices were so cumbersome and could weigh up to 35lbs. They were also uncomfortable to use and were so expensive selling at an average price of 10, 000 each. This has so far changed and getting a nice looking sizable recording pulse oximeter is not an issue any more.
The working of these devices relies on a very technical scientific principle. Oxygenated blood absorbs red light at 660nm while the deoxygenated blood absorbs infrared light at 940nm. As such, the pulse oximeters are made of two light emitting diodes (660nm and 940nm) and two light collecting sensors. The light emitted from LEDs passes through the tissues and are then collected by the sensors that then measures mount of infrared and red light in it. This allows for recording and reporting on oxygen saturation level. Most of the pulse oximeters are able to deliver data n pulse rate, the level of oxygen saturation and cardiac output.
Each device may slightly vary in its working and it is therefore advisable to consider several features when selecting the best device for the job. If possible, the brand and the prices should not be the main determinants but rather, it is better to look for a device that work best for your situation at the lowest price possible.
The first feature to consider is if the model is FDA certified. Pulse oximeter falls in the category of class II device and hence must be registered with FDA before it can be sold. Currently, most of them are FDA certified by it does not harm to run a check on it by going through the FDA Medical Device Data Base from where the manufacturer name is entered on the search field to access the required information.
Other than that, the issue of accuracy and dependability is very important. With the basic role of measuring the oxygen absorption rate and the pulse rate, the point is to get the devices that have the highest possible accuracy level with the most reliable readings. Most people compare the available options to those in hospitals so as to be sure of their dependability.
Other than this, simplicity also matters. As much as possible, the user guide should be enough to guide you through without having to hire services from an expert which significantly increases expenses. What this means is that the ideal device is very easy to use, read and interpret data. Additionally, its size should also be comfortable to carry around and store as required.
In addition the above mentioned features, there are several other features to look for in an oximeter. This includes its memory capacity, the possibility to connect with computers or phones for data processing. More so, the devices that have multi-person memory (store data for more than one person) are also considered superior.
The other issues include its battery life span, storage case, the logbook, its ease of storage, the general appearance and the software program in it. All these in addition to many other features can help select the best oximeter from the store.
The working of these devices relies on a very technical scientific principle. Oxygenated blood absorbs red light at 660nm while the deoxygenated blood absorbs infrared light at 940nm. As such, the pulse oximeters are made of two light emitting diodes (660nm and 940nm) and two light collecting sensors. The light emitted from LEDs passes through the tissues and are then collected by the sensors that then measures mount of infrared and red light in it. This allows for recording and reporting on oxygen saturation level. Most of the pulse oximeters are able to deliver data n pulse rate, the level of oxygen saturation and cardiac output.
Each device may slightly vary in its working and it is therefore advisable to consider several features when selecting the best device for the job. If possible, the brand and the prices should not be the main determinants but rather, it is better to look for a device that work best for your situation at the lowest price possible.
The first feature to consider is if the model is FDA certified. Pulse oximeter falls in the category of class II device and hence must be registered with FDA before it can be sold. Currently, most of them are FDA certified by it does not harm to run a check on it by going through the FDA Medical Device Data Base from where the manufacturer name is entered on the search field to access the required information.
Other than that, the issue of accuracy and dependability is very important. With the basic role of measuring the oxygen absorption rate and the pulse rate, the point is to get the devices that have the highest possible accuracy level with the most reliable readings. Most people compare the available options to those in hospitals so as to be sure of their dependability.
Other than this, simplicity also matters. As much as possible, the user guide should be enough to guide you through without having to hire services from an expert which significantly increases expenses. What this means is that the ideal device is very easy to use, read and interpret data. Additionally, its size should also be comfortable to carry around and store as required.
In addition the above mentioned features, there are several other features to look for in an oximeter. This includes its memory capacity, the possibility to connect with computers or phones for data processing. More so, the devices that have multi-person memory (store data for more than one person) are also considered superior.
The other issues include its battery life span, storage case, the logbook, its ease of storage, the general appearance and the software program in it. All these in addition to many other features can help select the best oximeter from the store.
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