The technology of pulse oximeter has been in existence for long and was first made commercially available in the 1970s, when they were bulky and clumsy weighing up to 35lbs. By then, they were very uncomfortable to use and each unit was quite expensive, retailing at about $10, 000. The situation has drastically changed, one just needs a few dollars to acquire a fingertip model of a recording pulse oximeter.
Their working is based on scientific principles that have been in place for long. Ideally, oxygenated blood absorbs the red light at 660nm significantly different from 940nm where the deoxygenated blood absorbs infrared light. With this in mind, the gadgets are designed to emit the two light rays (red light and infrared light from) from LEDs. These are passed through the body tissues and absorbed by the data readings obtain includes the oxygen level in blood, the pulse rate and cardiovascular conditions.
Even with the same working principles, different models differ in a number of ways. Most significantly though, there are critical differences where your selection criteria should be based on. It is advisable that the rice or brand name should not be the first issues to consider, but rather go deep and find out about their working.
To start with, the model must be FDA approved. Given that pulse oximeter falls in the class II classification of medical gadgets, it must have FDA approval before it can be sold to the public. Presently, the greater part of them have FDA approval, but just for confirmation, it is advisable to run through the FDA medical Device Database, enter the model name or manufacturer name and get details regarding its approvals.
The most significant aspect however is to find out is the device is able to give very accurate and reliable readings at its specific working range. The role is to measure the oxygen saturation level in the blood tissue and the results are very useful. As such, your goal is to obtain the device that gives the best possible results. You can compare it with those used in medical facilities for its accuracy level.
The device should also be relatively easy to use. If possible, it should be used by all family members without having to struggle. In fact, the user manual alone should be enough to guide you through without having to involve an expert. It should also be of the size that comfortably work for the targeted end user, be it children or adults.
In addition to these, there are several other features that go a long way in assisting you make the right choice. These include its memory, Ability to connect to a computer or phone to allow for data access and analysis. The devices that have multi-person memory status are also considered deal since data for more than one person.
Other issues that should also put into consideration are the battery lifespan, the case for the device, its logbook, the ease of storage and general appearance among others. If all these are put into consideration, then the value for money is likely to be realized.
Their working is based on scientific principles that have been in place for long. Ideally, oxygenated blood absorbs the red light at 660nm significantly different from 940nm where the deoxygenated blood absorbs infrared light. With this in mind, the gadgets are designed to emit the two light rays (red light and infrared light from) from LEDs. These are passed through the body tissues and absorbed by the data readings obtain includes the oxygen level in blood, the pulse rate and cardiovascular conditions.
Even with the same working principles, different models differ in a number of ways. Most significantly though, there are critical differences where your selection criteria should be based on. It is advisable that the rice or brand name should not be the first issues to consider, but rather go deep and find out about their working.
To start with, the model must be FDA approved. Given that pulse oximeter falls in the class II classification of medical gadgets, it must have FDA approval before it can be sold to the public. Presently, the greater part of them have FDA approval, but just for confirmation, it is advisable to run through the FDA medical Device Database, enter the model name or manufacturer name and get details regarding its approvals.
The most significant aspect however is to find out is the device is able to give very accurate and reliable readings at its specific working range. The role is to measure the oxygen saturation level in the blood tissue and the results are very useful. As such, your goal is to obtain the device that gives the best possible results. You can compare it with those used in medical facilities for its accuracy level.
The device should also be relatively easy to use. If possible, it should be used by all family members without having to struggle. In fact, the user manual alone should be enough to guide you through without having to involve an expert. It should also be of the size that comfortably work for the targeted end user, be it children or adults.
In addition to these, there are several other features that go a long way in assisting you make the right choice. These include its memory, Ability to connect to a computer or phone to allow for data access and analysis. The devices that have multi-person memory status are also considered deal since data for more than one person.
Other issues that should also put into consideration are the battery lifespan, the case for the device, its logbook, the ease of storage and general appearance among others. If all these are put into consideration, then the value for money is likely to be realized.
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