A pulse oximeter is a noninvasive medical device or noninvasive measurement instrument that measures the oxygen saturation in a patient’s blood and pulse rates. These devices are very convenient and useful as they can be used with no trouble anytime and anywhere. This particular model is known as the portable pulse oximeters.
These are clipped to a translucent part of a patient’s body which can be usually a finger or earlobe, a photodiode is faced with a pair of small light-emitting diodes, cafebarhetzwaantje which has two different wavelengths. One LED is an infrared and the other is red. Absorption at the said wavelengths differs a lot between oxygenated and deoxygenated blood, thus, making it possible to calculate the ratio between the two. The most widely used types of are the finger pulse oximeters which are attached to the fingertip.
The major reason of applying these is that this device reads the current amount of oxygen present in blood by placing the sensor over the fingertip (or sometimes the earlobe). The exact reading will indicate whether you need to stop your activity, or to have supplemental oxygen. Earlier, doctors mainly had to rely on their clinical eye for the judgment, diagnosis, and evaluation of various medical conditions of the patient.
This was a major concern as some symptoms may noticeable already at the late stages of the disease, especially with problems regarding respiration. When patients breathing becomes weaken, arterial blood oxygen levels may quickly fall and deficiency of oxygen may be dangerous and would definitely put patients at risk. In the past, there were only a few tools that could help out them in examining patients, but fortunately, with the advancement of medical technology, these helps doctors to diagnose and treat diseases more effectively.
Pulse oximeter is attached to the finger and from there it receives the blood oxygenation and pulse rate reading. These have become very handy as they are portable and efficient to use, thus, making these the most common among its types. Another type is one that is the handheld oximeter. These are models which basically involve the use of a probe. This probe is normally attached, using a special cord, to a unit. When testing, place the probe to your earlobe or finger and then switch on the oximeter.
There are basically four types of these devices which are made to cater to one’s medical needs, these are fingertip, wrist, handheld and tabletop models.
1. Fingertip: Fingertip pulse oximeter, clips onto a patient’s finger, and comes with a tiny computer and screen. This type is very light and portable and will be easy to store in your pulse or pocket. The clip emits light from one side and measures the light on the other. Its computer is further used to measures the light over several pulses and gives readout of the patient’s blood-oxygen level. Merely slip the device on your finger and wait for the readings to display on the screen on the face of the fingertip pulse oximeter. This particular type is very easy to operate and is often used at home. The only disadvantage of this type is if the patient’s hand is damaged or his blood flow is slow because of a clot or injury, it may not give an accurate reading or it may not work at all.
2. Wrist: This type is very comfortable as it can be made to wear they like a watch and the sensor is slid onto a finger. A small wire is attaches the two components and these wrist oximeters are used for continuous monitoring and are very popular in sleep centers. These devices are capable in storing up to 24 hours of reading which can be afterward download to a computer.
3. Handheld: The handheld type is generally used in almost every hospital. This type is also similar to the fingertip device but has a more versatile clip that connects with a cord to a computer. Similar to as the fingertip, this type uses light to measure the blood’s hemoglobin and clips to patient’s fingertip or earlobe. This device is vital in cases where a patient’s extremities are compromised and may not have full blood flow. Since the earlobe clip is so close to the brain, it is rare to have compromised blood flow. Hence in emergency situations handheld oximeter is clipped to a patient’s toe which is also recommended by medical practitioners.
4. Tabletop: Unlike its various models this particular type is not portable but again have more sensors and features geared toward continuous monitoring. They also can incorporate other monitoring tools such as blood pressure.
With having one of these devices, there’s no need for a trip to the medical office or waiting for a nurse or other health practitioner to make an expensive call at your home.
For more information on Life Saving Pulse Oximeters please visit our website.