The Tremipen® is switched on via a push to the button, after a measurement it switches off automatically.
The measurement process itself is performed in 30 seconds. Including the time to switch on the device and the preparation time of 5 seconds the whole process is performed in 40 seconds.
The Tremipen® is easy to use and nearly identical to the use of a clinical thermometer. The measurement is started via a push to the button; the Tremipen® provides a 5 seconds countdown to take a measurement position. A beep tone sounds, this indicates the start of the measurement. The Tremipen® is held with a loose grip for 30 seconds just like a regular pen. It is important to remain still during the measurement. After 30 seconds another beep tone sounds and the results are shown on the display; the Tremipen® switches off automatically. During the measurement process different icons lead through the single steps.
The Tremipen® is working with a customary AAA battery. Tremitas recommends the brand VARTA Industrial because all functions of the Tremipen® were tested only with this type of battery.
If the Tremipen® is used regularly, for two measurements per day, the battery will work for about 6 months.
Except from changing the battery from time to time there are no costs for maintenance of the Tremipen®. Though as a medical device the Tremipen® needs to be revaluated every two years. This service is offered by Tremitas; the service is settled separately.
Including the battery the Tremipen® weighs approximately 30 grams.
The lifespan of the Tremipen® is 8 years from date of purchase. The lifespan is not bound to warranty, the warranty is two years from date of purchase.
The Tremipen® was developed for the following diseases and symptoms:
The most common method for tremor assessment is through a trained neurologist by looking at the shaking hands. Also an EMG (electromyography) or an EMG-Accelerometer are used; these methods are only available in clinics or at doctor’s offices. Due to the long processing time they are not used very often.
Seen as physical process, shaking is a sequence of accelerations in the two- and three-dimensional dimension. The Tremipen® measures the force of the shaking (result stated in mG) and the velocity of shaking (result stated in Hz) – so the Tremipen® measures force and velocity of the accelerations that are caused by the tremor.
How often a measurement is made is an individual choice; the attending doctor can advise.
During a subjective assessment a human assesses the tremor via looking at the shaking hands. The tremor is then rated in a scale e.g. from 0-4. At the objective assessment of tremor, a sensor captures the parameters.
Yes, the Tremipen® is able to measure a tremor that is invisible to the human eye.
International organisations like the “International Parkinson and Movement Disorder Society” (MDS) determine that the regular and objective evaluation of symptoms of diseases like Parkinson’s Disease are not only possible but necessary (tremor is one of this symptoms).
Regular measurements of tremor give an overview of the course of disease. They also provide feedback for the chosen (medical) therapy. In diagnostic processes the Tremipen® can support the initial assessment of tremor.
We want to provide two references that are based on scientific data: The average tremor amplitude of a healthy human is approximately 3mG. We have additionally created two tables where we compare the Tremipen®’s results to international standards for a better understanding of the mG unit. The tables were generated from our own clinical trial. Also there are table for the frequency available. You can find these tables here
The time for measurements can be discussed with the attending doctor. Possible times of day are:
It is important that the measurement times are nearly the same for regular measurements; given that they can be compared more objectively.
It depends on the disease and the tremor type which position is the right one for a measurement but there are some standardized measurement positions:
For the Parkinsonian tremor the rest tremor position is the most common one (sitting, hands on the lap), for Essential Tremor the postural tremor position is common (sitting, hands extended forward). On any account a position should be chosen were the tremor is present. Which position is the right one for a patient can be discussed with the attending doctor.
The Tremipen® is held like a regular pen. Thumb and index finger rest on the grip recess, the middle finger supports the Tremipen® from below. Due to that it is possible to hold the Tremipen® with a loose grip.