Copyright 2003, Insulin Pumpers and Eric Schmidt <email@example.com>
|| Disetronic H-TRON Plus|
The Disetronic H-TRONplus is similar to its predecessor the H-TRON V100 with some additional software features and minor cosmetic changes. The H-TRONplus pump supports one basal program with 24 hourly basal rates, temporary basal settings, and normal and audio boluses. The two recessed buttons on the top provide good tactile feedback for programming audio boluses through clothing. The pump has an LCD display on the front, which is used to display information and indicate the current pump mode. Features are programmed using "function-direct" programming which does not involve menus or directories, but rather certain button sequences. It does not directly incorporate some advanced features such as multiple basal profiles and extended bolus, although other offerings from Disetronic provide additional features.
When purchasing the H-TRONplus, you actually receive two H-TRONplus pumps from Disetronic. One can serve as a backup while the other is in use in case of a failure, and it is recommended that the pumps are periodically rotated (the backup becomes the primary).
Technical Specification Details
3.3 x 2.12 x 0.75 inches
- Physical Delivery Mechanism
DC motor with removable lead screw (lead screw is connected to insulin cartridge before inserting into pump).
Automated using pump motor. Priming is performed with the pump in "Stop", or suspended mode using a button press sequence. Each prime forces 20 units of insulin through the tubing. Depending on the length of tubing used, multiple prime procedures may be required.
- Battery Type
The Disetronic H-TRONplus uses two proprietary battery packs. There is a separate low batter alarm for each battery pack and they can be replaced independent of each other.
- Cartridge Type and Capacity
Proprietary glass or plastic with 3.15 ml capacity (315 units of U-100). 1.5 ml "short fill" is also possible with same cartridge.
- Water Resistance
Splash-resistant, although manufacturer recommends avoiding any contact of the pump with water. Conforms to IEC60529 IPX7 standard as long as case is not damaged and batteries are properly inserted.
Four year warranty. Two pumps are provided... each pump has two years of use programmed in at the factory (timer counts down while batteries are
inserted, which means batteries of backup pump should be removed when not in use). Each pump must be sent in for a technical inspection after the two years of use.
- Basal Programming Options
The H-TRONplus supports a single basal profile. Basal rates can be programmed from 0.1 units to 10.0 units per hour, in 0.1 unit increments (the maximum hourly basal rate limit can be raised or lowered at the factory if requested).
To program the basal profile, you explicitly set the rate for each hour of the day instead of setting up separate "segments" with start and stop times. Rates changes can only occur once an hour, on the hour.
So, for instance, you would set the rate for 00:01 (midnight to 01:00), then proceed to set the rates for 01:02 (01:00 to 02:00), and so forth up to 23:24 (23:00 to midnight).
- Temporary Basal Rate
The temporary basal settings can be programmed as a percentage of the current basal rate, and is effective for a fixed amount of time determined by a factory programmed setting.
A temporary basal decrease can programmed to lower the active basal profile from 90% of current basal down to 0% (which would mean no basal insulin delivery) in 10% increments. By default, temporary decreases last for 4 hours or until canceled.
Temporary basal increases can programmed to raise the active basal profile from 110% up to 200% in 10% increments. By default, temporary increases last for 12 hours or until canceled.
- Bolus Programming Options
Bolus programming is the same for "Normal" and "Audio" modes... audio feedback is given in each case. One of the top buttons is pressed to activate bolus programming, and then each subsequent button press increases the bolus amount by 0.5 units. Hitting the opposite button zeros the bolus. By default, once the user stops incrementing the bolus the pump will beep once for each 0.5 units to verify the programmed amount. Once this is done, it goes ahead and delivers the bolus. Due to the location and configuration of the buttons, this procedure is easy to do without removing the pump from a concealed location (such as a pocket).
No extended bolus capability is explicitly provided, although if desired this can be simulated by using a higher temporary basal setting (which would most likely require reprogramming the hourly basal max at the factory to have it raised from 10 Units).
- Remote Control
- User Interface and Display
Front LCD screen is used for viewing data and programming pump. Three buttons, two along the top edge and one on the front, allow the user to access pump functions. The top buttons can be easily located and depressed through clothing due to their recessed configuration, which can be handy for things like the audio bolus feature.
With pump in "Run" mode, the main screen displays the time and current basal rate. Using the "S" button, the user can display the amount of insulin remaining, the total amount of insulin delivered since midnight, the last 10 boluses (with times), and the last 10 alarms (with times).
- Vibrating Mode
- Child Lock Mode
- Warnings and Alarms
- 01: Empty Cartridge
- 02: Low Motor Battery
- 03: Low Electronic Battery
- 04: Occlusion
- 05: Bolus Limit Reached
- 06: Automatic Off
- 07: System Alarm
- 8X: Technical Inspection Alert
- 09: Technical Inspection Due
- 10: Cartridge Low Warning
- 11: End of Temporary Basal Rate
Last 10 boluses with time, last 5 alarms with time.
- Automatic OFF
This feature will alarm and suspend the pump if no buttons have been pressed for the programmed time limit. That limit can be set from 1 hour to 24 hours in 1 hour increments.
When you purchase the H-TRONplus pump, Disetronic actually sends two pumps. Each has 2 years of life programmed into them. If they are switched off periodically, this will give the user a backup pump to use in case there is a failure with the primary pump.