Loading AI tools
Insulin pumps From Wikipedia, the free encyclopedia
MiniMed Paradigm is a series of insulin pumps manufactured by Medtronic for patients with diabetes mellitus. The pump operates with a single AAA battery and uses a piston-plunger pump to infuse a programmed amount of insulin into the patient through a length of tubing. The Paradigm uses a one-way wireless radio frequency link to receive blood sugar measurements from select glucose meters. The Paradigm RT (Real Time) series adds the ability to receive data from a mated continuous blood-glucose monitor. Although the pump can use these measurements to assist in calculating a dose of insulin, no actual change in insulin delivery occurs without manual user-intervention. [1][2]
This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages)
|
In the United States, the device is regulated by a branch of the Food and Drug Administration.[3]
Insulin pumps are drug delivery devices used to treat patients with type 1 and type 2 diabetes. The Minimed Paradigm REAL-Time and Continuous Glucose Monitoring (CGM) system, which received FDA clearance in 2006, uses tubing and a reservoir with rapid-acting insulin. This "infusion set" is patient-connected via a catheter to the abdomen region. The infusion set can remain in the place for three days while the pump is clip-belt worn. There is a quick-disconnect feature for the tubing. The pump delivers insulin in two modes. In basal rate mode, the delivery is continuous in small doses similar to a pancreas, for example 0.15 units per hour throughout the day. Basal rates are set to meet individual metabolic rates. In bolus mode, the delivery is programmed to be a one-time delivery prior to eating or after an unexpected high, for example 18 units spread out to several hours. This type of continuous treatment is in contrast to traditional multiple daily injections (MDI) that use slower-acting insulin. Continuous treatment reduces glucose variability.[4]
The Paradigm system consists of two basic parts: an insulin pump and an optional glucose sensor CGM worn for up to three days. The disposable sensor is subcutaneously-placed to make glucose measurements[5] in interstitial fluid every five minutes and transmit the reading via low power radio frequency (ISM band) to the pump for realtime display. However, insulin therapy may be conducted without CGM and although there is not yet an automated insulin-regulation feedback mechanism between measure and infusion to control the amount and timing of insulin, this is clearly a future objective. Any change in basal or bolus is patient-driven by programming the pump using the Bolus Wizard. The latest model pumps are the MiniMed Paradigm 522 and 722, which differ in reservoir size, 176 versus 300 units, respectively. In 2007 the FDA approved a pediatric model for patients 7 to 17 years old.[6]
The development history of the Minimed pump goes back to the 1980s.[7]
The Food and Drug Administration has at least six classifications for the various parts of the Minimed Paradigm System.
Product code | Generic part name | Regulation number | Device classification code | Description |
---|---|---|---|---|
MDS | CGM | null | Premarket approval[10] | Invasive glucose sensor |
FMF | Drug reservoir | 21CFR888.5860[11] | standards | Piston syringe |
NBW | Glucose meter | 21CFR862.1345[12] | standards | Glucose test system |
LZG/FRN | Infusion/insulin pump | 21CFR888.5725[13] | standards | Infusion pump |
FPA | Infusion set | 21CFR888.5440[14] | standards | Intravascular administration set |
KZH | Infusion set insertion system | 21CFR880.6920[15] | standards | Syringer needle introducer |
Competitive devices include Deltec Cozmo, Animas Ping, Tandem Diabetes Care, Inc., Insulet OmniPod, Accu-chek Spirit Combo, and Sooil DiabecareIIS.[16]
Currently, Medtronic has the following research and development projects in its pipeline: Next Generation REAL-Time Continuous Glucose Monitoring System; Next Generation Insulin Pump; Pre-filled Insulin Reservoirs; Implantable Insulin Pump; and Artificial pancreas (Semi-Automated System & Closed-Loop System).[9] The industry trend in portable devices has piggybacked on the success of wireless technology[17] but not on the success of other disciplines, such as dynamical system, Cybernetics and adaptive systems, for root cause solutions
This article appears to contain a large number of buzzwords. (August 2022) |
to close the "true" loop.[18] While the slow-responding dynamics in the physiology of glucose regulation is not beyond the mathematics of PID controllers, 50 years of patient-perspective "advancement" says it is beyond the corporate, congressional, and lobbying leaders. Also, the accuracy of existing continuous glucose monitoring systems poses a problem for an artificial pancreas.
{{cite journal}}
: CS1 maint: multiple names: authors list (link){{cite journal}}
: CS1 maint: multiple names: authors list (link){{cite journal}}
: CS1 maint: multiple names: authors list (link){{cite journal}}
: CS1 maint: multiple names: authors list (link)Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.