Insulin Pump Basics: Complete Guide to Pump Therapy
Discover everything you need to know about insulin pump therapy and whether it's the right choice for your diabetes management.

What is an Insulin Pump?
An insulin pump is a small, computerized device that delivers rapid-acting insulin continuously throughout the day and night. Think of it as an artificial pancreas that mimics the way a healthy pancreas would release insulin. Instead of multiple daily injections, the pump provides a steady flow of insulin through a thin tube called a catheter that's inserted under your skin.
How Insulin Pumps Work
Insulin pumps deliver insulin in two main ways:
Two Types of Insulin Delivery:
Types of Insulin Pumps
Traditional Tubed Pumps
These pumps consist of a small device (about the size of a pager) that's worn on your belt or in a pocket, connected to your body via a thin tube and infusion site. Popular models include the Tandem t:slim X2 and Medtronic MiniMed series.
Advantages:
- • Larger insulin reservoir (200-300 units)
- • Advanced features and programming options
- • Often integrates with CGM systems
- • Easier to troubleshoot
Considerations:
- • Tubing can get caught or kinked
- • More visible under clothing
- • Need to disconnect for some activities
- • Separate device to carry
Patch/Pod Pumps
These are tubeless systems where the entire pump adheres directly to your skin. The Omnipod system is the most popular example, consisting of a disposable pod that delivers insulin and a separate handheld device for programming.
Advantages:
- • No tubing to manage
- • Discreet and low-profile
- • Waterproof options available
- • Freedom of movement
Considerations:
- • Smaller insulin reservoir (200 units)
- • Entire unit replaced every 3 days
- • May be bulkier on the body
- • Limited programming options
Benefits of Insulin Pump Therapy
Improved Blood Sugar Control
Studies show that pump users often achieve better A1C levels and spend more time in their target glucose range compared to multiple daily injections.
Lifestyle Flexibility
Eat when you want, sleep in on weekends, or exercise at different times without being tied to a rigid injection schedule.
Precise Insulin Delivery
Pumps can deliver insulin in increments as small as 0.025 units, allowing for much more precise dosing than insulin pens.
Reduced Low Blood Sugars
The ability to adjust basal rates and suspend insulin delivery can significantly reduce the risk of hypoglycemia.
Advanced Features
Modern pumps offer features like CGM integration, automatic insulin adjustments, and smartphone connectivity.
Who is a Good Candidate for Pump Therapy?
Insulin pump therapy can benefit many people with diabetes, but it's especially helpful for those who:
- • Have difficulty achieving target A1C levels with injections
- • Experience frequent low blood sugars or severe hypoglycemia
- • Have irregular schedules or unpredictable meal times
- • Want more flexibility in their diabetes management
- • Are motivated to actively manage their diabetes
- • Are comfortable with technology and learning new devices
- • Have support from healthcare providers experienced in pump therapy
Important Considerations:
Insulin pump therapy requires commitment and education. You'll need to:
- • Check blood glucose or use CGM regularly
- • Count carbohydrates accurately
- • Learn to operate and troubleshoot the pump
- • Change infusion sites every 2-3 days
- • Have backup insulin and supplies available
Getting Started with Pump Therapy
Starting insulin pump therapy is a process that typically takes several weeks to months:
- Medical Evaluation: Your healthcare provider will assess whether you're a good candidate for pump therapy and help you choose the right system.
- Insurance Authorization: We'll work with your insurance company to obtain prior authorization and maximize your coverage.
- Pump Training: You'll receive comprehensive training on your chosen pump system, typically over several sessions.
- Initial Settings: Your diabetes team will calculate your initial basal rates, insulin-to-carb ratios, and correction factors.
- Close Monitoring: Frequent follow-ups during the first few weeks allow for fine-tuning of your pump settings.
- Ongoing Support: Regular check-ins ensure optimal pump performance and diabetes management.
Insurance Coverage for Insulin Pumps
Most insurance plans, including Medicare, cover insulin pumps when medical necessity criteria are met. Coverage typically includes the pump device, pump supplies (infusion sets, reservoirs), and insulin. Our team specializes in working with insurance companies to maximize your benefits and minimize out-of-pocket costs.
Ready to Explore Insulin Pump Therapy?
Our certified diabetes educators and pump trainers can help you determine if pump therapy is right for you and guide you through every step of the process.