Infusion Pump

Infusion Pump Solutions from Texas Instruments

Block Diagram

Click on the colored blocks to view or sample recommended solutions


AC/DC Adaptor

Design Considerations

Infusion Pumps are an effective pathway for delivering fluid, blood, and medicants to a patient's vital organs. Since the entire blood supply in a human body completely circulates within 60 seconds, substances introduced into the circulatory system are distributed rapidly. An infusion device typically consists of three major components: the fluid reservoir, a catheter system for transferring the fluids into the body, and most importantly, a device that combines electronics with a mechanism to generate and regulate flow. This regulation of the drug concentration in the body to achieve and maintain a desired result is highly critical, especially if prolonged underinfusion or overinfusion takes place. Although underinfusion may not provide sufficient therapy, overinfusion can produce even more serious toxic side effects.

The infusion of drugs requires high flow rate accuracy and flow uniformity. Sensors can be used to count the number of drops passing through the drip chamber to provide flow feedback for automatic rate adjustment and to detect any downstream occlusions directly below the pumping mechanism. However, flow rate accuracy remains limited by the rate and viscosity of the drip as well as improper angulation if in motion. Flow uniformity can also suffer at low flow rates from the discrete nature of the drop detector. Despite these limitations, a processor with an advanced graphical user interface, smart and real-time physiological processing, and wired and wireless connectivity options for patient monitoring and data logging applications provides an additional level of safety by quickly detecting complications and generating an alarm.

One alternative to the drop sensor is a volumetric metering chamber. A pump with a stepper or servo-controlled dc motor can be used to provide the driving force for the fluid by mechanized displacement of the contents in the volumetric chamber. The stepping resolution along with the chamber elasticity can influence the flow uniformity. When the volume is not uniform over the mechanism's cycle, software control can be used to compensate for the variation.

Application Notes (1)

Title Abstract Type Size (KB) Date Views
HTM 9 KB 26 Jun 2008 477

User Guides (2)

Title Abstract Type Size (KB) Date Views
htm 8 KB 07 Jul 2010 727
htm 8 KB 20 Jan 2010 452
    

Reference Designs

Description Part Number Company Tool Type
CC1110EM 315MHz Reference Design CC1110EM315_REFDES Texas Instruments Reference Designs
CC1110EM 433MHz Reference Design CC1110EM433_REFDES Texas Instruments Reference Designs
CC2500 Reference Design (62 mil layer spacing) CC2500_REFDES_062 Texas Instruments Reference Designs
CC2500EM Reference Design CC2500EM_REFDES Texas Instruments Reference Designs
CC2511 USB Nano Dongle Reference Design CC2511NANO_REFDES Texas Instruments Reference Designs
CC2511 USB-Dongle Reference Design CC2511USB_REFDES Texas Instruments Reference Designs
CC2520EM Reference Design CC2520EM_REFDES Texas Instruments Reference Designs

Selection and Solution Guides

Selection Guides (2)

Title Abstract Type Size (KB) Date Views
PDF 9.09 MB 02 May 2013 3792
PDF 11.49 MB 05 Aug 2010 1250

Solution Guides (1)

Title Abstract Type Size (KB) Date Views
PDF 5.83 MB 26 Jan 2014 12506

Tools and Software

Name Part # Company Software/Tool Type
Code Composer Studio (CCS) Integrated Development Environment (IDE) CCSTUDIO Texas Instruments SW Development Tools, IDEs, Compilers

Product Bulletin & White Papers

Product Bulletin (2)

Title Abstract Type Size (MB) Date Views
PDF 208 KB 25 Apr 2011 941
PDF 208 KB 25 Jul 2008 304

White Papers (3)

Title Abstract Type Size (MB) Date Views
PDF 393 KB 27 Jun 2014 5870
PDF 98 KB 08 Apr 2013 776
PDF 1014 KB 17 May 2011 1040

News Releases & Authored Articles

Visit the News Center

Similar End-Equipment Solutions

TI End-Equipment

All TI End-Equipment Solutions

Support and Community

Wikis

Visit the TI Wiki

Training & events

Name Type Available During
TI's C553x DSPs - industry's lowest price and lowest power DSPs
TI's breakthrough price for DSPS extends sophisticated signal processing and ultra-low-power into new world of cost-sensitive apps
On-Line Training   On Demand  
TI's new $5 Sitara AM335x ARM(R) Cortex(TM)-A8 microprocessors
In this presentation you will learn about the features and capabilities of TI's new AM335x ARM Cortex-A8 microprocessor.
On-Line Training   On Demand  
Technical Overview of the Ultra-low power C5505
TI’s latest TMS320C5504/05 low-power DSPs provide energy efficieny and longer battery life for portable applications such as...
On-Line Training   On Demand  
Sensor Signal Conditioning and Interface for Medical
Explore the various sensor interface techniques and solutions available for medical applications.
On-Line Training   On Demand  
Market Drivers and Technology Enablers for Wireless Connectivity in Medical
This session will explore low power wireless technologies including Zigbee, 802.15.4, WLAN, RFID.
On-Line Training   On Demand  

See more training & events

Other Support