Low-Cost, Rapid, Accurate, Pediatric Weight Estimate Device

Low cost, portable, rapid, accurate weight estimation for children 2 months to 16 years based on an objective mathematical model, calibrated against CDC population data which, by multiple criteria, is more accurate than competing methods.Companion FDA …
  • Low cost, portable, rapid, accurate weight estimation for children 2 months to 16 years based on an objective mathematical model, calibrated against CDC population data which, by multiple criteria, is more accurate than competing methods.
  • Companion FDA approved "Baby TAPE" is available for weight estimation in infants, pre-term - 3 months of age
  • Ideal for situations where a scale is not available such as in remote areas and trauma or emergency situations where timing is critical

Abstract

Background: Accurately estimating the weight of pediatric patients is important in drug dosing, resuscitation interventions, and nutritional assessments. In advanced economies and non-emergency situations, direct weighing is preferable but requires fixed equipment and adequate time. In developing countries, and in emergencies, limited time or resources require a weight estimation method that is rapid, accurate, simple and inexpensive. Several pediatric weight estimation methods exist, but often become increasingly inaccurate near domain edges, i.e. for older children or infants, and for children who are naturally stocky or extremely thin. A major source of inaccuracy is reliance on a single scale factor, such as overall length of the child, or reported age.

Children’s Mercy Hospital has developed a method and device to quickly estimate pediatric weights by combining two separate measurements. The “Mercy TAPE” allows rapid two-factor measurements, such as girth and long bone length, and directly displays the estimated weight with no need to consult ancillary numerical tables. Using statistical analysis of a CDC dataset, the device is calibrated for ages 2 months to 16 years, and by multiple criteria is more accurate than competing methods.

Website

https://cmh.flintbox.com/technologies/B90438B5AF594F6E96DBF3BBF62E156D

Advantages

  • Accurate, so less chance of wrong dosage or unnecessary intervention
  • Direct readout, so less training and time required, and less chance for error
  • Can be used while standing, sitting, or lying down

Potential Applications

  • Insert to packaging for medication
  • Can be separately calibrated for any large population of interest
  • Evaluations in Asia and West Africa confirm accuracy across diverse populations

Contact Information

Name: Marcia Molina

Email: mimolina@cmh.edu

Phone: 785-341-8112 (mobile)