Calibrated Obstetric Drape

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This calibrated under-buttocks drape folds out into a large sterile surface for delivery allowing measurement of blood loss in a calibrated pouch. The device is important in childbirth to determine when blood loss has passed 500 mL or 1000 mL and is classified as postpartum hemorrhage.

Properties include:

  • Sterile field
  • 2500 mL calibrated pouch
  • Flexible filter to screen out non-blood components

THE PROBLEM

Massive blood loss, hemorrhage, is the leading cause of death in the antenatal, peripartum and postpartum period. Women who are sick, undernourished or anemic face the risk of faster decline due to blood loss. Different strategies exist for measuring the amount of blood lost - however, they all typically yield an underestimate. In many settings, especially low-resource settings, visual estimation is used to determine the volume of blood lost. Studies have documented that even highly trained teams notoriously underestimate the amount of blood lost via visual estimation. Visual estimation is inaccurate - by as much as 50% - and risks delay of proper emergency action to be taken at 500mL.

The EMOTIVE trial, a randomized control trial, published in 2023, showed the fundamental importance of measuring blood loss continuously during childbirth. 

THE SOLUTION

This calibrated under-buttocks drape folds out into a large sterile surface for delivery.  The device allows for blood to be swept into a large calibrated pouch that indicates when the danger points have been reached (500 mL is the official definition for postpartum hemorrhage in many settings).  The obstetric drape comes in sterile packaging and folds out to a 1x1 meter sterile area for a woman to give birth. At the bottom of the sterile area is a pouch that holds more than 2500 mL of fluid, allowing for accurate measurement of postpartum blood loss. The pouch itself also includes a flexible plastic filter to ‘catch’ material that is not liquid.  The calibrated drape makes it easy to gather blood lost during childbirth and to measure the precise amount of blood lost in a 2500 mL of fluid pouch marked at 50 mL intervals.  

Dimensions of the folded and packaged drape: 12x8x.5 inches.


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This calibrated under-buttocks drape folds out into a large sterile surface for delivery allowing measurement of blood loss in a calibrated pouch. The device is important in childbirth to determine when blood loss has passed 500 mL or 1000 mL and is classified as postpartum hemorrhage.

Properties include:

  • Sterile field
  • 2500 mL calibrated pouch
  • Flexible filter to screen out non-blood components

THE PROBLEM

Massive blood loss, hemorrhage, is the leading cause of death in the antenatal, peripartum and postpartum period. Women who are sick, undernourished or anemic face the risk of faster decline due to blood loss. Different strategies exist for measuring the amount of blood lost - however, they all typically yield an underestimate. In many settings, especially low-resource settings, visual estimation is used to determine the volume of blood lost. Studies have documented that even highly trained teams notoriously underestimate the amount of blood lost via visual estimation. Visual estimation is inaccurate - by as much as 50% - and risks delay of proper emergency action to be taken at 500mL.

The EMOTIVE trial, a randomized control trial, published in 2023, showed the fundamental importance of measuring blood loss continuously during childbirth. 

THE SOLUTION

This calibrated under-buttocks drape folds out into a large sterile surface for delivery.  The device allows for blood to be swept into a large calibrated pouch that indicates when the danger points have been reached (500 mL is the official definition for postpartum hemorrhage in many settings).  The obstetric drape comes in sterile packaging and folds out to a 1x1 meter sterile area for a woman to give birth. At the bottom of the sterile area is a pouch that holds more than 2500 mL of fluid, allowing for accurate measurement of postpartum blood loss. The pouch itself also includes a flexible plastic filter to ‘catch’ material that is not liquid.  The calibrated drape makes it easy to gather blood lost during childbirth and to measure the precise amount of blood lost in a 2500 mL of fluid pouch marked at 50 mL intervals.  

Dimensions of the folded and packaged drape: 12x8x.5 inches.



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