Status: Need is Closed

Patient weight measurement system to be integrated into medical equipment / patient tables

Request Number

Point of Contact
Need was closed on
Aug 8

Siemens Healthcare is seeking a subsystem solution to be integrated into medical equipment (for example patient tables) which can measure or deduce the patient weight by either (1) complying with norm MID (Measurement Instruments Directive 2014/32/EU, “scale for medical purpose”)  or (2) not using gravitational effects.



Integrated measuring of the patient weight can support the medical staff and improve the workflow in the hospital.


Key success Criteria
  • Measuring patient weight from 50kg to 150kg
  • Complying with regulatory requirements for medical scales (Measurement Instruments Directive 2014/32/EU, “scale for medical purpose”)
  • Tolerance: +/- 2 kg on a weighted weight of 50 to 150 kg



  • Methods NOT based on gravimetric measurements (preferred)
  • Communication interface using standard protocol (preferable CANopen)
  • No display required


Possible Approaches
  • Measuring device could be mounted under/on/on top of or integrated into the medical devices.
  • Weight can be deducted by a system camera.
  • Weight information can be deducted by combining several sources of patient information.


Approaches not of Interest

Solutions not supporting any standard communication interface (information output via display only is not sufficient)


Due Date
Jun 29
Items to be submitted

We are looking for concise, non-confidential proposals. The proposal should:

  • Describe the technical approach
  • Include a description of the responding organization or team and their experience.

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Gallery Moderator(s)
Stephen Clulow
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