PS: I'm not sure that 60601-2-52 is OK for Obstetric aid table, see medical bed definition (60601-2-52 ?201.3.212):
"device for which the intended use is sleeping/resting that contains a mattress support platform and intended to assist in diagnosis, monitoring, prevention, treatment, alleviation of disease or compensation for an injury or handicap
Note 1 to entry: A bed-lift and/or a detachable mattress support platform in combination with a compatible nonmedical bed as specified by the manufacturer is also considered a medical bed.
Note 2 to entry: Excluded are devices for which the intended use is mainly for examination or transportation under medical supervision (e.g. stretcher, examination table)."
In this particular case, the applicability of the standard does not matter thattttt much.
From what the OP said, it seems he?s looking for verification testing, ways to verify that the device meets the requirements. So, if he has to verify that the patient will not fall from his chair, he would need to design a test for this requirement. There are some standards that already have a test like this, including 60601-2-52. As a good practice, he should evaluate if the test (which as you pointed out, was created based on a medical bed which is clear defined) can really be applied to his device, but probably it can be applied directly (or by changing some parameters, for example).
The high level idea on the discussion is that testing from a standard is simply nothing more than an verification test that you use to prove conformity to some requirement. Knowing the requirement, you need to choose the best way to verify it. Product standards are collections of possible testing and verification solutions, and they are easy to use because someone (the WG that created the standard) has already thought about the test. Otherwise the manufacturer would need to design the test itself. One of the main problems we have is that people usually blindly follow standards, without this background understanding of what a standard really is.
But again, as noted, it?s important to verify that the standard testing does fit the testing need. When creating ISO 24971, which has details on how to use standards with risk management, I remember a particular request from the FDA about a problem related to blind following standards and requirements that I also had experience noting - a lot of manufacturers were using tests which did not match the requirement - example, the particular testing was created for a patient with a maximum 100 kg. If your intended patient can have more that that weight, you could still use the testing principle, but would need to change the testing parameters (and, depending on the case, either change the testing itself, or not use the testing because changing the parameters would invalid the testing itself.
All in all, understand what you are doing and select the correct solution
