Hi, I am using the Pulse engine in unity and am trying to create an initial state for my patient with specific Heart rate and blood pressure for a simulation. I have been trying to amend one of the existing JSON files(in Data/States), and while things do change on the monitor they do not show what I want(nor what I appear to be specifying). I work in a hospital but am non clinical! Any help would be much appreciated.
Thanks
Use the Pulse Explorer to create your states for your Unity application
Thank you, are there are tutorials for how to do this please? Sorry I am struggling to get this set up.
There are some videos and tutorials on that linked page for getting started
What patient values are you targeting?
Thanks, I will take a look at those and see if I can figure it out! We are creating a major haemorrhage simulation and we want the patient to start with Heartrate and blood pressure
120 and 80/40 and end with 88 and 110/60. I am using the pulse engine driver script
You have to think of a Pulse patient as a real person
The start of the patient, in Pulse, refers to the heathy/baseline physiology
You should not set the baseline patient parameters to values you expect to see from the injury.
You can look here at the ranges and limitations of what heathy/baseline means for Pulse
So you need to start somewhere within these ranges..
Default HR = 72 and Default BP = 114/73.5
You then need to do something to the person to get them to the vitals you are targeting.
I believe you want to hemorrhage your patient to a point where their HR = 120 and their BP is 80/40… How would you get a person to those vitals through a hemorrhage?
Do you have an idea of where the hemorrhage is coming from and at what rate?
So I loaded the StandardMale@0s state, gave the patient this hemorrhage and simulated for about 16 minutes and got to these vitals (You can uncheck the Real-time Lock control and it should only take a few minutes to get to this point)
This is pretty close to your target. It’s really hard to prescribe exact values for Pulse to achieve as Pulse tunes itself to the individual specified patient physiology which can lead to different values for the same set of actions. For example, if the StandardFemale@0s will simulate to different values given this exact same hemorrhage since Pulse will tune itself specific the her heathy baseline physiology parameters.
You can vary the hemorrhage location and severity to get more targeted values if you want.
But once you are there, you can just pause the simulation, apply the Serialization action shown in the image, and unpause to create a state you can use in your Unity application.
I believe you will want to expose some actions for your application user to provide interventions to the patient from this state to get them to a more stable state. How do you want the user to intervene to somehow to bring the patient to HR = 88 and a BP = 110/60
Is that through an IV? Drugs? Both?
You can load the generated state in the explorer and experiment with various interventions to see how easy/hard that is before you move to your application.
That’s great thanks, it was the bit about how to save the state I was struggling with and once I have updated the Pulse engine in Unity I have got it to work. In this scenario the actions to stabilize the patient would be to give them blood I can’t see this under actions.
Substance Compound Infusion