The term "respiratory machine" is a bit odd. I would use " a ventilator" and would not use "to help".
Student or Learner
The baby can't breathe by himself and needs respiratory machine to help.
The baby can't breathe by himself and needs respiratory machine.
Can we put "to help" at the end of sentence?
Exactly @MikeNewYork, there should be used "a ventilator" rather than "respiratory machine" where it is quite easy to understand this sentence that here baby isn't able to breathe by himself and needs a ventilator.
Welcome to the forum, lauren.
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As a non-medical person, I don't know the difference between respirator and ventilator.
If someone with the medical qualifications to explain the difference would do so, that would be great.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.
I don't think the word "respirator" as a synonym for "ventilator" is used much anymore. The reason is that respiration is a very complex physiologic process that includes taking in oxygen and other gases and the transfer of those gases across lung membranes. A machine cannot really do that. Ventilation more correctly describes the mechanical process of providing gases to the lung and taking away waste gases. Modern ventilators can also provide specialized processes such as "PEEP" (positive end expiratory pressure) and CPAP (continuous positive airway pressure). Both are designed to increase the gaseous exchange in the lungs by increasing the pressure of inhaled gases.
From a non-medical point of view, I would understand (as much as I need to) "The baby can't breathe by himself/on his own and has had to be hooked up to a machine."
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.