Thank you for your question and I'm very sorry to hear about your injury.
The statute of limitations for a medical malpractice claim such as the one you are relating begins at the time when the incident happened. So in your case, the statute of limitations has already run. You can argue that it should not run until you "discovered" that there was a potential misdiagnosis issue. However, that runs on a "reasonable person" standard. Thus, you would have to show that a reasonable person would not have discovered the medical malpractice sooner. This will be a hard standard to meet in your case, as the situations which qualify are often referring to hidden misdiagnosis, which are not discovered until later at a routine medical check, etc.
In regard to your second injury, it is possible to claim medical malpractice for this type of incident if you can prove that the doctor who performed the catheter insertion did so in a negligent manner. Your claim must be supported by a doctor's expert opinion that the procedure was performed negligently. It is best to consult with a local medical malpractice attorney who generally employ doctors who can issue a preliminary opinion as to whether there is negligence
which would justify a claim.
In the claim, you would sue the doctor directly, and probably the facility too. However, the primary responsibility lies on the doctor.
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