The number of compensation claims by patients suffering from complications caused by a controversial surgical mesh is increasing.
The Labour Party has obtained figures showing 466 cases were put before ACC to the end of June last year.
The mesh implants - used for the treatment of pelvic organ prolapse, stress incontinence and hernia repair - can cause complications such as infection and injuries to organs.
Labour's Annette King said the medical safety regulator, Medsafe, appeared to be at odds with the ACC on the effectiveness of the device.
"What I find is the joined up thinking between a lot of claims going into ACC and being accepted for a medical device.
"So why would we have one agency accepting ACC claims while we continue with the use of a product that is leading to ACC claims? It doesn't make sense to me."
Medsafe had declared the mesh safe, as long as it was used in line with the manufacturers' instructions, but was continuing to monitor formal medical reports of it harming people.