An allergy testing technique for testing a patient for a plurality of substances includes a first member having a plurality of pik engaging portions arranged for selectively engaging respective piks for pricking or piercing the skin of a patient in use. A resilient compressible member is coupled to the...http://www.google.es/patents/US5605160?utm_source=gb-gplus-sharePatente US5605160 - Allergy testing apparatus with variably spaced test testing sites
Allergy testing apparatus with variably spaced test testing sites
