[Problem] To provide a medical-use pump capable of detecting that the tip of a needle has become dislodged from within a blood vessel (needle dislodgement), and reliably warning a health care professional. [Solution] The invention is a medical-use pump for delivering medication through an infusion tube (200) and the tip of a needle attached to the infusion tube to within a blood vessel of a patient, the medical-use pump being provided with: a drive motor (61) which delivers the medication through the infusion tube and the needle an occlusion sensor (53) which detects occlusion pressure of the infusion tube when delivering the medication a control unit (100) which, by way of the occlusion pressure of the infusion tube obtained from the occlusion sensor (53), in a case in which the occlusion pressure has suddenly risen by greater than or equal to a threshold, determines that the tip (197) of the needle (172) has been dislodged from within the blood vessel (198) and is positioned outside the skin and warning means (130, 131, 132) which issue a warning by way of an instruction of the control unit if the occlusion pressure suddenly rises or suddenly falls by greater than or equal to the threshold.[Problème] Fournir une pompe à usage médical capable de détecter que la pointe dune aiguille sest délogée de lintérieur dun vaisseau sanguin (délogement de laiguille), et davertir de manière fiable un professionnel des soins de santé. [Solution] Linvention est une pompe à usage médical pour administrer un médicament à travers un tube de perfusion (200) et la pointe dune aiguille attachée au tube de perfusion à lintérieur du vaisseau sanguin dun patient, la pompe à usage médical étant pourvue de: un moteur dentraînement (61) qui administre le médicament à travers le tube de perfusion et laiguille un capteur docclusion (53) qui détecte une pression docclusion du tube de perfusion quand il administre le médicament une unité de contrôle (100) qui, par la pression docclusion du tube
