Device for injecting medicinal solution into patient, has lateral flaps articulated on needle holder and means for generating overpressure in injection pipe during needle extraction

摘要

#CMT# #/CMT# The device has a needle holder (24) carrying an injection needle (26), and an injection pipe (28) connected to the needle. An extraction unit (30) extracts the needle out from a patient, and a generation unit (32) generates an overpressure in the pipe. Lateral flaps (31) are articulated on the holder and activate the generation unit during the extraction of the needle in order to create an overpressure in the pipe. #CMT#USE : #/CMT# Used for injecting a liquid e.g. medicinal solution, in an organ e.g. chest, vein and artery of a patient (claimed). #CMT#ADVANTAGE : #/CMT# The lateral flaps activate the generation unit during the extraction of the injection needle in order to create overpressure in the injection pipe, thus avoiding backward flow of blood or body fluids in a medicinal solution transporting pipe during the extraction of the needle, hence avoiding coagulation of the blood in the transporting pipe, thus eliminating the need for frequent replacement of an implantable chamber which is connected to the device. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a partial perspective view of a liquid injecting device. 24 : Needle holder 26 : Injection needle 28 : Injection pipe 30 : Extraction unit 31 : Lateral flaps 32 : Pressure generation unit 34 : Curved free end.