초록 ▼

The invention relates to injection apparatus that is capable of operating continuously. According to the invention, the apparatus comprises two independent injection bottles (12) of at least one liquid that is to be injected into a patient via a tube, each of the bottles including means (51) for det

The invention relates to injection apparatus that is capable of operating continuously. According to the invention, the apparatus comprises two independent injection bottles (12) of at least one liquid that is to be injected into a patient via a tube, each of the bottles including means (51) for detecting that injection of the liquid contained in the bottle has terminated, which means control means (53) for interrupting the flow of liquid. The apparatus comprises upstream injection apparatus (10) having two feeder tubes (50) connected to respective bottles (12), and downstream injection apparatus (70) with pump means (72, 84) for pumping the liquid and connected firstly to the patient via a downstream tube (78) and secondly to coupling means (54). An application is performing perfusion prior to radiological examination using an X-ray or an NMR scanner.

대표청구항 ▼

[ We claim:] [1.] Injection apparatus capable of operating continuously, comprising:two independent injection bottle means containing at least one liquid to be injected into a patient;a downstream injection assembly comprising a downstream tube and pump means for pumping the liquid, said pump means

[ We claim:] [1.] Injection apparatus capable of operating continuously, comprising:two independent injection bottle means containing at least one liquid to be injected into a patient;a downstream injection assembly comprising a downstream tube and pump means for pumping the liquid, said pump means having a downstream end and an upstream end, said downstream tube connecting said pump means to said patient;an upstream injection assembly including a first feeder tube, a second feeder tube, and a first and a second link means each comprising a flexible and resilient tube, said first and said second link means being connected to said injection bottle means and connected respectively to said first and second feeder tubes;a single coupling means having a first inlet and a second inlet and one outlet connected to said upstream end of said pump means, said first and second feeder tubes being respectively connected to said first and second inlets of said single coupling means;a first and a second interrupter means, operatively coupled to said upstream injection assembly, for interrupting flow of the liquid from the associated injection bottle means to said respective first and second feeder tubes;a first and a second detection means, operatively coupled to said upstream injection assembly, each comprising an air detector for detecting termination of injection of the liquid contained in said associated injection bottle means; andcontrol means operatively connected to said first and second detection means and said first and second interrupter means, said control means being arranged to control one of said first and second interrupter means to interrupt flow to one of said feeder tubes when one of said first and second detection means detects that injection of the liquid contained in the associated injection bottle means has terminated and said control means being arranged to control the other of said first and second interrupter means to open flow from the other of said injection bottle means in order to automatically changeover from said one injection bottle means to said other injection bottle means.