Kit for injecting liquid into a patient and associated preparation method
AssigneePerouse Medical
InventorGildas Huet
Life of this patent
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Abstract
This kit includes an injection device comprising a needle having a free end pricked into a septum of an implantable chamber and an intermediate tubing connected downstream to the needle. The kit includes an upstream conduit having an upstream end connected to a liquid dispensing apparatus and a downstream end removably connected to the intermediate tubing. The pressure loss through the upstream conduit is greater than 25% of the total pressure loss taken between the upstream end of the upstream conduit and the free end of the needle, upon injecting liquid through the upstream conduit and the injection device.
Claims12
A kit for injecting liquid in a patient, comprising:
- an injection device with a needle, comprising a needle having a free end intended to be pricked into a septum of an implantable chamber comprising a hollow base body, the septum obturating the base body, and the chamber including a conduit for discharging fluid out of the base body;
- the injection device including an intermediate tubing connected downstream to the needle;
- an upstream conduit having an upstream end intended to be connected to a liquid dispensing apparatus and a downstream end removably connected to the intermediate tubing,
- characterized in that the pressure loss through the upstream conduit, taken between the upstream end and the downstream end, is greater than 25% of the total pressure loss taken between the upstream end of the upstream conduit and the free end of the needle, during injection of liquid through the upstream conduit and the injection device.
A method for preparing a kit for injecting liquid into a patient, with view to injecting liquid into an implantable chamber positioned in the patient, the implantable chamber comprising a hollow base body, a septum obturating the base body and a conduit for discharging liquid out of the base body,
- the method being of the type comprising the following steps:
- providing a needle injection device, the device comprising a needle having a free end intended to be pricked into the septum and an intermediate tubing connected downstream to the needle;
- providing an upstream conduit comprising an upstream end intended to be connected to a liquid dispensing apparatus and a downstream end intended to be removably connected to the intermediate tubing, so that the pressure loss between the upstream end of the upstream conduit and the downstream end of the upstream conduit is greater than 25% of the total pressure loss between the upstream end of the upstream conduit and the free end of the needle;
- and
- connecting the downstream end of the upstream conduit onto the intermediate tubing.
Dependencies are inferred from the claim text.