초록 ▼

Devices, systems and methods for delivering one or more drugs to one or more internal body locations (such as the cerebrospinal fluid) are disclosed. In various aspects, the systems and methods may involve catheters having infusion sections with permeable membranes and one or more valves that contro

Devices, systems and methods for delivering one or more drugs to one or more internal body locations (such as the cerebrospinal fluid) are disclosed. In various aspects, the systems and methods may involve catheters having infusion sections with permeable membranes and one or more valves that control flow to the infusion sections.

대표청구항 ▼

The invention claimed is: 1. A drug delivery catheter comprising:an elongated body comprising a proximal end and a distal end;a plurality of infusion sections located along the elongated body, wherein each infusion section of the plurality of infusion sections comprises a permeable membrane through

The invention claimed is: 1. A drug delivery catheter comprising:an elongated body comprising a proximal end and a distal end;a plurality of infusion sections located along the elongated body, wherein each infusion section of the plurality of infusion sections comprises a permeable membrane through which a drug passes during delivery;a valve located between the plurality of infusion sections and the proximal end of the elongated body, wherein the valve comprises a plurality of outlets;a plurality of lumens in the catheter, wherein each lumen of the plurality of lumens extends from one outlet of the plurality of outlets on the valve to one infusion section of the plurality of infusion sections, wherein each lumen extending from one outlet of the valve to one infusion section comprises a fluid volume, and wherein the fluid volumes of each lumen of the plurality of lumens are balanced.