초록 ▼

An implantable drug delivery apparatus for delivering a drug into a bodily fluid in a body cavity of a patient over a period of time, which includes a hollow member that defines at least one lumen for facilitating a unidirectional recirculating flow of a therapeutic fluid through the lumen. The flui

An implantable drug delivery apparatus for delivering a drug into a bodily fluid in a body cavity of a patient over a period of time, which includes a hollow member that defines at least one lumen for facilitating a unidirectional recirculating flow of a therapeutic fluid through the lumen. The fluid can contain a bodily fluid, such as, for example, perilymph, and a drug. The apparatus also includes a pump, for example a single unidirectional pump, to control the flow rate of the therapeutic fluid through the hollow member, and an interface member in communication with at least one lumen of the hollow member. The device thus allows for the controlled delivery of the therapeutic fluid to a predetermined location in the bodily cavity of the patient, such as, for example, a cochlea of a human ear.

대표청구항 ▼

What is claimed is: 1. A drug delivery apparatus for delivering a drug into a bodily fluid in a body cavity over a period of time, the apparatus comprising:a hollow member defining at least one lumen for facilitating a unidirectional recirculating flow of a therapeutic fluid therethrough,a cannula i

What is claimed is: 1. A drug delivery apparatus for delivering a drug into a bodily fluid in a body cavity over a period of time, the apparatus comprising:a hollow member defining at least one lumen for facilitating a unidirectional recirculating flow of a therapeutic fluid therethrough,a cannula in fluid communication with the hollow member for facilitating bidirectional fluid flow through a lumen of the cannula to and from the bodily cavity; anda pump for controlling a flow rate of the therapeutic fluid through the hollow member, thereby alternately delivering fluid from the hollow member to the bodily cavity through the lumen of the cannula and drawing bodily fluid from the bodily cavity into the hollow member through the lumen of the cannula.