초록 ▼

The present disclosure describes a system wherein a drug or other fluid to be delivered to a specific desired location within the body is stored in a reservoir that is directly displaced by a force to infuse the drug from the device into the patient. Several specific methods are used to displace the

The present disclosure describes a system wherein a drug or other fluid to be delivered to a specific desired location within the body is stored in a reservoir that is directly displaced by a force to infuse the drug from the device into the patient. Several specific methods are used to displace the reservoir, including, generally, hydraulic displacement, mechanical screw-type displacement, and spring force displacement of the fluid reservoir.

대표청구항 ▼

1. A method of infusing a drug to a specific desired location within a patient's body, comprising: implanting a first reservoir, a second reservoir situated directly adjacent the first reservoir, a third reservoir in fluid communication with the second reservoir, and a pump operatively connected bet

1. A method of infusing a drug to a specific desired location within a patient's body, comprising: implanting a first reservoir, a second reservoir situated directly adjacent the first reservoir, a third reservoir in fluid communication with the second reservoir, and a pump operatively connected between the second and third reservoirs within the patient's body, the second reservoir containing a working fluid; providing a supply of the drug in fluid communication with the first reservoir; operating the pump to transfer working fluid from the second reservoir to the third reservoir to increase the volume of the first reservoir and draw at least a portion of the provided supply of the drug into the first reservoir; and operating the pump to transfer working fluid from the third reservoir to the second reservoir to decrease the volume of the first reservoir and deliver at least a portion of the drug from the first reservoir and through an established fluid passageway extending between the first reservoir and the specific desired location within the patient's body.