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Drug Delivery Apparatus and Method for Automatically Reducing Drug Dosage

a technology of automatic reduction and drug dosage, applied in the field of medical devices, can solve the problems of inconvenient and impractical administration of drug modification programs, and achieve the effect of reducing the dosage or detoxification rate more frequently, and reducing the dosag

Inactive Publication Date: 2008-07-17
INFUSION SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]The present invention relates to a drug delivery device which includes a fluid drug reservoir, a catheter, a controllable fluid transfer device, e.g., a pump or valve mechanism, and a drug delivery controller. The controller, e.g., a microprocessor, is operable in accordance with the invention, to automatically gradually reduce the rate of drug delivery specified by a stored delivery profile from a current dosage value to a targeted final dosage value.
[0010]The preferred embodiment also enables the clinician to alternatively specify a periodic (e.g., daily) dosage reduction rate thus enabling the system to then calculate the duration of the reduction interval (e.g., number of days).

Problems solved by technology

However, in the use of implanted drug delivery devices, patients typically visit their clinicians infrequently, e.g., once per month, and it has therefore been inconvenient and impractical to administer a drug modification program.

Method used

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  • Drug Delivery Apparatus and Method for Automatically Reducing Drug Dosage

Examples

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Embodiment Construction

[0019]Attention is initially directed to FIG. 1 which presents a generalized block diagram of a medical system 10 comprised of at least one medical device 14, e.g., an implantable drug delivery device and an external communication device or programmer 16. The system of FIG. 1 is configured to enable the medical device 14 and the programmer 16 to communicate, e.g., via RF telemetry 17, using telemetry subsystem 18 and telemetry subsystem 19, respectively contained within the devices 14 and 16. The medical device 14 will be assumed herein to comprise a pump implanted in a patient's body for the purpose of delivering a fluid drug to a body site. The programmer 16, on the other hand, is intended to be deployed external to the body and available for use by a physician or clinician or patient to transmit control and / or data signals to the device 14. For example, using the programmer 16, a clinician is able to produce signals which are transmitted via RF link 17 to the medical device 14 to...

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Abstract

A drug delivery device which includes a fluid drug reservoir, a catheter, a controllable fluid transfer device, e.g., a pump mechanism or valve, and a drug delivery control means. The drug delivery control means comprises a controller, e.g., a microprocessor or microcontroller which is operable to automatically reduce the rate of drug delivery over a certain reduction interval (e.g., multiple days) from an initial dosage value to a final dosage value.

Description

RELATED APPLICATIONS[0001]This application is a CIP of U.S. application Ser. No. 11 / 069,573 filed on 28 Feb. 2005 which is incorporated herein by reference. This application claims the benefit of U.S. Provisional Application 60 / 604,999 filed on 27 Aug. 2004 which is incorporated herein by reference.FIELD OF THE INVENTION[0002]This invention relates generally to medical devices for delivering a medication, or drug, to a body site at flow rates and times specified by a stored drug delivery profile. More particularly, this invention relates to such devices which can operate to automatically gradually modify rates of drug delivery to achieve a desired target dosage.BACKGROUND OF THE INVENTION[0003]Various implantable drug delivery devices are known in the art which can be programmed to deliver a drug to a body site for infusion at flow rates and times dictated by a stored drug delivery profile. Such delivery devices typically include a refillable reservoir for storing a fluid drug and a...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K9/22
CPCA61K9/0019A61K9/0024A61K9/0097A61M5/14276A61M2205/52A61M5/172A61M2005/14208A61M2205/3523A61M2205/3561A61M5/16827
Inventor SHELTON, BRIAN M.
Owner INFUSION SYST
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