Medical system

• US 6,464,671 B1
• Filed: 03/21/2000
• Issued: 10/15/2002
• Est. Priority Date: 04/28/1999
• Status: Expired due to Fees

• Current Assignee: Jan Skansen, Sten-Olof Elver
• Original Assignee: Jan Skansen, Sten-Olof Elver
• Inventors: Skansen, Jan, Elver, Sten-Olof
• Primary Examiner(s): Casler, Brian L.
• Assistant Examiner(s): RODRIGUEZ, CRIS LOIREN
• Application Number:
  US09/532,522
• Time in Patent Office: 938 Days
• Field of Search: 604/131, 604/140, 604/141, 604/151, 604/153, 604/200, 604/890.1, 604/891.1, 604/892.1, 604/93.01, 604/502, 604/500, 604/67, 604/148, 604/288.01, 604/288.02, 604/288.03, 604/288.04, 128/DIG.12
• US Class Current: 604/288.01
• CPC Class Codes: A61M 2205/0244 Micromachined materials, e.g. made from silicon wafers, microelectromechanical systems [MEMS] or comprising nanotechnology
• CPC Class Codes: A61M 2209/045 for filling, e.g. for filling reservoirs
• CPC Class Codes: A61M 5/1413 Modular systems comprising interconnecting elements
• CPC Class Codes: A61M 5/14276 specially adapted for implantation

Abstract

Implantable drug delivery system comprising a reservoir module provided with a drug reservoir and a drug expelling means arranged to expel a drug from said drug reservoir, and a dispenser module comprising drug delivery means having a predetermined number of drug delivery openings for delivering a drug, received from said drug reservoir, to tissue. The modules are physically separate parts and the reservoir module is provided with a first connecting means and the dispenser module is provided with a second connecting means, wherein, at the time of implantation, the modules are adapted to be connected together by the first and second connecting means.

Claims

1. Implantable drug delivery system comprising a reservoir module provided with a drug reservoir and a drug expelling means arranged to expel a drug from said drug reservoir to a dispenser module for delivering the drug to tissue, characterized in that said modules are physically separate parts and that said reservoir module is provided with a first connecting means and said dispenser module is provided with a second connecting means, wherein, at the time of implantation, said reservoir and dispenser modules are adapted to be connected together by said first and second connecting means.

2. System according to claim 1 characterized in that said first connecting means comprises a reservoir nipple and that said second connecting means comprises a connecting nipple wherein the reservoir module supplies said dispenser module with the drug liquid via said nipples.

3. System according to claim 1 characterized in that said reservoir module comprises drug supplying means adapted to be coupled to the dispenser module in order to supply the dispenser module with the drug from the reservoir module.

4. System according to claim 1 characterized in that said dispenser module is provided with a predetermined number of drug delivery openings, wherein said predetermined number is at least two.

5. System according to claim 4 characterized in that the openings of the dispenser module are arranged on the part of the dispenser module adapted to be in contact with tissue.

6. System according to claim 4 in that the openings of the dispenser module are arranged along the periphery of the dispenser module.

7. System according to any of claim 4 in that said predetermined number of delivery openings is four.

8. System according to any of claim 4 in that said predetermined number of delivery openings lies in the interval 10-30.

9. Method of administrating a drug liquid to a patient using an implantable drug delivery system according to of claim 1 characterized in that said method comprising the following steps:

i) choosing a dispenser module and a reservoir module having predetermined characteristics depending on the prescribed therapy of the patient;

ii) connecting the chosen modules to each other;

iii) implanting the system at a patient location where the drug should be administrated.

10. Method according to claim 9 characterized in that said method further comprising the following step:

iv) filling or refilling the reservoir module with a drug liquid when necessary.