Accessory module for implantable fluid dispensing device

• US H150 H
• Filed: 08/03/1984
• Issued: 11/04/1986
• Est. Priority Date: 08/03/1984
• Status: Abandoned Application

• Current Assignee: Douglas O. Hankner, Larry A. Lundeen
• Original Assignee: Douglas O. Hankner, Larry A. Lundeen
• Inventors: Hankner, Douglas O., Lundeen, Larry A.
• Primary Examiner(s): Kyle, Deborah L.
• Assistant Examiner(s): Carone, Michael J.
• Application Number:
  US66/373,53
• Time in Patent Office: 823 Days
• Field of Search: 604093, 604131, 604151, 604167, 604181, 604182, 604891, 604892
• CPC Class Codes: A61M 5/14276 specially adapted for implantation

Abstract

An implantable fluid dispensing device has an accessory housing set into the biocompatible shape of its device canister. A shelf is set into the canister to accept the accessory housing which contains a filter, an externally accessible infusion septum, or other accessory. The function of accessories in the accessory housing is independently tested. After an accessory is selected to match the particular application, the accessory module is mounted on the canister.

Claims

1. An implantable fluid dispensing device comprising:

a sealed case having a smooth biocompatible curved surface;

the case having an indentation inwardly diverging from the curved surface; and

an accessory housing shaped to mount on the case in the indentation and shaped to conform generally to the curved surface.

2. The device of cla1m 1 further comprising:

fluid outlet means in the case for passing fluid from inside the case to outside the case;

fluid inlet means in the accessory housing for coupling to the fluid outlet means on the case when the housing is mounted on the case; and

second fluid outlet means on the accessory housing for passing fluid from within the accessory housing into a patient'"'"'s body.

3. The device of claim 2 further comprising filter means mounted in the accessory housing for filtering the fluid as it passes from the inlet means to the second outlet means.

4. The device of claim 2 further comprising:

port means on the accessory housing for receiving fluid to be passed through the accessory housing and out the second outlet means.

5. The device of claim 4 wherein the port means includes a pierceable septum for receiving fluid from a hypodermic needle inserted through skin of the patient.

6. An implantable fluid dispensing device comprising:

a sealed case having a fluid storage reservoir;

fluid outlet means on the case for passing fluid from the reservoir to the exterior of the case;

the case having a curved shape and having a shelf stepped in from the curved shape;

an accessory housing shaped to mount in the shelf and to conform generally to the external curved surface;

accessory fluid inlet means in the accessory housing for coupling to the fluid outlet means on the case and for passing fluid into the accessory housing;

filter outlet means in the accessory housing for passing fluid from the accessory housing into a patient'"'"'s body; and

filter means mounted in the accessory housing for filtering fluid passing from the accessory fluid inlet to the accessory fluid outlet.

7. The device of claim 6 further comprising an inlet port in the accessory housing for receiving fluid from outside the patient'"'"'s body.

8. The device of claim 7 wherein the inlet port includes a septum for receiving a hypodermic needle.

9. An implantable fluid dispensing device comprising:

a sealed case having a fluid storage reservoir;

fluid outlet means on the case for passing fluid from the reservoir to the exterior of the case;

the case being shaped with a biocompatible curved perimeter and having a shelf stepped in from the curved perimeter;

an accessory housing mounted on the shelf and shaped to conform to the curved perimeter;

an inlet port mounted on the accessory housing for injecting fluid into the housing; and

valve means for preventing fluid from the housing from passing into the sealed case.

10. The device of claim 9 further comprising filter means mounted in the accessory housing for filtering fluid as it passes through the accessory housing.

11. An accessory module for mounting on an implantable fluid dispensing device comprising:

an accessory housing formed of inert biocompatible plastic having one curved side shaped to contact the interior of the body in a non-irritating manner and a second side shaped to be inset in its fluid dispensing case;

accessory fluid inlet means mounted on the accessory housing for receiving fluid;

accessory outlet means mounted on the housing for dispensing fluid; and

an accessory mounted within the housing for processing fluid.

12. The device of claim 11 wherein the accessory is a filter for filtering fluid as it passes through the housing.

13. The device of claim 11 wherein the accessory is a port for receiving fluid from a source external to a patient'"'"'s body and a valve for preventing flow of fluid out of the accessory inlet port.