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US 5,006,115 AGranted
Needle placement sensor
AssigneeMedtronic, Inc.
InventorRay S. McDonald
Life of this patent
Estimating the term…
Abstract
An implantable medical device having a main body, and a port in the main body for receiving a medical instrument percutaneously. A resilient dome is mounted in the device for communicating with the medical instrument, and for flexing from a first rest position to a second position after contact with the medical instrument. The dome provides an extra corporeal response signal resulting from the flexion of the dome from the first position to the second position.
Claims4
An implantable medical device comprising:
- a device body;
- port means in said device body for receiving a medical instrument percutaneously;
- and
- means, mounted in the device for communication with the medical instrument for flexing from a first rest position to a second position after contact with the medical instrument, and for providing an extracorporeal response signal resulting from the flexion from the first position to the second position.
1 more element
An implantable device comprising:
- a reservoir;
- means for receiving a needle for insertion of liquid in the reservoir;
- a dome mounted in the reservoir having a first rest position and a second depressed position, the dome designed for movement between the first and second position upon needle contact, the dome providing an audible response to the movement of the first to the second position.
Dependencies are inferred from the claim text.