×

Implantable stimulation and drug infusion techniques

  • US 5,697,951 A
  • Filed: 04/25/1996
  • Issued: 12/16/1997
  • Est. Priority Date: 04/25/1996
  • Status: Expired due to Term
First Claim
Patent Images

1. An implantable system for infusing a fluid agent and providing electrical stimulation to a body using a source of fluid pressure and a source of electrical power both located external to said body, comprising:

  • an implantable housing defining a first surface and a second surface;

    a percutaneous fill port located adjacent said first surface;

    an antenna located inside said housing for receiving radio frequency power signals;

    means located inside said housing and coupled to said antenna for generating stimulation pulses from said radio frequency power signals received by said antenna;

    a catheter defining an outer surface, a proximal end, a distal end and a fluid lumen for transporting said fluid agent through said catheter, said catheter comprising at least one electrode for administering electrical stimulation to a predetermined portion of said body, at least one catheter conductor for transmitting said stimulation pulses to said at least one electrode and means for transporting said fluid agent from said fluid lumen to a predetermined portion of said body;

    a reservoir located inside said housing and adapted to hold said fluid agent at a pressure maintained by a supply of said fluid agent admitted through said fill port for transmitting said fluid agent from said fluid lumen in the absence of a source of fluid pressure inside said housing; and

    connector means for transmitting said stimulation pulses from said means for generating to said at least one catheter conductor and for transporting said fluid agent from said reservoir to said fluid lumen, whereby said fluid agent and said electrical stimulation are administered to said body in the absence of a source of fluid pressure or electrical power inside said housing.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×