Electrical access port assembly

• US 4,941,472 A
• Filed: 04/13/1989
• Issued: 07/17/1990
• Est. Priority Date: 04/13/1989
• Status: Expired due to Fees

• Current Assignee: Surgical Engineering Associates Incorporated
• Original Assignee: Surgical Engineering Associates Incorporated
• Inventors: Caldwell, Michael D., Moden, James R., Moden, Robert D.
• Primary Examiner(s): Cohen, Lee S.
• Assistant Examiner(s): GETZOW, SCOTT M
• Application Number:
  US07/338,232
• Time in Patent Office: 460 Days
• Field of Search: 128/419 PS, 128/785, 128/786, 128/734
• US Class Current: 607/33
• CPC Class Codes: A61B 5/6865 Access ports
• CPC Class Codes: A61N 1/05 for implantation or insertion into the body, e.g. heart electrode A61N1/06 takes precedence
• CPC Class Codes: A61N 1/372 Arrangements in connection with the implantation of stimulators

Abstract

An electrical access port assembly includes an access port unit which is surgically implantable in the body of a patient and a pair of conductive needles which are operative for supplying electrical energy to the access port unit. The access port unit includes a body portion having a pair of access openings therein, a pair of penetrable elastomeric septa in the access openings, and an interior partition which divides the interior of the body portion into a pair of enclosed interior cavities, each of which is accessible through one of the penetrable septa. The access port unit further icludes an electrical contact in each of the cavities and a conductor wire attached to each of the contacts. The septa of the access port unit are self-sealingly penetrable by the conductive needles to electrically connect the needles to the contacts in the cavities in order to supply electrical energy to a predetermined location in the body of the patient through the conductor wires.

Claims

1. An electrical access port assembly for supplying electrical energy to a predetermined location in the body of a patient comprising a surgically implantable body portion having first and second enclosed, electrically insulated interior cavities therein, said body portion including first and second penetrable septa which are self-sealingly penetrable to gain access to said first and second cavities, respectively, first and second electrical contact means in said first and second cavities, respectively, first and second insulated electrical conductor means electrically communicating with said first and second electrical contact means, respectively, said conductor means being surgically implantable in the body of said patient so that they extend to said predetermined location therein, and first and second electrically conductive needle means, each including an elongated electrically insulated shank portion and an electrically exposed tip portion, said first and second septa being self-sealingly penetrable by said first and second needle means, respectively, for electrically connecting the tip portions of said first and second needle means to said first and second contact means, respectively, without otherwise electrically connecting said first and second needle means to the body of said patient when said access port is surgically implanted in said patient.

3. In the access port assembly of claim 1, said body portion comprising a wall portion, said first and second septa being located in said wall portion.

4. In the access port assembly of claim 1, said body portion comprising a sidewall portion, said first and second septa being located in said sidewall portion.

5. In the access port assembly of claim 4, said septa being made of an elastomeric material.

6. A surgically implantable electrical access port comprising a surgically implantable body portion having first and second enclosed, electrically insulated interior cavities therein, said body portion including first and second self-sealingly penetrable septa, first and second electrical contact means in said first and second cavities, respectively, and first and second insulated electrical conductor means electrically connected to said first and second contact means, respectively, said first and second conductor means being surgically implantable in the body of a patient so that they extend to a predetermined location therein for effecting electrical communication between said first and second contact means and said predetermined location.

2. The access port assembly of claim 6 further comprising an interior partition in said body portion, said partition separating said first and second cavities and being substantially impenetrable by said first and second needle means.