Modular implantable medical device

摘要

The present invention is an implantable medical device that is used deliver materials or energy into a patient's physiology, or from one region of a patient's physiology to another. The device includes a port element with a passageway therethrough for directing and anchoring a conduit element in a desired location. The implantable port stabilizes an elongated conduit within human physiology for long-term use, and includes a support passageway formed through the port and extending between an upper surface and a lower surface of the port, wherein the support passageway is sized and shaped for receiving the elongated conduit slideably inserted therethrough. The device includes a tissue ingrowth scaffold fixedly disposed on at least a portion of at least one surface of the implantable port for positioning in contact with adjacent tissue.

主权项

1. A medical apparatus comprising an implantable port for implanting in a subcutaneous pocket below a skin surface and a modular conduit assembly mated with the port wherein:
the implantable port comprises a port passageway with a passageway side wall formed completely through the port between a skin-facing port surface and a second port surface, and with a tissue ingrowth scaffold disposed along at least one of the port surfaces; and, the modular conduit assembly comprises: a proximal conduit, sized to achieve a slidable fit with the passageway side wall and to extend proximally and distally from the implantable port, and having a tissue ingrowth sleeve disposed along at least an outer surface portion of the proximal conduit, and wherein the at least outer surface portion of the proximal conduit extends proximally and/or distally from the port surfaces; a separate distal conduit; and a conduit connector adapted for connecting a distal end of the proximal conduit with a proximal end of the distal conduit at a subcutaneous conduit connection located at an adjustable distance distal of the implantable port whereby, by sliding the proximal conduit in the port passageway, a length of the proximal conduit that extends distally of the implantable port, and a resulting spacing between the second port surface and the subcutaneous conduit connection, can be adjusted such that, with the implantable port and the proximal conduit mated and implanted, and with the proximal and distal conduits connected, a distal tip of the distal conduit is positioned at a selected internal body site; further wherein the port passageway is sized along its entire length to generally conform with an outer surface of the proximal conduit to achieve the slidable fit between the proximal conduit and the passageway side wail of the passageway, and further wherein one or more gripping elements are disposed at multiple locations along the passageway side wall of the port passageway between the skin-facing port surface and the second port surface for contacting and slidably retaining the proximal conduit in place when it is positioned inside the port passageway.