Implantable injection port with tissue in-growth promoter

摘要

A surgically implantable injection port has a tissue in-growth promoting surface associated with a fluid conduit that is coupled to the injection port. The injection port includes a housing, a fluid reservoir defined in part by the housing, a needle penetrable septum, a fluid conduit in communication with the reservoir, and a tissue in-growth promoting surface coupled to the fluid conduit. The tissue in-growth promoting surface may be provided by surgical mesh wrapped around the conduit or through which the conduit is threaded. The injection port and the fluid conduit may be used as part of a gastric band system or some other type of system.

主权项

1. A surgically implantable injection port, comprising:
(a) a housing, wherein the housing comprises:
(i) a housing body,(ii) a housing base, and(iii) a conduit connection feature; (b) a fluid reservoir defined in part by the housing; (c) a needle penetrable septum having an outer surface, wherein the septum defines part of the fluid reservoir such that the reservoir is located below the septum, wherein the fluid reservoir is configured to receive part of a needle inserted through the outer surface of the septum; (d) a fluid conduit coupled with the conduit connection feature, wherein the fluid conduit is in fluid communication with the fluid reservoir via the conduit connection feature; (e) surgical mesh for promoting tissue in-growth, the surgical mesh having a first portion mounted at least partially within the housing between the housing body and the housing base, the surgical mesh further comprising a second portion, wherein the second portion comprises an elongated strip extending away from first portion, wherein the second portion is wrapped in an overlapping fashion around and extends along a length of at least a portion of the fluid conduit, wherein the first portion comprises a central region and an exposed annular region, wherein the central region is positioned over the septum, wherein the exposed annular region extends outwardly from an exterior of the housing around a lower periphery of the housing body, wherein the annular region is in contact with the exterior of the housing but is otherwise unrestrained relative to the housing, wherein the central region of the first portion has a different density from the exposed annual region of the first portion, wherein the central region and the exposed annular region of the first portion are exposed to promote tissue in-growth; and (f) a gastric band having an inflatable member, wherein the fluid conduit provides a pathway for fluid communication between the fluid reservoir and the inflatable member, wherein the fluid reservoir, the fluid conduit, and the inflatable member together form a closed fluid circuit.