Devices and methods for treatment of fistulas and complex wounds

Inventors

Obst, Andrew Thomas • Obst, Maryanne Ruth • Dries, David James

Assignees

Fistula Solution

Abstract

An enteric fistula healing device, configured for application over a fistula or other wound to physically separate the fistula from the remainder of the wound area, such that any effluent from the intestine or bowel, or other enteric substances, that pass through the fistula are prevented from communicating with the wound area. The device is configured to collapse from a first height to a shorter second height.

Core Innovation

The disclosure provides a device to manage effluent drainage from a wound such as a fistula, where the wound includes a wound opening and a wound bed surrounding the wound opening. The device physically isolates the wound opening from the wound bed by forming a seal around the wound opening so that effluent drainage is contained and the wound opening is separated from the surrounding wound bed.

In one aspect, the device includes a liquid containment vessel configured to collapse from a first height to a second height less than the first height, with a primary vessel opening providing liquid communication between an interior volume and the wound opening. A flexible and trimmable annular skirt depending from the first end and a wound sealing flange proximate the primary vessel opening form the sealing relationship such that the sidewall and the skirt surround the wound opening and the flange forms a seal around the wound opening.

In another aspect, the device uses a unitary, non-porous liquid containment vessel with first and second ends and a sidewall configured to collapse from a first height to a second height less than the first height, the first end defining a primary vessel opening providing liquid communication to the wound opening. The device further includes a secondary vessel opening at the second end, a flexible trimmable annular skirt depending longitudinally from the first end, and a wound sealing flange extending radially from the sidewall proximate the primary vessel opening between the sidewall and the annular skirt, where the flange forms a sealing ring around the wound opening to physically isolate the wound opening from the surrounding wound bed.

Claims Coverage

The partial content includes two independent claims, each defining a device for managing effluent drainage from a wound such as a fistula and emphasizing physical isolation of a wound opening from a surrounding wound bed using a collapsible, non-porous liquid containment vessel with a sealing flange and a flexible trimmable annular skirt.

Across the independent claims, the core inventive structure is a device that uses a collapsible liquid containment vessel, a primary vessel opening providing liquid communication to the wound opening, a flexible trimmable annular skirt, and a wound sealing flange with an outer-diameter relationship that enables the flange to form a sealing ring around the wound opening to physically isolate it from the surrounding wound bed.

Stated Advantages

Documented Applications