Device for trans anal irrigation

Patent metadata

Field	Value
Publication number	US-2016339166-A1
Application number	US-201414902469-A
Country	US
Kind code	A1
Filing date	Aug 29, 2014
Priority date	Aug 30, 2013
Publication date	Nov 24, 2016
Grant date	—

Abstract

A trans-anal irrigation (TAI) system adapted for self-use includes an irrigation head supplied with water from a reservoir by a pump or by gravity feed. The irrigation head has either internal or external structures for releasably retaining the head in a user's rectum during the water flow portion of a TAI process. A guide member arm may be provided for manipulating the irrigation head for both insertion and removal. The irrigation head is reliably attached to the guide member arm. The guide member arm may include an integral manual pump.

First claim

1 . An irrigation head for a trans-anal irrigation device, comprising:
a conduit having a fluid passage therethrough; a flexible bulb surrounding at least a portion of the conduit, the bulb being sealed to the exterior of the conduit to define a chamber and prevent fluid communication between the chamber and the fluid passage; and a liquid in said chamber.

2 . The irrigation head of claim 1 wherein the bulb is sealed to the conduit at a distal end of the bulb and at a proximal end of the bulb.

3 . The irrigation head of claim 1 wherein the bulb is sufficiently flexible that the liquid contained inside the chamber can be displaced during insertion and removal of the irrigation head.

4 . The irrigation head of claim 1 further comprising a rigid fitting connected to the conduit and in fluid communication with the fluid passage.

5 . The irrigation head of claim 4 further comprising a guide member connected to the fitting.

6 . An irrigation head for a trans-anal irrigation device, comprising:
a hollow barrel having a wall and at least one port through the wall and in fluid communication with the interior of the barrel; a conduit disposed in and extending through the barrel, the conduit and barrel wall defining an annulus between the exterior of the conduit and the interior surface of the wall; a plunger having a hollow shaft, the shaft being sized to fit in the annulus for reciprocal movement therein; and a first balloon surrounding the barrel and having a distal end sealed on one side of the port and a proximal end sealed on the other side of the port.

7 . The irrigation head of claim 6 further comprising:
a second port through the barrel wall and in fluid communication with the interior of the barrel, the second port being axially spaced from said at least one port;
a second balloon surrounding the barrel and axially spaced from the first balloon, the second balloon having a distal end sealed on one side of said second port and a proximal end sealed on the other side of said second port.

8 . The irrigation head of claim 7 further comprising a spacer surrounding the exterior of the barrel and located between said first and second balloons.

9 . The irrigation head of claim 6 further comprising a flange attached near one end of the barrel and extending radially therefrom.

10 . The irrigation head of claim 6 further comprising a press pad attached to the plunger near the end thereof which is external of the annulus.

11 . The irrigation head of claim 9 further comprising a press pad attached to the plunger near the end thereof which is external of the annulus, the press pad having a shape which is complementary to that of the flange.

12 . The irrigation head of claim 6 further comprising a hollow tip formed at the distal end of the barrel and having a radial port extending through the tip.

13 . An irrigation head for a trans-anal irrigation device, comprising:
a conduit having first and second fluid passages therethrough and a radial port in fluid communication with one of the fluid passages; an inflatable balloon surrounding at least a portion of the conduit, the balloon being sealed to the exterior of the conduit on either side of the port to define a chamber in fluid communication with said one of the fluid passages for expansion during the irrigation process; and a diverter for selectably directing irrigation fluid to the first and second fluid passages.

14 . The irrigation head of claim 13 wherein the expanded balloon has a lug shape to conform to the inner channel of the bowel.

15 - 59 . (canceled)

Assignees

• Hollister Inc

Inventors

• Adam Foley J

Classifications

• A61M3/0216

  Pressure · CPC title

• A61M3/0295 Primary

  with inflatable balloon · CPC title

• A61M3/0245

  Containers therefor, e.g. with heating means or with storage means for cannula · CPC title

• A61M2210/1067

  Anus · CPC title

• A61M3/0279

  Cannula; Nozzles; Tips; their connection means · CPC title