Rectal drain appliance
AssigneeConvatec Technologies Inc.
InventorChristopher Gregory
Life of this patent
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Abstract
A rectal drainage appliance is disclosed comprising a tubular element having an inflatable balloon at a distal end for anchoring the appliance in the rectum. The appliance includes one or more of: (i) first and second auxiliary lumens communicating with the inflatable balloon to provide independent inflation and pressure monitoring paths coupled to the balloon; (ii) a pressure state indicator defined by a mechanical element configured to flip between first and second states or shapes responsive to sensed pressure; and (iii) a collapsible auxiliary lumen larger than the inflation lumen, and configured to permit admission of irrigation fluid. The pressure state indicator may also be used in intestinal drains.
Claims20
A rectal drainage appliance comprising:
- a tubular element defining a drain passage for effluent from a rectum;
- an inflatable balloon at a first distal end of the tubular element for insertion into the rectum;
- a first auxiliary lumen communicating with the inflatable balloon, the first auxiliary lumen being substantially non-collapsing and having a first cross-section area;
- and
- a collapsing auxiliary lumen extending to the distal end of the tubular element, the collapsing auxiliary lumen having a second cross-section area that is (i) larger than the first cross section area when the collapsing auxiliary lumen is in a distended state, and (ii) not greater than the first cross-section area when the collapsing auxiliary lumen is in a collapsed state;
- wherein the collapsing auxiliary lumen extends, over at least a part of its length, within the tubular element.
A rectal drainage appliance, comprising:
- a tubular element defining a drain passage for effluent from a rectum;
- an inflatable balloon at a first distal end of the tubular element for insertion into the rectum;
- a first auxiliary lumen communicating with the inflatable balloon, the first auxiliary lumen being substantially non-collapsing and having a first cross-section area;
- a collapsing auxiliary lumen extending to the distal end of the tubular element, the collapsing auxiliary lumen having a second cross-section area that is (i) larger than the first cross section area when the collapsing auxiliary lumen is in a distended state, and (ii) not greater than the first cross-section area when the collapsing auxiliary lumen is in a collapsed state;
- and
- a pressure indicator for sensing a balloon pressure coupled to the first auxiliary lumen for visually indicating, without having to read off a measurement value, a pressure level within the balloon while in use in the rectum;
- wherein the pressure indicator comprises a visually accessible first mechanical element having a three dimensional shape configured to flip from a depressed physical shape to a projected physical shape when the balloon pressure reaches or crosses a predetermined level that exceeds ambient pressure;
- and
- wherein the three-dimensional shape is an invertible dome.
A rectal drainage appliance comprising:
- a tubular element defining a drain passage for effluent from a rectum;
- an inflatable balloon at a first distal end of the tubular element for insertion into the rectum;
- a first non-collapsing auxiliary lumen communicating with the inflatable balloon;
- and
- a collapsible auxiliary lumen extending to the distal end of the tubular element, wherein at least a portion of the collapsible auxiliary lumen extends along the tubular element within the tubular element.
Dependencies are inferred from the claim text.