CONTROLLED DISCHARGE OSTOMY APPLIANCE AND SHIELD THEREFOR
First Claim
1. A controlled discharge ostomy appliance assembly, comprising:
- (a) a controlled discharge ostomy appliance having a body-facing side for facing towards a stoma in use, the appliance comprising;
a seal support wall;
a flexible seal membrane sealed to the support wall to define a seal chamber;
a resilient device disposed in the seal chamber and configured for generating, in response to compression of the resilient device from the body facing side, a resilient return force for urging the seal membrane in a direction towards the body-facing side to a deployed seal state; and
at least one port communicating with the seal chamber for permitting the transfer of inflation fluid with respect to the seal chamber, said at least one port defining a fluid flow property to effect a dynamic damping characteristic for changes in volume of the seal chamber; and
(b) a seal displacer fastened releasably to the appliance forming a combined assembly therewith, the seal displacer being manipulable by hand to displace the seal membrane against the return force of the resilient device, to place the seal membrane in a non-deployed seal state ready for the appliance to be fitted at a stoma, wherein in the non-deployed seal state the resilient device is substantially compressed, and the seal membrane is displaced to a substantially non-operative position, and whereafter, upon separation of the seal displacer from the appliance, the seal membrane advances progressively towards the deployed seal state by the resilient return force damped by the dynamic damping characteristic.
3 Assignments
0 Petitions
Accused Products
Abstract
A controlled discharge ostomy appliance assembly comprises (i) a stoma seal that is self-urging with a dynamic damping characteristic that resists changes of seal volume, (ii) a press-fit coupling member displaceable from an unlocked position to a locked position as part of a press-fit process, and (iii) a single-use frangible portion. The assembly further includes a protector shield removably fastened to the appliance forming a combined assembly therewith. The protector shield comprises (i) a seal displacer manipulable for displacing the stoma seal to a non-operative position ready for fitting, (ii) a substantially rigid coupling member guard portion for protecting the state of the coupling member, and (iii) a bracing portion for bracing the single-use frangible portion.
16 Citations
37 Claims
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1. A controlled discharge ostomy appliance assembly, comprising:
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(a) a controlled discharge ostomy appliance having a body-facing side for facing towards a stoma in use, the appliance comprising; a seal support wall; a flexible seal membrane sealed to the support wall to define a seal chamber; a resilient device disposed in the seal chamber and configured for generating, in response to compression of the resilient device from the body facing side, a resilient return force for urging the seal membrane in a direction towards the body-facing side to a deployed seal state; and at least one port communicating with the seal chamber for permitting the transfer of inflation fluid with respect to the seal chamber, said at least one port defining a fluid flow property to effect a dynamic damping characteristic for changes in volume of the seal chamber; and (b) a seal displacer fastened releasably to the appliance forming a combined assembly therewith, the seal displacer being manipulable by hand to displace the seal membrane against the return force of the resilient device, to place the seal membrane in a non-deployed seal state ready for the appliance to be fitted at a stoma, wherein in the non-deployed seal state the resilient device is substantially compressed, and the seal membrane is displaced to a substantially non-operative position, and whereafter, upon separation of the seal displacer from the appliance, the seal membrane advances progressively towards the deployed seal state by the resilient return force damped by the dynamic damping characteristic. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A controlled discharge ostomy appliance assembly, the assembly comprising:
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(a) a controlled discharge ostomy appliance having a body-facing side and comprising; a cover; a stoma seal disposed within the cover, a first coupling member for coupling to a body fitment for mounting the appliance in an operative position at a stoma, the first coupling member being displaceable with respect to the cover from an unlocked position to a locked position; and (b) a protector shield for protecting the body-facing side of the controlled discharge ostomy appliance, the protector being made of integrally molded plastics and comprising; a substantially rigid coupling member guard portion for protecting the first coupling member of the appliance from external forces that might otherwise displace the first member from the unlocked position to the locked position, and a fastener profile for co-operating with the appliance at a location distinct from the first coupling member, to fasten the protector to the appliance releasably to form a combined assembly therewith. - View Dependent Claims (16, 17)
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18. A controlled discharge ostomy appliance assembly, the assembly comprising:
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(a) a controlled discharge ostomy appliance having a body-facing side and comprising; a stoma seal, and a member including a frangible portion that is selectively breakable or tearable in use for releasing at least one of (i) the stoma seal from an operative position; and
(ii) the appliance from a body fitment; and(b) a protector shield for protecting the body-facing side of the controlled discharge ostomy appliance, the protector being made of integrally molded plastics and comprising; a bracing portion for bracing and supporting said member of the appliance, to prevent tearing of the frangible portion prior to first use, and a fastener profile for co-operating with the appliance, to fasten the protector to the appliance to form a combined assembly therewith. - View Dependent Claims (19)
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20. A protector shield for protecting a body-facing side of a controlled discharge ostomy appliance, the protector being made of integrally molded plastics and comprising:
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(i) a seal displacer manipulable by a user to displace a self-urging seal of the appliance to a non-deployed position prior to fitting the appliance at a stoma, (ii) a substantially rigid coupling member guard portion for protecting a first coupling member of the appliance from external forces that might otherwise displace the first member from an unlocked position to a locked position, (iii) a bracing portion for bracing and supporting a second member of the appliance, the second member including a frangible portion that is selectively breakable or tearable in use to release the appliance, (iv) a fastener profile for co-operating with a periphery of the appliance, to releasably fasten the protector shield to the appliance to form a combined assembly therewith. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A controlled discharge ostomy appliance for attachment to body-side coupling member of a body fitment, the appliance comprising:
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a stoma seal for sealing against a stoma in use; a first member of closed loop form and including a coupling formation, the coupling formation being deflectable to permit press fit engagement with a said body-side coupling member when pressed in a first direction; a second member having at least one bracing portion; wherein the first and second members are relatively displaceable generally parallel to said first direction, from a first unlocked position in which the bracing portion does not substantially brace the coupling formation against said deflexion, to a second locked position for bracing the coupling formation against said deflexion; wherein the appliance further comprises; co-operating retainers on the first and second members and configured to; (i) retain said first and second members initially in said unlocked position with a first retention strength until pressure is applied to cause relative displacement of the first and second members to the locked position; and (ii) retain said first and second members in said locked position with a second retention strength; and the appliance further comprising a single-use frangible portion of the second member, for obstructing attachment of the device to the body side coupling member more than once, the frangible portion extending through said bracing portion, and configured such that, to release the appliance, the frangible portion is torn, thereby removing the bracing effect of the bracing portion. - View Dependent Claims (28)
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29. A controlled discharge ostomy appliance, the appliance comprising:
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a first integrated module comprising;
a top wall;
a collapsible collector depending from the top wall at a first open end of the collector; and
a first member of closed loop shape depending from the collapsible collector at a second open end of the collector;
the first module defining a first chamber;a second integrated module comprising;
a second member including a bracing portion for cooperating with the coupling formation of the first member for bracing the coupling formation against outward deflection, the second member including a frangible portion for releasing the bracing effect when the frangible portion is broken; anda third integrated module comprising;
a seal support wall and a seal membrane depending from the seal support wall, the seal support wall and the seal membrane defining a seal chamber in which is disposed a resiliently compressible device;
the third module being locatable in an operative position at least partly within in the first chamber of the first module with the seal support wall arranged close to the top wall;wherein the first, second and third modules are attachable one to another to form an appliance assembly. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36)
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37. A method of preparing a controlled discharge ostomy appliance for fitting at a stoma, the appliance having a body-facing side for facing towards a stoma in use, and the appliance comprising:
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a seal support wall; a flexible seal membrane sealed to the support wall to define a seal chamber; a resilient device disposed in the seal chamber and configured for generating, in response to compression of the resilient device from the body facing side, a resilient return force for urging the seal membrane in a direction towards the body-facing side to a deployed seal state; and at least one port communicating with the seal chamber for permitting the transfer of inflation fluid with respect to the seal chamber, said at least one port defining a fluid flow property to effect a dynamic damping characteristic for changes in volume of the seal chamber; wherein the method comprises the step of displacing the seal against the return force of the resilient device, to place the seal membrane in a non-deployed seal state ready for the appliance to be fitted at a stoma, wherein in the non-deployed seal state the resilient device is substantially compressed, and the seal membrane is displaced to a substantially non-operative position, from which the seal membrane advances progressively towards the deployed seal state by the resilient return force damped by the dynamic damping characteristic.
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Specification