JPS6368159A - Coupling for artificial anus - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a colostomy coupling, and more particularly to a coupling for removably connecting a bag or pouch for receiving excreta to a pad.

The pad is attached to the wearer's body. Such bags are often referred to as "ostomy bags."

Prior Art As described in British Patent No. 2121902:
A colostomy coupling with desirable characteristics is one that is easy to connect and disconnect for changing or emptying the bag, has good mounting and sealing security, and has a flat design, but it is lightweight and wearable. Alternatively, this is to make the bag less noticeable when worn under athletic clothing. It has been proposed that colostomy patients should wear a pad of medical/surgical adhesive material surrounding the stoma, and that a colostomy bag or pouch should be connected to the pad. Proposals to achieve this have been made in British Patents Nos. 1021145 and 10994.
It's in issue 55. A simple coupling that rotates two parts relative to each other for connection and separation is described in British Patent No. 15.
No. 79875.

Structure and Effects of the Invention The present invention comprises a first part having seven lunges, a central chute and a series of spaced projections, a peripheral seal surrounding and engaging the outer wall surface of the chute, and snapping into the spaced projections. a second part having a matable outwardly projecting rim, and a rotatable, push-in clamp (pos) between the rim and the projection;
The present invention provides a three-part colostomy coupling characterized in that it includes a third part that provides tive locking.

The invention further provides that rotation of the cam ring to one position prevents separation of the two coupling parts, and rotation of the cam ring to another position allows such coupling parts to be separated by hand. The present invention provides a colostomy coupling consisting of three parts, which is characterized by:

Hereinafter, the coupling of the present invention will be explained in more detail based on the accompanying drawings.

FIG. 1 is a cross-sectional view of an example of the first part, which is preferably, but not necessarily, a body-side coupling element; FIG. Uru 2nd
FIG. 3 is a cross-sectional view of the third component (in FIGS. 1 to 3, the common axis of the small hole opening is indicated by a perpendicular dashed-dotted line), and the fourth and fifth components. The figures show the assembled state of the coupling of the present invention, viewed at right angles to each other, and Figure 4 is A of Figure 5.
- It is a sectional view taken along the A line.

The illustrated ostomy coupling of the present invention includes a first coupling element 10, a second coupling element 12, and a tightening ring 14 (sometimes referred to as a "cam ring"). The first coupling element 10 is a body side member comprising a flange 16, a central chute 18, and a chute 1.
8 has a series of spaced protrusions 20 surrounding it. The first coupling element 10 is preferably made in one piece as a plastic molding. The protrusion 20 is the chute 18
The shape is arched (see Fig. 4). These projections 20 are arranged at regular intervals from each other in the circumferential direction, preferably at intervals slightly larger than the arch length of each projection 20. Protrusion 2
Preferably, all of the 0's have the same arch length, but this is not required. Although the chute 18 is shown as having a cylindrical shape surrounding the stoma opening 22, slight deviations from this annular shape are considered to be within the scope of the present invention.

The second coupling element 12 shown in FIG. 2 is a bag-side coupling element. In this embodiment of the invention, such elements are similar to those described in Figure 5 of British Patent No. 2,121,902, for which a detailed description is provided. The bag-side coupling element 12 includes a filter housing 24 . This is a British patent @ No. 85
It can take the shape shown in No. 31257. The housing 24 houses the filter material 23, and the lid or j is the cover 2.
5. Filter housing 2
The presence of 4 is not essential to the present invention. It should be noted that even in an ostomy coupling without a filter housing, advantages can be obtained by tightening the two coupling elements 10.12 together in the described manner. The second coupling element 12 has a flexible sealing strip 36. This strip 36 of the second coupling element 12 is a flexible, deformable sealing means and may be of the type described in GB 1,568,860.

The coupling ring 14, as shown in FIG. (Flat surface) 30 are connected to form a partially circular surface (see FIG. 4).

These straight sections 30 actually act as cams.

In one rotational position of the ring 14, ie, the position shown in FIG. At a position located in the space of 20,
The constraint on outward movement of the protrusion 20 is removed.

From the Snake, it is understood that the function of the ring 14 is to provide push-in clamping, and the clamping position (moved by the wearer of the bag by grasping the ear 26 and rotating it around the axis of the stoma opening) position) is as shown in FIG. ring 14
In the untightened position of the first and second coupling elements 1
By pulling 0.12 in the axial direction by hand, the protrusion 20
A slight deformation occurs, allowing the rim 32 to spring out of the inwardly extending portion 34 of each projection 20, separating both elements from each other.

The use of relative rotation to effect tightening between two parts of an ostomy coupling has already been proposed, for example in British Patent Specifications Nos. 1,021,145 and 1,579,875. However, these proposed prior art techniques do not appear to be effective in practical removal because they are difficult to operate and the seal to the liquid outlet is unreliable. On the other hand, the present invention described above embodies a well-considered technique, in which it is determined that the parts of the coupling cannot be separated except when desired by the wearer. give. It is clear that it will work effectively in conjunction with a cam ring (or clamping ring) that has advantageous specific characteristics.

[Brief explanation of the drawing]

1 to 3 each show an example of each component constituting the coupling of the present invention, in which FIG. 1 is the first component, FIG. 2 is the second component, and FIG. 3 is a cross section of the third component. Figures 4 and 5 show the assembled state of the coupling of the present invention, with Figure 4 being a longitudinal cross-sectional view taken along line A-A in Figure 5, and Figure 5 being a cross-sectional view, 10: 1st part (coupling element), 12: 2nd part (coupling element), 14: 3rd part (cam ring)
, 16: flange, 18: center chute, 20: protrusion,
30: Straight section, 32: Rim, 36: Seal strip. Patent Applicant Flave Medical Products Limited

Claims (6)

[Claims] 1. a first part having a flange, a central chute and a series of spaced projections, a peripheral seal surrounding and engaging an outer wall surface of the chute, and an outwardly projecting rim snap-fittable with the spaced projections; A three-part ostomy coupling, characterized in that it includes a second part and a third part which is rotatable and provides a push-fit clamping between the rim and the projection. 2. Rotation of the cam ring to one position prevents separation of the two coupling parts, and rotation of the cam ring to another position allows the coupling parts to be separated by hand. Coupling for colostomy consisting of three characteristic parts. 3. The two coupling parts are comprised of a first part and a second part of resilient plastic material, the first part forming a wall around the stoma opening and extending outwardly from the wall away from the stoma opening. a projecting rim, the second part being formed of a plurality of arched walls, each arched wall having an inward protrusion, the inward protrusion being deflected against the rim; 3. The coupling according to item 2, wherein the two coupling parts can be separated based on the elasticity of the materials. 4. Coupling according to claim 1, wherein the third part is formed by a cam ring. 5. 5. The coupling according to item 2 or 4, wherein the cam ring has cam surfaces that are alternately formed of cylindrical surfaces and flat surfaces. 6. Coupling according to any one of the preceding clauses, wherein the third part deforms the spaced projections such that the projections overlap the rim.