DK173652B1 - Clamp for, with a clamping force, detachably fitting a device to an especially annular implant - Google Patents

Description

in DK 173652 B1

The invention relates to a clamp for releasably mounting a device on a preferably annular implant and of the kind having two arms, each defining a jaw and a grip, one in the region between the jaws and the grip-shaped hinge 5 for pivotally connecting the arms to each other, and a tension spring to clamp the jaws against each other.

Known devices, e.g. an ostomy bag, may in some embodiments have coupling parts for attaching the bag to 10 corresponding coupling parts on an adhesive surface around an ostomy. The coupling means on the ostomy bag can be used for coupling with an annular implant, but are not directly arranged for this very purpose. Therefore, the ostomy bag cannot always be clamped securely to the implant and in these cases therefore cannot form a perfectly tight joint with this. Eg. small diameter differences can cause a loose interlock that cannot effectively prevent leakage.

The inventors of the present invention have solved a significant portion of these problems with the invention according to Danish patent application PA 2000 00025, which discloses an ostomy bag which is joined together with a coupling which allows for effective clamping e.g. an ostomy bag fixed to one generally annular implant.

25

As an advantageous alternative to this invention, the inventors have now devised the present invention, which is intended to provide a clip of the kind mentioned initially which can be brought, in a simple and straightforward manner, without the nuisance of a patient with an implanted implant. clamping a device to this implant.

Another object of the invention is to provide a clip that can be operated by a person with low finger power.

35 2 DK 173652 B1

A third object of the invention is to provide a clamp which in a simple process can be simply cast into one.

A fourth object of the invention is to provide a clamp 5 provided with a gasket to seal with the implant.

The new and distinctive feature of the invention, whereby this is achieved, consists in the fact that the tension spring is designed as a spring ring with a 10 cross-slot and in its mounted state serves to clamp the device firmly to the implant and that the jaws are pivotally connected to the spring ring.

By pressing the fingertips of the arms towards the other with the tips of the fingers, the jaws of the arms are opened, which thereby opens and extends the elastic ring elastically.

The thus elastically deformed open spring ring can now easily and simply be inserted over the implant when mounted. By subsequently releasing the finger grips, the spring ring returns at least partially to a position where it exerts the desired clamping force on the implant.

In this simple manner, the clamp and any associated device are mounted, such as for example. an ostomy bag that can be fully or partially integrated with the clamp, quickly and easily on a e.g. annular implant. The clip ends tightly and tightly around the implant without the use of locking agents that are difficult to operate especially for a person with weak fingers and difficult to see in detail for a person with poor eyesight.

In a preferred embodiment, the spring ring and arms of the clamp may be formed in one, the jaws and the spring ring being pivotally connected to each other via two foil hinges and the hinge of the arms being another foil hinge. This results in an extremely cheap and safe working clamp.

3 DK 173652 B1

This embodiment of the clip may conveniently be made of a plastic such as polypropylene, nylon or similarly relatively hard, shape-stable, inexpensive, high molecular weight polymers which are resiliently deformable.

A clamp designed with foil hinges integral with the spring ring can easily be injection molded. Therefore, the components of the clamp need not be assembled by individual parts at 10 e.g. welding or bonding. This avoids costly post-processing. In addition, the free movement of the foil hinges is not allowed, which is not hampered by neither glue residue nor welding burrs. Furthermore, there is no risk of the clamp accidentally breaking at weakened or exposed joints 15 when the clamp is spring loaded during assembly or disassembly.

By forming an inner diameter of the spring ring, which in the resting state of the spring ring corresponds to or is smaller than the largest outer diameter of the annular implant, it is ensured that the clamp 20 always securely clamps around the implant. The spring ring may in itself have any cross-section which can engage and be received in a correspondingly formed groove in the implant, but in a particularly preferred embodiment, the cross-section may be substantially rectangular, thereby eliminating the risk of the ring folds during the mounting operation.

However, the spring ring need not necessarily be designed to fit fully or partially into a corresponding groove. Instead, it can simply span around a cylindrical portion of the implant.

When the radial thickness of the spring ring is at least in the region of the slit and gradually grows in the direction of the diametrically opposed region of the spring ring, the ring in all positions can maintain one substantially circular configuration and influence the implant with the same clamping force along the entire periphery.

The clamp may advantageously be provided with a gasket which serves to form a seal between the implant and the device, and which is advantageously made of an elastomer, e.g. can be a rubber.

When at least a portion of the gasket extends along the radial inner surface of the spring ring, the gasket forms an elastic bridge over the transverse gap of the spring ring, so that an effective clamping effect between the spring ring and the implant is also obtained in this area.

The clamp can advantageously be used to couple the implant with e.g. a commercially available ostomy bag formed around the ostomy opening with a groove to receive the clamp.

In addition, the spring ring and gasket may be molded together in a casting process, where the gasket is caused to adhere to at least a portion of the spring ring, for example the radial inside of the spring ring. Thereby, in a simple and inexpensive way, the two parts are effectively and securely joined together.

When the arms of the clamp extend outwards substantially in the same plane as the spring ring, the clamp takes up as little space as possible. The arms are easy to operate by means of the handles, which can be designed with different sizes depending on the current needs. a person with weak fingertips 30 can easily find abutments at their fingertips.

The first two foil hinges may be located on the inside of the spring ring and form part of the spring ring on each side of the transverse slot. This makes the construction compact.

35 5 DK 173652 B1

In each preferred embodiment, each of the jaws may additionally have a length which is between V * and 2, preferably between 1A and 1 V2 times, and especially between the radial thickness of 1A and IV *.

These dimensions allow the spring ring to be opened sufficiently during mounting to allow it to be inserted effortlessly over the implant and then securely and firmly clamped around it.

The arms can furthermore be between 1¼ and 10, preferably between 10 2 and 7 and especially between 2 and 5 times the length of the jaws. Thereby, the clamp is provided with an exchange which can be advantageously used to open a strong and effective spring ring with even modest finger forces.

15 There is a very large and hitherto unmet need for ostomy patients to easily and optionally blindly close or block an ostomy. This possibility now also exists for ostomy patients with the known annular implants from the inventors patent US 6,017,355 and patent applications DK / PA 1999 01026 and DK / PA 2000 00521, the clamp being advantageously formed with a lid over the spring ring opening. When the stoma-operated patient places the clip with a lid over the implant, the patient achieves both comfort and freedom of movement.

In an advantageous embodiment, the clamp according to the invention may be placed inside an ostomy bag in such a way that the spring ring is secured along the rim of the ostomy opening of the bag.

Particularly advantageously, an edge region at the ostomy bag's ostomy opening may be penetrated over and secured along the radial inside of the spring ring. Thereby, the rim area will act as the gasket mentioned above when mounting the ostomy bag on the annular implant.

35 6 DK 173652 B1

An ostomy bag thus manufactured with an integrated clamp is easy and inexpensive to manufacture with known techniques. The bag is also simple and quick to install and remove on the implant.

The invention is further described below, by way of example only, with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of a particularly simple embodiment 10 of a clamp according to the invention,

FIG. 2 is a perspective view of another embodiment of a clip according to the invention; FIG. 3 is a perspective view of the second embodiment of the invention fitted with a gasket and an explosive device of this second embodiment.

FIG. 4 shows the same, during mounting on an implant.

20

FIG. 5 shows a section along the line V-V in FIG. 4

FIG. 6 is a perspective view of the first embodiment of the clamp mounted internally in an ostomy bag and secured in its ostomy opening;

FIG. 7 is a perspective view of a third embodiment with a locking bracket between the free ends of the arms; 8 shows the same but where the locking bar is in its unloaded state.

FIG. 9 is a perspective view of a clip with a lid; and FIG. 10 is a sectional view taken along the line X-X of FIG. 9th

7 DK 173652 B1

The invention is described below from the assumption that the clip of the invention is used for an ostomy bag on an implant. However, within the scope of the invention, the clamp can be used with equal advantage for many other devices, 5 of which may be mentioned, for example, wigs for mounting on a bald ice, hoses for e.g. flushing a stool reservoir in a patient with an implant attached to a stoma, or, in general, to tubing to be clamped around another portion.

10

The FIG. 1, simple clip 1 shown consists of a spring ring 2 which, at a transverse slot 3, passes into two protruding arms 4, which are partly connected to one another by a foil hinge 5 and partly by the spring ring via foil hinges 6. The arms 15 are formed with jaws 7 and grips 8, which serve as abutments for the fingers when the clip 1 is to be mounted on or removed from an annular implant. When the grip 8 of the clamp 1 is actuated by a clamping force in the direction of the arrows, ie. towards one another, the spring ring 2 is opened to a size 20 sufficiently large for the spring ring to be inserted over an implant (not shown). When the grips are released again, the spring ring returns to a mounted position where the spring ring clamps around the implant with its spring force.

The clip 9 in FIG. 2 is substantially similar to that of FIG. 1 and the same reference numerals have therefore been used for similar parts. The only difference is that the handles 10 are designed with a larger abutment surface to be able to comfortably compress the handles with the fingers.

30 In the exploded view of FIG. 3, the clamp 9 is shown with a gasket 11. The gasket has an outer part 12 and an inner part 13. The outer part 12 has a larger outside diameter than the inner part 13, the outside diameter of which corresponds to the inner diameter of the spring ring 1. The inner part 13 is molded along the inner periphery of the spring ring 1 and spans the transverse gap 3. Along an inner peripheral peripheral area of the inner part, the gasket has a circumferential projection 14 which serves to engage with a groove in the embodiment shown in FIG. 4, the circumferential protrusion 14 of the inner member therefore has a thickness which in the main case corresponds to the height and depth of this groove. This can be seen more clearly in the FIG. 5 shows the cross section of the clip 9 mounted on the implant 15.

The gasket is in the FIG. 3, 4 and 5 are made of 10 an elastic material such as rubber which easily adheres to the spring ring movements during assembly and removal. The gasket 11 is advantageously positioned as a tight, resilient seal between the implant and the spring ring.

FIG. 5 shows, taken along line V-V in FIG. 4, the clamp 9 with a gasket 11, mounted on the coupling portion 18 of a commercial ostomy bag 19, the outer portion 12 is formed with a radial thickness and a diameter respectively, which can be clamped to the groove 17 on the coupling portion 18 of the ostomy bag 19.

Such a commercially available ostomy bag 19 is sold e.g. by Coloplast Group A / S, DK-3050 Humlebæk, Denmark and Dansac A / S, Lille Kongevej, DK-3480 Fredensborg, Denmark. In the example shown, the radial thickness is relatively large. For some purposes, the width of the groove 17 of the coupling member 18 is small and the outer member 12 is then formed with correspondingly small dimensions.

In the exploded view of FIG. 4 is that of FIG. 3, shown in Danish Patent Application No. DK / PA 2000 00521, implant 30 15. The circumferential protrusion 14 is received in the groove 16. The implant 15 does not form part of the present invention. frame and will therefore not be discussed further here.

35 In FIG. 6, the clamp 1 is positioned internally in an ostomy bag 20 at its ostomy opening 21. A portion of the bag material at the opening 21 9 is encroached over the top of the spring ring 2 and down its inside, where the bag material is firmly secured and serves as an appropriate seal. . In this case, the ostomy bag is made of a flexible plastic, such as. polyethylene, 5 that can withstand high tensile stresses without breaking or weakening.

Such a material is particularly convenient as it can adhere to the different shapes of the spring ring as the diameter of the ring 10 increases during mounting and dismounting of the clamp.

In FIG. 6, the arms of the clamp 1 are arranged so that they generally face upward when the ostomy bag is in use. This location makes it easy for the patient to grasp the grip of the arms. Alternatively, in the case where the bag material does not form part of the gasket, the clamp may be welded or bonded internally to the ostomy bag along a free outer surface and subsequently provided with a gasket of an elastomeric material along the inner periphery. Combinations in which the package consists of both bag material and an extra rubber package are also an option within the scope of the invention.

FIG. 7 and 8 show a clamp 22 with a hanger 23 having a length greater than the widest possible distance between the grips 8 of the arms 4 and which is furthermore sufficiently large for the hanger to push the arms 4 so far apart; that the spring ring 2 can be opened sufficiently that it can be brought down over the implant.

FIG. 7 shows the open spring ring 2 with the hoop 23 pressed down between the arms in the direction of the arrow. In FIG. 8, the shackle 23 is retracted in the direction of the arrow, thereby restoring the spring ring 2.

This embodiment, like those of FIG. 1 and FIG. 2 embodiments are internally mounted and integral with an ostomy bag and, like terminals 1 and 9, may be provided with a gasket 12.

The clamp 22 is a good help for a person who, due to 5 weak finger forces or decreased sensation in the fingertips, has difficulty in overcoming the reaction of the spring ring spring force when the person, when mounting the clamp, has to press the grips 8 with the fingers.

10 In FIG. 9, the clip 1 is shown in an embodiment in which the opening is covered with a lid 24. A clamp thus arranged provides a unique opportunity to seal the free outlet of the stoma / implant to the surroundings, and gives the user a new and new freedom of movement for e.g. to practice sports without at the same time being bothered by a stuffed ostomy bag.

FIG. 10 is a sectional view taken along the line X-X of FIG. 9. In the case shown, the clamp along the inner periphery of the spring ring is provided with a gasket 25 which serves to ensure that the clamp 20 can be optimally clamped to an implant. To further ensure this, the gasket 25 has a circumferential projection 26.

The lid can e.g. may be formed of a resilient, resilient material, or may alternatively be a pressure or optionally a screw cap over the spring ring opening.

25 30 35

Claims (15)

1. Klexrane (1,9,22) detachably mounted with a clamping force on a device (18,19,20) on a preferably annular implant (15) and of the kind having two arms (4) each of which defines a jaw (7) and a grip (8,10), one hinge (5) formed in the region between the jaws (7) and the grip (8,10) for pivotally connecting the arms (4) to each other, and a 10 spring (2) for clamping the jaws (7) against each other, characterized in that the clamping spring (2) is formed as a spring ring (2) with a transverse slot (3) and serves to clamp the device to the implant (15). with said clamping force and that the jaws (7) are pivotally connected to the spring ring (2). Clamp (1,9,22) according to claim 1, characterized in that the spring ring (2) and arms (4) of the clamp (1,9,22) are formed in one piece, that the jaws (7) and the spring ring (2) ) are pivotally connected to each other via foil hinges (6) and the hinge (5) is another foil hinge (5). Clamp (1,9,22) according to claim 1 or 2, characterized in that the spring ring (2) is molded in one of a plastic. 25 Clamp (1,9,22) according to any one of claims 1, 2 or 3, characterized in that the spring ring (2) in its resting state has an inside diameter equal to or smaller than the annular implant (15) larger outer diameter. 30 Clamp (1,9,22) according to any one of claims 1 to 4, characterized in that the spring ring (2) has one substantially rectangular cross-section. Clamp (1,9,22) according to any one of claims 1-5, characterized in that the radial thickness of the spring ring (2) is 12 DK 173652 B1 at least in the region of the transverse gap (3) and that this thickness gradually increases in the direction towards the diametrically opposed region of the spring ring (2). Clamp (1,9,22) according to any one of claims 1 to 6, characterized in that the clamp (1,9,22) is provided with a gasket (11) for forming a seal between the implant (15) and the device ( 18,19,20). Clamp (1,9,22) according to claim 7, characterized in that the gasket (11) is made of an elastic material and that part of the gasket (11) extends along the radial inside of the spring ring (2). Clamp (1,9,22) according to any one of claims 7 or 8, characterized in that the spring ring (2) and the gasket (11) are molded together. Clamp (1,9,22) according to any one of claims 1 to 6. 20, characterized in that the arms (4) of the clamp (1,9,22) extend outwards substantially in the same plane as the spring ring (2). Clamp (1,9,22) according to any one of claims 1 to 10, characterized in that the first two foil hinges (6) are located at the inside of the spring ring (2) and each of the jaws (7) has a length , which is between V 'and 2, preferably between Vs and 1 Vt, and especially between 3A and VA times the radial thickness of the spring ring (2). Clamp (1,9,22) according to any one of claims 1 to 10, characterized in that the arms (4) are between IV: and 10, preferably between 2 and 7 and especially between 3 and 5 times the jaws (7). length. A clamp (1,9,22) according to any one of claims 1 to 10, characterized in that the clamp (1,9,22) is formed with a cover (24) over the opening of the spring ring. Clamp (1,9,22) according to any one of claims 1 to 10, wherein the device (18,19,20) is an ostomy bag (20), characterized in that the clamp (1,9,22) is placed inside in the ostomy bag (20) and the spring ring (2) is secured along the rim of the ostomy opening (21). 10 Clamp (1,9,22) according to claim 14, characterized in that an edge area at the ostomy opening (21) of the ostomy bag (20) is fixed along the radial inside of the spring ring (2). 15 20 25 30 35