Catheter holder

Abstract: A catheter holder has a pad of medical grade adhesive material (12) having one surface for attachment to the skin of a wearer, and a pair of tapes (16) secured to and extending from the other surface of the pad. A multiple use adhesive is placed on a surface of at least one tape which surface faces generally towards the other tape. With such an arrangement, the two tapes can be stuck together to enclose the catheter and at the same time the tape carrying the adhesive sticks to the adjacent wall of the catheter so preventing logitudinal movement of the catheter relative to the pad.

Description: As a result of various medical procedures, catheters often are employed to drain body fluids or administer substances. Various devices have been developed for the purpose of securing a catheter or other tubing to the body of the patient to prevent accidental dislodgement. Devices which rely on an adhesive attachment to the catheter or tubing are shown, for example, by Mellor in U.S. Patent 3,826,254, Haerr in U.S. Patent 4,122,857, Geist in U.S Patent 4,333,468, Brown in U.S. Patent 4,484,914, Moseley in U.S Patent 4,460,356, Vaillancourt in U.S. Patents 4,801,296 and 4,830,914, Hesketh in U.K. Patent Application 2,211,417, and Muller in European Patent Application 206,558. Other devices have been developed which secure the catheter by a means of interengageable fabric such as Velcro as shown, for example, by Boyd in U.S. Patent 3,834,380, Rosin in U.S. Patent 4,074,397, Kaplan et al. in U.S. Patent 4,096,863, Womack in U.S. Patent 4,416,664, Hubbard et al. in U.S. Patents 4,571,245 and 4,617,017 and Campbell in U.S. Patent 4,799,923. Other devices have been developed which rely on a mechanical means to secure the catheter as shown, for example, by Edwards in U.S. Patent 4,360,025, Brown in U.S. Patent 4,378,012, Beran in U.S. Patent 4,392,857, Gordon in U.S. Patent 4,397,647, Taheri in U.S. Patent 4,586,919, Weeks in U.S. Patent 4,645,492, Nowak et al. in U.S. Patent 4,699,616, Bierman in U.S.Patent 4,711,636, Cameron et al. in U.S. Patent 4,717,385, and Hesketh in U.S. Patent 4,874,380. It has been proposed in GB 2,211,417A, which is considered to represent the closest prior art with respect to the present invention that a catheter retaining device should include a pad having a hole therein, one surface of the pad being adhesive for adhering to the body of a patient, and the other surface of the pad mounting a tab element adjacent said hole. The element is foldable relative to the pad, and the surface of the tab remote from the pad is adhesive. The arrangement is such that the adhesive tab can he folded around and adhere to a catheter which extends through the hole, so retaining the catheter in position. According to the invention, there is provided a catheter holder which comprises a pad of medical grade adhesive material having one surface for attachment to the skin of a wearer, tape means secured to the other surface of the pad and providing a pair of tape sections, which extend from said other surface and are aligned with each other, there being adhesive on a surface of at least one tape section, characterised in that (a) a hole in the pad between the tape sections is provided, through which the catheter may be passed in a direction transversely of the pad, and (b) a surface of one tape section has multiple use adhesive thereon and faces towards the other tape section such that the facing surfaces of the tape sections can be temporarily adhered to each other on each side of the catheter to thereby encase the catheter and hold it in such a position that it extends transversely of the pad, the distal ends of the tape sections being free of said adhesive so that they can he used to facilitate peeling the tape sections apart and said adhesive also being arranged to adhesively engage the catheter to prevent longitudinal movement thereof relative to the pad Optionally, the pad may have an opening or hole near the point of attachment of the tapes, so that the catheter can be threaded through the pad. Alternatively, the pad may be slit inwardly from its edge with the slit joining a hole. This arrangement enables a catheter to be engaged with the device without a threading operation. It is often necessary to avoid threading, e.g. where one end of the catheter is attached internally of the wearer and the other end is attached to a container for the discharge of exudate. An important advantage of a preferred embodiment of this invention is that the catheter can be satisfactorily held and re-held after adjustment whether it extends from the body of the wearer substantially perpendicular to the skin, or at some lesser angle. The invention will be better understood from the following non-limiting description of an example thereof given with reference to the accompanying drawings in which:- Figure 1 is a view from above of one example of a catheter holder in accordance with the invention having a circular pad of medical grade adhesive, and showing tapes thereof separated; Figure 2 is similar to Figure 1 but shows a catheter extending through the pad and the tapes in their unjoined inoperative position, and Figure 3 is similar to Figures 1 and 2 but shows the two tapes stuck together to surround and grip the catheter and hold it transverse to the medical grade adhesive pad. The catheter holder 30 illustrated in Figures 1-3 includes a pad 32 of medical grade adhesive. This is shown as circular but could be oval or of any other suitable shape. The pad 32 may be made of the materials as are mentioned in the succeeding paragraph. A film 34 of synthetic plastics material overlaps one surface of the pad 32. The other surface is intended for direct application to the skin of a wearer, surrounding the exit point from the body of the catheter 36. A pair of tape or strip members 38A, 38B are attached to the film 34. The tapes are preferably synthetic plastics strips. They may be formed by a single strip 38 joined to the film 34 over an intermediate region 40. The join may be by adhesive or plastics heat welding or plastics RF welding. The pad 32 has a central hole 42 and this is connected to the periphery of the pad by a curved slit 46. The slit 46 extends completely through the thickness of the pad 32, the film 34 and the tape 38. It enables a catheter to be passed through the hole 42 without either end of the catheter having to be freed or disconnected. This is an essential requirement in some circumstances where a catheter is used. Any of the known medical grade pressure sensitive adhesives can be employed as the pad 32. Preferably, adhesive material 12 is formulated by blending one or more water soluble or swellable hydrocolloids with a polyisobutylene or a mixture of polyisobutylenes or a mixture of one or more polyisobutylenes and one or more non-acrylic elastomers. Other materials can be included within the adhesive formulations such as mineral oil, tackifiers, antioxidants, cohesive strengthening agents, and pharmaceutically active materials such as anti-inflammatory agents, antiseptics, or materials having skin healing or soothing properties. Suitable adhesive formulations are taught by Chen in U.S. Patent 3,339,546, Chen et al in U.S. Patent 4,192,785, Pawelchak et al in U.S. Patent 4,393,080, Doyle et al in U.S. Patent 4,551,490 and by Keyes et al in U.S. Patent 4,762,738. As disclosed in these references, suitable water soluble and water swellable hydrocolloids include sodium carboxymethylcellulose, pectin, gelatin, guar gum, locust bean gum, gum karaya, and mixtures thereof. Suitable cohesive strengthening agents include water-insoluble cross-linked sodium carboxy-methylcellulose, water-insoluble cross-linked dextran, etc. Suitable non-acrylic elastomers include butyl rubber and styrene radial or block copolymers such as styrene-butadiene-styrene (S-B-S) and styrene-isoprene-styrene (S-I-S) block type copolymers. Multi-use refers to the ability of the adhesive to retain its tack after it is peeled from a surface so that it can be refastened. Such adhesives are commercially available, for example from the 3M Company, and are employed in various products such as adhesive tabs on diapers. An area of the tape 38 (the area being indicated by dots in Figure 1) is coated with a multi-use adhesive. At each end of the tape is a tab 44A, 44B, which may be coloured differently from the remainder of the tape 38 or may be of a different material. Alternatively, the tab may be formed by attaching a facing to the tape 38 over the areas 44A and 44B. The tabs are non-adhesive and in use are gripped to peel apart the adhered tapes 38A, 38B. As will be seen, the bulk of the area of the tape 38A is free of adhesive; this allows the tapes 38A and 38B to be peeled apart. In use, as indicated by the arrows A in Figure 2, the two tapes 38A and 38B can be folded up to encase a catheter 36 which extends out of the wearer's body substantially perpendicularly to the plane of the pad 32, so holding the catheter in the desired position (Figure 3). Although not shown in the Figures, the adhesive on the tapes 38A, 38B is normally covered with a strippable protective release paper or film, to avoid the adhesive picking up dirt or being degraded prior to use. In one preferred embodiment of the catheter holder illustrated in Figures 1-3, the pad has a diameter of about 80 to 100 mm, a thickness of about 0.8 to 2.0 mm, and the tapes are about 28 to 45 mm wide. The hole 42 may be about 7.5 mm in diameter, or such other value as may accommodate the required catheter, and the length of the tape 38 measured flat may be about 60 to 70 mm. Of this length, the tabs 44A, 44B, each occupy about 6 to 8 mm. These dimensions have been found satisfactory for a variety of applications, but of course the invention can be carried into effect in catheter holders which are either larger or smaller than these dimensions. In general, it is desirable that the width W (Figure 2) of the tapes should be about 4d to 6.5d, preferably 5d to 6d, where d is the diameter of the hole 42. The catheter holder shown in the Figures may be integrated with or securely connected to an ostomy coupling element constructed for co-operation with a complementary coupling element on a bile bag. The pad and bag are arranged so that the free end of the catheter empties into the bag. The resulting combination can be termed a "bile kit" and provides a means whereby bile may be drained from a patient into a bag, and the bag may be removed, emptied, and replaced with a fresh bag, all without disturbing the catheter and without detaching the pad 32 from the wearer. It will be understood that modifications may be made to the catheter holders particularly described and illustrated herein, without departing from the invention, and within the meaning of EPC Article 69 and its Protocol. For example, the tape members need not be of synthetics plastics material but could be of other material which could carry a suitable multi-use adhesive. The shape and positioning of the tape members on the pad 32 need not be precisely as illustrated. In certain circumstances it may be practical to dispense with the cover film 34. Gripping tabs other than those of the kind illustrated in the Figures may be utilized. Also, the holders are useful for securing other types of tubing, wires, etc., in addition to drainage catheters, to the patient as may be required.

Claims: A catheter holder which comprises a pad (32) of medical grade adhesive material having one surface for attachment to the skin of a wearer, tape means secured to the other surface of the pad and providing a pair of tape sections (38A,38B), which extend from said other surface and are aligned with each other, there being adhesive on a surface of at least one tape section (38A or 38B), characterised in that (a) a hole (42) in the pad between the tape sections is provided, through which the catheter (36) may be passed in a direction transversely of the pad (32), and (b) a surface (38A or 38B) of one tape section has multiple use adhesive thereon and faces towards the other tape section (38B or 38A) such that the facing surfaces of the tape sections can be temporarily adhered to each other on each side of the catheter to thereby encase the catheter and hold it in such a position that it extends transversely of the pad, the distal ends (44A, 44B) of the tape sections being free of said adhesive so that they can be used to facilitate peeling the tape sections apart and said adhesive also being arranged to adhesively engage the catheter to prevent longitudinal movement thereof relative to the pad (32). A catheter holder according to claim 1 in which the pad is slit (46) inwardly from its edge with the slit joining the hole. A catheter holder according to claim 1 or 2 in which the medical grade adhesive material (32) is a plastics adhesive material comprising a blend of a water soluble or water swellable hydrocolloid and a water insoluble viscous elastic binder. A catheter holder according to any preceding claim in which the width of either of the tape sections (38A, 38B) is from 4 to 6.5d where d is the diameter of the hole (42). A catheter holder according to claim 4 in which the width of the tape sections (38A, 38B) is from 5d to 6d. A catheter holder according to any preceding claim in combination with a catheter and a bag for receiving bile conducted into the bag via the catheter, the bag being designed to be held onto the wearer by the medical grade adhesive pad (32).

Inventors: HOLLANDS KEITH G M, PLASS RONALD ANDREW, HOLLANDS, KEITH G.M., PLASS, RONALD ANDREW
Applicants: SQUIBB & SONS INC, E.R. SQUIBB & SONS, INC.
Application year: 1990
Main classification: A61M25
IPC codes: A61M25