WO2003017866A2

WO2003017866A2 - Healthcare product

Info

Publication number: WO2003017866A2
Application number: PCT/EP2002/009258
Authority: WO
Inventors: Walter Degelmann; Stefan Hofmann; Peter Kreucher; Andreas Lauth; Joachim Thewalt
Original assignee: Lohmann & Rauscher Gmbh & Co. Kg; Koester Gmbh & Co., Kg
Priority date: 2001-08-21
Filing date: 2002-08-19
Publication date: 2003-03-06
Also published as: DE10164743A1; DE10164742B4; DE10140840B4; DE10140840A1; DE10164742A1; WO2003017866A3; DE10164743B4

Abstract

The invention relates to a healthcare product comprising a substantially strip-shaped support material, having at least one adhesive zone designed to produce a detachable adhesive connection to human skin, an additional product and/or a fastening zone of the same product. Said support material has at least one preferably elastic deformable zone, which preferably adjoins at least one adhesive zone, is not adhesive and yields under tensile stress.

Description

HEALTHCARE PRODUCT

The invention relates to a product for health care with an essentially web-shaped carrier material which has at least one adhesive zone designed for producing a releasable adhesive bond with human skin, a further product and / or an attachment zone of the same product.

Products of this type are used, for example, in the form of adhesive or fixing plasters for fixing wound dressings, infusion tubes, cannulas or electrodes. When using conventional products, skin irritation or detachment of the adhesive zone occurs in many cases if movements take place in the vicinity of the place of use, which are directed towards the skin, the further product or the attachment zone transferred tensile forces, which in turn cause detachment of the adhesive zone or skin irritation.

In view of the problems in the prior art described above, the object of the invention is to provide a product of the type described at the outset, which allows secure fixation without excessive stress on the skin, the further product or the fastening zone.

According to the invention, this object is achieved by a further development of the known products, which is essentially characterized in that the carrier material has at least one, preferably non-adhesive and preferably elastic, deformable zone which adjoins at least one adhesion zone and is flexible under tensile load.

This invention is based on the astonishingly simple realization that the tensile loads associated with movements in the area of the adhesive zone remain without influence on the adhesive zone itself if these tensile loads are absorbed with a suitable, flexible zone before they reach the adhesive zone.

It is particularly expedient if the resilient zone is elastically deformable, because in this way an expansion which has taken place under tensile load can be returned as soon as the tensile load is released, without warping or the like occurring in the carrier material. It is particularly important that the resilient zone of the product according to the invention is itself non-adhesive, because the adhesion to the skin, another product or the fastening zone would inhibit a deformation desired under tensile stress. Overall, by using the flexible zone, a reduction in the mechanical loads in the area of the adhesive zone during movements in the vicinity of this adhesive zone is achieved, so that possible irritations are correspondingly reduced when the adhesive zone is applied to the skin.

Furthermore, the possible connection point adhesion zone - skin is less stressed.

This reduces the risk of the adhesive zone coming off the skin. For this reason, when using products according to the invention with a tensile load zone without impairing the adhesive properties, the possible adhesive surface per skin can also be reduced. This also reduces skin irritation.

As with conventional products, the adhesion zone of products according to the invention can be achieved by means of an adhesive applied to the carrier material. Additionally or alternatively, provision is also made for the provision of adhesive zones in the manner of a surface adhesive fastener or Velcro fastener. When using Velcro fasteners, multiple use of products according to the invention is possible.

In the sense of further relieving the pressure on the adhesive zone, it has proven expedient if the adhesive zone has a lower flexibility or elasticity than the flexible zone, because in this way the occurrence of tensions in the area of the adhesive zone when this adhesive zone is applied to the skin further product or the fastening zone of the same product can be prevented. In a particularly preferred embodiment of the invention, the adhesive zone is essentially rigid under tensile loads.

The resilient or elastic zone of the product according to the invention can be made of a material that differs from the rest of the carrier material, such as an extrudate. In this case, the connection between the flexible zone and the adjacent zone of the carrier material can be made by extrusion, gluing and / or welding and / or by a releasable connection (e.g. Velcro).

In the context of the invention, however, it is also contemplated to use flexible zones which consist of the same material as the zones of the carrier material adjoining them. In this case, the desired properties of the flexible or elastic zone can be achieved by appropriate processing of the carrier material, such as by crimping, overstretching and / or shrinking.

The products according to the invention described so far can be used, for example, as wound covering fixings. When using products according to the invention As a hose fixation, it has proven to be particularly advantageous if two adhesive zones are provided, between which a flexible zone is arranged. In this case, the hose to be fixed can be arranged between the adhesive zones in the region of the flexible zone, so that the part to be fixed (here the hose) does not come into contact with the adhesive and therefore no contamination of this part and the otherwise necessary cleaning of this part Partly not necessary. Products according to the invention with a flexible zone arranged between two adhesive zones can also be used as a cannula or electrode fixation. In this case, the flexible zone expediently has an opening for the passage of the cannula or electrode. Then the cannula or electrode can be attached by "putting it over". In all the embodiments of the invention described so far, the flexible or elastic zone avoids the mechanical stress on the skin and the associated irritation. In addition, the adhesive / skin connection point is less stressed in these embodiments, which reduces the risk of the fixation detaching from the skin.

In addition, however, the use of products according to the invention is also intended for those applications in which a tensile load in the area of the adhesion zone is just desired. This is the case, for example, with nasal plasters that aim to enlarge the airways of the nose. When using products according to the invention in the form of nose plasters, an elastic zone is arranged between two adhesive zones and is used to apply a tensile load in the area of this adhesive zone, in order to ensure a permanent enlargement of the respiratory tract of the nose. When applying such a nasal plaster with at least one elastic zone, stretching this zone ensures that there is a permanent pull for the duration of wear, the respiratory tract through the nose is enlarged accordingly and thus the oxygen supply through the nose is improved.

According to a further aspect of the invention, the products according to the invention can also be used as wound dressings or joint dressings. In this case, a wound pad provided to cover the wound is also expediently arranged on the carrier material. The flexible or elastic zone is expediently arranged and / or between the wound pad and the adhesive zone overlaps the wound pad. In this case too, the flexible or elastic zone during movements reduces the mechanical stress on the skin and reduces the risk of possible skin irritation. Furthermore, the adhesive-skin connection point is also less stressed in this case, which reduces the risk of the wound dressing detaching from the skin. In this case, since the flexible or elastic zones are arranged in the immediate vicinity of the wound pad, the likelihood that the wound comes into contact with the adhesive or adhesive is reduced. When using products according to the invention in the form of wound or joint dressings, the adhesive area per skin can additionally be reduced, which further contributes to reducing the risk of skin irritation.

In particular, in cases in which the adhesive zone is achieved by applying an adhesive to the carrier material, it has proven to be advantageous if a cover element, such as an incision film, a plaster card or the like, is detachably attached to at least one adhesive zone, because such a undesired sticking of the product according to the invention away from the desired place of use can be reliably prevented.

Finally, products according to the invention can also be used in the form of elastic bandages. Elastic bandages are usually produced using elastic fibers in the backing material web, this backing material web being provided on one side with an adhesive coating. This can lead to skin irritation due to glue - skin contact. Furthermore, application difficulties arise due to adhesive-related high and irregular unwinding forces. Products according to the invention intended for use as an elastic bandage have a plurality of elastic zones arranged one behind the other in the longitudinal direction of the web-shaped carrier, preferably at approximately constant intervals, and adhesive zones adjacent thereto, preferably immediately adjacent to them. In the case of these products, the application difficulties described above can be avoided if at least one of the adhesive zones in the relaxed state of the elastic zone adjoining them overlaps an adjacent section of the carrier material and this adjacent section does not form an adhesive connection with the adhesive zone. This can be achieved particularly easily if the adhesive zones are realized in the form of Velcro fasteners. In this case, the adhesion zone overlapping the adjacent section of the carrier material can adhere an underlying layer of the elastic bandage can be achieved when this adhesive zone comes to lie next to the section of the carrier material that otherwise overlaps the adhesive zone when the elastic zone adjoining it and then an adhesive connection can be made with an underlying layer of the elastic bandage.

As can be seen from the above explanation, the invention

Products particularly suitable for use as wound covering fixation, tube fixation, cannula fixation, electrode fixation, nasal plasters, wound plasters, intermediate finger plasters, cross bandages, joint plasters, joint bandages and / or elastic bandages.

The invention is explained below with reference to the drawing, to which reference is expressly made with regard to all details essential to the invention and not detailed in the description. The drawing shows:

FIG. 1 shows a first embodiment of the invention in the form of a wound covering fixation,

FIG. 2 shows a second embodiment of the invention in the form of a hose fixation,

Figure 3 shows a third embodiment of the invention in the form of a cannula. Electrode fixation,

FIG. 4 shows a fourth embodiment of the invention in the form of a nose patch,

FIG. 5 shows a fifth embodiment of the invention in the form of a cross plaster,

FIG. 6 shows a sixth embodiment of the invention in the form of an intermediate finger patch, Figure 7 shows a seventh embodiment of the invention in the form of a wound plaster

FIG. 8 shows an eighth embodiment of the invention in the form of a wound dressing,

FIG. 9 shows a ninth embodiment of the invention in the form of an articular association,

Figure 10 shows a tenth embodiment of the invention in the form of a joint patch and

Figure 11 shows an eleventh embodiment of the invention in the form of an elastic bandage.

In the following explanation of preferred embodiments of the invention, corresponding parts of products according to the invention are designated by the same reference numerals.

FIG. 1a shows a top view of a wound covering fixation according to the invention, of which an exploded illustration can be seen in FIG. 1b.

The wound covering fixation shown in FIG. 1 comprises a web-shaped and rectangular carrier, designated overall by 10, a total of three adhesive zones 20, 22 and 24, and an elastic zone designated overall by 30.

The adhesive zones 20 and 22 extending along the shorter edges of the rectangular carrier 10 are realized in the form of an adhesive applied to the carrier 10. With a total length of the carrier of, for example, 300, 400 or 500 mm, these adhesive zones can have a width of approximately 20 mm. Eccentrically between the adhesive zones 20 and 22 there is provided an adhesive zone 24 in the form of a Velcro fastening for an interchangeable wound dressing, which extends approximately parallel to the shorter edges of the rectangular carrier 10 and has a width of approximately 10 mm, for example. This adhesive zone 24 is arranged at a distance of approximately 60 mm from the adhesive zone 20. Adjacent to the adhesive zone 24, the elastic zone 30 is arranged between the adhesive zone 24 and the adhesive zone 22. This elastic zone 30 is elastically deformable in the directions indicated by the double arrow 40 when subjected to tensile stress. As can be seen particularly clearly from FIG. 1 b, the elastic zone 30 comprises at its lateral edges two extruded connection areas for establishing a connection with the adjacent areas of the carrier material 10, the actual elastically deformable area 34 being arranged between these connection areas 32. This elastic region 34 is also formed in the form of an extruded material. With the aid of the elastic zone 30, tensile stresses occurring between the adhesive zones 22 on the one hand and 24 or 20 on the other hand are absorbed before they reach the adhesive zones, in order to contribute on the one hand to reducing skin irritation and on the other hand to detach the adhesive zones from the wound covering or To complicate skin.

In the hose fixation according to the invention shown in FIG. 2, a carrier 10 in the form of an elongated rectangular material web has two adhesive zones 20 and 22 extending along the longitudinal edges of the material web and an elastic zone arranged between the adhesive zones. In the embodiment of the invention shown in FIG. 2, the adhesive zones 20 and 22 are realized by an adhesive applied to the carrier material 10. The hose 50 to be fixed with the aid of the product according to the invention shown in FIG. 2 runs in the area of the material web 10 below the elastic, non-adhesive zone. For this reason, forces exerted on the product via this hose 50 initially lead to an elastic deformation of the adhesive zone 30 before they reach the adhesive zones 20 and 22, so as to reduce the risk of the hose fixation coming off the skin. Furthermore, the hose fixation shown in FIG. 2 largely prevents contamination of the hose 50 due to adhesive residues, because the hose 50 is arranged exclusively under the non-adhesive elastic zone 30 and thus only in exceptional cases with the adhesive or adhesive in the area of the adhesive zone 20 and 22 comes in contact ^'.

The product according to the invention shown in FIG. 3 in the form of a cannula or

Electrode fixation essentially corresponds to the product explained with reference to FIG. 1, the product shown in FIG. 3 not being in the form of a Velcro fastener. te adhesive zone and the elastic zone 30 is arranged in the center of the rectangular carrier 10. In addition, the elastic zone of the product shown in FIG. 3 has a central opening 36 which allows a cannula or an electrode to be passed through or allows this product to be slipped over a cannula or electrode. As can be seen particularly clearly in the top view according to FIG. 3a), one and two or more products according to the invention can be arranged on a common cardboard card.

The nasal plaster shown in FIG. 4a) comprises two adhesive zones 20 and 22 realized with the aid of adhesive applied to the carrier material, between which two elastic zones 30 and a central non-adhesive and also non-elastic region 12 of the carrier material are arranged.

In the case of the nasal plaster shown in FIG. 4b), only one elastic zone 30 is applied in the center of the product between the adhesive zones 20 and 22. If the nasal plasters shown in FIG. 4a) or 4b) are applied in such a way that with the aid of the elastic zones 30 there is a permanent tensile load in the area of the nasal opening. In this way, a permanent enlargement of the respiratory tract of the nose can be ensured and the oxygen supply through the nose can be significantly improved.

The product according to the invention shown in FIG. 5 in the form of a wound dressing is realized in the form of a so-called cross dressing and, in addition to the components explained with reference to FIGS. 1 to 4, also has a wound pad 70 intended for wound covering. In the embodiment of the invention shown in FIG. 5, this wound pad 70 is completely covered by the elastic zone 30, which serves to reduce tensile loads acting on the adhesive zones 20 and 22. According to FIG. 5a), a cross bracing according to the invention can also be detachably arranged on a card 60.

According to FIG. 6, a wound dressing according to the invention can also be implemented in the form of an intermediate finger plaster. In the case of this product, the carrier material 10 has two indentations 14 which extend inwards and opposite one another and which, in order to adapt the plaster to the anatomical conditions, serve the finger area. Similar to the product explained with reference to FIG. 5, the product shown in FIG. 6 comprises a web-shaped carrier 10 with two adhesive zones 20 and 22, a wound pad 70 and an elastic zone 30. In the embodiment of the invention shown in FIG. 6, the elastic zone 30 projects laterally beyond the wound pad 70. This provides additional protection for the wound which is usually arranged under the wound pad 70, because in this case the risk of contamination of the wound with the adhesive of the adjacent adhesive zone 20 is reduced.

According to FIG. 6a), two intermediate finger plasters according to the invention can be arranged on a common card 60.

FIG. 7 shows a plaster card with a total of four wound plasters, each of which has a web-shaped carrier material 10 with two adhesive zones 20 and 22, an elastic 30 and a wound pad 70. In the embodiment of the invention shown in FIG. 7, too, the elastic zone 30 projects beyond the wound pad 70 in the lateral direction. In addition, the card 60 of the embodiment of the invention shown in FIG. 7 is equipped with an adhesive tape 80 on its lateral edge. Furthermore, this plaster card has a perforation 90 running parallel to its shorter edges, which allows a card section having two plasters to be separated.

The embodiment of the invention shown in FIG. 8 essentially corresponds to the embodiment explained with reference to FIG. 7, the elastic zone made of an extruded material being additionally color-coded in the product according to FIG. 8 in order to distinguish it clearly from the wound pad 70.

The product according to the invention shown in FIG. 9 in the form of an articular plaster roughly corresponds in shape to the product explained with reference to FIG. 5. As a significant difference between the product shown in FIG. 5 and the product shown in FIG. 9, it should be emphasized that the product shown in FIG. 9 has two elastic zones 30 arranged on edges of the wound pad 70 that run parallel to one another. By providing two elastic zones, the transmission of tensile loads to the adhesive zones can be prevented particularly reliably. In addition, better protection of the wound from adhesive contamination is achieved in this case. The joint patch according to the invention shown in FIG. 10 essentially corresponds to the product explained with reference to FIG. 9, but has only one elastic zone 30.

FIG. 11 shows a product according to the invention in the form of an elastic bandage. Figure 11a). A top view of the elastic bandage, Figure 11b) a sectional view along the sectional plane bb drawn in Figure 11a) in the relaxed state of the elastic bandage, Figure 11c) a sectional view along the plane bb in the tensioned state of the elastic bandage, Figure 11 d) a sectional view along the section plane aa and FIG. 11e) a sectional illustration along the section plane cc shown in FIG. 11a).

As can be seen particularly clearly in FIG. 11b), the elastic bandage according to FIG. 11 consists of a plurality of overlapping carrier material sections, of which the carrier material sections III and IV can be seen in FIG. 1b). An elastic zone 30 of the carrier material section IV overlaps a zone of the carrier material section III that is not elastically flexible in the longitudinal direction of the elastic bandage. In this case, an outer edge region 32, which is attached to the carrier material section III as an extrudate, is fastened to the carrier material section III, while an edge region 36 of the elastic zone 30 running parallel thereto is fastened to a zone of the carrier material section IV that is not elastically flexible in the longitudinal direction of the elastic bandage. Adjacent to the elastic zone 30, the backing material section IV has a Velcro strip 24 which still overlaps the backing material section III in the relaxed state shown in FIG. 11b). When the elastic zone 30 is subjected to a tensile load and the length of this elastic zone 30 changes as a result, the Velcro strip 24 comes to rest next to the carrier material section III, as shown in FIG. 11c). By appropriate choice of the material of the carrier material sections it can be achieved that the Velcro strip shown in FIG. 11b) lies correctly against the carrier material section III, but presumably the tensioned state shown in FIG. 11c) comes into contact with a carrier material layer lying underneath. In this way it is achieved that the bandage is unwound and its use can be optimal. The compression required when using elastic bandages is achieved by stretching the elastic bandages Zones reached. By using Velcro systems, the bandage is reusable, which can be ruled out with conventional, adhesive elastic bandages. The transitions between the carrier material sections II and III, IV and V, V and VI as well as VI and VII are made in the same way as the transition between the carrier material section III and carrier material section IV explained with reference to FIGS. 11b) and 11c). At the edge of the carrier material section II an adhesive zone is provided in the form of an adhesive 20 applied to the carrier material. An initial fixation of the bandage can be achieved with this adhesive zone. Alternatively or additionally, an adhesive zone 24 in the form of an additional Velcro strip can also be provided on the opposite end of the bandage, as indicated for example in FIG. 11e).

The invention is not limited to the embodiment explained with reference to the drawing. Rather, the elasticity of the elastic zones 30 can be achieved not only by appropriate choice of material, such as by choosing an extrudate, but also by processing the actual plaster base, e.g. by crimping, overstretching and / or shrinking. The elastic material can be attached to the adjoining areas of the plaster base by extrusion, gluing, welding or similar processes. The products according to the invention can be provided in all commercially available shapes and sizes. Special carriers such as incision foils or fixation carriers equipped with an adhesive can also be used. Products according to the invention can also be provided with all commercially available donor processes, in particular using appropriate plaster cards.

Claims

Expectations

1. Product for health care with an at least one adhesive zone designed for producing a releasable adhesive connection with human skin, another product and / or a fastening zone of the same product, (20, 22, 24), essentially web-shaped carrier material (10), characterized that the carrier material (10) has at least one, preferably non-adhesive and preferably elastic, deformable zone (30) adjacent to at least one adhesive zone (20, 22, 24).

2. Product according to claim 1, characterized in that the at least one adhesive zone (20, 22, 24) has a lower resilience or elasticity under tensile stress than the resilient zone.

3. Product according to claim 1 or 2, characterized in that the resilient zone (30) is connected by extrusion, gluing and / or welding to an adjacent zone of the carrier material.

4. Product according to any one of the preceding claims, characterized in that the flexible zone (30) is produced by processing the carrier material (10), such as crimping, overstretching and / or shrinking.

5. Product according to one of the preceding claims, characterized in that at least one adhesive zone (20, 22, 24) has an adhesive applied to the carrier material (10).

6. Product according to one of the preceding claims, characterized in that at least one adhesive zone (20, 22, 24) ^{"is formed} at least in sections in the manner of a surface fastener or Velcro fastener.

7. Product according to any one of the preceding claims, characterized by at least two adhesive zones (20, 22), between which a flexible zone (30) is arranged.

8. Product according to any one of the preceding claims, characterized in that at least one flexible zone (30) has at least one opening (36) for the passage of a cannula, electrode or a hose.

9. Product according to one of the preceding claims, characterized by at least one wound pad arranged on the carrier material (70).

10. Product according to claim 8, characterized in that the flexible zone (30) is arranged between the wound pad and the adhesive zone (20, 22) and / or the flexible zone (30) overlaps an edge of the wound pad (70).

11. Product according to one of the preceding claims, characterized by at least one cover element detachably attached to at least one adhesive zone, such as an incision film, a plaster card or the like.

12. Product according to one of the preceding claims, characterized by a plurality of in the longitudinal direction of the web-shaped carrier (10) preferably at approximately constant intervals one behind the other arranged elastic zones (30) and adjacent adhesive zones (24).

13. Product according to claim 12, characterized in that at least one of the adhesive zones (24) in the relaxed state of the adjoining elastic zone (30) overlaps an adjacent section of the carrier material.

14. Product according to claim 13, characterized in that the adhesive zone (24) overlapping the adjacent section of the carrier material comes to lie next to this section when the adjacent elastic zone (30) stretches.