JPH0268071A - Wound infusion and/or drainage device - Google Patents

Abstract

PURPOSE: To avoid a contact with an injury and simultaneously to improve flexibility to follow the outline of a patient's body by providing the device with a micro-porous adhesive member with an opening to match with the injury in attaching this device on a wearer's body and a substantially hard hollow cylindrical member with first and second opening ends, which erects itself to keep a cover member in a position distant from an injure. CONSTITUTION: This evacuation device includes an adhesive member A designed so as to tightly fasten on an injury on patient's skin. A hollow cylindrical collar B made of a hard to semihard material is mounted as a cylindrical member on the upper face of the adhesive label A. An inlet port 10 and an outlet port 12 are connected with tubes to pour liquid into the collar B and to evacuate liquid from the inside of the collar B so as to enable to affuse an injury. When the device is used only for evacuation at an injury, the both ports 10 and 12 are sealed by a liquid-tightly plug. Additionally to that, it is preferable to fuse an evacuation tube 20 to a prescribed position of a flexible mounting means D so as to enable to evacuate liquid from an injury.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wound irrigation and/or drainage device, more particularly a self-supporting collar that protects the wound from contact, a flexible attachment that allows the adhesive member to be easily adapted to the contours of the body. relates to a wound irrigation and/or drainage device using a novel cover member designed to allow means and optionally a catheter to be inserted into the wound.

Prior Art and Problems to be Solved by the Invention Certain wounds, especially postoperative wounds and ulcers, thermal burns,
In the treatment of skin disorders such as sores, it is desirable to irrigate the affected area with a liquid such as a disinfectant or hyperbaric oxygen. Additionally, certain 011 wounds require regular drainage. Various devices have been proposed for these therapeutic uses. Such devices are designed to be placed around the affected area on the patient's body for extended periods of time, allowing for periodic irrigation and/or drainage. However, in order to observe a wound, it is often necessary to visualize the wound, and for this reason devices of this type are usually provided with a transparent part that allows observation of the affected area.

OBJECTS OF THE INVENTION A first object of the invention is to provide a wound irrigation and/or drainage device that is flexible enough to avoid contact with the wound and at the same time adapt to the contours of the patient's body.

Another object of the present invention is that even when considerable external forces are applied,
The present invention provides a wound irrigation and/or drainage device having a rigid or semi-rigid collar member that avoids contact with the wound.

Yet another object of the present invention is to provide a wound irrigation and/or drainage device with a collar member attached for increased flexibility.

Yet another object of the invention is to provide a wound irrigation and/or drainage device that can be used on irregularly shaped wounds.

Yet another object of the invention is the provision of a wound irrigation and/or drainage device having a novel cover member into which a catheter or similar tube can be inserted.

Yet another object of the invention is to provide a wound irrigation and/or drainage device in which the cover member includes means for sealing its surface with an inserted catheter tube.

It is a further object of the present invention to provide a wound irrigation and/or drainage device which is comprised of relatively simple and inexpensive parts, the parts working together reliably to ensure long-term use.

The present invention provides a wound irrigation and/or drainage device that satisfies the above objectives. The device of the invention includes a flexible adhesive member having an aperture that can align with a wound when the device is attached to the wearer's body. a substantially hollow cylindrical member (body member) having first and second open ends;
Means are provided for attaching one of the open ends of the cylindrical member to the adhesive member in alignment with the aperture. A cover member is also provided and means are provided for removably attaching the cover member to the other open end of the cylindrical member to define a substantially liquid-tight chamber communicating with the opening. Furthermore, the fluid-tight chamber is provided with at least one fluid inlet. The cylindrical member constitutes the main body of the device and consists of self-supporting collar means to avoid contact with the wound.

This self-supporting collar means is preferably in the form of an upright wall.
A substantially cylindrical rigid or semi-rigid element. The liquid inlet may be provided in the upright wall.

The means for attaching the cylindrical member to the adhesive member is a substantially flexible sheet attached to one end of the cylindrical member. The sheet surrounds the aperture and is bonded to the adhesive member. The sheet is preferably bonded to the adhesive member at a point spaced from the aperture. The liquid inlet may be provided in the flexible sheet. .

The flexible sheet preferably includes an expander.
bLemeans) and is attached around the cylindrical member. the inflatable means has an accordion fold;
The fold extends outwardly from the periphery of the cylindrical member and then inwardly into the adhesive member.

Preferably, the cover member has a transparent portion. Alternatively, the surface of the cover member may be provided with an aperture for receiving the tube therethrough. In this embodiment, the cover member includes means for sealing the surface to the tube. Additionally, means may be provided for joining the sealing means to the tube. Such means may have the form of an adhesive tape or the like.

The cover member includes a relatively rigid portion to which the removable attachment means is joined, a relatively flexible portion, and an opening in the flexible portion capable of receiving the tube. The relatively rigid portion preferably has a substantially annular shape with a relatively large central opening. The soft part is located at the center opening.

In one embodiment, the support means is substantially circular. In other embodiments, the support means is substantially oval-shaped.

Hereinafter, the apparatus of the present invention will be explained in more detail based on the accompanying drawings. Note that the same numbers in the figures mean the same parts.

FIG. 1 is an exploded isometric view of the wound irrigation and/or drainage device of the present invention; FIG. 2 is an exploded sectional view of the device of FIG. 1; FIG. 4 is a plan view of a preferred first example of the present invention having a body member with a circular cross section; FIG. 5 is a plan view of a second preferred example of the present invention having a body member of an oval cross section. 6 is a plan view of a cover member designed to receive a catheter tube; FIG. 7 is a cross-sectional view of the cover member of FIG. 6; and FIG. 8 is a diagram showing another example of an adhesive member. FIG. 2 is a cross-sectional view similar to FIG. 2;

As shown in Figures 1-4 and 8, the wound irrigation and/or drainage device of the present invention includes an adhesive member (e.g., an adhesive label) designed to adhere to the affected area of a patient's skin.
includes. A hollow cylindrical collar B is attached as a cylindrical member to the upper surface of the adhesive label A, and is made of a rigid or semi-rigid material (preferably a plastic material). Collar B has a lower open end facing label A and a cover member C.
has an upper open end to which is removably attached.

The lower open end of collar B is attached to label A by means of a flexible attachment.

Collar B is preferably formed by molding of a rigid or semi-rigid plastic material and has an integral inlet 10 and outlet 12. Tubes (not shown) can be connected to these inlets 10 and outlets 12 to allow liquid to be injected into or removed from the interior of collar B so as to irrigate the wound. If the device is to be used only for wound drainage, both ports 10 and 12 are sealed with liquid-tight plugs (not shown). In addition, the flexible attachment preferably welds the drainage tube 20 in place on the means to allow drainage of fluid from the wound.

Label A shown in Figures 1-4 consists of a base material 22 consisting of a thin layer of a polymeric material such as polyethylene or a breathable non-woven material such as non-woven polyester and a medical adhesive layer located on the underside of the base material 22. Includes 24. Adhesive layer 24 is comprised of known materials suitable for use on the human body. Adhesive layer 24
The adhesive layer 24 is preferably formed as a homogeneous blend in which one or more water-soluble or water-swellable hydrocolloid rubbers are intermittently dispersed in one or more pressure-sensitive viscous materials such as polyisobutylene. U.

S, Patent No. 3339546 and U, S of Cheno et al.
.

It may contain one or more thermoplastic elastomers and/or one or more water-swellable a-branch reinforcing agents described in Japanese Patent No. 4192785. To enhance comfort, the adhesive layer 24 can be formulated to be microporous as described in U.S. Pat. No. 4,427,737. Also, as the adhesive layer 24, Copeland's U, S, Patent No. 31210
Microporous acrylic adhesives such as those described in No. 21 can be used. Moreover, the label A is attached between the base material 22 and the adhesive layer 24 by Cheno's tJ, S, Patent No. 39.
It may have a foam layer as described in No. 72328.

The label A' shown in FIG. 8 consists of a medical adhesive layer 24 formed as described above and an adhesive layer 29 joining a flexible attachment means to the adhesive layer 24. Adhesive layer 29 need not be medical grade and may be a normal acrylic type adhesive.

Labels A and A' are provided with a pre-cut central opening 26 of relatively small dimensions. As is well known in the field of ostomy devices, these labels are designed to allow the doctor or nurse to enlarge the opening 26 to fit the shape of the wound before applying it to the patient's skin. In the case of label A, the base material 22 of label A can be extended up to the ring weld 28 that joins the flexible attachment means to the beam. In the case of label A', the size can be increased to near the edges of adhesive layers 29 and 24. Therefore, according to the configuration of the present invention, it is possible to form somewhat larger openings in both labels A and A', making it possible to adapt the device to relatively large and irregularly shaped wounds. This cannot be done with conventional equipment.

Collar B is preferably made from a rigid or semi-rigid plastic material. The walls of collar B have sufficient strength so that collar B can withstand any external forces that the patient might encounter without collapsing. Therefore, the wall thickness of collar B and the strength of the materials of construction should be selected such that collar B is completely self-supporting even when external forces are applied.

A flange 30 extends outwardly from the lower edge of collar B.

The lower surface of the flange 30 is joined to the upper surface of the flexible mounting means by conventional means, such as by welding or adhesive, to form a liquid-tight seal therebetween.

The upper portion of collar B has an outwardly extending flange 32 similar to flange 30. The upper surface of flange 32 is provided with a ring-shaped male interlocking member in a conventional manner, such as by adhesive. 34 are joined.

The interlocking member 34 is in a position to removably engage with a ring-shaped female interlocking member 36 forming the lower rim of the cover member C. Interlocking members 34 and 36 are conventional and their construction is such that they form a liquid tight seal. The male and female interlocking members may be interchangeable, eg, the female interlocking member may be attached to collar B and the male interlocking member may be attached to cover member C, if desired.

As is clear from FIG.
It is often the case that it becomes stuck. Base material 22 of label A
is itself fairly flexible, but when label A is fixed directly to collar B, the flexibility of label A and its ability to conform to the contours of the body is severely limited by the stiffness of collar B. Therefore, when collar B is attached to label A, the flexible attachment is attached via means so that collar B does not reduce the flexibility of label A and its conformity to the contours of the body.

The attachment means comprises an upper portion 38 consisting of a thin, flexible, liquid-impermeable sheet and secured to the underside of the flange 30 in a conventional manner (e.g. by welding or adhesive).
Forms a liquid-tight seal. The attachment means is that the lower portion 40 of the lever is secured by a ring weld 28 to the upper adhesive layer 29 of the label A' or to the top surface of the substrate 22 of the label A. Attachment means is an inflatable section 42 having an accordion fold 18 between the picture sections 38 and 40 of the arm.

Inflatable portion 42 is inflated as shown in FIG. 3 to allow label A to flex to follow the contours of the body. Attachment means portion 42 rotates outwardly around collar B and inwardly toward label A when folded as shown in FIG. The attachment welds the drainage tube 20 into the inflatable portion 42 of the lever so that when the patient lies down, fluid from the wound collects at the bottom of the lever and can be removed through the drainage tube 20. It's like (ζ, it's becoming.

The cover member C is usually provided with a transparent window 43, which allows observation of the wound. By removing cover member C from collar B, the wound can be accessed without removing label A from the patient's skin.

As shown in FIG. 4, a first preferred example of the present invention includes a collar B having a circular cross-sectional shape.

Notwithstanding the fact that in the present invention the aperture 26 of label A can be enlarged to a considerable extent, especially as a result of surgery,
If the wound becomes too elongated, the opening 26
may not be able to scale sufficiently to adapt. In this case, a second preferred example of the present invention shown in FIG. 5 can be adopted. That is, the collar B' and its parts as well as the aperture 26' of the label A' are each configured to have a substantially oval shape to accommodate extremely elongated wounds. All other parts of the second example shown in FIG. 5 are the same in function and structure as in FIG. 4.

An alternative cover member C' is shown in FIGS. 6 and 7, which can be used with the device of the invention. This cover member C'
is designed for use when a drainage tube or catheter must be inserted directly into a wound.

In the cover member C', instead of the transparent window part 43, there is an opaque or transparent window having a relatively large central opening 46.
A relatively hard plastic outer annular portion 44 is used. Adjacent to the opening 46, a circular member 48 made of soft plastic or the like is fixed to the upper surface of the portion 44. Circular member 48 has a central aperture 50 . Circular member 4
The diameter of the central opening 50 of 8 is smaller than the outer diameter of the catheter tube 52. Due to the flexibility of the circular member 48 and the size of its opening 50, the walls of the member 48 are directed upwardly and against the outer surface of the catheter tube 52 when the catheter tube 52 is inserted into the opening 50 from the bottom of the cover member C'. The use of adhesive tape 54 or the like to seal member 48 to the exterior surface of catheter tube 52 provides a reliable fluid-tight seal and further protects catheter tube 52 from being accidentally pulled away from the wound. It can be prevented.

The wound irrigation and/or drainage device according to the invention is thus sufficiently rigid to avoid contact with the wound even under external forces such as the weight of a blanket, and at the same time It will be appreciated that it is also sufficiently flexible to be comfortable to wear and to conform to the contours of the patient's body.

The objects of the invention are achieved by using a rigid or semi-rigid collar member that is completely self-supporting and sufficiently resistant to crushing due to external forces. The flexibility of an adhesive member (eg, an adhesive label) is based on the flexible attachment means used to attach the collar to the label and is not limited by the rigidity of the collar. Furthermore, according to the configuration of the device of the present invention, the label opening can be enlarged to a relatively large extent, so that the device of the present invention can be applied to fairly large wounds.

A second preferred embodiment of the invention is also particularly suited for use on elongated wounds.

The present invention also allows the catheter tube to be inserted directly into the wound by using a specially designed cover member. This special cover member consists of a very flexible member that allows the tube to be inserted and that fits tightly against the outer surface of the tube. Additionally, the cover member can be secured to the tube, forming a liquid-tight seal and preventing accidental withdrawal of the tube.

Although only a limited number of specific examples of the apparatus of the present invention have been described above, it will be obvious to those skilled in the art that many other modifications can be made. All such modifications that may fall within the scope of the invention as defined in the claims are intended to be protected.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an example of the device of the present invention, Fig. 2 is a sectional view of Fig. 1, and Fig. 3 is a sectional view showing the device of Fig. 1 assembled and attached to the skin of a wearer. , FIG. 4 is a plan view of the main body portion in FIG. 1, FIG. 5 is a plan view showing another example of the main body portion, FIG. 6 is a plan view showing another example of the cover member, and FIG. 7 is a plan view showing another example of the cover member. The sectional view of FIG. 6 and FIG. 8 are sectional views showing other attachment states of the adhesive member and the main body member,
A, A': Adhesive member consisting of base material 22 and adhesive layer 24 (
Adhesive label), B, B': Cylindrical member with liquid inlet 10 (color), c, c': Cover member, D2 upper part 3
8 and a lower part 40, the attachment having a fold line 18 is an inflatable means (flexible sheet), 26.26', 46.5
0: Opening, 34.36: Interlocking member. Patent Applicant: E.R. Squibb & Sons, Incorporated Representative: Patent Attorney: 1 person, Yama Bōgai FIG, 6 FIG, 7 0.8

Claims (1)

[Scope of Claims] 1. A wound irrigation and/or drainage device comprising: a flexible microporous adhesive member having an aperture that aligns with a wound when the device is attached to a wearer's body; a substantially rigid hollow cylindrical member having a second open end; inflatable means for attaching one of the open ends of the cylindrical member to the adhesive member in alignment with the opening; a cover member; the cylindrical member is substantially self-supporting, comprising means removably attached to the open end to form a substantially liquid-tight chamber communicating with the opening, and at least one liquid inlet in the liquid-tight chamber; Wound irrigation and/or drainage device, characterized in that the device is adapted to maintain the cover member at a distance from the wound by using the same method. 2. The apparatus of claim 1, wherein the cylindrical member is a substantially self-supporting upright wall. 3. The apparatus of claim 2, wherein the liquid inlet is located in the upright wall. 4. Claim No. 4, wherein the inflatable means for attaching the cylindrical member to the adhesive member is a substantially flexible sheet, one end of the sheet being attached to one end of the cylindrical member, and the other end of the sheet being joined to the adhesive member. The device according to item 1. 5. The device of claim 4, wherein the expandable means has accordion folds. 6. Claim 5, wherein the fold extends outward from the cylindrical member.
Apparatus described in section. 7. The apparatus of claim 4, wherein the substantially flexible sheet is bonded to the adhesive member so as to surround the aperture. 8. The apparatus of claim 4, wherein the substantially flexible sheet is joined to the adhesive member at a point spaced from the aperture. 9. The apparatus of claim 4, wherein the liquid inlet is substantially in the flexible sheet. 10. The apparatus of claim 2, wherein the inflatable means for attaching the cylindrical member to the adhesive member is a substantially flexible sheet attached to one end of the cylindrical member, the sheet being joined to the adhesive member. 11. The device of claim 1, wherein the cover member has a transparent window. 12. The device of claim 1, wherein the surface of the cover member is provided with an aperture for receiving the tube therethrough. 13. The apparatus of claim 1, wherein the cover member includes a relatively rigid portion joined to the removable attachment means, a relatively flexible portion, and an opening in the flexible portion for receiving the tube therethrough. 14. The device of claim 13, wherein the relatively rigid portion has a substantially annular shape with a central opening. 15. The device of claim 14, wherein the relatively soft portion is located in the central opening.