DE2837679A1 - FIXED OPENER FOR A ROUND PERMANENT OR PLASTER CAST - Google Patents

Description

PATENT LAWYERS

DIPUOg-RWIRTH-Dr-V ₁ SCHMiED-KOWARZlK Dlpl.-lng. G. DANNENBERG Dr. P. WEINHOLD Dr. D. GUDEL

TELEPHONE: C089) ^ * "^ SIEGFRIEDSTRASSE 8

335025 8000 MUNICH 40

. SK / SK

Case 1396

AB Stille-Werner

Fack

S-981 01 Örnsköldsvik / Sweden

Fixed opener for a round duration ™ resp. plaster cast

Doctors and orthopedic surgeons are different Types of fixed dressings used for external fixation of fractures. The type of farmer franchise used depends on various factors, above all of course the availability of the basic materials. Plaster of paris bandages have been used for many years, and are probably still in use today prevails. A plaster cast is made up of plaster of paris and a reinforcing one Material, usually gauze. The gauze (e.g. EL gauze) is pre-impregnated with the dry or non-hydrated plaster of paris and after soaking or immersion in warm water applied around the corresponding extremity. The plaster of paris hardens and thus, together with the reinforcement, forms a stiff, sufficient strong bandage, namely a round shell or shell shaped according to the part of the body that is supporting it needed.

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More recently, materials other than plaster of paris and gauze have proven useful for fixing fractures. So in some cases plastic in various forms has replaced the plaster cast «, also other types stronger and lighter Materials such as cellulosic fiber and sheet material been used as permanent associations. In the following, the term "permanent dressing" refers to all such types of Associations whose function and application have been described above.

When removing permanent dressings, especially rounds Plaster casts are created for the patient and medical staff often problems. Since the round permanent bandage rests closely on the skin, its accessibility from the outside is poor} which is why there is always a risk of patient injury when removing the bandage. Next prepares most Patients with removal of the permanent bandage according to current procedures experience varying degrees of discomfort. Usually

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the round permanent bandage or plaster of paris is cut open or slit open Risk of injury or other inconvenience mentioned above introduce",

The present invention solves problems; which during the removal of dataer associations arise “by on a wire cutter is applied to the extremity, which is provided with a protective cover ". Cutting device and Protective covers are arranged so "that they can see along the. Extend the length of the bandage, then the permanent association the usual way, the cutting device,

preferably one or more spikes, teeth, etc. Wires ("serrated wire"), protrude from both ends of the permanent association and can be simply To be attached to handles. When removing the permanent bandage "both handles are gripped, and the Bandage is opened with a forward and backward motion. The above-mentioned fitting is used for protection against. Injuries to the underlying skin. This protection. The case consists of a tape, a film, a tube or cylinder made of plastic or metal, which is attached all have proven to be fully satisfactory during the clinical trials carried out according to the invention.

Another construction or arrangement of the toothed wire is built into the (in this case prefabricated) permanent bond and is molded onto the body part requiring support by softening. After that the bandage hardens, the ends of the serrated wire can also be easily attached to special saw handles. If the permanent association in both Constructions is created because of its support function, the wire ends are bent back and attached to the bandage. this is expediently done by using the protective tape closest to the skin. This tape is as long as that serrated wire, so that the wire ends can be easily fixed in place.

Another feature of the present invention relates to a wire made of a suitable tensile material ₈ which is attached to the permanent bandage in the same manner as the serrated wire

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will. However, it serves as a tear-open wire and has irregularities at regular intervals along its length. The shape of the irregularities is less important; the main claim is to weaken the permanent bond along the embedded wire.

To open the permanent bandage, the wire must be pulled through the weakened bandage wall. You can also do several Embed wires of the type described here in the same place. In this case, the wires are torn up one by one, so that each wire cuts part of the bandage until it finally opens. These wires can be attached to different Places along the bandage to be embedded so that the latter can be opened along several sutures.

1 shows a permanent bandage with an embedded opener 2 for a round bandage applied to an arm.

? Fig. 2 shows a permanent bandage as in Fig. 1, but with the saw handles 4 attached to each end of the cutting wire 2 and the opening of the bandage is in the initial stage.

3 shows a cross section of the opener for round permanent bandages in the form of an applied cutting wire on a part of the body, which is a protective cover directly over the skin has o

In Fig, 1 the permanent bandage is shown in finished form _s which is applied via an arm 3 and covering the elbow joint. The opener for the round Dau @ rv @ rband is determined in advance to the arm created oad _s dam is attached to the Association about "

The toothed wire 2 is placed in a protective tape 3, which acts as a protective cover directly on the skin. On the other On the side of the toothed wire, another cover tape 6 is attached, which is in direct contact with the permanent bandage (here a round plaster cast) stent.

The ends 7, 7 ^{1 of} the toothed wire are shown in different ways in FIG. One end 7 is firmly attached to the underside of the (plaster of paris) bandage to be out of the way for the duration of the plaster bandage. The other end 7 'has just been pulled out and the saw handle can now easily be attached to it. A handle is attached to each end of the wire.

Fig. 2 shows the opening process of a permanent bandage (round plaster cast) that has begun, by means of the toothed wire 2 with the handle 4 and 4 ¹ at each end, to saw manually through the bandage by means of a sawing movement by grasping the saw handles and under a certain amount of stretching of the toothed wire pulls it back and forth. In many cases it is advantageous if two or mehrer® perforated, embedded in permanent union wires are present to form two or more locations a continuous slot. It should be noted that the removal of the permanent dressing is much easier if it is sawn through in two or more places instead of just one

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3 shows a cross section through the opener for a round permanent bandage, in particular the part which is embedded in the permanent bandage itself. Next to the skin is a base plate 3, which can have an adhesive on both sides in order to hold the toothed wire in place and also to be placed on the skin. A removable protective tape 10 is a temporary protection for the adhesive layer 9 of the base plate. The serrated wire 2 is placed on the base plate _t In one embodiment, it is surrounded by a plastic tube or cylinder. 11 In certain cases it has been found useful to place the toothed wire directly on the adhesive layer of the base plate and to cover it with a surface layer 6. In other cases it may be square to leave the plastic tube or plastic tube in place and cover it with a surface layer that in both cases also covers the base plate.

v ^: Figs. 4 to 6 show examples of different serrated wires

("Serrated wire")

A preferred arrangement according to FIG. 4 consists of a wire 8 with a diameter of about 0.4 mm, which is closely with a another wire about 0.15 mm in diameter is wrapped, the distance between the windings being about 1 mm. In Fig " 5 are two thick wires (which, as described above, however are wrapped tightly with a thinner wire) in turn wrapped around each other, the distance between the windings about 7 to 10 mm. The wire material can be stainless Steel or steel seam and is useful with a

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ORIGINAL INSPECTED

corrosion-inhibiting outer layer covered.

Fig. 6 shows another wire shape with a diameter of about 1 mm, the wire being rolled and attached to the one shown Way is sharpened. The wire is first provided with grooves and ridges by rolling or bending, whereby the blunted ones Elevations are sharpened, so that one obtains a wire with grooves 12 ″, which with sharpened cutting edges 13 alternate.

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Claims (5)

Claims. 1.- Fixed opener (1) for a round permanent or plaster cast in the form of a shell formed around a part of the body, characterized in that it consists of one or more flexible tension wires (2) which are placed under the permanent bandage, exists and has irregularities, so that the bandage material opened by sawing movements of the wire or wires can be. · 2. ~ Fixed permanent bandage opener according to claim 1, characterized characterized as having one or more wires with irregularities includes, which are applied in permanent bandage in the immediate vicinity of the body part. ,: 3.- Fixed permanent bandage opener according to claim 1 and 2, characterized in that it is equipped with a protective device for the · Body part is provided, which consists of a band (3) and / or plastic or metal hose or cylinder, which placed against the surface of the body part under the wire or wires. 4 · - Fixed permanent bandage opener according to claims 1 to 3 »characterized in that the cutting device is longer than the permanent bandage and is provided with handles (4) which are fastened to each end (7)» (7 ¹ ) of the cutting device. 5.- Fixed permanent bandage opener according to claim 1 to 4, characterized in that it comprises a wire (8) which is tightly wrapped with a 'wire (9) which has a diameter less than half the diameter of the first-mentioned wire hsrt ₈ wherein the Distances between the windings at least equal to that 909810/0942 Diameters of the coarser wire are. 6, - Fixed Dauerverbandöffner according to claim 1 to 5, "characterized in that the .umwickelte with a thinner wire (8), coarser wire (9) in turn disgusted with one or two similar environmentally \ L wires to form a toothed wire ( 10) is wrapped. 7 · - Fixed permanent bandage opener according to claims 1 to 4, characterized in that characterized in that it comprises a wire (11) having rolled or bent grooves (12) with sharpened cutting edges (13) alternate. The patent attorney: 909810/0942