US721812A - Hernial-truss pad. - Google Patents

Description

No. 721,812. PATENTED MARS, 190s. P. A. LORENZ. HERN'IAL muss PAD.

APPLIOATION FILED APR. 27, 1901.

NO MODEL.

' EErc.

PATENT PAUL ARTHUR LORENZ, OF DRESDEN, GERMANY.

HERNlAL-TRUSS PAD.

SPECIFICATION forming part of Letters Patent No. 721,812, dated March 3, 1903.

' Application filed April 27,1901- Serial No. 57,804. (No model.)

To (ZZZ whom it may concern.-

Be it known that I, PAUL ARTHUR LORENZ, a subject of the King of Saxonyg'residing at Dresden, Saxony,German Empire, (and of the firm of Maximilian Rost, of Gorlitzerstrasse 28,) have invented a certain new and useful Improved Cushion or Pad for Trusses and Similar Instruments, (for which I have made application for Letters Patent in Germany, under L.14,774, VIII/30, and-L.14L,773, VIII 30, both dated October 5, 1900,) of which the following is a specification. r

This invention relates to cushions or pads for trusses and similar instruments, according to which the part for fixing the trussspring-a plate attached over the center of the cushion-is connected with the circum ference of the latter by spring-supports. Such, construction allows a certain amount of spring play between the fixing part and the cushion, not only in a vertical direction or in a determined plane, but also a universallyyielding mobility between the fixing part or holder and the cushion. The cushion therefore can approach the holder under the yielding action of the springs, and besides that it can oscillate about its part of support in any desired plane in such a manner that it returns after each movement to its proper position. Consequently the cushion (the object of which is to press upon a certain part of the body without unduly incommoding the patient by exerting too heavy a pressure) acts in a completely-satisfactory manner by being able to follow the movements of the corresponding part of the body without leaving its proper position thereon and without the risk of displacing the truss-spring. Unlike previous devices with movable cushions, no special auxiliary bandages are necessary in the present case for securing the proper position.

The device forming the object of the present application is distinguished from a previous device having radial springs on the back of the cushion-body and a ball-joint by the fact that the improved form of radial springs renders the use of the ball-joint unnecessary, and their outer ends do not press upon the flesh at the edge of the orifice of protrusion.

Several modifications of the invention are illustrated in the accompanying drawings.

'shown in Fig. 2.

Figures 1, 2, and 3 show some forms of construction with a rigid cushion-body.

In Figs.l to 3, a represents a cushion with a solid body (of metal or any other suitable material, which can of course be provided with a soft covering or padding) having the shape of a dish or cap. 6, Fig. 2, is the end of the truss-spring, and b the plate serving for the connection of the truss-spring to the cushion. This plate I) is in all three modifications yieldingly suspended over the center of the cushi'ouand is connected with the circumference of the latter by radial springs.

According to Figs. 1 and 2 the springs d are flat springs. the plate I) or with the cushion a. In all cases they engage with the edge of the cushion and are bent or curved between the latter and the plate I) in order to give the necessary flexibility. By pressing vertically upon the plate I) all the springs (the number of which may be as desired) yield in a uniform manner; but also a universal oscillating movement of the cushion toward the plate I) is possible, as the springs under a suitable strain will on one side he submitted to pressure and on the other side to tractive force.

The springs d, Fig. 1, have to take up besides pressure and tractive force due to oscillating motion also the vertical pressure exerted by the springe on the cushion. With regard to said pressure these springs can be supplemented by a special spring or springs inserted between the plate I) and the body of the cushion a. For this purpose a special spring for instanceis arranged, as

The spring f, Fig. 3, arranged in the same manner, has to take up almost the whole of the vertical pressure, as instead of the fiat springs (1, Figs. 1 and 2,

spiral springs d are arranged between the plate b and cap a, which springs engage eyes or securing means thereon. In case of vertical pressure upon the plate I) the springs 01' are also stretched to a small extent; but the spring f has to take up the largest amount of the pressure.

The connection of the truss-springie tothe plate I) may be adjustable, to which endlong slotst' t" 11 are formed in the plate I), and clamping-screws is, Fig. 2, are provided to connect the parts. According to this figure They can also be integral with the slots i't' are used as the attachment-slots, and when the slots 2' and t" are employed the cushion is moved back to the extent of one slot. By giving a curved form to the slots an adjustment of the cushion in the plane of the plate I) is possible.

In the constructions shown in Figs. 1, 2, and 3 the free space in the hollow of the cap a allows the necessary space for the play of the springs.

The construction hereinbefore described has the advantage, as already stated in the preamble of the specification, that under all circumstances the cushion, owing to its uniniversal mobility or flexibility, can yield and particularly during movements of the body, and at the same time has a tendency to return to its proper position with regard to the truss-spring, while the truss-spring, with the plate I), constantly remains in the normal position.

The outward shape of the cushion can vary and may be in accordance with requirements of oval, round, conical, or other shape.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a truss, the combination with the rigid concavo-convex body, the plate to which the truss-spring is secured, and the springs connected to said plate and body, whereby the plate is yieldingly suspended centrally above the concavity of the body; substantially as described.

2. In a truss, the combination with the rigid concavo-convex body portions, a plate to which the truss-spring is secured and the radial springs connected to the plate and edge of the body, whereby the plate will be suspended centrally above the hollow space of the body and be free to yield in radial as well as axial directions; substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

PAUL ARTHUR LORENZ.

\Vitnesses:

CH. HUGO DUMMER, KARL GREIERT.

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