FR2594324A1 - Antalgic device for correcting lumbar lordosis - Google Patents

Abstract

Antalgic positioning device for lumbago, acting during sleep by atentuation of lumbar lordosis, by elevating, at the desired instant, the thighs of the subject. The invention comprises a pair of polyhedral thigh pieces 1 with a rectangular base, which are possibly collapsible or inflatable, and comprising an inclined gutter 2 on the upper face and a strap 3 for fastening to the thigh.

Description

ANALACTIC DEVICE FOR CORRECTION OF LUMBAR LORDOSIS
The present invention relates to an analgesic positioning device intended for people suffering from chronic or acute low back pain.

The patient, especially when he is hyperlordosed on the lumbar level, generally experiences difficulties in the lying position, in particular during his sleep.
Indeed, it is practically impossible for him to keep one of the following two analgesic positions overnight
- A / Position lying on the side, in which the legs are bent with the knees going up towards the chest;
- 6 / Position lying on the back, with the knees in flexion raised by a very thick cushion,
The presence of the cushion, useful in position B, becomes a discomfort when moving to position A there is even a risk of incorrect positioning, causing a lateral tilting of the pelvis and can aggravate the pain.

It is important to mention a third position C, in which the subject is lying on his stomach. This position, which is not particularly pain-relieving, should at least remain neutral from the point of view of the comfort it can provide.
In fact, the transition from position B to position C may cause or increase pain: in fact, the thick cushion, useful in position B, becomes a handicap in position C, insofar as it can cause a tilting of the pelvis backwards, therefore a painful hyperlordosis,
This thick cushion could, on the contrary, play a positive line in position C, provided that the subject places it under his belly n this therefore defines a third kind of analgesic position. But it is obvious that this operation cannot be carried out during the subject's sleep.

The object of the invention is to provide a synthetic solution, valid even during the subject's sleep, combining the advantages of successive analgesic positions and eliminating painful positions.
Knowing that the subject may lie successively on the back, on the side or on the belly, it is important that he is supported, when necessary, under the thighs or under the belly, without being bothered by the part of the device temporarily unused.

Remember that the painful positions, which should be eliminated, are, in the traditional context
- lying on your back with your legs fully extended;
- lying on the side with a cushion under the thighs;
- lying on the stomach with a cushion under the thighs
The object of the invention is achieved by means of an orthopedic device combining two types of complementary, independent and mobile accessories
- a pair of shorts whose function is to elevate the thighs of the subject when he is lying on his back;
- an abdominal belt whose function is to raise the stomach of the subject when he is lying on his stomach.

The invention is described in detail in the following text, with reference to the accompanying drawings, given by way of nonlimiting examples, and in which
- Fig. t shows a full shorts, seen in perspective;
- Fig. 2 shows a full shorts, seen in profile and in use;
- Fig. 3 shows a molded and hollow shorts, seen in perspective;
- Fig. 4 shows a folding shorts with adjustable inclination, seen in profile;
- Fig. 5 shows an inflatable short, seen in profile and in use;
- Fig. 6 shows an inflatable short, seen in section at the height of the strap (3);
- Fig. 7 shows a lap belt, side view and in use;
- Fig. 8 shows a semi-rigid abdominal belt, top view in section;
- Fig. 9 shows an inflatable abdominal belt, top view in section.

 The device shown in FIG. 1 is formed by a polyhedral shorts (1) with a rectangular base, the upper face of which is machined in the form of an inclined gutter (2) in which the user places the rear face of his thigh.

The shorts (i) are kept in contact with the thigh by means of a strap (3) elastic to the mott> s, comprising a fairly flexible and non-binding closure mode for blood circulation; this strap (3) may consist of two parts, attached on either side of the shorts (1), or of a single part passing through the shorts (1).

To increase user comfort, the two ends (4) of the gutter (2) are slightly rounded, in order to remove the angles,
The thickness of a shorts (1) is close to that of a medium-sized thigh: thus, when the user turns to the side, no excess thickness comes to hinder him by modifying the natural position of his legs, The density of the material constituting the shorts (1) is determined so as to also be able to succeed in the reverse maneuver which appears a priori more difficult: when, starting from the position lying on the cet4, the subject returns to the lying position on the back, the shorts (i) must raise the thighs again to keep the legs slightly bent in order to reduce lumbar lordosis
Fig. 2 shows a shorts (i), seen in profile and in use, with the strap (3) attached around the thigh of the subject.

 Fig. 3 shows another embodiment of the shorts (1), made of molded plastic material and hollowed out in the middle: the gutter (2) is supported by feet (5) connected to a sole (6) distributing the load.

 Fig. 4 shows another embodiment of the shorts (1), folding, to facilitate transport, and with variable inclination the feet (5) supporting the gutter (2) are articulated at their upper end and the inclination of the gutter (2) is adjusted by the position of the lower end of the feet (5) in a rack (7).

Figures 5 and 6 show another embodiment of the shorts (1), consisting of an inflatable envelope (8) disposed under the thigh and held by at least one strap (3). This type of shorts (t) is particularly space-saving for transport; it is also, at will, adjustable in height depending on the volume of air or liquid introduced into the envelope (8) o
The device shown in FIG. 7 constitutes an abdominal belt (9), intended to attenuate the lordosis of the subject when the latter is lying on the belly, It only includes an extra thickness (10) on the front, so as to create none when the user turns on the side or on the back,
The abdominal belt (9) is quite large, about 15 to 20 cm, in order to distribute the weight of the body over a sufficient surface. Indeed, the anterior extra thickness (10) is intended to compress partially under the weight of the body, as shown in FIG. 7.

According to a first embodiment, the anterior extra thickness (io) is constituted by means of a cushion (ii) of roughly cylindrical shape, composed of a semi-rigid material of suitable density and inserted inside the belt ( 9), as shown in Jo Fig. 8
According to a second embodiment, the anterior excess thickness (10) is constituted by means of an inflatable envelope (12), incorporated in the belt (9), as shown in FIG, 9, and which can be filled with air or liquid, which gives an adjustable height at will,

Claims (6)

 1) Analgesic positioning device in case of low back pain characterized in that it comprises a means intended to relax and correct the lumbar spine, and in that this means is provided for tilting the pelvis backwards when the user is lying down on the back.  2) device according to claim 1 characterized in that the means for tilting the pelvis towards the back consists of a pair of polyhedral shorts (1) with a rectangular base each of which comprises, on its upper face, a gutter ( 2) inclined, in order to receive the rear face of a thigh therein, and in that each shorts (1) is provided with at least one strap (j) intended to hold it.  3) Device according to claims 1 and 2 characterized in that the gutter (2) is machined so as to remove the angles at its ends (49.  4) Device according to claims 1, 2 and 3 characterized in that the means for tilting the pelvis backwards, when the uJet is lying on the back, consists of a pair of shorts (i) made of material molded and comprising a full gutter 82) supported by feet (5) cooperating with a full sole 869 which distributes the load.  5) Device according to claims 1, 2 and 3 characterized in that the means for tilting the basin backwards consists of a pair of folding cookeards (1) and with variable inclination, the feet (39 supporting the gutters ( 2) being articulated at their upper end and adjustable in a swivel (7) at their inI'iors end.  6 Device according to claims 1 and> characterized in that the means for tilting the pelvis backwards consists of a pair of inflatable envelopes 8), each of which is arranged under a thigh and held by at least one strap ( 3).