Compression product for the treatment of OSAHS
The elastic compression product for the lower limbs, featuring a tailored pressure profile, addresses the need to improve treatment efficacy for OSAHS by effectively reducing the Apnea Hypopnea Index (AHI).
Patent Information
- Application Number
- FR2024002899
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2040-03-18
AI Technical Summary
There is a continuing need to improve compression products for the treatment of Sleep Apnea Hypopnea Syndrome (OSAHS), as existing solutions have limitations in effectively reducing the Apnea Hypopnea Index (AHI).
The development of an elastic compression product for the lower limbs with a specific pressure profile that includes defined textile pressures at various altitudes, ensuring a pressure range of 35 mmHg > Pc > 10 mmHg and 30 mmHg > PE > 10 mmHg, which is designed to reduce the AHI.
The described pressure profile of the compression product effectively reduces the AHI, providing a significant improvement over existing compression products for the treatment of OSAHS.
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Abstract
Description
Title of the invention: Compression product for the treatment of OSAHS Technical field
[0001] The present invention relates to compression products for the treatment of Sleep Apnea Hypopnea Syndrome (SAHOS). Prior art
[0002] OSAHS is characterized by the occurrence, during sleep, of abnormally frequent episodes of interruption of ventilation (apneas), or of significant reduction of ventilation (hypopneas). It is linked to repeated collapse of the upper airways during sleep. Episodes of apnea and hypopnea lead to hypoxemia and micro-arousals.
[0003] The severity of SAHOS was defined by the French-speaking pneumology society (SPLF) based on the following two components: - the severity of daytime sleepiness (mild, moderate, severe), and - the apnea hypopnea index (AHI), defined by the number of apneas or hypopneas recorded per hour of sleep (mild: 5 < AHI < 15; moderate: 15 < AHI < 30; severe: AHI > 30).
[0004] In 2011, Redolfi et al. reported in the publication entitled "Attenuation of obstructive sleep apnea by compression stockings in subjects with venons insufficiency" that, in 12 non-obese venous insufficiency patients with OSAHS and an AHI > 15, daytime wearing of thigh stockings applying 20 mmHg to the ankle for one week reduced the AHI by 36% on average, the nocturnal decrease in leg fluid volume by 62% and the nocturnal increase in cervical perimeter by 60%.
[0005] In 2015, White et al. published an article entitled “Effect of below-the-knee compression stockings on severity of obstructive sleep apnea” which presented similar results.
[0006] There is a continuing need to improve compression products for the treatment of OSAHS.
[0007] One aim of the invention is to meet, at least partially, this need. Statement of the invention
[0008] The invention provides an elastic compression product for the lower limbs of a wearer, intended for the treatment of sleep apnea hypopnea syndrome, said product having a pressure profile defining textile pressures PB, PBi, Pc, Pd, PE, PF, PG, Ph, Pi, Pd', Pes Pf' and PG' at altitudes B, Bl, C, D, E, F, G, H, I defined in section 4.1.2 of standard NF_S_97_114, and at altitudes D', E', F' and G' situated respectively at 92% of altitude D, at 110% of altitude E, at 126% of altitude E and at 92% of altitude G, respectively, the pressures being measured as the compression pressures of compression stockings according to French standard NF G 30-102 part B, the pressure profile being such that 35 mmHg > Pc > 10 mmHg, 30 mmHg > PE > 10 mmHg and Pc > (Pb+ 10 mmHg).
[0009] Surprisingly, the pressure profile of a compression product according to the invention makes it possible to reduce the IAH.
[0010] A product according to the invention may also comprise one or more of the following optional and preferred characteristics: - the pressure profile has - a local pressure minimum at altitude B, and / or - a local pressure maximum between altitudes B1 and D', and / or - a local pressure maximum between altitudes F' and G', and / or - a local pressure minimum between altitudes D and E', and / or - a local pressure minimum between altitudes H and I; - Pc > (Pf + 8 mmHg); - 33 mmHg > Pc > 25 mmHg, preferably 32 mmHg > Pc > 26 mmHg, or even 30 mmHg > Pc > 28 mmHg; - 3 mmHg < PB < 15 mmHg, and PE< 13 mmHg, and PH < 10 mmHg; - 5 mmHg < PB < 13 mmHg, and PE< 13 mmHg, and PH< 10 mmHg; - Bp > 20 mmHg; And 30 mmHg > PE > 10 mmHg and Pc > (Pb + 10 mmHg); - 10 mmHg > MUAC > 2 mmHg, and / or 15 mmHg > PD > 5 mmHg, and / or 13 mmHg > PE > 5 mmHg, and / or 15 mmHg > PE- > 5 mmHg, and / or 10 mmHg > Pi > 2 mmHg; - 30 mmHg > PBi > 15 mmHg, preferably 28 mmHg > PBi > 18 mmHg, and / Or 30 mmHg > PD > 15 mmHg, preferably 28 mmHg > PD > 18 mmHg, and / or 25 mmHg > PF > 10 mmHg, preferably 23 mmHg > PF > 13 mmHg, or even 20 mmHg > P, or even 18 mmHg > P, and / or 25 mmHg > PG- > 10 mmHg, preferably 23 mmHg > PG- > 13 mmHg, or even 20 mmHg > PG- or even 18 mmHg > PG-; - the product does not extend beyond altitude I; - the product comes in the form of a kit comprising a pair of socks and a shorts; - the kit includes one or more of the following optional and preferred features:
[0011] 15 mmHg > PB > 3 mmHg, and / or 35 mmHg > PBi > 20 mmHg, and / or 35 mmHg > Pc > 20 mmHg, and / or 15 mmHg > PD > 5 mmHg, and / or 23 mmHg > PF > 15 mmHg, and / or 20 mmHg > PG > 10 mmHg, and / or 10 mmHg > PH > 2 mmHg, and / or 10 mmHg > ?! > 2 mmHg, and preferably 35 mmHg > PD- > 25 mmHg, and / or 15 mmHg > PF > 5 mmHg, and / or 23 mmHg > PF > 15 mmHg, and / or 23 mmHg > PG- > 15 mmHg. - the kit further includes one or more of the following optional and preferred features:
[0012] 15 mmHg > PB > 3 mmHg, and 35 mmHg > PB1 > 20 mmHg, and 35 mmHg > Pc > 20 mmHg, and 15 mmHg > PD > 5 mmHg, and 23 mmHg > PF > 15 mmHg, and 20 mmHg > PG > 10 mmHg, and 10 mmHg > PH > 2 mmHg, and 10 mmHg > Pi > 2 mmHg, and preferably 35 mmHg > PD- > 25 mmHg, and 15 mmHg > PE- > 5 mmHg, and 23 mmHg > PF > 15 mmHg, and 23 mmHg > PG- > 15 mmHg. - the kit includes one or more of the following optional and preferred features:
[0013] 12 mmHg > PB > 5 mmHg, and / or 30 mmHg > PBi > 25 mmHg, and / or 30 mmHg > Pc > 25 mmHg, and / or 12 mmHg > PD > 8 mmHg, and / or 20 mmHg > PF > 15 mmHg, and / or 17 mmHg > PG > 13 mmHg, and / or 7 mmHg > PH > 3 mmHg, and / or 7 mmHg > P, > 3 mmHg, and preferably 30 mmHg > PD- > 26 mmHg, and / or 12 mmHg > PE- > 8 mmHg, and / or 20 mmHg > PF > 15 mmHg, and / or 20 mmHg > PG- > 15 mmHg. - the kit further includes one or more of the following optional and preferred features:
[0014] 12 mmHg > PB > 5 mmHg, and 30 mmHg > PBi > 25 mmHg, and 30 mmHg > Pc > 25 mmHg, and 12 mmHg > PD > 8 mmHg, and 20 mmHg > PF > 15 mmHg, and 17 mmHg > PG > 13 mmHg, and 7 mmHg > PH > 3 mmHg, and 7 mmHg > P, > 3 mmHg, and preferably 30 mmHg > PD- > 26 mmHg, and 12 mmHg > PE- > 8 mmHg, and 20 mmHg > PF > 15 mmHg, and 20 mmHg > PG- > 15 mmHg; - the product has the shape of leggings, that is to say a one-piece compression product extending at least from the ankles to the hips; - the leggings, according to a first embodiment, comprise one or more of the following optional and preferred characteristics:
[0015] 10 mmHg > PB > 3 mmHg, and / or 25 mmHg > PBi > 15 mmHg, and / or 25 mmHg > Pc > 15 mmHg, and / or 15 mmHg > PD > 5 mmHg, and / or 15 mmHg > PE > 5 mmHg, and / or 25 mmHg > PF > 15 mmHg, and / or 15 mmHg > PG > 10 mmHg, and / or 10 mmHg > PH > 2 mmHg, and / or 10 mmHg > ?! > 2 mmHg, and preferably 25 mmHg > PD' > 15 mmHg, and / or 15 mmHg > PE- > 5 mmHg, and / or 25 mmHg > PF > 15 mmHg, and / or 25 mmHg > PG- > 15 mmHg; - the leggings, according to the first embodiment, also include one or more of the following optional and preferred features:
[0016] 10 mmHg > PB > 3 mmHg, and 25 mmHg > PBi > 15 mmHg, and 25 mmHg > Pc > 15 mmHg, and 15 mmHg > PD > 5 mmHg, and 15 mmHg > PE > 5 mmHg, and 25 mmHg > PF > 15 mmHg, and 15 mmHg > PG > 10 mmHg, and 10 mmHg > PH > 2 mmHg, and 10 mmHg > ?! > 2 mmHg, and preferably 25 mmHg > PD > 15 mmHg, and 15 mmHg > PF > 5 mmHg, and 25 mmHg > PF > 15 mmHg, and 25 mmHg > PG- > 15 mmHg; - the leggings, according to a second embodiment, comprise one or more of the following optional and preferred characteristics:
[0017] 10 mmHg > PB > 3 mmHg, and / or 30 mmHg > PB1 > 20 mmHg, and / or 30 mmHg > Pc > 20 mmHg, and / or 25 mmHg > PD > 15 mmHg, and / or 25 mmHg > PE > 15 mmHg, and / or 20 mmHg > PE > 10 mmHg, and / or 15 mmHg > PG > 10 mmHg, and / or 10 mmHg > PH > 2 mmHg, and / or 10 mmHg > Pi > 2 mmHg, and preferably 30 mmHg > PD- > 20 mmHg, and / or 25 mmHg > PF > 15 mmHg, and / or 20 mmHg > PF > 10 mmHg, and / or 20 mmHg > PG- > 10 mmHg; - the leggings, according to the second embodiment, also include one or more of the following optional and preferred features:
[0018] 10 mmHg > PB > 3 mmHg, and 30 mmHg > PBi > 20 mmHg, and 30 mmHg > Pc > 20 mmHg, and 25 mmHg > PD > 15 mmHg, and 25 mmHg > PE > 15 mmHg, and 20 mmHg > PF > 10 mmHg, and 15 mmHg > PG > 10 mmHg, and 10 mmHg > PH > 2 mmHg, and 10 mmHg > P! > 2 mmHg, and preferably 30 mmHg > PD- > 20 mmHg, and 25 mmHg > PE- > 15 mmHg, and 20 mmHg > PF > 10 mmHg, and 20 mmHg > PG' > 10 mmHg.
[0019] The invention also relates to a method for treating OSAHS in which a product according to the invention is worn, preferably exclusively during the day, for more than 5 hours, preferably more than 8 hours, preferably more than 12 hours, or even more than 13 hours, and preferably continuously, i.e. without interruption. Brief description of the drawings
[0020] Other characteristics and advantages of the invention will become apparent upon reading the detailed description which follows, and upon examining the attached drawing in which:
[0021] [Fig-1] [Fig.l] schematically represents the morphological reference used to define the altitudes at which textile pressures are measured;
[0022] [Fig.2] [Fig.2] schematically illustrates a pressure profile according to a first example of a legging-type product according to the invention;
[0023] [Fig.3] [Fig.3] schematically represents a pressure profile according to a second example of a legging-type product according to the invention;
[0024] [Fig.4] [Fig.4] schematically illustrates a pressure profile according to a first example of a sock forming part of a sock-short type product according to the invention;
[0025] [Fig.5] [Fig.5] schematically represents a pressure profile according to a second example of a sock forming part of a sock-short type product according to the invention;
[0026] [Fig.6] [Fig.6] schematically illustrates a pressure profile according to a first example of a pair of shorts forming part of a sock-short type product according to the invention; and
[0027] [Fig.7] [Fig.7] schematically represents a pressure profile according to a second example of a pair of shorts forming part of a sock-short type product according to the invention. Definitions
[0028] - “Altitude” corresponds to a level along the vertical direction z when the compression product is worn by a wearer standing upright, as shown in [Fig.l].
[0029] As illustrated in [Fig.l], the altitudes of the lower limb are defined by the standard morphological reference, recalled in the French standard NF_S_97_114. They have been represented, using the standardized notations: - B: ankle, at the point of its minimum circumference; - B1: junction point between the Achilles tendon and the calf muscles; - C: calf, at the point of its maximum circumference; - D: just below the tibial tuberosity; - E: in the center of the kneecap and above the back of the knee (i.e. at the level of the popliteal fossa); - F: mid-thigh; - G: at the top of the thigh; - H: widest lateral trochanteric projections of the buttocks; and - I: hips, at the level of the anterior superior iliac spines;
[0030] Furthermore, for the purposes of the invention, new altitudes have been defined: - D': located at 92% of altitude D; - E': located at 110% of altitude E; - F': located at 126% of altitude E; And - G': located at 92% of altitude G. - The “pressure profile” is defined by the evolution, along a product of compression, from the textile pressure exerted by the product slipped onto a morphological template. - “Compression” is the effect produced by an elastic product worn on a person’s lower limb, both at rest and during exercise, due to the restoring forces of the elastic fibers of this product. - "Textile pressure" is the pressure defined by the French standard NF G 30-102 of October 1986, part B, called "containment pressure" and measured on a "containment stocking" in this standard. The procedure is described in section 8.1 of this part B of the standard. Reference is made there to the application circumference Ci, i.e. the average of the application limit dimensions indicated by the manufacturer. The deformation coefficient A is defined by: [Math.l] 100
[0031] A is a percentage of application elongation in which Co is the circumference from the bottom flat.
[0032] In the context of the present invention, the values of A at different altitudes are given in the following tables. The first table concerns the kit and the second table concerns the leggings.
[0033] [Tables 1] B B1 C D' D E' F' F G' GHIA 29 71 92 59 54 66 63 63 69 73 78 82
[0034] [Tables2] B B1 C D' DE E' F' F G' GHIA 29 71 92 59 54 60 66 63 63 69 73 78 82
[0035] The standard uses a "Hohenstein type" leg model made up of truncated cones, which constitutes a standard in the field of support stockings. When a product does not extend to a certain altitude, it is considered to exert zero textile pressure at that altitude. For example, a product according to the invention does not necessarily extend to altitude I.
[0036] mmHg is commonly used as a unit of measurement for textile pressure in the field of medical compression. It can be easily converted to hPa:
[0037] 2 mmHg: substantially 2.66 hPa;
[0038] 4 mmHg: substantially 5.33 hPa;
[0039] 5 mmHg: substantially 6.66 hPa;
[0040] 8 mmHg: substantially 10.66 hPa;
[0041] 10 mmHg: substantially 13.3 hPa;
[0042] 12 mmHg : 16 hPa ;
[0043] 15 mmHg: 20hPa;
[0044] 20 mmHg: substantially 26.66 hPa;
[0045] 23 mmHg: substantially 30.66 hPa;
[0046] 25 mmHg: substantially 33.33 hPa;
[0047] 28 mmHg: substantially 37.33 hPa;
[0048] 30 mmHg: or 40 hPa.
[0049] Unless otherwise indicated, a “pressure” is a textile pressure. Detailed description
[0050] The textile pressure profile of the compression product is decisive for its effectiveness in treating OSAHS. However, studying the pressure profile alone is insufficient and wearer tests are essential to verify that the compression product is comfortable. Otherwise, compliance will be low and effectiveness reduced.
[0051] Numerous pressure profiles were thus tested and led to the selection of the products according to the invention.
[0052] The preferred pressure profile characteristics of these products are listed below: the pressure profile has a local pressure maximum, preferably an absolute pressure maximum, between altitudes B1 and D', preferably at altitude C; the pressure profile has a local pressure maximum between altitudes F' and G', preferably at altitude F; the pressure profile shows a pressure minimum (absolute minimum) between altitudes D and E', preferably at altitude E; the pressure profile has a local pressure minimum between altitudes D and E', preferably at altitude E and / or altitude E'; the pressure profile shows a local pressure minimum between altitudes HetI; the pressure profile shows a local pressure minimum between altitudes B and B1, preferably at altitude B; the pressure profile increases from altitude B to altitude B1; the pressure profile increases from altitude E' to altitude F'; the pressure profile decreases from altitude D' to altitude D; the pressure profile decreases from altitude G' to altitude G; the pressure profile shows a plateau from altitude B1 to altitude D'; the pressure profile shows a plateau from altitude F' to altitude G'; the pressure profile shows a plateau from altitude H to altitude I; the pressure profile shows two pressure peaks, at the calf and at the thigh; PB < 15 mmHg, preferably PB < 12 mmHg, preferably PB < 10 mmHg, preferably PB < 8 mmHg, and / or PB > 2 mmHg, preferably PB > 4 mmHg; PB1 < 30 mmHg, preferably PBi < 28 mmHg and / or PBi > 15 mmHg, preferably PBi > 20 mmHg; Pc < 30 mmHg, preferably Pc < 28 mmHg and / or Pc > 15 mmHg, preferably Pc > 20 mmHg; PD- < 30 mmHg, preferably Piy < 28 mmHg and / or PD > 15 mmHg, preferably Piy > 20 mmHg; PD < 15 mmHg, preferably PD < 12 mmHg, and / or preferably PD > 5 mmHg, preferably PD > 8 mmHg; PE > 1 mmHg and / or PE < 25 mmHg, preferably PE < 20 mmHg, preferably PE < 15 mmHg, preferably PE < 10 mmHg, preferably PE < 5 mmHg; - preferably, PE = 0; - in particular for the kit of a product according to the invention comprising a sock and a pair of shorts, preferably PE- > 1 mmHg, preferably P, > 5 mmHg and / or PE- < 25 mmHg, preferably PE < 20 mmHg, preferably PE- < 15 mmHg; - PE- < 30 mmHg, preferably PF < 25 mmHg, preferably P, < 20 mmHg, and / or P, > 10 mmHg, preferably P, > 13 mmHg, or even P, > 15 mmHg; - PE < 30 mmHg, preferably PE < 25 mmHg, preferably PE < 20 mmHg, and / or PE > 10 mmHg, preferably PE > 13 mmHg, or even PE > 15 mmHg; - PG' < 30 mmHg, preferably PG- < 25 mmHg, preferably PG- < 20 mmHg, and / or PG- > 10 mmHg, preferably PG- > 13 mmHg, or even PG- > 15 mmHg; - PG < 25 mmHg, preferably PG < 20 mmHg, preferably PG < 15 mmHg, and / or PG > 5 mmHg, preferably PG > 8 mmHg, preferably PG > 10 mmHg; - PH < 10 mmHg, preferably PH < 8 mmHg, and / or PH > 2 mmHg, preferably PH > 4 mmHg; - Pi < 10 mmHg, preferably P! < 8 mmHg, and / or P! > 2 mmHg, preferably Pi > 4 mmHg; - Pc > PE, preferably Pc > (PE + 5 mmHg), more preferably Pc > (PE + 8 mmHg); - PE < Pc, preferably PE < Pc - 5 mmHg, preferably PE < Pc - 10 mmHg, or even PE < Pc - 15 mmHg, or even PE < Pc - 20 mmHg, or even PE < Pc - 25 mmHg, provided that PE > 0 mmHg; - IPd-PeI < 5 mmHg, preferably IPd-PeI < 2 mmHg; - IPc-PbiI < 5 mmHg, preferably IPc-PBiI < 2 mmHg; - PE < PE, preferably PE < PE - 5 mmHg, preferably PE < PE - 10 mmHg, or even PE < PE - 15 mmHg, or even PE < PE - 20 mmHg, or even PE < PE - 25 mmHg, provided that PE > 0 mmHg; - PB < 15 mmHg and (15 mmHg < Pc < 30 mmHg) and PE < 15 mmHg and (10 mmHg < PE < 25 mmHg) and PH < 10 mmHg; - PB < 10 mmHg and (20 mmHg < Pc < 30 mmHg) and PE < 10 mmHg and (12 mmHg < PE < 23 mmHg) and PH < 7 mmHg; - PB < 7 mmHg and (23 mmHg < Pc < 27 mmHg) and PE < 5 mmHg and (12 mmHg < PE < 23 mmHg) and PH < 7 mmHg.
[0053] Generally, the pressure profile of these products is irregular, with low pressure at the ankle, knee and pelvis, and moderate pressure at the calf and thigh.
[0054] In one embodiment, the product is open-toe, i.e. it does not cover not the wearer's feet.
[0055] Preferably, the product has closed feet.
[0056] Low pressure at the ankle makes it easier to put on the product, without compromising the effectiveness of the product. Preferably, 2 mmHg < PB < 15 mmHg.
[0057] A low PH pressure in the pelvis, preferably between 2 mmHg and 8 mmHg, improves the comfort of wearing the product, without harming its effectiveness.
[0058] In one embodiment, the product is a pair of leggings.
[0059] In one embodiment, which is not preferred, particularly when the product is a legging, PE- > PE. In particular for a legging, PE- and / or PE and / or PD may be greater than 10 mmHg, greater than 15 mmHg and, preferably, less than 25 mmHg.
[0060] For leggings, PE can preferably be greater than 5 mmHg, or even greater than 8 mmHg.
[0061] However, unexpectedly, the inventors have in particular discovered that low pressure on the knee does not significantly impair effectiveness, while providing remarkable comfort. In particular, wearing tests have shown, surprisingly, that no edema forms at the knee.
[0062] In a preferred embodiment, the product is a kit consisting of a pair of socks and a pair of shorts. The pressure on the knee PE is advantageously zero, which ensures maximum comfort.
[0063] Preferably, the socks extend at least from altitude B to altitude D and / or the shorts extend at least from altitude E', to altitude G, preferably to altitude H, preferably to altitude I.
[0064] The pressure profile for a sock is preferably such that the pressure decreases from altitude D' to altitude D and such that PD > 8 mmHg and PD > 23 mmHg.
[0065] The pressure profile for the shorts is preferably such that the pressure is maximum between altitudes F' and G' and preferably such that PG < P(, .
[0066] According to a preferred embodiment, the compression product comprises: - a sock extending from altitude B to altitude D, said sock having a pressure profile increasing from altitude B to altitude B1 and decreasing from altitude D' to altitude D, the pressure profile of the sock having a maximum between altitudes B1 and D', preferably a plateau between altitudes B1 and D', the pressure PB preferably being such that PB < 10 mmHg, or even PB < 5 mmHg, the pressure Pc preferably being between 20 mmHg and 35 mmHg, the pressure PD preferably being such that PD < 15 mmHg, or even PD < 10 mmHg, preferably (PD + 5 mmHg) < Pc, and - a short extending from altitude E' to altitude I, said short having a pressure profile increasing from altitude E' to altitude F' and decreasing from altitude G' to altitude H, the pressure profile of the shorts having a maximum between altitudes F' and G', preferably a plateau between altitudes F' and G', and a minimum between altitudes H and I, preferably a plateau between altitudes H and I, the pressure PE- preferably being such that PE- < 15 mmHg, or even PE- < 10 mmHg, the pressure PF preferably being between 10 mmHg and 25 mmHg, more preferably between 10 mmHg and 20 mmHg, the pressure PH being such that PH < 10 mmHg, or even PH < 5 mmHg, (Pf + 5 mmHg) < PF, preferably (P, + 10 mmHg) < PF.
[0067] The manufacture of a product according to the invention does not pose any particular difficulty. In particular, the techniques usually used for the manufacture of elastic venous compression orthoses can be used.
[0068] The structure of a product according to the invention preferably comprises a network of stitches made using a knitting yarn, a weft yarn being interlaced between said stitches.
[0069] The sizing and nature of the knitting and weft yarns as well as the mesh structure are chosen so as to exert in the circumferential direction, after the product has been placed on the lower member, an elastic restoring force capable of producing the desired textile pressure.
[0070] The different parts of the product according to the invention are preferably knitted continuously on a circular loom, with a single knitting yarn all along the product and with different weft yarns depending on the areas considered and / or by varying the tightness of the knitted stitch.
[0071] The product can alternatively be made on a straight loom or in “cut and sew” mode.
[0072] In a preferred embodiment, all parts of the product are compressive.
[0073] Preferably, the weft yarn is elastic, preferably is an elastane yarn. double-gimped.
[0074] In the case where the product is leggings, preferably: - the panties are made with two alternating knitting yarns Cl and C2, preferably Cl being in Lycra 44DT DG 1 / 44 / 34 and C2 being in Lycra 44DT DG 1 / 44 / 12, - the panties / thigh transition zone is made from a 1x3 weft and a bare Lycra in alternating 1x3, the bare Lycra advantageously making it possible to obtain a gripping zone and thus ensuring an anti-fall function of the leggings; the knitting is preferably done on a 1x3 covered weft and on the bare Lycra with a mesh needle and three floating needles; the alternating covered weft and bare Lycra advantageously making it possible to modulate the gripping; the more surface area of bare Lycra in contact with the skin, the greater the gripping effect; the alternation as well as the number of mesh / floating needles being possible with many configurations, - the thigh / knee transition zone is made from a 1x3 weave and alternating 1x3 bare Lycra, - the knee is made from a 2-weft comfort zone, the comfort zone being an area where the stitch height is increased to provide great extensibility. In this case, the comfort zone has been extended to the back of the knee. - the knee / calf, calf and calf / ankle transition zones are made from two frames, - the ankle is made from a frame, - the belt is made with a “Boxer” type elastic; but others al alternatives are also possible, the reinforcement of the belt seam being preferably carried out with a Text 1 / 44 / 34 thread, - the leg is made of two alternating weft threads J1 and J2, preferably J1 being in Lycra 570DT DG 1 / 22 / 7 and J2 being in Lycra 570DT Nu, - the leg knit is in Lycra 17DT SG 1 / 85 / 92, and - the heel is made of Lycra 44DT DG 1 / 44 / 34 (800).
[0075] In the case where the product is a shorts-sock kit, preferably: - the panties are made from two alternating knitting threads Cl and C2, preferably Cl being in Lycra 44DT DG 1 / 44 / 34 and C2 being in Lycra 44DT DG 1 / 44 / 12, - the panty / thigh transition zone is made from a 1x1 weft and a 1x3 bare Lycra, the bare Lycra advantageously making it possible to obtain a gripping zone and thus ensure an anti-fall function of the product at the thigh; the knitting is preferably done on a 1x1 covered weft and on 1x3 bare Lycra so as to ensure a maximum gripping effect, with one mesh needle and three floating needles; the more bare Lycra surface there is in contact with the skin, the greater the gripping effect; the alternation as well as the number of mesh / floating needles being possible with numerous configurations, - the thigh / knee transition zone is made from a 1x1 weave and 1x3 bare Lycra, - the BC (rib) / calf transition zones, the calf and the calf / ankle transition zone are made from two frames, - the ankle and the foot are made from a frame, - the ends are made with “Boxer” type elastics; but other alternatives are also possible, the reinforcement of the belt seam being preferably carried out with a Text thread. 1 / 44 / 34, - the leg for the shorts is made of two alternating weft threads J1 and J2, of preference J1 being in Lycra 475DT DG 1 / 22 / 7 and J2 being in Lycra 475DT Nude, - the leg knit for the shorts is in Lycra 17DT SG 1 / 85 / 92, - the sock weave is made of Lycra 570DT DG 1 / 22 / 7, - the leg knit for the sock is in Lycra 17DT SG 1 / 85 / 92, - the heel is made of Lycra 44DT DG 1 / 78 / 23 Tex, and - the reinforcement of the ribbed edge seam is in Tex. 1 / 44 / 34.
[0076] Alternatively, other PA (PolyAmide) and / or PE (PolyEster) yarns may be used for the manufacture of the shorts or the sock.
[0077] Each end of the shorts / thigh kit can be made according to different construction methods to achieve the desired objective of pressure, comfort and support. For example, wide “boxer” type elastics, weft threads of different sections, and / or constructions combining more or less weft threads per row on the outside or inside of the ends can be used. Examples
[0078] The graphs in Figures 2 to 7 represent the textile pressure in mmHg of different compression products according to the invention, as a function of the altitude z. All the pressure profiles illustrated in these figures are notched, but the pressure profile of a product according to the invention can also have another curve shape.
[0079] [Fig.2] illustrates an example of a pressure profile of a pair of leggings having two equal maxima at the calf and thigh, respectively, and more precisely a first plateau between altitudes B1 and D' and a second plateau between altitudes F' and G', at a pressure of 20 mmHg. A pressure minimum is reached at 5 mmHg, in particular at altitude B and at the pelvis with a plateau at 5 mmHg between altitudes H and I. A local pressure minimum in the form of a plateau is reached at the knee, between altitudes D and E'.
[0080] [Fig. 3] shows an example of a pressure profile for leggings. This profile is not preferred. The pressure is 5 mmHg at the ankle at altitude B, increases continuously until reaching a maximum of 25 mmHg between altitudes B1 and D', then decreases continuously to return to 5 mmHg at altitude I, passing through two plateaus, a first plateau at 20 mmHg at the knee between altitudes D and E' and a second plateau at 15 mmHg at the thigh between altitudes F' and G'. At the pelvis, the pressure profile has a minimum in the form of a plateau between altitudes H and I.
[0081] Figures 4 and 5 illustrate examples of sock pressure profiles where a plateau pressure maximum, at 28 mmHg for [Fig.4] and 25 mmHg for [Fig.5], is reached at the calf between altitudes B1 and D', and the pressure at the knee at altitude D is 10 mmHg. The functions of the two graphs increase continuously from B to B1 and decrease continuously from D' to D. The two functions differ in the pressure value at altitude B and in the slopes of the lines connecting B to B1 and D' to D, respectively. In the graph of [Fig.4], the pressure at altitude B is 10 mmHg while it is 5 mmHg in the graph of [Fig.5]. The function of the latter has a greater increasing slope than that of the graph of [Fig.4].
[0082] Figures 6 and 7 show examples of pressure profiles of bib shorts where a minimum pressure in the form of a plateau at 5 mmHg is reached at the pelvis between altitudes H and I, the pressure at the knee at altitude E' being equal to 10 mmHg. The functions of the two graphs increase continuously from E' to F' to reach a maximum in the form of a plateau from F' to G', then decrease continuously from G' to G and from G to H. The two functions differ in the value of the maximum and in the growth and decrease slopes. In the graph of [Fig.6], the maximum is reached at 15 mmHg, while in the graph of [Fig.7], this maximum is at 20 mmHg. Furthermore, the graphs have two decreasing slopes, the first being that of the line connecting G' to G and the second being that of the line connecting G to H. The slope of the line (GG') is steeper in the graph of [Fig.6] than the slope of the line (GG') in the graph of [Fig.7], while the slope of the line (GH) is steeper in the graph of [Fig.7] than the slope of the line (GH) in the graph of [Fig.6].
[0083] To form a kit according to the invention, the profile sock illustrated in [Fig.4] can be combined in particular either with the profile shorts illustrated in [Fig.6], or with those of [Fig.7]. Similarly, the profile sock illustrated in [Fig.5] can be combined in particular either with the profile shorts illustrated in [Fig.6], or with those of [Fig.7].
[0084] Of course, the invention is not limited to the embodiments described and shown, provided for illustrative purposes only.
Claims
Claims
1. Elastic compression product for the lower limbs of a wearer, intended for the treatment of sleep apnea hypopnea syndrome, said product having the form of a kit comprising a pair of socks and a pair of shorts, said product having a pressure profile defining textile pressures PB, PBi, Pc, Pd, Pe, Pf, Pg, Ph, Pi, Pd', Pes Pf' and PG' at altitudes B, Bl, C, D, E, F, G, H, I, and at altitudes D', E', F' and G' located respectively at 92% of altitude D, at 110% of altitude E, at 126% of altitude E and at 92% of altitude G, respectively, the pressures being measured as the compression pressures of compression stockings according to French standard NF G 30-102 part B, the pressure profile being such that 35 mmHg > Pc > 10 mmHg, 30 mmHg > PF > 10 mmHg and Pc > (Pb+ 10 mmHg), the altitudes B, Bl, C, D, E, F, G, H, I being defined as follows: B: ankle, at the point of its minimum circumference;Bl: junction point between the Achilles tendon and the calf muscles C: calf, at the point of its maximum circumference; D: just below the tibial tuberosity; E: center of the patella and above the back of the knee; F: mid-thigh; G: upper thigh; H: widest lateral trochanteric projections of the buttocks; and I: hips, at the level of the anterior superior iliac spines.
2. Product according to the preceding claim, the pressure profile having - a local pressure minimum at altitude B, and / or - a local pressure maximum between altitudes Bl and D', and / or - a local pressure maximum between altitudes F' and G', and / or - a local pressure minimum between altitudes D and E', and / or - a local pressure minimum between altitudes H and I.
3. A product according to any preceding claim, wherein Pc > (PF + 8 mmHg).
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10. A product according to any preceding claim, wherein 3 mmHg < PB < 15 mmHg, and PE< 13 mmHg, and PH < 10 mmHg. Product according to any one of the preceding claims, wherein Pc > 20 mmHg, and 30 mmHg > PF > 10 mmHg and Pc > (Pb+ 10 mmHg). A product according to any preceding claim, wherein PB > 2 mmHg, and / or 15 mmHg > PD > 5 mmHg, and / or 13 mmHg > PE > 5 mmHg, and / or 15 mmHg > PF > 5 mmHg, and / or 10 mmHg > Pi > 2 mmHg. A product according to any preceding claim, wherein PBi > 15 mmHg, and / or Pn> 15 mmHg, and / or 25 mmHg > PF > 10 mmHg, and / or 25 mmHg > PG- > 10 mmHg. Product according to the immediately preceding claim, wherein 28 mmHg > PB1 > 20 mmHg, and / or 28 mmHg > PD- > 20 mmHg, and / or 23 mmHg > PF > 13 mmHg, and / or 23 mmHg > PG > 13 mmHg. Product according to any one of the preceding claims, not extending beyond altitude I. A product according to any preceding claim, wherein 15 mmHg > PB > 3 mmHg, and / or 35 mmHg > PBi > 20 mmHg, and / or 35 mmHg > Pc > 20 mmHg, and / or 15 mmHg > PD > 5 mmHg, and / or 23 mmHg > PE > 15 mmHg, and / or 20 mmHg > PG > 10 mmHg, and / or 10 mmHg > PH > 2 mmHg, and / or 10 mmHg > Pj > 2 mmHg.
11. Product according to claim 10, wherein 35 mmHg > PD- > 25 mmHg, and / or 15 mmHg > PE- > 5 mmHg, and / or 23 mmHg > PF > 15 mmHg, and / or 23 mmHg > PG > 15 mmHg.
12. A product according to any preceding claim, wherein .....33 mmHg > Pc > 25 mmHg.
13. A product according to any preceding claim, wherein 30 mmHg > PBi, and / or 30 mmHg > PD-.
14. A product according to any preceding claim, wherein 10 mmHg > PB.