JP6602122B2 - Elastic stockings - Google Patents

Description

  The present invention relates to an elastic stocking that is preferably used as a medical elastic stocking for the purpose of promoting venous return, such as reducing or preventing venous blood and lymph fluid stasis.

  Elastic stockings for medical use, whose middle class is classified as physical stockings, and whose generic name is elastic stockings, are used for the purpose of promoting venous return such as reducing or preventing venous blood and lymph fluid stasis in the extremities. It is defined that it has a function of applying pressure gradually from the periphery to the center. This elastic stocking is indispensable in the treatment of venous return disorders such as varicose veins and venous thrombosis, and is also used for the treatment of lymphedema. It is also useful for preventing venous thrombosis and varicose veins, and is useful for preventing swelling of the lower limbs for people who work for a long time, especially elderly people and women.

  Various proposals have been made to enhance the function and performance of such elastic stockings. For example, Patent Document 1 discloses a sock-type orthopedic tool that is used to treat lower limb circulatory system diseases, is suitable for supporting all or part of the leg by pressing, and has a function of gradually reducing the compression force from the ankle. And a compressible continuous cylindrical knitted portion covering the leg portion excluding the foot or the buttocks, and an incompressible cylindrical portion that can be covered without being pressed at least at the foot portion. An orthopedic instrument is proposed. The non-compressible cylindrical part of the orthopedic device without compression force constitutes a simple cylindrical element in a free state, but has sufficient elasticity to wrap around the foot, It is said to be sufficient to cover the main part of the foot up to the base of the finger.

  Patent Document 2 discloses an ankle portion for applying an effective compressive force to an ankle and a foot for applying a compressive force in a range of about 0.41% to about 0.83% of the compressive force of the ankle portion to the foot portion. A stocking for treating venous disease of the lower limb has been proposed. This stocking for treating venous diseases can be made of knitted fabric except for the rim and toe, and the rim and toe can be made of conventional jersey. In addition, this stocking for treatment of venous diseases is said to apply the highest pressure to the ankle part to support the peripheral vein (deep part) through the muscle and reduce the back flow of the deep part and the traffic system during the systole. . And if the compression force of an ankle part is made into the reference point of stockings, in order to improve comfort and to avoid the hemostatic effect, the compression force of a foot part is said to be 41 to 85% of an ankle part.

  Patent Document 3 discloses a compression brace for a lower limb, wherein the brace is in the form of a knitted fabric of the type of stockings, socks, or tights, and is a leg portion that extends upward from an ankle, and applies therapeutic pressure to the leg. A leg that is a compressible cylindrical part of a mesh structure and dimensions selected to be added to the leg, and a leg that extends from the ankle area to the toe area, including the instep area, once the brace is fitted into the limb A mesh structure selected to elastically wrap the foot and a foot that is a shaped part of the size, and once the mesh structure and size of the foot is fitted to the limb, 0 <Px <Pm <Pb and Pm <36 mmHg, where Px is the pressure applied by the upper orthosis level, Pm is the pressure applied by the ankle orthosis level, and Pb is applied by the ankle orthosis level Brace characterized in that it is selected as is the pressure on the treatment has been proposed. And this brace is close to the pressure in the upper, for example equal to 5mmHg, i.e. the pressure given by the non-medical knitted fabric, can wrap the foot and hold the brace in place without disturbing the subject It is supposed to be designed to give enough value to do.

  Patent Document 4 discloses a medical elastic stocking for preventing the onset of venous thromboembolism, including a compressible cover formed so as to cover the leg by pressing from the knee to the cover. There has been proposed a medical elastic stocking characterized in that the buttocks and toes are cut and exposed. This medical elastic stocking can solve the problem of falling due to slipping when worn in the conventional medical elastic stocking and does not lose the original prevention effect of venous thromboembolism. The blood flow velocity of the lower limbs of the conventional medical elastic stockings with the buttocks and toes covered and the medical elastic stockings according to the present invention is statistically significant after 20 minutes and after 40 minutes. It is said that there was no difference.

Special Table 2000-512176 Japanese Unexamined Patent Publication No. 08-150172 Special table 2008-539844 JP 2014-188116 A

  The elastic stockings for medical use are formed so that the highest compression force acts on the ankle and a gradual compression force acts on the knee or upper leg, and the degree of the strength of the compression force is It is displayed with the pressure of the ankle. In treating varicose veins and sequelae of venous thrombosis, elastic stockings with a compression force of 30 to 40 mmHg are required, and when it is easy to form skin hardening, pigmentation or ulcer, a compression force of 40 to 50 mmHg An elastic stocking is required. For this reason, as shown in Patent Documents 1 to 4, the purpose of the proposal is how to form the required compression force in the elastic stockings. However, it is not easy for elderly people and patients with joint disorders to wear elastic stockings with a compression force of 30 to 50 mmHg, which is painful. For this reason, there is a demand for an elastic stocking that exhibits the required functions, can be easily worn even a little, and has little pain.

On the other hand, in the elastic stockings, the configuration of the foot part is not particularly mentioned,
There are various types, such as what are considered to be sufficient if they are equivalent to conventional socks or stockings. For example, in the orthopedic instrument described in Patent Document 1, the foot part is an incompressible cylindrical part, and it is sufficient to cover the main part of the foot up to the base of the toe. In the stocking for treatment of venous diseases described in Patent Document 2, the foot part has a good comfort and avoids the hemostatic effect, so 41-85% of the compression force of the ankle part is good. The orthosis described in Patent Document 3 is designed to give the instep to the compressive force given by the non-medical knitted fabric, but there is no description about the toe portion. The medical elastic stocking described in Patent Document 4 has no toe portion, so there is no fear that the wearer slips and falls like a conventional medical stocking, and the lower limb blood flow velocity is not significantly different from that of the toe. It is said.

  In view of such conventional problems, the present invention provides an elastic stocking that can exhibit necessary functions, can be easily worn by elderly people and patients with joint disorders, and can relieve pain. With the goal.

  The present inventors have completed the present invention by paying attention to the fact that a pumping action (muscle pumping function) by so-called calf muscles can be enhanced by providing a toe extension function in the elastic stockings.

  The elastic stockings according to the present invention have a shape in which a compression knitted fabric portion that covers a leg portion with a knitted fabric that exerts a gradual compression force from the ankle portion toward the knee, and a shape that covers the instep portion with a low stretch knitted fabric. An elastic stocking having a holding knitted fabric portion and a stretchable knitted fabric portion that covers the heel, the sole, and the toe portion with a highly stretchable knitted fabric, the stretchable knitted fabric portion covering the toe portion An observation window for inspecting the presence or absence of toe discoloration is provided at the end on the side joined to the shape maintaining knitted fabric.

  In the said invention, the elastic stocking provided with the cover which opens and closes an observation window part is preferable. And this cover shall be that the front-end | tip part or peripheral part engages with a shape maintenance knitted fabric part.

  Moreover, in the said invention, the elastic stocking which consists of a knitted fabric which has a stretch property higher than the elastic knitted fabric part over the width | variety in the part which hits the boundary part of the sole part of an elastic knitted fabric part and a toe part is preferable.

  Further, in the above invention, the stretch knitted fabric portion covering the toes is a bifurcated shape that accommodates the first toe portion and the second toe to the fifth toe portion, or the first toe to the fifth foot. It can be assumed that it is in the form of one bag for housing the bag.

  In the above invention, the stretchable knitted fabric portion may be knitted by hook knitting, and the shape maintaining knitted fabric portion may be knitted by tack knitting.

  Further, the elastic stocking according to the present invention includes a compression knitted fabric portion that covers a leg portion with a knitted fabric that exerts a gradual compressive force from the ankle portion toward the knee, and an instep portion by a low stretch knitted fabric. An elastic stocking comprising a shape-retaining knitted fabric portion that covers and a stretchable knitted fabric portion that covers the heel, sole, and toe portion with a highly stretchable knitted fabric, wherein the foot of the stretchable knitted fabric portion An observation window for checking the presence or absence of toe discoloration may be provided at a portion corresponding to the boundary between the bottom and the toes.

  The elastic stocking according to the present invention exhibits a required function and can be easily worn by an elderly person or a patient with a joint disorder, and can relieve pain.

It is a schematic diagram which shows each site | part of a leg. It is a schematic diagram of the elastic stocking which concerns on this invention. It is a schematic diagram which shows the sole side of FIG. It is a schematic diagram which shows the state which opened the cover of FIG. It is a schematic diagram which shows the sole side of the elastic stocking in which the toes were bifurcated.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. FIG. 1 shows each part of the lower limb, and FIG. 2 shows an elastic stocking according to the present invention. The elastic stocking according to the present invention can be used as an elastic stocking covering from the toes to the lower part of the knee or the upper thigh part, from the ankle part 24 to the lower knee part or the upper thigh part (leg part 22), the instep part. 25, the heel part 26, the sole part 27, and the toe part 28 are covered. That is, as shown in FIG. 2, the elastic stocking 10 includes a compression knitted fabric portion 11 that covers the leg portion 22 with a knitted fabric that exerts a gradual compression force from the ankle portion 24 toward the knee, and a low stretchability. A shape-maintaining knitted fabric portion 12 that covers the instep portion 25 with a knitted fabric, and a stretchable knitted fabric portion 13 that covers the heel portion 26, the sole portion 27, and the toe portion 28 with a highly stretchable knitted fabric. . The elastic stocking 10 is provided with an observation window portion 14 for inspecting the presence or absence of toe discoloration at the end portion of the stretch knitted fabric portion 13 covering the toe portion 28 on the side joined to the shape maintaining knitted fabric portion 12. It has been.

  The compression knitted fabric portion 11 is knitted so that the highest compression force acts on the ankle portion 24 and a gradual compression force acts from the ankle portion 24 toward the knee or upper thigh. Therefore, in general, the specification or performance of the elastic stocking is indicated by the compression force acting on the ankle part, so that when the compression force acting on the ankle part 24 is determined, the leg part 22 is used for the production of ordinary stockings. It is organized in the same way as the method.

  The shape maintaining knitted fabric portion 12 is knitted with a low stretch knitted fabric covering the instep portion 25, and its shape and size are hardly changed. The shape maintaining knitted fabric portion 12 can be knitted by tack knitting. The stretchable knitted fabric portion 13 is knitted by a highly stretchable knitted fabric that covers the heel portion 26, the sole portion 27, and the toe portion 28, and can be knitted by heel knitting. The side part of the foot is preferably covered with a highly stretchable knitted fabric. The degree of expansion / contraction of the low-elasticity knitted fabric can be 30 to 100% in terms of elongation, and the degree of expansion / contraction of the highly elastic knitted fabric can be in the range of 80 to 200% in terms of elongation. The elongation rate of the highly stretchable knitted fabric can be 1.0 to 3.0 times, and preferably 1.5 to 2.5 times that of the low stretch fabric.

  The elastic stocking 10 is covered with a shape-maintaining knitted fabric portion 12 that covers the instep portion 25 and an elastic knitted fabric portion 13 that covers the heel portion 26, the sole portion 27, and the toe portion 28. The shape-maintaining knitted fabric portion 12 has low elasticity and the shape and size hardly change, whereas the elastic knitted fabric portion 13 is highly elastic and has an elongation rate of 1.0 to 3.0 times that of the shape-maintaining knitted fabric portion 12. Have. For this reason, the force which lifts a toe up comes to act. In other words, the elastic stocking 10 has an extension function of bending the foot back, and the extension function can enhance the muscle pump function. Further, the elastic stocking 10 has a shape retaining knitted fabric portion 12 whose shape and size hardly change, so that the shape retaining knitted fabric portion 12 is first put on the instep portion 25 so as to cover the foot. Thereafter, the compression knitted fabric portion 11 is put on the leg portion 22 so as to be pulled up, so that it can be easily attached. For this reason, elderly people and patients with joint disorders can easily wear them.

  The stretch function of the elastic stocking 10 is achieved by covering the boundary portion between the foot sole portion 27 and the toe portion 28, that is, the portion corresponding to the MP joint, with a knitted fabric having a higher elasticity than the elastic knitted fabric portion 13. Can be increased. For example, on the sole side of the stretch knitted fabric portion 13, as shown in FIG. 3, the foot of the stretch knitted fabric portion 13 that covers the sole knitted fabric portion 133 and the toe portion 28 of the stretch knitted fabric portion 13 that covers the sole 27. Between the finger knitted fabric portion 135, a bent knitted fabric portion 137 made of a knitted fabric having a higher elasticity than the elastic knitted fabric portion 13 can be provided. The bent knitted fabric portion 137 covers a portion corresponding to the MP joint.

  As described above, the elastic stocking 10 has an observation window portion for checking the presence or absence of toe discoloration at the end on the side where the stretchable knitted fabric portion 13 covering the toe portion 28 is joined to the shape maintaining knitted fabric portion 12. 14 is provided. The details around the observation window 14 are shown in FIG. As shown in FIG. 4, in this example, a cover 15 that opens and closes the observation window portion 14 is provided. The cover 15 can be knitted by a knitted fabric similar to the stretchable knitted fabric portion 13, and the cover 15 can be opened and closed by a surface fastener 155 knitted into the cover 15. The surface fastener 155 can be provided at the distal end portion or the peripheral portion of the cover 15, and is preferably engaged with the shape-maintaining knitted fabric portion 12. In order to securely attach the cover 15 to the shape-maintaining knitted fabric portion 12 by the surface fastener 155, a joint knitted fabric portion 125 can be provided on the shape-maintaining knitted fabric portion 12. By providing such a cover 15 on the observation window portion 14 and adjusting the engagement position of the joint knitted fabric portion 125 to which the cover 15 is attached, the degree of dorsiflexion of the foot can be adjusted. Ten toe extension functions can be adjusted.

  As described above, the observation window portion 14 is provided for checking the presence or absence of discoloration of the toes. Check whether or not the discoloration of the skin or nails of the toes and the elastic stockings 10 are properly used. You can check whether or not. The observation window part 14 can also be provided on the sole side as shown in FIG. In this example, the portion covering the toe portion 28 of the stretchable knitted fabric portion 13 is not a single bag-like form that accommodates the first to fifth toes as shown in FIG. This is an example of a bifurcated shape that accommodates the second to fifth toe portion, and further an example without the cover 15.

  In FIG. 5, an observation window portion 14 is provided between the sole knitted fabric portion 133 and the toe knitted fabric portion 135 of the stretchable knitted fabric portion 13, and a boundary portion between the sole 27 and the toe portion 28, In other words, the MP joint is open. Therefore, even if the toes are extended or bent, the observation window portion 14 does not move, and the toes do not jump out of the elastic stocking 10. Even if the shape of the toe knitted fabric portion 135 is a single bag, the toes do not jump out of the elastic stocking 10.

  The elastic stocking 10 according to the present invention has been described above. The elastic stocking 10 has a toe extension function, and can effectively reduce or prevent static and static blood and lymph fluid stasis. In addition, the elastic stocking 10 is excellent in heat retention even on a toe that is generally poor in blood circulation and easily cools, and has an effect of promoting blood circulation.

  When wearing the elastic stocking of the form shown in FIG. 5 according to the present invention (Invention Example 1), wearing the elastic stocking of the commercial product (set compression force 18 mmHg) of the form shown in FIG. 2 (Comparative Example 1), barefoot (Comparative Example 2), and the elastic stockings of the form shown in FIG. 2 according to the present invention are not provided with the observation window portion 14, that is, the toes 28 are all stretchable knitted fabric portions 13. A test of measuring the blood flow velocity of the popliteal vein when a covered elastic stocking was worn (reference example) was performed. The blood flow velocity measurement test was conducted by Toshiba Medical Systems Co., Ltd. NEM10 XG ultrasound image of seven subjects of a medical professional and a nursing student woman with an average age of 42.2 years in a supine position lying on a bed without a pillow The blood flow velocity of the popliteal vein of the right foot was measured with a diagnostic device. Popliteal veins were identified by changes in blood flow due to deep breathing and calf compression, and characteristics of the extracted blood flow waveform.

  The results of the blood flow velocity measurement test are shown in Table 1. In Table 1, each measured value is an average value measured three times. The number indicates the number of the subject. The magnification is the ratio of the average value of Invention Example, Comparative Example 1 or Reference Example to the average value of Comparative Example 2 (bare feet). According to Table 1, it can be seen that Invention Example 1 shows a blood flow velocity equal to or higher than that of Comparative Example 1 (commercially available product). However, the invention example 1 can be easily put on like a normal sock, whereas in the case of the comparative example 1, it is not easy to put it on the foot part first, and the leg part 22 is pulled up. It must be covered so as to be pulled up with a considerable force, and the mounting of Comparative Example 1 is quite troublesome.

  Further, according to Table 1, the blood flow velocity of the reference example is about 10% faster than the blood flow velocity of Invention Example 1 or Comparative Example 1. This result is attributed to the presence or absence of the observation window portion 14, and it is understood that it is preferable to keep the feet warm or not cool. When comparing the blood flow velocity between individuals, the effect of the elastic stockings to be worn is observed to be personally characteristic. However, the standard deviation in each elastic stocking is in the range of 0.47 to 0.60, and it is understood that the effect of the elastic stocking determined by the blood flow velocity may be determined by the average value. That is, it can be seen that by wearing the elastic stockings according to the present invention, the blood flow velocity can be increased 1.6 times faster than that of bare feet, and can be increased 1.8 times or more.

10 Elastic stockings
11 Compression knitted fabric
12 Shape retaining knitted fabric
125 Joint knitted fabric
13 Stretch knitted fabric
133 Sole knitted fabric
135 Toe Knitting
137 Bent knitted fabric
14 Observation window
15 Cover
155 face fastener
22 legs
24 Ankle
25 Instep
26 Buttocks
27 Sole
28 toes

Claims (7)

A compression knitted fabric part that covers the legs with a knitted fabric that exerts a gradual compression force from the ankle part toward the knee, a shape retaining knitted fabric part that covers the instep part with a low stretch knitted fabric, and a high stretch An elastic stocking comprising a stretchable knitted fabric part covering the heel part, the sole part and the toe part with a sex knitted fabric,
An elastic stocking provided with an observation window for inspecting the presence or absence of toe discoloration at the end of the shape retaining knitted fabric portion on the side where the stretchable knitted fabric portion covering the toe portion and the shape retaining knitted fabric portion are joined together .
Here, the degree of expansion / contraction of the low-stretch knitted fabric is 30 to 100% in terms of elongation, and the degree of expansion / contraction of the high-stretch knitted fabric is 80 to 200% in terms of elongation.   The elastic stocking according to claim 1, further comprising a cover for opening and closing the observation window.   The elastic stocking according to claim 2, wherein the cover has a distal end portion or a peripheral portion engaged with the shape maintaining knitted fabric portion.   The bent knitted fabric portion made of a knitted fabric having higher stretchability than the stretchable knitted fabric portion over the width of the foot is provided at a portion corresponding to a boundary portion between the sole portion and the toe portion of the stretchable knitted fabric portion. Elastic stockings as described in any one.   The stretch knitted fabric portion covering the toes is a bifurcated one that accommodates the first toe portion and the second toe to the fifth toe portion, or one that accommodates the first toe to the fifth toe. The elastic stocking according to any one of claims 1 to 4, which is in a bag shape.   The elastic stocking according to any one of claims 1 to 5, wherein the stretch knitted fabric portion is knitted by knitting, and the shape maintaining knitted fabric portion is knitted by tack knitting. A compression knitted fabric part that covers the legs with a knitted fabric that exerts a gradual compression force from the ankle part toward the knee, a shape retaining knitted fabric part that covers the instep part with a low stretch knitted fabric, and a high stretch An elastic stocking comprising a stretchable knitted fabric part covering the heel part, the sole part and the toe part with a sex knitted fabric,
The elastic stocking which provided the observation window part which inspects the presence or absence of toe discoloration in the part which hits the boundary part of the said sole part and a toe part of the said elastic knitted fabric part.
Here, the degree of expansion / contraction of the low-stretch knitted fabric is 30 to 100% in terms of elongation, and the degree of expansion / contraction of the high-stretch knitted fabric is 80 to 200% in terms of elongation.

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