CN117414256A

CN117414256A - Pressure belt for lower limb and method for manufacturing the same

Info

Publication number: CN117414256A
Application number: CN202210797352.9A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Resgood Medical Co ltd
Current assignee: Resgood Medical Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2024-01-19

Abstract

The present disclosure relates to a pressure belt for a lower limb and a method of manufacturing the same, the pressure belt comprising: a main body and a strip-shaped protrusion, the main body defining a width direction and a length direction perpendicular to each other and including a first surface contacting a user and a second surface opposite to the first surface, and a strap extending from at least one side of the main body in the width direction; the strip-shaped protrusion is attached to the first surface, and the strip-shaped protrusion has a first length extending in the length direction, a first width in the width direction, and a first height perpendicular to the first surface; the strap is wrapped around a lower limb of a user and attached to the second surface to secure the pressure band to the user, and the strip-shaped protrusion is positioned to correspond to at least a portion of a venous trend of at least one vein of the lower limb to eccentrically pressurize the at least one vein of the user through the first surface of the pressure band and the strip-shaped protrusion.

Description

Pressure belt for lower limb and method for manufacturing the same

Technical Field

The present invention relates to a pressure belt for lower limbs and a method of manufacturing the same.

Background

Common means of lower extremity varicose vein disease prevention and post-operative treatment are known to include the wearing of compression devices or the application of bandages and the like. By means of the compression device or the bandage, certain pressure is applied on the lower limb to eliminate swelling and ache caused by varicose veins on affected parts, prevent varicose veins and deep vein thrombosis, or promote recovery and healing after varicose vein treatment operation.

The compression device typically applies a uniform pressure. However, in certain situations, such as where additional pressure is required to be applied to a selected area (also known as eccentric compression), existing compression devices are not satisfactory.

Other ways of applying pressure are known, such as bandages, which have the advantage of a high degree of flexibility, and the user can wrap the bandage around the desired area to apply pressure as required. However, this approach still does not allow for the application of additional pressure to localized areas while applying some pressure to the user as a whole. Furthermore, wrapping bandages is time consuming and pressure application relies on the experience of the user, failing to ensure a reliable level of compression.

Accordingly, there is a need for a pressure belt for a lower limb that reliably and continuously achieves eccentric compression and a method of manufacturing the same.

Disclosure of Invention

In view of the above-mentioned problems and needs, the present invention provides a novel pressure belt for lower limbs and a method for manufacturing the same, which solve the above-mentioned problems and bring about other technical effects due to the following technical features.

In one aspect, the present invention provides a pressure belt for a lower limb, comprising: a main body defining a width direction and a length direction perpendicular to each other, and including a first surface in contact with a user and a second surface opposite to the first surface, and a strap extending in the width direction from at least one side of the main body; and a strip-shaped protrusion attached to the first surface, and having a first length extending in the length direction, a first width in the width direction, and a first height perpendicular to the first surface; wherein the strap is wrapped around a lower limb of a user and attached to the second surface to secure the pressure band to the user, and wherein the location of the strip-shaped protrusion corresponds to at least a portion of a venous trend of at least one vein of the lower limb to eccentrically pressurize the at least one vein of the user through the first surface of the pressure band and the strip-shaped protrusion.

In some examples, the first height and/or the first width of the strip-shaped protrusion is the same along the vein run.

In some examples, the first height and/or the first width of at least a portion of the strip-shaped protrusion is variable along the vein run.

In some examples, the first height and/or the first width of at least a portion of the strip-shaped protrusion gradually decreases from the proximal end to the distal end of the lower limb along the venous trend.

In some examples, the position of the strip-shaped protrusion on the first surface is adjustable.

In some examples, the strip-shaped protrusion is removably attached to the first surface.

In some examples, the shape of the strip-shaped protrusion in a cross-section perpendicular to the first surface is at least one of a semicircle, a triangle, a rectangle, a trapezoid, or a combination thereof.

In some examples, the first width of the strip-shaped protrusion is in a range of 5mm to 200 mm.

In some examples, the first height of the strip-shaped protrusion is in the range of 2mm to 20 mm.

In some examples, the difference between the maximum and minimum of the first heights of the strip-shaped protrusions is in the range of 0 to 18 mm.

In some examples, the pressure band further includes a punctual protrusion attached to the first surface and configured to apply a punctual pressure at a given location, the punctual protrusion having a second height perpendicular to the first surface.

In some examples, a spacer is disposed between the punctiform protrusion and the first surface for adjusting the second height.

In some examples, the pressure band further comprises: a second strap having one end attached to the proximal end of the main body; and a punctual protrusion attached to the second strap and configured to apply a punctual pressure at a given location.

In some examples, the strap extends from one side of the body in the width direction, and wherein the strap extends along the entire length of the body.

In some examples, the body further includes a first portion and a second portion distributed along the length direction, wherein the strap extends along the width direction on the first portion and the second portion, respectively.

In some examples, the first portion and the second portion are separate and configured to be secured to different locations of a lower limb, respectively.

In some examples, the body further includes a connection between and connecting the first portion and the second portion, and wherein a dimension of the connection in a width direction is less than a dimension of the first portion and the second portion in the width direction.

In some examples, the connection is provided with a connection strap extending from one side of the main body in the width direction.

In some examples, the first portion, the second portion, and the connection are integrally formed.

In some examples, the first portion and the second portion are each connected to the connection portion by a sewing process.

In some examples, the strip-shaped protrusion extends along the entire length of the first portion and the second portion.

In some examples, the strip-shaped protrusions extend along the entire length of the pressure band.

In some examples, at least a portion of the strip-shaped protrusion is connected to the connection strap.

In some examples, the strip-shaped protrusion is separate from the connection strap.

In some examples, the strap includes a plurality of sub-straps arranged at intervals along the length direction, at least a portion of the sub-straps being provided with an attachment portion at an end thereof remote from the main body for attachment to the second surface.

In some examples, the attachment portion and the second surface are connected by hook and loop fasteners.

In some examples, the strap extends in the width direction from both sides of the main body, and wherein the strap includes a plurality of first sub-straps and a plurality of second sub-straps arranged at intervals along the length direction, the plurality of first sub-straps being disposed on a first side of the main body, the plurality of second sub-straps being disposed on a second side of the main body opposite the first side.

In some examples, in the length direction, a first opening is defined between two adjacent first sub-straps for receiving an opposite side second sub-strap, and a second opening is defined between two adjacent second sub-straps for receiving an opposite side first sub-strap.

In some examples, the strip-shaped projections extend along the venous run of the great saphenous vein and/or the small saphenous vein of the lower limb.

In some examples, the strip of raised material includes at least one of a linear combed pile, brushed cotton, woven fabric, pillow or core material, fabric filler, gel, silicone, rubber, or air bladder.

In another aspect the present invention also provides a method of manufacturing a pressure band for a lower limb, the method comprising: providing a main body defining a width direction and a length direction and including a first surface for contact with a user and a second surface opposite the first surface, and a strap extending in the width direction from at least one side of the main body; attaching a strip-shaped protrusion to a first surface of the body, the strip-shaped protrusion having a first length extending along the length direction and a first height perpendicular to the first surface; wherein the strip-shaped protrusion is positioned to correspond to at least a portion of a vein run of at least one vein of a lower limb to eccentrically pressurize the at least one vein of the user through the first surface of the pressure band and the strip-shaped protrusion when the pressure band is secured to the user.

In some examples, the method further comprises edge banding the edge of the body.

In some examples, attaching the strip-shaped protrusion to the first surface of the body includes: the strip-shaped protrusions are adhered, welded or sewn to the first surface of the main body.

In some examples, attaching the strip-shaped protrusion to the first surface of the body includes: the strip-shaped protrusion is detachably attached to the first surface of the main body.

In some examples, the method further comprises attaching a punctual protrusion to the first surface of the body, wherein the punctual protrusion is configured to apply a punctual pressure at a given location, and the punctual protrusion has a second height perpendicular to the first surface.

In some examples, the method further comprises providing a spacer between the punctiform protrusion and the first surface for adjusting the second height.

In some examples, the method further comprises providing a second strap and attaching one end of the second strap to the proximal end of the body; and attaching a punctiform protrusion to the second strap, wherein the punctiform protrusion is configured to apply a punctiform pressure at a given location.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure, not to limit the present disclosure.

FIG. 1 illustrates a front view of a pressure belt showing a first surface in accordance with at least one embodiment of the present disclosure;

FIG. 2 illustrates a rear view of the pressure belt of the embodiment of FIG. 1, showing a second surface;

FIG. 3 illustrates various sections of the pressure belt of the embodiment shown in FIG. 1;

FIG. 4 illustrates a schematic diagram of measuring leg length and leg circumference of a lower limb in accordance with at least one embodiment of the present disclosure;

FIG. 5 illustrates a front view of a pressure belt according to yet another embodiment of the present disclosure;

FIG. 6 shows a rear view of the pressure belt of the embodiment shown in FIG. 5;

FIG. 7 illustrates a front view of a pressure belt according to yet another embodiment of the present disclosure;

FIG. 8 shows a rear view of the pressure belt of the embodiment shown in FIG. 7;

fig. 9 shows a schematic front view of a lower limb, primarily showing the femoral vein and the great saphenous vein;

fig. 10 shows a schematic rear view of a lower limb, which mainly shows the small saphenous vein;

FIG. 11 illustrates a schematic view of a user wearing a pressure band in accordance with at least one embodiment of the present disclosure;

FIG. 12 shows a pressure profile of a pressure belt in the same cross section as the prior art pressure application;

FIG. 13A illustrates a cross-sectional view of a bar-shaped protrusion in a width direction according to at least one embodiment of the present disclosure;

fig. 13B illustrates a cross-sectional view of a bar-shaped protrusion in a width direction according to another embodiment of the present disclosure;

FIG. 14 illustrates a cross-sectional view of a bar-shaped protrusion along a length direction in accordance with at least one embodiment of the present disclosure;

FIG. 15 illustrates a front view of a pressure belt according to an alternative embodiment of the present disclosure;

FIG. 16 illustrates a waistband for use with the pressure band of FIG. 15 in accordance with an alternative embodiment of the present disclosure;

FIG. 17 illustrates a front view of a pressure belt according to another alternative embodiment of the present disclosure;

FIG. 18 illustrates a front view of a pressure belt according to an additional embodiment of the present disclosure;

fig. 19 shows a rear view of the pressure belt shown in fig. 18.

List of reference numerals

1. Main body

2. 2' strip-shaped protrusion

21. First sub-strip-shaped protrusion

22. Second sub strip-shaped protrusion

23' arc-shaped part

24' rectangular portion

3. A first surface

4. A second surface

5. Bandage

51. First sub-bandage

52. Second sub-bandage

53. Connecting part binding band

6. First part

7. Second part

8. Connecting part

9. Attachment part

10. A first opening

11. A second opening

12. Sewing connecting wire

13. Raised hook and loop fastener

14. Second binding band

20. 20' punctiform bulge

30. Waistband

31. Waistband adjusting buckle

32. Clamping groove

40. Connecting buckle

41. Connecting buckle main body

42. Connecting piece

43. Adjusting button

44. Rotating shaft

50. Gasket

60. Glue button

L length direction

W width direction

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present disclosure. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Preferred embodiments of the pressure belt and the method of manufacturing the same according to the present disclosure are specifically described below with reference to the accompanying drawings. Fig. 1 illustrates a front view of a pressure belt showing a first surface in accordance with at least one embodiment of the present disclosure. Fig. 2 shows a rear view of the pressure belt of the embodiment of fig. 1, showing the second surface. Fig. 3 shows sections of the pressure belt of the embodiment shown in fig. 1. Fig. 4 illustrates a schematic diagram of measuring leg length and leg circumference of a lower limb in accordance with at least one embodiment of the present disclosure. Fig. 5 illustrates a front view of a pressure belt according to yet another embodiment of the present disclosure. Fig. 6 shows a rear view of the pressure belt of the embodiment shown in fig. 5. Fig. 7 illustrates a front view of a pressure belt according to yet another embodiment of the present disclosure. Fig. 8 shows a rear view of the pressure belt of the embodiment shown in fig. 7. Fig. 9 shows a schematic front view of the lower limb, which mainly shows the femoral vein and the great saphenous vein. Fig. 10 shows a schematic rear view of the lower limb, which mainly shows the small saphenous vein. FIG. 11 illustrates a schematic view of a user wearing a pressure band in accordance with at least one embodiment of the present disclosure. Fig. 12 shows a pressure distribution diagram of a pressure belt in the same section as that of the prior art pressing mode. Fig. 13A illustrates a cross-sectional view of a bar-shaped protrusion in a width direction according to at least one embodiment of the present disclosure. Fig. 13B illustrates a cross-sectional view of a bar-shaped protrusion in a width direction according to another embodiment of the present disclosure. Fig. 14 illustrates a cross-sectional view of a bar-shaped protrusion along a length direction in accordance with at least one embodiment of the present disclosure. Fig. 15 illustrates a front view of a pressure belt according to an alternative embodiment of the present disclosure. FIG. 16 illustrates a waistband for use with the pressure band of FIG. 15 in accordance with an alternative embodiment of the present disclosure. Fig. 17 illustrates a front view of a pressure belt according to another alternative embodiment of the present disclosure. Fig. 18 illustrates a front view of a pressure belt according to an additional embodiment of the present disclosure. Fig. 19 shows a rear view of the pressure belt shown in fig. 18.

Possible implementations within the scope of the present disclosure may have fewer components, have other components not shown in the drawings, different components, differently arranged components, differently connected components, etc., than the examples shown in the drawings. Furthermore, two or more of the components in the figures may be implemented in a single component or a single component shown in the figures may be implemented as multiple separate components without departing from the concepts of the present disclosure.

Varicose veins are one of the most common vascular diseases of the lower limbs, and a series of lesions of superficial varicose veins, pressure rise and skin microcirculation disturbance caused by blood backflow and backflow obstruction of the lower limbs are caused by venous valve insufficiency, blockage, muscle pump insufficiency and the like of the lower limbs.

At present, more than hundreds of millions of people in China suffer from varicose veins with different degrees. The traditional treatment means of the disease is that surgical operation, tendon drawing type aspiration and stripping operation is adopted, the wound is large, the healing is slow, a long recovery period is required after the operation, and the complications are relatively more, so that inconvenience is brought to work and life. Therefore, minimally invasive treatment of varicose veins of the lower extremities has become a trend, and rf ablation closure has been recommended as the surgical procedure for varicose veins in the european and american guidelines.

The radio frequency treatment is that the great saphenous vein is punctured near the knee joint under the guidance of ultrasonic waves, the radio frequency catheter reaches the junction of the great saphenous vein and the femoral vein for about 2cm, then the radio frequency generator and a special electrode catheter are used for generating heat energy, and the catheter is slowly withdrawn while the radio frequency is used for heating, so that the vascular intima injury, the vein wall thickening, the lumen contraction, rapid organization and formation of fiber ropes are carried out, and finally the vein lumen is closed, thereby the great saphenous vein is occluded. Compared with the traditional operation, the method has the advantages of short operation time, quick postoperative recovery and less scars, and the operation is simple and can be completed under local anesthesia.

After the radiofrequency minimally invasive surgery, the patient needs to wear the gradient pressure socks to pressurize the lower limbs, gradually lower gradient pressure is applied to the lower limbs from the ankle to the thigh, and the great saphenous vein after the surgery is continuously pressurized, so that the postoperative recovery is promoted.

However, the existing compression stockings have the following problems: (1) difficult to wear. The wound is inevitably touched in the wearing process, the wound is easy to tear, pain and the like, and special equipment is needed for auxiliary wearing; (2) pressure relaxation: the pressure socks are cylindrical socks woven by nylon-ammonia yarns through a special weaving process, pressure is generated on lower limbs through radial expansion deformation of materials, the pressure depends on elasticity of the socks and the peripheral size of the lower limbs, and therefore the applied pressure is inaccurate; meanwhile, the material of the sock is subjected to creep deformation due to continuous stress after being worn for a long time, the pressure exerted by the sock on the lower limb is continuously reduced, and the pressure exerted by the sock cannot be regulated; (3) the pressure socks are easy to slip.

Meanwhile, in the clinical postoperative compression treatment process of varicose veins, higher pressure needs to be applied to the great saphenous vein than other positions around the lower limb, and no existing apparatus for compression treatment with lower limb eccentricity exists at present.

In view of the drawbacks of the prior art, the present disclosure proposes a novel pressure belt for a lower limb and a method of manufacturing the same, and exemplary embodiments of the pressure belt for a lower limb and the method of manufacturing the same proposed by the present disclosure will be exemplarily described below with reference to the accompanying drawings. For the sake of brevity, the pressure bands of the exemplary embodiments shown in this disclosure are described by way of example with respect to the right lower limb, and those skilled in the art will appreciate that the same or similar structure is equally applicable to the left lower limb, e.g., the pressure band mirror image of the right lower limb.

As shown in fig. 1 and 2, at least one embodiment of the present disclosure proposes a pressure belt for a lower limb, including a main body 1 and a strip-shaped protrusion 2 attached to the main body 1, the strip-shaped protrusion 2 being configured to eccentrically pressurize at least one vein of a user.

It is noted that the "eccentric compression" or "eccentric compression" described in this disclosure is particularly beneficial for post-operative treatment of varicose veins. Such as vascular sclerotherapy, laser ablation, or radio frequency ablation, additional pressure is applied to the trend of the vein being treated (e.g., the great saphenous vein or the small saphenous vein) to help isolate the vein being treated from the normal vein, so as to allow for fibrosis recovery within days after treatment. In particular, eccentric compression refers to the application of additional pressure in a given area in addition to the application of uniform pressure to the user's limb. In fig. 12, a pressure profile of the pressure belt in the same section of the lower limb is shown with the pressure pattern of the prior art (e.g. pressure socks). The solid line shows the pressure profile of the pressure belt of the present disclosure, which is particularly advantageous for post-venous recovery, because the eccentric compression concept of the pressure belt of the present disclosure is able to give more pressure to the vein being treated than the prior art uniform compression.

As shown in fig. 1, the main body 1 defines a width direction W and a length direction L perpendicular to each other. The body 1 comprises a first surface 3, a second surface 4 and a strap 5. The body 1 as a whole is flexible and the first surface 3 is intended to be in contact with a user and may comprise a skin-friendly material, such as an elastic fabric (knitted warp or weft knitted elastic fabric) or a PU (polyurethane) sponge. The second surface 4 is opposite to the first surface 3, and the second surface 4 may comprise a raised cloth cover for attachment of the strap 5.

The strap 5 extends from at least one side of the main body 1 in the width direction W. Illustratively, the strap 5 comprises a plurality of sub-straps arranged at intervals in the length direction, at least a portion of which at the end remote from the main body may be provided with an attachment portion 9 for attachment to the second surface 4. In the present embodiment, the attachment portions 9 are provided on the first surfaces 3 of the plurality of sub-bands. For example, the attachment portion 9 may have(i.e., hook and loop fastener) ends, respectively, the second surface 4 comprises the corresponding +.>(i.e., hook and loop fasteners) surfaces, such as raised surfaces. The attachment 9 and the second surface 4 are connected by hook and loop fasteners. At least a portion of the sub-band of the band 5 is wrapped over the user's lower limb and attached to the second surface 4 when worn, thereby securing the pressure band to the user's lower limb. The strap 5 may have elasticity so as to be able to stretch and apply pressure to the lower limb of the user when wrapped around and secured to the lower limb. Alternatively, the width of the strap 5 in the length direction L may be in the range of 30 to 60mm, for example 30 to 40mm, 40 to 50mm, 50 to 60mm or 30mm, 35mm, 40mm, 45mm, 50mm or 60mm.

The strip-shaped protrusions 2 are attached to the first surface 3, for example in a fixed, detachable or adjustable manner to the first surface 3. It should be noted that the term "stripe-shaped protrusion" in this disclosure is intended to be distinguished from a dot-shaped or block-shaped protrusion, which has a length and a width, and the length is much larger than the width, for example, the length is more than 5 times the width. The idea behind the provision of strip-shaped projections is that the veins and the vein run of the lower limb of the person are also usually strip-shaped, the strip-shaped projections being intended to follow the run of the veins of the lower limb in order to apply additional pressure to a particular vein of the lower limb.

In particular, the position of the strip-shaped protrusion 2 corresponds to at least a portion of the venous trend of at least one vein of the lower limb, so as to eccentrically pressurize the at least one vein of the user by the first surface 3 of the pressure belt and the strip-shaped protrusion 2.

While compression stockings and/or compression devices for the treatment of tissue edema are known, for example, also comprising a raised configuration, the raised configuration of these compression devices is configured as dot-like protrusions arranged in a regular or irregular distribution in a plane, the function of which is to apply pressure to the site of tissue edema to promote drainage of tissue fluid from the interstices between the dot-like protrusions. However, there is no corresponding bump configuration for the treatment and rehabilitation of varicose vein diseases, and no strip-like bumps designed for the lower limb vein trend. Thus, such punctiform raised structures of known compression devices differ from the strip-like raised structures proposed by the present disclosure, corresponding to the vein trend of the lower limb, both in terms of structure, function and effect.

Furthermore, products of similar structure are also known from the market. However, according to clinical experience, eccentric compression of the treated vein by means of strip-shaped projections conforming to the vein trend can facilitate the post-varicose vein recovery, which exhibits its advantages (compared to compression devices such as pressure socks) on a number of indicators evaluating post-varicose vein recovery, including but not limited to: venous closure rate, varicose recurrence rate, probability of deep venous thrombosis (formation), patient comfort and satisfaction, and the like.

For describing the strip-shaped protrusion of the present disclosure, the strip-shaped protrusion 2 is defined to have a first length d extending in the length direction L, a first height h perpendicular to the first surface 3, and a first width k in the width direction W.

The first length d may be set to be less than or equal to the length of the body 1. For example, the first length d may be equal to the length of the body 1, i.e. the strip-shaped protrusion 2 extends along the entire length of the pressure belt, such as the embodiment shown in fig. 5 to 8. Alternatively, the first length d may be smaller than the length of the body 1, such as the embodiment shown in fig. 1 and 2.

Alternatively, the first height h of the strip-shaped protrusion 2 may be in the range of 2mm to 10mm. For example, 2mm to 4mm, 4mm to 6mm, 6mm to 8mm, 8mm to 10mm or 2mm, 4mm, 5mm, 6mm, 8mm or 10mm. The magnitude of the first height h should be selected according to the magnitude of the eccentric pressing required. It will be readily appreciated that the greater the first height h, the greater the eccentric compression pressure at the same strap attachment location (i.e., the same pressure applied uniformly). It should be noted that a suitable amount of eccentric compression should be employed. For example, if the pressure of the eccentric compression is too great, not only discomfort is caused to the user, but also the deep veins of the lower limb are even pressed, resulting in obstruction of venous return of the lower limb. Conversely, if the pressure of the eccentric pressing is too small, it is obvious that the eccentric pressing effect to be achieved by the present invention cannot be achieved.

Alternatively, the first width k of the strip-shaped protrusion 2 may be in the range of 5mm to 60mm, for example, 5mm to 20mm, 20mm to 30mm, 30mm to 40mm, 40mm to 60mm or 5mm, 8mm, 15mm, 20mm, 30mm, 40mm or 60mm. The first width k of the strip-shaped protrusion 2 may be selected according to the width of the vein to be eccentrically pressurized, and different widths may be selected according to different veins, which is not limited in this disclosure.

Alternatively, the shape of the strip-shaped protrusion 2 in a cross section perpendicular to the first surface 3 may be at least one of a semicircle, a triangle, a rectangle, a trapezoid, or a combination thereof. For example, in the embodiment shown in fig. 13A, the sectional shape of the strip-like projection 2 is a trapezoid. Preferably, the cross-sectional shape of the strip-like projections 2 is set to be larger near the first surface 3 than far from the first surface 3 in order to secure a reliable connection and rigidity with the first surface 3.

Alternatively, the material of the strip-shaped protrusions 2 may for example comprise at least one of a linear combed pile, a brushed cotton or polymeric material, a woven fabric, a pillow or core material, a fabric filler, a gel, a silicone, a rubber or an air bag, or a combination of the above.

Referring again to fig. 1 and 2, the body 1 may further include first and second portions 6 and 7 distributed along the length direction L, and a connection portion 8 between and connecting the first and second portions 6 and 7. Specifically, the dimension of the connecting portion 8 in the width direction W is smaller than the dimensions of the first portion 1 and the second portion 2 in the width direction W. The first portion 6 may correspond to a lower limb thigh portion, the second portion 7 may correspond to a lower limb shank portion, and the connection 8 corresponds to a lower limb knee joint portion. Compared with the pressure sock which entirely surrounds the lower limb, the connecting part 8 is arranged to stagger the knee joint part, so that the flexibility of the lower limb when a user wears the pressure belt can be improved, and the joint part is prevented from interfering when moving.

Alternatively, the first portion 6 and the second portion 7 may also be separate portions, separate from each other. That is, the first and second parts 6 and 7 may not be connected together by the connection part 8, but the first and second parts 6 and 7 may be fixed to different positions of the lower limb, respectively. For example, the first portion 6 may be fixed to the thigh portion and the second portion 7 may be fixed to the calf portion.

Illustratively, the strap 5 may extend in the width direction W on the first and second portions 6, 7, respectively. In other words, in the embodiment shown in fig. 1 and 2, the connection 8 does not comprise a strap 5. Specifically, the strap 5 extends in the width direction W from both sides of the main body 1, and the strap 5 includes a plurality of first sub-straps 51 and a plurality of second sub-straps 52 that are arranged at intervals in the length direction L.

A plurality of first sub-bands 51 are provided on a first side of the main body 1, for example, the left side in fig. 1. A plurality of second sub-bands 52 are provided on a second side of the main body 2 opposite the first side, such as the right side in fig. 2. In the length direction L, a first opening 10 is defined between two adjacent first sub-bands 51 for receiving a second sub-band 52 on the opposite side. Accordingly. A second opening 11 is defined between two adjacent second sub-bands 52 for receiving the opposite side first sub-band 51. In other words, in the length direction L, the first sub-bands 51 and the second sub-bands 52 are alternately arranged. With the above arrangement, the plurality of first sub-bands 51 and the plurality of second sub-bands 52 form an arrangement resembling an array of fingers, the first sub-bands 51 are wrapped around the lower limb and received in the second openings 11 on the opposite sides, and the second sub-bands 52 are wrapped around the lower limb and received in the first openings 10 on the opposite sides, helping to form a reliable connection, and this arrangement can effectively reduce the gaps between the adjacent bands 5 so as to ensure the durability and uniform distribution of the applied pressure. In addition, by means of a plurality of sub-bands, the pressure application may be divided into different parts, facilitating the application of different pressures at different locations of the lower limb, such as gradient pressure, as will be described in more detail below.

In the embodiment shown in fig. 1, the strip-like projection 2 is arranged on the right side of the first surface 3 in order to facilitate eccentric compression of the great saphenous vein of the lower limb. Correspondingly, the strip-shaped projections 2 extend along the venous run of the great saphenous vein of the lower limb. The strip-shaped protrusions 2 may be fixedly attached to the first surface 3 of the body 1, for example glued, welded or sewn to the first surface 3 of the body 1.

In this embodiment, the strip-shaped protrusions 2 extend along the entire length of the first and second portions 6 and 7, and are broken only at the connection portions 8, forming first and second sub-strip-shaped protrusions 21 and 22. This arrangement allows for a major degree of flexibility of the lower limb at the connection 8. Further, as shown in fig. 1 and 2, the first portion 6, the second portion 7 and the connecting portion 8 are formed as one body, and the main body 1 is formed of left and right halves, the first portion 6, the second portion 7 and the connecting portion 8 in each half being formed as one body, the left and right halves being connected together by a sewing process, the sewing connection line 12 being particularly shown in fig. 1.

Further, as shown in fig. 1 and 2, in the planar expanded state of the pressure belt, the pressure belt widths of the first portion 6 to the second portion 7 substantially sequentially decrease in the length direction L, which conforms to the law of variation of the circumference of the lower limb of the human body from thigh to shank.

The skin surface pressure of the pressure band pair on the lower limb according to the Laplace formula is expressed as follows:

wherein,

p (mmHg) represents skin surface pressure in millimeters of mercury (mmHg);

n is a pressure coefficient, and for pressure bands of the same material and size, the pressure coefficient N is the same, and N can be measured through experiments;

f (N) represents the tension of the fabric of the pressure belt, and the unit is N;

c (mm) represents the circumference of the lower limb in mm;

W _b (mm) represents the width of the strap 5 in the longitudinal direction L in mm.

It follows that the skin surface pressure of the pressure band against the lower limb is inversely proportional to the circumference of the lower limb and the width of the strap 5, if the tension is kept constant.

It is known that in the prevention, treatment and postoperative recovery of varicose veins of the lower limb, it is advantageous to apply a gradient pressure to the lower limb which increases in sequence from the ankle to the thigh, helping to promote venous return and alleviating the symptoms of varicose veins. Therefore, in combination with the above formula, the pressure belt width of the first portion 6 to the second portion 7 in the length direction L can be sequentially reduced, and the width of the strap 5 in the length direction L can be sequentially reduced, with the same tension in the pressure belt. While the tension in the pressure belt is generally related to the elongation of the body 1. The pressure belt provided by the present disclosure adopts the above-mentioned size design, so that the user can simply and rapidly realize the gradient pressure on the lower limb under the condition that the user applies approximately the same stretching degree on each sub-bandage, and the pressure of the pressure belt is not required to be indicated by an additional pressure indicating device.

Optionally, the second surface 4 of the pressure band may also be provided with graduation marks (not shown), for example indicating the measured circumference of the lower limb at that portion, on which the first or second sub-band 51, 52 may be wound and fixed. Whereas the position of the graduation marks is substantially related to the recommended pressure of the lower limb at that portion. Alternatively, the scale markings may represent only a scale from 1 to n to indicate the pressure level of the lower limb at that portion, and the user may look up the actual pressure against the pressure level corresponding to the different circumference in cooperation with the "circumference-pressure level gauge" attached to the pressure band.

Figures 3 and 4 illustrate a method of measuring leg length and leg circumference of a lower limb. Before wearing the pressure belt, the user needs to first measure the leg length and the leg circumference, particularly the leg circumference, of his lower limb. The measurement is preferably performed on the upright patient's leg, as prescribed by the chinese pharmaceutical industry standard YY/T0853-2011. Figure 4 shows the main measurement points for measuring the circumference of the lower limb and the leg length. It can be seen that there are a total of 7 measurement points from the ankle to the inguinal position, corresponding to the ankle circumference minimum point B, gastrocnemius dead point B1, calf maximum circumference point C, tibial inferior endpoint D, center E of patella and popliteal fossa, thigh center position F, and point G about 5cm below the inguinal center point K, respectively. The inguinal center point K can be obtained by sequentially measuring the level K1 of pubic symphysis and the level K2 of gluteus inferior folds and taking an intermediate value. Correspondingly, as shown in fig. 3, the positions of the individual sections corresponding to the 7 measuring points are also identified on the pressure belt. In the embodiment shown in fig. 3, six first sub-straps 51 are provided on one side of the pressure band and six second sub-straps 52 are provided on the other side, and wherein the six second sub-straps 52 correspond to 6 of the measurement points including ankle circumference minimum point B, calf muscle dead center B1, calf maximum circumference point C, center E of patella and popliteal fossa, thigh center position F, and point G about 5cm below inguinal center point K, and one first sub-strap 52 corresponds to the remaining 1 measurement point, namely tibial articular lower endpoint D. The embodiment shown in fig. 3 is merely exemplary, and one skilled in the art may select the number of sub-bands or the correspondence with the measurement points according to the need.

After the measurement of the leg length and leg circumference of the lower limb is completed, the user can wear the pressure belt according to the measured leg circumference, for example, the pressure belt is worn according to the scale marks. Alternatively, due to the size and structural design of the pressure belt of the previously described embodiments of the present disclosure, the user may also simply wear directly without measuring the leg circumference.

Fig. 5 and 6 show schematic diagrams of a pressure belt according to yet another embodiment of the present disclosure. For brevity, the following description is only directed to the differences between the embodiments and the foregoing embodiments, and the structures not involved are the same as or similar to the foregoing embodiments, and are not repeated herein.

In this embodiment, the strip-shaped protrusions 2 extend along the entire length of the first and second portions 6, 7, which has the advantage that the strip-shaped protrusions 2 can be replaced or adjusted in their entirety and that the machining and assembly is easier. In order to apply pressure also through the strip-shaped protrusions 2 at the positions of the connection parts 8, the connection parts 8 may be provided with connection part straps 53 extending in the width direction W from one side of the body 1, and the connection part straps 53 may be integrally formed with the connection parts 8 or connected to the connection parts 8 through a sewing process, so that fixation and pressure may be applied through the connection part straps 53 also at the knee joint part when worn. The strip-shaped protrusion 2 and the connecting portion strap 53 can be connected or separated. For example, a portion of the strip-shaped protrusion 2 located at the connection portion 8 is connected with the connection portion strap 53, or the strip-shaped protrusion 2 and the connection portion strap 53 may be separated without having a connection relationship, which may be adjusted or modified according to wearing comfort of the patient.

Fig. 7 and 8 show schematic diagrams of a pressure belt according to yet another embodiment of the present disclosure. In this embodiment, the first portion 6 and the strap 5 and the connection 8 within it are formed as one piece, i.e. without stitching or connecting lines. While the portions of the second portion 7 near the lower end are split from the middle and then spliced together, thus helping to follow the contour of the lower leg.

Figures 9 and 10 schematically show the front and back of the lower limb. Fig. 9 mainly shows the femoral vein and the great saphenous vein, and fig. 10 mainly shows the small saphenous vein. As can be seen from fig. 9 and 10, the great saphenous vein is distributed primarily along the medial side of the lower limb, while the small saphenous vein is distributed primarily along the lateral side of the lower limb. In clinical treatment of varicose veins, radiofrequency treatment is performed for patients with high varicose veins, for example, for the great saphenous vein or the small saphenous vein. The strip-shaped projections 2 may be arranged according to the vein run aimed at, for example, in the previous embodiment the strip-shaped projections 2 are arranged on the right side of the first surface 3 of the body 1, which corresponds to the great saphenous vein run of the right lower limb. Figure 11 shows a schematic view of the lower limb wear of a user according to the pressure band. The strip-shaped bulge 2 applies eccentric pressure to the great saphenous vein trend exactly. Alternatively, the first height h of the strip-shaped projections 2 is the same along the vein run.

As can be seen from fig. 11, the pressure belt proposed by the present disclosure fixes the pressure belt to the lower limb of the user by the strap 5, can be well fitted to the lower limb of the user and applies pressure to the lower limb, and in particular, eccentric pressurization can be also achieved by the strip-shaped protrusions 2. In the embodiment shown in fig. 11, the first and second portions 6 and 7 respectively press against the thigh and the calf, and the connection 8 may be offset from the knee joint area, improving the flexibility of the lower limb when the user wears the pressure belt.

Similarly, for the small saphenous vein, the strip-shaped protrusion 2 may be provided on the left side of the first surface 3 of the main body 1 such that the strip-shaped protrusion 2 is on the outside of the right lower limb and corresponds to the trend of the small saphenous vein when the pressure band is worn by the right lower limb. The strip-shaped bulge 2 can be arranged for other vein trends of the lower limb, and the great saphenous vein and the small saphenous vein are not limited in the present disclosure.

Furthermore, in the post-venous return of the great saphenous vein, it is advantageous to apply a gradient of varying pressure to the great saphenous vein. As shown in fig. 9, there is a junction between the femoral vein and the great saphenous vein (as shown by the dashed box in fig. 9), and thus there is an inflow of femoral venous blood into the great saphenous vein, thereby adversely affecting fibrosis of the great saphenous vein.

Thus, the strip-like projections 2 can exert a greater pressure closer to the junction of the femoral vein and the great saphenous vein. In an alternative embodiment, the first height h of at least a portion of the strip-shaped protrusion 2 is variable along the vein run. Specifically, as shown in fig. 14, the first height h of at least a portion of the strip-shaped protrusion 2 gradually decreases from the proximal end to the distal end of the lower limb along the vein trend of the great saphenous vein, thereby exerting pressure on the vein trend that gradually decreases from the proximal end to the distal end. It should be noted that, the proximal end referred to in the present disclosure is a proximal end with respect to the heart of the human body, and the distal end is a distal end with respect to the heart of the human body, for example, for a lower limb, a thigh root or groin may be regarded as a proximal end, and an ankle may be regarded as a distal end; for the thigh, the thigh root or groin can be considered the proximal end, while the knee joint can be considered the distal end.

In other words, the first height h of the strip-shaped protrusion 2 is variable, in particular in the first portion 6 of the body 1, and is higher closer to the junction of the femoral vein and the great saphenous vein, so that a greater pressure is exerted closer to the junction of the femoral vein and the great saphenous vein. On the contrary, at the junction far away from the vein and the great saphenous vein, because the reflux blood flow in the great saphenous vein is almost not present, the pressure with the same size is not required to be applied as the junction of the femoral vein and the great saphenous vein, and the anti-gradient pressure can better promote the comfort of a user on the premise of ensuring the rehabilitation effect. It should be noted that the inverse gradient pressure is mainly because the ankle to thigh is applied with a gradually decreasing gradient pressure, that is, a gradually decreasing gradient pressure from the distal end to the proximal end with respect to the wearing of the strap 5, and the variable strip-shaped protrusion 2 is applied with a gradually increasing gradient pressure from the distal end to the proximal end, and the pressure change trend is opposite to the former.

Referring again to fig. 14, in the first portion 6 of the main body 1, the closer the first height h of the strip-shaped protrusion 2 is to the junction of the femoral vein and the great saphenous vein (right direction in fig. 14), the higher the first height h of the strip-shaped protrusion 2 is. Whereas in the second portion 7 of the body 1 the first height h of the strip-shaped projections 2 is the same. Alternatively, in an embodiment in which the strip-shaped protrusion 2 extends along the entire length of the pressure belt, the first height H of the strip-shaped protrusion 2 may follow a variation law similar to that of fig. 14, i.e. the first height H is variable in the first portion 6 and the first height H is the same in the second portion 7.

Alternatively, the maximum value h of the first height h of the strip-shaped protrusion 2 _max And a minimum value h _min The difference between them is in the range of 0 to 8mm, for example 0 to 2mm, 2 to 4mm, 4 to 6mm, 6 to 8mm or 2mm, 4mm, 5mm, 6mm or 8mm.

Further, the example shown in fig. 13A and 14 exemplarily describes one of the embodiments in which the strip-shaped protrusion 2 is attached to the first surface 3. In the embodiment of fig. 13A and 14, the strip-shaped protrusion 2 is detachably attached to the first surface 3, and the position of the strip-shaped protrusion 2 at the first surface 3 is adjustable. The surface of the strip-shaped protrusions 2 adjacent to the first surface 3 may be provided with protruding hook and loop fasteners 13 for attachment to the first surface 3, e.g I.e., hook and loop fasteners, end portions. Correspondingly, on the first surface 3 is used for attaching stripsPart of the bulge 2 comprising the corresponding +.>(i.e., hook and loop fasteners) surfaces, such as raised surfaces. Thus, the strip-shaped protrusion 2 may be detachably attached to the first surface 3 in a manner similar to the attachment of the strap 5 to the second surface 4, and its position is adjustable.

The adjustable and/or removable strip-shaped projections 2 have advantages in practical applications. For example, for the great saphenous vein, the vein trend of the great saphenous vein of different people is different, and at the same time, since the leg circumferences of different people are also different, even the great saphenous vein with the same trend, the positions of the strip-shaped protrusions 2 for the people with different leg circumferences also need to be adjusted adaptively. Therefore, the adjustable strip-shaped protrusion 2 has the advantage that professionals such as doctors or nurses can correspondingly adjust the position of the strip-shaped protrusion 2 according to the great saphenous vein directions of different patients so as to best adapt to the great saphenous vein directions. For the removable strip-like projections 2, the great saphenous vein of the user can be determined in advance and attached to the first surface 3, and the pressure band can be applied to the user's lower limb. Alternatively, the strip-shaped protrusions 2 may be pressed directly against the great saphenous vein of the user before wearing the pressure belt, attached to the first surface 3 by means of a mounting structure such as a protrusion hook-and-loop fastener 13, so that the strip-shaped protrusions 2 may be automatically attached to the first surface 3.

Alternatively, in some applications (e.g. applications for the small saphenous vein), the strip-shaped protrusion 2 may also be fixedly connected to the first surface 3, since the vein trend of the small saphenous vein of different patients is substantially the same, there is no large difference, and for such fixedly-trend veins, an embodiment may also be employed in which the strip-shaped protrusion 2 is fixedly connected to the first surface 3.

The detachable strip-shaped projections 2 are also advantageous. Compression devices such as pressure bands or pressure socks are typically worn for a period of time after the varicose vein is healed and recovered (e.g., one week, half month, or even one month). The first week of the post-operative healing and recovery process is particularly important, so the use of the eccentric pressurized pressure bands presented by embodiments of the present disclosure can effectively assist the patient in recovery during the first week. However, the eccentric pressing for a long time is not friendly to the patient, so that the user can detach the strip-shaped protrusion 2 by himself or with the aid of a professional in the middle and late stages of the recovery phase. Alternatively, depending on the recovery situation of the user, the user may reattach the strip-shaped protrusion 2 to the pressure belt again when the eccentric pressing needs to be performed again in some special cases.

In another alternative embodiment, as shown in fig. 13B, the cross section of the strip-shaped protrusion 2' may include a combination of an arc-shaped portion 23' and a rectangular portion 24', the arc-shaped portion 23' being disposed above the rectangular portion 24' and configured to eccentrically press the user. The rectangular portion 24 'has a width greater than that of the arc-shaped portion 23' so that a non-eccentric pressing portion of the skin of the user's lower limb can be brought into contact with the rectangular portion 24'. To improve the wearing comfort of the user, the joint edges between the arcuate portions 23 'and the rectangular portions 24' may be provided as smooth transitions, avoiding scratching the skin or leaving noticeable impressions on the skin.

Furthermore, the inventors have noted that in certain clinical application scenarios, it is desirable to apply point pressure to a specific location of the lower limb. For example, the application of the point pressure is particularly advantageous at a location about 2cm below the junction of the femoral vein and the great saphenous vein (hereinafter referred to as the "saphenous pressurization point"). This can significantly block the reflux of femoral venous blood to the great saphenous vein, helping recovery after varicose vein surgery, preventing venous insufficiency and deep venous thrombosis.

In the embodiment shown in fig. 15 and 16, the pressure band may also include second strap 14 and spot-like projections 20. One end of second strap 14 is attached to the proximal end of main body 1 (i.e., the upper end in fig. 15) so as to continue to extend obliquely upward from the upper end of main body 1, for example, in the upward direction of extension of the great saphenous vein. Dot projections 20 are attached to second strap 14 and are configured to apply a dot pressure at a given location. Second strap 14 and spot protrusions 20 may cooperate with an additional waistband to perform its function of applying spot pressure.

Fig. 16 schematically illustrates a waistband 30 for use with a pressure band. The waistband 30 may include a waistband adjusting buckle 31 and a clamping groove 32, and a connecting buckle 40 is further arranged on the waistband 30. The waistband adjusting button 31 can retract and fix the waistband for adjusting the circumference of the waistband. The clamping groove 32 is arranged near the waistband adjusting buckle 31 and has a saw-tooth or undulating surface shape, and can form a clamping connection with the connecting buckle 40. The link 40 includes a link body 41, a link member 42 connected to the link body 41 and rotatable, an adjustment button 43, and a rotation shaft 44. Link 42 may be opposite link body 41 about a rotational axis 44, and link 42 is provided with a through hole configured to allow second strap 14 to pass therethrough. The waistband 30 passes through the inside of the connector body 41 and the adjustment button 43 can control the snap-fit connection between the connector body 41 and the waistband 30. When the adjustment button 43 is pressed, the connector body 41 is separated from the waistband 30, and the connector body 41 can be moved along the waistband 30 on the clamping groove 32. Conversely, when the adjusting button 43 is released, the connector body 41 is in snap connection with the waistband 30, and the connector body 41 is fixed on the waistband 30.

In use, the pressure band is first worn to the user's lower limb, then the waist band 30 is worn to the user's waist, and the second strap 14 is passed through the through hole of the connector 42 and wrapped around and attached to its own attachable surface. Adjustment button 43 is then pressed to adjust the position of connector link 40 on waistband 30, thereby adjusting the angle of second strap 14 and the amount of pressure applied.

In other alternative embodiments, other embodiments of the punctiform projections are possible. For example, as shown in fig. 17, a dot-like protrusion 20' is attached to the first surface 3 and configured to apply a dot pressure at a given position. The spot-like projections 20' have a second height H2 perpendicular to the first surface 3. In the embodiment shown in fig. 17, the strip-shaped projections 2 do not extend along the entire length of the pressure belt, whereas the spot-shaped projections 20 'are arranged at positions corresponding to 2cm below the junction of the great saphenous vein and the femoral vein, and a spacer 50 is arranged between the spot-shaped projections 20' and the first surface 3 for adjusting the second height H2, thereby adjusting the magnitude of the applied spot pressure.

Alternatively, the dot-shaped protrusions 20, 20' of the above-described embodiment may be, for example, hemispherical, frustoconical, conical or cubic. Illustratively, when the dot-shaped protrusions 20, 20' are hemispherical (as shown in fig. 15 or 17), the diameter thereof may be in the range of 10 to 25mm and the height thereof may be in the range of 2 to 15 mm.

In addition to the exemplary embodiments set forth in the above description, the pressure belt proposed by the present disclosure may have other alternative embodiments that may be implemented. For example, the strap 5 may alternatively extend in the width direction W from only one side of the main body 1, the opposite side of the main body 1 not including the strap 5. As another example, the first width k of the strip-shaped protrusion 2 may be variable along the vein.

Such alternative embodiments are schematically illustrated in fig. 18 and 19, and the same or similar features as those of the previous embodiments are not described in detail herein. In fig. 18, the strap 5 extends in the width direction W from only one side of the main body 1. To attach the strap 5 to the second surface 4, the pressure band may further comprise a plurality of glue buckles 60 provided on the second surface 4, the plurality of glue buckles 60 being specifically provided in or near the projection area of the strip-shaped protrusion 2 on the second surface 4. The glue button 60 is fixed to the second surface 4, for example by means of stitching. The glue button 60 has a structure similar to a belt button so that the strap 5 can pass through the glue button 60 and bend back to attach to the second surface 4. Furthermore, the attachment portion 9 may be provided on the second surface 4 of the strap 5. When worn, the straps 5 pass through the glue buckles 60 and are bent back to attach to the second surface 4, the pressure of the pressure band being adjustable by the length of the straps 5 passing through the respective glue buckle 60.

Furthermore, in the present embodiment, the first width k of the strip-shaped protrusion 2 may be variable along the vein trend, for example, the first width k of the strip-shaped protrusion 2 gradually decreases from the proximal end to the distal end of the lower limb along the vein trend, thereby applying the eccentric pressure in a larger range of the proximal end position and applying the eccentric pressure in a smaller range of the distal end position. This is primarily done to allow for greater blood flow pressure at the proximal location of the vein run and lesser blood flow pressure at the distal location. Therefore, it is important for eccentric pressurization of the proximal end position to provide a larger range of application area to apply more reliable pressure to the proximal end without applying excessive pressure at the distal end position where the blood flow pressure is small, thereby reducing the pressure burden on the user while ensuring the recovery effect and improving wearing comfort.

The present disclosure also proposes a method of manufacturing a pressure band for a lower limb, the method comprising: providing a main body defining a width direction and a length direction and including a first surface in contact with a user and a second surface opposite the first surface, and a strap extending in the width direction from at least one side of the main body; a strip-shaped protrusion is attached to the first surface of the body, the strip-shaped protrusion having a first length extending in a length direction and a first height perpendicular to the first surface.

The strip-shaped protrusions are positioned to correspond to at least a portion of a vein run of at least one vein of the lower limb to eccentrically pressurize the at least one vein of the user via the first surface of the pressure band and the strip-shaped protrusions when the pressure band is secured to the user.

Optionally, attaching the strip-shaped protrusion to the first surface of the body comprises: the strip-shaped protrusions are adhered, welded or sewn to the first surface of the main body.

Optionally, attaching the strip-shaped protrusion to the first surface of the body comprises: the strip-shaped protrusion is detachably attached to the first surface of the main body.

Optionally, a method according to at least one embodiment of the present disclosure may further comprise attaching a dot-shaped protrusion to the first surface of the body, wherein the dot-shaped protrusion is configured to apply a dot pressure at a given location, and the dot-shaped protrusion has a second height perpendicular to the first surface.

Optionally, a method according to at least one embodiment of the present disclosure may further comprise providing a spacer between the spot-like protrusions and the first surface for adjusting the second height.

Optionally, a method according to at least one embodiment of the present disclosure may further include providing a second strap and attaching one end of the second strap to the proximal end of the body; and attaching a punctiform protrusion to the second strap, wherein the punctiform protrusion is configured to apply a punctiform pressure at a given location.

The following clauses provide examples of the pressure belt for lower limbs and methods of making the same disclosed herein.

Clause 1: a pressure belt for a lower limb, comprising:

a main body defining a width direction and a length direction perpendicular to each other, and including a first surface in contact with a user and a second surface opposite to the first surface, and a strap extending in the width direction from at least one side of the main body; and

a strip-shaped protrusion attached to the first surface, and having a first length extending along the length direction, a first width along the width direction, and a first height perpendicular to the first surface;

wherein the strap is wrapped around a lower limb of a user and attached to the second surface to secure the pressure band to the user, and wherein the location of the strip-shaped protrusion corresponds to at least a portion of a venous trend of at least one vein of the lower limb to eccentrically pressurize the at least one vein of the user through the first surface of the pressure band and the strip-shaped protrusion.

Clause 2: the pressure band of clause 1, wherein the first height and/or the first width of the strip-shaped protrusion is the same along the vein run.

Clause 3: the pressure band of clause 1, wherein the first height and/or the first width of at least a portion of the strip-shaped protrusion is variable along the vein run.

Clause 4: the pressure band of clause 3, wherein the first height and/or the first width of at least a portion of the strip-shaped protrusion gradually decreases from the proximal end to the distal end of the lower limb along the venous trend.

Clause 5: the pressure band of clause 1, wherein the position of the strip-shaped protrusion on the first surface is adjustable.

Clause 6: the pressure band of clause 5, wherein the strip-shaped protrusion is removably attached to the first surface.

Clause 7: the pressure belt of clause 1, wherein the shape of the strip-shaped protrusion in a cross-section perpendicular to the first surface is at least one of a semicircle, a triangle, a rectangle, a trapezoid, or a combination thereof.

Clause 8: the pressure belt of clause 1, wherein the first width of the strip-shaped protrusion is in the range of 5mm to 200 mm.

Clause 9: the pressure band of clause 1, wherein the first height of the strip-shaped protrusion is in the range of 2mm to 20 mm.

Clause 10: the pressure belt of clause 4, wherein the difference between the maximum and minimum of the first heights of the strip-shaped protrusions is in the range of 0 to 18 mm.

Clause 11: the pressure band of clause 1, further comprising: a punctual protrusion attached to the first surface and configured to apply a punctual pressure at a given location, the punctual protrusion having a second height perpendicular to the first surface.

Clause 12: the pressure band of clause 11, wherein a spacer is disposed between the punctiform elevation and the first surface for adjusting the second height.

Clause 13: the pressure band of clause 1, further comprising:

a second strap having one end attached to the proximal end of the main body; and

a punctual protuberance attached to the second strap and configured to apply a punctual pressure at a given location.

Clause 14: the pressure band of clause 1, wherein the strap extends from one side of the body in the width direction, and wherein the strap extends along the entire length of the body.

Clause 15: the pressure band of clause 1, wherein the body further comprises a first portion and a second portion distributed along the length direction, wherein the strap extends across the width direction on the first portion and the second portion, respectively.

Clause 16: the pressure band of clause 15, wherein the first portion and the second portion are separate and configured to be secured to different locations of a lower limb, respectively.

Clause 17: the pressure band of clause 15, wherein the body further comprises a connection between and connecting the first and second portions, and wherein the connection has a dimension in the width direction that is less than the dimension of the first and second portions in the width direction.

Clause 18: the pressure belt of clause 17, wherein the connection is provided with a connection strap extending from one side of the main body in the width direction.

Clause 19: the pressure band of clause 17, wherein the first portion, the second portion, and the connection are integrally formed.

Clause 20: the pressure band of clause 17, wherein the first portion and the second portion are each connected to the connecting portion by a sewing process.

Clause 21: the pressure band of clause 17, wherein the strip-shaped protrusion extends along the entire length of the first portion and the second portion.

Clause 22: the pressure band of clause 1, wherein the strip-shaped protrusions extend along the entire length of the pressure band.

Clause 23: the pressure band of clause 18, wherein at least a portion of the strip-shaped protrusion is connected to the connecting portion strap.

Clause 24: the pressure band of clause 18, wherein the strip-shaped protrusion is separate from the connector strap.

Clause 25: the pressure band of clause 1, wherein the band comprises a plurality of sub-bands spaced apart along the length, at least a portion of the end of the sub-band remote from the body being provided with an attachment portion for attachment to the second surface.

Clause 26: the pressure band of clause 25, wherein the attachment portion is connected to the second surface by a hook and loop fastener.

Clause 27: the pressure band of clause 25, wherein the strap extends in the width direction from both sides of the main body, and wherein the strap includes a plurality of first sub-straps and a plurality of second sub-straps arranged at intervals along the length direction, the plurality of first sub-straps being disposed on a first side of the main body, the plurality of second sub-straps being disposed on a second side of the main body opposite the first side.

Clause 28: the pressure band of clause 27, wherein in the length direction, a first opening is defined between two adjacent first sub-bands for receiving an opposite side second sub-band, and a second opening is defined between two adjacent second sub-bands for receiving an opposite side first sub-band.

Clause 29: the pressure band of any one of clauses 1-28, wherein the strip-shaped protrusions extend along the venous run of the great saphenous vein and/or the small saphenous vein of the lower limb.

Clause 30: the pressure belt of any one of clauses 1 to 28, wherein the strip-like raised material comprises at least one of a linear combed pile, brushed cotton, woven fabric, pillow or core material, fabric filler, gel, silicone, rubber, or air bladder.

Clause 31: a method of manufacturing a pressure band for a lower limb, comprising:

providing a main body defining a width direction and a length direction and including a first surface for contact with a user and a second surface opposite the first surface, and a strap extending in the width direction from at least one side of the main body;

attaching a strip-shaped protrusion to a first surface of the body, the strip-shaped protrusion having a first length extending along the length direction and a first height perpendicular to the first surface;

Wherein the strip-shaped protrusion is positioned to correspond to at least a portion of a vein run of at least one vein of a lower limb to eccentrically pressurize the at least one vein of the user through the first surface of the pressure band and the strip-shaped protrusion when the pressure band is secured to the user.

Clause 32: the method of clause 31, further comprising: and (5) edge banding the edge of the main body.

Clause 33: the method of clause 31, wherein attaching the strip-shaped protrusion to the first surface of the body comprises: the strip-shaped protrusions are adhered, welded or sewn to the first surface of the main body.

Clause 34: the method of clause 31, wherein attaching the strip-shaped protrusion to the first surface of the body comprises: the strip-shaped protrusion is detachably attached to the first surface of the main body.

Clause 35: the method of clause 31, further comprising: a punctual protrusion is attached to the first surface of the body, wherein the punctual protrusion is configured to apply a punctual pressure at a given location, and the punctual protrusion has a second height perpendicular to the first surface.

Clause 36: the method of clause 35, further comprising: and a spacer is arranged between the punctiform salients and the first surface and is used for adjusting the second height.

Clause 37: the method of clause 36, further comprising: providing a second strap and attaching one end of the second strap to the proximal end of the body; and

a punctiform protrusion is attached to the second strap, wherein the punctiform protrusion is configured to apply a punctiform pressure at a given location.

The exemplary embodiments of the pressure belt for lower limbs and the method of manufacturing the same according to the present invention have been described in detail hereinabove with reference to preferred embodiments, however, it will be understood by those skilled in the art that various modifications and adaptations to the specific embodiments described above may be made without departing from the concept of the invention. In addition, various technical features and structures presented in various aspects of the present invention may be combined in various ways without departing from the scope of the invention, which is defined by the appended claims.

Claims

1. A pressure belt for a lower limb, comprising:

2. The pressure band of claim 1, wherein the first height and/or the first width of the strip-shaped protrusion is the same along the vein run.

3. The pressure band of claim 1, wherein the first height and/or the first width of at least a portion of the strip-shaped protrusion is variable along the venous trend.

4. A pressure band as claimed in claim 3, wherein the first height and/or the first width of at least a portion of the strip-shaped protrusion tapers along the venous trend from the proximal end to the distal end of the lower limb.

5. The pressure band of claim 1, wherein the position of the strip-shaped protrusion on the first surface is adjustable.

6. The pressure band of claim 5, wherein the strip-shaped protrusion is removably attached to the first surface.

7. The pressure band of claim 1, wherein the shape of the strip-shaped protrusion in a cross-section perpendicular to the first surface is at least one of a semicircle, a triangle, a rectangle, a trapezoid, or a combination thereof.

8. The pressure belt of claim 1, wherein the first width of the strip-shaped protrusion is in the range of 5mm to 200 mm.

9. The pressure band of claim 1, wherein the first height of the strip-shaped protrusion is in the range of 2mm to 20 mm.

10. The pressure belt of claim 4, wherein a difference between a maximum value and a minimum value of the first height of the strip-shaped protrusion is in a range of 0 to 18 mm.