Pad for preventing pressure injury

Abstract

The invention relates to the technical field of medical care instruments, in particular to a pressure injury prevention pad which comprises a first U-shaped frame, a U-shaped supporting frame, a second U-shaped frame with the upper portion connected with limiting teeth and an upper supporting pad connected to the first U-shaped frame, and the opening end of the U-shaped supporting frame is rotationally connected with the middle of the first U-shaped frame; the lower portion of the second U-shaped frame is connected with a lower supporting pad, and the lower end of the first U-shaped frame is rotationally connected with the middle of the second U-shaped frame. At least the upper supporting cushion comprises a bottom cushion, covering cloth, a sliding rod and a plurality of sets of adjustable fulcrum supporting assemblies, a handle is connected to the upper face of the sliding rod, the adjustable fulcrum supporting assemblies are connected between the bottom cushion and the covering cloth, the bottom cushion is connected to the lower face of the first U-shaped frame, and the covering cloth is connected to the upper face of the first U-shaped frame through three edges of the covering cloth. The device is simple and easy to use and low in cost, continuous supporting can be achieved, and a long-term bedridden patient with the upper limb activity ability can sit on the device, actively conduct massage and change the body supporting position.

Description

Technical Field

[0001] The present invention relates to the technical field of medical care equipment, and in particular to an anti-pressure injury pad. Background Art

[0002] Bedsores are caused by long-term pressure on local tissues, resulting in continuous ischemia, hypoxia, and malnutrition, which lead to tissue ulceration and necrosis.

[0003] Currently, a wide range of products and technologies are used to prevent and alleviate pressure ulcers. Among them, the use of pressure-injury cushions (such as pressure-injury cushions) is a common and effective method. Existing pressure-injury cushions are generally electrically powered and inflatable, requiring electricity to function effectively. These cushions are expensive to use and cannot provide active exercise, massage, or changes in body support for long-term bedridden patients with upper limb mobility.

[0004] Chinese patent publication number CN104188772A discloses a self-help massage wheelchair for preventing bedsores. Two sets of soft water pipes are arranged horizontally on the seat cushion of a standard wheelchair. Both sets of water pipes form a continuous "E"-shaped structure, spaced apart. One end of the soft water pipes is sealed, and the other end is connected to a water-filled bladder. The bladder connected to pipe A is placed on a tray under the left armrest, while the bladder connected to pipe B is placed on a tray under the right armrest. Each armrest has a handle on the front and outside that can be pushed, pulled, and rotated forward and backward. A pressure plate in the middle of the handle extends toward the top of the bladder and is bonded to it. The soft water pipes are covered with a breathable fabric. This technology does not require power, allowing wheelchair users to self-massage and prevent bedsores. It is inexpensive and easy to implement, allowing wheelchair users to not only enjoy the massage but also the pleasure of exercising their upper limbs.

[0005] However, the above technology still has at least the following deficiencies: 1. When resting, the handle is no longer tightened, and the water in the soft water pipe returns to the leather bag under the pressure of the user's gravity, and the soft water pipe cannot fully provide comfortable support; 2. In the process of alternately pushing and pulling the handle, the water in the leather bag needs to be forced to fill the soft water pipe to repeatedly lift the user (overcoming the user's gravity), which has high work intensity, is laborious to use or cannot be pulled (generally, long-term bedridden patients have poor physical fitness). If the volume of the leather bag is designed to be much smaller than the volume of the soft water pipe, although the problem of laborious operation can be significantly improved, it will cause the volume of the soft water pipe to change very little during the process of alternately pushing and pulling the handle, which seriously affects the massage effect; 3. It is only suitable for small-area cushions such as seat cushions (the larger the area, the more fluid needs to be filled in to achieve the ideal cushion support change range, which will make it difficult to press down the handle, or the cushion will be difficult to achieve the ideal change range, and it is not easy to achieve the ideal massage effect). It is not suitable for larger anti-pressure injury cushions.

[0006] Therefore, an anti-pressure injury pad is proposed. Summary of the Invention

[0007] The purpose of the present invention includes providing an anti-pressure injury pad that is simple to use, low in cost, and can provide continuous support, allowing long-term bedridden patients with upper limb mobility to sit up, actively massage, and change body support positions.

[0008] In order to achieve the above object, the present invention has the following technical solutions:

[0009] The present invention provides an anti-pressure injury pad, comprising a first U-shaped frame, a U-shaped support frame, a second U-shaped frame with a limiting tooth connected to the upper portion, and an upper support pad connected to the first U-shaped frame, wherein the limiting tooth is used to limit the lower end of the U-shaped support frame;

[0010] The open end of the U-shaped support is rotatably connected to the middle portion of the first U-shaped frame;

[0011] The lower portion of the second U-shaped frame is connected to a lower support pad, and the lower end of the first U-shaped frame is rotatably connected to the middle portion of the second U-shaped frame;

[0012] At least the upper support pad includes a base pad, a cover cloth, a sliding rod and several groups of adjustable fulcrum support components, a handle is connected to the top of the sliding rod, and several groups of adjustable fulcrum support components are connected between the base pad and the cover cloth. The base pad is connected to the bottom of the first U-shaped frame, and the cover cloth is connected to the top of the first U-shaped frame through its three sides.

[0013] Preferably, two opposite sides of the first U-shaped frame are provided with long grooves with opposite mouths, and the upper sides of the two opposite sides are provided with a plurality of axial holes vertically passing through the long grooves, and the lower part of one side is provided with a long hole connected to the long groove, the sliding rod is slidably connected to the long groove on the side with the long hole, and the handle extends out of the long hole.

[0014] Preferably, the lower support pad has the same structure as the upper support pad.

[0015] Preferably, two opposite sides of the second U-shaped frame are provided with long grooves with opposite openings, a plurality of axial holes vertically penetrating the long grooves are provided on the upper sides of the opposite sides, and a long hole is provided on the middle part of one side.

[0016] Preferably, the adjustable fulcrum support assembly includes two pulleys, a push-turn rope, a pull-turn rope and a plurality of support turntables.

[0017] The two pulleys are connected to the long grooves opposite to each other at the mouth through shafts;

[0018] The bottoms of the plurality of support turntables are fixedly connected to the top of the base pad, and the support turntables are connected between the two pulleys via a push-rotation rope and a pull-rotation rope;

[0019] One end of the push-rotation pull rope and the pull-rotation pull rope is connected and wound around the right pulley, and the other end is connected to the slide rod after winding around the left pulley and then separated.

[0020] Preferably, the supporting turntable includes a base, a multi-sector rolling element and an annular airbag.

[0021] The middle part of the multi-sector rolling member is rotatably connected to the upper middle part of the base, rollers are rotatably connected in the grooves on the side edges of the sector-shaped portion of the multi-sector rolling member, and guide grooves are provided at the ends of the sector-shaped portion for guiding and connecting the push-rotation rope and the pull-rotation rope;

[0022] The bottom of the base is fixedly connected to the top of the bottom pad;

[0023] The lower side of the annular airbag is fixedly connected to the upper side of the base, and the upper side of the annular airbag is squeezed and separated by the fan-shaped parts of the multi-sector rolling piece to form an annular airbag convex part and an annular airbag flat part.

[0024] Preferably, the roller is a nylon rod.

[0025] Preferably, a bearing is connected between the middle portion of the multi-sector rolling element and the middle portion of the base.

[0026] Preferably, the lower edge of the cover cloth is connected to the lower side of the base pad.

[0027] Preferably, the cover cloth is made of breathable nylon cloth.

[0028] Preferably, the base pad is a plastic sheet.

[0029] Preferably, the plastic sheet is made of polyethylene plastic or polyvinyl chloride plastic.

[0030] Preferably, a headrest is connected to the upper portion of the first U-shaped frame.

[0031] Preferably, the annular airbag is made of rubber.

[0032] Preferably, the annular airbag is covered with cloth.

[0033] Preferably, the annular airbag is filled with air or water.

[0034] Preferably, the sliding rod is made of a rectangular nylon tube.

[0035] Due to the adoption of the above technical solution, the advantages of the present invention are:

[0036] 1. The present invention can provide long-term bedridden patients with upper limb mobility with a convenient and active adjustment of body support points. It can enable long-term bedridden patients to massage themselves and change their body support positions in an energy-saving manner to prevent bedsores. It is also beneficial to promote physical exercise for long-term bedridden patients and prevent or alleviate muscle atrophy at a low cost.

[0037] 2. The present invention enables long-term bedridden people to self-massage and change their body support position by simply pushing and pulling the handle. Self-massage and prevention of bedsores are simple to operate. Moreover, when the handle is in any position, the annular airbag convex part and the annular airbag flat part are both present, and only the position is changed. The annular airbag convex part can always provide stable, sufficient and comfortable support for the user.

[0038] 3. The present invention can realize that the upper support pad supports the long-term bedridden person to sit up on the bed by clamping the U-shaped support rod at different positions on the limiting teeth.

[0039] 4. The support turntable provided by the present invention changes the compressed position of the compressed annular airbag through the forward and reverse rotation of the multi-sector rolling parts under the alternating pulling of the push-turn rope and the pull-turn rope, thereby changing the position distribution of the convex part and the flat part of the annular airbag. This adjustment process is to roll the annular airbag with a roller, forcing the fluid flow in the annular airbag to be transferred to achieve the position distribution change of the convex part and the flat part of the annular airbag. There is no need to repeatedly re-inflate to continuously lift the body, so the adjustment process is labor-saving and easy, and is more suitable for bedsore pads with larger areas.

[0040] 5. The present invention does not require electricity, does not contain motors and other equipment, and provides several supporting turntables with the same structure, which can reduce the types of processing components and has low manufacturing and use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 A schematic diagram of the three-dimensional structure of the pressure injury prevention pad provided by an embodiment of the present invention in a flat state;

[0043] Figure 2 for Figure 1 Schematic diagram of the support state;

[0044] Figure 3 For the general Figure 1 A schematic diagram of the three-dimensional structure after the upper support pad and the lower support pad are removed;

[0045] Figure 4 For the general Figure 2 Schematic diagram of the three-dimensional structure after the cover cloth is removed;

[0046] Figure 5 A schematic top view illustrating the connection relationship between the adjustable fulcrum support assembly, the slide rod, and the first U-shaped frame, as well as the state change of the support turntable during the movement of the slide rod, provided in an embodiment of the present invention;

[0047] Figure 6 A schematic top view illustrating the connection relationship between the adjustable fulcrum support assembly, the slide rod, and the first U-shaped frame, as well as the state change of the support turntable during the movement of the slide rod, provided in an embodiment of the present invention;

[0048] Figure 7 A schematic top view of a supporting turntable in one state provided by an embodiment of the present invention;

[0049] Figure 8 for Figure 7 AA cross-sectional view;

[0050] Figure 9 for Figure 6 A magnified schematic diagram of .

[0051] In the figure: 1. shaft; 2. headrest; 3. handle; 4. slide bar; 5. long hole; 6. cover cloth; 7. bottom pad; 8. pulley; 9. long slot; 10. first U-shaped frame; 20. second U-shaped frame; 21. limit tooth; 30. U-shaped support frame; 40. upper support pad; 50. lower support pad; 60. adjustable fulcrum support assembly; 61. support turntable; 611. annular airbag convex part; 612. annular airbag flat part; 613. base; 6131. rolling part joint; 614. multi-sector rolling part; 6141. sector part; 61411. groove; 61412. guide groove; 615. roller; 616. ball; 617. bearing; 62. push-turn rope; 63. pull-turn rope. DETAILED DESCRIPTION

[0052] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", "left", "right", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0054] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0055] The present invention provides a pressure-injury-proof pad, see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , including a first U-shaped frame 10, a second U-shaped frame 20 with a limited position tooth 21 connected to the upper portion, a U-shaped support frame 30, and a headrest 2 and an upper support pad 40 connected to the first U-shaped frame 10, the open end of the U-shaped support frame 30 is rotatably connected to the middle portion of the first U-shaped frame 10,

[0056] The lower portion of the second U-shaped frame 20 is connected to a lower support pad 50 , and the lower end of the first U-shaped frame 10 is rotatably connected to the middle portion of the second U-shaped frame 20 ;

[0057] The upper support pad 40 includes a base pad 7, a cover cloth 6, a slide rod 4 and several groups of adjustable fulcrum support components 60, the slide rod 4 is connected to the top of the handle 3, and several groups of adjustable fulcrum support components 60 are connected between the base pad 7 and the cover cloth 6. The base pad 7 is connected to the bottom of the first U-shaped frame 10, and the bottom edge of the cover cloth 6 is connected to the bottom of the base pad 7 by Velcro, and the other three sides of the cover cloth 6 are connected to the top of the first U-shaped frame 10 by Velcro;

[0058] The lower support pad 50 has the same structure as the upper support pad 40 .

[0059] The specific implementation method is now described as follows:

[0060] The first U-shaped frame 10 has two opposite sides with long slots 9 with opposite mouths, and the upper surfaces of the two opposite sides are provided with a plurality of axial holes vertically penetrating the long slots 9. The lower portion of one side is provided with a long hole 5 connected to the long slot 9. The slide rod 4 is slidably connected to the long slot 9 on the side with the long hole 5, and the handle 3 extends out of the long hole 5. Figure 3 .

[0061] The second U-shaped frame 20 has two opposite sides with long slots 9 with opposite mouths, and the upper surfaces of the two opposite sides are provided with a plurality of axial holes vertically penetrating the long slots 9, and a long hole 5 is provided on the middle portion of one side. Figure 3 .

[0062] The adjustable fulcrum support assembly 60 includes two pulleys 8, a push-turn pull rope 62, a pull-turn pull rope 63 and a plurality of support turntables 61. The two pulleys 8 are respectively connected to the long grooves 9 opposite to each other at the mouth through the shaft 1; the lower sides of the plurality of support turntables 61 are fixedly connected to the upper side of the base pad 7, and the support turntable 61 is connected between the two pulleys 8 through the push-turn pull rope 62 and the pull-turn pull rope 63; one end of the push-turn pull rope 62 and the pull-turn pull rope 63 are connected and wound around the pulley 8 on the right, and the other end is connected to the slide rod 4 away from the pulley 8 after passing the pulley 8 on the left, see Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 9 .

[0063] The supporting turntable 61 includes a base 613, a multi-sector rolling member 614 and an annular airbag. The middle part of the multi-sector rolling member 614 is rotatably connected to the upper middle part of the base 613 through a bearing 617. A roller 615 is rotatably connected in the side groove 61411 of the fan-shaped portion 6141 of the multi-sector rolling member 614. The end of the fan-shaped portion 6141 is provided with a guide groove 61412 for guiding and connecting the push-turn pull rope 62 and the pull-turn pull rope 63; the bottom of the base 613 is fixedly connected to the top of the bottom pad 7; the bottom of the annular airbag is fixedly connected to the top of the base 613, and the top of the annular airbag is squeezed and separated by the fan-shaped portion 6141 of the multi-sector rolling member 614 to form an annular airbag convex portion 611 and an annular airbag flat portion 612, see Figure 4 、 Figure 7 、 Figure 8 .

[0064] In this embodiment, the cover cloth 6 is made of breathable nylon cloth; the base pad 7 is made of polyvinyl chloride plastic sheet; the annular airbag is made of rubber covered with cloth; and the roller 615 is a nylon rod.

[0065] When the present invention is used lying down, the patient lies on his back on the upper support pad 40 and the lower support pad 50, and then pushes and pulls the handle 3. Figure 1 .

[0066] When the present invention is used for sitting, the patient supports his hands on both sides of the body, and then another person holds the upper end of the first U-shaped frame 10 and pulls the first U-shaped frame 10 and the patient up to a suitable angle, and then the lower end of the U-shaped support frame 30 is clamped into the limiting tooth 21, and the patient can sit in the supporting position. When massage or changing the support position is needed, just push and pull the handle 3, see Figure 2 .

[0067] The present invention realizes the principle of massaging and changing the supporting position:

[0068] When you push down handle 3 (see Figure 5), the slide bar 4 moves downward and pulls the push-turn rope 62, which, under the guidance of the pulley 8, further pulls the multi-sector rolling elements 614 on the multiple support turntables 61 to rotate counterclockwise relative to the annular airbag (since the push-turn rope 62 and the pull-turn rope 63 are multiple strands connected end to end in the groove 61411 of the same sector 6141, see Figure 5 、 Figure 9 As the multi-sector rolling element 614 rotates counterclockwise relative to the annular airbag, the right end of the pull-rotating rope 63 is wound 39° in the groove 61411 on the opposite side of the groove 61411 connected to the push-rotating rope 62, causing the fan-shaped portion 641 to rotate 39° counterclockwise. At the same time, the fan-shaped portion 641 forces the annular airbag protrusion 611 to move 39° counterclockwise, thereby achieving a massage effect during the movement of the annular airbag protrusion 611 and achieving the effect of changing the body support position. Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 .

[0069] When the handle 3 is pulled up (see Figure 6 ), the slide bar 4 moves upward and pulls the pull rope 63, which, under the guidance of the pulley 8, further pulls the multi-sector rolling elements 614 on the multiple support turntables 61 to rotate clockwise relative to the annular airbag (since the push-turn rope 62 and the pull rope 63 are multiple ropes connected end to end in the groove 61411 of the same sector 6141, see Figure 6 、 Figure 9 As the multi-sector rolling element 614 rotates clockwise relative to the annular airbag, the right end of the push-rotating pull rope 62 is wound 39° in the groove 61411 on the opposite side of the groove 61411 connected to the pull-rotating pull rope 63, causing the sector 641 to rotate 39° clockwise. At the same time, the sector 641 forces the annular airbag protrusion 611 to move 39° clockwise, thereby achieving a massage effect during the movement of the annular airbag protrusion 611 and achieving the effect of changing the body support position. Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 .

[0070] That is, through the up and down movement of the slide bar 4, the support turntable 61 is alternately pulled by the push-turn rope 62 and the pull-turn rope 63, and the multi-sector rolling element 614 is rotated forward and reversely to change the compressed position of the annular airbag, forcing the fluid flow in the annular airbag to shift, thereby achieving the position distribution change of the annular airbag convex part 611 and the annular airbag flat part 612, in this process achieving the effect of massaging and changing the support position, see Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 .

[0071] The above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications based on the above description are possible. It is not possible to enumerate all embodiments here. Any obvious variations or modifications arising from the technical solutions of the present invention remain within the scope of protection of the present invention.

Claims

1. A pressure injury prevention pad, comprising a first U-shaped frame (10), a second U-shaped frame (20) having a limit tooth (21) connected to the upper portion thereof, a U-shaped support frame (30), and an upper support pad (40) connected to the first U-shaped frame (10), wherein the open end of the U-shaped support frame (30) rotates with the middle portion of the first U-shaped frame (10), and is characterized in that: The lower portion of the second U-shaped frame (20) is connected to a lower support pad (50), and the lower end of the first U-shaped frame (10) is rotatably connected to the middle portion of the second U-shaped frame (20); At least the upper support pad (40) includes a base pad (7), a cover cloth (6), a slide rod (4) and several groups of adjustable fulcrum support assemblies (60), the slide rod (4) is connected to a handle (3) on the top, and several groups of adjustable fulcrum support assemblies (60) are connected between the base pad (7) and the cover cloth (6), the base pad (7) is connected to the bottom of the first U-shaped frame (10), and the cover cloth (6) is connected to the top of the first U-shaped frame (10) through its three sides.

2. The pressure-protection pad according to claim 1, wherein: The first U-shaped frame (10) is provided with long grooves (9) with opposite mouths on two opposite sides, and a plurality of axial holes vertically penetrating the long grooves (9) are provided on the upper surface of the two opposite sides. A long hole (5) communicating with the long grooves (9) is provided on the lower surface of one side, and the sliding rod (4) is slidably connected in the long groove (9) on the side provided with the long hole (5), and the handle (3) extends out of the long hole (5).

3. The pressure-protection pad according to claim 1, wherein: The lower support pad (50) has the same structure as the upper support pad (40).

4. The pressure-protection pad according to claim 1, wherein: The two opposite sides of the second U-shaped frame (20) are provided with long grooves (9) with opposite openings, the upper surfaces of the two opposite sides are provided with a plurality of axial holes vertically penetrating the long grooves (9), and the middle upper surface of one side is provided with a long hole (5).

5. The pressure-protection pad according to claim 2, wherein: The adjustable fulcrum support assembly (60) includes two pulleys (8), a push-rotation pull rope (62), a pull-rotation pull rope (63) and a plurality of support turntables (61). The two pulleys (8) are respectively connected to the long grooves (9) opposite to each other at the mouth through the shaft (1); The lower sides of the plurality of support turntables (61) are fixedly connected to the upper side of the base pad (7), and the support turntables (61) are connected between the two pulleys (8) via a push-rotation pull rope (62) and a pull-rotation pull rope (63); One end of the push-rotation rope (62) and the pull-rotation rope (63) are connected and wound around the right pulley (8), and the other end is connected to the slide rod (4) after being wound around the left pulley (8).

6. The pressure-protection pad according to claim 5, wherein: The supporting turntable (61) includes a base (613), a multi-sector rolling element (614) and an annular airbag. The middle portion of the multi-sector rolling element (614) is rotatably connected to the upper middle portion of the base (613); a roller (615) is rotatably connected in a side groove (61411) of the sector portion (6141) of the multi-sector rolling element (614); and a guide groove (61412) is provided at the end of the sector portion (6141) for guiding and connecting the push-rotating rope (62) and the pull-rotating rope (63); The bottom of the base (613) is fixedly connected to the top of the bottom pad (7); The lower side of the annular airbag is fixedly connected to the upper side of the base (613), and the upper side of the annular airbag is squeezed and separated by the fan-shaped portion (6141) of the multi-sector rolling element (614) to form an annular airbag convex portion (611) and an annular airbag flat portion (612).

7. The pressure-protection pad according to claim 1, wherein: The lower side of the cover cloth (6) is connected to the lower side of the base pad (7).

8. The pressure-injury-preventing pad according to claim 1 or 7, wherein: The bottom pad (7) is a plastic sheet.

9. The pressure-protection pad according to claim 1, wherein: The upper portion of the first U-shaped frame (10) is connected to a headrest (2).

10. The pressure-protection pad according to claim 6, wherein: The annular airbag is made of rubber.

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