CN116115442A - Lower extremity pressure ulcer prevention device - Google Patents

Abstract

The present application discloses a lower limb pressure sore prevention device in the field of nursing equipment, which includes a base; a fixing assembly arranged on the base for fixing the base; a first support and a second support, the first support and the second The supports are all slidably connected to the base, and the first support and the second support are used to support the feet and legs respectively; the driving assembly is arranged inside the base and is used to alternately lift the first support or the second support. In this solution, the first supporting member and the second supporting member are alternately lifted up by the driving component, thereby effectively alleviating the ischemia of the heel and the leg, and preventing pressure sores on the heel and the leg.

Description

Lower extremity pressure ulcer prevention device

technical field

The invention relates to the technical field of nursing equipment, in particular to a lower limb pressure sore prevention device.

Background technique

The Department of Hand, Foot Trauma and Orthopedics and the Department of Rehabilitation are common departments in hospitals. The Department of Hand, Foot Trauma and Orthopedics treats patients with upper or lower limb injuries. After recovery, these patients need to be sent to the rehabilitation department for rehabilitation training (such as strength and walking training) in order to restore their upper limbs. or lower extremity function.

However, these patients are often restricted in their mobility due to the inconvenient movement of their upper or lower limbs. In severe cases, they may lose their ability to take care of themselves in daily life. Due to the long course of the disease, they are prone to problems such as pressure sores, deep vein thrombosis of lower limbs, respiratory tract infections, and constipation. affect patient outcomes and prognosis. Pressure sores, also known as pressure injuries, are due to long-term pressure on local tissues, resulting in persistent ischemia, hypoxia, and malnutrition, resulting in tissue ulceration and necrosis. Skin pressure sores are a common problem in rehabilitation treatment and nursing. Hand and foot trauma Orthopedics requires long-term bed rest or special body position requirements, and pressure sores have become a common complication. The lower limbs (legs, feet) are body parts that are extremely prone to pressure sores.

In order to solve the above problems, with reference to CN216168152U, the foot fixing support for preventing foot drop and heel pressure sore of a bedridden patient, removes the adjusting pressure block earlier during use, and puts the lower limbs of the bedridden patient into the transverse groove of the rectangular bracket, The patient's foot and calf are respectively supported by the foot bracket and the calf bracket. The patient's heel pillow is placed on the flexible water bag at the bottom of the foot bracket, and the patient's sole is attached to the plantar support. Then reposition the adjustment block according to the patient's foot size, so that the arc-shaped fork of the adjustment block presses on the patient's instep to form a clamping fixation on the foot;

Referring to CN 216628998U, an adjustable lower limb raising pad, the utility model adjusts the distance between the first cushion block and the second cushion block, so that it can be applied to patients with different leg lengths, and at the same time, through the protective groove, the patient's The heel fits closely with the second pad to prevent pressure damage to the skin of the heel.

With reference to CN 209450837U, a multi-functional raising pad, the multi-functional raising pad of the utility model ensures that the affected limb and the ice pack are firmly fixed, avoids the occurrence of pressure sores on the heel, realizes postoperative functional exercise, and is easy to operate, one-time Multi-purpose to prevent heel pressure sores.

In the prior art, the support device is used to raise the leg. Although it can prevent pressure sores on the heel, after the leg is raised, the leg is in contact with the support device, and the weight of the lower limbs is concentrated on the gap between the leg and the support device. The contact point causes pressure sores to grow on the contact points of the legs for a long time. Therefore, the existing technology cannot effectively avoid the problem of pressure sores on the contact points of the legs. Therefore, it is necessary to provide a method to prevent the lower limbs ( device for pressure sores on legs, feet).

Contents of the invention

The present invention intends to provide a device for preventing pressure sores of lower limbs, so as to solve the problem of pressure sores at the contact between legs and supporting devices in the prior art, and at the same time ensure that pressure sores do not develop on the feet.

In order to solve the above problems, the present invention provides the following technical solutions: a device for preventing pressure sores on lower extremities, including a base; a fixing assembly, arranged on the base, for fixing the base; Both the first support and the second support are slidably connected to the base, and the first support and the second support are used to support the feet and legs respectively; Two supports.

The working principle and beneficial effects of the present invention: In this solution, the base is fixed on the hospital bed by means of a fixing component. Initially, the first support does not support the foot, and the second support supports the leg, thereby lifting the entire lower limbs and avoiding the heel. Pressure sores: after a period of time, ischemia occurs at the contact point between the leg and the second support. Since both the first support and the second support are slidingly connected to the base, the first support is used to lift the first support to support the foot. After the heel, the second supporting part drops away from the leg, and the pressure on the contact between the leg and the second supporting part disappears to relieve ischemia; The heel is dropped away from the heel, and the pressure on the contact part between the heel and the first supporting member disappears, and the ischemia of the heel is relieved.

Compared with the inability to adjust the support device in the prior art, this solution alternately lifts up the first support member or the second support member through the drive assembly, so that the heel and the leg are alternately in a state of free suspension without being compressed, and the heel and leg The legs will not be oppressed for a long time, and the free hanging state makes the skin blood vessels of the heels and legs flow quickly to replenish blood, and the ischemic parts will recover quickly, thereby effectively alleviating the ischemia of the heels and legs and preventing heel and leg pressure sores.

Further, the fixing assembly includes fixing straps symmetrically fixed on the base, and the fixing straps on both sides are connected by buckles. The base is placed on the hospital bed, and the fixing straps on both sides go around the bottom of the bed and then fixed with buckles to form a movement restriction on the base, which is convenient for the patient to place the heel and leg on the first support or the second support .

Further, the top of the first support and the top of the second support are provided with arc-shaped grooves, the bottom of the first support is fixedly connected with the first connecting rod, and the bottom of the second support is fixedly connected with the second Connecting rod.

Further, the top of the first support and the top of the second support are both provided with arc-shaped grooves. Curved grooves follow the shape of the heel and leg for enhanced comfort and fit.

Further, the inside of the base is a hollow structure, the drive assembly includes a motor fixedly connected to the inside of the base, the movable end of the motor is fixedly socketed with the drive gear; The first drive disc and the second drive disc are both rotatably connected to the base, and the first drive disc and the second drive disc are respectively fixedly sleeved with transmission gears meshing with the drive gear; The top of the driving disc is provided with a first arc-shaped block along the circumferential direction, and the top of the second driving disc is provided with a second arc-shaped block along the circumferential direction; both the first support and the second support are vertically slidably connected to the base, so that The bottom of the first supporting member abuts against the top of the first arc-shaped block, and the bottom of the second supporting member abuts against the top of the second arc-shaped block.

Initially, the top of the first arc-shaped block abuts against the bottom of the first support, the bottom of the second support does not abut against the top of the second arc-shaped block, and the bottom of the second support and the top of the second drive disc When abutting, the first arc-shaped block pushes up the first support, the first support supports the heel, and the second support does not contact the leg.

After a period of time, the heel is oppressed and ischemia occurs. At this time, start the motor to drive the drive gear to rotate counterclockwise, and use the motor to drive the drive gear to rotate. The hour hand rotates, and the first support or the second support is vertically slidably connected with the base, so that the first support or the second support can only move in the vertical direction; the first driving disc drives the first arc The block rotates clockwise, the second drive plate drives the second arc-shaped block to rotate clockwise, the bottom of the first support part falls off the first arc-shaped block, and falls on the first drive plate, so that the first support part falls away from the heel , the second arc-shaped block gradually jacks up the second support, and the second support supports the legs upward.

Similarly, when the leg is supported by the second support for a period of time, the motor drives the drive gear to rotate clockwise, the second support descends and breaks away from the leg, and the first support rises to support the heel.

Further, the gear ratio of the driving gear and the transmission gear is 1:1. Setting the driving gear in this way can quickly drive the transmission gear to rotate, thereby quickly adjusting the first support member or the second support member.

Further, the tops of the first arc-shaped block and the second arc-shaped block are provided with horizontal cut surfaces, and the bottom of the first support member is rotatably connected with a first pulley sliding on the cut surface of the first arc-shaped block, and the second support The part is rotatably connected with a second pulley that slides on the second arc block section. On the one hand, when the first pulley and the second pulley are used to slide, the first support member and the second support member rise steadily and steadily; on the other hand, the horizontal section has a large support area for the first pulley or the second pulley, so that the first support The piece and the second support piece are supported stably.

Further, it also includes massage components, which are respectively arranged in the arc-shaped grooves, for massaging the heels or legs; transmission components, which are respectively arranged on the first support member and the second support member, and are used to drive the corresponding massage components. The components work; the power components are respectively arranged on the cut surfaces for driving the corresponding transmission components to work, and the cut surfaces have a certain length.

When the leg is placed on the second support (or the rear heel is placed on the first support), the rear heel and the arc groove of the first support or the leg and the arc groove of the second support When the first drive disc and the second drive disc rotate, for example, when the first arc-shaped block and the second arc-shaped block rotate, the first support member supports the heel, and the second support member If the leg is not supported, but the heel is in an ischemic state under pressure for a period of time, when the first arc-shaped block rotates, the cut surface has a certain length and still supports the first support, and the first arc-shaped block drives the power assembly to rotate. The power component uses the transmission component to drive the massage component to work continuously to quickly massage the heel, so as to quickly relieve the ischemic state; similarly, when the first support does not support the heel, and the second support supports the leg, the massage component continues to work. Massaging the legs quickly can quickly relieve the ischemic state. In summary, if the ischemic state can be quickly resolved, it can effectively prevent pressure sores.

Further, the power assembly includes a plurality of arc-shaped protruding blocks horizontally and evenly spaced on the cut surface, and the transmission assembly includes a connection hole provided through the first support or the second support, and the connection hole is vertically slidably connected There is a massage stick extending into the arc-shaped groove, the top of the massage stick extends into the arc-shaped groove, the first pulley or the second pulley is connected to the bottom of the corresponding massage stick in rotation, and the first pulley or the second pulley is in the corresponding Roll on multiple raised blocks on the cut surface.

When the first pulley or the second pulley rolls on the plurality of raised blocks on the corresponding cut surface, the plurality of raised blocks continuously push up the massage stick through the pulley, then the massage stick rises and then falls continuously, so that the massage stick A quick massage on the heel or the ischemic part of the leg can quickly relieve the ischemic state and effectively avoid pressure sores.

Further, there are multiple massage sticks, and the tops of the multiple massage sticks are flush with the tops of the connecting holes. On the one hand, the tops of the multiple massage sticks are flush with the tops of the connection holes, which can avoid the discomfort caused by the heel or leg jacking up. On the other hand, multiple massage sticks squeeze and massage at the same time, which has a better effect on relieving ischemia.

Further, the top of the base is fixed with a protective cover covering the bottom of the first support and the second support. The protective cover is used to cover the bottoms of the first support member and the second support member to form protection.

Description of drawings

Fig. 1 is a top view of a lower limb pressure sore prevention device of the present invention;

Fig. 2 is a vertical sectional view of the left view of Fig. 1;

Fig. 3 is a schematic diagram of the structure when the second support member is jacked up in Fig. 2;

Fig. 4 is a top view of the first drive disc and the second drive disc in Fig. 2;

Fig. 5 is a top view of the first drive disc and the second drive disc in Fig. 3;

Fig. 6 is the top view of the first driving disk and the second driving disk in embodiment 2;

Fig. 7 is a vertical sectional view of the first support member in embodiment 2;

Fig. 8 is a vertical sectional view of the massage stick in Fig. 7 during massage.

Detailed ways

The following is further described in detail through specific implementation methods:

The reference signs in the accompanying drawings of the description include: the second support 1, the first support 2, the base 3, the fixing belt 4, the first driving disc 5, the transmission gear 6, the first arc block 7, the second arc Block 8, motor 9, drive gear 10, first pulley 11, second drive disc 12, cut surface 13, protruding block 14, arc groove 15, massage bar 16, second pulley 17.

The orientation words such as "left", "right", "upper" and "down" in the following statements are based on the orientation shown in the figure. In practice, if the corresponding structure is changed in the same direction based on the orientation, the relative position remains unchanged. , without affecting the implementation of the program.

Embodiment 1: A lower extremity pressure sore prevention device, as shown in Figure 1, includes a base 3, the left side and the right side of the base 3 are fixedly connected with a fixing belt 4, and a buckle is fixedly connected between the two fixing belts 4, The base 3 is placed on the hospital bed, and the fixing belts 4 on both sides are bypassed at the bottom of the hospital bed and then fixed with buckles to form a displacement limit for the base 3 .

As shown in Figure 2 and Figure 4, the base 3 is vertically slidably connected with the first support 2 and the second support 1, and the top of the first support 2 and the top of the second support 1 are provided with arc-shaped grooves . Curved grooves follow the shape of the heel and leg for comfort and fit.

The driving assembly is arranged inside the base 3 and is used to lift up the first support 2 or the second support 1 alternately.

The inside of the base 3 is a hollow structure, and the driving assembly includes a motor 9 fixedly connected to the inside of the base 3, and the movable end of the motor 9 is fixedly sleeved with the drive gear 10; The first drive disc 5 and the second drive disc 12 are connected in rotation with the base 3, and the first drive disc 5 and the second drive disc 12 are respectively fixedly sleeved with a drive The transmission gear 6 meshed with the gear 10, the gear ratio of the driving gear and the transmission gear 6 is 1:1; A second arc-shaped block 8 is fixed in the circumferential direction, and horizontal cutting surfaces 13 are provided on the tops of the first arc-shaped block 7 and the second arc-shaped block 8 .

The bottom of the first supporting member 2 is rotatably connected with a first pulley 11 , and the bottom of the second supporting member 1 is rotatably connected with a second pulley 17 . At this time, the first pulley 11 abuts against the cut surface 13 on the top of the first arc-shaped block 7 , and the second pulley 17 abuts against the top of the second driving disc 12 .

Because the first support member 2 or the second support member 1 can only slide in the vertical direction, the cut surface 13 of the first arc-shaped block 7 lifts the first support member 2, the first support member 2 supports the heel, and the second support member 2 supports the heel. The support 1 and the legs are not in contact.

As shown in Figure 3 and Figure 5, after a period of time, the heel is compressed and ischemia occurs. At this time, the motor 9 drives the drive gear 10 to rotate counterclockwise, and the motor 9 drives the drive gear 10 to rotate. The drive gear 10 meshes with it The transmission gear 6 drives the first drive disc 5 and the second drive disc 12 to rotate clockwise, and the first support member 2 or the second support member 1 is vertically slidably connected with the base 3, thereby defining the first support member 2 or the second support member 2 The second supporting member 1 can only move in the vertical direction; the first drive disc 5 drives the first arc block 7 to rotate clockwise, the second drive disc 12 drives the second arc block 8 to rotate clockwise, and the first pulley 11 falls off The first arc-shaped block 7 falls on the first driving disc 5, so that the first support member 2 drops away from the heel, and the second arc-shaped block 8 gradually lifts the second pulley 17 and the second support member 1, and the second The pulley 17 rolls onto the cut surface 13 of the second arc-shaped block 8, and the second support member 1 supports the legs upward.

The first support member 2 drops away from the heel, and the pressure on the contact point between the heel and the first support member 2 disappears to relieve heel ischemia.

Similarly, when the leg is supported by the second support member 1 for a period of time, the starter motor 9 drives the drive gear 10 to rotate clockwise, the second support member 1 falls away from the leg, and the first support member 2 rises to support the heel.

In this scheme, the first support member 2 or the second support member 1 is alternately lifted up by the drive assembly, so that the heel and the leg are alternately in a state of free suspension and no compression, and the heel and leg will not be pressed for a long time, but free The suspended state allows the heel and leg skin blood vessels to quickly flow and replenish blood, and the ischemic area will recover quickly, thereby effectively relieving the heel and leg ischemia and preventing pressure sores on the heel and leg.

Embodiment 2: The difference from Embodiment 1 is that, as shown in FIG. 6, the first support member 2 or the second support member 1 is provided with a connection hole located in the center, and the connection hole is vertically slidably connected with an arc-shaped concave The massage stick 16 in the groove, the top of the massage stick 16 extends into the arc groove, the first pulley 11 is connected to the bottom of the massage stick 16 inside the first support 2, the second pulley 17 is connected to the bottom of the second support The bottom of the massage stick 16 inside the part 1 is rotatably connected, and the cut surface 13 is evenly spaced along the circumferential direction and fixed with five raised blocks 14, and the first pulley 11 or the second pulley 17 is on the five raised blocks 14 on the corresponding cut surface 13 scroll.

When the leg is placed on the second support member 1 (or the rear heel is placed on the first support member 2), and the first support member 2 arc grooves or the second support member 1 arc groove Massage bar 16 contacts, then when the first driving disk 5 and the second driving disk 12 rotate,

As shown in Fig. 7 and Fig. 8, for example, when the first arc-shaped block 7 and the second arc-shaped block 8 rotate, the first support member 2 supports the heel at this moment, the second support member 1 does not support the leg, and the foot When the heel is subjected to pressure for a period of time and an ischemic state occurs, when the first arc-shaped block 7 rotates, the cut surface 13 has a certain length and still supports the first support member 2, and the first arc-shaped block 7 drives the five raised blocks 14 to rotate , 5 protruding pieces 14 continuously push up the massage stick 16 and continue to quickly squeeze and massage the heel, so as to quickly relieve the ischemic state; similarly, when the first support member 2 does not support the heel, the second support member 1. Support the legs, and the massage stick 16 works continuously to quickly massage the legs, so that the ischemic state can be quickly relieved. In summary, the ischemic state can be quickly resolved, and the pressure sore can be effectively prevented.

Preferably, there are multiple massage sticks 16, and the tops of the multiple massage sticks 16 are flush with the tops of the connecting holes. On the one hand, the tops of the multiple massage sticks 16 are flush with the tops of the connecting holes, which can avoid the discomfort caused by heel or leg jacking; good.

For those skilled in the art, under the premise of not departing from the structure of the present invention, many deformations and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the effect and effect of the implementation of the present invention. Patent utility. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (10)

1. Prevent low limbs and press sore device, its characterized in that: comprises a base;

the fixing component is arranged on the base and used for fixing the base;

the first support piece and the second support piece are respectively used for supporting the foot and the leg;

the driving assembly is arranged inside the base and used for jacking the first supporting piece or the second supporting piece alternately.

2. The lower limb pressure sore prevention device as defined in claim 1, wherein: the fixing assembly comprises fixing belts which are symmetrically and fixedly arranged on the base, and the fixing belts on two sides are connected through buckles.

3. The lower limb pressure sore prevention device as defined in claim 2, wherein: the top of the first supporting piece and the top of the second supporting piece are respectively provided with an arc-shaped groove.

4. The lower limb pressure sore prevention device according to any one of claims 1 to 3, wherein: the inside of the base is of a hollow structure, the driving assembly comprises a motor fixedly connected with the inside of the base, and a driving gear is fixedly sleeved at the movable end of the motor; the first driving disk and the second driving disk are respectively positioned under the first supporting piece and the second supporting piece, are both rotationally connected with the base, and are respectively fixedly sleeved with a transmission gear meshed with the driving gear; the top of the first driving disk is provided with a first arc-shaped block along the circumferential direction, and the top of the second driving disk is provided with a second arc-shaped block along the circumferential direction; the first support piece and the second support piece are both in vertical sliding connection with the base, the bottom of the first support piece is abutted with the top of the first arc-shaped block, and the bottom of the second support piece is abutted with the top of the second arc-shaped block.

5. The lower extremity pressure sore prevention apparatus as set forth in claim 4, wherein: the gear ratio of the driving gear to the transmission gear is 1:1.

6. the lower extremity pressure sore prevention apparatus as set forth in claim 5, wherein: the top of first arc piece and second arc piece all is equipped with horizontal tangent plane, and the bottom rotation of first support piece is connected with the first pulley of gliding on first arc piece tangent plane, and the second support piece rotates and is connected with the second pulley of gliding on second arc piece tangent plane.

7. The lower extremity pressure sore prevention apparatus as set forth in claim 6, wherein: the massage components are respectively arranged in the arc-shaped grooves and are used for massaging the heels or the legs; the transmission components are respectively arranged on the first supporting piece and the second supporting piece and are used for driving the corresponding massage components to work; the power components are respectively arranged on the tangent planes and used for driving the corresponding transmission components to work, and the tangent planes have a certain length.

8. The lower extremity pressure sore prevention apparatus as set forth in claim 7, wherein: the power component comprises a plurality of arc-shaped protruding blocks which are horizontally and evenly arranged on a tangent plane at intervals, the transmission component comprises a connecting hole which penetrates through the first supporting piece or the second supporting piece, the connecting hole is vertically and slidably connected with a massage rod which stretches into the arc-shaped groove, the top of the massage rod stretches into the arc-shaped groove, the first pulley or the second pulley is rotationally connected with the bottom of the corresponding massage rod, and the first pulley or the second pulley rolls on the plurality of protruding blocks on the corresponding tangent plane.

9. The lower extremity pressure sore prevention apparatus as set forth in claim 8, wherein: the number of the massage rods is multiple, and the tops of the massage rods are flush with the tops of the connecting holes.

10. The lower extremity pressure sore prevention apparatus as set forth in claim 9, wherein: the base top is fixed to be equipped with the protection casing that covers first support piece and second support piece bottom.

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