Lower limb edema nursing device for nephrology department

Abstract

The invention belongs to the technical field of nursing devices, and particularly relates to a lower limb edema nursing device for the nephrology department. Comprising a bed frame, a first movable plate, a second movable plate and an inflator pump, the first movable plate and the second movable plate are hinged to each other and arranged on the bed frame, an inflatable leg sleeve is arranged on the second movable plate, and the two ends of the inflator pump are connected to the bottom of the first movable plate and the bottom of the second movable plate respectively. The inflator pump is communicated into the inflatable leg sleeve, the lower limbs of a patient extend into the inflatable leg sleeve and push the first movable plate and the second movable plate to be opened and closed in a reciprocating mode through bending and stretching actions, and the first movable plate and the second movable plate are opened and closed in a reciprocating mode to drive the inflator pump to inflate the inflatable leg sleeve and apply pressure to the lower limbs of the patient. A pressure release valve is arranged in the inflatable leg sleeve, a second spring is arranged at the bottom of the first movable plate and the bottom of the second movable plate, and the second spring pulls the first movable plate and the second movable plate to be bent and close to each other; the nursing time can be shortened through cooperative use of equipment.

Description

Technical Field

[0001] This invention belongs to the field of nursing device technology, specifically relating to a nursing device for lower limb edema in nephrology. Background Technology

[0002] The core reason for lower limb edema caused by kidney dysfunction lies in the impaired function of the kidneys in excreting water and regulating electrolytes. When kidney function declines, the kidneys cannot effectively excrete excess sodium and water, leading to water and sodium retention and fluid accumulation in the interstitial spaces. Simultaneously, patients with kidney disease often experience hypoalbuminemia due to protein loss in urine (such as nephrotic syndrome), resulting in decreased plasma colloid osmotic pressure, which promotes fluid leakage from blood vessels into subcutaneous tissues. Furthermore, kidney dysfunction may be accompanied by hypertension or heart failure, further hindering venous return and exacerbating fluid retention in the lower limbs, ultimately leading to edema. This process is the result of the combined effects of decreased kidney excretion function, fluid imbalance, and abnormal intravascular and extravascular fluid exchange. Therefore, patients with kidney dysfunction require the assistance of nursing devices to alleviate symptoms.

[0003] According to the nursing requirements for lower limb edema, the legs should be elevated above heart level (e.g., 20-30 cm) during rest to promote blood return and reduce edema using gravity. Avoid prolonged sitting or standing, and engage in lower limb activities such as dorsiflexion, knee flexion and extension, or walking to promote blood circulation. Wear medical graded compression stockings, gradually reducing pressure from the ankle to the thigh to aid venous return. To alleviate lower limb edema symptoms, patients need to move their lower limbs to promote blood return and also apply pressure with compression stockings. Compression stockings are more suitable for long-term management of chronic, mild to moderate edema due to their convenience and consistency. For patients with acute or severe lower limb edema, inflatable compression devices are more effective, but require equipment support and intermittent use. Therefore, the use of inflatable compression devices for lower limb compression and lower limb muscle and joint exercises need to be performed separately, resulting in a longer daily treatment cycle.

[0004] Therefore, in order to shorten the daily treatment and nursing time for patients' lower limbs, a lower limb edema nursing device for nephrology has been proposed. Summary of the Invention

[0005] To address the aforementioned problems in the existing technology, the present invention provides a nephrology lower limb edema care device.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] This invention discloses a lower limb edema care device for nephrology, comprising a bed frame, a first movable plate, a second movable plate, and an air cylinder. The first and second movable plates are hinged together and mounted on the bed frame. An inflatable leg sleeve is mounted on the second movable plate. The two ends of the air cylinder are respectively connected to the bottom of the first and second movable plates and are connected to the inflatable leg sleeve. The air cylinder communicates with the inflatable leg sleeve. When the patient's lower limb is inserted into the inflatable leg sleeve, the patient pushes the first and second movable plates to open and close repeatedly through flexion and extension movements. The reciprocating opening and closing movements of the first and second movable plates drive the air cylinder to inflate the inflatable leg sleeve and apply pressure to the patient's lower limb.

[0008] Furthermore, a pressure relief valve is provided inside the inflatable leg sleeve.

[0009] Furthermore, a cavity is horizontally opened at the bottom of the second movable plate, and a pulley and a wheel rod are provided in the cavity. The wheel rod is slidably disposed in the cavity, and a first spring is provided between the wheel rod and the bottom of the cavity. The pulley is rotatably disposed on the wheel rod.

[0010] Furthermore, a second spring is provided at the bottom of the first and second movable plates, and the second spring pulls the first and second movable plates to bend and move closer together.

[0011] Furthermore, it also includes a fixed plate, the top edge of the first movable plate is hinged to the top edge of the fixed plate, the fixed plate, the first movable plate and the second movable plate are connected in sequence to form a complete bed board, the fixed plate is provided with a first sliding groove with its opening facing the first movable plate, a first sliding rod is slidably disposed in the first sliding groove, the first movable plate is provided with a second sliding groove communicating with the first sliding groove, the first sliding rod slides into the second sliding groove to restrict the large spring from pulling the first movable plate and the second movable plate to bend.

[0012] Furthermore, a triangular groove is provided at the top of the first slide rod, and the bottom edge of the first movable plate near the fixed plate abuts against the triangular groove to elevate the patient's lower limb on the second movable plate.

[0013] Furthermore, a handle is provided on the first slide bar for tightening the limit.

[0014] Furthermore, the second movable plate is provided with ratchet teeth on the side of the hinged end with the first movable plate, and the first movable plate is provided with anti-return teeth on the side of the hinged end with the second movable plate. The anti-return teeth mesh with the ratchet teeth and fix the posture of the second movable plate.

[0015] Furthermore, the first movable plate also includes a third slide groove, the opening of which faces the fixed plate. A transmission mechanism is provided in the third slide groove. The check tooth is slidably disposed on the first movable plate and perpendicular to the transmission mechanism. The first movable plate abuts against the triangular groove and drives the transmission mechanism to push the check tooth to engage with the ratchet tooth.

[0016] Furthermore, the transmission mechanism includes a second slide rod, and a third spring is provided in the third slide groove to push the bottom of the second slide rod to extend out of the opening end face of the third slide groove. The top side of the second slide rod is an inclined surface. The second slide rod abuts against the triangular groove and pushes the anti-return tooth to extend through the inclined surface and mesh with the ratchet tooth.

[0017] The beneficial effects of this invention are as follows:

[0018] (1) When patients need to apply pressure to their lower limbs while moving them to save daily treatment and nursing time, the thighs and calves of the lower limbs are respectively attached to the first and second movable boards, and the thighs and calves are respectively inserted into the inflatable leg sleeves on the first and second movable boards. The first and second movable boards are opened and closed by the flexion and extension movements of the lower limbs. The air cylinder inflates the inflatable leg sleeves when the first and second movable boards are opened and closed. After the inflatable leg sleeves are inflated, they apply pressure to the lower limbs. As inflation continues, the pressure relief valve on the inflatable leg sleeves will keep the inflatable leg sleeves at a certain pressure, thus achieving pressure on the lower limbs while moving them, reducing the time for treatment and nursing.

[0019] (2) When it is necessary to raise the lower limbs, the first movable plate is supported in the triangular groove of the first slide rod, and the second slide rod is pushed back into the third slide groove by the inner side of the triangular groove. The retraction action of the second slide rod causes the inclined surface at the top of the second slide rod to push the check tooth outward and engage with the ratchet tooth on the second movable plate. Then the second movable plate is rotated to the predetermined height. When it is necessary to lower the second movable plate, the first slide rod is retracted, so that the second slide rod is reset under the action of the third spring. After the check tooth contacts the ratchet tooth, it retracts, so that the second movable plate can rotate freely again.

[0020] (3) When it is necessary to lay the first movable plate and the second movable plate flat, the first sliding rod is pushed into the second sliding groove to limit the first movable plate and prevent the first movable plate and the second movable plate from being lifted. Attached Figure Description

[0021] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the arched structure of the first and second movable plates of the present invention;

[0024] Figure 3 This is a cross-sectional schematic diagram of the position of the air cylinder in this invention;

[0025] Figure 4 This is a cross-sectional schematic diagram showing the positions of the second and third slide grooves of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the second movable plate of the present invention in the raised state;

[0027] Figure 6 This is a schematic diagram of the inner structure of the second movable plate of the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the first movable plate of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the first and second movable plates of the present invention;

[0030] Legend: 1. Bed frame; 2. Fixed plate; 3. First movable plate; 4. Second movable plate; 5. Inflatable leg sleeve; 6. First slide rod; 7. Pulley; 8. Air cylinder; 9. Second spring; 10. Second slide groove; 11. Second slide rod; 12. Ratchet tooth; 13. Pressure relief valve. Detailed Implementation

[0031] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0032] like Figures 1-8 As shown, a nephrology lower limb edema care device of the present invention includes a bed frame 1, a first movable plate 3, a second movable plate 4, and an air cylinder 8. The first movable plate 3 and the second movable plate 4 are hinged to each other and are mounted on the bed frame 1. An inflatable leg sleeve 5 is mounted on the second movable plate 4. The two ends of the air cylinder 8 are respectively connected to the bottom of the first movable plate 3 and the second movable plate 4. The air cylinder 8 is connected to the inflatable leg sleeve 5. The patient's lower limb is inserted into the inflatable leg sleeve 5 and the patient pushes the first movable plate 3 and the second movable plate 4 to open and close repeatedly through flexion and extension movements. The reciprocating opening and closing movements of the first movable plate 3 and the second movable plate 4 drive the air cylinder 8 to inflate the inflatable leg sleeve 5 and apply pressure to the patient's lower limb.

[0033] To alleviate lower limb edema, patients need to move their lower limbs to promote blood return and apply pressure with compression stockings. Compression stockings are more suitable for long-term management of chronic, mild to moderate edema due to their convenience and continuous application. For patients with acute or severe lower limb edema, inflatable compression devices are more effective, but require equipment support and intermittent use. Therefore, the use of inflatable compression devices for lower limb compression and lower limb muscle and joint exercises need to be performed separately, resulting in a longer daily treatment cycle.

[0034] To shorten the daily treatment time or improve the treatment effect within the same treatment time, a first movable plate 3 and a second movable plate 4 are installed on the bed frame 1. These two movable plates 3 and 4 are hinged together and can open and close. When the patient lies on the bed frame 1, their thighs and calves are placed against the first movable plate 3 and the second movable plate 4 respectively. Then, the calves are inserted into the inflatable leg sleeves 5 on the second movable plate 4. The flexion and extension movements of the calves and thighs cause the first movable plate 3 and the second movable plate 4 to open and close accordingly. An air cylinder 8 is connected to the bottom of a first movable plate 3 and a second movable plate 4. The air cylinder 8 has a fixed end and a movable end, which are respectively connected to the bottom of the first movable plate 3 and the second movable plate 4. When the bottom of the first movable plate 3 and the second movable plate 4 open and close under the flexion and extension movements of the patient's thigh and calf, the air cylinder 8 inflates. The air cylinder 8 is connected to an inflatable leg sleeve 5 through an air tube. Therefore, the patient's flexion and extension movements can inflate the inflatable leg sleeve 5 and apply pressure to the calf. Another inflatable leg sleeve 5 can also be set on the first movable plate 3 to apply pressure to the thigh. When the patient performs flexion and extension movements of the lower limbs to promote blood circulation, the inflatable leg sleeve 5 also applies pressure to the lower limbs at the same time to assist venous blood return, thereby relieving the symptoms of lower limb edema. Two functions can be performed simultaneously with one device, which can shorten the daily treatment and care time required by the patient.

[0035] In existing technologies, methods for patients to move their lower limbs in bed generally involve using straps to suspend them for movement, and using elastic stockings to promote blood return in patients with chronic or mild to moderate edema. If an inflatable pressure device is used, it requires assistance from others. In addition, multiple devices are needed to perform multiple movements, which means that multiple items can only be performed separately, resulting in longer treatment and nursing time and relatively poor treatment and nursing effects.

[0036] In the above embodiments, the time required for the patient to perform lower limb flexion and extension movements is relatively long, while the time required for the air cylinder 8 to inflate the inflatable leg sleeve 5 is relatively short. This results in the possibility that the patient's lower limb flexion and extension movement time may be insufficient after the air cylinder 8 has fully inflated the inflatable leg sleeve 5. To avoid this problem, in one embodiment, a pressure relief valve 13 is provided inside the inflatable leg sleeve 5. The pressure relief valve 13 can maintain a suitable pressure value inside the inflatable leg sleeve 5. When the patient's continuous driving action drives the first movable plate 3 and the second movable plate 4 to repeatedly open and close, causing the air cylinder 8 to continuously inflate the inflatable leg sleeve 5, after reaching the pressure value of the pressure relief valve 13, the pressure relief valve 13 will discharge the excess air, so that the inflatable leg sleeve 5 always maintains a pressure value for applying pressure to the patient's lower limbs, which can prolong the time of the patient's lower limb flexion and extension movements.

[0037] When the second movable plate 4 and the first movable plate 3 change from the unfolded state to the bent state, the bottom of the end of the second movable plate 4 (near the bed) will continuously rub against the bed frame 1, causing the patient to have difficulty continuing to perform flexion and extension movements due to excessive friction. In order to reduce the large friction between the second movable plate 4 and the bed frame 1 when opening and closing, in one embodiment, a cavity is horizontally opened at the bottom of the end of the second movable plate 4, and a pulley 7 and a wheel rod are provided in the cavity. The wheel rod is slidably arranged in the cavity, and a first spring is provided between the wheel rod and the bottom of the cavity. The pulley 7 is rotatably arranged on the wheel rod.

[0038] When the first movable plate 3 and the second movable plate 4 are in the unfolded state, the first movable plate 3 and the second movable plate 4 form a plane, and the end of the second movable plate 4 abuts against the inner side of the end of the bed frame 1, so that the pulley 7 retracts into the cavity after being squeezed. After the first movable plate 3 and the second movable plate 4 are bent, the end of the second movable plate 4 separates from the end of the bed frame 1, so that the pulley 7 is pushed out of the cavity under the action of the first spring and slides on the bed frame 1. The friction force when the patient pushes the opening and closing action of the first movable plate 3 and the second movable plate 4 through the flexion and extension of the lower limbs is greatly reduced.

[0039] Since the first movable plate 3 and the second movable plate 4 are completely flat on the bed frame 1 when unfolded, forming a complete plane, it is difficult for the patient to change the first movable plate 3 and the second movable plate 4 from the unfolded state to the bent state when performing flexion and extension movements after inserting the lower leg into the inflatable leg sleeve 5. That is, it is difficult to lift the first movable plate 3 and the second movable plate 4. In order to avoid this problem, in one embodiment, a second spring 9 is provided at the bottom of the first movable plate 3 and the second movable plate 4. The second spring 9 pulls the first movable plate 3 and the second movable plate 4 to bend and move closer together.

[0040] After being connected to the first movable plate 3 and the second movable plate 4 by the second spring 9, when the first movable plate 3 and the second movable plate 4 are in the unfolded state, the tension of the second spring 9 will pull the two ends of the first movable plate 3 and the second movable plate 4 that are far apart to move closer together. Since the second spring 9 is located at the bottom of the first movable plate 3 and the second movable plate 4, the elasticity of the second spring 9 will pull the first movable plate 3 and the second movable plate 4 upwards. Therefore, under the pressure of the patient, the first movable plate 3 and the second movable plate 4 will be pressed into the unfolded state. When the patient raises their lower limb, causing the pressure on the first movable plate 3 and the second movable plate 4 to be released, the first movable plate 3 and the second movable plate 4 will arch back up, providing initial assistance to the patient when performing flexion and extension movements. Simultaneously, because the patient's movements are more inconvenient after lower limb edema, after the patient extends their lower limb, the second spring 9 will pull the first movable plate 3 and the second movable plate 4 to bend back to their original position, assisting the patient in bending their lower limb and completing the flexion and extension movements.

[0041] In one embodiment, the system further includes a fixed plate 2, with the top edge of the first movable plate 3 hinged to the top edge of the fixed plate 2. The fixed plate 2, the first movable plate 3, and the second movable plate 4 are sequentially connected to form a complete bed board. The fixed plate 2 is provided with a first sliding groove with its opening facing the first movable plate 3. A first sliding rod 6 is slidably disposed in the first sliding groove. The first movable plate 3 is provided with a second sliding groove 10 communicating with the first sliding groove. The first sliding rod 6 slides into the second sliding groove 10 to restrict the large spring from pulling the first movable plate 3 and the second movable plate 4 to bend.

[0042] In the above embodiment, the second spring 9 connected to the bottom of the first movable plate 3 and the second movable plate 4 will pull the first movable plate 3 and the second movable plate 4 to bend and arch, making it difficult for the bed frame 1 to be used in normal use. In order to make the bed frame 1 adaptable to different use scenarios, a fixed plate 2 is set. The first slide groove on the fixed plate 2 forms a straight connection with the second slide groove 10 when the first movable plate 3 and the second movable plate 4 are unfolded and flat. When the first slide rod 6 is pushed into the second slide groove 10, the first slide rod 6 is simultaneously in the first slide groove and the second slide groove 10. By pressing the first slide rod 6 against the tendency of the first movable plate 3 and the second movable plate 4 to bend and arch, the first movable plate 3 and the second movable plate 4 are locked. This allows the bed frame 1 and the bed board formed by the first movable plate 3 and the second movable plate 4 and the fixed plate 2 on the bed frame 1 to be used normally when lying flat, and to assist the patient's movements and inflation pressure when used for patient treatment and care.

[0043] Because patients with lower limb edema in the nephrology department require a variety of treatment and nursing care programs to alleviate the degree of lower limb edema, in addition to flexion and extension movements and pressure on the patient's lower limbs, it is also necessary to elevate the lower limbs above the level of the heart when the patient is resting, so as to assist blood return through gravity. In order to achieve this effect, in one embodiment, a triangular groove is provided at the top of the first slide rod 6, the first slide rod 6 extends out and the bottom edge of the first movable plate 3 near the fixed plate 2 abuts against the triangular groove to elevate the patient's lower limb on the second movable plate 4;

[0044] In the above embodiments, although the first movable plate 3 and the second movable plate 4 can be opened and closed repeatedly, it is difficult to form a fixed lifting action. However, by setting a triangular groove on the first slide rod 6, and then extending the first slide rod 6 out of the first slide groove, the first movable plate 3 and the second movable plate 4 are first raised above the first slide rod 6 by the movement of the patient's lower limbs, so that the bottom of the first movable plate 3 can be supported by the triangular groove position on the first slide rod 6. Thus, the first movable plate 3 and the second movable plate 4 are raised by the first slide rod 6, and the patient's lower limbs are raised and blood return is assisted under the action of gravity.

[0045] Furthermore, a handle is provided on the first slide rod 6 for tightening the limit; in order to prevent the first movable plate 3 from moving due to the sliding of the first slide rod 6 after the first movable plate 3 abuts against the triangular groove of the first slide rod 6, and even causing the patient's raised lower limb to fall, the handle on the first slide rod 6 is rotated to tighten the first slide rod 6 after the first slide rod 6 is adjusted to the corresponding position, so that the first slide rod 6 and the first slide groove are relatively stationary, and the first movable plate 3 and the second movable plate 4 are kept in the raised position.

[0046] Since in the above embodiments, fixing the first movable plate 3 by the triangular groove on the first slide rod 6 only raises it to provide some support for the patient's lower limbs, but cannot raise the patient's lower limbs to a horizontal state, in one embodiment, the second movable plate 4 is provided with ratchet teeth 12 at the hinge end of the first movable plate 3, and the first movable plate 3 is provided with anti-return teeth at the hinge end of the second movable plate 4. The anti-return teeth mesh with the ratchet teeth 12 and fix the posture of the second movable plate 4.

[0047] A check tooth is provided on the inner side of the first movable plate 3 and the contact surface of the second movable plate 4, while a ratchet tooth 12 is provided on the corresponding contact surface of the second movable plate 4. The ratchet tooth 12 is arranged in a circumferential array based on the hinge axis. When the patient needs to raise the lower limb, the thigh is raised, causing the first movable plate 3 to rotate and rise based on the hinge point with the fixed plate 2. Then the lower leg is raised, causing the second movable plate 4 to rotate and rise based on the hinge point with the first movable plate 3, so that the lower leg is in a raised state. Since the check tooth and the ratchet tooth 12 mesh with each other, the lower limb is always in a raised state, which can assist blood return through gravity to reduce lower limb edema.

[0048] In the above embodiments, the engagement of the check tooth and the ratchet tooth 12 allows the second movable plate 4 to maintain a raised posture based on the lifting of the hinge point with the first movable plate 3. However, the engagement of the ratchet tooth 12 and the check tooth causes the second movable plate 4 and the first movable plate 3 to rotate only in one direction. Therefore, the second movable plate 4 cannot be lowered after being raised. In order to enable the second movable plate 4 to rotate freely and to be raised when needed, in one embodiment, the first movable plate 3 also includes a third slide groove. The opening of the third slide groove faces the fixed plate 2. A transmission mechanism is provided in the third slide groove. The check tooth is slidably disposed on the first movable plate 3 and is perpendicular to the transmission mechanism. The first movable plate 3 abuts against the triangular groove and drives the transmission mechanism to push the check tooth to engage with the ratchet tooth 12.

[0049] Specifically, the transmission mechanism includes a second slide rod 11, a third spring is provided in the third slide groove to push the bottom of the second slide rod 11 out of the opening end face of the third slide groove, the top side of the second slide rod 11 is an inclined surface, the second slide rod 11 abuts against the triangular groove and pushes the anti-return tooth out through the inclined surface and meshes with the ratchet tooth 12;

[0050] The opening of the third slide groove is in contact with the triangular groove, and in the normal state, the second slide rod 11 protrudes from the end face of the opening of the third slide groove, so that the second slide rod 11 can retract into the third slide groove after being subjected to force. When it is necessary to raise the second movable plate 4, the first slide rod 6 is pushed out, and the bottom of the first movable plate 3 abuts against the triangular groove of the first slide rod 6, so that the opening end face of the third slide groove on the first movable plate 3 abuts against the inner side of the triangular groove, and the second slide rod 11 is pushed back into the third slide groove. At this time, the first slide rod 6 needs to be tightened by tightening the handle on the first slide rod 6 to limit the first slide rod 6. The top side of the second slide bar 11 is an inclined surface, the width of which gradually increases from top to bottom, making the bottom of the inclined surface wider and the top narrower. When the second slide bar 11 retracts, the wider part at the bottom of the inclined surface gradually rises, pushing the check tooth sliding on the first movable plate 3 outward to contact and engage with the ratchet tooth 12. In this case, the second movable plate 4 will be limited and remain stationary after rotating relative to the first movable plate 3, and the patient's lower limbs will be in an elevated state. When it is necessary to lower the first movable plate 3 and the second movable plate 4, the handle is loosened on the first slide bar 6, and the first slide bar 6 is retracted into the first slide groove. At this time, the inner side of the triangular groove no longer abuts against the second slide bar 11, and the second slide bar 11 is pushed out again in the opening direction under the action of the third spring. The check tooth retracts after losing the abutment action of the inclined surface of the second slide bar 11 and contacting the ratchet tooth 12, so that both the first movable plate 3 and the second movable plate 4 can be lowered.

[0051] Because the bottom of the first movable plate 3 and the second movable plate 4 has multiple structures, and the first movable plate 3 and the second movable plate 4 need to perform the actions of unfolding and mounting on the bed frame 1 and retracting their arched shape, it is necessary for the air cylinder 8 and the second spring 9 to be able to be hidden underneath the first movable plate 3 and the second movable plate 4 when they are unfolded and laid flat. Therefore, as Figure 8 As shown, the first movable plate 3 and the second movable plate 4 are hinged at one end with several hinge joints that are interlocked. At different positions below them, hollows are cut out to accommodate the air cylinder 8 and the second spring 9.

[0052] Working principle: When patients need to apply pressure to their lower limbs while they are moving them to save daily treatment and nursing time, the thighs and calves of the lower limbs are placed on the first movable plate 3 and the second movable plate 4 respectively, and the thighs and calves are inserted into the inflatable leg sleeves 5 on the first movable plate 3 and the second movable plate 4 respectively. The flexion and extension movements of the lower limbs cause the first movable plate 3 and the second movable plate 4 to open and close. The opening and closing movements of the first movable plate 3 and the second movable plate 4 cause the air cylinder 8 to inflate the inflatable leg sleeve 5. After the inflatable leg sleeve 5 is inflated, it applies pressure to the lower limbs. As inflation continues, the pressure relief valve 13 on the inflatable leg sleeve 5 will maintain a certain pressure, thus achieving pressure application to the lower limbs while they are moving them, reducing treatment and nursing time. When the lower limbs need to be raised, the first movable plate 3 is supported in the triangular groove of the first slide rod 6, and the inner side of the triangular groove pushes the second slide rod 11 back into the third slide groove. The retraction of the second slide rod 11 causes the inclined surface at the top of the second slide rod 11 to push the check tooth outward and engage with the ratchet tooth 12 on the second movable plate 4. Then, the second movable plate 4 is rotated to a predetermined height. When the second movable plate 4 needs to be lowered, the first slide rod 6 is retracted, causing the second slide rod 11 to reset under the action of the third spring. After the check tooth contacts the ratchet tooth 12, it retracts, allowing the second movable plate 4 to rotate freely again. When the first movable plate 3 and the second movable plate 4 need to be laid flat, the first slide rod 6 is pushed into the second slide groove 10, limiting the first movable plate 3 and preventing the first movable plate 3 and the second movable plate 4 from being lifted.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A nephrology lower extremity edema care device, characterized by: The utility model provides a bed, first movable board, second movable board and inflation cylinder, first movable board and second movable board hinge each other and are arranged on bed frame, second movable board is provided with inflatable leg sleeve, and both ends of inflation cylinder are connected to the bottom of first movable board and second movable board respectively, and inflation cylinder is communicated to inflatable leg sleeve, and patient's lower limbs are inserted into inflatable leg sleeve and are pushed back and forth by flexion and extension action to open and close first movable board and second movable board, and the action of first movable board and second movable board driving inflation cylinder inflates to inflatable leg sleeve and exerts pressure to patient's lower limbs.

2. The nursing device for lower extremity edema in nephrology department according to claim 1, characterized in that: The inflatable leg sleeve is provided with a pressure relief valve.

3. The nursing device for lower extremity edema in nephrology department according to claim 1, characterized in that: The bottom of the second movable board is provided with a cavity, a pulley and a wheel rod are arranged in the cavity, the wheel rod is slidably arranged in the cavity, a first spring is arranged between the wheel rod and the bottom of the cavity, and the pulley is rotatably arranged on the wheel rod.

4. The nephrology lower extremity edema care device of claim 1, wherein: The bottom of the first movable board and the second movable board is provided with a second spring, the second spring pulls the first movable board and the second movable board to be folded.

5. The medical nursing device for lower extremity edema according to claim 4, characterized in that: The first movable board is hingedly connected to the top edge of the fixed plate, the fixed plate, the first movable board and the second movable board are sequentially connected to form a complete bed plate, the fixed plate is provided with a first sliding groove with an opening facing the first movable board, a first sliding rod is slidably arranged in the first sliding groove, the first movable board is provided with a second sliding groove communicating with the first sliding groove, and the first sliding rod is slid into the second sliding groove to limit the first spring from bending the first movable board and the second movable board.

6. The medical nursing device for lower extremity edema according to claim 5, characterized in that: The top of the first sliding rod is provided with a triangular groove, the first sliding rod extends out, and the bottom edge of the side of the first movable board close to the fixed plate abuts on the triangular groove to lift the patient's lower limbs on the second movable board.

7. The medical nursing device for lower extremity edema according to claim 6, characterized in that: A handle is arranged on the first sliding rod for tightening.

8. The medical nursing device for lower extremity edema according to claim 6, characterized in that: The side of the second movable board at the hinge end is provided with a ratchet tooth, the side of the first movable board at the hinge end is provided with a check tooth, the check tooth engages with the ratchet tooth to fix the posture of the second movable board.

9. The medical nursing device for lower extremity edema according to claim 8, characterized in that: The first movable board further includes a third sliding groove, the third sliding groove has an opening facing the side of the fixed plate, a transmission mechanism is arranged in the third sliding groove, the check tooth is slidably arranged on the first movable board and perpendicular to the transmission mechanism, and the first movable board abuts on the triangular groove and drives the transmission mechanism to push the check tooth to engage with the ratchet tooth.

10. The medical device for treating lower extremity edema according to claim 9, wherein: The transmission mechanism includes a second sliding rod, a third spring is arranged in the third sliding groove to push the bottom of the second sliding rod to extend out of the opening end of the third sliding groove, the top side of the second sliding rod is an inclined surface, the second sliding rod abuts on the triangular groove and pushes the check tooth to extend out and engage with the ratchet tooth through the inclined surface.

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