CN113018049B

CN113018049B - Be used for severe patient's low limbs to raise nursing device

Info

Publication number: CN113018049B
Application number: CN202110288270.7A
Authority: CN
Inventors: 李秋萍; 韩斌如; 陈曦; 陈婷
Original assignee: Xuanwu Hospital
Current assignee: Xuanwu Hospital
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2022-06-03
Anticipated expiration: 2041-03-17
Also published as: CN113018049A

Abstract

The invention relates to a nursing device for raising the lower limbs of critically ill patients. It at least includes a support base and an adjustable insert set on the support base for fixing the patient's legs. The adjustable insert is movably connected with the support base in a manner that can move relative to the support base in the horizontal and vertical directions in space to change the fixed angle of the patient's leg. The adjustable insert includes a connecting part for connecting to the support base and a fixing part for fixing the patient's leg, and the fixing part is connected with the connecting part in a manner that can be rotated relative to the connecting part based on the driving of the patient's leg to adapt to the change of the patient's body position Ministry activity link. The invention is simple in structure and convenient to use, makes up for the defect of the prior art that it is inconvenient to change the patient's body position, facilitates the caregiver to easily change the patient's body position, and can change the relationship between the fixed part and the patient's lower limb without changing the elevation angle of the patient's lower limb. Contact position, safe to use.

Description

Be used for severe patient's low limbs to raise nursing device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a nursing device for lifting lower limbs of critically ill patients.

Background

The severe patients have fast disease change and limited self-care ability, and are usually required to be bedridden for treatment, the patients who are bedridden for a long time have extremely high pressure injury occurrence risk, data show that under the condition of not receiving proper prevention and treatment, the incidence rate of the pressure injury of the severe patients is 14% -42%, and good-haired parts are carina protuberans such as sacral tails, heel parts and the like. In the care of critically ill patients, it is necessary to take various measures to prevent adverse events such as stress injuries in the patients. In clinical care work, for severe patients who are bedridden for a long time, the lower limbs of the patients need to be raised, so that the blood backflow is accelerated, and the lower limb edema is prevented; meanwhile, the feet are kept suspended and are not pressed, so that the heel part is prevented from being damaged by pressure due to long-term pressing.

In the prior art, a plurality of types of devices for lifting the lower limbs exist, and one part of the devices adopts a suspension type, a support is arranged on a sickbed, and the lower limbs of a patient are lifted by related machines such as pulleys, so that the problems of edema of the lower limbs of the patient and the like are solved. For example, CN110812116A discloses a support is raised to multi-functional low limbs with adjustable it is easy to use, comprising a base plate, the right side slidable mounting of bottom plate upper surface has the riser, and fixed mounting has electric telescopic handle on the upper surface of the bottom plate that is located perpendicular version right side, and electric telescopic handle's output and the right side fixed connection of riser, the top fixed mounting of riser has the roof, the below of roof is provided with two arcs. When using, control switch passes through the derailleur and carries out flexible control to electric telescopic handle through utilizing for riser and arc are controlled the adjustment and are removed, with the height demand of adaptation patient, make patient's sole hug closely the arc, thereby driving the drive shaft positive and negative rotation through step motor, thereby it moves in order to reach raising and taking exercise to patient's low limbs to drive the flexible or extension pulling patient's foot on the arc of pull wire, and the effect of massage sole acupuncture point. But the device is to patient's suspension in-process entangle patient's foot through the lantern ring that the haulage rope is close to patient's one end and carry, for the thinner pull wire of cooperation reaches good traction effect, the width of lantern ring needs to set up to narrower. And narrower lantern ring is little to patient's shank area of contact, easily takes place the risk of pressure nature damage to can produce the friction with patient's shank skin at the in-process of repeated raising and reducing, increase the heat of lantern ring and shank contact surface, increased patient's shank pressure nature damage's risk. In addition, in the process of pulling the legs of the patient to move up and down by the traction wire, the legs of the patient are easy to shake in the left-right direction due to friction factors of the sole of the patient and the massage device on the surface of the arc plate, the traction is unstable, and the massage effect is poor; and the toes are clamped in the massage device during the shaking process, and at the moment, the traction of the traction rope can cause dangerous situations such as toe fracture of the patient and the like.

Besides the traction type lifting device, the lower limb support type lifting device can be used for lifting the lower limbs of a patient in an angle adjusting mode by placing the lower limb support type lifting device on a sickbed to support the legs of the patient. For example, CN108324465B is a supporting type lifting device, which comprises a lifting device body; the lifting device body comprises a lifting part, a fixing part and a lifting mechanism; wherein, the lifting part is connected with one end of the fixing part, and the other end is an opening part which can be opened and closed; the lifting mechanism is arranged between the lifting part and the fixing part and used for adjusting the size of the opening part; the lifting part is of a multi-section structure and consists of at least two section units, and rotatable joint joints are arranged between the section units; the lifting part is also provided with at least one adjusting mechanism; and the adjusting mechanism is used for adjusting the angle between the segmentation units. When the leg lifting device is used, the legs of a patient are fixed on the fixing part, and the lifting angle of the fixing part is adjusted by adjusting the lifting part, so that the legs of the patient are lifted. The relatively pulling type lifting device has the defect that friction is easily generated due to unstable pulling, the supporting type lifting device can stably lift the lower limbs of a patient, the contact area between the relatively pulling type lifting device and the legs of the patient is larger, and the risk of pressure injury is relatively smaller. However, for patients who are bedridden for extended periods, the risk of pressure injury remains with continued contact. The patient's shank keeps in contact with strutting arrangement for a long time and because gravity is oppressed, and the blood flow speed slows down, lies down for a long time in addition for patient's health metabolism slows down, is unfavorable for nutrient element's absorption, and the health quality is relatively weak, produces the risk improvement of pressure nature damage. When the patient needs to change the body position, the legs of the patient are unstably fixed on the supporting device, and the legs of the patient are easy to slip off and hurt; when the patient changes the body position, the heights of the two corresponding legs need to be adjusted, and the existing supporting device does not support the position change and adjustment of the two legs, namely the change of the body position cannot be adapted.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a nursing device for raising lower limbs of critically ill patients, which can be matched with nursing staff to easily change the body position of the patients and change the contact position with the legs of the patients according to the regular body position change condition of the patients, so that the risk of bedsore of the patients lying in bed for a long time is extremely high.

The invention provides a nursing device for raising lower limbs of a critically ill patient, which at least comprises a support base and an adjustable plug-in component arranged on the support base and used for fixing the legs of the patient, wherein the adjustable plug-in component is movably connected with the support base in a mode of moving in the horizontal and vertical directions in space relative to the support base to change the fixed angle of the legs of the patient.

According to a preferred embodiment, the connecting portion includes an upper end and a lower end, the upper end of the connecting portion is provided with a notch in a manner capable of accommodating the leg fixing portion, two ends of the notch are provided with arc-shaped slide rails in a manner capable of limiting a rotation track of the fixing portion, a guide rail for guiding the fixing portion to move relative to the arc-shaped slide rails is arranged in the concave portion of the arc-shaped slide rails, and a connecting groove matched with the guide rail is arranged on the periphery of the fixing portion in a manner capable of being connected with the upper end of the connecting portion and guided by the guide rail.

According to a preferred embodiment, the two sides of the arc-shaped slide rail are provided with front and rear limiting parts which are engaged with the periphery of the fixing part in such a manner that the movement of the fixing part in the direction parallel to the extension direction of the legs of the patient can be limited, and in the case where the fixing part is provided in the arc-shaped slide rail through the connecting groove, the front and rear limiting parts are connected with the fixing part through a shape-engaging manner in such a manner that the force from the non-rotational direction applied to the fixing part can be offset.

According to a preferred embodiment, the arc-shaped slide rail is provided with a telescopic rolling limiting part on the guide rail in a manner of limiting the rotation of the fixing part, and a plurality of limiting holes matched with the rolling limiting part in an extended state are arranged on one side, close to the rolling limiting part, in the connecting groove of the fixing part.

According to a preferred embodiment, the adjustable plug-in components are arranged on a first surface of the support base, which is far away from the ground, and comprise a first adjustable plug-in component and a second adjustable plug-in component, a first arc-shaped chute and a second arc-shaped chute are oppositely arranged on the first surface, and the first adjustable plug-in component and the second adjustable plug-in component can respectively move along the first arc-shaped chute and the second arc-shaped chute according to the mode of being capable of adapting to the posture of the two legs of the patient in different positions and changing the fixed positions of the legs.

According to a preferred embodiment, the first adjustable plug-in unit and the second adjustable plug-in unit are limited in the first arc-shaped sliding groove and the second arc-shaped sliding groove respectively through a first fixing rod and a second fixing rod, the first fixing rod and the second fixing rod are respectively arranged at one end, close to the first surface of the supporting base, of the lower end of the connecting portion of the first adjustable plug-in unit and the second adjustable plug-in unit, the first fixing rod and the second fixing rod respectively comprise a first clamping piece and a second clamping piece, a containing cavity for containing the fixing rod is arranged below the opening of the first arc-shaped sliding groove and the opening of the second arc-shaped sliding groove, the first clamping piece and the second clamping piece are arranged outside the containing cavity according to the mode that the moving track of the fixing rod can be limited in the first arc-shaped sliding groove and the second arc-shaped sliding groove, and the second clamping piece is arranged in the containing cavity.

According to a preferred embodiment, first clamping piece and second clamping piece can be relative the dead lever activity, first clamping piece and second clamping piece include interconnection pole and outer clamping piece respectively first clamping piece and second clamping piece are relative the dead lever moves when the distance is the biggest each other, at least first clamping piece with dead lever between the second clamping piece is hollow pole, wherein, the outer wall of hollow pole with hollow pole center pin is provided with a plurality of spouts in parallel, and at least two interconnection poles that intersect each other set up in hollow pole inside, the interconnection pole according to can with outer clamping piece simultaneous movement's mode is run through the spout with outer clamping piece is connected.

According to a preferred embodiment, a partition plate is arranged in the middle of the hollow fixing rod, and a first inner connecting rod corresponding to the first clamping piece is connected with one side, close to the first clamping piece, of the partition plate through a first spring; a second inner connecting rod corresponding to the second clamping piece is connected with one side, close to the second clamping piece, of the partition board through a second spring; so that the first spring and the second spring can accumulate elastic potential energy which is enough to push the first clamping piece and the second clamping piece towards the direction of increasing the distance between the first clamping piece and the second clamping piece in the process that the first inner connecting rod and the second inner connecting rod move towards each other under the driving of the first outer clamping piece corresponding to the first clamping piece and the second outer clamping piece corresponding to the second clamping piece.

According to a preferred embodiment, the fixing part comprises an outer ring and an inner ring, the outer ring and the inner ring are connected through a size adjusting device, the inner ring is used for limiting a leg accommodating space, the inner ring comprises an upper half ring and a lower half ring, one sides of the upper half ring and the lower half ring, which are far away from the center of the circular ring, are respectively connected with the outer ring through the size adjusting device, and the upper half ring and the lower half ring are connected through a belt in a mode that the size of the leg accommodating space can be adjusted.

According to a preferred embodiment, the lower end of the connecting portion of the adjustable insert is telescopically arranged in such a way that the height of the fixing portion can be varied to adapt to changes in the patient's posture.

The beneficial technical effects of the invention at least comprise one of the following:

first, through the setting of the relative connecting portion pivoted fixed part of shank that can follow the patient, can follow the rotatory self of the rotary motion that the patient shank must pass through in the position transform when supporting patient's shank, the shank that rotates through following the patient can help the nursing staff easily to change patient's the posture of lying, the nursing staff need not take out patient's shank from fixing device and place the back again after putting well, and only need relieve the roll locating part of fixed part and can easily change patient's position, and be difficult for causing the torsion of patient's health or low limbs.

And the second adjustable plug-in components can move in the first arc-shaped sliding groove and the second arc-shaped sliding groove of the first supporting base, so that the positions and the fixation of the first adjustable plug-in components and the second adjustable plug-in components are stable and flexible, the adjustable plug-in components can be adjusted according to different actual requirements, and the lower ends of the telescopic connecting parts and the lower limbs of a plurality of angle adjustment patients can be matched to fix the height. And, at the in-process of following first arc spout and the activity of second arc spout, can also change the contact position of first fixed part and second fixed part and patient's shank, through the unchangeable of the change of contact position and lift height, the assurance device's that can the very big degree practicality with reduce to use and raise the risk that the device produced bedsore.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a schematic view of the connection of a preferred embodiment of the arcuate slide and outer ring of the present invention;

FIG. 3 is a schematic view of the first and second arcuate chutes of the present invention;

FIG. 4 is a schematic structural view of a preferred embodiment of the fixation rod of the present invention;

fig. 5 is a schematic structural view of a preferred embodiment of the fixing part of the present invention.

List of reference numerals

100: the supporting base 200: connecting part 300: fixing part

210: connecting portion lower end 220: connection portion upper end 230: arc-shaped sliding rail

310: outer ring 320: the inner ring 231: guide rail

232: front and rear stoppers 311: the connection groove 312: limiting hole

233: rolling the limiting part 110: first surface 211: first arc chute

212: second arc chute 240: first fixing lever 241: first clamping piece

242: the second jaw 2411: the first outer jaw 2421: second outer clamping piece

2412: first inner connecting rod 2422: second inner connecting rod 243: partition board

244: chute 245: first spring 246: second spring

330: size adjusting means 321: upper half ring 322: lower semi-ring

323: strap 3231: length adjusting device 247: first position limiting part

248: second stopper 250: second fixing rod

Detailed Description

This is described in detail below with reference to fig. 1-5.

Example 1

The present embodiment shows a care device for the lifting of the lower limbs of critically ill patients, comprising at least a support base 100 and an adjustable insert. The adjustable insert is disposed on the support base 100. The adjustable insert comprises a connecting part 200 and a fixing part 300, wherein the connecting part 200 is used for connecting the adjustable insert and the support base 100, and the fixing part 300 is used for fixing the lower limb of the patient. The link 200 includes a lower end close to the support base 100 and an upper end far from the support base 100. The upper end of the connection part 200 is provided with a semicircular notch. The semicircular notches are used for connecting the fixing part 300. The fixing portion 300 is rotatably connected to the semicircular notch. When the leg of the patient is placed in the fixing part 300 and the patient needs to change the body position, the fixing part 300 can rotate relative to the upper end of the connecting part 200 so as to adapt to the change of the posture of the leg after the body position of the patient is changed. An arc-shaped sliding rail 230 deviating from the ground is arranged in the semicircular gap at the upper end of the connecting part 200, and the periphery of the fixing part 300 is movably connected with the arc-shaped sliding rail 230 and is arranged in the semicircular gap.

According to a preferred embodiment, the arc-shaped sliding rail 230 is concave in shape in such a way as to stably limit the movement locus of the fixing portion 300. The arc slide rail includes: a guide rail 231, a front and rear stopper 232, and a rolling stopper 233 provided on the guide rail 231. The guide rail 231 serves to limit the rotational direction and the rotational range of the fixing part 300. The rolling stoppers 233 serve to limit the rotation of the fixing part 300 so that the fixing part 300 can be fixed without further rotation after reaching a suitable position. Not only ensures the convenience of use, but also ensures the safety of use. The front and rear stoppers 232 are used to limit the front and rear movement of the fixing portion 300 engaged with the arc-shaped slide rail 230 on the extension line of the patient's leg. So as to ensure the stability and safety of the fixing part 300 during the process of using the fixing part 300. The back side of the concave surface of the arc-shaped sliding rail 230 has at least a certain length connected with one end surface of the semicircular notch, which is far away from the ground. The guide rail 231 is disposed at the lowest part of the concave arc-shaped slide rail 230, and the front and rear stoppers 232 are disposed at both sides of the concave arc-shaped slide rail 230, so that when the fixing portion 300 is movably connected to the guide rail 231, the side surface of the fixing portion 300 can abut against the front and rear stoppers 232, thereby limiting the movement of the fixing portion 300 in a non-guide-rail-limiting direction generated by an external force along the front and rear direction on the extension line of the leg of the patient. The engagement between the front and rear stoppers 232 and the fixing portion 300 may be performed so as to abut each other in a form-fit manner. Thereby realizing the fixation of the fixing part 300 on the arc-shaped slide rail 230. For example, the engagement between the front and rear stoppers 232 and the fixing portion 300 may be in the shape shown in fig. 2. Through above mode of setting up, be favorable to fixed part 300 and arc slide rail 230's stable connection, through the conjunction of guide rail 231 and fixed part 300 periphery and the block of front and back locating part 232 and fixed part 300, make fixed part 300 restricted in arc slide rail 230, thereby fixed part 300 can rotate in order to adapt to the different position changes of patient based on the relative arc slide rail 230 of external force applied through patient's shank, and fixed part 300 is at the difficult condition that takes place derailment and turnover of pivoted in-process, can fully guarantee the device stability and the safety in utilization that nursing device was raised to the low limbs.

According to a preferred embodiment, as shown in fig. 5, the fixing portion 300 includes an outer ring 310 and an inner ring 320. The outer ring 310 is adapted to be coupled to the arcuate slide 230 and the inner ring 320 is adapted to be coupled to the patient's leg. As shown in fig. 2, the outer ring 310 is provided with a connecting groove 311 in a manner of being movably connected with the guide rail 231 inside the arc slide rail 230. A front and rear limiting groove matched with the shape of the front and rear limiting member 232 is provided at a position corresponding to the front and rear limiting member 232 after being connected to the guide rail 231 through the connecting groove 311. The outer ring 310 is tightly connected with the arc-shaped sliding rail 230 through a limiting groove and a connecting groove 311. Preferably, a plurality of limiting holes 312 capable of engaging with the rolling limiting members 233 are uniformly disposed in the connecting slots 311 of the outer ring 310 of the fixing portion 300 connected to the arc-shaped slide rail 230. Through above mode of setting for the fixed part can be by stable fixed after rotating arbitrary position, thereby makes fixed part 300 can follow patient's shank and rotate arbitrary position and can be fixed by arbitrary position, and adaptability is good, makes things convenient for patient's use. In use, after the adjusting device raises the lower limbs of the patient to a suitable height, the rolling limiting member 233 is clamped into the limiting hole 312 in the connecting groove 311, so that the fixing portion 300 is fixed. When the patient needs to change the body position, the rolling limiting piece 233 is controlled to be separated from the limiting hole 312, so that the fixing part 300 can move relative to the connecting part 200 again, the caregiver or the patient can change to the proper body position by moving the leg of the patient, force is applied to the fixing part 300 when the body position of the leg of the patient is changed in the process, the fixing part 300 rotates relative to the connecting part 200 along with the change of the leg of the patient based on the force, the position is changed to the proper position, and the limiting piece 233 is controlled to be clamped into the limiting hole 312 again, so that the fixing part 300 is fixed again. Such an arrangement is advantageous: 1. the patient can conveniently change the body position. When the patient needs to change the body position, the body position conversion process of the patient can be easily completed only by retracting the rolling limiting piece 233 and applying force to the leg of the patient to enable the fixing part 300 to rotate to a new proper position and fix again, and the leg of the patient does not need to be taken out of the fixing part 300. Not only saves time, but also saves more labor. 2. Reduce friction and skin damage. The fixing part 300 can reduce the friction between the fixing part 300 and the leg of the patient in the process of changing the body position of the patient by the way of rotating along with the force application of the leg of the patient, so that the skin injury of the leg of the patient can be avoided, and accidents such as sprain of the leg of the patient can be avoided.

According to a preferred embodiment, the rolling position limiter 233 can be controlled to be inserted into the position limiting hole 312 to limit the movement of the fixing portion 300 or to be moved out of the position limiting hole 312 in a wired or wireless manner so that the fixing portion 300 can move as required. Preferably, the roll stopper 233 may be implemented as a device that is extended and retracted by electric power, for example, an electric push rod, etc. The rolling stoppers 233 are disposed on the guide rail 231, and preferably, in order to secure a stopper effect, the number of the rolling stoppers 233 is set to at least two.

According to a preferred embodiment, shown in fig. 5, the anchoring portion 300 includes an outer ring 310 and an inner ring 320. The outer ring 310 and the inner ring 320 are connected by a size adjustment device 330. Preferably, the size adjusting means 330 may be a spring. Inner ring 320 defines the size of the leg receiving space. The inner ring 320 comprises an upper half ring 321 and a lower half ring 322, and the sides of the upper half ring 321 and the lower half ring 322 facing away from the inner ring are connected with the side of the outer ring 310 facing the inner ring through at least one spring, so that the distance between the upper half ring 321 and the lower half ring 322 can be changed, and the leg accommodating space defined by the upper half ring 321 and the lower half ring 322 can be sized to adapt to the leg thickness difference of different patients. Preferably, the middle of the side of the upper half ring 321 and the lower half ring 322 facing away from the ring is provided with a groove parallel to the extending direction of the ring. A binding belt 323 is arranged in the groove, and a first end of the binding belt 323 sequentially penetrates through the grooves on the upper half ring 321 and the lower half ring 322 and then is connected with a second end. A length adjusting device 3231 is arranged at the first end and/or the second end of the strap 323, the length of the strap 323 can be adjusted by adjusting the length adjusting device 3231, and the distance between the upper half ring 321 and the lower half ring 322 can be adjusted by adjusting the length of the strap 323, so as to adjust the size of the leg accommodating cavity. So as to adapt to the thickness degree of the legs of different patients, and the legs of any patient can be stably fixed without generating larger friction and pressure, and the risk of pressure injury is reduced. Preferably, the upper half ring 321 and the lower half ring 322 are further provided with a gel pad on one side facing the inside of the ring, the gel pad has good elasticity, can disperse pressure, has a good constant temperature effect, can reduce the pressure and heat of the contact part of the leg of the patient and the gel pad, and reduces the risk of pressure injury of the contact part of the leg of the patient and the fixing part 300.

According to a preferred embodiment, the lower end of the connecting portion 200 of the adjustable insert is configured to controllably raise the upper end of the connecting portion 200 and the fixing portion 300 disposed at the upper end of the connecting portion 200, so as to flexibly adjust the raised height of the lower limb of the patient by such a raising manner. Preferably, the lower end of the connecting part 200 is provided with a slow push rod motor, and the output end of the slow push rod motor is connected with the upper end of the connecting part 200, so that the upper end of the connecting part 200 and the fixing part 300 can be driven to move up and down when the push rod of the push rod motor is extended and shortened, the lifting height of the legs of the patient and the lifting angle of the lower limbs of the patient can be controlled, and different disease courses and body position requirements can be met.

According to a preferred embodiment, as shown in fig. 3, the adjustable insert comprises a first adjustable insert and a second adjustable insert. The first and second adjustable inserts are adapted to secure the left and right legs of the patient, respectively, and may be used individually when desired. The first adjustable insert and the second adjustable insert are both disposed on a first side 110 of the support base 100 away from the ground. The first side of the support base 100 is further provided with a first arc-shaped sliding groove 211 and a second arc-shaped sliding groove 212 oppositely. First adjustable plug-in components and second adjustable plug-in components set up respectively in first arc spout 211 and second arc spout 212 to make first adjustable plug-in components and second adjustable plug-in components can follow first arc spout 211 and second arc spout 212 respectively and remove, when needs alternate the position, drive first adjustable plug-in components and second adjustable plug-in components and remove so that can easily remove patient's both legs in order to change patient's position under the condition that need not manually lift up patient's both legs through removing the both legs, and can keep patient's both legs interval at comfortable distance, the pressure that has alleviateed nursing staff and can guarantee the security at the in-process that the patient changed the position. Preferably, a fixing rod 240 is disposed at an end of the lower end 210 of the connecting portion of the first adjustable plug-in unit, which is far away from the fixing portion 300, a first clamping piece 241 and a second clamping piece 242 are disposed on the fixing rod 240, and an accommodating cavity for accommodating an end of the fixing rod 240, which is far away from the connecting portion 200, and the second clamping piece 241 are disposed below the openings of the first arc-shaped sliding chute 211 and the second arc-shaped sliding chute 212. The second clamping piece 241 is disposed in the accommodating cavity of the first arc sliding slot 211, the first clamping piece 242 is disposed outside the opening of the accommodating cavity near the lower end 210 of the connecting portion, the diameters of the first clamping piece 241 and the second clamping piece 242 are larger than the opening of the sliding slot 244 of the first arc sliding slot 211, and the diameter of the fixing rod 240 is equal to the opening of the first arc sliding slot 211, so that the first fixing rod 240 is limited in the first arc sliding slot 211 by the first clamping piece 241 and the second clamping piece 242. Preferably, the first fixing lever 240 is cylindrical such that the direction of the fixing portion can be always maintained toward the body extension direction of the patient during sliding along the first and second

arc sliding grooves

211 and 212. The second adjustable plug-in unit has the same structure as the first adjustable plug-in unit, and has a corresponding second fixing rod 250 having the same structure as the first fixing rod 240, and the second fixing rod 250 is also arranged in the same manner as the first fixing rod 240 so as to limit the movement track of the second adjustable plug-in unit in the second arc-shaped chute 212.

According to a preferred embodiment, a first jaw 241 and a second jaw 242 are movably coupled to the securing lever 240. The fixing bar 240 is configured as a hollow bar at least in a distance between the first jaw 241 and the second jaw 242 when the first jaw 241 and the second jaw 242 are spaced farthest apart, and is provided with a slide groove 244 parallel to a central axis of the hollow bar, which communicates a cavity inside the hollow bar with an environment outside the hollow bar. Preferably, the first jaw 241 includes a first inner connecting rod 2412 disposed inside the hollow rod and a first outer jaw 2411 disposed outside the hollow rod. At least two first inner connecting rods 2412 crossing each other are connected to the first outer clamping pieces 2411 through the sliding grooves 244. At least two second inner connecting rods 2422 crossing each other are connected to the second outer clamping pieces 2421 through the sliding slots 244, so that the movement of the inner connecting rods can drive the movement of the outer clamping pieces. A partition 243 is fixedly arranged in the middle of the hollow rod, one end surface of the partition 243 facing the first clamping piece 241 is connected with a first inner connecting rod 2412 of the first clamping piece 241 through a first spring 245, one end surface of the partition 243 facing the second clamping piece 242 is connected with a second inner connecting rod 2422 of the second clamping piece 242 through a second spring 246, so that under the condition that the first outer clamping piece 2411 corresponding to the first clamping piece 241 and the second outer clamping piece 2421 corresponding to the second clamping piece 242 corresponding to the first clamping piece 242 move oppositely due to external force, the first inner connecting rod corresponding to the first clamping piece 241 and the second inner connecting rod 2422 corresponding to the second clamping piece 242 arranged in the hollow rod can be driven to move, so that the first spring 245 and the second spring 246 can accumulate elastic potential energy based on the movement, and after the accumulated elastic potential energy is released, the first inner connecting rod 2412 and the second inner connecting rod 2422 can be pushed to move oppositely to the hollow rod along a sliding groove 244 arranged in the hollow rod, thereby moving the first jaw 241 and the second jaw 242 in a direction in which they become distant from each other. The first side 110 of the support base 100 is disposed to be capable of being controlled to generate or eliminate magnetic force, either entirely or at least near the openings of the first arc chute 211 and the second arc chute 212. The first jaw 241 and the second jaw 242 are made of a material that can be attracted by the magnetic force other than a magnet. When the magnetic force is generated in the magnetic force area, the first clamping piece 241 and the second clamping piece 242 are attracted by the magnetic force to move toward the direction close to each other to be in close contact with the upper surface of the supporting base 100, so that the static friction force between the first clamping piece 241 and the first surface 110 of the supporting base 100 and the static friction force between the second clamping piece 242 and the first surface 110 of the supporting base 100 are increased, the gravity of the leg of the patient is smaller than the static friction force, the adjustable clamping piece cannot be pushed to move relative to the first arc-shaped sliding groove 211 and the second arc-shaped sliding groove 212, and the fixing rod 240 is stably fixed at the proper position of the arc-shaped sliding rail 230. And the first and

second jaws

241 and 242 bring the first and second inner connecting

rods

2412 and 242 toward the partition so that the first and

second springs

245 and 246 are compressed to accumulate elastic potential energy. When the magnetic force disappears, the first spring 245 and the second spring 246 release the accumulated elastic potential energy, so as to push the first connecting rod 2412 and the second inner connecting rod 2422 to move away from the partition, and drive the first clamping piece 241 and the second clamping piece 242 to move in the direction away from each other until reaching the position defined by the first limiting piece 247 and the second limiting piece 248 on the fixing rod 240, so that the static friction force between the first clamping piece 241 and the first surface 110 and the second clamping piece 242 is reduced, and the fixing rod 240 can slide in the arc-shaped sliding rail 230 again. Preferably, the movement of the first adjustable insert and the movement of the second adjustable insert are independent of each other. In addition, in the process that the first adjustable insert and the second adjustable insert move along the first arc-shaped sliding groove 211 and the second arc-shaped sliding groove 212 respectively, the corresponding fixing part 300 on the first adjustable insert can generate displacement towards the horizontal direction of the sole of the foot of the patient, and the corresponding fixing part 300 on the second adjustable insert can generate displacement towards the horizontal direction of the thigh of the patient, so that the contact position of the fixing part 300 and the leg of the patient can be changed in the process of changing the body position of the patient, the contact time of the fixing part 300 and a certain fixing part 300 of the leg of the patient cannot exceed the interval time of changing the body position of 2h-3h, and therefore the risk of bedsore caused by the contact position of the leg of the patient and the fixing part 300 can be reduced. Such an arrangement is advantageous: the contact position of the leg of the patient and the fixing part 300 can be changed along with the change of the body position of the patient, so that the contact position of the device and the patient can be easily changed in the process of changing the body position of the patient, the compression time of the fixing part is shortened, and the bedsore can be reduced for the patient to change the body position in time, so that the risk of bedsore generation at the contact position of the leg of the patient and the fixing part 300 can be greatly reduced by the arrangement mode; on the other hand, the position of the patient is changed more conveniently by the aid of the arrangement mode, the position of the fixing part 300 can be flexibly adjusted according to actual needs of the patient after the position of the patient is changed, comfort of the patient is improved, and the patient can use the device more conveniently.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. A lower limb lifting nursing device for critically ill patients at least comprises a supporting base (100) and an adjustable plug-in component which is arranged on the supporting base (100) and is used for fixing the legs of the patients, the adjustable plug-in component can be movably connected with the supporting base (100) relative to the supporting base (100), and is characterized in that,

the adjustable insert comprises a connecting part (200) used for being connected to a supporting base (100) and a fixing part (300) used for fixing the leg of a patient, wherein the fixing part (300) is movably connected with the connecting part (200) in a mode that the fixing part can rotate relative to the connecting part (200) based on the driving of the leg of the patient so as to adapt to the posture change of the patient;

the adjustable plug-in is arranged on a first surface (110) of the support base (100) far away from the ground, the adjustable plug-in comprises a first adjustable plug-in and a second adjustable plug-in, and a first arc-shaped sliding groove (211) and a second arc-shaped sliding groove (212) are oppositely arranged on the first surface (110);

the first adjustable plug-in unit and the second adjustable plug-in unit are respectively limited in a first arc-shaped sliding groove (211) and a second arc-shaped sliding groove (212) through a first fixing rod (240) and a second fixing rod (250), the first fixing rod (240) and the second fixing rod (250) are respectively arranged at one end, close to the first surface (110) of the supporting base (100), of the lower end (210) of the connecting part of the first adjustable plug-in unit and the second adjustable plug-in unit, the first fixing rod (240) and the second fixing rod (250) respectively comprise a first clamping piece (241) and a second clamping piece (242),

an accommodating cavity for accommodating the fixing rod is arranged below the opening of the first arc-shaped sliding chute (211) and the second arc-shaped sliding chute (212), the first clamping piece (241) and the second clamping piece (242) are arranged outside the accommodating cavity according to the mode that the moving track of the fixing rod can be limited in the first arc-shaped sliding chute (211) and the second arc-shaped sliding chute (212), the second clamping piece (242) is arranged in the accommodating cavity, wherein,

the second clamping piece (241) is arranged in a containing cavity of the first arc-shaped sliding groove (211), the first clamping piece (242) is arranged outside an opening of the containing cavity and close to the lower end (210) of the connecting portion, the diameters of the first clamping piece (241) and the second clamping piece (242) are larger than the opening size of a sliding groove (244) of the first arc-shaped sliding groove (211), and the diameter of the first fixing rod (240) is equal to the opening size of the first arc-shaped sliding groove (211) so that the first fixing rod (240) is limited in the first arc-shaped sliding groove (211) through the first clamping piece (241) and the second clamping piece (242).

2. The nursing device as claimed in claim 1, wherein the connecting portion (200) comprises an upper end and a lower end, the upper end (220) of the connecting portion is provided with a notch for receiving the leg fixing portion (300), the notch is provided with an arc-shaped slide rail (230) in a manner of limiting the rotation track of the fixing portion (300), the concave portion of the arc-shaped slide rail (230) is provided with a guide rail (231) for guiding the fixing portion (300) to move relative to the arc-shaped slide rail (230), and the periphery of the fixing portion (300) is provided with a connecting groove (311) engaged with the guide rail (231) in a manner of being connected with the upper end (220) of the connecting portion and guided by the guide rail (231).

3. The nursing device according to claim 2, wherein the arc-shaped slide rail (230) is provided at both sides thereof with front and rear stoppers (232) capable of restricting the movement of the fixing portion (300) in a direction parallel to the extension direction of the patient's leg, the front and rear stoppers (232) engaging with the outer periphery of the fixing portion (300),

when the fixing portion (300) is disposed in the arc-shaped slide rail (230) through the connecting groove (311), the front and rear stoppers (232) are connected to the fixing portion (300) by a form-fit engagement so as to cancel a force applied to the fixing portion (300) from a non-rotational direction.

4. A treatment device according to claim 3, characterized in that the curved sliding rail (230) is provided with a telescopic rolling limit (233) on the guide rail (231) in such a way that the rotation of the stationary part (300) can be limited,

one side of the connecting groove (311) of the fixing part (300) close to the rolling limit part (233) is provided with a plurality of limit holes (312) matched with the rolling limit part (233) in an extending state.

5. A care device as recited in claim 4,

the first adjustable plug-in unit and the second adjustable plug-in unit are arranged to move along the first arc-shaped sliding groove (211) and the second arc-shaped sliding groove (212) respectively according to the posture of putting two legs which can adapt to different body positions of a patient and the mode of changing the fixed positions of the legs.

6. The care device of claim 5, wherein the first and second jaws (241, 242) are movable relative to the stationary bar (240), the first and second jaws (241, 242) comprising inner and outer connecting bars, respectively,

when the first clamping piece (241) and the second clamping piece (242) move to the maximum distance from each other relative to the fixing rod (240), at least the fixing rod (240) between the first clamping piece (241) and the second clamping piece (242) is a hollow rod, wherein a plurality of sliding grooves (244) are formed in the outer wall of the hollow rod and the central axis of the hollow rod in parallel, at least two mutually crossed internal connecting rods are arranged inside the hollow rod, and the internal connecting rods penetrate through the sliding grooves (244) and are connected with the external clamping pieces in a mode of synchronous movement with the external clamping pieces.

7. The nursing device as set forth in claim 6, characterized in that the hollow fixing rod (240) is provided with a partition plate (243) at the middle portion thereof, and the first inner connecting rod (2412) corresponding to the first jaw (241) is connected to the partition plate (243) at a side thereof adjacent to the first jaw (241) by a first spring (245); a second inner connecting rod (2422) corresponding to the second clamping piece (242) is connected with one side, close to the second clamping piece (242), of the partition plate (243) through a second spring (246); so that the first inner connecting rod (2412) and the second inner connecting rod (2422) can accumulate elastic potential energy which is enough to push the first clamping piece (241) and the second clamping piece (242) towards the direction of increasing distance between each other in the process that the first spring (245) and the second spring (246) move towards each other under the driving of the first outer clamping piece (2411) corresponding to the first clamping piece (241) and the second outer clamping piece (2421) corresponding to the second clamping piece (242).

8. The care device according to claim 7, characterized in that the fixing part (300) comprises an outer ring (310) and an inner ring (320) for defining the leg accommodation space, which are connected by means of a size adjustment device, the inner ring (320) comprising an upper half ring (321) and a lower half ring (322), the sides of the upper half ring (321) and the lower half ring (322) facing away from the center of the ring being connected with the outer ring (310) by means of a size adjustment device, respectively, wherein the upper half ring (321) and the lower half ring (322) are connected by means of a strap (323) in such a way that the size of the leg accommodation space can be adjusted.

9. The care apparatus according to claim 8, characterized in that the lower end (210) of the connecting portion of the adjustable insert is telescopically arranged in such a way that the height of the fixing portion (300) can be changed to adapt to changes in the patient's posture.