Emergency portable auxiliary hemodialysis equipment

Abstract

The invention relates to the technical field of medical equipment, in particular to emergency portable auxiliary hemodialysis equipment which comprises a dialyzer, a push rod is arranged on the upper portion of the dialyzer, a containing box is installed on the lower portion of the dialyzer, a base plate is slidably arranged in the containing box, universal wheels are symmetrically installed on the lower portion of the containing box and the lower portion of the base plate, and a plurality of guide columns are arranged in the containing box. A base plate is arranged between the guide columns in a sliding mode, and a pulling frame is arranged in the base plate in a sliding mode. According to the invention, the nested design of the accommodating box and the base plate is matched with the lifting linkage of the guide column, the linkage plate and the motor-driven bidirectional screw rod, so that the movable plate, the folding plate and the supporting system of the dialyzer are completely accommodated and quickly unfolded, the equipment volume is greatly reduced, the transportation and the storage in a narrow space are facilitated, and the quick response requirement of an emergency scene is met; after the folding plate is unfolded, a backrest curved surface is formed, the extension plate is pulled out to increase the supporting area, the bevel structure of the conical abutting piece is matched with the first spring, it is ensured that the base plate cannot slide out accidentally during non-manual operation, and the equipment safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an emergency portable auxiliary hemodialysis device. Background Art

[0002] Hemodialysis is the core treatment method for maintaining the life of patients with end-stage renal disease. It simulates the function of the kidneys through an extracorporeal circulation system to remove metabolic wastes (such as urea nitrogen and creatinine), excess water, and electrolyte imbalance substances from the blood.

[0003] After retrieval, Chinese Patent CN119015526B discloses a portable and movable hemodialysis machine, aiming to solve the problem that the existing conventional hemodialysis machines are not sufficient to meet the further convenient operation requirements when switching between different supine or sitting positions for dialysis, or changing the dialysis position at different locations. The above patent solves the problems of convenience and stability in position switching and position adaptation by adopting a telescopic turntable, a movable arm support plate, and a suction cup adsorption linkage.

[0004] However, the above patent has a large volume in the storage state, which is not convenient for transportation and storage in a narrow space. In addition, when it is necessary to quickly deploy the device for hemodialysis, the existing devices often have complex operations and cannot meet the rapid response requirements in emergency scenarios. These problems not only increase the workload of medical staff, but also may affect the treatment effect of hemodialysis and even pose a threat to the life safety of patients.

[0005] Therefore, an emergency portable auxiliary hemodialysis device is specifically designed to solve the above technical problems. Summary of the Invention

[0006] In order to overcome the above-mentioned disadvantages of the existing technology, the purpose of the present invention is to provide an emergency portable auxiliary hemodialysis device.

[0007] The technical solution of the present invention is: an emergency portable auxiliary hemodialysis device, including a dialysis instrument. A push rod is provided on the upper part of the dialysis instrument, and a receiving box is installed on the lower part. A substrate is slidably arranged inside the receiving box. Universal wheels are symmetrically installed on both the lower part of the receiving box and the substrate. A plurality of guide columns are provided inside the receiving box, and the substrate is slidably arranged between the guide columns. A pulling frame is slidably arranged inside the substrate. Conical parts are provided on both sides of the lower part of the pulling frame. Conical abutting parts are slidably penetrated through both sides of the lower part inside the substrate. The conical parts are in inclined contact with the conical abutting parts. The end of the conical abutting part is snapped into the groove at the lower part of the receiving box to lock. Spring I is provided at the sliding places of the pulling frame and the conical abutting part with the substrate. Linkage frames are hinged on both sides of the upper part of the substrate. The upper part of the substrate is hinged with upper and lower groups of linkage plates through the linkage frames. The lower linkage plate is slidably limited with the substrate. A driving part for driving the two groups of linkage plates to perform translational movement in opposite directions is provided on the upper part of the substrate. An activity plate is arranged between the two upper linkage plates. A cavity is opened inside the activity plate. A folding plate is hinged on the upper part of the activity plate.

[0008] As an improvement to the above solution, the driving part includes a bidirectional lead screw, a motor, a driving worm 1, and a mating worm gear 1. The middle part of the base plate is threadedly penetrated by the bidirectional lead screw, and the lower linkage plate is threadedly connected to the bidirectional lead screw, and the two are in threaded cooperation. The motor is installed on the upper side of the base plate, and the output shaft of the motor is connected to the bidirectional lead screw. The motor drives the bidirectional lead screw to drive the linkage plate to perform translational movement in opposite directions. A driving worm 1 is installed on the side of the movable plate, and the end of the hinge shaft of the folding plate protrudes outwards, and a mating worm gear 1 that rotates and meshes with the driving worm 1 is provided on the protruding part.

[0009] As an improvement to the above solution, the folding plate is composed of two stacked and hinged plates, and forms a backrest structure suitable for the human back after being unfolded.

[0010] As an improvement to the above solution, it further includes an extension plate and elastic beads. The extension plate is slidably arranged in the cavity of the movable plate, and elastic beads are arranged at both sides of the end of the extension plate and the sliding part of the movable plate. And two symmetrically arranged fitting grooves matching the elastic beads are opened on both sides inside the movable plate, and the two fitting grooves are far away from each other.

[0011] As an improvement to the above solution, it further includes magnetic blocks. Symmetric magnetic blocks are arranged in one of the plates of the folding plate, so that the other plate is attached to its surface by magnetic action to form a closed state.

[0012] As an improvement to the above solution, it further includes a bracket, a rotating shaft, a support arm, a locking member, a placement rack, a spring 2, a limiting block, and a torsion spring 1. The bracket is slidably arranged at the lower part inside the dialysis instrument, and one end of the bracket passes through the dialysis instrument. A rotating shaft is rotatably arranged on the passing part. The support arm is rotatably and slidably sleeved outside the rotating shaft. The locking member is threadedly penetrated through the side part of the support arm, and the end of the locking member abuts against the outside of the rotating shaft to adjust the height of the support arm. The placement rack is rotatably and slidably arranged inside the inner side of the support arm. The upper part of the placement rack is in the shape of a semi-circular curved plate suitable for the human arm, and the lower part of the placement rack is in the shape of a rectangular frame with an open side and a hollow interior. Spring 2 is arranged at the sliding connection of the bracket and the placement rack with the corresponding dialysis instrument or the rotating shaft. The limiting block is slidably arranged at the lower side of the dialysis instrument close to the support arm, and the limiting block abuts against the rectangular structure at the lower part of the placement rack to prevent accidental touch. And the other side of the lower part of the bracket abuts against the side part of the base plate according to the spring 2. After the base plate is pulled out into the storage box, the bracket is driven by the shortening deformation of the spring 1 to drive the bracket and all the components on it to slide out a certain distance to approach the folding plate. A torsion spring 1 is arranged at the rotating connection of the lower part of the placement rack and the support arm.

[0013] As an improvement of the above scheme, it also includes a stabilizing plate, a driving worm gear 2 and a matching worm gear 2. The lower side of the dialyzer is rotatably provided with a stabilizing plate for additional ground support, and the other lower side of the dialyzer is installed with a driving worm gear 2. The end of the rotating shaft of the dialyzer extends toward the side of the driving worm gear 2, and the extending part is provided with a matching worm gear 2, which is rotatably engaged with the connected driving worm gear 2.

[0014] As an improvement of the above scheme, it also includes a contact plate, an auxiliary plate and two torsion springs. A plurality of contact plates are symmetrically hinged at the lower part of the containing box, and an auxiliary plate is symmetrically hinged at the lower part of the base plate to form a support. Two torsion springs are provided at the hinges between each contact plate and each auxiliary plate and the corresponding containing box or base plate. In addition, the auxiliary plate and the two corresponding linkage plates at the upper part are in rotational contact. When the linkage plates slide inward at the same time, the auxiliary plate rotates due to the loosening and deformation action of the two torsion springs, and each contact plate and the lower part of each auxiliary plate are in contact with the ground.

[0015] As an improvement of the above scheme, it also includes a guide rod and a smoothing frame. The guide rod is arranged at the lower side of the receiving box, and the smoothing frame is slidably arranged outside the guide rod, and the smoothing frame is in sliding contact with each contact plate.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The nested design of the containing box and the base plate of the present invention, in conjunction with the translational linkage of the guide column, the linkage plate and the motor-driven bidirectional screw rod, realizes the complete storage and rapid deployment of the dialyzer movable plate, the folding plate and the support system, greatly reduces the volume of the equipment, is convenient for transportation and storage in a small space, and meets the needs of rapid response in emergency scenarios; after the folding plate is unfolded, a back-supporting curved surface is formed, and the extension plate is pulled out to increase the support area. The inclined surface structure of the conical abutment cooperates with the spring to ensure that the base plate cannot accidentally slide out during non-human operation, thereby improving the safety of the equipment.

[0017] 2. The present invention achieves stepless adjustment of the folding plate angle by driving worm gear 1 and engaging with worm gear 1, drives worm gear 2 and engages with worm gear 2 to control the inclination angle of the stabilizing plate, and utilizes the self-locking characteristics of the worm gear to fix the angle to avoid displacement during dialysis. After the folding plate is unfolded, it is combined with the multi-point support structure of the stabilizing plate with adjustable angle, the contact floor, and the auxiliary plate to adapt to the needs of supine or sitting dialysis, and to adapt to uneven ground to ensure operational stability and patient comfort. The limiting block is against the rectangular frame of the placement rack in the storage state to prevent the support arm from accidentally unfolding due to collision during transportation, thereby improving the safety of the equipment.

[0018] 3. The present invention closes the folding plate and the magnetic block by adsorption, which is tightly fitted and easy to operate; the extension plate is locked by embedding the elastic card beads into the movable plate fitting groove, simplifying the expansion process.

[0019] 4. In the present invention, the flattening frame slides along the guide rod to forcibly flatten the contact surface of the contact floor, ensuring uniform force application; the self-locking characteristics of the driving worm one and two and the mating worm wheels one and two are used to fix the angles of the folding plate and the stabilizing plate without deviation, ensuring the stability of the device during dialysis.

[0020] 5. In the present invention, the height of the support arm can be fixed by screwing the locking member; after pushing the limiting block to release the locking of the placement rack, the torsion spring one automatically drives it to fit against the arm; driving the rotation of the worm one realizes stepless adjustment of the backrest angle, and no additional tools are required during the whole operation process, reducing the burden on medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic assembly structure diagram of the first form of the present invention.

[0022] Figure 2 It is a three-dimensional structure diagram of the second form of the present invention.

[0023] Figure 3 It is a three-dimensional structure diagram of the dialysis instrument, push rod and accommodation box of the present invention.

[0024] Figure 4 It is a sectional structure diagram of components such as the accommodation box, base plate and movable plate of the present invention.

[0025] Figure 5 It is a sectional structure diagram of components such as the base plate, pulling frame and conical abutting member of the present invention.

[0026] Figure 6 It is a sectional structure diagram of components such as the base plate, connecting rod frame and linkage plate of the present invention.

[0027] Figure 7 It is a three-dimensional structure diagram of components such as the base plate, movable plate and folding plate of the present invention.

[0028] Figure 8 It is a sectional structure diagram of components such as the dialysis instrument, bracket and base plate of the present invention.

[0029] Figure 9 It is a three-dimensional structure diagram of components such as the placement rack, support arm and spring one of the present invention.

[0030] Figure 10 It is a sectional structure diagram of components such as the placement rack, support arm and spring one of the present invention.

[0031] Figure 11 It is a three-dimensional structure diagram of the rear view angle of the present invention.

[0032] Figure 12 It is a sectional structure diagram of components such as the movable plate, extension plate and elastic bead of the present invention.

[0033] Figure 13 This is a schematic cross-sectional structure diagram of the folding plate and magnetic block of the present invention.

[0034] Figure 14 This is a schematic cross-sectional structure diagram of components such as the accommodation box, universal wheels, and floor contact plate of the present invention.

[0035] Figure 15 This is a schematic cross-sectional structure diagram of components such as the substrate, conical abutting member, and auxiliary plate of the present invention.

[0036] Figure 16 This is a schematic cross-sectional structure diagram of components such as the guide rod, smoothing frame, and floor contact plate of the present invention.

[0037] Figure 17 This is a schematic cross-sectional structure diagram of components such as the substrate, bidirectional lead screw, and linkage plate of the present invention.

[0038] Names of the reference numerals in the figure: 1 - dialysis instrument, 2 - push rod, 3 - accommodation box, 30 - universal wheel, 300 - guide post, 31 - substrate, 32 - pulling frame, 33 - conical abutting member, 34 - first spring, 35 - link frame, 36 - linkage plate, 37 - bidirectional lead screw, 38 - motor, 39 - movable plate, 390 - extension plate, 391 - folding plate, 392 - first driving worm, 393 - first mating worm wheel, 3901 - elastic clamping bead, 3911 - magnetic block, 4 - bracket, 41 - rotating shaft, 42 - support arm, 421 - locking member, 43 - placement rack, 44 - second spring, 45 - limiting block, 46 - first torsion spring, 5 - stabilizing plate, 51 - second driving worm, 52 - second mating worm wheel, 6 - floor contact plate, 61 - auxiliary plate, 62 - guide rod, 63 - smoothing frame, 64 - second torsion spring. Detailed implementation manners

[0039] The following further illustrates the technical solution in combination with specific embodiments. It should be noted that: The words indicating directions such as up, down, left, and right in this article are only in terms of the positions of the shown structures in the corresponding drawings. The serial numbers assigned to the components in this article itself, for example: first, second, etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And as used in this application: connection, coupling, unless otherwise specified, both include direct and indirect connection (coupling).

[0040] Embodiment: An emergency portable auxiliary hemodialysis device, as Figures 1 - 17As shown in the figure, it includes a dialysis instrument 1, a push rod 2 and a storage box 3. The dialysis instrument 1, as the core dialysis function module, is internally provided with a blood pump, a dialysis fluid circulation system, etc. On both sides of the upper part of the dialysis instrument 1, there are curved push rods 2. The push rods 2 are structures for device movement and operator force application. Anti-slip patterns are provided on the outside of the push rods 2. The curved design is convenient for grasping, and the anti-slip patterns increase the operation stability. The lower part of the dialysis instrument 1 is installed with a storage box 3 with an open side through bolts. On both sides of the lower part of the storage box 3, a set of universal wheels 30 are symmetrically installed. Guide posts 300 are provided on both sides inside the storage box 3. A base plate 31 is slidably arranged between the two guide posts 300. On both sides of the lower part of the base plate 31, another set of universal wheels 30 are symmetrically installed. A pulling frame 32 is slidably arranged inside the base plate 31. Conical parts are provided on both sides of the pulling frame 32. Conical abutting parts 33 are slidably penetrated through both sides of the lower part inside the base plate 31. The ends of the conical abutting parts 33 are stuck inside the lower part of the storage box 3. When the pulling frame 32 is pulled outwards, the conical parts are in contact with the inclined surfaces of the conical abutting parts 33, causing the conical abutting parts 33 to retract and disengage from the storage box 3, and then the base plate 31 can slide and expand. Springs 34 are provided at the sliding joints of the pulling frame 32 and the conical abutting parts 33 with the base plate 31. Linkage frames 35 are hinged on both sides of the upper part of the base plate 31. A linkage plate 36 is connected between the upper and lower hinge shafts of the two linkage frames 35. The lower linkage plate 36 is slidably connected to the base plate 31. A driving part for driving the two linkage plates 36 to move in opposite directions is provided in the middle of the upper part of the base plate 31. An activity plate 39 is arranged between the two upper linkage plates 36. The activity plate 39 is a seat cushion component. A cavity is provided inside the activity plate 39. A folding plate 391 is hinged on the upper part of the activity plate 39. The linkage frames 35 and the linkage plate 36 are transmission mechanisms for lifting the activity plate 39 and the folding plate 391. The folding plate 391 is composed of two stacked and hinged plates, and forms a backrest structure suitable for the human back after being unfolded.

[0041] As Figure 2 , Figure 6 , Figure 7 and Figure 17 shown, the driving part includes a bidirectional lead screw 37, a motor 38, a driving worm 392 and a mating worm wheel 393. The bidirectional lead screw 37 is threadedly penetrated through the middle of the upper part of the base plate 31. The lower linkage plate 36 is threadedly connected to the bidirectional lead screw 37l, and the two are in threaded cooperation. A motor 38 is installed on the upper side part of the base plate 31. The output shaft of the motor 38 is connected to the bidirectional lead screw 37. The motor 38 drives the bidirectional lead screw 37 to drive the linkage plate 36 to move in opposite directions, and then drives the activity plate 39 to adjust the height. A driving worm 392 is installed on the side part of the activity plate 39. The end of the hinge shaft of the folding plate 391 protrudes outwards, and a mating worm wheel 393 that rotates and meshes with the driving worm 392 is provided on this protruding part.

[0042] As Figure 12 and Figure 14As shown, it further includes an extension plate 390 and elastic beads 3901. An extension plate 390 is slidably disposed in the cavity of the movable plate 39 to extend the length of the leg support. Elastic beads 3901 are provided at both sides of the end of the extension plate 390 at the sliding part with the movable plate 39. On both sides inside the movable plate 39, fitting grooves matching the elastic beads 3901 are symmetrically formed. The two fitting grooves are away from each other. After the extension plate 390 is pulled out, the elastic beads 3901 are embedded in the fitting grooves of the movable plate 39 to lock the extended state.

[0043] As Figure 13 shown, it further includes magnetic blocks 3911. Symmetric magnetic blocks 3911 are provided in one plate of the folding plate 391, so that the other plate is attached to its surface by magnetic adsorption to form a closed state.

[0044] As Figure 1 , Figure 2 and Figures 8 - 10 shown, it further includes a bracket 4, a rotating shaft 41, a support arm 42, a locking member 421, a placement rack 43, a second spring 44, a limiting block 45 and a first torsion spring 46. A bracket 4 is slidably disposed in the lower part inside the dialysis instrument 1. One end of the bracket 4 passes through the dialysis instrument 1. A rotating shaft 41 is rotatably provided on the passing part. A support arm 42 is rotatably and slidably sleeved outside the rotating shaft 41. A locking member 421 is threadedly penetrated through the side part of the support arm 42. The end of the locking member 421 abuts against the outside of the rotating shaft 41 to adjust the height of the support arm 42. A placement rack 43 is rotatably and slidably disposed inside the inner side part of the support arm 42. The bracket 4 and the placement rack 43 form a structure for supporting the patient's arm and placing the pipeline. The upper part of the placement rack 43 is in the shape of a semi-circular arc curved plate suitable for the human arm. The lower part of the placement rack 43 is in the shape of a rectangular frame with an open side and a hollow interior. The sliding of the bracket 4 drives the support arm 42 and the placement rack 43 to adjust the position. The semi-circular arc-shaped placement rack 43 fits the arm, and the rectangular frame houses the pipeline. Springs 44 are provided at the sliding connection parts of the bracket 4 and the placement rack 43 with the corresponding dialysis instrument 1 or the support arm 42. A limiting block 45 is slidably disposed at the lower side part of the dialysis instrument 1 close to the support arm 42. The limiting block 45 abuts against the rectangular structure at the lower part of the placement rack 43 to prevent accidental touch. And the other side at the lower part of the bracket 4 abuts against the side part of the base plate 31 by the pre-tightening force of the second spring 44. After the base plate 31 is pulled out into the accommodation box 3, the bracket 4 releases the elastic potential energy of the first spring 34, driving the bracket 4 and the components thereon to slide out a certain distance to approach the folding plate 391. A first torsion spring 46 is provided at the rotating connection part between the lower part of the placement rack 43 and the support arm 42.

[0045] As Figure 11As shown, it further includes a stabilizing plate 5, a driving worm two 51, and a mating worm wheel two 52. A stabilizing plate 5 for additionally supporting the ground is rotatably arranged at the lower side of the dialysis instrument 1. A driving worm two 51 is installed at the other lower side of the dialysis instrument 1. The end of the rotating shaft of the dialysis instrument 1 extends towards the side of the driving worm two 51, and a mating worm wheel two 52 is arranged on this extending part. The mating worm wheel two 52 is rotationally engaged with the connected driving worm two 51. The driving worm two 51 adjusts the angle of the stabilizing plate 5 through the mating worm wheel two 52 to form a 75° support with the ground.

[0046] As Figure 2 and Figures 14 - 17 As shown, it further includes a touch floor 6, an auxiliary plate 61, and a torsion spring two 64. A plurality of touch floors 6 are symmetrically hinged at the lower part inside the accommodation box 3. Auxiliary plates 61 are symmetrically hinged at the lower part inside the base plate 31. The touch floor 6 and the auxiliary plate 61 are auxiliary support structures at the bottom of the device. After the touch floor 6 and the auxiliary plate 61 are unfolded, the grounding area is increased to improve stability. Torsion springs two 64 are arranged at the hinged parts of each touch floor 6 and each auxiliary plate 61 with the corresponding accommodation box 3 or base plate 31. In addition, the auxiliary plate 61 is in rotational contact with the two corresponding linkage plates 36 above. When the linkage plates 36 slide inwards simultaneously, the auxiliary plate 61 rotates due to the relaxation and deformation of the torsion spring two 64. The lower parts of each touch floor 6 and each auxiliary plate 61 are in contact with the ground.

[0047] As Figure 11 and Figure 16 As shown, it further includes a guide rod 62 and a smoothing frame 63. A guide rod 62 is arranged at the lower side of the accommodation box 3. A smoothing frame 63 is slidably arranged outside the guide rod 62. The smoothing frame 63 is in sliding contact with each touch floor 6. When the smoothing frame 63 is retracted, it corrects the position of the touch floor 6, specifically by sliding the smoothing frame 63 to force the touch floor 6 to return to the retracted posture.

[0048] When in use, the operator pulls the pulling frame 32 on the base plate 31 outward, and the conical part at the end of the pulling frame 32 contacts the inclined surface of the conical resistance piece 33. The conical resistance piece 33 is squeezed by the inclined surface and slides inward to disengage from the lock hole at the bottom of the storage box 3. At the same time, the spring 1 34 is compressed and stores energy. After the base plate 31 is unlocked, it slides outward along the guide column 300 to the maximum stroke and is supported by the conical resistance piece 33 at the second position. At the same time, the universal wheel 30 at the bottom of the base plate 31 contacts the ground to form a double four-point support structure; then the limiting block 45 is pushed to disengage from the rectangular frame structure at the bottom of the placement frame 43, thereby releasing the position restriction and allowing the placement frame 43 to rotate freely under the action of the torsion spring 1 46 to fit the patient's arm; at the same time, During the process of the base plate 31 being pulled outward, the bracket 4 gradually breaks away from the edge of the base plate 31, and the spring 44 pushes the bracket 4 to slide outward along the internal slide rail of the dialyzer 1 to a preset position under the action of the compressed restoring force, so that the support arm 42 and the placement frame 43 enter the deployment state; then, the motor 38 is started to drive the bidirectional screw rod 37 to rotate, and the bidirectional screw rod 37 is threadedly matched with the lower linkage plate 36, driving the linkage plate 36 to move toward each other along the internal slide rail of the base plate 31, and the connecting rod frame 35 changes its angle with the displacement of the linkage plate 36, pushing the upper linkage plate 36 and the movable plate 39 to rise synchronously to the working height; then, the extension plate 390 in the cavity of the movable plate 39 is manually pulled out, and the extension plate 390 is extended. The elastic card bead 3901 at the end of the display plate 390 slides into the outer engaging groove of the movable plate 39 to lock the unfolded state, and the worm 392 is rotated to drive the worm 392 through the worm wheel 393 and the driving worm 392, so as to drive the hinge axis of the folding plate 391 to rotate, and unfold the upper and lower stacked plates to an angle of 120° to form a support surface that conforms to the curve of the human back. The internal magnetic block 3911 of the folding plate 391 is adsorbed and fixed when closed, and the self-locking feature of the driving worm 392 is used to keep the angle stable after unfolding. The locking piece 421 is loosened, and the sliding height of the support arm 42 along the rotating shaft 41 is manually adjusted. The locking piece 421 is tightened to fix the position, and the placement frame 43 automatically fits under the action of the torsion spring 46. The semicircular upper plate adapts to different arm circumferences of the patient's arm, and the lower rectangular frame provides space for pipeline routing; the worm gear 51 is rotated to drive the stabilizing plate 5 to rotate downward until it contacts the ground, and the unfolding angle (75° to the ground) is locked by cooperating with the worm gear 52. When the base plate 31 is unfolded, the auxiliary plates 61 on both sides are separated from the bottom surface of the inward sliding linkage plate 36, and automatically unfold to an eight-shaped inclined state under the action of the torsion spring 64, and form a multi-point ground contact support together with the contact plate 6; in addition, when it is necessary to store and return the components on the base plate 31, the smoothing frame 63 on the sliding guide rod 62 is used to make it slide in contact with each contact plate 6, forcibly correcting the folding plate 391 to return it to its position.

[0049] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. An emergency portable auxiliary hemodialysis device, characterized in that: The dialyzer (1) comprises a push rod (2) on the upper part of the dialyzer (1) and a storage box (3) on the lower part. A base plate (31) is slidably provided inside the storage box (3). Universal wheels (30) are symmetrically provided at the lower parts of the storage box (3) and the base plate (31). A plurality of guide posts (300) are provided inside the storage box (3). A base plate (31) is slidably provided between each guide post (300). A pulling frame (32) is slidably provided inside the base plate (31). Conical portions are provided on both sides of the lower part of the pulling frame (32). Conical abutments (33) are slidably provided on both sides of the lower part of the base plate (31). The conical portions are in contact with the inclined surfaces of the conical abutments (33). The conical abutments (33) are slidably provided inside the lower part of the base plate (31). ) is inserted into the lower groove of the accommodating box (3) to lock it, and a spring (34) is provided at the sliding position of the pulling frame (32) and the conical abutment (33) with the base plate (31). The upper two sides of the base plate (31) are hinged with connecting rod frames (35). The upper part of the base plate (31) is hinged with upper and lower groups of linkage plates (36) through the connecting rod frames (35). The lower linkage plate (36) and the base plate (31) are slidably limited. The upper part of the base plate (31) is provided with a driving part for driving the two groups of linkage plates (36) to perform translational movement toward each other. A movable plate 39 is provided between the two upper linkage plates (36). A cavity is opened inside the movable plate 39, and a folding plate 391 is hinged on the upper part of the movable plate 39.

2. The emergency portable auxiliary hemodialysis device according to claim 1, characterized in that: The driving part comprises a bidirectional screw (37), a motor (38), a driving worm (392) and a matching worm wheel (393). The bidirectional screw (37) is threadedly penetrated on the middle part of the base plate (31). The lower linkage plate (36) is threadedly connected with the bidirectional screw (37), and the two are threadedly matched. The motor (38) is installed on the upper side of the base plate (31). The output shaft of the motor (38) is connected with the bidirectional screw (37). The motor (38) drives the bidirectional screw (37) to drive the two groups of linkage plates (36) to perform translational movement towards each other. The side of the movable plate (39) is installed with a driving worm (392). The end of the hinge shaft of the folding plate (391) protrudes outward, and the protruding part is provided with a matching worm wheel (393) that is rotatably engaged with the driving worm (392).

3. An emergency portable auxiliary hemodialysis device as claimed in claim 2, characterized in that: The folding plate (391) is composed of two upper and lower stacked hinged plates, and forms a backrest structure suitable for the back of a human body after being unfolded.

4. The emergency portable auxiliary hemodialysis device according to claim 3, characterized in that: It also includes an extension plate (390) and an elastic bead (3901), wherein the extension plate (390) is slidably arranged in the cavity of the movable plate (39), elastic bead (3901) is arranged at both sides of the end of the extension plate (390) and at the sliding part of the movable plate (39), and fitting grooves matching the elastic bead (3901) are symmetrically opened on both sides of the inside of the movable plate (39), and the two fitting grooves are far away from each other.

5. The emergency portable auxiliary hemodialysis device according to claim 4, characterized in that: It also includes a magnetic block (3911). A symmetrical magnetic block (3911) is arranged in one of the plates of the folding plate (391), so that the other plate can be attached to its surface by magnetic effect to form a closure.

6. The emergency portable auxiliary hemodialysis device according to claim 5, characterized in that: The device also comprises a support (4), a rotating shaft (41), a support arm (42), a locking member (421), a placement frame (43), a second spring (44), a limiting block (45) and a first torsion spring (46). The support (4) is slidably arranged at the lower inner part of the dialyzer (1). One end of the support (4) passes through the dialyzer (1). The passing part is rotatably arranged with a rotating shaft (41). The support arm (42) is rotatably sleeved on the outer part of the rotating shaft (41). A locking member (421) is threadedly penetrated on the side of the support arm (42). The end of the locking member (421) abuts against the outer part of the rotating shaft (41) to adjust the height of the support arm (42). A placement frame (43) is rotatably and slidably arranged on the inner side of the support arm (42). The upper part of the placement frame (43) is in the shape of a semicircular curved plate suitable for a human arm. The lower part of the placement frame (43) is The support frame (4) is in the shape of a rectangular frame with open sides and a hollow interior. The support frame (4) and the placement frame (43) are provided with springs (44) at the sliding connection between the support frame (4) and the corresponding dialyzer (1) or the rotating shaft (41). A limiting block (45) is provided at the lower side of the dialyzer (1) close to the support arm (42) for sliding. The limiting block (45) abuts against the rectangular structure at the lower part of the placement frame (43) to prevent accidental touch. The other side of the lower part of the support frame (4) abuts against the side of the base plate (31) by means of springs (44). After the base plate (31) is pulled out to the storage box (3), the support frame (4) is shortened and deformed by springs (34), driving the support frame (4) and the components thereon to slide out a certain distance to approach the folding plate (391). A torsion spring (46) is provided at the rotation connection between the lower part of the placement frame (43) and the support arm (42).

7. An emergency portable auxiliary hemodialysis device as claimed in claim 6, characterized in that: The dialyzer (1) also includes a stabilizing plate (5), a second driving worm (51) and a second matching worm wheel (52). The lower side of the dialyzer (1) is rotatably provided with a stabilizing plate (5) for additionally supporting the ground. The other lower side of the dialyzer (1) is provided with a second driving worm (51). The end of the rotating shaft of the dialyzer (1) extends toward the side of the second driving worm (51). The second matching worm wheel (52) is provided on the extended portion. The second matching worm wheel (52) is rotatably meshed with the connected second driving worm (51).

8. An emergency portable auxiliary hemodialysis device as claimed in claim 7, characterized in that: The invention also comprises a contact plate (6), an auxiliary plate (61) and a second torsion spring (64). A plurality of contact plates (6) are symmetrically hinged at the lower inner part of the receiving box (3), and an auxiliary plate (61) is symmetrically hinged at the lower inner part of the base plate (31) to form a support. A second torsion spring (64) is arranged at the hinge between each contact plate (6) and each auxiliary plate (61) and the corresponding receiving box (3) or base plate (31). In addition, the auxiliary plate (61) is in rotational contact with two corresponding linkage plates (36) at the upper part. When the linkage plates (36) slide inward at the same time, the auxiliary plate (61) is rotated by the loosening deformation of the second torsion spring (64), and the lower part of each contact plate (6) and each auxiliary plate (61) is in contact with the ground.

9. An emergency portable auxiliary hemodialysis device as claimed in claim 8, characterized in that: It also includes a guide rod (62) and a smoothing frame (63). The lower side of the accommodating box (3) is provided with a guide rod (62). The outside of the guide rod (62) is slidably provided with a smoothing frame (63). The smoothing frame (63) is in sliding contact with each contact plate (6).

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