CN215083018U

CN215083018U - Hemodialysis upper limbs stabilize bracket

Info

Publication number: CN215083018U
Application number: CN202021891375.9U
Authority: CN
Inventors: 高明权
Original assignee: University of Electronic Science and Technology of China
Current assignee: University of Electronic Science and Technology of China
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-12-10
Anticipated expiration: 2030-09-02

Abstract

A hemodialysis upper limb stabilizing bracket relates to the field of devices on a patient supporting surface and comprises a base, wherein a lead screw is rotatably connected to the base, a nut is connected to the lead screw, an extending part is convexly arranged on the nut, the extending part is vertically and slidably connected with a sliding block, a placing rack is hinged to the base, a groove is formed in the placing rack, and a sliding groove is formed in the bottom surface of the placing rack; the side of base is protruding still to be equipped with dull and stereotypedly, and the one end that is close to the slider on the dull and stereotyped articulates there is the lifter plate, the lower extreme and the lifter plate sliding contact all the time of slider, and the dull and stereotyped one end of not being connected with the lifter plate is equipped with the fine setting bolt of jacking lifter plate. The utility model discloses a reciprocating cycle lifting patient's arm action of putting down again plays the effect that utilizes external force activity arm, and the arm can not be crooked by the recess restriction when the activity simultaneously, has avoided the adhesive tape to collapse the condition that the syringe needle drops.

Description

Hemodialysis upper limbs stabilize bracket

Technical Field

The utility model relates to a device field on the patient bearing surface, especially a hemodialysis upper limbs stabilize bracket.

Background

The main method for treating end-stage renal disease in hemodialysis, in which the excretory function of the kidney is replaced by the dialysis process, cannot be interrupted at will once the treatment is started, and thus the patient needs to undergo arteriovenous fistulization in advance. Before hemodialysis, a blood vessel access needs to be established, and fistulization is to manually establish an access between arteriovenous vessels by using a vascular surgical technique, so that a long-term effective extracorporeal circulation blood vessel access is provided for hemodialysis.

Generally, the forearm and the upper arm are considered as the operating part of the ostomy, a medical worker fixes a catheter on the arm of a patient by using an adhesive plaster during dialysis, and the adhesive plaster is easily removed from the skin of the patient with the internal fistula on the wrist and the arm wrist part when the arm moves, so that the needle head falls off. The length of time of a single dialysis is more than four hours, and the patient can feel acid and numb after continuously and straightly exercising the arms, so that the patient always wants to move one arm.

In order to allow the patient to move his arm slightly during dialysis without the needle falling off, an effective tool is needed to assist the patient in doing so.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide a hemodialysis upper limb stabilizing bracket.

The hemodialysis upper limb stabilizing bracket comprises a base and is characterized in that a lead screw is rotatably connected to the base, a nut is connected to the lead screw, an extending part is convexly arranged on the nut, the extending part is vertically and slidably connected with a sliding block, a placing frame is hinged to the base and located above the lead screw, a groove used for placing an arm of a patient is formed in the upper surface of the placing frame, a sliding groove matched with the sliding block is formed in the bottom surface of the placing frame, and the sliding direction of the sliding block is consistent with the axial direction of the lead screw; the side of base is protruding still to be equipped with the flat board, and the one end that is close to the slider on the flat board articulates there is the lifter plate, and the open end of lifter plate is located same end with the open end of rack, the lower extreme and the lifter plate sliding contact all the time of slider, the flat board is not equipped with the fine setting bolt of jacking lifter plate with the one end that the lifter plate is connected.

Preferably, a hand-holding device is arranged at one end of the placing frame, which is far away from the hinge point, and the hand-holding device comprises a worm with a handle and a half-worm wheel which are connected in a meshed manner; an arc groove is formed in the groove of the placing frame, the half worm wheel is connected with the arc groove in a sliding mode, a worm is fixedly arranged in the half worm wheel, and the worm is obliquely inserted into the placing frame.

Preferably, the two sides of the half worm wheel are both convexly provided with arc edges, and the two sides of the arc groove are both provided with short arc surfaces matched with the arc edges.

Preferably, two ends of the lead screw extend out of the base and are fixedly connected with a knob; or one end of the lead screw extends out of the base and is connected with a driving device.

Preferably, a soft cushion is fixedly paved in the groove.

Preferably, the sliding block comprises a vertical connecting shaft and a sliding part positioned at the upper end of the connecting shaft, the sliding part is connected with the sliding groove in a sliding manner, and the connecting shaft is connected with the extending part in a vertical sliding manner; the lower end of the connecting shaft is a hemispherical surface, the lifting plate is provided with a long groove, the length direction of the long groove is consistent with the axial direction of the screw rod, the cross section of the long groove is in an arc shape consistent with the curvature of the hemispherical surface, and the hemispherical surface is in sliding connection with the long groove.

The utility model has the advantages that:

1. the screw nut, the sliding block and the lifting plate are combined, so that the action of lifting the arm of the patient in a reciprocating cycle and then putting down the arm is realized, the action of utilizing external force to move the arm is realized, meanwhile, the arm is limited by the groove during movement and cannot be bent, and the condition that the needle head is broken off by the adhesive tape is avoided;

2. the slope of the lifting plate is adjusted by utilizing the fine adjustment bolt so as to adapt to different requirements of different patients;

3. the hand-held device has good fixed restriction to the patient that the internal fistula was seted up to the wrist portion, and half worm wheel can be dismantled to the patient that the wrist can move about, and the usage is extensive.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the placing frame in a horizontal state;

fig. 3 is a schematic view of the rack in a raised state;

fig. 4 is a side view of the present invention;

FIG. 5 is a schematic structural view of the base, nut and slide block;

fig. 6 is a schematic structural view of the placing rack;

figure 7 is a side view of the rack;

FIG. 8 is a schematic view of a hand-held device;

FIG. 9 is a schematic structural view of a slider;

fig. 10 is a schematic structural view of the lifting plate.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in figures 1-10, a hemodialysis upper limb stabilization bracket comprises a base 1, and is characterized in that a lead screw 2 is rotatably connected to the base 1, a nut 3 is connected to the lead screw 2, an extension portion 31 is convexly arranged on the nut 3, the extension portion 31 is vertically and slidably connected with a slider 4, a placing frame 5 is further hinged to the base 1, the placing frame 5 is positioned above the lead screw 2, an upper hinge portion 55 is fixedly arranged on the lower surface of the placing frame 5, a lower hinge portion 13 matched with the upper hinge portion 55 is arranged at one end of the base 1, so that the placing frame 5 is hinged to the base 1, a groove 51 for placing an arm of a patient is formed in the upper surface of the placing frame 5, the specific shape of the groove 51 is not limited, but the groove 51 is in accordance with the appearance characteristics of the arm of a human body, the edge of the groove 51 is smoothly rounded, and a sliding groove 54 matched with the slider 4 is formed in the bottom surface of the placing frame 5, the sliding direction of the sliding block 4 is consistent with the axial direction of the lead screw 2, the movement of the sliding block 4 is limited by the nut 3, the nut 3 is also limited by the sliding groove 54, the nut 3 can only move but can not rotate when the lead screw 2 rotates, the sliding block 4 and the sliding groove 54 are not limited to be arranged on the same side of the groove 51, and the sliding block 4 and the sliding groove 54 are conveniently in sliding connection; the side of base 1 is protruding still to be equipped with dull and stereotyped 11, and the one end that is close to slider 4 on dull and stereotyped 11 articulates there is lifter plate 6, and the open end of lifter plate 6 is located same end with the open end of rack 5, the lower extreme of slider 4 and lifter plate 6 sliding contact all the time, dull and stereotyped 11 one end not connected with lifter plate 6 is equipped with the fine setting bolt 7 of jacking lifter plate 6. The fine adjustment bolt 7 penetrates through the flat plate 11 from bottom to top and is in threaded connection with the flat plate 11, the fine adjustment bolt 7 is rotated, the upper end of the fine adjustment bolt 7 jacks up the open end of the lifting plate 6, the nut 3 drives the sliding block 4 to walk on the lifting plate 6, the sliding block 4 jacks up the open end of the placing frame 5 gradually along with the rising of the gradient of the lifting plate 6, the sliding block 4 descends when the screw rod 2 rotates reversely, and the open end of the placing frame 5 descends and resets so as to circulate; the placing frame 5 should be kept horizontal when being reset, and is not limited to the base 1 being provided with the receiving block 12 to receive the open end of the placing frame 5.

A hand-holding device 8 is arranged at one end of the placing rack 5, which is far away from the hinged point, the hand-holding device 8 comprises a worm 82 with a handle and a half-worm wheel 81 which are connected in a meshed mode, and the half-worm wheel 81 is a worm wheel with half of a full-circle worm wheel removed along a certain diameter; an arc groove 52 is formed in a groove 51 of the placing frame 5, the half worm wheel 81 is connected with the arc groove 52 in a sliding mode, a worm 82 is fixedly arranged in the half worm wheel 81, and the worm 82 is obliquely inserted into the placing frame 5. The hand-holding device 8 is used for enabling a patient to hold the holding rod 83 to limit the wrist of the patient to move greatly, the smooth section of the worm 82 is rotatably connected with the placing frame 5, the thread section of the worm 82 is meshed with the half-worm gear 81, and the patient can utilize the handle to rotate the worm 82 and further rotate the worm 82 on the half-worm gear 81 to adjust the orientation angle of the palm, so that the wrist of the patient is placed more comfortably.

Arc edges 84 are convexly arranged on two sides of the half worm wheel 81, and short arc surfaces 53 matched with the arc edges 84 are arranged on two sides of the arc groove 52. Through arc limit 84 and short cambered surface 53 sliding connection realization during the slip between half worm wheel 81 and the arc groove 52, because half worm wheel 81 can't set up the center pin, so be connected with whole rack 5 through the slip form, short cambered surface 53 is seted up at the upper surface of arc groove 52, and half worm wheel 81 is detachable like this, and the patient that the internal fistula was not seted up at wrist portion can not use hand-held device 8.

Two ends of the lead screw 2 extend out of the base 1 and are fixedly connected with a knob 21; or one end of the screw rod 2 extends out of the base 1 and is connected with a driving device. The patient feels the arm stiffness in the dialysis process and can swing the arm to move by twisting the knob 21; the excessive moisture in the blood of some patients can cause symptoms of sweating and palpitation, the lead screw 2 cannot be controlled to rotate conveniently, the hemodialysis room needs to keep a quiet and clean environment, and the family members enter the treatment area to increase the infection chances of the patients, so that the patients do not accompany the dialysis, the drive device drives the lead screw 2 to reciprocate, the labor of the patients can be saved, and the drive device is not limited to a motor or a belt wheel.

A soft cushion is fixedly paved in the groove 51. The soft cushion increases the comfort of the patient, and particularly does not cause the exposed arms of the patient to feel too cold in the cold season.

The sliding block 4 comprises a vertical connecting shaft 42 and a sliding part 41 positioned at the upper end of the connecting shaft 42, the sliding part 41 is connected with the sliding groove 54 in a sliding manner, and the connecting shaft 42 is connected with the extending part 31 in a vertical sliding manner; the lower end of the connecting shaft 42 is a hemispherical surface, the lifting plate 6 is provided with a long groove 71, the long direction of the long groove 71 is consistent with the axial direction of the screw rod 2, the cross section of the long groove 71 is in an arc shape with the same curvature as the hemispherical surface, and the hemispherical surface is in sliding connection with the long groove 71. When the lifting plate 6 is lifted, an inclination angle is generated between the lifting plate 6 and the connecting shaft 42, so that the lower end of the connecting shaft 42 is set to be a hemispherical surface, namely, the connecting shaft 42 is in electrical contact with the lifting plate 6, the connecting shaft 42 is prevented from being clamped in the sliding process due to the fact that one end of the lifting plate 6 is lifted, and similarly, the connecting surface between the sliding part 41 and the sliding groove 54 is required to be in fillet transition; in addition, a gap is left between the sliding part 41 and the sliding groove 54 to allow the sliding part 41 to move freely in the sliding groove 54.

The utility model discloses when using, realize rotating fine setting bolt 7 and adjust lifter plate 6 to suitable slope, the patient sets up the dialysis back, be close to the patient body with pin joint one end, the arm of patient is put into recess 51, hold holding rod 83, rotate the angle of worm 82 and adjust the worm 82 to comfortable position, when the patient feels the arm acid and numb and need move about, manual rotation knob 21 or utilize drive arrangement to drive lead screw 2 and rotate, nut 3 moves towards holding device 8 one end when lead screw 2 rotates, electronic slider 4 slides on spout 54 and lifter plate 6, the slope jacking rack 5 of the gorgeous lifter plate 6 of slider 4, patient's hand is followed rack 5 and is raised at this moment, nut 3 drives slider 4 and gets back to pin joint one end when lead screw 2 reverses, rack 5 descends gradually and puts the patient's arm flat; the four limbs of the patient are limited by the holding rod 83, so that the patient cannot make a fist or rotate unconsciously, the needle head at the wrist is protected from falling off, the arm and the wrist cannot be bent freely in the groove 51, and the limb and the wrist are not limited to the arrangement of the binding belt on the groove 51 to prevent the arm of the patient from being pulled out in the prior art.

It should be noted that the base 1 should not be fixed, the fixed base 1 can limit the position where the arm of the patient is placed, and the fine tuning bolt 7 needs to be exposed when the base 1 is placed; the bracket should be placed so as to keep the patient's arm straight with the shoulder after being placed in the recess 51.

The utility model has the advantages that:

The above-mentioned embodiments are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design concept of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. The upper limb stabilizing bracket for hemodialysis comprises a base (1) and is characterized in that a lead screw (2) is rotatably connected to the base (1), a nut (3) is connected to the lead screw (2), an extending part (31) is convexly arranged on the nut (3), the extending part (31) is vertically and slidably connected with a sliding block (4), a placing frame (5) is hinged to the base (1), the placing frame (5) is located above the lead screw (2), a groove (51) for placing an arm of a patient is formed in the upper surface of the placing frame (5), a sliding groove (54) matched with the sliding block (4) is formed in the bottom surface of the placing frame (5), and the sliding direction of the sliding block (4) is consistent with the axial direction of the lead screw (2); the side of base (1) is protruding still to be equipped with dull and stereotyped (11), and the one end that is close to slider (4) on dull and stereotyped (11) articulates there is lifter plate (6), and the open end of lifter plate (6) is located same end with the open end of rack (5), the lower extreme and the lifter plate (6) sliding contact all the time of slider (4), dull and stereotyped (11) one end that is not connected with lifter plate (6) is equipped with fine setting bolt (7) of jacking lifter plate (6).

2. The upper limb stabilizing bracket for hemodialysis as recited in claim 1, wherein a hand-held device (8) is provided at an end of the placing rack (5) away from the hinge point, the hand-held device (8) comprises a worm (82) with a handle and a half worm wheel (81) which are connected in a meshing manner; arc groove (52) are arranged in groove (51) of placing frame (5), half worm wheel (81) and arc groove (52) are connected in a sliding mode, worm (82) are arranged in half worm wheel (81) in a fixed mode, and worm (82) are inserted into placing frame (5) in an inclined mode.

3. The upper limb stabilizing bracket for hemodialysis as recited in claim 2, wherein the half worm wheel (81) is convexly provided with an arc-shaped edge (84) at both sides, and the arc groove (52) is provided with a short arc-shaped surface (53) at both sides matching with the arc-shaped edge (84).

4. The hemodialysis upper limb stabilization bracket according to claim 1, wherein both ends of the lead screw (2) extend out of the base (1) and are fixedly connected with a knob (21); or one end of the screw rod (2) extends out of the base (1) and is connected with a driving device.

5. Hemodialysis upper limb stabilization bracket according to claim 1 or 2, wherein a soft pad is fixedly laid inside the groove (51).

6. The upper limb stabilization bracket for hemodialysis according to claim 1, wherein the slider (4) comprises a vertical connecting shaft (42) and a sliding part (41) positioned at the upper end of the connecting shaft (42), the sliding part (41) is connected with the sliding groove (54) in a sliding manner, and the connecting shaft (42) is connected with the extending part (31) in a sliding manner up and down; the lower end of the connecting shaft (42) is a hemispherical surface, the lifting plate (6) is provided with a long groove (71), the long direction of the long groove (71) is consistent with the axial direction of the screw rod (2), the cross section of the long groove (71) is in an arc shape with the same curvature as the hemispherical surface, and the hemispherical surface is in sliding connection with the long groove (71).