CN213099872U - Hemodialysis pjncture needle fixing device - Google Patents

Abstract

A hemodialysis puncture needle fixing device effectively solves the problems that the arm of a patient is not firmly fixed and a puncture needle cannot be fixed; the inflatable air bag comprises a main body in the left and right directions, wherein a semicircular groove which is communicated with the left and right sides and has an upward opening is formed in the main body, placing grooves with upward openings in the left and right directions are formed in the front and back sides of the main body respectively, left and right axial guide rods are connected in the placing grooves in a sliding mode, an inverted U-shaped fixing plate is fixedly connected to the two guide rods, an arc-shaped air bag in the left and right directions is arranged on the inner wall of the fixing plate, an inverted U-shaped clamping cushion is arranged on the lower side of the arc-shaped air bag, a left and right axial inflatable cavity is formed in the; the structure is simple, the operation is convenient, the conception is novel, and the practicability is strong.

Description

Hemodialysis pjncture needle fixing device

Technical Field

The utility model relates to the technical field of hemodialysis auxiliary instruments, in particular to a hemodialysis puncture needle fixing device.

Background

Hemodialysis is the most effective treatment method to chronic renal failure and acute drug poisoning patient, at present, mainly clinically, puncture needle insertion is carried out on patient's upper limbs, when in use, the patient takes the semi-recumbent posture to fix, the position can not be changed at will, and the dialysis time of the patient is more than 4 hours, the arm of the patient is easy to fall off due to involuntary movement in the dialysis process, the needle head is easy to shift and puncture the blood vessel, so that the dialysis puncture needle is separated from the blood vessel or the blood extravasates, the normal hemodialysis is affected, the pain is caused to the patient, other unpredictable results are possibly caused, and the work difficulty is increased to medical staff.

SUMMERY OF THE UTILITY MODEL

To the above situation, in order to compensate for the deficiencies of the prior art, the utility model aims to provide a hemodialysis pjncture needle fixing device, the effectual solution is fixed not jail to patient's arm, and to the unable problem of fixing to the puncture needle.

The technical scheme of its solution is, the utility model discloses a main part of left right direction, link up and opening semicircular groove up about having seted up in the main part, direction and opening standing groove up about the main part has been seted up respectively to both sides around the main part, axial guide bar about sliding connection has in the standing groove, the fixed plate of a fixedly connected with shape of falling U on two guide bars, be equipped with the arc gasbag of direction about on the fixed plate inner wall, arc gasbag downside is equipped with the centre gripping pad of shape of falling U, axial inflation chamber about having seted up on the fixed plate, the coaxial sliding connection of inflation intracavity has the push pedal, it communicates through gas tube and arc gasbag to inflate the chamber left side.

Compared with the prior art, the beneficial effects of the utility model are that: cross the fixed plate that sets up, arc gasbag and centre gripping pad, not only can fix patient's arm, also can be with the effectual fixed of pjncture needle, avoid patient's arm to move in disorder, lead to the pjncture needle to break away from, cause the injury to the patient, T-shaped piece and spacing groove that are equipped with, be convenient for fix the fixed plate in the standing groove with being stable, and the chamber and the push pedal of aerifing that are equipped with, be convenient for aerify to the arc gasbag in, can better fix patient's arm, avoid the pjncture needle to drop, cause the injury to the patient, medical personnel's work burden has been alleviateed simultaneously, this simple structure, high durability and convenient.

Drawings

Fig. 1 is an isometric view of the present invention.

Fig. 2 is a ladder sectioning main perspective view diagram of the utility model.

Fig. 3 is a full-section right perspective view diagram of the utility model.

Fig. 4 is a full-section left-side perspective view diagram of the utility model.

Fig. 5 is an enlarged view of a in fig. 2 according to the present invention.

Fig. 6 is an enlarged view of B in fig. 4 according to the present invention.

Detailed Description

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

By figure 1 to 6, main part 1 including the left and right directions, link up about having seted up in main part 1 and open up semicircular groove 2, both sides have been seted up respectively about main part 1 about and open up standing groove 3, axial guide bar 4 about sliding connection has in standing groove 3, fixed plate 5 of a fixedly connected with inverted U-shaped on two guide bar 4, be equipped with the arc gasbag 6 of direction about on the fixed plate 5 inner wall, 6 downside of arc gasbag is equipped with the centre gripping pad 7 of inverted U-shaped, axial inflation chamber 8 about seted up on fixed plate 5, coaxial sliding connection has push pedal 9 in the inflation chamber 8, inflation chamber 8 left side is through gas tube 10 and arc gasbag 6 intercommunication.

In order to make fixed plate 5 can be stably located standing groove 3, main part 1 on set up rather than correspond side standing groove 3 intercommunication and the spacing groove 11 of left right direction, the sliding chamber 12 of left right direction is seted up respectively to the fixed plate 5 left and right sides, sliding chamber 12 sliding connection has T-shaped piece 13, two T-shaped piece 13 back on the back end run through equal fixed plate 5 and can insert its spacing inslot 11 that corresponds the side.

In order to facilitate the insertion of the T-shaped block 13 into the limiting groove 11, the main body 1 is provided with a connecting cavity 14 which is located at the left of the inflation cavity 8 and is in the left-right axial direction, the connecting cavity 14 is communicated with the inflation cavity 8 through a through hole, and the front side and the rear side of the connecting cavity 14 are respectively communicated with the sliding cavity 12 at the corresponding side through a guide pipe 15.

In order to avoid the gas in the sliding cavity 12 from flowing backwards, a disk 16 is coaxially and slidably connected in the connecting cavity 14, the disk 16 can shield the through hole, a screw 17 is coaxially and rotatably connected to the left side of the disk 16, and the left end of the screw 17 penetrates through the fixing plate 5 and is in threaded connection with the fixing plate 5.

In order to continuously inflate the arc-shaped air bag 6, the left side of the inflation cavity 8 is connected with the outside through an air inlet pipe 18, an air inlet one-way valve 19 with an opening facing the inflation cavity 8 is arranged in the air inlet pipe 18, an air inflation one-way valve 20 with an opening facing the arc-shaped air bag 6 is arranged in the inflation pipe 10, a push rod 21 with the right end penetrating through the fixing plate 5 is coaxially arranged on the right side of the push plate 9, and the push rod 21 is in sliding connection with the fixing plate.

In order to facilitate the exhaust of the arc-shaped air bag 6 and improve the comfort of a patient, the rear side of the arc-shaped air bag 6 is communicated with the outside through an exhaust pipe 22, and a plug 23 is coaxially arranged in the exhaust pipe 22.

When the utility model is used, firstly, the fixing plate 5 is pulled upwards, the fixing plate 5 slides upwards along the placing groove 3 through the guide rod 4, then the upper limb of a patient is placed in the semicircular groove 2, then the fixing plate 5 is pushed downwards, the fixing plate 5 drives the arc-shaped air bag 6 to contact with the upper limb of the patient, simultaneously, the puncture needle is positioned under the clamping pad 7 to position the puncture needle, then the push rod 21 is pushed leftwards, the push rod 21 drives the push plate 9 to slide leftwards along the inflation cavity 8, the push plate 9 extrudes the gas in the inflation cavity 8 to extrude into the connecting cavity 14 through the through hole, the gas in the connecting cavity 14 flows into the sliding cavity 12 through the guide pipe 15, the sliding cavity 12 is inflated to increase the internal pressure intensity, the gas pushes the T-shaped blocks 13 to slide back and back to insert the T-shaped blocks 13 into the limiting groove 11, then the screw rod 17 is rotated clockwise, the screw rod 17 drives, the gas in the sliding cavity 12 is prevented from flowing reversely, the fixing plate 5 is positioned, and the arm of the patient can be fixed;

meanwhile, a part of gas is squeezed into the arc-shaped air bag 6 through the inflation tube 10, and due to the fact that the inflation one-way valve 20 is arranged in the inflation tube 10, gas in the arc-shaped air bag 6 can be effectively prevented from flowing reversely, the push rod 21 is pulled rightwards along with the gas, the push rod 21 drives the push plate 9 to slide rightwards along the inflation cavity 8, the gas inlet one-way valve 19 is enabled to be opened, external gas flows into the connecting cavity 14 through the gas inlet tube 18, the push rod 21 is repeatedly pushed and pulled, the gas in the inflation cavity 8 is squeezed into the arc-shaped air bag 6 through the inflation tube 10, the arc-shaped air bag 6 is inflated and expanded to squeeze the arm of a patient, and meanwhile the arc-shaped air bag 6 drives;

when the puncture needle does not need to be fixed any more, firstly, the plug 23 on the exhaust pipe 22 is pulled out, so that the gas in the arc-shaped air bag 6 is exhausted to the outside through the exhaust pipe 22, the arc-shaped air bag 6 is exhausted and contracted without extruding the arm of a patient, the arc-shaped air bag 6 drives the clamping pad 7 to be separated from the puncture needle, then the screw rod 17 is rotated anticlockwise, the screw rod 17 drives the disc 16 to slide leftwards along the connecting cavity 14 and not block a through hole, then the push rod 21 is pulled rightwards, the push rod 21 drives the push plate 9 to slide rightwards along the inflation cavity 8, so that the inflation cavity 8 sucks the gas in the sliding cavity 12 through the guide pipe 15 and the through hole, the gas pressure in the sliding cavity 12 is reduced, the T-shaped block 13 is driven to slide relatively, the T-shaped block 13 is not inserted into the limiting.

Compared with the prior art, the beneficial effects of the utility model are that: through the fixed plate that sets up, arc gasbag and centre gripping pad, not only can fix patient's arm, also can be with the effectual fixed of pjncture needle, avoid patient's arm to move in disorder, lead to the pjncture needle to break away from, cause the injury to the patient, T-shaped piece and spacing groove that are equipped with, be convenient for fix the fixed plate in the standing groove with being stable, and the chamber and the push pedal of aerifing that are equipped with, be convenient for aerify to the arc gasbag in, can better fix patient's arm, avoid the pjncture needle to drop, cause the injury to the patient, medical personnel's work burden has been alleviateed simultaneously, this simple structure, high durability and convenient.

Claims (6)

1. A hemodialysis puncture needle fixing device, which comprises a main body (1) in the left and right directions, the novel inflatable bag is characterized in that a left half-round groove (2) which is communicated with a left side and a right side and has an upward opening is formed in a main body (1), a left placing groove (3) which is provided with a left side and a right side and has an upward opening is formed in the front side and the rear side of the main body (1), a left guide rod (4) which is provided with a left side and a right side and has an inward opening is connected with the left side and the right side in a sliding manner in the placing groove (3), a fixed plate (5) which is provided with an inward opening and has a reverse U shape is fixedly connected with the two guide rods (4), an arc-shaped air bag (6) which is provided with a left side and a right side in the fixed plate (5), a push plate (9) is coaxially connected with the inward opening.

2. The hemodialysis puncture needle fixing device according to claim 1, wherein the main body (1) is provided with a left and right direction limiting groove (11) communicated with the corresponding side placing groove (3), the left and right sides of the fixing plate (5) are respectively provided with a left and right direction sliding cavity (12), the sliding cavity (12) is internally and slidably connected with a T-shaped block (13), and the opposite ends of the two T-shaped blocks (13) penetrate through the fixing plate (5) and can be inserted into the corresponding side limiting groove (11).

3. A fixing device for a hemodialysis puncture needle according to claim 1, wherein the main body (1) is provided with a connection chamber (14) which is located at the left side of the inflation chamber (8) and is in the left-right axial direction, the connection chamber (14) is communicated with the inflation chamber (8) through a through hole, and the front side and the rear side of the connection chamber (14) are respectively communicated with the sliding chamber (12) at the corresponding side through a catheter (15).

4. A hemodialysis needle fixing device according to claim 3, wherein a disk (16) is coaxially and slidably connected to the connecting chamber (14), the disk (16) can block the through hole, a screw (17) is coaxially and rotatably connected to the left side of the disk (16), and the left end of the screw (17) penetrates the fixing plate (5) and is in threaded connection with the fixing plate (5).

5. A fixing device for a hemodialysis puncture needle according to claim 1, wherein the left side of the inflation cavity (8) is connected with the outside through an air inlet pipe (18), an air inlet check valve (19) with an opening facing the inflation cavity (8) is arranged in the air inlet pipe (18), an inflation check valve (20) with an opening facing the arc-shaped air bag (6) is arranged in the inflation pipe (10), a push rod (21) with the right end penetrating through the fixing plate (5) is coaxially arranged on the right side of the push plate (9), and the push rod (21) is slidably connected with the fixing plate (5).

6. A hemodialysis needle fixing device according to claim 1, wherein the rear side of the arc-shaped air bag (6) is communicated with the outside through an exhaust pipe (22), and a plug (23) is coaxially arranged in the exhaust pipe (22).

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