CN213047190U - Blood purification puncture needle fixing device - Google Patents

Abstract

The blood purification puncture needle fixing device effectively solves the problems that the puncture needle is inconvenient to be effectively fixed and the fixing force is inconvenient to control; the silica gel base comprises a silica gel base with an upward arc opening in the left-right direction, a clamping block with a downward arc opening in the left-right direction is hinged to the front side of the silica gel base, an inverted trapezoidal placing groove with a downward opening is formed in the clamping block, supporting plates are hinged to the front side and the rear side in the placing groove respectively, a fixed block with a left-right direction and an isosceles trapezoid shape is hinged to the free ends of the two supporting plates, the lower end of the fixed block can extend out of the placing groove, a fixing groove with a left-right through opening and a downward opening is formed in the lower side of the fixed block, an auxiliary block which is located above the fixed block and can move up and down; the structure is simple, the operation is convenient, the conception is novel, and the practicability is strong.

Description

Blood purification puncture needle fixing device

Technical Field

The utility model relates to a nephrology department auxiliary instrument technical field, especially a blood purification pjncture needle fixing device.

Background

Blood purification is the most effective treatment method for patients with chronic renal failure and acute drug poisoning, currently, the upper limb of a patient is mainly used for puncture needle insertion clinically, when the device is used, the patient is fixed in a semi-lying posture and cannot change the body position randomly, the dialysis time of the patient is as long as more than 4 hours, the arm of the patient is not independently moved in the dialysis process, so that a dialysis tube easily falls off, and a puncture needle head is easily displaced, dislocated and punctured to cause the phenomenon that the dialysis puncture needle is separated from a blood vessel or extravasates blood.

SUMMERY OF THE UTILITY MODEL

To the above situation, in order to remedy the deficiencies of the prior art, the utility model aims to provide a blood purification pjncture needle fixing device, the effectual inconvenient effectual fixed to the puncture needle of having solved, and the inconvenient problem of accuse of fixed dynamics.

The technical scheme of its solution is, the utility model discloses a about direction and the ascending silica gel base of nock, silica gel base front side articulates there is about direction and the grip block of nock down, set up in the grip block and fall trapezoidal and opening standing groove down, both sides articulate respectively around in the standing groove has the backup pad, the free end of two backup pads articulates there is about direction and isosceles trapezoid's fixed block, the standing groove can be stretched out to the fixed block lower extreme, link up about the fixed block downside has been seted up and opening fixed slot down, be equipped with the supplementary piece that is located the fixed block top and can reciprocate in the standing groove, both sides are connected through the connecting rod rather than the backup pad that corresponds the side is articulated respectively around the supplementary piece.

Compared with the prior art, the beneficial effects of the utility model are that: grip block that is equipped with, the silica gel base, wedge and spacing groove, can be convenient for with the stable arm of fixing at the patient of fixed block and silica gel base, it is fixed to the puncture needle to be convenient for, the fixed block that is equipped with, the fixed slot, a supporting plate, connecting rod and screw rod, it is fixed not only to be convenient for make the fixed block to the puncture needle, also be convenient for adjust the elasticity degree fixed to the puncture needle, patient's comfort level is improved, the removal of puncture needle has been avoided, patient's blood purification's security improves, medical personnel's work burden has also been alleviateed simultaneously, this simple structure, high durability and convenient operation, the design is.

Drawings

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

Fig. 2 is a full-section right perspective view diagram of the utility model.

Figure 3 is the utility model discloses a ladder cuts open back visual axis mapping.

Fig. 4 is an enlarged view of a in fig. 2 according to the present invention.

Fig. 5 is an enlarged view of B in fig. 2 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 5, including left right direction and nock silica gel base 1 up, silica gel base 1 front side articulates there is left right direction and nock grip block 2 down, inverted trapezoid and opening standing groove 3 down have been seted up in grip block 2, both sides articulate respectively has backup pad 4 around in standing groove 3, the free end of two backup pad 4 articulates there is left right direction and isosceles trapezoid's fixed block 5, standing groove 3 can be stretched out to fixed block 5 lower extreme, link up and opening fixed slot 6 down about 5 belows of fixed block have been seted up, be equipped with in standing groove 3 and be located fixed block 5 top and the supplementary piece 7 that can reciprocate, both sides are articulated rather than the backup pad 4 that corresponds the side through connecting rod 8 respectively around supplementary piece 7 and are connected.

In order to enable the auxiliary block 7 to move up and down, the upper end of the auxiliary block 7 is rotatably connected with a screw rod 9 in the vertical axial direction, the upper end of the screw rod 9 penetrates through the clamping block 2 and is coaxially provided with a knob 10, and the screw rod 9 is in threaded connection with the clamping block 2.

In order to make 2 can be better lieing in patient puncture department of grip block, 1 rear side of silica gel base open and be equipped with left right direction and opening spacing groove 11 up, 2 rear sides of grip block are equipped with the wedge 12 that can insert the spacing groove 11, the draw-in groove 13 that the opening is towards the back is opened to wedge 12 rear side, axial guide bar 14 about 11 internal rotation of spacing groove is connected with, be fixed with on the guide bar 14 fall L shape and can insert the fixture block 15 in the draw-in groove 13.

In order to facilitate the separation of the fixture block 15 from the clamping groove 13 and the swinging of the support plate 4, the right end of the guide rod 14 penetrates through the silica gel base 1 and is coaxially provided with a rotating ring 16, the rear side of the fixture block 15 is connected with the side wall of the limiting groove 11 through a spring piece 17, the left side and the right side of the fixed block 5 are respectively provided with a abdicating groove 18, the openings of the two abdicating grooves 18 are back to back, and the support plate 4 is positioned in the abdicating groove 18 on the.

In order to fix the puncture needle better and avoid pressing the puncture pipeline, the inner wall of the fixed groove 6 is provided with an elastic pad 19 with the same shape, and the lower side of the clamping block 2 is provided with a pipeline groove 20 which is communicated from left to right and has a downward opening.

In order to improve the comfort of the patient, the opposite surfaces of the clamping block 2 and the silica gel base 1 are respectively provided with a sponge layer 21.

When the utility model is used, firstly, the rotating ring 16 is rotated clockwise, the rotating ring 16 drives the clamping block 15 to swing backwards through the guide rod 14, so that the spring piece 17 is compressed, the clamping block 15 is not inserted into the clamping groove 13 any more, then the clamping block 2 swings upwards, the clamping block 2 drives the wedge block 12 to be drawn out from the limiting groove 11, then the arm of the patient is placed between the clamping block 2 and the silica gel base 1, the puncture point of the patient is positioned under the clamping block 2, finally, the clamping block 2 is pushed downwards, the clamping block 2 drives the wedge block 12 to be inserted into the limiting groove 11, the wedge block 12 pushes the clamping block 15 to swing backwards, the spring piece 17 is compressed, when the clamping block 15 is positioned at the opening of the clamping groove 13, under the action of the spring piece 17, the spring piece 17 drives the clamping block 15 to be inserted into the clamping groove 13, the clamping block 2 and the silica gel base 1 are stably fixed on the arm of the patient, and the sponge layer, the comfort of the patient is improved;

when the puncture needle needs to be fixed, firstly, the knob 10 is rotated clockwise, the knob 10 drives the screw rod 9 to slide downwards along the clamping block 2, the screw rod 9 drives the auxiliary block 7 to move downwards, the auxiliary block 7 pushes the support plate 4 to swing downwards through the connecting rod 8, so that the support plate 4 drives the fixed block 5 to move downwards, the lower end of the fixed block 5 extends out of the placing groove 3, meanwhile, the indwelling needle is positioned in the fixed groove 6, the elastic pad 19 is arranged in the fixed groove 6, meanwhile, the threaded connection has self-locking performance, the fixed block 5 can be used for stably fixing the indwelling needle, the puncture needle is prevented from moving and falling off, the patient is injured, the treatment on the patient is not facilitated, the workload of medical personnel is increased, and the pipeline groove 20 is arranged to prevent the pipeline from being extruded, so that the treatment;

when the puncture point is not required to be fixed any more, firstly, the knob 10 is rotated anticlockwise, the knob 10 drives the screw rod 9 to slide upwards along the clamping block 2, the screw rod 9 drives the auxiliary block 7 to move upwards, the auxiliary block 7 pushes the support plate 4 to swing upwards through the connecting rod 8, the support plate 4 pulls the fixing block 5 to move upwards, the fixing block 5 moves to an initial position and is not fixed to the puncture needle any more, then, the rotating ring 16 is rotated clockwise, the rotating ring 16 drives the clamping block 15 to swing backwards through the guide rod 14, the spring piece 17 is compressed, the clamping block 15 is not inserted into the clamping groove 13 and swings upwards along with the clamping block 2, the clamping block 2 drives the wedge-shaped block 12 to be drawn out from the limiting groove 11 and is not clamped to the arm of the patient, and then, the clamping block 2 and the silica gel.

Compared with the prior art, the beneficial effects of the utility model are that: the grip block that is equipped with, the silica gel base, wedge and spacing groove, can be convenient for with the stable arm of fixing at the patient of grip block and silica gel base, it is fixed to the puncture needle to be convenient for, the fixed block that is equipped with, the fixed slot, a supporting plate, connecting rod and screw rod, it is fixed not only to be convenient for make the fixed block to the puncture needle, also be convenient for adjust the elasticity degree fixed to the puncture needle, patient's comfort level is improved, the removal of puncture needle has been avoided, patient's blood purification's security improves, medical personnel's work burden has also been alleviateed simultaneously, this simple structure, high durability and convenient operation, the design is.

Claims (6)

1. The blood purification puncture needle fixing device comprises a silica gel base (1) with an upward arc opening in the left and right directions, the novel silicon rubber base is characterized in that the front side of the silicon rubber base (1) is hinged with a left-right direction and a downward-cambered clamping block (2), a placing groove (3) with a downward inverted trapezoid shape and a downward opening is formed in the clamping block (2), supporting plates (4) are hinged to the front side and the rear side in the placing groove (3) respectively, the free ends of the two supporting plates (4) are hinged with a left-right direction and an isosceles trapezoid-shaped fixing block (5), the placing groove (3) can be extended from the lower end of the fixing block (5), fixing grooves (6) with a downward opening and a left-right through state are formed in the lower side of the fixing block (5), an auxiliary block (7) which is located above the fixing block (5) and can move up and down is arranged in the placing groove (3), and the front side and.

2. The blood purification puncture needle fixing device according to claim 1, wherein the upper end of the auxiliary block (7) is rotatably connected with an upper axial screw rod (9) and a lower axial screw rod (9), the upper end of the screw rod (9) penetrates through the clamping block (2) and is coaxially provided with a knob (10), and the screw rod (9) is in threaded connection with the clamping block (2).

3. The blood purification puncture needle fixing device according to claim 1, wherein a limiting groove (11) with an upward opening is formed in the rear side of the silica gel base (1), a wedge block (12) capable of being inserted into the limiting groove (11) is arranged on the rear side of the clamping block (2), a clamping groove (13) with a backward opening is formed in the rear side of the wedge block (12), a left axial guide rod (14) and a right axial guide rod (14) are rotatably connected to the limiting groove (11), and a clamping block (15) which is inverted L-shaped and capable of being inserted into the clamping groove (13) is fixed on the guide rod (14).

4. The blood purification puncture needle fixing device according to claim 3, wherein the right end of the guide rod (14) penetrates through the silica gel base (1) and is coaxially provided with a rotating ring (16), the rear side of the clamping block (15) is connected with the side wall of the limiting groove (11) through a spring piece (17), the left side and the right side of the fixing block (5) are respectively provided with a yielding groove (18), the openings of the two yielding grooves (18) are opposite, and the support plate (4) is positioned in the yielding groove (18) on the corresponding side.

5. The blood purification puncture needle fixing device according to claim 1, wherein an elastic pad (19) having a shape corresponding to the fixing groove (6) is provided on the inner wall of the fixing groove, and a channel groove (20) is formed through the clamping block (2) at the lower side thereof and having a downward opening.

6. The blood purification puncture needle fixing device according to claim 1, wherein sponge layers (21) are respectively arranged on the opposite surfaces of the clamping block (2) and the silica gel base (1).

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