CN221083745U - Fixed point puncture guide needle positioner - Google Patents

Abstract

A fixed-point puncture guide needle locator effectively solves the problem of inconvenient needle insertion and positioning during arteriovenous fistula puncture; it comprises an arc-shaped positioning plate, positioning belts are respectively provided at the left and right ends of the positioning plate, a swinging groove with an opening facing upward and penetrating front and back is opened on the upper side of the positioning plate, swing rods are respectively hinged on the left and right sides of the swinging groove, a sliding block is slidably connected to the rear sides of the two swing rods, a butterfly groove with an opening facing upward is opened on the sliding block, a placement hole penetrating front and back is opened on the sliding block, a cover plate is hinged on the upper side of the sliding block, handles are respectively provided on the left and right sides of the rear end of the sliding block, a support rod in the front and back direction is hinged on the lower side of the swing rod, two supporting grooves facing front and back are respectively opened on the left and right sides of the positioning plate, the upper ends of the supporting grooves are connected to the swinging grooves and correspond to the support rods on the corresponding sides, a pressing belt is provided above the positioning plate, and the pressing belt can contact the two swing rods; this structure is simple, easy to operate, novel in conception, and highly practical.

Description

A fixed-point puncture guide needle locator

Technical Field

The utility model relates to the technical field of puncture auxiliary instruments, in particular to a fixed-point puncture guide needle positioner.

Background technique

Arteriovenous fistula is a surgical procedure mainly used for hemodialysis treatment. Arteriovenous fistula is a minor surgery to anastomose blood vessels. The artery near the wrist of the forearm and the adjacent vein are sutured so that arterial blood flows in the anastomosed vein, forming an arteriovenous fistula. The blood vessels of the arteriovenous fistula can provide sufficient blood for hemodialysis treatment, thus ensuring the adequacy of dialysis treatment.

During puncture, the needle is inserted at an angle of 40°-45°. When it pierces the skin, there is a sudden sensation and the artificial blood vessel is touched. After entering the artificial blood vessel, a feeling of emptiness can be felt. After blood returns, the angle between the puncture needle and the skin is reduced to 20°-30°. Continue to advance the needle into the blood vessel until the entire needle body is inserted. Then fix the puncture needle to an appropriate and comfortable position to prevent the puncture needle from being dislocated or dislodged. It is difficult for medical staff to judge the angle of puncture during operation, which affects the effect of puncture. Medical tape is often used to wrap the patient's arm when the puncture needle is fixed. For patients with sensitive skin, it is easy to cause skin infection and cause discomfort to the patient.

Utility Model Content

In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a fixed-point puncture guide needle locator, which effectively solves the problem of inconvenient puncture needle insertion and positioning during arteriovenous fistula puncture.

The technical solution is as follows: the utility model comprises an arc-shaped positioning plate, positioning belts are respectively provided at the left and right ends of the positioning plate, a swinging groove with an opening facing upward and penetrating front and back is provided on the upper side of the positioning plate, swing rods are respectively hinged on the left and right sides of the swinging groove, a sliding block is slidably connected to the rear sides of the two swing rods, a butterfly groove with an opening facing upward is provided on the sliding block, a placement hole penetrating front and back is provided on the sliding block, a cover plate is hinged on the upper side of the sliding block, handles are respectively provided on the left and right sides of the rear end of the sliding block, a support rod in the front and back direction is hinged on the lower side of the swing rod, two supporting grooves facing front and back are respectively provided on the left and right sides of the positioning plate, the upper ends of the supporting grooves are connected with the swinging grooves and correspond to the support rods on the corresponding sides thereof, a pressing belt is provided above the positioning plate, and the pressing belt can contact the two swing rods.

The utility model can position the puncture angle when the patient is punctured, which is convenient for medical staff to insert the puncture needle, and the positioning angle can be adjusted according to the depth of the needle insertion. After the patient's puncture is completed, the puncture needle is directly positioned without the need for bonding with medical tape, thereby improving the efficiency of puncture and being beneficial for medical staff to use. The utility model has the advantages of simple structure, convenient operation, novel conception and strong practicality.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is an axonometric view of the present utility model.

FIG. 2 is a partially cutaway main axonometric view of the present invention.

FIG. 3 is a partially cutaway main axonometric view of the present invention.

FIG. 4 is a partially cut-away rear axonometric view of the present invention.

FIG. 5 is a partially cutaway top axonometric view of the present invention.

FIG. 6 is a partially cutaway right axonometric view of the present invention.

FIG. 7 is a partially cutaway top axonometric view of the present invention.

Detailed ways

The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

As shown in Figures 1 to 7, it includes an arc-shaped positioning plate 1, and positioning belts 2 are respectively provided at the left and right ends of the positioning plate 1. A swing groove 3 with an opening facing upward and penetrating from front to back is opened on the upper side of the positioning plate 1, and swing rods 4 are hinged on the left and right sides of the swing groove 3, respectively. A slider 5 is slidably connected to the rear sides of the two swing rods 4, and a butterfly groove 6 with an opening facing upward is opened on the slider 5. A placement hole 7 that passes through the front and back is opened on the slider 5. A cover plate 8 is hinged on the upper side of the slider 5, and handles 9 are respectively provided on the left and right sides of the rear end of the slider 5. A support rod 10 in the front and back direction is hinged on the lower side of the swing rod 4. Two front-to-back opposing support grooves 11 are respectively opened on the left and right sides of the positioning plate 1, and the upper ends of the support grooves 11 are connected to the swing groove 3 and correspond to the support rod 10 on the corresponding side. A pressing belt 12 is provided on the top of the positioning plate 1, and the pressing belt 12 can contact the two swing rods 4.

In order to facilitate the use of the positioning belt 2, the positioning belt 2 on the right side is provided with a Velcro tape, and the positioning belt 2 on the left side is provided with a Velcro mother tape that can be bonded with the Velcro tape.

In order to facilitate the sliding of the slider 5, guide rail grooves are respectively opened on the opposite sides of the two swing rods 4, and guide blocks 13 are respectively provided on the left and right sides of the slider 5 to be inserted into the guide rail grooves on the corresponding sides.

In order to facilitate limiting the sliding position of the slider 5, the two handles 9 are respectively provided with elastic cards 14 at the opposite ends, and the two elastic cards 14 are distributed in an eight-shaped shape. The opposite sides of the two rocker arms 4 are respectively provided with a plurality of slots 15 evenly distributed along the front-to-back direction, and the elastic cards 14 can be inserted into the slots 15 on the corresponding sides.

In order to limit the position of the cover plate 8, a slot with an opening facing upward is provided on the left side of the slider 5, and a block 16 inserted into the slot is provided at the lower end of the cover plate 8.

In order to facilitate the movement of the cover plate 8, grooves 17 are respectively provided on the front and rear sides of the cover plate 8.

When the utility model is in use, the free end of the pressing belt 12 is arranged to be bonded to the upper side of the positioning plate 1, and the medical staff wraps the positioning belt 2 around the patient's limbs, and then bonds the Velcro sub-stick to the Velcro mother-stick to fit the positioning plate 1 to the patient's skin, and then the cover plate 8 is swung upward through the groove 17 to move the card block 16 out of the card slot, and then the puncture needle with the butterfly wing is placed in the butterfly groove 6, and then the puncture needle is passed through the placement hole 7, and the cover plate 8 is pressed on the slider 5 to insert the card block 16 into the card slot. At this time, the card block 16 will not be moved out of the card slot without the action of external force, and the puncture needle is fixed;

Then, the swing rod 4 is swung upward to drive the slider 5 and the cover plate 8 to swing synchronously, and then the lower sides of the two support rods 10 are inserted into the two support grooves 11 on the front side. At this time, the angle between the two swing rods 4 and the positioning plate 1 is a suitable puncture angle, and then the two elastic cards 14 are pressed relatively, and the elastic cards 14 are moved out of the card slots, and then the slider 5 is moved by pressing the handle 9, and the slider 5 drives the puncture needle to enter the patient;

After entering the blood vessel, the support rod 10 is swung forward so that the support rod 10 swings into the support groove 11 on the rear side, the needle insertion angle changes, and the needle continues to move forward. When the needle body is immersed in the patient's blood vessel, the support rod 10 is swung to level the support rod 10, and then the two swing rods 4 are placed horizontally. At this time, the elastic card 14 is released, and the elastic card 14 is inserted into the card slot. The position of the slider 5 is restricted, the puncture is completed, and the puncture needle is positioned on the patient's arm at the same time.

The utility model provides a positioning plate, a positioning belt, a pull belt, a swing rod, a slider, a cover plate, a support rod and a support groove, so that the puncture angle can be positioned when the patient is punctured, which is convenient for medical personnel to insert the puncture needle and can adjust the positioning angle according to the depth of the needle insertion. After the patient's puncture is completed, the puncture needle is directly positioned without the need for bonding with medical tape, which improves the efficiency of puncture and is convenient for use by medical personnel. The utility model has a simple structure, is easy to operate, has a novel concept and is highly practical.

Claims (6)

1. The utility model provides a fixed point puncture guide pin locator, including curved locating plate (1), its characterized in that, both ends are equipped with locating belt (2) respectively about locating plate (1), open side up and front and back link up swing groove (3) have been seted up to locating plate (1) upside, the swing groove (3) are interior left and right sides articulates respectively has pendulum rod (4), two pendulum rod (4) rear side sliding connection has a slider (5), opening butterfly groove (6) up have been seted up on slider (5), place hole (7) that link up around having been seted up on slider (5), slider (5) upside articulates there is apron (8), slider (5) rear end left and right sides is equipped with respectively according to handle (9), pendulum rod (4) downside articulates bracing piece (10) of front and back direction, two front and back relative supporting groove (11) have been seted up respectively on locating plate (1), supporting groove (11) upper end and swing groove (3) intercommunication and rather than corresponding side bracing piece (10) correspond, locating plate (1) top is equipped with and presses area (12) and can contact with two pendulum rods (4).

2. The fixed point puncture guide needle positioner according to claim 1, wherein the positioning belt (2) on the right side is provided with a magic sub-plaster, and the positioning belt (2) on the left side is provided with a magic mother plaster which can be adhered with the magic sub-plaster.

3. The fixed point puncture guide needle positioner according to claim 1, wherein guide rail grooves are respectively formed on opposite sides of the two swing rods (4), and guide blocks (13) inserted into the guide rail grooves on corresponding sides of the slide blocks are respectively arranged on the left side and the right side of the slide blocks (5).

4. The fixed point puncture guide needle positioner according to claim 1, wherein the opposite ends of the two pressing handles (9) are respectively provided with an elastic card (14), the two elastic cards (14) are distributed in a splayed shape, opposite sides of the two swinging rods (4) are respectively provided with a plurality of slots (15) uniformly distributed along the front-back direction, and the elastic cards (14) can be inserted into the slots (15) on the corresponding sides.

5. The fixed point puncture guide needle positioner according to claim 1, wherein the left side of the sliding block (5) is provided with a clamping groove with an upward opening, and the lower end of the cover plate (8) is provided with a clamping block (16) inserted into the clamping groove.

6. The fixed point puncture guide needle positioner according to claim 1, wherein grooves (17) are respectively formed in the front side and the rear side of the cover plate (8).