CN103610597A - Finely-adjustable nasogastric-feeding quantitative infusion device - Google Patents

Abstract

The fine-tunable nasogastric tube feeding quantitative infusion device includes a syringe with a piston rod and an infusion device. The syringe is placed in the fixed groove of the infusion device, and the push rod of the infusion device is provided with a quantitative control device. The side of the handle of the infusion device facing the trigger is provided with a quantitative adjustment device, which includes a wedge-shaped slider arranged on the side of the handle facing the trigger, and a nut with a threaded rod arranged at the bottom of the handle, and the thread One end of the rod is connected to the bottom of the wedge-shaped slider, and by turning the threaded rod, the wedge-shaped slider slides on the side of the handle facing the trigger. The invention is simple in structure, easy to use, realizes quantitative infusion that can be finely adjusted, and is especially suitable for gastrointestinal tube feeding of home-made or self-made homogenate. The chance of infection; the end is connected to the outer tube with a handle to prevent the interface from being separated during operation, which is clean, economical and convenient.

Description

Fine-adjustable Nasogastric Tube Feeding Quantitative Infusion Device

technical field

The invention relates to a medical auxiliary device, in particular to a fine-adjustable nasogastric tube feeding quantitative infusion device.

Background technique

Nasogastric tube feeding has been widely used clinically, and can be slowly instilled through a nasal feeding pump or a nasogastric tube. Nasal feeding pump can be selected in the hospital, but for patients who are fed by gastrointestinal tube at home, it is specially purchased, and the cost is too high; while enteral nutrition pump tube dripping is acceptable for finished nutritional preparations in bottles or bags, but for self-made nutritional preparations. Liquid food or nutritional preparations that need to be dissolved in powder, due to uneven mixing or large particles, are likely to block the enteral nutrition pump tube, and need to use a syringe to inject into the gastrointestinal tube.

The syringe currently used clinically is a syringe for intravenous drug preparation. Since this syringe does not have a filter device, medical staff or family members will filter the self-made homogenate with gauze or a fine colander, which leads to complicated operations and cumbersome procedures. The chance of contamination is increased, which can easily cause gastrointestinal infection; the needle plug is push-pull, and it will be very laborious for the injection volume of more than 100 ml. Therefore, there is an urgent need for a gastrointestinal tube feeding infusion device that is easy to operate and capable of quantitative control.

Contents of the invention

The object of the present invention is to provide a finely adjustable nasogastric tube feeding quantitative infusion device to make up for the deficiencies in the prior art.

A finely adjustable nasogastric tube feeding quantitative infusion device, comprising a syringe with a piston rod, and an infusion device, the infusion device has a semi-cylindrical fixing groove, and a front end is arranged in the fixing groove A push rod with a push piece, and a handle with a trigger is provided at the end of the fixing groove, the push rod moves forward by buckling the trigger, and the trigger can automatically reset after buckling, and the feature is that the syringe placed in the fixing groove of the infusion device, and the said push rod is provided with a quantitative control device, said quantitative control device comprises a ring-shaped structure set on the push rod, and the ring-shaped structure The side of the handle is provided with fastening bolts; the side of the handle facing the trigger is provided with a quantitative adjustment device, which includes a wedge-shaped slider arranged on the side of the handle facing the trigger, and a nut with a threaded rod arranged at the bottom of the handle , and one end of the threaded rod is connected to the bottom of the wedge-shaped slider, and by turning the threaded rod, the wedge-shaped slider slides on the side of the handle facing the trigger.

A scale is provided on the outer surface of the handle, and the scale is parallel to the threaded rod.

Above-mentioned push rod is provided with scale.

The side of the front end of the syringe is provided with a funnel-shaped feed port, and the top of the feed port is provided with a press-and-open type feed port cover.

A one-way valve is arranged in the above-mentioned feeding port.

The joint at the top of the syringe is a conical structure, and the outer surface of the conical structure is provided with a plurality of annular anti-off protrusions along the radial direction.

The capacity of the aforementioned syringe was set at 100 ml.

The infusion device is also provided with an arc-shaped detachment device that slides along the fixing groove.

A tether is also provided on the above-mentioned detachment preventer.

The invention is simple in structure, easy to use, realizes quantitative infusion that can be finely adjusted, and is especially suitable for gastrointestinal tube feeding of home or self-made homogenate. The chance of infection; the end is connected to the outer tube with a handle to prevent the interface from being separated during operation, which is clean, economical and convenient.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the invention.

Fig. 2 is a schematic diagram of the three-dimensional structure of the invention.

Fig. 3 is a three-dimensional schematic diagram of the inventive syringe.

Figure 4 is a side view of the inventive infusion device.

Fig. 5 is a structural schematic diagram of the quantitative adjustment device of the invention.

Among them, the syringe 1, the piston rod 2, the infusion device 3, the fixing groove 4, the push piece 5, the push rod 6, the trigger 7, the handle 8, the circular structure 9, the fastening bolt 10, the wedge-shaped slider 11, the screw thread Rod 12, feeding port 13, joint 14, anti-off device 15, tether 16, nut 17.

As shown in the figure, pull the inner tube out of the filter, press to open the filter, filter the prepared homogenate into the syringe, open the joint protection device, connect the tapered interface, push down the joint protection device, and put it on the gastrointestinal tube , pull one end until it is tight, and fix the interface end.

Detailed ways

As shown in Figures 1 to 5, the quantitative infusion device for nasogastric tube feeding of the present invention includes a syringe 1 with a piston rod 2, and an infusion device 3, the infusion device 3 adopts the structure of a glue gun, It includes a semi-cylindrical fixing groove 4, which is provided with a push rod 6 with a push piece 5 at the front end, and a handle 8 with a trigger 7 is provided at the end of the fixing groove 4, and the push rod 6 is locked by buckling The trigger 7 moves forward, and the trigger 7 has the function of using the spring to automatically reset after being engaged. The syringe 1 is placed in the fixing groove 4 of the infusion device 3, and the push rod 6 is provided with Quantitative control device, said quantitative control device includes a ring-shaped structure 9 sleeved on the push rod 6 for sliding to a desired position on the push rod 6, and the side of the ring-shaped structure 9 A fastening bolt 10 is provided for locking the annular structure 9 at the above position, which can prevent the push rod 6 from continuing to move forward; the side of the handle 8 facing the trigger 7 is also provided with a quantitative adjustment device, as shown in Figure 5, the quantitative adjustment device includes a wedge-shaped slider 11 arranged on the side of the handle 8 facing the trigger 7, and a nut 17 provided at the bottom of the handle 8 with a threaded rod 12, and the threaded rod One end of 12 is connected to the bottom of the wedge-shaped slider 11. By turning the threaded rod 12, the wedge-shaped slider 11 slides on the side of the handle 8 facing the trigger 7. When the slider 11 slides to a different position, the trigger 7 can be controlled to engage. range, so as to adjust the single injection amount. Since the trigger 7 has a reset function, the same amount can be continuously injected by continuously buckling the trigger 7.

There is a scale on the outer surface of the handle 8, and the scale is parallel to the threaded rod 12. Since the threaded rod has the characteristics of continuous advancement, it can realize continuous adjustment between "0~maximum single injection volume". , to play a real fine-tuning effect. The total injection volume is adjusted by the quantitative control device, and the single injection volume is adjusted by the quantitative adjustment device.

Its advantage is also that it can adapt to syringes of different capacities and different diameters, and the position on the handle scale of the required single injection amount can be calculated through the continuous scale value on the handle 8; through the continuous scale value on the push rod 6 It is also possible to calculate the position on the scale of the push rod corresponding to the total injection amount once.

There is a scale on the above-mentioned push rod 6, which can convert the length of the push rod 6 into the injected volume, which can play a role in adjusting the total injection volume. No matter where the above-mentioned slider 11 is, when the push rod 7 moves to the quantitative control When the scale defined by the device is used, the total injection volume will be the capacity corresponding to the scale.

As shown in FIGS. 1-3 , a funnel-shaped feeding port 13 is provided on the side of the front end of the above-mentioned syringe 1 , and the top of the feeding port 13 is provided with a pop-open type feeding port cover, so as to facilitate feeding the syringe 1 .

A one-way valve is arranged in the above-mentioned feed port 3, so that the feed will not overflow from the feed port 13 during injection.

As shown in FIG. 1 , the joint 13 at the top of the above-mentioned syringe 1 is a conical structure, and the outer surface of the conical structure is provided with a plurality of ring-shaped detachment prevention protrusions along the radial direction. When using, draw the inner tube of the syringe to the feeding port, filter the prepared homogenate into the syringe, close the feeding port, open the nasogastric tube joint protection device, connect the tapered interface 13, push down the joint protection device, and put it on the stomach Put it on the tube and it's ready to use.

The capacity of the above-mentioned syringe 1 is set to 100 milliliters.

As shown in Figures 1, 2, and 4, the above-mentioned infusion device 3 is also provided with an arc-shaped detachment preventer 15 that slides along the fixing groove 4. After the syringe 1 is loaded into the fixation groove 4, the detachment preventer slides To the top of the syringe 1 to prevent the syringe from falling off. The above-mentioned detachment preventer 15 is also provided with a tether 16, which is used to tie parts such as joint caps.

Claims (9)

1. A finely adjustable nasogastric tube feeding quantitative infusion device, including a syringe (1) with a piston rod (2), and an infusion device (3), the infusion device (3) has a half cylinder type fixed groove (4), the fixed groove (4) is provided with a push rod (6) with a push piece (5) at the front end, and the end of the fixed groove (4) is provided with a handle (8) with a trigger (7) ), the push rod (6) moves forward by buckling the trigger (7), and the trigger (7) can automatically reset after being buckled, characterized in that the syringe (1) is placed in the infusion set (3) in the fixing groove (4), and the said push rod (6) is provided with quantitative control device, said quantitative control device includes a circular structure ( 9), and the side of the annular structure (9) is provided with fastening bolts (10); the side of the handle (8) facing the trigger (7) is provided with a quantitative adjustment device, and the quantitative adjustment device includes a The wedge-shaped slider (11) on the side of the handle (8) facing the trigger (7), and a nut (17) with a threaded rod (12) on the bottom of the handle (8), and the threaded rod (12) One end is connected to the bottom of the wedge-shaped slider (11), and by turning the threaded rod (12), the wedge-shaped slider (11) slides on the side of the handle (8) facing the trigger (7). 2. The fine-adjustable nasogastric tube feeding quantitative infusion device according to claim 1, characterized in that a scale is provided on the outer surface of the handle, and the scale is parallel to the threaded rod (12). 3. The fine-adjustable nasogastric tube feeding quantitative infusion device according to claim 1, characterized in that a scale is provided on the push rod (6). 4. The fine-tunable nasogastric tube feeding quantitative infusion device according to claim 1, characterized in that the side of the front end of the syringe (1) is provided with a funnel-shaped feeding port (13), and the feeding port (13) The top is provided with a push-and-open material port cover. 5. The fine-tunable nasogastric tube feeding quantitative infusion device according to claim 1, characterized in that a one-way valve is provided in the feeding port (13). 6. The fine-tunable nasogastric tube feeding quantitative infusion device according to claim 1, characterized in that the joint (14) at the top of the syringe (1) is a conical structure, and the outer surface of the conical structure is along the radial direction A plurality of ring-shaped anti-off protrusions are provided. 7. The fine-adjustable quantitative infusion device for nasogastric tube feeding according to claim 1, characterized in that the volume of the above-mentioned syringe (1) is set to 100 ml. 8. The fine-tunable nasogastric tube feeding quantitative infusion device according to claim 1, characterized in that the above-mentioned infusion device (3) is also equipped with an arc-shaped detachment device ( 15). 9. The fine-adjustable nasogastric tube feeding quantitative infusion device according to claim 1, characterized in that a tether (16) is also provided on the above-mentioned detachment preventer (15).

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