CN204815021U - Injection negative pressure ware with motion of control piston core bar - Google Patents

Abstract

The utility model relates to an injection negative pressure ware with motion of control piston core bar still includes control mechanism, control mechanism includes first button, second button, first slider and second slider, first button and second button are located respectively on two lateral walls of the left and right sides of barrel, first slider and second slider are located inside the barrel, first slider is located between piston core bar and the second button, the second slider is located between piston core bar and the first button, through a spring coupling between first button and the first slider, through the 2nd spring coupling between second button and the second slider, be equipped with the multistage bilateral symmetry's of being draw -in groove in its vertical direction of piston core bar edge, the draw -in groove uses with first slider and second cooperation. The utility model provides a but the injection negative pressure ware of convenient operation control piston core bar motion, it not only designs simply, the cost is lower, and pollution probability has moreover significantly reduced.

Description

An injection negative pressure device equipped with a control piston core rod movement

technical field

The utility model relates to the technical field of medical equipment, in particular to an injection negative pressure device provided with a control piston core rod movement.

Background technique

At present, there are patients who need negative pressure drainage clinically, but because the postoperative drainage time is short, the pressure requirement of the drainage site is small, and the central negative pressure is too large and the negative pressure machine is expensive, so the patient needs a small one. The negative pressure device usually adopts the method of making a negative pressure device from a common syringe. After pumping out the negative pressure state, in order to maintain the negative pressure state for a long time, it is necessary to use a wooden stick or needle cap to support the piston core rod, or use a clip to clamp the piston core rod so that the piston core rod cannot be sucked by negative pressure. go down. There are two technical disadvantages in the process of negative pressure assisted therapy in the above-mentioned simple method:

1. Wooden sticks or clips sometimes pop out due to excessive pressure, which may hurt people or things when they pop up, which is dangerous;

2. The wall of the syringe will be polluted during use, which will affect the use of the device;

3. This kind of support method is not easy to operate, and the stability is poor, and it is difficult to control the specific movement of the piston core rod.

In summary, there is an urgent need to design an injection negative pressure device that overcomes the above-mentioned existing problems.

Utility model content

The purpose of the utility model is to provide an injection negative pressure device which is easy to operate and can control the movement of the piston core rod, which not only has simple design and low cost, but also greatly reduces the probability of pollution.

In order to achieve the above purpose, the technical solution adopted by the utility model is: an injection negative pressure device equipped with a control piston core rod movement, including a piston core rod and a cylinder, a handle is arranged on the top of the piston core rod, the outside of the cylinder;

It also includes a control mechanism, the control mechanism includes a first button, a second button, a first slider and a second slider, the first button and the second button are respectively arranged on the left and right outer walls of the cylinder above; the first slider and the second slider are arranged inside the barrel, the first slider is arranged between the piston core rod and the second button; the second slider is arranged on the between the piston core rod and the first button;

The first button is connected to the first slider through a first spring; the second button is connected to the second slider through a second spring;

The piston core rod is provided with multi-level symmetrical slots along its vertical direction, and the slots are used in cooperation with the first slider and the second slider.

An injection negative pressure device provided with a control piston core rod movement as described above, wherein the diameter of the piston core rod is one-third of the diameter of the cylinder;

The first slider is attached to the piston core rod under the elastic force of the first spring, and the width of the first slider is 1/4 of the diameter of the barrel;

The second slider is attached to the piston core rod under the elastic force of the second spring, and the width of the second slider is 1/4 of the diameter of the barrel.

The above-mentioned negative pressure injection device provided with a control piston core rod movement, wherein the piston core rod is arranged between the first spring and the second spring.

According to the above-mentioned negative pressure device for injection with control of the movement of the piston core rod, the first button and the second button respectively include a stainless steel outer casing and rubber protrusions arranged inside the outer casing.

According to the above-mentioned negative pressure injection device provided with a control piston core rod movement, the first spring and the second spring are respectively high-elastic miniature springs.

Compared with the prior art, the beneficial effects produced by the utility model are mainly reflected in:

1. An injection negative pressure device of the utility model equipped with a control piston core rod movement, controls the movement of the piston core rod through the control mechanism, and snaps each slider into each card slot to resist the resulting Long-lasting negative pressure makes it safe and practical;

2. The utility model is an injection negative pressure device equipped with a control piston core rod movement, which is simple in structure, convenient to use, and low in cost, and is suitable for being widely used in clinical practice.

Description of drawings

Fig. 1 is a structural schematic diagram of an injection negative pressure device provided with a control piston core rod movement of the utility model;

Explanation of reference signs:

1. Piston core rod 2. Cylinder body 31. The first button

32, the second button 41, the first slider 42, the second slider

51. First spring 52. Second spring 6. Card slot

7. Outer shell 8. Rubber protrusion 9. Handle

Detailed ways

In order to facilitate the understanding of the purpose, technical solutions and effects of the utility model, the utility model will be further described in detail in combination with embodiments.

As shown in Fig. 1, a kind of injection negative pressure device of the present utility model is provided with the control piston core rod 1 movement, comprises piston core rod 1 and cylinder body 2, and the top of described piston core rod 1 is provided with a handle 9, is set Outside the barrel 2; also includes a control mechanism, the control mechanism includes a first button 31, a second button 32, a first slider 41 and a second slider 42, the first button 31 and the second button 32 are respectively arranged on the left and right outer walls of the cylinder 2; the first slider 41 and the second slider 42 are arranged inside the cylinder 2, and the first slider 41 is arranged on the Between the piston core rod 1 and the second button 32; the second slider 42 is arranged between the piston core rod 1 and the first button 31; between the first button 31 and the first slider 41 through The first spring 51 is connected; the second button 32 and the second slider 42 are connected by the second spring 52; the piston core rod 1 is provided with multi-level symmetrical slots 6 along its vertical direction , the card slot 6 is used in cooperation with the first slider 41 and the second slider.

A kind of injection negative pressure device of the utility model is provided with control piston core rod 1 movement, controls the movement situation of piston core rod 1 through the control mechanism; Insert the first slider 41 and the second slider 42 into the corresponding slots 6 to ensure that they can withstand the resulting persistent negative pressure, making them safe and practical; then, when the piston core rod 1 needs to continue When pulling out, use both hands to press the first button 31 and the second button 32 on both sides of the barrel 2, and the first spring 51 and the second spring 52 will push the first slider 41 connected to it under the action of active force. and the second slide block 42 are pushed forward respectively to make it slide out from the draw-in groove 6; button 32, then the first slider 41 and the second slider 42 can be snapped into the slot 6,

As shown in Fig. 1, a kind of injection negative pressure device of the utility model is provided with the movement of control piston core rod 1, and the diameter of described piston core rod 1 is one-third of the diameter of described cylinder body 2; The first slider 41 is attached to the piston core rod 1 under the elastic force of the first spring 51, and the width of the first slider 41 is 1/4 of the diameter of the cylinder 2; The second slider 42 is attached to the piston core rod 1 under the elastic force of the second spring 52 , and the width of the second slider 42 is 1/4 of the diameter of the barrel 2 .

As shown in FIG. 1 , an injection negative pressure device of the present invention is equipped with a control piston core rod 1 , and the piston core rod 1 is arranged between the first spring 51 and the second spring 52 .

The utility model is provided with an injection negative pressure device for controlling the movement of the piston core rod 1. The first spring 51 and the second spring 52 are respectively arranged at the two ends of the piston core rod 1. The interference of the piston core rod 1, which is also not in contact with the piston core rod 1, avoids causing unnecessary pollution.

As shown in Fig. 1, a kind of injection negative pressure device of the present utility model is provided with control piston core rod 1 movement, and described first button 31 and second button 32 comprise stainless steel outer casing 7 and are arranged on the outer casing 7 respectively. The rubber protrusion 8 inside the body 7.

A kind of injection negative pressure device of the present utility model is provided with control piston core rod 1 movement, and the design of this first button 31 and second button 32 has guaranteed that this first button 31 and second button 32 do not use when in use. Laborious and relatively convenient to use.

As shown in FIG. 1 , the utility model is provided with an injection negative pressure device for controlling the movement of the piston core rod 1 , and the first spring 51 and the second spring 52 are respectively high-elastic miniature springs.

The utility model has been further described above in conjunction with the embodiments, but the utility model is not limited to the above-mentioned embodiment, within the scope of knowledge possessed by those of ordinary skill in the art, it can also be used without departing from the purpose of the utility model. Make various changes.

Claims (5)

1. be provided with an injection negtive-pressure implement for control piston core bar motion, comprise piston core bar and cylindrical shell, it is characterized in that:

The top of described piston core bar is provided with one handle, is located at described cylindrical shell outside; Also comprise controlling organization, described controlling organization comprises the first button, the second button, the first slide block and the second slide block, and described first button and the second button are located on the lateral wall, two, left and right of described cylindrical shell respectively; Described first slide block and the second slide block are located at described inner barrel, and described first slide block is located between described piston core bar and the second button; Described second slide block is located between described piston core bar and the first button;

Connected by the first spring between described first button and the first slide block; Connected by the second spring between described second button and the second slide block;

Described piston core bar is provided with multistage symmetrical draw-in groove along its vertical direction, described draw-in groove and the first slide block and second with the use of.

2. a kind of injection negtive-pressure implement being provided with the motion of control piston core bar according to claim 1, is characterized in that:

The diameter of described piston core bar is 1/3rd of the diameter of described cylindrical shell;

Described first slide block is attached on described piston core bar under the elastic force effect of the first spring, and the width of described first slide block is 1/4th of the diameter of described cylindrical shell;

Described second slide block is attached on described piston core bar under the elastic force effect of the second spring, and the width of described second slide block is 1/4th of the diameter of described cylindrical shell.

3. a kind of injection negtive-pressure implement being provided with the motion of control piston core bar according to claim 2, is characterized in that:

Described piston core bar is located between described first spring and the second spring.

4. a kind of injection negtive-pressure implement being provided with the motion of control piston core bar according to claim 3, is characterized in that:

Described first button and the second button comprise stainless shell body respectively and are located at the rubber bumps of described shell body inside.

5. a kind of injection negtive-pressure implement being provided with the motion of control piston core bar according to claim 4, is characterized in that:

Described first spring and the second spring are respectively high-tension microsprings.