CN205287106U

CN205287106U - Device is used in infusion

Info

Publication number: CN205287106U
Application number: CN201620007861.7U
Authority: CN
Inventors: 杨健
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-05
Filing date: 2016-01-05
Publication date: 2016-06-08
Anticipated expiration: 2026-01-05

Abstract

The utility model discloses a device is used in infusion, including spiral shell screw cap and connector thread lid, still including the joint upper cover, connect the upper cover with the connector thread lid is connected, the lower tip that connects the upper cover is provided with the rubber ring, the lower part of rubber ring still is provided with the unidirectional flux valve, be provided with unanimous with the liquid flow direction arch that has the inner chamber on the unidirectional flux valve, the cross mouth has been seted up in the arch, when along with when external force is applyed to direction that bellied protruding direction is unanimous, the cross mouth is in the state of opening, and the fluid flows out, when along with when external force is applyed to bellied protruding opposite direction's opposite direction, the cross mouth is in the closed condition. The utility model discloses simple structure, convenient to use can prevent liquid refluence carrying out filterable while to liquid well.

Description

Transfusion device

Technical field

This utility model relates to technical field of medical equipment, particularly relates to the transfusion device of the liquid backflows such as a kind of anti-Hemostatic Oral Liquid or medicinal liquid.

Background technology

Transfusion, blood transfusion or the conveying etc. of nutrient substance are the passages setting up between vein and medicinal liquid by transfusion device, be treatment of diseases compared with frequently with a kind of method. During use, liquid in infusion bottle (includes medicinal liquid, blood or nutrient substance etc., lower same) under the effect of atmospheric pressure, in bottle, flow into infusion tube and flow into vein sustainedly and stably by transfusion device, supplement medicinal liquid, blood for human body or nutrient substance is provided. In infusion process, medical personnel need frequently transfusion condition to be observed, especially medicinal liquid by defeated most time, medical personnel need to guard side until medicinal liquid defeated to the greatest extent after immediately infusion needle is extracted, refluxing with liquidproof, healthy to patient brings adverse effect, even causes danger.

Additionally, in infusion process, owing to partially liq is carried after powdery type medicine dissolution, there is the little microgranule of slightly solubility unavoidably, patient person may be brought danger by the existence of little microgranule. It addition, before medicinal liquid is sucked transfusion device, it is necessary to scratching the vial containing medicinal liquid, in scratching process, smaller glass fragment is likely to fall in vial, and is inhaled in needle tubing by syringe needle, brings very big danger to patient.

Therefore, those skilled in the art need a kind of transfusion device of research badly, in order to solve liquid backflow, intercept the effect of insoluble little microgranule.

Utility model content

Because the drawbacks described above of prior art, this utility model provides a kind of syringe front end that is installed on to prevent liquid backflow, to intercept the transfusion device of insoluble little microgranule.

For achieving the above object, this utility model provides a kind of transfusion device, at least includes screw-cap and joint screw thread lid, also includes joint upper cover, and described joint upper cover is connected with described joint screw thread lid; The bottom of described joint upper cover is additionally provided with cushion rubber; The bottom of described cushion rubber is additionally provided with one-way conduction valve, and described one-way conduction valve is provided with the projection with inner chamber, and the protrusion direction of described projection is consistent with liquid flow direction, and described projection offers cross mouth; When applying external force along the direction consistent with the protrusion direction of described projection, described cross mouth is in opening, and fluid flows out;When applying external force along the protrusion direction opposite direction with described projection, described cross mouth is closed.

In some preferred implementations, described cushion rubber includes the first cushion rubber and the second cushion rubber, is provided with filter membrane, described filter membrane offers filtering holes between described first cushion rubber and described second cushion rubber.

In some preferred implementations, the aperture of the filtering holes on described filter membrane is 1.0-6.0 micron, and percent opening is more than 90%.

In some preferred implementations, the aperture of the filtering holes on described filter membrane is 5 microns.

In some preferred implementations, described filter membrane adopts nylon material.

In some preferred implementations, described one-way conduction valve adopts PVC or silica gel material.

The beneficial effects of the utility model:

Said structure of the present utility model designs, and arranges one-way conduction valve in device, and when having in device, liquid normal stream is out-of-date, and one-way conduction valve is applied external force by liquid, and one-way conduction valve is in the conduction state, and liquid enters human body by device; When transfusion terminates, the external force putting on one-way conduction valve disappears, one-way conduction valve cuts out, now, refluxing if any liquid, unidirectional one-way valve is applied reverse power by the liquid of backflow, under the effect of this external force, one-way conduction valve is closed, and the liquid of backflow cannot pass through one-way conduction valve, such that it is able to function well as the effect preventing liquid from refluxing.

Said structure of the present utility model designs, owing to being provided with filter membrane between the first cushion rubber and the second cushion rubber, insoluble little microgranule in liquid and small glass fragment can be filtered by filter membrane, ensure that the safety of infusion process, simultaneously, it is more smooth and easy that the percent opening of more than 90% ensure that liquid flows, it is ensured that the normal circulation of liquid.

Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to be fully understood from the purpose of this utility model, feature and effect.

Accompanying drawing explanation

Fig. 1 is the decomposition texture schematic diagram of this utility model embodiment 1.

Fig. 2 is the decomposition texture schematic diagram of this utility model embodiment 2.

In figure: screw-cap 1, joint upper cover 2, the first cushion rubber 3, filter membrane 4, the second cushion rubber 5, one-way conduction valve 6, protruding 61, cross mouth 62, joint screw thread lid 7.

Detailed description of the invention

Embodiment 1

As it is shown in figure 1, the present embodiment proposes a kind of transfusion device, this transfusion device includes screw-cap 1, joint upper cover the 2, first cushion rubber the 3, second cushion rubber 5, one-way conduction valve 6, projection 61, cross mouth 62 and joint screw thread lid 7.

Screw-cap 1 is arranged on joint upper cover 2, and the bottom of joint upper cover 2 is additionally provided with cushion rubber 3. The bottom of cushion rubber 3 is additionally provided with one-way conduction valve 6, and one-way conduction valve 6 is provided with the projection 61 with inner chamber consistent with liquid flow direction. The middle part of protruding 61 offers the cross mouth 62 running through raised central portion. When applying external force along the protrusion direction of protruding 61, cross mouth is in opening, and fluid flows out; When applying external force along the opposite direction of protruding 61, cross mouth 62 is closed.

In the present embodiment, one-way conduction valve adopts silica gel.

In other are implemented, one-way conduction valve can also adopt PVC material.

During transfusion, liquid flows into the interior intracavity of protruding 61 by joint upper cover 2, and cross mouth 62 is applied external force by the fluid of interior intracavity, cross mouth 62 is opened under the effect of external force, liquid flows through projection, by, after the syringe needle that is directly or indirectly connected with joint screw thread lid 7, flowing to human body.

When transfusion terminates, put on the external force disappearance of protruding 61, cross mouth 62 is closed, now, reflux if any liquid, then protruding 61 are subject to reverse active force, under the effect of this external force, cross mouth 62 is closed, and the liquid of backflow cannot pass through protruding 62, such that it is able to function well as the effect preventing liquid from refluxing.

Embodiment 2

The present embodiment is substantially the same manner as Example 1, it is different in that, as shown in Figure 2, in order to the insoluble little microgranule in liquid and small glass fragment are filtered, ensure the safety of infusion process, arranging the first cushion rubber 3 and the second cushion rubber 5 in joint upper cover 2, and be provided with filter membrane 4 between the first cushion rubber 3 and the second cushion rubber 5, filter membrane adopts nylon material.

Offering filtering holes on filter membrane 4, the aperture of filtering holes is 1.0-6.0 micron, and percent opening is more than 90%, it is preferable that the aperture of filtering holes is 5 microns.

The filter membrane of this enforcement is preferably nylon, and nylon offers filtering holes. During filtration, effective passage of filter membrane is abundant, pollutant holding capability is big, good filtration effect, and the insoluble little microgranule in liquid and small glass fragment are not only filtered by the setting of filter membrane, and the percent opening of more than 90% ensure that the smoothness that liquid flows, it is ensured that the normal circulation of liquid.

When specifically applying, structure of the present utility model can be connected on infusion tube near the side of human body, to need to flow into the medicinal liquid of human body or blood are likely to containing impurity be filtered. Tee T can also be connected to, now, this structure be likely in medicinal liquid or blood containing impurity be filtered at the same time it can also be prevent medicinal liquid or backflow of blood, it is prevented that blood coagulation.

Additionally, this structure can also be arranged at the front end of syringe, to medicinal liquid is likely to containing glass fragment or insoluble little microgranule be filtered, it is ensured that the safety of infusion process.

Certainly, structure of the present utility model can also be attached in other way, plays the effect that the particulate matter in liquid or other solid impurities are filtered.

Preferred embodiment of the present utility model described in detail above. Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work. Therefore, all technical staff in the art pass through the available technical scheme of logical analysis, reasoning, or a limited experiment on the basis of existing technology according to design of the present utility model, all should in the protection domain being defined in the patent claims.

Claims

1. a transfusion device, at least includes screw-cap and joint screw thread lid, it is characterised in that also including joint upper cover, described joint upper cover is connected with described joint screw thread lid; The bottom of described joint upper cover is additionally provided with cushion rubber; The bottom of described cushion rubber is additionally provided with one-way conduction valve, and described one-way conduction valve is provided with the projection with inner chamber, and the protrusion direction of described projection is consistent with liquid flow direction, and described projection offers cross mouth; When applying external force along the direction consistent with the protrusion direction of described projection, described cross mouth is in opening, and fluid flows out; When applying external force along the protrusion direction opposite direction with described projection, described cross mouth is closed.

2. transfusion device as claimed in claim 1, it is characterised in that described cushion rubber includes the first cushion rubber and the second cushion rubber, is provided with filter membrane, described filter membrane offers filtering holes between described first cushion rubber and described second cushion rubber.

3. transfusion device as claimed in claim 2, it is characterised in that the aperture of the filtering holes on described filter membrane is 1.0-6.0 micron, and percent opening is more than 90%.

4. transfusion device as claimed in claim 3, it is characterised in that the aperture of the filtering holes on described filter membrane is 5 microns.

5. transfusion device as claimed in claim 4, it is characterised in that described filter membrane adopts nylon material.

6. the transfusion device as described in any one of claim 1 to 5, it is characterised in that described one-way conduction valve adopts PVC or silica gel material.