CN202426981U

CN202426981U - Automatic liquid stop anti-blood-return self-destruct device for medical infusion set

Info

Publication number: CN202426981U
Application number: CN2011204982129U
Authority: CN
Inventors: 陈贤华
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-05
Filing date: 2011-12-05
Publication date: 2012-09-12
Anticipated expiration: 2021-12-05

Abstract

The utility model relates to an automatic liquid stop anti-blood-return self-destruct device for a medical infusion set. The automatic liquid stop anti-blood-return self-destruct device comprises an upper cover and a lower cover. A liquid inlet connecting tube is disposed at an opening at the top end of the upper cover. The lateral wall of the upper cover is provided with an exhaust passage. A liquid-stop filter film is arranged inside the exhaust passage. An exhaust cap having a self-destruct plug and a lateral cap is mounted outside the exhaust passage. The lateral cap is as large as the exhaust passage. A float support is fixedly mounted inside the upper cover, and a float is disposed in the float support. The lower cover is mounted at the bottom end of the upper cover. A liquid outlet tube is disposed in the lower cover. An upper opening of the liquid outlet tube is fitted inside the upper cover, and an opening of the liquid outlet tube corresponds to the float in position. A drainage strip is arranged at the bottom of the upper opening of the liquid outlet tube. The automatic liquid stop anti-blood-return self-destruct device has the advantages of simplicity in manufacturing process, reliability and convenience for use, easiness for manufacturing and formation, and greatly reduced production cost.

Description

The automatic solution stopping blood return prevention self-desttruction equipment of medical Transfusion device

Technical field

This utility model relates to a kind of automatic solution stopping blood return prevention self-desttruction equipment of medical Transfusion device.

Background technology

At present, the transfusion device of the automatic solution stopping blood return prevention of lot of domestic and international all is the device that a separate air is set in black Fei Shi pipe bottom, after medicinal liquid has flowed when transfusion; This device of China ink Fei Shi pipe bottom plays a role, and makes the downcomer water inlet seal automatically, can reach automatic solution stopping effect like this; And can't reach the effect of blood return prevention; But the debris that can cause thrombosis and downcomer like this can't flow and cause the waste medicinal liquid, and based on this reason, Chinese patent CN201814935U has adopted filter membrane solution stopping principle that filter cover is inserted black Fei Shi pipe bottom; Reach the effect of solution stopping relatively automatically; But,, also influence the effect of automatic solution stopping easily so the height of transfusion device is had a strong impact on owing to be the solution stopping principle of filter membrane; This patent is provided with a drainage strip reaches a spot of debris in black Fei Shi pipe bottom blood return prevention through the front end of the method introducing scalp acupuncture of syphon drainage effect simultaneously; The design ratio of this section drainage strip is easier to; Making this section drainage strip directly causes technology difficult with molding in black Fei Shi pipe bottom to the design in the filter; Manufacturing cost is relatively expensive, is difficult to into scale.

The utility model content

The purpose of this utility model provides a kind of automatic solution stopping blood return prevention self-desttruction equipment of medical Transfusion device, to overcome the deficiency of the above-mentioned aspect of existing product in the market.

The purpose of this utility model is to realize through following technical scheme:

A kind of automatic solution stopping blood return prevention self-desttruction equipment of medical Transfusion device comprises loam cake and lower cover, and port, said loam cake top is provided with into water connection tube; Have an exhaust passage on the loam cake sidewall; Be provided with the filter membrane that blocks water in the exhaust passage, the outside, exhaust passage is equipped with the exhaust cap that has type self-destroyed plug and side cover, and the size of this side cover is big or small corresponding with the exhaust passage; Said loam cake internal fixation is equipped with a buoy support, is provided with buoy in the buoy support; The loam cake bottom is equipped with lower cover, is provided with outlet pipe in the lower cover, and the port of outlet pipe is installed in the loam cake, and the port bottom of outlet pipe is provided with drainage strip, and said buoy support is made up of some tibias.

The beneficial effect of this utility model is: processing technology is simple, uses convenient and reliable, makes easy molding, can reduce production costs greatly.

Description of drawings

According to accompanying drawing this utility model is done further explain below.

Fig. 1 is the structural representation of the automatic solution stopping blood return prevention self-desttruction equipment of the described medical Transfusion device of this utility model embodiment;

Fig. 2 is the cutaway view of the automatic solution stopping blood return prevention self-desttruction equipment of the described medical Transfusion device of this utility model embodiment;

Fig. 3 is the explosive view of Fig. 2;

Fig. 4 is the automatic solution stopping blood return prevention self-desttruction equipment of the described medical Transfusion device of this utility model embodiment and cutaway view after perforator is connected;

Fig. 5 is the explosive view of Fig. 4;

Fig. 6 is the user mode figure one of the automatic solution stopping blood return prevention self-desttruction equipment of the described medical Transfusion device of this utility model embodiment;

Fig. 7 is that the automatic solution stopping blood return prevention self-desttruction equipment of the described medical Transfusion device of this utility model embodiment covers the cutaway view after being connected with black Fei Shi pipe;

Fig. 8 is the user mode figure two of the automatic solution stopping blood return prevention self-desttruction equipment of the described medical Transfusion device of this utility model embodiment;

Fig. 9 is the user mode figure three of the automatic solution stopping blood return prevention self-desttruction equipment of the described medical Transfusion device of this utility model embodiment.

Among the figure:

1, loam cake; 2, lower cover; 3, water inlet connection tube; 4, exhaust passage; 5, the filter membrane that blocks water; 6, type self-destroyed plug; 7, exhaust cap; 8, buoy; 9, buoy support; 10, outlet pipe; 11, drainage strip; 12, side cover; 13, perforator; 14, sheath; 15, black Fei Shi pipe.

The specific embodiment

Shown in Fig. 1-3, the automatic solution stopping blood return prevention self-desttruction equipment of the described medical Transfusion device of this utility model embodiment comprises loam cake 1 and lower cover 2; Port, said loam cake 1 top is provided with into water connection tube 3; Loam cake 1 left side has exhaust passage 4, be provided with in the exhaust passage 4 one can ultra-sonic welded the hydrophobic type filter membrane 5 that blocks water, 4 outsides, exhaust passage are equipped with the exhaust cap 7 that has type self-destroyed plug 6 and side cover 12; The size of this side cover 12 is big or small corresponding with exhaust passage 4; Said loam cake 1 internal fixation is equipped with a buoy support 9, is provided with mobilizable buoy 8 in the buoy support 9, and buoy 8 floats the extreme higher position of coming and is lower than exhaust passage 4 upper limbs; Loam cake 1 bottom is equipped with lower cover 2, is provided with outlet pipe 10 in the lower cover 2, and the port of outlet pipe 10 is installed in the loam cake 1, and the port of outlet pipe 10 bottom is provided with drainage strip 11; Said buoy support 9 is made up of many tibias.

The operation principle of this utility model is: when the type self-destroyed device of the described automatic solution stopping blood return prevention of this utility model is placed on any one position of medical Transfusion device China ink Fei Shi pipe lid above (containing black Fei Shi pipe lid); The medical Transfusion device that combines, his operation principle all are according to the realization of following description; When water inlet connection tube 3 passages of medicinal liquid through loam cake 1 got in this device, because buoy also is deposited in the port that lower cover 2 puts in outlet pipe 10 in the device 8 this moments, the passage of outlet pipe 10 was in closed condition; Simultaneously the passage of the exhaust passage 4 of loam cake 1 is in the state of opening, and medicinal liquid flows into the air that makes behind this utility model in the device under the effect of liquid flow extruding, discharges through exhaust passage 4; The effect of filter membrane 5 owing to block water; Medicinal liquid can not outwards flow out through exhaust passage 4, cover the upper limb of the filter membrane 5 that blocks water when medicinal liquid after, medicinal liquid is full of the device inner chamber; Make buoy 8 in buoy support 9, float; This moment, outlet pipe 10 passages were opened, and medicinal liquid flows into next passage of medical Transfusion device naturally, until normal infusion fully; After the medicinal liquid of water inlet connection tube 3 tops flow; buoy 8 can precipitate along with the decline of liquid level automatically; until the port of blocking outlet pipe 10, make all medicinal liquid complete agravities of automatic solution stopping blood return prevention self-desttruction equipment below of the described medical Transfusion device of this utility model, therefore reach the effect of automatic solution stopping; the debris of port below that meanwhile puts in the outlet pipe 10 of intracavity flows in the outlet pipe 10 through bottom drainage strip 11 lentamente; pass through infusion pipeline inflow human vas until at last, keep the normal infusion state for a long time, reach the effect of blood return prevention; As long as medical Transfusion device perforator 12 is inserted in the infusion bottle,, make medicinal liquid still can work on when changing the bottle transfusion according to present principles because the passage of the steam vent 4 of loam cake 1 is unimpeded; After transfusion finishes, still have a large amount of debris in the whole medical Transfusion device, complete in order to infuse; Only need the type self-destroyed plug on the exhaust cap 67 is covered the position that inclined to one side buoy 8 was worn out and pushed up to the filter membranes 5 that will block water in the intake and exhaust channels 4; The air duct of liquid top is thoroughly opened, caused losing of medicinal liquid to make its state that is in complete agravity, medicinal liquid is under the effect of gravity; Reach to greatest extent and flowed, make medical Transfusion device reach the effect of self-destruction simultaneously.

Concrete occupation mode is following:

Shown in Fig. 4-6, the water inlet connection tube 3 of the automatic solution stopping blood return prevention self-desttruction equipment of the described medical Transfusion device of this utility model with can form the type self-destroyed medical Transfusion device of automatic solution stopping blood return prevention after the outlet of medical Transfusion device perforator 13 is connected; Open sheath 14; Perforator 13 is inserted in the infusion bottle; Medicinal liquid flows into the type self-destroyed device of automatic solution stopping blood return prevention in the perforator 13, and medicinal liquid flows out perforator 13 backs according to above-mentioned operation principle and flows to the vein needle point along whole transfusion device pipeline, reaches the effect of automatic solution stopping blood return prevention self-destruction subsequently.

Shown in Fig. 7-8, also can form the type self-destroyed medical Transfusion device of automatic solution stopping blood return prevention after the loam cake connection of the lower cover 2 of the automatic solution stopping blood return prevention self-desttruction equipment of the described medical Transfusion device of this utility model with black Fei Shi pipe 15; During concrete operations, medical Transfusion device perforator 13 is inserted infusion bottle, be inverted black Fei Shi pipe 15; Medicinal liquid is owing to the effect of gravity flows in the type self-destroyed black Fei Shi pipe of automatic solution stopping blood return prevention; Medicinal liquid flows into water-retention in the black Fei Shi pipe 15 at last according to above-mentioned operation principle, and water-retention is behind 1/2-2/3 place of black Fei Shi pipe 15, and the black Fei Shi that overturns manages 15 messenger drug liquid stream and goes into ductule until intravenous needle; The transfusion of can puncturing reaches the effect of automatic solution stopping blood return prevention self-destruction.

As shown in Figure 9, the automatic solution stopping blood return prevention self-desttruction equipment of the described medical Transfusion device of this utility model also can be placed on the some positions of medical Transfusion device upper conduit separately and form the type self-destroyed medical Transfusion device of automatic solution stopping blood return prevention; During its concrete operations; Medicinal liquid was in conduit flows into this utility model after perforator 13 inserted infusion bottles, and medicinal liquid flows out this device until flowing into black Fei Shi pipe 15, downcomer then, flows into intravenous needle at last; Get final product normal infusion, reach the effect of automatic solution stopping blood return prevention self-destruction.

This utility model is not limited to above-mentioned preferred forms; Anyone can draw other various forms of products under the enlightenment of this utility model; No matter but on its shape or structure, do any variation; Every have identical with a application or akin technical scheme, all drops within the protection domain of this utility model.

Claims

1. the automatic solution stopping blood return prevention self-desttruction equipment of a medical Transfusion device; Comprise loam cake (1) and lower cover (2); It is characterized in that: said loam cake (1) port, top is provided with into water connection tube (3), has exhaust passage (4) on the sidewall of loam cake (1), is provided with the filter membrane that blocks water (5) in exhaust passage (4); Outside, exhaust passage (4) is equipped with the exhaust cap (7) that has type self-destroyed plug (6) and side cover (12); The size of this side cover (12) is big or small corresponding with exhaust passage (4), and said loam cake (1) internal fixation is equipped with a buoy support (9), is provided with buoy (8) in the buoy support (9); Loam cake (1) bottom is equipped with lower cover (2), is provided with outlet pipe (10) in the lower cover (2), and the port of outlet pipe (10) is installed in the loam cake (1), and the port of outlet pipe (10) bottom is provided with drainage strip (11).

2. the automatic solution stopping blood return prevention self-desttruction equipment of a medical Transfusion device, it is characterized in that: said buoy support (9) is made up of some tibias.