CN203777407U

CN203777407U - Vein transfusion set

Info

Publication number: CN203777407U
Application number: CN201420083495.4U
Authority: CN
Inventors: 马春娥
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-02-22
Filing date: 2014-02-22
Publication date: 2014-08-20
Anticipated expiration: 2024-02-22

Abstract

The utility model provides a vein transfusion set and belongs to the technical field of medical instruments. The vein transfusion set comprises a puncture device, an upper transfusion hose, a dripping cup, a lower transfusion hose, a flow speed regulator, a medicine liquid filter and a vein needle; the vein transfusion set has the structural characteristics that an exhaust port is formed in the upper side of the dripping cup; a pair of convex annular pieces are fixedly arranged at the inner wall of the middle upper part of the dripping cup; a medicine liquid filter film is fitted between the convex annular pieces; the lower part of the dripping cup is funnelshaped; a water drop-shaped floating pendant capable of floating up and down is arranged in the inner cavity at the lower part of the dripping cup; the lower end of the dripping cup is connected with the upper end port of a tee pipe; the side end port of the tee pipe is connected with a liquid storage bag filled with sterilized liquid by a switch; the lower end port of the tee pipe is connected with the lower transfusion hose. The vein transfusion set is reasonable in design, safe, reliable, convenient to operate and capable of transfusing medicine liquid into a human body vein as much as possible without wasting the medicine liquid.

Description

A kind of intravenous transfusion device

Technical field

This utility model belongs to technical field of medical instruments, relates to particularly a kind of intravenous transfusion device.

Background technology

Intravenous transfusion device is widely used in clinical transfusion, and the intravenous transfusion device using is at present generally main to be connected to form by perforator, infusion tube, a kettle, flow regulator, liquid medicine filter, intravenous needle.Venous transfusion principle is the intrinsic pressure principle of pressing higher than human vein of transfusion system of utilizing atmospheric pressure and fluid pressure to form, in direct liquid afferent veins.In the time that transfusion closes on end, the position of the liquid level counterpart in infusion tube reduces gradually, and fluid pressure reduces gradually, and blood backflow phenomenon can occur intrinsic pressure being close to or higher than when human vein is pressed of transfusion system.For preventing that blood backflow phenomenon occurs in infusion process, in prior art, common intravenous transfusion device is improved, set up back-flow preventer, liquid in the infusion tube of back-flow preventer below is retained, stop blood backflow and air to enter vein blood vessel, will exist like this medicinal liquid retaining in the infusion tube of back-flow preventer below can not input human vein, thereby cause the technical problem of liquid waste, affect the therapeutic effect of transfusion.

Summary of the invention

The purpose of this utility model is to overcome the deficiency that above-mentioned prior art exists, and provides a kind of safe and reliable, easy to operate, thereby medicinal liquid as far as possible all can be inputted to the avoid waste intravenous transfusion device of medicinal liquid of human vein.

Task of the present utility model is achieved through the following technical solutions, a kind of intravenous transfusion device, comprise perforator 1, upper infusion tube 2, drip kettle 3, lower infusion tube 7, flow regulator 8, liquid medicine filter 9, intravenous needle 10, its construction features is to drip on kettle 3 to survey and be provided with air vent 11, drip on the inwall of kettle 3 middle and upper parts and be installed with a pair of bulge loop sheet 12, between bulge loop sheet 12, laminating is fixed with a medicinal liquid filter membrane 13, dripping kettle 3 bottoms is infundibulate, is provided with the floating pendant 14 of the drops that can fluctuate in kettle 3 lower lumen; Drip kettle 3 lower ends and be connected with tee T 4 upper port, tee T 4 side ports connect the in-built reservoir 6 that has sterile liquid and vacuum through switch 5, and tee T 4 lower port connect lower infusion tube 7.

In air vent 11, have exhaust gas filter film, the ventilation of exhaust gas filter film is waterproof, and liquid can not outwards flow out from air vent 11, realizes continuous exhaust pneumatic wallop.

The diameter on floating pendant 14 tops is greater than the internal diameter that drips kettle 3 lower end liquid outlets, and the diameter of floating pendant 14 bottoms is less than the internal diameter that drips Pot 3 lower end liquid outlets, and when floating pendant 14 falls, effectively kettle 3 lower end liquid outlet automatic cut outs are dripped in shutoff, prevent that gas from entering vein and blood backflow.

The liquid outlet place of reservoir 6 is provided with non-return valve, can prevent that liquid is to reservoir 6 internal reflux.

The quantity outline of the interior storage liquid of reservoir 6 is more than the quantity that can retain medicinal liquid sum total in tee T 4 and lower infusion tube 7.

Good effect of the present utility model is: reasonable in design, safe and reliable, easy to operate, thus medicinal liquid as far as possible all can be inputted to the human vein medicinal liquid that avoids waste.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model

In figure: 1-perforator, the upper infusion tube of 2-, 3-drips kettle, 4-tee T, 5-switch, 6-reservoir, infusion tube under 7-, 8-flow regulator, 9-liquid medicine filter, 10-intravenous needle, 11-air vent, 12-bulge loop sheet, 13-medicinal liquid filter membrane, the floating pendant of 14-.

Detailed description of the invention

Be described with reference to the accompanying drawings the details of a kind of intravenous transfusion device the utility model proposes.

As shown in Figure 1, a kind of intravenous transfusion device, comprises perforator 1, upper infusion tube 2, drips kettle 3, lower infusion tube 7, flow regulator 8, liquid medicine filter 9, intravenous needle 10.Drip on kettle 3 and survey and be provided with air vent 11, have exhaust gas filter film in air vent 11, the ventilation of exhaust gas filter film is waterproof, and liquid can not outwards flow out from air vent 11, thereby realizes continuous exhaust pneumatic wallop, drip on the inwall of kettle 3 middle and upper parts and be installed with a pair of bulge loop sheet 12, between bulge loop sheet 12, laminating is fixed with a medicinal liquid filter membrane 13, medicinal liquid filter membrane 13 adopts the hydrophilic filter film of the extremely strong breathability extreme difference of multilamellar infiltration effect to make, when dry, can ventilate, after humidity because the surface tension effects of liquid can seep water but stop gas to pass through, make its filtering liquid medicine simultaneously, can effectively avoid infusion process to have bubble to enter vein, dripping kettle 3 bottoms is infundibulate, drip and be provided with the floating pendant 14 of the drops that can fluctuate in kettle 3 lower lumen, the diameter on floating pendant 14 tops is greater than the internal diameter that drips kettle 3 lower end liquid outlets, the diameter of floating pendant 14 bottoms is less than the internal diameter that drips kettle 3 lower end liquid outlets, when floating pendant 14 is fallen, effectively kettle 3 lower end liquid outlet automatic cut outs are dripped in shutoff, prevent that gas from entering vein and blood backflow, and due to the design of medicinal liquid filter membrane 13, can stop floating pendant 14 to float up to and drip kettle 3 tops, thereby avoid occurring that the situation that kettle 3 inlet feed liquors are dripped in floating pendant 14 impacts occurs, dripping kettle 3 lower ends is connected with tee T 4 upper port, tee T 4 side ports connect the in-built reservoir 6 that has sterile liquid and vacuum through switch 5, the liquid outlet place of reservoir 6 is provided with non-return valve, can prevent that liquid is to reservoir 6 internal reflux, the quantity outline of the interior storage liquid of reservoir 6 is more than the quantity that can retain medicinal liquid sum total in tee T 4 and lower infusion tube 7, like this when transfusion closes on end, need squeeze out the interior liquid of reservoir 6 to tee T 4 and lower infusion tube 7 interior pressure transfusion time, the medicinal liquid that can ensure to be retained in tee T 4 and lower infusion tube 7 can be input in human vein as much as possible, medicinal liquid avoids waste, tee T 4 lower port connect lower infusion tube 7.

When operation, press daily rule of operation to patient infusion, in infusion process, the unnecessary gas dripping in kettle 3 can be discharged through air vent 11, and transfusion closes on while end, dripping the interior liquid level of kettle 3 reduces gradually, floating pendant 14 falls along with liquid level declines, until block the liquid outlet that drips kettle 3, the now interior meeting of tee T 4 and lower infusion tube 7 reserve part medicinal liquid also keeps relatively static, stop blood backflow and air to enter vein, can take precautions against the generation of malpractice.Before medical personnel's withdrawal of needle, open switch 5, extruding reservoir 6 presses to tee T 4 to its pressurization by the sterile liquid of reservoir 6 interior storages, now shutoff is dripped kettle 3 liquid outlets at the floating pendant 14 that drips kettle 3 liquid outlets because the pressure of liquid leaves, and float with liquid, recover transfusion, the medicinal liquid of tee T 4 and the 7 interior reservations of lower tube for transfusion is transported to vein, avoid liquid waste, guarantee infusion treatment effect, floating pendant 14 falls along with liquid level declines, and again blocks the liquid outlet that drips kettle 3, stop blood backflow and air to enter vein, now medical personnel's withdrawal of needle.

Claims

1. an intravenous transfusion device, comprise perforator (1), upper infusion tube (2), drip kettle (3), lower infusion tube (7), flow regulator (8), liquid medicine filter (9), intravenous needle (10), it is characterized in that dripping upper survey of kettle (3) and be provided with air vent (11), drip on the inwall of kettle (3) middle and upper part and be installed with a pair of bulge loop sheet (12), between bulge loop sheet (12), laminating is fixed with a medicinal liquid filter membrane (13), dripping kettle (3) bottom is infundibulate, drip and be provided with the floating pendant of drops (14) that can fluctuate in kettle (3) lower lumen, dripping kettle (3) lower end is connected with tee T (4) upper port, tee T (4) side ports connects the in-built reservoir (6) that has sterile liquid and vacuum through switch (5), and tee T (4) lower port connects lower infusion tube (7).

2. a kind of intravenous transfusion device according to claim 1, is characterized in that having exhaust gas filter film in air vent (11).

3. a kind of intravenous transfusion device according to claim 1, the diameter that it is characterized in that floating pendant (14) top is greater than the internal diameter that drips kettle (3) lower end liquid outlet, and the diameter of floating pendant (14) bottom is less than the internal diameter that drips kettle (3) lower end liquid outlet.

4. a kind of intravenous transfusion device according to claim 1, is characterized in that the liquid outlet place of reservoir (6) is provided with non-return valve.

5. a kind of intravenous transfusion device according to claim 1, is characterized in that the quantity outline that stores liquid in reservoir (6) is more than the quantity that can retain medicinal liquid sum total in tee T (4) and lower infusion tube (7).