CN203971027U - Automatic vent stops liquid transfusion device - Google Patents

Abstract

The utility model discloses automatic vent and stop liquid transfusion device, bottle plug puncture unit (2) is sleeved on soft dropping funnel (5) through dropping funnel lid (2a), hard dropping funnel (6) is installed in the bottom of soft dropping funnel (5), the bottom of hard dropping funnel (6) connects transfusion catheter (11) one end, the other end of transfusion catheter (11) is through flow regulator (12) connecting tee (13), rubber cap (13a) is set on the dosing mouth of threeway (13), the other end of threeway (13) is by the transfusion catheter liquid injecting piece (14) of connecting successively, two-way screw joint (15) and intravenous needle (16), entirety forms safe transfusion system.This utility model automatic vent, automatically stops medicinal liquid and flows, and simplifies bleeding step, alleviates working strength, simple in structure, safe and reliable.

Description

Automatic vent stops liquid transfusion device

Technical field

This utility model relates to the aseptic medical equipment for clinical transfusion purposes, especially relates to a kind of transfusion device with automatic vent and automatic liquid-stopping function.

Background technology

At present, the conventional general infusion set of medical field is in the time that transfusion has just started, must be by manually squeezing dropping funnel, medicinal liquid could be introduced in dropping funnel from infusion bottle, enter from dropper the process of dropping funnel by pipeline at medicinal liquid, medicinal liquid is easily discharged the gas in dropping funnel downwards formation gas-liquid mixture and is entered in long transfusion catheter, therefore produce bubble, simultaneously, due to the surface tension effects of transfusion long duct inwall, at the easily a small amount of bubble of absorption of inwall of transfusion long duct, get rid of the comparatively difficulty of process of bubble, time-consuming and loaded down with trivial details, if bubble enters in patient body, easily cause the harm such as aeroembolism.So medical personnel, must be artificial by the emptying as much as possible of the bubble in transfusion device long duct before infusing, the process of artificial aerofluxus bubble is not only loaded down with trivial details but also time-consuming, in increasing medical personnel's working strength, is also unfavorable for promptly infusing and giving emergency treatment to a patient.

In clinical transfusion process, common medical personnel will look after the transfusion of patient in several wards, labor intensity is very large, usually occur failing to observe in time the infusion bottle inner liquid medicine phenomenon of not changing in time infusion bottle or extracting infusion needle of being totally lost because of medical personnel, patient or family numbers of patients, liquid level declines too low and causes gas to enter human body causing the adverse consequencess such as aeroembolism, brings heavy mental burden to medical personnel, patient or family numbers of patients.

Therefore,, in clinical transfusion operation, use a kind of safe transfusion system with automatic vent and automatic liquid-stopping function just particularly important.

Summary of the invention

The purpose of this utility model is: provide a kind of automatic vent to stop liquid transfusion device, can automatic vent in infusion process, and medicinal liquid will be by defeated automatic liquid-stopping to the greatest extent time, simple in structure, safe and reliable.

This utility model is achieved through the following technical solutions: this automatic vent stops liquid transfusion device and comprises protective sleeve, bottle plug puncture unit, soft dropping funnel, hard dropping funnel, transfusion catheter, flow regulator, threeway, liquid injecting piece, two-way screw joint and intravenous needle, bottle plug puncture unit is sleeved on soft dropping funnel through dropping funnel lid, hard dropping funnel is installed in the bottom of soft dropping funnel, the bottom of hard dropping funnel connects transfusion catheter one end, the other end of transfusion catheter is through flow regulator connecting tee, on the dosing mouth of threeway, rubber cap is set, the other end of threeway is by the transfusion catheter liquid injecting piece of connecting successively, two-way screw joint and intravenous needle, protective sleeve is sleeved on bottle plug puncture unit, entirety forms safe transfusion system, it is characterized in that: integrated injection molding dropping funnel lid, air inlet and steam vent on bottle plug puncture unit, air-filtering membrane is all installed in air inlet and steam vent and is sealed by air filtration cap, on hard dropping funnel inner bottom surface, medical filtration net is installed and is fixed by liquid medicine filter seat, floating plug is contained in hard dropping funnel, and the concave surface that latex cap is embedded in floating plug is interior relative with the infusion port of liquid medicine filter seat.

Wherein, the external diameter of described floating plug is more smaller than hard dropping funnel internal diameter, and the outside of floating plug is gear-like sidewall, and the top of floating plug is ball-type buffering convex surface, and the bottom of floating plug is concave surface.

Wherein, described latex cap is the latex ring that one side is provided with Emulsoid-film, and latex cap entirety plug is in the concave surface of floating plug, and Emulsoid-film is just to infusion port.

Wherein, the concave surface inwall of floating plug and latex cap joint have air channel, and air channel size ensures that under normal infusion state, medicinal liquid cannot enter floating plug cavity.

Wherein, in soft dropping funnel, arrange and only rise bank, floating plug is active in and only rises between bank and infusion port.

This utility model automatic vent; automatically stopping medicinal liquid flowing; simplify bleeding step, alleviate working strength, simple in structure; safe and reliable; both ensure the infuse safety of overall process of patient, alleviated again patient and medical worker's stress and operating pressure, reached the usefulness of vein safe infusion; be conducive to the treatment to clinical patients, this is for further minimizing and avoid the very positive meaning that has of malpractice.

Brief description of the drawings

Fig. 1 is overall structure schematic diagram of the present utility model.

Fig. 2 is the generalized section of automatic exhausting equipment.

Fig. 3 is the generalized section of automatic liquid-stopping structure.

Fig. 4 is the upward view of floating plug.

In figure: 1 protective sleeve, 2 bottle plug puncture units, 3 air filtration caps, 4 air-filtering membranes, 5 soft dropping funnels, 6 hard dropping funnels, 7 floating plugs, 8 latex caps, 9 liquid medicine filter seats, 10 medical filtration nets, 11 transfusion catheters, 12 flow regulators, 13 threeways, 14 liquid injecting pieces, 15 two-way screw joints, 16 intravenous needles, 2a dropping funnel lid, 2b air inlet, 2c steam vent, 5a only rise bank, 7a concave surface, 7b air channel, 8a Emulsoid-film, 9a infusion port, 13a rubber cap.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

As Figure 1-4, this automatic vent stops liquid transfusion device and comprises protective sleeve 1, bottle plug puncture unit 2, soft dropping funnel 5, hard dropping funnel 6, transfusion catheter 11, flow regulator 12, threeway 13, liquid injecting piece 14, two-way screw joint 15 and intravenous needle 16, bottle plug puncture unit 2 is sleeved on soft dropping funnel 5 through dropping funnel lid 2a, hard dropping funnel 6 is installed in the bottom of soft dropping funnel 5, the bottom of hard dropping funnel 6 connects transfusion catheter 11 one end, the other end of transfusion catheter 11 is through flow regulator 12 connecting tees 13, rubber cap 13a is set on the dosing mouth of threeway 13, the other end of threeway 13 is by the transfusion catheter liquid injecting piece 14 of connecting successively, two-way screw joint 15 and intravenous needle 16, protective sleeve 1 is sleeved on bottle plug puncture unit 2, entirety forms safe transfusion system, it is characterized in that: integrated injection molding dropping funnel lid 2a, air inlet 2b and steam vent 2c on bottle plug puncture unit 2, all install air-filtering membrane 4 and sealed by air filtration cap 3 in air inlet 2b and steam vent 2c, medical filtration net 10 fixing by liquid medicine filter seat 9 is installed on hard dropping funnel 6 inner bottom surfaces, and floating plug 7 is contained in hard dropping funnel 6, and the concave surface 7a that latex cap 8 is embedded in floating plug is interior relative with the infusion port 9a of liquid medicine filter seat.

As shown in Figure 3,4, the external diameter of described floating plug 7 is more smaller than hard dropping funnel 6 internal diameters, and the outside of floating plug is gear-like sidewall, and the top of floating plug is ball-type buffering convex surface, and the bottom of floating plug is concave surface 7a.

As shown in Figure 3, described latex cap 8 is for being simultaneously provided with the latex ring of Emulsoid-film 8a, and latex cap 8 entirety plugs are in the concave surface 7a of floating plug, and Emulsoid-film 8a is just to infusion port 9a.

As shown in Figure 4, the concave surface 7a inwall of floating plug and latex cap 8 joints have air channel 7b, and the size of air channel 7b ensures that medicinal liquid cannot enter floating plug cavity under normal infusion state.

As shown in Figure 1, the interior setting of soft dropping funnel 5 only rises bank 5a, and floating plug 7 is active in and only rises between bank 5a and infusion port 9a.

In the time that transfusion operation starts, first the air filtration cap 3 of steam vent 2c is opened, take off protective sleeve 1, bottle plug puncture unit 2 is inserted in infusion vessel bottle stopper, again the air filtration cap 3 of air inlet 2b is opened, medicinal liquid automatically enters in soft dropping funnel 5 under the effect of atmospheric pressure and self gravitation, first be dropped on the top ball-type buffering convex surface of floating plug 7 and be dispersed drain in the space of gear-like sidewall flows into hard dropping funnel 6, along with the accumulation gradually of medicinal liquid, automatically the gas of hard dropping funnel 6 bottoms is discharged by steam vent, simultaneously, floating plug 7 rises under the buoyancy of liquid, Emulsoid-film leaves binding face and automatically opens infusion port 9a, medicinal liquid flow through medical filtration net 10 enter again transfusion long duct 11 in, finally flow out from intravenous needle 16 needle tubing endoporus, automatically get rid of air in each parts, in the time that in dropping funnel, liquid level rises to certain altitude, close the air filtration cap 3 of steam vent 2c to keep certain liquid level, the vein that punctures according to a conventional method, is regulated and is dripped speed, normal infusion by actuator 12, among this process, also bubble-free sneaking in whole communication path, bubble can directly not enter in transfusion long duct 9 as general infusion set, thereby effectively prevents Bubble formation.

In the time that medicinal liquid is nearly totally lost, floating plug 7 is along with liquid level declines, while contact with infusion port 9a to Emulsoid-film 8a, under atmospheric pressure and floating plug 7 gravity pressures, Emulsoid-film 8a just tightly blocks infusion port 9a, make air not enter into the infusion pipeline under infusion port 9a, thereby prevent that air from entering patient's vein.

Above-mentioned only for explanation the technical solution of the utility model, and be not limitation of the utility model, those skilled in the art, in the case of not departing from the spirit and scope of utility model, can also make a variety of changes and modification, all technical schemes that are equal to also belong to category of the present utility model.

Claims (5)

1. automatic vent stops liquid transfusion device, it comprises protective sleeve (1), bottle plug puncture unit (2), soft dropping funnel (5), hard dropping funnel (6), transfusion catheter (11), flow regulator (12), threeway (13), liquid injecting piece (14), two-way screw joint (15) and intravenous needle (16), bottle plug puncture unit (2) is sleeved on soft dropping funnel (5) through dropping funnel lid (2a), hard dropping funnel (6) is installed in the bottom of soft dropping funnel (5), the bottom of hard dropping funnel (6) connects transfusion catheter (11) one end, the other end of transfusion catheter (11) is through flow regulator (12) connecting tee (13), rubber cap (13a) is set on the dosing mouth of threeway (13), the other end of threeway (13) is by the transfusion catheter liquid injecting piece (14) of connecting successively, two-way screw joint (15) and intravenous needle (16), protective sleeve (1) is sleeved on bottle plug puncture unit (2), entirety forms safe transfusion system, it is characterized in that: bottle plug puncture unit (2) upper integrated injection molding dropping funnel lid (2a), air inlet (2b) and steam vent (2c), air-filtering membrane (4) is all installed in air inlet (2b) and steam vent (2c) and is sealed by air filtration cap (3), medical filtration net (10) fixing by liquid medicine filter seat (9) is installed on hard dropping funnel (6) inner bottom surface, floating plug (7) is contained in hard dropping funnel (6), and the concave surface (7a) that latex cap (8) is embedded in floating plug is interior relative with the infusion port (9a) of liquid medicine filter seat.

2. automatic vent according to claim 1 stops liquid transfusion device, it is characterized in that: the external diameter of floating plug (7) is more smaller than hard dropping funnel (6) internal diameter, the outside of floating plug is gear-like sidewall, and the top of floating plug is ball-type buffering convex surface, and the bottom of floating plug is concave surface (7a).

3. automatic vent according to claim 1 stops liquid transfusion device, it is characterized in that: latex cap (8) is for being simultaneously provided with the latex ring of Emulsoid-film (8a), latex cap (8) entirety plug is in the concave surface (7a) of floating plug, and Emulsoid-film (8a) is just to infusion port (9a).

4. automatic vent according to claim 1 stops liquid transfusion device, it is characterized in that: concave surface (7a) inwall of floating plug and latex cap (8) joint have air channel (7b), and the size of air channel (7b) ensures that medicinal liquid cannot enter floating plug cavity under normal infusion state.

5. automatic vent according to claim 1 stops liquid transfusion device, it is characterized in that: in soft dropping funnel (5), arrange and only rise bank (5a), floating plug (7) is active in and only rises between bank (5a) and infusion port (9a).