Safe burette type transfusion apparatus
Technical field
This utility model relates to the aseptic medical equipment for clinical transfusion purposes, especially relating to one has when transfusion completes nearly, automatic plugging dropping funnel liquid outlet, make infusion pipeline liquid stop flowing, prevent the safe burette type transfusion apparatus of single use that air enters in patient body and body inner blood refluxes.
Background technology
In clinical transfusion process, usual medical personnel will look after the transfusion of patient in several ward, labor intensity is very large, usually occur that failing to observe in time infusion bottle inner liquid medicine because of medical personnel, patient or family numbers of patients has been totally lost and does not change infusion bottle in time or extract the phenomenon of infusion needle, liquid level declines too low and causes gas to enter human body causing the adverse consequencess such as aeroembolism, bring heavy mental burden to medical personnel, patient or family numbers of patients.Therefore, in clinical transfusion operation, use a kind of safe burette type transfusion apparatus with automatic liquid-stopping function just particularly important.
Summary of the invention
The purpose of this utility model is: provide a kind of disposable safe burette type transfusion apparatus, structure is simple, safe and reliable, the automatic plugging infusion unit titrimeter liquid outlet when transfusion nearly completes, the medicinal liquid in the infusion pipeline of liquid outlet lower end is made to stop flowing, thus automatically terminate transfusion, reach and prevent air from entering in patient body and the backflow of body inner blood, ensure safe infusion.
This utility model is achieved through the following technical solutions: this safe burette type transfusion apparatus comprises protective sleeve, bottle plug puncture unit, feed liquor conduit, only liquid actuator, suspender belt, calparine cap, drip cylinder upper cover, drip cylinder, drip cylinder lower cover, micro pipette, dropping funnel, only drop bucket, transfusion catheter, flow regulator, threeway, two-way screw joint and joint cap, feed liquor tube at one end is connected bottom bottle plug puncture unit, the other end of feed liquor conduit is connected with a cylinder upper cover through stopping liquid actuator, dripping cylinder upper cover is sleeved on a cylinder, drip bottom cylinder and a cylinder lower cover is installed, dripping cylinder lower cover is sleeved on dropping funnel, only drop bucket is installed in the bottom of dropping funnel, only the bottom of drop bucket connects transfusion catheter one end, the other end of transfusion catheter is through flow regulator connecting tee, the other end of threeway connects two-way screw joint by transfusion catheter, joint cap is sleeved on two-way screw joint, protective sleeve is sleeved on bottle plug puncture unit, the safe burette type transfusion apparatus of overall formation, it is characterized in that: floating plug is contained in and stops in drop bucket, the interior infusion port with stopping drop bucket of concave surface that silica gel cap is embedded in floating plug is relative.
Wherein, the external diameter of described floating plug is than only drop bucket internal diameter is smaller, 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 silica gel cap is the falope ring that one side is provided with silica gel thin film, and silica gel cap entirety plug is in the concave surface of floating plug, and silica gel thin film is just to infusion port.
Wherein, concave surface inwall and the silica gel cap joint of floating plug have air channel, and under air channel size ensures normal infusion state, medicinal liquid cannot enter floating plug cavity.
Wherein, arrange in dropping funnel and only rise bank, floating plug is active in and only rises between bank and infusion port.
Further technical scheme of the present utility model is: medical filtration Netcom crosses high frequency heat seal and is fixed in liquid medicine filter lid and is arranged on only on drop bucket inner bottom surface together; Floating plug is contained in only in drop bucket, relative with the infusion port of liquid medicine filter seat in the concave surface that silica gel cap is embedded in floating plug, it is characterized in that: liquid medicine filter lid is funnel type and forming with infusion port integrated injection molding.
This utility model is on the basis of common single use burette type transfusion apparatus, gear-like plastics (also can be other a material) floating plug is placed in its dropping funnel, the silica gel cap that floating plug and the liquid outlet place of closing have a flexible medical silica gel to make, during transfusion, liquid flows into dropping funnel from the space of gear-like floating plug, floating plug rises under the buoyancy of liquid, automatically liquid outlet is opened, realize infusion process, when infusing close to when completing, floating plug declines along with liquid level, when contacting to silica gel cap with liquid outlet, under atmospheric pressure and floating plug gravity pressure, flexible silicon Capsule lid just tightly blocks liquid outlet, transfusion catheter under making air not enter into liquid outlet, thus prevent air from entering human body and the backflow of body inner blood, realize safe infusion, this for reduce further and avoid malpractice there is very positive meaning.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is automatic liquid-stopping burette structural representation.
Fig. 3 is the automatic liquid-stopping burette structural representation of embodiment two of the present utility model.
Fig. 4 is the upward view of floating plug.
In figure: 1 protective sleeve, 2 bottle plug puncture units, the air inlet of 3 band air filters and cap, 4 feed liquor conduits, 5 stop liquid actuator, 6 suspender belts, 7 calparine caps, the air vent of 8 band air filters and cap, 9 cylinder upper covers, 10 cylinders, 11 cylinder lower covers, 12 micro pipettes, 13 dropping funnels, 14 stop drop bucket, 15 floating plugs, 16 silica gel caps, 17 transfusion catheters, 18 flow regulators, 19 threeways, 20 two-way screw joints, 21 joint caps, 22 medical filtration nets, 23 medical filtration nets, 13a only rises bank, 14a infusion port, 15a concave surface, 15b air channel, 16a silica gel thin film, 2A bottle plug puncture unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
As Figure 1-4, this safe burette type transfusion apparatus comprises protective sleeve 1, bottle plug puncture unit 2, feed liquor conduit 4, only liquid actuator 5, suspender belt 6, drip cylinder upper cover 9, drip cylinder 10, drip cylinder lower cover 11, micro pipette 12, dropping funnel 13, transfusion catheter 17, flow regulator 18, threeway 19, two-way screw joint 20 and joint cap 21, feed liquor conduit 4 one end is connected bottom bottle plug puncture unit 2, the other end of feed liquor conduit 4 is connected with a cylinder upper cover 9 through stopping liquid actuator 5, dripping cylinder upper cover 9 is sleeved on a cylinder 10, drip bottom cylinder 10 and a cylinder lower cover 11 is installed, dripping cylinder lower cover 11 is sleeved on dropping funnel 13, only drop bucket 14 is installed in the bottom of dropping funnel 13, only the bottom of drop bucket 14 connects transfusion catheter 17 one end, the other end of transfusion catheter 17 is through flow regulator 18 connecting tee 19 and two-way screw joint 20 successively, joint cap 21 is sleeved on two-way screw joint 20, protective sleeve 1 is sleeved on bottle plug puncture unit 2, the safe burette type transfusion apparatus of overall formation, it is characterized in that: floating plug 15 is contained in and stops in drop bucket 14, the interior infusion port 14a with stopping drop bucket of concave surface 16a that silica gel cap 16 is embedded in floating plug is relative.
As shown in Figure 2, the external diameter of described floating plug 15 is than only drop bucket 14 internal diameter is smaller, and the outside of floating plug 15 is gear-like sidewall; Top is ball-type buffering convex surface; Bottom is concave surface.
As shown in Figure 2, described silica gel cap 16 is the falope ring that one side is provided with silica gel thin film 16a, and silica gel cap 16 entirety plug is in the concave surface 15a of floating plug, and silica gel thin film 16a is just to infusion port 14a.
As shown in Figure 2,4, concave surface inwall and the silica gel cap joint of floating plug have air channel 15b, and under air channel 15b size ensures normal infusion state, medicinal liquid cannot enter floating plug cavity.
As shown in Figure 1, arrange in dropping funnel 13 and only rise bank 13a, floating plug is active in and only rises between bank 13a and infusion port 14a.
As shown in Figure 3, further technical scheme of the present utility model is: medical filtration net 23 is fixed in liquid medicine filter lid 22 to be arranged on together by high frequency heat seal and stops on drop bucket 14 inner bottom surface; Floating plug 15 is contained in only in drop bucket 14, relative with the infusion port of liquid medicine filter seat in the concave surface 16a that silica gel cap 16 is embedded in floating plug, it is characterized in that: liquid medicine filter lid 22 is funnel type and forming with infusion port integrated injection molding.
As shown in Figure 2,3, the capacity of burette comprises 50ml, 100ml, 150ml.
When transfusion operation starts, first take off protective sleeve 1, bottle plug puncture unit 2 is inserted in infusion vessel bottle stopper, again the cap of air inlet 3 is opened, medicinal liquid automatically enters only in drop bucket 5 under the effect of atmospheric pressure and self gravitation, the top ball-type being first dropped in floating plug 15 cushions on convex surface and is stopped in drop bucket 14 by dispersion drain through the inflow of the space of gear-like sidewall, along with the accumulation gradually of medicinal liquid, comparatively medicinal liquid is light for the density of the plastic material that floating plug 15 adopts due to it, rise under the buoyancy of liquid, silica gel thin film 16a leaves binding face and automatically opens infusion port 14a, medicinal liquid flows through medical filtration net 23 and enters in transfusion long duct 17 again, finally flow out from pin hole, air in each parts of automatic eliminating, when medicinal liquid is nearly totally lost, floating plug 15 is along with liquid level decline, when contacting to silica gel thin film 16a with infusion port 14a, under atmospheric pressure and floating plug 15 gravity pressure, silica gel thin film 16a just tightly blocks infusion port 14a, infusion pipeline under making air not enter into infusion port 14a, thus prevent air from entering patient's vein and the backflow of body inner blood.
Above-mentioned only for the technical solution of the utility model is described, and be not limitation of the utility model, those skilled in the art, when not departing from the spirit and scope of utility model, can also make a variety of changes and modification, all equivalent technical schemes also belong to category of the present utility model.