CN105477750A - Disposable automatic liquid-stop infusion apparatus - Google Patents
Disposable automatic liquid-stop infusion apparatus Download PDFInfo
- Publication number
- CN105477750A CN105477750A CN201610019305.6A CN201610019305A CN105477750A CN 105477750 A CN105477750 A CN 105477750A CN 201610019305 A CN201610019305 A CN 201610019305A CN 105477750 A CN105477750 A CN 105477750A
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- China
- Prior art keywords
- liquid
- buoyancy
- stop
- dropping funnel
- single use
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
- A61M5/40—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body using low-level float-valve to cut off media flow from reservoir
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
Abstract
The invention relates to an automatic liquid-stop infusion apparatus. A safety mechanism of the automatic liquid-stop infusion apparatus comprises a buoyancy liquid-stop device in a drip chamber body. The buoyancy liquid-stop device is composed of a floating body, a double-fold reverse-T-shaped liquid sealing part and a connection part. The connection part and the double-fold reverse-T-shaped liquid sealing part are installed in a matched mode. A silica gel pad material with adsorbability is adopted for a sealing membrane of the double-fold reverse-T-shaped liquid sealing part, and the double-fold reverse-T-shaped liquid sealing part has an excellent sealing effect and is used for supplementing the liquid-stop function. The diameter of a liquid-stop column core of the double-fold reverse-T-shaped liquid sealing part is matched with the caliber of a pipe opening of a liquid outlet, the liquid-stop column core is used for plugging the liquid outlet and is combined with the sealing membrane to achieve the dual-liquid-stop effect. When infused liquid is about to run out, the buoyancy liquid-stop device then sinks to plug and close the liquid outlet of the infusion apparatus while the liquid level in the infusion apparatus falls, and therefore the liquid-stop effect is achieved. The automatic liquid-stop infusion apparatus is reasonable in design and principle, simple in structure, easy to machine and capable of being widely assembled on existing infusion apparatuses, a safety protection function is added to the infusion apparatuses, and the safe infusion effect is achieved.
Description
Technical field:
The present invention relates to a kind of disposable medical apparatus, specifically a kind of single use automatic liquid-stopping transfusion apparatus.
Background technology:
As everyone knows, China promotes the use of common disposable infusion set from the 1980s, so far the history of existing more than 30 year, to preventing cross infection from serving positive role in clinical transfusion; But common disposable infusion set also exists certain weak point: when transfusion completes or transfusion group replaces, air easily enters in infusion tube, if process not in time, air input human body will have an impact to the healthy of patient; Also increase the weight of the nursery work intensity of medical worker simultaneously, easily cause doctor-patient dispute; Therefore people expect to have a safer more effectively good product, make numerous medical workers and patient relieved, safety; In order to solve above-mentioned technical problem, prior art as propose some technical schemes as:
China Patent No. discloses a kind of safe transfusion system for " CN200810048699 ", and this transfusion device is used for the venous transfusion in medicine and hygiene fields; This transfusion device is made up of tube for transfusion, funnel and syringe needle, tube for transfusion is connected with syringe needle with funnel respectively, and wherein release mechanism comprises the plastic foam ball float in funnel, when the liquid stream in funnel is complete, the liquid outlet of its lower portion will be blocked by ball float, reaches the object of safe handling.
China Patent No. " 200320129365.1 " discloses a kind of single use pressure-keeping infusion device, and this transfusion device is used for the venous transfusion in medicine and hygiene fields; This transfusion device is by needle for inserting bottle, flexible pipe, flow regulator, liquid medicine filter, venoclysis needle, dropping funnel and release mechanism composition, wherein release mechanism includes wine bucket lower curtate a protruding medicinal liquid access road, there is a locating part dropping funnel middle and lower part, has a buoyancy aid therebetween, and buoyancy aid is embedded with the diaphragm that a latex is made with other soft material.
China Patent No. discloses a kind of safe transfusion system for " CN201120280062 ", and this transfusion device is used for the venous transfusion in medicine and hygiene fields; This transfusion device is made up of the feed tube be linked in sequence, Murphy's burette and drain pipe, wherein release mechanism includes lower end is cone shape Murphy's burette, the float corresponding with its lower end shape is provided with in Murphy's burette, the diameter of float maximum cross section is greater than the internal diameter of drain pipe, and the density of float is less than medicinal liquid density.When having medicinal liquid in Murphy's burette, float is suspended in liquid level, and decline with liquid level decline float, when medicinal liquid drips sky, float is just in time positioned at Murphy's burette lower end, cuts off the path of Murphy's burette and drain pipe, effectively prevents air from entering in patient body.Therefore, transfusion device of the present invention can, by means of the buoyancy aid self-closed infusion pipeline in release mechanism, prevent air bubble from entering patient's vein.
Above-mentioned patent is the following some shortcomings of ubiquity in actual applications: one be buoyancy aid with the sealing between the medicine liquid outlet of the medicine liquid outlet bottom dropping funnel or housing bottom is all rely on seal membrane to carry out contacting sealing in plane, when seal membrane and buoyancy aid inside exist certain space, easily produce bubble when infusing alternately; Two is fill in stifled formula method when stopping liquid, and the required precision at the medicine liquid outlet fitted seal place bottom buoyancy aid and dropping funnel is high, and existing production technology is difficult to reach hermetic requirement, causes sealing reliability not high, and safety is low; Three is when stopping liquid with film phonograph seal formula method, because seal membrane is for realizing effective environmental sealing export department so must design thinner, makes easily to pierce through diaphragm because of the jag of the export department of medicinal liquid in practice, causing sealing.
Summary of the invention:
The object of the invention is can not enter human body in order to liquid or air can be controlled when liquid is totally lost in infusion bottle and can blood backflow be prevented, realize the object of safe infusion, a kind of single use automatic liquid-stopping transfusion apparatus is provided.
The present invention adopts following technical scheme to realize its goal of the invention: a kind of single use automatic liquid-stopping transfusion apparatus, it is made up of bottle plug puncture unit 1, dropper 2, dropping funnel 3, flexible pipe 4, flow regulator 5, liquid medicine filter 6, union joint 7, venoclysis needle 8, wherein dropping funnel 3 by dropping funnel upper cover 3-1, dropping funnel body 3-2, dropping funnel subiculum 3-3, buoyancy stops liquid device 3-4, locating part 3-5 forms; Bottle plug puncture unit 1 is connected with venoclysis needle 8 by dropper 2, dropping funnel 3, flexible pipe 4, flow regulator 5, liquid medicine filter, union joint 7; Dropping funnel upper cover 3-1 is provided with feed tube 3-1-1, medicine feeding hole 3-1-2, and dropping funnel subiculum 3-3 is provided with liquid outlet 3-3-1, liquid outlet 3-3-2; Dropping funnel body 3-2 interior lower end is provided with a locating part 3-5, is provided with buoyancy and stops liquid device 3-4 between the bottom of locating part 3-5 and the top of liquid outlet 3-3-2.
The present invention folds the mounting limit function of convex sealing liquid parts 3-4-2 in order to realize pairing, pairing is folded convex sealing liquid parts 3-4-2 and is designed to crown 3-4-2-1, seal membrane 3-4-2-2, only fluid column core 3-4-2-3 tri-parts; And for crown 3-4-2-1 on top, seal membrane 3-4-2-2 at middle part, pairing that only fluid column core 3-4-2-3 installs in bottom folds convex shape structure.
The present invention is in order to realize link 3-4-3 and pairing folds the function that convex sealing liquid parts 3-4-2 agrees with installation, the crown 3-4-2-1 that pairing is folded on convex sealing liquid parts 3-4-2 can be provided with inner fovea part, for being inserted in link 3-4-3, also solid protuberance can be provided with, protuberance is for inserting link 3-4-3 endoporus in-core, make pairing fold convex sealing liquid parts 3-4-2 to be combined as a whole parts with buoyancy aid 3-4-1, reach the effect of fixing buoyancy aid 3-4-1 and only liquid.
The present invention folds the sealing function of convex sealing liquid parts 3-4-2 in order to realize pairing, the edge that pairing folds the seal membrane 3-4-2-2 of convex sealing liquid parts 3-4-2 is given prominence to and can cover liquid outlet, can be designed to translate into sky pot shape on inlet 3-1-1 direction, also can be and translate into umbrella shape under liquid outlet 3-3-2 direction, in order to sealing aerofluxus; Its material is preferably the silicagel pad material manufacture of adsorptivity, has excellent sealing function, realizes automatic liquid-stopping, for supplementing only liquid effect; Pairing fold the only fluid column core 3-4-2-3 diameter of convex sealing liquid parts 3-4-2 and the liquid outlet 3-3-2 mouth of pipe greatly small-bore adapting coordinate, for blocking liquid outlet 3-3-2, only fluid column core 3-4-2-3 and seal membrane 3-4-2-2 combination realizes fluid shutoff, thus reaches the effect of dual only liquid.
The present invention ensures the function of medicinal liquid normal through buoyancy aid 3-4-1 to realize in infusion process, be provided with liquid bath 3-4-1-1 and flow-passing surface 3-4-1-2; What edge, buoyancy aid 3-4-1 top established 2-8 bar not wait crosses liquid bath 3-4-1-1; Every bar is crossed liquid bath 3-4-1-1 lower end and is provided with a flow-passing surface 3-4-1-2; When liquid by flow-passing surface to dropping funnel subiculum 3-3 bottom surface, recoil is returned to be formed recoil strength and is impelled buoyancy to stop liquid device 3-4 to float then, and what during to prevent from changing bottle, shutoff tension caused can not recover transfusion situation; Accelerated liquid bath 3-4-1-1 and can be the difformities such as U-shaped, I shape, linear, flow-passing surface 3-4-1-2 can be circular arc, the difformity such as square; Because crossing the difform change of liquid bath 3-4-1-1 and flow-passing surface 3-4-1-2, make buoyancy aid 3-4-1 also should have other difformity mutually.
The present invention limits to realize the position that buoyancy stops liquid device 3-4, and the function making it fluctuate, is provided with locating part 3-5; Locating part 3-5 is located at dropping funnel body 3-3 interior lower end; Buoyancy aid 3-4 is between locating part 3-5 bottom and the top of liquid outlet 3-3-2.
Owing to have employed above technical scheme, the present invention achieves its goal of the invention preferably, this single use automatic liquid-stopping transfusion apparatus, take and insert the liquid outlet mouth of pipe at only fluid column core and block up the sealing that liquid and the seal membrane flexibility parcel liquid outlet mouth of pipe combine and stop liquid design, thus avoid simple blocking only liquid gas leakage and film phonograph seal stop the ill effect that liquid easily breaks, formation dual safety stops the effect of liquid.Buoyancy aid upper part sidewall devised liquid bath as medicine liquid channel simultaneously, every bar is crossed liquid bath lower end and is provided with a flow-passing surface, when changing transfusion group, squeezes dropping funnel, liquid by flow-passing surface to dropping funnel subiculum bottom surface, then recoil return to be formed recoil strength make buoyancy stop liquid device float; Buoyancy stops the lifting of liquid device with liquid level, and under the restriction of locating part, upper and lower vertical float, prevents the deviation that swings, and both effectively can cushion the vibration in ambulatory infusion, also avoids parts to collide and stir clear liquor wearing the adverse consequences come; When medicine bottle herb liquid drips off, when medicinal liquid liquid level in dropping funnel is down to the face, place of seal membrane, liquid outlet can be blocked, reach automatic liquid-stopping object, improve the safety coefficient of transfusion, alleviate the nursery work intensity of medical worker, and the lines of strain and fear emotion of patient, realize infusing safely and effectively.
Accompanying drawing illustrates:
Accompanying drawing 1 is overall structure schematic diagram of the present invention.
Accompanying drawing 2 is cross-sectional view of labelling 3 of the present invention.
Accompanying drawing 3 be labelling 3 of the present invention cut structural representation open.
Accompanying drawing 4 is mounting structure generalized sections of labelling 3-1 of the present invention, 3-2,3-3 and 3-5.
Accompanying drawing 5 is structural representations of labelling 3-4 of the present invention.
Accompanying drawing 6A is the cross-sectional view of labelling 3-4 of the present invention.
Accompanying drawing 6B is that the pairing of labelling 3-4 of the present invention folds the different cross-sectional view of convex sealing liquid parts.
Accompanying drawing 7 is structural representations that labelling 3-4 buoyancy of the present invention stops 3-4-1,3-4-3 in liquid device.
Accompanying drawing 8 is cross-sectional view that labelling 3-4 buoyancy of the present invention stops 3-4-1,3-4-3 in liquid device.
Accompanying drawing 9 is structural representations of labelling 3-4-2 of the present invention.
Accompanying drawing 10A is the cross-sectional view of labelling 3-4-2 of the present invention.
Accompanying drawing 10B is the different cross-sectional view of the seal membrane of labelling 3-4-2 of the present invention.
Accompanying drawing 11 be labelling 3-5 of the present invention cut structural representation open.
Description of reference numerals is shown in description last page form.
Detailed description of the invention:
Below in conjunction with accompanying drawing, summary of the invention is described further:
Embodiment 1:
From summary of the invention, a kind of single use automatic liquid-stopping transfusion apparatus, it is made up of bottle plug puncture unit 1, dropper 2, dropping funnel 3, flexible pipe 4, flow regulator 5, liquid medicine filter 6, union joint 7, venoclysis needle 8, and wherein dropping funnel 3 is made up of dropping funnel upper cover 3-1, dropping funnel body 3-2, dropping funnel subiculum 3-3, buoyancy aid 3-4, locating part 3-5; Bottle plug puncture unit 1 is connected with venoclysis needle 8 by dropper 2, dropping funnel 3, flexible pipe 4, flow regulator 5, liquid medicine filter 6, union joint 7; Dropping funnel upper cover 3-1 is provided with inlet 3-1-1 and medicine feeding hole 3-1-2, and dropping funnel subiculum 3-3 is provided with fluid joint 3-3-1 and liquid outlet 3-3-2; Dropping funnel body 3-2 interior lower end is provided with a locating part 3-5, is provided with buoyancy and stops liquid device 3-4 between the bottom of locating part 3-5 and the top of liquid outlet 3-3-2; Buoyancy stop liquid device 3-4 by link 3-4-3, pairing fold convex sealing liquid parts 3-4-2 and with liquid bath 3-4-1-1, flow-passing surface 3-4-1-2 buoyancy aid 3-4-1 form.
Bottle plug puncture unit 1 of the present invention, dropper 2, dropping funnel 3, flexible pipe 4, flow regulator 5, liquid medicine filter 6, union joint 7, venoclysis needle 8 are the conventional arrangement components of transfusion device.
Dropping funnel 3 of the present invention is security function features of this transfusion device, and described security function feature is that inside is provided with and can controls liquid when liquid is totally lost in infusion bottle or air can not enter human body and can prevent the safe control of blood backflow.
Dropping funnel upper cover 3-1 of the present invention refers to: the upper cover of dropping funnel 3; And on upper cover 3-1, be provided with inlet 3-1-1, medicine feeding hole 3-1-2; When its effect is transfusion, liquid enters the injectable drug of kettle body and safe ready; As shown in Figure 2, it cuts structure open as shown in Figure 3 to its cross-section structure, and its design attitude is as shown in labelling 3-1 in accompanying drawing 2,3,4.
Inlet 3-1-1 of the present invention refers to: be located at the feed tube on dropping funnel upper cover 3-1; Its effect is the flexible pipe that liquid enters dropping funnel; Its design attitude is as shown in labelling 3-1-1 in accompanying drawing 2,3.
Medicine feeding hole 3-1-2 of the present invention refers to: be located at the dosing mouth on dropping funnel upper cover 3-1; Its effect is can the injectable drug of safe ready; Its design attitude is as shown in labelling 3-1-2 in accompanying drawing 2,3.
Dropping funnel body 3-2 of the present invention refers to: the pipe shaft of dropping funnel 3; Load bearing fluid when its effect is transfusion; Its design attitude is as shown in labelling 3-2 in accompanying drawing 2,3,4,11.
Dropping funnel subiculum 3-3 of the present invention refers to: going to the bottom of dropping funnel 3; And be provided with fluid joint 3-3-1, liquid outlet 3-3-2 thereon; Its effect is the position and the medicine liquid outlet that limit buoyancy aid 3-4; As shown in Figure 2, it cuts structure open as shown in Figure 3 to its cross-section structure, and its design attitude is as shown in labelling 3-3 in accompanying drawing 2,3,4.
Buoyancy of the present invention stops liquid device 3-4 and refers to: by link 3-4-3, pairing fold convex sealing liquid parts 3-4-2 and with liquid bath 3-4-1-1, flow-passing surface 3-4-1-2 buoyancy aid 3-4-1 form; Float normal infusion when its effect is transfusion, liquid or air can be controlled when liquid is totally lost and can not enter human body and can blood backflow be prevented; As shown in Figure 2, it cuts structure open as shown in Figure 3 to its cross-section structure, and its design attitude is as shown in labelling 3-4 in accompanying drawing 2,3.
Fluid joint 3-3-1 of the present invention refers to: be located at the drain pipe bottom dropping funnel subiculum 3-3; Its effect is liquid from dropping funnel flexible pipe out; Its design attitude is as shown in labelling 3-3-1 in accompanying drawing 2,3.
Liquid outlet 3-3-2 of the present invention refers to: the liquid medicine flow passages of dropping funnel subiculum 3-3 projection, connects the interior pipe of fluid on fluid joint 3-3-1 top; Its effect is when having infused, and stops liquid device 3-4 adapt and coordinate, for blocking liquid outlet 3-3-2 with buoyancy.
Embodiment 2:
The present invention folds the mounting limit function of convex sealing liquid parts 3-4-2 in order to realize pairing, pairing is folded convex sealing liquid parts 3-4-2 and is designed to crown 3-4-2-1, seal membrane 3-4-2-2, only fluid column core 3-4-2-3 tri-parts; And for crown 3-4-2-1 on top, seal membrane 3-4-2-2 at middle part, pairing that only fluid column core 3-4-2-3 installs in bottom folds convex shape structure.
Pairing of the present invention is folded convex sealing liquid parts 3-4-2 and is referred to: buoyancy stops the device that liquid device 3-4 bottom realizes sealing effectiveness; Which is provided with crown 3-4-2-1, seal membrane 3-4-2-2, only fluid column core 3-4-2-3; Its effect coordinates liquid outlet 3-3-2 to form hermetically-sealed construction; As shown in Figure 9, its cross-section structure is as shown in accompanying drawing 10A, 10B for its structure; Its design attitude as accompanying drawing 2,3,5, shown in 6A, 6B labelling 3-4-2.
Embodiment 3:
The present invention is in order to realize link 3-4-3 and pairing folds the function that convex sealing liquid parts 3-4-2 agrees with installation, the crown 3-4-2-1 that pairing is folded on convex sealing liquid parts 3-4-2 can be provided with inner fovea part, for being inserted in link 3-4-3, also solid protuberance can be provided with, protuberance is for inserting link 3-4-3 endoporus in-core, make pairing fold convex sealing liquid parts 3-4-2 to be combined as a whole parts with buoyancy aid 3-4-1, reach the effect of fixing buoyancy aid 3-4-1 and only liquid.
Crown 3-4-2-1 of the present invention refers to: pairing folds the upper strata of convex sealing liquid parts 3-4-2, link 3-4-3 is inserted in or inserts in its effect, make pairing fold convex sealing liquid parts 3-4-2 to be combined as a whole parts with buoyancy aid 3-4-1, reach the effect of fixing buoyancy aid 3-4-1 and only liquid; Its design attitude is as shown in labelling 3-4-2-1 in accompanying drawing 9,10A, 10B.
Embodiment 4:
The present invention folds the sealing function of convex sealing liquid parts 3-4-2 in order to realize pairing, the edge that pairing folds the seal membrane 3-4-2-2 of convex sealing liquid parts 3-4-2 is given prominence to and can cover liquid outlet, can be designed to translate into sky pot shape on inlet 3-1-1 direction, also can be and translate into umbrella shape under liquid outlet 3-3-2 direction, in order to sealing aerofluxus; Its material is preferably the silicagel pad material manufacture of adsorptivity, has excellent sealing function, realizes automatic liquid-stopping, for supplementing only liquid effect; Pairing fold the only fluid column core 3-4-2-3 diameter of convex sealing liquid parts 3-4-2 and the liquid outlet 3-3-2 mouth of pipe greatly small-bore adapting coordinate, for blocking liquid outlet 3-3-2, only fluid column core 3-4-2-3 and seal membrane 3-4-2-2 combination realizes fluid shutoff, thus reaches the effect of dual only liquid.
Seal membrane 3-4-2-2 of the present invention refers to: pairing folds the face in the middle part of convex sealing liquid parts 3-4-2, and its effect has excellent sealing function, realizes automatic liquid-stopping, for supplementing only liquid effect; Its design attitude is as shown in labelling 3-4-2-2 in accompanying drawing 9,10A, 10B.
Only fluid column core 3-4-2-3 of the present invention refers to: pairing folds the bottom of convex sealing liquid parts 3-4-2, its effect adapts with liquid outlet 3-3-2 to coordinate, for blocking liquid outlet 3-3-2, only fluid column core 3-4-2-3 and seal membrane 3-4-2-2 combination realizes fluid shutoff, reaches the effect of dual only liquid; Its design attitude is as shown in labelling 3-4-2-3 in accompanying drawing 10A, 10B.
Embodiment 5:
The present invention ensures the function of medicinal liquid normal through buoyancy aid 3-4-1 to realize in infusion process, be provided with liquid bath 3-4-1-1 and flow-passing surface 3-4-1-2; What edge, buoyancy aid 3-4-1 top established 2-8 bar not wait crosses liquid bath 3-4-1-1; Every bar is crossed liquid bath 3-4-1-1 lower end and is provided with a flow-passing surface 3-4-1-2; When liquid by flow-passing surface to dropping funnel subiculum 3-3 bottom surface, recoil is returned to be formed recoil strength and is impelled buoyancy to stop liquid device 3-4 to float then, and what during to prevent from changing bottle, shutoff tension caused can not recover transfusion situation; Accelerated liquid bath 3-4-1-1 and can be the difformities such as U-shaped, I shape, linear, flow-passing surface 3-4-1-2 can be circular arc, the difformity such as square; Because crossing the difform change of liquid bath 3-4-1-1 and flow-passing surface 3-4-1-2, make buoyancy aid 3-4-1 also should have other difformity mutually.
The liquid bath 3-4-1-1 that crosses of the present invention refers to: be located at edge, buoyancy aid 3-4 top; Its effect be ensure in infusion process medicinal liquid normal through; Its design attitude is as shown in labelling 3-4-1-1 in accompanying drawing 5,6A, 6B, 7,8.
Flow-passing surface 3-4-1-2 of the present invention refers to: be located at liquid bath 3-4-1-1 lower end; Its effect be when liquid by flow-passing surface to dropping funnel subiculum 3-3 bottom surface, then recoil and return to be formed recoil strength and make buoyancy stop liquid device 3-4 to float; Its design attitude is as shown in labelling 3-4-1-2 in attached 5,6A, 6B, 7,8.
Embodiment 6:
The present invention limits to realize the position that buoyancy stops liquid device 3-4, and the function making it fluctuate, is provided with locating part 3-5; Locating part 3-5 is located at dropping funnel body 3-3 interior lower end; Buoyancy aid 3-4 is between locating part 3-5 bottom and the top of liquid outlet 3-3-2.
Locating part 3-5 of the present invention refers to: the position-limited rack being arranged on dropping funnel body 3-3 interior lower end; Its effect limits the position that buoyancy stops liquid device 3-4, makes it fluctuate; It cuts structure open as shown in Figure 11, and its design attitude is as shown in labelling 3-5 in accompanying drawing 2,3,4,11.
| Reference numerals | Labelling title | Reference numerals | Labelling title |
| 1 | Bottle plug puncture unit 1 | 3-4-1-2 | Flow-passing surface 3-4-1-2 |
| 2 | Dropper 2 | 3-4-2 | Pairing folds convex sealing liquid parts 3-4-2 |
| 3 | Dropping funnel 3 | 3-4-2-1 | Crown 3-4-2-1 |
| 3-1 | Dropping funnel upper cover 3-1 | 3-4-2-2 | Seal membrane 3-4-2-2 |
| 3-1-1 | Inlet 3-1-1 | 3-4-2-3 | Only fluid column core 3-4-2-3 |
| 3-1-2 | Medicine feeding hole 3-1-2 | 3-4-3 | Link 3-4-3 |
| 3-2 | Dropping funnel body 3-2 | 3-5 | Locating part 3-5 |
| 3-3 | Dropping funnel subiculum 3-3 | 4 | Flexible pipe 4 |
| 3-3-1 | Fluid joint 3-3-1 | 5 | Flow regulator 5 |
| 3-3-2 | Liquid outlet 3-3-2 | 6 | Liquid medicine filter 6 |
| 3-4 | Buoyancy stops liquid device 3-4 | 7 | Union joint 7 |
| 3-4-1 | Buoyancy aid 3-4-1 | 8 | Venoclysis needle 8 |
| 3-4-1-1 | Cross liquid bath 3-4-1-1 |
Claims (10)
1. a single use automatic liquid-stopping transfusion apparatus, comprise bottle plug puncture unit (1), dropper (2), dropping funnel (3), flexible pipe (4), flow regulator (5), liquid medicine filter (6), union joint (7), venoclysis needle (8), it is characterized in that dropping funnel (3) is made up of dropping funnel upper cover (3-1), dropping funnel body (3-2), dropping funnel subiculum (3-3), buoyancy aid (3-4), locating part (3-5); Described bottle plug puncture unit (1) is connected with venoclysis needle (8) by dropper (2), dropping funnel (3), flexible pipe (4), flow regulator (5), liquid medicine filter (6), union joint (7); Described dropping funnel upper cover (3-1) is provided with inlet (3-1-1), medicine feeding hole (3-1-2), and dropping funnel subiculum (3-3) is provided with fluid joint (3-3-1), liquid outlet (3-3-2); Be provided with buoyancy between the bottom of described locating part (3-5) and the top of liquid outlet (3-3-2) and stop liquid device (3-4); Described buoyancy stops liquid device (3-4) and folds convex sealing liquid parts (3-4-2) by buoyancy aid (3-4-1), pairing, consists of link (3-4-3).
2. a kind of single use automatic liquid-stopping transfusion apparatus according to claim 1, it is characterized by described buoyancy to stop liquid device and be provided with pairing and fold convex sealing liquid parts (3-4-2), pairing is folded convex sealing liquid parts (3-4-2) and is formed pairing folded convex shape structure by crown (3-4-2-1), seal membrane (3-4-2-2), only fluid column core (3-4-2-3).
3. a kind of single use automatic liquid-stopping transfusion apparatus according to claim 2, is characterized by described buoyancy and stops buoyancy aid (3-4-1) in liquid device (3-4) and be provided with liquid bath (3-4-1-1), flow-passing surface (3-4-1-2).
4. a kind of single use automatic liquid-stopping transfusion apparatus according to Claims 2 or 3, it is characterized by described buoyancy and stop the crown (3-4-2-1) of liquid device (3-4) for being provided with inner fovea part, for being inserted in link (3-4-3), make pairing fold convex sealing liquid parts (3-4-2) to be combined as a whole parts with buoyancy aid (3-4-1), reach the effect of fixing buoyancy aid (3-4-1) and only liquid.
5. a kind of single use automatic liquid-stopping transfusion apparatus according to Claims 2 or 3, it is characterized by the crown that described buoyancy stops liquid device (3-4) and be provided with solid protuberance, protuberance is for inserting link (3-4-3) endoporus in-core, make pairing fold convex sealing liquid parts (3-4-2) to be combined as a whole parts with buoyancy aid (3-4-1), reach the effect of fixing buoyancy aid (3-4 1) and only liquid.
6. a kind of single use automatic liquid-stopping transfusion apparatus according to claim 2, it is characterized by described buoyancy, to stop the edge of the seal membrane (3-4-2-2) of liquid device (3-4) outstanding and can cover liquid outlet.
7. a kind of single use automatic liquid-stopping transfusion apparatus according to claim 6, it is characterized by the seal membrane (3-4-2-2) that described buoyancy stops liquid device (3-4) and a pot shape can be translated on inlet (3-1-1) direction, also can be and translate into umbrella shape under liquid outlet (3-3-2) direction.
8. a kind of single use automatic liquid-stopping transfusion apparatus according to claim 2, it is characterized by described buoyancy and stop the only fluid column core (3-4-2-3) of liquid device (3-4) for cylindrical, only fluid column core (3-4-2-3) diameter and liquid outlet (3-3-2) mouth of pipe greatly small-bore adapting coordinate, for blocking liquid outlet (3-3-2).
9. a kind of single use automatic liquid-stopping transfusion apparatus according to claim 3, is characterized by buoyancy aid (3-4-1) and established liquid bath (3-4-1-1) and flow-passing surface (3-4-1-2); What buoyancy aid (3-4-1) edge, top established 2-8 bar not wait crosses liquid bath (3-4-1-1); Every bar is crossed liquid bath (3-4-1-1) lower end and is provided with a flow-passing surface (3-4-1-2), liquid by flow-passing surface (3-4-1-2) to dropping funnel subiculum (3-3) bottom surface, then recoil return to be formed recoil strength make buoyancy stop liquid device (3-4) be convenient to float.
10. a kind of single use automatic liquid-stopping transfusion apparatus according to claim 1, is characterized by dropping funnel body (3-2) interior lower end and establishes a locating part (3-5); Described locating part (3-5) limits the position that buoyancy stops liquid device (3-4), makes it fluctuate.
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| CN106860949A (en) * | 2017-02-28 | 2017-06-20 | 朱保群 | Automatic liquid-stopping transfusion apparatus |
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