CN100579595C - Self-closing safety transfusion system - Google Patents
Self-closing safety transfusion system Download PDFInfo
- Publication number
- CN100579595C CN100579595C CN200710014798A CN200710014798A CN100579595C CN 100579595 C CN100579595 C CN 100579595C CN 200710014798 A CN200710014798 A CN 200710014798A CN 200710014798 A CN200710014798 A CN 200710014798A CN 100579595 C CN100579595 C CN 100579595C
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- self
- transfusion
- flat plastic
- liquid
- plastic barrel
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Abstract
The invention provides a self-closing safe transfusion machine after transfusion is finished. It is characterized in that it takes flexible nontoxic plastic membrane to produce one flat plastic tube, then packs it on protection sleeve made from hard plastic and produces a self-closing device. Said device is connected to upper part of murphy ' s dropper of transfusion machine. The liquid can enter into lower conduit for transfusion through flat plastic tube, and when the transfusion is finished, the flat plastic tube will close automatically under atmospheric pressure, and the liquid below will stop flowing. The device is characterized by reasonable design, simple structure, simple production, and wide application in current transfusion machine.
Description
Affiliated technical field
The present invention relates to a kind of intravenous transfusion device that is applied to medical field, particularly a kind of flexible plastic film that utilizes carries out self-enclosed safe transfusion system.
Background technology
At present; the intravenous transfusion device that is applied to medical field by transfusion catheter, be connected in formations such as the intermediary Murphy tube of conduit, speed regulator and venoclysis needle; this kind transfusion device lacks the necessary security defencive function; in infusion process, need nursing staff, patient and family numbers of patients to observe liquid situation in the bottle at any time, in order to avoid when transfusion finishes, cause blood back or conduit and transfusion needle disconnection are carried out adverse consequencess such as the air emptying pollutes because of liquid level low need that descended because of in time not pulling out infusion needle.About existing a lot of the patent design in safe transfusion system aspect, but up to the present, there also do not have a kind of product to be widely used in to be clinical, and its reason mainly is that its design principle and material selection, manufacturing cost and processing technique aspect exist a certain distance.
Summary of the invention
The present invention be for solve existing transfusion device in infusion process, lacks deficiency, medical personnel or the patient of safety guarantee and heavy, the various solution of family members' mental burden implement problems such as difficulty is big and provide a kind of simple in structure, safe and reliable can be at the medicinal liquid transfusion device that the back seals automatically of being totally lost.
The present invention is realized by following technical scheme, specifies as follows:
Above the Murphy tube of a whole set of transfusion device; a self-packer is set; self-packer is made up of inside and outside two parts; the flexiplast tube of a flat of being made by very thin non-toxic plastic film is set in the device; the equal welding in two ends up and down of flat plastic barrel or be bonded with two pass joints that connect to go up downcomer; under untapped state; the both sides thin film of flat plastic barrel fits together substantially; the outside of flat plastic barrel is provided with the protective sleeve made from rigid plastics; the two ends of protective sleeve respectively lead to two of flat plastic barrel two ends carries out welding or bonding; it is become one; the mid portion of protective sleeve is designed to flat equally; the inner flat plastic barrel of only giving stays space by liquid; with guarantee liquid by the time pass through with flat state equally; on protective sleeve, have simultaneously passage; air in order to the outside can enter in the protective sleeve; another critical function of passage is just in case the flat plastic barrel in the protective sleeve breaks or leakage; liquid can flow out in passage, just can observe and can take other to take precautions against remedial measure from the outside rapidly.
In use, when liquid moves from top to bottom, the flat plastic barrel can suitably open becomes passage, liquid can waltz through that plastic barrel enters following Murphy tube and conduit carries out normal infusion, as the air containment in the need adjustment Murphy tube, the same with traditional method, the extruding Murphy tube can make air enter in the top infusion bottle by the flat plastic barrel equally, because this moment, the flat plastic barrel all was up and down a liquid, formed an airtight space, therefore the degree of opening of flat plastic barrel can be along with the adjustment how much and automatically of fluid flow, liquid in bottle is totally lost gradually, when the liquid of self-packer top reduces gradually, the flat plastic barrel also can be gradually sealing, residual liquid can form the film that one deck seals gradually between two layers of plastic thin films simultaneously, can help two layers of plastic thin films better closed, and this moment, the liquid below the self-packer still had the strength that flows downward, thereby form negative pressure between flat plastic barrel and the liquid level below it, the flat plastic barrel can be closed together more closely under atmospheric pressure.Because the flat plastic barrel is made with flexible material, if after this its top does not have new liquid to enter, the flat plastic barrel can keep air-tight state always.This structure Design has effectively utilized the characteristics that flat tubular article that flexible plastic material makes can auto-closing under atmospheric pressure, automatic closes ducts after medicinal liquid is totally lost, thus also just guaranteed the safety of infusion process effectively.In when transfusion, in the connection behind the infusion bottle, if the flat plastic barrel break or leak, leakage, liquid can flow out in passage, can find rapidly at that time.Because this moment, transfusion needle did not also enter patient's vein blood vessel, therefore only need at once more that the transducer set transfusion device gets final product, to patient without any influence.This kind problem generally can only occur in when just having begun to connect infusion bottle, this kind problem can not take place in infusion process because the insufficient pressure of liquid flow so that the flat plastic barrel break.
This device can reduce medical personnel's working strength, removes the worry of patient in infusion process, has processing rational in infrastructure, easy, safe and reliable characteristics, can be widely used in clinical.
Description of drawings
Fig. 1 is the orthophoric position structural representation of flat plastic barrel of the present invention.
Fig. 2 is the side-looking bit architecture sketch map of flat plastic barrel of the present invention.
Fig. 3 is the orthophoric position structural representation of the self-packer of band protective sleeve of the present invention.
Fig. 4 is a self-packer side-looking bit architecture sketch map of the present invention.
Fig. 5 is the utilization structure sketch map of self-sealing safe transfusion system of the present invention.
Among the figure, the 1st, the flat plastic barrel, the 2nd, heat seal of flat plastic barrel and bonding position, 3 is two logical, 4 is two logical center protrusion portions; the 5th, self-packer protective sleeve, the 6th, passage, the 7th, protective sleeve groove, the 8th, infusion bottle; the 9th, self-packer, the 10th, conduit, the 11st, Murphy tube, the 12nd, speed regulator.
The specific embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention:
By Fig. 1 and Fig. 2 as can be seen; at first with the non-toxic plastic film thermal synthesis flat plastic barrel 1 of flexibility; then the two ends of flat plastic barrel 1 respectively hot melt or bonding on two non-toxic plastics make two logical 3; in the middle of two logical 3 two logical center protrusion portions 4; can embed in the protective sleeve groove 7, two logical 3 effect is to connect downcomer 10 respectively.Under the situation that does not have liquid to enter; the thin film of flat plastic barrel 1 both sides fits together substantially; the Design of length of flat plastic barrel 1 is in the self-packer protective sleeve 5 of packing into that can it is suitably lax; width is designed to leave enough spaces passes through liquid; after being encapsulated in it in self-packer protective sleeve 5; can protect flat plastic barrel 1 not to be subjected to external force to involve and destroy, it can be opened in self-packer protective sleeve 5 freely with closed.Certain position at self-packer protective sleeve 5; be equipped with a plurality of passages interlinked with the outside 6; can play the effect that extraneous air enters; its another critical function is; when if the flat plastic barrel 1 of portion breaks leakage within it; liquid can flow out from passage 6, promptly can observe easily outside also to adopt remedial measures in time.
Working condition by Fig. 5 brief description self-sealing safe transfusion system: during use, liquid by in the infusion bottle 8 under flow in the self-packer 9, flat plastic barrels 1 in the self-packer 9 can flow of liquid fashionable open and by its enter Murphy tube 11 and below conduit 9, carry out normal infusion.How much can controlling of amount of infusion by regulating speed regulator 12.Undesirable, still the same as the air containment in the Murphy tube 11 with traditional method, regulate by extruding Murphy tube 11.When the liquid in the infusion bottle 8 is totally lost gradually, flat plastic barrel 1 meeting auto-closing under atmospheric pressure in the self-packer 9, owing to there be not entering of air, the liquid of self-packer 9 belows can stop to flow gradually, thereby guaranteed can not produce adverse consequencess such as blood back, changed infusion bottle 8 as need, still the same with traditional method, after having changed infusion bottle 8, just normal infusion again.
Claims (1)
1, a kind of self-closing safety transfusion system; form by self-packer, Murphy tube, conduit, speed regulator; it is characterized in that: the two ends that its self-packer is made by a flexible non-toxic plastic film of usefulness have the protective sleeve that two logical flat plastic barrels and rigid plastics make and form, and then it are installed at the top of the Murphy tube in a whole set of transfusion device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710014798A CN100579595C (en) | 2007-05-30 | 2007-05-30 | Self-closing safety transfusion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710014798A CN100579595C (en) | 2007-05-30 | 2007-05-30 | Self-closing safety transfusion system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101057982A CN101057982A (en) | 2007-10-24 |
| CN100579595C true CN100579595C (en) | 2010-01-13 |
Family
ID=38864383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710014798A Expired - Fee Related CN100579595C (en) | 2007-05-30 | 2007-05-30 | Self-closing safety transfusion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100579595C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114145893A (en) * | 2021-12-03 | 2022-03-08 | 杭州糖吉医疗科技有限公司 | Swallowable intragastric water balloon and preparation method and set thereof |
| CN114247006B (en) * | 2022-01-20 | 2024-02-20 | 上海协贮智能科技服务有限公司 | Infusion apparatus capable of automatically stopping liquid and preventing blood return |
-
2007
- 2007-05-30 CN CN200710014798A patent/CN100579595C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101057982A (en) | 2007-10-24 |
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