CN109010986A - Liquid infusion apparatus is matched in a kind of filtering of safe and convenient - Google Patents

Liquid infusion apparatus is matched in a kind of filtering of safe and convenient Download PDF

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Publication number
CN109010986A
CN109010986A CN201810810592.1A CN201810810592A CN109010986A CN 109010986 A CN109010986 A CN 109010986A CN 201810810592 A CN201810810592 A CN 201810810592A CN 109010986 A CN109010986 A CN 109010986A
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China
Prior art keywords
tube
liquid
needle
liquid bag
infusion apparatus
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810810592.1A
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Chinese (zh)
Inventor
季晓晓
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Lishui City Peoples Hospital
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Lishui City Peoples Hospital
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Priority to CN201810810592.1A priority Critical patent/CN109010986A/en
Publication of CN109010986A publication Critical patent/CN109010986A/en
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2006—Piercing means
    • A61J1/201—Piercing means having one piercing end
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2048—Connecting means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2079—Filtering means
    • A61J1/2086—Filtering means for fluid filtration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2089—Containers or vials which are to be joined to each other in order to mix their contents
    • 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
    • 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
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • 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
    • A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
    • 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
    • A61M2005/1401—Functional features
    • 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
    • A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
    • A61M2005/1657—Filter with membrane, e.g. membrane, flat sheet type infusion filter

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention discloses a kind of filterings of safe and convenient to match liquid infusion apparatus, it is main to match liquid bag, mixed liquid bag, perfusion tube and needle head structure with liquid bag, second including first, first upper/lower terminal with liquid bag is connected separately with the first inlet tube and the first outlet tube, and the second upper/lower terminal with liquid bag is connected separately with the second inlet tube and the second outlet tube；Outlet tube derailing switch is equipped on first outlet tube and the second outlet tube；The lower end of first outlet tube and the lower end of the second outlet tube cross, and are connected with the inlet of mixed liquid bag, and the liquid outlet of mixed liquid bag is connected with perfusion tube；The end of perfusion tube is needle head structure；Needle head structure includes syringe needle, the needle-covering cap being sheathed on outside syringe needle and the connector for being fixedly connected with needle-covering cap with perfusion tube；On perfusion tube, liquid medicine filter is equipped in a small distance above needle head structure.The present invention accurately, conveniently, can carry out secondary filter to medical fluid, syringe needle exposed will not be polluted and be injured after the completion of infusion with liquid.

Description

Liquid infusion apparatus is matched in a kind of filtering of safe and convenient
Technical field
The present invention relates to a kind of filterings of safe and convenient to match liquid infusion apparatus, belongs to field of medical products.
Background technique
Infusion apparatus is that a kind of dosage is big, is ceased using wide Dispoable medical utensil, and with our daily life Correlation, infusion sometimes, which needs to mix different drugs, is defeated by patient, however some drugs cannot mix for a long time, can only It mixes and reuses before infusion, progress drug hybrid manipulation is more troublesome before infusion, is unfavorable for emergency rescue.
Application No. is a kind of infusion apparatus is disclosed in the invention of 201620402354 .3, which includes: that upper infusion is soft Drop pot that pipe, lower infusion tube, its inlet and outlet are connected to upper infusion tube and lower infusion tube respectively is arranged in lower infusion Medical fluid flow regulator on hose, furthermore, further includes: match liquid pot with what the drop pot was set side by side；The import of liquid pot is matched in connection With the upper liquid separating pipe of the upper infusion tube；Lower separating tube of the connection with liquid pot outlet and the lower infusion tube；Setting is in institute It states and matches liquid pot flow regulator with flow rate of liquid in liquid pot for adjusting on lower separating tube.Above-mentioned transfusion system structure is simple, It is easy to use, compatibility can be carried out by dosing object at any time, and when the change after compatibility occurs, can only throw away seldom liquid with Infusion apparatus reduces the waste of drug, mitigation, and does not have to replacement infusion apparatus and liquid.
But there are still some disadvantages for above-mentioned infusion apparatus.For example, above-mentioned infusion apparatus is when in use, it is by the first medical fluid Drop pot is respectively put into second of medical fluid and is matched in chamber pot with what drop pot was set side by side, then by on pipeline below liquid pot Derailing switch controls the input quantity of second of medical fluid, and in above-mentioned infusion apparatus, two kinds of medical fluids are directly to mix in perfusion tube, are not had There is the special mixer of setting, mixed effect is unsatisfactory, and the proportion of two kinds of medical fluids is also not easy strict control.
In addition, needle-covering cap in the prior art and infusion niidl are mating, and during using infusion apparatus, syringe needle It after helmet is removed from infusion niidl, is often dropped, pollutes environment；And make infusion apparatus after infusion is completed, infusion Syringe needle can not be valid protected, and infusion niidl is exposed to be easy to damage medical worker outside.
In addition, due to there are a large amount of various particles in medical fluid, so infusion apparatus is designed with liquid medicine filter.It is general defeated The particle of 20 microns of liquid medicine filter intelligent filtering diameter or more used in liquid device, filter membrane used are coarse filtration film.And medicine There are 5~20 microns of diameter of particle number is most in liquid, harm is maximum.Therefore, with 5 microns of filter diameter of energy or more The infusion apparatus of micro particle filtering film is known as precision filter infusion set, but the filter opening very little of secondary filter, influences the flow and stream of infusion Speed.
Summary of the invention
In view of the deficiencies of the prior art, the invention proposes one kind to match liquid infusion apparatus, accurately, conveniently with liquid, can be to medicine Liquid carries out secondary filter, and syringe needle exposed will not be polluted and be injured outside after the completion of infusion.
The technical proposal for solving the technical problem of the invention is: liquid infusion apparatus, institute are matched in a kind of filtering of safe and convenient Infusion apparatus is stated mainly and includes first with liquid bag, second with liquid bag, mixed liquid bag, perfusion tube and needle head structure, and described first matches liquid bag Upper/lower terminal be connected separately with the first inlet tube and the first outlet tube, the described second upper/lower terminal with liquid bag is separately connected There are the second inlet tube and the second outlet tube；Outlet tube derailing switch is equipped on first outlet tube and the second outlet tube；Institute The lower end of the lower end and second outlet tube of stating the first outlet tube crosses, and is connected with the inlet of the mixed liquid bag, described The liquid outlet of mixed liquid bag is connected with perfusion tube；The end of the perfusion tube is needle head structure；The needle head structure includes syringe needle, set Needle-covering cap outside the syringe needle and the connector for being fixedly connected with the needle-covering cap with the perfusion tube；It is described On perfusion tube, liquid medicine filter is equipped in a small distance above needle head structure.
Further, the upper end of first inlet tube and the second inlet tube is common and is connected with puncture needle；Described first Inlet tube, the second inlet tube and puncture needle three's connecting place are equipped with inlet tube derailing switch.
Further, the inlet tube derailing switch is three-way cock device, and the three-way cock device can control first respectively This three accesses of inlet tube, the second inlet tube and puncture needle.When injecting the first medical fluid with liquid bag to first, by three-way cock The access of puncture needle and the first inlet tube in device is opened, and the access of the second inlet tube is simultaneously closed off, can be to avoid the first medicine Liquid stream enters second and pollutes with liquid bag；When injecting second of medical fluid with liquid bag to second, operating method and principle are same as above.
Further, the connector between the needle-covering cap and the perfusion tube is flexible connecting member, using elastic material Material is made.When syringe needle takes out from needle-covering cap, needle-covering cap is connected on perfusion tube still through connector, will not by with Meaning abandons, and after the completion of infusion, syringe needle can be recovered in needle-covering cap again, exposed will not pollute and injure outside；On and Connector is stated using elastic material, the length and shape of connector can be adjusted as needed, is easy to use.
Further, the upper/lower terminal of the liquid medicine filter is connected with perfusion tube respectively, and the liquid medicine filter is divided into Upper filter chamber and lower filter chamber, are separated between the upper filter chamber and lower filter chamber by filter membrane.
Further, the upper filter chamber is communicated with perfusion tube, and the periphery of the upper filter chamber is equipped with discharge chamber, described Discharge chamber is communicated by air-guiding film with the lower filter chamber, so that filtering is more smooth.
Further, the filter membrane is nanoparticle filter membrane.Secondary filter, mistake are carried out by nanoparticle filter membrane It is good to filter effect, 5~20 microns of diameter of particle can be filtered out.
The access of puncture needle and the first inlet tube is opened in use, first passing through three-way cock device on inlet tube, by the The path blockade of two inlet tubes matches in liquid bag to first and injects the first medical fluid；Then, then by puncture needle and the second inlet tube Access is opened, and by the path blockade of the first inlet tube, is matched in liquid bag to second and is injected second of medical fluid；It has been injected to two kinds of medical fluids Cheng Hou, opens the outlet tube derailing switch on the first outlet tube and the second outlet tube, the first medical fluid and second of medical fluid injection are mixed In liquid bag after mixing, liquid medicine filter is delivered to by perfusion tube, by the filtration of liquid medicine filter, removes medical fluid In granulometric impurity, then medical fluid is inputted into patient's body.
The beneficial effects of the present invention are: compared with prior art, offer of the invention with liquid infusion apparatus mainly have with Lower some advantages:
1) puncture needle, the first inlet tube, second inlet tube three's connecting place are equipped with three-way cock device, can accurately control the first Medical fluid enters first and matches liquid bag, and second of medical fluid enters second and match liquid bag, avoid mutually polluting between medical fluid；
2) using elastic material by needle-covering cap be fixedly connected on perfusion tube, when syringe needle takes out from needle-covering cap, syringe needle Helmet is connected on perfusion tube still through connector, will not arbitrarily be abandoned, and after the completion of infusion, syringe needle can cover back stitching again In head helmet, exposed it will not pollute and injure outside；And above-mentioned connector uses elastic material, can adjust as needed The length and shape of itself are easy to use；
3) filter is set on perfusion tube, may filter that the molecule in medical fluid, and the filter has degassing function, so that mistake It filters more smooth.
Detailed description of the invention
Fig. 1 is the structural schematic diagram provided in the present invention with liquid infusion apparatus.
Fig. 2 is the partial enlarged view of needle head structure 7 in Fig. 1.
Fig. 3 is the structural schematic diagram of infusion apparatus Chinese medicine liquid filter provided in the present invention.
Wherein, 1- puncture needle；The second inlet tube of 2-；3- second matches liquid bag；4- outlet tube derailing switch；5- mixes liquid bag；6- medicine Liquid filter；61- discharge chamber；62- air-guiding film；Filter chamber under 63-；64- filter membrane；The upper filter chamber of 65-；7- needle head structure；71- Connector；72- syringe needle；73- needle-covering cap；8- perfusion tube；The first outlet tube of 9-；10- first matches liquid bag；The first inlet tube of 11-； 12- three-way cock device.
Specific embodiment
The present invention is further illustrated below by specific embodiment.But these examples are merely to illustrate the present invention and do not have to In limiting the scope of the invention.
Embodiment
As shown in Figures 1 to 3, liquid infusion apparatus is matched in a kind of filtering of safe and convenient, and the infusion apparatus mainly includes first with liquid Bag 10, second connects respectively with liquid bag 3, mixed liquid bag 5, perfusion tube 8 and needle head structure 7, the described first upper/lower terminal with liquid bag 10 It is connected to the first inlet tube 11 and the first outlet tube 9, the described second upper/lower terminal with liquid bag 3 is connected separately with the second inlet tube 2 With the second outlet tube；Outlet tube derailing switch 4 is equipped on first outlet tube 9 and the second outlet tube；Described first goes out liquid The lower end of pipe 9 and the lower end of second outlet tube cross, and are connected with the inlet of the mixed liquid bag 5, the mixed liquid bag 5 Liquid outlet is connected with perfusion tube 8；The end of the perfusion tube 8 is needle head structure 7；The needle head structure 7 includes syringe needle 72, is arranged Needle-covering cap 73 outside the syringe needle 72 and the connector for being fixedly connected with the needle-covering cap 73 with the perfusion tube 8 71；On the perfusion tube 8, liquid medicine filter 6 is equipped in a small distance above needle head structure 7.
The upper end of first inlet tube 11 and the second inlet tube 2 is common and is connected with puncture needle 1；First inlet tube 11, the second inlet tube 2 and 1 three's connecting place of puncture needle are equipped with inlet tube derailing switch.The inlet tube derailing switch is three-way cock Device 12, the three-way cock device 12 can control this three accesses of the first inlet tube 11, the second inlet tube 2 and puncture needle 1 respectively.When When injecting the first medical fluid with liquid bag 10 to first, by the access of puncture needle 1 and the first inlet tube 11 in three-way cock device 12 It opens, simultaneously closes off the access of the second inlet tube 2, second can be flowed into avoid the first medical fluid and be polluted with liquid bag 3；When to Second with liquid bag 3 inject second of medical fluid when, operating method and principle are same as above.
Connector 71 between the needle-covering cap 73 and the perfusion tube 8 is flexible connecting member, using elastic material system At.When syringe needle 72 takes out from needle-covering cap 73, needle-covering cap 73 is connected on perfusion tube 8 still through connector 71, no Can arbitrarily be abandoned, after the completion of infusion, syringe needle 72 can be recovered again in needle-covering cap 73, exposed will not pollute outside and Injury；And above-mentioned connector 71 uses elastic material, can adjust the length and shape of connector 71, as needed convenient for making With.
The upper/lower terminal of the liquid medicine filter 6 is connected with perfusion tube 8 respectively, and the liquid medicine filter 6 divides for upper filtering Chamber 65 and lower filter chamber 63 are separated between the upper filter chamber 65 and lower filter chamber 63 by filter membrane 64.The upper filter chamber 65 communicate with perfusion tube 8, and the periphery of the upper filter chamber 65 is equipped with discharge chamber 61, and the discharge chamber 61 passes through air-guiding film 62 and institute It states lower filter chamber 63 to communicate, so that filtering is more smooth.The filter membrane 64 is nanoparticle filter membrane.It is filtered by nanoparticle Film carries out secondary filter, and filter effect is good, can filter out 5~20 microns of diameter of particle.
In use, the three-way cock device 12 first passed through on inlet tube opens the access of puncture needle 1 and the first inlet tube 11, By the path blockade of the second inlet tube 2, matches in liquid bag 10 to first and inject the first medical fluid；Then, then by puncture needle 1 and second The access of inlet tube 2 is opened, and by the path blockade of the first inlet tube 11, is matched in liquid bag 3 to second and is injected second of medical fluid；To two After the completion of the injection of kind of medical fluid, the outlet tube derailing switch 4 on the first outlet tube 9 and the second outlet tube is opened, the first medical fluid and the Two kinds of medical fluids inject in mixed liquid bag 5 after mixing, are delivered to liquid medicine filter 6 by perfusion tube 8, pass through liquid medicine filter 6 Filtration, remove the granulometric impurity in medical fluid, then medical fluid inputted into patient's body.
Compared with prior art, what is provided in the present embodiment mainly has following advantage with liquid infusion apparatus:
1) puncture needle 1, the first inlet tube 11,2 three's connecting place of the second inlet tube are equipped with three-way cock device 12, can accurately control The first medical fluid enters first and matches liquid bag 10, and second of medical fluid enters second and match liquid bag 3, avoid mutually polluting between medical fluid；
2) using elastic material by needle-covering cap 73 be fixedly connected on perfusion tube 8, when syringe needle 72 takes out from needle-covering cap 73 When, needle-covering cap 73 is connected on perfusion tube 8 still through connector 71, it will not arbitrarily be abandoned, after the completion of infusion, and syringe needle 72 can recover again in needle-covering cap 73, exposed will not pollute and injure outside；And above-mentioned connector 71 is using elastic material Material, can adjust the length and shape of itself as needed, be easy to use；
3) filter is set on perfusion tube 8, may filter that the molecule in medical fluid, and the filter has degassing function, so that It filters more smooth.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.

Claims (7)

1. liquid infusion apparatus is matched in a kind of filtering of safe and convenient, it is characterised in that: the infusion apparatus mainly includes first with liquid bag, the Two are connected separately with the first feed liquor with liquid bag, mixed liquid bag, perfusion tube and needle head structure, the described first upper/lower terminal with liquid bag Pipe and the first outlet tube, the described second upper/lower terminal with liquid bag are connected separately with the second inlet tube and the second outlet tube；It is described The first outlet tube and the second outlet tube on be equipped with outlet tube derailing switch；The lower end of first outlet tube goes out with described second The lower end of liquid pipe crosses, and is connected with the inlet of the mixed liquid bag, and the liquid outlet of the mixed liquid bag is connected with perfusion tube；It is described The end of perfusion tube is needle head structure；The needle head structure include syringe needle, the needle-covering cap being sheathed on outside the syringe needle and The connector that the needle-covering cap is fixedly connected with the perfusion tube；On the perfusion tube, one above needle head structure is small Section distance is interior to be equipped with liquid medicine filter.
2. liquid infusion apparatus is matched in a kind of filtering of safe and convenient as described in claim 1, it is characterised in that: first inlet tube It is common with the upper end of the second inlet tube and be connected with puncture needle；First inlet tube, the second inlet tube and puncture needle three's phase Inlet tube derailing switch is equipped at even.
3. liquid infusion apparatus is matched in a kind of filtering of safe and convenient as claimed in claim 2, it is characterised in that: the inlet tube switch Device is three-way cock device, and it is logical that the three-way cock device can control the first inlet tube, the second inlet tube and puncture needle this three respectively Road.
4. liquid infusion apparatus is matched in a kind of filtering of safe and convenient as described in claim 1, it is characterised in that: the needle-covering cap with Connector between the perfusion tube is flexible connecting member, is made of elastic material.
5. liquid infusion apparatus is matched in a kind of filtering of safe and convenient as described in claim 1, it is characterised in that: the liquid medicine filter Upper/lower terminal be connected respectively with perfusion tube, the liquid medicine filter is divided into filter chamber and lower filter chamber, the upper filter chamber It is separated between lower filter chamber by filter membrane.
6. liquid infusion apparatus is matched in a kind of filtering of safe and convenient as claimed in claim 5, it is characterised in that: the upper filter chamber with Perfusion tube communicates, and the periphery of the upper filter chamber is equipped with discharge chamber, and the discharge chamber passes through air-guiding film and the lower filter chamber phase It is logical.
7. liquid infusion apparatus is matched in a kind of filtering of safe and convenient as claimed in claim 5, it is characterised in that: the filter membrane is Nanoparticle filter membrane.
CN201810810592.1A 2018-07-23 2018-07-23 Liquid infusion apparatus is matched in a kind of filtering of safe and convenient Withdrawn CN109010986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810810592.1A CN109010986A (en) 2018-07-23 2018-07-23 Liquid infusion apparatus is matched in a kind of filtering of safe and convenient

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810810592.1A CN109010986A (en) 2018-07-23 2018-07-23 Liquid infusion apparatus is matched in a kind of filtering of safe and convenient

Publications (1)

Publication Number Publication Date
CN109010986A true CN109010986A (en) 2018-12-18

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CN201810810592.1A Withdrawn CN109010986A (en) 2018-07-23 2018-07-23 Liquid infusion apparatus is matched in a kind of filtering of safe and convenient

Country Status (1)

Country Link
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Application publication date: 20181218

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