CN203090121U - Infusion apparatus - Google Patents
Infusion apparatus Download PDFInfo
- Publication number
- CN203090121U CN203090121U CN 201320129409 CN201320129409U CN203090121U CN 203090121 U CN203090121 U CN 203090121U CN 201320129409 CN201320129409 CN 201320129409 CN 201320129409 U CN201320129409 U CN 201320129409U CN 203090121 U CN203090121 U CN 203090121U
- Authority
- CN
- China
- Prior art keywords
- murphy
- flame
- liquid
- vent plug
- arrester vent
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 239000003814 drug Substances 0.000 claims abstract description 11
- 238000001990 intravenous administration Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 210000004369 Blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
Abstract
The utility model discloses an infusion apparatus which comprises an infusion hose. An inverted cone-shaped safety plug is arranged in a Murphy's dropper; the safety plug can float on liquid medicine and close the liquid outlet of the Murphy's dropper when the liquid medicine drains away; a safety plug positioning cylinder with an upper open end and a lower open end is arranged at the bottom of the Murphy's dropper and surrounds the liquid outlet; a liquid gap is reserved between the side wall of the safety positioning cylinder and the side wall of the Murphy's dropper; a plurality of liquid holes are uniformly and circularly formed in the side wall of the safety plug positioning cylinder; and the safety plug positioning cylinder fits the safety plug in size and taper. When liquid medicine exists in the Murphy's dropper, the safety plug floats on the liquid medicine; with the decrease of the liquid medicine, the safety plug falls into the safety plug positioning cylinder and keeps falling, and at the same time, remaining liquid medicine continues to flow out of the liquid outlet via the liquid holes; and when the liquid medicine drains away, the safety plug no longer receives any buoyancy force so as to fall to the bottom of the Murphy's dropper to close the liquid outlet, thereby effectively preventing air from entering a patient's body.
Description
Technical field
This utility model relates to a kind of transfusion device.
Background technology
Present transfusion device is successively by bottle plug puncture unit, infusion tube, Murphy's burette, flow regulator, liquid medicine filter, intravenous needle connects to form, bottle plug puncture unit also hose connectionly has an air filter by one, in time do not extract in the syringe needle air admission body when liquid flows to end in the transfusion device when preventing to patient infusion and the situation that air insulated blood causes cutout occurs, unsteady valve plug is set in Murphy's burette, when medicinal liquid flows to end, unsteady valve plug seals pipeline automatically, but the valve plug that floats when existing Murphy's burette to tilt at present can not well seal pipeline, thereby patient is damaged entail dangers to patient's life when serious.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of transfusion device that guarantees when medicinal liquid flows to end the infusion pipeline sealing.
For solving the problems of the technologies described above, this utility model comprises infusion tube, be successively set on bottle plug puncture unit, Murphy's burette, flow regulator, liquid medicine filter, intravenous needle on the infusion tube from top to bottom, bottle plug puncture unit hose connectionly has an air filter by one, its construction features be provided with floatability in the described Murphy's burette can be on medicinal liquid top, when medicinal liquid flows to end with the flame-arrester vent plug that is inverted cone of Murphy's burette liquid outlet sealing; Described Murphy's burette bottom part ring is provided with the flame-arrester vent plug positioning tube of the equal opening in two ends up and down around liquid outlet, the sidewall of safe positioning tube and the sidewall of Murphy's burette left the liquid slit, uniform ring is furnished with a plurality of liquid pass holes on the sidewall of flame-arrester vent plug positioning tube, and the size of described flame-arrester vent plug positioning tube and tapering and flame-arrester vent plug adapt.
The top of described flame-arrester vent plug positioning tube sidewall and the distance between the Murphy's burette sidewall are less than the radius of flame-arrester vent plug maximum cross section, the bottom that prevents flame-arrester vent plug snaps in the slit of flame-arrester vent plug positioning tube and Murphy's burette, guarantees that under any circumstance it can both operate as normal.
The bottom surface of described flame-arrester vent plug is dome shape, can prevent better that the bottom of flame-arrester vent plug from snapping in the slit of flame-arrester vent plug positioning tube and Murphy's burette.
The top end face of described flame-arrester vent plug positioning tube sidewall is downward-sloping to inner surface from its outer surface, better the whereabouts of auxiliary security plug.
After adopting said structure, when in the Murphy's burette medicinal liquid being arranged, flame-arrester vent plug is suspended on the liquid level, continuous minimizing along with medicinal liquid, flame-arrester vent plug falls in the flame-arrester vent plug positioning tube and constantly, and remains medicinal liquid this moment and continues to flow out from liquid outlet by liquid pass hole, when treating that medicinal liquid flows to end, thereby liquid outlet is sealed in the bottom that flame-arrester vent plug no longer is subjected to any buoyancy to fall to Murphy's burette, effectively prevents in the air admission patient body.
Description of drawings
Below in conjunction with the drawings and the specific embodiments this utility model is described in further detail:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the enlarged diagram at A place among Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, transfusion device comprises infusion tube 4, be successively set on bottle plug puncture unit 1, Murphy's burette 5, flow regulator 6, liquid medicine filter 7, intravenous needle 8 on the infusion tube 4 from top to bottom, bottle plug puncture unit 1 hose connectionly has an air filter 2 by one.Being provided with floatability in the Murphy's burette 5 can be with the flame-arrester vent plug that is inverted cone 3 of Murphy's burette 5 liquid outlets sealing on medicinal liquid top, when medicinal liquid flows to end, the bottom surface of flame-arrester vent plug 3 is dome shape, the radial diameter of the maximum of flame-arrester vent plug 3 is greater than the liquid outlet of Murphy's burette 5, the density of flame-arrester vent plug 3 bottoms is greater than its top density, and its global density is less than medicinal liquid density, thereby make it can swim in medicinal liquid top, and its bottom all the time down.Murphy's burette 5 bottom part ring are provided with the equal opening in two ends up and down and are the flame-arrester vent plug positioning tube 51 of inverted cone shape around liquid outlet, the size of flame-arrester vent plug positioning tube 51 and tapering and flame-arrester vent plug 3 adapt, this locates said size and tapering is meant size and the tapering of flame-arrester vent plug positioning tube 51 around the inner space that surrounds, the sidewall of the sidewall of safe positioning tube and Murphy's burette 5 left the liquid slit, distance between the top of flame-arrester vent plug positioning tube 51 sidewalls and Murphy's burette 5 sidewalls is less than the radius of flame-arrester vent plug 3 maximum cross sections, uniform ring is furnished with a plurality of liquid pass holes 52 on the sidewall of flame-arrester vent plug positioning tube 51, the top end face of flame-arrester vent plug positioning tube 51 sidewalls is downward-sloping to inner surface from its outer surface, and this end face is the cambered surface of smooth transition in the present embodiment.
The above is a preferred embodiment of the present utility model only, is not limited to this utility model.Previous embodiment has been described in detail this utility model, and for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.In every case within inventive concept scope of the present utility model, any modification of being made, be equal to replacement, improvement etc., all be included within the protection domain of the present utility model.
Claims (4)
1. transfusion device, it comprises infusion tube (4), be successively set on bottle plug puncture unit (1), Murphy's burette (5), flow regulator (6), liquid medicine filter (7), intravenous needle (8) on the infusion tube (4) from top to bottom, bottle plug puncture unit (1) hose connectionly has an air filter (2) by one, and it is characterized in that being provided with in the described Murphy's burette (5) floatability can be with the flame-arrester vent plug that is inverted cone (3) of Murphy's burette (5) liquid outlet sealing on medicinal liquid top, when medicinal liquid flows to end; Described Murphy's burette (5) bottom part ring is provided with the flame-arrester vent plug positioning tube (51) of the equal opening in two ends up and down around liquid outlet, the sidewall of the sidewall of safe positioning tube and Murphy's burette (5) left the liquid slit, uniform ring is furnished with a plurality of liquid pass holes (52) on the sidewall of flame-arrester vent plug positioning tube (51), and the size of described flame-arrester vent plug positioning tube (51) and tapering and flame-arrester vent plug (3) adapt.
2. transfusion device as claimed in claim 1 is characterized in that the top of described flame-arrester vent plug positioning tube (51) sidewall and the distance between Murphy's burette (5) sidewall radius less than the flame-arrester vent plug maximum cross section.
3. transfusion device as claimed in claim 1 is characterized in that the bottom surface of described flame-arrester vent plug (3) is dome shape.
4. as each described transfusion device of claim 1 to 3, it is characterized in that the top end face of described flame-arrester vent plug positioning tube (51) sidewall is downward-sloping to inner surface from its outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129409 CN203090121U (en) | 2013-03-21 | 2013-03-21 | Infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129409 CN203090121U (en) | 2013-03-21 | 2013-03-21 | Infusion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203090121U true CN203090121U (en) | 2013-07-31 |
Family
ID=48841569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320129409 Expired - Fee Related CN203090121U (en) | 2013-03-21 | 2013-03-21 | Infusion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203090121U (en) |
-
2013
- 2013-03-21 CN CN 201320129409 patent/CN203090121U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20140321 |