CN203842116U - Bottle stopper puncture device for providing easy access to air - Google Patents
Bottle stopper puncture device for providing easy access to air Download PDFInfo
- Publication number
- CN203842116U CN203842116U CN201420125803.5U CN201420125803U CN203842116U CN 203842116 U CN203842116 U CN 203842116U CN 201420125803 U CN201420125803 U CN 201420125803U CN 203842116 U CN203842116 U CN 203842116U
- Authority
- CN
- China
- Prior art keywords
- air
- inlet
- air inlet
- channel
- infusion
- 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 - Lifetime
Links
- 241001411320 Eriogonum inflatum Species 0.000 title abstract 5
- 238000001802 infusion Methods 0.000 claims abstract description 37
- 238000001914 filtration Methods 0.000 claims abstract description 22
- 239000012528 membrane Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000037361 pathway Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Landscapes
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a bottle stopper puncture device for providing easy access to air. The bottle stopper puncture device is composed of a puncture needle, an air filtering membrane and an air inlet stopper. The air inlet stopper is assembled at the middle portion of the side wall of the puncture needle by bonding. The bottle stopper puncture device is characterized in that an infusion channel, an air inlet channel and an air inlet chamber are arranged in the puncture needle; the infusion channel and the air inlet channel are separated from each other; a liquid outlet of the infusion channel and an air outlet of the air inlet channel are arranged at two sides of a pointed puncture end at the left end of the puncture needle; the air inlet chamber is arranged at the middle portion of the side wall of the puncture needle; an air inlet of the air inlet channel is communicated with an air outlet of the air inlet chamber; the air inlet chamber is half of or a quarter of the air inlet chamber of an original puncture device in size; and external air flows to the air inlet channel via the air filtering membrane and finally enters an infusion container to balance negative pressure of the infusion container and further ensure continuous and steady of infusion for an infusion apparatus. The bottle stopper puncture device for providing easy access to air has following beneficial effects: blockage of the air inlet channel caused by the fact that the air filtering membrane is soaked by medical liquid is effectively avoided in order to keep the infusion apparatus in a continuous and stable infusion state.
Description
Technical field
This utility model relates to medical apparatus, especially relates to a kind of easy air inlet bottle plug puncture unit for infusion set.
Background technology
At present, the bottle plug puncture unit with inlet channel in infusion set has used for many years in medical instruments field, and its profile and structure are more and more diversified, has also caused the function of bottle plug puncture unit uneven.Inlet channel due to bottle plug puncture unit: the air-filtering membrane that prevents that airborne dust and antibacterial from entering is installed in inlet plenum, therefore often occur because of the former of air-filtering membrane thereby make the blocked situation of inlet channel, this can cause infusion vessel to produce negative pressure because supplementing air, and causes the serious consequence that patient is interrupted in infusion process., interrupt because of transfusion meanwhile, the blood back flow of patient's Venous system is entered in the pipeline of infusion set, cause patient's fear, when serious, threaten patient's life.
The reason of stopping up with the inlet channel of the bottle plug puncture unit of inlet channel is to produce because of the structural design factor of inlet channel substantially.Bottle plug puncture unit in use, often because the liquid in infusion vessel enters into inlet plenum by inlet channel, the air-filtering membrane of inlet plenum is immersed in liquid for a long time, after air-filtering membrane is soaked, because of the reason of surface tension of liquid, cause film body micropore blocked, outside air can not enter into inlet channel by air-filtering membrane, causes inlet channel blocked.
Therefore, use one to have the inlet channel of preventing stopping state and occur, simple in structure, easy and simple to handle, safe and effective easily air inlet bottle plug puncture unit is just particularly important.
Summary of the invention
The purpose of this utility model is to provide a kind of easily air inlet bottle plug puncture unit, this bottle plug puncture unit in use, can effectively prevent that inlet channel from occurring because air-filtering membrane is soaked by medicinal liquid the stopping state causing, to ensure that infusion set product is all the time in lasting, stable transfusion state.
The purpose of this utility model is achieved in that
A kind of easily air inlet bottle plug puncture unit, by puncture needle, air-filtering membrane and inlet valve composition, inlet valve is assemblied in the sidewall middle part of puncture needle by bonding, feature is: in puncture needle, be provided with infusion channel, inlet channel and inlet plenum, infusion channel and inlet channel are isolated mutually, the liquid outlet of infusion channel and the gas outlet of inlet channel are located at respectively the pointed cutting tip both sides of puncture needle left end, the inlet that is used for the infusion channel being connected with transfusion catheter is located at the right-hand member of puncture needle, inlet plenum is located at the sidewall middle part of puncture needle, the air inlet of inlet channel is communicated with the gas outlet of inlet plenum, air-filtering membrane is placed on the air inlet of inlet plenum, and inlet valve is entirely fixed on air-filtering membrane in the inlet plenum of puncture needle.
The volume of inlet plenum is the 1/2--1/4 of the inlet plenum volume of general perforator, and extraneous air enters inlet channel by air-filtering membrane, finally enters in infusion vessel, with the negative pressure in balance infusion vessel, ensures the continual and steady transfusion of infusion set.
Being shaped as of inlet plenum is circular, fan-shaped, square, one in rectangle, ellipse or triangle.
This utility model is on puncture needle, to be designed with two passages of isolation mutually, and one is inlet channel, and inlet channel is communicated with inlet plenum, and another is feed pathway.The inlet plenum volume of the common bottle plug puncture unit of the volume ratio of inlet plenum is little, little being conducive to of volume of inlet plenum flows into the transfusion liquid being retained in inlet plenum infusion vessel up hill and dale from inlet channel, thereby avoid leaving over the long-time chance of soaking of medicinal liquid and air-filtering membrane, outside air can enter into inlet channel by air-filtering membrane, has stopped inlet channel blocked.
The utlity model has following advantage:
1, this utility model has solved the problem that the transfusion blocked and that cause of the inlet channel of bottle plug puncture unit is interrupted effectively, and simple in structure, clinical manipulation is easy.
2, this utility model can avoid changing because bottle plug puncture unit is blocked infusion set, reduces patient's the cost of seeking medical advice, and alleviates medical personnel's workload.
3, this utility model is applicable to conventional infusion set supportingly, and production cost is low, can extensive use clinical.
brief description of the drawings
Fig. 1 is sectional structure schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment and contrast accompanying drawing this utility model is described in further detail.
A kind of easily air inlet bottle plug puncture unit, by puncture needle 1, air-filtering membrane 2 and inlet valve 3 form, inlet valve 3 is assemblied in the sidewall middle part of puncture needle 1 by bonding, in puncture needle 1, be provided with infusion channel 11, inlet channel 12 and inlet plenum 13, infusion channel 11 and inlet channel 12 are isolated mutually, the gas outlet of the liquid outlet of infusion channel 11 and inlet channel 12 is located at respectively the pointed cutting tip both sides of puncture needle 1 left end, the inlet that is used for the infusion channel 11 being connected with transfusion catheter is located at the right-hand member of puncture needle 1, inlet plenum 13 is located at the sidewall middle part of puncture needle 1, the air inlet of inlet channel 12 is communicated with the gas outlet of inlet plenum 13, air-filtering membrane 2 is placed on the air inlet of inlet plenum 13, and inlet valve 3 is entirely fixed on air-filtering membrane 2 in the inlet plenum 13 of puncture needle 1.
The volume of inlet plenum 13 is 1/3 size of the inlet plenum volume of general perforator, and extraneous air enters inlet channel 12 by air-filtering membrane 2, finally enters in infusion vessel, with the negative pressure in balance infusion vessel, ensures the continual and steady transfusion of infusion set.
Being shaped as of inlet plenum 13 is circular, fan-shaped, square, one in rectangle, ellipse or triangle.
Puncture needle 1 can be Plastic bottle plug puncture needle, can be also the plastic-steel pin of plastics and draw point combination, or single draw point dual pathways bottle cork needle.
Claims (3)
1. an easy air inlet bottle plug puncture unit, by puncture needle, air-filtering membrane and inlet valve composition, inlet valve is assemblied in the sidewall middle part of puncture needle by bonding, it is characterized in that: in puncture needle, be provided with infusion channel, inlet channel and inlet plenum, infusion channel and inlet channel are isolated mutually, the liquid outlet of infusion channel and the gas outlet of inlet channel are located at respectively the pointed cutting tip both sides of puncture needle left end, the inlet that is used for the infusion channel being connected with transfusion catheter is located at the right-hand member of puncture needle, inlet plenum is located at the sidewall middle part of puncture needle, the air inlet of inlet channel is communicated with the gas outlet of inlet plenum, air-filtering membrane is placed on the air inlet of inlet plenum, and inlet valve is entirely fixed on air-filtering membrane in the inlet plenum of puncture needle.
2. easy air inlet bottle plug puncture unit according to claim 1, is characterized in that: the 1/2--1/4 of the inlet plenum volume that the volume of inlet plenum is general perforator.
3. easy air inlet bottle plug puncture unit according to claim 1, is characterized in that: being shaped as of inlet plenum is circular, fan-shaped, square, one in rectangle, ellipse or triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125803.5U CN203842116U (en) | 2014-03-20 | 2014-03-20 | Bottle stopper puncture device for providing easy access to air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125803.5U CN203842116U (en) | 2014-03-20 | 2014-03-20 | Bottle stopper puncture device for providing easy access to air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203842116U true CN203842116U (en) | 2014-09-24 |
Family
ID=51555186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420125803.5U Expired - Lifetime CN203842116U (en) | 2014-03-20 | 2014-03-20 | Bottle stopper puncture device for providing easy access to air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203842116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359055A (en) * | 2020-03-18 | 2020-07-03 | 江西洪达医疗器械集团有限公司 | Easy-to-feed gas cylinder plug puncture outfit |
-
2014
- 2014-03-20 CN CN201420125803.5U patent/CN203842116U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359055A (en) * | 2020-03-18 | 2020-07-03 | 江西洪达医疗器械集团有限公司 | Easy-to-feed gas cylinder plug puncture outfit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |