CN201131972Y - Improved drug-dissolving needle - Google Patents
Improved drug-dissolving needle Download PDFInfo
- Publication number
- CN201131972Y CN201131972Y CNU2008200161821U CN200820016182U CN201131972Y CN 201131972 Y CN201131972 Y CN 201131972Y CN U2008200161821 U CNU2008200161821 U CN U2008200161821U CN 200820016182 U CN200820016182 U CN 200820016182U CN 201131972 Y CN201131972 Y CN 201131972Y
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- CN
- China
- Prior art keywords
- needle
- air inlet
- bottle
- air
- syringe
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an improved drug dissolution needle, which comprises a needle seat, a needle head and an injection needle cylinder. The needle head adopts a two-cavity tube, namely the inner part thereof is divided into a medical liquid in-out cavity and an air inlet cavity, the front end of the air inlet cavity is communicated with an air outlet, the rear end of the air inlet cavity is connected with an air inlet arranged on the needle seat, a filter cotton used for filtrating air is installed at the air inlet, and a filter membrane is arranged on the needle seat. Because the filter membrane is arranged in the needle seat, the improved drug dissolution needle can prevent various dusts and foreign impurities from contaminating medical liquid, and simultaneously, because of the air inlet cavity arranged in the needle head, filtered air enters into a medicine bottle during the medicine dispensing, to reduce the negative pressure in the bottle, and to be convenient for drawing the medical liquid from the bottle.
Description
Technical field
This utility model belongs to a kind of medical apparatus and instruments, particularly relates to a kind of molten medicine pin that makes up a prescription that is exclusively used in.
Background technology
Often need in the venous transfusion treatment one or more medicines are added in the infusion bottle, evenly dissolve, the most frequently used method be with ordinary syringe between ampoule and infusion bottle, extract repeatedly, implant operation, there are two problems in this dosage: the one, and traditional syringe needle bottle stopper that need repeatedly puncture, destroyed the tightness of bottle stopper, bottle stopper all is an elastomeric material simultaneously, repeated localised puncture easily makes the rubber stopper breakage on the one hand, produce rubber scraps and pollute medicinal liquid, the chip of Chan Shenging easily stops up the syringe needle hole on the other hand; The 2nd, because medicine bottle all is a strict seal, produce negative pressure in the bottle, when extracting medicinal liquid, syringe relatively requires great effort.
Summary of the invention
The purpose of this utility model is exactly the above problem that exists when utilizing ordinary syringe to make up a prescription at existing, and a kind of improved molten medicine pin is provided, and it has when making up a prescription automatic fitration medicinal liquid, reduces negative pressure in the bottle, the advantage of extraction medicinal liquid in the bottle easily.
The purpose of this utility model is to realize like this, this improved molten medicine pin comprises needle stand, syringe needle, syringe cylinder, described syringe needle is installed on the papillae of syringe cylinder front end by needle stand, described syringe needle is a double lumen tube, be that inside is divided into medicinal liquid turnover chamber and inlet chamber, the front end of described inlet chamber communicates with a venthole, the rear end of inlet chamber links with the air inlet that is located on the needle stand, described air inlet position is equipped with the filter cotton that is used for filtered air, described needle stand is provided with a filter membrane, and the push rod of a band piston is arranged in the described syringe cylinder.
When extracting medicinal liquid, air is entered in the medicinal liquid bottle by inlet chamber, venthole by the filtration of air inlet through filter cotton again, and the medicinal liquid in the medicinal liquid bottle then enters needle stand by medicinal liquid turnover chamber, and the filtration by the filter membrane in the needle stand enters in the syringe cylinder.
The beneficial effects of the utility model: compared with prior art, this improved molten medicine pin is owing to be provided with filter membrane in needle stand, therefore prevented of the pollution of various dust impurity to medicinal liquid, simultaneously owing in syringe needle, be provided with inlet chamber, filtered air enters in the medicine bottle when making up a prescription, can reduce a bottle interior negative pressure, be convenient in bottle, extract medicinal liquid.
Description of drawings
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing
Fig. 1 is a cutaway view of the present utility model
Among the figure: 1, needle stand 2, syringe needle 3, syringe cylinder 4, inlet chamber 5, medicinal liquid turnover chamber 6, venthole 7, filter cotton 8, filter membrane 9, papillae 10, push rod
The specific embodiment
As shown in Figure 1, this improved molten medicine pin comprises needle stand 1, syringe needle 2, syringe cylinder 3, syringe needle 2 is installed on the papillae 9 of syringe cylinder 3 front ends by needle stand 1, syringe needle 2 is a double lumen tube, and promptly inside is divided into medicinal liquid turnover chamber 5 and inlet chamber 4, and the front end of inlet chamber 4 communicates with a venthole 6, the rear end of inlet chamber 4 links with the air inlet that is located on the needle stand, air inlet position is equipped with the filter cotton 7 that is used for filtered air, is provided with a filter membrane 8 in the needle stand 1, and the push rod 10 of a band piston is arranged in the syringe cylinder 3.
When extracting medicinal liquid, air is by the filtration of air inlet through filter cotton 7, enter in the medicinal liquid bottle by inlet chamber 4, venthole 6, the medicinal liquid in the medicinal liquid bottle then enters needle stand 1 by medicinal liquid turnover chamber 5 again, and the filtration by the filter membrane 7 in the needle stand 1 enters in the syringe cylinder 3.
Claims (1)
1, a kind of improved molten medicine pin, this improved molten medicine pin comprises needle stand, syringe needle, syringe cylinder, described syringe needle is installed on the papillae of syringe cylinder front end by needle stand, it is characterized in that described syringe needle is a double lumen tube, be that inside is divided into medicinal liquid turnover chamber and inlet chamber, the front end of described inlet chamber communicates with a venthole, and the rear end of inlet chamber links with the air inlet that is located on the needle stand, described air inlet position is equipped with the filter cotton that is used for filtered air, is provided with a filter membrane in the described needle stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200161821U CN201131972Y (en) | 2008-01-10 | 2008-01-10 | Improved drug-dissolving needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200161821U CN201131972Y (en) | 2008-01-10 | 2008-01-10 | Improved drug-dissolving needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201131972Y true CN201131972Y (en) | 2008-10-15 |
Family
ID=40060245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200161821U Expired - Fee Related CN201131972Y (en) | 2008-01-10 | 2008-01-10 | Improved drug-dissolving needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201131972Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102415947A (en) * | 2011-09-29 | 2012-04-18 | 江苏苏云医疗器材有限公司 | Disposable air-filtering type medicine dissolving needle |
| CN105682721A (en) * | 2014-07-21 | 2016-06-15 | 崔根郁 | Fluid injection needle unit having stick injury and infection prevention function |
| CN106726564A (en) * | 2016-12-30 | 2017-05-31 | 浙江华福医用器材有限公司 | Molten medicine pin |
| CN106963643A (en) * | 2017-04-24 | 2017-07-21 | 苏州科技城医院 | Antispray two-tube injection needle |
| WO2017197907A1 (en) * | 2016-05-18 | 2017-11-23 | 张巍 | Aseptic medication preparation system |
| CN107811859A (en) * | 2017-11-30 | 2018-03-20 | 华德芳 | Dispensing injector with pin |
| CN110236943A (en) * | 2019-07-19 | 2019-09-17 | 上海丞信医疗器械科技有限公司 | It is a kind of to shift filter with the medical fluid of cam pin and filter structure |
-
2008
- 2008-01-10 CN CNU2008200161821U patent/CN201131972Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102415947A (en) * | 2011-09-29 | 2012-04-18 | 江苏苏云医疗器材有限公司 | Disposable air-filtering type medicine dissolving needle |
| CN105682721A (en) * | 2014-07-21 | 2016-06-15 | 崔根郁 | Fluid injection needle unit having stick injury and infection prevention function |
| WO2017197907A1 (en) * | 2016-05-18 | 2017-11-23 | 张巍 | Aseptic medication preparation system |
| CN106726564A (en) * | 2016-12-30 | 2017-05-31 | 浙江华福医用器材有限公司 | Molten medicine pin |
| CN106726564B (en) * | 2016-12-30 | 2023-09-22 | 浙江华福医用器材有限公司 | Medicine dissolving needle |
| CN106963643A (en) * | 2017-04-24 | 2017-07-21 | 苏州科技城医院 | Antispray two-tube injection needle |
| CN107811859A (en) * | 2017-11-30 | 2018-03-20 | 华德芳 | Dispensing injector with pin |
| CN110236943A (en) * | 2019-07-19 | 2019-09-17 | 上海丞信医疗器械科技有限公司 | It is a kind of to shift filter with the medical fluid of cam pin and filter structure |
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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: 20081015 |