CN203370161U - Double-sleeve-pipe medicine-adding needle - Google Patents
Double-sleeve-pipe medicine-adding needle Download PDFInfo
- Publication number
- CN203370161U CN203370161U CN201320428521.8U CN201320428521U CN203370161U CN 203370161 U CN203370161 U CN 203370161U CN 201320428521 U CN201320428521 U CN 201320428521U CN 203370161 U CN203370161 U CN 203370161U
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- China
- Prior art keywords
- needle
- syringe
- pintle
- inner sleeve
- sleeve pipe
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Abstract
A double-sleeve-pipe medicine-adding needle comprises a needle tube with a medicine liquid channel and a pintle. One end of the needle tube is fixedly connected with the pintle. A medicine extracting opening is formed in the front end of the needle tube. An inner sleeve pipe is arranged in the needle tube. The inner sleeve pipe comprises a front end exhaust opening exposed out of the front end of the needle pipe and a tail end exhaust opening exposed out of the side face of the pintle. The front end exhaust pipe is communicated with the tail end exhaust opening. According to the double-sleeve-pipe medicine-adding needle, medicine adding and taking and air pressure balancing are carried out at the same time, and the operation steps of medical personnel are simplified.
Description
Technical field
This utility model relates to the medicine instrument technical field, a kind of two sleeve pipe Medicated needle of syringe for clinical preparating liquid of special design.
Background technology
Medical personnel, when being infused, need first preparating liquid.At present, clinically, the single injection needle of general use when preparating liquid, the hand-held injection needle of medical personnel extracts water or diluent, injects and dissolves in ampoule bottle or dilute medicine, after medicine is fully dissolved, then draws medicinal liquid and injects in infusion bottle.
This process can run into following two kinds of situations usually: a kind of situation is to be vacuum state in the powder medicinal liquid bottle, and when easy injection sealed ampoule, outside pressure is higher than in bottle, and solution can suck automatically, extracts and is difficult for; Another kind of situation is to produce a large amount of gas in bottle after the powder solvent contact, causes bottle interior pressure higher than external atmosphere pressure, and forms a power contrary with people's injection liquid, causes being difficult to operation.After the air that above-mentioned the first situation need to be injected equivalent forms pressure difference, just can be convenient to extract, and operation easily makes aseptic syringe cylinder by air pollution like this.During above-mentioned the second situation, having medicinal liquid to run off from pintle and syringe nipple junction, is dose practical application deficiency.
Clinical also useful double injection syringe needle preparating liquid, be mainly used in preparing the sealed ampoule bottle of more medicinal liquid.And use the very inconvenience of double injection syringe needle, and shortcoming is to need thorniness to enter a syringe needle, complex operation, and needle point is sharp keen thrusts for twice and has increased the probability that the skin plug comes off into chip.
The utility model content
In view of this, the purpose of this utility model is for the existing the problems referred to above of existing medicine feeding needle, and proposed a kind ofly in the process of making up a prescription, and carries out when taking case injects the medicinal liquid operation making the ampoule bottle inner and outer air pressure remain the Medicated needle of syringe of balance.
For achieving the above object, this utility model provides following technical scheme:
A kind of pair of sleeve pipe Medicated needle of syringe, comprise needle tubing and pintle with medicine liquid channel, one end and the pintle of described needle tubing are connected, described needle tubing front end offers takes out the medicine mouth, it is characterized in that, be provided with an inner sleeve in described needle tubing, described inner sleeve comprises and emits for the front end air vent of described needle tubing front end and emit the tail end air vent for the side of described pintle, and described front end air vent is connected with the tail end air vent.
Further, the front end air vent of described inner sleeve is the inclined-plane otch.
Further, the front end air vent position of described inner sleeve described take out medicine mouth position before.
Further, the described medicine mouth of taking out is contrary with the front end air vent opening direction of described inner sleeve.
Further, the junction of described needle tubing and inner sleeve, described pintle and inner sleeve is and is tightly connected.
Further, described needle tubing comprises pin stalk and needle point, and an end and the pintle of described pin stalk are connected, and described needle point is set to taper shape.
Further, the length that exposes draw point of described pair of sleeve pipe Medicated needle of syringe is 2～3cm.
Further, the external diameter of described pintle is greater than the external diameter of described needle tubing.
Further, described inner sleeve is L shaped.
Compared with prior art, the beneficial effects of the utility model are: this Medicated needle of syringe is equivalent to two sleeve pipes, by an air duct is set in the medicine liquid channel in needle body, ampoule interior and extraneous conducting are carried out to gas communication, make air pressure and ambient pressure in ampoule bottle remain balance, reduced the insertion of syringe needle and extracted, simplified medical personnel's operating procedure, avoided liquid waste, reduced and pollute.
The accompanying drawing explanation
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation that Fig. 1 is the disclosed a kind of pair of sleeve pipe Medicated needle of syringe of this utility model embodiment.
1, needle tubing; 11, take out the medicine mouth; 12, needle point; 13, pin stalk;
2, pintle; 3, inner sleeve; 31, front end air vent; 32, tail end air vent.
The specific embodiment
The utility model discloses the two telescopic Medicated needle of syringe of a kind of employing, is below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but this utility model is not limited in these embodiment.
As shown in Figure 1, this pair of sleeve pipe Medicated needle of syringe comprises a needle tubing 1, pintle 2 and inner sleeve 3.Have medicine liquid channel in described needle tubing 1, an end that inserts medicine bottle offers one and takes out medicine mouth 11, and this takes out the side that medicine mouth 11 is opened in needle tubing 1, and the profile of described needle tubing 1 is similar to common side-hole dosing syringe needle.Have medicine liquid channel in described pintle 2, this both medicine liquid channel is communicated with.Respectively there is a through hole that holds inner sleeve 3 side of the front end of described needle tubing 1 and described pintle 2.The rear end of described needle tubing 1 and pintle 2 submerge in pintle 2.
There is air duct in described inner sleeve 3, this air duct is communicated with front end air vent 31 and tail end air vent 32, its front end air vent 31 emits for beyond needle tubing 1 by the through hole that is arranged on described needle tubing 1 front end, and its tail end air vent 32 emits for beyond pintle 2 and be communicated with atmosphere by the through hole that is arranged on described pintle 2 sides.Described inner sleeve 3 front end air vents 31 are the inclined-plane otch, in order to pierce through the sealing of ampoule bottle.Preferably, described inner sleeve 3 is L shaped.
When this pair of sleeve pipe Medicated needle of syringe point upward, the position of the front end air vent 31 of described inner sleeve 3 is higher than the position of taking out medicine mouth 11 of described needle tubing 1.While extracting medicine, because needs are inverted ampoule bottle, if take out front end air vent 31 positions of medicine mouth 11 positions higher than inner sleeve 3, can cause in aspiration medicinal liquid, air being pumped in the drug reservoir such as syringe cylinder.
As further improvement of the utility model, the described opening direction of taking out medicine mouth 11 must be opposing with the opening direction of the front end air vent 31 of inner sleeve 3.Through overtesting, if above-mentioned both opening directions in opposite directions, also easily when extracting medicinal liquid, be pumped into air.
For guaranteeing air-tightness of the present utility model, the contact opening of the contact opening of described needle tubing 1 and inner sleeve 3 and described pintle 2 and inner sleeve 3, all adopt the mode that is tightly connected.
As further improvement of the utility model, the length that the needle tubing 1 of this pair of sleeve pipe Medicated needle of syringe exposes to beyond pintle 2 is 2～3cm for 1/3 left and right that No. 12 side-hole dosing syringe needles that generally use clinically expose needle tubing length, and the needle tubing partial-length in the size of pintle 2 and the pintle 2 that submerges is with No. 12 side-hole dosing syringe needles.Preferably, to expose to the length of pintle 2 be 2.5cm to the needle tubing 1 of this pair of sleeve pipe Medicated needle of syringe.The length that shortens Medicated needle of syringe can be convenient to exhaust medicinal liquid last in ampoule bottle when aspiration medicinal liquid proceeds to final stage.The Medicated needle of syringe of conventional lengths often need to exit syringe from major part in the final stage of aspiration medicinal liquid could exhaust all medicinal liquids, easily causes false touch and contaminated pinhead in this case.After shortening Medicated needle of syringe, can avoid the generation of above-mentioned false touch situation.
Described needle tubing 1 further comprises needle point 12 and pin stalk 13.Described pin stalk 13 is positioned at needle point 12 rears, and an end and the pintle 2 of described pin stalk 13 are connected.Described needle point 12 is designed to taper shape, as tapered guide surface, is convenient to needle tubing 1 and together enters ampoule bottle with sharp-pointed inner sleeve 3 front end air vents 31.Described pintle 2 external diameters are greater than the external diameter of described needle tubing 1, and after guaranteeing that whole needle tubing 1 enters ampoule bottle, pintle 2 and the inner sleeve 3 tail end air vents 32 that are arranged on pintle 2 sides remain on beyond ampoule bottle.The whole pair of sleeve pipe Medicated needle of syringe and syringe are connected to the rear of described pintle 2.
Described pintle 2 adopts identical plastic material with current pintle clinically.Described needle tubing 1 and inner sleeve 3 all adopt stainless steel material, with the material that needle point is used clinically at present.
Be below method and the operation principle of this utility model when practical operation:
Two sleeve pipe Medicated needle of syringe in using the present embodiment are during to injection water for injection in airtight ampoule bottle or diluent, the front end air vent 31 of the inner sleeve 3 of this pair of sleeve pipe Medicated needle of syringe is downward, utilize in the vertical insertion ampoule bottle of its sharp-pointed front end air vent 31 until the medicine mouth 11 of taking out of whole needle tubing 1 enters in ampoule bottle fully, needle point 12 is tapered guide surface, can advantageously help needle tubing 1 to enter in ampoule bottle.Now, if ampoule bottle is intrinsic pressure powerful in external atmosphere pressure, by inner sleeve 3, make a bottle inside and outside air pressure balance, be convenient to the injection of water for injection or diluent; If be vacuum state in bottle,, by inner sleeve 3 and atmosphere UNICOM, make bottle inside and outside pressure consistent, thereby control the injection rate of water for injection or diluent, and the medicinal liquid after being convenient to make up a prescription extract.
When extracting medicinal liquid, the glass ampule of breaking into two with one's hands after need to scratching with emery wheel, can extract according to routine operation, and when extracting, because pintle 2 places have had more the part of tail end air vent 32, pintle 2 when extracting medicinal liquid can not entered in glass ampule, avoided pollution.
Compared with prior art, the beneficial effects of the utility model are:
1, this utility model is combined as a whole the passage of Medicated needle of syringe and equilibrium air pressure dexterously, has realized that dosing is got it filled to carry out with synchronizeing of balance ampoule bottle inner and outer air pressure, has simplified medical personnel's operating procedure, has improved work efficiency.
2, this utility model avoided traditional syringe needle insertion, take out in the step of inserting, avoided pollution
To those skilled in the art, obviously this utility model is not limited to the details of above-mentioned example embodiment, and in the situation that do not deviate from spirit of the present utility model or basic feature, can realize this utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, therefore is intended to include in this utility model dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limit related claim.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, and the technical scheme in each embodiment also can, through appropriate combination, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (9)
1. a two sleeve pipe Medicated needle of syringe, comprise needle tubing and pintle with medicine liquid channel, one end and the pintle of described needle tubing are connected, described needle tubing front end offers takes out the medicine mouth, it is characterized in that, be provided with an inner sleeve in described needle tubing, described inner sleeve comprises and emits for the front end air vent of described needle tubing front end and emit the tail end air vent for the side of described pintle, and described front end air vent is connected with the tail end air vent.
2. according to claim 1 pair of sleeve pipe Medicated needle of syringe, the front end air vent of described inner sleeve is the inclined-plane otch.
3. according to claim 1 pair of sleeve pipe Medicated needle of syringe, the front end air vent position of described inner sleeve described take out medicine mouth position before.
4. according to claim 1 pair of sleeve pipe Medicated needle of syringe, the described medicine mouth of taking out is contrary with the front end air vent opening direction of described inner sleeve.
5. according to claim 1 pair of sleeve pipe Medicated needle of syringe, the junction of described needle tubing and inner sleeve, described pintle and inner sleeve is and is tightly connected.
6. according to claim 1 pair of sleeve pipe Medicated needle of syringe, described needle tubing comprises pin stalk and needle point, and an end and the pintle of described pin stalk are connected, and described needle point is set to taper shape.
7. according to claim 1 pair of sleeve pipe Medicated needle of syringe, the length that exposes draw point of described pair of sleeve pipe Medicated needle of syringe is 2～3cm.
8. according to claim 1 pair of sleeve pipe Medicated needle of syringe, the external diameter of described pintle is greater than the external diameter of described needle tubing.
9. according to claim 1 pair of sleeve pipe Medicated needle of syringe, described inner sleeve is L shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320428521.8U CN203370161U (en) | 2013-07-15 | 2013-07-15 | Double-sleeve-pipe medicine-adding needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320428521.8U CN203370161U (en) | 2013-07-15 | 2013-07-15 | Double-sleeve-pipe medicine-adding needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203370161U true CN203370161U (en) | 2014-01-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320428521.8U Expired - Fee Related CN203370161U (en) | 2013-07-15 | 2013-07-15 | Double-sleeve-pipe medicine-adding needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203370161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997510A (en) * | 2016-08-03 | 2016-10-12 | 深圳市库贝尔生物科技股份有限公司 | Puncture needle |
-
2013
- 2013-07-15 CN CN201320428521.8U patent/CN203370161U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997510A (en) * | 2016-08-03 | 2016-10-12 | 深圳市库贝尔生物科技股份有限公司 | Puncture needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20160715 |