CN202027920U - Medicine dispensing diluter - Google Patents
Medicine dispensing diluter Download PDFInfo
- Publication number
- CN202027920U CN202027920U CN 201120086526 CN201120086526U CN202027920U CN 202027920 U CN202027920 U CN 202027920U CN 201120086526 CN201120086526 CN 201120086526 CN 201120086526 U CN201120086526 U CN 201120086526U CN 202027920 U CN202027920 U CN 202027920U
- Authority
- CN
- China
- Prior art keywords
- syringe
- sleeve
- sleeve pipe
- tube
- wall
- 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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Abstract
The utility model discloses a medicine dispensing diluter, which comprises a syringe and a syringe sleeve fixedly connected with the syringe. A sleeve tube is sleeved outside the syringe, a seal sleeve in hermetical force fit with the outer wall of the syringe is fixedly arranged on the inner wall of the sleeve tube at a position close to the syringe sleeve, a through hole is arranged on the sleeve tube at a position away from the syringe sleeve, an air tube communicated with an inner cavity of the sleeve tube is fixedly arranged on the outer wall of the sleeve tube at a position close to the syringe tube, the through hole and the air tube are communicated by means of a groove which is arranged on the inner wall of the sleeve tube, and an elastic film is hermetically adhered onto an end opening of the air tube at a position away from the sleeve tube. One end, away from the syringe sleeve, of the sleeve tube is designed into a wedge shape in attached fit with the outer wall of the syringe, and the end, away from the sleeve tube, of the air tube is in an outwards expanded trumpet shape. The medicine dispensing diluter in the structure is reasonable in structure, capable of cooperating with liquid medicine drawing and filling to automatically increase or decrease pressure in a medicine bottle, convenient in operation and suitable for being used in various medicine dispensing or liquid medicine dilution places.
Description
Technical field
This utility model relates to a kind of dispensing diluting device.
Background technology
At present, the nursing staff injects medicinal liquid in the medicine bottle that will dilute then making up a prescription or during dilute liquid medicine, generally being to use the syringe pump medicinal liquid.Make because the bottle stopper of medicine bottle generally all is an elastomeric material, when syringe needle passed bottle stopper, syringe needle outer wall and bottle stopper compressed sealing.Like this, to the medicine bottle injection liquid time, medicine bottle inner liquid medicine total amount increases, so the gas in the medicine bottle can be compressed and cause pressure to increase.Therefore, when carrying out follow-up injecting, it is more and more difficult to become, and also has similar decompression problem when continue extracting medicinal liquid, troublesome poeration, wastes time and energy, and has increased work difficulty to the nursing staff.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of rational in infrastructure at above-mentioned deficiency, can cooperate to take out injection liquid and add and subtract the medicine bottle internal pressure automatically, and easy to operate dispensing diluting device.
For solving the problems of the technologies described above, this dispensing diluting device comprises needle body and the needle guard that is fixed together, its construction features is: the needle body outer cover is equipped with sleeve pipe, internal surface of sleeve pipe near needle guard is installed with the sealing shroud that seals compression fit with the needle body outer wall, sleeve pipe away from needle guard is provided with through hole, be installed with the trachea that is communicated with cannula cavity near on the sleeve outer wall of needle guard, internal surface of sleeve pipe is provided with the groove that is communicated with through hole and trachea, is pasted with elastic film away from sealing on the telescopic trachea port.
The dispensing diluting device of this structure is to realize cooperating by the automatic ftercompction structure of diaphragm type taking out injection liquid and adding and subtracting the medicine bottle internal pressure automatically, and easy to operate.
The automatic ftercompction structure of diaphragm type comprises the sleeve pipe that is sleeved on the needle body, and sleeve pipe is slidingly matched near an end and the needle body outer wall chucking of needle body tip, and an end of the close needle guard of sleeve pipe compresses by sealing shroud and needle body outer wall and is sealed and matched.Like this, when needle body thrusts medicine bottle, sleeve pipe will thrust in the bottle stopper with needle body, and still keep medicine bottle and extraneous being sealed and matched.Through hole on the sleeve pipe is communicated with trachea by the groove of sleeve pipe inboard, and the thin film of trachea and trachea end constitutes a semi-enclosed air chamber.When needle body thrust medicine bottle, the through hole on the sleeve pipe was positioned at medicine bottle, and the trachea on the sleeve pipe is positioned at the medicine bottle outside, and like this, trachea and thin film are just introduced the air in the medicine bottle outside the bottle, and came with ambient atmosphere is isolated.When syringe by needle body in medicine bottle during injection liquid, medicine bottle inner liquid medicine capacity increases, the air in the medicine bottle is squeezed, pressure increases.So just cause the air pressure of thin film both sides inconsistent, the air pressure in the medicine bottle can promote thin film and outwards bloat and think that air provides more space in the medicine bottle, and the nursing staff is just lighter when injection liquid.As a same reason, when outside aspiration medicinal liquid, medicine bottle inner liquid medicine capacity reduces, the gas compartment increases in the medicine bottle, and air pressure reduces, and thin film can push thin film to reduce the gas compartment in trachea under the atmospheric pressure effect, so just increase gas pressure in the medicine bottle, helped outwards to extract smoothly medicinal liquid.This dispensing diluting device relies on the thin film on the trachea to regulate gas pressure in the medicine bottle automatically, need not manual intervention, makes up a prescription or very convenient when diluting operation.
As improvement, described sleeve pipe is arranged to be adjacent to the wedge shape that cooperates with the needle body outer wall away from an end of needle guard.
Cannula tip is arranged to wedge shape, when thrusting medicine bottle, sleeve pipe can be thrust in the bottle stopper smoothly with needle body, it is more smooth and easy to operate.
As further improvement, be abducent horn-like away from telescopic trachea end.
Horn-like to external diffusion is arranged in the trachea outer end, can increases the extendable room of thin film, help to improve the stable gas pressure when taking out injection liquid.
In sum, adopt the dispensing diluting device of this structure, rational in infrastructure, can cooperate and take out injection liquid and add and subtract the medicine bottle internal pressure automatically, and easy to operate, be adapted at various make up a prescription or the dilute liquid medicine occasion is used.
Description of drawings
In conjunction with the accompanying drawings this utility model is described in further details:
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 is needle body, and 2 is needle guard, and 3 is sleeve pipe, and 4 is sealing shroud, and 5 is trachea, and 6 is thin film, and 7 is through hole, and 8 is groove.
The specific embodiment
As shown in Figure 1, this dispensing diluting device comprises needle body 1, and needle body 1 upper end is installed with the needle guard 2 that cooperates with the injector syringe plug-in mounting, needle body 1 and injector syringe can be linked together by needle guard 2.Needle body 1 outer cover is equipped with sleeve pipe 3, and sleeve pipe 3 is a stainless pipe, and the internal diameter of sleeve pipe 3 is bigger slightly than needle body 1 external diameter.Inboard, sleeve pipe 3 upper end is provided with sealing shroud 4, and sealing shroud 4 is the annulus of being made by silica gel.Sleeve pipe 3 is near an end of needle guard 2, and just sleeve pipe 3 upper ends are pressed together to in-flanges and with sealing shroud 4 and sleeve pipe 3.Sealing shroud 4 inwalls and needle body 1 outer wall compress and are sealed and matched, and like this, sleeve pipe 3 just is tightly connected together by sealing shroud 4 and needle body 1.Sleeve pipe 3 is away from an end of needle guard 2, and just the cross section of sleeve pipe 3 lower end sidewalls is wedge shape, and is adjacent to needle body 1 setting, and like this, needle body 1 is when thrusting medicine bottle, and sleeve pipe 3 also can thrust the bottle stopper of medicine bottle thereupon smoothly.Sleeve pipe 3 tops are installed with trachea 5, and trachea 5 is a pipe, are obliquely installed, and trachea 5 lower ends are communicated with sleeve pipe 3 inner chambers.It is horn-like that trachea 5 upper ends are arranged to expand outwardly, and sealing has been adjacent to rubber-like thin film 6 on trachea 5 upper port, and thin film 6 is according to the different strains that take place of both sides air pressure.Sleeve pipe 3 bottoms are provided with the through hole 7 that connects sleeve pipe 3 sidewalls, and through hole 7 is a circular hole.Sleeve pipe 3 inwalls are provided with groove 8, and groove 8 vertically is provided with, and groove 8 upper ends are communicated with trachea 5 inwalls, and groove 8 lower ends are communicated with through hole 7 inwalls.Like this, thin film 6 inboards, trachea 5, groove 8 and through hole 7 just are linked to be a complete air flue.
When using this dispensing diluting device, needle guard 2 is inserted on the injector syringe, then needle body 1 is communicated with sleeve pipe 3 and thrusts together in the medicine bottle, this moment, through hole 7 was positioned at medicine bottle, and trachea 5 is positioned at outside the medicine bottle, and trachea 5 is connected to the cavity of sealing by through hole 7.The pulling injector push-rod begins to aspirate the medicinal liquid in the medicine bottle, and amount of liquid medicine reduces gradually, and gas volume enlarges relatively in the medicine bottle, and air pressure reduces gradually.At this moment, thin film 6 inside pressure are less than external atmosphere pressure, and atmospheric pressure promotes thin film 6 and moves in trachea 5.So just replenished the gas flow in the medicine bottle, improved gas pressure in the medicine bottle, made aspiration medicinal liquid more smooth and easy.As a same reason, when injection liquid in medicine bottle, amount of liquid medicine increases, gas is compressed in the medicine bottle, thin film 6 is to the direction distortion away from trachea 5, can play the effect that reduces gas pressure in the medicine bottle for gas in the medicine bottle provides more parking spaces like this, help in medicine bottle, to inject smoothly medicine.
Claims (3)
1. dispensing diluting device, comprise the needle body (1) and the needle guard (2) that are fixed together, it is characterized in that: needle body (1) outer cover is equipped with sleeve pipe (3), sleeve pipe (3) inwall near needle guard (2) is installed with the sealing shroud (4) that seals compression fit with needle body (1) outer wall, sleeve pipe (3) away from needle guard (2) is provided with through hole (7), be installed with the trachea (5) that is communicated with sleeve pipe (3) inner chamber near on sleeve pipe (3) outer wall of needle guard (2), sleeve pipe (3) inwall is provided with the groove (8) that is communicated with through hole (7) and trachea (5), is pasted with elastic film (6) away from sealing on trachea (5) port of sleeve pipe (3).
2. dispensing diluting device as claimed in claim 1 is characterized in that: described sleeve pipe (3) is arranged to be adjacent to the wedge shape that cooperates with needle body (1) outer wall away from an end of needle guard.
3. dispensing diluting device as claimed in claim 1 or 2 is characterized in that: trachea (5) end away from sleeve pipe (3) is abducent horn-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120086526 CN202027920U (en) | 2011-03-29 | 2011-03-29 | Medicine dispensing diluter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120086526 CN202027920U (en) | 2011-03-29 | 2011-03-29 | Medicine dispensing diluter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202027920U true CN202027920U (en) | 2011-11-09 |
Family
ID=44890236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120086526 Expired - Fee Related CN202027920U (en) | 2011-03-29 | 2011-03-29 | Medicine dispensing diluter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202027920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792792A (en) * | 2013-10-16 | 2016-07-20 | 维格恩公司 | Device for interfacing a flask to be perforated |
-
2011
- 2011-03-29 CN CN 201120086526 patent/CN202027920U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792792A (en) * | 2013-10-16 | 2016-07-20 | 维格恩公司 | Device for interfacing a flask to be perforated |
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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: 20111109 Termination date: 20120329 |