CN212082710U - Infusion bottle negative pressure detection device - Google Patents
Infusion bottle negative pressure detection device Download PDFInfo
- Publication number
- CN212082710U CN212082710U CN202020703347.3U CN202020703347U CN212082710U CN 212082710 U CN212082710 U CN 212082710U CN 202020703347 U CN202020703347 U CN 202020703347U CN 212082710 U CN212082710 U CN 212082710U
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- China
- Prior art keywords
- interface end
- detection device
- pressure detection
- negative pressure
- infusion bottle
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Links
- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000001802 infusion Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 16
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 238000010073 coating (rubber) Methods 0.000 claims description 3
- 238000009530 blood pressure measurement Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 239000003814 drug Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229940079593 drug Drugs 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides an infusion bottle negative pressure detection device, including pressure measurement and piercing depth, pressure measurement includes first interface end, piercing depth includes second interface end and puncture portion, and first interface end and second interface end cooperate, and puncture portion is equipped with the opening, the opening is linked together with second interface end. The beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, the measurement infusion bottle interior negative pressure value that can be accurate, it is easy and simple to handle.
Description
Technical Field
The utility model relates to the technical field of medical equipment, specifically a negative pressure detection device in infusion bottle.
Background
After large infusion medicines are filled, the air in the medicine bottle needs to be evacuated, and inert gas such as nitrogen is filled into the medicine bottle, so that the influence of oxygen in the air on the medicine liquid is reduced, and the quality of the medicines is ensured. The nitrogen is filled in the mode of firstly vacuumizing and then filling nitrogen, the process is repeated for many times, and the time is usually more than 3 times to ensure that the air in the medicine bottle is thoroughly removed.
If the final product does not reach the standard due to some factors, the product is not only influenced, but also serious consequences are caused to the production line. Therefore, the small-batch simulation production of large-infusion medicines and the preliminary detection of process links are very important for the large-batch production, especially the process detection of the vacuumizing link.
Whether the vacuum pumping process is standardized or not is an important factor for determining the purity of nitrogen in the medicine bottle, in the existing production process, the negative pressure detection in the medicine bottle usually depends on the detection of an environment signal of a vacuum pumping module in filling equipment, however, an error exists between the environment signal of the vacuum pumping module and a real negative pressure value in the medicine bottle.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a negative pressure detection device for in the equipment testing link before mass production, detect the evacuation effect in the infusion bottle.
The technical scheme of the utility model is that:
the negative pressure detection device for the infusion bottle comprises a pressure detection device and a puncture device, wherein the pressure detection device comprises a first interface end, the puncture device comprises a second interface end and a puncture part, the first interface end is matched with the second interface end, the puncture part is provided with an opening, and the opening is communicated with the second interface end.
Infusion bottle main part material adds the plug on for glass, forms sealed environment, and the opening pierces through the plug under the assistance of puncture portion, gets into inside the glass bottle, forms the gas passage in pressure measurement and the infusion bottle to realize the pressure measurement function of pressure measurement in to the infusion bottle.
The first interface end is cylindrical, a through hole is formed in the end face of the first interface end, and external threads are formed in the side wall of the first interface end.
The second interface end is of a cap-shaped structure, internal threads are arranged on the inner side wall of the second interface end, and a sealing gasket is arranged between the end face of the first interface end and the inner end face of the second interface end.
The first interface end is in threaded connection with the second interface end, so that the pressure detection device is movably connected with the puncture device, and the through hole is an airflow inlet of the pressure detection device. The sealing gasket is beneficial to improving the sealing performance of the connection between the first interface end and the second interface end and reducing the sealing requirement of threaded connection.
The sealing washer comprises an annular washer main body part, a washer protruding part perpendicular to the washer main body part is arranged on the washer main body part, an annular groove is formed in the inner end face of the second interface end, and the washer protruding part is matched with the annular groove.
The main body part of the sealing washer is a main body structure which is clamped between the end face and the inner end face to play a sealing function, and the position of the sealing washer between the end face and the inner end face can be fixed through the matching of the annular groove and the protruding part of the sealing washer, so that the sealing washer is prevented from displacing, and the sealing effect is influenced.
The outer edge of the through hole in the end face of the first interface end is provided with an annular bulge.
The puncture part is a needle tube, one end of the needle tube is a puncture end, the other end of the needle tube is a tail end, the tail end penetrates through the inner end face of the second connector end, and the outer surface of the tail end is in interference fit with the inner surface of the annular protrusion.
When first interface end is connected with the second interface end, in the tail end of needle tubing inserted annular arch, interference fit realized secondary seal, even seal ring seal became invalid, still can realize sealedly through needle tubing and annular arch, can further improve the leakproofness that first interface end and second interface end are connected to improve and detect the precision.
And the outer surface of the tail end is provided with a nitrile rubber coating.
The needle tube is a bevel needle. The opening of the bevel needle is arranged at the end face of the needle head, and the bevel needle has the advantages that the existing needle tube on the market can be utilized, and the material cost is reduced.
The needle tube is a side hole needle.
The distance between the opening and the second interface end is 0.5-1.5 cm. The position of the opening on the needle tube can be further optimized by the side hole needle, and after the needle tube is completely penetrated into the rubber plug, the opening is positioned near the inner end surface of the rubber plug, so that the phenomenon that the needle head is too long or the liquid medicine in the infusion bottle is too full is prevented, and the opening is submerged into the liquid medicine along with the needle head.
The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the negative pressure value in the infusion bottle can be accurately measured, and the operation is simple and convenient.
Drawings
FIG. 1 is a schematic view of the structure principle of the present invention
FIG. 2 is a schematic view of the structure of the pressure detecting device
FIG. 3 is a schematic view of the first interface end
FIG. 4 is a schematic structural view of a puncture device according to example 1
FIG. 5 is a schematic view of the puncture device according to example 2
FIG. 6 is a schematic view of the structure of a sealing gasket
In the figure:
1. pressure detection device 2, piercing depth 3, seal ring
11. First interface end 21, second interface end 22, piercing part
31. Gasket body portion 32 and gasket protrusion portion
111. Through hole 112, end surface 212, inner end surface
221. Opening 222, tail end
1121. Annular projection 2121 and annular groove
Detailed Description
Example 1
As shown in fig. 1, the utility model discloses
A negative pressure detection device for an infusion bottle comprises a pressure detection device 1 and a puncture device 2,
as shown in fig. 2 and 3
The pressure detection device comprises a first interface end 11, wherein the first interface end 11 is cylindrical, a through hole 111 is formed in an end face 112 of the first interface end 11, and external threads are formed in a side wall of the first interface end.
An annular protrusion 1121 is arranged on the outer edge of the through hole 111 on the end surface 112 of the first interface end 11.
As shown in fig. 4
The puncturing device comprises a second interface end 21 and a puncturing part 22, wherein the first interface end 11 is matched with the second interface end 21, the puncturing part 22 is provided with an opening 221, and the opening 221 is communicated with the second interface end 21.
The second interface end 21 is in a cap-shaped structure, internal threads are arranged on the inner side wall of the second interface end 21, and a sealing gasket 3 is arranged between the end surface 112 of the first interface end 11 and the inner end surface 212 of the second interface end 21.
The puncturing part 22 is a needle tube, one end of the needle tube is a puncturing end, the other end of the needle tube is a tail end 222, the tail end 222 penetrates through the inner end surface 212 of the second interface end, and the outer surface of the tail end 222 is in interference fit with the inner surface of the annular protrusion 1121.
The outer surface of the tail end 222 is provided with a nitrile rubber coating.
The needle tube is a bevel needle.
As shown in fig. 6
The sealing washer 3 includes an annular washer body 31, a washer protrusion 32 perpendicular to the washer body 31 is disposed on the washer body 31, an annular groove 2121 is disposed on the inner end surface 212 of the second interface end 21, and the washer protrusion 32 is engaged with the annular groove 2121.
In another embodiment 2 of the present invention,
as shown in fig. 5
The needle tube is a side hole needle.
The distance between the opening 221 and the inner end surface 212 of the second interface end 21 is 0.5-1.5 cm.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. A negative pressure detection device for an infusion bottle is characterized in that: the pressure detection device comprises a first interface end, the puncture device comprises a second interface end and a puncture part, the first interface end and the second interface end are matched, the puncture part is provided with an opening, and the opening is communicated with the second interface end.
2. The negative pressure detection device for an infusion bottle according to claim 1, characterized in that: the first interface end is cylindrical, a through hole is formed in the end face of the first interface end, and external threads are formed in the side wall of the first interface end.
3. The negative pressure detection device for an infusion bottle according to claim 2, characterized in that: the second interface end is of a cap-shaped structure, internal threads are arranged on the inner side wall of the second interface end, and a sealing gasket is arranged between the end face of the first interface end and the inner end face of the second interface end.
4. The negative pressure detection device for an infusion bottle according to claim 3, characterized in that: the sealing washer comprises an annular washer main body part, a washer protruding part perpendicular to the washer main body part is arranged on the washer main body part, an annular groove is formed in the inner end face of the second interface end, and the washer protruding part is matched with the annular groove.
5. The negative pressure detection device of an infusion bottle according to claim 4, characterized in that: the outer edge of the through hole in the end face of the first interface end is provided with an annular bulge.
6. The negative pressure detection device for an infusion bottle according to claim 5, characterized in that: the puncture part is a needle tube, one end of the needle tube is a puncture end, the other end of the needle tube is a tail end, the tail end penetrates through the inner end face of the second connector end, and the outer surface of the tail end is in interference fit with the inner surface of the annular protrusion.
7. The negative pressure detection device for the infusion bottle according to claim 6, wherein: and the outer surface of the tail end is provided with a nitrile rubber coating.
8. The negative pressure detection device of an infusion bottle according to claim 7, characterized in that: the needle tube is a bevel needle.
9. The negative pressure detection device of an infusion bottle according to claim 7, characterized in that: the needle tube is a side hole needle.
10. The negative pressure detection device for an infusion bottle according to claim 9, wherein: the distance between the opening and the second interface end is 0.5-1.5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020703347.3U CN212082710U (en) | 2020-04-30 | 2020-04-30 | Infusion bottle negative pressure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020703347.3U CN212082710U (en) | 2020-04-30 | 2020-04-30 | Infusion bottle negative pressure detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212082710U true CN212082710U (en) | 2020-12-04 |
Family
ID=73588243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020703347.3U Active CN212082710U (en) | 2020-04-30 | 2020-04-30 | Infusion bottle negative pressure detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212082710U (en) |
-
2020
- 2020-04-30 CN CN202020703347.3U patent/CN212082710U/en active Active
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