CN213311729U - Bottle stopper puncture needle device - Google Patents
Bottle stopper puncture needle device Download PDFInfo
- Publication number
- CN213311729U CN213311729U CN202021733505.6U CN202021733505U CN213311729U CN 213311729 U CN213311729 U CN 213311729U CN 202021733505 U CN202021733505 U CN 202021733505U CN 213311729 U CN213311729 U CN 213311729U
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- needle
- air
- needle tube
- tube
- infusion
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a bottle plug impales syringe needle device, including tonifying qi needle tubing, infusion needle tubing, needle file, air cleaner, the sealed cup joint in the tonifying qi needle tubing outside of infusion needle tubing, has strengthened the fastness of syringe needle, and air cleaner installs on the needle file, and tonifying qi needle tubing passes the needle file and connects air cleaner, can prevent effectively that bacterium from getting into in the air in the medicine. The side edges of the air-replenishing needle tube and the infusion needle tube are respectively provided with an air-replenishing port and a liquid inlet, so that the needle tube can be prevented from being blocked by scraps. The utility model discloses a bottle plug impales syringe needle device can effectively strengthen the intensity of syringe needle, and can prevent that the piece from getting into in the syringe needle, has syringe needle intensity height, sanitary advantage.
Description
Technical Field
The utility model relates to an injection field, concretely relates to bottle plug impales syringe needle device.
Background
In the current industry, the sterility test of medicines mainly adopts a membrane filtration method, which is a sterility test method specified in pharmacopoeias of all countries and Chinese pharmacopoeias, is suitable for the sterility test of any type of medicines and has the characteristics of wide applicability and high accuracy. The membrane filtration process may be carried out using a closed membrane filtration system or a conventional open membrane filtration system, but a closed membrane filtration system is preferred.
The closed membrane filtration system generally comprises a totally-enclosed bacteria-collecting incubator and a bacteria-collecting instrument. The totally-enclosed bacteria-collecting incubator consists of a double-core needle head, a plastic soft catheter and a filter cylinder. When the device is used, the plastic flexible conduit is placed in a pipe groove of a peristaltic pump of the bacteria collecting instrument, and a double-core needle head arranged at one end of the liquid inlet pipe is inserted into a plug of a container for test liquid or flushing liquid and the like. Continuously injecting a sample into a filter cartridge of a bacteria collection incubator through a sampling tube under the action of directional peristaltic pressurization of a bacteria collection instrument, intercepting bacteria on a filter membrane of the filter cartridge (the aperture of the filter membrane is 0.2 mu m or 0.45 mu m), finally injecting a culture medium, culturing at a specified temperature, and observing whether bacteria grow.
The prior needle has the following defects:
the mode of arranging of traditional two core syringe needles mainly uses side by side structure as the main, and when inserting the rubber buffer, thin tonifying qi needle tubing is bent easily or is broken, leads to the unable continuation of product to use.
Two needle tubes of the traditional double-core needle are inclined-mouth needle heads, and rubber scraps are easily brought into the needle tubes by inserting rubber plugs, so that blockage is caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in that, to current syringe needle break easily or buckle, bring the rubber piece into the problem of needle tubing easily when inserting the rubber buffer, provide a bottle plug impales syringe needle device.
The utility model discloses a following technical scheme realizes above-mentioned purpose: a stopper piercing needle apparatus, wherein: the air supplementing needle tube is sleeved outside the air supplementing needle tube, the air supplementing needle tube penetrates through the needle seat to be connected with the air filter, and the infusion needle tube is connected with a liquid outlet on the needle seat;
the air replenishing needle tube is provided with an air replenishing port, and the air replenishing port is arranged on the side surface of the air replenishing needle tube;
the infusion needle tube is provided with a liquid inlet which is arranged on the side surface of the infusion needle tube.
As a further optimization scheme of the utility model, be equipped with millipore filtration in the air cleaner, millipore filtration keeps apart air cleaner's air inlet and tonifying qi needle tubing. Through setting up millipore filtration, realize the bacterium to in the air and filter, prevent that the sample is false positive.
As a further optimization scheme of the utility model, the diameter of the air supplementing port is 2.5mm-3mm, and the diameter of the liquid inlet is 3mm-3.5 mm.
As a further optimization scheme of the utility model, the two sides of the needle seat are provided with side wings. The flanks are arranged on the two sides of the needle seat, so that the contact area between the fingers of an operator and the needle seat is increased, and the problem of labor waste in the process of inserting the needle head is avoided.
The utility model has the advantages that:
the transfusion needle tube is sleeved outside the air supplementing needle tube, so that the problem that the needle is broken when a thick rubber plug is inserted is effectively solved.
The liquid inlet and the air supplementing port are arranged on the side edges of the infusion needle tube and the air supplementing needle tube, so that the problem that when the needle head is inserted into rubber, scraps enter the needle head to cause blockage is effectively solved.
The flanks are arranged on the two sides of the needle seat, so that the contact area between the fingers of an operator and the needle seat is increased, and the problem of labor waste in the process of inserting the needle head is avoided.
Through setting up air cleaner, can prevent effectively that the bacterium in the air from getting into the sample in, leading to false positive risk.
Drawings
Fig. 1 is a schematic structural view of a bottle stopper puncturing needle device of the present invention;
fig. 2 is a side sectional view of a stopper piercing spike device of the present invention;
FIG. 3 is a schematic view of a needle seat structure of a bottle stopper puncturing needle device of the present invention;
FIG. 4 is a schematic view of the air-replenishing needle tube of the bottle stopper puncturing needle device of the present invention;
FIG. 5 is a schematic view of an infusion needle structure of a stopper piercing needle device of the present invention;
1-air-supplementing needle tube, 2-transfusion needle tube, 3-needle seat, 4-air filter, 11-air-supplementing opening, 21-liquid inlet, 31-liquid outlet, 32-side wing and 41-microporous filter membrane.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1, a bottle plug impales syringe needle device shown in fig. 2, including tonifying qi needle tubing 1, infusion needle tubing 2, needle file 3, air cleaner 4, tonifying qi needle tubing 1, infusion needle tubing 2, air cleaner 4 all installs on needle file 3, and tonifying qi needle tubing 1, infusion needle tubing 2 and air cleaner 4 are located the upper and lower both sides of needle file 3 respectively, infusion needle tubing 2 cup joints outside tonifying qi needle tubing 1, seal through epoxy, design through 2 set tonifying qi needle tubing 1 of infusion needle tubing, design the bobby needle in the bobby needle, can add intensity in order, and reduce the lifting surface area, reach the mesh that inserts thicker rubber buffer and can not break. The length of the transfusion needle tube 2 is shorter than that of the air-replenishing needle tube 1, and the air-replenishing needle tube 1 penetrates through the needle seat 3 to be connected with an air filter 4. As shown in fig. 3, a liquid outlet 31 is arranged on the needle base 3, and the infusion needle tube 2 is connected with the liquid outlet 31 on the needle base 3.
As shown in fig. 4 and 5, an air replenishing port 11 is arranged on the side surface of the air replenishing needle tube 1, a liquid inlet 21 is arranged on the side surface of the infusion needle tube 2, the diameter of the air replenishing port 11 is 2.5mm-3mm, and the diameter of the liquid inlet 21 is 3mm-3.5 mm. Through changing bevel connection needle tubing feed liquor mode into side mouth feed liquor mode, the oral area is opened at the side, solves in the piece gets into the syringe needle when the needle mouth inserts the rubber buffer, avoids leading to blockking up.
As shown in fig. 3, the two sides of the needle seat 3 are provided with the side wings 32, so that the contact area between the fingers and the needle seat 3 is increased when the needle seat is used by an operator by widening the double-wing structure, and the problem that the operator is more laborious to insert the needle into the rubber plug is avoided.
As shown in figure 2, the air filter 4 consists of an upper cover, a microporous filter membrane and a lower cover, the components are combined together by ultrasonic welding technology, and the air supplement can prevent the negative pressure in the sample container from preventing the solution from being output normally. The air filter 4 can effectively prevent bacteria in the air from entering the test sample, which leads to the risk of false positive of the medicine.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (4)
1. A stopper piercing spike device characterized by: the infusion needle comprises an air replenishing needle tube (1), an infusion needle tube (2), a needle seat (3) and an air filter (4), wherein the air replenishing needle tube (1), the infusion needle tube (2) and the air filter (4) are all arranged on the needle seat (3) and are respectively positioned on the upper side and the lower side of the needle seat (3), the infusion needle tube (2) is sleeved outside the air replenishing needle tube (1), the air replenishing needle tube (1) penetrates through the needle seat (3) to be connected with the air filter (4), and the infusion needle tube (2) is connected with a liquid outlet (31) on the needle seat (;
the air replenishing needle tube (1) is provided with an air replenishing port (11), and the air replenishing port (11) is arranged on the side surface of the air replenishing needle tube (1);
the transfusion needle tube (2) is provided with a liquid inlet (21), and the liquid inlet (21) is arranged on the side surface of the transfusion needle tube (2).
2. The stopper piercing needle device of claim 1, further characterized by: a microporous filter membrane (41) is arranged in the air filter (4), and the microporous filter membrane (41) isolates an air inlet of the air filter (4) from the air replenishing needle tube (1).
3. The stopper piercing needle device of claim 1, further characterized by: the diameter of the air supply port (11) is 2.5mm-3mm, and the diameter of the liquid inlet (21) is 3mm-3.5 mm.
4. The stopper piercing needle device of claim 1, further characterized by: two sides of the needle seat (3) are provided with side wings (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021733505.6U CN213311729U (en) | 2020-08-19 | 2020-08-19 | Bottle stopper puncture needle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021733505.6U CN213311729U (en) | 2020-08-19 | 2020-08-19 | Bottle stopper puncture needle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213311729U true CN213311729U (en) | 2021-06-01 |
Family
ID=76097714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021733505.6U Active CN213311729U (en) | 2020-08-19 | 2020-08-19 | Bottle stopper puncture needle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213311729U (en) |
-
2020
- 2020-08-19 CN CN202021733505.6U patent/CN213311729U/en active Active
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