CN215963625U - Medical quantitative sampling pipette - Google Patents
Medical quantitative sampling pipette Download PDFInfo
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- CN215963625U CN215963625U CN202122481555.0U CN202122481555U CN215963625U CN 215963625 U CN215963625 U CN 215963625U CN 202122481555 U CN202122481555 U CN 202122481555U CN 215963625 U CN215963625 U CN 215963625U
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Abstract
The application discloses a medical quantitative sampling pipette, which belongs to the technical field of medical instruments, and adopts the technical scheme that the pipette comprises a tube body, wherein the upper end of the tube body is connected with an air bag, the lower end of the tube body is connected with a pipette head, the pipette head comprises an installation outer tube inserted into the tube body and a liquid circulation inner tube which is positioned in the installation outer tube and communicated with the interior of the tube body, and a liquid cache cavity is formed between the liquid circulation inner tube and the installation outer tube; wherein, the volume in the gasbag is less than the volume sum of liquid circulation inner tube and liquid buffer memory chamber, and the volume in the gasbag is greater than the volume of liquid circulation inner tube, and quantitative imbibition and dropping liquid can be realized to this application, and easy operation, and is with low costs.
Description
Technical Field
The application belongs to the technical field of medical instruments, and more particularly relates to a medical quantitative sampling pipette.
Background
In hospitals and laboratories, when bed-side rapid diagnostic tests are performed, micro-blood sampling is often required, at present, the sampling is mainly performed through a quantitative capillary tube, then a blood sample is added into a test tube filled with a reagent for reaction or dilution, and then a quantitative reaction solution is transferred through a pipette or a quantitative pipette and added onto a detection test strip or a reagent card.
However, the above operation process needs various devices to complete the sampling and dripping actions, which is not only tedious in steps, but also high in cost.
Therefore, the development of a medical quantitative sampling pipette has become a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a medical quantitative sampling pipette, which has the advantages of capability of realizing quantitative pipette and dropping liquid, simple operation and low cost.
In order to achieve the purpose, the utility model provides the following technical scheme: a medical quantitative sampling pipette comprises a tube body, wherein the upper end of the tube body is connected with an air bag, the lower end of the tube body is connected with a pipette tip, the pipette tip comprises an installation outer tube inserted into the tube body and a liquid circulation inner tube which is positioned in the installation outer tube and communicated with the interior of the tube body, and a liquid buffer cavity is formed between the liquid circulation inner tube and the installation outer tube; the volume in the air bag is smaller than the sum of the volumes of the liquid circulation inner tube and the liquid buffer cavity, and the volume in the air bag is larger than the volume of the liquid circulation inner tube.
By adopting the technical scheme, when liquid is taken, the air bag is firstly pinched to expel air in the air bag, then the dropping head is stretched into the reagent bottle to be taken, and then the air bag is loosened, so that the liquid can enter the liquid circulation inner pipe; when liquid in the liquid flow inner tube needs to be dripped into the reagent card, the air bag only needs to be pinched again, and the liquid in the liquid flow inner tube flows out.
Wherein, because the volume in the gasbag is less than the volume sum of liquid circulation inner tube and liquid buffer memory chamber, and the volume in the gasbag is greater than the volume of liquid circulation inner tube, promptly when loosening the gasbag, inside liquid circulation inner tube can be filled completely to liquid, and unnecessary liquid can flow into liquid buffer memory intracavity, and when pinching the gasbag once more, only liquid in the liquid circulation inner tube can flow out, consequently can realize ration imbibition and dropping liquid.
The utility model is further configured to: the installation outer tube is detachably connected with the tube body.
Through adopting above-mentioned technical scheme, inhale the dripper and can sell alone with the body, convenient follow-up maintenance.
The utility model is further configured to: the outer wall of the installation outer pipe is provided with an annular convex strip, and the inner wall of the pipe body is provided with an annular clamping groove matched with the annular convex strip.
Through adopting above-mentioned technical scheme, annular sand grip and ring groove's cooperation can realize dismantling between installation outer tube and the body.
The utility model is further configured to: and connecting strips connected with the outer wall of the pipe body are arranged on two sides of the mounting outer pipe.
Through adopting above-mentioned technical scheme, the setting of connecting strip not only can be convenient for install the outer tube and be connected with the body, and can effectively avoid installing the outer tube and appear the condition lost.
The utility model is further configured to: the tube body and the air bag are both cylindrical, and the diameter of the air bag is smaller than that of the tube body.
By adopting the technical scheme, the tube body and the air bag can be obviously distinguished, and the tube body is effectively prevented from being touched by mistake when the air bag is pressed.
The utility model is further configured to: the end of the air bag is arc-shaped.
Through adopting above-mentioned technical scheme, the tip of gasbag is the curved surface, travelling comfort when can improving the user and press the gasbag.
In summary, the utility model has the following advantages:
1. when the air bag is loosened, liquid can be completely filled in the liquid circulation inner tube, redundant liquid can flow into the liquid buffer cavity, and when the air bag is pinched again, only the liquid in the liquid circulation inner tube can flow out, so that quantitative liquid absorption and liquid dropping can be realized;
2. the fixing of the outer installation pipe is realized through the matching of the annular convex strips and the annular clamping grooves, so that the installation between the water dropper and the pipe body is convenient;
3. this scheme is through setting up the connecting strip, not only can be easy to assemble the outer tube and be connected with the body, and can effectively avoid installing the outer tube the condition that loses to appear.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic structural view of the embodiment when the dripper is detached from the pipe;
fig. 3 is a schematic sectional structure diagram of the present embodiment.
Description of reference numerals: 1. a pipe body; 11. an annular neck; 2. an air bag; 3. a water dropper is sucked; 31. installing an outer pipe; 311. an annular rib; 312. a connecting strip; 32. a liquid flow-through inner tube; 33. a liquid buffer chamber.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A medical quantitative sampling pipette, as shown in figures 1-3, comprises a tube body 1, wherein the upper end of the tube body 1 is integrally connected with an air bag 2, the lower end of the tube body 1 is detachably connected with a pipette tip 3, the pipette tip 3 comprises an installation outer tube 31 inserted into the tube body 1 and a liquid circulation inner tube 32 positioned in the installation outer tube 31 and communicated with the interior of the tube body 1, and a liquid buffer cavity 33 is formed between the liquid circulation inner tube 32 and the installation outer tube 31; wherein, the volume in the air bag 2 is smaller than the sum of the volumes of the liquid circulation inner tube 32 and the liquid buffer cavity 33, and the volume in the air bag 2 is larger than the volume of the liquid circulation inner tube 32.
In one embodiment, as shown in fig. 2-3, an annular protruding strip 311 protruding outward is integrally formed on an outer wall of the outer installation tube 31, an annular clamping groove 11 matching with the annular protruding strip 311 is formed on an inner wall of the tube body 1, and the outer installation tube 31 is fixed by the mutual matching of the annular protruding strip 311 and the annular clamping groove 11, so that the installation and the detachment of the dripper 3 and the tube body 1 are facilitated.
In one embodiment, as shown in fig. 2-3, the connecting strips 312 connected to the outer wall of the tube body 1 are formed on two sides of the outer installation tube 31, so that the outer installation tube 31 can be connected to the tube body 1 conveniently through the connecting strips 312, and the outer installation tube 31 can be effectively prevented from being lost.
In one embodiment, as shown in fig. 2, the tube 1 and the airbag 2 are both cylindrical, and the diameter of the airbag 2 is smaller than that of the tube 1, so that the tube 1 and the airbag 2 can be clearly distinguished, and the airbag 2 is effectively prevented from being mistakenly touched with the tube 1 when being pressed.
In addition to the above-described embodiment, the end portion of the airbag 2 has an arc shape, that is, the end portion of the airbag 2 has a curved surface, so that the comfort when the user presses the airbag 2 can be improved.
It should be mentioned that the air bag 2, the tube body 1 and the water dropper 3 are all made of transparent materials in this embodiment.
The working process and the beneficial effects of the utility model are as follows: when liquid is taken, the air bag 2 is firstly pinched to expel the air in the air bag 2, then the dropping head 3 is extended into a reagent bottle to be taken, and then the air bag 2 is loosened, so that the liquid can enter the liquid circulation inner tube 32; when it is necessary to drop the liquid in the liquid flow tube 32 into the reagent card, the air bag 2 is pinched again, and the liquid in the liquid flow tube 32 flows out.
Wherein, because the volume in the gasbag 2 is less than the volume sum of liquid circulation inner tube 32 and liquid buffer chamber 33, and the volume in the gasbag 2 is greater than the volume of liquid circulation inner tube 32, promptly when loosening gasbag 2, liquid can fill liquid circulation inner tube 32 inside completely, and unnecessary liquid can flow into in liquid buffer chamber 33, and when pinching gasbag 2 again, only the liquid in the liquid circulation inner tube 32 can flow out, consequently can realize ration imbibition and dropping liquid.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a medical ration sampling pipette which characterized in that: the liquid storage device comprises a pipe body (1), wherein the upper end of the pipe body (1) is connected with an air bag (2), the lower end of the pipe body (1) is connected with a water dropper (3), the water dropper (3) comprises an installation outer pipe (31) inserted into the pipe body (1) and a liquid circulation inner pipe (32) which is positioned in the installation outer pipe (31) and communicated with the inside of the pipe body (1), and a liquid buffer storage cavity (33) is formed between the liquid circulation inner pipe (32) and the installation outer pipe (31); wherein, the volume in the air bag (2) is less than the sum of the volumes of the liquid circulation inner tube (32) and the liquid buffer cavity (33), and the volume in the air bag (2) is greater than the volume of the liquid circulation inner tube (32).
2. The medical quantitative sampling pipette according to claim 1, wherein: the mounting outer pipe (31) is detachably connected with the pipe body (1).
3. The medical quantitative sampling pipette according to claim 2, wherein: the outer wall of the outer installation pipe (31) is provided with an annular convex strip (311), and the inner wall of the pipe body (1) is provided with an annular clamping groove (11) matched with the annular convex strip (311).
4. The medical quantitative sampling pipette according to claim 3, wherein: and connecting strips (312) connected with the outer wall of the pipe body (1) are arranged on two sides of the mounting outer pipe (31).
5. The medical quantitative sampling pipette according to claim 1, wherein: the tube body (1) and the air bag (2) are both cylindrical, and the diameter of the air bag (2) is smaller than that of the tube body (1).
6. The medical quantitative sampling pipette according to claim 5, wherein: the end part of the air bag (2) is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122481555.0U CN215963625U (en) | 2021-10-13 | 2021-10-13 | Medical quantitative sampling pipette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122481555.0U CN215963625U (en) | 2021-10-13 | 2021-10-13 | Medical quantitative sampling pipette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215963625U true CN215963625U (en) | 2022-03-08 |
Family
ID=80569570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122481555.0U Active CN215963625U (en) | 2021-10-13 | 2021-10-13 | Medical quantitative sampling pipette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215963625U (en) |
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2021
- 2021-10-13 CN CN202122481555.0U patent/CN215963625U/en active Active
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