CN211511824U - Micro blood taking tube - Google Patents
Micro blood taking tube Download PDFInfo
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- CN211511824U CN211511824U CN202021329746.4U CN202021329746U CN211511824U CN 211511824 U CN211511824 U CN 211511824U CN 202021329746 U CN202021329746 U CN 202021329746U CN 211511824 U CN211511824 U CN 211511824U
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- capillary
- gasbag
- straw
- connecting portion
- blood collection
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model provides a micro-blood collection tube, including the capillary straw that leads to in both ends opening and, the one end of capillary straw is equipped with the gasbag, and the gasbag includes connecting portion and gasbag body, and a pot head of connecting portion is established in the outside of capillary straw, and the other end and the gasbag body of connecting portion are connected, are equipped with the air vent on the gasbag body, are equipped with scale, its characterized in that on the lateral wall of capillary straw: the normal section of the inner cavity of the capillary suction pipe is in a polygonal star shape, and the vertex angle of the star shape is an acute angle. The beneficial effects of the utility model are that the cross-section of star can increase the capillary phenomenon of capillary straw, shortens liquid level rise time for the blood sampling progress reduces the situation of lining up.
Description
Technical Field
The utility model relates to a medical instrument, concretely relates to micro-blood taking tube.
Background
The micro blood collecting tube is a common tool for collecting blood in medical departments such as hospitals and the like, and is made of a glass tube with a smaller inner diameter and two open ends which are communicated, one end of the micro blood collecting tube is contacted with the blood to be collected when the blood is collected, the blood to be collected automatically enters the interior of the micro blood collecting tube by utilizing the capillary principle, the volume requirement is generally met when the blood is collected, and the micro blood collecting tube is marked with volume scales, such as 5 microliter, 10 microliter, 15 microliter and 20 microliter … … 50 microliter.
Patent 201320219927.5 discloses a self-priming quantitative micro blood collection tube, including microtube and one end opening and the hollow gasbag that can extrude of both ends opening and intercommunication, the microtube is made by hydrophilic material, and the one end of microtube is inserted and is fixed in the port of gasbag, and the inner chamber of microtube and the inner chamber intercommunication of gasbag, it has the air vent with the inner chamber intercommunication of this gasbag to open on the wall of gasbag. The blood sampling device does not need to carry out hydrophilic treatment, has low cost and easy popularization, and greatly improves the accuracy and the efficiency of the blood sampling process.
In the moving process of the micro blood collection tube in the prior art, the liquid level is easy to rise or fall, the detection accuracy is affected, blood collection tasks are daily, and the tasks are very heavy, so that medical workers need to keep a fast blood collection speed and guarantee the blood collection amount to be accurate as much as possible. The speed that can so rationally draw blood in the aspect of the design of micro-blood collection tube then can accelerate, can medical personnel carry out the process convenience more that draws blood, has also accelerated the progress of drawing blood and has reduced the condition of lining up.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, convenient operation, efficient micro-blood taking tube of blood sampling.
The technical scheme of the utility model is that:
the micro blood collection tube comprises a capillary suction tube with openings at two ends and a through hole, wherein an air bag is arranged at one end of the capillary suction tube and comprises a connecting part and an air bag body, a sleeve of the connecting part is arranged outside the capillary suction tube, the other end of the connecting part is connected with the air bag body, an air vent is arranged on the air bag body, scales are arranged on the outer side wall of the capillary suction tube, the regular cross section of the inner cavity of the capillary suction tube is in a polygon star shape, and the vertex angle of the star.
The star-shaped section can improve the rising speed of blood in the capillary suction tube, accelerate the blood sampling progress, improve the blood sampling efficiency and reduce queuing.
The normal section of the inner cavity of the capillary suction pipe is gradually enlarged from one end to the other end.
The capillary suction pipe is gradually reduced from bottom to top, the capillary phenomenon is enhanced, and the blood sampling progress is accelerated.
The diameter of the outer side wall of the capillary suction pipe is gradually reduced from one end to the other end.
The diameter of the outer side wall of the capillary suction tube is gradually increased from bottom to top, so that the connecting part is conveniently and fixedly connected to the upper end of the capillary suction tube, and the strength of the whole micro blood collection tube is enhanced.
The capillary suction tube is made of internal plasticized PVC material.
The internal plasticization PVC grafts the plasticizer molecules to the PVC chain through covalent bonding, and the plasticizer becomes a part of the PVC through a covalent bonding way, thereby effectively avoiding the migration of the plasticizer and improving the safety of the product.
The capillary pipette is made of PPSU material.
PPSU is also called polyphenylene sulfone resin, and is stable to general acids, bases, salts, alcohols, aliphatic hydrocarbons, and the like. Good rigidity and toughness, good temperature resistance, thermal oxidation resistance, excellent creep resistance, corrosion resistance of inorganic acid, alkali and salt solution, ion radiation resistance, no toxicity, good insulativity and self-extinguishing property, and easy molding and processing. Can be cleaned, sterilized at high temperature and reused.
The utility model has more convenient use; has the advantages of simple structure, high blood sampling speed and the like.
Drawings
FIG. 1 is a schematic view of the structure of the micro blood collection tube of the present invention
FIG. 2 and FIG. 3 are schematic views of the cross-sectional structure of the micro blood collection tube of the present invention
In the figure:
1. capillary pipette 2, air bag 11, outer side wall 12 of capillary pipette, inner cavity 13 of capillary pipette and scales
14. Apex angle 21, connecting portion 22, airbag body 23, vent hole
Detailed Description
As shown in fig. 1, the utility model discloses micro blood collection tube, including the capillary suction tube 1 of both ends opening and well expert, the one end of capillary suction tube 1 is equipped with gasbag 2, and gasbag 2 includes connecting portion 21 and gasbag body 22, and a pot head of connecting portion 21 is established in capillary suction tube 1's outside, and the other end of connecting portion 21 is connected with gasbag body 22, is equipped with air vent 23 on the gasbag body 22, is equipped with scale 13 on the capillary suction tube lateral wall 11, as shown in fig. 2, fig. 3, the normal cross-section of capillary suction tube inner chamber 12 is multilateral star, and the apex angle 14 of star is the acute. The star-shaped cross section improves the contact area between the liquid level and the inner side wall of the inner cavity 12 of the capillary suction pipe, can improve the rising speed of blood in the capillary suction pipe 1, quickens the blood sampling progress, improves the blood sampling efficiency and reduces queuing.
Further, the normal section of the inner cavity 12 of the capillary pipette is gradually enlarged from one end to the other end. The capillary suction tube 1 has the advantages that the inner cavity is gradually reduced from bottom to top, the capillary phenomenon is enhanced, and the blood sampling progress is accelerated.
The diameter of the outer side wall 11 of the capillary tube is gradually reduced from one end to the other end. The diameter of the outer side wall 11 of the capillary pipette is gradually increased from bottom to top, so that the connecting part 21 is conveniently and fixedly connected to the upper end of the capillary pipette 1, and the strength of the whole micro blood collection tube is enhanced.
The capillary suction tube 1 can be made of internal plasticized PVC material or PPSU material. Can be sterilized at high temperature after being cleaned and reused, and avoids the pollution of medical waste to the environment.
Claims (5)
1. Micro-blood collection tube, including the capillary straw of both ends opening and well expert, the one end of capillary straw is equipped with the gasbag, and the gasbag includes connecting portion and gasbag body, and a pot head of connecting portion is established in capillary straw's outside, and the other end and the gasbag body of connecting portion are connected, are equipped with the air vent on the gasbag body, are equipped with scale, its characterized in that on capillary straw's the lateral wall: the normal section of the inner cavity of the capillary suction pipe is in a polygonal star shape, and the vertex angle of the star shape is an acute angle.
2. The micro blood collection tube according to claim 1, wherein: the normal section of the inner cavity of the capillary suction pipe is gradually enlarged from one end to the other end.
3. The micro blood collection tube according to claim 2, wherein: the diameter of the outer side wall of the capillary suction pipe is gradually reduced from one end to the other end.
4. The micro blood collection tube according to claim 3, wherein: the capillary suction tube is made of internal plasticized PVC material.
5. The micro blood collection tube according to claim 3, wherein: the capillary pipette is made of PPSU material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021329746.4U CN211511824U (en) | 2020-07-09 | 2020-07-09 | Micro blood taking tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021329746.4U CN211511824U (en) | 2020-07-09 | 2020-07-09 | Micro blood taking tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211511824U true CN211511824U (en) | 2020-09-18 |
Family
ID=72441680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021329746.4U Active CN211511824U (en) | 2020-07-09 | 2020-07-09 | Micro blood taking tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211511824U (en) |
-
2020
- 2020-07-09 CN CN202021329746.4U patent/CN211511824U/en active Active
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