CN215179055U - Blood foam removing device in blood sampling tube - Google Patents
Blood foam removing device in blood sampling tube Download PDFInfo
- Publication number
- CN215179055U CN215179055U CN202121531249.7U CN202121531249U CN215179055U CN 215179055 U CN215179055 U CN 215179055U CN 202121531249 U CN202121531249 U CN 202121531249U CN 215179055 U CN215179055 U CN 215179055U
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- Prior art keywords
- blood
- collection
- board
- check valve
- foam
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- Expired - Fee Related
Links
- 210000004369 blood Anatomy 0.000 title claims abstract description 43
- 239000008280 blood Substances 0.000 title claims abstract description 43
- 239000006260 foam Substances 0.000 title claims abstract description 34
- 238000010241 blood sampling Methods 0.000 title claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 32
- 239000010902 straw Substances 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 19
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- 229920000742 Cotton Polymers 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
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- 238000001514 detection method Methods 0.000 description 6
- 210000003743 erythrocyte Anatomy 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 206010018910 Haemolysis Diseases 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
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- 206010067484 Adverse reaction Diseases 0.000 description 2
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006838 adverse reaction Effects 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 229960002897 heparin Drugs 0.000 description 2
- 229920000669 heparin Polymers 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 102000054727 Serum Amyloid A Human genes 0.000 description 1
- 108700028909 Serum Amyloid A Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 210000000601 blood cell Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 108010020275 fibrin receptor Proteins 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
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- 238000004062 sedimentation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Investigating Or Analysing Biological Materials (AREA)
Abstract
The utility model relates to a blood foam remove device in blood sampling pipe, its structure does, and plastic housing is inside cavity formula structure, and plastic housing's upper end links to each other with pipette suction bulb, and plastic housing's bottom sets up the weeping board, installs the second check valve on the weeping board, and the straw passes in the weeping board stretches into plastic housing's inner chamber and with weeping board fastening connection, and the one end that the straw stretched into plastic housing sets up first check valve, first check valve and weeping board between be equipped with one-level umbrella face baffle, one-level collecting plate, second grade umbrella face baffle and second grade collecting plate from top to bottom in proper order. The foam can be eliminated by a natural defoaming method.
Description
Technical Field
The utility model relates to a laboratory test auxiliary device especially relates to a blood foam remove device in blood sampling pipe.
Background
In order to obtain accurate test results in clinic to truly reflect the progress of the disease and the treatment effect of the disease, the correctness of the submitted specimen is a key factor. The detection of venous blood samples is the most common clinical auxiliary examination and can assist the diagnosis of certain diseases. By reviewing the abnormal results, the treatment effect can be known, and the adjustment of the treatment scheme can be guided. In the detection process of items such as blood routine, blood sedimentation, serum amyloid A and the like, the foam in the blood sample in the blood sampling tube can influence the sample suction amount of a sample suction needle of an instrument, so that the detection result is inaccurate. Therefore, in the related test items, it is important to remove the bubbles in the blood collection tube to improve the accuracy of the test result.
At present, the foam of blood in a blood sampling tube is removed in a laboratory, a medical cotton swab is mostly adopted, the foam in the blood is sucked out through the adsorption effect of cotton, two problems can be caused by the method, the first problem is that the medical cotton swab sucks out the foam in the blood, and meanwhile, part of blood in the blood sampling tube can be sucked away, so that the sample amount in the blood sampling tube is reduced, and the quality of an inspection result is influenced. The second problem is that the cotton yarn on the medical cotton swab has a risk of falling off in the adsorption process, and once the cotton yarn falls into a sample, the cotton yarn can cause the blockage of a sample needle of detection equipment in the detection process, so that the detection equipment fails, and the sample cannot be detected.
The common defoaming principle includes physical defoaming method, mechanical defoaming method, chemical defoaming method and natural defoaming method. Adverse reactions of blood cells should be avoided as much as possible in the process of defoaming blood, and hemolysis and platelet activation should be avoided as much as possible. The hemolysis is mainly caused by damage of erythrocytes, and during the defoaming process of the physical defoaming method and the mechanical defoaming method, the shearing force applied to erythrocytes is large, which may cause rupture of erythrocytes, and further cause hemolysis (adverse reaction of erythrocytes) of blood samples. The phenomenon of platelet activation refers to the reaction of platelets to deform, adhere, aggregate and release under the action of an irritant. Once activated, platelets immediately cause a series of biochemical reactions such as the increase or decrease of the concentration in the platelets, the recombination and construction of a framework protein network, the expression of a platelet membrane fibrin receptor and the like. Chemical defoaming methods readily trigger platelet activation.
Disclosure of Invention
The utility model provides a to the problem that exists among the above-mentioned prior art, provide a blood foam remove device in blood sampling pipe, solved among the prior art blood foam in the blood sampling pipe and got rid of the unsatisfactory problem of effect.
The technical scheme of the utility model as follows:
the blood foam removing device in the blood sampling tube comprises a plastic shell, a pipette suction ball, a suction tube, a first check valve, a first-stage umbrella fabric clapboard, a first-stage collecting plate, a second-stage umbrella fabric clapboard, a second-stage collecting plate, a second check valve and a liquid leakage plate; the plastic casing be inside cavity formula structure, plastic casing's upper end links to each other with pipette auricle ball, plastic casing's bottom sets up the weeping board, installs the second check valve on the weeping board, the straw passes the weeping board and stretches into in plastic casing's the inner chamber and with weeping board fastening connection, the one end that the straw stretched into plastic casing sets up first check valve, first check valve and weeping board between be equipped with one-level umbrella face baffle, one-level collection board, second grade umbrella face baffle and second grade collection board from top to bottom in proper order, one-level umbrella face baffle, second grade umbrella face baffle fixed with the straw, one-level collection board, second grade collection board fixed with plastic casing.
The pipette ear suction ball is connected with the plastic shell through the rubber connecting port.
The opening and closing flow directions of the first one-way valve and the second one-way valve are opposite.
Gaps are reserved among the first-stage collecting plate, the second-stage collecting plate and the suction pipe, and the size of the gaps is larger than the diameter of the suction pipe.
The first-stage collecting plate and the second-stage collecting plate are obliquely arranged, and the included angle between the lower surfaces of the first-stage collecting plate and the second-stage collecting plate and the horizontal plane is 20-40 degrees.
The length of the suction pipe extending out of the shell is not less than that of the conventional blood sampling pipe.
The suction pipe is tightly connected with the liquid leakage plate in a sealing way.
The invention has the following advantages and effects:
1. the uppermost end of the suction pipe is provided with a first one-way valve, the liquid leakage plate is provided with a second one-way valve, the opening and closing flow directions of the first one-way valve and the second one-way valve are opposite, so that when the suction ball of the pipette is squeezed, the second one-way valve is opened, the first one-way valve is closed, and air exhaust or foam removal blood can be discharged; when the pipette ball is loosened, the first one-way valve is opened, the second one-way valve is closed, and blood foam can be sucked from the blood collection tube through the suction tube.
2. The leakage plate is tightly and tightly connected with the suction pipe in a sealing way, so that the suction pipe can be fixed and prevented from moving. 3. Through the one-level umbrella face baffle, the one-level collecting plate and the second-level umbrella which are arranged from top to bottom in sequence
The blood that contains the foam is sucked first check valve by pipette auricle ball, on the umbrella face is arrived in the water conservancy diversion via first check valve to the umbrella face, because the effect of gravity, the blood that contains the foam can flow on the umbrella face from top to bottom, and liquid film thickness reduces gradually, and when the liquid film was thinner, when the bubble diameter was greater than liquid film thickness, the bubble can break and the desorption.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a suction pipe, 2, a liquid leakage plate, 3, a plastic shell, 4, a second-stage collecting plate, 5, a second-stage umbrella surface clapboard, 6, a first-stage collecting plate, 7, a first-stage umbrella surface clapboard, 8, a first one-way valve, 9 and a pipette suction bulb.
Detailed Description
Examples
As shown in the figure, the blood foam removing device in the blood sampling tube comprises a plastic shell 3, a pipette bulb 9, a pipette 1, a first check valve 8, a first-stage umbrella fabric clapboard 7, a first-stage collecting plate 6, a second-stage umbrella fabric clapboard 5, a second-stage collecting plate 4, a second check valve and a leakage plate 2; the plastic shell 3 is of an internal cavity type structure, the upper end of the plastic shell 3 is connected with the pipette bulb 9 through a rubber connecting port, and the plastic shell can be detachably connected. The bottom of plastic casing sets up weeping board 2, installs the second check valve on the weeping board 2, and straw 1 passes the weeping board and stretches into in the inner chamber of plastic casing and with weeping board fastening sealing connection, and the length that the straw stretches out the casing is not less than the length of conventional heparin tube. The end of the suction pipe 1 extending into the plastic shell is provided with a first one-way valve 8, and the opening and closing flow directions of the first one-way valve and the second one-way valve are opposite. First check valve and weeping board between be equipped with one-level umbrella face baffle, one-level collecting plate, second grade umbrella face baffle and second grade collecting plate from top to bottom in proper order, one-level umbrella face baffle, second grade umbrella face baffle fixed with the straw, one-level collecting plate, second grade collecting plate fixed with plastic casing.
Gaps are reserved among the first-stage collecting plate, the second-stage collecting plate and the suction pipe, and the size of the gaps is larger than the diameter of the suction pipe.
The first-stage collecting plate and the second-stage collecting plate are obliquely arranged, and the included angle between the lower surfaces of the first-stage collecting plate and the second-stage collecting plate and the horizontal plane is 20-40 degrees.
The during operation, the extrusion pipette suction ear, the gas in the plastic casing inner chamber is discharged through the second check valve, thereby make the plastic casing inner chamber form the negative pressure, put into the intraductal blood foam of blood sampling with the straw, loosen the extrusion to pipette suction ear, the second check valve is closed, the blood with foam inhales the straw, flow into the casing inner chamber through first check valve, through extrusion and absorption many times, the blood with foam can flow into the casing inner chamber from the heparin tube, by the water conservancy diversion on the one-level umbrella face baffle, because the effect of gravity, the blood that contains the foam can flow from top to bottom on one-level umbrella face baffle, liquid film thickness reduces gradually, when the liquid film is thinner, when the bubble diameter is greater than liquid film thickness, the bubble can break and the desorption. The defoaming principle is caused by using a natural defoaming method, liquid of a liquid film between foams seeps along a Plateau interface, gas between the foams diffuses, and a film of a plurality of single foams breaks. Blood foam carries out the syneresis under the action of gravity, and the liquid film of foam thins gradually, and liquid film thickness reduces gradually and then causes the rupture of foam and realize the defoaming. After carrying out the defoaming for the first time, blood flows through the outer wall of straw through the one-level collecting plate, gets into second grade umbrella face baffle and carries out the defoaming for the second time, through the second grade collecting plate, in the second check valve on the weeping board flows the blood vessel of back production, the first check valve of straw top can be guaranteed to be closed when extrudeing pipette auricle, open when releasing pipette auricle, open when the second check valve on the weeping board can guarantee to extrude pipette auricle, close when releasing pipette auricle.
The installation mode, the connection mode or the setting mode of all the components are common mechanical modes, the sealing connection is that two connecting pieces are connected and simultaneously sealed, the specific structures, the models and the coefficient indexes of all the components are self-contained technologies, and the implementation can be carried out as long as the beneficial effects of the components are achieved.
Unless otherwise stated, terms of orientation such as "up, down, left, right, front, back, inner, outer, vertical and horizontal" and the like included in the terms merely represent the orientation of the terms in a conventional use state or are colloquially understood by those skilled in the art, and should not be construed as limiting the terms, and meanwhile, the terms of the series of terms such as "first," "second," and "third" and the like do not represent specific numbers and sequences, but are merely used for name differentiation, and the terms "include," "include," or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The blood foam removing device in the blood sampling tube is characterized by comprising a plastic shell, a pipette bulb, a pipette, a first check valve, a first-stage umbrella fabric clapboard, a first-stage collecting plate, a second-stage umbrella fabric clapboard, a second-stage collecting plate, a second check valve and a leakage plate; the plastic casing be inside cavity formula structure, plastic casing's upper end links to each other with pipette auricle ball, plastic casing's bottom sets up the weeping board, installs the second check valve on the weeping board, the straw passes the weeping board and stretches into in plastic casing's the inner chamber and with weeping board fastening connection, the one end that the straw stretched into plastic casing sets up first check valve, first check valve and weeping board between be equipped with one-level umbrella face baffle, one-level collection board, second grade umbrella face baffle and second grade collection board from top to bottom in proper order, one-level umbrella face baffle, second grade umbrella face baffle fixed with the straw, one-level collection board, second grade collection board fixed with plastic casing.
2. The device for removing blood foam in a blood collection tube according to claim 1, wherein the pipette bulb is connected to the plastic housing through a rubber connection port.
3. The device for removing blood foam in a blood collection tube according to claim 1, wherein the first one-way valve and the second one-way valve are arranged in opposite directions of opening and closing flow.
4. The device for removing blood foam in a blood collection tube according to claim 1, wherein a gap is left between the primary collection plate and the secondary collection plate and the suction tube, and the size of the gap is larger than the diameter size of the suction tube.
5. The device for removing blood foam in a blood collection tube according to claim 1, wherein the primary collection plate and the secondary collection plate are arranged obliquely, and the included angle between the lower surfaces of the primary collection plate and the secondary collection plate and the horizontal plane is 20-40 degrees.
6. The device for removing blood foam in a blood collection tube according to claim 1, wherein the length of the suction tube extending out of the housing is not less than the length of a conventional blood collection tube.
7. The device for removing blood foam in a blood collection tube according to claim 1, wherein the suction tube is tightly and hermetically connected with the leakage plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121531249.7U CN215179055U (en) | 2021-07-07 | 2021-07-07 | Blood foam removing device in blood sampling tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121531249.7U CN215179055U (en) | 2021-07-07 | 2021-07-07 | Blood foam removing device in blood sampling tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215179055U true CN215179055U (en) | 2021-12-14 |
Family
ID=79400653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121531249.7U Expired - Fee Related CN215179055U (en) | 2021-07-07 | 2021-07-07 | Blood foam removing device in blood sampling tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215179055U (en) |
-
2021
- 2021-07-07 CN CN202121531249.7U patent/CN215179055U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |