CN211214662U - Blood filter and blood filtering apparatus - Google Patents
Blood filter and blood filtering apparatus Download PDFInfo
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- CN211214662U CN211214662U CN201920467918.5U CN201920467918U CN211214662U CN 211214662 U CN211214662 U CN 211214662U CN 201920467918 U CN201920467918 U CN 201920467918U CN 211214662 U CN211214662 U CN 211214662U
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Abstract
The utility model is suitable for a blood filtration technology field provides a blood filter and blood filtration equipment, include: a blood filter comprising: the blood filter comprises a shell with a through channel, wherein the shell comprises a connecting part, a blood storage part, a filtering part and a plasma output part which are sequentially communicated; and a blood filtering component arranged in the filtering part; when the blood filter is used, the inner diameter of the connecting part is matched with the outer diameter of a suction nozzle of a pipettor. The embodiment of the utility model provides a provide a blood filter, blood filter's connecting portion can match the use with the suction nozzle of pipettor to can discharge a small amount of blood that the pipettor absorbs and strain the blood subassembly in the casing and carry out quick filtration, simple and convenient easy implementation.
Description
Technical Field
The utility model belongs to the technical field of blood filters, especially, relate to a blood filter and blood filtration equipment.
Background
Blood is a red opaque viscous liquid that flows in human blood vessels and the heart. The main components are blood plasma, blood cells, and genetic material (chromosomes and genes). Blood contains various nutrients such as inorganic salts, oxygen, and cell metabolites, hormones, enzymes, and antibodies, and has effects of supplying nutrition, regulating organ activities, and protecting against harmful substances.
Blood stores information on human health, and thus many diseases are analyzed by blood medical tests or blood tests. Firstly, human blood is extracted from a human body and then separated to obtain blood samples with different components, and then blood samples with required components are extracted.
In the prior art, blood is separated by a centrifuge to separate the blood into different component levels. However, the whole process of this separation method takes a long time, and usually requires a large amount of blood, and when the amount of blood collected is small, such as when the peripheral blood of a finger is collected straight, the separation operation of the blood is inconvenient.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a blood filter and blood filter aims at solving when the volume of taking a blood sample the inconvenient problem of blood separation.
The embodiment of the utility model provides a realize like this:
a blood filter comprising:
the blood filter comprises a shell with a through channel, wherein the shell comprises a connecting part, a blood storage part, a filtering part and a plasma output part which are sequentially communicated; and
the blood filtering component is arranged in the filtering part;
when the blood filter is used, the inner diameter of the connecting part is matched with the outer diameter of a suction nozzle of a pipettor.
Still further, the blood filter further includes:
the blood filter further includes:
and a fixing body for fixing the blood filtration component in the filter part.
Further, the fixing body is an annular fixing sleeve.
Still further, the blood filter further includes:
a sample suction pipe;
the sample suction pipe comprises a sleeving part, a storage part and a blood sampling part which are sequentially communicated;
the inner diameter of the sleeving part is matched with the outer diameter of a suction nozzle of the liquid transfer device;
the outer diameter of the storage part is matched with the inner diameter of the connecting part.
Furthermore, the end of the filter part connected with the plasma output part is contracted towards the longitudinal axis direction of the shell to form an opening at one end of the plasma output part, and the aperture of the plasma output part is gradually reduced towards the direction far away from the filter part.
Further, the diameter of the blood sampling part gradually decreases in a direction away from the storage part to form a sample suction port of the sample suction tube.
The embodiment of the utility model provides a still provide a blood filtering apparatus, blood filtering apparatus includes:
a box body; and
a blood filter storage member disposed in the case;
the blood filter storage member is provided with a plurality of blood filters as described above.
The embodiment of the utility model provides a pair of blood filter, through set up blood filter for the casing that has the through channel and set up the mode of straining the blood subassembly in the casing, the casing specifically includes connecting portion, blood storage portion, filter house and plasma output portion, and the suction nozzle through design connecting portion and pipettor matches the mode of using to can realize carrying out the collection back of a small amount of blood at the pipettor and filter through blood filter fast, simple convenient and fast, the practicality is strong.
Drawings
Fig. 1 is a cross-sectional view of a blood filter according to an embodiment of the present invention;
fig. 2 is a perspective view of a blood filter according to an embodiment of the present invention;
fig. 3 is a reference diagram illustrating a usage status of a blood filter according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of a sample suction tube according to a second embodiment of the present invention;
fig. 5 is a perspective view of a sample suction tube according to a second embodiment of the present invention;
FIG. 6 is a reference diagram of the blood filter according to the second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a blood filtering apparatus according to a third embodiment of the present invention.
Description of the main elements
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10 | |
11 |
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12 | Connecting |
111 |
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112 | |
113 |
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114 | |
13 |
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20 | |
21 |
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14 | Sleeving |
141 |
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142 | |
143 |
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30 | |
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| Blood |
32 | |
321 |
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model discloses a design a casing that has the through channel and be equipped with the blood filtering component in the casing, the casing can use with the suction nozzle phase-match of pipettor, after the pipettor absorbs blood, will the blood filtering component that the blood can be discharged blood to the blood filter after the blood filter cover is established on the suction nozzle of pipettor carries out blood separation to the realization can realize filtering, simple convenient and fast after the pipettor adopts a small amount of blood.
Example one
Referring to fig. 1 to 3, a blood filter 10 according to a first embodiment of the present invention includes a housing 11 having a through channel and a blood filtering component 12 disposed in the housing 11. Wherein:
the casing 11 includes a connecting portion 111, a blood storage portion 112, a filtering portion 113 and a plasma output portion 114 which are sequentially communicated, the blood filtering component 12 is arranged in the filtering portion 113, and when the blood filter 10 is used, the inner diameter of the connecting portion 111 matches with the outer diameter of the suction nozzle 21 of the pipette 20.
In the first embodiment of the present invention, a through channel is disposed in the housing 11, and the through channel allows blood to flow into the blood filtering assembly 12 and allows blood plasma to flow out of the blood filtering assembly. The connection portion 111 can be used in cooperation with the suction nozzle 21 of the pipette 20 to allow blood to flow in from the connection portion 111, the blood storage portion 112 is used for storing the blood flowing in from the connection portion 111, and then the blood flows through the blood filtering component 12 in the filtering portion 113 to be filtered, so that macromolecular aggregates are trapped on the blood filtering component 12, and plasma is discharged from the plasma output portion 114.
That is, after the blood is collected by the pipette 20, the connecting portion 111 of the housing 11 of the blood filter 10 is sleeved on the suction nozzle 21 of the pipette 20, and then the blood is pushed into the blood filtering component 12 in the filtering portion 113 by the pipette 20 for filtering, so that rapid filtering of a small amount of blood can be realized. Alternatively, the pipette 20 is directly discharged into the blood reservoir 112 after sucking blood with a tip, and then the blood is filtered by the blood filter module 12 in the filter unit 113 and then plasma is discharged from the plasma discharge unit 114.
Specifically, the housing 11 may be integrally formed, and the connecting portion 111, the blood storage portion 112, the filtering portion 113 and the plasma output portion 144 of the housing 11 may have respective shapes, such as a cylindrical shape of the connecting portion 111, the blood storage portion 112 and the filtering portion 113, and a conical shape of the plasma output portion 144. The connecting portion 111, the blood reservoir portion 112, and the filter portion 113 may have the same outer diameter or may have different outer diameters.
Preferably, in the present embodiment, the connecting portion 111, the blood storage portion 112 and the filtering portion 113 are cylindrical and integrally formed. Wherein, the outer diameter of connecting portion 111 is greater than the outer diameter of blood reservoir 112 and filter portion 113, and the outer diameter of blood reservoir 112 is equal with filter portion 113, and connecting portion 111 internal diameter matches with the outer diameter of suction nozzle 21 of pipettor 20, even connecting portion 111 overlaps on the suction nozzle 21 of pipettor 20 when using. One end of the filtering portion 113 connected to the plasma output portion 114 is contracted toward the longitudinal axis direction of the housing 11 to form an opening at one end of the plasma output portion 114, and the aperture of the plasma output portion 114 is gradually reduced toward a direction away from the filtering portion 113. That is, the plasma outlet 144 is substantially conical to slow the plasma flow out of the plasma outlet 144, thereby increasing the contact time between the blood and the blood filter assembly, improving the filtering effect, and facilitating the movement of the plasma to the detector for detection.
Wherein the blood filtering component 12 is composed of a plurality of layers of blood filtering membranes. In this embodiment, to ensure the filtering effect and the filtering efficiency, preferably, the blood filtering component 12 includes 10 layers of blood filtering membranes, which are stacked together, and the pores of each layer of blood filtering membrane are not completely the same, for example, the pores gradually decrease from large to small, and every two layers of blood filtering membranes are one pore, 5 blood filtering membranes with different pores, or other combinations.
Further, in the present embodiment, when the blood filter element 12 is fixed in the filter portion 113, the blood filter element 12 may be fixed in the filter portion 113 by the third medium fixing body 13, or the blood filter element 12 may be fitted into the receiving groove in such a manner that the annular receiving groove is provided in the inner wall of the filter portion 113, whereby the blood filter element 12 may be fixed to the housing 11.
When the blood filtering component 12 is fixed in the filter part 113 through the third medium fixing body 13, the blood filtering component 12 may be fixed in the fixing body 13 and then the fixing body 13 may be fixed in the housing 11, or the blood filtering component 12 may be first placed in the housing 11 and then the blood filtering component 12 may be pressed in the housing 11 by plugging the fixing body 13.
Preferably, in this embodiment, the blood filter assembly 12 is fixed in the housing 11 by placing the blood filter assembly 12 in the housing 11 and then plugging the top of the blood filter assembly 12 to compress the fixing body 13. Wherein, the fixing body 13 is an annular fixing sleeve, and a through hole for blood circulation is arranged at the center of the annular fixing sleeve. Preferably, the annular fixing sleeve is made of silica gel, and the silica gel is medical silica gel and has the advantages of safety, no toxicity and stable chemical property. In addition, the annular fixing sleeve can be designed to have an interference fit with the inner wall of the filter portion 113.
Further, in order to facilitate the outflow of the filtered plasma, a plurality of pillars are provided on the inner wall of the end of the filter unit 113 close to the plasma outlet unit 144 so as to protrude toward the center line of the filter unit 113, and the blood filter unit 12 is mounted on the pillars, so that the plasma can be smoothly discharged into the plasma outlet unit 144 after the blood filtration by the blood filter unit 12.
The embodiment of the utility model provides a pair of hemofilter sets up the mode that has the casing of lining up the passageway and set up the blood filtering component in the casing through with hemofilter, and the casing specifically includes connecting portion, blood storage portion, filter house and plasma output portion, and the mode that matches the use through the suction nozzle of design connecting portion and pipettor to can realize carrying out the quick filtration through hemofilter after the collection of a small amount of blood at the pipettor, simple convenient and fast, the practicality is strong.
Example two
Referring to fig. 4 to 6, a blood filter 10 according to a second embodiment of the present invention includes a housing 11 having a through channel, the housing 11 sequentially includes a connecting portion 111, a blood storage portion 112, a filtering portion 113, and a plasma output portion 114, the connecting portion 111 is matched with a nozzle 21 of a pipette 20, that is, an inner diameter of the connecting portion 111 is matched with an outer diameter of the nozzle 21 of the pipette 20. Be equipped with in the filter house 113 and strain blood subassembly 12, strain blood subassembly 12 and be fixed in through the fixed body 13 in the filter house 113 to and still include a suction tube 14, suction tube 14 includes cover portion 141, storage portion 142 and the portion 143 of getting blood in proper order, the internal diameter of cover portion 141 with the external diameter phase-match of suction nozzle 21 of pipettor 20, the external diameter of storage portion 412 with the internal diameter phase-match of connecting portion 111.
The embodiment of the utility model provides an in the second, casing 11 integrated into one piece, connecting portion 111, blood storage portion 112 and filter house 113 are cylindrically, and plasma output portion 114 is whole to be the centrum shape, filter house 113 with the one end that plasma output portion 114 is connected is past the longitudinal axis direction shrink of casing 11 is in order to form the opening of plasma output portion 114 one end, just the bore of plasma output portion 114 is toward keeping away from filter house 113's direction reduces gradually to make blood reduce the outflow speed after the filtration of the blood filtering component 12 in filter house 113, so that match the use with detecting instrument.
In the second embodiment of the present invention, the blood filtering component 12 includes a plurality of layers of blood filtering membranes, and the blood filtering membranes form a shape corresponding to the filtering portion 113. Preferably, the blood filter assembly 12 is composed of ten layers of blood filter membranes, the pores of the blood filter membranes are not completely the same, and the blood filter membranes are closely attached to each other to form a cylindrical blood filter assembly 12 and are disposed in the filter portion 113 of the housing 11. Through setting up multilayer filtration membrane to improve filterable effect.
Further, since the filtering membrane has a soft property, in order to prevent the whole blood filtering unit 12 from loosening or falling off from the housing 11 during use, and affecting the filtering effect, the blood filter 10 further includes a fixing body 13 for fixing the blood filtering unit 12 in the filtering portion 113.
In this embodiment, the fixing body 13 is an annular fixing sleeve, and a flow through hole is formed in the middle of the annular fixing sleeve for flowing blood. During specific installation, the blood filtering component 12 is fixed in the filtering part 111 of the shell 11, the annular fixing sleeve is pressed on the top of the blood filtering component 12, and the annular fixing sleeve 13 is arranged at one end, close to the blood storage part 112, in the filtering part 113. Specifically, in this embodiment, the annular fixing sleeve is made of stainless steel wire.
In other embodiments, the blood filtering component 12 can be fixed in the filter portion 113 of the housing 11 by fixing the blood filtering component 12 in the fixing body 13 and then fixing the fixing body 13 in the housing 11, wherein an annular retaining ring extends from an inner wall of one end of the fixing body 13 to a central point, and one end of the fixing body 13 abuts against an inner wall of the filter portion 111; or a placement groove is directly formed in the inner wall of the filter unit 111, and the blood filtration module 12 is fitted into the placement groove, whereby the blood filtration module 12 can be fixed.
Further, since the material used for blood filtration needs to be non-toxic, safe and stable, the fixing body 13 in this embodiment is preferably an elastic annular fixing sleeve made of silicone.
In the second embodiment of the present invention, the blood filter 10 further includes a sample suction tube 14, and the sample suction tube 14 is used for taking a blood sample. The pipette tip 14 includes a sleeve 141, a storage 142, and a blood sampling 143, the sleeve 141 having an inner diameter matching an outer diameter of the nozzle 21 of the pipette 20, and the connecting portion 111 having an inner diameter matching an outer diameter of the storage. The sheath 141, the storage 142 and the blood sampling 143 may be integrally formed, and the sheath 141 and the storage 142 are cylindrical and have the same inner diameter but different outer diameters, or have the same inner diameter and different outer diameters. The sample suction tube 14 in this embodiment is used to suck finger peripheral blood, and then the connection portion 111 is docked with the storage portion 142, and the blood is discharged to the blood filtration module 12 by the pushing force of the pipette 20 for filtration, so that one end of the blood sampling portion 143 of the sample suction tube 14 needs to have a small diameter so as to suck blood. That is, the diameter of the blood sampling part 143 gradually decreases in a direction away from the storage part 142 to form a sample suction port of the sample suction tube 14
When the blood filtering component is used specifically, the sample suction pipe 14 is firstly sleeved on the suction nozzle 21 of the pipette 20, after tip blood of a finger is sucked, the connecting part 111 is sleeved on the sample suction pipe 13, and then the blood in the sample suction pipe 14 is pressed out to the blood storage part 112 by the pipette 20 so that the blood filtering component 12 is filtered.
The embodiment two provides a pair of blood filter, through setting up blood filter for being equipped with the casing that link up the passageway and set up the mode of straining the blood subassembly in the casing, the casing specifically includes the connecting portion that communicate in proper order, store up blood portion, filter house and plasma output portion, be equipped with in the filter house and strain the blood subassembly, blood filter still includes a kind pipe, after the kind pipe absorbs blood, through connecting portion and butt joint of inhaling kind pipe, the pipettor will inhale in the blood subassembly of filter house is released to the blood in the kind pipe, thereby can realize filtering through blood filter fast after the collection of a small amount of blood, and is simple, convenient and fast, therefore, the clothes hanger is strong in practicability.
EXAMPLE III
Referring to fig. 7, a blood filtering apparatus 30 according to a third embodiment of the present invention includes a box 31, a blood filter storage 32 disposed in the box 31, and the blood filter 10, wherein the blood filter 10 is disposed on the blood filter storage 32.
Preferably, the blood filter storage 32 may be provided with a placement groove 321 to facilitate placement of the blood filter 10 on the blood filter storage 32.
Specifically, the pipette 14 and the blood filter 10 of the first embodiment may be placed in different placement grooves 321, respectively, for use. Thus, two different shapes of the placement grooves 321 can be designed, one of the placement grooves 321 to be placed in cooperation with the pipette 14 and the other of the placement grooves 321 to be placed in cooperation with the hemofilter 10 in the first embodiment.
The embodiment of the utility model provides a blood filter, through setting up the box body, blood filter storage element in the box body setting places blood filter on blood filter storage element to in place blood filter in the box body, be convenient for deposit and use.
The embodiment of the utility model provides a blood filter and blood filter, through setting up blood filter for being equipped with the casing that link up the passageway and set up the mode of straining the blood subassembly in the casing, the casing friend specifically includes connecting portion, blood storage portion, filter house and plasma output portion, is connected through equipment such as connecting portion and pipettor, perhaps blood filter still includes the appearance of inhaling pipe, connecting portion with inhale the butt joint of appearance pipe to can realize filtering through blood filter fast after the collection of a small amount of blood, simple convenient and fast, the practicality is strong. Meanwhile, the blood filter is placed on the blood filter storage part of the box body, so that the blood filter can be stored and used conveniently.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A blood filter, comprising:
the blood filter comprises a shell with a through channel, wherein the shell comprises a connecting part, a blood storage part, a filtering part and a plasma output part which are sequentially communicated; and
the blood filtering component is arranged in the filtering part;
when the blood filter is used, the inner diameter of the connecting part is matched with the outer diameter of a suction nozzle of a pipettor.
2. The blood filter of claim 1, further comprising:
and a fixing body for fixing the blood filtration component in the filter part.
3. The blood filter of claim 2 wherein said retaining body is an annular retaining sleeve.
4. The blood filter of claim 1, further comprising:
a sample suction pipe;
the sample suction pipe comprises a sleeving part, a storage part and a blood sampling part which are sequentially communicated;
the inner diameter of the sleeving part is matched with the outer diameter of a suction nozzle of the liquid transfer device;
the outer diameter of the storage part is matched with the inner diameter of the connecting part.
5. The blood filter of claim 1, wherein the end of the filter portion connected to the plasma output portion is tapered toward the longitudinal axis of the housing to form an opening at the end of the plasma output portion, and the aperture of the plasma output portion decreases toward a direction away from the filter portion.
6. The blood filter according to claim 4, wherein the diameter of the blood sampling portion gradually decreases in a direction away from the storage portion to form a sample suction port of the sample suction tube.
7. A blood filtration apparatus, comprising:
a box body; and
a blood filter storage member disposed in the case;
the blood filter storage member has a plurality of blood filters according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467918.5U CN211214662U (en) | 2019-04-09 | 2019-04-09 | Blood filter and blood filtering apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467918.5U CN211214662U (en) | 2019-04-09 | 2019-04-09 | Blood filter and blood filtering apparatus |
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| Publication Number | Publication Date |
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| CN211214662U true CN211214662U (en) | 2020-08-11 |
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| CN201920467918.5U Active CN211214662U (en) | 2019-04-09 | 2019-04-09 | Blood filter and blood filtering apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111789601A (en) * | 2019-04-09 | 2020-10-20 | 李泉 | Blood filter and blood filtering apparatus |
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2019
- 2019-04-09 CN CN201920467918.5U patent/CN211214662U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111789601A (en) * | 2019-04-09 | 2020-10-20 | 李泉 | Blood filter and blood filtering apparatus |
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