CN101450336B - Fluid separation device and fluid separation method thereof - Google Patents

Abstract

The invention discloses a fluid separation device and a fluid separation method using the same. The fluid separation device comprises a body, a storage tank, a liquid inlet channel and a separation unit. A reservoir is formed centrally in the body. The liquid inlet channel is formed on the body and communicated with the storage tank. The separation unit is formed on the body and communicated with the liquid inlet channel. The separation unit includes a stacking region, a collection region, and a blocking wall. A collection area is located between the stacking area and the storage tank. A blocking wall is formed between the collection region and the stacking region.

Description

Fluid separation device and separation of fluids thereof

Technical field

The present invention relates to a kind of fluid separation device, particularly a kind of fluid separation device that is used for separating blood.The invention still further relates to the separation of fluids that uses this fluid separation device.

Background technology

Its structure of known fluid separation device is comparatively complicated usually, and for example the fluid separation device that disclosed of U.S. Pat 6548788 has the design of little valve, in order to flowing of control fluid on its card casket.But because little valve must be made with micro-processing technology, therefore known fluid separation device also can't be made through the mode of plastic rubber ejaculate molding, thereby cost is higher.

Same, U.S. Pat 5061381 and US 5089417 have also disclosed other forms of fluid separation device, and its structure is too complicated, so manufacturing cost is higher.

Summary of the invention

A kind of fluid separation device that the present invention promptly provides for desire solves the problem of known technology comprises body, storagetank, feed liquor raceway groove and separative element.Storagetank is formed at this body center.The feed liquor channel shape is formed on this body, and is communicated with this storagetank.Separative element is formed on this body, and is communicated with this feed liquor raceway groove.Separative element comprises heaps district, collecting region and barrier.Collecting region is heaped between district and this storagetank at this.Barrier is formed between this collecting region and this heap district.

Use fluid separation device of the present invention, can better simply structure and lower cost, accomplish the work that fluid separates fast.

Description of drawings

Fig. 1 a is the fluid separation device that shows first embodiment of the invention;

Fig. 1 b is the A part enlarged drawing that shows among Fig. 1 a;

Fig. 2 a-2c is the fluid separation process that shows the fluid separation device of first embodiment;

Fig. 2 d is the B part enlarged drawing that shows among Fig. 2 c;

Fig. 3 a is the variation that shows first embodiment of the invention;

Fig. 3 b is the C part enlarged drawing that shows among Fig. 3 a;

Fig. 4 a, 4b are the fluid separation devices that shows second embodiment of the invention; And

Fig. 5 a-5c is the fluid separation process that shows the fluid separation device of second embodiment.

Description of reference numerals

10～fluid, 11～first fluid composition

12～the second fluid compositions 100,200～fluid separation device

110～body, 111～first surface

120～storagetank, 121～spiral groove

130～separative element, 131～collecting region

132～heap and distinguish 133～barrier

134～guide groove, 140～feed liquor raceway groove

150～deaeration channel, 210～the first bodies

211～spiral groove 212～the first connects groove

220～the second bodies, 221～the first separation chambers

222～the second connect groove 223～the second separation chambers

224～capillary, 231～the first exhaust trench

232～the second exhaust trench 233～the 3rd exhaust trench

240～surplus liquid chamber

The specific embodiment

With reference to Fig. 1 a, it is the fluid separation device 100 that shows first embodiment of the invention, comprises body 110, storagetank 120, separative element 130, feed liquor raceway groove 140 and deaeration channel 150.This body 110 is rounded.This storagetank 120 is rounded, is formed at this body 110 central authorities.Separative element 130 is formed at the edge of this body 110, with equally spaced mode around this storagetank 120.Feed liquor raceway groove 140 is formed on this body 110, and is communicated with this storagetank 120 and this separative element 130.This deaeration channel 150 is formed on this body 110, and is communicated with this storagetank 120 and this separative element 130.

With reference to Fig. 1 b, it is the A part enlarged drawing that shows among Fig. 1 a.This body 110 comprises first surface 111.This separative element 130 comprises collecting region 131, heaps district 132 and barrier 133.Collecting region 131 is heaped between district 132 and this storagetank 120 at this.Barrier 133 is formed between this collecting region 131 and this heap district 132.The volume of this collecting region 131 is heaped the volume in district 132 less than this.This volumetric ratio of heaping district 132 and this collecting region 131 is between 1: 1 to 2: 1.The depth d of this barrier 133 and the depth ratio of this collecting region are approximately between 1/3～1/6.This heap district 132 in the width W 2 of circumferencial direction greater than the width W 1 of this collecting region 131 in circumferencial direction.This feed liquor raceway groove 140 is positioned at this barrier 133 tops with the link position of this separative element 130.150 of deaeration channel are communicated with this collecting region 131 and this storagetank 120.

With reference to Fig. 2 a-2c is the fluid separation process that shows fluid separation device 100.At first, shown fluid (blood) 10 centre among this storagetank 120 of being instiled like Fig. 2 a.Then, with reference to Fig. 2 b and 2c figure, this fluid separation device 100 is a pivot with storagetank 120, along the inverse clock rotation, so that this fluid (blood) 10 is pushed among this separative element 130 through centrifugal force.With reference to Fig. 2 d; It is the B part enlarged drawing that shows among Fig. 2 c, wherein, and after this fluid (blood) 10 separated completion; The first fluid composition (blood cell) 11 of this fluid 10 is collected in this heap district 132, and second fluid composition (blood plasma) 12 of this fluid 10 is collected in this collecting region 131.

With reference to Fig. 3 a, it is the variation 100 ' that shows first embodiment of the invention, and wherein, this storagetank 120 also comprises spiral groove 121, is formed at the bottom of this storagetank 120, carries out quantitatively in order to convection cell 10.Simultaneously, with reference to Fig. 3 b, it is the C part enlarged drawing that shows among Fig. 3 a, and the top of this barrier 133 more is provided with a plurality of guide grooves 134, and these guide grooves 134 see through these first fluid composition (blood cell) 11 entering of capillarity guiding should heap district 132.

With reference to Fig. 4 a, 4b, it is the fluid separation device 200 that shows second embodiment of the invention, comprises first body 210 and second body 220.First body 210 comprises that spiral groove 211 and first connects groove 212.This first connection groove 212 is communicated with the bottom of these spiral grooves 211, and runs through this first body 210.Second body 220 comprises that first separation chamber 221, second connects groove 222, second separation chamber 223 and capillary 224.First separation chamber 221 is communicated with this first connection groove 222.Second connects groove 222 is communicated with this first separation chamber 221, and wherein, these second connection ditch, 222 grooves ringwise.Capillary 224 is communicated with these second separation chambers 223 and this second connection groove 222.

First body 210 also comprises first exhaust trench 231, second exhaust trench 232 and the 3rd exhaust trench 233.First exhaust trench 231 connects the upper strata of this spiral groove 211, and is communicated with this first separation chamber 221.This second exhaust trench 232 and is communicated with these second separation chambers 223 ringwise.

Second body 220 also comprises surplus liquid chamber 240, and this surplus liquid chamber 240 is communicated with this second connection groove 222, and is communicated with the 3rd exhaust trench 233.

With reference to Fig. 5 a-5c, it is the fluid separation process that shows fluid separation device 200.At first, this fluid (blood) 10 is injected among this spiral groove 211.Then, with reference to 5b figure, this fluid separation device 200 rotates with first rotating speed towards first direction (clockwise); At this moment; This fluid 10 flows in this first separation chamber 221, and in this first separation chamber 221, this first fluid composition (blood cell) 11 separates with this second fluid composition (blood plasma) 12.At last, with reference to 5c figure, this fluid separation device 200 rotates with second rotating speed towards second direction (counterclockwise); At this moment; This second fluid composition (blood plasma) 12 flows into this second connection groove 222 from this first separation chamber 221, and through capillary 224, flows into second separation chamber 223; Unnecessary second fluid composition (blood plasma) 12 can get into surplus liquid chamber 240, and this first fluid composition (blood cell) 11 is then stayed in this first separation chamber 221.

This first rotating speed is greater than this second rotating speed.When this fluid 10 flowed into this first separation chamber 221, this second separation chamber 222 and this surplus liquid chamber 240, the air in this first separation chamber 221, this second separation chamber 222 and this surplus liquid chamber 240 was discharged by this first exhaust trench 231, this second exhaust trench 232 and the 3rd exhaust trench 233.

Use fluid separation device of the present invention, can better simply structure and lower cost, accomplish the work that fluid separates fast.

Though the present invention discloses as above with concrete preferred embodiment; Right its is not in order to limit the present invention; Those skilled in the art are not breaking away from the spirit and scope of the present invention; Still can do a little change and retouching, so protection scope of the present invention is when looking being as the criterion that accompanying Claim defines.

Claims (11)

1. A fluid separation device, comprising: Ontology; a storage tank formed on the body; A liquid inlet channel is formed on the body and communicates with the storage tank; The separation unit is formed on the body and communicates with the liquid inlet channel, including: accumulation area; a collection area located between the accumulation area and the storage tank; and A barrier wall is formed between the collection area and the accumulation area, wherein the connection position between the liquid inlet channel and the accumulation area of the separation unit is located above the barrier wall. When the fluid separation device separates the fluid, according to the specific gravity differently, the first fluid component of the fluid is collected in the accumulation area and the second fluid component of the fluid is collected in the collection area; and The exhaust channel communicates with the collection area and the storage tank. 2. The fluid separation device of claim 1, wherein the volume of the collection area is smaller than the volume of the accumulation area. 3. The fluid separation device as claimed in claim 1, wherein the volume ratio of the accumulation area to the collection area is between 1:1 and 2:1. 4. The fluid separation device as claimed in claim 1, wherein the ratio of the depth of the barrier wall to the depth of the collection area is 1/3˜1/6. 5. The fluid separation device as claimed in claim 1, wherein the storage tank comprises a spiral groove formed at the bottom of the storage tank. 6. The fluid separation device according to claim 1, wherein the barrier wall further comprises a plurality of guide grooves formed on the top end of the barrier wall. 7. The fluid separation device of claim 1, wherein the fluid is blood, the first fluid component is blood cells, and the second fluid component is plasma. 8. A fluid separation method for separating a first fluid component and a second fluid component in a fluid, comprising: There is provided a fluid separation device as claimed in claim 1; and Rotate with the storage tank as the rotation center to separate the first fluid component and the second fluid component. 9. A fluid separation device comprising: Ontology; a storage tank formed on the body; A plurality of liquid inlet channels are formed on the body and communicate with the storage tank; and A plurality of separation units are formed on the body, communicate with the plurality of liquid inlet channels, and are arranged around the storage tank in sequence, each separation unit communicates with a liquid inlet channel, including: accumulation area; a collection area located between the accumulation area and the storage tank; and A barrier wall is formed between the collection area and the accumulation area, wherein the connection position between the liquid inlet channel and the accumulation area of the separation unit is located above the barrier wall. When the fluid separation device separates the fluid, according to the specific gravity Different, the first fluid component of the fluid is collected in the accumulation area, the second fluid component of the fluid is collected in the collection area; and a plurality of exhaust channels communicate with the collection area and the collection area of each separation unit respectively. storage tank. 10. The fluid separation device as claimed in claim 9, wherein the plurality of separation units are arranged at equal intervals. 11. A fluid separation method for separating a first fluid component and a second fluid component in a fluid, comprising: There is provided a fluid separation device as claimed in claim 9; and Rotate with the storage tank as the rotation center to separate the first fluid component and the second fluid component.

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