WO2003012403A1 - Dispositif pour l'analyse d'un echantillon notamment par cytometrie de flux - Google Patents
Dispositif pour l'analyse d'un echantillon notamment par cytometrie de flux Download PDFInfo
- Publication number
- WO2003012403A1 WO2003012403A1 PCT/FR2002/002791 FR0202791W WO03012403A1 WO 2003012403 A1 WO2003012403 A1 WO 2003012403A1 FR 0202791 W FR0202791 W FR 0202791W WO 03012403 A1 WO03012403 A1 WO 03012403A1
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- WO
- WIPO (PCT)
- Prior art keywords
- mirror
- receptacle
- card
- face
- source
- Prior art date
Links
- 238000000684 flow cytometry Methods 0.000 title claims description 10
- 238000004458 analytical method Methods 0.000 claims description 23
- 230000005855 radiation Effects 0.000 claims description 18
- 230000003287 optical effect Effects 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 16
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- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 230000004308 accommodation Effects 0.000 claims 1
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- 210000000056 organ Anatomy 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 230000004907 flux Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 210000003462 vein Anatomy 0.000 description 5
- 239000003570 air Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000004163 cytometry Methods 0.000 description 3
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- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- DPKHZNPWBDQZCN-UHFFFAOYSA-N acridine orange free base Chemical compound C1=CC(N(C)C)=CC2=NC3=CC(N(C)C)=CC=C3C=C21 DPKHZNPWBDQZCN-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- DZBUGLKDJFMEHC-UHFFFAOYSA-N benzoquinolinylidene Natural products C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 1
- -1 cells Chemical class 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/14—Optical investigation techniques, e.g. flow cytometry
- G01N15/1434—Optical arrangements
- G01N15/1436—Optical arrangements the optical arrangement forming an integrated apparatus with the sample container, e.g. a flow cell
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/14—Optical investigation techniques, e.g. flow cytometry
- G01N15/1484—Optical investigation techniques, e.g. flow cytometry microstructural devices
Definitions
- the invention relates to devices for analyzing a sample, in particular by flow cytometry.
- Flow cytometry is currently commonly used in various fields (medicine, food, biotechnology, environment) for the analysis of different compounds such as cells, macromolecules, etc.
- Flow cytometry can for example be implemented as follows.
- the cells (particles) to be analyzed are centered by a liquid vein system in the axis of a liquid jet. They pass individually, at the rate of a few thousand per second, through a laser beam focused on the axis of the jet and thus induce a certain number of light signals.
- Appropriate optical systems recover the laser light scattered at a solid angle between 0.5 ° and 15 ° (axial scatter) and the light emitted perpendicular to the jet and to the laser beam (perpendicular scatter, fluorescence).
- a set of mirrors and optical filters makes it possible to decompose the collected signals according to their wavelength (for example green and red fluorescences of acridine orange).
- the optical signals transformed into electrical signals by photodetectors are processed in specialized electronic circuits which assign the intensities of the signals transmitted to each cell.
- Mono- or multidimensional frequency distributions give the distribution of the population of cells analyzed.
- a device of this type is for example described in the document FR-2 325 038.
- a device of this type is for example described in the document FR-2 325 038.
- Such a device can be removably received in an apparatus which comprises the light source, the optical members and the means of analysis of the light rays emitted by the sample, as well as the fluid system capable of lead the sample.
- the system connects to the card to drive the sample through an analysis window of the latter.
- removable cards have the disadvantage that the amount of light collected for the analysis is much less than that collected in a conventional device. Indeed, in the latter, the optical organs such as the lenses are generally arranged very close to the analysis vein in order to collect the greatest possible amount of light, that is to say at the largest solid angle possible around the point of the vein crossed by the incident ray. In a removable card, on the other hand, the removable nature means that there must be a minimum spacing between the vein and the lens, which results in a reduction in the solid collection angle and therefore in less collection.
- document EP-1 058 939 proposes integrating an optical member such as a collection lens into the wall of the card. As this lens can be placed very close to the vein, the amount of light collected is increased. This document also suggests incorporating a reflective element on the card. Such an element can help increase the collection of light.
- An object of the invention is to further increase the amount of light that can be collected in the context of an analysis device.
- a device for analyzing a sample by means of a light ray comprising a sample receptacle and a mirror, the mirror having a discontinuity so that a light ray can cross the mirror to reach the receptacle.
- the device according to the invention may also have at least one of the following characteristics: - the mirror is fixed to the receptacle,
- the device comprises an external wall defining the mirror
- the mirror is attached to an external wall of the device
- the device has an essentially flat shape
- the receptacle extends parallel to a main face of the device, the mirror extending in line with the receptacle along a thickness e of the device,
- the discontinuity is to the right of the receptacle along a thickness e of the device
- the discontinuity is arranged so that the light ray is inclined relative to a thickness e of the device
- the device is arranged so that a fluid flows in the receptacle in a predetermined direction, the discontinuity being in an upstream half of the mirror with reference to the direction of flow,
- the device comprises a substrate having a face forming the mirror, this face being in contact with a medium different from that of the substrate and extending between the substrate and the receptacle,
- the device comprises a substrate having a face forming the mirror and extending in contact with a medium different from that of the substrate, the substrate extending between the face and the receptacle,
- the medium is a gas
- the mirror has the shape of a portion of a sphere
- the device is arranged so that the ray emerges from the device on one side of the receptacle opposite the mirror, the device also has an optical member fixed to the receptacle,
- the device comprises an external wall defining the optical member
- the receptacle has an elongated shape
- the device comprises a fluid reservoir, the sample comprises a fluid, and
- an assembly for the analysis of a sample comprising a device and an apparatus having a housing for removable reception of the device and a light source, the source being capable of emitting a light ray passing through the mirror for reach the receptacle when the device is in the housing.
- This arrangement can make it possible to verify the correct positioning of the card in its housing by measuring the intensity of the incident ray transmitted through the card, which must be maximum, and the intensity of the ray reflected by the periphery of the orifice in the direction from the source, which must be minimal.
- the apparatus comprises means for analyzing the radius arranged so that the device extends between the source and the means of analysis when the device is in the housing.
- the assembly includes means for analyzing radiation coming directly or indirectly from the source so as to determine whether the device is received at a predetermined position in the housing.
- FIG. 1 is a perspective view in principle of a device according to the invention.
- FIG. 2 is a schematic view of an assembly according to the invention adapted to receive the device of Figure 1;
- - Figure 3 is a cross-sectional view showing the edge of the device of Figure 1 and illustrating the first preferred embodiment;
- FIG. 4 is a view similar to Figure 3 in which the identical elements have not been shown and illustrating the second preferred embodiment
- FIG. 5 is a view similar to Figure 3 illustrating the third preferred embodiment
- FIG. 7 is a view of the member 52 of FIG. 3.
- FIG. 1 A device according to the invention is illustrated in FIG. 1 in the form of a card 2.
- This card has a generally rectangular plan shape and has a length and a width similar to that of a credit card, each of the order of a few centimeters. It has a thickness e of the order of a few millimeters, for example 3 mm.
- This card is preferably transparent. It has in its thickness different conduits 4 as well as one or more compartments 6, one or more reservoirs 6, and / or one or more orifices 6 arranged in mutual fluid communication by means of conduits 4.
- the card can thus include one or more several liquids stored or circulating inside the card.
- the hole (s) of the card make it possible to act on the inside of the latter to introduce a liquid into the card, to extract a liquid from the card, or to circulate a liquid in the card.
- the card includes a conduit 8 in the form of a capillary in communication with the other conduits 4.
- the card comprises with reference to FIG. 3 an internal wall 10 and two front 12 and rear 14 intermediate walls extending on either side of the internal wall 10. The latter is therefore sandwiched between the intermediate walls.
- the card also comprises front 16 and rear 18 external walls extending on either side of the group of three walls 10, 12 and 14.
- the five walls 10 to 18 have shapes which are substantially identical to each other and generally correspond to the shape of the card.
- the intermediate walls 12 and 14 have identical cutouts and opposite one another forming a window 20 in the thickness of the card.
- the walls 10, 12 and 14 are formed by the stacking of several sheets each having internal cutouts adapted so that the stacking of the different sheets defines inside the card elements 4, 6, 8 and 20 above.
- a card is known in principle.
- the card 2 is intended to be received in a removable manner in an apparatus 22 such as that illustrated diagrammatically in FIG. 2.
- the apparatus has a housing 24 formed by suitable elements 26.
- this apparatus comprises at least one light source 28 such as a laser radiation source, and means of analysis and treatment 30, 52 of the radiation emanating from the card.
- These means conventionally include different optical organs such as lenses, filters, mirrors, etc. as well as organs capable of converting this radiation into electronic form for processing.
- the apparatus also comprises means 32 necessary for ensuring the circulation of one or more fluids inside the card. These means may in particular include one or more pumps. Once the card has been received in its slot, these means are able to enter into fluid communication with the interior of the card by means of the orifice or orifices which it presents.
- the front wall 16 of the card 2 comprises an outer face 34 of planar shape intended to extend opposite the source 28 when the card is received in the housing 24.
- the internal face 36 constituting the second main face of this wall also has a planar shape over most of its surface but has a hollow spherical portion 38 providing a cavity 39.
- This spherical portion 38 extends opposite the capillary 8 and opposite the window 20.
- This portion is covered by a suitable coating such as a metal coating so as to form a mirror.
- This mirror therefore constitutes the diopter forming the junction between the material of the front wall 16 and the air filling the cavity 39.
- the mirror is formed so that the point C of the capillary extending in the center of the window 20 occupies the center of the sphere.
- an orifice 40 is formed in the front wall
- the source 28 is positioned so that, when the card 2 is received in the housing 24, a ray 42 emitted by the source crosses the wall 16 at the orifice 40 to intercept the capillary 8 at the center C of the window 20, that is to say at the focus of the mirror 38.
- the rear wall 18 has an internal face 44 having a protuberance 46 able to fill in the cutout of the rear intermediate wall 14 corresponding to the window 20.
- the rear wall 18 also has a rear external face 46. Most of this face is formed by a flat area. It further comprises a curved spherical zone 48 extending projecting from the planar zone. This zone 48 forms a lens extending opposite the window and the focus of which is at the point of the capillary 8 capable of receiving the incident ray 42.
- the capillary 8 is therefore interposed between the mirror 38 on the one hand and the lens 48 on the other hand.
- the lens 48 is a converging lens. In the embodiment of FIG. 3, the incident ray 42 is essentially perpendicular to the plane of the card.
- the apparatus also comprises means such as a mirror 50 disposed in the vicinity of the processing means 30, in the path of the incident ray 42 emitted by the source 28, and capable of deviating towards a suitable device not shown the fraction of the incident ray having passed through the capillary without having been substantially deflected by it. Indeed, this fraction which we will call transmitted fraction includes practically no exploitable information and must therefore be removed without hindering the analysis of the other fractions.
- the incident ray 42 of the source 28 passes through the orifice 40 and strikes the capillary 8 containing the sample being analyzed at the point which corresponds to the center of the mirror 38 and at the focal point of the lens 48.
- the fraction transmitted from this ray crosses the card and is evacuated by the mirror 50.
- This ray is difracted during interactions with the particles of the sample during its passage through the capillary. This diffraction takes place at a solid angle of a few steradians on either side of the transmitted beam. This part contains bright information about the size of the particles in the sample and can therefore be usefully analyzed.
- This fraction crosses the rear wall 18.
- the rays which constitute it are initially divergent. Their orientation is modified by the passage of the lens 48 which transforms for example this fraction into a parallel radiation or of reduced divergence. In FIG. 3, the function of the lens 48 has also been illustrated by the arrow 48 in accordance with the conventional symbolization.
- the entire beam initially diffracted at a small solid angle (typically between 0.5 and 15 steradians) is therefore collected to be sent to the processing means 52 via the mirror 50.
- FIG. 7 illustrates a view of the face 53 of the member 52 receiving the radiation.
- This face has a generally circular shape. It presents at mid-height a bar 55 for laser obscuration extending over the entire width of the face.
- This bar comprises detectors 57 of direct laser light intensity, here three in number, spaced from one another.
- a fraction of the incident ray 42 is also diffused at a large solid angle around the point of incidence of the ray on the capillary, and even most often throughout the space, that is to say over a solid angle of 4U steradians. A part of this fraction diffused towards the lens emerges from the card through the lens 48 so that it is also collected and sent to the processing means 30.
- This diffused fraction is oriented towards the mirror 38 which it reflects it at the center of the capillary, which causes it to be collected by the lens 48 and then by the processing means 30. A very large part of the scattered beam is therefore sent directly or indirectly to the processing means 30.
- the components forming the scattered beam can be separated from each other and measured for example at the wavelength of the laser and at the length or lengths of the fluorescence characteristic of the fluorescence markers used in the context of the analysis and resulting from the passage of the ray in the capillary.
- the assembly comprising the apparatus 22 and the card 2 may include optical members 54 disposed between the source 28 and the orifice 40, for example converging lenses capable of focusing the incident ray on the capillary. These organs may either be permanently fixed to the apparatus or else permanently fixed to the card 2 while being integrated therein.
- the separation of the different components of the diffracted and scattered beams can be done by means of conventional organs integrated into the apparatus such as separating mirrors, filters, networks or prisms.
- the quantification of each component can be carried out using photodetectors of appropriate sensitivity.
- the mirror 38 collects the back scattered light and returns it as a superposition of the scattered light directly towards the lens, towards the front, which makes it possible to double the intensity of the flux.
- the orifice 40 makes it possible to give a large surface to the mirror without the incident ray constituting an obstacle.
- the presence of port 40 in the mirror 38 also makes it possible to verify that the positioning of the card 2 in its housing 24 is correct. Indeed, one can provide for example between the mirror 50 and the analysis means 52 as illustrated (or even within the means 52 themselves) means 58 for measuring the intensity of the light flux reflected by the mirror 50 and received by this body.
- Means can also be provided at the source 28 for measuring the intensity of a light flux formed by the fraction of the incident ray 42 possibly reflected by the periphery of the orifice 40.
- the light flux received by the member 58 must be maximum while the light flux reflected by the periphery of the orifice on the source 28 will be minimal.
- the orifice 40 is not precisely opposite the source 28. Under these conditions, the light intensity received by the member 58 is not maximum while the the intensity reflected by the periphery of the orifice towards the source is not minimal.
- the control of the positioning of the card in the switchgear can naturally be automated to be used for a self-optimization system.
- the laser beam has at the point of illumination c in section a flattened ellipse shape having a major axis (inscribed in the plane of FIG. 3) of between 60 and 100 micrometers, or even between 20 and 100 ⁇ m, and a small axis (perpendicular to the plane of the figure) between 10 and 20 micrometers, or even between 3 and 20 ⁇ m.
- the cells or particles subject to analysis by cytometry may have dimensions between 0.1 and 20 micrometers.
- the largest transverse dimension of the capillary 8 crossed by the ray, possibly its diameter if it has a circular cross section, may be of the order of 100 micrometers. It can more generally be between 50 micrometers and 1 millimeter. As illustrated in FIG.
- this conduit 8 here has a rectangular section in a plane perpendicular to its longitudinal axis. This section here has a width between 20 and 200 ⁇ m and a length between 50 ⁇ m and 1 mm.
- the sheets forming the inside of the card, in particular forming the wall 10, may be made of the material known by the name mylar.
- the intermediate walls and the external walls can be formed from glass or plastic such as PMMA or polycarbonate.
- the source 28 may be of low power (for example between 10 milliwatts and 100 milliwatts, or even between 1 mW and 25 mW), which makes it possible to reduce the cost thereof. Low power also has the advantage of simplifying the means to be used to deflect and absorb the transmitted ray (organs 50 and 58) as well as to eliminate any parasitic rays.
- the cavity 39 it may be envisaged to fill the cavity 39 with a material having a refractive index different from the air index.
- This material could for example be a gel known in itself for its advantageous index.
- Such a material makes it possible to favor the orientation of the rays during their reflections in the cavity.
- FIG. 4 A second preferred embodiment of the invention has been illustrated in FIG. 4.
- the apparatus is identical to that of the first mode. Only the card 102 is modified.
- the rear wall 18 has the same shape as in the mode of FIG. 3.
- the front wall 116 has a shape generally symmetrical with that of the rear wall 18 with respect to the median plane extending in the thickness of the card.
- the internal face 136 this time has a protuberance coming to occupy the window 20.
- the external face 134 has a spherical portion 138 projecting from the planar zone of this face.
- the portion 138 is covered with a coating such as a metallization capable of giving it reflective properties so as to make it a mirror.
- the mirror 138 is therefore formed by the diopter constituting the junction between the wall 116 and the ambient air.
- the wall 116 is interposed between the ambient air and the capillary 8 while in the previous mode the cavity filled with air was interposed between the wall and the capillary.
- This embodiment therefore differs from the previous one in particular in that the coating 138 extends this time outside the card and no longer inside
- the coating 138 has a discontinuity 140 at the point C of the capillary 8 occupying the center of the window 20, depending on the thickness of the card. This discontinuity extends at the same place as the orifice 40 in the embodiment of FIG. 3.
- This embodiment is very close to the mode of FIG. 4 in which the discontinuity on the mirror is formed by an interruption of the coating forming the external mirror.
- the discontinuity 240 of the card 202 does not extend to the right of the window center C along the thickness e but is offset towards an edge of the mirror as this is shown in Figure 5.
- the straight line extending from this discontinuity 240 to the center C of the window occupied by the capillary is inclined at an acute angle relative to the longitudinal direction of the capillary.
- the position of the source 28 is modified accordingly. This time, the axis of the source intersects with the axis 31 of the processing means 30 at the center c of the window.
- the source no longer extends directly opposite the means 30 or coaxially with them.
- the source is arranged so that, when the card is properly positioned in its housing, the ray 42 crosses the discontinuity 240 to reach the center C of the window in the capillary.
- the member 52 intended to receive a fraction of the diffracted ray no longer extends opposite the means 30 coaxially therewith but is in alignment with the source, the discontinuity 240 and the center C of the window.
- a central zone of the lens of very large surface is therefore opposite the means 30 without any obstacle between them so that all the rays passing through this zone can be collected to be processed.
- This arrangement makes it possible for the solid angle 260 corresponding to the fraction of the ray collected by the members 52 and 58 to extend completely outside the solid angle 262 corresponding to the fraction of the radiation (wide angles) collected by the means 30.
- FIG. 5 illustrates a section of the map in a plane perpendicular to the general plane of the map.
- the capillary extends in the plane of the section, unlike the cases of FIGS. 3 and 4.
- the source 28 is arranged so that the radius 42 extends in this plane. It is not strictly necessary for the radius to extend in this plane.
- the separation of the solid angles 260 and 262 can be obtained by placing the source 28 outside the plane of FIG. 5 while providing for the discontinuity 240 in the vicinity of an edge of the mirror 238.
- the arrangement of the source 28 in this plane makes it possible to collect a large and very significant fraction of the scattered and diffracted beam.
- the angle a is equal to 45 °. It will advantageously be between 30 and 50 °.
- the source 28 it is preferable to bring the source 28 closer to an upstream part of the capillary 8 as illustrated in FIG. 5 rather than to a downstream part of the latter with reference to the direction of flow of the fluid in the capillary illustrated by the arrow 72. In fact, in this way the radiation trapped in the capillary is sent to a fraction of downstream fluid which has already been analyzed.
- part of the radiation would be sent to the upstream fractions and would risk reacting in advance with the fluorochromes present in the liquid or other substances intended to interact with the incident radiation and consequently could risk the analysis.
- Particles to be analyzed such as cells or macromolecules have been illustrated in FIG. 6 in the form of beads traveling one after the other in the capillary 8 in accordance with the principle of flow cytometry.
- the incident radiation 42 enters the card through the discontinuity 240 and arrives in the capillary in the center of the window.
- a fraction 66 of the transmitted radiation 68 remains trapped in the capillary while a fraction 70 is treated and eliminated by the organs 52 and 58.
- Diffracted fraction 260 of the radiation is collected by the lens 48 and received by the processing means 52.
- a fraction of the radiation scattered towards the lens is received by the means 30.
- the fraction scattered towards the mirror is reflected by the mirror 238 in the center of the window and collected by the lens 48 in the same way.
- the device 2 may be disposable and for single use. It can be mass produced.
- the capillary can be formed by the superposition of the different sheets located in the center of the card. Alternatively, it may be an individual capillary, for example made of glass or quartz.
- the card may include one or more optical members such as mirrors, lenses, prisms, networks, etc. One or more of these elements may be in one piece with one of the external or internal walls of the card. One or more of these elements may be reported on the permanent card. In a variant of the embodiment of FIG. 5, a mirror may be provided adjacent to a cavity as in the mode of FIG. 3.
- the device according to the invention makes it possible to collect a large amount of the light emerging from the capillary.
- the mirror and the lens being permanently fixed to the card in the above embodiments, their centering relative to the capillary is carried out, once and for all, during assembly.
- the invention may be implemented during analyzes carried out using techniques other than flow cytometry. It can for example be implemented as part of an electrophoresis technique.
- the incident radiation may be of various natures. It could be ordinary light, non-laser light, non-coherent light, non-monochromatic light, fluorescent, ultraviolet light, or a wave of non-luminous or even non-electromagnetic nature (sound wave, gamma radiation, ray x, ...) etc ....
- the invention may be implemented in a device receiving the samples in a fixed and not removable manner.
- the fluid may be static rather than mobile.
- the fluid may be a non-aqueous fluid such as a solvent or an oil.
- the invention can be implemented in certain circumstances without the presence of a fluid.
- the invention can be used with a capillary comprising a solid active principle.
- the orifice 40 is located near an upstream region of the capillary according to an arrangement of the source 28 similar to that of FIG. 5.
- a device such as a card, comprising a receptacle and a mirror (for example of spherical shape) fixed to the device.
- This device may further comprise an optical member such as a lens arranged so that the receptacle extends between the mirror and the lens in accordance with the illustrated embodiments.
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002456041A CA2456041A1 (fr) | 2001-08-02 | 2002-08-02 | Dispositif pour l'analyse d'un echantillon notamment par cytometrie de flux |
EP02791516A EP1421364A1 (fr) | 2001-08-02 | 2002-08-02 | Dispositif pour l'analyse d'un echantillon notamment par cytometrie de flux |
JP2003517547A JP2004537720A (ja) | 2001-08-02 | 2002-08-02 | 特にフローサイトメトリーによるサンプル分析用デバイス |
US10/485,505 US20050014248A1 (en) | 2001-08-02 | 2002-08-02 | Device for analysing a sample in particular by flow cytometry |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0110380A FR2828281B1 (fr) | 2001-08-02 | 2001-08-02 | Dispositif pour l'analyse d'un echantillon notamment par cytometrie de flux |
FR0110380 | 2001-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003012403A1 true WO2003012403A1 (fr) | 2003-02-13 |
Family
ID=8866228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/002791 WO2003012403A1 (fr) | 2001-08-02 | 2002-08-02 | Dispositif pour l'analyse d'un echantillon notamment par cytometrie de flux |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050014248A1 (fr) |
EP (1) | EP1421364A1 (fr) |
JP (1) | JP2004537720A (fr) |
CA (1) | CA2456041A1 (fr) |
FR (1) | FR2828281B1 (fr) |
WO (1) | WO2003012403A1 (fr) |
Cited By (15)
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US7586604B2 (en) | 1997-01-31 | 2009-09-08 | Xy, Inc. | Optical apparatus |
US7629113B2 (en) | 1997-12-31 | 2009-12-08 | Xy, Inc | Multiple sexed embryo production system for bovine mammals |
US7713687B2 (en) | 2000-11-29 | 2010-05-11 | Xy, Inc. | System to separate frozen-thawed spermatozoa into x-chromosome bearing and y-chromosome bearing populations |
US7723116B2 (en) | 2003-05-15 | 2010-05-25 | Xy, Inc. | Apparatus, methods and processes for sorting particles and for providing sex-sorted animal sperm |
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US7820425B2 (en) | 1999-11-24 | 2010-10-26 | Xy, Llc | Method of cryopreserving selected sperm cells |
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US7838210B2 (en) | 2004-03-29 | 2010-11-23 | Inguran, LLC. | Sperm suspensions for sorting into X or Y chromosome-bearing enriched populations |
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US9365822B2 (en) | 1997-12-31 | 2016-06-14 | Xy, Llc | System and method for sorting cells |
US7820425B2 (en) | 1999-11-24 | 2010-10-26 | Xy, Llc | Method of cryopreserving selected sperm cells |
US7771921B2 (en) | 2000-11-29 | 2010-08-10 | Xy, Llc | Separation systems of frozen-thawed spermatozoa into X-chromosome bearing and Y-chromosome bearing populations |
US9879221B2 (en) | 2000-11-29 | 2018-01-30 | Xy, Llc | Method of in-vitro fertilization with spermatozoa separated into X-chromosome and Y-chromosome bearing populations |
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US8652769B2 (en) | 2000-11-29 | 2014-02-18 | Xy, Llc | Methods for separating frozen-thawed spermatozoa into X-chromosome bearing and Y-chromosome bearing populations |
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US8497063B2 (en) | 2002-08-01 | 2013-07-30 | Xy, Llc | Sex selected equine embryo production system |
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US7723116B2 (en) | 2003-05-15 | 2010-05-25 | Xy, Inc. | Apparatus, methods and processes for sorting particles and for providing sex-sorted animal sperm |
US7838210B2 (en) | 2004-03-29 | 2010-11-23 | Inguran, LLC. | Sperm suspensions for sorting into X or Y chromosome-bearing enriched populations |
US7892725B2 (en) | 2004-03-29 | 2011-02-22 | Inguran, Llc | Process for storing a sperm dispersion |
US7833147B2 (en) | 2004-07-22 | 2010-11-16 | Inguran, LLC. | Process for enriching a population of sperm cells |
US9746412B2 (en) | 2012-05-30 | 2017-08-29 | Iris International, Inc. | Flow cytometer |
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Also Published As
Publication number | Publication date |
---|---|
US20050014248A1 (en) | 2005-01-20 |
FR2828281B1 (fr) | 2004-12-31 |
FR2828281A1 (fr) | 2003-02-07 |
CA2456041A1 (fr) | 2003-02-13 |
JP2004537720A (ja) | 2004-12-16 |
EP1421364A1 (fr) | 2004-05-26 |
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