CN107703322B - Reagent sample sucking mechanism and sample analyzer - Google Patents
Reagent sample sucking mechanism and sample analyzer Download PDFInfo
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- CN107703322B CN107703322B CN201710452481.3A CN201710452481A CN107703322B CN 107703322 B CN107703322 B CN 107703322B CN 201710452481 A CN201710452481 A CN 201710452481A CN 107703322 B CN107703322 B CN 107703322B
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- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 246
- 230000007246 mechanism Effects 0.000 title claims abstract description 35
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 230000009467 reduction Effects 0.000 claims abstract description 3
- 230000000994 depressogenic effect Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 15
- 230000009286 beneficial effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000012192 staining solution Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000000338 in vitro Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 208000012266 Needlestick injury Diseases 0.000 description 1
- 238000004159 blood analysis Methods 0.000 description 1
- 210000000601 blood cell Anatomy 0.000 description 1
- 210000001772 blood platelet Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000003743 erythrocyte Anatomy 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000000265 leukocyte Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
- G01N35/1011—Control of the position or alignment of the transfer device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00722—Communications; Identification
- G01N35/00732—Identification of carriers, materials or components in automatic analysers
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Abstract
The invention relates to a reagent sampling mechanism, which comprises a reagent needle and a reagent container, wherein the lower end of the reagent needle is provided with a sample suction port, the bottom of an inner cavity of the reagent container is provided with a slope surface, the slope surface forms a low-lying area capable of converging reagents at the bottom of the reagent container, the sample suction port moves towards the low-lying area along a preset movement track after extending into the reagent container so as to suck and remove the reagents, the included angle between the movement direction of the sample suction port and the inclined direction of the slope surface is reduced along with the reduction of the distance between the sample suction port and the slope surface, the rigid collision between the reagent needle and the bottom of the reagent container can be effectively avoided, the service life of the reagent needle and the reagent container is prolonged, the movement precision of the reagent needle is maintained, the height of the sample suction port is reduced when the sample suction port moves to be close to the bottom area of the reagent container, the reduced height of the sample suction port is controlled to be more accurate, and the residual quantity of the sucked reagents is reduced.
Description
Technical Field
The invention relates to the technical field of in-vitro diagnosis, in particular to a full-automatic sample analyzer.
Background
The full-automatic sample analyzer is a common instrument in the field of in-vitro diagnosis, and is a blood analysis device for counting red blood cells, white blood cells, platelets and the like, the existing sample analyzer sucks and moves a blood sample respectively stored in a test tube and a staining solution stored in a staining solution container to an analysis flow path through a sample suction assembly and a reagent needle assembly, the blood sample and the staining solution are mixed in the analysis flow path, the blood sample is stained to form a measurement sample, and the measurement sample is subjected to illumination detection, so that detection and analysis of blood cells are realized.
Dye solutions are the primary consumable of an analyzer, and are typically contained within a dye solution container, which is therefore often required to be removed or replaced during use. Because of the high cost of the dye solution, in order to use up the dye solution in the dye solution container as much as possible and reduce the residue of the dye solution, the bottom of the conventional dye solution container is usually an inclined slope surface with inclination, the inclined slope surface forms a low-lying area capable of converging the dye solution at the bottom of the dye solution container, and the reagent needle sucks the dye solution in the area, so that the residue and waste of the dye solution in the container are reduced as much as possible.
In contrast, the reagent needle in the conventional analyzer is of an elongated straight tube structure, and is connected with a pull rod, so that an operator drives the reagent needle to synchronously move up and down through the pull rod extending to the front end of the analyzer to suck the reagent from a low-lying area. However, when an operator drives the reagent needle to move downwards by using the pull rod, the hovering position of the reagent needle is difficult to accurately control, and the condition that the reagent needle hovers at a position far away from the bottom surface of the staining solution container or impacts the bottom surface of the staining solution container in the descending process often appears, under the forward impact force, the reagent needle is easy to bend and deform in the impact process, and the precision and the service life of the reagent needle are influenced.
Disclosure of Invention
In view of the above, the present invention aims to provide a reagent sampling mechanism with simple structure and easy use, especially with longer service life, and capable of reducing the reagent residual quantity in a staining solution container.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a reagent sample sucking mechanism, includes reagent needle and reagent container, the lower extreme of reagent needle is the sample sucking mouth, reagent container's inner chamber bottom is the slope face, the slope face forms a low-lying area that can assemble reagent in reagent container's bottom, sample sucking mouth is after stretching into reagent container in along the motion trail orientation that presets the low-lying area removes in order to inhale the reagent, sample sucking mouth's direction of motion with the contained angle between the incline direction of slope face reduces along with the reduction of distance between sample sucking mouth and the slope face.
Preferably, the motion track of the sample suction port is arc-shaped. By adopting the structure, the movement trend of the circular arc-shaped movement track is relatively uniform, the movement direction and the movement trend are easy to estimate and calculate, and the sample suction port is beneficial to being close to the bottom of the reagent container as much as possible.
Preferably, the motion track of the sample suction port is higher than the slope surface or tangential to the slope surface. By adopting the structure, through the design of the movement track, the reagent needle and the sample suction port at the end part of the reagent needle are prevented from collision with the bottom of the reagent container, so that the condition that the reagent needle and the bottom of the reagent container deform due to impact is avoided, the sample suction port is as close to and hovers at the bottom of the reagent container as possible in a tangential mode, and reagent residues in the reagent container are reduced on the basis of avoiding collision.
Preferably, the movement direction of the sample suction opening when the sample suction opening is attached to or near the slope surface is parallel to the inclination direction of the slope surface. By adopting the structure, the reagent needle is hovered above the slope surface at a certain interval by the design of the movement track, and the mode is more beneficial to avoiding the mutual interference or collision between the reagent needle and the bottom of the reagent container, so that the reagent needle can be better protected.
Preferably, the extending direction of the reagent needle is the same as the movement track of the sample suction port.
Preferably, the top of the reagent container is provided with a bottle mouth into which the reagent needle extends, and the moving direction of the sample sucking port at the bottle mouth position is consistent with the axial direction of the bottle mouth. Thereby facilitating the smooth insertion of the reagent needle into the bottle mouth.
Preferably, the reagent needle is connected with guiding mechanism, guiding mechanism includes slider and spout, the upper end and the slider of reagent needle are connected, the slider is connected and is spacing on the spout.
Preferably, the guide mechanism is provided with a position holding structure capable of applying a force to the slider when the sample suction port moves to the upper pole position or the lower pole position, so that the sample suction port is held in the upper pole position or the lower pole position.
Preferably, the position maintaining mechanism comprises a first magnetic component, a second magnetic component and a connecting plate arranged on the sliding block, and when the sample suction port moves to the upper pole position, the connecting plate is magnetically connected with the first magnetic component; when the sample suction port moves to the lower pole position, the connecting plate is magnetically connected with the second magnetic component.
Preferably, the sliding block is connected with a pushing handle, the pushing handle extends outwards from the inside of the sliding groove, and the pushing handle and the sliding block synchronously move.
Preferably, the reagent container further comprises a containing cavity, the containing cavity is provided with an outward opening structure, the sliding block is connected with a shielding plate, the shielding plate and the sliding block move synchronously, when the sample suction opening moves to the upper pole position, the shielding plate moves upwards to the upper side of the opening structure, and when the sample suction opening moves to the lower pole position, the shielding plate descends to the opening structure and shields the sample suction opening. By adopting the structure, the reagent container taking and placing operation is not affected when the reagent container is replaced, and the reagent container can be automatically shielded from light after being installed in place, so that the reagent is prevented from deteriorating when encountering light.
Preferably, the ramp surface of the reagent container includes a first ramp section and a second ramp section, the first ramp section and the second ramp section being inclined to each other, a lowermost end of the first ramp section and a lowermost end of the second ramp section being interconnected to form the depressed region. Different from the structure that the inner bottom surface of the reagent container in the prior art is a slope surface, the two slope surface sections which are mutually inclined and are connected with the lowest end form a V-shaped slope surface, and under the conditions that the slope of the slope surface is the same and the concentration effect of the reagent liquid is unchanged, the height and the space occupied by the slope surface are reduced
Preferably, the shape of the bottom end face of the reagent container is matched with the shape of the slope surface, the bottom end face of the reagent container is provided with a positioning protruding part protruding downwards below the low-lying area, and the inner bottom of the accommodating cavity is provided with a positioning groove for accommodating the positioning protruding part. By adopting the structure, when the first inclined surface section and the second inclined surface section are arranged, the bottom end surface of the reagent container correspondingly forms a downward bulge under the condition of the same wall thickness, the positioning problem of the reagent container in the length direction after being installed in place is solved by the bulge, the structure simultaneously has the effects of facilitating the internal confluence of the reagent container and the positioning of the reagent container, the positioning groove with the matching relationship is arranged in the space for placing the reagent container, the structure for locking and positioning is formed by the positioning bulge of the reagent container, the positioning effect after the reagent container is placed in the accommodating cavity is realized, the reagent container is ensured to be accurately positioned on the movement track of the reagent needle after being placed in the analyzer, and the risk that the reagent needle sticks to the outer side of the reagent container bottle mouth after the reagent container is positioned inaccurately and the bottle mouth is deviated is reduced.
Preferably, a pressing plate is arranged at the top of the accommodating cavity, the pressing plate is arranged above the reagent container, and when the positioning groove and the positioning protruding part are matched with each other, the pressing plate can apply force to prop the positioning protruding part into the positioning groove. By adopting the structure, the possibility of sliding out of the reagent container after the reagent container is installed in place can be reduced, and the stability of the reagent container in the sampling process is improved.
In the invention, different from the existing moving mode of the reagent needle along the vertical lifting, the moving direction of the sample suction port gradually approaches to the slope surface in the moving process of the sample suction port towards the bottom of the reagent container by changing the moving track of the sample suction port at the end part of the reagent needle, so that the rigid collision between the reagent needle and the bottom of the reagent container can be effectively avoided, the service lives of the reagent needle and the reagent container are prolonged, and the moving precision of the reagent needle is maintained; and the height of the sample sucking port is reduced when the sample sucking port moves to a region close to the bottom of the reagent container, so that the descending distance can be controlled more accurately, the sample sucking port is beneficial to being as close to and hovered at the bottom of the reagent container as possible, and the residual quantity of the sucked reagent is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the structure shown in FIG. 1 without the kit;
FIG. 3 is a schematic view of the inner structure of the chute in the structure shown in FIG. 1;
FIG. 4 is a schematic perspective view of a reagent vessel according to the present invention;
FIG. 5 is a schematic view showing the internal structure of the reagent vessel shown in FIG. 4;
fig. 6 is a schematic structural view of an embodiment of the present invention.
The reference numerals are as follows: reagent needle-1; reagent container-2; a sample suction port-3; slope surface-4; a bottle mouth-5; a slide block-6; a chute 7; a connecting plate-8; a first magnetic member-9; a second magnetic part-10; pushing hands-11; a housing chamber 12; a shielding plate-13; a bottom plate-14; positioning the protruding part-15; positioning grooves-16; and a pressing plate-17.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3, the reagent sample absorbing mechanism of the embodiment includes a reagent needle 1 and a reagent container 2, the lower end of the reagent needle 1 is a sample absorbing port 3, in the absorbing process, reagent liquid is introduced into the reagent needle 1 through the sample absorbing port 3, the extending direction of the reagent needle 1 is the same as the moving track of the sample absorbing port 3, for example, when the moving track of the sample absorbing port 3 is circular arc, the extending direction of the corresponding reagent needle 1 is also circular arc, in the embodiment, the bottom of the inner cavity of the reagent container 2 is a slope surface 4, the slope surface 4 forms a low-lying area capable of converging reagent at the bottom of the reagent container 2, the low-lying area is a place with a lower position on the slope surface 4, the reagent liquid in the reagent container 2 flows and converges towards the low-lying area under the action of the slope surface 4, the sample absorbing port 3 moves towards the low-lying area along a preset moving track after the reagent container 2 is stretched into, for absorbing reagent, in the embodiment, the moving track of the sample absorbing port 3 is circular arc, the adopted moving track has a relatively uniform moving direction, the moving trend and the moving trend is the slope surface 4 is easy, the slope surface 3 is a beneficial to calculate the inclined angle between the slope surface 3 and the slope surface is beneficial to the slope surface 3, and the slope surface is beneficial to the slope surface is the slope surface 3, and the slope surface is required to be reduced, and the slope surface is the slope surface 4, and the slope surface is beneficial to be reduced, and the slope surface is the slope surface 3 and the slope surface is beneficial to be compared: the two straight lines (namely, the motion direction of the sample suction port 3 and the inclination direction of the slope surface 4) intersect to form a minimum positive angle; the distance here refers to the distance between the sample suction port 3 and the slope surface 4, and the distance between the sample suction port 3 and the slope surface 4 decreases during the descent of the reagent needle 1. Different from the existing moving mode that the reagent needle 1 vertically ascends and descends, the moving direction of the sample suction port 3 gradually approaches the slope surface 4 in the moving process of the sample suction port 3 towards the bottom of the reagent container 2 by changing the moving track of the sample suction port 3 at the end part of the reagent needle 1, so that rigid collision between the reagent needle 1 and the bottom of the reagent container 2 can be effectively avoided, the service lives of the reagent needle 1 and the reagent container 2 are prolonged, and the moving precision of the reagent needle 1 is maintained; in addition, the height of the sample sucking port 3 is reduced when the sample sucking port moves to a region close to the bottom of the reagent container 2, the descending distance can be controlled more accurately, the sample sucking port 3 is beneficial to being as close to and hovered at the bottom of the reagent container 2 as possible, and the residual quantity of the sucked reagent is reduced.
In order to reduce the residual amount of the reagent in the reagent container 2 and avoid the condition that the reagent needle 1 interferes with or collides with the bottom of the reagent container 2 in the operation process, the motion track of the sample suction port 3 in the embodiment is higher than the slope surface 4 or tangent to the slope surface 4, compared with the condition that the motion track of the sample suction port 3 and the bottom of the reagent container 2 are mutually perpendicular and crossed, the condition that the reagent needle 1 deforms can be avoided in a mode that the collision can only be avoided by adjusting the stroke or the impact force is relieved by adding a buffer device in the collision in the prior art, the embodiment ensures that the sample suction port 3 of the reagent needle 1 and the end part thereof cannot collide with the bottom of the reagent container 2 mutually, further avoids the condition that the reagent needle 1 and the bottom of the reagent container 2 deform due to the impact, and the sample suction port 3 is as close to the bottom of the reagent container 2 as possible in a tangent mode.
In order to protect the reagent needle 1 from deformation by collision, the direction of movement of the sample inlet 3 when it is attached to or near the slope surface 4 is parallel to the direction of inclination of the slope surface 4, namely: the motion direction is parallel to the inclination direction of the slope surface 4 when the sample suction port 3 is at a certain distance from the slope surface 4, so that the reagent needle 1 is hovered above the slope surface 4 at a certain interval through the design of the motion track, and the mode is more beneficial to avoiding the mutual interference or collision between the reagent needle 1 and the bottom of the reagent container 2, and has a better protection effect of the reagent needle 1.
In this embodiment, the top of the reagent container 2 is provided with a bottle opening 5 into which the reagent needle 1 extends, the movement direction of the sample absorbing port 3 at the bottle opening 5 is consistent with the axial direction of the bottle opening 5, so that the reagent needle 1 can be smoothly inserted into the bottle opening 5, in this embodiment, the reagent needle 1 is connected with a guiding mechanism, the guiding mechanism comprises a sliding block 6 and a sliding groove 7, the upper end of the reagent needle 1 is connected with the sliding block 6, the sliding block 6 is connected with and limited on the sliding groove 7, the guiding mechanism is provided with a position retaining structure, the position retaining structure can apply force to the sliding block 6 when the sample absorbing port 3 moves to an upper pole position or a lower pole position, so that the sample absorbing port 3 is kept at the upper pole position or the lower pole position, the position retaining structure comprises a connecting plate 8, a first magnetic part 9 and a second magnetic part 10, and when the sample absorbing port 3 moves to the upper pole position, the connecting plate 8 is magnetically connected with the first magnetic part 9; when the sample suction port 3 moves to the lower pole position, the connecting plate 8 is magnetically connected with the second magnetic component 10, the sliding block 6 is connected with the pushing hand 11, the pushing hand 11 extends outwards from the inside of the sliding groove 7, the pushing hand 11 and the sliding block 6 synchronously move, the analyzer further comprises a containing cavity 12, the reagent container 2 is installed in the containing cavity 12, the containing cavity 12 is provided with an outwards open structure, the sliding block 6 is connected with the shielding plate 13, the shielding plate 13 and the sliding block 6 synchronously move, when the sample suction port 3 moves to the upper pole position, the shielding plate 13 moves upwards to the upper side of the open structure, and when the sample suction port 3 moves to the lower pole position, the shielding plate 13 descends to the open structure and shields the same. By adopting the structure, the reagent container 2 can be ensured not to be influenced in taking and placing operations when the reagent container 2 is replaced, shading can be automatically carried out after the reagent container 2 is installed in place, the reagent is prevented from deteriorating when encountering light, when the reagent container 2 needs to be replaced, the pushing handle 11 is pushed upwards along the arc surface, after the reagent needle 1 completely leaves the reagent container 2, the pushing handle 11 is fixed under the action of the magnet at the corresponding position, the reagent container 2 is convenient to replace, after the reagent container 2 is replaced, the pushing handle 11 is pulled downwards along the arc surface, after the reagent needle 1 reaches the bottom of the reagent container 2, the pushing handle 11 is fixed under the action of the magnet, and the reagent needle 1 is convenient to absorb liquid. In this way, the operator applies force through the pushing hand 11 to drive the reagent needle 1 to move along the preset track, under the actuation of the force applied by the operator, the reagent needle 1 and the pushing hand 11 synchronously move, when the sample suction port 3 moves to the upper pole position or the lower pole position, the connecting plate 8 contacts with the magnetic component and is magnetically connected with the magnetic component to play a role of holding at the limit position, and the operator can release the holding at the limit position by applying a driving force overcoming the magnetic force as required and move as required.
As shown in fig. 4 and 5, as a preferred embodiment, unlike the prior art in which the slope surface is integrally provided, the slope surface of the reagent container 2 of the present embodiment includes a first slope surface section and a second slope surface section, the first slope surface section and the second slope surface section are inclined with each other, the lowest end of the first slope surface section and the lowest end of the second slope surface section are connected with each other to form a low-lying area, the low-lying area in the present embodiment is where the reagent solution at the bottom of the reagent container flows and converges along the slope surface, and is located at a lower position of the slope surface, the slope surface in the present embodiment is formed by combining the first slope surface section and the second slope surface section, in other words, the conventional slope surface in the prior art is an integrally linearly extending slope surface, the present embodiment is formed by combining the first slope surface section and the second slope surface section in a V shape, and as such, the present embodiment forms the slope surface in a V shape by the two slope surface sections which are inclined with each other and the lowest end is connected with each other, and the slope surface in the present embodiment has the same inclination degree, and the height and occupation of the slope surface is reduced under the condition that the reagent solution converges.
When the reagent container 2 adopts the above structure, the included angle between the movement direction of the sample suction port and the inclination direction of the inclined surface means: the included angle between the moving direction of the sample suction port and the inclination of the first slope surface section or the second slope surface section positioned below the sample suction port.
Specifically, in this embodiment, the sample suction port enters the reagent container 2 from the bottle mouth position close to the first slope surface section, and the included angle between the movement direction of the sample suction port and the inclination direction of the first slope surface section decreases as the distance between the sample suction port and the first slope surface section decreases.
It should be noted that, the included angle here means: the two straight lines (namely, the motion direction of the sample suction port and the corresponding inclination direction of the first inclination surface section or the second inclination surface section) intersect to form a minimum positive angle; the distance here refers to the distance between the sample suction port and the first slope surface section or the second slope surface section, and the distance between the sample suction port and the first slope surface section decreases in the descending process of the sample suction port. The first inclined surface section and the second inclined surface section in this embodiment are both disposed along the longitudinal direction of the reagent container 2, and in general, the longitudinal direction of the reagent container 2 is the pushing direction of the reagent container when the reagent container is loaded on the loader, that is: the length of the reagent vessel 2 in the longitudinal direction is longer than the width and height directions of the reagent vessel 2 in the left-right direction from the view point shown in fig. 5. The inclined directions of the first inclined surface section and the second inclined surface section are opposite, namely, the first inclined surface section and the second inclined surface section are connected together in a staggered mode, in other words, the included angle between the contact surfaces of the first inclined surface section and the reagent liquid and the contact surfaces of the second inclined surface section and the reagent liquid is smaller than 180 degrees, the inner bottom surface of the reagent container 2 is of a V-shaped structure, and the position where the lowest end of the first inclined surface section and the lowest end of the second inclined surface section are connected with each other, namely, the low-lying area, is just because the inclined directions of the first inclined surface section and the second inclined surface section are opposite, so that the reagent liquid can be converged at the connected position.
In this embodiment, the first bevel section is inclined to a greater extent than the second bevel section, i.e.: the slope of first inclined plane section is greater than the slope of second inclined plane section, the length of first inclined plane section is less than the length of second inclined plane section, in other words, first inclined plane section is short and the slope is steeper, second inclined plane section is long but the slope is slower, the height fall of first inclined plane section equals the height fall of second inclined plane section, from the side, first inclined plane section and second inclined plane section are asymmetric structure, be provided with the bottleneck that supplies the sample suction needle to get into at the top of reagent container 2, first inclined plane section sets up in the front end of container body, the bottleneck sets up in the top of first inclined plane section.
The bottom of the reagent container 2 comprises two bottom plates 14, the upper surfaces of the two bottom plates 14 are slope surfaces 4 at the bottom of the inner cavity of the reagent container 2, the lower surfaces of the bottom plates 14 are parallel to the upper surfaces, a positioning protruding part 15 protruding downwards is formed at the bottom of the reagent container 2 at the junction of the lower surfaces of the two bottom plates 14, the two bottom plates 14 which are inclined mutually are connected together, a slope surface 4 structure with good diversion and convergence effects is formed at the bottom of the inner cavity of the reagent container 2, and the position where the two bottom plates 14 are intersected is naturally protruding downwards and forms a positioning protruding part 15 which can be used for mounting and positioning, thereby having the effects of being beneficial to the internal confluence of the reagent container 2 and being beneficial to the positioning of the reagent container 2.
The analyzer further comprises a containing cavity 12, the reagent container 2 is arranged in the containing cavity 12, the containing cavity 12 is provided with an outward opening structure, the bottom of the containing cavity 12 is further provided with a positioning groove 16, and the positioning groove 16 is matched with a positioning protruding part 15 at the bottom of the reagent container 2 so that the reagent container 2 is positioned at a preset position. By adopting such a structure, through setting up a positioning groove 16 that has cooperation relation in the space of placing reagent container 2, constitute the structure of locking location with the help of reagent container 2 from the location bulge 15 that takes, realized the location effect after reagent container 2 placed holding chamber 12, thereby guaranteed reagent container 2 after putting into the analysis appearance, reagent container 2's bottleneck 5 pinpoints on reagent needle 1's motion track accurately, reduced the risk that reagent needle 1 pricks reagent container 2 bottleneck 5 outside because of reagent container 2's inaccurate bottleneck 5 of location skew appears, be provided with clamp plate 17 at holding chamber 12's top, clamp plate 17 in this embodiment is the sheet metal component, clamp plate 17 sets up in reagent container 2's top, when positioning groove 16 and location bulge 15 mutually support, clamp plate 17 can exert a force with location bulge 15 butt in positioning groove 16, can reduce reagent container 2's the possibility of slipping out after the installation is put into place, stability in the sampling process has been improved to reagent container 2.
In addition, be provided with the bar code in the top of reagent container 2, be provided with the RFID radio frequency chip on holding the cabin, this RFID radio frequency chip can scan the bar code on the reagent container 2, in order to obtain the number of times that the reagent was gathered, when the number of times that the reagent was gathered reached the upper limit value, send alarm signal and suggestion needs to change the reagent, the below of holding the cabin is provided with the opto-coupler for judge whether reagent needle 1 is in reagent container 2, when the pushing hands push up, the pushing hands can block the pipe canal, after the pull-down, the opto-coupler can sense reagent needle 1, and with the signal output feedback of surveying.
As shown in fig. 6, the present embodiment further provides a reagent sample absorbing assembly of a full-automatic sample analyzer, which is formed by combining at least two reagent sample absorbing mechanisms, wherein each reagent sample absorbing mechanism can work independently, and the specific structure and the working process of a single reagent sample absorbing mechanism are as described above, and are not repeated herein.
The invention also provides a sample analyzer comprising a reagent sample absorbing mechanism as described in the previous embodiments.
The foregoing is illustrative of the present invention and is not to be construed as limiting thereof, but rather, any modification, equivalent replacement, improvement or the like which comes within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (14)
1. The utility model provides a reagent sample absorbing mechanism, includes reagent needle and reagent container, the lower extreme of reagent needle is the sample absorbing mouth, reagent container's inner chamber bottom has the slope face, the slope face forms a low-lying area that can assemble reagent in reagent container's bottom, sample absorbing mouth is stretching into in the reagent container after the back along the motion trail orientation that predetermines the low-lying area removes in order to inhale the reagent, its characterized in that: the included angle between the moving direction of the sample suction port and the inclined direction of the slope surface is reduced along with the reduction of the distance between the sample suction port and the slope surface; the reagent needle is connected with guiding mechanism, guiding mechanism includes slider and spout, reagent needle's upper end is connected with the slider, the slider is connected and is spacing on the spout.
2. The reagent sample absorbing mechanism of claim 1, wherein: the motion track of the sample suction port is arc-shaped.
3. The reagent sample absorbing mechanism of claim 1, wherein: the motion track of the sample suction port is higher than the slope surface or tangential to the slope surface.
4. The reagent sample absorbing mechanism of claim 1, wherein: the motion direction of the sample suction opening when the sample suction opening is attached to or near the slope surface is parallel to the inclination direction of the slope surface.
5. The reagent sample absorbing mechanism of claim 1, wherein: the extending direction of the reagent needle is the same as the movement track of the sample suction port.
6. The reagent sample absorbing mechanism of claim 1, wherein: the top of the reagent container is provided with a bottle mouth into which a reagent needle extends, and the moving direction of the sample sucking port at the bottle mouth position is consistent with the axial direction of the bottle mouth.
7. The reagent sample absorbing mechanism of claim 1, wherein: the guide mechanism is provided with a position holding structure which can apply force to the sliding block when the sample suction port moves to the upper pole position or the lower pole position so that the sample suction port is held at the upper pole position or the lower pole position.
8. The reagent sampling mechanism of claim 7, wherein: the position maintaining mechanism comprises a first magnetic component, a second magnetic component and a connecting plate arranged on the sliding block, and when the sample suction port moves to the upper pole position, the connecting plate is magnetically connected with the first magnetic component; when the sample suction port moves to the lower pole position, the connecting plate is magnetically connected with the second magnetic component.
9. The reagent sample absorbing mechanism of claim 1, wherein: the sliding block is connected with a pushing handle, the pushing handle extends outwards from the inside of the sliding groove, and the pushing handle and the sliding block synchronously move.
10. The reagent sampling mechanism of claim 9, wherein: still including holding the chamber, reagent container installs in holding the intracavity, hold the chamber and have an outside open structure, the slider is connected with the shielding plate, shielding plate and slider synchronous movement, when inhaling the appearance mouth and remove the upper pole position, the shielding plate moves up to open structure's top, when inhaling the appearance mouth and remove the lower pole position, the shielding plate descends to open structure and shelter from it.
11. The reagent sampling mechanism of claim 10, wherein: the ramp surface of the reagent container includes a first ramp section and a second ramp section, the first and second ramp sections being sloped with respect to each other, a lowermost end of the first ramp section being interconnected with a lowermost end of the second ramp section to form the depressed area.
12. The reagent sampling mechanism of claim 11, wherein: the bottom end face shape of the reagent container is matched with the slope face shape, the bottom end face of the reagent container is provided with a positioning protruding part protruding downwards below the low-lying area, and the inner bottom of the accommodating cavity is provided with a positioning groove for accommodating the positioning protruding part.
13. The reagent sampling mechanism of claim 12, wherein: the outside top surface of reagent container is provided with the location draw-in groove, the top of holding the chamber is provided with the clamp plate, the clamp plate sets up in the top of reagent container, works as the positioning groove with the positioning bulge is when mutually supporting, the clamp plate can stretch into in the location draw-in groove, application of force will fix a position the bulge butt in the positioning groove.
14. A sample analyzer, characterized by: a reagent sampling mechanism comprising the device according to any one of claims 1 to 13.
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| CN108196077A (en) * | 2018-02-23 | 2018-06-22 | 迈克医疗电子有限公司 | Reagent container toter and delivery system |
| CN108663321B (en) * | 2018-04-02 | 2024-04-05 | 迈克医疗电子有限公司 | Test head, urine dry chemical analyzer and detection method thereof |
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