CN218412546U - Puddler, agitating unit and sample analysis appearance - Google Patents
Puddler, agitating unit and sample analysis appearance Download PDFInfo
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- CN218412546U CN218412546U CN202221780112.XU CN202221780112U CN218412546U CN 218412546 U CN218412546 U CN 218412546U CN 202221780112 U CN202221780112 U CN 202221780112U CN 218412546 U CN218412546 U CN 218412546U
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Abstract
The utility model is suitable for a medical equipment field discloses a puddler, agitating unit and sample analysis appearance. The stirring rod comprises a stirring part and a fixing part, wherein the stirring part is at least partially arranged in the reaction liquid in the reaction container in a penetrating mode so as to be used for stirring the reaction liquid in the reaction container; the fixed part is connected with the stirring part and exposed above the reaction liquid in the reaction container so as to be connected with the driving mechanism; the fixed part is columnar, and the radial dimension of the fixed part is smaller than the maximum width dimension of the stirring part. The utility model provides a puddler can effectively prevent reaction liquid to continue climbing, prevents that the pollution height of puddler from uprising.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a puddler, agitating unit and sample analysis appearance.
Background
The sample analyzer is usually configured to mix the sample to be detected and the detection reagent with a stirring rod after the sample to be detected and the detection reagent are added into the reaction container, so as to allow the sample to be detected and the detection reagent to react sufficiently. The sample analyzer is characterized in that the types of detection reagents of the sample analyzer are multiple, the stirring rod can contact different liquid media, and in order to eliminate carrying pollution among different liquid media, the stirring rod needs to be cleaned after working every time so as to remove residual substances on the surface of the stirring rod, and the substances are prevented from being brought into next reaction to cause cross pollution and influence the accuracy of a detection result.
The stirring rod is generally divided into a lower portion, which is a stirring portion for stirring the reaction solution in the reaction vessel, and an upper portion, which is a fixing portion for connecting the stirring rod to the driving mechanism. After the limitation of design and sample analyzer use for a certain period and age, when the puddler stirred reaction liquid in reaction vessel, the puddler was more close with reaction vessel's lateral wall laminating, consequently, took place capillary phenomenon easily between the lateral wall of puddler and reaction vessel, and reaction liquid can follow the puddler and climb to upper portion from the lower part for the pollution height of puddler highly uprises, is difficult to the sanitization. Unclean washing can cause problems such as increased carryover contamination and increased residual water, which can degrade the performance of the sample analyzer. Puddler washs unclean, and the pollutant remains and also can influence user experience on the surface.
At present, the following two schemes are generally adopted to solve the problems that the pollution height of the stirring rod becomes high and the stirring rod is difficult to clean: (1) increasing the cleaning height: the scheme can clean pollutants to a certain extent, but increases the cleaning height, and correspondingly increases the consumption of cleaning agents and cleaning water, thereby causing waste; (2) regular manual maintenance and cleaning: the method can better clean accumulated residual substances, but needs manual execution, cannot accurately control execution time and frequency, and has higher operation complexity. And abnormal operation or improper operation of the precision unit may cause damage or failure of the unit.
SUMMERY OF THE UTILITY MODEL
A first object of the present invention is to provide a stirring rod, which aims to solve the technical problem of climbing reaction liquid.
In order to achieve the above purpose, the utility model provides a scheme is: a paddle for a sample analyzer, the paddle comprising:
the stirring part is at least partially arranged in the reaction liquid in the reaction container in a penetrating way and is used for stirring the reaction liquid in the reaction container;
the fixing part is connected to the stirring part, exposed above the reaction liquid in the reaction container and used for being connected with the driving mechanism;
the fixed part is columnar, and the radial dimension of the fixed part is smaller than the maximum width dimension of the stirring part.
In one embodiment, the difference between the maximum width dimension of the stirring section and the radial dimension of the fixing section is 0.4mm to 0.8mm.
In one embodiment, the difference between the maximum width dimension of the stirring section and the radial dimension of the fixing section is 0.6mm.
A second object of the present invention is to provide a stirring rod, it is used for sample analyzer, the stirring rod includes:
the stirring part is at least partially arranged in the reaction liquid in the reaction container in a penetrating way and is used for stirring the reaction liquid in the reaction container;
the fixing part is connected with the stirring part, exposed above the reaction liquid in the reaction container and used for being connected with the driving mechanism;
the fixing part is in a cone-like shape at least at a part close to the stirring part, the radial dimension of the part of the fixing part in the cone-like shape extends towards a direction far away from the stirring part with a gradually increasing trend, and the minimum radial dimension of the fixing part is smaller than the maximum width dimension of the stirring part.
In one embodiment, a difference between a maximum width dimension of the stirring section and a minimum radial dimension of the fixing section is 0.4mm to 0.8mm.
A third object of the present invention is to provide a stirring rod, which is used for a sample analyzer, the stirring rod includes:
the stirring part is at least partially arranged in the reaction liquid in the reaction container in a penetrating way so as to stir the reaction liquid in the reaction container;
the fixing part is connected to the stirring part, exposed above the reaction liquid in the reaction container and used for being connected with the driving mechanism;
the fixing part is in a cone-like shape at least at a part close to the stirring part, the radial dimension of the part of the fixing part in the cone-like shape extends towards the direction far away from the stirring part with a gradually decreasing trend, and the maximum radial dimension of the fixing part is smaller than or equal to the maximum width dimension of the stirring part.
A fourth object of the present invention is to provide a stirring rod, which is used for a sample analyzer, the stirring rod includes:
the stirring part is at least partially arranged in the reaction liquid in the reaction container in a penetrating way and is used for stirring the reaction liquid in the reaction container;
the fixing part is connected to the stirring part, exposed above the reaction liquid in the reaction container and used for being connected with the driving mechanism;
the fixing part is flat and linear, and an included angle alpha is formed between the fixing part and one end, close to the fixing part, of the stirring part, wherein the included angle is more than 0 degree and less than or equal to 90 degrees.
In one embodiment, the cross section of the fixing portion is rectangular, oval or kidney-shaped.
A fifth object of the present invention is to provide a stirring rod, which is used for a sample analyzer, the stirring rod includes:
the stirring part is at least partially arranged in the reaction liquid in the reaction container in a penetrating way so as to stir the reaction liquid in the reaction container;
the fixing part is connected with the stirring part, exposed above the reaction liquid in the reaction container and used for being connected with the driving mechanism;
the fixing part is provided with an annular groove at a position close to the stirring part.
In one embodiment, the fixing portion is columnar or conical-like at least at a portion near the stirring portion, and a difference between a maximum width dimension of the stirring portion and a minimum radial dimension of a portion of the fixing portion where the annular groove is formed is 0.4mm to 0.8mm.
In one embodiment, the fixing portion is flat and linear, and a difference between a maximum width dimension of the stirring portion and a maximum width dimension of a portion of the fixing portion where the annular groove is formed is 0.4mm to 0.8mm.
In one embodiment, the stirring section is a flat linear or spiral blade.
In one embodiment, the stirring part is a member made of a titanium alloy; or,
the stirring part is a component made of cobalt-nickel alloy.
In one embodiment, a center line of the fixing portion and a center line of the stirring portion are collinear.
In one embodiment, the stirring section and the fixing section are in smooth transition.
In one embodiment, the surface of the stirring part is provided with a corrosion-resistant plating layer.
In one embodiment, the corrosion-resistant coating is a tungsten carbide alloy coating.
A sixth object of the present invention is to provide an agitating apparatus, the agitating apparatus includes the above-mentioned stirring rod and with the fixed part is connected in order to be used for driving stirring rod pivoted actuating mechanism.
A seventh object of the present invention is to provide a sample analyzer, which includes:
the bearing device is used for bearing a reaction container;
the sampling device is used for collecting a sample and adding at least part of the collected sample into the reaction container;
a reagent dispensing device for injecting a reagent into the reaction vessel;
the stirring device is used for stirring the sample and the reagent in the reaction container;
and the detection device is used for detecting a reaction liquid formed by mixing the sample and the reagent in the reaction container.
The utility model provides a stirring rod, a stirring device and a sample analyzer, which comprises a stirring part and a fixing part, wherein the radial dimension of the fixing part is smaller than the maximum width dimension of the stirring part, so that when the stirring rod extends into a reaction container for stirring, the distance between the fixing part and the side wall of the reaction container is greater than the distance between the stirring part and the side wall of the reaction container in the maximum width direction of the stirring part; and the fixed part is exposed above the reaction liquid when the stirring rod stirs the reaction liquid. Therefore, when the distance between the stirring part and the side wall of the reaction vessel is too small, the capillary phenomenon occurs, and the reaction solution climbs, the distance between the fixing part and the side wall of the reaction vessel is increased, the capillary phenomenon is eliminated, the reaction solution can be effectively prevented from continuously climbing, and therefore the pollution height of the stirring rod can be prevented from being increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of a stirring rod according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of another stirring rod in a reaction vessel according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of another stirring rod in a reaction vessel according to an embodiment of the present invention;
fig. 4 is a block diagram of a sample analyzer according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a stirring rod in a reaction vessel according to a second embodiment of the present invention;
FIG. 6 is a sectional view of another stirring rod in a reaction vessel according to a second embodiment of the present invention;
FIG. 7 is a sectional view of another stirring rod in a reaction vessel according to a second embodiment of the present invention;
FIG. 8 is a cross-sectional view of another stirring rod in a reaction vessel according to a second embodiment of the present invention;
FIG. 9 is a cross-sectional view of a stirring rod in a reaction vessel according to a third embodiment of the present invention;
FIG. 10 is a sectional view of another stirring rod in a reaction vessel according to a third embodiment of the present invention;
fig. 11 is a top view of a stirring rod according to the fourth embodiment of the present invention;
fig. 12 is a schematic structural view of a stirring rod according to a fifth embodiment of the present invention;
fig. 13 is a cross-sectional view of another stirring rod in a reaction vessel according to a fifth embodiment of the present invention;
fig. 14 is a cross-sectional view of another stirring rod in a reaction vessel according to a fifth embodiment of the present invention;
fig. 15 is a cross-sectional view of another stirring rod in a reaction vessel according to a fifth embodiment of the present invention.
The reference numbers illustrate: 100. a stirring rod; 10. a stirring section; 20. a fixed part; 21. an annular groove; 200. a reaction vessel; 300. reaction solution; 400. a stirring device; 500. a carrying device; 600. a sampling device; 700. a reagent dispensing device; 800. and (4) a detection device.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components in a specific posture, the motion situation, etc., and if the specific posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1 to 3, a stirring rod 100 according to an embodiment of the present invention is used for a sample analyzer, and the stirring rod 100 includes a stirring portion 10 and a fixing portion 20. The stirring unit 10 is disposed at least partially through the reaction solution 300 in the reaction container 200, and is configured to stir the reaction solution 300 in the reaction container 200. The fixing portion 20 is connected to the stirring portion 10 and exposed above the reaction solution 300 in the reaction vessel 200 for connecting with a driving mechanism (not shown). Wherein, the fixing portion 20 is in a column shape, and the radial dimension of the fixing portion 20 is smaller than the maximum width dimension of the stirring portion 10.
In general, the reaction vessel 200 is a small-sized device in the radial direction such as a test tube, and when the stirring rod 100 is inserted into the reaction vessel 200 to stir the reaction solution 300 in the reaction vessel 200, a capillary phenomenon occurs due to various reasons (for example, when the stirring rod 100 is deviated when being inserted into the reaction vessel 200 and one side of the stirring rod 100 is close to the side wall of the reaction vessel 200), and the reaction solution 300 rises at the moment (2 s to 3 s) when the stirring rod 100 is inserted into the reaction solution 300. With the above-described configuration, since the radial dimension of the fixing portion 20 is smaller than the maximum width dimension of the stirring portion 10, when the stirring rod 100 is inserted into the reaction vessel 200 for stirring, the distance L between the fixing portion 20 and the side wall of the reaction vessel 200 in the maximum width direction of the stirring portion 10 is set to be smaller than the maximum width dimension of the stirring portion 10 1 Is larger than the distance L between the stirring part 10 and the side wall of the reaction vessel 200 2 . The fixing portion 20 is exposed above the reaction solution 300 when the stirring rod 100 stirs the reaction solution 300. When the distance L between the stirring part 10 and the side wall of the reaction vessel 200 is reduced 2 When the distance is too small, a capillary phenomenon occurs, in which the reaction solution 300 ascends due to the distance L between the fixing part 20 and the side wall of the reaction vessel 200 1 The size of the reaction solution 300 is increased and eliminated, and the reaction solution is effectively prevented from continuously climbing, so that the contamination level of the stirring rod 100 can be prevented from increasing. Therefore, the embodiment of the present invention provides a stirring rod 100, which can effectively eliminate the reaction liquid 300 from continuously climbing upwards, and avoid the situation that the pollution height of the stirring rod 100 becomes high and the cleaning is difficult to occur.
In one embodiment, the difference between the maximum width dimension of the stirring section 10 and the radial dimension of the fixing section 20 is 0.4mm to 0.8mm. In practical application, the maximum width dimension of the stirring part 10 is 1.9mm, and the radial dimension of the fixing part 20 is 1.1mm to 1.5mm. With this arrangement, the fixing portion 20 can be secured with sufficient strength, and the reaction solution 300 can be prevented from climbing. In a preferred embodiment, the difference between the maximum width dimension of the stirring section 10 and the radial dimension of the fixing section 20 is 0.6mm. In practical application, the maximum width dimension of the stirring part 10 is 1.9mm, and the radial dimension of the fixing part 20 is 1.3mm.
In one embodiment, the stirring section 10 is flat and linear. By making the stirring section 10 flat and linear, the stirring efficiency of the stirring bar 100 is improved and the reaction solution 300 is quickly and uniformly mixed when the stirring bar 100 is rotated. Of course, in other embodiments, the stirring section 10 may be a helical blade.
In one embodiment, the fixing portion 20 has a cylindrical shape. By providing the fixing portion 20 with a cylindrical shape, the outer contour of the fixing portion 20 is prevented from having a prism-like structure, which facilitates cleaning and facilitates easy cleaning.
Referring to fig. 1-2, the center line of the fixing portion 20 and the center line of the stirring portion 10 are collinear. By setting the center line of the fixing part 20 and the center line of the stirring part 10 to be collinear, the distances between the outer contour of the two opposite sides of the fixing part 20 and the center line are both smaller than the distances between the outer contour of the two opposite sides of the stirring part 10 and the center line along the maximum width direction of the stirring part 10, so that the distances between the outer contour of the two opposite sides of the fixing part 20 and the side wall of the reaction vessel 200 are both larger than the distances between the outer contour of the two opposite sides of the stirring part 10 and the side wall of the reaction vessel 200, and the climbing of the reaction liquid 300 is effectively avoided. Of course, as an alternative embodiment, referring to fig. 3, it is also possible that the center line of the fixing portion 20 and the center line of the stirring portion 10 are offset.
Referring to fig. 1, the stirring portion 10 and the fixing portion 20 are in smooth transition. By so doing, the prism-like structure between the stirring section 10 and the fixing section 20 is prevented, facilitating cleaning. Of course, as an alternative embodiment, referring to fig. 2, a non-smooth transition between the stirring part 10 and the fixing part 20 is also possible.
In one embodiment, the stirring portion 10 and the fixing portion 20 are integrally formed. It is understood that in other embodiments, the stirring part 10 and the fixing part 20 are separately manufactured and then assembled into the stirring rod 100.
As an embodiment, the stirring section 10 is a member made of a titanium alloy. Because current puddler is made by the higher stainless steel material of iron content, iron in the puddler can get into reaction liquid 300 in the stirring process, if carry out iron item to the sample and detect, can lead to iron content testing result to be on the high side in the sample, detects the decline of accuracy. At present, the condition that the detection result of an iron item in a sample is inaccurate is solved by coating a coating made of a non-ferrous material on the outer surface of a stirring rod or passivating the stainless steel stirring rod, the coating made of the non-ferrous material on the outer surface of the stirring rod separates a stainless steel material of the stirring rod from a reaction liquid 300, so that the condition that iron in the stainless steel material enters the reaction liquid 300, but the coating falls off after long-term use, and the detection result is still inaccurate once the coating falls off; when the stainless steel stirring rod is passivated, a compact oxide film is formed on the surface of the stirring rod, and the oxide film prevents iron from being separated out, but iron can be separated out as it is when the stirring rod is left unused for a long time, so that the method still influences the accuracy of the detection result of the iron project. And the embodiment of the utility model provides a make stirring portion 10 through adopting the titanium alloy, because iron content is very little, so can not influence the accuracy that the iron project detected. It is understood that in other embodiments, it is also possible that the stirring section 10 is a member made of cobalt-nickel alloy.
As an embodiment, a corrosion-resistant coating is arranged on the surface of the stirring part, and the corrosion-resistant coating can enhance the corrosion effect of the stirring rod on the reagent and prevent the precipitation of iron from influencing the detection of iron items. The surface of the stirring part is provided with a corrosion-resistant coating, which means that at least part of the surface of the stirring part is provided with the corrosion-resistant coating, namely the end part area contacted with liquid. In some embodiments, all surfaces of the stirring section are provided with a corrosion resistant coating. The corrosion-resistant coating layer may have good acid-base resistance and corrosion resistance, and examples thereof include coatings of transition metals such as carbon, nitrogen and oxide, and commonly include TiN, crN, alN, zrN, nbN, WC, al2O3, tiAlN, tiZrN, tiCrN and TiCN. Alternatively, the coating on the stirring rod may be provided with a WC (tungsten carbide) coating which has a better corrosion resistance and an effect of preventing iron precipitation than other corrosion-resistant coatings.
The embodiment of the present invention further provides an agitating device 400, in which the agitating device 400 includes the above-mentioned stirring rod 100 and a driving mechanism (not shown) connected with the fixing portion 20 for driving the stirring rod 100 to rotate. In practical applications, after the stirring rod 100 extends into the reaction vessel 200, the driving mechanism drives the stirring rod 100 to rotate, so as to stir the reaction solution 300 in the reaction vessel 200. Through adopting foretell puddler 100, the embodiment of the utility model provides a situation that reaction liquid 300 climbed can not appear in agitating unit 400 to when carrying out iron item detection to the sample, the testing result rate of accuracy is high.
Referring to fig. 2 and 4, an embodiment of the present invention further provides a sample analyzer, which includes a carrying device 500, a sampling device 600, a reagent dispensing device 700, a detecting device 800, and the stirring device 400. The carrier 500 is used for carrying the reaction vessel 200. The sampling device 600 is used to collect a sample and add at least a portion of the collected sample to the reaction vessel 200. The reagent dispensing device 700 is used to inject a reagent into the reaction vessel 200. The stirring device 400 is used to stir the sample and the reagent in the reaction container 200. The detection device 800 is used for detecting the reaction solution 300 in the reaction container 200, which is formed by mixing the sample and the reagent. Because of adopting foretell agitating unit 400, the embodiment of the utility model provides a condition that reaction liquid 300 climbed can not appear in the sample analysis appearance to when carrying out iron item detection to the sample, the testing result rate of accuracy is high.
In operation, the reagent dispensing device 700 injects a reagent into the reaction vessel 200, the sampling device 600 introduces at least a part of the collected sample into the reaction vessel 200, the stirring device 400 stirs and mixes the sample and the reagent in the reaction vessel 200 to form the reaction solution 300, and the detection device 800 detects the reaction solution 300 in the reaction vessel 200. Of course, the reagent dispensing device 700 may inject the reagent into the reaction vessel 200 after the sampling device 600 has introduced at least a part of the collected sample into the reaction vessel 200.
The sampling device 600 is used to collect a sample and add at least a portion of the collected sample to the reaction vessel 200. In a preferred embodiment, the sampling device 600 comprises a sample needle, which is moved back and forth in two or three dimensions by a two or three dimensional drive mechanism, such that the sample needle can be moved to a sample aspirating position to aspirate a sample, to a reaction vessel 200 to be loaded, and to inject the sample into the reaction vessel 200.
The reagent dispensing device 700 is used to inject a reagent into the reaction vessel 200. In a preferred embodiment, the reagent dispensing device 700 includes a reagent needle that is moved back and forth in space in two or three dimensions by a two or three dimensional drive mechanism so that the reagent needle can be moved to a reagent site to aspirate a reagent and to a reaction vessel 200 to which the reagent is to be added and to inject the reagent into the reaction vessel 200.
The detection device 800 is used to detect the reaction solution 300 formed by mixing the sample and the reagent in the reaction vessel 200 to obtain the detection data of the item. In some embodiments, the detection device 800 comprises an incubation component and a photometric component, wherein the incubation component is used for incubation after the stirring device 400 stirs the reaction solution 300 in the reaction container 200, and the photometric component is used for photometric measurement of a sample obtained after the incubation of the reaction solution 300 is completed, so as to obtain the reaction data of the sample.
As an embodiment, the sample analyzer may be any one of a biochemical analyzer, a biochemical immunoassay analyzer, a coagulation analyzer, and a blood cell analyzer.
As an embodiment, the stirring device 400 may be applied to a sample analysis system having two or more sample analyzers.
Example two:
referring to fig. 1 and fig. 5-8, the difference between the first embodiment and the second embodiment is the shape of the fixing portion 20. In the first embodiment, the fixing portion 20 is a column; in the present embodiment, the fixing portion 20 is formed in a cone-like shape at least at a portion near the stirring portion 10.
Referring to fig. 5 to 8, the stirring rod 100 according to the embodiment of the present invention includes a stirring portion 10 and a fixing portion 20, wherein the stirring portion 10 is at least partially inserted into the reaction liquid 300 in the reaction container 200 to stir the reaction liquid 300 in the reaction container 200; the fixing portion 20 is connected to the stirring portion 10 and exposed above the reaction solution 300 in the reaction vessel 200 for connecting with the driving mechanism. Wherein, the fixing part 20 is in a cone-like shape at least at a part close to the stirring part 10, the radial dimension of the part of the fixing part 20 in the cone-like shape extends towards a direction far away from the stirring part 10 with a gradually increasing trend, and the minimum radial dimension of the fixing part 20 is smaller than the maximum width dimension of the stirring part 10. In the present embodiment, the minimum radial dimension of the fixing portion 20 is the radial dimension of the fixing portion 20 connected to the end of the stirring portion 10.
By adopting the above technical solution, when the capillary phenomenon occurs due to the too small distance between the stirring part 10 and the side wall of the reaction vessel 200, the reaction liquid 300 ascends, and the capillary phenomenon is eliminated due to the increased distance between the fixing part 20 and the side wall of the reaction vessel 200, thereby effectively preventing the reaction liquid 300 from continuously ascending, and thus preventing the pollution height of the stirring rod 100 from becoming high.
In one embodiment, the difference between the maximum width dimension of the stirring section 10 and the minimum radial dimension of the fixing section 20 is 0.4mm to 0.8mm. With this arrangement, the fixing portion 20 can be secured with sufficient strength, and the reaction solution 300 can be prevented from climbing. In a preferred embodiment, the difference between the maximum width dimension of the stirring section 10 and the minimum radial dimension of the fixing section 20 is 0.6mm.
In addition to the above differences, the stirring rod 100 and its components provided in this embodiment can be optimally designed with reference to the first embodiment, and will not be described in detail herein.
Example three:
referring to fig. 5-10, the present embodiment is different from the second embodiment in that the shape of the fixing portion 20 is different. In the second embodiment, the radial dimension of the portion of the fixing portion 20 in the shape of a cone-like shape extends in a direction away from the stirring portion 10 with a gradually increasing tendency; in the present embodiment, the radial dimension of the conical-like portion of the fixing portion 20 extends in a direction away from the stirring portion 10 with a gradually decreasing trend.
Referring to fig. 9, the stirring rod 100 according to an embodiment of the present invention includes a stirring portion 10 and a fixing portion 20, wherein the stirring portion 10 is at least partially inserted into the reaction liquid 300 in the reaction container 200 to stir the reaction liquid 300 in the reaction container 200; the fixing portion 20 is connected to the stirring portion 10 and exposed above the reaction solution 300 in the reaction vessel 200 for connecting with the driving mechanism. Wherein, the fixing part 20 is in a cone-like shape at least at a part close to the stirring part 10, the radial dimension of the part of the fixing part 20 in the cone-like shape extends towards a direction far away from the stirring part 10 with a gradually decreasing trend, and the maximum radial dimension of the fixing part 20 is equal to the maximum width dimension of the stirring part 10.
In this embodiment, the maximum radial dimension of the fixing portion 20 is the radial dimension of the fixing portion 20 connected to one end of the stirring portion 10, the maximum radial dimension of the fixing portion 20 is equal to the maximum width dimension of the stirring portion 10, and the radial dimensions of other portions of the fixing portion 20 are smaller than the maximum width dimension of the stirring portion 10. Therefore, when the stirring rod 100 is inserted into the reaction vessel 200 for stirring, the distance between the other portion of the fixing portion 20 and the sidewall of the reaction vessel 200 in the maximum width direction of the stirring rod 100 is greater than the distance between the stirring rod 100 and the sidewall of the reaction vessel 200. When the distance between the stirring section 10 and the sidewall of the reaction vessel 200 is too small, a capillary phenomenon occurs, and the reaction solution 300 rises, and the capillary phenomenon is eliminated by increasing the distance between the other part of the fixing section 20 and the sidewall of the reaction vessel 200, and the reaction solution 300 is effectively prevented from continuously rising, so that the contamination level of the stirring rod 100 can be prevented from increasing. Of course, as an alternative embodiment, referring to fig. 10, it is also possible that the maximum radial dimension of the fixing portion 20 is smaller than the maximum width dimension of the stirring portion 10.
In addition to the above differences, the stirring rod 100 and its components provided in this embodiment can be optimally designed with reference to the first embodiment and the second embodiment, and will not be described in detail herein.
Example four:
referring to fig. 1-3 and 5-11, the present embodiment is different from the first to third embodiments in that the shape of the fixing portion 20 is different. In the first embodiment, the fixing portion 20 is a column; in the second and third embodiments, the fixing portion 20 is formed in a cone-like shape at least at a portion near the stirring portion 10; in the present embodiment, the fixing portion 20 is flat and linear.
Referring to fig. 2 and 11, the stirring rod 100 according to the embodiment of the present invention includes a stirring portion 10 and a fixing portion 20, wherein the stirring portion 10 at least partially penetrates through the reaction solution 300 in the reaction container 200 to stir the reaction solution 300 in the reaction container 200; the fixing portion 20 is connected to the stirring portion 10 and exposed above the reaction solution 300 in the reaction vessel 200 for connecting with the driving mechanism. Wherein, the fixing portion 20 is flat and linear, and the fixing portion 20 and the end of the stirring portion 10 close to the fixing portion 20 form an included angle α, wherein the included angle is in the range of 0 ° < α ≤ 90 °.
In this embodiment, since the fixing portion 20 is flat and linear, and the fixing portion 20 and the end of the stirring portion 10 close to the fixing portion 20 form an included angle α, where α is greater than 0 ° < α ≦ 90 °, the size of the fixing portion 20 is smaller than that of the stirring portion 10 in the maximum width direction of the stirring portion 10, and thus, when the stirring rod 100 is inserted into the reaction vessel 200 for stirring, the distance between the fixing portion 20 and the side wall of the reaction vessel 200 is greater than the distance between the stirring portion 10 and the side wall of the reaction vessel 200 in the maximum width direction of the stirring portion 10.
As an embodiment, the cross-section of the fixing portion 20 may be rectangular. Of course, in other embodiments, the cross-section of the fixing portion 20 may be oval or kidney-shaped. The waist-shaped cross section is characterized in that two opposite sides of the cross section are straight lines, the other two opposite sides of the cross section are arc-shaped lines, and two ends of each arc-shaped line are respectively connected with one straight line.
In addition to the above differences, the stirring rod 100 and its components provided in this embodiment can be optimally designed with reference to the first to third embodiments, and will not be described in detail herein.
Example five:
referring to fig. 12 to 15, the present embodiment is different from the first to fourth embodiments in that the fixing portion 20 is formed with an annular groove 21 at a portion close to the stirring portion 10.
Referring to fig. 12 to 15, a stirring rod 100 according to an embodiment of the present invention includes a stirring portion 10 and a fixing portion 20, wherein the stirring portion 10 is at least partially inserted into a reaction solution 300 in a reaction container 200 to stir the reaction solution 300 in the reaction container 200; the fixing portion 20 is connected to the stirring portion 10 and exposed above the reaction solution 300 in the reaction vessel 200 for connecting with the driving mechanism. The fixing portion 20 has an annular groove 21 formed at a position close to the stirring portion 10. By providing the annular groove 21, when the stirring rod 100 is inserted into the reaction vessel 200 for stirring, the distance between the portion of the fixing portion 20 where the annular groove 21 is formed and the side wall of the reaction vessel 200 is greater than the distance between the other portions and the side wall of the reaction vessel 200, and thus the reaction solution 300 can be effectively prevented from climbing.
Referring to fig. 12-14, the fixing portion 20 is in a cylindrical shape, and the fixing portion 20 is formed with an annular groove 21 at a position close to the stirring portion 10. In the stirring rod 100 shown in fig. 12, the center line of the stirring section 10 and the center line of the fixing section 20 are offset, and in the stirring rod 100 shown in fig. 13 and 14, the center line of the stirring section 10 and the center line of the fixing section 20 are collinear. Of course, as an alternative embodiment, referring to fig. 15, it is also possible that the fixing portion 20 is formed in a cone-like shape at least at a portion near the stirring portion 10.
In one embodiment, the difference between the maximum width of the stirring part 10 and the radial dimension of the fixing part 20 where the annular groove 21 is formed is 0.4mm to 0.8mm.
As an embodiment, referring to fig. 14, the bottom wall of the annular groove 21 is arc-shaped, and the difference between the maximum width dimension of the stirring portion 10 and the minimum radial dimension of the portion of the fixing portion 20 where the annular groove 21 is formed is 0.4mm to 0.8mm.
In one embodiment, the fixing portion 20 is flat and linear, and the difference between the maximum width of the stirring portion 10 and the maximum width of the fixing portion 20 where the annular groove 21 is formed is 0.4mm to 0.8mm.
In addition to the above differences, the stirring rod 100 and its components provided in this embodiment can be optimally designed with reference to the first to fourth embodiments, and are not described in detail herein.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the conception of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (19)
1. A paddle for a sample analyzer, comprising:
the stirring part is at least partially arranged in the reaction liquid in the reaction container in a penetrating way so as to stir the reaction liquid in the reaction container;
the fixing part is connected to the stirring part, exposed above the reaction liquid in the reaction container and used for being connected with the driving mechanism;
the fixed part is columnar, and the radial dimension of the fixed part is smaller than the maximum width dimension of the stirring part.
2. The stirring rod of claim 1, wherein the difference between the maximum width dimension of the stirring portion and the radial dimension of the fixing portion is 0.4mm to 0.8mm.
3. The stirring rod of claim 2, wherein the difference between the maximum width dimension of the stirring portion and the radial dimension of the fixing portion is 0.6mm.
4. A paddle for a sample analyzer, comprising:
the stirring part is at least partially arranged in the reaction liquid in the reaction container in a penetrating way so as to stir the reaction liquid in the reaction container;
the fixing part is connected with the stirring part, exposed above the reaction liquid in the reaction container and used for being connected with the driving mechanism;
the fixing part is in a cone-like shape at least at a part close to the stirring part, the radial dimension of the part of the fixing part in the cone-like shape extends towards a direction far away from the stirring part with a gradually increasing trend, and the minimum radial dimension of the fixing part is smaller than the maximum width dimension of the stirring part.
5. The paddle of claim 4, wherein the difference between the maximum width dimension of the paddle portion and the minimum radial dimension of the stationary portion is between 0.4mm and 0.8mm.
6. A stir bar for a sample analyzer, comprising:
the stirring part is at least partially arranged in the reaction liquid in the reaction container in a penetrating way and is used for stirring the reaction liquid in the reaction container;
the fixing part is connected to the stirring part, exposed above the reaction liquid in the reaction container and used for being connected with the driving mechanism;
the fixing part is in a cone-like shape at least at a part close to the stirring part, the radial dimension of the part of the fixing part in the cone-like shape extends towards a direction far away from the stirring part with a gradually decreasing trend, and the maximum radial dimension of the fixing part is smaller than or equal to the maximum width dimension of the stirring part.
7. A paddle for a sample analyzer, comprising:
the stirring part is at least partially arranged in the reaction liquid in the reaction container in a penetrating way and is used for stirring the reaction liquid in the reaction container;
the fixing part is connected with the stirring part, exposed above the reaction liquid in the reaction container and used for being connected with the driving mechanism;
the fixing part is flat and linear, and an included angle alpha is formed between the fixing part and one end, close to the fixing part, of the stirring part, wherein the included angle is more than 0 degree and less than or equal to 90 degrees.
8. The stirring rod of claim 7, wherein the cross-section of the fixing portion is rectangular or oval or kidney-shaped.
9. A paddle for a sample analyzer, comprising:
the stirring part is at least partially arranged in the reaction liquid in the reaction container in a penetrating way and is used for stirring the reaction liquid in the reaction container;
the fixing part is connected with the stirring part, exposed above the reaction liquid in the reaction container and used for being connected with the driving mechanism;
the fixing part is provided with an annular groove at a position close to the stirring part.
10. The stirring rod as claimed in claim 9, wherein the fixing portion has a cylindrical shape or a cone-like shape at least at a portion near the stirring portion, and a difference between a maximum width dimension of the stirring portion and a minimum radial dimension of a portion of the fixing portion where the annular groove is formed is 0.4mm to 0.8mm.
11. The stirring rod as set forth in claim 9, wherein the fixing portion is formed in a flat linear shape, and the difference between the maximum width dimension of the stirring portion and the maximum width dimension of the fixing portion at the portion where the annular groove is formed is 0.4mm to 0.8mm.
12. A stirring rod according to any one of claims 1 to 11, wherein the stirring section is a flat linear or helical blade.
13. A stirring rod according to any one of claims 1 to 11, wherein the stirring section is a member made of a titanium alloy; or,
the stirring part is a component made of cobalt-nickel alloy.
14. A beater bar according to any one of claims 1 to 11, wherein the centre line of the stationary portion and the centre line of the beater portion are collinear.
15. A beater bar according to any of claims 1 to 11, wherein the beater portion and the anchoring portion are in smooth transition.
16. A stirring rod according to any one of claims 1 to 11, characterized in that the surface of the stirring section is provided with a corrosion-resistant coating.
17. The stir bar of claim 16 wherein the corrosion-resistant coating is a tungsten carbide alloy coating.
18. A mixing apparatus, comprising a mixing rod as claimed in any one of claims 1 to 17 and a drive mechanism connected to the fixed portion for driving the mixing rod to rotate.
19. A sample analyzer, comprising:
the carrying device is used for carrying a reaction container;
a sampling device for collecting a sample and adding at least part of the collected sample into the reaction vessel;
a reagent dispensing device for injecting a reagent into the reaction vessel;
the stirring device of claim 18, wherein the stirring device is used for stirring the sample and the reagent in the reaction container;
and the detection device is used for detecting a reaction liquid formed by mixing the sample and the reagent in the reaction container.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122211567 | 2021-09-10 | ||
| CN2021222115671 | 2021-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218412546U true CN218412546U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221780112.XU Active CN218412546U (en) | 2021-09-10 | 2022-07-11 | Puddler, agitating unit and sample analysis appearance |
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| Country | Link |
|---|---|
| CN (1) | CN218412546U (en) |
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- 2022-07-11 CN CN202221780112.XU patent/CN218412546U/en active Active
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