CN114061840B

Movatterモバイル変換

Info

Publication number: CN114061840B
Application number: CN202010760601.8A
Authority: CN
Inventors: 刘功生
Original assignee: Shenzhen Dymind Biotechnology Co Ltd
Current assignee: Shenzhen Dymind Biotechnology Co Ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2022-08-09
Anticipated expiration: 2040-07-31
Also published as: CN114061840A

Abstract

The invention discloses a swab leakage detection device and a detection method thereof, and a sample analyzer, wherein the swab leakage detection device comprises a connecting cover body, a liquid accumulation part and a detection element, the connecting cover body and a swab body are enclosed to form an accommodating cavity, the liquid accumulation part is accommodated in the accommodating cavity and positioned below a needle washing groove, at least one part of the liquid accumulation part covers the inner wall of the needle washing groove, the liquid accumulation part can accumulate a preset amount of liquid, the detection element is accommodated in the accommodating cavity and positioned below the liquid accumulation part, and when the amount of the liquid accumulated in the liquid accumulation part exceeds the preset amount, the detection element is triggered to send a signal. This swab weeping detection device can send out the signal to user identification to in time make the correspondence, make the user can control the change opportunity of swab body accurately, be unlikely to too early change the swab body and cause the waste, also be unlikely to too late change the swab body and cause bad consequence.

Description

Swab leakage detection device and detection method thereof, and sample analyzer

Technical Field

The invention relates to the technical field of medical instruments, in particular to a swab leakage detection device, a detection method thereof and a sample analyzer.

Background

Medical devices are generally equipped with a sampling needle for sampling a sample or a reagent and releasing them into a corresponding container, and the sampling needle needs to be cleaned in order to avoid contamination of the sample or the reagent and influence of the detection result.

Generally adopt swab body washing mode when wasing the sampling needle, realize wasing through the up-and-down motion of sampling needle in swab body promptly, the swab body can be along with the sampling needle moves and saves the cleaning time. However, in the existing swab body needle washing technology, due to the influence of factors such as processing quality of the swab body, assembly mode of the swab body, long-term use inner wall abrasion of the swab body, long-term use inner wall scaling of the swab body and other unknown factors, liquid leakage of the swab body with different degrees can occur. If the leakage of the swab body falls into the container in the working area, the corresponding container is polluted, and the detection result is possibly influenced greatly, so that clinical diagnosis and decision are seriously influenced, even medical accidents are possibly caused, and the leakage problem of the swab body cannot be ignored.

At present, prevent to appear because the bad consequence that the weeping brought through the mode that adopts the regular change swab body, but this kind of mode can't accomplish in time to the weeping condition and deal with, it is blind passively, often can appear when changing the swab body, the phenomenon that the weeping has taken place, or the swab body can continue to use in reality, still with the phenomenon of its change, from this normal use that can't realize the swab body, can't make the swab body in its normal use time limit, the opportunity of changing the swab body is matchd accurately, can't make when every swab body is changed promptly, this swab body that is changed is in exactly in this opportunity of being changed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a swab leakage detection device, a detection method thereof and a sample analyzer, which are used for solving the technical problem that the leakage condition cannot be responded in time.

According to a first aspect, an embodiment provides a swab leakage detection device comprising:

the connecting cover body is connected to the bottom of the swab body and surrounds the swab body to form a containing cavity, and the connecting cover body is provided with a cover body through hole correspondingly communicated with the needle washing groove of the swab body;

the liquid accumulation piece is accommodated in the accommodating cavity and positioned below the needle washing groove, at least one part of the liquid accumulation piece covers the inner wall of the needle washing groove, and the liquid accumulation piece can accumulate a preset amount of liquid;

and the detection element is accommodated in the accommodating cavity and positioned below the liquid accumulation piece, and when the amount of liquid accumulated in the liquid accumulation piece exceeds the preset amount, the detection element is triggered to send out a signal.

In some embodiments of the swab leakage detection device, the liquid accumulation member is made of an absorbent material.

In some embodiments of the swab leakage detection device, the absorbent material comprises at least one of foam, chrysotile, and asbestos fibers.

In some embodiments of the swab leakage detection device, the detection element comprises a circuit board, wherein the circuit on the circuit board is in an on state, and when the liquid flows into the detection element, the liquid short circuits the circuit, thereby emitting a signal.

In some embodiments of the swab leakage detection device, the detection element comprises a liquid sensor for detecting the liquid pressure of the liquid and/or the level of the liquid.

In some embodiments of the swab leakage detection device, the connection cover comprises a support portion and a peripheral portion, the peripheral portion surrounds the bottom periphery of the swab body, and the support portion is connected to the peripheral portion and is used for supporting the liquid accumulation member and the detection element.

In some embodiments of the swab leakage detection device, the support portion includes a horizontal support section and a vertical support section connected to the horizontal support section, a first support position is formed among the peripheral portion, the horizontal support section and the vertical support section, a step surface is formed on the vertical support section, a second support position is formed on the step surface, the detection element is disposed at the first support position, the liquid accumulation element is disposed at the second support position, and the cover body via hole is formed on the vertical support section.

In some embodiments of the swab leakage detection device, the liquid accumulation part and the swab body are tightly attached, and/or the liquid accumulation part and the detection element are tightly attached, and/or the detection element and the connection cover are tightly attached.

In some embodiments of the swab leakage detection device, the swab leakage detection device further comprises a liquid accumulation seat disposed between the liquid accumulation element and the detection element, the liquid accumulation seat having a liquid accumulation cavity for accumulating liquid.

In some embodiments of the swab leakage detection device, the liquid accumulation seat has a liquid guiding surface, the liquid guiding surface is located below the liquid accumulation part, and the liquid guiding surface is used for guiding liquid flowing out of the liquid accumulation part into the liquid accumulation cavity.

In some embodiments of the swab leakage detection device, the liquid accumulation seat has a liquid accumulation seat through hole correspondingly communicated with the cover body through hole and the needle washing groove.

According to a second aspect, an embodiment provides a detection method of a swab leakage detection device, comprising:

determining a leakage threshold value;

when the leakage liquid amount is smaller than the leakage liquid threshold value, the liquid accumulation part absorbs the leakage liquid;

and when the liquid leakage amount is larger than the liquid leakage threshold value, triggering the detection element to send out a signal.

According to a third aspect, an embodiment provides a sample analyzer, comprising a sampling needle and a swab body, wherein the sampling needle is capable of moving along a needle washing groove of the swab body, and further comprising a swab leakage detection device according to the first aspect of the invention, wherein the swab leakage detection device is connected to the bottom of the swab body.

The embodiment of the invention has the following beneficial effects:

according to the swab leakage detection device, the detection method and the sample analyzer in the above embodiments, since the connection cover body has the cover body through hole correspondingly communicated with the needle washing groove of the swab body, the arrangement of the connection cover body does not hinder the normal use of the swab body, and meanwhile, since the liquid accumulating piece and the detection element are arranged in the containing cavity, when leakage occurs, the liquid flows into the liquid accumulating piece along the inner wall of the needle washing groove, and the liquid accumulating piece can accumulate a predetermined amount of liquid, when the leakage phenomenon is only sporadic small amount of leakage, the liquid accumulating piece can completely absorb the leaked liquid, at this time, the swab body does not need to be replaced, the service life of the swab body is effectively prolonged, the cost is saved, when the leakage phenomenon is continuous large amount of leakage, the liquid can break through the predetermined amount of the liquid accumulating piece, so that the detection element detects the leakage, and then the detection element sends a signal, the user identification of being convenient for to in time make and deal with, make the user can control the change opportunity of swab body accurately, be unlikely to too early change the swab body and cause the waste, also be so that too late change the swab body and cause bad consequence.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 drawings without creative efforts.

Wherein:

fig. 1 is a schematic structural diagram illustrating a swab leakage detection apparatus according to an embodiment of the present invention;

FIG. 2 illustrates a cross-sectional view of a swab leakage detection apparatus provided in accordance with an embodiment of the present invention;

FIG. 3 illustrates a cross-sectional view of another swab leakage detection apparatus provided in accordance with an embodiment of the present invention;

fig. 4 shows a flow chart of a detection method of the swab leakage detection device according to an embodiment of the present invention.

Description of the main element symbols:

100-connecting a cover body; 200-liquid accumulation; 300-a detection element; 400-liquid accumulation seat; 101-a housing chamber; 102-a cover via; 110-a support; 120-a peripheral portion; 401 — upper surface; 402-lower surface; 403-liquid accumulation seat via hole; 410-a hydropathy chamber; 420-liquid guiding surface; 430-mounting steps; 111-a horizontal support section; 112-vertical support section; 1000-swab body; 2000-sampling needle; 1100-needle washing groove; 1200-a first opening; 1300-a second opening; 1400-liquid inlet; 1500-a liquid outlet; a-a first support position; b-a second support position; c-a third support position.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" 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. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The embodiment of the invention provides a sample analyzer which can realize detection of blood samples and/or other samples.

The sample analyzer in the embodiment of the invention is provided with the sampling mechanism, the sampling mechanism comprises a sampling needle, the sampling needle is matched with a swab body, and the sampling needle can move along a needle washing groove of the swab body, so that the sampling needle is cleaned. During sampling, the sampling needle can move back and forth in the analyzer, a sample shelf to be detected is arranged on the sample analyzer, an incubation position, a detection position and the like are respectively stored with an incubation sample and a sample to be detected, the samples are detected in an uncapped state, and in the moving process of the sampling needle, especially when leakage occurs in a swab body, the leakage is easy to mix with the samples, so that pollution is easily caused, and the detection result is influenced.

Based on this, the embodiment of the present invention further provides a swab leakage detection device (hereinafter referred to as "detection device"), which can be used in combination with the swab body to clean the sampling needle, and can also monitor the use condition of the swab body in real time, so that a user can find the leakage in time.

Referring to fig. 1-2, the detecting device includes a connectingcover 100, a liquid accumulatingmember 200, and a detectingelement 300.

The connectingcover 100 is connected to the bottom of theswab body 1000 and encloses with theswab body 1000 to form areceiving cavity 101, and the connectingcover 100 has a cover throughhole 102 corresponding to theneedle washing slot 1100 of theswab body 1000.

Here, theswab body 1000 has aneedle washing groove 1100 therein, theneedle washing groove 1100 penetrates theswab body 1000, and when thesampling needle 2000 is cleaned, thesampling needle 2000 moves up and down (in the direction shown in fig. 2) in theneedle washing groove 1100 and can pass through theneedle washing groove 1100, and at this time, the cover body viahole 102 is designed to communicate with theneedle washing groove 1100, so that thesampling needle 2000 can also pass through the cover body viahole 102, thereby not affecting the normal use of theswab body 1000.

Theliquid accumulation member 200 is accommodated in theaccommodating cavity 101 and located below theneedle washing groove 1100, at least a part of theliquid accumulation member 200 covers the inner wall of theneedle washing groove 1100, and theliquid accumulation member 200 can accumulate a predetermined amount of liquid.

Theliquid accumulation member 200 is designed such that at least a portion thereof covers the inner wall of theneedle washing chamber 1100, which is set based on the flow path of the liquid during the liquid leakage phenomenon, after theswab body 1000 is used for a period of time, the liquid (cleaning liquid) inside theswab body 1000 flows down along the inner wall of theneedle washing chamber 1100, and theliquid accumulation member 200 is disposed below theneedle washing chamber 1100, and at least a portion thereof covers the inner wall of theneedle washing chamber 1100, thereby ensuring that the liquid leakage smoothly enters theliquid accumulation member 200.

Specifically, theneedle washing groove 1100 forms an opening at each of the upper and lower ends of theswab body 1000, wherein the first opening 1200 (in the direction shown in fig. 2) at the upper end has a smaller diameter and forms a closer fit with thesampling needle 2000, and the second opening 1300 at the lower end has a larger diameter and forms a looser fit with thesampling needle 2000. In addition, aliquid inlet 1400 and aliquid outlet 1500 which are communicated with theneedle washing groove 1100 are further formed in theswab body 1000, theliquid inlet 1400 is used for guiding cleaning liquid into theneedle washing groove 1100, theliquid outlet 1500 is used for guiding the cleaning liquid out of theneedle washing groove 1100, theliquid inlet 1400 is small in diameter and located at a lower position, theliquid outlet 1500 is large in diameter and located at a higher position, in the process of guiding the cleaning liquid into theneedle washing groove 1100, the cleaning liquid enters from theliquid inlet 1400 and flows out of theliquid outlet 1500, liquid flow with a certain flow velocity is formed in theneedle washing groove 1100, and the liquid flow then cleans thesampling needle 2000. In order to maintain the stability of the liquid flow, it is necessary to introduce an air flow from the second opening 1300, the air flow can form a certain suction force to the liquid flow, so as to prevent the liquid flow from leaking from the second opening 1300, and as long-time use is performed, the original close fit between thesampling needle 2000 and thefirst opening 1200 is changed into loose fit, so that one more pressure relief opening is formed in the air flow, the suction force formed by the air flow is reduced, and thus the cleaning liquid can leak from the second opening 1300, thereby causing liquid leakage. In the above process, the suction force is gradually reduced, and the amount of the leakage liquid is not too much, so that the leakage liquid adheres to the inner wall of the needle washingtub 1100 and flows downward.

Thedetection element 300 is accommodated in theaccommodating cavity 101 and located below theliquid accumulation member 200, and when the amount of liquid accumulated in theliquid accumulation member 200 exceeds a predetermined amount, thedetection element 300 is triggered to send a signal.

In the embodiment of the present invention, since the connecting cover 100 has the cover through hole 102 corresponding to the needle washing groove 1100 of the swab body 1000, the arrangement of the connecting cover 100 does not hinder the normal use of the swab body 1000, and since the liquid accumulating part 200 and the detecting element 300 are arranged in the receiving cavity 101, when a liquid leakage occurs, the liquid flows into the liquid accumulating part 200 along the inner wall of the needle washing groove 1100, and the liquid accumulating part 200 can accumulate a predetermined amount of liquid, when the liquid leakage is only a small amount of liquid leakage sporadically, the liquid accumulating part 200 can absorb all the leaked liquid, at this time, the swab body 1000 does not need to be replaced, the service life of the swab body 1000 is effectively prolonged, the cost is saved, when the liquid leakage is a large amount of liquid leakage continuously, the liquid can break through the predetermined amount of the liquid accumulating part 200, and thus the detecting element 300 detects the leaked liquid, and the detecting element 300 sends a signal, which is convenient for the user to identify, and timely handling is carried out, so that a user can accurately control the replacement time of the swab body 1000, waste caused by early replacement of the swab body 1000 is avoided, and adverse consequences caused by late replacement of the swab body 1000 are avoided.

Further, the "not to replace theswab body 1000 too early" mainly aims at two situations, one is that theswab body 1000 itself has no problem at all and has no leakage phenomenon; in another aspect, theswab body 1000 is damaged to some extent, but has a very small amount of leakage. Under the two conditions, theliquid accumulation part 200 and thedetection element 300 are arranged, so that thedetection element 300 cannot be triggered, and the leaked liquid can be completely absorbed by theliquid accumulation part 200, thereby ensuring the normal use of theswab body 1000 under the condition of not replacing theswab body 1000, and avoiding the serious loss caused by the fact that all unfinished tests are wasted due to the interruption of the test. The "swab body 1000 is not replaced too late" means that theswab body 1000 has been replaced according to actual situations or has to be replaced, and the leakage phenomenon is significant, and due to the combined action of theliquid loading element 200 and thedetection element 300, at the moment when thedetection element 300 sends a signal, a user can further determine whether theswab body 1000 needs to be replaced, for example, the user can judge whether the test needs to be interrupted in time by observing the actual working conditions of theswab body 1000, or the test that has completed the sample loading and reaction can be continuously executed by only terminating the sample loading and cleaning actions of theswab body 1000, so as to avoid the situation that all tests are wasted, and at any time before the action of replacing theswab body 1000 is executed, the situation that the leakage is not generated (the leakage is absorbed by the liquid loading element 200) can be avoided, so that the tested items need to be retested due to the fear of the contamination of theswab body 1000, thereby increasing the amount of repetitive work.

In some embodiments, theliquid accumulation member 200 is made of an absorbent material that can absorb a certain amount of liquid.

In some specific embodiments, the adsorbent material may be selected from at least one of foam, chrysotile, and asbestos fibers.

In some embodiments, thesensing element 300 includes a circuit board, the circuit on which is in an on state, and when fluid flows into the sensing element, the fluid shorts the circuit, thereby signaling.

Thedetection element 300 is here designed as a circuit board which can be connected to the control system of the medical instrument and which enables a quick feedback of leakage.

In other embodiments, thesensing element 300 includes a liquid sensor for sensing the pressure of the liquid and/or the level of the liquid.

The liquid sensor may be a hydraulic sensor or a liquid level sensor, and when the hydraulic sensor and/or the liquid level sensor are used, the connectingcover body 100 needs to be designed correspondingly, for example, the connectingcover body 100 may have a cavity for storing liquid, and when the liquid in the cavity is accumulated in a certain amount, the hydraulic sensor and/or the liquid level sensor may send a signal to the control system, so as to feed back the liquid leakage phenomenon.

In other embodiments, thesensing element 300 may also be implemented as a wiper-activated sensor that includes spaced apart annular circuits that are capable of signaling when liquid is introduced thereto.

In one embodiment, referring to fig. 2, theconnection cover 100 includes asupport portion 110 and aperipheral portion 120, theperipheral portion 120 surrounds the bottom periphery of theswab body 1000, and thesupport portion 110 is connected to theperipheral portion 120 for supporting theliquid accumulation member 200 and thedetection element 300.

Theattachment cover 100 may be attached to theswab body 1000 by fasteners such as screws to increase the reliability of the attachment. Thesupport portion 110 is disposed opposite to the bottom of theswab body 1000, so that the receivingcavity 101 is formed among theperipheral portion 120, thesupport portion 110, and theswab body 1000.

It is understood that thesupport portion 110 may exist independently of theperipheral portion 120, in which case theperipheral portion 120 and thesupport portion 110 are two components, and theperipheral portion 120 may be mounted on theswab body 1000 before thesupport portion 110 is mounted on theperipheral portion 120. Of course, the connectingcover 100 may also be designed as a one-piece structure, for example, by injection molding, in which case the installation of the connectingcover 100 may be simplified.

In a specific embodiment, referring to fig. 2, the supportingportion 110 includes a horizontal supportingsection 111 and a vertical supportingsection 112 connected to the horizontal supportingsection 111, a first supporting position a is formed among theperipheral portion 120, the horizontal supportingsection 111 and the vertical supportingsection 112, a step surface is formed on the vertical supportingsection 112, a second supporting position B is formed on the step surface, the detectingelement 300 is disposed at the first supporting position a, theliquid accumulating member 200 is disposed at the second supporting position B, and the cover body throughhole 102 is formed on the vertical supportingsection 112.

Thesupport 110 is ahorizontal support section 111 and avertical support section 112, so that thesupport 110 can simultaneously achieve two functions, the first aspect is that it can form a first support position a for placing the detectingelement 300, and in this case, in combination with the above, when the detectingelement 300 adopts a liquid sensor, the first support position a is actually a cavity structure and can store a certain amount of liquid; the second aspect is that the supportingportion 110 is formed by forming a second supporting position B on the vertical supportingsection 112, and the second supporting position B can be spaced from the first supporting position a by a certain distance, so that the detectingelement 300 and theliquid accumulating part 200 can be spaced apart.

Of course, in some more specific embodiments, referring to fig. 2, the detectingelement 300 and theliquid accumulating part 200 can be tightly attached to each other, so that the detecting device can be more compact in structure.

It should be understood that the term "closely attached" is distinguished from the aforementioned spaced arrangement, and means that the detectingelement 300 and theliquid accumulating member 200 are attached to each other, and the degree of attachment can be designed according to actual conditions.

In addition, by reasonably planning the distance from the second supporting position B to the bottom of theswab body 1000 and the thickness (the size along the vertical direction in fig. 2) of theliquid accumulation part 200, theliquid accumulation part 200 and theswab body 1000 can be tightly attached, so that the structural compactness of the detection device is further improved.

In another embodiment, referring to fig. 3, the swab leakage detection device further includes aliquid accumulation seat 400, theliquid accumulation seat 400 is disposed between theliquid accumulation device 200 and thedetection element 300, and theliquid accumulation seat 400 has aliquid accumulation cavity 410 for accumulating liquid.

Here through setting uphydrops seat 400, can strengthen detection device's hydrops ability to a certain extent, not only can store up liquid byhydrops piece 200 this moment, and thishydrops seat 400 also can store up liquid, can further prolong the life ofswab body 1000 from this.

In one embodiment, referring to fig. 3, theliquid accumulation base 400 has aliquid guiding surface 420, theliquid guiding surface 420 is located below theliquid accumulation member 200, and theliquid guiding surface 420 is used for guiding the liquid flowing out from theliquid accumulation member 200 into theliquid accumulation cavity 410.

Specifically, theliquid collection seat 400 has anupper surface 401 facing theswab body 1000 and alower surface 402 facing away from theswab body 1000, and theliquid guide surface 420 is recessed from theupper surface 401 at a position facing theliquid collection member 200, so that the liquid in theliquid collection member 200 can fall onto theliquid guide surface 420.

It should be noted that theliquid guiding surface 420 should cover as much area of theliquid accumulating member 200 as possible, or at least theliquid guiding surface 420 should cover the middle area of theliquid accumulating member 200, so that the liquid in theliquid accumulating member 200 can completely fall onto theliquid guiding surface 420.

In a more specific embodiment, thedrainage surface 420 is preferably designed as a slope that slopes freely downward toward thedrip chamber 410 to allow liquid to enter thedrip chamber 410 more smoothly. Of course, thedrainage surface 420 may have other configurations, such as aflat surface 420 in the example shown in FIG. 2.

In a specific embodiment, theliquid loading base 400 further forms a step surface above theliquid guide surface 420, and the step surface forms a third supporting position C, which serves as a supporting surface for theliquid loading member 200, and theliquid loading member 200 can be supported on the third supporting position C.

It can be seen that, in a specific embodiment, the liquid accumulatingbase 400 has anupper surface 401 and alower surface 402, a third supporting location C, aliquid guiding surface 420 and a liquid accumulatingcavity 410 are formed on theupper surface 401 from top to bottom, theliquid accumulating piece 200 is supported on the third supporting location C, a gap is formed between the liquid accumulatingpiece 200 and theliquid guiding surface 420, the liquid in the liquid accumulatingpiece 200 can drop onto theliquid guiding surface 420 and then flow into the liquid accumulatingcavity 410 along theliquid guiding surface 420, when the liquid exceeds the capacity of the liquid accumulatingcavity 410, the liquid can overflow the liquid accumulatingcavity 410 and enter the detectingelement 300, so as to trigger the detectingelement 300 to send a signal.

In order to allow the overflowing liquid to flow into the detectingelement 300, a gap may be left between the connectingcover body 100 and theliquid reservoir 400, and at least a portion of the detectingelement 300 may be designed to be exposed from the gap, whereby the overflowing liquid may flow into the detectingelement 300 through the gap.

In order to leave the above-described gap between thecoupling cap body 100 and theliquid accumulation seat 400, the following design may be made for the structure of thecoupling cap body 100 and theliquid accumulation seat 400 and the assembly therebetween.

Referring to fig. 3, theconnection cover 100 includes aperipheral portion 120 and a supportingportion 110, the cross section of theconnection cover 100 is substantially "L" shaped, and thedetection element 300 is disposed in a space surrounded by theperipheral portion 120 and the supportingportion 110. Anattachment step 430 is formed at the right end (in the direction shown in fig. 3) of thelower surface 402 of theliquid reservoir 400, theliquid reservoir 400 can be set to the right end of thesupport portion 110 by theattachment step 430, and the dimension of theliquid reservoir 400 in the left-right direction is designed to be smaller than the dimension of thesupport portion 110 in the left-right direction, and at this time, the gap is formed between the left end of theliquid reservoir 400 and theperipheral portion 120.

In one embodiment, theliquid accumulation seat 400 has liquid accumulation seat throughholes 403 correspondingly communicated with the cover body throughhole 102 and theneedle washing groove 1100, so as to avoid affecting the normal use of theswab body 1000.

On the basis of the aforementioned swab leakage detection device, referring to fig. 4, an embodiment of the present invention further provides a detection method, including:

s100, determining a liquid leakage threshold value;

the leakage threshold needs to be determined according to the liquid accumulation capacity of the liquid accumulation device, for example, in the embodiment where the swab leakage detection device only includes the connection cover, the liquid accumulation device and the detection element, the leakage threshold is relatively small; in an embodiment where the swab leakage detection apparatus further comprises a liquid loading seat, the leakage threshold is relatively large. The former is explained here as an example.

S200, when the leakage amount is smaller than the leakage threshold value, the liquid accumulation part absorbs the leakage;

in this step, the swab leakage detection device is in the process of self-treatment, i.e. leakage occurs, but the leakage can be absorbed by the liquid accumulation element.

And S300, triggering the detection element to send out a signal when the liquid leakage amount is larger than the liquid leakage threshold value.

In the step, the leakage liquid amount is large, so that a user can be guided to take the next step of measures and timely respond to the leakage liquid condition, and the detection element can send a signal to remind the user.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. Swab weeping detection device, its characterized in that includes:

the connecting cover body is connected to the bottom of the swab body and forms an accommodating cavity with the swab body in an enclosing manner, and the connecting cover body is provided with a cover body through hole correspondingly communicated with the needle washing groove of the swab body;

2. The swab leakage detection device of claim 1 wherein said fluid accumulation member is made of absorbent material.

3. The swab leakage detection device of claim 2 wherein said absorbent material comprises at least one of foam, chrysotile, and asbestos fibers.

4. The swab leak detection device of claim 1, wherein the detection element comprises a circuit board, wherein the circuit on the circuit board is in an on state, and wherein when fluid flows into the detection element, the fluid shorts the circuit, thereby emitting a signal.

5. The swab leakage detection device of claim 1 wherein said detection element comprises a liquid sensor for detecting the liquid pressure and/or level of the liquid.

6. The swab leakage detection device of any of claims 1-5 wherein the attachment cover comprises a support portion and a peripheral portion, the peripheral portion surrounding the bottom periphery of the swab body, the support portion being attached to the peripheral portion for supporting the fluid accumulation member and the detection element.

7. The swab leakage detection device of claim 6 wherein said support portion comprises a horizontal support portion and a vertical support portion connected to said horizontal support portion, wherein a first support location is defined between said peripheral portion, said horizontal support portion and said vertical support portion, wherein a step surface is defined on said vertical support portion, wherein a second support location is defined on said step surface, wherein said detection element is disposed at said first support location, said effusion element is disposed at said second support location, and said cover via hole is formed on said vertical support portion.

8. The swab leakage detection device of claim 7 wherein said fluid accumulation member is in intimate contact with said swab body, and/or said fluid accumulation member is in intimate contact with said detection element, and/or said detection element is in intimate contact with said attachment cap.

9. The swab leak detection device of any one of claims 1-5, further comprising a fluid reservoir disposed between the fluid accumulation member and the detection element, the fluid reservoir having a fluid accumulation chamber for accumulating fluid.

10. The swab leakage detection device of claim 9 wherein said fluid reservoir has a fluid conducting surface below said fluid accumulation member, said fluid conducting surface for conducting fluid exiting said fluid accumulation member into said fluid accumulation chamber.

11. The swab leakage detection device of claim 10 wherein the fluid accumulation seat has a fluid accumulation seat through hole in communication with the cover through hole and the needle washing slot.

12. The method of detecting a swab leakage detection device of claims 1-11, wherein said method comprises:

determining a leakage threshold value;

13. A sample analyzer comprising a sampling needle and a swab body, wherein the sampling needle is movable along a needle washing groove of the swab body, and further comprising a swab leakage detection device according to any one of claims 1 to 11, wherein the swab leakage detection device is connected to the bottom of the swab body.