CN113960027B - Pen-shaped device capable of detecting immediately - Google Patents
Pen-shaped device capable of detecting immediately Download PDFInfo
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- CN113960027B CN113960027B CN202111227427.1A CN202111227427A CN113960027B CN 113960027 B CN113960027 B CN 113960027B CN 202111227427 A CN202111227427 A CN 202111227427A CN 113960027 B CN113960027 B CN 113960027B
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- 238000005070 sampling Methods 0.000 claims abstract description 102
- 238000004321 preservation Methods 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000012360 testing method Methods 0.000 claims abstract description 32
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 239000003761 preservation solution Substances 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 239000003256 environmental substance Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000036316 preload Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 13
- 239000012528 membrane Substances 0.000 description 6
- 238000000338 in vitro Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 208000017667 Chronic Disease Diseases 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a pen-shaped device for instant detection, which relates to the technical field of instant detection and comprises an inner core, a pen holder, a sampling rod, a separation sleeve and a pen cap. Has the following beneficial effects: the test strips are attached to the side face of the sampling rod, the more the test strips can be placed on the side face of the sampling rod, more items can be detected, and the detection efficiency of the device is improved; a preservation liquid storage part is arranged in the device to pre-load preservation liquid, a hollow inner core is arranged outside the sampling rod to accommodate the sampling rod and guide the mixed liquid of the preservation liquid and the sample during detection, a film matched with a sampling head is arranged at the opening of the preservation liquid storage part, the sampling head punctures the film and generates pressure to enable the preservation liquid to flow into the inner core, so that the test strip develops color, the detection process is completed in the device, and the condition that the sample pollutes the environment and environmental substances to interfere the sample is avoided; when the separation sleeve is used for connecting the pen holder and the pen cap, the film can be prevented from being punctured, an additional storage device is not needed, and the storage cost of the sample is reduced.
Description
Technical Field
The invention relates to the technical field of instant detection, in particular to an instant detection pen-shaped device.
Background
In vitro diagnosis is a subdivision field in the medical instrument industry, and in vitro diagnosis refers to products and services for obtaining clinical diagnosis information, diseases or body functions and other data by detecting human specimens through an experimental method outside a human body.
Instant detection is a sub-industry of in vitro diagnostics. The application range of the instant detection technology is very wide, such as public health fields of clinical examination, chronic disease monitoring, infectious disease detection, inspection and quarantine, emergency response, disaster medical rescue, food safety, drug inspection and the like. The application place of the instant detection can be in wards, clinics, clinical departments, emergency rooms, operating rooms and guardianship rooms of large hospitals; the method can also be used in disease control centers, community hospitals and private clinics; an environmental protection site, a disaster rescue site, a forensic site and a biological anti-terrorism site; further, customs quarantine, rapid screening of forbidden drugs, food safety detection and the like. The current mainstream instant detection device in the market is generally small in size, convenient to carry, simple in sampling operation mode, rapid in detection process and easy to interpret results, but the mainstream instant detection device generally adopts an open split design of a sampling and detection assembly, a detector needs to sample firstly and then adds a sample into the detection device in an open environment, the situation that the sample pollutes the environment and environmental substances and interferes with the sample cannot be avoided, and the sample preservation needs a preservation device, so that the sample preservation cost is improved, and the instant detection device is needed to solve the problem.
Disclosure of Invention
1. Technical problem to be solved by the invention
Aiming at the technical problems that the existing instant detection device can cause sample pollution to the environment and the environmental substances to interfere with the sample and the sample preservation cost is high, the invention provides an instant detection pen-shaped device, the inside of the pen-shaped device is provided with a sampling rod, the side surface of the sampling rod is provided with a test strip for detecting the sample, a preservation liquid storage part is arranged in the device to be preloaded with preservation liquid, a hollow inner core is arranged outside the sampling rod to be used for containing the sampling rod and guiding the mixed liquid of the preservation liquid and the sample during detection, a sampling head is arranged on the sampling rod, a film matched with the sampling head is arranged at the opening of the preservation liquid storage part, and the sampling head punctures the film and generates pressure to enable the preservation liquid to flow into the inner core, so that the test strip develops color, and the detection process is completed inside the device; when the separation sleeve is used for connecting the pen holder and the pen cap, the thin film can be prevented from being punctured, and the sample can be temporarily stored.
2. Technical proposal
In order to solve the problems, the technical scheme provided by the invention is as follows:
the utility model provides a pen-shaped device of instantaneous detection, includes inner core, pen-holder, sampling pole, partition sleeve and pen cap, the inner core is hollow structure, be equipped with the sampling head that is used for the sampling on the sampling pole, the sampling pole with the inside cooperation of inner core, the sampling head is equipped with fibrous structure or porous structure, the sampling head be equipped with inner core complex sealing washer, the inside of sampling head is equipped with the fluid channel, the one end of pen-holder is connected with the stopper, the outside of inner core with the stopper is connected, the pen-holder with the pen cap passes through the partition sleeve is connected, be equipped with the preservation liquid storage portion that contains the preservation liquid in the pen cap, the opening part of preservation liquid storage portion is equipped with the film, the surface of sampling pole is equipped with the test strip, the opening of preservation liquid storage portion with the sampling head is relative.
Optionally, the pen cap is connected with the sampling rod, and the pen cap is connected with the inner core.
Optionally, a supporting frame for supporting the test strip is arranged in the pen holder, the supporting frame is cylindrical, a ring protrusion is arranged outside the supporting frame, the outer diameter of the ring protrusion is matched with the inner diameter of the pen holder, and the inner diameter of the supporting frame is matched with the outer diameter of the inner core.
Optionally, the pen cap comprises a first pen cap part and a second pen cap part which are connected, the first pen cap part is cylindrical, the preservation solution storage part is positioned on the second pen cap part, and a step and a ring protrusion matched with the first pen cap part are arranged at the edge of the second pen cap part.
Optionally, the outer diameter of the pen holder is smaller than the inner diameter of the first pen cap portion.
Alternatively, the separation sleeve is suspended opposite to the preservation solution storage part, and one end, connected with the pen cap, of the separation sleeve is an arc-shaped surface.
Optionally, one end of the inner core facing the preservation solution storage part is provided with a diameter-reducing structure.
Alternatively, the cross-sectional shape of the sampling rod is polygonal, and the test strip is attached to the side surface of the sampling rod.
Optionally, an opening of the preservation solution storage part is provided with an expanding structure.
Optionally, the pen holder and the inner core are made of transparent materials.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the sampling rod is arranged in the device, the test strip for detecting samples is attached to the side face of the sampling rod, the more the test strip can be placed on the side face of the sampling rod, more items can be detected, and the detection efficiency of the device is improved; the device is internally provided with a preservation liquid storage part for pre-filling preservation liquid, a hollow inner core is arranged outside the sampling rod for accommodating the sampling rod and guiding mixed liquid of the preservation liquid and a sample during detection, the sampling rod is provided with a sampling head, the opening of the preservation liquid storage part is provided with a film matched with the sampling head, the sampling head punctures the film and generates pressure to enable the preservation liquid to flow into the inner core, so that the test strip develops color, the detection process is completed inside the device, and the condition that the sample pollutes the environment and environmental substances interfere with the sample is avoided; when the separation sleeve is used for connecting the pen holder and the pen cap, the thin film can be prevented from being punctured, the sample is temporarily stored, an additional storage device is not needed, and the storage cost of the sample is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a pen-like device for real-time detection according to an embodiment of the present invention.
Fig. 2 is a partial enlarged view of a sampling head of a pen-like device for immediate detection according to an embodiment of the present invention.
1. A pen cap; 2. an inner core; 3. a plug; 4. a penholder; 5. a support frame; 6. a first cap portion; 7. a second cap portion; 8. a separation sleeve; 9. a sampling rod; 901. a sampling head; 90101. a seal ring; 10. a preservation liquid storage unit; 1001. a film.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings and examples.
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings. The first, second, etc. words are provided for convenience in describing the technical scheme of the present invention, and have no specific limitation, and are all generic terms, and do not constitute limitation to the technical scheme of the present invention. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. The technical schemes in the same embodiment and the technical schemes in different embodiments can be arranged and combined to form a new technical scheme without contradiction or conflict, which is within the scope of the invention.
Examples
Referring to fig. 1-2, a pen-shaped device for instant detection comprises an inner core 2, a pen holder 4, a sampling rod 9, a separation sleeve 8 and a pen cap, wherein the inner core 2 is of a hollow structure, a sampling head 901 for sampling is arranged on the sampling rod 9, the sampling rod 9 is matched with the inner core 2, the sampling head 901 is provided with a fiber structure or a porous structure, the sampling head 901 is provided with a sealing ring 90101 matched with the inner core 2, a fluid channel is arranged in the sampling head 901, one end of the pen holder 4 is connected with a plug 3, the outer side of the inner core 2 is connected with the plug 3, the pen holder 4 is connected with the pen cap through the separation sleeve 8, a preservation liquid storage part 10 containing preservation liquid is arranged in the pen cap, a film 1001 is arranged at an opening of the preservation liquid storage part 10, a test strip is arranged on the surface of the sampling rod 9, and the opening of the preservation liquid storage part 10 is opposite to the sampling head 901.
The hollow inner core 2 is used for accommodating the sampling rod 9 and guiding the mixed liquid of the preservation liquid and the sample during detection, and the surface of the sampling rod 9 is provided with a test strip for detecting the sample. The sampling head 901 is used for sampling, and a fiber structure or a porous structure facilitates the preservation liquid to enter the sampling head 901 and flow to the test strip adopting the rod through the fluid channel inside the sampling head 901. The plug 3 is used for fixing the inner core 2, and the plug 3 is connected with the inner core 2 through threads. The separation sleeve 8 is used for connecting and separating the pen holder 4 and the pen cap, the separation sleeve 8 needs to be taken down during detection, and the separation sleeve 8 has the function of avoiding the sampling head 901 from touching the preservation solution storage part 10 by mistake during preservation of a sample, thereby playing a role in protection. The preservation solution is a liquid which is necessary to be used in detection, the preservation solution is required to be mixed with a sample in the detection process, and then the mixture is contacted with the test strip for color development, so that the instant detection is realized. The film 1001 is used for packaging preservation liquid at ordinary times, and has a good sealing effect. The sealing ring 90101 is located between the sampling head 901 and the inner core 2, and is used for sealing a passage between the sampling head 901 and the inner core 2, the internal pressure of the preservation liquid storage part 10 is increased after the sampling head 901 penetrates into the film 1001, the internal pressure of the preservation liquid storage part 10 forces preservation liquid to flow into the sampling head 901, and the preservation liquid can only flow into the porous structure of the sampling head 901 because the passage between the sampling head 901 and the inner core 2 is sealed. The opening of the preservation solution storage part 10 is opposite to the sampling head 901, so that the sampling head 901 can be penetrated into the preservation solution storage part 10 by controlling the pen holder 4 to move along the length direction of the pen cap during detection. The end of the inner core 2 with the sampling head 901 is a plane, and the sampling head 901 is ensured to be in a sealing state as much as possible when the end is contacted with the film 1001, so that the conditions that the sample pollutes the environment and environmental substances interfere with the sample are avoided. The membrane 1001 needs to have a certain toughness, and after the sampling head 901 penetrates the membrane 1001, the membrane 1001 cannot be broken completely, and the membrane 1001 cannot be broken completely to increase the internal pressure of the preserving fluid reservoir 10, so that the preserving fluid lacks power to flow into the core 2.
The pen comprises a pen cap 1, wherein the pen cap 1 is connected with a sampling rod 9, and the pen cap 1 is connected with an inner core 2. The pen cap 1 is used for connecting the sampling rod 9 and the inner core 2, and fixing the sampling rod 9 at the central position of the inner core 2, so that a space is reserved between the sampling rod 9 and the inner core 2, and the space is used for accommodating a test strip and a channel for mixing liquid serving as a sample and a preservation liquid. At the same time, the pen cap 1 is convenient for a worker to take the sampling rod 9.
The pen holder 4 is internally provided with a supporting frame 5 for supporting the test strip, the supporting frame 5 is cylindrical, the outer part of the supporting frame 5 is provided with a ring bulge, the outer diameter of the ring bulge is matched with the inner diameter of the pen holder 4, and the inner diameter of the supporting frame 5 is matched with the outer diameter of the inner core 2. The annular protrusion of the supporting frame 5 is used for positioning the position of the supporting frame 5 and is contacted with the test strip, so that the structural stability of the test strip is ensured.
The pen cap comprises a first pen cap part 6 and a second pen cap part 7 which are connected, the first pen cap part 6 is cylindrical, the preservation solution storage part 10 is positioned on the second pen cap part 7, and steps and annular protrusions matched with the first pen cap part 6 are arranged on the edge of the second pen cap part 7. The pen cap is set to be a first pen cap part 6 and a second pen cap part 7 which are connected in interference fit, the first pen cap part 6 and the second pen cap part 7 are detachable, the first pen cap part 6 and the second pen cap part 7 are detached and separated, processing of the preservation solution storage part 10 and packaging of preservation solution are convenient, the second pen cap part 7 is equivalent to the bottom of the pen cap, and if the pen cap is designed in an integrated processing way, the internal processing is very inconvenient. The outer diameter of the pen holder 4 is smaller than the inner diameter of the first pen cap part 6. When in detection, the sampling head 901 needs to be penetrated into the preservation solution storage part 10 of the pen cap, the external movement is that the pen holder 4 is penetrated into the pen cap, the outer diameter of the pen holder 4 is smaller than the inner diameter of the first pen cap part 6 so as to avoid the situation that the pen holder 4 is blocked by the pen cap, and the penetration of the sampling head 901 fails.
The separation sleeve 8 is in suspended opposition to the preservation solution storage part 10, and one end of the separation sleeve 8 connected with the pen cap is an arc surface. The separation sleeve 8 is suspended opposite to the preservation solution storage part 10, so as to prevent the sampling head 901 from contacting the preservation solution storage part 10 by mistake during preservation of the sample, and play a role in protection, and the shape of the arc surface can also prevent the separation sleeve 8 from puncturing the film 1001 of the preservation solution storage part 10 when the separation sleeve 8 is irresistibly contacted with the preservation solution storage part 10 under the action of external force.
The end of the inner core 2 facing the preservation solution storage part 10 is provided with a diameter-reducing structure. The reduced diameter structure serves to reduce the contact area, increase the pressure at the moment when the core 2 contacts the membrane 1001, and make the core 2 more easily pierce the membrane 1001.
The cross-section of the sampling rod 9 is polygonal, and the test strip is attached to the side surface of the sampling rod 9. The more the test strips can be placed on the side face of the sampling rod 9, more items can be detected simultaneously, and the detection efficiency of the device is greatly improved. For example, the cross-sectional shape of the sampling rod 9 in this embodiment is square, so the sampling rod 9 has four sides, and four test strips can be placed thereon to perform four test items.
An opening of the preservation solution storage part 10 is provided with a diameter-enlarging structure. The diameter of the expanding structure is larger than the outer diameter of the inner core 2, so that the inner core 2 is prevented from being jammed when penetrating into the preservation fluid storing part 10.
The pen holder 4 and the inner core 2 are made of transparent materials. In this embodiment, the pen holder 4 and the inner core 2 are made of transparent acrylic material. The acrylic material has crystal-like transparency, light transmittance of more than 92%, soft light and clear vision; has excellent weather resistance, higher surface hardness and surface gloss and better high-temperature resistance; the high-strength plastic has good processability, and can be formed by hot forming or machining; the density is small; the broken glass cannot form sharp fragments like glass; has good stability and is resistant to corrosion by various chemicals. After the color of the test strip is developed, the color of the test strip can be directly observed through the pen holder 4 and the inner core 2, and the observation is convenient, direct and quick.
Working principle:
preserving a sample: after the sample is collected by the sampling rod 9, the sampling rod 9 is placed in the inner core 2, and the separation sleeve 8 and the pen cap are sleeved, so that the sample can be stored.
Detecting a sample: taking down the separation sleeve 8, moving the pen holder 4 into the pen cap, penetrating the sampling head 901 into the preserving fluid storage part 10, compressing the film 1001, increasing the pressure in the preserving fluid storage part 10, at the moment of penetrating the film 1001, enabling the preserving fluid to be in pressure contact with the sampling head 901, enabling the preserving fluid to flow through the filter plate through the fluid cavity of the inner core 2 and then be in contact with the test strip on the support frame, and judging whether the sample of the sampling head 901 is positive or negative according to the color development result of the test strip because the preserving fluid is mixed with the sample positioned on the sampling head 901 during the period. The staff can observe the liquid flowing process and the color change of the test strip outside through the transparent pen holder 4 and the inner core 2, so that the test strip is very convenient.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Claims (10)
1. The utility model provides a pen-shaped device of instant detection, its characterized in that, including inner core, pen-holder, sampling pole, partition sleeve and pen cap, the inner core is hollow structure, be equipped with the sampling head that is used for the sampling on the sampling pole, the sampling pole with the inside cooperation of inner core, the sampling head is equipped with fibrous structure or porous structure, the sampling head be equipped with inner core complex sealing washer, the inside of sampling head is equipped with the fluid cavity, the one end of pen-holder is connected with the stopper, the outside of inner core with the stopper is connected, the pen-holder with the pen cap passes through the partition sleeve is connected, be equipped with the preservation liquid storage part that contains preservation liquid in the pen cap, the opening part of preservation liquid storage part is equipped with the film, the film adopts ductile material to make, the surface of sampling pole is equipped with the test strip, the opening of preservation liquid storage part with the sampling head is relative.
2. The point-of-care pen device according to claim 1, comprising a pen cap connected to said sampling shaft, said pen cap connected to said inner core.
3. The pen-shaped device for instant detection according to claim 1, wherein a supporting frame for supporting the test strip is arranged in the pen holder, the supporting frame is cylindrical, a ring protrusion is arranged outside the supporting frame, the outer diameter of the ring protrusion is matched with the inner diameter of the pen holder, and the inner diameter of the supporting frame is matched with the outer diameter of the inner core.
4. The pen-like device for instant detection according to claim 1, wherein the pen cap comprises a first pen cap portion and a second pen cap portion connected, the first pen cap portion is cylindrical, the preservation solution storage portion is located on the second pen cap portion, and a step and a ring protrusion matched with the first pen cap portion are arranged on the edge of the second pen cap portion.
5. The point-of-care pen device according to claim 4, wherein the outer diameter of the barrel is smaller than the inner diameter of the first cap portion.
6. The pen-like device for on-line detection according to claim 1, wherein the separation sleeve is suspended opposite to the preservation solution storage part, and one end of the separation sleeve connected with the pen sleeve is an arc surface.
7. The pen-like device for on-line detection according to claim 1, wherein an end of the inner core facing the preservation fluid storing part is provided with a reduced diameter structure.
8. The point-of-care pen device according to claim 1, wherein the cross-sectional shape of the sampling rod is polygonal and the test strip is attached to the side of the sampling rod.
9. The pen-like device for instant detection according to claim 1, wherein an opening of the preservation solution storing part is provided with a diameter-enlarging structure.
10. A pen device for on-the-fly detection as claimed in any one of claims 1 to 9 wherein said barrel and said core are both made of transparent material.
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CN202111227427.1A CN113960027B (en) | 2021-10-21 | 2021-10-21 | Pen-shaped device capable of detecting immediately |
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CN202111227427.1A CN113960027B (en) | 2021-10-21 | 2021-10-21 | Pen-shaped device capable of detecting immediately |
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CN113960027B true CN113960027B (en) | 2024-03-19 |
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CN115629064A (en) * | 2022-11-30 | 2023-01-20 | 神州医疗科技股份有限公司 | Sampling and detection integrated device and control method thereof |
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