CN113960027A - Pen-shaped device capable of detecting immediately - Google Patents

Pen-shaped device capable of detecting immediately Download PDF

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Publication number
CN113960027A
CN113960027A CN202111227427.1A CN202111227427A CN113960027A CN 113960027 A CN113960027 A CN 113960027A CN 202111227427 A CN202111227427 A CN 202111227427A CN 113960027 A CN113960027 A CN 113960027A
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CN
China
Prior art keywords
pen
sampling
inner core
sleeve
sampling rod
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Granted
Application number
CN202111227427.1A
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Chinese (zh)
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CN113960027B (en
Inventor
伍传丽
张煊梓
高会会
张俊伟
翁本才
陈功祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaoxing Yingchuang Medical Technology Co ltd
Hangzhou Genesis Biodetection & Biocontrol Ltd
Original Assignee
Shaoxing Yingchuang Medical Technology Co ltd
Hangzhou Genesis Biodetection & Biocontrol Ltd
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Application filed by Shaoxing Yingchuang Medical Technology Co ltd, Hangzhou Genesis Biodetection & Biocontrol Ltd filed Critical Shaoxing Yingchuang Medical Technology Co ltd
Priority to CN202111227427.1A priority Critical patent/CN113960027B/en
Publication of CN113960027A publication Critical patent/CN113960027A/en
Application granted granted Critical
Publication of CN113960027B publication Critical patent/CN113960027B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77Systems 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
    • G01N21/78Systems 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state

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 paper strips are attached to the side faces of the sampling rods, and the more the test paper strips are placed on the side faces of the sampling rods, more items can be detected, and the detection efficiency of the device is improved; the device is internally provided with a preserving fluid storage part to pre-load preserving fluid, a hollow inner core is arranged outside the sampling rod to accommodate the sampling rod and guide the mixed fluid of the preserving fluid and the sample during detection, a thin film matched with the sampling head is arranged at an opening of the preserving fluid storage part, the sampling head punctures the thin film and generates pressure to enable the preserving fluid to flow into the inner core, so that the test strip develops color, the detection process is finished in the device, and the conditions that the sample pollutes the environment and environmental substances interfere the sample are avoided; when the separating sleeve is used for connecting the pen holder and the pen sleeve, the thin film can be prevented from being punctured, an additional storage device is not needed, and the storage cost of the sample is reduced.

Description

Pen-shaped device capable of detecting immediately
Technical Field
The invention relates to the technical field of instant detection, in particular to a pen-shaped device for instant detection.
Background
In vitro diagnosis is a subdivided field in the medical instrument industry, and refers to products and services for detecting human body specimens by an experimental method to obtain clinical diagnosis information, diseases or body functions and other data outside the human body.
Point-of-care testing is a sub-industry of in vitro diagnostics. The instant detection technology has wide application range, such as the 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 places of the instant detection can be used in wards, outpatients, clinical laboratories, emergency rooms, operating rooms and guardianship rooms of large hospitals; but also in disease control centers, community hospitals and private clinics; environmental protection site, disaster rescue site, forensic site, biological anti-terrorism site; and customs quarantine, rapid screening of prohibited drugs, food safety detection and the like. The general volume of mainstream instant detection device is all smaller in the existing market, portable, sampling operation is simple, the testing process is quick, the result is easily deciphered, but mainstream instant detection device generally adopts sample and the open components of a whole that can function independently design of determine module, the person who detects will take a sample earlier, then add detection device with the sample in the open environment, the condition that sample polluted environment and environmental substance disturbed the sample can't be avoided appearing, and the save of sample also needs save set, the cost that the sample was preserved has been improved, therefore, an 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, environmental substances interfere samples and the cost for sample storage is high, the invention provides a pen-shaped device for instant detection, wherein a sampling rod is arranged in the pen-shaped device, a test strip for detecting the samples is attached to the side surface of the sampling rod, a storage solution storage part is arranged in the device to be pre-filled with a storage solution, a hollow inner core is arranged outside the sampling rod to accommodate the sampling rod and guide the mixed solution of the storage solution and the samples during detection, a sampling head is arranged on the sampling rod, a thin film matched with the sampling head is arranged at an opening of the storage solution storage part, the sampling head punctures the thin film and generates pressure to enable the storage solution to flow into the inner core, so that the test strip is developed, and the detection process is finished in the device; when the separation sleeve is used for connecting the penholder and the pen sleeve, the thin film can be prevented from being punctured, and the sample can be temporarily stored.
2. Technical scheme
In order to solve the problems, the technical scheme provided by the invention is as follows:
the utility model provides an instant pen form device that detects, includes inner core, pen-holder, sampling rod, partition sleeve and pen socket, the inner core is hollow structure, be equipped with the sampling head that is used for the sampling on the sampling rod, the sampling rod 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 fluid chamber way, 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 socket passes through the partition sleeve is connected, be equipped with the liquid storage portion that preserves that contains preserving fluid in the pen socket, the opening part of preserving fluid storage portion is equipped with the film, the surface of sampling rod is equipped with the test paper strip, the opening of preserving fluid storage portion with the sampling head is relative.
Optionally, a pen cap is included, the pen cap is connected with the sampling rod, and the pen cap is connected with the inner core.
Optionally, a support frame for supporting the test strip is arranged in the pen holder, the support frame is cylindrical, a ring protrusion is arranged outside the support frame, the outer diameter of the ring protrusion is matched with the inner diameter of the pen holder, and the inner diameter of the support frame is matched with the outer diameter of the inner core.
Optionally, the pen socket is including first pen socket portion and the second pen socket portion of connecting, first pen socket portion is the tube-shape, it is located to preserve liquid storage site on the second pen socket portion, the edge of second pen socket portion be equipped with first pen socket portion complex step and ring are protruding.
Optionally, the outer diameter of the barrel is smaller than the inner diameter of the first sleeve portion.
Optionally, the separating sleeve is opposite to the preserving fluid storage part in a hanging manner, and one end of the separating sleeve, which is connected with the pen cap, is an arc-shaped surface.
Optionally, one end of the inner core facing the preservation solution storage part is provided with a reducing structure.
Optionally, 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 fluid storage part is provided with a diameter expanding structure.
Optionally, the penholder and the inner core are both 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 strips for detecting samples are attached to the side surface of the sampling rod, and the more the test strips are placed on the side surface of the sampling rod, the more items can be detected, and the detection efficiency of the device is improved; the device is internally provided with a preserving fluid storage part to pre-load preserving fluid, a hollow inner core is arranged outside the sampling rod to accommodate the sampling rod and guide mixed fluid of the preserving fluid and a sample during detection, a sampling head is arranged on the sampling rod, a thin film matched with the sampling head is arranged at an opening of the preserving fluid storage part, the sampling head punctures the thin film and generates pressure to enable the preserving fluid to flow into the inner core, so that the test strip develops color, the detection process is completed in the device, and the conditions that the sample pollutes the environment and environmental substances interfere the sample are avoided; when the separating sleeve is used for connecting the penholder and the pen sleeve, 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-shaped device for real-time detection according to an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a sampling head of a pen-shaped device for real-time testing according to an embodiment of the present invention.
1. A pen cap; 2. an inner core; 3. a plug; 4. a pen holder; 5. a support frame; 6. a first pen cover portion; 7. a second pen cap portion; 8. a separation sleeve; 9. a sampling rod; 901. a sampling head; 90101. a seal ring; 10. a storage solution storage part; 1001. a film.
Detailed Description
For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The terms first, second, and the like in the present invention are provided for convenience of describing the technical solution of the present invention, and have no specific limiting effect, but are all generic terms, and do not limit the technical solution of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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 expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, and the technical solutions are within the scope of the present invention.
Examples
With reference to the accompanying drawings 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 sleeve, 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 cavity channel is arranged inside 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 sleeve through the separation sleeve 8, a preservation solution storage part 10 containing preservation solution is arranged in the pen sleeve, a film 1001 is arranged at an opening of the preservation solution storage part 10, and a test strip is arranged on the surface of the sampling rod 9, the opening of the preservative solution storage section 10 faces the sampling head 901.
The inner core 2 with the hollow structure is used for accommodating the sampling rod 9 and guiding mixed liquid of preservation liquid and a sample when in detection, and a test strip for detecting the sample is arranged on the surface of the sampling rod 9. The sampling head 901 is used for sampling, and the fibrous structure or the porous structure facilitates the preservation solution 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 in threaded connection with the inner core 2. The separating sleeve 8 is used for connecting and separating the pen holder 4 and the pen cap, the separating sleeve 8 needs to be taken down when detecting, the separating sleeve 8 is used for avoiding that the sampling head 901 mistakenly touches the preserving fluid storage part 10 when preserving samples, and the protecting effect is achieved. The preservation solution is a liquid which must be used during detection, and the preservation solution and a sample need to be mixed in the detection process and then are contacted with a 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 used for sealing a passage between the sampling head 901 and the inner core 2, after the sampling head 901 penetrates into the film 1001, the internal pressure of the preservation liquid storage part 10 is increased, the internal pressure of the preservation liquid storage part 10 forces the preservation liquid to flow into the sampling head 901, and the passage between the sampling head 901 and the inner core 2 is sealed, so that the preservation liquid can only flow into the porous structure of the sampling head 901. The opening of the storage liquid storage part 10 is opposite to the sampling head 901, so that the sampling head 901 can be inserted into the storage liquid storage part 10 by controlling the pen holder 4 to move along the length direction of the pen cap when detection is convenient. The end of the inner core 2 having the sampling head 901 is a plane, and when contacting with the film 1001, the sampling head 901 is ensured to be in a sealed state as much as possible, so that the conditions that the sample pollutes the environment and the environmental substances interfere with the sample are avoided. The film 1001 needs to have a certain toughness, and the film 1001 cannot be completely broken after the sampling head 901 penetrates the film 1001, and the internal pressure of the storage solution reservoir 10 cannot be increased by the complete breakage of the film 1001, so that the storage solution lacks power to flow into the core 2.
Including cap 1, cap 1 with sampling rod 9 connects, cap 1 with inner core 2 connects. 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 left between the sampling rod 9 and the inner core 2, and the space is used for accommodating a test strip and a channel of mixed liquid serving as a sample and a preserving fluid. Meanwhile, the pen cap 1 is convenient for workers to take the sampling rod 9.
The test paper strip test device is characterized in that a support frame 5 used for supporting the test paper strip is arranged in the pen holder 4, the support frame 5 is cylindrical, a ring bulge is arranged outside the support frame 5, the outer diameter of the ring bulge is matched with the inner diameter of the pen holder 4, and the inner diameter of the support frame 5 is matched with the outer diameter of the inner core 2. The ring protrusion of the support frame 5 is used for positioning the position of the support frame 5 and is in contact with the test strip, so that the stable structure of the test strip is ensured.
The pen socket is including first pen socket portion 6 and the second pen socket portion 7 of connecting, first pen socket portion 6 is the tube-shape, it is located to preserve liquid storage portion 10 on the second pen socket portion 7, the edge of second pen socket portion 7 be equipped with first pen socket portion 6 complex step and ring are protruding. The pen socket sets up to first pen socket portion 6 and second pen socket portion 7 that mutual interference fit connects, and first pen socket portion 6 and second pen socket portion 7 can be dismantled, and first pen socket portion 6 and second pen socket portion 7 are dismantled conveniently after the separation and are preserved the processing of liquid storage portion 10 and the encapsulation of preserving liquid, and second pen socket portion 7 is equivalent to the bottom of pen socket, if with pen socket with integration processing design, inside processing will be very inconvenient. The outer diameter of the barrel 4 is smaller than the inner diameter of the first sleeve part 6. During detection, the sampling head 901 needs to be inserted into the preserving fluid storage part 10 of the pen cap, the pen holder 4 is inserted into the pen cap through external movement, and the outer diameter of the pen holder 4 is smaller than the inner diameter of the first pen cap part 6 so as to prevent the pen holder 4 from being clamped by the pen cap and cause the insertion failure of the sampling head 901.
The separation sleeve 8 is opposite to the preservation solution storage part 10 in a hanging mode, and one end, connected with the pen cap, of the separation sleeve 8 is an arc-shaped surface. The separation sleeve 8 is opposite to the preservation solution storage part 10 in a hanging mode, so that the sampling head 901 is prevented from mistakenly touching the preservation solution storage part 10 when a sample is preserved, a protection effect is achieved, and when the separation sleeve 8 is contacted with the preservation solution storage part 10 irresistably under the action of external force, the separation sleeve 8 can be prevented from puncturing the thin film 1001 of the preservation solution storage part 10 due to the shape of the arc-shaped surface.
One end of the inner core 2 facing the preservation solution storage part 10 is provided with a reducing structure. The reducing structure is used for reducing the contact area, increasing the pressure at the moment when the inner core 2 is in contact with the thin film 1001, and enabling the inner core 2 to puncture the thin film 1001 more easily.
The cross-sectional shape of the sampling rod 9 is a polygon, and the test strip is attached to the side surface of the sampling rod 9. The more test paper strips that the side of sampling rod 9 is more just can place more, can detect more projects simultaneously, improves the detection efficiency of device greatly. For example, in the present embodiment, the cross-sectional shape of the sampling rod 9 is a square, so the sampling rod 9 has four sides, and four test strips can be placed on the sampling rod for four test items.
An opening of the preservation solution storage part 10 is provided with an expanding structure. The diameter of the diameter expansion structure is larger than the outer diameter of the inner core 2, so that the inner core 2 is prevented from being clamped when penetrating into the preservation solution storage part 10.
The penholder 4 and the inner core 2 are both made of transparent materials. In the embodiment, the penholder 4 and the inner core 2 are made of transparent acrylic materials. The acrylic material has crystal transparency, the light transmittance is more than 92%, the light is soft, and the vision is clear; the coating has excellent weather resistance, higher surface hardness and surface gloss and better high temperature resistance; the product has good processing performance, and can be thermoformed or mechanically processed; the density is low; no sharp fragments are formed like glass after being crushed; good stability and resistance to corrosion of various chemicals. After 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.
The working principle is as follows:
and (3) sample preservation: the sampling rod 9 is utilized to collect a sample, then the sampling rod 9 is placed in the inner core 2, and the separating sleeve 8 and the pen cap are sleeved on the sampling rod, so that the sample is stored.
Detecting a sample: the separation sleeve 8 is taken down, the pen holder 4 is moved into the pen sleeve, the sampling head 901 penetrates into the storage solution storage part 10, the film 1001 is pressed, the internal pressure of the storage solution storage part 10 is increased, the storage solution is pressed to contact the sampling head 901 at the moment of penetrating the film 1001, the sampling head 901 flows through the filter plate through the fluid cavity channel of the inner core 2 and then contacts with the test strip on the support frame, and the sample of the sampling head 901 can be judged to be positive or negative through the test strip color development result because the storage solution is mixed with the sample positioned on the sampling head 901 in the period. The staff can see through transparent pen-holder 4 and inner core 2 and observe the liquid flow process and the color change of test paper strip externally, and is very convenient.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims (10)

1. The utility model provides an instant pen form device that detects, its characterized in that, includes inner core, pen-holder, sampling rod, divider sleeve and pen socket, the inner core is hollow structure, be equipped with the sampling head that is used for the sampling on the sampling rod, the sampling rod 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 fluid chamber way, 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 socket passes through the divider sleeve is connected, be equipped with the portion of preserving the liquid storage that contains preserving liquid in the pen socket, the opening part of preserving the liquid storage is equipped with the film, the surface of sampling rod is equipped with the test paper strip, the opening of preserving the liquid storage with the sampling head is relative.
2. The pen-like device for point-of-care testing as claimed in claim 1, comprising a pen cap, said pen cap being connected to said sampling rod, said pen cap being connected to said inner core.
3. The pen-shaped device for real-time detection according to claim 1, wherein a support frame for supporting the test strip is arranged in the pen holder, the support frame is cylindrical, a ring protrusion is arranged outside the support frame, the outer diameter of the ring protrusion is matched with the inner diameter of the pen holder, and the inner diameter of the support frame is matched with the outer diameter of the inner core.
4. The pen-shaped device for real-time detection according to claim 1, wherein the pen cap comprises a first pen cap portion and a second pen cap portion which are 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 which are matched with the first pen cap portion are arranged on the edge of the second pen cap portion.
5. An instant messaging pen-like device as claimed in claim 4, wherein the outer diameter of the pen barrel is less than the inner diameter of the first sleeve portion.
6. The pen-shaped device for real-time detection according to claim 1, wherein the separating sleeve is opposite to the preserving fluid storage part in a hanging manner, and one end of the separating sleeve connected with the pen sleeve is an arc-shaped surface.
7. The pen-like device for real-time testing as claimed in claim 1, wherein a reducing structure is provided at an end of said inner core facing said preservation fluid storage portion.
8. The pen-shaped device for real-time detection of claim 1, wherein the cross-sectional shape of the sampling rod is a polygon, and the test strip is attached to the side surface of the sampling rod.
9. The pen-shaped device for real-time examination as claimed in claim 1, wherein the opening of the preservation solution storage part is provided with a diameter-expanding structure.
10. A pen-like device for point of care testing as claimed in any one of claims 1 to 9 wherein said barrel and said core are made of transparent material.
CN202111227427.1A 2021-10-21 2021-10-21 Pen-shaped device capable of detecting immediately Active CN113960027B (en)

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