CN215492511U - Hair sample collector - Google Patents

Abstract

The present invention provides a hair sample collector comprising: the hair storage cap comprises a cavity for storing hair and a cap body for covering the cavity, and is characterized in that the cavity is arranged on a fixing part, the fixing part is in rotating fit connection with the cap body, an elastic element is arranged between the cap body and the fixing part, and the elastic element can enable the cap body to be in an open or closed state. The collector is provided with the elastic element and the locking structure, and can be automatically opened when opened and automatically locked when closed.

Description

Hair sample collector

Technical Field

The utility model relates to a collecting device, in particular to a device for collecting hair as a sample for detection in the field of rapid diagnosis.

Background

The following background description is merely an introduction to the general knowledge and is not intended to limit the utility model in any way.

Rapid test devices for medical or home use are commonly used to detect whether a sample contains an analyte, such as for early pregnancy tests, drug tests, and the like. The detection device is provided with a collection cavity for collecting a sample to be detected, and a test element is arranged in the collection cavity. The sample to be tested enters the collection cavity through the opening of the collection cavity and then contacts with the test element, and the test element detects the sample to be tested. The test element has a detection zone for displaying the detection result, which can be read from outside the collection chamber through the side wall of the collection chamber.

When the sample is a hair sample, the hair contains the sample for detection, but the analyte is dissolved and extracted from the hair in a physical or chemical manner to prepare a solution, so that the next analysis can be performed. The traditional method is that the hair is cut off by scissors, then the hair is put into a sample bag and then the sample bag is sent into a detection mechanism, so that the detection mechanism needs to continue to process the sample, such as continuous cutting or finishing, and then the chemical reagent treatment is carried out to dissolve the analyte, which brings inconvenience to the sample processing.

The analytes (e.g., drug abuse) currently tested in hair samples are typically colloidal gold, enzyme linked immunosorbent assays, or liquid or gas chromatography. However, it is necessary to treat the hair with a chemical agent to separate the analyte from the hair.

Therefore, there is a need to provide a collection device for collecting hair samples that improves sample handling and can be used directly for analyte extraction.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention provides a hair sample collector comprising: the hair storage cap comprises a cavity for storing hair and a cap body for covering the cavity, and is characterized in that the cavity is arranged on a fixing part, the fixing part is in rotating fit connection with the cap body, an elastic element is arranged between the cap body and the fixing part, and the elastic element can enable the cap body to be in an open or closed state.

Furthermore, the collector also comprises a cutting element for cutting off the hair, the cutting element is arranged on the cover body, when the hair is placed on the cavity, an operator controls the cavity to be covered with the cover body, and the cutting element can cut the hair.

Furthermore, a limiting structure for quantifying the hair is arranged on the cavity.

Further, the defining structure is an aperture, and when a hair is placed on the cavity, the hair is positioned in the aperture.

Further, the device includes two of the defining structures, and the device includes two of the cutting elements, the number of the cutting elements corresponding to the number of the defining structures.

Further, two limiting structures are respectively positioned at two sides of the cavity.

Further, the fixing part comprises a first fixing part and a second fixing part, and the first fixing part is detachably connected with the second fixing part.

Furthermore, the first fixing part is connected with the cover body in a rotating fit mode, and two symmetrical cambered surfaces are arranged at the bottom of the second fixing part.

Furthermore, the cover body and the cavity are provided with a locking structure, the locking structure can enable the cover body and the cavity to be kept in a closed state, the locking structure comprises a first buckle and a second buckle, and the first buckle and the second buckle are respectively fixed on the cover body and the fixing component.

Furthermore, the device also comprises a baffle plate, the baffle plate is used for preventing an operator from being cut by the cutting element, the baffle plate is positioned on the outer side of the cutting element, a groove capable of accommodating the cutting element is arranged on the cavity, and the groove is matched with the baffle plate.

The utility model has the beneficial effects that:

1. can be directly used for carrying out the ration sample to the hair, the sample is directly stored in the cavity after collecting the sample, accomplishes that the sample length of collecting keeps unanimous, the quantity is roughly the same, the sequencing is neat, and the sample in the cavity can directly be used for the subsequent processing of sample.

2. The cutting element of the device is very sharp, and the baffle plate covering the cutting element is arranged on the device, so that the cutting element can be prevented from being directly exposed outside, and the possibility that an operator is accidentally injured by the cutting element is reduced.

3. The device is provided with an elastic element and a locking structure, so that the collector can be automatically opened when opened and automatically locked when closed.

Drawings

FIG. 1 is a schematic perspective view of a collection device (open state) according to one embodiment of the present invention;

FIG. 2 is a schematic perspective view (closed state) of the collection device of FIG. 1 according to the present invention;

FIG. 3 is a schematic perspective view of a collection device according to another embodiment of the present invention (exploded);

FIG. 4 is a schematic perspective view of the collection device of FIG. 3 according to the present invention (closed position);

FIG. 5 is a schematic perspective view (open) of the collection device of FIG. 3 according to the present invention;

FIG. 6 is a left side view of FIG. 4;

FIG. 7 is a schematic perspective view (open state) of the collecting apparatus shown in FIG. 1 when the position-limiting structure is adjustable;

fig. 8 is a schematic perspective view (closed state) of a collecting device according to a further embodiment of the utility model;

FIG. 9 is a schematic perspective view (open) of the collection device of FIG. 8 according to the present invention;

FIG. 10 is a schematic view of the slider coupled to the cutting element;

FIG. 11 is an exploded view of FIG. 10;

FIG. 12 is an enlarged partial schematic view of region "A" in FIG. 8;

fig. 13 is a bottom view of fig. 8.

Detailed Description

The present invention is further described in terms of structures or techniques, which are understood and interpreted, if not otherwise indicated, in accordance with the general terminology used in the art.

Detection of

Detection means assaying or testing for the presence or absence of a substance or material. Such as, but not limited to, chemicals, organic compounds, inorganic compounds, metabolic products, drugs or drug metabolites, organic tissues or metabolites of organic tissues, nucleic acids, proteins or polymers. In addition, detection may also indicate the amount of the test substance or material. Assays also refer to immunodetection, chemical detection, enzymatic detection, and the like.

Sample/specimen

In the present invention, the sample collected by the collection device may be a sample that is initially in a solid state. The sample can be obtained from human body, animal, plant, nature, etc. The sample taken from a human body may be a solid sample such as hair. The sample taken from the plant may be, for example, a solid sample such as a root, stem, leaf, etc.

The sample is here primarily a hair sample, which is collected with the present device as an assayed sample. The term hair refers to mammalian hair, and may be hair, beard, or any part of the body, such as chest hair, leg hair, or hair around the reproductive organs. In particular, the present invention is generally directed to hair.

Test element

The test element refers to a component capable of detecting an analyte in a sample to be tested. The detection of the analyte by the test element can be based on any technical principle, such as immunology, chemistry, electricity, optics, molecular, physics, etc. The test element of the present invention may be one type or a combination of two or more types. The test element is provided with a detection area for displaying a detection result, and the detection area displays the detection result after the detection is carried out.

One common form of test element is a test strip. The detection of the sample to be detected by the detection test paper can be based on the principle of immunoassay or chemical analysis, and can adopt an analysis mode of a non-competitive method or a competitive method. The test paper comprises a sample adding area, a reagent area and a test area in sequence. After the sample to be detected is added to the sample adding area, the sample flows to the reagent area through capillary action, the reagent area reacts with the reagent, and then the sample continues to flow to the test area through capillary action, and the test area generates signals or does not generate signals, so that the existence or nonexistence of the analyte in the sample to be detected is indicated. For example, if a T-Line (Test Line) appears in the Test area, it indicates that the analyte is not present in the sample to be tested; if the test area does not have a T-line, it indicates that the analyte is present in the sample to be tested. Some test paper still are equipped with the control area, and the control area is located behind the test area, and the sample that flows through the test area continues to flow to the control area, and the control area is used for judging whether the test result of test area is effective. For example, in some test strips, only when a Control Line (C Line) appears in the Control region, the test result in the test region is valid, otherwise, the test result in the test region is invalid. In the present invention, when the detection result of the test element can be read only by passing through the test zone, the detection zone of the test element is the above-mentioned test zone; when the detection result of the test element needs to be judged by combining the signals generated by the test area and the control area, the detection area of the test element comprises the test area and the control area. Of course, in some cases, the detection result of the test element needs to be determined in combination with the signals of other areas, which are also included in the detection area. That is, in the present invention, the complete detection result can be read by the detection zone of the test element. Typically, the test element includes at least a detection zone through which the presence or absence of an analyte in the sample can be determined. For example, the color change can be visible through naked eyes, or can be scanned and read by a scanning device, or the test result can be read by photographing. Or with the appearance of fluorescence, or the appearance of radiation, etc. And reading the test result of the detection area through an equipment instrument.

The test element is typically made of a porous water-absorbent material, such as filter paper, glass fiber, polyester film, nylon film, paper, nonwoven fabric, or any other material that can absorb water.

The test element is used to test a hair sample for an analyte, such as a drug. In some embodiments, the test is for an analyte extracted or isolated from a hair sample.

The method of treating a hair sample can be found in the methods described in, for example, the chinese utility model patent application, publication No. CN108844922, the hair-ablating reagent described in, for example, chinese utility model patent application, publication No. CN109828039A, or the extract of the analyte in hair described in publication No. CN 110044670A. In the case of performing the hair sample test, it is necessary to collect the hair first, then process the collected hair, extract or dissolve the molecular substance from the hair sample, and then perform the subsequent test, and the test may be any test, such as immunoassay, chemical test, gas chromatography, liquid phase test, genetic test, and liquid-gas chromatography.

Analyte substance

Examples of analytes that can be used in the present invention include small molecule substances, including drugs of abuse (e.g., drugs of abuse). By "drug of abuse" (DOA) is meant the use of a drug (usually acting to paralyze nerves) at a non-medical destination. Abuse of these drugs can result in physical and mental damage, dependence, addiction and/or death. Examples of drug abuse include cocaine; amphetamine AMP (e.g., black americane, white amphetamine tablets, dextroamphetamine tablets, Beans); methamphetamine MET (crank, methamphetamine, crystal, speed); barbiturate BAR (e.g., Valium, Roche Pharmaceuticals, Nutley, New Jersey); sedatives (i.e., sleep-aid drugs); lysergic acid diethylamide (LSD); inhibitors (downs, goofballs, barbs, blue devils, yellow jacks, hypnones); tricyclic antidepressants (TCAs, i.e., imipramine, amitriptyline and doxepin); dimethyldioxymethylaniline MDMA; phencyclidine (PCP); tetrahydrocannabinol (THC, pot, dope, hash, weed, etc.); opiates (i.e. morphine MOP or, opiates, cocaine COC, heroin, dihydrocodeinone); anxiolytic and sedative hypnotic, anxiolytic is a kind of mainly used for relieving anxiety, stress, fear, stabilize mood, have hypnotic sedative effects at the same time, including benzodiazepine BZO (benzodiazepines), atypical BZ, fuse dinitrogen NB23C, benzodiazepine, BZ receptor ligand, ring-opening BZ, diphenylmethane derivatives, piperazine carboxylate, piperidine carboxylate, quinazolone, thiazine and thiazole derivatives, other heterocycles, imidazole type sedative/analgesic (such as dihydrocodeinone OXY, methadone MTD), propylene glycol derivative-carbamate, aliphatic compound, anthracene derivatives, etc.. The detection kit of the present invention can also be used for detection of drugs which are used for medical purposes and are easily overdosed, such as tricyclic antidepressants (imipramine or the like) and acetaminophen. After being absorbed by human body, the medicines are metabolized into small molecular substances, and the small molecular substances exist in body fluids such as blood, urine, saliva, sweat and the like or exist in partial body fluids.

These drug substances are also present in hair samples, and the analyte substance in the present invention is typically a drug substance.

Cutting element

The hair detection has a longer period of time in drug detection, mainly because the retention mechanism of the drug in the hair is significantly different from that in biological samples such as blood, urine and the like. The drugs enter urine and blood, which is a process of continuous metabolism and rapid degradation, and the trace of the drugs can completely disappear within a few days. After the drug enters the human body, the drug enters the hair follicle along with the blood circulation, and the drug protomer and the metabolite thereof are fixed by the keratin in the hair and are stably retained in the hair. After the hair recorded with the drug-taking information grows out of the scalp, drugs and metabolites thereof can migrate from one end of the hair root to one end of the hair tip along with the growth of the hair, so that the drug-taking history of the detected person can be reversely deduced through the sectional inspection. Then, how long a drug-taking history can be detected at the longest? This depends mainly on the length of the hair. As long as the hair is sufficiently long, for example, a woman's hair of several tens of centimeters in length, it may even reflect a drug withdrawal within several years. According to the two factors of the growth speed of the hair of the yellow race and the drug rehabilitation time, a certain section of hair at the root end of the hair can be cut off with pertinence, and the operation of a drug rehabilitation person within a certain period of time is reflected.

Therefore, in order to obtain more accurate position of hair, for example, in drug detection, the closer the hair to the skin position, the more the hair can indicate whether or not drug is taken recently, and along with the growth of the hair, the hair far away from the skin, if containing drug, indicates that drug is taken earlier. At present, in a traditional mode, hair samples are cut by scissors generally from a position 3 mm away from the skin, and reserved samples with different lengths can indicate the historical length of drug absorption, for example, the samples are cut into different lengths of 3 cm, 6cm, 7 cm, 8cm, 10 cm and the like, so that the historical length of drug absorption can be approximately calculated. The existing traditional mode has the defects of difficult operation, easy skin injury and the like when a hair sample is cut by scissors; meanwhile, a large amount of hairs can be easily reduced by using scissors to cut hair samples under the condition of no mind; in addition, when the hair is cut, the hair needs to be cut with two scissors, so that the hair can be sampled, and the hair cutting device is complex.

In the utility model, a hair sample is cut (cut) and collected by a cutting element 107, wherein the cutting element 107 can be a blade, and one side of the cutting element is sharp; at least one cutting element 107 is provided, and one cutting element 107 can cut the hair simply, especially the hair sample at the hair tip part can be cut at one time; preferably, two cutting elements 107 are provided, which are suitable for taking hair samples of hair root parts, so that the hair can be cut off directly in one cutting process, the operation is simple and convenient, and meanwhile, the two cutting elements 107 are also suitable for sampling hair samples of hair tip parts, so long as only one cutting element 107 is used for cutting the hair samples in the sampling process.

In some ways, the cutting element 107 is adjustable in position, the adjustable cutting element 107 being primarily for the case of two cutting elements 107, by adjusting the distance between the two cutting elements 107, the cutting of hairs of different lengths is achieved. Generally, it is sufficient to adjust only one of the two cutting elements 107, for example, fig. 8 and 9, because the adjustment of a single cutting element 107 can accomplish the adjustment of the cutting distance, and the adjustment of both cutting elements 107 is somewhat unnecessary, which increases the production cost of the device.

Preferably, the cutting element 107 is provided with a patch for covering the cutting element 107, and the size of the patch matches the size of the cutting element 107, and the matching means: the patch may be sized to conform to the cutting element 107, or may be slightly larger or smaller than the cutting element 107, and may be a little bit knife-edge exposed from the cutting element 107, since the cutting element 107 is very sharp and the patch functions to prevent the cutting element 107 from being exposed and reduce the possibility of accidental injury to the operator from the cutting element 107. Further, the patch is located on the side of the cutting element 107 that may be in contact with the operator's hand.

Limiting structure

Hair samples differ from normal body fluid samples in which the analyte substance is generally dissolved or otherwise contained in the body fluid sample and, once collected, can be used directly for assay or detection. However, for a hair sample, in the above-mentioned conventional hair sampling method, it is difficult to quantify the cut hair in the process of cutting the hair sample with scissors, in order to meet the detection requirement for the cut hair sample, an operator usually selects a few cuts when cutting the hair, then cuts the cut hair in segments to a specified length required for detection, due to the flexibility of the hair, it is difficult to realize the segmented cutting of different sizes, and after the cutting, it is also necessary to adopt a weighing device to weigh the weight of the sample, remove the redundant hair sample, and finally collect the processed hair, which is very tedious in process. The limited structure is used for avoiding the trouble of operations such as hair weighing, hair secondary cutting and the like of an operator.

In the present invention, the definition structure can be used for length confirmation, length adjustment and/or number confirmation, number adjustment. The length confirmation is mainly used for determining the length of the cut hair, the length adjustment is mainly used for adjusting the length of the cut hair, the number confirmation is mainly used for adjusting the number (number) of the cut hair, and the number adjustment is mainly used for adjusting the number of the cut hair. The following is specifically described:

a limiting structure for determining the number of cuts is provided comprising an aperture 105, the aperture 105 being in the shape of a half-open crescent or a half-circle, when a sample of hair is to be taken, a tuft or strand of hair is positioned in the aperture 105 and a cutting element 107 is caused to cut a length of hair along the aperture 105 as a sample for detection. The function of the holes 105 is to quantify the hair, since the holes 105 are sized and the number of hairs that can be stored therein is also determined, which can be used to roughly limit the number of hairs, in this way replacing the traditional hair quantification method: and weighing and quantifying. Preferably, the holes 105 limiting the number of hairs can be of any shape, semi-open, through-hole, square, circular. The aperture 105 is not limited to a semi-circular aperture only as long as the cutting element 107 is moved such that sufficient shear forces are generated between the aperture 105 and the cutting element 107 to sever the hair. Since hair samples are generally soft and difficult to cut, the cutting element 107 is located close to the aperture 105, typically within 5mm, and further within 2mm, in order to generate sufficient shear force between the aperture 105 and the cutting element 107.

In some embodiments, referring to fig. 7, the size of the hole 105 may be adjusted, and the adjustment of the size of the hole may adjust the amount of hair sampling (number of hair sampling), specifically, the collecting device includes a fixing part 70, an insert plate 99 is provided on the fixing part 70 and is movable up and down, and the hole 105 is formed between the insert plate 99 and the fixing part 70, that is, the limiting structure, and the size of the hole 105 may be adjusted by moving the insert plate 99 up and down, so as to adjust the amount of hair cutting. Further, if two position-limiting structures are provided on the cavity 108, two insertion plates 99 are correspondingly provided, and the two insertion plates 99 need to be adjusted together, so that the amount of hair accommodated in the two position-limiting structures can be matched. Preferably, a connecting plate (not shown) is provided between the two insertion plates 99, and the two insertion plates 99 can be adjusted simultaneously by adjusting the connecting plate.

The defining structure not only enables the number of hairs to be confirmed, the number to be adjusted, but in some ways, a defining structure for determining the length to be cut is provided, as shown in fig. 1, when there are two cutting elements 107, the defining structure comprises two correspondingly arranged holes 105, in this case, the distance between the two holes 105 is determined, the cutting element 107 is arranged close to the holes 105, the two cutting elements 107 cut the hairs through the positions of the two holes 105 by controlling the two cutting elements 107 to move downwards, and the length of the cut hairs is also determined because the distance between the two holes 105 and the distance between the two cutting elements 107 are determined. I.e. the size of the holes 105, accomplishes quantifying the hair, the distance between the two holes 105, the distance between the two cutting elements 107, accomplishes quantifying the length of the hair. When the technical scheme is adopted for collecting the hair for sampling, the cut hair can be kept consistent in length, approximately same in quantity and orderly in sequencing, and the collected hair samples are consistent.

In some aspects, a limiting structure for adjusting the cut length is provided, which corresponds to the adjustable cutting element 107 described above, and which further comprises an adjustable position aperture 105, and after the position adjustment of the cutting element 107, the corresponding adjustment of the position of the aperture 105 is performed (if the adjustment of the position of the aperture 105 is not performed, there may be a problem of insufficient shear force due to the softness of the hair). In yet another alternative, the defining structure includes three and more apertures 105, the apertures 105 being collinear, and adjustment of the cutting distance is achieved by adjusting the cutting element 107 to align with the apertures 105 at different positions.

Moving part

Since the cutting element 107 is relatively sharp, especially when the cutting element 107 is a blade, and is relatively thin, it is desirable to avoid direct contact between the operator's hand and the cutting element 107 during cutting by the cutting element 107, and therefore a moving member is introduced, which is used to hold the cutting element 107, and the cutting by the cutting element 107 is accomplished by controlling the movement of the moving member.

Preferably, the moving part is a cover 102, the cover 102 is provided with fixing grooves 71 for fixing the cutting elements 107, the cutting elements 107 fixed in the fixing grooves 71 cannot move relative to the fixing grooves 71, generally, the number of the fixing grooves 71 corresponds to the number of the cutting elements 107, that is, when there is one cutting element 107, there is one fixing groove 71; when two cutting members 107 are provided, two fixing grooves 71 are provided. Since the position of the fixing groove 71 on the cover 102 is fixed and cannot be changed, the distance between the two cutting members 107 is also fixed, as shown in fig. 1.

Preferably, the cover 102 is provided with a baffle 97 capable of covering the cutting element 107, the baffle 97 has the same function as the patch, both the function of the baffle 97 and the function of the patch reduce the possibility that an operator is accidentally injured by the cutting element 107, the size of the baffle 97 is the same as that of the cutting element 107 or larger than that of the cutting element 107, and the baffle 97 is located outside the cutting element 107.

In some embodiments, referring to the above-mentioned "a cutting element 107 capable of adjusting position and a fixed cutting element 107", both cutting elements 107 can be disposed on the cover 102, as shown in fig. 8-9, a fixing groove 71 is disposed on the cover 102, a fixed cutting element 107 is mounted in the fixing groove 71, a sliding groove 86 is disposed on the cover 102, a sliding block 85 is disposed in the sliding groove 86, a cutting element 107 is disposed on the sliding block 85, and the cutting element 107 is driven to move by the movement of the sliding block 85, so as to perform hair cutting with different length. Preferably, the cover 102 is marked with dimensions to facilitate the operator to control the slide block 85 to slide to different positions to adjust the cutting dimension.

Preferably, referring to fig. 10 and 11, a sliding groove portion 84 is arranged on the sliding block 85, the sliding groove portion 84 is matched with the sliding groove 86 in shape, the sliding block 85 is convenient to slide, a mounting groove 83 is arranged on the sliding groove portion 84, the sliding groove portion 84 of the sliding block 85 is detachably connected with the adaptor 82, a first mounting portion 79 is arranged on the adaptor 82, the first mounting portion 79 can be inserted into the mounting groove 83, when the assembly is performed, the sliding groove 86 needs to be clamped between the sliding groove portion 84 of the sliding block 85 and the adaptor 82, a second mounting portion 80 is further arranged on the adaptor 82, and the second mounting portion 80 is used for connecting the cutting element 107. The second mounting portion 80 is U-shaped to sandwich the cutting element 107.

Preferably, with reference to fig. 12, two stop protrusions 74 are provided on both sides of the chute 86, and these four stop protrusions 74 can position the slider 85 at a predetermined position in the chute 86, which means that the operator is reminded that the distance between the two cutting elements 107 has reached a predetermined value, such as 3 cm, 6cm, 7 cm, 8cm, 10 cm, etc.

Fixing member

The limiting structure is arranged on the fixing part 70, the fixing part 70 is a carrier for placing hair, in particular, the hair is placed on the limiting structure of the fixing part 70, preferably, a cavity 108 for collecting or storing a hair sample is arranged in the fixing part 70, when the cutting element 107 moves downwards, the hair is cut through the limiting structure, the hair falls into the cavity 108 to obtain a hair sample, and the cavity 108 and the hair sample in the cavity can be sent to the inspection mechanism together for further processing.

Preferably, the fixing part 70 is provided with a groove 96 matched with the baffle 97 (cutting element 107), the groove 96 can accommodate the cutting element 107, the groove 96 is communicated with the limiting structure on the fixing part 70, when the cover body 102 and the cavity 108 are covered, the baffle 97 is clamped into the groove 96, the cutting depth of the cutting element 107 is limited, and the cutting device is practical, safe and convenient.

In some other embodiments, the fixing member 70 is detachably designed for sampling, and the cavity 108 is detachably designed. For example, as shown in fig. 3 to 6, the fixing member 70 is assembled by two parts, and the corresponding cavity 108 therein is also composed of two cavities, the fixing member 70 includes a first fixing member 91 and a second fixing member 90, the first fixing member 91 and the second fixing member 90 are detachably connected, specifically, the first fixing member 91 is provided with a pin 89, the second fixing member 90 is provided with a corresponding insertion hole 88, the bottom of the second fixing member 90 is provided with two arc surfaces 87, and the two arc surfaces 87 can facilitate an operator to take off the second fixing member 90 by applying force to the fingers. Meanwhile, the two cambered surfaces 87 also have an influence on the second cavity inside the second fixing part 90, and the cambered surfaces 87 can play a guiding role and collect the cut hair sample to the middle position of the second cavity.

Preferably, for example, in fig. 13, the bottom of the fixing member 70 is provided with a flat or inwardly recessed region 73, and the region 73 helps the cavity 108 to be horizontally placed on a table. The inwardly recessed region 73 helps to stabilize the device when held by the operator.

In some embodiments, referring to the above-mentioned "a cutting element 107 capable of adjusting position, a fixed cutting element 107", for example, as shown in fig. 9, a partition plate 78 is disposed in a cavity 108, the partition plate 78 divides the cavity 108 into a third cavity 76 and a fourth cavity 75, the partition plate 78 is used for supporting the hair sample with a specified length when cutting, further, a limiting structure is disposed on the partition plate 78, all the limiting structures in the device are located on the same straight line, and an abdicating groove 77 is disposed in the partition plate 78, and the abdicating groove 77 is mainly used for abdicating the cutting element 107 when cutting the hair sample with a specified length, so as to avoid the collision between the cutting element 107 and the partition plate 78.

Preferably, the partition 78 is not adjustable, and when the sliding block 85 slides into the area formed by the four limiting protrusions 74, the cutting element 107 connected with the sliding block 85 just faces the receding groove 77.

Preferably, the partition 78 is also adjustable, and can be correspondingly adjusted in sliding manner in the cavity 108 according to the position of the adjustable cutting element 107, so that the cutting element 107 connected with the slider 85 just faces the offset groove 77, thereby enhancing the flexibility in cutting hair.

Preferably, the partition plates 78 are not adjustable, two or more partition plates 78 are disposed in the cavity 108, the cavity 108 is divided into three or more parts, and an operator can adjust the position of the cutting element 107 according to the length of the hair sample to be cut, so that the cutting element 107 is aligned with the corresponding abdicating groove 77 of the partition plate 78, and then the hair sample can be cut. Furthermore, the sliding groove 86 is provided with limiting protrusions 74 corresponding to the number of the partition plates 78, one partition plate 78 corresponds to four limiting protrusions 74, and if 3 partition plates 78 are provided in the cavity 108, 12 limiting protrusions 74 are provided in the sliding groove 86.

Moving part and fixed part

The fixed and moving parts are two terms used in the present invention to name the different parts of the device, and the moving and fixing are two imaginary relative terms: since the moving part is provided with the cutting element, the cutting element is expected to move in the cutting process, so that the moving part is named; whereas the stationary part is mainly used for storing hair samples, the part for storing hair is intended to be immobile and is therefore named stationary part. It should be noted that the fixed component is not fixed, and the moving component is not always moving, as long as relative movement can occur between the fixed component and the moving component.

Preferably, the fixed part and the moving part are connected together, so that the integrity of the device can be improved, the parts are not loose, and the situation that the parts are lost is not easy to occur. Specifically, in fig. 1-6 and 8-9, the cover 102 (moving part) is connected to the fixed part 70 in various optional manners, such as a sliding fit connection, a rotating fit connection (hinge), in which the cover 102 is hinged to the fixed part 70 via a rotating shaft 98, and the cover 102 can be opened or closed via the rotating shaft 98. When the cover 102 is opened, the hair is positioned on the limiting structure (the hole 105), the cutting element 107 and the limiting structure form a scissor type in the process of covering the cover 102 and the cavity 108, the relative motion of the cutting element 107 forms shearing force, the cutting element 107 on the cover 102 finishes cutting the hair sample, meanwhile, the cut hair is stored in the cavity 108, and when the cover 102 covers the cavity 108, the hair sample in the cavity 108 can be prevented from leaking. The processed hair sample and device can be sent directly to a testing center without weighing, and can be directly used for subsequent processing steps, such as extraction of chemical reagents.

Preferably, an elastic element may be disposed between the cover 102 and the fixing member 70, and the elastic element may be a spring 103, and the spring 103 has the capability of restoring the cover 102 and the fixing member 70 to the natural positions. For example, when the lid 102 is opened, the spring 103 is in a relaxed state, and when the lid 102 is closed (when the lid 108 is closed), the spring 103 is in a tensed state. Alternatively, it will be appreciated that spring 103 allows cover 102 to be in a relaxed, naturally open position, such that cover 102 does not cover cavity 108, and in an open position, when it is desired to close, it is necessary to overcome the spring force to allow cover 102 to cover cavity 108.

In some other forms, such as fig. 4 and 5, the cover 102 and the securing member 70 include a mating locking structure that includes a first catch 95 and a second catch 94, the first catch 95 and the second catch 94 engaging when the cover 102 is closed with the cavity 108; when the first catch 95 and the second catch 94 are unlocked, the cover 102 is separated from the cavity 108. In combination with the spring 103, the cover 102 and the fixing member 70 can be automatically opened during unlocking, so that an operator can take out a cut hair sample from the cavity 108 conveniently. Further, a first buckle 95 and a second buckle 94 are respectively arranged on the cover 102 and the fixing component 70, the first buckle 95 is provided with a protrusion 93 with a triangular cross section, a square hole 92 matched with the protrusion 93 is arranged inside the second buckle 94, the hole 92 can buckle the protrusion 93, if the first buckle 95 and the second buckle 94 are needed to be unlocked, the protrusion 93 can be separated from the hole 92 only by slightly snapping the second buckle 94 outwards or slightly pressing the first buckle 95 inwards, and the cover 102 is automatically opened under the action of the spring 103.

Collecting device

The collecting device is composed of one or a combination of several of the cutting elements, the limiting structures, the moving parts and the fixing parts, wherein the cutting elements are necessary, the rest limiting structures, the moving parts and the fixing parts and the respective technical schemes thereof can be selected, the selection of the structures or the parts can bring corresponding technical effects, the overall performance of the collecting device can be improved, and correspondingly, a part of production cost can be increased, so that the selection can be carried out according to actual production.

The collecting device formed by combining the cutting element, the limiting structure, the moving part and the fixing part has the advantages of all structures/parts, can efficiently collect or collect hair samples, ensures the consistency and the accuracy of collected samples, and simultaneously realizes the quantitative purpose.

Preferably, the collecting device has multiple different models, and the collecting device size of different models is different, and the size difference is including the size difference of injecing the structure, and the different … … operators of distance between two injecing the structure can select the collecting device of corresponding model to take a sample according to the demand that detects, and when the collecting device was selected, the length of hair, quantity just corresponding definite to satisfy the hair sample of certain weight that detects the needs. The defect that the traditional scissors need to be weighed again after being cut is overcome.

Meanwhile, the sampling position of the collecting device is not limited, for example, a hair sample at the position of a hair root needs to be taken, only the side wall 109 of the fixing part 70 needs to be tightly attached to the scalp, the hair is straightened and moved to a limited structure, and then the cover body 102 is pressed and covered; it is easier to get a length of hair at the tip of the hair, by straightening the hair of the designated length and moving it into the defined configuration, and then pressing the cover 102.

Preferably, the top position of the cover 102, the bottom middle position of the second fixing member 90 and the two ends of the second fixing member 90 are provided with stripe regions, which can be used to increase the friction force between the device and the hand.

In order to make the technical solution of the present invention better understood, the following is a brief description of how to use the collecting device of fig. 8-13, and since the collecting device provided in fig. 8-13 is more complicated, after understanding the collecting device, those skilled in the art can easily understand the collecting device of fig. 1-7. It is assumed that in the collecting device, when the slider 85 is within the area of the four limit projections 74, the distance between the two cutting elements 107 is 12 cm; when the slide 85 is moved to the right most position, the distance between the two cutting elements 107 is 28 cm.

The first method of use is described below, which is mainly to leave a sample of the hair of a person to be tested with a long hair, while keeping the sample as long as possible, (the length of the hair of the person to be tested is greater than the maximum distance between two cutting elements 107, here, the length of the hair is greater than 28 cm.) the operator moves the cutting elements 107 to the right-most position by moving the slider 85 on the slide groove 86, straightens the hair to be sampled and places it on the limiting structure, then closes the cover 102, and cuts the hair during the movement of the two cutting elements 107, and due to the presence of the partition 78, the cut hair is cradled on the limiting structure, and the operator takes off the excess hair (exposes the hair outside the collecting device), thereby completing the sample leaving of the hair with a sample length of 28 cm.

The second method of application will be described below, which is mainly to leave a sample of the hair of a person to be tested with a long hair, and to keep the sample as short as possible (the length of the hair of the person to be tested is greater than the maximum distance between two cutting elements 107, and here, the length of the hair is greater than 28 cm.) by moving the slider 85 to the area formed by the four limit protrusions 74, straightening the hair to be sampled and placing the hair on the limit structure, then closing the cover 102, cutting the hair by the two cutting elements 107 during the movement, dropping the cut hair into the first fixing part 76, removing the excess hair by the operator (exposing the hair outside the collecting device), and completing the sample leaving of the hair, wherein the sample length is 12 cm.

A third method of use is described below, mainly for a test person whose hair is longer, who has a length greater than the maximum distance between two cutting elements 107, i.e. a hair length greater than 28cm, to leave a sample of hair while leaving two different lengths of hair: firstly, the cutting elements 107 are moved to the rightmost position by moving the sliding block 85 on the sliding chute 86, the hair to be sampled is straightened and placed on the limiting structure, then the cover body 102 is closed, the two cutting elements 107 cut the hair once in the moving process, the operator takes off the redundant hair (the hair outside the collecting device is exposed), the hair after the hair is cut once cannot directly fall into the cavity 108 due to the existence of the partition plate 78, but the hair is erected on the limiting structure, at the moment, the operator places the collecting device in a horizontal state, opens the cover body 102, moves the sliding block 85 to an area formed by four limiting bulges 74, closes the cover body 102 again, the cutting elements 107 on the sliding block 85 cut the hair after the hair is cut once again, at the moment, the hair after the hair is divided into two sections, one section falls into the first fixing part 76, and the other section falls into the second fixing part 75, the hair sample is left, and the length of one section of the sample is 12cm, and the length of the other section of the sample is 16 cm.

A fourth method of use is described, mainly for test persons with short hairs, while leaving the hairs as short as possible (the length of the hairs is less than the maximum distance between the two cutting elements 107, which is greater than the distance between the two cutting elements 107 when the slider 85 is in the region of the four limit projections 74, i.e. the length of the hairs is greater than 12cm and less than 28 cm.): the user moves the slider 85 to the area formed by the four limiting protrusions 74, the side wall 109 of the cavity 108 with the side provided with the cutting element 107 is tightly attached to the scalp, the hair is straightened and moved to the limiting structure, the cover body 102 is pressed and closed, the two cutting elements 107 cut the hair with the designated length at the hair root part and fall into the third cavity 76, and the cutting element 107 on the slider 85 cuts the redundant hair and falls into the fourth cavity 75.

The above description is only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative work should be covered within the protection scope of the present invention, and therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

The utility model shown and described herein may be implemented in the absence of any element, limitation, or limitations specifically disclosed herein. The terms and expressions which have been employed are used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions of excluding any equivalents of the features shown and described or portions thereof, and it is recognized that various modifications are possible within the scope of the utility model. It should therefore be understood that although the present invention has been specifically disclosed by various embodiments and optional features, modification and variation of the concepts herein described may be resorted to by those skilled in the art, and that such modifications and variations are considered to be within the scope of this invention as defined by the appended claims.

The contents of the articles, patents, patent applications, and all other documents and electronically available information described or cited herein are hereby incorporated by reference in their entirety to the same extent as if each individual publication was specifically and individually indicated to be incorporated by reference. Applicants reserve the right to incorporate into this application any and all materials and information from any such articles, patents, patent applications, or other documents.

Claims (10)

1. A hair sample collector, comprising: the hair storage device comprises a cavity for storing hair and a cover body for covering the cavity, wherein the cavity is arranged on a fixing part, the fixing part is connected with the cover body in a rotating fit manner, an elastic element is arranged between the cover body and the fixing part, and the elastic element can enable the cover body to be in an open or closed state.

2. The hair sample collector of claim 1, further comprising a cutting element for cutting hair, said cutting element being disposed on said cover, said cavity being controlled by an operator to close said cover when hair is placed on said cavity, said cutting element being capable of cutting hair.

3. A hair sample collector as claimed in claim 2 wherein said housing is provided with a defining formation for hair quantification.

4. A hair sample collector as claimed in claim 3 wherein said defining formation is an aperture, and when a hair is placed on said chamber, the hair is located in the aperture.

5. A hair sample collector as claimed in claim 3 wherein said collector includes two of said defining formations and said collector includes two of said cutting elements, the number of said cutting elements corresponding to the number of said defining formations.

6. A hair sample collector as claimed in claim 5 wherein two of said defining formations are located on either side of said chamber.

7. A hair sample collector according to claim 1 wherein said securing means comprises a first securing means and a second securing means, said first securing means being releasably connectable to said second securing means.

8. A hair sample collector as claimed in claim 7 wherein said first fixing member is pivotally engaged with said cover and said second fixing member has two symmetrical curved surfaces at its base.

9. A hair sample collector as claimed in claim 1 wherein said cover and said housing have locking means, said locking means being adapted to hold said cover and said housing in a closed position, said locking means comprising first and second catches, said first and second catches being secured to said cover and said securing means, respectively.

10. A hair sample collector according to claim 2, further comprising a barrier for preventing an operator from being cut by said cutting element, said barrier being located outside said cutting element, said housing having a recess for receiving the cutting element, said recess being complementary to said barrier.

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