CN219641305U - Dry blood spot sampling device - Google Patents
Dry blood spot sampling device Download PDFInfo
- Publication number
- CN219641305U CN219641305U CN202223140925.5U CN202223140925U CN219641305U CN 219641305 U CN219641305 U CN 219641305U CN 202223140925 U CN202223140925 U CN 202223140925U CN 219641305 U CN219641305 U CN 219641305U
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- blood
- sampling
- filter paper
- blood spot
- dried
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- 239000008280 blood Substances 0.000 title claims abstract description 164
- 210000004369 blood Anatomy 0.000 title claims abstract description 162
- 238000005070 sampling Methods 0.000 title claims abstract description 98
- 238000001125 extrusion Methods 0.000 claims abstract description 32
- 238000010241 blood sampling Methods 0.000 claims abstract description 25
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 17
- 241001552669 Adonis annua Species 0.000 description 8
- 238000012360 testing method Methods 0.000 description 5
- 238000003556 assay Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 208000020241 Neonatal disease Diseases 0.000 description 1
- 208000037129 Newborn Diseases Infant Diseases 0.000 description 1
- 208000016097 disease of metabolism Diseases 0.000 description 1
- 230000006806 disease prevention Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 208000030159 metabolic disease Diseases 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Investigating Or Analysing Biological Materials (AREA)
Abstract
The utility model discloses a dry blood spot sampling device, which comprises a blood sampling tube and a dry blood spot sampling book; the blood sampling tube comprises a blood storage section and an extrusion section connected below the blood storage section; the extrusion section comprises soft rubber tubes and hard plastic arc sheets which are connected with each other; the lower part of the extrusion section is connected with a positioning cylinder with an opening at the bottom; a blood drop head communicated with the extrusion section is arranged in the positioning cylinder; the dried blood spot sampling book comprises a cover and a sampling page; the cover and the sampling page can be folded in half; the sampling page is provided with a dry blood spot sampling area and an information filling area; positioning grooves are distributed on the dried blood spot sampling area; sampling filter paper is arranged in the positioning groove; the sampling filter paper is connected with a filter paper taking-out piece which extends out of the positioning groove; the positioning cylinder is matched with the positioning groove. The device can ensure that each dried blood spot collecting area can be filled with a blood sample, the dried blood spots are uniformly and well formed, meanwhile, filter paper does not need to be trimmed, and the device is more convenient to store and take.
Description
Technical Field
The utility model belongs to the technical field of medical auxiliary equipment, and particularly relates to a dried blood spot sampling tube and a matched sampling book.
Background
The dry blood spot sample is the dry blood spot formed by collecting the whole blood sample on a special filter paper sheet and drying the blood. The dried blood spot sample has good biological stability and safety, is convenient to store and transport, and is an important means for blood assay. In neonatal disease prevention and control treatment, the dried blood spot sample is widely applied to the fields of neonatal metabolic disease screening, neonatal ground-fault screening, paternity test and the like.
Methods for collecting dry blood spots generally include a direct sampling method, a syringe sampling method and a blood sampling tube sampling method. The direct sampling method is to puncture the finger and other parts of the person to be detected with the blood taking needle, collect the corresponding parts of a drop of blood according to the blood spots drawn on the sampling filter paper after bleeding, and make the blood infiltrate the filter paper to form blood spots; the syringe sampling method is to directly draw a blood sample from a human body by using a syringe, and then drip the blood sample on the corresponding part of the filter paper to form a dry blood spot; the blood sampling tube is used for sampling a certain amount of blood sample, and then a syringe is used for sampling blood drops on filter paper to form dry blood spots. The blood sample collected by the method needs to be at least reserved with four to five blood spots, the blood needs to be filled in the corresponding area of the previously drawn dry blood spot collecting area on the filter paper, the blood spots can form the required dry blood spots after being coagulated at the natural temperature for four hours, and finally the blood spot collecting area stained with the dry blood spots needs to be cut off and stored correspondingly.
The problems that the dry blood spots are not uniformly smeared, a plurality of dry blood spots are connected or the formed blood spots are not aligned and the like are often caused when the dry blood spots are actually collected clinically, so that the subsequent shearing and the retention of the dry blood spots are not facilitated; in order to facilitate uniform storage, transportation and assay, the dried blood spot sample is trimmed according to the range of blood spot collecting positions drawn in advance on filter paper, and certain shape is required to be limited, if some dried blood spots cannot fill the blood spot sample reserving positions drawn on the filter paper, the blood content of the trimmed dried blood spots is less, so that the sample is not collected enough or cannot be rechecked; and the trimming of the dry blood spots also consumes a certain amount of manpower.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, a dried blood spot collecting area cannot be uniformly coated with blood, so that trimming is not facilitated, and a blood sample is less, and provides a dried blood spot sampling tube and a matched sampling book.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a dry blood spot sampling tube and a matched sampling book comprise a blood sampling tube and a dry blood spot sampling book; the blood sampling tube comprises a blood storage section and an extrusion section connected below the blood storage section; the extrusion section comprises soft rubber tubes and hard plastic arc sheets which are connected with each other; the lower part of the extrusion section is connected with a positioning cylinder with an opening at the bottom; a blood drop head communicated with the extrusion section is arranged in the positioning cylinder; the dried blood spot sampling book comprises a cover and a sampling page; the cover and the sampling page can be folded in half; the sampling page is provided with a dry blood spot sampling area and an information filling area; positioning grooves are distributed on the dried blood spot sampling area; sampling filter paper is arranged in the positioning groove; the sampling filter paper is connected with a filter paper taking-out piece extending out of the positioning groove; the positioning cylinder is matched with the positioning groove.
The blood sampling tube is internally provided with a certain vacuum degree, and a blood sampling needle can be adopted for blood sampling according to a general blood sampling flow; the blood storage section is used for storing a blood sample plate; after the extrusion section is extruded, blood is dripped from the blood dripping head; the positioning cylinder is matched with the positioning groove of the dried blood spot sampling book and then drops out blood drops, so that the dropped blood drops can be ensured to fall at the center of filter paper in the dried blood spot sampling groove, and the blood spots are uniformly formed; the dry blood spot sampling groove is provided with a certain recess, which is beneficial to placing filter paper; pulling the filter paper taking-out sheet can pull the sampling filter paper out of the dry blood spot sampling groove without cutting; the information filling area is used for filling in information of a sampled person, sampling time and the like; the folded dried blood spot sampling book is convenient to store and does not pollute the inside; the positioning cylinder is made of transparent materials, and whether blood drops are present or not can be observed.
As a further technical improvement, a hard extrusion limiting cylinder is arranged in the soft rubber tube; the upper end of the extrusion limiting cylinder is communicated with the blood storage section, and the lower end of the extrusion limiting cylinder is open. The extrusion limiting cylinder can limit the inward extrusion amount of the soft rubber tube, so that excessive extrusion is avoided, and blood drops from the blood dropping head are prevented from being excessively extruded, and when the extrusion limiting cylinder is pressed, a drop of blood can be dropped.
As a further technical improvement, the hard plastic arc piece is provided with a movable protection arc piece which can be opened movably. The movable protection arc piece can avoid the soft rubber tube to be extruded after being closed, and the soft rubber tube can be extruded after being opened.
As a further technical improvement, one end of the movable protection arc piece is hinged with the hard plastic arc piece, and the other end is provided with a fixed buckle; the hard plastic arc piece is provided with a fixed buckle female buckle corresponding to the fixed buckle sub buckle. The movable protection arc piece can be fixed after the fixed buckle is buckled with the fixed buckle female buckle.
As a further technical improvement, an end cover correspondingly matched with the positioning cylinder is also arranged. The end cover is used for protecting the blood dripping head; the end cover and the positioning cylinder can be combined in a sleeving or threaded connection mode.
As a further technical improvement, a sealing cap matched with the pair of blood drops is arranged inside the end cover; and a rubber sealing layer is arranged in the sealing cap. After the end cover is combined and connected with the positioning cylinder, the blood drop head is inserted into the sealing cap and is sealed by the rubber sealing layer, so that the whole blood sampling tube is sealed, vacuum in the blood sampling tube can be ensured when the blood sampling tube is not used, and blood can not leak after the blood is contained.
As a further technical improvement, at least two groups of reinforcing support bars are arranged in the soft rubber tube. The function of the reinforcing support bar is to ensure that the soft rubber tube cannot be contracted inwards under the condition that the blood sampling tube is provided with vacuum, and meanwhile, the reinforcing support bar is a plastic bar, so that the blood sampling tube can be easily pressed inwards by hands.
As a further technical improvement, the top of the blood storage section is provided with a blood taking cap. The blood taking cap seals the mouth of the blood taking and sampling tube, so that the mouth of the blood taking and sampling tube is the same as the mouth of a common blood taking test tube, and the blood taking can be performed after the blood taking needle pierces the blood taking cap.
The use method of the dried blood spot sampling tube and the matched sampling book comprises the following steps:
when in use, firstly, a blood sample is collected through the blood sampling tube, and the method is the same as the conventional blood collection method by using the blood sampling needle; when the blood spot is taken, the positioning cylinder is matched and placed on a positioning groove on the dried blood spot sampling book, the soft rubber tube on the pressing section is twisted by hand, at the moment, blood is extruded out of the blood dripping head and is dripped into the positioning groove, and the sampling filter paper is infiltrated; at this time, the blood drops to the middle of the sampling filter paper, so that the sampling filter paper is uniformly filled; after collecting a proper number of blood spots, filling relevant information of a patient in an information filling area, sampling time of the blood spots and the like; after a certain period of time, the blood spots are completely coagulated to form dry blood spots, and then the cover and the sampling page can be folded in half to protect the dry blood spots; when the dried blood spots are required to be taken for testing, the sampling filter paper with the dried blood spots can be taken down from the positioning groove only by pulling the sampling filter paper taking-out piece, and the testing is carried out without cutting.
The technical scheme of the utility model has the following beneficial effects:
1. according to the utility model, through the positioning cylinder and the positioning groove, blood can be accurately dripped into the middle of the sampling filter paper, and uneven blood spots are avoided.
2. According to the utility model, through the positioning groove, blood spots and blood flowing out can be prevented from contacting with adjacent blood spots, so that the blood spots are formed in order.
3. According to the utility model, the limit cylinder is extruded, so that the bleeding amount after the soft rubber tube is extruded once can be limited, the blood drop amount dropped on the sampling filter paper is moderate, and the blood sample is prevented from being too few.
4. The device provided by the utility model takes out the sheet through the sampling filter paper, is convenient for taking out the sampling filter paper during the assay, does not need to cut the sampling filter paper in addition, and is simple and convenient to use.
5. The device is convenient for collecting and storing the dried blood spots through the blood spot sampling book, so that the dried blood spots are clean and orderly sampled, stored, transported and taken, and pollution and confusion are avoided.
Drawings
FIG. 1 is a schematic view of the structure of a blood sampling tube in the device of the present utility model.
FIG. 2 is a schematic diagram of the structure of a dried blood spot sampler in the device of the present utility model.
FIG. 3 is a schematic diagram of a process for sampling dried blood spots in the device of the present utility model.
Fig. 4 is a schematic cross-sectional view of the extrusion section of the apparatus of the present utility model.
Reference numerals: 1-blood sampling and sampling tube, 2-dry blood spot sampling book, 3-soft rubber tube, 4-hard plastic arc piece, 5-movable protection arc piece, 6-extrusion limiting cylinder, 7-fixed buckle, 8-positioning cylinder, 9-blood drop head, 10-end cover, 11-cover, 12-sampling page, 13-dry blood spot sampling area, 14-information filling area, 15-positioning groove, 16-sampling filter paper, 17-filter paper taking piece, 18-fixed buckle, 19-sealing cap, 20-reinforced support bar and 21-blood taking cap.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 to 4, a dry blood spot sampling tube and a matched sampling book comprise a blood sampling tube 1 and a dry blood spot sampling book 2; the blood sampling tube 1 comprises a blood storage section and an extrusion section connected below the blood storage section; the extrusion section comprises a soft rubber tube 3 and a hard plastic arc piece 4 which are connected with each other; the lower part of the extrusion section is connected with a positioning cylinder 8 with an opening at the bottom; a blood drop head 9 communicated with the extrusion section is arranged in the positioning cylinder 8; the dried blood spot sampling book comprises a cover 11 and a sampling page 12; the cover 11 and the sampling page 12 can be folded in half; the sampling page 12 is provided with a dry blood spot sampling area 13 and an information filling area 14; positioning grooves 15 are distributed on the dried blood spot sampling area 13; a sampling filter paper 16 is arranged in the positioning groove 15; the sampling filter paper 16 is connected with a filter paper taking-out sheet 17 extending out of the positioning groove 15; the positioning cylinder 8 is matched with the positioning groove 15.
A hard extrusion limiting cylinder 6 is arranged in the soft rubber tube 3; the upper end of the extrusion limiting cylinder 6 is communicated with the blood storage section, and the lower end of the extrusion limiting cylinder is open.
The hard plastic arc piece 4 is provided with a movable protection arc piece 5 which can be opened movably.
One end of the movable protection arc piece 5 is hinged with the hard plastic arc piece 4, and the other end is provided with a fixed buckle 7; the hard plastic arc piece 4 is provided with a fixed buckle female buckle 18 corresponding to the fixed buckle sub buckle 7.
An end cover 10 correspondingly matched with the positioning cylinder 8 is also arranged.
A sealing cap 19 matched with the blood drop head 9 is arranged in the end cover 10; a rubber sealing layer is arranged in the sealing cap 19.
The application method of the utility model is as follows:
when in use, firstly, a blood sample is collected through the blood sampling tube 1, and the method is the same as the conventional blood collection method by using a blood sampling needle; the positioning cylinder 8 is matched and placed on the positioning groove 15 on the dried blood spot sampling book 2 when the blood spots are taken, the soft rubber tube 3 on the squeezing section is squeezed by hand twisting, at the moment, the blood is squeezed out of the blood dripping head 9 and dripped into the positioning groove 15, and the sampling filter paper 16 is infiltrated; at this time, the blood drops to the middle of the sampling filter paper 16, thereby uniformly filling the sampling filter paper 16; after collecting the appropriate number of blood spots, relevant information of the patient is filled in the information filling area 14, the sampling time of the blood spots and the like; after a certain period of time, the blood spots are completely coagulated to form dry blood spots, and then the cover 11 and the sampling page 12 can be folded in half to protect the dry blood spots; when the dried blood spots are required to be tested, the sampling filter paper 16 with the dried blood spots can be taken out from the positioning groove 15 by only pulling the filter paper taking-out piece 17, and the test is performed without cutting.
Example 2:
this embodiment differs from embodiment 1 in that: at least two groups of reinforcing support bars 20 are arranged in the soft rubber tube 3.
The method of use of this example is the same as that of example 1.
Example 3:
this embodiment differs from embodiment 2 in that: the top of the blood storage section is provided with a blood taking cap 21.
The method of use of this example is the same as that of example 1.
Example 4:
this embodiment differs from embodiment 3 in that: at least two groups of reinforcing support bars 20 are arranged in the soft rubber tube 3. The top of the blood storage section is provided with a blood taking cap 21.
The method of use of this example is the same as that of example 1.
The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent arrangements of parts may be made to the present utility model within the spirit and scope of the utility model, and such modifications and equivalents should be considered to fall within the scope of the utility model.
Claims (5)
1. A dried blood spot sampling device, characterized in that: comprises a blood sampling tube (1) and a dry blood spot sampling book (2); the blood sampling tube (1) comprises a blood storage section and an extrusion section connected below the blood storage section; the extrusion section comprises soft rubber tubes (3) and hard plastic arc sheets (4) which are connected with each other; the lower part of the extrusion section is connected with a positioning cylinder (8) with an opening at the bottom; a blood drop head (9) communicated with the extrusion section is arranged in the positioning cylinder (8);
the dried blood spot sampling book comprises a cover (11) and a sampling page (12); the cover (11) and the sampling page (12) can be folded in half; the sampling page (12) is provided with a dried blood spot sampling area (13) and an information filling area (14); positioning grooves (15) are distributed on the dry blood spot sampling area (13); a sampling filter paper (16) is arranged in the positioning groove (15); the sampling filter paper (16) is connected with a filter paper taking-out sheet (17) which extends out of the positioning groove (15);
the positioning cylinder (8) is matched with the positioning groove (15);
a hard extrusion limiting cylinder (6) is arranged in the soft rubber tube (3); the upper end of the extrusion limiting cylinder (6) is communicated with the blood storage section, and the lower end of the extrusion limiting cylinder is open;
the hard plastic arc piece (4) is provided with a movable protective arc piece (5) which can be opened movably;
one end of the movable protection arc piece (5) is hinged with the hard plastic arc piece (4), and the other end is provided with a fixed buckle (7); the hard plastic arc piece (4) is provided with a fixed buckle female buckle (18) corresponding to the fixed buckle sub buckle (7).
2. The dried blood spot sampling device of claim 1, wherein: and an end cover (10) correspondingly matched with the positioning cylinder (8) is also arranged.
3. The dried blood spot sampling device of claim 2, wherein: a sealing cap (19) matched with the blood dripping head (9) is arranged in the end cover (10); a rubber sealing layer is arranged in the sealing cap (19).
4. The dried blood spot sampling device of claim 1, wherein: at least two groups of reinforcing support bars (20) are arranged in the soft rubber tube (3).
5. The dried blood spot sampling device of claim 1, wherein: the top of the blood storage section is provided with a blood taking cap (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223140925.5U CN219641305U (en) | 2022-11-25 | 2022-11-25 | Dry blood spot sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223140925.5U CN219641305U (en) | 2022-11-25 | 2022-11-25 | Dry blood spot sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219641305U true CN219641305U (en) | 2023-09-05 |
Family
ID=87811127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223140925.5U Active CN219641305U (en) | 2022-11-25 | 2022-11-25 | Dry blood spot sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219641305U (en) |
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2022
- 2022-11-25 CN CN202223140925.5U patent/CN219641305U/en active Active
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