CN110507332B - Blood sampling device with dual range - Google Patents
Blood sampling device with dual range Download PDFInfo
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- CN110507332B CN110507332B CN201910907019.7A CN201910907019A CN110507332B CN 110507332 B CN110507332 B CN 110507332B CN 201910907019 A CN201910907019 A CN 201910907019A CN 110507332 B CN110507332 B CN 110507332B
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- blood collection
- tube
- capillary blood
- blood
- pipe
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150236—Pistons, i.e. cylindrical bodies that sit inside the syringe barrel, typically with an air tight seal, and slide in the barrel to create a vacuum or to expel blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150343—Collection vessels for collecting blood samples from the skin surface, e.g. test tubes, cuvettes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150351—Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Hematology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Manufacturing & Machinery (AREA)
- Dermatology (AREA)
- External Artificial Organs (AREA)
Abstract
The invention discloses a blood sampling device with double measuring ranges, which comprises an air bag, a piston, a connecting ring, a connecting pipe and a blood sampling pipe, wherein the piston is connected with the air bag through the connecting ring; when the piston is embedded into the upper end of the connecting ring in a sealing connection manner, a closed form is formed, and at the moment, when blood is collected by the capillary principle of the blood collection tube, the blood reaches the opening structure of the blood collection tube and automatically stops collecting the blood, so that small-range blood collection is formed; and after opening the piston from the upper end of go-between, form the form of intercommunication, can continue upwards taking a blood sample until being full of whole heparin tube after the open structure of heparin tube is reached to blood like this, form the blood sampling device of wide range, so form two kinds of different ranges, use very nimble.
Description
Technical Field
The invention relates to a blood sampling device with double measuring ranges.
Background
Capillary blood collection tubes are common tools for analyzing blood in medical departments such as hospitals. The capillary blood collection tube is made of a glass tube which is small in inner diameter, is provided with openings at two ends and is communicated with the glass tube, one end of the capillary blood collection tube is in contact with blood to be collected when the blood is collected, and the blood to be collected automatically enters the interior of the micro capillary blood collection tube by utilizing the capillary principle.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: provides a blood sampling device with two ranges and adjustable ranges.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a blood sampling device with double measuring ranges comprises an air bag, a piston, a connecting ring, a connecting pipe and a capillary blood sampling pipe; the upper end of the air bag is communicated with a connecting ring; a piston is arranged on one side of the upper end of the connecting ring; the piston is embedded into the upper end of the connecting ring in a sealing manner; the lower end of the air bag is communicated with and provided with a connecting pipe; the lower end of the connecting pipe is inserted into and connected with the capillary blood collection pipe; the upper end of the capillary blood collection tube is inserted into the connecting tube, and the lower end of the capillary blood collection tube extends to the lower part of the connecting tube; an opening structure is arranged on the side part of the capillary blood collection tube; the opening structure is positioned below the lower end of the connecting pipe.
Further, the opening structure is a micropore.
Furthermore, the opening structure comprises an installation opening, a moving pipe, an elastic membrane, a positioning internal thread column and a rotary driving screw rod; the side part of the capillary blood collecting tube is provided with an installation opening; the installation opening is provided with an elastic membrane for sealing connection; the moving pipe is penetrated, sealed and fixed in the middle of the elastic membrane; the inner end of the moving tube extends into the capillary blood collection tube, and the outer end of the moving tube extends to the outer side of the capillary blood collection tube; the positioning internal thread column is arranged on one side of the capillary blood collection tube and is positioned below the moving tube; the upper end of the rotary driving screw is rotatably clamped below the moving pipe, and the lower end of the rotary driving screw is rotatably connected in the positioning internal thread column.
Further, the mounting opening is of a rectangular structure.
Further, the elastic membrane is made of high-elasticity rubber materials.
Furthermore, the outer side around the middle part of the capillary blood collection tube and the inner side around the lower end of the connecting tube are fixedly connected in a sealing way.
The invention has the advantages of
1. When the piston is embedded into the upper end of the connecting ring in a sealing connection manner, a closed form is formed, and at the moment, when blood is collected by the capillary principle of the capillary blood collection tube, the blood reaches the opening structure of the capillary blood collection tube and automatically stops collecting blood, so that small-range blood collection is formed; and after the piston is opened from the upper end of the connecting ring, a communicated form is formed, so that blood can continue to be upwards collected until the whole capillary blood collecting tube is full of blood after reaching the opening structure of the capillary blood collecting tube, a large-range blood collection is formed, two blood collecting devices with different ranges are formed, and the use is very flexible.
2. The small-range blood sampling volume can be adjusted, the lower end thread of the rotary driving screw is rotatably connected in the positioning internal thread column, so that the upper end of the rotary driving screw rotates to drive the moving tube to move up and down on the elastic membrane, the position of the moving tube above and below the capillary blood sampling tube is changed, the position of the moving tube when liquid reaches different heights is changed, and the purpose of adjusting the small-range volume is achieved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view of a.
Fig. 3 is a side view of the structure of fig. 2.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 3, a blood sampling device with dual ranges comprises an air bag 1, a piston 3, a connecting ring 2, a connecting pipe 4 and a capillary blood sampling pipe 5; the upper end of the air bag 1 is communicated with a connecting ring 2; a piston 3 is arranged on one side of the upper end of the connecting ring 2; the piston 3 is embedded in the upper end of the connecting ring 2 and is connected with the inner part of the upper end of the connecting ring in a sealing way; the lower end of the air bag 1 is communicated with and provided with a connecting pipe 4; the lower end of the connecting pipe 4 is inserted into and connected with a capillary blood collection pipe 5; the upper end of the capillary blood collection tube 5 is inserted into the connecting tube 4, and the lower end of the capillary blood collection tube 5 extends to the lower part of the connecting tube 4; the side part of the capillary blood collection tube 5 is provided with an opening structure 6; the opening structure 6 is positioned below the lower end of the connecting pipe 4. The opening structure 6 described in this embodiment is a micro-hole.
When the piston 3 is embedded into the upper end of the connecting ring 2 in a sealing connection mode, a closed mode is formed, blood collection is automatically stopped when blood reaches the micropores of the opening structure of the capillary blood collection tube 5 when blood is collected through the capillary principle of the capillary blood collection tube 5, and therefore small-range blood collection is formed; and after opening piston 3 from the upper end of go-between 2, form the form of intercommunication, can continue upwards taking a blood sample until being full of whole capillary heparin tube 5 after the open structure of capillary heparin tube is reached to blood like this, form the collection blood of wide range, form the blood sampling device of two kinds of different ranges like this, use very nimble.
Example 2
As shown in fig. 1 to 3, the present embodiment is different from embodiment 1 in an opening structure 6, and further, the opening structure 6 includes a mounting opening 51, a moving pipe 62, an elastic membrane 61, a positioning internal thread column 64, a rotary driving screw 63; the side of the capillary blood collection tube 5 is provided with an installation opening 51; the installation opening 51 is provided with an elastic membrane 61 for sealing connection; the moving pipe 62 is penetrated, sealed and fixed in the middle of the elastic membrane 61; the inner end of the moving tube 62 extends into the capillary blood collection tube 5, and the outer end extends to the outer side of the capillary blood collection tube 5; the positioning internal thread column 64 is arranged at one side of the capillary blood collection tube 5 and is positioned below the moving tube 62; the upper end of the rotary driving screw 63 is rotatably clamped below the moving pipe 62, and the lower end of the rotary driving screw 63 is rotatably connected in the positioning internal thread column 64. Further, the mounting opening 51 has a rectangular structure. Further, the elastic membrane 61 is made of an elastic rubber material. Further, the outer side around the middle part of capillary blood collection tube 5 and the inner side around the lower end of connecting tube are fixedly connected in a sealing way.
In this embodiment, the driving screw 63 is rotated to drive the moving tube 62 to move up and down on the elastic membrane 61, so as to change the up and down position of the moving tube 62, thereby changing the volume of a small range.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A blood sampling device with double measuring ranges is characterized by comprising an air bag, a piston, a connecting ring, a connecting pipe and a capillary blood sampling pipe; the upper end of the air bag is communicated with a connecting ring; a piston is arranged on one side of the upper end of the connecting ring; the piston is embedded into the upper end of the connecting ring in a sealing manner; the lower end of the air bag is communicated with and provided with a connecting pipe; the lower end of the connecting pipe is inserted into and connected with the capillary blood collection pipe; the upper end of the capillary blood collection tube is inserted into the connecting tube, and the lower end of the capillary blood collection tube extends to the lower part of the connecting tube; an opening structure is arranged on the side part of the capillary blood collection tube; the opening structure is positioned below the lower end of the connecting pipe; the opening structure comprises an installation opening, a moving pipe, an elastic membrane, a positioning internal thread column and a rotary driving screw rod; the side part of the capillary blood collecting tube is provided with an installation opening; the installation opening is provided with an elastic membrane for sealing connection; the moving pipe is penetrated, sealed and fixed in the middle of the elastic membrane; the inner end of the moving tube extends into the capillary blood collection tube, and the outer end of the moving tube extends to the outer side of the capillary blood collection tube; the positioning internal thread column is arranged on one side of the capillary blood collection tube and is positioned below the moving tube; the upper end of the rotary driving screw is rotatably clamped below the moving pipe, and the lower end of the rotary driving screw is rotatably connected in the positioning internal thread column.
2. The dual-range blood collection device of claim 1, wherein the opening structure is a micro-hole.
3. The dual-range blood collection device of claim 1, wherein said mounting opening is rectangular in configuration.
4. The dual-range blood collection device of claim 1, wherein the resilient membrane is made of a high-elasticity rubber material.
5. The dual-range blood collection device as recited in claim 1, wherein the capillary blood collection tube is fixedly and hermetically connected to the inner side of the lower end of the connection tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910907019.7A CN110507332B (en) | 2019-09-24 | 2019-09-24 | Blood sampling device with dual range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910907019.7A CN110507332B (en) | 2019-09-24 | 2019-09-24 | Blood sampling device with dual range |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110507332A CN110507332A (en) | 2019-11-29 |
| CN110507332B true CN110507332B (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910907019.7A Active CN110507332B (en) | 2019-09-24 | 2019-09-24 | Blood sampling device with dual range |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202255963U (en) * | 2011-10-11 | 2012-05-30 | 张学杰 | Micro sampler for medical examination |
| CN104116513A (en) * | 2013-04-23 | 2014-10-29 | 马荣华 | Self-priming type quantitative micro-quantity blood collection tube |
| CN205126255U (en) * | 2015-11-17 | 2016-04-06 | 东台市科华医疗器械有限公司 | High accuracy ration micro blood collection pipette |
| CN107693027A (en) * | 2016-08-08 | 2018-02-16 | 纳格·南科国际有限公司 | Capillary transfer pipette and correlation technique |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180008182A1 (en) * | 2016-07-08 | 2018-01-11 | Tony Randall Wann | Multi-function capillary tube syringe with retractable needle for arterial blood drawing |
-
2019
- 2019-09-24 CN CN201910907019.7A patent/CN110507332B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202255963U (en) * | 2011-10-11 | 2012-05-30 | 张学杰 | Micro sampler for medical examination |
| CN104116513A (en) * | 2013-04-23 | 2014-10-29 | 马荣华 | Self-priming type quantitative micro-quantity blood collection tube |
| CN205126255U (en) * | 2015-11-17 | 2016-04-06 | 东台市科华医疗器械有限公司 | High accuracy ration micro blood collection pipette |
| CN107693027A (en) * | 2016-08-08 | 2018-02-16 | 纳格·南科国际有限公司 | Capillary transfer pipette and correlation technique |
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| Publication number | Publication date |
|---|---|
| CN110507332A (en) | 2019-11-29 |
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