CN106236114A - Arterial blood drawing pin - Google Patents
Arterial blood drawing pin Download PDFInfo
- Publication number
- CN106236114A CN106236114A CN201610709349.1A CN201610709349A CN106236114A CN 106236114 A CN106236114 A CN 106236114A CN 201610709349 A CN201610709349 A CN 201610709349A CN 106236114 A CN106236114 A CN 106236114A
- Authority
- CN
- China
- Prior art keywords
- syringe
- annular
- silica gel
- groove
- syringe needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
-
- 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
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
-
- 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
- A61B5/150755—Blood sample preparation for further analysis, e.g. by separating blood components or by mixing
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
nullThe invention discloses a kind of arterial blood drawing pin，Including syringe needle (1)、Syringe、Piston push-pull rod (7)，It is characterized in that: syringe is divided into syringe barrel (6) and syringe needle to connect seat (12)，Syringe needle is embedded with a silica gel check valve (2) in connecting seat，Syringe barrel is connected seat and connects one section of end with syringe needle is bimetallic tube，A ring vaccum annular seal space (5) is formed between bimetallic tube tube wall，It is provided with an annular in inner layer tube wall and filters groove (8)，Filter setting-in one annular grumeleuse filter membrane (3) in groove，Filter groove and be provided with several blood circulation hole (11) communicated with ring vaccum annular seal space，Annular soft silica gel sealing ring fixed groove (9) is had outside outer wall，In soft silica gel sealing ring (4) setting-in is fixed on，Annular soft silica gel sealing ring fixed groove is provided with several puncturing hole (10) communicated with ring vaccum annular seal space.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of arterial blood drawing pin.
Background technology
Arterial blood gas analysis is for evaluating an important lab testing of the oxygenate of patient, ventilation and acid-base status.Logical
Cross arterial blood gas analysis and it will be seen that Pulmonary Function and body fluid acid-base balance state, and as mechanical ventilation parameters regulation, treatment
Effect analyzes one of important evidence with Index for diagnosis.Along with the development of medical skill, arterial blood gas analysis obtains clinically
It is widely applied.
Arterial blood gas analysis result is most important to the diagnosis of respiratory failure, acid base imbalance accurately, and qualified
Arterial blood sample is to ensure that Results of Blood-gas premise accurately.Blood gas analysis typically uses whole blood sample, it is desirable to its sample is just
Really gather, completely cut off air, timely censorship, and require that sample is without grumeleuse, haemolysis etc..Research shows, the specimen of blood gas analysis does not conforms to
Lattice reason mainly includes blood coagulation, be mixed into that venous blood, sample hemolysis, specimen amount be few and censored time is long etc., wherein sample
Solidification is the defective one of the main reasons of specimen, accounts for the 20-30% of defective sample.
At present, conventional clinically arterial blood drawing mainly has Three models: one is the pressure utilizing arteries self
From full formula arterial blood drawing pin, two is piston injection-type arterial blood drawing pin, and this hemostix needs bimanualness.Adopt the most exactly
Arterial blood air tube, Inhaled Heparin laggard row arterial blood drawing is substituted by ordinary syringe.The most existing arterial blood drawing pattern is all
Being still by anticoagulant and be coated directly on inwall, the dosage of anticoagulant and concentration are also difficult to accurately control, and anticoagulant dissolves speed
Degree is slow, is difficult in blood be evenly distributed, and frequently results in blood coagulation, and then blocks blood gas analyzer specimen needle and have a strong impact on
Results of Blood-gas.It addition, existing blood gas analyzer is frequently with integrated form reagent bag, each reagent bag can do tens to hundreds of
Test, the price of each reagent bag is the highest.Blocking blood gas analyzer specimen needle when sample solidification, its final result is the most whole
Individual reagent bag cancels.Therefore, it is to avoid sample solidifies and prevents blood gas analyzer specimen needle from blocking, to ensureing Results of Blood-gas matter
Amount and control blood gas analysis cost are most important.
Under the conditions of prior art, sample freezing problem is difficult to avoid that, and blood gas analysis uses whole blood sample, it is difficult to
Identify sample solidification before analysis, often could identify after specimen needle blocks.Therefore, take appropriate measures prevention blood gas analysis
Instrument sucks grumeleuse and is only the effective way preventing vim and vigour specimen needle from blocking.
Summary of the invention
It is an object of the invention to provide to overcome the deficiencies in the prior art one with grumeleuse filtering function, can have
Prevent to effect a kind of arterial blood drawing pin of grumeleuse blocking blood gas analyzer specimen needle possible in sample.Arterial blood drawing pin includes pin
Head, syringe, piston push-pull rod, syringe is divided into syringe barrel and syringe needle to connect seat, and it is unidirectional that syringe needle is embedded with a silica gel in connecting seat
Valve, syringe barrel is connected seat and connects one section of end with syringe needle is bimetallic tube, forms a ring vaccum annular seal space between bimetallic tube tube wall,
It is provided with an annular in inner layer tube wall and filters groove, filter setting-in one annular grumeleuse filter membrane in groove, filter groove and be provided with
, there is an annular soft silica gel sealing ring fixed groove in several blood circulation holes communicated with ring vaccum annular seal space outside outer wall,
In soft silica gel sealing ring setting-in is fixed on, annular soft silica gel sealing ring fixed groove is provided with several with ring vaccum annular seal space phase
Logical puncturing hole.
Described vacuum-sealed cavity, its volume >=1ml.
Described grumeleuse filter membrane is made up of the microporous filter membrane that multilamellar aperture is different, is 20 μm and two-layer including two-layer aperture
Aperture is the microporous filter membrane of 15 μm.
From technical scheme it can be seen that owing to devising vacuum-sealed cavity and grumeleuse filter membrane structure, tremulous pulse
During blood sampling, first blood flow into the inner chamber of syringe through silica gel check valve.During pattern detection, need to first press piston push-pull rod,
Under the mating reaction of silica gel check valve and grumeleuse filter membrane ring, blood plasma and mononuclear blood cell are filtered in vacuum-sealed cavity, can
The grumeleuse that can exist is blocked in the inner chamber of syringe.Then, the specimen needle of blood gas analyzer wears out soft silica gel sealing ring, enters
In vacuum-sealed cavity, complete to inhale sample action.And soft silica gel sealing ring had both been prone to be punctured by blood gas analyzer specimen needle inhale sample, exist again
Close puncturing hole while extracting blood gas analyzer specimen needle, can effectively prevent blood outflow and biological pollution.Fully meet
The present invention is with grumeleuse filtering function, the invention that can be effectively prevented possible in sample grumeleuse blocking blood gas analyzer specimen needle
Purpose.
Accompanying drawing explanation
Fig. 1 is the structural representation of arterial blood drawing pin of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the invention will be further described.
Embodiment 1, sees accompanying drawing 1, and a kind of arterial blood drawing pin, including syringe needle 1, syringe, piston push-pull rod 7, syringe is divided into
Syringe barrel 6 and syringe needle connect seat 12, and syringe needle is embedded with a silica gel check valve 2 in connecting seat, and syringe barrel is connected seat with syringe needle
Connecting one section of end is bimetallic tube, forms a ring vaccum annular seal space 5, be provided with an annular in inner layer tube wall between bimetallic tube tube wall
Filter groove 8, setting-in one annular grumeleuse filter membrane 3 in filtration groove, filters groove and is provided with several and ring vaccum annular seal space
, there is an annular soft silica gel sealing ring fixed groove 9 in the blood circulation hole 11 communicated outside outer wall, soft silica gel sealing ring 4 is embedded in
In being fixed on, annular soft silica gel sealing ring fixed groove is provided with several puncturing hole 10 communicated with ring vaccum annular seal space.
Described vacuum-sealed cavity, its volume >=1ml.
Described grumeleuse filter membrane is made up of the microporous filter membrane that multilamellar aperture is different, is 20 μm and two-layer including two-layer aperture
Aperture is the microporous filter membrane of 15 μm.
Claims (3)
1. an arterial blood drawing pin, including syringe needle (1), syringe, piston push-pull rod (7), it is characterised in that: syringe is divided into syringe cylinder
Body (6) and syringe needle connect seat (12), and syringe needle is embedded with a silica gel check valve (2) in connecting seat, and syringe barrel is connected seat with syringe needle
Connecting one section of end is bimetallic tube, forms a ring vaccum annular seal space (5), be provided with an annulus in inner layer tube wall between bimetallic tube tube wall
Shape filters groove (8), filters setting-in one annular grumeleuse filter membrane (3) in groove, filters groove and be provided with several and ring vaccum
, there is annular soft silica gel sealing ring fixed groove (9) in the blood circulation hole (11) that annular seal space communicates outside outer wall, soft silica gel is close
In seal ring (4) setting-in is fixed on, annular soft silica gel sealing ring fixed groove is provided with and several communicates with ring vaccum annular seal space
Puncturing hole (10).
A kind of arterial blood drawing pin the most according to claim 1, it is characterised in that: described vacuum-sealed cavity, its volume >=
1ml。
A kind of arterial blood drawing pin the most according to claim 1, it is characterised in that: described grumeleuse filter membrane is by multilamellar aperture
Different microporous filter membrane compositions, are 20 μm and microporous filter membrane that two-layer aperture is 15 μm including two-layer aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610709349.1A CN106236114A (en) | 2016-08-24 | 2016-08-24 | Arterial blood drawing pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610709349.1A CN106236114A (en) | 2016-08-24 | 2016-08-24 | Arterial blood drawing pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106236114A true CN106236114A (en) | 2016-12-21 |
Family
ID=57595004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610709349.1A Pending CN106236114A (en) | 2016-08-24 | 2016-08-24 | Arterial blood drawing pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106236114A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007006973A (en) * | 2005-06-28 | 2007-01-18 | Sekisui Chem Co Ltd | Blood sampling and separating apparatus |
| CN102048546A (en) * | 2010-12-30 | 2011-05-11 | 中国人民解放军第三军医大学第一附属医院 | System for monitoring, collecting and detecting biological information of human blood in real time |
| CN203677102U (en) * | 2013-11-25 | 2014-07-02 | 黑龙江农垦职业学院 | Vacuum blood collection tube |
| CN204520717U (en) * | 2015-04-02 | 2015-08-05 | 山东省立医院 | A kind of hemostix |
| CN206324789U (en) * | 2016-08-24 | 2017-07-14 | 川北医学院附属医院 | Arterial blood drawing pin |
-
2016
- 2016-08-24 CN CN201610709349.1A patent/CN106236114A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007006973A (en) * | 2005-06-28 | 2007-01-18 | Sekisui Chem Co Ltd | Blood sampling and separating apparatus |
| CN102048546A (en) * | 2010-12-30 | 2011-05-11 | 中国人民解放军第三军医大学第一附属医院 | System for monitoring, collecting and detecting biological information of human blood in real time |
| CN203677102U (en) * | 2013-11-25 | 2014-07-02 | 黑龙江农垦职业学院 | Vacuum blood collection tube |
| CN204520717U (en) * | 2015-04-02 | 2015-08-05 | 山东省立医院 | A kind of hemostix |
| CN206324789U (en) * | 2016-08-24 | 2017-07-14 | 川北医学院附属医院 | Arterial blood drawing pin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161221 |
|
| WD01 | Invention patent application deemed withdrawn after publication |